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- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
- /* $Id$ */
-
- package org.apache.fop.pdf;
-
- // Java
- import java.awt.geom.Point2D;
- import java.awt.geom.Rectangle2D;
- import java.io.ByteArrayInputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.net.URI;
- import java.net.URISyntaxException;
- import java.text.DecimalFormat;
- import java.util.ArrayList;
- import java.util.Arrays;
- import java.util.BitSet;
- import java.util.HashMap;
- import java.util.Iterator;
- import java.util.List;
- import java.util.Map;
- import java.util.SortedSet;
- import java.util.TreeSet;
-
- import org.apache.commons.io.IOUtils;
- import org.apache.commons.io.output.ByteArrayOutputStream;
- import org.apache.commons.logging.Log;
- import org.apache.commons.logging.LogFactory;
-
- import org.apache.xmlgraphics.java2d.color.NamedColorSpace;
- import org.apache.xmlgraphics.xmp.Metadata;
-
- import org.apache.fop.fonts.CIDFont;
- import org.apache.fop.fonts.CodePointMapping;
- import org.apache.fop.fonts.CustomFont;
- import org.apache.fop.fonts.EmbeddingMode;
- import org.apache.fop.fonts.FontDescriptor;
- import org.apache.fop.fonts.FontMetrics;
- import org.apache.fop.fonts.FontType;
- import org.apache.fop.fonts.LazyFont;
- import org.apache.fop.fonts.MultiByteFont;
- import org.apache.fop.fonts.SimpleSingleByteEncoding;
- import org.apache.fop.fonts.SingleByteEncoding;
- import org.apache.fop.fonts.SingleByteFont;
- import org.apache.fop.fonts.Typeface;
- import org.apache.fop.fonts.truetype.FontFileReader;
- import org.apache.fop.fonts.truetype.OFFontLoader;
- import org.apache.fop.fonts.truetype.OTFSubSetFile;
- import org.apache.fop.fonts.truetype.TTFSubSetFile;
- import org.apache.fop.fonts.type1.PFBData;
- import org.apache.fop.fonts.type1.PFBParser;
- import org.apache.fop.fonts.type1.Type1SubsetFile;
-
- /**
- * This class provides method to create and register PDF objects.
- */
- public class PDFFactory {
-
- /** Resolution of the User Space coordinate system (72dpi). */
- public static final int DEFAULT_PDF_RESOLUTION = 72;
-
- private PDFDocument document;
-
- private Log log = LogFactory.getLog(PDFFactory.class);
-
- private int subsetFontCounter = -1;
- private Map<String, PDFDPart> dparts = new HashMap<String, PDFDPart>();
-
- /**
- * Creates a new PDFFactory.
- * @param document the parent PDFDocument needed to register the generated
- * objects
- */
- public PDFFactory(PDFDocument document) {
- this.document = document;
- }
-
- /**
- * Returns the parent PDFDocument associated with this factory.
- * @return PDFDocument the parent PDFDocument
- */
- public final PDFDocument getDocument() {
- return this.document;
- }
-
- /* ========================= structure objects ========================= */
-
- /**
- * Make a /Catalog (Root) object. This object is written in
- * the trailer.
- *
- * @param pages the pages pdf object that the root points to
- * @return the new pdf root object for this document
- */
- public PDFRoot makeRoot(PDFPages pages) {
- //Make a /Pages object. This object is written in the trailer.
- PDFRoot pdfRoot = new PDFRoot(document, pages);
- pdfRoot.setDocument(getDocument());
- getDocument().addTrailerObject(pdfRoot);
- return pdfRoot;
- }
-
- /**
- * Make a /Pages object. This object is written in the trailer.
- *
- * @return a new PDF Pages object for adding pages to
- */
- public PDFPages makePages() {
- PDFPages pdfPages = new PDFPages(getDocument());
- pdfPages.setDocument(getDocument());
- getDocument().addTrailerObject(pdfPages);
- return pdfPages;
- }
-
- /**
- * Make a /Resources object. This object is written in the trailer.
- *
- * @return a new PDF resources object
- */
- public PDFResources makeResources() {
- PDFResources pdfResources = new PDFResources(getDocument());
- pdfResources.setDocument(getDocument());
- getDocument().addTrailerObject(pdfResources);
- return pdfResources;
- }
-
- /**
- * make an /Info object
- *
- * @param prod string indicating application producing the PDF
- * @return the created /Info object
- */
- protected PDFInfo makeInfo(String prod) {
-
- /*
- * create a PDFInfo with the next object number and add to
- * list of objects
- */
- PDFInfo pdfInfo = new PDFInfo();
- // set the default producer
- pdfInfo.setProducer(prod);
- getDocument().registerObject(pdfInfo);
- return pdfInfo;
- }
-
- /**
- * Make a Metadata object.
- * @param meta the DOM Document containing the XMP metadata.
- * @param readOnly true if the metadata packet should be marked read-only
- * @return the newly created Metadata object
- */
- public PDFMetadata makeMetadata(Metadata meta, boolean readOnly) {
- PDFMetadata pdfMetadata = new PDFMetadata(meta, readOnly);
- getDocument().registerObject(pdfMetadata);
- return pdfMetadata;
- }
-
- /**
- * Make a OutputIntent dictionary.
- * @return the newly created OutputIntent dictionary
- */
- public PDFOutputIntent makeOutputIntent() {
- PDFOutputIntent outputIntent = new PDFOutputIntent();
- getDocument().registerObject(outputIntent);
- return outputIntent;
- }
-
- /**
- * Make a /Page object. The page is assigned an object number immediately
- * so references can already be made. The page must be added to the
- * PDFDocument later using addObject().
- *
- * @param resources resources object to use
- * @param pageIndex index of the page (zero-based)
- * @param mediaBox the MediaBox area
- * @param cropBox the CropBox area
- * @param bleedBox the BleedBox area
- * @param trimBox the TrimBox area
- *
- * @return the created /Page object
- */
- public PDFPage makePage(PDFResources resources, int pageIndex,
- Rectangle2D mediaBox, Rectangle2D cropBox,
- Rectangle2D bleedBox, Rectangle2D trimBox) {
- /*
- * create a PDFPage with the next object number, the given
- * resources, contents and dimensions
- */
- PDFPage page = new PDFPage(resources, pageIndex, mediaBox, cropBox, bleedBox, trimBox);
- getDocument().assignObjectNumber(page);
- getDocument().getPages().addPage(page);
- return page;
- }
-
- /**
- * Make a /Page object. The page is assigned an object number immediately
- * so references can already be made. The page must be added to the
- * PDFDocument later using addObject().
- *
- * @param resources resources object to use
- * @param pageWidth width of the page in points
- * @param pageHeight height of the page in points
- * @param pageIndex index of the page (zero-based)
- *
- * @return the created /Page object
- */
- public PDFPage makePage(PDFResources resources,
- int pageWidth, int pageHeight, int pageIndex) {
- Rectangle2D mediaBox = new Rectangle2D.Double(0, 0, pageWidth, pageHeight);
- return makePage(resources, pageIndex, mediaBox, mediaBox, mediaBox, mediaBox);
- }
-
- /**
- * Make a /Page object. The page is assigned an object number immediately
- * so references can already be made. The page must be added to the
- * PDFDocument later using addObject().
- *
- * @param resources resources object to use
- * @param pageWidth width of the page in points
- * @param pageHeight height of the page in points
- *
- * @return the created /Page object
- */
- public PDFPage makePage(PDFResources resources,
- int pageWidth, int pageHeight) {
- return makePage(resources, pageWidth, pageHeight, -1);
- }
-
- /* ========================= functions ================================= */
-
- /**
- * make a type Exponential interpolation function
- * (for shading usually)
- * @param domain List objects of Double objects.
- * This is the domain of the function.
- * See page 264 of the PDF 1.3 Spec.
- * @param range List of Doubles that is the Range of the function.
- * See page 264 of the PDF 1.3 Spec.
- * @param cZero This is a vector of Double objects which defines the function result
- * when x=0.
- *
- * This attribute is optional.
- * It's described on page 268 of the PDF 1.3 spec.
- * @param cOne This is a vector of Double objects which defines the function result
- * when x=1.
- *
- * This attribute is optional.
- * It's described on page 268 of the PDF 1.3 spec.
- * @param interpolationExponentN This is the inerpolation exponent.
- *
- * This attribute is required.
- * PDF Spec page 268
- *
- * @return the PDF function that was created
- */
- public PDFFunction makeFunction(List domain, List range, float[] cZero, float[] cOne,
- double interpolationExponentN) {
- PDFFunction function = new PDFFunction(domain, range, cZero, cOne, interpolationExponentN);
- function = registerFunction(function);
- return function;
- }
-
- /**
- * Registers a function against the document
- * @param function The function to register
- */
- public PDFFunction registerFunction(PDFFunction function) {
- PDFFunction oldfunc = getDocument().findFunction(function);
- if (oldfunc == null) {
- getDocument().registerObject(function);
- } else {
- function = oldfunc;
- }
- return function;
- }
-
- /* ========================= shadings ================================== */
-
- /**
- * Registers a shading object against the document
- * @param res The PDF resource context
- * @param shading The shading object to be registered
- */
- public PDFShading registerShading(PDFResourceContext res, PDFShading shading) {
- PDFShading oldshad = getDocument().findShading(shading);
- if (oldshad == null) {
- getDocument().registerObject(shading);
- } else {
- shading = oldshad;
- }
-
- // add this shading to resources
- if (res != null) {
- res.addShading(shading);
- }
- return shading;
- }
-
- /* ========================= patterns ================================== */
-
- /**
- * Make a tiling pattern
- *
- * @param res the PDF resource context to add the shading, may be null
- * @param thePatternType the type of pattern, which is 1 for tiling.
- * @param theResources the resources associated with this pattern
- * @param thePaintType 1 or 2, colored or uncolored.
- * @param theTilingType 1, 2, or 3, constant spacing, no distortion, or faster tiling
- * @param theBBox List of Doubles: The pattern cell bounding box
- * @param theXStep horizontal spacing
- * @param theYStep vertical spacing
- * @param theMatrix Optional List of Doubles transformation matrix
- * @param theXUID Optional vector of Integers that uniquely identify the pattern
- * @param thePatternDataStream The stream of pattern data to be tiled.
- * @return the PDF pattern that was created
- */
- public PDFPattern makePattern(PDFResourceContext res, int thePatternType,
- PDFResources theResources, int thePaintType, int theTilingType,
- List theBBox, double theXStep,
- double theYStep, List theMatrix,
- List theXUID, StringBuffer thePatternDataStream) {
- // PDFResources theResources
- PDFPattern pattern = new PDFPattern(theResources, 1,
- thePaintType, theTilingType,
- theBBox, theXStep, theYStep,
- theMatrix, theXUID,
- thePatternDataStream);
-
- PDFPattern oldpatt = getDocument().findPattern(pattern);
- if (oldpatt == null) {
- getDocument().registerObject(pattern);
- } else {
- pattern = oldpatt;
- }
-
- if (res != null) {
- res.addPattern(pattern);
- }
-
- return (pattern);
- }
-
- public PDFPattern registerPattern(PDFResourceContext res, PDFPattern pattern) {
- PDFPattern oldpatt = getDocument().findPattern(pattern);
- if (oldpatt == null) {
- getDocument().registerObject(pattern);
- } else {
- pattern = oldpatt;
- }
-
- if (res != null) {
- res.addPattern(pattern);
- }
- return pattern;
- }
-
-
- /* ============= named destinations and the name dictionary ============ */
-
- /**
- * Registers and returns newdest if it is unique. Otherwise, returns
- * the equal destination already present in the document.
- *
- * @param newdest a new, as yet unregistered destination
- * @return newdest if unique, else the already registered instance
- */
- protected PDFDestination getUniqueDestination(PDFDestination newdest) {
- PDFDestination existing = getDocument().findDestination(newdest);
- if (existing != null) {
- return existing;
- } else {
- getDocument().addDestination(newdest);
- return newdest;
- }
- }
-
- /**
- * Make a named destination.
- *
- * @param idRef ID Reference for this destination (the name of the destination)
- * @param goToRef Object reference to the GoTo Action
- * @return the newly created destrination
- */
- public PDFDestination makeDestination(String idRef, Object goToRef) {
- PDFDestination destination = new PDFDestination(idRef, goToRef);
- return getUniqueDestination(destination);
- }
-
- /**
- * Make a names dictionary (the /Names object).
- * @return the new PDFNames object
- */
- public PDFNames makeNames() {
- PDFNames names = new PDFNames();
- getDocument().assignObjectNumber(names);
- getDocument().addTrailerObject(names);
- return names;
- }
-
- /**
- * Make a names dictionary (the /PageLabels object).
- * @return the new PDFPageLabels object
- */
- public PDFPageLabels makePageLabels() {
- PDFPageLabels pageLabels = new PDFPageLabels();
- getDocument().assignObjectNumber(pageLabels);
- getDocument().addTrailerObject(pageLabels);
- return pageLabels;
- }
-
- /**
- * Make a the head object of the name dictionary (the /Dests object).
- *
- * @param destinationList a list of PDFDestination instances
- * @return the new PDFDests object
- */
- public PDFDests makeDests(List destinationList) {
- PDFDests dests;
-
- //TODO: Check why the below conditional branch is needed. Condition is always true...
- final boolean deep = true;
- //true for a "deep" structure (one node per entry), true for a "flat" structure
- if (deep) {
- dests = new PDFDests();
- PDFArray kids = new PDFArray(dests);
- for (Object aDestinationList : destinationList) {
- PDFDestination dest = (PDFDestination) aDestinationList;
- PDFNameTreeNode node = new PDFNameTreeNode();
- getDocument().registerObject(node);
- node.setLowerLimit(dest.getIDRef());
- node.setUpperLimit(dest.getIDRef());
- node.setNames(new PDFArray(node));
- PDFArray names = node.getNames();
- names.add(dest);
- kids.add(node);
- }
- dests.setLowerLimit(((PDFNameTreeNode)kids.get(0)).getLowerLimit());
- dests.setUpperLimit(((PDFNameTreeNode)kids.get(kids.length() - 1)).getUpperLimit());
- dests.setKids(kids);
- } else {
- dests = new PDFDests(destinationList);
- }
- getDocument().registerObject(dests);
- return dests;
- }
-
- /**
- * Make a name tree node.
- *
- * @return the new name tree node
- */
- public PDFNameTreeNode makeNameTreeNode() {
- PDFNameTreeNode node = new PDFNameTreeNode();
- getDocument().registerObject(node);
- return node;
- }
-
- /* ========================= links ===================================== */
- // Some of the "yoffset-only" functions in this part are obsolete and can
- // possibly be removed or deprecated. Some are still called by PDFGraphics2D
- // (although that could be changed, they don't need the yOffset param anyway).
-
- /**
- * Create a PDF link to an existing PDFAction object
- *
- * @param rect the hotspot position in absolute coordinates
- * @param pdfAction the PDFAction that this link refers to
- * @return the new PDFLink object, or null if either rect or pdfAction is null
- */
- public PDFLink makeLink(Rectangle2D rect, PDFAction pdfAction) {
- if (rect == null || pdfAction == null) {
- return null;
- } else {
- PDFLink link = new PDFLink(rect);
- link.setAction(pdfAction);
- getDocument().registerObject(link);
- return link;
- // does findLink make sense? I mean, how often will it happen that several
- // links have the same target *and* the same hot rect? And findLink has to
- // walk and compare the entire link list everytime you call it...
- }
- }
-
- /**
- * Make an internal link.
- *
- * @param rect the hotspot position in absolute coordinates
- * @param page the target page reference value
- * @param dest the position destination
- * @return the new PDF link object
- */
- public PDFLink makeLink(Rectangle2D rect, String page, String dest) {
- PDFLink link = new PDFLink(rect);
- getDocument().registerObject(link);
-
- PDFGoTo gt = new PDFGoTo(page);
- gt.setDestination(dest);
- getDocument().registerObject(gt);
- PDFInternalLink internalLink = new PDFInternalLink(gt.referencePDF());
- link.setAction(internalLink);
-
- return link;
- }
-
- /**
- * Make a {@link PDFLink} object
- *
- * @param rect the clickable rectangle
- * @param destination the destination file
- * @param linkType the link type
- * @param yoffset the yoffset on the page for an internal link
- * @return the PDFLink object created
- */
- public PDFLink makeLink(Rectangle2D rect, String destination,
- int linkType, float yoffset) {
-
- //PDFLink linkObject;
- PDFLink link = new PDFLink(rect);
-
- if (linkType == PDFLink.EXTERNAL) {
- link.setAction(getExternalAction(destination, false));
- } else {
- // linkType is internal
- String goToReference = getGoToReference(destination, yoffset);
- PDFInternalLink internalLink = new PDFInternalLink(goToReference);
- link.setAction(internalLink);
- }
-
- PDFLink oldlink = getDocument().findLink(link);
- if (oldlink == null) {
- getDocument().registerObject(link);
- } else {
- link = oldlink;
- }
-
- return link;
- }
-
- /**
- * Create/find and return the appropriate external PDFAction according to the target
- *
- * @param target The external target. This may be a PDF file name
- * (optionally with internal page number or destination) or any type of URI.
- * @param newWindow boolean indicating whether the target should be
- * displayed in a new window
- * @return the PDFAction thus created or found
- */
- public PDFAction getExternalAction(String target, boolean newWindow) {
- URI uri = getTargetUri(target);
- if (uri != null) {
- String scheme = uri.getScheme();
- String filename = uri.getPath();
- if (filename == null) {
- filename = uri.getSchemeSpecificPart();
- }
- if (scheme == null) {
- return new PDFUri(uri.toASCIIString());
- } else if (scheme.equalsIgnoreCase("embedded-file")) {
- return getActionForEmbeddedFile(filename, newWindow);
- } else if (scheme.equalsIgnoreCase("file")) {
- if (filename.startsWith("//")) {
- filename = filename.replace("/", "\\");
- } else if (filename.matches("^/[A-z]:/.*")) {
- filename = filename.substring(1);
- }
- if (filename.toLowerCase().endsWith(".pdf")) {
- int page = -1;
- String dest = null;
- String fragment = uri.getFragment();
- if (fragment != null) {
- String fragmentLo = fragment.toLowerCase();
- if (fragmentLo.startsWith("page=")) {
- page = Integer.parseInt(fragmentLo.substring(5));
- } else if (fragmentLo.startsWith("dest=")) {
- dest = fragment.substring(5);
- }
- }
- return getGoToPDFAction(filename, dest, page, newWindow);
- } else {
- if (uri.getQuery() != null || uri.getFragment() != null) {
- return new PDFUri(uri.toASCIIString());
- } else {
- return getLaunchAction(filename, newWindow);
- }
- }
- } else {
- return new PDFUri(uri.toASCIIString());
- }
- }
- return new PDFUri(target);
- }
-
- private URI getTargetUri(String target) {
- URI uri;
- try {
- uri = new URI(target);
- String scheme = uri.getScheme();
- String schemeSpecificPart = uri.getSchemeSpecificPart();
- String authority = uri.getAuthority();
- if (scheme == null && schemeSpecificPart.matches("//.*")) {
- uri = getFileUri(target);
- } else if ((scheme == null) && schemeSpecificPart.matches("/.*")) {
- uri = getFileUri(target);
- } else if (scheme != null && scheme.matches("[A-z]")) {
- uri = getFileUri(target);
- } else if (scheme != null && scheme.equalsIgnoreCase("file") && authority != null) {
- uri = getFileUri(target);
- }
- } catch (URISyntaxException e) {
- uri = getFileUri(target);
- }
- return uri;
- }
-
- private URI getFileUri(String target) {
- URI uri;
- String scheme = null;
- String fragment = null;
- String filename = target;
- int index;
- String targetLo = target.toLowerCase();
- if (((index = targetLo.indexOf(".pdf#page=")) > 0)
- || ((index = targetLo.indexOf(".pdf#dest=")) > 0)) {
- filename = target.substring(0, index + 4);
- fragment = target.substring(index + 5);
- }
-
- if (targetLo.startsWith("file://")) {
- scheme = "file";
- filename = filename.substring("file://".length());
- } else if (targetLo.startsWith("embedded-file:")) {
- scheme = "embedded-file";
- filename = filename.substring("embedded-file:".length());
- } else if (targetLo.startsWith("file:")) {
- scheme = "file";
- filename = filename.substring("file:".length());
- }
-
- try {
- filename = filename.replace("\\", "/");
- if (filename.matches("[A-z]:.*")) {
- scheme = (scheme == null) ? "file" : scheme;
- filename = "/" + filename;
- } else if (filename.matches("//.*")) {
- scheme = (scheme == null) ? "file" : scheme;
- filename = "//" + filename;
- } else if (filename.matches("/.*")) {
- scheme = (scheme == null) ? "file" : scheme;
- }
- uri = new URI(scheme, filename, fragment);
- } catch (URISyntaxException e) {
- throw new IllegalStateException(e);
- }
-
- return uri;
- }
-
- private PDFAction getActionForEmbeddedFile(String filename, boolean newWindow) {
- PDFNames names = getDocument().getRoot().getNames();
- if (names == null) {
- throw new IllegalStateException(
- "No Names dictionary present."
- + " Cannot create Launch Action for embedded file: " + filename);
- }
- PDFNameTreeNode embeddedFiles = names.getEmbeddedFiles();
- if (embeddedFiles == null) {
- throw new IllegalStateException(
- "No /EmbeddedFiles name tree present."
- + " Cannot create Launch Action for embedded file: " + filename);
- }
-
- //Find filespec reference for the embedded file
- filename = PDFText.toPDFString(filename, '_');
- PDFArray files = embeddedFiles.getNames();
- PDFReference embeddedFileRef = null;
- int i = 0;
- while (i < files.length()) {
- String name = (String)files.get(i);
- i++;
- PDFReference ref = (PDFReference)files.get(i);
- if (name.equals(filename)) {
- embeddedFileRef = ref;
- break;
- }
- i++;
- }
- if (embeddedFileRef == null) {
- throw new IllegalStateException(
- "No embedded file with name " + filename + " present.");
- }
-
- //Finally create the action
- //PDFLaunch action = new PDFLaunch(embeddedFileRef);
- //This works with Acrobat 8 but not with Acrobat 9
-
- //The following two options didn't seem to have any effect.
- //PDFGoToEmbedded action = new PDFGoToEmbedded(embeddedFileRef, 0, newWindow);
- //PDFGoToRemote action = new PDFGoToRemote(embeddedFileRef, 0, newWindow);
-
- //This finally seems to work:
- StringBuffer scriptBuffer = new StringBuffer();
- scriptBuffer.append("this.exportDataObject({cName:\"");
- scriptBuffer.append(filename);
- scriptBuffer.append("\", nLaunch:2});");
-
- PDFJavaScriptLaunchAction action = new PDFJavaScriptLaunchAction(scriptBuffer.toString());
- return action;
- }
-
- /**
- * Create or find a PDF GoTo with the given page reference string and Y offset,
- * and return its PDF object reference
- *
- * @param pdfPageRef the PDF page reference, e.g. "23 0 R"
- * @param yoffset the distance from the bottom of the page in points
- * @return the GoTo's object reference
- */
- public String getGoToReference(String pdfPageRef, float yoffset) {
- return getPDFGoTo(pdfPageRef, new Point2D.Float(0.0f, yoffset)).referencePDF();
- }
-
- /**
- * Finds and returns a PDFGoTo to the given page and position.
- * Creates the PDFGoTo if not found.
- *
- * @param pdfPageRef the PDF page reference
- * @param position the (X,Y) position in points
- *
- * @return the new or existing PDFGoTo object
- */
- public PDFGoTo getPDFGoTo(String pdfPageRef, Point2D position) {
- getDocument().getProfile().verifyActionAllowed();
- PDFGoTo gt = new PDFGoTo(pdfPageRef, position);
- PDFGoTo oldgt = getDocument().findGoTo(gt);
- if (oldgt == null) {
- getDocument().assignObjectNumber(gt);
- getDocument().addTrailerObject(gt);
- } else {
- gt = oldgt;
- }
- return gt;
- }
-
- /**
- * Create and return a goto pdf document action.
- * This creates a pdf files spec and pdf goto remote action.
- * It also checks available pdf objects so it will not create an
- * object if it already exists.
- *
- * @param file the pdf file name
- * @param dest the remote name destination, may be null
- * @param page the remote page number, -1 means not specified
- * @param newWindow boolean indicating whether the target should be
- * displayed in a new window
- * @return the pdf goto remote object
- */
- private PDFGoToRemote getGoToPDFAction(String file, String dest, int page, boolean newWindow) {
- getDocument().getProfile().verifyActionAllowed();
- PDFFileSpec fileSpec = new PDFFileSpec(file);
- PDFFileSpec oldspec = getDocument().findFileSpec(fileSpec);
- if (oldspec == null) {
- getDocument().registerObject(fileSpec);
- } else {
- fileSpec = oldspec;
- }
- PDFGoToRemote remote;
-
- if (dest == null && page == -1) {
- remote = new PDFGoToRemote(fileSpec, newWindow);
- } else if (dest != null) {
- remote = new PDFGoToRemote(fileSpec, dest, newWindow);
- } else {
- remote = new PDFGoToRemote(fileSpec, page, newWindow);
- }
- PDFGoToRemote oldremote = getDocument().findGoToRemote(remote);
- if (oldremote == null) {
- getDocument().registerObject(remote);
- } else {
- remote = oldremote;
- }
- return remote;
- }
-
- /**
- * Creates and returns a launch pdf document action using
- * <code>file</code> to create a file specification for
- * the document/file to be opened with an external application.
- *
- * @param file the pdf file name
- * @param newWindow boolean indicating whether the target should be
- * displayed in a new window
- * @return the pdf launch object
- */
- private PDFLaunch getLaunchAction(String file, boolean newWindow) {
- getDocument().getProfile().verifyActionAllowed();
-
- PDFFileSpec fileSpec = new PDFFileSpec(file);
- PDFFileSpec oldSpec = getDocument().findFileSpec(fileSpec);
-
- if (oldSpec == null) {
- getDocument().registerObject(fileSpec);
- } else {
- fileSpec = oldSpec;
- }
- PDFLaunch launch = new PDFLaunch(fileSpec, newWindow);
- PDFLaunch oldLaunch = getDocument().findLaunch(launch);
-
- if (oldLaunch == null) {
- getDocument().registerObject(launch);
- } else {
- launch = oldLaunch;
- }
-
- return launch;
- }
-
- /**
- * Make an outline object and add it to the given parent
- *
- * @param parent the parent PDFOutline object (may be null)
- * @param label the title for the new outline object
- * @param actionRef the action reference string to be placed after the /A
- * @param showSubItems whether to initially display child outline items
- * @return the new PDF outline object
- */
- public PDFOutline makeOutline(PDFOutline parent, String label,
- PDFReference actionRef, boolean showSubItems) {
- PDFOutline pdfOutline = new PDFOutline(label, actionRef, showSubItems);
- if (parent != null) {
- parent.addOutline(pdfOutline);
- }
- getDocument().registerObject(pdfOutline);
- return pdfOutline;
- }
-
- /**
- * Make an outline object and add it to the given parent
- *
- * @param parent the parent PDFOutline object (may be null)
- * @param label the title for the new outline object
- * @param pdfAction the action that this outline item points to - must not be null!
- * @param showSubItems whether to initially display child outline items
- * @return the new PDFOutline object, or null if pdfAction is null
- */
- public PDFOutline makeOutline(PDFOutline parent, String label,
- PDFAction pdfAction, boolean showSubItems) {
- return pdfAction == null
- ? null
- : makeOutline(parent, label, new PDFReference(pdfAction.getAction()), showSubItems);
- }
-
- // This one is obsolete now, at least it isn't called from anywhere inside FOP
- /**
- * Make an outline object and add it to the given outline
- *
- * @param parent parent PDFOutline object which may be null
- * @param label the title for the new outline object
- * @param destination the reference string for the action to go to
- * @param yoffset the yoffset on the destination page
- * @param showSubItems whether to initially display child outline items
- * @return the new PDF outline object
- */
- public PDFOutline makeOutline(PDFOutline parent, String label,
- String destination, float yoffset,
- boolean showSubItems) {
-
- String goToRef = getGoToReference(destination, yoffset);
- return makeOutline(parent, label, new PDFReference(goToRef), showSubItems);
- }
-
-
- /* ========================= fonts ===================================== */
-
- /**
- * make a /Encoding object
- *
- * @param encodingName character encoding scheme name
- * @return the created /Encoding object
- */
- public PDFEncoding makeEncoding(String encodingName) {
- PDFEncoding encoding = new PDFEncoding(encodingName);
-
- getDocument().registerObject(encoding);
- return encoding;
- }
-
- /**
- * Make a Type1 /Font object.
- *
- * @param fontname internal name to use for this font (eg "F1")
- * @param basefont name of the base font (eg "Helvetica")
- * @param encoding character encoding scheme used by the font
- * @param metrics additional information about the font
- * @param descriptor additional information about the font
- * @return the created /Font object
- */
- public PDFFont makeFont(String fontname, String basefont,
- String encoding, FontMetrics metrics,
- FontDescriptor descriptor) {
- PDFFont preRegisteredfont = getDocument().findFont(fontname);
- if (preRegisteredfont != null) {
- return preRegisteredfont;
- }
-
- boolean forceToUnicode = true;
-
- if (descriptor == null) {
- //Usually Base 14 fonts
- PDFFont font = new PDFFont(fontname, FontType.TYPE1, basefont, encoding);
- getDocument().registerObject(font);
- if (forceToUnicode && !PDFEncoding.isPredefinedEncoding(encoding)) {
- SingleByteEncoding mapping;
- if (encoding != null) {
- mapping = CodePointMapping.getMapping(encoding);
- } else {
- //for Symbol and ZapfDingbats where encoding must be null in PDF
- Typeface tf = (Typeface)metrics;
- mapping = CodePointMapping.getMapping(tf.getEncodingName());
- }
- generateToUnicodeCmap(font, mapping);
- }
- return font;
- } else {
- FontType fonttype = metrics.getFontType();
-
- String fontPrefix = descriptor.isSubsetEmbedded() ? createSubsetFontPrefix() : "";
-
- String subsetFontName = fontPrefix + basefont;
-
- PDFFontDescriptor pdfdesc = makeFontDescriptor(descriptor, fontPrefix);
-
- PDFFont font = null;
-
- font = PDFFont.createFont(fontname, fonttype, subsetFontName, null);
- if (descriptor instanceof RefPDFFont) {
- font.setObjectNumber(((RefPDFFont)descriptor).getRef().getObjectNumber());
- font.setDocument(getDocument());
- getDocument().addObject(font);
- } else {
- getDocument().registerObject(font);
- }
-
- if ((fonttype == FontType.TYPE0 || fonttype == FontType.CIDTYPE0)) {
- font.setEncoding(encoding);
- CIDFont cidMetrics;
- if (metrics instanceof LazyFont) {
- cidMetrics = (CIDFont)((LazyFont) metrics).getRealFont();
- } else {
- cidMetrics = (CIDFont)metrics;
- }
- PDFCIDSystemInfo sysInfo = new PDFCIDSystemInfo(cidMetrics.getRegistry(),
- cidMetrics.getOrdering(), cidMetrics.getSupplement());
- sysInfo.setDocument(document);
- assert pdfdesc instanceof PDFCIDFontDescriptor;
- PDFCIDFont cidFont = new PDFCIDFont(subsetFontName, cidMetrics.getCIDType(),
- cidMetrics.getDefaultWidth(), getFontWidths(cidMetrics), sysInfo,
- (PDFCIDFontDescriptor) pdfdesc);
- getDocument().registerObject(cidFont);
-
- PDFCMap cmap;
- if (cidMetrics instanceof MultiByteFont && ((MultiByteFont) cidMetrics).getCmapStream() != null) {
- cmap = new PDFCMap("fop-ucs-H", null);
- try {
- cmap.setData(IOUtils.toByteArray(((MultiByteFont) cidMetrics).getCmapStream()));
- } catch (IOException e) {
- throw new RuntimeException(e);
- }
- } else {
- cmap = new PDFToUnicodeCMap(cidMetrics.getCIDSet().getChars(), "fop-ucs-H",
- new PDFCIDSystemInfo("Adobe", "Identity", 0), false);
- }
- getDocument().registerObject(cmap);
- assert font instanceof PDFFontType0;
- ((PDFFontType0)font).setCMAP(cmap);
- ((PDFFontType0)font).setDescendantFonts(cidFont);
- } else if (fonttype == FontType.TYPE1C
- && (metrics instanceof LazyFont || metrics instanceof MultiByteFont)) {
- handleType1CFont(pdfdesc, font, metrics, fontname, basefont, descriptor);
- } else {
- assert font instanceof PDFFontNonBase14;
- PDFFontNonBase14 nonBase14 = (PDFFontNonBase14)font;
- nonBase14.setDescriptor(pdfdesc);
-
- SingleByteFont singleByteFont;
- if (metrics instanceof LazyFont) {
- singleByteFont = (SingleByteFont)((LazyFont)metrics).getRealFont();
- } else {
- singleByteFont = (SingleByteFont)metrics;
- }
-
- int firstChar = 0;
- int lastChar = 0;
- boolean defaultChars = false;
- if (singleByteFont.getEmbeddingMode() == EmbeddingMode.SUBSET) {
- Map<Integer, Integer> usedGlyphs = singleByteFont.getUsedGlyphs();
- if (fonttype == FontType.TYPE1 && usedGlyphs.size() > 0) {
- SortedSet<Integer> keys = new TreeSet<Integer>(usedGlyphs.keySet());
- keys.remove(0);
- if (keys.size() > 0) {
- firstChar = keys.first();
- lastChar = keys.last();
- int[] newWidths = new int[(lastChar - firstChar) + 1];
- for (int i = firstChar; i < lastChar + 1; i++) {
- if (usedGlyphs.get(i) != null) {
- if (i - singleByteFont.getFirstChar() < metrics.getWidths().length) {
- newWidths[i - firstChar] = metrics.getWidths()[i
- - singleByteFont.getFirstChar()];
- } else {
- defaultChars = true;
- break;
- }
- } else {
- newWidths[i - firstChar] = 0;
- }
- }
- nonBase14.setWidthMetrics(firstChar,
- lastChar,
- new PDFArray(null, newWidths));
- }
- } else {
- defaultChars = true;
- }
- } else {
- defaultChars = true;
- }
-
- if (defaultChars) {
- firstChar = singleByteFont.getFirstChar();
- lastChar = singleByteFont.getLastChar();
- nonBase14.setWidthMetrics(firstChar,
- lastChar,
- new PDFArray(null, metrics.getWidths()));
- }
-
- //Handle encoding
- SingleByteEncoding mapping = singleByteFont.getEncoding();
- if (singleByteFont.isSymbolicFont()) {
- //no encoding, use the font's encoding
- if (forceToUnicode) {
- generateToUnicodeCmap(nonBase14, mapping);
- }
- } else if (PDFEncoding.isPredefinedEncoding(mapping.getName())) {
- font.setEncoding(mapping.getName());
- //No ToUnicode CMap necessary if PDF 1.4, chapter 5.9 (page 368) is to be
- //believed.
- } else if (mapping.getName().equals("FOPPDFEncoding")) {
- if (fonttype == FontType.TRUETYPE) {
- font.setEncoding("WinAnsiEncoding");
- } else {
- String[] charNameMap = mapping.getCharNameMap();
- char[] intmap = mapping.getUnicodeCharMap();
- PDFArray differences = new PDFArray();
- int len = intmap.length;
- if (charNameMap.length < len) {
- len = charNameMap.length;
- }
- int last = 0;
- for (int i = 0; i < len; i++) {
- if (intmap[i] - 1 != last) {
- differences.add(intmap[i]);
- }
- last = intmap[i];
- differences.add(new PDFName(charNameMap[i]));
- }
- PDFEncoding pdfEncoding = new PDFEncoding(singleByteFont.getEncodingName());
- getDocument().registerObject(pdfEncoding);
- pdfEncoding.setDifferences(differences);
- font.setEncoding(pdfEncoding);
- if (mapping.getUnicodeCharMap() != null) {
- generateToUnicodeCmap(nonBase14, mapping);
- }
- }
- } else {
- Object pdfEncoding = createPDFEncoding(mapping,
- singleByteFont.getFontName());
- if (pdfEncoding instanceof PDFEncoding) {
- font.setEncoding((PDFEncoding)pdfEncoding);
- } else {
- font.setEncoding((String)pdfEncoding);
- }
- if (forceToUnicode) {
- generateToUnicodeCmap(nonBase14, mapping);
- }
- }
-
- //Handle additional encodings (characters outside the primary encoding)
- if (singleByteFont.hasAdditionalEncodings()) {
- for (int i = 0, c = singleByteFont.getAdditionalEncodingCount(); i < c; i++) {
- SimpleSingleByteEncoding addEncoding
- = singleByteFont.getAdditionalEncoding(i);
- String name = fontname + "_" + (i + 1);
- Object pdfenc = createPDFEncoding(addEncoding,
- singleByteFont.getFontName());
- PDFFontNonBase14 addFont = (PDFFontNonBase14)PDFFont.createFont(
- name, fonttype,
- basefont, pdfenc);
- addFont.setDescriptor(pdfdesc);
- addFont.setWidthMetrics(
- addEncoding.getFirstChar(),
- addEncoding.getLastChar(),
- new PDFArray(null, singleByteFont.getAdditionalWidths(i)));
- getDocument().registerObject(addFont);
- getDocument().getResources().addFont(addFont);
- if (forceToUnicode) {
- generateToUnicodeCmap(addFont, addEncoding);
- }
- }
- }
- }
-
- return font;
- }
- }
-
- private void handleType1CFont(PDFFontDescriptor pdfdesc, PDFFont font, FontMetrics metrics, String fontname,
- String basefont, FontDescriptor descriptor) {
- PDFFontNonBase14 nonBase14 = (PDFFontNonBase14)font;
- nonBase14.setDescriptor(pdfdesc);
- MultiByteFont singleByteFont;
- if (metrics instanceof LazyFont) {
- singleByteFont = (MultiByteFont)((LazyFont)metrics).getRealFont();
- } else {
- singleByteFont = (MultiByteFont)metrics;
- }
- Map<Integer, Integer> usedGlyphs = singleByteFont.getUsedGlyphs();
- SortedSet<Integer> keys = new TreeSet<Integer>(usedGlyphs.keySet());
- keys.remove(0);
- int count = keys.size();
- Iterator<String> usedGlyphNames = singleByteFont.getUsedGlyphNames().values().iterator();
- count = setupFontMetrics(nonBase14, pdfdesc, usedGlyphNames, 0, count, metrics);
- List<PDFFontNonBase14> additionalEncodings = addAdditionalEncodings(metrics, descriptor, fontname, basefont);
- for (int j = 0; j < additionalEncodings.size(); j++) {
- PDFFontNonBase14 additional = additionalEncodings.get(j);
- int start = 256 * (j + 1);
- count = setupFontMetrics(additional, pdfdesc, usedGlyphNames, start, count, metrics);
- }
- }
-
- private int setupFontMetrics(PDFFontNonBase14 font, PDFFontDescriptor pdfdesc,
- Iterator<String> usedGlyphNames, int start, int count, FontMetrics metrics) {
- font.setDescriptor(pdfdesc);
- PDFArray differences = new PDFArray();
- int firstChar = 0;
- differences.add(firstChar);
- int lastChar = Math.min(count, 255);
- int[] newWidths = new int[lastChar + 1];
- for (int i = 0; i < newWidths.length; i++) {
- newWidths[i] = metrics.getWidth(start + i, 1);
- differences.add(new PDFName(usedGlyphNames.next()));
- count--;
- }
- font.setWidthMetrics(firstChar,
- lastChar,
- new PDFArray(null, newWidths));
- PDFEncoding pdfEncoding = new PDFEncoding("WinAnsiEncoding");
- getDocument().registerTrailerObject(pdfEncoding);
- pdfEncoding.setDifferences(differences);
- font.setEncoding(pdfEncoding);
- return count;
- }
-
- private List<PDFFontNonBase14> addAdditionalEncodings(FontMetrics metrics, FontDescriptor descriptor,
- String fontname, String basefont) {
- List<PDFFontNonBase14> additionalEncodings = new ArrayList<PDFFontNonBase14>();
- FontType fonttype = metrics.getFontType();
- if (descriptor != null && (fonttype != FontType.TYPE0)) {
- CustomFont singleByteFont;
- if (metrics instanceof LazyFont) {
- singleByteFont = (CustomFont)((LazyFont)metrics).getRealFont();
- } else {
- singleByteFont = (CustomFont)metrics;
- }
- //Handle additional encodings (characters outside the primary encoding)
- if (singleByteFont.hasAdditionalEncodings()) {
- for (int i = additionalEncodings.size(),
- c = singleByteFont.getAdditionalEncodingCount(); i < c; i++) {
- SimpleSingleByteEncoding addEncoding
- = singleByteFont.getAdditionalEncoding(i);
- String name = fontname + "_" + (i + 1);
- Object pdfenc = createPDFEncoding(addEncoding, singleByteFont.getFontName());
- PDFFontNonBase14 addFont = (PDFFontNonBase14)PDFFont.createFont(
- name, fonttype,
- basefont, pdfenc);
- getDocument().registerObject(addFont);
- getDocument().getResources().addFont(addFont);
- additionalEncodings.add(addFont);
- }
- }
- }
- return additionalEncodings;
- }
-
- private void generateToUnicodeCmap(PDFFont font, SingleByteEncoding encoding) {
- PDFCMap cmap = new PDFToUnicodeCMap(encoding.getUnicodeCharMap(),
- "fop-ucs-H",
- new PDFCIDSystemInfo("Adobe", "Identity", 0), true);
- getDocument().registerObject(cmap);
- font.setToUnicode(cmap);
- }
-
- /**
- * Creates a PDFEncoding instance from a CodePointMapping instance.
- * @param encoding the code point mapping (encoding)
- * @param fontName ...
- * @return the PDF Encoding dictionary (or a String with the predefined encoding)
- */
- public Object createPDFEncoding(SingleByteEncoding encoding, String fontName) {
- return PDFEncoding.createPDFEncoding(encoding, fontName);
- }
-
- private PDFWArray getFontWidths(CIDFont cidFont) {
- // Create widths for reencoded chars
- PDFWArray warray = new PDFWArray();
- if (cidFont instanceof MultiByteFont && ((MultiByteFont)cidFont).getWidthsMap() != null) {
- Map<Integer, Integer> map = ((MultiByteFont)cidFont).getWidthsMap();
- for (Map.Entry<Integer, Integer> cid : map.entrySet()) {
- warray.addEntry(cid.getKey(), new int[] {cid.getValue()});
- }
- // List<Integer> l = new ArrayList<Integer>(map.keySet());
- // for (int i=0; i<map.size(); i++) {
- // int cid = l.get(i);
- // List<Integer> cids = new ArrayList<Integer>();
- // cids.add(map.get(cid));
- // while (i<map.size()-1 && l.get(i) + 1 == l.get(i + 1)) {
- // cids.add(map.get(l.get(i + 1)));
- // i++;
- // }
- // int[] cidsints = new int[cids.size()];
- // for (int j=0; j<cids.size(); j++) {
- // cidsints[j] = cids.get(j);
- // }
- // warray.addEntry(cid, cidsints);
- // }
- } else {
- int[] widths = cidFont.getCIDSet().getWidths();
- warray.addEntry(0, widths);
- }
- return warray;
- }
-
- private String createSubsetFontPrefix() {
- subsetFontCounter++;
- DecimalFormat counterFormat = new DecimalFormat("00000");
- String counterString = counterFormat.format(subsetFontCounter);
-
- // Subset prefix as described in chapter 5.5.3 of PDF 1.4
- StringBuffer sb = new StringBuffer("E");
-
- for (char c : counterString.toCharArray()) {
- // translate numbers to uppercase characters
- sb.append((char) (c + ('A' - '0')));
- }
- sb.append("+");
- return sb.toString();
- }
-
- /**
- * make a /FontDescriptor object
- *
- * @param desc the font descriptor
- * @param fontPrefix the String with which to prefix the font name
- * @return the new PDF font descriptor
- */
- private PDFFontDescriptor makeFontDescriptor(FontDescriptor desc, String fontPrefix) {
- PDFFontDescriptor descriptor = null;
-
- if (desc.getFontType() == FontType.TYPE0 || desc.getFontType() == FontType.CIDTYPE0) {
- // CID Font
- descriptor = new PDFCIDFontDescriptor(fontPrefix + desc.getEmbedFontName(),
- desc.getFontBBox(),
- desc.getCapHeight(),
- desc.getFlags(),
- desc.getItalicAngle(),
- desc.getStemV(), null);
- } else {
- // Create normal FontDescriptor
- descriptor = new PDFFontDescriptor(fontPrefix + desc.getEmbedFontName(),
- desc.getAscender(),
- desc.getDescender(),
- desc.getCapHeight(),
- desc.getFlags(),
- new PDFRectangle(desc.getFontBBox()),
- desc.getItalicAngle(),
- desc.getStemV());
- }
- getDocument().registerObject(descriptor);
-
- // Check if the font is embeddable
- if (desc.isEmbeddable()) {
- AbstractPDFStream stream = makeFontFile(desc, fontPrefix);
- if (stream != null) {
- descriptor.setFontFile(desc.getFontType(), stream);
- getDocument().registerObject(stream);
- }
- CustomFont font = getCustomFont(desc);
- if (font instanceof CIDFont) {
- CIDFont cidFont = (CIDFont)font;
- buildCIDSet(descriptor, cidFont);
- }
- }
- return descriptor;
- }
-
- private void buildCIDSet(PDFFontDescriptor descriptor, CIDFont cidFont) {
- BitSet cidSet = cidFont.getCIDSet().getGlyphIndices();
- PDFStream pdfStream = makeStream(null, true);
- ByteArrayOutputStream baout = new ByteArrayOutputStream(cidSet.length() / 8 + 1);
- int value = 0;
- for (int i = 0, c = cidSet.length(); i < c; i++) {
- int shift = i % 8;
- boolean b = cidSet.get(i);
- if (b) {
- value |= 1 << 7 - shift;
- }
- if (shift == 7) {
- baout.write(value);
- value = 0;
- }
- }
- baout.write(value);
- try {
- pdfStream.setData(baout.toByteArray());
- descriptor.setCIDSet(pdfStream);
- } catch (IOException ioe) {
- log.error(
- "Failed to write CIDSet [" + cidFont + "] "
- + cidFont.getEmbedFontName(), ioe);
- } finally {
- IOUtils.closeQuietly(baout);
- }
- }
-
- /**
- * Embeds a font.
- * @param desc FontDescriptor of the font.
- * @return PDFStream The embedded font file
- */
- public AbstractPDFStream makeFontFile(FontDescriptor desc, String fontPrefix) {
- if (desc.getFontType() == FontType.OTHER) {
- throw new IllegalArgumentException("Trying to embed unsupported font type: "
- + desc.getFontType());
- }
-
- CustomFont font = getCustomFont(desc);
-
- InputStream in = null;
- try {
- in = font.getInputStream();
- if (in == null) {
- return null;
- }
- AbstractPDFStream embeddedFont = null;
- if (desc.getFontType() == FontType.TYPE0) {
- MultiByteFont mbfont = (MultiByteFont) font;
- FontFileReader reader = new FontFileReader(in);
- byte[] fontBytes;
- String header = OFFontLoader.readHeader(reader);
- boolean isCFF = mbfont.isOTFFile();
- if (font.getEmbeddingMode() == EmbeddingMode.FULL) {
- fontBytes = reader.getAllBytes();
- if (isCFF) {
- //Ensure version 1.6 for full OTF CFF embedding
- document.setPDFVersion(Version.V1_6);
- }
- } else {
- fontBytes = getFontSubsetBytes(reader, mbfont, header, fontPrefix, desc,
- isCFF);
- }
- embeddedFont = getFontStream(font, fontBytes, isCFF);
- } else if (desc.getFontType() == FontType.TYPE1) {
- if (font.getEmbeddingMode() != EmbeddingMode.SUBSET) {
- embeddedFont = fullyEmbedType1Font(in);
- } else {
- assert font instanceof SingleByteFont;
- SingleByteFont sbfont = (SingleByteFont)font;
- Type1SubsetFile pfbFile = new Type1SubsetFile();
- byte[] subsetData = pfbFile.createSubset(in, sbfont);
- InputStream subsetStream = new ByteArrayInputStream(subsetData);
- PFBParser parser = new PFBParser();
- PFBData pfb = parser.parsePFB(subsetStream);
- embeddedFont = new PDFT1Stream();
- ((PDFT1Stream) embeddedFont).setData(pfb);
- }
- } else if (desc.getFontType() == FontType.TYPE1C) {
- if (font.getEmbeddingMode() == EmbeddingMode.SUBSET) {
- FontFileReader reader = new FontFileReader(in);
- String header = OFFontLoader.readHeader(reader);
- byte[] fontBytes = getFontSubsetBytes(reader, (MultiByteFont) font, header, fontPrefix, desc, true);
- embeddedFont = getFontStream(font, fontBytes, true);
- } else {
- byte[] file = IOUtils.toByteArray(in);
- PDFCFFStream embeddedFont2 = new PDFCFFStream("Type1C");
- embeddedFont2.setData(file);
- return embeddedFont2;
- }
- } else if (desc.getFontType() == FontType.CIDTYPE0) {
- byte[] file = IOUtils.toByteArray(in);
- PDFCFFStream embeddedFont2 = new PDFCFFStream("CIDFontType0C");
- embeddedFont2.setData(file);
- return embeddedFont2;
- } else {
- byte[] file = IOUtils.toByteArray(in);
- embeddedFont = new PDFTTFStream(file.length);
- ((PDFTTFStream) embeddedFont).setData(file, file.length);
- }
-
- /*
- embeddedFont.getFilterList().addFilter("flate");
- if (getDocument().isEncryptionActive()) {
- getDocument().applyEncryption(embeddedFont);
- } else {
- embeddedFont.getFilterList().addFilter("ascii-85");
- }*/
-
- return embeddedFont;
- } catch (IOException ioe) {
- log.error("Failed to embed font [" + desc + "] " + desc.getEmbedFontName(), ioe);
- return null;
- } finally {
- if (in != null) {
- IOUtils.closeQuietly(in);
- }
- }
- }
-
- private AbstractPDFStream fullyEmbedType1Font(InputStream in) throws IOException {
- PFBParser parser = new PFBParser();
- PFBData pfb = parser.parsePFB(in);
- AbstractPDFStream embeddedFont = new PDFT1Stream();
- ((PDFT1Stream) embeddedFont).setData(pfb);
- return embeddedFont;
- }
-
- private byte[] getFontSubsetBytes(FontFileReader reader, MultiByteFont mbfont, String header,
- String fontPrefix, FontDescriptor desc, boolean isCFF) throws IOException {
- if (isCFF) {
- OTFSubSetFile otfFile = new OTFSubSetFile();
- otfFile.readFont(reader, fontPrefix + desc.getEmbedFontName(), mbfont);
- return otfFile.getFontSubset();
- } else {
- TTFSubSetFile otfFile = new TTFSubSetFile();
- otfFile.readFont(reader, mbfont.getTTCName(), header, mbfont.getUsedGlyphs());
- return otfFile.getFontSubset();
- }
- }
-
- private AbstractPDFStream getFontStream(CustomFont font, byte[] fontBytes, boolean isCFF)
- throws IOException {
- AbstractPDFStream embeddedFont;
- if (isCFF) {
- embeddedFont = new PDFCFFStreamType0C(font);
- ((PDFCFFStreamType0C) embeddedFont).setData(fontBytes, fontBytes.length);
- } else {
- embeddedFont = new PDFTTFStream(fontBytes.length);
- ((PDFTTFStream) embeddedFont).setData(fontBytes, fontBytes.length);
- }
- return embeddedFont;
- }
-
- private CustomFont getCustomFont(FontDescriptor desc) {
- Typeface tempFont;
- if (desc instanceof LazyFont) {
- tempFont = ((LazyFont)desc).getRealFont();
- } else {
- tempFont = (Typeface)desc;
- }
- if (!(tempFont instanceof CustomFont)) {
- throw new IllegalArgumentException(
- "FontDescriptor must be instance of CustomFont, but is a "
- + desc.getClass().getName());
- }
- return (CustomFont)tempFont;
- }
-
-
- /* ========================= streams =================================== */
-
- /**
- * Make a stream object
- *
- * @param type the type of stream to be created
- * @param add if true then the stream will be added immediately
- * @return the stream object created
- */
- public PDFStream makeStream(String type, boolean add) {
-
- // create a PDFStream with the next object number
- // and add it to the list of objects
- PDFStream obj = new PDFStream();
- obj.setDocument(getDocument());
- obj.getFilterList().addDefaultFilters(
- getDocument().getFilterMap(),
- type);
-
- if (add) {
- getDocument().registerObject(obj);
- }
- //getDocument().applyEncryption(obj);
- return obj;
- }
-
- /**
- * Create a PDFICCStream
- * @see PDFImageXObject
- * @see org.apache.fop.pdf.PDFDeviceColorSpace
- * @return the new PDF ICC stream object
- */
- public PDFICCStream makePDFICCStream() {
- PDFICCStream iccStream = new PDFICCStream();
-
- getDocument().registerObject(iccStream);
- //getDocument().applyEncryption(iccStream);
- return iccStream;
- }
-
- /* ========================= misc. objects ============================= */
-
- /**
- * Makes a new ICCBased color space and registers it in the resource context.
- * @param res the PDF resource context to add the shading, may be null
- * @param explicitName the explicit name for the color space, may be null
- * @param iccStream the ICC stream to associate with this color space
- * @return the newly instantiated color space
- */
- public PDFICCBasedColorSpace makeICCBasedColorSpace(PDFResourceContext res,
- String explicitName, PDFICCStream iccStream) {
- PDFICCBasedColorSpace cs = new PDFICCBasedColorSpace(explicitName, iccStream);
-
- getDocument().registerObject(cs);
-
- if (res != null) {
- res.getPDFResources().addColorSpace(cs);
- } else {
- getDocument().getResources().addColorSpace(cs);
- }
-
- return cs;
- }
-
- /**
- * Create a new Separation color space.
- * @param res the resource context (may be null)
- * @param ncs the named color space to map to a separation color space
- * @return the newly created Separation color space
- */
- public PDFSeparationColorSpace makeSeparationColorSpace(PDFResourceContext res,
- NamedColorSpace ncs) {
- String colorName = ncs.getColorName();
- final Double zero = 0d;
- final Double one = 1d;
- List domain = Arrays.asList(new Double[] {zero, one});
- List range = Arrays.asList(new Double[] {zero, one, zero, one, zero, one});
- float[] cZero = new float[] {1f, 1f, 1f};
- float[] cOne = ncs.getRGBColor().getColorComponents(null);
- PDFFunction tintFunction = makeFunction(domain, range, cZero, cOne, 1.0d);
- PDFSeparationColorSpace cs = new PDFSeparationColorSpace(colorName, tintFunction);
- getDocument().registerObject(cs);
- if (res != null) {
- res.getPDFResources().addColorSpace(cs);
- } else {
- getDocument().getResources().addColorSpace(cs);
- }
-
- return cs;
- }
-
- /**
- * Make an Array object (ex. Widths array for a font).
- *
- * @param values the int array values
- * @return the PDF Array with the int values
- */
- public PDFArray makeArray(int[] values) {
- PDFArray array = new PDFArray(null, values);
- getDocument().registerObject(array);
- return array;
- }
-
- /**
- * make an ExtGState for extra graphics options
- * This tries to find a GState that will setup the correct values
- * for the current context. If there is no suitable GState it will
- * create a new one.
- *
- * @param settings the settings required by the caller
- * @param current the current GState of the current PDF context
- * @return a PDF GState, either an existing GState or a new one
- */
- public PDFGState makeGState(Map settings, PDFGState current) {
-
- // try to locate a gstate that has all the settings
- // or will inherit from the current gstate
- // compare "DEFAULT + settings" with "current + each gstate"
-
- PDFGState wanted = new PDFGState();
- wanted.addValues(PDFGState.DEFAULT);
- wanted.addValues(settings);
-
-
- PDFGState existing = getDocument().findGState(wanted, current);
- if (existing != null) {
- return existing;
- }
-
- PDFGState gstate = new PDFGState();
- gstate.addValues(settings);
- getDocument().registerObject(gstate);
- return gstate;
- }
-
- /**
- * Make an annotation list object
- *
- * @return the annotation list object created
- */
- public PDFAnnotList makeAnnotList() {
- PDFAnnotList obj = new PDFAnnotList();
- getDocument().assignObjectNumber(obj);
- return obj;
- }
-
- public PDFLayer makeLayer(String id) {
- PDFLayer layer = new PDFLayer(id);
- getDocument().registerObject(layer);
- return layer;
- }
-
- public PDFSetOCGStateAction makeSetOCGStateAction(String id) {
- PDFSetOCGStateAction action = new PDFSetOCGStateAction(id);
- getDocument().registerObject(action);
- return action;
- }
-
- public PDFTransitionAction makeTransitionAction(String id) {
- PDFTransitionAction action = new PDFTransitionAction(id);
- getDocument().registerObject(action);
- return action;
- }
-
- public PDFNavigator makeNavigator(String id) {
- PDFNavigator navigator = new PDFNavigator(id);
- getDocument().registerObject(navigator);
- return navigator;
- }
-
- public void makeDPart(PDFPage page, String pageMasterName) {
- PDFDPartRoot root = getDocument().getRoot().getDPartRoot();
- PDFDPart dPart;
- if (dparts.containsKey(pageMasterName)) {
- dPart = dparts.get(pageMasterName);
- } else {
- dPart = new PDFDPart(root.dpart);
- root.add(dPart);
- getDocument().registerTrailerObject(dPart);
- dparts.put(pageMasterName, dPart);
- }
- dPart.addPage(page);
- page.put("DPart", dPart);
- }
-
- public PDFDPartRoot makeDPartRoot() {
- PDFDPartRoot pdfdPartRoot = new PDFDPartRoot(getDocument());
- getDocument().registerTrailerObject(pdfdPartRoot);
- return pdfdPartRoot;
- }
- }
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