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Posted to batik-dev@xmlgraphics.apache.org by vh...@apache.org on 2001/11/28 09:59:12 UTC
cvs commit: xml-batik/contrib/rasterizertask/sources/org/apache/tools/ant/taskdefs/optional RasterizerTask.java RasterizerTaskSVGConverterController.java
vhardy 01/11/28 00:59:12
Added: contrib/rasterizertask README build.bat build.xml
contrib/rasterizertask/sources/org/apache/tools/ant/taskdefs/optional
RasterizerTask.java
RasterizerTaskSVGConverterController.java
Log:
First commit of Henri Ruini's contribution: an Ant task for the rasterizer.
Revision Changes Path
1.1 xml-batik/contrib/rasterizertask/README
Index: README
===================================================================
#
# Author : Henri Ruini
# Version : $Id: README,v 1.1 2001/11/28 08:59:12 vhardy Exp $
#
Content of this directory
=========================
This directory contains rasterizer task for Ant. Th task can be used to
convert SVG files to raster format. This has been contributed by
Henri Ruini (ruini@iki.fi).
The <sources> directory contains source code for the task. To compile the code
you need to compile Batik first and then compile the task by typing
.\build.bat compile
in this directory. Type
.\build.bat help
to display other available targets. These commands work only in Windows.
1.1 xml-batik/contrib/rasterizertask/build.bat
Index: build.bat
===================================================================
@ECHO OFF
REM --------------------------------------------------------------------------
REM Copyright (C) The Apache Software Foundation. All rights reserved.
REM -------------------------------------------------------------------------
REM This software is published under the terms of the Apache Software License
REM version 1.1, a copy of which has been included with this distribution in
REM the LICENSE file.
REM --------------------------------------------------------------------------
REM --------------------------------------------------------------------------
REM build.bat - MS-DOS build script for rasterizer task
REM
REM $Id: build.bat,v 1.1 2001/11/28 08:59:12 vhardy Exp $
REM --------------------------------------------------------------------------
REM ----- Verify and set required environment variables ----------------------
IF NOT "%JAVA_HOME%" == "" GOTO gotJavaHome
ECHO You must set JAVA_HOME to point at your JDK installation.
GOTO cleanup
:gotJavaHome
IF NOT "%ANT_HOME%" == "" GOTO gotAntHome
SET ANT_HOME=..\..
:gotAntHome
SET BATIK_HOME=.\..\..
REM ----- Set up classpath ---------------------------------------------------
SET CP=%JAVA_HOME%\lib\tools.jar;%ANT_HOME%\lib\build\ant_1_4_1.jar;%BATIK_HOME%\lib\build\crimson-ant.jar;%BATIK_HOME%\lib\build\jaxp.jar
SET CP=%CP%;%BATIK_HOME%\classes
REM ----- Execute ------------------------------------------------------------
%JAVA_HOME%\bin\java.exe %ANT_OPTS% -classpath %CP% org.apache.tools.ant.Main -Dant.home=%ANT_HOME% %1 -Dargs="%2 %3 %4 %5 %6 %7 %8 %9"
REM ----- Cleanup the environment --------------------------------------------
:cleanup
SET BATIK_HOME=
SET CP=
1.1 xml-batik/contrib/rasterizertask/build.xml
Index: build.xml
===================================================================
<?xml version="1.0" encoding="ISO-8859-1"?>
<!-- ========================================================================= -->
<!-- Copyright (C) The Apache Software Foundation. All rights reserved. -->
<!-- -->
<!-- This software is published under the terms of the Apache Software License -->
<!-- version 1.1, a copy of which has been included with this distribution in -->
<!-- the LICENSE file. -->
<!-- ========================================================================= -->
<project name="RasterizerTask" default="help" basedir=".">
<!-- ================================================================= -->
<!--
This is a build project for RasterizerTask task.
Use compile target to compile source code and help target to
display all available targets.
Author: Henri Ruini
-->
<!-- ================================================================= -->
<!-- == Global properties ============================================ -->
<property name="root" value="${basedir}" />
<!-- root: Root directory of all the other directories. -->
<property name="lib" value="${root}/../../lib" />
<!-- lib: Directory where the library files (jars etc.) are located. -->
<property name="src" value="${root}/sources" />
<!-- src: Directory for source files. -->
<property name="build" value="${root}/classes" />
<!-- build: Directory for compiles class files. -->
<property name="javadoc" value="${root}/javadoc" />
<!-- javadocs: Directory for javadocs. -->
<!-- == Targets ====================================================== -->
<target name="help"
description="Displays usage information.">
<echo>SVG Rasterizer Task build file.</echo>
<echo>Available targets are:</echo>
<echo> compile --> Compiles the source code.</echo>
<echo> javadoc --> Generates Javadoc documentation.</echo>
<echo> jar --> Builds the JAR distribution.</echo>
<echo> clean --> Deletes the generated directories.</echo>
</target>
<target name="prepare">
<tstamp/>
</target>
<target name="compile" depends="prepare"
description="Compiles source files.">
<!-- Clean and (re)create the build directory. -->
<delete dir="${build}" />
<mkdir dir="${build}" />
<!-- Compile code. -->
<javac srcdir="${src}" destdir="${build}" />
</target>
<target name="javadoc" depends="prepare"
description="Generates Javadoc documentation.">
<!-- Clean and (re)create the javadocs directory. -->
<delete dir="${javadoc}" />
<mkdir dir="${javadoc}" />
<!-- Create javadocs. -->
<javadoc destdir="${javadoc}"
packagenames="org.apache.tools.ant.*"
version="false"
author="false"
windowtitle="Rasterizer Task Javadoc"
doctitle="Rasterizer Task API Specification"
bottom="Copyright © 2001 Apache Software Foundation. All Rights Reserved.">
<sourcepath>
<pathelement path="${src}" />
<pathelement path="${root}/../../sources" />
</sourcepath>
<group title="SVG Rasterizer Task" packages="org.apache.tools.ant.taskdefs.optional.RasterizerTask" />
</javadoc>
</target>
<target name="jar" depends="prepare, compile"
description="Creates a JAR package.">
<jar jarfile="${root}/RasterizerTask.jar"
basedir="${build}"
excludes="**/CVS"
includes="**/*.class">
</jar>
</target>
<target name="clean"
description="Deletes directories created by this script.">
<delete dir="${javadoc}" />
<delete dir="${build}" />
</target>
</project>
1.1 xml-batik/contrib/rasterizertask/sources/org/apache/tools/ant/taskdefs/optional/RasterizerTask.java
Index: RasterizerTask.java
===================================================================
/*****************************************************************************
* Copyright (C) The Apache Software Foundation. All rights reserved. *
* ------------------------------------------------------------------------- *
* This software is published under the terms of the Apache Software License *
* version 1.1, a copy of which has been included with this distribution in *
* the LICENSE file. *
*****************************************************************************/
package org.apache.tools.ant.taskdefs.optional;
// -- Ant classes ------------------------------------------------------------
import org.apache.tools.ant.Project;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.DirectoryScanner;
import org.apache.tools.ant.taskdefs.MatchingTask;
import org.apache.tools.ant.types.EnumeratedAttribute;
import org.apache.tools.ant.types.FileSet;
// -- Batik classes ----------------------------------------------------------
import org.apache.batik.apps.rasterizer.SVGConverter;
import org.apache.batik.apps.rasterizer.DestinationType;
import org.apache.batik.apps.rasterizer.SVGConverterException;
import org.apache.batik.transcoder.image.JPEGTranscoder;
// -- Java SDK classes -------------------------------------------------------
import java.awt.geom.Rectangle2D;
import java.awt.Color;
import java.io.File;
import java.util.StringTokenizer;
import java.util.Vector;
import java.util.Iterator;
import java.util.ArrayList;
import java.util.List;
/**
* This Ant task can be used to convert SVG images to raster images.
*
* <p>Possible result raster image formats are PNG, JPEG, TIFF, and PDF.
* Batik {@link SVGConverter} is used to execute the conversion. You need
* <em>Batik</em> to produce the first three raster image types and
* <em>FOP</em> to produce PDF.</p>
*
* @see SVGConverter SVGConverter
* @see org.apache.batik.apps.rasterizer.Main Main
*
* @author <a href="mailto:ruini@iki.fi">Henri Ruini</a>
* @version $Id: RasterizerTask.java,v 1.1 2001/11/28 08:59:12 vhardy Exp $
*/
public class RasterizerTask extends MatchingTask {
// -- Class constants ----------------------------------------------------
/**
* Default quality value for JPEGs. This value is used when
* the user doesn't set the quality.
*/
protected static final float DEFAULT_QUALITY = 0.99f;
// -- Class variables ----------------------------------------------------
/** Result image type. The default is PNG. */
protected DestinationType resultType = DestinationType.PNG;
/** Output image height. */
protected float height = Float.NaN;
/** Output image width. */
protected float width = Float.NaN;
/** Output image quality. */
protected float quality = Float.NaN;
/** Output Area of Interest (AOI) area. */
protected String area = null;
/** Output background color. */
protected String background = null;
/** Media type of CSS file used to produce output images. */
protected String mediaType = null;
/** Output pixel size - dots per inch. */
protected float dpi = Float.NaN;
/** Output image language. */
protected String language = null;
/** Source image path. */
protected File srcFile = null;
/** Destination image path. */
protected File destFile = null;
/** Source directory of images. */
protected File srcDir = null;
/** Destination directory for output images. */
protected File destDir = null;
/** Contents of <code>fileset</code> elements. */
protected Vector filesets = new Vector();
/** Converter object used to convert SVG images to raster images. */
protected SVGConverter converter;
// -- Constructors -------------------------------------------------------
/**
* Initializes a new rasterizer task.
*/
public RasterizerTask() {
converter = new SVGConverter(new RasterizerTaskSVGConverterController(this));
}
// -- Methods required by Ant --------------------------------------------
/**
* Gets <code>result</code> attribute value.
*
* <p>See the documentation for valid values.</p>
*
* @param type Attribute value.
*/
public void setResult(ValidImageTypes type) {
this.resultType = getResultType(type.getValue());
}
/**
* Gets <code>height</code> attribute value.
*
* <p>The attribute is optional.</p>
*
* @param height Attribute value.
*/
public void setHeight(float height) {
this.height = height;
}
/**
* Gets <code>width</code> attribute value.
*
* <p>The attribute is optional.</p>
*
* @param width Attribute value.
*/
public void setWidth(float width) {
this.width = width;
}
/**
* Gets <code>quality</code> attribute value.
*
* <p>The value have to be a float between 0 and 1 excluded.
* The attribute is optional.</p>
*
* @param quality Attribute value.
*/
public void setQuality(float quality) {
this.quality = quality;
}
/**
* Gets <code>area</code> attribute value.
*
* <p>The value have to be four integers separated with whitespaces or
* commas.
* The attribute is optional.</p>
*
* @param area Attribute value.
*/
public void setArea(String area) {
this.area = area;
}
/**
* Gets <code>bg</code> attribute value.
*
* <p>The value have to be three or four integers separated with
* whitespaces or commas.
* The attribute is optional.</p>
*
* @param bg Attribute value.
*/
public void setBg(String bg) {
this.background = bg;
}
/**
* Gets <code>media</code> attribute value.
*
* <p>The value have to a media type defined in CSS2 specifications.
* Only visual media group is supported.</p>
*
* @param media Attribute value.
*/
public void setMedia(ValidMediaTypes media) {
this.mediaType = media.getValue();
}
/**
* Gets <code>dpi</code> attribute value.
*
* <p>The value have to be a positive float.
* The attribute is optional.</p>
*
* @param dpi Attribute value.
*/
public void setDpi(float dpi) {
this.dpi = dpi;
}
/**
* Gets <code>lang</code> attribute value.
*
* <p>See SVG specification for valid values.
* The attribute is optional.</p>
*
* @param lang Attribute value.
*/
public void setLang(String language) {
this.language = language;
}
/**
* Gets <code>src</code> attribute value.
*
* <p>One of the following have to have a value: this attribute,
* <code>srcdir</code> attribute or <code>fileset</code> element.</p>
*
* @param file Attribute value.
*/
public void setSrc(File file) {
this.srcFile = file;
}
/**
* Gets <code>dest</code> attribute value.
*
* <p>The attribute have to have a value when
* <code>src</code> attribute has a value.</p>
*
* @param file Attribute value.
*/
public void setDest(File file) {
this.destFile = file;
}
/**
* Gets <code>srcdir</code> attribute value.
*
* <p>If <code>srcfile</code> attribute doesn't have a value then
* either this attribute have to have a value or the element have
* to contain <code>fileset</code> elements.</p>
*
* @param dir Attribute value.
*/
public void setSrcdir(File dir) {
this.srcDir = dir;
}
/**
* Gets <code>destdir</code> attribute value.
*
* <p>This attribute have to have a value if either
* <code>srcdir</code> attribute or <code>fileset</code> elements
* exists.</p>
*
* @param dir Attribute value.
*/
public void setDestdir(File dir) {
this.destDir = dir;
}
/**
* Reads <code>fileset</code> elements.
*
* <p><code>fileset</code> elements can be used when there are many files
* to be rasterized.</p>
*
* @param set <code>fileset</code> elements
*/
public void addFileset(FileSet set) {
filesets.addElement(set);
}
/**
* Validates and sets input values and files, then starts the conversion
* process.
*
* <p>See Ant documentation to find out more about the meaning of
* <code>execute</code> in Ant task.</p>
*
* @throws BuildException Parameters are not set correctly or the conversion fails.
*/
public void execute() throws BuildException {
String[] sources; // Array of input files.
// Check file and directory values.
if(this.srcFile != null) {
if(this.destFile == null) {
throw new BuildException("dest attribute is not set.");
}
} else {
if((this.srcDir == null) && (filesets.size() == 0)) {
throw new BuildException("No input files! Either srcdir or fileset have to be set.");
}
if(this.destDir == null) {
throw new BuildException("destdir attribute is not set!");
}
}
// Throws BuildException.
setRasterizingParameters();
// Get and set source(s).
sources = getSourceFiles();
converter.setSources(sources);
// Set destination.
if(this.srcFile != null) {
converter.setDst(this.destFile);
} else {
converter.setDst(this.destDir);
}
// Input filenames are stored in the converter and
// everything is ready for the conversion.
log("Rasterizing " + sources.length +
(sources.length == 1 ? " image " : " images ") +
"from SVG to " + this.resultType.toString() + ".");
try {
converter.execute();
} catch(SVGConverterException sce) {
throw new BuildException(sce.getMessage());
}
}
// -- Internal methods ---------------------------------------------------
/**
* Checks and sets parameter values to the converter.
*
* <p>Some invalid values are just swallowed and default values are
* used instead. This is done when the invalid value cannot
* be correctly differentiated from the default value and the default
* value doesn't cause any harm. <code>BuildException</code> is thrown
* if the invalid value is clearly recognized.</p>
*
* @throws BuildException Invalid parameter value.
*/
protected void setRasterizingParameters()
throws BuildException {
if(this.resultType != null) {
converter.setDestinationType(this.resultType);
} else {
throw new BuildException("Unknown value in result parameter.");
}
if(!Float.isNaN(this.width)) {
if(this.width < 0) {
throw new BuildException("Value in width parameter must positive.");
}
converter.setWidth(this.width);
}
if(!Float.isNaN(this.height)) {
if(this.height < 0) {
throw new BuildException("Value in height parameter must positive.");
}
converter.setHeight(this.height);
}
// The quality is just swallowed if the result type is not correct.
if(allowedToSetQuality(resultType)) {
if(!Float.isNaN(this.quality)) {
// Throws BuildException.
converter.setQuality(getQuality(this.quality));
} else {
// Set something to quiet irritating error
// from JPEGTranscoder.
converter.setQuality(DEFAULT_QUALITY);
}
}
if(this.area != null) {
// Throws BuildException.
converter.setArea(getAreaOfInterest(this.area));
}
if(this.background != null) {
// Throws BuildException.
converter.setBackgroundColor(getBackgroundColor(this.background));
}
if(this.mediaType != null) {
// Ant takes care of the correct media type values.
converter.setMediaType(this.mediaType);
}
if(!Float.isNaN(this.dpi)) {
if(this.dpi < 0) {
throw new BuildException("Value in dpi parameter must positive.");
}
// The calculation is the same as 2.54/dpi*10 where
converter.setPixelToMillimeter(25.4f/this.dpi);
}
if(this.language != null) {
converter.setLanguage(this.language);
}
}
/**
* Gets source files from the task parameters and child elements,
* combines those to a one list, and returns the list.
*
* @return Array of source filename strings.
*/
protected String[] getSourceFiles() {
String[] list; // Input files in array.
ArrayList inputFiles = new ArrayList(); // Input files in temp list.
if(this.srcFile != null) {
// Only one source and destination file have been set.
inputFiles.add(this.srcFile.getAbsolutePath());
} else {
// Unknown number of files have to be converted. destdir
// attribute and either srcdir attribute or fileset element
// have been set.
// Read source files from the child patterns.
// The value of srcdir attribute overrides the dir attribute in
// fileset element.
if(this.srcDir != null) {
// fileset is declared in the super class.
// Scan to get all the files in srcdir directory that
// should be in input files.
fileset.setDir(this.srcDir);
DirectoryScanner ds = fileset.getDirectoryScanner(project);
String[] includedFiles = ds.getIncludedFiles();
// Add file and its path to the input file vector.
for (int j = 0 ; j < includedFiles.length ; j++) {
File newFile = new File(srcDir.getPath(), includedFiles[j]);
inputFiles.add(newFile.getAbsolutePath());
}
}
// Read source files from child filesets.
for (int i = 0 ; i < filesets.size() ; i++) {
// Scan to get all the files in this fileset that
// should be in input files.
FileSet fs = (FileSet) filesets.elementAt(i);
DirectoryScanner ds = fs.getDirectoryScanner(project);
String[] includedFiles = ds.getIncludedFiles();
// Add file and its path to the input file vector.
for (int j = 0 ; j < includedFiles.length ; j++) {
File newFile = new File(fs.getDir(project).getPath(), includedFiles[j]);
inputFiles.add(newFile.getAbsolutePath());
}
}
}
// Copy items from list object to array.
list = new String[inputFiles.size()];
Iterator iter = inputFiles.iterator();
for(int i = 0 ; iter.hasNext() ; i++) {
list[i] = (String)iter.next();
}
return list;
}
/**
* Returns the correct result image type object.
*
* @param type Result image type as a string.
*
* @return Result image type as an object or <code>null</code> if the parameter doesn't have corresponding object.
*/
protected DestinationType getResultType(String type) {
if(type.equals(DestinationType.PNG_STR)) {
return DestinationType.PNG;
} else if(type.equals(DestinationType.JPEG_STR)) {
return DestinationType.JPEG;
} else if(type.equals(DestinationType.TIFF_STR)) {
return DestinationType.TIFF;
} else if(type.equals(DestinationType.PDF_STR)) {
return DestinationType.PDF;
}
return null;
}
/**
* Checks if the quality value can be set. Only result image type
* is checked.
*
* @param type Result image type.
*
* @return <code>true</code> if the quality can be set and <code>false</code> otherwise.
*/
protected boolean allowedToSetQuality(DestinationType type) {
if(!type.toString().equals(DestinationType.JPEG_STR)) {
return false;
}
return true;
}
/**
* Returns a valid quality value.
*
* @param quality Input quality value to be tested.
*
* @return Valid quality value.
*
* @throws BuildException Input quality value is not valid.
*/
protected float getQuality(float quality)
throws BuildException {
if((quality <= 0) || (quality >= 1)) {
throw new BuildException("quality parameter value have to be between 0 and 1.");
}
return quality;
}
/**
* Returns a valid Area of Interest (AOI) as a Rectangle2D object.
*
* @param area AOI input area.
*
* @return A valid AOI rectangle.
*
* @throws BuildException AOI area is invalid.
*/
protected Rectangle2D getAreaOfInterest(String area)
throws BuildException {
float x; // Upper left x point value of the area.
float y; // Upper left y point value of the area.
float width; // Area width value.
float height; // Area height value.
String token; // A token from the input string.
StringTokenizer tokenizer = new StringTokenizer(area, ", \t\n\r\f");
// Input string tokenizer.
if(tokenizer.countTokens() != 4) {
throw new BuildException("There must be four numbers in the area parameter: x, y, width, and height.");
}
try {
x = Float.parseFloat(tokenizer.nextToken());
y = Float.parseFloat(tokenizer.nextToken());
width = Float.parseFloat(tokenizer.nextToken());
height = Float.parseFloat(tokenizer.nextToken());
} catch(NumberFormatException nfe) {
throw new BuildException("Invalid area parameter value: " + nfe.toString());
}
// Negative values are not allowed.
if((x < 0) || (y < 0) || (width < 0) || (height < 0)) {
throw new BuildException("Negative values are not allowed in area parameter.");
}
return new Rectangle2D.Float(x, y, width, height);
}
/**
* Returns a valid background color object.
*
* @param argb String containing color channel values.
*
* @return A valid background color.
*
* @throws BuildException Input value is invalid.
*/
protected Color getBackgroundColor(String argb)
throws BuildException {
int a; // Value of the alpha channel.
int r; // Value of the red channel.
int g; // Value of the green channel.
int b; // Value of the blue channel.
String token; // A token from the input string.
StringTokenizer tokenizer = new StringTokenizer(argb, ", \t\n\r\f");
// Input string tokenizer.
try {
if(tokenizer.countTokens() == 3) {
// Default alpha channel is opaque.
a = 255;
} else if(tokenizer.countTokens() == 4) {
a = Integer.parseInt(tokenizer.nextToken());
} else {
throw new BuildException("There must be either three or four numbers in bg parameter: (alpha,) red, green, and blue.");
}
r = Integer.parseInt(tokenizer.nextToken());
g = Integer.parseInt(tokenizer.nextToken());
b = Integer.parseInt(tokenizer.nextToken());
} catch(NumberFormatException nfe) {
throw new BuildException("Invalid bg parameter value: " + nfe.toString());
}
// Check that the values are valid.
if((a < 0) ||(a > 255) || (r < 0) ||(r > 255) ||
(g < 0) ||(g > 255) || (b < 0) ||(b > 255)) {
throw new BuildException("bg parameter value is invalid. Numbers have to be between 0 and 255.");
}
return new Color(r, g, b, a);
}
// -----------------------------------------------------------------------
// Inner classes
// -----------------------------------------------------------------------
/**
* Defines the valid attribute values for <code>result</code> parameter.
*
* <p>See the Ant documentation for more information.</p>
*
* @author <a href="mailto:ruini@iki.fi">Henri Ruini</a>
* @version $Id: RasterizerTask.java,v 1.1 2001/11/28 08:59:12 vhardy Exp $
*/
public static class ValidImageTypes extends EnumeratedAttribute {
/**
* Defines valid image types.
*
* @return Array of valid values as strings.
*/
public String[] getValues() {
return new String[]
{DestinationType.PNG_STR,
DestinationType.JPEG_STR,
DestinationType.TIFF_STR,
DestinationType.PDF_STR};
}
}
/**
* Defines the valid attribute values for a media parameter.
*
* <p>See the Ant documentation for more information.</p>
*
* @author <a href="mailto:ruini@iki.fi">Henri Ruini</a>
* @version $Id: RasterizerTask.java,v 1.1 2001/11/28 08:59:12 vhardy Exp $
*/
public static class ValidMediaTypes extends EnumeratedAttribute {
/**
* Defines valid media types.
*
* <p>The types are defined in CSS2 specification.
* Only visual media group is supported.</p>
*
* @return Array of valid values as strings.
*/
public String[] getValues() {
return new String[] {"all", "handheld", "print",
"projection", "screen", "tty", "tv"};
}
}
}
1.1 xml-batik/contrib/rasterizertask/sources/org/apache/tools/ant/taskdefs/optional/RasterizerTaskSVGConverterController.java
Index: RasterizerTaskSVGConverterController.java
===================================================================
/*****************************************************************************
* Copyright (C) The Apache Software Foundation. All rights reserved. *
* ------------------------------------------------------------------------- *
* This software is published under the terms of the Apache Software License *
* version 1.1, a copy of which has been included with this distribution in *
* the LICENSE file. *
*****************************************************************************/
package org.apache.tools.ant.taskdefs.optional;
// -- Batik classes ----------------------------------------------------------
import org.apache.batik.transcoder.Transcoder;
import org.apache.batik.apps.rasterizer.SVGConverterController;
import org.apache.batik.apps.rasterizer.SVGConverterSource;
// -- Ant classes ------------------------------------------------------------
import org.apache.tools.ant.Task;
// -- Java SDK classes -------------------------------------------------------
import java.io.File;
import java.util.Vector;
import java.util.Map;
/**
* Implements simple controller for the <code>SVGConverter</code> operation.
*
* <p>This is almost the same as the
* {@link org.apache.batik.apps.rasterizer.DefaultSVGConverterController DefaultSVGConverterController}
* except this produces error message when the conversion fails.</p>
*
* <p>See {@link SVGConverterController} for the method documentation.</p>
*
* @see SVGConverterController SVGConverterController
* @see org.apache.batik.apps.rasterizer.DefaultSVGConverterController DefaultSVGConverterController
*
* @author <a href="mailto:ruini@iki.fi">Henri Ruini</a>
* @version $Id: RasterizerTaskSVGConverterController.java,v 1.1 2001/11/28 08:59:12 vhardy Exp $
*/
public class RasterizerTaskSVGConverterController implements SVGConverterController {
// -- Class variables ----------------------------------------------------
/** Ant task that is used to log messages. */
protected Task executingTask = null;
// -- Constructors -------------------------------------------------------
/**
* Don't allow public usage.
*/
protected RasterizerTaskSVGConverterController() {
}
/**
* Sets the given Ant task to receive log messages.
*
* @param task Ant task. The value can be <code>null</code> when log messages won't be written.
*/
public RasterizerTaskSVGConverterController(Task task) {
executingTask = task;
}
// -- Public interface ---------------------------------------------------
public boolean proceedWithComputedTask(Transcoder transcoder,
Map hints,
Vector sources,
Vector dest){
return true;
}
public boolean proceedWithSourceTranscoding(SVGConverterSource source,
File dest) {
return true;
}
public boolean proceedOnSourceTranscodingFailure(SVGConverterSource source,
File dest,
String errorCode){
if(executingTask != null) {
executingTask.log("Unable to rasterize image from '"
+ source.getName() + "' to '"
+ dest.getAbsolutePath() + "': " + errorCode);
}
return true;
}
public void onSourceTranscodingSuccess(SVGConverterSource source,
File dest){
}
}
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