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added an extension for mathml 

uses jeuclid to convert mathml into svg


git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@194741 13f79535-47bb-0310-9956-ffa450edef68
tags/fop-0_20_4-doc
Keiron Liddle 22 years ago
parent
95267f97c7
commit
c20413f5c2
11 changed files with 646 additions and 0 deletions
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  1. 1
    0
      contrib/mathml/.cvsignore
  2. 10
    0
      contrib/mathml/README
  3. 26
    0
      contrib/mathml/build.sh
  4. 134
    0
      contrib/mathml/build.xml
  5. 63
    0
      contrib/mathml/docs/example.mml
  6. 172
    0
      contrib/mathml/docs/mathml.fo
  7. 1
    0
      contrib/mathml/lib/readme.txt
  8. 2
    0
      contrib/mathml/resources/META-INF/services/org.apache.fop.fo.ElementMapping
  9. 124
    0
      contrib/mathml/src/org/apache/fop/mathml/MathMLElement.java
  10. 87
    0
      contrib/mathml/src/org/apache/fop/mathml/MathMLElementMapping.java
  11. 26
    0
      contrib/mathml/src/org/apache/fop/mathml/MathMLObj.java

+ 1
- 0
contrib/mathml/.cvsignore View File

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build

+ 10
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contrib/mathml/README View File

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FOP MathML Readme

This directory contains an extension for MathML that can be used with FOP.

This extension works with jeuclid which is available from:
http://sourceforge.net/projects/jeuclid/

This simply uses jeuclid to convert the mathml xml into svg.
The svg is then handled as normal.


+ 26
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contrib/mathml/build.sh View File

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#!/bin/sh
echo
echo "MathML Build System"
echo "----------------"
echo

if [ "$JAVA_HOME" = "" ] ; then
echo "ERROR: JAVA_HOME not found in your environment."
echo
echo "Please, set the JAVA_HOME variable in your environment to match the"
echo "location of the Java Virtual Machine you want to use."
exit 1
fi
LIBDIR=../../lib
LOCALCLASSPATH=$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/classes.zip:$LIBDIR/ant.jar:$LIBDIR/batik.jar:$LIBDIR/buildtools.jar:$LIBDIR/xerces-1.4.3.jar:$LIBDIR/xalan-2.2D11.jar:../../build/fop.jar:$LIBDIR/avalon-framework-cvs-20020315.jar:lib/jeuclid.jar
ANT_HOME=$LIBDIR

echo
CP=$LOCALCLASSPATH
echo Building with classpath $CP


echo Starting Ant...
echo

$JAVA_HOME/bin/java -Dant.home=$ANT_HOME -classpath "$CP" org.apache.tools.ant.Main $*

+ 134
- 0
contrib/mathml/build.xml View File

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<?xml version="1.0"?>

<!-- ===========================================================================

============================================================================ -->

<project default="package" basedir=".">

<!-- =================================================================== -->
<!-- Initialization target -->
<!-- =================================================================== -->
<target name="init">
<tstamp/>
<property name="Name" value="MathML-FOP"/>
<property name="name" value="mathml-fop"/>
<property name="version" value="0.1-CVS"/>
<filter token="version" value="${version}"/>
<property name="year" value="2002"/>

<echo message="------------------- ${Name} ${version} [${year}] ----------------"/>

<property name="build.compiler" value="classic"/>
<property name="debug" value="off"/>
<property name="optimize" value="on"/>
<property name="deprecation" value="off"/>

<property name="src.dir" value="./src"/>
<property name="lib.dir" value="./lib"/>
<property name="packages" value="org.apache.fop.*"/>

<property name="build.dir" value="./build"/>
<property name="build.src" value="./build/src"/>
<property name="build.dest" value="./build/classes"/>

<property name="resource.dir" value="resources"/>
<property name="mathml.dir" value="org/apache/fop/mathml"/>

<property name="xslt" value="org.apache.xalan.xslt.Process"/>

</target>

<!-- =================================================================== -->
<!-- Help on usage -->
<!-- =================================================================== -->
<target name="usage">
<echo message=""/>
<echo message=""/>
<echo message="${Name} Build file"/>
<echo message="-------------------------------------------------------------"/>
<echo message=""/>
<echo message=" available targets are:"/>
<echo message=""/>
<echo message=" package --> generates the ${name}.jar file (default)"/>
<echo message=" compile --> compiles the source code"/>
<echo message=" clean --> cleans up the directory"/>
<echo message=" site --> generates the ${Name} web site (not yet implemented)"/>
<echo message=""/>
<echo message=" See the comments inside the build.xml file for more details."/>
<echo message="-------------------------------------------------------------"/>
<echo message=""/>
<echo message=""/>
</target>

<!-- =================================================================== -->
<!-- Prepares the build directory -->
<!-- =================================================================== -->
<target name="prepare" depends="init">
<!-- create directories -->
<echo message="Preparing the build directories"/>
<mkdir dir="${build.dir}"/>
<mkdir dir="${build.src}"/>
<mkdir dir="${build.src}/${mathml.dir}"/>
</target>

<!-- =================================================================== -->
<!-- Prepares the source code -->
<!-- =================================================================== -->
<target name="prepare-src" depends="prepare">
<!-- copy src files -->
<copy todir="${build.src}">
<fileset dir="${src.dir}"
excludes="**/Makefile*, **/package.html"/>
</copy>
<copy todir="${build.dest}/">
<fileset dir="${resource.dir}"/>
</copy>
</target>

<!-- =================================================================== -->
<!-- Compiles the source directory -->
<!-- =================================================================== -->
<target name="compile" depends="prepare-src">
<echo message="Compiling the sources "/>
<!-- create directories -->
<mkdir dir="${build.dest}"/>

<javac srcdir="${build.src}"
destdir="${build.dest}"
debug="${debug}"
deprecation="${deprecation}"
optimize="${optimize}"
excludes=""/>
</target>

<!-- =================================================================== -->
<!-- Creates the class package -->
<!-- =================================================================== -->
<target name="package" depends="compile">
<echo message="Creating the jar file ${build.dir}/${name}.jar"/>
<tstamp>
<format property="ts" pattern="yyyyMMdd-HHmmss-z"/>
</tstamp>

<jar jarfile="${build.dir}/${name}.jar"
basedir="${build.dest}"
includes="**">
<manifest>
<attribute name="Implementation-Title" value="${Name}"/>
<attribute name="Implementation-Version" value="${version}"/>
<attribute name="Implementation-Vendor" value="Apache Software Foundation (http://xml.apache.org/fop/)"/>
<attribute name="Build-Id" value="${ts} (${user.name} [${os.name} ${os.version} ${os.arch}])"/>
</manifest>
</jar>
</target>

<!-- =================================================================== -->
<!-- Clean targets -->
<!-- =================================================================== -->
<target name="clean" depends="init">
<delete dir="${build.dir}"/>
</target>

</project>


+ 63
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contrib/mathml/docs/example.mml View File

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<?xml version="1.0" encoding="ISO-8859-1"?>
<math xmlns="http://www.w3.org/1998/Math/MathML" mode="display">
<mrow>
<mo stretchy="false">{</mo>
<munder>
<mrow>
<mover>
<mrow>
<mpadded width="0"/>
<!--mpadded width="0">(</mpadded-->
<!-- \mathstrut -ugly hack a la TeX -->
<mi>a</mi>
<mo>,</mo>
<mo>...</mo>
<mo>,</mo>
<mi>a</mi>
</mrow>
<mover>
<mo>&#x0FE37;</mo>
<mrow>
<mi>k</mi>
<mtext>&#x000A0;</mtext>
<mi>a</mi>
<mtext>'s</mtext>
</mrow>
</mover>
</mover>
<mo>,</mo>
<mover>
<mrow>
<mpadded/>
<!--mpadded width="0">(</mpadded-->
<!-- \mathstrut -ugly hack a la TeX -->
<mi>b</mi>
<mo>,</mo>
<mo>...</mo>
<mo>,</mo>
<mi>b</mi>
</mrow>
<mover>
<mo>&#x0FE37;</mo>
<mrow>
<mi>&#x02113;</mi>
<mtext>&#x000A0;</mtext>
<mi>b</mi>
<mtext>'s</mtext>
</mrow>
</mover>
</mover>
</mrow>
<munder>
<mo>&#x0FE38;</mo>
<mrow>
<mi>k</mi>
<mo>+</mo>
<mi>&#x02113;</mi>
<mtext>&#x000A0;elements</mtext>
</mrow>
</munder>
</munder>
<mo stretchy="false">}</mo>
</mrow>
</math>

+ 172
- 0
contrib/mathml/docs/mathml.fo View File

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<?xml version="1.0" encoding="UTF-8"?>
<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
<fo:layout-master-set>
<fo:simple-page-master
margin-right="1.5cm"
margin-left="1.5cm"
margin-bottom="2cm"
margin-top="1cm"
page-width="21cm"
page-height="29.7cm"
master-name="first">
<fo:region-before extent="1cm"/>
<fo:region-body margin-top="1cm"/>
<fo:region-after extent="1.5cm"/>
</fo:simple-page-master>
</fo:layout-master-set>

<fo:page-sequence master-reference="first">
<fo:static-content flow-name="xsl-region-before">
<fo:block line-height="14pt" font-size="10pt"
text-align="end">Plan Extension</fo:block>
</fo:static-content>
<fo:static-content flow-name="xsl-region-after">
<fo:block line-height="14pt" font-size="10pt"
text-align="end">Page <fo:page-number/></fo:block>
</fo:static-content>

<fo:flow flow-name="xsl-region-body">

<fo:block space-before.optimum="3pt" space-after.optimum="15pt">
The MathML Extension
</fo:block>

<fo:block space-before.optimum="3pt" space-after.optimum="15pt">
The mathml extension is an addition to FOP that can be used to draw mathml
expressions.
</fo:block>

<fo:block space-before.optimum="3pt" space-after.optimum="15pt">
Examples
</fo:block>

<fo:block space-before.optimum="3pt" space-after.optimum="15pt">
<fo:block space-after.optimum="5pt">
<fo:instream-foreign-object>
<math xmlns="http://www.w3.org/1998/Math/MathML" mode="inline">
<mrow>
<mi>I</mi>
<mrow>
<mo>(</mo>
<mi>x</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<mi>F</mi>
<mo stretchy="false">(</mo>
<mi>x</mi>
<mo stretchy="false">)</mo>
<mo>+</mo>
<mi>C</mi>
</mrow>
</math>
</fo:instream-foreign-object>
</fo:block>
</fo:block>

<fo:block space-before.optimum="3pt" space-after.optimum="15pt">
<fo:block space-after.optimum="5pt">
<fo:instream-foreign-object>
<math xmlns="http://www.w3.org/1998/Math/MathML" mode="inline">
<mrow>
<mo>(</mo>
<mtable>
<mtr>
<mtd columnalign="center">
<mrow>
<mo>(</mo>
<mtable>
<mtr>
<mtd columnalign="center">
<mi>a</mi>
</mtd>
<mtd columnalign="center">
<mi>b</mi>
</mtd>
</mtr>
<mtr>
<mtd columnalign="center">
<mi>c</mi>
</mtd>
<mtd columnalign="center">
<mi>d</mi>
</mtd>
</mtr>
</mtable>
<mo>)</mo>
</mrow>
</mtd>
<mtd columnalign="center">
<mrow>
<mo>(</mo>
<mtable>
<mtr>
<mtd columnalign="center">
<mi>e</mi>
</mtd>
<mtd columnalign="center">
<mi>f</mi>
</mtd>
</mtr>
<mtr>
<mtd columnalign="center">
<mi>g</mi>
</mtd>
<mtd columnalign="center">
<mi>h</mi>
</mtd>
</mtr>
</mtable>
<mo>)</mo>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd columnalign="center">
<mn>0</mn>
</mtd>
<mtd columnalign="center">
<mrow>
<mo>(</mo>
<mtable>
<mtr>
<mtd columnalign="center">
<mi>i</mi>
</mtd>
<mtd columnalign="center">
<mi>j</mi>
</mtd>
</mtr>
<mtr>
<mtd columnalign="center">
<mi>k</mi>
</mtd>
<mtd columnalign="center">
<mi>l</mi>
</mtd>
</mtr>
</mtable>
<mo>)</mo>
</mrow>
</mtd>
</mtr>
</mtable>
<mo>)</mo>
</mrow>
</math>

</fo:instream-foreign-object>
</fo:block>
</fo:block>

<fo:block>
An external mathml document.
</fo:block>

<fo:block>
<fo:external-graphic src="example.mml"/>
</fo:block>
</fo:flow>
</fo:page-sequence>
</fo:root>


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contrib/mathml/lib/readme.txt View File

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Put jeuclid.jar in this directory!

+ 2
- 0
contrib/mathml/resources/META-INF/services/org.apache.fop.fo.ElementMapping View File

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org.apache.fop.mathml.MathMLElementMapping


+ 124
- 0
contrib/mathml/src/org/apache/fop/mathml/MathMLElement.java View File

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/* $Id$
* Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/

package org.apache.fop.mathml;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.geom.Point2D;

import org.apache.fop.fo.FONode;
import org.apache.fop.apps.FOPException;

import org.w3c.dom.Document;
import org.w3c.dom.*;
import org.xml.sax.Attributes;

import org.apache.batik.svggen.SVGGraphics2D;
import org.apache.batik.dom.svg.SVGDOMImplementation;

import net.sourceforge.jeuclid.MathBase;
import net.sourceforge.jeuclid.DOMMathBuilder;

public class MathMLElement extends MathMLObj {
Document svgDoc = null;
float width;
float height;
boolean converted = false;

public MathMLElement(FONode parent) {
super(parent);
}

public void handleAttrs(Attributes attlist) throws FOPException {
super.handleAttrs(attlist);
createBasicDocument();
}

public void convertToSVG() {
try {
if (!converted) {
converted = true;
String fontname = "Helvetica";
int fontstyle = 0;
int inlinefontstyle = 0;
int displayfontsize = 12;
int inlinefontsize = 12;

MathBase base = new MathBase(
(new DOMMathBuilder(doc)).getMathRootElement(),
fontname, fontstyle, inlinefontsize,
displayfontsize);

base.setDebug(false);

svgDoc = createSVG(base);

width = base.getWidth();
height = base.getHeight();

doc = svgDoc;
}
} catch (Throwable t) {
log.error("Could not convert MathML to SVG", t);
width = 0;
height = 0;
}

}

public static Document createSVG(MathBase base) {

DOMImplementation impl =
SVGDOMImplementation.getDOMImplementation();
String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
Document svgdocument = impl.createDocument(svgNS, "svg", null);

SVGGraphics2D g = new SVGGraphics2D(svgdocument);

g.setSVGCanvasSize(
new Dimension(base.getWidth(), base.getHeight()));

//g.setColor(Color.white);
//g.fillRect(0, 0, base.getWidth(), base.getHeight());
g.setColor(Color.black);

base.paint(g);

//if (antialiasing)
//element.setAttribute("text-rendering", "optimizeLegibility");
//else
//element.setAttribute("text-rendering", "geometricPrecision");

// this should be done in a better way
Element root = g.getRoot();
svgdocument = impl.createDocument(svgNS, "svg", null);
Node node = svgdocument.importNode(root, true);
((org.apache.batik.dom.svg.SVGOMDocument) svgdocument).
getRootElement().appendChild(node);

return svgdocument;

}

public Document getDocument() {
convertToSVG();
return doc;
}

public String getDocumentNamespace() {
if (svgDoc == null) {
return MathMLElementMapping.URI;
}
return "http://www.w3.org/2000/svg";
}

public Point2D getDimension(Point2D view) {
convertToSVG();
return new Point2D.Float(width, height);
}
}


+ 87
- 0
contrib/mathml/src/org/apache/fop/mathml/MathMLElementMapping.java View File

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/* $Id$
* Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/

package org.apache.fop.mathml;

import org.apache.fop.fo.FOTreeBuilder;
import org.apache.fop.fo.FONode;
import org.apache.fop.fo.ElementMapping;
import org.apache.fop.image.analyser.XMLReader;
import org.apache.fop.image.FopImage;
import org.w3c.dom.Document;

import java.util.HashMap;

import net.sourceforge.jeuclid.MathBase;
import net.sourceforge.jeuclid.DOMMathBuilder;

public class MathMLElementMapping implements ElementMapping {

public static final String URI = "http://www.w3.org/1998/Math/MathML";

private static HashMap foObjs = null;

private static synchronized void setupMathML() {
if (foObjs == null) {
foObjs = new HashMap();
foObjs.put("math", new ME());
foObjs.put(DEFAULT, new MathMLMaker());

XMLReader.setConverter(URI, new MathMLConverter());
}
}

public void addToBuilder(FOTreeBuilder builder) {
setupMathML();
builder.addMapping(URI, foObjs);
}

static class MathMLMaker extends ElementMapping.Maker {
public FONode make(FONode parent) {
return new MathMLObj(parent);
}
}

static class ME extends ElementMapping.Maker {
public FONode make(FONode parent) {
return new MathMLElement(parent);
}
}

static class MathMLConverter implements XMLReader.Converter {
public FopImage.ImageInfo convert(Document doc) {
try {
FopImage.ImageInfo info = new FopImage.ImageInfo();
String fontname = "Helvetica";
int fontstyle = 0;
int inlinefontstyle = 0;
int inlinefontsize = 12;
int displayfontsize = 12;

MathBase base = new MathBase(
(new DOMMathBuilder(doc)).getMathRootElement(),
fontname, fontstyle, inlinefontsize,
displayfontsize);

base.setDebug(false);

info.data = MathMLElement.createSVG(base);

info.width = base.getWidth();
info.height = base.getHeight();

info.mimeType = "image/svg+xml";
info.str = "http://www.w3.org/2000/svg";

return info;
} catch (Throwable t) {
}
return null;

}
}

}

+ 26
- 0
contrib/mathml/src/org/apache/fop/mathml/MathMLObj.java View File

@@ -0,0 +1,26 @@
/* $Id$
* Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/

package org.apache.fop.mathml;

// FOP
import org.apache.fop.fo.FONode;
import org.apache.fop.fo.XMLObj;

/**
* Catch all MathML object as default element.
*/
public class MathMLObj extends XMLObj {

public MathMLObj(FONode parent) {
super(parent);
}

public String getNameSpace() {
return MathMLElementMapping.URI;
}
}


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