Configuring Apache FOP Programmatically

- + @@ -1451,14 +1451,20 @@ NOTE: - + - + + + + + + + diff --git a/checkstyle-5.1.xml b/checkstyle-5.1.xml deleted file mode 100644 index 8a393d452..000000000 --- a/checkstyle-5.1.xml +++ /dev/null @@ -1,204 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/known-issues.xml b/known-issues.xml index 2ef4b7102..622e6a79a 100644 --- a/known-issues.xml +++ b/known-issues.xml @@ -17,75 +17,69 @@ --> - - MIF and SVG output support have not been restored, yet. - - - RTF output is inferior to other output formats supported by FOP. - For details, please see the "Output Targets" page of the release - you're using. - - - Auto table layout is not implemented, yet. - - - Footnotes may overlap with text of the region-body in multi-column - documents. - - - Space resolution does not work between footnote regions. - - - There's a problem involving nested block-containers and - reference-orientation 180/-180 (Bugzilla #36391) - - - block-containers with no height currently don't create a fence for - spaces as they should (they behave like a normal block). - - - Preserved linefeeds in fo:character are not handled correctly. - - - An empty block currently produces a fence for stacking constraints - which it shouldn't. - - - There are several small problems around white space handling. - - - Images currently don't shrink so they fit on a page when they are - too big and shrinking is allowed to happen. - - - inline-container may not work as expected. - - - letter-spacing and word-spacing properties may not work as expected. - - - leaders with leader-pattern="use-content" may not work as expected. - - - keep-with-previous doesn't work inside tables and lists, yet. - - - If two consecutive pages don't have the same available width, the - content currently isn't properly fit into the available space on - the new page. - - - background-images on page-number-citations are not placed correctly. - - - Not all FO elements can be referenced by their "id", most notably: - table-body, table-header, table-footer and table-row. - - - Border and padding conditionality are not supported on table-cells, yet. - - - Column balancing in multi-column documents may not work as expected - (Bugzilla #36356) - + diff --git a/src/documentation/content/.htaccess b/src/documentation/content/.htaccess index b020b2422..0edc84f75 100644 --- a/src/documentation/content/.htaccess +++ b/src/documentation/content/.htaccess @@ -1,27 +1,27 @@ # redirect moved files -RedirectMatch Permanent ^/fop/anttask(.*) http://xmlgraphics.apache.org/fop/1.0/anttask$1 -RedirectMatch Permanent ^/fop/compiling(.*) http://xmlgraphics.apache.org/fop/1.0/compiling$1 -RedirectMatch Permanent ^/fop/configuration(.*) http://xmlgraphics.apache.org/fop/1.0/configuration$1 -RedirectMatch Permanent ^/fop/embedding(.*) http://xmlgraphics.apache.org/fop/1.0/embedding$1 -RedirectMatch Permanent ^/fop/extensions(.*) http://xmlgraphics.apache.org/fop/1.0/extensions$1 -RedirectMatch Permanent ^/fop/fonts(.*) http://xmlgraphics.apache.org/fop/1.0/fonts$1 -RedirectMatch Permanent ^/fop/graphics(.*) http://xmlgraphics.apache.org/fop/1.0/graphics$1 -RedirectMatch Permanent ^/fop/hyphenation(.*) http://xmlgraphics.apache.org/fop/1.0/hyphenation$1 -RedirectMatch Permanent ^/fop/intermediate(.*) http://xmlgraphics.apache.org/fop/1.0/intermediate$1 -RedirectMatch Permanent ^/fop/output(.*) http://xmlgraphics.apache.org/fop/1.0/output$1 -RedirectMatch Permanent ^/fop/pdfa(.*) http://xmlgraphics.apache.org/fop/1.0/pdfa$1 -RedirectMatch Permanent ^/fop/pdfencryption(.*) http://xmlgraphics.apache.org/fop/1.0/pdfencryption$1 -RedirectMatch Permanent ^/fop/pdfx(.*) http://xmlgraphics.apache.org/fop/1.0/pdfx$1 -RedirectMatch Permanent ^/fop/running(.*) http://xmlgraphics.apache.org/fop/1.0/running$1 -RedirectMatch Permanent ^/fop/servlets(.*) http://xmlgraphics.apache.org/fop/1.0/servlets$1 -RedirectMatch Permanent ^/fop/upgrading(.*) http://xmlgraphics.apache.org/fop/1.0/upgrading$1 +RedirectMatch Permanent ^/fop/anttask(.*) http://xmlgraphics.apache.org/fop/1.1rc1/anttask$1 +RedirectMatch Permanent ^/fop/compiling(.*) http://xmlgraphics.apache.org/fop/1.1rc1/compiling$1 +RedirectMatch Permanent ^/fop/configuration(.*) http://xmlgraphics.apache.org/fop/1.1rc1/configuration$1 +RedirectMatch Permanent ^/fop/embedding(.*) http://xmlgraphics.apache.org/fop/1.1rc1/embedding$1 +RedirectMatch Permanent ^/fop/extensions(.*) http://xmlgraphics.apache.org/fop/1.1rc1/extensions$1 +RedirectMatch Permanent ^/fop/fonts(.*) http://xmlgraphics.apache.org/fop/1.1rc1/fonts$1 +RedirectMatch Permanent ^/fop/graphics(.*) http://xmlgraphics.apache.org/fop/1.1rc1/graphics$1 +RedirectMatch Permanent ^/fop/hyphenation(.*) http://xmlgraphics.apache.org/fop/1.1rc1/hyphenation$1 +RedirectMatch Permanent ^/fop/intermediate(.*) http://xmlgraphics.apache.org/fop/1.1rc1/intermediate$1 +RedirectMatch Permanent ^/fop/output(.*) http://xmlgraphics.apache.org/fop/1.1rc1/output$1 +RedirectMatch Permanent ^/fop/pdfa(.*) http://xmlgraphics.apache.org/fop/1.1rc1/pdfa$1 +RedirectMatch Permanent ^/fop/pdfencryption(.*) http://xmlgraphics.apache.org/fop/1.1rc1/pdfencryption$1 +RedirectMatch Permanent ^/fop/pdfx(.*) http://xmlgraphics.apache.org/fop/1.1rc1/pdfx$1 +RedirectMatch Permanent ^/fop/running(.*) http://xmlgraphics.apache.org/fop/1.1rc1/running$1 +RedirectMatch Permanent ^/fop/servlets(.*) http://xmlgraphics.apache.org/fop/1.1rc1/servlets$1 +RedirectMatch Permanent ^/fop/upgrading(.*) http://xmlgraphics.apache.org/fop/1.1rc1/upgrading$1 # redirect to versioned documentation # Current stable release Redirect Temp /fop/stable http://xmlgraphics.apache.org/fop/1.0 # Current unstable release (or trunk if no beta is the latest release) -Redirect Temp /fop/unstable http://xmlgraphics.apache.org/fop/trunk +Redirect Temp /fop/unstable http://xmlgraphics.apache.org/fop/1.1rc1 # Latest release Redirect Temp /fop/current http://xmlgraphics.apache.org/fop/1.0 diff --git a/src/documentation/content/doap.rdf b/src/documentation/content/doap.rdf index 8ccd82bf6..7ce3d6d58 100644 --- a/src/documentation/content/doap.rdf +++ b/src/documentation/content/doap.rdf @@ -15,7 +15,6 @@ See the License for the specific language governing permissions and limitations under the License. --> - - Previous stable release - 2008-08-05 - 0.95 + Upcoming release (candidate) + 2012-07-02 + 1.1rc1 - Latest stable release + Current release (stable) 2010-07-21 1.0 + + + Previous release (stable) + 2008-08-05 + 0.95 + + diff --git a/src/documentation/content/xdocs/1.1rc1/accessibility.xml b/src/documentation/content/xdocs/1.1rc1/accessibility.xml new file mode 100644 index 000000000..412519d8b --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/accessibility.xml @@ -0,0 +1,167 @@ + + + + + +

+ Apache™ FOP: Accessibility +

+ +

+ Overview +

+ This page describes the + accessibility + features of Apache™ FOP. + Section 508 defines accessibility in the context + of electronic documents for the USA but other countries have similar requirements. +

+ Accessibility features are available only for the PDF output format and there are some + implementation limitations. Also, certain actions must be undertaken by the content creator + to ensure that FOP can create a truly accessible document. +

+ Enabling accessibility +

There are 3 ways to enable accessibility:

+ Command line: The command line option -a turns on accessibility: + fop -a -fo mydocument.fo -pdf mydocument.pdf +
+ Embedding: userAgent.setAccessibility(true); +

+ Optional setting in fop.xconf file: +

+          <fop version="1.0">
+              <accessibility>true</accessibility>
+              ...
+          </fop>
+

+ When accessibility is enabled, additional information relating to the logical structure of + the document is added to the PDF. That information allows the PDF viewer (or a + text-to-speech application) to retrieve the natural reading order of the document. +

+ The processing of the logical structure is memory-hungry. You may need to adjust the + Java heap size in order to process larger files. +

+ Changes to your XSL-FO input files +

+ Apache FOP cannot automatically generate accessible PDFs. Some of the work can only be + performed by the content provider. Following are some changes that may be necessary to + your XSL-FO content in order to generate really accessible documents: +

Table cells must have a table row as their parent.
+ Images must have an alternate text: use the fox:alt-text extension attribute + (in the fox namespace) on + fo:external-graphic and fo:instream-foreign-object to specify a + short text describing the image. +
+ Ensure that the order of fo:block-container elements in a page corresponds to + the reading order. +
+ Specify the natural language of the document using the language and country properties + (or via the xml:lang shorthand property). +

+ Customized Tagging +

The PDF Reference defines a set of standard Structure Types to + tag content. For example, ‘P’ is used for identifying paragraphs, ‘H1’ to ‘H6’ for headers, + ‘L’ for lists, ‘Div’ for block-level groups of elements, etc. This standard set is aimed at + improving interoperability between applications producing or consuming PDF.

FOP provides a default mapping of Formatting Objects to elements from that standard set. + For example, fo:page-sequence is mapped to ‘Part’, fo:block is + mapped to ‘P’, fo:list-block to ‘L’, etc.

You may want to customize that mapping to improve the accuracy of the tagging or deal with + particular FO constructs. For example, you may want to make use of the ‘H1’ to ‘H6’ tags to + make the hierarchical structure of the document appear in the PDF. This is achieved by using + the role XSL-FO property:

+ ... +<fo:block role="H1" font-weight="bold">I. A Level 1 Heading</fo:block> +<fo:block>This is the first paragraph of the first section...</fo:block> +... +

If a non-standard structure type is specified, FOP will issue a warning and fall back to + the default tag associated to the Formatting Object.

+ Testing +

+ Accessible PDFs can be tested, for example, using Adobe Acrobat Professional. Its + Accessibility Check feature creates a report indicating any deficiencies with a PDF + document. Alternatively, you can just let a screen reader read the document aloud. +

+ Limitations +

+ Accessibility support in Apache FOP is relatively new, so there are certain + limitations. Please help us identify and close any gaps. +

+ The natural language can currently only be specified at the page-sequence level. The + document language is derived from the language of the first page-sequence. It is + currently not possible to override the language inside the content below the + page-sequence level. +
+ It's currently not possible to specify the expanded form of an abbreviation or acronym. +
+ SVG graphics (or images in general) are treated as a single figure. Text contained in + SVGs is not accessible. It's only possible to work with fox:alt-text. +
+ The side regions (region-before, region-after etc.) are currently not specially + identified. Screen readers may read their content at page changes. +

+ Related Links +

+ Many resources providing guidance about creating accessible documents can be found on the + web. Here are a few links, along with additional resources around the topic: +

US Government - Website on Section 508
Wikipedia on Accessibility in general
Wikipedia on Accessibility in PDF
+ PDF + Reference 1.4 (look up chapters 9.7 "Tagged PDF" and 9.8 "Accessibility Support") +
PDF/A support in Apache FOP
Developer-oriented details on the accessibility features (on the Wiki)

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/anttask.xml b/src/documentation/content/xdocs/1.1rc1/anttask.xml new file mode 100644 index 000000000..ba53fe7d1 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/anttask.xml @@ -0,0 +1,236 @@ + + + + + +

+ Apache™ FOP: Ant task + $Revision$ +

+ +

+ Apache™ FOP provides an Ant task for automating the document build process. +

+ Description +

+ The FOP Ant task will convert XSL-FO documents to PDF, PS, PCL etc. output + (see Output formats for available formats). +

+ To call FOP tasks within Ant, first add a FOP task definition to your Ant build file. + One method of defining the task is as follows: +

+ + + + + + + + + + + + + + ]]> +

+ Then create FOP tasks within your Ant build file, using the FOP task parameters listed below.

+ +

Parameters for FOP Ant task + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Parameters specified as attributes
Attribute	Description	Required
fofile	XSL-FO file to be rendered	Yes, if no fileset nested element is used
xmlfile	XML input file	Yes, if no fofile is specified
xsltfile	XSLT input file	Yes, if no fofile is specified
outfile	Output filename	Yes, when fofile is used. (This attribute is not valid for filesets.)
format	Possible output formats: + `application/X-fop-awt-preview` + `application/X-fop-print` + `application/X-fop-areatree` + `application/pdf` + `application/postscript` + `application/mif` + `application/rtf`, + `text/richtext`, + `text/rtf` + `application/x-pcl`, + `application/vnd.hp-PCL` + `application/x-afp`, + `application/vnd.ibm.modcap` + `text/plain` + `image/svg+xml` + `image/gif` + `image/png` + `image/tiff` +	No, defaults to `application/pdf`
outdir	Output directory	Required if a fileset is used to specify the files to render; optional for fofile. (Can alternatively specify the full path in the fofile value.)
force	Recreate target files, even if they are newer than their corresponding + source files. Note: This attribute is available in post-0.20.5 + versions (0.20.x nightly build and 1.0dev) only; target files are + always generated (i.e., force=true) in 0.20.5 release. +	No, default is `false`
basedir	Base directory to resolve relative references (e.g., graphics files) within the + FO document. +	No, for single FO File entry, default is to use the location + of that FO file. +
relativebase	For fileset usage only. A value of `true` specifies using the location + of each .fo file as the base directory for resolving relative file references located + within that .fo file. A value of `false` specifies using the value of + basedir for all files within the fileset, or just the current working directory + if basedir is not specified. +	No, default is `false`. +
userconfig	User configuration file (same as the FOP "-c" command line option).	No
messagelevel	Logging level + Possible values: `error`, `warn`, `info`, `verbose`, `debug`. Currently doesn't work in FOP Trunk!!!	No, defaults to `verbose`
logFiles	Controls whether the names of the files that are processed are logged + (`true`) or not (`false`). Currently doesn't work in FOP Trunk!!!	No, default is `true`
throwexceptions	Controls whether or not an exception is thrown if an error occurs during rendering.	Default is `true`

+ + + + + + + + + + + +
Parameters specified as nested elements
Attribute Description Required
fileset FileSets + are used to specify multiple XSL-FO files to be rendered. Yes, if no fofile attribute is supplied
+

Parameters specified as nested elements
Attribute	Description	Required
fileset	FileSets + are used to specify multiple XSL-FO files to be rendered.	Yes, if no fofile attribute is supplied

+ Examples +

+ The following example converts a single XSL-FO file to a PDF document: +

+ + + + + ]]> +

+ This example converts all XSL-FO files within an entire directory to PostScript: +

+ + + + + + + + ]]> +

+ The following example transforms and converts a single XML and XSLT file to an AFP document: +

+ + + + ]]> +

+ This example transforms and converts all XML files within an entire directory to PostScript: +

+ + + + + + + + ]]> +

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/compiling.xml b/src/documentation/content/xdocs/1.1rc1/compiling.xml new file mode 100644 index 000000000..7bfa165b5 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/compiling.xml @@ -0,0 +1,147 @@ + + + + + +

+ Apache™ FOP: Building from Source Code + $Revision$ +

+ +

+ Do You Need To Build? + + + + +

+ Apache™ FOP snapshots are either pre-compiled binary or source. + If you are using a binary snapshot, it is already built and there is no need to build it again. + If you got the source code from a repository snapshot or via Subversion you will need to build FOP. + See the Download Instructions for information about where to obtain binary or repository snapshots, and whether a + binary or source snapshot is best for your needs. +

+ +

+ Set Up Your Environment +

+ JDK +

+ Building FOP requires a minimum Java Development Kit (JDK/SDK) of 1.4 + (A Java Runtime Environment is not sufficient). +

+ CLASSPATH +

+ There is generally no need to setup a classpath. All libraries needed to compile FOP are included + in the source distribution and are referenced by the build script. + You will only need to adjust the classpath if you build FOP in some other way. See the build + script build.xml for details. +

+ JAVA_HOME +

+ The build script uses Apache Ant, a popular + Java-based build tool, which usually requires that the environment variable JAVA_HOME point to + your local JDK root directory. This is true even if you use JDK 1.4 or above, which normally + does not need this setting. +

+ Apache Ant +

+ Apache Ant (Version 1.7 or later) must be installed in order to + build FOP. Following best practices we don't include Ant with FOP anymore. You can find the + instructions to install Ant in the Ant manual on the web. +

+ Run the Build Script +

+ Change to the FOP root directory and build FOP by executing the build script (build.xml) + using the "ant" command. +

+ + The "ant" command is only available on your system if you've properly + installed Apache Ant and added Ant's location to the PATH + environment variable. + +

+ The file build.xml in the FOP root directory is the blueprint that Ant uses for the build. It + contains information for numerous build targets, many of which are building blocks to more + useful target, and others which are primarily used by the FOP developers. + You may benefit from looking through this file to learn more about the various build targets. + To obtain a complete list of useful build targets: +

+ ant -projecthelp +

The most useful targets are:

+ package: Generates the JAR files (default). This is the normal build that + produces a jar file usable for running FOP. +
+ clean : Cleans the build directory. This is useful for making sure that + any build errors are cleaned up before starting a new build. It should not ordinarily be + needed, but may be helpful if you are having problems with the build process itself. +
+ javadocs: Creates the FOP API documentation. + A minimum JDK version of 1.4.2 is required for generating the javadocs. +

To run the build:

+ ant [target ...] +

For example to do a normal build for the "all" target (which is the default):

+ ant +

+ ant all +

To clean the build directory first:

+ ant clean all + + If you want to shorten the build time you can just call the "package" target which + doesn't perform any automated tests during the build. + +

+ Troubleshooting +

If you have problems building FOP, please try the following:

Run the build with the target of "clean", then rerun the build.
Delete the build directory completely, then rerun the build.
+ Make sure you do not have a non-FOP version of xerces.jar, xalan.jar, batik.jar, + or another dependency product somewhere in your CLASSPATH. +
+ If the build still fails, see the Getting Help + page for further help. +

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/complexscripts.xml b/src/documentation/content/xdocs/1.1rc1/complexscripts.xml new file mode 100644 index 000000000..697205531 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/complexscripts.xml @@ -0,0 +1,694 @@ + + + + + +

+ Apache™ FOP: Complex Scripts +

+ +

+ Overview +

+ This page describes the + complex scripts + features of Apache™ FOP, which include: +

Support for languages written with right-to-left scripts, such as Arabic and Hebrew scripts.
Support for languages written with South Asian and Southeast Asian scripts, such as Devanagari, + Khmer, Tamil, Thai, and others.
Support for advanced substitution, reordering, and positioning of glyphs according to language + and script sensitive rules.
Support for advanced number to string formatting.

+ Disabling complex scripts +

Complex script features are enabled by default. If some application of FOP does not + require this support, then it can be disabled in three ways:

+ Command line: The command line option -nocs turns off complex script + features: fop -nocs -fo mydocument.fo -pdf mydocument.pdf +
+ Embedding: userAgent.setComplexScriptFeaturesEnabled(false); +

+ Optional setting in fop.xconf file: +

+<fop version="1.0">
+  <complex-scripts disabled="true"/>
+  ...
+</fop>
+

+ When complex scripts features are enabled, additional information related to bidirectional + level resolution, the association between characters and glyphs, and glyph position adjustments + are added to the internal, parsed representation of the XSL-FO tree and its corresponding + formatted area tree. This additional information will somewhat increase the memory requirements for + processing documents that use these features. +

+ A document author need not make explicit use of any complex scripts feature in order + for this additional information to be created. For example, if the author makes use of a font + that contains OpenType GSUB and/or GPOS tables, then those tables will be automatically used + unless complex scripts features are disabled. +

+ Changes to your XSL-FO input files +

+ In most circumstances, XSL-FO content does not need to change in order to make use of + complex scripts features; however, in certain contexts, fully automatic processing is not + sufficient. In these cases, an author may make use of the following XSL-FO constructs: +

The script property.
The language property.
The writing-mode property.
The number to string conversion properties: + format, + grouping-separator, + grouping-size, + letter-value, + and fox:number-conversion-features.
The fo:bidi-override element.
Explicit bidirectional control characters: U+200E LRM, U+200F RLM, U+202A LRE, + U+202B RLE, U+202C PDF, U+202D LRO, U+202E RLO.
Explicit join control characters: U+200C ZWNJ and U+200D ZWJ.

+ Authoring Details +

The complex scripts related effects of the above enumerated XSL-FO constructs are more + fully described in the following sub-sections.

+ Script Property +

In order to apply font specific complex script features, it is necessary to know + the script that applies to the text undergoing layout processing. This script is determined + using the following algorithm: +

If the FO element that governs the text specifies a + script + property and its value is not the empty string or "auto", then that script is used.
Otherwise, the dominant script of the text is determined automatically by finding the + script whose constituent characters appear most frequently in the text.

In case the automatic algorithm does not produce the desired results, an author may + explicitly specify a script property with the desired script. If specified, + it must be one of the four-letter script code specified in + ISO 15924 Code List or + in the Extended Script Codes table. Comparison + of script codes is performed in a case-insensitive manner, so it does not matter what case + is used when specifying these codes in an XSL-FO document.

+ Standard Script Codes +

The following table enumerates the standard ISO 15924 4-letter codes recognized by FOP.

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Code	Script
`arab`	Arabic
`beng`	Bengali
`bopo`	Bopomofo
`cyrl`	Cyrillic
`deva`	Devanagari
`ethi`	Ethiopic
`geor`	Georgian
`grek`	Greek
`gujr`	Gujarati
`guru`	Gurmukhi
`hang`	Hangul
`hani`	Han
`hebr`	Hebrew
`hira`	Hiragana
`kana`	Katakana
`knda`	Kannada
`khmr`	Khmer
`laoo`	Lao
`latn`	Latin
`mlym`	Malayalam
`mymr`	Burmese
`mong`	Mongolian
`orya`	Oriya
`sinh`	Sinhalese
`taml`	Tamil
`telu`	Telugu
`thai`	Thai
`tibt`	Tibetan
`zmth`	Math
`zsym`	Symbol
`zyyy`	Undetermined
`zzzz`	Uncoded

+ Extended Script Codes +

The following table enumerates a number of non-standard extended script codes recognized by FOP.

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Code	Script	Comments
`bng2`	Bengali	OpenType Indic Version 2 (May 2008 and following) behavior.
`dev2`	Devanagari	OpenType Indic Version 2 (May 2008 and following) behavior.
`gur2`	Gurmukhi	OpenType Indic Version 2 (May 2008 and following) behavior.
`gjr2`	Gujarati	OpenType Indic Version 2 (May 2008 and following) behavior.
`knd2`	Kannada	OpenType Indic Version 2 (May 2008 and following) behavior.
`mlm2`	Malayalam	OpenType Indic Version 2 (May 2008 and following) behavior.
`ory2`	Oriya	OpenType Indic Version 2 (May 2008 and following) behavior.
`tml2`	Tamil	OpenType Indic Version 2 (May 2008 and following) behavior.
`tel2`	Telugu	OpenType Indic Version 2 (May 2008 and following) behavior.

+ + Explicit use of one of the above extended script codes is not portable, + and should be limited to use with FOP only. + + + When performing automatic script determination, FOP selects the OpenType Indic + Version 2 script codes by default. If the author requires Version 1 behavior, then + an explicit, non-extension script code should be specified in a governing script + property. + +

+ Language Property +

Certain fonts that support complex script features can make use of language information in order for + language specific processing rules to be applied. For example, a font designed for the Arabic script may support + typographic variations according to whether the written language is Arabic, Farsi (Persian), Sindhi, Urdu, or + another language written with the Arabic script. In order to apply these language specific features, the author + may explicitly mark the text with a language + property.

When specifying the language property, the value of the property must be either an + ISO639-2 3-letter code or an + ISO639-1 2-letter code. Comparison of language + codes is performed in a case-insensitive manner, so it does not matter what case is used when specifying these + codes in an XSL-FO document.

+ Writing Mode Property +

The writing-mode property is used to determine the axes and direction of the inline + progression direction, the block progression direction, the column progression direction (in tables + and flows), the shift direction, region placement, the resolution of writing-mode relative property + values (such as start, end, before, after), and the default block (paragraph) bidirectionality + level. +

The writing-mode property is inherited, so it can appear on any XSL-FO element type; however, + it applies (semantically) only to the following element types: +

fo:page-sequence
fo:simple-page-master
fo:region-*
fo:block-container
fo:inline-container
fo:table

If it is not specified on one of these element types, but is specified on an ancestor element, then the value specified on that + ancestor element (the inherited value) is used; otherwise, the initial value lr-tb is used.

At present, only the following values of the writing-mode property are supported:

lr-tb
rl-tb
lr
rl

Writing modes that employ a vertical inline progression direction are not yet supported.

+ +

+ Bidi Override Element +

The fo:bidi-override + element may be used to override default bidirectional processing behavior, + including default embedding levels and default character directionality. In the absence of either this element + or use of explicit Bidi Control Characters, the default behavior prescribed + by the Unicode Bidirectional Algorithm + applies. +

+ Bidi Control Characters +

In addition to the use of the Bidi Override Element, an author + may make use of the following explicit Unicode Bidi Control Characters:

U+200E - LEFT-TO-RIGHT MARK (LRM)
U+200F - RIGHT-TO-LEFT MARK (RLM)
U+202A - LEFT-TO-RIGHT EMBEDDING (LRE)
U+202B - RIGHT-TO-LEFT EMBEDDING (RLE)
U+202C - POP DIRECTIONAL FORMATTING (PDF)
U+202D - LEFT-TO-RIGHT OVERRIDE (LRO)
U+202E - RIGHT-TO-LEFT OVERRIDE (RLO)

If an embedding or override is not terminated (using U+202C PDF) prior to the end of a + delimited text range, + then it is automatically terminated by FOP. +

+ Join Control Characters +

In order to prevent joining behavior in contexts where joining occurs by default, + for example, between U+0628 ARABIC LETTER BEH and U+0646 ARABIC LETTER NOON, + an author may used a U+200C ZERO WIDTH NON-JOINER (ZWNJ). +

Conversely, in order to force joining behavior in contexts where joining does not occur by default, + for example, between U+0628 ARABIC LETTER BEH and U+0020 SPACE, an author may used a U+200D ZERO WIDTH JOINER (ZWJ). +

The behavior of ZWNJ and ZWJ is script specific. See + The Unicode Standard, Chapter 8, + Middle Eastern Scripts for information on the use of these control characters with the Arabic + script. See + The Unicode Standard, Chapter 9, + South Asian Scripts - I for information on the use of these control characters with common + Indic scripts. +

+ Supported Scripts +

Support for specific complex scripts is enumerated in the following table. Support + for those marked as not being supported is expected to be added in future revisions.

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Script	Support	Tested	Comments
Arabic	full	full
Bengali	none	none
Burmese	none	none
Devanagari	partial	partial	join controls (ZWJ, ZWNJ) not yet supported
Khmer	none	none
Gujarati	partial	none	pre-alpha
Gurmukhi	partial	none	pre-alpha
Hebrew	full	partial
Kannada	none	none
Lao	none	none
Malayalam	none	none
Mongolian	none	none
Oriya	none	none
Tamil	none	none
Telugu	none	none
Tibetan	none	none
Thai	none	none

+ Supported Fonts +

Support for specific fonts is enumerated in the following sub-sections. If a given + font is not listed, then it has not been tested with these complex scripts features.

+ Arabic Fonts + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Font	Version	Glyphs	Comments
Arial Unicode MS	1.01	50377	limited GPOS support
Lateef	1.0	1147	language features for Kurdish (KUR), Sindhi (SND), Urdu (URD)
Scheherazade	1.0	1197	language features for Kurdish (KUR), Sindhi (SND), Urdu (URD)
Simplified Arabic	1.01	+	contains invalid, out of order coverage table entries
Simplified Arabic	5.00	414	lacks GPOS support
Simplified Arabic	5.92	473	includes GPOS for advanced position adjustment
Traditional Arabic	1.01	530	lacks GPOS support
Traditional Arabic	5.00	530	lacks GPOS support
Traditional Arabic	5.92	589	includes GPOS for advanced position adjustment

+ Devanagari Fonts + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Font	Version	Glyphs	Comments
Aparajita	1.00	706	+
Kokila	1.00	706	+
Mangal	5.01	885	designed for use in user interfaces
Utsaah	1.00	706	+

+ Other Limitations +

+ Complex scripts support in Apache FOP is relatively new, so there are certain + limitations. Please help us identify and close any gaps. +

Only the PDF output format fully supports complex scripts features at the present time.
Shaping context does not extend across an element boundary. This limitation prevents the use of + fo:character, fo:inline or fo:wrapper in order to colorize + individual Arabic letters without affecting shaping behavior across the element boundary.

+ Related Links +

+ In addition to the XSL-FO specification, a number of external resources provide + guidance about authoring documents that employ complex scripts and the features + described above: +

The Unicode Standard
Unicode Bidirectional Algorithm
OpenType Advanced Typographic Extensions
Examples of Complex Rendering

+ + diff --git a/src/documentation/content/xdocs/1.1rc1/configuration.xml b/src/documentation/content/xdocs/1.1rc1/configuration.xml new file mode 100644 index 000000000..b30a091a5 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/configuration.xml @@ -0,0 +1,541 @@ + + + + + +

+ Apache™ FOP: Configuration + $Revision$ +

+ + +

+ Configuration File Basics +

+ The Apache™ FOP configuration file is an XML file containing a variety of settings that are useful + for controlling FOP's behavior, and for helping it find resources that you wish it to use. +

+ The easiest way to get started using a FOP configuration file is to copy the sample found + at {fop-dir}/conf/fop.xconf to a location of your choice, and then to + edit it according to your needs. + It contains templates for the various configuration options, most of which are commented + out. Remove the comments and change the settings for entries that you wish to use. + Be sure to follow any instructions, including comments which specify the value range. + Also, since the configuration file is XML, be sure to keep it well-formed. +

+ Making Configuration Available to FOP +

After creating your configuration file, you must tell FOP how to find it:

+ If running FOP from the command-line, see the "-c" command-line option in + Running FOP. +
+ If running FOP as an embedded application, see + Embedding, Using a Configuration File. +

+ See Setting the Configuration Programmatically + for instructions on how to do so in an embedded environment. +

+ Summary of the General Configuration Options + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Element	Data Type (for the value)	Description	Default Value
base	URL or directory	Specifies the base URL based on which relative URL will be resolved.	current directory
font-base	URL or directory	Specifies the base URL based on which relative font URLs will be resolved. +	base URL/directory (above)
hyphenation-base	URL or directory	Specifies the base URL based on which relative URLs to hyphenation pattern + files will be resolved. If not specified, support for user-supplied hyphenation + patterns remains disabled. +	disabled
Relative URIs for the above three properties are evaluated relative to the base URI of the configuration file. If the configuration is provided programmatically, the base URI can be set with `FopFactory.setUserConfigBaseURI`; default is the current working directory.
hyphenation-pattern	String, attribute lang, attribute country (optional)	Register a file name for the hyphenation pattern for the mentioned language and country. Language ll and country CC must both consist of two letters.	ll_CC
source-resolution	Integer, dpi	+ Resolution in dpi (dots per inch) which is used internally to determine the pixel + size for SVG images and bitmap images without resolution information. +	72 dpi
target-resolution	Integer, dpi	+ Resolution in dpi (dots per inch) used to specify the output resolution for bitmap + images generated by bitmap renderers (such as the TIFF renderer) and by bitmaps + generated by Apache Batik for filter effects and such. +	72 dpi
strict-configuration	Boolean (true, false)	+ Setting this option to 'true' will cause FOP to strictly verify the contents of the + FOP configuration file to ensure that defined resources (such as fonts and base + URLs/directories) are valid and available to FOP. Any errors found will cause FOP to + immediately raise an exception.	false
strict-validation	Boolean (true, false)	+ Setting this option to 'false' causes FOP to be more forgiving about XSL-FO validity, + for example, you're allowed to specify a border on a region-body which is supported + by some FO implementations but is non-standard. Note that such a border would + currently have no effect in Apache FOP.	true
break-indent-inheritance	Boolean (true, false)	+ Setting this option to 'true' causes FOP to use an alternative rule set to determine + text indents specified through margins, start-indent and end-indent. Many commercial + FO implementations have chosen to break the XSL specification in this aspect. This + option tries to mimic their behaviour. Please note that Apache FOP may still not + behave exactly like those implementations either because FOP has not fully matched + the desired behaviour and because the behaviour among the commercial implementations + varies. The default for this option (i.e. false) is to behave exactly like the + specification describes.	false
complex-scripts	attribute disabled (optional)	+ If present and if an attribute 'disabled' is specified with the value 'false', then + complex script features are disabled. The same result can be obtained on an FOP + per-invocation basis by specifying a '-nocs' command line option when invoking FOP. + When complex script features are disabled, all bidirectional processing and complex + character to glyph mapping processing is disabled; in addition, the loading of + GDEF, GSUB, and GPOS advanced typographic tables is disabled for OpenType and + TrueType fonts. Unless disabled by this mechanism or by use of the '-nocs' command + line option, complex script features will be enabled by default. +	n/a
default-page-settings	n/a	+ Specifies the default width and height of a page if "auto" is specified + for either or both values. Use "height" and "width" attributes on the + default-page-settings element to specify the two values.	"height" 11 inches, "width" 8.26 inches
use-cache	boolean (true, false)	All fonts information that has been gathered as a result of "directory" + or "auto-detect" font configurations will be cached for future rendering runs. + This setting should improve performance on systems where + fonts have been configured using the "directory" or "auto-detect" tag mechanisms. + By default this option is switched on.	true
cache-file	String	This option specifies the file/directory path of the fop cache file. + This file is currently only used to cache font triplet information for future reference.	${base}/conf/fop.cache
renderers	(see text below)	Contains the configuration for each renderer. See below.	N/A

+ This is an excerpt from the example configuration file coming with FOP: +

+ + + + true + + + true + + + ./ + + + ./ + + + 72 + + 72 + + + + + + nl_Bel + + +]]> +

+ Image Loading Customization +

+ Apache FOP uses the image loading framework from + Apache XML Graphics Commons to load + images using various plug-ins. Every image loader plug-in has a hard-coded usage penalty + that influences which solution is chosen if there are multiple possibilities to load an image. + Sometimes, though, these penalties need to be tweaked and this can be done in the FOP + configuration. An example: +

+ + [..] + + + + + ]]> +

+ The first penalty element increases the penalty for the raw CCITT loader. This practically + forces the decoding of CCITT compressed TIFF images except if there are no TIFF codecs + available. +

+ The second penalty element sets an "infinite" penalty for the TIFF loader using the internal + TIFF codec. This practically disables that plug-in as it will never be chosen as a possible + solution. +

+ Negative penalties are possible to promote a plug-in but a negative penalty sum will be + treated as zero penalty in most cases. For more details on the image loading framework, + please consult the documentation there. +

+ Renderer configuration +

+ Each Renderer has its own configuration section which is identified by the + MIME type the Renderer is written for, ex. "application/pdf" for the PDF Renderer. +

+ The configuration for the PDF Renderer could look like this: +

+ + + + + flate + + + + + + + + + + + + + + + ]]> +

+ The details on the font configuration can be found on the separate Fonts page. + Note especially the section entitled Register Fonts with FOP. +

+ Special Settings for the PDF Renderer +

+ The configuration element for the PDF renderer contains two elements. One is for the font configuration + (please follow the link above) and one is for the "filter list". The filter list controls how the + individual objects in a PDF file are encoded. By default, all objects get "flate" encoded (i.e. simply + compressed with the same algorithm that is also used in ZIP files). Most users don't need to change that + setting. For debugging purposes, it may be desired not to compress the internal objects at all so the + generated PDF commands can be read. In that case, you can simply use the following filter list. The + second filter list (type="image") ensures that all images still get compressed but also ASCII-85 encoded + so the produced PDF file is still easily readable in a text editor. +

+ + + null + + + flate + ascii-85 + + + ]]> +

+ Another (optional) setting specific to the PDF Renderer is an output color profile, an ICC + color profile which indicates the target color space the PDF file is generated for. This + setting is mainly used in conjunction with the PDF/X feature. + An example: +

+ + C:\FOP\Color\EuropeISOCoatedFOGRA27.icc + + ]]> +

+ Some people don't have high requirements on color fidelity but instead want the smallest + PDF file sizes possible. In this case it's possible to disable the default sRGB color space + which XSL-FO requires. This will cause RGB colors to be generated as device-specific RGB. + Please note that this option is unavailable (and will cause an error) if you enable + PDF/A or PDF/X functionality or if you specify an output profile. This setting will make the + PDF about 4KB smaller. To disable the sRGB color space add the following setting: +

+ + true + + ]]> + +

FOP supports encryption of PDF output, thanks to Patrick C. Lankswert. + This feature is commonly used to prevent unauthorized viewing, printing, editing, copying text + from the document and doing annotations. It is also possible to ask the user for a password in + order to view the contents. Note that there already exist third party applications which can + decrypt an encrypted PDF without effort and allow the aforementioned operations, therefore the + degree of protection is limited. For further information about features and restrictions + regarding PDF encryption, look at the documentation coming with Adobe Acrobat or the technical + documentation on the Adobe web site.

+ + + 128 + testuserpass + testownerpass + + + + + + + + + + ]]> +

+ By default FOP produces PDF files of version 1.4, but this can be changed in order to benefit + from features that appeared in newer versions of PDF. At the moment, only a few features from + PDF 1.5 have been implemented, but the configuration element will accept any value between + 1.4 and 1.7. This is the value that will appear in the PDF header, although only features up + to 1.5 will actually be used. + + 1.5 + + ]]> +

+ +

+ Special Settings for the PostScript Renderer +

+ Besides the normal font configuration (the same "fonts" element as for the PDF renderer) the PostScript + renderer has an additional setting to force landscape pages to be rotated to fit on a page inserted into + the printer in portrait mode. Set the value to "true" to activate this feature. The default is "false". + Example: +

+ + true + + + + + + + + + + + + ]]> +

+ Special Settings for the PCL Renderer +

+ Non-standard fonts for the PCL renderer are made available through the Java2D subsystem which means that + you don't have to do any custom font configuration in this case but you have to use the font names + offered by Java. +

+ Additionally, there are certain settings that control how the renderer handles various elements. +

+ + quality + bitmap +]]> +

+ The default value for the "rendering" setting is "speed" which causes borders + to be painted as plain rectangles. In this mode, no special borders (dotted, + dashed etc.) are available. If you want support for all border modes, set the + value to "quality" as indicated above. This will cause the borders to be painted + as bitmaps. +

+ The default value for the "text-rendering" setting is "auto" which paints the + base fonts using PCL fonts. Non-base fonts are painted as bitmaps through Java2D. + If the mix of painting methods results in unwelcome output, you can set this + to "bitmap" which causes all text to be rendered as bitmaps. +

+ Special Settings for the AFP Renderer +

+ Additionally, there are certain settings that control how the renderer handles various elements. +

+ + + 240 + 2.5 + + + resources.afp +]]> +

+ The default value for the images "mode" setting is "b+w" (black and white). When the images "mode" setting is "b+w" a "bits-per-pixel" setting can be provided to aid the grayscale conversion process. With this setting all images referenced in your source document are converted to an IOCA FS45 grayscale bitmap image form. + When the setting is "color" all images are converted to an IOCA FS45 color bitmap image form. When "native" setting is "true", all images encountered (TIFF, GIF, JPEG and Encapsulated Postscript etc.) will be embedded directly in the datastream in their native form using a MO:DCA Object Container. +

+ The default value for the "renderer-resolution" is 240 dpi. +

+ The default line width is device dependent and may need to be fine tuned so that the output matches the expected result. The default correction value is 2.5. +

+ +

+ By default if there is no configuration definition for "resource-group-file", external resources will be placed in a file called resources.afp. +

+ +

+ When it does not work + +

FOP searches the configuration file for the information it +expects, at the position it expects. When that information is not +present, FOP will not complain, it will just continue. When there is +other information in the file, FOP will not complain, it will just +ignore it. That means that when your configuration information is in +the file but in a different XML element, or in a different XML path, +than FOP expects, it will be silently ignored.

+ +

Check the following possibilities:

+ +

The format of the configuration file has changed +considerably between FOP 0.20.5 and FOP 1.0 and its beta versions. Did +you convert your file to the new format?
The FOP distribution contains a schema for configuration +files, at src/foschema/fop-configuration.xsd. Did you validate your +configuration file against it? Add the following schema location to +the schema element: + +]]> + + +and run the configuration file through a validating schema +parser. Note that the schema cannot detect all errors, and that it is +stricter about the order of some elements than FOP itself is.
Run FOP in debug mode (command line option +-d). This makes FOP report which configuration +information it finds. Check if FOP finds what you expect.

+ +

+ + diff --git a/src/documentation/content/xdocs/1.1rc1/embedding.xml b/src/documentation/content/xdocs/1.1rc1/embedding.xml new file mode 100644 index 000000000..24c74f970 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/embedding.xml @@ -0,0 +1,752 @@ + + + + + + +

+ Apache™ FOP: Embedding + How to Embed FOP in a Java application + $Revision$ +

+ + +

+ Overview +

+ Review Running Apache™ FOP for important information that applies + to embedded applications as well as command-line use, such as options and performance. +

+ To embed Apache™ FOP in your application, first create a new + org.apache.fop.apps.FopFactory instance. This object can be used to launch multiple + rendering runs. For each run, create a new org.apache.fop.apps.Fop instance through + one of the factory methods of FopFactory. In the method call you specify which output + format (i.e. MIME type) to use and, if the selected output format requires an + OutputStream, which OutputStream to use for the results of the rendering. You can + customize FOP's behaviour in a rendering run by supplying your own FOUserAgent + instance. The FOUserAgent can, for example, be used to set your own document handler + instance (details below). Finally, you retrieve a SAX DefaultHandler instance from + the Fop object and use that as the SAXResult of your transformation. +

+ The API +

+ FOP has many classes which express the "public" access modifier, however, this is not + indicative of their inclusion into the public API. Every attempt will be made to keep the + public API static, to minimize regressions for existing users, however, since the API is not + clearly defined, the list of classes below are the generally agreed public API: + +

+ Basic Usage Pattern +

+ Apache FOP relies heavily on JAXP. It uses SAX events exclusively to receive the XSL-FO + input document. It is therefore a good idea that you know a few things about JAXP (which + is a good skill anyway). Let's look at the basic usage pattern for FOP... +

Here is the basic pattern to render an XSL-FO file to PDF: +

+ +

+ Let's discuss these 5 steps in detail: +

+ Step 1: You create a new FopFactory instance. The FopFactory instance holds + references to configuration information and cached data. It's important to reuse this + instance if you plan to render multiple documents during a JVM's lifetime. +
+ Step 2: You set up an OutputStream that the generated document + will be written to. It's a good idea to buffer the OutputStream as demonstrated + to improve performance. +
+ Step 3: You create a new Fop instance through one of the factory + methods on the FopFactory. You tell the FopFactory what your desired output format + is. This is done by using the MIME type of the desired output format (ex. "application/pdf"). + You can use one of the MimeConstants.* constants. The second parameter is the + OutputStream you've setup up in step 2. +
+ Step 4 We recommend that you use JAXP Transformers even + if you don't do XSLT transformations to generate the XSL-FO file. This way + you can always use the same basic pattern. The example here sets up an + "identity transformer" which just passes the input (Source) unchanged to the + output (Result). You don't have to work with a SAXParser if you don't do any + XSLT transformations. +
+ Step 5: Here you set up the input and output for the XSLT + transformation. The Source object is set up to load the "myfile.fo" file. + The Result is set up so the output of the XSLT transformation is sent to FOP. + The FO file is sent to FOP in the form of SAX events which is the most efficient + way. Please always avoid saving intermediate results to a file or a memory buffer + because that affects performance negatively. +
+ Step 6: Finally, we start the XSLT transformation by starting + the JAXP Transformer. As soon as the JAXP Transformer starts to send its output + to FOP, FOP itself starts its processing in the background. When the + transform() method returns FOP will also have finished converting + the FO file to a PDF file and you can close the OutputStream. + + It's a good idea to enclose the whole conversion in a try..finally statement. If + you close the OutputStream in the finally section, this will make sure that the + OutputStream is properly closed even if an exception occurs during the conversion. + +

+ If you're not totally familiar with JAXP Transformers, please have a look at the + Embedding examples below. The section contains examples + for all sorts of use cases. If you look at all of them in turn you should be able + to see the patterns in use and the flexibility this approach offers without adding + too much complexity. +

+ This may look complicated at first, but it's really just the combination of an + XSL transformation and a FOP run. It's also easy to comment out the FOP part + for debugging purposes, for example when you're tracking down a bug in your + stylesheet. You can easily write the XSL-FO output from the XSL transformation + to a file to check if that part generates the expected output. An example for that + can be found in the Embedding examples (See "ExampleXML2FO"). +

+ Logging +

+ Logging is now a little different than it was in FOP 0.20.5. We've switched from + Avalon Logging to Jakarta Commons Logging. + While with Avalon Logging the loggers were directly given to FOP, FOP now retrieves + its logger(s) through a statically available LogFactory. This is similar to the + general pattern that you use when you work with Apache Log4J directly, for example. + We call this "static logging" (Commons Logging, Log4J) as opposed to "instance logging" + (Avalon Logging). This has a consequence: You can't give FOP a logger for each + processing run anymore. The log output of multiple, simultaneously running FOP instances + is sent to the same logger. +

+ By default, Jakarta Commons Logging uses + JDK logging (available in JDKs 1.4 or higher) as its backend. You can configure Commons + Logging to use an alternative backend, for example Log4J. Please consult the + documentation for Jakarta Commons Logging on + how to configure alternative backends. +

+ As a result of the above we differentiate between two kinds of "logging": +

(FOP-)Developer-oriented logging
User/Integrator-oriented feedback (NEW!)

+ The use of "feedback" instead of "logging" is intentional. Most people were using + log output as a means to get feedback from events within FOP. Therefore, FOP now + includes an event package which can be used to receive feedback from + the layout engine and other components within FOP per rendering run. + This feedback is not just some + text but event objects with parameters so these events can be interpreted by code. + Of course, there is a facility to turn these events into normal human-readable + messages. For details, please read on on the Events page. + This leaves normal logging to be mostly a thing used by the FOP developers + although anyone can surely activate certain logging categories but the feedback + from the loggers won't be separated by processing runs. If this is required, + the Events subsystem is the right approach. +

+ +

+ Processing XSL-FO +

+ Once the Fop instance is set up, call getDefaultHandler() to obtain a SAX + DefaultHandler instance to which you can send the SAX events making up the XSL-FO + document you'd like to render. FOP processing starts as soon as the DefaultHandler's + startDocument() method is called. Processing stops again when the + DefaultHandler's endDocument() method is called. Please refer to the basic + usage pattern shown above to render a simple XSL-FO document. +

+ +

+ Processing XSL-FO generated from XML+XSLT +

+ If you want to process XSL-FO generated from XML using XSLT we recommend + again using standard JAXP to do the XSLT part and piping the generated SAX + events directly through to FOP. The only thing you'd change to do that + on the basic usage pattern above is to set up the Transformer differently: +

+ +

+ Input Sources +

+ The input XSL-FO document is always received by FOP as a SAX stream (see the + Parsing Design Document for the rationale). +

+ However, you may not always have your input document available as a SAX stream. + But with JAXP it's easy to convert different input sources to a SAX stream so you + can pipe it into FOP. That sounds more difficult than it is. You simply have + to set up the right Source instance as input for the JAXP transformation. + A few examples: +

+ URL: Source src = new StreamSource("http://localhost:8080/testfile.xml"); +
+ File: Source src = new StreamSource(new File("C:/Temp/myinputfile.xml")); +
+ String: Source src = new StreamSource(new StringReader(myString)); // myString is a String +
+ InputStream: Source src = new StreamSource(new MyInputStream(something)); +
+ Byte Array: Source src = new StreamSource(new ByteArrayInputStream(myBuffer)); // myBuffer is a byte[] here +
+ DOM: Source src = new DOMSource(myDocument); // myDocument is a Document or a Node +
+ Java Objects: Please have a look at the Embedding examples which contain an example for this. +

+ There are a variety of upstream data manipulations possible. + For example, you may have a DOM and an XSL stylesheet; or you may want to + set variables in the stylesheet. Interface documentation and some cookbook + solutions to these situations are provided in + Xalan Basic Usage Patterns. +

+ Configuring Apache FOP Programmatically +

+ Apache FOP provides two levels on which you can customize FOP's + behaviour: the FopFactory and the user agent. +

+ Customizing the FopFactory +

+ The FopFactory holds configuration data and references to objects which are reusable over + multiple rendering runs. It's important to instantiate it only once (except in special + environments) and reuse it every time to create new FOUserAgent and Fop instances. +

+ You can set all sorts of things on the FopFactory: +

+
+ The font base URL to use when resolving relative URLs for fonts. Example: +
+ fopFactory.getFontManager().setFontBaseURL("file:///C:/Temp/fonts"); +
+
+ The hyphenation base URL to use when resolving relative URLs for + hyphenation patterns. Example: +
+ fopFactory.setHyphenBaseURL("file:///C:/Temp/hyph"); +
+
+ Disable strict validation. When disabled FOP is less strict about the rules + established by the XSL-FO specification. Example: +
+ fopFactory.setStrictValidation(false); +
+
+ Enable an alternative set of rules for text indents that tries to mimic the behaviour of many commercial + FO implementations, that chose to break the specification in this respect. The default of this option is + 'false', which causes Apache FOP to behave exactly as described in the specification. To enable the + alternative behaviour, call: +
+ fopFactory.setBreakIndentInheritanceOnReferenceAreaBoundary(true); +
+
+ Set the source resolution for the document. This is used internally to determine the pixel + size for SVG images and bitmap images without resolution information. Default: 72 dpi. Example: +
+ fopFactory.setSourceResolution(96); // =96dpi (dots/pixels per Inch) +
+
+ Manually add an ElementMapping instance. If you want to supply a special FOP extension + you can give the instance to the FOUserAgent. Normally, the FOP extensions can be automatically detected + (see the documentation on extension for more info). Example: +
+ fopFactory.addElementMapping(myElementMapping); // myElementMapping is a org.apache.fop.fo.ElementMapping +
+
+ Set a URIResolver for custom URI resolution. By supplying a JAXP URIResolver you can add + custom URI resolution functionality to FOP. For example, you can use + Apache XML Commons Resolver to make use of XCatalogs. Example: +
+ fopFactory.setURIResolver(myResolver); // myResolver is a javax.xml.transform.URIResolver + + Both the FopFactory and the FOUserAgent have a method to set a URIResolver. The URIResolver on the FopFactory + is primarily used to resolve URIs on factory-level (hyphenation patterns, for example) and it is always used + if no other URIResolver (for example on the FOUserAgent) resolved the URI first. + +

+ Customizing the User Agent +

+ The user agent is the entity that allows you to interact with a single rendering run, i.e. the processing of a single + document. If you wish to customize the user agent's behaviour, the first step is to create your own instance + of FOUserAgent using the appropriate factory method on FopFactory and pass that + to the factory method that will create a new Fop instance: +

+ +

+ You can do all sorts of things on the user agent: +

+
+ The base URL to use when resolving relative URLs. Example: +
+ userAgent.setBaseURL("file:///C:/Temp/"); +
+
+ Set the producer of the document. This is metadata information that can be used for certain output formats such as PDF. The default producer is "Apache FOP". Example: +
+ userAgent.setProducer("MyKillerApplication"); +
+
+ Set the creating user of the document. This is metadata information that can be used for certain output formats such as PDF. Example: +
+ userAgent.setCreator("John Doe"); +
+
+ Set the author of the document. This is metadata information that can be used for certain output formats such as PDF. Example: +
+ userAgent.setAuthor("John Doe"); +
+
+ Override the creation date and time of the document. This is metadata information that can be used for certain output formats such as PDF. Example: +
+ userAgent.setCreationDate(new Date()); +
+
+ Set the title of the document. This is metadata information that can be used for certain output formats such as PDF. Example: +
+ userAgent.setTitle("Invoice No 138716847"); +
+
+ Set the keywords of the document. This is metadata information that can be used for certain output formats such as PDF. Example: +
+ userAgent.setKeywords("XML XSL-FO"); +
+
+ Set the target resolution for the document. This is used to + specify the output resolution for bitmap images generated by bitmap renderers + (such as the TIFF renderer) and by bitmaps generated by Apache Batik for filter + effects and such. Default: 72 dpi. Example: +
+ userAgent.setTargetResolution(300); // =300dpi (dots/pixels per Inch) +
+
+ Set your own Document Handler. This feature can be used for several purposes, the most likey usage of which would probably be + binding a MIME type when the output is Intermediate Format (see Document Handlers). This also allows advanced + users to create their own implementation of the document handler. +
+ userAgent.setDocumentHandlerOverride(documentHandler) // documentHandler is an instance of org.apache.fop.render.intermediate.IFDocumentHandler +
+
+ Set your own FOEventHandler instance. If you want to supply your own FOEventHandler or + configure an FOEventHandler subclass in a special way you can give the instance to the FOUserAgent. Normally, + the FOEventHandler instance is created by FOP. Example: +
+ userAgent.setFOEventHandlerOverride(myFOEventHandler); // myFOEventHandler is an org.apache.fop.fo.FOEventHandler +
+
+ Set a URIResolver for custom URI resolution. By supplying a JAXP URIResolver you can add + custom URI resolution functionality to FOP. For example, you can use + Apache XML Commons Resolver to make use of XCatalogs. Example: +
+ userAgent.setURIResolver(myResolver); // myResolver is a javax.xml.transform.URIResolver + + Both the FopFactory and the FOUserAgent have a method to set a URIResolver. The URIResolver on the FOUserAgent is + used for resolving URIs which are document-related. If it's not set or cannot resolve a URI, the URIResolver + from the FopFactory is used. + +

+ + You should not reuse an FOUserAgent instance between FOP rendering runs although you can. Especially + in multi-threaded environment, this is a bad idea. + +

+ Using a Configuration File +

+ Instead of setting the parameters manually in code as shown above you can also set + many values from an XML configuration file: +

+ +

+ The layout of the configuration file is described on the Configuration page. +

+ Document Handlers +

+ The document handlers are classes that inherit from org.apache.fop.render.intermediate.IFDocumentHandler. This + is an interface for which a MIME type specific implementation can be created. This same handler is used either when XSL-FO + is used as the input or when Intermediate Format is used. Since IF is output format agnostic, if custom fonts or other + configuration information that affect layout (specific to a particular MIME type) are given then FOP needs that contextual + information. The document handler provides that context so that when the IF is rendered, it is more visually consistent with + FO rendering. The code below shows an example of how a document handler can be used to provide PDF configuration data to the + IFSerializer. + + The rest of the code is the same as in Basic Usage Patterns. +

+ Hints +

+ Object reuse +

+ Fop instances shouldn't (and can't) be reused. Please recreate + Fop and FOUserAgent instances for each rendering run using the FopFactory. + This is a cheap operation as all reusable information is held in the + FopFactory. That's why it's so important to reuse the FopFactory instance. +

+ AWT issues +

+ If your XSL-FO files contain SVG then Apache Batik will be used. When Batik is + initialised it uses certain classes in java.awt that + intialise the Java AWT classes. This means that a daemon thread + is created by the JVM and on Unix it will need to connect to a + DISPLAY. +

+ The thread means that the Java application may not automatically quit + when finished, you will need to call System.exit(). These + issues should be fixed in the JDK 1.4. +

+ If you run into trouble running FOP on a head-less server, please see the + notes on Batik. +

+ Getting information on the rendering process +

+ To get the number of pages that were rendered by FOP you can call + Fop.getResults(). This returns a FormattingResults object + where you can look up the number of pages produced. It also gives you the + page-sequences that were produced along with their id attribute and their + numbers of pages. This is particularly useful if you render multiple + documents (each enclosed by a page-sequence) and have to know the number of + pages of each document. +

+ Improving performance +

+ There are several options to consider: +

+ Whenever possible, try to use SAX to couple the individual components involved + (parser, XSL transformer, SQL datasource etc.). +
+ Depending on the target OutputStream (in case of a FileOutputStream, but not + for a ByteArrayOutputStream, for example) it may improve performance considerably + if you buffer the OutputStream using a BufferedOutputStream: + out = new java.io.BufferedOutputStream(out); +
+ Make sure you properly close the OutputStream when FOP is finished. +
+ Cache the stylesheet. If you use the same stylesheet multiple times + you can set up a JAXP Templates object and reuse it each time you do + the XSL transformation. (More information can be found + here.) +
+ Use an XSLT compiler like XSLTC + that comes with Xalan-J. +
+ Fine-tune your stylesheet to make the XSLT process more efficient and to create XSL-FO that can + be processed by FOP more efficiently. Less is more: Try to make use of property inheritance where possible. +
+ You may also wish to consider trying to reduce memory usage. +

+ Multithreading FOP +

+ Apache FOP may currently not be completely thread safe. + The code has not been fully tested for multi-threading issues, yet. + If you encounter any suspicious behaviour, please notify us. +

+ There is also a known issue with fonts being jumbled between threads when using + the Java2D/AWT renderer (which is used by the -awt and -print output options). + In general, you cannot safely run multiple threads through the AWT renderer. +

+ Examples +

+ The directory "{fop-dir}/examples/embedding" contains several working examples. +

+ ExampleFO2PDF.java +

This + + example +demonstrates the basic usage pattern to transform an XSL-FO +file to PDF using FOP. +

+ ExampleXML2FO.java +

This + + example +has nothing to do with FOP. It is there to show you how an XML +file can be converted to XSL-FO using XSLT. The JAXP API is used to do the +transformation. Make sure you've got a JAXP-compliant XSLT processor in your +classpath (ex. Xalan). +

+ ExampleXML2PDF.java +

This + + example +demonstrates how you can convert an arbitrary XML file to PDF +using XSLT and XSL-FO/FOP. It is a combination of the first two examples +above. The example uses JAXP to transform the XML file to XSL-FO and FOP to +transform the XSL-FO to PDF. +

+The output (XSL-FO) from the XSL transformation is piped through to FOP using +SAX events. This is the most efficient way to do this because the +intermediate result doesn't have to be saved somewhere. Often, novice users +save the intermediate result in a file, a byte array or a DOM tree. We +strongly discourage you to do this if it isn't absolutely necessary. The +performance is significantly higher with SAX. +

+ ExampleObj2XML.java +

This + + example +is a preparatory example for the next one. It's an example that +shows how an arbitrary Java object can be converted to XML. It's an often +needed task to do this. Often people create a DOM tree from a Java object and +use that. This is pretty straightforward. The example here, however, shows how +to do this using SAX, which will probably be faster and not even more +complicated once you know how this works. +

+For this example we've created two classes: ProjectTeam and ProjectMember +(found in xml-fop/examples/embedding/java/embedding/model). They represent +the same data structure found in +xml-fop/examples/embedding/xml/xml/projectteam.xml. We want to serialize to XML a +project team with several members which exist as Java objects. +Therefore we created the two classes: ProjectTeamInputSource and +ProjectTeamXMLReader (in the same place as ProjectTeam above). +

+The XMLReader implementation (regard it as a special kind of XML parser) is +responsible for creating SAX events from the Java object. The InputSource +class is only used to hold the ProjectTeam object to be used. +

+Have a look at the source of ExampleObj2XML.java to find out how this is +used. For more detailed information see other resources on JAXP (ex. +An older JAXP tutorial). +

+ ExampleObj2PDF.java +

This + + example +combines the previous and the third to demonstrate +how you can transform a Java object to a PDF directly in one smooth run +by generating SAX events from the Java object that get fed to an XSL +transformation. The result of the transformation is then converted to PDF +using FOP as before. +

+ ExampleDOM2PDF.java +

This + + example +has FOP use a DOMSource instead of a StreamSource in order to +use a DOM tree as input for an XSL transformation. +

+ ExampleSVG2PDF.java (PDF Transcoder example) +

This + + example +shows the usage of the PDF Transcoder, a sub-application within FOP. +It is used to generate a PDF document from an SVG file. +

+ ExampleConcat.java (IF Concatenation example) +

+This can be found in the embedding.intermediate package within the +examples and describes how IF can be concatenated to produce a document. Because +IF has been through FOPs layout engine, it should be visually consistent with FO +rendered documents while allowing the user to merge numerous documents together. +

+ Final notes +

+These examples should give you an idea of what's possible. It should be easy +to adjust these examples to your needs. Also, if you have other examples that you +think should be added here, please let us know via either the fop-users or fop-dev +mailing lists. Finally, for more help please send your questions to the fop-users +mailing list. +

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/events.xml b/src/documentation/content/xdocs/1.1rc1/events.xml new file mode 100644 index 000000000..27daad59b --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/events.xml @@ -0,0 +1,449 @@ + + + + + +

+ Apache™ FOP: Events/Processing Feedback + $Revision$ +

+ +

+ Introduction +

+ In versions until 0.20.5, Apache™ FOP used + Avalon-style Logging where + it was possible to supply a logger per processing run. During the redesign + the logging infrastructure was switched over to + Commons Logging which is (like Log4J or + java.util.logging) a "static" logging framework (the logger is accessed through static + variables). This made it very difficult in a multi-threaded system to retrieve information + for a single processing run. +

+ With FOP's event subsystem, we'd like to close this gap again and even go further. The + first point is to realize that we have two kinds of "logging". Firstly, we have the logging + infrastructure for the (FOP) developer who needs to be able to enable finer log messages + for certain parts of FOP to track down a certain problem. Secondly, we have the user who + would like to be informed about missing images, overflowing lines or substituted fonts. + These messages (or events) are targeted at less technical people and may ideally be + localized (translated). Furthermore, tool and solution builders would like to integrate + FOP into their own solutions. For example, an FO editor should be able to point the user + to the right place where a particular problem occurred while developing a document template. + Finally, some integrators would like to abort processing if a resource (an image or a font) + has not been found, while others would simply continue. The event system allows to + react on these events. +

+ On this page, we won't discuss logging as such. We will show how the event subsystem can + be used for various tasks. We'll first look at the event subsystem from the consumer side. + Finally, the production of events inside FOP will be discussed (this is mostly interesting + for FOP developers only). +

+ The consumer side +

+ The event subsystem is located in the org.apache.fop.events package and its + base is the Event class. An instance is created for each event and is sent + to a set of EventListener instances by the EventBroadcaster. + An Event contains: +

an event ID,
a source object (which generated the event),
a severity level (Info, Warning, Error and Fatal Error) and
a map of named parameters.

+ The EventFormatter class can be used to translate the events into + human-readable, localized messages. +

+ A full example of what is shown here can be found in the + examples/embedding/java/embedding/events directory in the FOP distribution. + The example can also be accessed + via the web. +

+ Writing an EventListener +

+ The following code sample shows a very simple EventListener. It basically just sends + all events to System.out (stdout) or System.err (stderr) depending on the event severity. +

+ +

+ You can see that for every event the method processEvent of the + EventListener will be called. Inside this method you can do whatever + processing you would like including throwing a RuntimeException, if you want + to abort the current processing run. +

+ The code above also shows how you can turn an event into a human-readable, localized + message that can be presented to a user. The EventFormatter class does + this for you. It provides additional methods if you'd like to explicitly specify + the locale. +

+ It is possible to gather all events for a whole processing run so they can be + evaluated afterwards. However, care should be taken about memory consumption since + the events provide references to objects inside FOP which may themselves have + references to other objects. So holding on to these objects may mean that whole + object trees cannot be released! +

+ Adding an EventListener +

+ To register the event listener with FOP, get the EventBroadcaster which + is associated with the user agent (FOUserAgent) and add it there: +

+ +

+ Please note that this is done separately for each processing run, i.e. for each + new user agent. +

+ An additional listener example +

+ Here's an additional example of an event listener: +

+ By default, FOP continues processing even if an image wasn't found. If you have + more strict requirements and want FOP to stop if an image is not available, you can + do something like the following in the simplest case: +

+ +

+ Increasing the event severity to FATAL will signal the event broadcaster to throw + an exception and stop further processing. In the above case, all resource-related + events will cause FOP to stop processing. +

+ You can also customize the exception to throw (you can may throw a RuntimeException + or subclass yourself) and/or which event to respond to: +

+ +

+ This throws a RuntimeException with the FileNotFoundException + as the cause. Further processing effectively stops in FOP. You can catch the exception + in your code and react as you see necessary. +

+ The producer side (for FOP developers) +

+ This section is primarily for FOP and FOP plug-in developers. It describes how to use + the event subsystem for producing events. +

+ + The event package has been designed in order to be theoretically useful for use cases + outside FOP. If you think this is interesting independently from FOP, please talk to + us. + +

+ Producing and sending an event +

+ The basics are very simple. Just instantiate an Event object and fill + it with the necessary parameters. Then pass it to the EventBroadcaster + which distributes the events to the interested listeneners. Here's a code example: +

+ +

+ The Event.paramsBuilder() is a + fluent interface + to help with the build-up of the parameters. You could just as well instantiate a + Map (Map<String, Object>) and fill it with values. +

+ The EventProducer interface +

+ To simplify event production, the event subsystem provides the EventProducer + interface. You can create interfaces which extend EventProducer. These + interfaces will contain one method per event to be generated. By contract, each event + method must have as its first parameter a parameter named "source" (Type Object) which + indicates the object that generated the event. After that come an arbitrary number of + parameters of any type as needed by the event. +

+ The event producer interface does not need to have any implementation. The implementation + is produced at runtime by a dynamic proxy created by DefaultEventBroadcaster. + The dynamic proxy creates Event instances for each method call against + the event producer interface. Each parameter (except "source") is added to the event's + parameter map. +

+ To simplify the code needed to get an instance of the event producer interface it is + suggested to create a public inner provider class inside the interface. +

+ Here's an example of such an event producer interface: +

+ +

+ To produce the same event as in the first example above, you'd use the following code: +

+ +

+ The event model +

+ Inside an invocation handler for a dynamic proxy, there's no information about + the names of each parameter. The JVM doesn't provide it. The only thing you know is + the interface and method name. In order to properly fill the Event's + parameter map we need to know the parameter names. These are retrieved from an + event object model. This is found in the org.apache.fop.events.model + package. The data for the object model is retrieved from an XML representation of the + event model that is loaded as a resource. The XML representation is generated using an + Ant task at build time (ant resourcegen). The Ant task (found in + src/codegen/java/org/apache/fop/tools/EventProducerCollectorTask.java) + scans FOP's sources for descendants of the EventProducer interface and + uses QDox to parse these interfaces. +

+ The event model XML files are generated during build by the Ant task mentioned above when + running the "resourcegen" task. So just run "ant resourcegen" if you receive + a MissingResourceException at runtime indicating that + "event-model.xml" is missing. +

+ Primarily, the QDox-based collector task records the parameters' names and types. + Furthermore, it extracts additional attributes embedded as Javadoc comments from + the methods. At the moment, the only such attribute is "@event.severity" which indicates + the default event severity (which can be changed by event listeners). The example event + producer above shows the Javadocs for an event method. +

+ There's one more information that is extracted from the event producer information for + the event model: an optional primary exception. The first exception in the "throws" + declaration of an event method is noted. It is used to throw an exception from + the invocation handler if the event has an event severity of "FATAL" when all + listeners have been called (listeners can update the event severity). Please note + that an implementation of + org.apache.fop.events.EventExceptionManager$ExceptionFactory has to be + registered for the EventExceptionManager to be able to construct the + exception from an event. +

+ For a given application, there can be multiple event models active at the same time. + In FOP, each renderer is considered to be a plug-in and provides its own specific + event model. The individual event models are provided through an + EventModelFactory. This interface is implemented for each event model + and registered through the service provider mechanism + (see the plug-ins section for details). +

+ Event severity +

+ Four different levels of severity for events has been defined: +

INFO: informational only
WARN: a Warning
ERROR: an error condition from which FOP can recover. FOP will continue processing.
FATAL: a fatal error which causes an exception in the end and FOP will stop processing.

+ Event listeners can choose to ignore certain events based on their event severity. + Please note that you may recieve an event "twice" in a specific case: if there is + a fatal error an event is generated and sent to the listeners. After that an exception + is thrown with the same information and processing stops. If the fatal event is + shown to the user and the following exception is equally presented to the user it + may appear that the event is duplicated. Of course, the same information is just + published through two different channels. +

+ Plug-ins to the event subsystem +

+ The event subsystem is extensible. There are a number of extension points: +

+ org.apache.fop.events.model.EventModelFactory: Provides + an event model to the event subsystem. +
+ org.apache.fop.events.EventExceptionManager$ExceptionFactory: + Creates exceptions for events, i.e. turns an event into a specific exception. +

+ The names in bold above are used as filenames for the service provider files that + are placed in the META-INF/services directory. That way, they are + automatically detected. This is a mechanism defined by the + JAR file specification. +

+ Localization (L10n) +

+ One goal of the event subsystem was to have localized (translated) event messages. + The EventFormatter class can be used to convert an event to a + human-readable message. Each EventProducer can provide its own XML-based + translation file. If there is none, a central translation file is used, called + "EventFormatter.xml" (found in the same directory as the EventFormatter + class). +

+ The XML format used by the EventFormatter is the same as + Apache Cocoon's catalog format. Here's an example: +

+ + + + [ (See position {loc})| (See {#gatherContextInfo})| (No context info available)] + + + RTF output requires that all table-columns for a table are defined. Output will be incorrect.{{locator}} + + + Ignored deferred event for {node} ({start,if,start,end}).{{locator}} + + +]]> +

+ The example (extracted from the RTF handler's event producer) has message templates for + two event methods. The class used to do variable replacement in the templates is + org.apache.fop.util.text.AdvancedMessageFormat which is more powerful + than the MessageFormat classes provided by the Java class library + (java.util.text package). +

+ "locator" is a template that is reused by the other message templates + by referencing it through "{{locator}}". This is some kind of include command. +

+ Normal event parameters are accessed by name inside single curly braces, for example: + "{node}". For objects, this format just uses the toString() method to turn + the object into a string, unless there is an ObjectFormatter registered + for that type (there's an example for org.xml.sax.Locator). +

+ The single curly braces pattern supports additional features. For example, it is possible + to do this: "{start,if,start,end}". "if" here is a special field modifier that evaluates + "start" as a boolean and if that is true returns the text right after the second comma + ("start"). Otherwise it returns the text after the third comma ("end"). The "equals" + modifier is similar to "if" but it takes as an additional (comma-separated) parameter + right after the "equals" modifier, a string that is compared to the value of the variable. + An example: {severity,equals,EventSeverity:FATAL,,some text} (this adds "some text" if + the severity is not FATAL). +

+ Additional such modifiers can be added by implementing the + AdvancedMessageFormat$Part and AdvancedMessageFormat$PartFactory + interfaces. +

+ Square braces can be used to specify optional template sections. The whole section will + be omitted if any of the variables used within are unavailable. Pipe (|) characters can + be used to specify alternative sub-templates (see "locator" above for an example). +

+ Developers can also register a function (in the above example: + {#gatherContextInfo}) + to do more complex information rendering. These functions are implementations of the + AdvancedMessageFormat$Function interface. Please take care that this is + done in a locale-independent way as there is no locale information available, yet. +

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/extensions.xml b/src/documentation/content/xdocs/1.1rc1/extensions.xml new file mode 100644 index 000000000..02d83db96 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/extensions.xml @@ -0,0 +1,339 @@ + + + + + +

+ Standard Apache™ FOP Extensions + $Revision$ +

+ +

+ By "extension", we mean any data that can be placed in the input XML document that + is not addressed by the XSL-FO standard. + By having a mechanism for supporting extensions, Apache™ FOP is able to add features that + are not covered in the specification. +

+ The extensions documented here are included with FOP, and are automatically available + to you. If you wish to add an extension of your own to FOP, please see the + Developers' Extension Page. +

+ All extensions require the correct use of an appropriate namespace in your input document. +

+ SVG +

+ Please see the SVG documentation for more details. +

+ FO Extensions +

+ Namespace +

+ By convention, FO extensions in FOP use the "fox" namespace prefix. + To use any of the FO extensions, add a namespace entry for + http://xmlgraphics.apache.org/fop/extensions to the root element: +

+ ]]> +

+ PDF Bookmarks +

+ In old versions of Apache FOP there was a fox:outline element + which was used to create outlines in PDF files. The redesigned code makes use + of the bookmark feature defined in the W3C XSL 1.1 standard. +

+ Anchors or Named Destinations +

Use the fox:destination element to define "named destinations" inside a PDF document. +These are useful as fragment identifiers, e.g. "http://server/document.pdf#anchor-name". +fox:destination elements can be placed almost anywhere in the fo document, including a child of +root, a block-level element, or an inline-level element. +For the destination to actually work, it must correspond to an "id" attribute on some fo element +within the document. In other words, the "id" attribute actually creates the "view" within the +PDF document. The fox:destination simply gives that view an independent name. +

+ +... +Table of Contents]]> + It is possible that in some future release of FOP, all elements with +"id" attributes will generate named-destinations, which will eliminate the need for +fox:destination. +

+ Table Continuation Label +

This extension element hasn't been reimplemented for the redesigned code, yet.

+ +

+ fox:orphan-content-limit and fox:widow-content-limit +

+ The two proprietary extension properties, fox:orphan-content-limit and + fox:widow-content-limit, are used to improve the layout of list-blocks and tables. + If you have a table with many entries, you don't want a single row to be left over + on a page. You will want to make sure that at least two or three lines are kept + together. The properties take an absolute length which specifies the area at the + beginning (fox:widow-content-limit) or at the end (fox:orphan-content-limit) of a + table or list-block. The properties are inherited and only have an effect on fo:table + and fo:list-block. An example: fox:widow-content-limit="3 * 1.2em" would make sure + the you'll have at least three lines (assuming line-height="1.2") together on a table + or list-block. +

+ fox:external-document + + This feature is incomplete. Support for multi-page documents will be added shortly. + At the moment, only single-page images will work. And this will not work with RTF output. + +

+ This is a proprietary extension element which allows to add whole images as pages to + an FO document. For example, if you have a scanned document or a fax as multi-page TIFF + file, you can append or insert this document using the fox:external-document + element. Each page of the external document will create one full page in the target + format. +

+ The fox:external-document element is structurally a peer to + fo:page-sequence, so wherever you can put an fo:page-sequence + you could also place a fox:external-document. + Therefore, the specified contents for fo:root change to: +

+ + (layout-master-set, declarations?, bookmark-tree?, (page-sequence|page-sequence-wrapper|fox:external-document|fox:destination)+) + +

+ Specification +

+ The fox:external-document extension formatting object is used to specify + how to create a (sub-)sequence of pages within a document. The content of these pages + comes from the individual subimages/pages of an image or paged document (for example: + multi-page TIFF in the form of faxes or scanned documents, or PDF files). The + formatting object creates the necessary areas to display one image per page. +

+ In terms of page numbers, the behaviour is the same as for + fo:page-sequence. The placement of the image inside the page is similar + to that of fo:external-graphic or fo:instream-foreign-object, + i.e. the viewport (and therefore the page size) is defined by either the intrinsic + size of the image or by the size properties that apply to this formatting object. +

Content: EMPTY

The following properties apply to this formatting object:

(Common Accessibility Properties) (not implemented, yet)
(Common Aural Properties) (not implemented, yet)
block-progression-dimension
content-height
content-type
content-width
display-align
height
id
inline-progression-dimension
overflow
pages: <page-set> (see below) (not implemented, yet)
reference-orientation
scaling
scaling-method
src
text-align
width

+ Datatype "page-set": Value: auto | <integer-range>, + Default: "auto" which means all pages/subimages of the document. + <integer-range> allows values such as "7" or "1-3" +

+ + fox:external-document is not suitable for concatenating FO documents. + For this, XInclude is recommended. + +

+ Free-form Transformation for fo:block-container +

+ For fo:block-container elements whose absolute-position set to + "absolute" or "fixed" you can use the extension attribute fox:transform + to apply a free-form transformation to the whole block-container. The content of the + fox:transform attribute is the same as for + SVG's transform attribute. + The transformation specified here is performed in addition to other implicit + transformations of the block-container (resulting from top, left and other properties) + and after them. +

+ Examples: fox:transform="rotate(45)" would rotate the block-container + by 45 degrees clock-wise around its upper-left corner. + fox:transform="translate(10000,0)" would move the block-container to the + right by 10 points (=10000 millipoints, FOP uses millipoints internally!). +

+ + This extension attribute doesn't work for all output formats! It's currently only + supported for PDF, PS and Java2D-based renderers. + +

+ Color functions +

+ XSL-FO supports specifying color using the rgb(), rgb-icc() and system-color() functions. + Apache FOP provides additional color functions for special use cases. Please note that + using these functions compromises the interoperability of an FO document. +

+ cmyk() +

color cmyk(numeric, numeric, numeric, numeric)

+ This function will construct a color in device-specific CMYK color space. The numbers + must be between 0.0 and 1.0. For output formats that don't support device-specific + color space the CMYK value is converted to an sRGB value. +

+ #CMYK pseudo-profile +

color rgb-icc(numeric, numeric, numeric, #CMYK, numeric, numeric, numeric, numeric)

+ The rgb-icc function will respond to a pseudo-profile called "#CMYK" + which indicates a device-specific CMYK color space. The "#CMYK" profile is implicitely + available and doesn't have to be (and cannot be) defined through an + fo:color-profile element. It is provided for compatibility with certain + commercial XSL-FO implementations. Please note that this is not part of the official + specification but rather a convention. The following two color specifications are + equivalent: +

cmyk(0%,0%,20%,40%)
rgb-icc(153, 153, 102, #CMYK, 0, 0, 0.2, 0.4)

+ Prepress Support + +

+ This section defines a number of extensions related to + prepress support. + fox:scale defines a general scale factor for the generated pages. + fox:bleed defines the + bleed area for a page. + fox:crop-offset defines the outer edges of the area in which crop marks, + registration marks, color bars and page information are placed. + For details, please read on below. +

+ + Those extensions have been implemented in the PDF and Java2D renderers only. + + +

+ fox:scale +

Value: <number>{1,2}

Initial: 1

Applies to: fo:simple-page-master

+ This property specifies a scale factor along resp. the x and y axes. If only one number + is provided it is used for both the x and y scales. A scale factor smaller than 1 + shrinks the page. A scale factor greater than 1 enlarges the page. +

+ fox:bleed +

+ Value: <length>{1,4} +

+ Initial: 0pt +

Applies to: fo:simple-page-master

+ If there is only one value, it applies to all sides. If there are two values, the top and bottom + bleed widths are set to the first value and the right and left bleed widths are set to the second. + If there are three values, the top is set to the first value, the left and right are set to the second, + and the bottom is set to the third. If there are four values, they apply to the top, right, bottom, and + left, respectively. + (Corresponds to the definition of + padding). +

+ This extension indirectly defines the BleedBox and is calculated by expanding the TrimBox by + the bleed widths. The lengths must be non-negative. +

+ fox:crop-offset +

+ Value: <length>{1,4} +

+ Initial: bleed (see below) +

Applies to: fo:simple-page-master

+ Same behaviour as with fox:bleed. The initial value is set to the same values as the + fox:bleed property. +

+ This extension indirectly defines the MediaBox and is calculated by expanding + the TrimBox by the crop offsets. The lengths must be non-negative. +

+ fox:crop-box +

+ Value: [trim-box | bleed-box | media-box] +

+ Initial: media-box +

Applies to: fo:simple-page-master

+ The crop box controls how Acrobat displays the page (CropBox in PDF) or how the Java2DRenderer sizes + the output media. The PDF specification defines that the CropBox defaults to the MediaBox. This extension + follows that definition. To simplify usage and cover most use cases, the three supported enumeration + values "trim-box", "bleed-box" and "media-box" set the CropBox to one of those three other boxes. +

+ If requested in the future, we could offer to specify the CropBox in absolute coordinates rather + than just by referencing another box. +

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/fonts.xml b/src/documentation/content/xdocs/1.1rc1/fonts.xml new file mode 100644 index 000000000..f3481607d --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/fonts.xml @@ -0,0 +1,579 @@ + + + + + +

+ Apache™ FOP: Fonts + $Revision$ + + + + + + +

+ +

+ Summary +

The following table summarizes the font capabilities of the various Apache� FOP renderers:

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Renderer	Base-14	AWT/OS	Custom	Custom Embedding
PDF	yes	no	yes	yes
PostScript	yes	no	yes	yes
PCL	yes (modified)	yes (painted as bitmaps)	yes (painted as bitmaps)	no
AFP	no	no	yes	yes
Java2D/AWT/Bitmap	if available from OS	yes	yes	n/a (display only)
Print	if available from OS	yes	yes	controlled by OS printer driver
RTF	n/a (font metrics not needed)	n/a	n/a	n/a
TXT	yes (used for layout but not for output)	no	yes (used for layout but not for output)	no
XML	yes	no	yes	n/a

+ Base-14 Fonts +

+ The Adobe PostScript and PDF Specification specify a set of 14 fonts that must be + available to every PostScript interpreter and PDF reader: + Helvetica (normal, bold, italic, bold italic), + Times (normal, bold, italic, bold italic), + Courier (normal, bold, italic, bold italic), + Symbol and ZapfDingbats. +

+ The following font family names are hard-coded into FOP for the Base-14 font set: +

+ + + + + + + + + + + + + + + + + + + + + + + + + +

Base-14 font	font families
Helvetica	Helvetica, sans-serif, SansSerif
Times	Times, Times Roman, Times-Roman, serif, any
Courier	Courier, monospace, Monospaced
Symbol	Symbol
ZapfDingbats	ZapfDingbats

+ Please note that recent versions of Adobe Acrobat Reader replace + "Helvetica" with "Arial" and "Times" with "Times New Roman" internally. + GhostScript replaces "Helvetica" with "Nimbus Sans L" and "Times" with + "Nimbus Roman No9 L". Other document viewers may do similar font + substitutions. If you need to make sure that there are no such + substitutions, you need to specify an explicit font and embed it in + the target document. +

+ Missing Fonts +

+ When FOP does not have a specific font at its disposal (because it's + not installed in the operating system or set up in FOP's configuration), + the font is replaced with "any". "any" is internally mapped to the + Base-14 font "Times" (see above). +

+ Missing Glyphs +

+ Every font contains a particular set of + glyphs. If no glyph can be found for + a given character, FOP will issue a warning and use the glpyh for "#" (if available) + instead. Before it does that, it consults a (currently hard-coded) registry of + glyph substitution groups (see Glyphs.java in Apache XML Graphics Commons). + This registry can supply alternative glyphs in some cases (like using space when a no-break + space is requested). But there's no guarantee that the result will be as expected (for + example, in the case of hyphens and similar glyphs). A better way is to use a font that + has all the necessary glyphs. This glyph substitution is only a last resort. +

+ Java2D/AWT/Operating System Fonts +

+ The Java2D family of renderers (Java2D, AWT, Print, TIFF, PNG), use the + Java AWT subsystem for font metric information. Through operating system + registration, the AWT subsystem knows what fonts are available on the system, + and the font metrics for each one. +

+ When working with one of these output formats and you're missing a font, just + install it in your operating system and they should be available for these + renderers. Please note that this is not true for other output formats such as + PDF or PostScript. +

+ Custom Fonts +

+ Support for custom fonts is highly output format dependent (see above table). + This section shows how to add Type 1 and TrueType fonts to the PDF, PostScript and + Java2D-based renderers. Other renderers (like AFP) support other font formats. Details + in this case can be found on the page about output formats. +

+ In earlier FOP versions, it was always necessary to create an XML font metrics file + if you wanted to add a custom font. This unconvenient step has been removed and in + addition to that, FOP supports auto-registration of fonts, i.e. FOP can find fonts + installed in your operating system or can scan user-specified directories for fonts. + Font registration via XML font metrics file is still supported and may still be necessary + for some very special cases as fallback variant while we stabilize font auto-detection. +

+ Basic information about fonts can be found at: +

+ Adobe font types +
+ Adobe Font Technote +

+ Basic font configuration +

+ If you want FOP to use custom fonts, you need to tell it where to find them. This + is done in the configuration file and once per renderer (because each output format + is a little different). In the basic form, you can either tell FOP to find your + operating system fonts or you can specify directories that it will search for + support fonts. These fonts will then automatically be registered. +

+ + + + + C:\MyFonts1 + + + C:\MyFonts2 + + + + + +]]> + + Review the documentation for FOP Configuration + for instructions on making the FOP configuration available to FOP when it runs. + Otherwise, FOP has no way of finding your custom font information. It is currently + not possible to easily configure fonts from Java code. + +

+ Advanced font configuration +

+ The instructions found above should be sufficient for most users. Below are some + additional instructions in case the basic font configuration doesn't lead to + the desired results. +

+ Type 1 Font Metrics +

FOP includes PFMReader, which reads the PFM file that normally comes with a Type 1 font, and generates an appropriate font metrics file for it. + To use it, run the class org.apache.fop.fonts.apps.PFMReader:

Windows:

+ java -cp build\fop.jar;lib\avalon-framework.jar;lib\commons-logging.jar;lib\commons-io.jar + org.apache.fop.fonts.apps.PFMReader [options] pfm-file xml-file +

Unix:

+ java -cp build/fop.jar:lib/avalon-framework.jar:lib/commons-logging.jar:lib/commons-io.jar + org.apache.fop.fonts.apps.PFMReader [options] pfm-file xml-file +

PFMReader [options]:

-fn <fontname> By default, FOP uses the fontname from the + .pfm file when embedding the font. Use the "-fn" option to override this name with one you have + chosen. This may be useful in some cases to ensure that applications using the output document + (Acrobat Reader for example) use the embedded font instead of a local font with the same + name.

+ The classpath in the above example has been simplified for readability. + You will have to adjust the classpath to the names of the actual JAR files in the lib directory. + xml-apis.jar, xercesImpl.jar, xalan.jar and serializer.jar are not necessary for JDK version 1.4 or later. + The tool will construct some values (FontBBox, StemV and ItalicAngle) based on assumptions and calculations which are only an approximation to the real values. + FontBBox and Italic Angle can be found in the human-readable part of the PFB file or in the AFM file. + The PFMReader tool does not yet interpret PFB or AFM files, so if you want to be correct, you may have to adjust the values in the XML file manually. + The constructed values however appear to have no visible influence. +

+ TrueType Font Metrics +

FOP includes TTFReader, which reads the TTF file and generates an appropriate font metrics file for it. + Use it in a similar manner to PFMReader. + For example, to create such a metrics file in Windows from the TrueType font at c:\myfonts\cmr10.ttf:

+ java -cp build\fop.jar;lib\avalon-framework.jar;lib\commons-logging.jar;lib\commons-io.jar + org.apache.fop.fonts.apps.TTFReader [options] + C:\myfonts\cmr10.ttf ttfcm.xml +

TTFReader [options]:

-d <DEBUG | INFO > Sets the debug level (default is + INFO).
-fn <fontname> Same as for PFMReader.
-ttcname <fontname> If you're reading data from a + TrueType Collection (.ttc file) you must specify which font from the collection you will read + metrics from. + If you read from a .ttc file without this option, the fontnames will be listed for you.
-enc ansi Creates a WinAnsi-encoded font metrics file. + Without this option, a CID-keyed font metrics file is created. + The table below summarizes the differences between these two encoding options as currently + used within FOP. + Please note that this information only applies to TrueType fonts and TrueType collections:

+ + + + + + + + + + + + + + + + +

Issue	WinAnsi	CID-keyed
Usable Character Set	Limited to WinAnsi character set, which is roughly equivalent to iso-8889-1.	Limited only by the characters in the font itself.
Embedding the Font	Optional.	Mandatory. Not embedding the font produces invalid PDF documents.

+ + You may experience failures with certain TrueType fonts, especially if they don't contain + the so-called Unicode "cmap" table. TTFReader can currently not deal with font like this. + +

+ TrueType Collections +

TrueType collections (.ttc files) contain more than one font. + To create metrics files for these fonts, you must specify which font in the collection should be generated, by using the "-ttcname" option with the TTFReader.

To get a list of the fonts in a collection, just start the TTFReader as if it were a normal TrueType file (without the -ttcname option). + It will display all of the font names and exit with an Exception.

Here is an example of generating a metrics file for a .ttc file:

+ java -cp build\fop.jar;lib\avalon-framework.jar;lib\commons-logging.jar;lib\commons-io.jar + org.apache.fop.fonts.apps.TTFReader -ttcname "MS Mincho" + msmincho.ttc msminch.xml +

+ Alternatively, the individual sub-fonts of a TrueType Collections can be selected + using the "sub-font" attribute on the "font" element. That means that generating + an XML font metrics file for TrueType collections is not necessary anymore. Example: +

+ + +]]> +

+ Register Fonts with FOP +

You must tell FOP how to find and use the font metrics files by registering them in the FOP Configuration. Add entries for your custom fonts, regardless of font type, to the configuration file in a manner similar to the following:

+ + + + + + + + + + C:\MyFonts1 + + + C:\MyFonts2 + + + + + +]]> +

+ URLs are used to access the font metric and font files. + Relative URLs are resolved relative to the font-base property (or base) if available. + See FOP: Configuration for more information. +
The "metrics-url" attribute is generally not necessary except if you run into problems with certain fonts.
Either an "embed-url" or a "metrics-url" must be specified for font tag configurations.
The font "kerning" attribute is optional. Default is "true".
If embedding is off (i.e. embed-url is not set), the output will position the text correctly (from the metrics file), but it will not be displayed or printed correctly unless the viewer has the applicable font available to their local system.
When setting the "embed-url" attribute for Type 1 fonts, be sure to specify the PFB (actual font data), not PFM (font metrics) file that you used to generate the XML font metrics file.
The attribute "encoding-mode" is optional an may have the following values: +
- auto: default font encoding mode ("cid" for Truetype, "single-byte" for Type 1)
- single-byte: use single-byte encodings in the target format (if applicable)
- cid: encode as CID-keyed font (currently only supported for PDF output with TrueType fonts)
+
The fonts "directory" tag can be used to register fonts contained within a single or list of directory paths. The "recursive" attribute can be specified to recursively add fonts from all sub directories.
The fonts "auto-detect" tag can be used to automatically register fonts that are found to be installed on the native operating system.
Fonts registered with "font" tag configurations override fonts found by means of "directory" tag definitions.
Fonts found as a result of a "directory" tag configuration override fonts found as a result of the "auto-detect" tag being specified.
+ If relative URLs are specified, they are evaluated relative to the value of the + "font-base" setting. If there is no "font-base" setting, the fonts are evaluated + relative to the base directory. +

+ +

+ Auto-Detect and auto-embed feature +

When the "auto-detect" flag is set in the configuration, FOP will automatically search for fonts in the default paths for your operating system.

FOP will also auto-detect fonts which are available in the classpath, if they are described as "application/x-font" in the MANIFEST.MF file. For example, if your .jar file contains font/myfont.ttf:

+ Manifest-Version: 1.0 + + Name: font/myfont.ttf + Content-Type: application/x-font +

This feature allows you to create JAR files containing fonts. The JAR files can be added to fop by providem them in the classpath, e.g. copying them into the lib/ directory.

+ The font cache +

+ Apache FOP maintains a cache file that is used to speed up auto-detection. This file + is usually found in the ".fop" directory under the user's home directory. It's called + "fop-fonts.cache". When the user's home directory is not writable, the font cache file + is put in the directory for temporary files. +

+ If there was a problem loading a particular font, it is flagged in the cache file so + it is not loaded anymore. So, if a font is actually around but is still not found + by Apache FOP, it's worth a try to delete the font cache file which forces Apache FOP + to reparse all fonts. +

+ Embedding +

+ By default, all fonts are embedded if an output format supports font embedding. In some + cases, however, it is preferred that some fonts are only referenced. When working + with referenced fonts it is important to be in control of the target environment where + the produced document is consumed, i.e. the necessary fonts have to be installed there. +

+ There are two different ways how you can specify that a font should be referenced: +

+ When using the old-style "font" element to configure a single font, font referencing + is controlled by the embed-url attribute. If you don't specify the embed-url attribute + the font will not be embedded, but will only be referenced. +
+ For automatically configured fonts there's a different mechanism to specify which + fonts should be referenced rather than embedded. This is done in the "referenced-fonts" + element in the configuration. Here's an example: +

+ + + + + + + +]]> +

+ At the moment, you can only match fonts against their font-family. It is possible to use + regular expressions as is shown in the second example above ("DejaVu.*"). The syntax for + the regular expressions used here are the one used by the + java.util.regex package. + So, in the above snippet "Helvetica" and all variants of the "DejaVu" font family are + referenced. If you want to reference all fonts, just specify font-family=".*". +

+ The referenced-fonts element can be placed either inside the general + fonts element (right under the root) or in the fonts element + under the renderer configuration. In the first case, matches apply to all renderers. + In the second case, matches only apply to the renderer where the element was specified. + Both cases can be used at the same time. +

+ Various notes related to embedded fonts: +

The PostScript renderer does not yet support TrueType fonts, but can embed Type 1 fonts.
The font is simply embedded into the PDF file, it is not converted.
When FOP embeds a font, it adds a prefix to the fontname to ensure that the name will not match the fontname of an installed font. + This is helpful with older versions of Acrobat Reader that preferred installed fonts over embedded fonts.
When embedding PostScript fonts, the entire font is always embedded.
When embedding TrueType fonts (ttf) or TrueType Collections (ttc), a subset of the + original font, containing only the glyphs used, is embedded in the output document. + That's the default, but if you specify encoding-mode="single-byte" (see above), the + complete font is embedded.

+ Substitution +

When a <substitutions/> section is defined in the configuration, FOP will re-map any font-family references found in your FO input to a given substitution font.

If a <substitution/> is declared, it is mandatory that both a <from/> and <to/> child element is declared with a font-family attribute.
Both font-weight and font-style are optional attributes, if they are provided then a value of 'normal' is assumed.

For example you could make all FO font-family references to 'Arial' with weights between 700 and 900 reference the normal 'Arial Black' font.

+ + + + + + + + + + + + + +]]> +

+ +

+ Font Selection Strategies +

+ There are two font selection strategies: character-by-character or auto. The default is auto.

Auto selected the first font from the list which is able to display the most characters in a given word. This means (assume font A has characters for abclmn, font B for lnmxyz, fontlist is A,B):

aaa lll xxx would be displayed in fonts A A B
aaaxx would be displayed in font A
aaaxxx would be displayed in font A
aaaxxxx would be displayed in font B

Character-by-Character is NOT yet supported!

+ Font List Command-Line Tool +

+ FOP contains a small command-line tool that lets you generate a list of all configured + fonts. Its class name is: org.apache.fop.tools.fontlist.FontListMain. + Run it with the "-?" parameter to get help for the various options. +

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/fotree/disabled-testcases.xml b/src/documentation/content/xdocs/1.1rc1/fotree/disabled-testcases.xml new file mode 100644 index 000000000..196eafcc4 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/fotree/disabled-testcases.xml @@ -0,0 +1,31 @@ + + + + + + demo test failure + demo-test-failure.fo + + + + Markers and core function evaluation + from-table-column_marker.fo + The code currently evaluates this function according to the column in which the + marker appears in the source document, rather than the column it is retrieved in. + + diff --git a/src/documentation/content/xdocs/1.1rc1/graphics.xml b/src/documentation/content/xdocs/1.1rc1/graphics.xml new file mode 100644 index 000000000..b1653443a --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/graphics.xml @@ -0,0 +1,590 @@ + + + + + +

+ Apache™ FOP: Graphics Formats + $Revision$ +

+ +

+ Introduction +

+ Some noteworthy features of the image handling subsystem are: +

+ The image libraries Jimi and JAI are not supported. Instead, Apache™ FOP uses the + Image I/O API that was introduced with Java 1.4 for all bitmap codecs. +
+ Some bitmap images are not converted to a standardized 24 bit RGB image but are + instead handled in their native format. +
+ A plug-in mechanism offers a possibility to add support for new formats without changing + the FOP's source code. +

+ The actual image loading framework + does not reside in Apache FOP, but in + XML Graphics Commons. +

+ Overview of Graphics Support +

+ The table below summarizes the theoretical support for graphical formats + within FOP. In other words, within the constraints of the limitations listed here, + these formats should work. However, many of them have not been tested, + and there may be limitations that have not yet been discovered or documented. + The packages needed to support some formats are not included in the FOP distribution + and must be installed separately. Follow the links in the "Support Through" columns + for more details. +

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Format	Type	Support Through
Format	Type	Apache FOP (native)	Apache Batik	Image I/O
BMP (Microsoft Windows Bitmap)	bitmap	+	+	X [1]
EMF (Windows Enhanced Metafile)	vector (with embedded bitmaps)	(X)	+	+
EPS (Encapsulated PostScript)	metafile (both bitmap and vector), most frequently used for vector drawings	(X)	+	+
GIF (Graphics Interchange Format)	bitmap	+	+	X
JPEG (Joint Photographic Experts Group)	bitmap	(X)	+	X
PNG (Portable Network Graphic)	bitmap	+	+	X
SVG (Scalable Vector Graphics)	vector (with embedded bitmaps)	+	X	+
TIFF (Tag Image Format File)	bitmap	(X)	+	X [1]
WMF (Windows Metafile)	vector (with embedded bitmaps)	+	(X)	+

+ Legend: +

"(X)" means restricted support. Please see the details below.
+ [1]: Requires the presence of JAI Image I/O Tools + (or an equivalent Image I/O compatible codec) in the classpath. JAI Image I/O Tools also + adds support for JPEG 2000, WBMP, RAW and PNM. Other Image I/O codecs may provide + support for additional formats. +

+ + JAI Image I/O Tools is not the same as the + JAI library! The + former simply exposes JAI's codecs using the Image I/O API but does not include all + the image manipulation functionality. + +

+ Map of supported image formats by output format +

+ Not all image formats are supported for all output formats! For example, while you can + use EPS (Encapsulated PostScript) files when you generate PostScript output, this format + will not be supported by any other output format. Here's an overview of which image + formats are supported by which output format: +

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Image Format	PDF	PostScript	Java2D, PNG, TIFF, AWT	PCL	AFP	RTF
BMP (Microsoft Windows Bitmap)	X	X	X	X	X	X
EMF (Windows Enhanced Metafile)	+	+	+	+	+	X [1]
EPS (Encapsulated PostScript)	+	X [1]	+	+	+	+
GIF (Graphics Interchange Format)	X	X	X	X	X	X
JPEG (Joint Photographic Experts Group)	X [1]	X [1]	X	X	X [1]	X
PNG (Portable Network Graphic)	X	X	X	X	X	X
SVG (Scalable Vector Graphics)	X	X	X	X	X	X
TIFF (Tag Image Format File)	X [2]	X [2]	X	X	X [2]	X
WMF (Windows Metafile)	X	X	X	X	X	X

+ Legend: +

+ [1]: Supported without the need to decode the image. +
+ [2]: Supported without the need to decode the image, but only for certain subtypes. +

+ Graphics Packages +

+ XML Graphics Commons Native +

+ XML Graphics Commons supports a number + of graphic file formats natively as basic functionality: all bitmap formats for which + there are Image I/O codecs available (JPEG, PNG, GIF, TIFF, etc.), EPS and EMF. +

+ FOP Native +

+ FOP has no native image plug-ins for the image loading framework of its own but currently + hosts the Batik-dependent SVG and WMF plug-ins until they can be moved to + Apache Batik. +

+ Apache Batik +

+ Apache Batik will later receive the + SVG and WMF plug-ins for the image loading framework that are currently hosted inside + FOP. +

+ Current FOP distributions include a distribution of the + Apache Batik. + Because Batik's API changes frequently, it is highly recommended that you use the + version that ships with FOP, at least when running FOP. +

+ Batik must be run in a graphical environment. +

+ Batik must be run in a graphical environment. + It uses AWT classes for rendering SVG, which in turn require an X server on Unixish + systems. If you run a server without X, or if you can't connect to the X server due to + security restrictions or policies (a so-called "headless" environment), SVG rendering + will fail. +

Here are some workarounds:

+ Start Java with the -Djava.awt.headless=true command line option. +
+ Install an X server which provides an in-memory framebuffer without actually using a + screen device or any display hardware. One example is Xvfb. +
+ Install a toolkit which emulates AWT without the need for an underlying X server. One + example is the PJA toolkit, which is free + and comes with detailed installation instructions. +

+ Image I/O +

+ The image loading framework in XML Graphics Commons + provides a wrapper to load images through the + JDK's Image I/O API (JSR 015). + Image I/O allows to dynamically add additional image codecs. An example of such an + add-on library are the + JAI Image I/O Tools + available from Sun. +

+ Details on image formats +

+ BMP +

+ BMP images are supported through an Image I/O codec. There may be limitations of the + codec which are outside the control of Apache FOP. +

+ EMF +

+ Windows Enhanced Metafiles (EMF) are only supported in RTF output where they are + embedded without decoding. +

+ EPS +

Apache FOP allows to use EPS files when generating PostScript output only.

+ Other output targets can't be supported at the moment because + FOP lacks a PostScript interpreter. Furthermore, FOP is currently not able + to parse the preview bitmaps sometimes contained in EPS files. +

+ GIF +

+ GIF images are supported through an Image I/O codec. Transparency is supported but + not guaranteed to work with every output format. +

+ JPEG +

+ FOP native support (i.e. the handling of undecoded images) of JPEG does not include all + variants, especially those containing unusual color lookup tables and color profiles. + If you have trouble with a JPEG image in FOP, try opening it with an image processing + program (such as Photoshop or Gimp) and then saving it. Specifying 24-bit color output + may also help. For the PDF and PostScript renderers most JPEG images can be passed + through without decompression. User reports indicate that grayscale, RGB, and + CMYK color spaces are all rendered properly. However, for other output formats, the + JPEG images have to be decompressed. Tests have shown that there are some limitation + in some Image I/O codecs concerning images in the CMYK color space. Work-arounds are + in place but may not always work as expected. +

+ PNG +

+ PNG images are supported through an Image I/O codec. Transparency is supported but + not guaranteed to work with every output format. +

+ SVG +

+ Introduction +

FOP uses Apache Batik for SVG support. + This format can be handled as an fo:instream-foreign-object or in a separate + file referenced with fo:external-graphic.

+ + Batik's SVG Rasterizer utility may also be used to convert standalone SVG + documents into PDF. For more information please see the + SVG Rasterizer documentation + on the Batik site. + +

+ Placing SVG Graphics into PDF +

+ The SVG is rendered into PDF by using PDF commands to draw and fill + lines and curves. This means that the graphical objects created with + this remain as vector graphics. The same applies to PostScript output. + For other output formats the SVG graphic may be converted to a bitmap + image. +

+ There are a number of SVG things that cannot be converted directly into + PDF. Parts of the graphic such as effects, patterns and images are inserted + into the PDF as a raster graphic. The resolution of these raster images can + be controlled through the "target resolution" setting in the + configuration.

+ Currently transparency is limited in PDF so some SVG images that + contain effects or graphics with transparent areas may not be displayed + correctly. +

+ Placing SVG Text into PDF and PostScript +

If possible, Batik will use normal PDF or PostScript text when inserting text. It does + this by checking if the text can be drawn normally and the font is + supported. This example svg text.svg / + text.pdf / text.png + shows how various types and effects with text are handled. + Note that SVG font support is not yet implemented. Furthermore, text handling in + PostScript output is inferior to PDF output - more text will be painted as shapes in + PS than in PDF. +

+ When there's no support to paint text using native text operations, + text is converted and drawn as a set of shapes by Batik, using the + stroking text painter. This means that a typical character will + have about 10 curves (each curve consists of at least 20 characters). + This can make the output files large and when it is viewed the + viewer may not normally draw those fine curves very well (In Adobe Acrobat, turning on + "Smooth Line Art" in the preferences will fix this). Copy/paste functionality + will not be supported in this case. + If the text is inserted into the output file using the inbuilt text commands + it will use a single character. +

+ Note that because SVG text can be rendered as either text or a vector graphic, you + may need to consider settings in your viewer for both. The Acrobat viewer has both + "smooth line art" and "smooth text" settings that may need to be set for SVG images + to be displayed nicely on your screen (see Edit / Preferences / Display). + This setting will not affect the printing of your document, which should be OK in + any case, but will only affect the quality of the screen display. +

+ Font selection notes +

+ Apache Batik uses the AWT/Java2D subsystem as font source while FOP has its own font + subsystem. Great care has been taken that font selection does the best possible choices. + But it must be noted when creating PDF or PostScript that a font used in SVG graphics + needs to be registered with the operating system as well as in FOP's configuration. + By using FOP's font auto-detection, you simply have to install the font in the operating + system and not care about anything else. This is less of an issue if you create + formats like TIFFs, PNGs or PCL because in these cases SVG graphics are usually rendered + to bitmaps which means that on both sides (Batik and FOP), AWT/Java2D is used as the + single font source. +

+ Whenever an SVG is converted into a PDF or PostScript file, the font that has been used + inside Batik has to be mapped to a font used by the actual output format. Features like + font substitution in FOP may need to be taken into account but can also be an advantage + when working around font mapping issues. Like for XSL-FO content, you'll get a warning + if a particular font could not be found and had to be substituted, or if a particular + glyph is missing in a font. +

+ Scaling +

+ Currently, SVG images are rendered with the dimensions specified in the SVG + file, within the viewport specified in the fo:external-graphic element. + For everything to work properly, the two should be equal. The SVG standard leaves + this issue as an implementation detail. Additional scaling options are available + through XSL-FO means. +

+ If you use pixels to specify the size of an SVG graphic the "source resolution" setting + in the configuration will be used to determine the + size of a pixel. The use of pixels to specify sizes is discouraged as they may + be interpreted differently in different environments. +

+ Known Problems +

+ Soft mask transparency is combined with white so that it looks better + on PDF 1.3 viewers but this causes the soft mask to be slightly lighter + or darker on PDF 1.4 viewers. +
+ There is some problem with a gradient inside a pattern which may cause a PDF + error when viewed in Acrobat 5. +
+ Text is not always handled correctly, it may select the wrong font + especially if characters have multiple fonts in the font list. +
+ Uniform transparency for images and other SVG elements that are converted + into a raster graphic are not drawn properly in PDF. The image is opaque. +

+ TIFF +

+ FOP can embed TIFF images without decompression into PDF, PostScript and AFP if they + have either CCITT T.4, CCITT T.6, or JPEG compression. Otherwise, a TIFF-capable + Image I/O codec is necessary for decoding the image. +

+ There may be some limitation concerning images in the CMYK color space. +

+ WMF +

+ Windows Metafiles (WMF) are supported through classes in + Apache Batik. At the moment, support + for this format is experimental and may not always work as expected. +

+ Graphics Resolution +

+ Some bitmapped image file formats store a dots-per-inch (dpi) or other resolution + values. FOP tries to use this resolution information whenever possible to determine + the image's intrinsic size. This size is used during the layout process when it is not + superseded by an explicit size on fo:external-graphic (content-width and content-height + properties). +

+ Please note that not all images contain resolution information. If it's not available + the source resolution set on the FopFactory (or through the user configuration XML) is used. + The default here is 72 dpi. +

+ Bitmap images are generally embedded into the output format at their original resolution + (as is). No resampling of the image is performed. Explicit resampling is on our wishlist, + but hasn't been implemented, yet. Bitmaps included in SVG graphics may be resampled to + the resolution specified in the "target resolution" setting in the + configuration if SVG filters are applied. This can be + used as a work-around to resample images in FO documents. +

+ Page selection for multi-page formats +

+ Some image formats such as TIFF support multiple pages/sub-images per file. You can + select a particular page using a special URI fragment in the form: + <uri>#page=<nr> + (for example: http://localhost/images/myimage.tiff#page=3) +

+ Image caching +

+ FOP caches images between runs. There is one cache per FopFactory instance. The URI is + used as a key to identify images which means that when a particular URI appears again, + the image is taken from the cache. If you have a servlet that generates a different + image each time it is called with the same URI you need to use a constantly + changing dummy parameter on the URI to avoid caching. +

+ The image cache has been improved considerably in the redesigned code. Therefore, + resetting the image cache should be a thing of the past. If you + still experience OutOfMemoryErrors, please notify us. +

+ If all else fails, the image cache can be cleared like this: + fopFactory.getImageManager().getCache().clearCache(); +

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/hyphenation.xml b/src/documentation/content/xdocs/1.1rc1/hyphenation.xml new file mode 100644 index 000000000..e6f666826 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/hyphenation.xml @@ -0,0 +1,237 @@ + + + + + +

+ Apache™ FOP: Hyphenation + $Revision$ +

+ +

+ Hyphenation Support +

+ Introduction +

Apache™ FOP uses Liang's hyphenation algorithm, well known from TeX. It needs + language specific pattern and other data for operation.

Because of licensing issues (and for + convenience), all hyphenation patterns for FOP are made available through + the Objects For + Formatting Objects project.

+ If you have made improvements to an existing Apache™ FOP hyphenation pattern, + or if you have created one from scratch, please consider contributing these + to OFFO so that they can benefit other FOP users as well. + Please inquire on the FOP User + mailing list. +

+ License Issues +

Many of the hyphenation files distributed with TeX and its offspring are + licenced under the LaTeX + Project Public License (LPPL), which prevents them from being + distributed with Apache software. The LPPL puts restrictions on file names + in redistributed derived works which we feel can't guarantee. Some + hyphenation pattern files have other or additional restrictions, for + example against use for commercial purposes.

Although Apache FOP cannot redistribute hyphenation pattern files that do + not conform with its license scheme, that does not necessarily prevent users + from using such hyphenation patterns with FOP. However, it does place on + the user the responsibility for determining whether the user can rightly use + such hyphenation patterns under the hyphenation pattern license.

+ The user is responsible to settle license issues for hyphenation + pattern files that are obtained from non-Apache sources. +

+ Sources of Custom Hyphenation Pattern Files +

The most important source of hyphenation pattern files is the + CTAN TeX + Archive.

+ Installing Custom Hyphenation Patterns +

To install a custom hyphenation pattern for use with FOP:

Convert the TeX hyphenation pattern file to the FOP format. The FOP + format is an xml file conforming to the DTD found at + {fop-dir}/hyph/hyphenation.dtd.
Name this new file following this schema: + languageCode_countryCode.xml. The country code is + optional, and should be used only if needed. For example: +
- en_US.xml would be the file name for American + English hyphenation patterns.
- it.xml would be the file name for Italian + hyphenation patterns.
+ The language and country codes must match the XSL-FO input, which + follows ISO + 639 (languages) and ISO + 3166 (countries). NOTE: The ISO 639/ISO 3166 convention is that + language names are written in lower case, while country codes are written + in upper case. FOP does not check whether the language and country specified + in the FO source are actually from the current standard, but it relies + on it being two letter strings in a few places. So you can make up your + own codes for custom hyphenation patterns, but they should be two + letter strings too (patches for proper handling extensions are welcome)
There are basically three ways to make the FOP-compatible hyphenation pattern + file(s) accessible to FOP: +
- Download the precompiled JAR from OFFO + and place it either in the {fop-dir}/lib directory, or + in a directory of your choice (and append the full path to the JAR to + the environment variable FOP_HYPHENATION_PATH).
- Download the desired FOP-compatible hyphenation pattern file(s) from + OFFO, + and/or take your self created hyphenation pattern file(s), +
  - place them in the directory {fop-dir}/hyph,
  - or place them in a directory of your choice and set the Ant variable + user.hyph.dir to point to that directory (in + build-local.properties),
  + and run Ant with build target + jar-hyphenation. This will create a JAR containing the + compiled patterns in {fop-dir}/build that will be added to the + classpath on the next run. + (When FOP is built from scratch, and there are pattern source file(s) + present in the directory pointed to by the + user.hyph.dir variable, this JAR will automatically + be created from the supplied pattern(s)).
- Put the pattern source file(s) into a directory of your choice and + configure FOP to look for custom patterns in this directory, by setting the + <hyphenation-base> + configuration option.
+

+ + Either of these three options will ensure hyphenation is working when using + FOP from the command-line. If FOP is being embedded, remember to add the location(s) + of the hyphenation JAR(s) to the CLASSPATH (option 1 and 2) or to set the + <hyphenation-dir> + configuration option programmatically (option 3). + +

+ Hyphenation Patterns +

If you would like to build your own hyphenation pattern files, or modify + existing ones, this section will help you understand how to do so. Even + when creating a pattern file from scratch, it may be beneficial to start + with an existing file and modify it. See + OFFO's Hyphenation page for examples. + Here is a brief explanation of the contents of FOP's hyphenation patterns:

+ The remaining content of this section should be considered "draft" + quality. It was drafted from theoretical literature, and has not been + tested against actual FOP behavior. It may contain errors or omissions. + Do not rely on these instructions without testing everything stated here. + If you use these instructions, please provide feedback on the + FOP User mailing list, either + confirming their accuracy, or raising specific problems that we can + address. +

The root of the pattern file is the <hyphenation-info> element.
<hyphen-char>: its attribute "value" contains the character signalling + a hyphen in the <exceptions> section. It has nothing to do with the + hyphenation character used in FOP, use the XSLFO hyphenation-character + property for defining the hyphenation character there. At some points + a dash U+002D is hardwired in the code, so you'd better use this too + (patches to rectify the situation are welcome). There is no default, + if you declare exceptions with hyphenations, you must declare the + hyphen-char too.
<hyphen-min> contains two attributes: +
- before: the minimum number of characters in a word allowed to exist + on a line immediately preceding a hyphenated word-break.
- after: the minimum number of characters in a word allowed to exist + on a line immediately after a hyphenated word-break.
+ This element is unused and not even read. It should be considered a + documentation for parameters used during pattern generation. +
<classes> contains whitespace-separated character sets. The members + of each set should be treated as equivalent for purposes of hyphenation, + usually upper and lower case of the same character. The first character + of the set is the canonical character, the patterns and exceptions + should only contain these canonical representation characters (except + digits for weight, the period (.) as word delimiter in the patterns and + the hyphen char in exceptions, of course).
<exceptions> contains whitespace-separated words, each of which + has either explicit hyphen characters to denote acceptable breakage + points, or no hyphen characters, to indicate that this word should + never be hyphenated, or contain explicit <hyp> elements for specifying + changes of spelling due to hyphenation (like backen -> bak-ken or + Stoffarbe -> Stoff-farbe in the old german spelling). Exceptions override + the patterns described below. Explicit <hyp> declarations don't work + yet (patches welcome). Exceptions are generally a bit brittle, test + carefully.
<patterns> includes whitespace-separated patterns, which are what + drive most hyphenation decisions. The characters in these patterns are + explained as follows: +
- non-numeric characters represent characters in a sub-word to be + evaluated
- the period character (.) represents a word boundary, i.e. either + the beginning or ending of a word
- numeric characters represent a scoring system for indicating the + acceptability of a hyphen in this location. Odd numbers represent an + acceptable location for a hyphen, with higher values overriding lower + inhibiting values. Even numbers indicate an unacceptable location, with + higher values overriding lower values indicating an acceptable position. + A value of zero (inhibiting) is implied when there is no number present. + Generally patterns are constructed so that valuse greater than 4 are rare. + Due to a bug currently patterns with values of 8 and greater don't + have an effect, so don't wonder.
+ Here are some examples from the English patterns file: +
- Knuth (The TeXBook, Appendix H) uses the example hach4, which indicates that it is extremely undesirable to place a hyphen after the substring "hach", for example in the word "toothach-es".
- .leg5e indicates that "leg-e", when it occurs at the beginning of a word, is a very good place to place a hyphen, if one is needed. Words like "leg-end" and "leg-er-de-main" fit this pattern.
+ Note that the algorithm that uses this data searches for each of the word's substrings in the patterns, and chooses the highest value found for letter combination. +

If you want to convert a TeX hyphenation pattern file, you have to undo + the TeX encoding for non-ASCII text. FOP uses Unicode, and the patterns + must be proper Unicode too. You should be aware of the XML encoding issues, + preferably use a good Unicode editor.

Note that FOP does not do Unicode character normalization. If you use + combining chars for accents and other character decorations, you must + declare character classes for them, and use the same sequence of base character + and combining marks in the XSLFO source, otherwise the pattern wouldn't match. + Fortunately, Unicode provides precomposed characters for all important cases + in common languages, until now nobody run seriously into this issue. Some dead + languages and dialects, especially ancient ones, may pose a real problem + though.

If you want to generate your own patterns, an open-source utility called + patgen can be used to assist in creating pattern files from dictionaries. + It is available in many Unix/Linux distributions and every TeX distribution. + Pattern creation for languages like english or german is an art. Read + Frank Liang's original paper "Word + Hy-phen-a-tion by Com-pu-ter" (yes, with hyphens) for details. + The original patgen.web source, included in the TeX source distributions, + contains valuable comments, unfortunately technical details often obscure the + high level issues. Another important source of information is + The + TeX Book, appendix H (either read the TeX source, or run it through + TeX to typeset it). Secondary articles, for example the works by Petr Sojka, + may also give some much needed insight into problems arising in automated + hyphenation.

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/index.xml b/src/documentation/content/xdocs/1.1rc1/index.xml new file mode 100644 index 000000000..0b5f58215 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/index.xml @@ -0,0 +1,55 @@ + + + + + +

+ Apache™ FOP Version 1.1rc1 + $Revision$ +

+ +

+ Introduction +

+ This is Release Candidate 1 (rc1) of an upcoming minor (dot) release of FOP. FOP 1.1rc1 contains many bux + fixes and a number of improvements, including + important features such as support for Complex Scripts + (e.g., Arabic, Hebrew, Indic, and Southeast Asian scripts). To see what has changed since the last release, + please visit Release Notes. +

+ This release implements a substantial subset of the W3C XSL-FO 1.1 + Recommendation. For a detailed overview of FOP's + compliance with this recommendation, see Compliance. +

+ Upgrading from an earlier version +

+ If you're upgrading to this version from an earlier version of FOP, please read the + information on Upgrading! +

+ Download +

+ To download this version, please visit Downloading. +

+ + diff --git a/src/documentation/content/xdocs/1.1rc1/intermediate.xml b/src/documentation/content/xdocs/1.1rc1/intermediate.xml new file mode 100644 index 000000000..171ae4e6a --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/intermediate.xml @@ -0,0 +1,331 @@ + + + + + +

+ Apache™ FOP: Intermediate Format + $Revision$ +

+ + + Please note that the intermediate formats described here are + advanced features and can be ignored by most users of Apache FOP. + +

+ Introduction +

+ Apache™ FOP now provides two different so-called intermediate formats. The first one + (let's call it the area tree XML format) is basically a 1:1 XML representation of FOP's + area tree as generated by the layout engine. The area tree is conceptually defined in the + XSL-FO specification in chapter 1.1.2. + Even though the area tree is mentioned in the XSL-FO specification, this part is not + standardized. Therefore, the area tree XML format is a FOP-proprietary XML file format. + The area tree XML can be generated through the area tree XML Renderer (the XMLRenderer). +

+ The second intermediate format (which we shall name exactly like this: the intermediate + format) + is a recent addition which tries to meet a slightly different set of goals. It is highly + optimized for speed. +

+ The intermediate format can be used to generate intermediate documents that are modified + before they are finally rendered to their ultimate output format. Modifications include + adjusting and changing trait values, adding or modifying area objects, inserting prefabricated + pages, overlays, imposition (n-up, rotation, scaling etc.). Multiple IF files can be combined + to a single output file. +

+ Which Intermediate Format to choose? +

+ Both formats have their use cases, so the choice you will make will depend on your + particular situation. Here is a list of strengths and use cases for both formats: +

+ Area Tree XML (AT XML) +

1:1 representation of FOP's area tree in XML.
Contains more structure information than the new intermediate format.
Used in FOP's layout engine test suite for regression testing.

+ Intermediate Format (IF) +

Highly optimized for speed.
Smaller XML files.
Easier to post-process.
XML Schema is available.
+ Recommended for use cases where documents are formatted concurrently and later + concatenated to a single print job. +

+ More technical information about the two formats can be found on the + FOP Wiki. +

+ Architectural Overview +

+ Usage of the Area Tree XML format (AT XML) +

+ As already mentioned, the area tree XML format is generated by using the + XMLRenderer (MIME type: application/X-fop-areatree). + So, you basically set the right MIME type for the output format and process your FO files + as if you would create a PDF file. +

+ However, there is an important detail to consider: The + various Renderers don't all use the same font sources. To be able to create the right + area tree for the ultimate output format, you need to create the area tree XML file using + the right font setup. This is achieved by telling the XMLRenderer to mimic another + renderer. This is done by calling the XMLRenderer's mimicRenderer() method with an + instance of the ultimate target renderer as the single parameter. This has a consequence: + An area tree XML file rendered with the Java2DRenderer may not look as expected when it + was actually generated for the PDF renderer. For renderers that use the same font setup, + this restriction does not apply (PDF and PS, for example). Generating the area tree XML + format file is the first step. +

+ The second step is to reparse the file using the AreaTreeParser which is + found in the org.apache.fop.area package. The pages retrieved from the area tree XML file + are added to an AreaTreeModel instance from where they are normally rendered using one of + the available Renderer implementations. You can find examples for the area tree XML + processing in the + examples/embedding + directory in the FOP distribution. +

+ The basic pattern to parse the area tree XML format looks like this: +

+ +

+ This example simply reads an area tree file and renders it to a PDF file. Please note, that in normal + FOP operation you're shielded from having to instantiate the FontInfo object yourself. This + is normally a task of the AreaTreeHandler which is not present in this scenario. The same + applies to the AreaTreeModel instance, in this case an instance of a subclass called + RenderPagesModel. RenderPagesModel is ideal in this case as it has very little overhead + processing the individual pages. An important line in the example is the call to + endDocument() on the AreaTreeModel. This lets the Renderer know that the processing + is now finished. +

+ The area tree XML format can also be used from the command-line + by using the "-atin" parameter for specifying the area tree XML as input file. You can also + specify a "mimic renderer" by inserting a MIME type between "-at" and the output file. +

+ Concatenating Documents +

+ This initial example is obviously not very useful. It would be faster to create the PDF file + directly. As the ExampleConcat.java + example shows you can easily parse multiple area tree files in a row and add the parsed pages to the + same AreaTreeModel instance which essentially concatenates all the input document to one single + output document. +

+ Modifying Documents +

+ One of the most important use cases for this format is obviously modifying the area + tree XML before finally rendering it to the target format. You can easily use XSLT to process + the AT XML file according to your needs. Please note, that we will currently not formally describe + the area tree XML format. You need to have a good understanding its structure so you don't + create any non-parseable files. We may add an XML Schema and more detailed documentation at a + later time. You're invited to help us with that. +

+ + The area tree XML format is sensitive to changes in whitespace. If you're not careful, + the modified file may not render correctly. + +

+ Advanced Use +

+ The generation of the area tree format as well as it parsing process has been designed to allow + for maximum flexibility and optimization. Please note that you can call setTransformerHandler() on + XMLRenderer to give the XMLRenderer your own TransformerHandler instance in case you would like to + do custom serialization (to a W3C DOM, for example) and/or to directly modify the area tree using + XSLT. The AreaTreeParser on the other side allows you to retrieve a ContentHandler instance where + you can manually send SAX events to to start the parsing process (see getContentHandler()). +

+ Usage of the Intermediate Format (IF) +

+ The Intermediate Format (IF) is generated by the IFSerializer + (MIME type: application/X-fop-intermediate-format). + So, you basically set the right MIME type for the output format and process your FO files + as if you would create a PDF file. +

+ The IFSerializer is an implementation of the IFDocumentHandler and + IFPainter interfaces. The IFRenderer class is responsible + for converting FOP's area tree into calls against these two interfaces. +

+ IFDocumentHandler: This interface is used on the document-level and defines the + overall structure of the Intermediate Format. +
+ IFPainter: This interface is used to generate graphical page content like text, images + and borders. +

+ As with the AT XML, there is an important detail to consider: The various output + implementations don't all use the same font sources. To be able + to create the right IF for the ultimate output file, you need to create the IF file using + the right font setup. This is achieved by telling the IFRenderer (responsible for + converting the area tree into calls to the IFDocumentHandler and IFPainter interfaces) + to mimic another renderer. This is done by calling the IFSerializer's + mimicDocumentHandler() method with an instance of the ultimate target document handler + as the single parameter. This has a consequence: An IF file rendered with the + Java2DDocumentHandler may not look as expected when it was actually generated for the PDF + implementation. For implementations that use the same font setup, + this restriction does not apply (PDF and PS, for example). Generating the Intermediate + Format file is the first step. +

+ The second step is to reparse the file using the IFParser which is + found in the org.apache.fop.render.intermediate package. The IFParser simply takes an + IFDocumentHandler instance against which it generates the appropriate calls. The IFParser + is implemented as a SAX ContentHandler so you're free to choose the method for + post-processing the IF file(s). You can use XSLT or write SAX- or DOM-based code to + manipulate the contents. You can find examples for the Intermediate Format + processing in the + examples/embedding + directory in the FOP distribution. +

+ The basic pattern to parse the intermediate format looks like this: +

+ +

+ This example simply reads an intermediate file and renders it to a PDF file. Here + IFParser.parse() is used, but you can also just get a SAX ContentHandler by using the + IFParser.getContentHandler() method. +

+ Concatenating Documents +

+ This initial example is obviously not very useful. It would be faster to create the PDF file + directly (without the intermediate step). As the + ExampleConcat.java + example shows you can easily parse multiple intermediate files in a row and use the + IFConcatenator class to concatenate page sequences from multiple source files to a single + output file. This particular example does the concatenation on the level of the + IFDocumentHandler interface. You could also do this in XSLT or using SAX on the XML level. + Whatever suits your process best. +

+ Modifying Documents +

+ One of the most important use cases for this format is obviously modifying the + intermediate format before finally rendering it to the target format. You can easily use + XSLT to process the IF file according to your needs. +

+ There is an XML Schema (located under + src/documentation/intermediate-format-ng) + that helps you verify that your modified content is correct. +

+ For certain output formats there's a caveat: Formats like AFP and PCL do not support + arbitrary transformations on the IF's "viewport" and "g" elements. Possible are + only rotations in 90 degree steps and translations. +

+ Advanced Use +

+ The generation of the intermediate format as well as it parsing process has been + designed to allow for maximum flexibility and optimization. So rather than just passing + in a StreamResult to IFSerializer's setResult() method, you can also use a SAXResult + or a DOMResult. And as you've already seen , the IFParser on the other side allows you + to retrieve a ContentHandler instance where you can manually send SAX events to + start the parsing process (see getContentHandler()). +

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/known-issues.xml b/src/documentation/content/xdocs/1.1rc1/known-issues.xml new file mode 100644 index 000000000..c0107317d --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/known-issues.xml @@ -0,0 +1,54 @@ + + + + + + Support for Unicode characters outside of the Base Multilingual Plane (BMP), i.e., characters + whose code points are greater than 65535, is not yet implemented. + See bug 51843. + + + The writing-mode property does not produce the expected behavior when specified on + fo:simple-page-master or fo:region-* elements. + See bug 53276. + + + Support for Devanagari and other Indic scripts is not yet complete. + + + Use of Unicode U+200C ZERO WIDTH NON-JOINER (ZWNJ) or U+200D ZERO WIDTH JOINER (ZWJ) + does not prevent or force contextual substitution, respectively, when used with Arabic script. + + + Use of Unicode U+200C ZERO WIDTH NON-JOINER (ZWNJ) or U+200D ZERO WIDTH JOINER (ZWJ) + does not affect conjunct formation or other special behavior prescribed when used with Indic scripts. + + + Support for automatic line breaking at orthographic syllable segment boundaries in Indic + or Southeast Asian scripts is not yet available. In the mean time, use U+200B ZERO WIDTH SPACE (ZWSP). + + + Complex script content is presently supported only with AT, IF, and PDF output formats. + + + When complex script text encounters an fo:inline or fo:character boundary, + contextual substitution and ligature formation will not occur across the boundary. This prevents, + for example, applying a different color to an Arabic Letter within an Arabic word, unless that letter + is a non-joining letter (on both sides). + + diff --git a/src/documentation/content/xdocs/1.1rc1/knownissues_overview.xml b/src/documentation/content/xdocs/1.1rc1/knownissues_overview.xml new file mode 100644 index 000000000..f27f98f32 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/knownissues_overview.xml @@ -0,0 +1,74 @@ + + + + + +

+ Apache™ FOP: Known Issues + $Revision$ +

+ +

+ Known issues +

+ This page lists currently known issues in the current release. +

+ +

+ For additional information on known issues in Apache™ FOP, please have a look at the following pages, too: +

+ +

+ Apache™ FOP has an extensive automated testing infrastructure. Parts of this infrastructure are several + sets of test cases. When a test case is listed in disabled-testcases.xml it is disabled in the JUnit + tests during the normal build process. This indicates a problem in the current codebase. When a bug is + fixed or a missing feature is added the entry for the relevant test case(s) are removed. +

+ FO Tree +

+ This section lists disabled test cases in the test suite for the FO tree tests, at the time + of the release. +

+ +

+ Layout Engine +

+ This section lists disabled test cases in the test suite for the layout engine tests, at the + time of the release. +

+ +

+ Other known issues +

This section lists some other issues that post-date the release of FOP 1.0. For known issues that pre-date FOP 1.0, see + older bugs that remain open. + For all open issues that post-date FOP 1.0, see + newer bugs that remain open. +

+ + +

+ + diff --git a/src/documentation/content/xdocs/1.1rc1/layoutengine/disabled-testcases.xml b/src/documentation/content/xdocs/1.1rc1/layoutengine/disabled-testcases.xml new file mode 100644 index 000000000..5208fa91d --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/layoutengine/disabled-testcases.xml @@ -0,0 +1,223 @@ + + + + + + + + Auto-height block-containers produce fences + block-container_space-before_space-after_3.xml + Block-containers with no height currently don't + create a fence for spaces as they should (they behave like a + normal block). + + + font-stretch NYI + block_font-stretch.xml + Font-stretch is not implemented, yet. + + + linefeed-treatment + block_linefeed-treatment.xml + Preserved linefeeds in a fo:character are not handled + correctly. + + + white-space-treatment + block_white-space-treatment_3.xml + White space handling incorrectly stops at fo:inline + boundaries when it comes to formatter generated line breaks. + + + Empty blocks produce fences + block_space-before_space-after_8.xml + An empty block currently produces a fence for + stacking constraints which it shouldn't. + + + block white-space nbsp 2 + block_white-space_nbsp_2.xml + The nbsp given as an fo:character is not adjustable and therefore + the justification does not work in this case. + + + block word-spacing + block_word-spacing.xml + Word-spacing may not work as expected. + + + block word-spacing text-align justify + block_word-spacing_text-align_justify.xml + Word-spacing may not work as expected. + + + external-graphic don't shrink + external-graphic_oversized.xml + Images currently don't shrink so they fit on a page + when they are too big and shrinking is allowed to + happen (min/opt/max). + + + Test case with HTTP URL + external-graphic_src_uri.xml + Doesn't work behind a proxy which requires + authorization. + + + Space Resolution in foot note area + footnote_space-resolution.xml + Space resolution does not work between footnote + regions. + + + NPE for table inside an inline + inline_block_nested_3.xml + Placing a table as a child of an fo:inline produces a + NullPointerException. + + + inline-container is not implemented, yet. + inline-container_block_nested.xml + inline-container is not implemented, yet. Content of an + inline-container will get swallowed. The test case contains no checks. + + + inline-container is not implemented, yet. + inline-container_border_padding.xml + inline-container is not implemented, yet. Content of an + inline-container will get swallowed. + + + inline letter-spacing + inline_letter-spacing.xml + Letter-spacing may not work as + expected within fo:inline. + + + inline word-spacing + inline_word-spacing.xml + Word-spacing may not work as expected within + fo:inline. + + + inline word-spacing text-align justify + inline_word-spacing_text-align_justify.xml + + + + leader-alignment NYI + leader-alignment.xml + Leader-alignment is not yet + implemented. + + + leader-pattern="use-content": Problem with line height + leader_leader-pattern_use-content_bug.xml + Line height is not correctly calculated for + use-content leaders whose height is larger than the rest of the + line. + http://www.nabble.com/leaders-with-leader-pattern%3D%22use-content%22-t546244.html + + + Page breaking doesn't deal with IPD changes + page-breaking_4.xml + Page breaking currently doesn't support changing available IPD + between pages of a single page-sequence. Element list generation has to be reset to + redetermine line breaks in this case. + + + Overflow handing is incomplete + page-breaking_6.xml + Line breaking is not 100% correct when there's too little space. + Overflows are not detected and warned. + + + Indefinite page height handling is imcomplete + page-height_indefinite_simple.xml + A RuntimeException is thrown for a page of indefinite height. Lots of warnings. + + + page-number-citation: Problem with background-image + page-number-citation_background-image.xml + Background-images on page-number-citations are not + placed correctly. + + + IDs are not working on all FO elements + page-number-citation_complex_1.xml + The "id" attributes are not properly handled for all block-level FO elements. + + + IDs are not working on all FO elements + page-number-citation_complex_2.xml + The "id" attributes are not properly handled for all inline-level FO elements. + + + Footnotes in multi-column documents + region-body_column-count_footnote.xml + Footnotes may overlap with text of the region-body in + multi-column documents. + + + Column Balancing problems + region-body_column-count_balance_4col.xml + Situation in a 4-column document where the column balancing doesn't work and even causes some + content to disappear. + + + Column Balancing problems + region-body_column-count_bug36356.xml + Column balancing doesn't work as expected. + + + table-cell empty area with marker.xml + table-cell_empty_area_with_marker.xml + A table-cell producing an empty area does currently not add any markers to a page. + See TODO entry in AreaAdditionUtil. + + + Border conditionality on table + table_border-width_conditionality.xml + The code should be ok, but the test case uses shorthands and therefore + is probably not expressing the indended outcome according to the spec. The test + case should be revisited. + + + Soft hyphen with normal hyphenation enabled + block_shy_linebreaking_hyph.xml + A soft hyphen should be a preferred as break compared to a + normal hyphenation point but is not. + + + Page-keep not respected in multi-column layout + keep_within-page_multi-column_overflow.xml + The block should cause overflow in the + last column on the page, rather than be broken. + + + Block Container Reference Orientation Bug + block-container_reference-orientation_bug36391.xml + An assert is failing + + + Writing mode problems + simple-page-master_writing-mode_rl_region-body_writing-mode-lr.xml + Test erroneously depends upon incorrect implementation of writing-mode trait + derivation on fo:region-*. + + diff --git a/src/documentation/content/xdocs/1.1rc1/metadata.xml b/src/documentation/content/xdocs/1.1rc1/metadata.xml new file mode 100644 index 000000000..5d4185533 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/metadata.xml @@ -0,0 +1,243 @@ + + + + + +

+ Apache™ FOP: Metadata +

+ +

+ Overview +

+ Document metadata is an important tool for categorizing and finding documents. + Various formats support different kinds of metadata representation and to + different levels. One of the more popular and flexible means of representing + document or object metadata is + XMP (eXtensible Metadata Platform, specified by Adobe). + PDF 1.4 introduced the use of XMP. The XMP specification lists recommendation for + embedding XMP metdata in other document and image formats. Given its flexibility it makes + sense to make use this approach in the XSL-FO context. Unfortunately, unlike SVG which + also refers to XMP, XSL-FO doesn't recommend a preferred way of specifying document and + object metadata. Therefore, there's no portable way to represent metadata in XSL-FO + documents. Each implementation does it differently. +

+ Embedding XMP in an XSL-FO document +

+ As noted above, there's no officially recommended way to embed metadata in XSL-FO. + Apache™ FOP supports embedding XMP in XSL-FO. Currently, only support for document-level + metadata is implemented. Object-level metadata will be implemented when there's + interest. +

+ Document-level metadata can be specified in the fo:declarations element. + XMP specification recommends to use x:xmpmeta, rdf:RDF, and + rdf:Description elements as shown in example below. Both + x:xmpmeta and rdf:RDF elements are recognized as the top-level + element introducing an XMP fragment (as per the XMP specification). +

+ Example + + + + + + + Document title + Document author + Document subject + + + + Tool used to make the PDF + + + + + + + fo:declarations must be declared after + fo:layout-master-set and before the first page-sequence. + +

+ Implementation in Apache FOP +

+ Currently, XMP support is only available for PDF output. +

+ Originally, you could set some metadata information through FOP's FOUserAgent by + using its set*() methods (like setTitle(String) or setAuthor(String). These values are + directly used to set value in the PDF Info object. Since PDF 1.4, adding metadata as an + XMP document to a PDF is possible. That means that there are now two mechanisms in PDF + that hold metadata. +

+ Apache FOP now synchronizes the Info and the Metadata object in PDF, i.e. when you + set the title and the author through the FOUserAgent, the two values will end up in + the (old) Info object and in the new Metadata object as XMP content. If instead of + FOUserAgent, you embed XMP metadata in the XSL-FO document (as shown above), the + XMP metadata will be used as-is in the PDF Metadata object and some values from the + XMP metadata will be copied to the Info object to maintain backwards-compatibility + for PDF readers that don't support XMP metadata. +

+ The mapping between the Info and the Metadata object used by Apache FOP comes from + the PDF/A-1 specification. + For convenience, here's the mapping table: +

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Document information dictionary		XMP
Entry	PDF type	Property	XMP type	Category
Title	text string	dc:title	Text	External
Author	text string	dc:creator	seq Text	External
Subject	text string	dc:description["x-default"]	Text	External
Keywords	text string	pdf:Keywords	Text	External
Creator	text string	xmp:CreatorTool	Text	External
Producer	text string	pdf:Producer	Text	Internal
CreationDate	date	xmp:CreationDate	Date	Internal
ModDate	date	xmp:ModifyDate	Date	Internal

+ + "Internal" in the Category column means that the user should not set this value. + It is set by the application. + + + The "Subject" used to be mapped to dc:subject in the initial publication of + PDF/A-1 (ISO 19005-1). In the + Technical Corrigendum 1 + this was changed to map to dc:description["x-default"]. + +

+ Namespaces +

+ Metadata is made of property sets where each property set uses a different namespace URI. +

+ The following is a listing of namespaces that Apache FOP recognizes and acts upon, + mostly to synchronize the XMP metadata with the PDF Info dictionary: +

+ + + + + + + + + + + + + + + + + + + + + +

Set/Schema	Namespace Prefix	Namespace URI
Dublin Core	dc	http://purl.org/dc/elements/1.1/
XMP Basic	xmp	http://ns.adobe.com/xap/1.0/
Adobe PDF Schema	pdf	http://ns.adobe.com/pdf/1.3/

+ Please refer to the XMP Specification + for information on other metadata namespaces. +

+ Property sets (Namespaces) not listed here are simply passed through to the final + document (if supported). That is useful if you want to specify a custom metadata + schema. +

+ Links +

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/output.xml b/src/documentation/content/xdocs/1.1rc1/output.xml new file mode 100644 index 000000000..cabbbb0fa --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/output.xml @@ -0,0 +1,1401 @@ + + + + + + +

+ Apache™ FOP Output Formats + $Revision$ + + + + +

+ + +

+ Apache™ FOP supports multiple output formats by using a different renderer for each format. + The renderers do not all have the same set of capabilities, sometimes because of + the output format itself, sometimes because some renderers get more development + attention than others. +

+ General Information +

+ Fonts +

+ Most FOP renderers use a FOP-specific system for font registration. + However, the Java2D/AWT and print renderers use the Java AWT package, which gets its + font information from the operating system registration. + This can result in several differences, including actually using different fonts, + and having different font metrics for the same font. + The net effect is that the layout of a given FO document can be quite different between + renderers that do not use the same font information. +

+ Theoretically, there's some potential to make the output of the PDF/PS renderers match + the output of the Java2D-based renderers. If FOP used the font metrics from its own + font subsystem but still used Java2D for text painting in the Java2D-based renderers, + this could probably be achieved. However, this approach hasn't been implemented, yet. +

+ With a work-around, it is possible to match the PDF/PS output in a Java2D-based + renderer pretty closely. The clue is to use the + intermediate format. The trick is to layout the + document using FOP's own font subsystem but then render the document using Java2D. + Here are the necessary steps (using the command-line): +

+ Produce an IF file: fop -fo myfile.fo -at application/pdf myfile.at.xml
+ Specifying "application/pdf" for the "-at" parameter causes FOP to use FOP's own + font subsystem (which is used by the PDF renderer). Note that no PDF file is created + in this step. +
Render to a PDF file: fop -atin myfile.at.xml -pdf myfile.pdf
Render to a Java2D-based renderer: +
- fop -atin myfile.at.xml -print
- fop -atin myfile.at.xml -awt
- fop -atin myfile.at.xml -tiff myfile.tiff
+

+ Output to a Printer or Other Device +

+ The most obvious way to print your document is to use the FOP + print renderer, which uses the Java2D API (AWT). + However, you can also send output from the Postscript renderer directly to a Postscript + device, or output from the PCL renderer directly to a PCL device. +

+ Here are Windows command-line examples for Postscript and PCL: +

+ + +

+ Here is some Java code to accomplish the task in UNIX: +

+ +

+ Set the output MIME type to "application/x-pcl" (MimeConstants.MIME_PCL) and + it happily sends the PCL to the UNIX printer queue. +

+ PDF +

+ PDF is the best supported output format. It is also the most accurate + with text and layout. This creates a PDF document that is streamed out + as each page is rendered. This means that the internal page index + information is stored near the end of the document. + The PDF version supported is 1.4. PDF versions are forwards/backwards + compatible. +

+ Note that FOP does not currently support PDF/A-1a. + Support for Tagged PDF, PDF/A-1b + and PDF/X has recently been added, however. +

+ Fonts +

+ PDF has a set of fonts that are always available to all PDF viewers; + to quote from the PDF Specification: + + "PDF prescribes a set of 14 standard fonts that can be used without prior + definition. + These include four faces each of three Latin text typefaces (Courier, + Helvetica, and Times), as well as two symbolic fonts (Symbol and ITC Zapf + Dingbats). These fonts, or suitable substitute fonts with the same metrics, are + guaranteed to be available in all PDF viewer applications." +

+ Post-processing +

+ FOP does not currently support several desirable PDF features: watermarks and signatures. + One workaround is to use Adobe Acrobat (the full version, not the Reader) to process + the file manually or with scripting that it supports. +

+ Another popular post-processing tool is iText, + which has tools for adding security features, document properties, watermarks, and many + other features to PDF files. +

+ + Caveat: iText may swallow PDF bookmarks. But + Jens Stavnstrup tells us + that this doesn't happen if you use iText's PDFStamper. + +

+ Here is some sample code that uses iText to encrypt a FOP-generated PDF. (Note that FOP now + supports PDF encryption. However the principles for using + iText for other PDF features are similar.) +

+ +

+ Check the iText tutorial and documentation for setting access flags, password, + encryption strength and other parameters. +

+ Watermarks +

+ In addition to the PDF Post-processing options, consider the following workarounds: +

+ Use a background image for the body region. +
+ (submitted by Trevor Campbell) Place an image in a + region that overlaps the flowing text. For example, make + region-before large enough to contain your image. Then include a + block (if necessary, use an absolutely positioned block-container) + containing the watermark image in the static-content for the + region-before. Note that the image will be drawn on top of the + normal content. +

+ Extensions +

The PDF Renderer supports some PDF specific extensions which can be embedded + into the input FO document. To use the extensions the appropriate namespace must + be declared in the fo:root element like this:

+ + ]]> +

+ Embedded Files +

+ It is possible to attach/embed arbitrary files into a PDF file. You can give a name and + a description of the file. Example: +

+ + + + + ]]> +

+ pdf:embedded-file must be a child of fo:declarations. + The "src" property is used to reference the file that is to be embedded. This property + uses the "uri-specification" datatype from the XSL-FO specification. + The "filename" property is optional. If it is missing the filename is automatically set + from the URI/IRI of the "src" property. An optional description can also be added to + further describe the file attachment. +

+ It is also possible to reference an embedded file from an fo:basic-link. + Use the special "embedded-file:" URI scheme with the filename as single argument after + the URI scheme. Example: +

+ Attached Image +]]> +

+ Note: Not all PDF Viewers (including some Acrobat Versions) will open the embedded file + when clicking on the link. In that case, the user will have to open he attachment via + the separate list of file attachments. +

+ PostScript +

+ The PostScript renderer has been brought up to a similar quality as the + PDF renderer, but may still be missing certain features. It provides good + support for most text and layout. + Images and SVG are not fully supported, yet. Currently, the PostScript + renderer generates PostScript Level 3 with most DSC comments. Actually, + the only Level 3 features used are the FlateDecode and DCTDecode + filter (the latter is used for 1:1 embedding of JPEG images), everything + else is Level 2. +

+ Configuration +

+ The PostScript renderer configuration currently allows the following settings: +

+ + false + 3 + false + false + true + quality +]]> +

+ The default value for the "auto-rotate-landscape" setting is "false". Setting it + to "true" will automatically rotate landscape pages and will mark them as landscape. +

+ The default value for the "language-level" setting is "3". This setting specifies + the PostScript language level which should be used by FOP. Set this to "2" + only if you don't have a Level 3 capable interpreter. +

+ The default value for the "optimize-resources" setting is "false". Setting it + to "true" will produce the PostScript file in two steps. A temporary file will be + written first which will then be processed to add only the fonts which were really + used and images are added to the stream only once as PostScript forms. This will + reduce file size but can potentially increase the memory needed in the interpreter + to process. +

+ The default value for the "safe-set-page-device" setting is "false". Setting it + to "true" will cause the renderer to invoke a postscript macro which guards against + the possibility of invalid/unsupported postscript key/values being issued to the + implementing postscript page device. +

+ The default value for the "dsc-compliant" setting is "true". Setting it + to "false" will break DSC compliance by minimizing the number of setpagedevice + calls in the postscript document output. This feature may be useful when unwanted + blank pages are experienced in your postscript output. This problem is caused by + the particular postscript implementation issuing unwanted postscript subsystem + initgraphics/erasepage calls on each setpagedevice call. +

+ The default value for the "rendering" setting is "quality". Setting it to "size" + optimizes rendering for smaller file sizes which can involve minor compromises in + rendering quality. For example, solid borders are then painted as plain rectangles + instead of the elaborate painting instructions required for mixed-color borders. +

+ Limitations +

Images and SVG may not be displayed correctly. SVG support is far from being complete. No image transparency is available.
Only Type 1 fonts are supported.
Multibyte characters are not supported.
PPD support is still missing.

+ PCL +

+ This format is for the Hewlett-Packard PCL printers and other printers + supporting PCL. It should produce output as close to identical as possible + to the printed output of the PDFRenderer within the limitations of the + renderer, and output device. +

+ The output created by the PCLRenderer is generic PCL 5, HP GL/2 and PJL. + This should allow any device fully supporting PCL 5 to be able to + print the output generated by the PCLRenderer. PJL is used to control the + print job and switch to the PCL language. PCL 5 is used for text, raster + graphics and rectangular fill graphics. HP GL/2 is used for more complex + painting operations. Certain painting operations are done off-screen and + rendered to PCL as bitmaps because of limitations in PCL 5. +

+ References +

+ Limitations +

+ Text or graphics outside the left or top of the printable area are not + rendered properly. This is a limitation of PCL, not FOP. In general, + things that should print to the left of the printable area are shifted + to the right so that they start at the left edge of the printable area. +
+ The Helvetica and Times fonts are not well supported among PCL printers + so Helvetica is mapped to Arial and Times is mapped to Times New. This + is done in the PCLRenderer, no changes are required in the FO's. The + metrics and appearance for Helvetica/Arial and Times/Times New are + nearly identical, so this has not been a problem so far. +
For the non-symbol fonts, the ISO 8859-1 symbol set is used (PCL set "0N").
+ All fonts available to the Java2D subsystem are usable. The texts are + painted as bitmap much like the Windows PCL drivers do. +
Multibyte characters are not supported.
+ At the moment, only monochrome output is supported. PCL5c color extensions + will only be implemented on demand. Color and grayscale images are converted + to monochrome bitmaps (1-bit). Dithering only occurs if the JAI image library + is available. +
+ Images are scaled up to the next resolution level supported by PCL (75, + 100, 150, 200, 300, 600 dpi). For color and grayscale images an even + higher PCL resolution is selected to give the dithering algorithm a chance + to improve the bitmap quality. +
+ Currently, there's no support for clipping and image transparency, largely + because PCL 5 has certain limitations. +

+ Configuration +

+ The PCL renderer configuration currently allows the following settings: +

+ + quality + bitmap + false +]]> +

+ The default value for the "disable-pjl" setting is "false". This means that + the PCL renderer usually generates PJL commands before and after the document + in order to switch a printer into PCL language. PJL commands can be disabled + if you set this value to "true". +

+ You can control the output resolution for the PCL using the "target resolution" + setting on the FOUserAgent. The actual value will be rounded up to the next + supported PCL resolution. Currently, only 300 and 600 dpi are supported which + should be enough for most use cases. Note that this setting directly affects + the size of the output file and the print quality. +

+ Extensions +

The PCL Renderer supports some PCL specific extensions which can be embedded + into the input FO document. To use the extensions the appropriate namespace must + be declared in the fo:root element like this:

+ +]]> +

+ Page Source (Tray selection) +

+ The page-source extension attribute on fo:simple-page-master allows to + select the paper tray the sheet for a particular simple-page-master is + to be taken from. Example: +

+ + + ... + + +]]> +

+ Note: the tray number is a positive integer and the value depends on + the target printer. Not all PCL printers support the same paper trays. + Usually, + "1" is the default tray, + "2" is the manual paper feed, + "3" is the manual envelope feed, + "4" is the "lower" tray and + "7" is "auto-select". + Consult the technical reference for your printer for all available values. +

+ Output Bin +

+ The output-bin extension attribute on fo:simple-page-master allows to + select the output bin into which the printed output should be fed. Example: +

+ + + ... + + +]]> +

+ Note: the output bin number is a positive integer and the value depends on + the target printer. Not all PCL printers support the same output bins. + Usually, + "1" is the upper output bin, + "2" is the lower (rear) output bin. + Consult the technical reference for your printer for all available values. +

+ Page Duplex Mode +

+ The duplex-mode extension attribute on fo:simple-page-master allows to + select the duplex mode to be used for a particular simple-page-master. + Example: +

+ + + ... + + +]]> +

+ Note: the duplex is a positive integer and the value depends on + the target printer. Not all PCL printers support duplexing. + Usually, + "0" is simplex, + "1" is duplex (long-edge binding), + "2" is duplex (short-edge binding). + + Consult the technical reference for your printer for all available values. +

+ AFP +

+ The FOP AFP Renderer deals with creating documents conforming to the IBM AFP document architecture + also refered to as MO:DCA (Mixed Object Document Content Architecture). +

+ The mapping of XSL-FO elements to the major MO:DCA structures is as follows: +

+ + + + + + + + + + + + + + + + + +

XSL-FO element	MO:DCA-P object
fo:root	Document
fo:page-sequence	Page Group
fo:simple-page-master	Page

+ FOP creates exactly one Document per Printfile with an optional Resource Group at the + beginning. FOP does not create document indices. +

+ References +

+ Limitations +

This list is most likely badly incomplete.

+ Clipping of text and graphics is not supported. +
+ Only IBM outline and raster fonts and to a limited extend the original fonts built into FOP are supported. + Support for TrueType fonts may be added later. +

+ Deployment in older environments +

+ There are still a big number of older (or limited) MO:DCA/IPDS environments in production + out there. AFP has grown in functionality over time and not every environment supports the + latest features. We're trying to make AFP output work in as many environments as possible. + However, to make AFP output work on older environments it is recommended to set to + configuration to 1 bit per pixel (see below on how to do this). In this case, all images + are converted to bi-level images using IOCA function set 10 (FS10) and are enclosed in + page-segments since some implementation cannot deal with IOCA objects directly. + If a higher number of bits per pixel is configured, FOP has to switch to at least FS11 + which may not work everywhere. +

+ Configuration +

+ Fonts +

The AFP Renderer requires special configuration particularly related to fonts. + AFP Render configuration is done through the normal FOP configuration file. The MIME type + for the AFP Renderer is application/x-afp which means the AFP Renderer section in the FOP configuration file + looks like:

+ + + ... +]]> +

There are 4 font configuration variants supported:

IBM Raster fonts
IBM Outline fonts
IBM CID-keyed (Type 0) fonts
FOP built-in Base14 fonts

A typical raster font configuration looks like:

+ + + + + + + + + + + + + + + + + + + + + + + + ]]> +

An outline font configuration is simpler as the individual font size entries are not required. + However, the characterset definition is now required within the afp-font element.

+ + + + + + +]]> +

+ If "base-uri" is missing or a relative URI, the fonts are resolved relative to + the font base URI specified in the configuration (or on the FopFactory). +

+ + Previously, the location of the font files was given by the "path" attribute. This is still + supported for the time being, but you should move to using the more flexible "base-uri" + attribute so you can profit from the power of URI resolvers. + +

A CID-keyed font (Type 0, double-byte outline font) configuration is much the same as an outline font. + However, the characterset definition is now required within the afp-font element.

+ + + + +]]> +

+Note that the value of the encoding attribute in the example is the double-byte encoding 'UnicodeBigUnmarked' (UTF-16BE). +

Experimentation has shown that the font metrics for the FOP built-in Base14 fonts are actually + very similar to some of the IBM outline and raster fonts. In cases were the IBM font files are not + available the base-uri attribute in the afp-font element can be replaced by a base14-font attribute + giving the name of the matching Base14 font. In this case the AFP Renderer will take the + font metrics from the built-in font.

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ]]> +

+ By default, all manually configured fonts are embedded, unless they are matched in the + referenced-fonts section of the configuration file. + However, the default fonts shown above will not be embedded. +

+ For double byte EBCDIC encoded character sets, there is an optional tag that must be set to prevent + characters from being miscoded. This defaults to "false" if not specified.

+ ]]> + +

+ Output Resolution +

By default the AFP Renderer creates output with a resolution of 240 dpi. + This can be overridden by the <renderer-resolution/> configuration element. Example:

+ 240]]> +

+ Line Width Correction +

The default line width in AFP is device dependent. This means that a line width specified in, say, + a SVG source file may not render the way it was intended. The output AFP line with can be corrected + by the <line-width-correction/> configuration element. Example:

+ 2.5]]> +

+ Images +

By default the AFP Renderer converts all images to 8 bit grey level. + This can be overridden by the <images/> configuration element. Example:

+ +]]> +

This will put images as RGB images into the AFP output stream. The default setting is:

+ +]]> +

Only the values "color" and "b+w" are allowed for the mode attribute.

The bits-per-pixel attribute is ignored if mode is "color". For "b+w" mode is must be 1, 4, or 8.

+ +]]> +

When the native attribute is specified and set to "true", all image resources will be natively injected + into the datastream using an object container rather than being converted into an IOCA FS45 image. + Support for native image formats (e.g. JPEG, TIFF, GIF) is not always available on printer implementations + so by default this configuration option is set to "false".

+ Setting cmyk="true" on the images element will enable CMYK + colors. This will only have an effect if the color mode is set to "color". Example: +

+ ]]> +

+ When the color mode is set to 1 bit (bi-level), the "dithering-quality" attribute can + be used to select the level of quality to use when converting images to bi-level images. + Valid values for this attribute are floating point numbers from 0.0 (fastest) to + 1.0 (best), or special values: "minimum" (=0.0), "maximum" (1.0), + "medium" (0.5, the default). For the higher settings to work as expected, JAI needs to + be present in the classpath. If JAI is present, 0.0 results in a minimal darkness-level + switching between white and black. 0.5 does bayer-based dithering and 1.0 will use + error-diffusion dithering. The higher the value, the higher the quality and the slower + the processing of the images. +

+ ]]> +

+ When the boolean attribute pseg (default false) is set to true, non-inline FS11 and FS45 IOCA images are wrapped in page segment. + This option is provided to support printers/print servers that require this MO:DCA structure. +

+ ]]> +

+ Setting the boolean attribute fs45 to true (default false) will force all images to FS45. +

+ ]]> +

+ By default, JPEG images are rasterized to a bitmap and the bitmap is included in the AFP doc. + However it is possible to encode in a lossless way to maintain maximum quality. But due + to lack of support for compression schemes like LZW (patent concerns), bitmap data is currently + not compressed resulting in large AFP files. Using the "allow-embedding" attribute on jpeg child + element allows the user to pass the JPEG as is in the document. The default is set to "false" since + there are compatibility concerns as some AFP printers don't support JPEG decoding. Using the + "bitmap-encoding-quality" attribute it is possible to enable lossy compression (JPEG baseline + DCT). The default is "1.0" which means lossless encoding. Setting a value lower than 1.0, JPEG + compression is enabled and the setting is used as the quality setting when encoding bitmap data. + Note that this setting does not always have an effect. Bi-level (1 bit) bitmaps are not compressed + using JPEG. Example: +

+ + + ]]> +

+ GOCA (Vector Graphics) +

+ Not all AFP implementations support GOCA. Some also have bugs related to GOCA. Therefore, + it is desirable to have some control over the generation of GOCA graphics. +

+ GOCA is enabled by default. You can disable GOCA entirely in which case the AFP support + falls back to generating bitmaps for vector graphics. Example: +

+ ]]> +

+ Some AFP implementations have trouble rendering text in GOCA. You can instruct the AFP + support to render text as shapes (i.e. use vector graphics to paint text). Example: +

+ ]]> +

+ If you disable GOCA or let text render as shapes, the size of the generated AFP usually + increases considerably. +

+ Shading +

+ By default, filled rectangles are painted using their given color using a PTOCA I-axis rule + (DIR). But not all environments handle these colors correctly. That's why a setting is + supported that paints the rectangles using an ordered dither pattern (bi-level) with + an inline IOCA FS10 image that is used together with the "replicate and trim" mapping. + The optional "shading" element can be used to control the shading mode. Its default value + is "color". To enable the dithered mode, use "dithered". Example: +

+ dithered +]]> +

+ Resource Group File +

By default the AFP Renderer will place all data resource objects such as images within + the document of the main output datastream. An external resource group file where document resources + may be specified with the <resource-group-file/> configuration element. Example:

+ external_resources.afp +]]> + Be careful when using this option not to overwrite existing resource files from previous rendering runs. +

+ Resource Level Defaults +

+ By default, bitmap image objects (or page segments derived from them) are put in the + print-file-level resource group and GOCA graphics are inlined for compatibility with + the AFP Workbench tool. +

+ It is possible to override these defaults, either per image (see the + afp:resource-level + extension attribute below) or by specifying different defaults in the configuration: +

+ ]]> +

+ "goca" refers to GOCA graphics and "bitmap" refers to IOCA images. The possible values + for the attributes are "inline" and "print-file". In the future, + additional possibilities may be added. +

+ Extensions +

The AFP Renderer supports some AFP specific extensions which can be embedded into the input + fo document. To use the extensions the appropriate namespace must be declared in the fo:root element like this:

+ +]]> +

+ Page Overlay (IPO) Extension +

The include-page-overlay extension element allows to define on a per simple-page-master basis a page overlay resource. Example:

+ + + + ... + + +]]> +

The mandatory name attribute must refer to an 8 character (space padded) resource name that + must be known in the AFP processing environment. Optional x and y attributes can be specified + to place the Overlay at an offset from the top left of the page.

+ Page Segment (IPS) Extension +

The include-page-segment extension element allows to define resource substitution for fo:external-graphics elements. + Example:

+ + + + + + + +]]> +

The include-page-segment extension element can only occur within a simple-page-master. + Multiple include-page-segment extension elements within a simple-page-master are allowed. + The mandatory name attribute must refer to an 8 character + (space padded) resource name that must be known in the AFP processing environment. + The value of the mandatory src attribute is compared against the value of the src attribute in + fo:external-graphic elements and if it is identical (string matching is used) in the generated + AFP the external graphic is replaced by a reference to the given resource. +

+ The effect here is that whenever FOP encounters the URI specified in the extension, + it will effectively generate code to include the page segment with the given name + instead of embedding the image referenced by the URI. The URI is still required as + the underlying image serves as a provider for the intrinsic size of the image + (At the moment, FOP is unable to extract the intrinsic size of the page segment from + an AFP resource file). For the image to appear in an AFP viewer or to be printed, the + AFP resource must be available on the target device. FOP does not embed the page + segment in the generated file. Please also note that page segments cannot be scaled. + They are always rendered in their intrinsic size. +

+ The include-page-segment extension element has the optional attribute + resource-file. The value of this is a URI to a resource containing a page + segment with the declared name. In this case FOP embeds the page segment into the + generated document so that the external resource does not have to be supplied in the + print job. +

+ Tag Logical Element (TLE) Extension +

The tag-logical-element extension element allows to injects TLEs into the AFP output stream. Example:

+ + + + + + + + [..] + + + + [..] +]]> +

+ The tag-logical-element extension element can appear within a simple-page-master + (page level) or it can appear as child of page-sequence (page group level). + Multiple tag-logical-element extension elements within a simple-page-master or + page-sequence are allowed. The name and value attributes are mandatory. +

+ No Operation (NOP) Extension +

The no-operation extension provides the ability to carry up to 32K of comments or any other type + of unarchitected data into the AFP output stream. Example:

+ + + + insert up to 32k of character data here! + + +]]> +

The no-operation extension element can appear as child of + simple-page-master (appears after "Begin Page" BPG), + page-sequence (appears after "Begin Named Page Group" BNG + and declarations (appears after "Begin Document" BDT). + Multiple no-operation extension elements inside the same formatting object are allowed. + Each NOP will appear right after the respective "Begin" field indicated above even if it + is specified as the last child under its parent. The order inside the parent + will be maintained. + The "placement" attribute can be used to have the NOP appear before + the "End" field of the object rather than after the "Begin" field. Specify + placement="before-end" to do that. Please note that, at the moment, this only + has an effect for NOPs that are children of the page-sequence formatting + object. + The "name" attribute is mandatory but will not appear inside the AFP stream. +

+ Invoke Medium Map (IMM) Extension +

+ The invoke-medium-map extension allows to generate IMM fields (Invoke Medium Map) in the + generated AFP output. Example: +

+ + [..] + + + + [..] +]]> +

+ The invoke-medium-map element is allowed as child of fo:page-sequence (page group + level) or fo:simple-page-master. It is NOT supported on document level (fo:root), yet. + FOP also doesn't support specifying medium maps inside XML (using BMM/EMM). It can + only reference an existing medium map by name. The medium map has to be constructed + through different means and available on the target platform. +

+ Form Maps/Defs +

+ Apache FOP supports embedding an external form map resource in the + generated AFP output. This is done using the afp:include-form-map + extension. An example: +

+ + [..] + + + +]]> +

+ The afp:include-form-map is to be placed as a direct child of + fo:declarations. The name is an AFP resource name + (max. 8 characters) and the src attribute is the URI identifying the + external form map resource. When such a form map is embedded, you can use the + afp:invoke-medium-map extension (described above) to invoke any medium + map included in the form map. +

+ + Apache FOP doesn't support a way to define a form map or medium map using XML means + inside an XSL-FO document. You will have to build the form map with some third-party + tool. + +

+ Foreign Attributes +

+ Resource +

The resource foreign attributes provides the ability to name and control where data object resources + (e.g. images/scalable vector graphics) will reside in the AFP output. + The afp foreign attributes are only used in conjuntion with <fo:external-graphic/> and <instream-foreign-object/>. + Example:

+ + ... + + + + + + + + +]]> +

The resource-level attribute where the resource object will reside in the AFP output datastream. + The possible values for this are "inline", "print-file" and "external". + When "external" is used a resource-group-file attribute must also be specified. + Please refer to the Resource Level Defaults + above to see what is used if the resource-level attribute is not specified. +

+ RTF +

+ JFOR, an open source XSL-FO to RTF converter has been integrated into Apache FOP. + This will create an RTF (rich text format) document that will + attempt to contain as much information from the XSL-FO document as + possible. It should be noted that is not possible (due to RTF's limitations) to map all + XSL-FO features to RTF. For complex documents, the RTF output will never reach the feature + level from PDF, for example. Thus, using RTF output is only recommended for simple documents + such as letters. +

+ The RTF output follows Microsoft's RTF specifications + and produces best results on Microsoft Word. +

+ RTF output is currently unmaintained and lacks many features compared to other output + formats. Using other editable formats like Open Document Format, instead of producing XSL-FO + then RTF through FOP, might give better results. +

+ These are some known restrictions compared to other supported output formats (not a complete list): +

+ Not supported/implemented: +
- break-before/after (supported by the RTF library but not tied into the RTFHandler)
- fo:page-number-citation-last
- keeps (supported by the RTF library but not tied into the RTFHandler)
- region-start/end (RTF limitation)
- multiple columns
+
Only a single page-master is supported
Not all variations of fo:leader are supported (RTF limitation)
percentages are not supported everywhere

+ XML (Area Tree XML) +

+ This is primarily for testing and verification. The XML created is simply + a representation of the internal area tree put into XML. We use that to verify + the functionality of FOP's layout engine. +

+ The other use case of the Area Tree XML is as FOP's "intermediate format". More information + on that can be found on the page dedicated to the Intermediate Format. +

+ Java2D/AWT +

+ The Java2DRenderer provides the basic functionality for all + Java2D-based output formats (AWT viewer, direct print, PNG, TIFF). +

+ The AWT viewer shows a window with the pages displayed inside a + Java graphic. It displays one page at a time. + The fonts used for the formatting and viewing depend on the fonts + available to your JRE. +

+ Print +

+ It is possible to directly print the document from the command line. + This is done with the same code that renders to the Java2D/AWT renderer. +

+ Known issues +

+ If you run into the problem that the printed output is incomplete on Windows: + this often happens to users printing to a PCL printer. + There seems to be an incompatibility between Java and certain PCL printer drivers + on Windows. Since most network-enabled laser printers support PostScript, try + switching to the PostScript printer driver for that printer model. +

+ Bitmap (TIFF/PNG) +

+ It is possible to directly create bitmap images from the individual + pages generated by the layout engine. + This is done with the same code that renders to the Java2D/AWT renderer. +

+ Currently, two output formats are supported: PNG and TIFF. TIFF produces + one file with multiple pages, while PNG output produces one file per + page. Note: FOP can only produce multiple files (with PNG output) if + you can set a java.io.File indicating the primary PNG file + using the FOUserAgent.setOutputFile(File) method. +

+ The quality of the bitmap depends on the target resolution setting + on the FOUserAgent and on further settings described below. +

+ Configuration +

+ The TIFF and PNG renderer configuration currently allows the following settings: +

+ + rgba + true + white + true + quality + +]]> +

+ The default value for the "color-mode" setting is "rgba" which + is equivalent to a 24bit RGB image with an 8bit alpha channel for transparency. + Valid values are: +

rgba: RGB with alpha channel (24bit + 8bit = 32bit)
rgb: RGB (24bit)
gray: gray (8bit)
bi-level (or binary): bi-level (1bit)

+ Please note that there is currently no dithering or error diffusion available for bi-level + bitmap output. +

+ The default value for the "transparent-page-background" setting is + "false" which paints an opaque, white background for the whole image. + If you set this to "true", + no such background will be painted and you will get a transparent image if + an alpha channel is available in the output format. +

+ The default value for the "background-color" setting is "white". + The color specifies in which color the page background is painted. It will only be + painted if "transparent-page-background" is not set to "true". + All XSL-FO colors (including color functions) can be used. +

+ The default value for the "anti-aliasing" setting is "true". + You can set this value to "false" to disable anti-aliasing and + thus improve rendering speeds a bit at the loss of some image quality. +

+ The default value for the "rendering" setting is "true". + You can set this value to "false" to improve rendering speeds a bit + at the loss of some image quality. If this setting has an actual effect depends + on the JVM's Java2D backend. +

+ TIFF-specific Configuration +

+ In addition to the above values the TIFF renderer configuration allows some additional + settings: +

+ + true + CCITT T.6 + +]]> +

+ The default value for the "compression" setting is "PackBits" which + which is a widely supported RLE compression scheme for TIFF. The set of compression + names to be used here matches the set that the Image I/O API uses. Note that + not all compression schemes may be available during runtime. This depends on the + actual codecs being available. Here is a list of possible values: +

NONE (no compression)
PackBits (RLE, run-length encoding)
JPEG
Deflate
LZW
ZLib
CCITT T.4 (Fax Group 3)
CCITT T.6 (Fax Group 4)

+ This setting may override any setting made using the "color-mode". For example, if + "CCITT T.6" is selected, the color mode is automatically forced to "bi-level" because + this compression format only supports bi-level images. +

+ + If you want to use CCITT compression, please make sure you've got + + Java Advanced Imaging Image I/O Tools + + in your classpath. The Sun JRE doesn't come with a TIFF codec built in, so it has to be + added separately. The internal TIFF codec from XML Graphics Commons only supports PackBits, + Deflate and JPEG compression for writing. + +

+ Runtime Rendering Options +

+ The IF-based bitmap output implementations support a rendering option with the key + "target-bitmap-size" (value: java.awt.Dimension) that allows to force the pages to + be proportionally fit into a bitmap of a given size. This can be used to produce + thumbnails or little preview images of the individual pages. An example: +

+ +

+ TXT +

+ The text renderer produces plain ASCII text output + that attempts to match the output of the PDFRenderer as closely as + possible. This was originally developed to accommodate an archive system + that could only accept plain text files, and is primarily useful for getting + a quick-and-dirty view of the document text. The renderer is very limited, + so do not be surprised if it gives unsatisfactory results. +

+ +

+ Because FOP lays the text onto a grid during layout, there are frequently + extra or missing spaces between characters and lines, which is generally + unsatisfactory. + Users have reported that the optimal settings to avoid such spacing problems are: +

font-family="Courier"
font-size="10pt"
line-height="10pt"

+ Output Formats in the Sandbox +

+ Due to the state of certain renderers we moved some of them to a "sandbox" area until + they are ready for more serious use. The renderers and FOEventHandlers in the sandbox + can be found under src/sandbox and are compiled into build/fop-sandbox.jar during the + main build. The output formats in the sandbox are marked as such below. +

+ MIF + The MIF handler is in the sandbox and not yet functional in FOP Trunk!!! Please help us ressurrect this feature. +

+ This format is the Maker Interchange Format which is used by + Adobe Framemaker. +

+ SVG + The SVG renderer is in the sandbox and may not work as expected in FOP Trunk!!! Please help us improve this feature. +

+ This format creates an SVG document that has links between the pages. + This is primarily for slides and creating svg images of pages. + Large documents will create SVG files that are far too large for + an SVG viewer to handle. Since FO documents usually have text the + SVG document will have a large number of text elements. + The font information for the text is obtained from the JVM in the + same way as for the AWT viewer. If the SVG is viewed on a + system where the fonts are different, such as another platform, + then the page may look wrong. +

+ Wish list +

+ Apache FOP is easily extensible and allows you to add new output formats to enhance FOP's functionality. There's a number of output formats + which are on our wish list. We're looking for volunteers to help us implement them. +

+ ODF (Open Document Format): + The standardized successor to OpenOffice's file format. +

+ + + diff --git a/src/documentation/content/xdocs/1.1rc1/pdfa.xml b/src/documentation/content/xdocs/1.1rc1/pdfa.xml new file mode 100644 index 000000000..0b8399121 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/pdfa.xml @@ -0,0 +1,168 @@ + + + + + +

+ Apache™ FOP: PDF/A (ISO 19005) + $Revision$ + + + +

+ +

+ Overview +

+ PDF/A is a standard which turns PDF into an "electronic document file + format for long-term preservation". PDF/A-1 is the first part of the + standard and is documented in + ISO 19005-1:2005(E). + Work on PDF/A-2 is in progress at + AIIM. +

+ Design documentation on PDF/A can be found on FOP's Wiki on the + PDFA1ConformanceNotes page. +

+ Implementation Status +

+ PDF/A-1b is implemented to the degree that FOP supports + the creation of the elements described in ISO 19005-1. +

+ Tests have been performed against jHove and Adobe Acrobat 7.0.7 (Preflight function). + FOP does not validate completely against Apago's PDF Appraiser. Reasons unknown due to + lack of a full license to get a detailed error protocol. +

+ PDF/A-1a is based on PDF-A-1b and adds accessibility features + (such as Tagged PDF). This format is available within the limitation described on + the Accessibility page. +

+ Usage (command line) +

+ To activate PDF/A-1b from the command-line, specify "-pdfprofile PDF/A-1b" + as a parameter. If there is a violation of one of the validation rules for + PDF/A, an error message is presented and the processing stops. +

+ PDF/A-1a is enabled by specifying "-pdfprofile PDF/A-1a". +

+ Usage (embedded) +

+ When FOP is embedded in another Java application you can set a special option + on the renderer options in the user agent to activate the PDF/A-1b profile. + Here's an example: +

+ +

+ If one of the validation rules of PDF/A is violated, an PDFConformanceException + (descendant of RuntimeException) is thrown. +

+ For PDF/A-1a, just use the string "PDF/A-1a" instead of "PDF/A-1b". +

+ PDF/A in Action +

+ There are a number of things that must be looked after if you activate a PDF/A + profile. If you receive a PDFConformanceException, have a look at the following + list (not necessarily comprehensive): +

+ Make sure all (!) fonts are embedded. If you use base 14 fonts (like Helvetica) + you need to obtain a license for them and embed them like any other font. +
+ Don't use PDF encryption. PDF/A doesn't allow it. +
+ Don't use CMYK images without an ICC color profile. PDF/A doesn't allow mixing + color spaces and FOP currently only properly supports the sRGB color space. Please + note that FOP embeds a standard sRGB ICC profile (sRGB IEC61966-2.1) as the + primary output intent for the PDF if no other output intent has been specified + in the configuration. +
+ Don't use non-RGB colors in SVG images. Same issue as with CMYK images. +
+ Don't use EPS graphics with fo:external-graphic. Embedding EPS graphics in PDF + is deprecated since PDF 1.4 and prohibited by PDF/A. +
+ PDF is forced to version 1.4 if PDF/A-1 is activated. +
+ No filter must be specified explicitely for metadata objects. Metadata must be + embedded in clear text so non-PDF-aware applications can extract the XMP metadata. +

+ + There are additional requirements if you want to enabled PDF/A-1a (Tagged PDF). This is + particularly the specification of the natural language and alternative descriptions for + images. Please refer to the Accessibility page for details. + +

+ PDF profile compatibility +

+ The PDF profiles "PDF/X-3:2003" and "PDF/A-1b" (or "PDF/A-1a") are compatible and can + both be activated at the same time. +

+ Interoperability +

+ There has been some confusion about the namespace for the PDF/A indicator in the XMP + metadata. At least three variants have been seen in the wild: +

+ + + + + + + + + + + + + +

http://www.aiim.org/pdfa/ns/id.html	obsolete, from an early draft of ISO-19005-1, used by Adobe Acrobat 7.x
http://www.aiim.org/pdfa/ns/id	obsolete, found in the original ISO 19005-1:2005 document
http://www.aiim.org/pdfa/ns/id/	correct, found in the technical corrigendum 1 of ISO 19005-1:2005

+ If you get an error validating a PDF/A file in Adobe Acrobat 7.x it doesn't mean that + FOP did something wrong. It's Acrobat that is at fault. This is fixed in Adobe Acrobat 8.x + which uses the correct namespace as described in the technical corrigendum 1. +

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/pdfencryption.xml b/src/documentation/content/xdocs/1.1rc1/pdfencryption.xml new file mode 100644 index 000000000..2d8fdfb10 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/pdfencryption.xml @@ -0,0 +1,301 @@ + + + + + +

+ Apache™ FOP: PDF encryption. + $Revision$ + + + + +

+ +

+ Overview +

+ Apache™ FOP supports encryption of PDF output, thanks to Patrick + C. Lankswert. This feature is commonly used to prevent + unauthorized viewing, printing, editing, copying text from the + document and doing annotations. It is also possible to ask the + user for a password in order to view the contents. Note that + there already exist third party applications which can decrypt + an encrypted PDF without effort and allow the aforementioned + operations, therefore the degree of protection is limited. +

+ For further information about features and restrictions regarding PDF + encryption, look at the documentation coming with Adobe Acrobat or the + technical documentation on the Adobe web site. +

+ Usage (command line) +

+ Encryption is enabled by supplying any of the encryption related + options. +

+ An owner password is set with the -o option. This + password is actually used as encryption key. Many tools for + PDF processing ask for this password to disregard any + restriction imposed on the PDF document. +

+ If no owner password has been supplied but FOP was asked to apply some + restrictions, a random password is used. In this case it is obviously + impossiible to disregard restrictions in PDF processing tools. +

+ A user password, supplied with the -u option, will + cause the PDF display software to ask the reader for this password in + order to view the contents of the document. If no user password was + supplied, viewing the content is not restricted. +

+ Further restrictions can be imposed by using the following command-line options: + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Option Description
-noprint disable printing
-nocopy disable copy/paste of content
-noedit disable editing in Adobe Acrobat
-noannotations disable editing of annotations
-nofillinforms disable filling in forms
-noaccesscontent disable text and graphics extraction for accessibility purposes
-noassembledoc disable assembling documents
-noprinthq disable high quality printing
+

Option	Description
`-noprint`	disable printing
`-nocopy`	disable copy/paste of content
`-noedit`	disable editing in Adobe Acrobat
`-noannotations`	disable editing of annotations
`-nofillinforms`	disable filling in forms
`-noaccesscontent`	disable text and graphics extraction for accessibility purposes
`-noassembledoc`	disable assembling documents
`-noprinthq`	disable high quality printing

+ Usage (embedded) +

+ When FOP is embedded in another Java application you need to set an + options map on the renderer. These are the supported options: +

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Option	Description	Values	Default
encryption-length	The encryption length in bit	Any multiple of 8 between 40 and 128	40
ownerPassword	The owner password	String	+
userPassword	The user password	String	+
allowPrint	Allows/disallows printing of the PDF	"TRUE" or "FALSE"	"TRUE"
allowCopyContent	Allows/disallows copy/paste of content	"TRUE" or "FALSE"	"TRUE"
allowEditContent	Allows/disallows editing in Adobe Acrobat	"TRUE" or "FALSE"	"TRUE"
allowEditAnnotations	Allows/disallows editing of annotations	"TRUE" or "FALSE"	"TRUE"
allowFillInForms	Allows/disallows filling in forms	"TRUE" or "FALSE"	"TRUE"
allowAccessContent	Allows/disallows text and graphics extraction for accessibility purposes	"TRUE" or "FALSE"	"TRUE"
allowAssembleDocument	Allows/disallows assembling document	"TRUE" or "FALSE"	"TRUE"
allowPrintHq	Allows/disallows high quality printing	"TRUE" or "FALSE"	"TRUE"

+ + Encryption is enabled as soon as one of these options is set. + +

+ An example to enable PDF encryption in Java code: +

+ +

+ The parameters for the constructor of PDFEncryptionParams are: +

userPassword: String, may be null
ownerPassword: String, may be null
allowPrint: true if printing is allowed
allowCopyContent: true if copying content is allowed
allowEditContent: true if editing content is allowed
allowEditAnnotations: true if editing annotations is allowed
allowFillInForms: true if filling in forms is allowed.
allowAccessContent: true if extracting text and graphics is allowed
allowAssembleDocument: true if assembling document is allowed
allowPrintHq: true if printing to high quality is allowed

+ Alternatively, you can set each value separately in the Map provided by + FOUserAgent.getRendererOptions() by using the following keys: +

user-password: String
owner-password: String
noprint: Boolean or "true"/"false"
nocopy: Boolean or "true"/"false"
noedit: Boolean or "true"/"false"
noannotations: Boolean or "true"/"false"
nofillinforms: Boolean or "true"/"false"
noaccesscontent: Boolean or "true"/"false"
noassembledoc: Boolean or "true"/"false"
noprinthq: Boolean or "true"/"false"

+ Environment +

+ In order to use PDF encryption, FOP has to be compiled with + cryptography support. Currently, only JCE + is supported. JCE is part of JDK 1.4. For earlier JDKs, it can + be installed separately. The build process automatically + detects JCE presence and installs PDF encryption support if + possible, otherwise a stub is compiled in. +

+ Cryptography support must also be present at run time. In particular, a + provider for the RC4 cipher is needed. Unfortunately, the sample JCE + provider in Sun's JDK 1.4 does not provide RC4. If you + get a message saying +

+ "Cannot find any provider supporting RC4" +

+ then you don't have the needed infrastructure. +

+ There are several commercial and a few Open Source packages which + provide RC4. A pure Java implementation is produced by The Legion of the Bouncy + Castle. Mozilla + JSS is an interface to a native implementation. +

+ Installing a crypto provider +

+ The pure Java implementation from Bouncy Castle is easy to + install. +

+ Download the binary distribution for your JDK version. +
+ Unpack the distribution. Add the jar file to your classpath. A + convenient way to use the jar on Linux is to simply drop it into the + FOP lib directory, it will be automatically picked up by + fop.sh. +
+ Open the java.security file and add
+ security.provider.6=org.bouncycastle.jce.provider.BouncyCastleProvider,
+ preferably at the end of the block defining the other crypto + providers. For JDK 1.4 this is detailed on Sun's web site. +

+ If you have any experience with Mozilla JSS or any other + cryptography provider, please post it to the fop-user list. +

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/pdfx.xml b/src/documentation/content/xdocs/1.1rc1/pdfx.xml new file mode 100644 index 000000000..bef2fce2a --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/pdfx.xml @@ -0,0 +1,136 @@ + + + + + +

+ Apache™ FOP: PDF/X (ISO 15930) + $Revision$ + + + +

+ +

+ Overview + + Support for PDF/X is available beginning with version 0.93. This feature is new and + may not be 100% complete, yet. Feedback is welcome. + +

+ PDF/X is a standard which faciliates prepress digital data exchange using PDF. + Currently, only PDF/X-3:2003 is implemented out of the many different flavours of PDF/X + profiles. PDF/X-3:2003 is documented in + ISO 15930-6:2003(E). + More info on PDF/X can be found on the + PDF/X info site. +

+ Implementation Status +

+ PDF/X-3:2003 is implemented to the degree that FOP supports + the creation of the elements described in ISO 15930-6. +

+ An important restriction of the current implementation is that all normal + RGB colors specified in XSL-FO and SVG are left unchanged in the sRGB color + space (XSL-FO and SVG both use sRGB as their default color space). + There's no conversion to a CMYK color space. Although sRGB is a + calibrated color space, its color space has a different size than a CMYK + color space which makes the conversion a lossy conversion and can lead to + unwanted results. Although the use of the calibrated sRGB has been promoted + for years, print shops usually prefer to convert an sRGB PDF to CMYK prior + to production. Until there's full CMYK support in FOP you will have to + work closely with your print service provider to make sure you get the + intended result. +

+ Tests have been performed against Adobe Acrobat 7.0.7 (Preflight function). + Note that there are bugs in Adobe Acrobat which cause false alarms if both + PDF/A-1b and PDF/X-3:2003 are activated at the same time. +

+ Usage (command line) +

+ To activate PDF/X-3:2003 from the command-line, specify "-pdfprofile PDF/X-3:2003" + as a parameter. If there is a violation of one of the validation rules for + PDF/X, an error message is presented and the processing stops. +

+ Usage (embedded) +

+ When FOP is embedded in another Java application you can set a special option + on the renderer options in the user agent to activate the PDF/A-1b profile. + Here's an example: +

+ +

+ If one of the validation rules of PDF/X is violated, an PDFConformanceException + (descendant of RuntimeException) is thrown. +

+ PDF/X in Action +

+ There are a number of things that must be looked after if you activate a PDF/X + profile. If you receive a PDFConformanceException, have a look at the following + list (not necessarily comprehensive): +

+ Make sure all (!) fonts are embedded. If you use base 14 fonts (like Helvetica) + you need to obtain a license for them and embed them like any other font. +
+ Don't use PDF encryption. PDF/X doesn't allow it. +
+ Don't use CMYK images without an ICC color profile. PDF/X doesn't allow mixing + color spaces and FOP currently only properly supports the sRGB color space. However, + you will need to specify an + output device profile + (usually a CMYK profile) in the configuration. sRGB won't work here since it's a + display device profile, not an output device profile. +
+ Don't use non-RGB colors in SVG images. Same issue as with CMYK images. +
+ Don't use EPS graphics with fo:external-graphic. Embedding EPS graphics in PDF + is deprecated since PDF 1.4 and prohibited by PDF/X-3:2003. +
+ PDF is forced to version 1.4 if PDF/X-3:2003 is activated. +

+ PDF profile compatibility +

+ The PDF profiles "PDF/X-3:2003" and "PDF/A-1b" are compatible and can both be + activated at the same time. +

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/running.xml b/src/documentation/content/xdocs/1.1rc1/running.xml new file mode 100644 index 000000000..5e30bb25e --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/running.xml @@ -0,0 +1,370 @@ + + + + + +

+ Running Apache™ FOP + $Revision$ +

+ + +

+ System Requirements +

The following software must be installed:

+ Java 1.4.x or later Runtime Environment. +
- + Many JREs >=1.4 contain older JAXP implementations (which often contain bugs). It's + usually a good idea to replace them with a current implementation. +
+
+ Apache™ FOP. The FOP distribution includes all libraries that you will + need to run a basic FOP installation. These can be found in the [fop-root]/lib directory. These + libraries include the following: +
- Apache XML Graphics Commons, an shared library for Batik and FOP.
- Apache Batik, an SVG library.
- Apache Commons Logging, a logger abstraction kit.
- Apache Commons IO, a library with I/O utilities.
- Apache Excalibur/Avalon Framework, for XML configuration handling.
+

The following software is optional, depending on your needs:

+ Graphics libraries. Generally, FOP contains direct support for the most important + bitmap image formats (including PNG, JPEG and GIF). See + FOP: Graphics Formats for details. +
+ PDF encryption. See FOP: PDF Encryption for details. +

In addition, the following system requirements apply:

+ If you will be using FOP to process SVG, you must do so in a graphical environment. + See FOP: Graphics (Batik) for details. +

+ Installation +

+ Instructions +

+ Basic FOP installation consists of first unzipping the .gz file that is the + distribution medium, then unarchiving the resulting .tar file in a + directory/folder that is convenient on your system. Please consult your operating system + documentation or Zip application software documentation for instructions specific to your + site. +

+ Problems +

+ Some Mac OSX users have experienced filename truncation problems using Stuffit to unzip + and unarchive their distribution media. This is a legacy of older Mac operating systems, + which had a 31-character pathname limit. Several Mac OSX users have recommended that + Mac OSX users use the shell command tar -xzf instead. +

+ Starting FOP as a Standalone Application +

+ Using the fop script or batch file +

+ The usual and recommended practice for starting FOP from the command line is to run the + batch file fop.bat (Windows) or the shell script fop (Unix/Linux). + These scripts require that the environment variable JAVA_HOME be + set to a path pointing to the appropriate Java installation on your system. Macintosh OSX + includes a Java environment as part of its distribution. We are told by Mac OSX users that + the path to use in this case is /Library/Java/Home. Caveat: + We suspect that, as Apple releases new Java environments and as FOP upgrades the minimum + Java requirements, the two will inevitably not match on some systems. Please see + Java on Mac OSX FAQ for information as + it becomes available. +

+ + [OPTIONS] + -version print FOP version and exit + -d debug mode + -x dump configuration settings + -q quiet mode + -c cfg.xml use additional configuration file cfg.xml + -l lang the language to use for user information + -nocs disable complex script features + -r relaxed/less strict validation (where available) + -dpi xxx target resolution in dots per inch (dpi) where xxx is a number + -s for area tree XML, down to block areas only + -v run in verbose mode (currently simply print FOP version and continue) + + -o [password] PDF file will be encrypted with option owner password + -u [password] PDF file will be encrypted with option user password + -noprint PDF file will be encrypted without printing permission + -nocopy PDF file will be encrypted without copy content permission + -noedit PDF file will be encrypted without edit content permission + -noannotations PDF file will be encrypted without edit annotation permission + -nofillinforms PDF file will be encrypted without fill in forms permission + -noaccesscontent PDF file will be encrypted without extract text and graphics permission + -noassembledoc PDF file will be encrypted without assemble the document permission + -noprinthq PDF file will be encrypted without print high quality permission + -a enables accessibility features (Tagged PDF etc., default off) + -pdfprofile prof PDF file will be generated with the specified profile + (Examples for prof: PDF/A-1b or PDF/X-3:2003) + + -conserve enable memory-conservation policy (trades memory-consumption for disk I/O) + (Note: currently only influences whether the area tree is serialized.) + + -cache specifies a file/directory path location + -flush flushes the current font cache file + + [INPUT] + infile xsl:fo input file (the same as the next) + (use '-' for infile to pipe input from stdin) + -fo infile xsl:fo input file + -xml infile xml input file, must be used together with -xsl + -atin infile area tree input file + -ifin infile intermediate format input file + -imagein infile image input file (piping through stdin not supported) + -xsl stylesheet xslt stylesheet + + -param name value to use for parameter in xslt stylesheet + (repeat '-param name value' for each parameter) + + -catalog use catalog resolver for input XML and XSLT files + [OUTPUT] + outfile input will be rendered as PDF into outfile + (use '-' for outfile to pipe output to stdout) + -pdf outfile input will be rendered as PDF (outfile req'd) + -pdfa1b outfile input will be rendered as PDF/A-1b compliant PDF + (outfile req'd, same as "-pdf outfile -pdfprofile PDF/A-1b") + -awt input will be displayed on screen + -rtf outfile input will be rendered as RTF (outfile req'd) + -pcl outfile input will be rendered as PCL (outfile req'd) + -ps outfile input will be rendered as PostScript (outfile req'd) + -afp outfile input will be rendered as AFP (outfile req'd) + -tiff outfile input will be rendered as TIFF (outfile req'd) + -png outfile input will be rendered as PNG (outfile req'd) + -txt outfile input will be rendered as plain text (outfile req'd) + -at [mime] out representation of area tree as XML (outfile req'd) + specify optional mime output to allow the AT to be converted + to final format later + -if [mime] out representation of document in intermediate format XML (outfile req'd) + specify optional mime output to allow the IF to be converted + to final format later + -print input file will be rendered and sent to the printer + see options with "-print help" + -out mime outfile input will be rendered using the given MIME type + (outfile req'd) Example: "-out application/pdf D:\out.pdf" + (Tip: "-out list" prints the list of supported MIME types) + -svg outfile input will be rendered as an SVG slides file (outfile req'd) + Experimental feature - requires additional fop-sandbox.jar. + + -foout outfile input will only be XSL transformed. The intermediate + XSL-FO file is saved and no rendering is performed. + (Only available if you use -xml and -xsl parameters) + + + [Examples] + fop foo.fo foo.pdf + fop -fo foo.fo -pdf foo.pdf (does the same as the previous line) + fop -xml foo.xml -xsl foo.xsl -pdf foo.pdf + fop -xml foo.xml -xsl foo.xsl -foout foo.fo + fop -xml - -xsl foo.xsl -pdf - + fop foo.fo -mif foo.mif + fop foo.fo -rtf foo.rtf + fop foo.fo -print + fop foo.fo -awt]]> +

+ PDF encryption is only available if FOP was compiled with encryption support + and if compatible encryption support is available at run time. + Currently, only the JCE is supported. Check the Details. +

+ Writing your own script +

FOP's entry point for your own scripts is the class +org.apache.fop.cli.Main. The general pattern for the + command line is: java -classpath <CLASSPATH> + org.apache.fop.cli.Main <arguments>. The arguments + consist of the options and infile and outfile specifications + as shown above for the standard scripts. You may wish to review + the standard scripts to make sure that + you get your environment properly configured. +

+ Running with java's <code>-jar</code> option +

+ As an alternative to the start scripts you can run java + -jar path/to/build/fop.jar <arguments>, relying on + FOP to build the classpath for running FOP dynamically, see below. If you use hyphenation, + you must put fop-hyph.jar in the lib + directory. +

+ +

You can also run java -jar path/to/fop.jar + <arguments>, relying on the Class-Path + entry in the manifest file. This works if you put + fop.jar and all jar files from the lib + directory in a single directory. If you use hyphenation, you + must also put fop-hyph.jar in that directory.

+ +

In both cases the arguments consist of the options and + infile and outfile specifications as shown above for the + standard scripts.

+ FOP's dynamical classpath construction + +

If FOP is started without a proper classpath, it tries to + add its dependencies dynamically. If the system property + fop.home contains the name of a directory, then + FOP uses that directory as the base directory for its + search. Otherwise the current working directory is the base + directory. If the base directory is called build, + then its parent directory becomes the base directory.

+ +

FOP expects to find fop.jar in the + build subdirectory of the base directory, and + adds it to the classpath. Subsequently FOP adds all + jar files in the lib directory to the + classpath. The lib directory is either the lib + subdirectory of the base directory, or, if that does not + exist, the base directory itself.

+ +

If the system property fop.optional.lib + contains the name of a directory, then all jar + files in that directory are also added to the classpath. See + the methods getJARList and + checkDependencies in + org.apache.fop.cli.Main.

+ +

+ Using Xalan to Check XSL-FO Input +

+ FOP sessions that use -xml and -xsl input instead of -fo input are actually + controlling two distinct conversions: Tranforming XML to XSL-FO, then formatting + the XSL-FO to PDF (or another FOP output format). + Although FOP controls both of these processes, the first is included merely as + a convenience and for performance reasons. + Only the second is part of FOP's core processing. + If a user has a problem running FOP, it is important to determine which of these + two processes is causing the problem. + If the problem is in the first process, the user's stylesheet is likely the cause. + The FOP development team does not have resources to help with stylesheet issues, + although we have included links to some useful + Specifications and + Books/Articles. + If the problem is in the second process, FOP may have a bug or an unimplemented + feature that does require attention from the FOP development team. +

+ The user is always responsible to provide correct XSL-FO code to FOP. +

+ In the case of using -xml and -xsl input, although the user is responsible for + the XSL-FO code that is FOP's input, it is not visible to the user. To make the + intermediate FO file visible, the FOP distribution includes the "-foout" option + which causes FOP to run only the first (transformation) step, and write the + results to a file. (See also the Xalan command-line below) +

+ + When asking for help on the FOP mailing lists, never attach XML and + XSL to illustrate the issue. Always run the XSLT step (-foout) and send the + resulting XSL-FO file instead. Of course, be sure that the XSL-FO file is + correct before sending it. + +

+ The -foout option works the same way as if you would call the + Xalan command-line: +

+ java org.apache.xalan.xslt.Process -IN xmlfile -XSL file -OUT outfile +

+ Note that there are some subtle differences between the FOP and Xalan command-lines. +

+ Memory Usage +

+ FOP can consume quite a bit of memory, even though this has been continually improved. + This is partly inherent to the formatting process and partly caused by implementation choices. + All FO processors currently on the market have memory problems with certain layouts. +

+ If you are running out of memory when using FOP, here are some ideas that may help: +

+ Increase memory available to the JVM. See + the -Xmx option + for more information. + + It is usually unwise to increase the memory allocated to the JVM beyond the amount of + physical RAM, as this will generally cause significantly slower performance. + +
+ Avoid forward references. + Forward references are references to some later part of a document. + Examples include page number citations which refer to pages which follow the citation, + tables of contents at the beginning of a document, and page numbering schemes that + include the total number of pages in the document + ("page N of TOTAL"). + Forward references cause all subsequent pages to be held in memory until the reference + can be resolved, i.e. until the page with the referenced element is encountered. + Forward references may be required by the task, but if you are getting a memory + overflow, at least consider the possibility of eliminating them. + A table of contents could be replaced by PDF bookmarks instead or moved to the end of + the document (reshuffle the paper could after printing). +
+ Avoid large images, especially if they are scaled down. + If they need to be scaled, scale them in another application upstream from FOP. + For many image formats, memory consumption is driven mainly by the size of the image + file itself, not its dimensions (width*height), so increasing the compression rate + may help. +
+ Use multiple page sequences. + FOP starts rendering after the end of a page sequence is encountered. + While the actual rendering is done page-by-page, some additional memory is + freed after the page sequence has been rendered. + This can be substantial if the page sequence contains lots of FO elements. +

+ Problems +

If you have problems running FOP, please see the "How to get Help" page.

+ + diff --git a/src/documentation/content/xdocs/1.1rc1/servlets.xml b/src/documentation/content/xdocs/1.1rc1/servlets.xml new file mode 100644 index 000000000..dd2df4351 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/servlets.xml @@ -0,0 +1,325 @@ + + + + + +

+ Apache™ FOP: Servlets + How to use Apache™ FOP in a Servlet + $Revision$ +

+ +

+ Overview +

+ This page discusses topic all around using Apache™ FOP in a servlet environment. +

+ Example Servlets in the FOP distribution +

+ In the directory {fop-dir}/src/java/org/apache/fop/servlet, you'll find a working example + of a FOP-enabled servlet. +

+ The servlet is automatically built when you build Apache FOP using the supplied Ant script. After building + the servlet, drop fop.war into the webapps directory of Apache Tomcat (or any other web container). Then, you can use + URLs like the following to generate PDF files: +

http://localhost:8080/fop/fop?fo=/home/path/to/fofile.fo
http://localhost:8080/fop/fop?xml=/home/path/to/xmlfile.xml&xsl=/home/path/to/xslfile.xsl

The source code for the servlet can be found under {fop-dir}/src/java/org/apache/fop/servlet/FopServlet.java.

+ + This example servlet should not be used on a public web server connected to the Internet as it does not contain + any measures to prevent Denial-of-Service-Attacks. It is provided as an example and as a starting point for + your own servlet. + +

+ Create your own Servlet + + This section assumes you are familiar with embedding FOP. + +

+ A minimal Servlet +

+ Here is a minimal code snippet to demonstrate the basics: +

+ private FopFactory fopFactory = FopFactory.newInstance(); +private TransformerFactory tFactory = TransformerFactory.newInstance(); + +public void doGet(HttpServletRequest request, + HttpServletResponse response) throws ServletException { + try { + response.setContentType("application/pdf"); + Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, response.getOutputStream()); + Transformer transformer = tFactory.newTransformer(); + Source src = new StreamSource("foo.fo"); + Result res = new SAXResult(fop.getDefaultHandler()); + transformer.transform(src, res); + } catch (Exception ex) { + throw new ServletException(ex); + } +} + + There are numerous problems with the code snippet above. + Its purpose is only to demonstrate the basic concepts. + See below for details. + +

+ Adding XSL tranformation (XSLT) +

+ A common requirement is to transform an XML source to + XSL-FO using an XSL transformation. It is recommended to use + JAXP for this task. The following snippet shows the basic + code: +

+ private FopFactory fopFactory = FopFactory.newInstance(); +private TransformerFactory tFactory = TransformerFactory.newInstance(); + +public void init() throws ServletException { + //Optionally customize the FopFactory and TransformerFactory here +} + +[..] + + //Setup a buffer to obtain the content length + ByteArrayOutputStream out = new ByteArrayOutputStream(); + + //Setup FOP + Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, out); + + //Setup Transformer + Source xsltSrc = new StreamSource(new File("foo-xml2fo.xsl")); + Transformer transformer = tFactory.newTransformer(xsltSrc); + + //Make sure the XSL transformation's result is piped through to FOP + Result res = new SAXResult(fop.getDefaultHandler()); + + //Setup input + Source src = new StreamSource(new File("foo.xml")); + + //Start the transformation and rendering process + transformer.transform(src, res); + + //Prepare response + response.setContentType("application/pdf"); + response.setContentLength(out.size()); + + //Send content to Browser + response.getOutputStream().write(out.toByteArray()); + response.getOutputStream().flush(); + + Buffering the generated PDF in a ByteArrayOutputStream is done to avoid potential + problems with the Acrobat Reader Plug-in in Microsoft Internet Explorer. + +

+ The Source instance used above is simply an + example. If you have to read the XML from a string, supply + a new StreamSource(new + StringReader(xmlstring)). Constructing and reparsing + an XML string is generally less desirable than using a + SAXSource if you generate your XML. You can alternatively + supply a DOMSource as well. You may also use dynamically + generated XSL if you like. +

+ Because you have an explicit Transformer object, you can also use it to + explicitely set parameters for the transformation run. +

+ Custom configuration +

+ You can easily set up your own FOUserAgent as demonstrated on the Embedding page. +

+ Improving performance +

+ There are several options to consider: +

+ Instead of java.io.ByteArrayOutputStream consider using the ByteArrayOutputStream + implementation from the Jakarta Commons IO project which allocates less memory. + The full class name is: org.apache.commons.io.output.ByteArrayOutputStream +
+ In certain cases it can help to write the generated PDF to a temporary file so + you can quickly reuse the file. This is especially useful, if Internet Explorer + calls the servlet multiple times with the same request or if you often generate + equal PDFs. +

+ Of course, the + performance hints from the Embedding page + apply here, too. +

+ Accessing resources in your web application +

+ Often, you will want to use resources (stylesheets, images etc.) which are bundled with + your web application. FOP provides a URIResolver implementation that lets you access + files via the Servlet's ServletContext. The class is called + org.apache.fop.servlet.ServletContextURIResolver. +

+ Here's how to set it up in your servlet. Instantiate a new instance in the servlet's + init() method: +

+ +

+ The ServletContextURIResolver reacts on URIs beginning with "servlet-context:". If you + want to access an image in a subdirectory of your web application, you could, for + example, use: "servlet-context:/images/myimage.png". Don't forget the leading slash + after the colon! +

+ Further down, you can use the URIResolver for various things: +

+ With the Transformer (JAXP/XSLT) so things like document() functions can resolver + "servlet-context:" URIs. +
+ With the FopFactory so every resource FOP loads can be loaded using a "servlet-context:" + URI. +
+ You can the ServletContextURIResolver yourself in your servlet code to access + stylesheets or XML files bundled with your web application. +

+ Here are some example snippets: +

+ +

+ Notes on Microsoft Internet Explorer +

+ Some versions of Internet Explorer will not automatically show the PDF or call the servlet multiple times. + These are well-known limitations of Internet Explorer and are not a problem of the servlet. + However, Internet Explorer can still be used to download the PDF so that it can be viewed later. + Here are some suggestions in this context: +

+ Use an URL ending in .pdf, like + http://myserver/servlet/stuff.pdf. Yes, the servlet can + be configured to handle this. If the URL has to contain parameters, + try to have both the base URL as well as the last parameter end in + .pdf, if necessary append a dummy parameter, like + http://myserver/servlet/stuff.pdf?par1=a&par2=b&d=.pdf. The + effect may depend on IEx version. +
+ Give IEx the opportunity to cache. In particular, ensure the + server does not set any headers causing IEx not to cache the + content. This may be a real problem if the document is sent + over HTTPS, because most IEx installations will by default + not cache any content retrieved over HTTPS. + Setting the Expires header entry may help in + this case:
response.setDateHeader("Expires", + System.currentTimeMillis() + cacheExpiringDuration * + 1000);
Consult your server manual and the + relevant RFCs for further details on HTTP headers and + caching. +
+ Cache in the server. It may help to include a parameter in + the URL which has a timestamp as the value min order to + decide whether a request is repeated. IEx is reported to + retrieve a document up to three times, but never more often. +

+ Servlet Engines +

+ When using a servlet engine, there are potential CLASSPATH issues, and potential conflicts + with existing XML/XSLT libraries. Servlet containers also often use their own classloaders + for loading webapps, which can cause bugs and security problems. +

+ Tomcat +

+ Check Tomcat's documentation for detailed instructions about installing FOP and Cocoon. + There are known bugs that must be addressed, particularly for Tomcat 4.0.3. +

+ WebSphere 3.5 +

+ Put a copy of a working parser in some directory where WebSphere can access it. + For example, if /usr/webapps/yourapp/servlets is the CLASSPATH for your servlets, + copy the Xerces jar into it (any other directory would also be fine). + Do not add the jar to the servlet CLASSPATH, but add it to the CLASSPATH of the + application server which contains your web application. + In the WebSphere administration console, click on the "environment" button in the + "general" tab. In the "variable name" box, enter "CLASSPATH". + In the "value" box, enter the correct path to the parser jar file + (/usr/webapps/yourapp/servlets/Xerces.jar in our example here). + Press "OK", then apply the change and restart the application server. +

+ Handling complex use cases +

+ Sometimes the requirements for a servlet get quite sophisticated: SQL data sources, + multiple XSL transformations, merging of several datasources etc. In such a case + consider using Apache Cocoon instead + of a custom servlet to accomplish your goal. +

+ + \ No newline at end of file diff --git a/src/documentation/content/xdocs/1.1rc1/upgrading.xml b/src/documentation/content/xdocs/1.1rc1/upgrading.xml new file mode 100644 index 000000000..1e2136a06 --- /dev/null +++ b/src/documentation/content/xdocs/1.1rc1/upgrading.xml @@ -0,0 +1,181 @@ + + + + + +

+ Upgrading from an Earlier Version of Apache™ FOP + $Revision$ +

+ +

+ Upgrading from Version 1.0 +

+ You should encounter very few issues in upgrading from FOP 1.0, except as noted in the following: +

+ The intermediate format (IF) output format has underwent minor modification as follows: +
- + In order to track changes to the IF format, a version attribute has been added to the root + document element. Since no version information was provided previously, the initial + value of this attribute is 2.0. Future backward compatible changes will update the minor + version number, while future non-backward compatible changes will update the major version number. +
- + On the text element, a new alternate representation is used for adjustments to glyph positions as expressed by a dp + attribute instead of the dx attribute. For further information, see + complex + script patch - intermediate format changes. +
- + On the border-rect element, the attributes {before, after, start, end} + have been renamed to {top, bottom, left, right}, respectively. + For further information, see + complex + script patch - intermediate format changes. +
+
+ The IFPainter interface (of package org.apache.fop.render.intermediate), specifically the + drawText and drawBorderRect method signatures, have been modified to express the semantics of the above changes to the IF output format. +
+ The area tree (AT) output format has underwent minor modification as follows: +
- + In order to track changes to the AT format, a version attribute has been added to the root + areaTree element. Since no version information was provided previously, the initial + value of this attribute is 2.0. Future backward compatible changes will update the minor + version number, while future non-backward compatible changes will update the major version number. +
- + An optional level attribute has been added to a number of element types to express resolved bidirectional level. +
- + An optional reversed attribute has been added to the word element type to express that the glyphs that + correspond to the character content of the element should be reversed (in order) in the inline progression dimension when rendering. +
+
+ Because complex script features are now enabled by default, it is possible that different font specific data will be used for + kerning than was previously used. This may be the case if a font supports a traditional TrueType kern table and + also supports the advanced typographic kern feature with a GPOS table. In FOP 1.0, the former is used for kerning, + while in FOP 1.1 with complex script features enabled, the latter is used. If it is desired to explicitly use the kern table (rather + than the GPOS table) in such a case, then the -nocs command line option may be used when invoking FOP + in order to disable complex script features. +

+ Upgrading from Pre-1.0 Versions +

+ If you're planning to upgrade to the latest Apache™ FOP version from a pre-1.0 version, + there are a few very important things to consider: +

+ The API of FOP has changed considerably and is not + backwards-compatible with versions 0.20.5 and + 0.91beta. Version 0.92 introduced the new stable + API. +
+ Since version 0.92 some deprecated methods which were part + of the old API have been removed. If you upgrade from 0.91 + beta, you will need to adjust your Java code. Similarly if + you upgrade from 0.92 and use deprecated methods. +
+ If you are using a configuration file for version 0.20.5, you have to rebuild it in the new format. The format + of the configuration files has changed since version 0.20.5. See conf/fop.xconf for + an example configuration file. A XML Schema file can be found under + src/foschema/fop-configuration.xsd. +
+ Beginning with version 0.94 you can skip the generation of + font metric files and remove the "font-metrics" attribute + in the font configuration. In the unlikely case that due to + a bug you still need to use font metrics files you will need + to regenerate the font metrics file if yours are from a FOP + version before 0.93. +
+
+ The new code is much more strict about the interpretation of the XSL-FO specification. + Things that worked fine in version 0.20.5 might start to produce warnings or even errors + now. FOP 0.20.5 contains many bugs which have been corrected in the new code. +
+ + While FOP 0.20.5 allowed you to have empty fo:table-cell elements, the new code + will complain about that (unless relaxed validation is enabled) because the specification + demands at least one block-level element ((%block;)+, see + XSL-FO 1.1, 6.7.10) + inside an fo:table-cell element. + +
+ Extensions and Renderers written for version 0.20.5 will not work with the new code! The new FOP + extension for Barcode4J is available since + January 2007. +
+ The SVG Renderer and the MIF Handler have not yet been resurrected! They are currently non-functional + and hope for someone to step up and reimplement them. +

+ When you use your existing FO files or XML/XSL files which work fine with FOP version + 0.20.5 against this FOP version some things may not work as expected. The following + list will hopefully help you to identify and correct those problems. +

+ Check the Compliance page for the feature causing + trouble. It may contain the necessary information to understand and resolve the problem. +
+ Not all 0.20.5 output formats are supported. PDF and Postscript should be fully supported. + See Output Targets for a more complete description. +
+ As stated above, empty table cells <fo:table-cell></fo:table-cell> + are not allowed by the specification. The same applies to empty fo:static-content + and fo:block-container elements, for example. +
+ Version 0.20.5 is not XSL-FO compliant with respect to sizing images (external-graphic) + or instream-foreign-object + objects. If images or SVGs are sized differently in your outputs with the new FOP version + check Bug 37136 + as it contains some hints on what to do. The file + + "examples/fo/basic/images.fo" has + a number of good examples that show the correct behaviour. +
+ The fox:outline extension is not implemented in the current version: + it has been superseded by the new bookmark elements from XSL-FO 1.1. +

+ + diff --git a/src/documentation/content/xdocs/bugs.xml b/src/documentation/content/xdocs/bugs.xml index caeb728b2..100789c54 100644 --- a/src/documentation/content/xdocs/bugs.xml +++ b/src/documentation/content/xdocs/bugs.xml @@ -17,7 +17,6 @@ --> -

Apache™ FOP: Bugs and Other Trackable Issues diff --git a/src/documentation/content/xdocs/compliance.ihtml b/src/documentation/content/xdocs/compliance.ihtml index a8e7a39ca..bdfe96d8d 100644 --- a/src/documentation/content/xdocs/compliance.ihtml +++ b/src/documentation/content/xdocs/compliance.ihtml @@ -560,9 +560,9 @@ Comments - 0.95 (stable) 1.0 (stable) - develop- ment + 1.1 (rc1) + development @@ -883,8 +883,8 @@ bidi-override Extended no - no - no + yes + yes @@ -1439,7 +1439,7 @@ "http://www.w3.org/TR/xsl/#fo_wrapper">§6.13.4 wrapper Basic - partial + yes yes yes Only works as expected with inline-level content. @@ -1491,8 +1491,8 @@ Comments - 0.95 (stable) 1.0 (stable) + 1.1 (rc1) develop- ment @@ -1596,7 +1596,6 @@ na na na - na @@ -1607,7 +1606,6 @@ na na na - na @@ -1618,7 +1616,6 @@ na na na - na @@ -1629,7 +1626,6 @@ na na na - na @@ -1640,7 +1636,6 @@ na na na - na @@ -1651,7 +1646,6 @@ na na na - na @@ -1662,7 +1656,6 @@ na na na - na @@ -1673,7 +1666,6 @@ na na na - na @@ -1684,7 +1676,6 @@ na na na - na @@ -1695,7 +1686,6 @@ na na na - na @@ -1706,7 +1696,6 @@ na na na - na @@ -1717,7 +1706,6 @@ na na na - na @@ -1728,7 +1716,6 @@ na na na - na @@ -1740,7 +1727,6 @@ na na na - na @@ -1751,7 +1737,6 @@ na na na - na @@ -1762,7 +1747,6 @@ na na na - na @@ -1773,7 +1757,6 @@ na na na - na @@ -1784,7 +1767,6 @@ na na na - na @@ -2321,7 +2303,7 @@ yes yes For PDF output: Only 2-letter codes from ISO 639 are supported properly to - identify the natural language! + identify the natural language! Also used with complex scripts features. script Extended no - no - no - + yes + yes + Used with complex scripts features to override default script heuristics. §7.15.8 max-height Complete - no + yes yes yes @@ -2755,7 +2737,7 @@ "http://www.w3.org/TR/xsl/#max-width">§7.15.9 max-width Complete - no + yes yes yes @@ -2765,7 +2747,7 @@ "http://www.w3.org/TR/xsl/#min-height">§7.15.10 min-height Complete - no + yes yes yes @@ -2775,7 +2757,7 @@ "http://www.w3.org/TR/xsl/#min-width">§7.15.11 min-width Complete - no + yes yes yes @@ -3164,7 +3146,6 @@ partial

[0.95] <integer> values are not supported.
[1.0 and later] minimal support for <integer> value.

@@ -3182,7 +3163,6 @@

works on all implemented block-level FOs, but not on inline-level FOs.
[0.95] <integer> values are not supported.
[1.0 and later] minimal support for <integer> value.

@@ -3198,11 +3178,8 @@ partial

[0.95] works on all implemented FOs, except list- and inline-level - FOs.
[1.0 and later] works on all implemented block-level FOs, but not on inline-level FOs.
[0.95] <integer> values are not supported.
[1.0 and later] minimal support for <integer> value.

@@ -3443,7 +3420,7 @@ show-destination Extended - no + partial partial partial [1.0 and later] only has effect in PDF output, for external PDF destinations (links pointing to destinations @@ -3670,9 +3647,9 @@ format Basic partial - partial - partial - only values '0*1', 'a', 'A', 'i', 'I' supported + yes + yes + [1.0 and earlier] only values '0*1', 'a', 'A', 'i', 'I' supported grouping-separator Extended no - no - no + yes + yes @@ -3691,8 +3668,8 @@ grouping-size Extended no - no - no + yes + yes @@ -3701,8 +3678,8 @@ letter-value Basic no - no - no + yes + yes @@ -3852,7 +3829,7 @@ "http://www.w3.org/TR/xsl/#page-position">§7.27.14 page-position Extended - partial + yes yes yes value "only" not supported @@ -4200,9 +4177,9 @@ writing-mode Basic no - no - no - + yes + yes + [1.1 and later] only horizontal left-to-right and right-to-left modes @@ -4522,7 +4499,6 @@ na na na - na @@ -4596,7 +4572,6 @@ na na na - na @@ -4667,11 +4642,10 @@ Comments - 0.95 (stable) 1.0 (stable) - develop- ment + 1.1 (rc1) + development - §5.10.1 diff --git a/src/documentation/content/xdocs/download.xml b/src/documentation/content/xdocs/download.xml index ab379fe44..905e4a131 100644 --- a/src/documentation/content/xdocs/download.xml +++ b/src/documentation/content/xdocs/download.xml @@ -84,6 +84,25 @@

+ + + + + + + + + + + @@ -109,7 +128,7 @@ @@ -168,11 +187,11 @@ Archive Download
FOP Archive distributions are linked from the upper portion of the Apache FOP - Download Mirror Page and can be downloaded from the FOP Archives - binaries & - source links. + Download Mirror Page and can be downloaded from the FOP + binaries and + source archives.
- \ No newline at end of file + diff --git a/src/documentation/content/xdocs/faq.xml b/src/documentation/content/xdocs/faq.xml index 845c24045..79a20e966 100644 --- a/src/documentation/content/xdocs/faq.xml +++ b/src/documentation/content/xdocs/faq.xml @@ -16,7 +16,7 @@ limitations under the License. --> - + @@ -146,16 +146,16 @@
When it's ready and the committers have enough time to go - through the time-consuming process of creating a release. We - released version 1.0 on 21 July 2010, and will release version - 1.1 when we accumulated enough additions and bug fixes. If - you want to speed up the process, consider contributing to - FOP.
+ through the time-consuming process of creating a release. Version + 1.1rc1 was released on 02 July 2012. A subsequent final + Version 1.1 is expected to be released within 1 to 3 months following + this release candidate. If you want to speed up the process, consider contributing to FOP. +
- Why did you redesign FOP? + Why did you redesign FOP between Versions 0.2X and 0.9X?
The code redesign of FOP was necessary in order to be able to adress following issues:

diff --git a/src/documentation/content/xdocs/fo.xml b/src/documentation/content/xdocs/fo.xml index ba2402cfe..c668eecfd 100644 --- a/src/documentation/content/xdocs/fo.xml +++ b/src/documentation/content/xdocs/fo.xml @@ -17,7 +17,6 @@ --> -
Apache™ FOP: XSL-FO Input @@ -67,7 +66,7 @@ The following hexadecimal example will result in a Euro sign: Getting your XML correctly encoded is only part of the job. If you want the character to display or print correctly (and you probably do), then the selected font must contain the necessary glyph. Because of differences between font encoding methods, and limitations in some font technologies, this can be a troublesome issue, especially for symbol characters. -The FOP example file Base-14 Font Character Mapping is a very useful resource in sorting these issues out for the Base-14 fonts. +The FOP example file Base-14 Font Character Mapping is a very useful resource in sorting these issues out for the Base-14 fonts. For other fonts, use font editing sofware or operating system utilities (such as the Character Map in most Windows platforms) to determine what characters the font supports.

@@ -519,10 +518,10 @@ This applies similarly to the extent of the after region and the bottom margin o
External Resources
Resources needed by an XSL-FO file that are external to it (graphics, for example), are defined in the XSL-FO standard as being of type "uri-specification". This is defined in the standard at Section 5.11 Property Datatypes, which includes a link to the URI standard itself. Refer to the XSL-FO and URI standards themselves for more detailed instructions.
-
URIs may be either absolute or relative to a base URI. (See FOP: Configuration for information on setting the base URI for a FOP session). Here is an example referencing an external-graphic that is relative to the base URI:
+
URIs may be either absolute or relative to a base URI. (See FOP: Configuration for information on setting the base URI for a FOP session). Here is an example referencing an external-graphic that is relative to the base URI:
]]>
Here is an example referencing an external-graphic that is an absolute URI on a local filesystem:
- ]]> + ]]>
diff --git a/src/documentation/content/xdocs/index.xml b/src/documentation/content/xdocs/index.xml index 0b05b6e2b..8a95934e3 100644 --- a/src/documentation/content/xdocs/index.xml +++ b/src/documentation/content/xdocs/index.xml @@ -17,7 +17,6 @@ --> -
Apache™ FOP @@ -26,25 +25,22 @@
Introduction -
Apache™ FOP (Formatting Objects Processor) is a print formatter driven by XSL +
+ Apache™ FOP (Formatting Objects Processor) is a print formatter driven by XSL formatting objects (XSL-FO) and an output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting - pages to a specified output. Output formats + pages to a specified output. Output formats currently supported include PDF, PS, PCL, AFP, XML (area tree representation), Print, AWT and PNG, and to a lesser extent, RTF and TXT. The primary output target is PDF.
-
The Apache™ FOP project is part of the Apache™ - Software Foundation, which is a wider community of users and developers of open - source projects. +
+ The Apache™ FOP project is part of the Apache™ + Software Foundation, which is a wider community of users and developers of open source projects. +
+
+
+ A release candidate (rc1) of the latest version of FOP is available at FOP 1.1rc1.
-
-
- A stable release of the latest version of FOP (1.0) is - available. It's the third - stable release after the large redesign effort and implements a large subset of the - XSL-FO Version 1.1 W3C - Recommendation. -

Support for each of the standard's objects and properties is detailed in FOP Compliance. Download options include a precompiled version, source code, and many example files to get you started. Resources include links to XSL-FO introductions and many other useful references. A checklist for Getting Help will guide you toward maximizing the usefulness of FOP. diff --git a/src/documentation/content/xdocs/knownissues.xml b/src/documentation/content/xdocs/knownissues.xml index 7c63fb69d..d916f0171 100644 --- a/src/documentation/content/xdocs/knownissues.xml +++ b/src/documentation/content/xdocs/knownissues.xml @@ -16,7 +16,14 @@ limitations under the License. --> - + + + + +]>
Apache™ FOP: Known Issues @@ -30,27 +37,25 @@ from data in FOP's code repository (Trunk) and may not exactly represent the list of issues in the latest release.
- -
- For additional information on known issues in Apache FOP, please have a look at the following pages, too: -
-
-
the bug list in Bugzilla
-
the task list in the Wiki
-
-
Apache™ FOP has an extensive automated testing infrastructure. Parts of this infrastructure are several sets of test cases. When a test case is listed in disabled-testcases.xml it is disabled in the JUnit tests during the normal build process. This indicates a problem in the current codebase. When a bug is fixed or a missing feature is added the entry for the relevant test case(s) are removed.
+
+ For additional information on known issues in Apache FOP, please have a look at the following pages, too: +
+
+
the bug list in Bugzilla
+
the task list in the Wiki
+

FO Tree
This section lists currently disabled test cases in the test suite for the FO tree tests. The data for this section comes from - test/fotree/disabled-testcases.xml. + test/fotree/disabled-testcases.xml.

@@ -59,7 +64,7 @@
This section lists currently disabled test cases in the test suite for the layout engine tests. The data for this section comes from - test/layoutengine/disabled-testcases.xml. + test/layoutengine/disabled-testcases.xml.

diff --git a/src/documentation/content/xdocs/license.xml b/src/documentation/content/xdocs/license.xml index b3b552a84..95e8b455a 100644 --- a/src/documentation/content/xdocs/license.xml +++ b/src/documentation/content/xdocs/license.xml @@ -17,7 +17,6 @@ --> -
Apache™ FOP License @@ -28,7 +27,7 @@ License
All new Apache™ FOP releases will be licensed under the Apache™ License, version 2.0. - Releases until version 0.20.5 are released unter the Apache™ License, version 1.1. + Releases up through version 0.20.5 were released under the Apache™ License, version 1.1.

To inspect the license terms please consult the LICENSE and NOTICE files in the root diff --git a/src/documentation/content/xdocs/maillist.xml b/src/documentation/content/xdocs/maillist.xml index ec5e274dc..b24166462 100644 --- a/src/documentation/content/xdocs/maillist.xml +++ b/src/documentation/content/xdocs/maillist.xml @@ -83,7 +83,7 @@ If you are using Microsoft Outlook, this setting can be found at the "Mail Forma source, or other semantic XML? If so, the question is almost certainly not appropriate to this list. In general, the only input documents that are appropriate on this list are XSL-FO snippets. See Running Xalan for instructions about capturing the XSL-FO document that is actually submitted to FOP. If you haven't examined the XSL-FO document yourself, then you are not yet prepared to formulate a FOP-specific question. + href="1.1rc1/running.html#check-input">Running Xalan for instructions about capturing the XSL-FO document that is actually submitted to FOP. If you haven't examined the XSL-FO document yourself, then you are not yet prepared to formulate a FOP-specific question.
If you are providing one or more XSL-FO snippets:

Have you reduced them to the shortest possible complete, self-contained document that demonstrates the problem? Please do so.
diff --git a/src/documentation/content/xdocs/news-data.xml b/src/documentation/content/xdocs/news-data.xml index 1fec872df..4b8956cd1 100644 --- a/src/documentation/content/xdocs/news-data.xml +++ b/src/documentation/content/xdocs/news-data.xml @@ -17,6 +17,15 @@ --> + +
+ This is a candidate release for an upcoming FOP Version 1.1 (stable) release. + release of the new FOP codebase. This release + contains bug fixes and new features. See + Release Notes for a list of + the most important changes. +
+
Welcome Glenn Adams!
diff --git a/src/documentation/content/xdocs/news.xml b/src/documentation/content/xdocs/news.xml index 978314977..688558226 100644 --- a/src/documentation/content/xdocs/news.xml +++ b/src/documentation/content/xdocs/news.xml @@ -16,17 +16,24 @@ limitations under the License. --> - - + + + + +]> +
Apache™ FOP News $Revision$

- RSS Feed: + RSS Feed:
- + diff --git a/src/documentation/content/xdocs/quickstartguide.xml b/src/documentation/content/xdocs/quickstartguide.xml index 2020e4b36..3d369c08c 100644 --- a/src/documentation/content/xdocs/quickstartguide.xml +++ b/src/documentation/content/xdocs/quickstartguide.xml @@ -29,15 +29,15 @@
The goal of this Quick Start Guide is to help novice users get Apache FOP up and running quickly. Typically, you'll need to:

Download FOP
-
Build FOP (you can skip this step if you download the binary distribution!)
-
Configure FOP
-
Run FOP
+
Build FOP (you can skip this step if you download the binary distribution!)
+
Configure FOP
+
Run FOP

Here are some links to help you find out what FOP can do, as well as how and where to get help:

-
Calling FOP from a Java Application
-
Using FOP in Servlets
-
Using FOP in an 'Ant' Build Script
+
Calling FOP from a Java Application
+
Using FOP in Servlets
+
Using FOP in an 'Ant' Build Script

XSL-FO Compliance (what FOP supports and what it doesn't)

FAQs

Getting Help
@@ -45,7 +45,7 @@

Once you've familiarized yourself with the basics, you can get more detailed information, - in the detailed FOP product documentation. + in the detailed FOP product documentation.
diff --git a/src/documentation/content/xdocs/site.xml b/src/documentation/content/xdocs/site.xml index 322f5e52c..c750f9556 100644 --- a/src/documentation/content/xdocs/site.xml +++ b/src/documentation/content/xdocs/site.xml @@ -29,13 +29,9 @@ - " - " - - + + + @@ -59,80 +55,82 @@ --> - + - - - + + + - + - + + + + - - - - - - + + + + - + - + - - + + + - + - - - - - - - + + + + + - - + - + + + + diff --git a/src/documentation/content/xdocs/status.xml b/src/documentation/content/xdocs/status.xml index 8a6ea5dce..1b6f1dc2b 100644 --- a/src/documentation/content/xdocs/status.xml +++ b/src/documentation/content/xdocs/status.xml @@ -27,23 +27,27 @@
Status -
[last updated 5 July 2010]
+
Last updated 02 July 2012.

- Apache™ FOP version 0.95 was released on 5 August 2008. Apache™ FOP version 1.0 was released on 21 July 2010. + Apache™ FOP version 1.1rc1 (candidate) was released on 02 July 2012.

Development Status - -
The FOP code base is gradually evolving, from version 0.90 - released on 22 November 2005, to version 1.0 released on 21 July - 2010. Further releases in the 1.x series may be expected.
-
FOP releases before version 0.90 were based on a different - code base. The last release in that series was version 0.20.5, - released on 18 July 2003. This series is no longer maintained.

- If you're looking for a long-term road-map we have to disappoint you. This is Open - Source and we're mostly volunteers working in their free time. What we have + The FOP code base is gradually evolving, from Version 0.90, + released on 22 November 2005, to Version 1.1, expected to be released during + the Summer of 2012. Further releases in the 1.x series and beyond are expected. +
+
+ FOP releases prior to version 0.90 were based on a different + code base. The last release in that series was version 0.20.5, + released on 18 July 2003. This earlier series is no longer maintained. +
+
+ If you are looking for future release dates, keep in mind that FOP is an Open + Source project and we're a combination of volunteers (working in our free time) and + sponsored contributors (generally focusing on our sponsor's needs). What we have is an idea where we want to go. How fast we get there depends on the available time, on how well our ideas work out while developing and on you! There's a document in the Wiki @@ -82,11 +86,11 @@
- + - + diff --git a/src/documentation/content/xdocs/tabs.xml b/src/documentation/content/xdocs/tabs.xml index a9c458fe3..27e99b67c 100644 --- a/src/documentation/content/xdocs/tabs.xml +++ b/src/documentation/content/xdocs/tabs.xml @@ -21,8 +21,8 @@ - + diff --git a/src/documentation/content/xdocs/team.xml b/src/documentation/content/xdocs/team.xml index a6e2e51c9..aa969a84f 100644 --- a/src/documentation/content/xdocs/team.xml +++ b/src/documentation/content/xdocs/team.xml @@ -44,7 +44,7 @@ is an XP/Agile practitioner with interests in open source content management and electronic document generation. He is a UK expat now residing in Singapore.
Andreas Delmelle (AD)
-
Peter Hancock +
Peter Hancock (PH) is a Java developer from England.
Vincent Hennebert (VH), a Java developer from France; with an interest in typography, and in using diff --git a/src/documentation/resources/stylesheets/known-issues2document.xsl b/src/documentation/resources/stylesheets/known-issues2document.xsl index 8e10c35a2..ad0c4d70a 100644 --- a/src/documentation/resources/stylesheets/known-issues2document.xsl +++ b/src/documentation/resources/stylesheets/known-issues2document.xsl @@ -46,4 +46,10 @@
+ + + + + + diff --git a/src/java/org/apache/fop/afp/AFPGraphics2D.java b/src/java/org/apache/fop/afp/AFPGraphics2D.java index d0a959ad0..937cf68b0 100644 --- a/src/java/org/apache/fop/afp/AFPGraphics2D.java +++ b/src/java/org/apache/fop/afp/AFPGraphics2D.java @@ -26,7 +26,6 @@ import java.awt.Dimension; import java.awt.Font; import java.awt.FontMetrics; import java.awt.Graphics; -import java.awt.Graphics2D; import java.awt.GraphicsConfiguration; import java.awt.Image; import java.awt.Paint; diff --git a/status.xml b/status.xml index c5448e477..ff374e905 100644 --- a/status.xml +++ b/status.xml @@ -16,8 +16,7 @@ limitations under the License. --> - + @@ -80,6 +79,8 @@ When restarting layout for the last page, discard glues and penalties at the beginning of the restarted Knuth sequence. + + Fix errors and warnings in example files. Add build.xml for documentation examples. @@ -104,7 +105,7 @@ Fix newly introduced findbugs warnings. - + Support use of ImageLoaderRawPNG decoder in order to prevent re-encoding of PNG images (and unnecssary output file bloat). @@ -122,7 +123,7 @@ Add version attribute to AT and IF intermediate formats. Also eliminate redundant use of reversed attribute in AT format. - + Add extension to place code just before PostScript %PageTrailer. @@ -158,13 +159,14 @@ Unify date formatting between FOP and XGC as well as tidying the date format code. - - Break before (break-before) not respected on blocks nested in inlines. + + Fix for break before (break-before) not respected on blocks nested in inlines. Fix for XGC when rendering PostScript using SVG being drawn upside down when using a custom affine transform. - + + Use new double format utility to improve thread safety and performance. @@ -205,16 +207,16 @@ Add run target for embedded examples. Add increased JVM memory heap flag for example8 in case font cache is rebuilt. - - Update to use of checkstyle-5.5 as default configuration. Remove checkstyle-4.0 configuration. Also, import environment build properties before local properties, so that latter can refer to former.' + + Update to use of checkstyle-5.5 as default configuration. Remove checkstyle-4.0 configuration. Also, import environment build properties before local properties, so that latter can refer to former. Prevent NPE on use of unsupported collapse-with-precedence; fall back to collapse. Fix checkstyle errors from prior commit. - + Ensure square image is appropriately scaled. - + Invoke JVM in headless mode from FOP command scripts and JS shell to prevent stealing focus from GUI applications. @@ -223,7 +225,7 @@ A global setting to wrap F11 images in page segments. - + Support list-block in marker, thus preventing NPE. @@ -243,7 +245,7 @@ How to use native text with EPSDocumentGraphics2D. - + Allow https scheme URI for PDF external action target. @@ -264,10 +266,10 @@ Specified rule-thickness applies only when leader-pattern is rule, otherwise should use default thickness. - + Eliminate duplicate code. - + Correct coding error in AFPResourceLevel#equals. @@ -279,10 +281,11 @@ Fixed small memory waste in rowCells array construction. - + Fixed incorrect rejection of fo:wrapper inside fo:inline inside fo:footnote-body. - + + Added support for PDF Object Streams. When accessibility is enabled and PDF version 1.5 selected, the structure tree will be stored in object streams in order to reduce the size of the final PDF. @@ -290,31 +293,32 @@ Fixed deadlock in PropertyCache. - + Added configuration option to set the version of the output PDF document. - - Fixed bug that caused a configured and installed SVG font to stroked, + + Fixed bug that caused a configured and installed SVG font to be stroked, also added an event indicating when fonts are stroked. Fix of a bug introduced when merging ImproveAccessibility. - - Improved support for empty flow-name mapping (see bugzilla#50391). + + Improved support for empty flow-name mapping. - + Add support for complex scripts, including: full bidi support, support for advanced typographic tables, advanced support for number conversion. - + Add support for OpenType advanced typographic tables (GDEF, GSUB, GPOS). Fixed rendering of special glyphs when using single-byte encoding mode. - - Improvements of the Accessibility feature + + + Improvements of the Accessibility features. Suppress unnecessary "font not found warnings" when generating AFP with raster fonts @@ -322,7 +326,7 @@ SVG text in AFP creates miscoded GOCA text - + Add support for different flow-name of fo:region-body in FOP @@ -338,7 +342,7 @@ Added to build file JUnit target that uses a regex to run all of the test cases. This reduces the risk that some of them are omitted when building FOP. - + Allow JPEG images to be embedded in an AFP document as is, without being decoded and encoded. @@ -348,18 +352,18 @@ Various bugfixes to make PDFDocumentGraphics2D operational again. - - Bugfix for when the last simple-page-master referenced in a page-sequence-master is not + + Fix for when the last simple-page-master referenced in a page-sequence-master is not chosen when force-page-count=odd. - + Upgraded all tests to JUnit 4. Bugfix for color model in IOCA IDE structure parameter for 4- and 8-bit grayscale images. Revision 4. - + Changes the way PostScript handles Graphics2D images such that if the language is set to level 3, the image is stored as an embedded file which has no length limit. Previously it was stored as an array which has a implementation limit of 65535 elements. @@ -367,7 +371,7 @@ PDFFactory responsible for asdigning name to a subset font. - + Improved support for EBCDIC encoded double byte fonts fo AFP. @@ -382,8 +386,8 @@ Fixed a bug in AFP where an ArrayOutofBoundsException is throwqn when embedding a Page Segment. - - Added support for 128bit encryption in PDF output. Based on work by Michael Rubin. + + Added support for 128bit encryption in PDF output. Fixed a bug in AFP where the object area axes of an Include Object was incorrectly set when @@ -399,12 +403,12 @@ Fixed a multi-threading bug for SVG images included through svg:image inside SVG documents. - + Added an IFDocumentHandler filter for triggering rendering events. Created an Event that captures an end page event with the page number. - Bugfix: alternative text not working in tagged PDF for TIFF images. + Fix for alternative text not working in tagged PDF for TIFF images. Fixed io exception in MODCAParser caused by the improper use of mark() and reset() on the @@ -418,18 +422,18 @@ AFP GOCA: fonts were not embedded from within AFPGraphics2D. - + AFP GOCA: Changed the way FOP fonts are selected based on Batik's GVT fonts to match the behaviour of PDF/PS output. - + Added option to place AFP NOPs right before the end of a named page group (page-sequence), rather than after the start. - + Added option for PostScript output to optimize for file size rather than quality. - + AFP GOCA: Added option to disable GOCA and to control text painting inside GOCA graphics. @@ -469,26 +473,26 @@ Bugzilla 50965: Fixed a regression in BlockContainerLayoutManager where margins were no longer reset after forced breaks. - + Implemented non-standard behavior for basic-link areas, such that they take into account the heights of their descendants areas. - - Bugfix: keep-together does not apply to fo:table-cell. + + Fix for keep-together does not apply to fo:table-cell. - - Bugfix: keep-together on a table containing row-spanning cells was not honored. + + Fix for keep-together on a table containing row-spanning cells that was not honored. - - Bugzilla #50196: padding-start ignored when table-header/footer is repeated. + + Fix forpadding-start ignored when table-header/footer is repeated. - + Increased maximum possible PDF size from 2GB to around 9GB (hard maximum imposed by the PDF specification). - + Added support for CIE Lab colors (from XSL-FO 2.0 WD). - + Initial work on spot colors (aka named colors) for PDF output. @@ -498,39 +502,39 @@ Added support for lookup of alternative glyphs when additional single-byte encodings are used, ex. replacing "Omegagreek" by "Omega" and vice versa. - + Added support for resolution of relative URIs against a specified xml:base during property refinement. Allow afp:no-operation to also appear under fo:page-sequence and fo:declarations. - - Bugfix: fix issue in RenderPagesModel.checkPreparedPages() where the same page-sequence + + Fix for issue in RenderPagesModel.checkPreparedPages() where the same page-sequence is potentially started multiple times. - - Bugfix: fix performance issue when adding pages, if the total number of pages + + Fix for performance issue when adding pages, if the total number of pages is significantly large. - - Bugfix: fix performance issue when adding nodes, if the number of children + + Fix for performance issue when adding nodes, if the number of children is significantly large. - Bugfix: relative URIs in the configuration file (base, font-base, hyphenation-base) are evaluated relative to the base URI of the configuration file. + Fix for relative URIs in the configuration file (base, font-base, hyphenation-base) are evaluated relative to the base URI of the configuration file. - - Bugfix: correct behavior of keep-together.within-line in case there are nested inlines + + Fix for correct behavior of keep-together.within-line in case there are nested inlines - Bugfix: avoid ArrayIndexOutOfBoundsException for codepoints without a linebreak class + Fix for avoid ArrayIndexOutOfBoundsException for codepoints without a linebreak class - Bugfix: avoid ClassCastException when using fox:widow-content-limit + Fix for avoid ClassCastException when using fox:widow-content-limit - Bugfix: content after forced break in block-container is not rendered. + Fix for content after forced break in block-container is not rendered. Fixed adjustment of inline parent area for justified text containing a forward page reference. @@ -541,13 +545,13 @@ Replaced magic numbers with constants from UnitConv and GraphicsConstants. - + Added some support for break-before/-after for RTF output. - + Added ability to embed an external AFP page segment resource file (AFP output only). - + Fixed a multi-threading issue when rendering SVG. @@ -557,10 +561,10 @@ Removed old Renderer implementations for those output formats that have a version based on the new DocumentHandler architecture available (AFP, PCL, PDF, PS). - + Reinstated support for being able to specify a font cache filepath in the fop user configuration. - + Added convenience support for the flushing of the Fop font cache file from the command line. @@ -1900,7 +1904,7 @@ Bugfix: NullPointerException in RTF output when a table does not contain table-columns. - + Bugfix: NullPointerException in RTF library when there are no borders on the parent table. -- cgit v1.2.3
This Candidate Release
Repository URL + + http://svn.apache.org/repos/asf/xmlgraphics/fop/tags/fop-1_1rc1/ + +
Web view + + http://svn.apache.org/viewvc/xmlgraphics/fop/tags/fop-1_1rc1/ + +

Latest Stable Release
Repository URL - + http://svn.apache.org/repos/asf/xmlgraphics/fop/tags/fop-0_95/

PDF (Library and Renderer) stable (SVG: stable) stable

PostScript stable (SVG: stable with restrictions) stable

Java2D, AWT, Bitmap Renderers