/*
* Copyright (c) 2005-2010 Flamingo Kirill Grouchnikov. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* o Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* o Neither the name of Flamingo Kirill Grouchnikov nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.pushingpixels.flamingo.api.svg;
import java.awt.*;
import java.awt.geom.*;
import java.io.*;
import java.lang.reflect.Field;
import org.apache.batik.ext.awt.LinearGradientPaint;
import org.apache.batik.ext.awt.MultipleGradientPaint;
import org.apache.batik.ext.awt.RadialGradientPaint;
import org.apache.batik.ext.awt.MultipleGradientPaint.ColorSpaceEnum;
import org.apache.batik.ext.awt.MultipleGradientPaint.CycleMethodEnum;
import org.apache.batik.ext.awt.geom.ExtendedGeneralPath;
import org.apache.batik.gvt.*;
/**
* SVG to Java2D transcoder.
*
* @author Kirill Grouchnikov.
*/
abstract class SvgBaseTranscoder {
/**
* Listener.
*/
protected TranscoderListener listener;
/**
* Print writer that wraps the {@link TranscoderListener#getWriter()} of the
* registered {@link #listener}.
*/
protected PrintWriter externalPrintWriter;
/**
* Print writer that wraps the {@link TranscoderListener#getWriter()} of the
* registered {@link #listener}.
*/
protected PrintWriter printWriter;
/**
* Class name for the generated Java2D code.
*/
protected String javaClassName;
/**
* Package name for the generated Java2D code.
*/
protected String javaPackageName;
protected boolean javaToImplementResizableIconInterface;
protected final static String TOKEN_PACKAGE = "TOKEN_PACKAGE";
protected final static String TOKEN_CLASSNAME = "TOKEN_CLASSNAME";
protected final static String TOKEN_PAINTING_CODE = "TOKEN_PAINTING_CODE";
protected final static String TOKEN_ORIG_X = "TOKEN_ORIG_X";
protected final static String TOKEN_ORIG_Y = "TOKEN_ORIG_Y";
protected final static String TOKEN_ORIG_WIDTH = "TOKEN_ORIG_WIDTH";
protected final static String TOKEN_ORIG_HEIGHT = "TOKEN_ORIG_HEIGHT";
/**
* Creates a new transcoder.
*
* @param uri
* URI of the SVG image.
* @param javaClassname
* Classname for the generated Java2D code.
*/
public SvgBaseTranscoder(String javaClassname) {
this.javaClassName = javaClassname;
this.javaToImplementResizableIconInterface = false;
}
public void setJavaToImplementResizableIconInterface(
boolean javaToImplementResizableIconInterface) {
this.javaToImplementResizableIconInterface = javaToImplementResizableIconInterface;
}
public void setJavaPackageName(String javaPackageName) {
this.javaPackageName = javaPackageName;
}
/**
* Sets the listener.
*
* @param listener
* Listener.
*/
public void setListener(TranscoderListener listener) {
this.listener = listener;
this.setPrintWriter(new PrintWriter(this.listener.getWriter()));
}
public void setPrintWriter(PrintWriter printWriter) {
this.externalPrintWriter = printWriter;
}
/**
* Transcodes the SVG image into Java2D code.
*/
public void transcode(GraphicsNode gvtRoot) {
String template = this.javaToImplementResizableIconInterface ? "SvgTranscoderTemplateResizable.templ"
: "SvgTranscoderTemplatePlain.templ";
// load the template
InputStream templateStream = SvgBaseTranscoder.class
.getResourceAsStream(template);
StringBuffer templateBuffer = new StringBuffer();
BufferedReader templateReader = new BufferedReader(
new InputStreamReader(templateStream));
try {
while (true) {
String line = templateReader.readLine();
if (line == null)
break;
templateBuffer.append(line + "\n");
}
templateReader.close();
} catch (IOException ioe) {
ioe.printStackTrace();
}
String templateString = templateBuffer.toString();
if (javaPackageName != null) {
templateString = templateString.replaceAll(TOKEN_PACKAGE,
"package " + javaPackageName + ";");
} else {
templateString = templateString.replaceAll(TOKEN_PACKAGE, "");
}
templateString = templateString.replaceAll(TOKEN_CLASSNAME,
javaClassName);
templateString = templateString.replaceAll(TOKEN_CLASSNAME,
javaClassName);
templateString = templateString.replaceAll(TOKEN_CLASSNAME,
javaClassName);
ByteArrayOutputStream paintingCodeStream = new ByteArrayOutputStream();
this.printWriter = new PrintWriter(paintingCodeStream);
transcodeGraphicsNode(gvtRoot, "");
this.printWriter.close();
String paintingCode = new String(paintingCodeStream.toByteArray());
templateString = templateString.replaceAll(TOKEN_PAINTING_CODE,
paintingCode);
Rectangle2D bounds = gvtRoot.getBounds();
templateString = templateString.replaceAll(TOKEN_ORIG_X, ""
+ (int) Math.ceil(bounds.getX()));
templateString = templateString.replaceAll(TOKEN_ORIG_Y, ""
+ (int) Math.ceil(bounds.getY()));
templateString = templateString.replaceAll(TOKEN_ORIG_WIDTH, ""
+ (int) Math.ceil(bounds.getWidth()));
templateString = templateString.replaceAll(TOKEN_ORIG_HEIGHT, ""
+ (int) Math.ceil(bounds.getHeight()));
this.externalPrintWriter.println(templateString);
this.externalPrintWriter.close();
if (listener != null)
listener.finished();
}
/**
* Transcodes the specified path iterator.
*
* @param pathIterator
* Path iterator.
*/
private void transcodePathIterator(PathIterator pathIterator) {
float[] coords = new float[6];
printWriter.println("shape = new GeneralPath();");
for (; !pathIterator.isDone(); pathIterator.next()) {
int type = pathIterator.currentSegment(coords);
switch (type) {
case PathIterator.SEG_CUBICTO:
// offset(offset + 1);
// printWriter.println("CUBICTO " + coords[0] + ":" + coords[1]
// + ":" + coords[2] + ":" + coords[3] + ":"
// + coords[4] + ":" + coords[5]);
printWriter.println("((GeneralPath)shape).curveTo(" + coords[0]
+ ", " + coords[1] + ", " + coords[2] + ", "
+ coords[3] + ", " + coords[4] + ", " + coords[5]
+ ");");
break;
case PathIterator.SEG_QUADTO:
// offset(offset + 1);
// printWriter.println("QUADTO " + coords[0] + ":" + coords[1]
// + ":" + coords[2] + ":" + coords[3]);
printWriter.println("((GeneralPath)shape).quadTo(" + coords[0]
+ ", " + coords[1] + ", " + coords[2] + ", "
+ coords[3] + ");");
break;
case PathIterator.SEG_MOVETO:
// offset(offset + 1);
// printWriter.println("MOVETO " + coords[0] + ":" + coords[1]);
printWriter.println("((GeneralPath)shape).moveTo(" + coords[0]
+ ", " + coords[1] + ");");
break;
case PathIterator.SEG_LINETO:
// offset(offset + 1);
// printWriter.println("LINETO " + coords[0] + ":" + coords[1]);
printWriter.println("((GeneralPath)shape).lineTo(" + coords[0]
+ ", " + coords[1] + ");");
break;
// through
case PathIterator.SEG_CLOSE:
// offset(offset + 1);
// printWriter.println("CLOSE");
printWriter.println("((GeneralPath)shape).closePath();");
break;
}
}
}
/**
* Transcodes the specified shape.
*
* @param shape
* Shape.
* @throws UnsupportedOperationException
* if the shape is unsupported.
*/
private void transcodeShape(Shape shape)
throws UnsupportedOperationException {
if (shape instanceof ExtendedGeneralPath) {
transcodePathIterator(((ExtendedGeneralPath) shape)
.getPathIterator(null));
return;
}
if (shape instanceof GeneralPath) {
transcodePathIterator(((GeneralPath) shape).getPathIterator(null));
return;
}
if (shape instanceof Rectangle2D) {
Rectangle2D rect = (Rectangle2D) shape;
printWriter.println("shape = new Rectangle2D.Double(" + rect.getX()
+ ", " + rect.getY() + ", " + rect.getWidth() + ", "
+ rect.getHeight() + ");");
return;
}
if (shape instanceof RoundRectangle2D) {
RoundRectangle2D rRect = (RoundRectangle2D) shape;
printWriter.println("shape = new RoundRectangle2D.Double("
+ rRect.getX() + ", " + rRect.getY() + ", "
+ rRect.getWidth() + ", " + rRect.getHeight() + ", "
+ rRect.getArcWidth() + ", " + rRect.getArcHeight() + ");");
return;
}
if (shape instanceof Ellipse2D) {
Ellipse2D ell = (Ellipse2D) shape;
printWriter.println("shape = new Ellipse2D.Double(" + ell.getX()
+ ", " + ell.getY() + ", " + ell.getWidth() + ", "
+ ell.getHeight() + ");");
return;
}
if (shape instanceof Line2D.Float) {
Line2D.Float l2df = (Line2D.Float) shape;
printWriter.format("shape = new Line2D.Float(%ff,%ff,%ff,%ff);\n",
l2df.x1, l2df.y1, l2df.x2, l2df.y2);
return;
}
throw new UnsupportedOperationException(shape.getClass()
.getCanonicalName());
}
/**
* Transcodes the specified linear gradient paint.
*
* @param paint
* Linear gradient paint.
* @throws IllegalArgumentException
* if the fractions are not strictly increasing.
*/
private void transcodeLinearGradientPaint(LinearGradientPaint paint)
throws IllegalArgumentException {
Point2D startPoint = paint.getStartPoint();
Point2D endPoint = paint.getEndPoint();
float[] fractions = paint.getFractions();
Color[] colors = paint.getColors();
CycleMethodEnum cycleMethod = paint.getCycleMethod();
ColorSpaceEnum colorSpace = paint.getColorSpace();
AffineTransform transform = paint.getTransform();
float previousFraction = -1.0f;
for (float currentFraction : fractions) {
if (currentFraction < 0f || currentFraction > 1f) {
throw new IllegalArgumentException("Fraction values must "
+ "be in the range 0 to 1: " + currentFraction);
}
if (currentFraction < previousFraction) {
throw new IllegalArgumentException("Keyframe fractions "
+ "must be non-decreasing: " + currentFraction);
}
previousFraction = currentFraction;
}
StringBuffer fractionsRep = new StringBuffer();
if (fractions == null) {
fractionsRep.append("null");
} else {
String sep = "";
fractionsRep.append("new float[] {");
previousFraction = -1.0f;
for (float currentFraction : fractions) {
fractionsRep.append(sep);
if (currentFraction == previousFraction)
currentFraction += 0.000000001f;
fractionsRep.append(currentFraction + "f");
sep = ",";
previousFraction = currentFraction;
}
fractionsRep.append("}");
}
StringBuffer colorsRep = new StringBuffer();
if (fractions == null) {
colorsRep.append("null");
} else {
String sep = "";
colorsRep.append("new Color[] {");
for (Color color : colors) {
colorsRep.append(sep);
colorsRep.append("new Color(" + color.getRed() + ", "
+ color.getGreen() + ", " + color.getBlue() + ", "
+ color.getAlpha() + ")");
sep = ",";
}
colorsRep.append("}");
}
String cycleMethodRep = null;
if (cycleMethod == MultipleGradientPaint.NO_CYCLE) {
cycleMethodRep = "MultipleGradientPaint.CycleMethod.NO_CYCLE";
}
if (cycleMethod == MultipleGradientPaint.REFLECT) {
cycleMethodRep = "MultipleGradientPaint.CycleMethod.REFLECT";
}
if (cycleMethod == MultipleGradientPaint.REPEAT) {
cycleMethodRep = "MultipleGradientPaint.CycleMethod.REPEAT";
}
String colorSpaceRep = null;
if (colorSpace == MultipleGradientPaint.SRGB) {
colorSpaceRep = "MultipleGradientPaint.ColorSpaceType.SRGB";
}
if (colorSpace == MultipleGradientPaint.LINEAR_RGB) {
colorSpaceRep = "MultipleGradientPaint.ColorSpaceType.LINEAR_RGB";
}
double[] transfMatrix = new double[6];
transform.getMatrix(transfMatrix);
this.printWriter
.println("paint = new LinearGradientPaint(new Point2D.Double("
+ startPoint.getX() + ", " + startPoint.getY()
+ "), new Point2D.Double(" + endPoint.getX() + ", "
+ endPoint.getY() + "), " + fractionsRep.toString()
+ ", " + colorsRep.toString() + ", " + cycleMethodRep
+ ", " + colorSpaceRep + ", new AffineTransform("
+ transfMatrix[0] + "f, " + transfMatrix[1] + "f, "
+ transfMatrix[2] + "f, " + transfMatrix[3] + "f, "
+ transfMatrix[4] + "f, " + transfMatrix[5] + "f));");
// offset(offset);
// printWriter.println("LinearGradientPaint");
// // offset(offset + 1);
// printWriter.println("START : " + paint.getStartPoint());
// // offset(offset + 1);
// printWriter.println("END : " + paint.getEndPoint());
// // offset(offset + 1);
// printWriter.println("FRACTIONS : " + paint.getFractions());
// // offset(offset + 1);
// printWriter.println("CYCLE_METHOD : " + paint.getCycleMethod());
// // offset(offset + 1);
// printWriter.println("COLOR_SPACE : " + paint.getColorSpace());
// // offset(offset + 1);
// printWriter.println("GRADIENT_TRANSFORM : " + paint.getTransform());
}
/**
* Transcodes the specified radial gradient paint.
*
* @param paint
* Radial gradient paint.
* @throws IllegalArgumentException
* if the fractions are not strictly increasing.
*/
private void transcodeRadialGradientPaint(RadialGradientPaint paint)
throws IllegalArgumentException {
// offset(offset);
Point2D centerPoint = paint.getCenterPoint();
float radius = paint.getRadius();
Point2D focusPoint = paint.getFocusPoint();
float[] fractions = paint.getFractions();
Color[] colors = paint.getColors();
CycleMethodEnum cycleMethod = paint.getCycleMethod();
ColorSpaceEnum colorSpace = paint.getColorSpace();
AffineTransform transform = paint.getTransform();
float previousFraction = -1.0f;
for (float currentFraction : fractions) {
if (currentFraction < 0f || currentFraction > 1f) {
throw new IllegalArgumentException("Fraction values must "
+ "be in the range 0 to 1: " + currentFraction);
}
if (currentFraction < previousFraction) {
throw new IllegalArgumentException("Keyframe fractions "
+ "must be non-decreasing: " + currentFraction);
}
previousFraction = currentFraction;
}
StringBuffer fractionsRep = new StringBuffer();
if (fractions == null) {
fractionsRep.append("null");
} else {
String sep = "";
fractionsRep.append("new float[] {");
previousFraction = -1.0f;
for (float currentFraction : fractions) {
fractionsRep.append(sep);
if (currentFraction == previousFraction)
currentFraction += 0.000000001f;
fractionsRep.append(currentFraction + "f");
sep = ",";
previousFraction = currentFraction;
}
fractionsRep.append("}");
}
StringBuffer colorsRep = new StringBuffer();
if (fractions == null) {
colorsRep.append("null");
} else {
String sep = "";
colorsRep.append("new Color[] {");
for (Color color : colors) {
colorsRep.append(sep);
colorsRep.append("new Color(" + color.getRed() + ", "
+ color.getGreen() + ", " + color.getBlue() + ", "
+ color.getAlpha() + ")");
sep = ",";
}
colorsRep.append("}");
}
String cycleMethodRep = null;
if (cycleMethod == MultipleGradientPaint.NO_CYCLE) {
cycleMethodRep = "MultipleGradientPaint.CycleMethod.NO_CYCLE";
}
if (cycleMethod == MultipleGradientPaint.REFLECT) {
cycleMethodRep = "MultipleGradientPaint.CycleMethod.REFLECT";
}
if (cycleMethod == MultipleGradientPaint.REPEAT) {
cycleMethodRep = "MultipleGradientPaint.CycleMethod.REPEAT";
}
String colorSpaceRep = null;
if (colorSpace == MultipleGradientPaint.SRGB) {
colorSpaceRep = "MultipleGradientPaint.ColorSpaceType.SRGB";
}
if (colorSpace == MultipleGradientPaint.LINEAR_RGB) {
colorSpaceRep = "MultipleGradientPaint.ColorSpaceType.LINEAR_RGB";
}
double[] transfMatrix = new double[6];
transform.getMatrix(transfMatrix);
this.printWriter
.println("paint = new RadialGradientPaint(new Point2D.Double("
+ centerPoint.getX() + ", " + centerPoint.getY()
+ "), " + radius + "f, new Point2D.Double("
+ focusPoint.getX() + ", " + focusPoint.getY() + "), "
+ fractionsRep.toString() + ", " + colorsRep.toString()
+ ", " + cycleMethodRep + ", " + colorSpaceRep
+ ", new AffineTransform(" + transfMatrix[0] + "f, "
+ transfMatrix[1] + "f, " + transfMatrix[2] + "f, "
+ transfMatrix[3] + "f, " + transfMatrix[4] + "f, "
+ transfMatrix[5] + "f));");
//
// printWriter.println("RadialGradientPaint");
// // offset(offset + 1);
// printWriter.println("CENTER : " + paint.getCenterPoint());
// // offset(offset + 1);
// printWriter.println("RADIUS : " + paint.getRadius());
// // offset(offset + 1);
// printWriter.println("FOCUS : " + paint.getFocusPoint());
// // offset(offset + 1);
// printWriter.println("FRACTIONS : " + paint.getFractions());
// // offset(offset + 1);
// printWriter.println("COLORS : " + paint.getColors());
// // offset(offset + 1);
// printWriter.println("CYCLE_METHOD : " + paint.getCycleMethod());
// // offset(offset + 1);
// printWriter.println("COLOR_SPACE : " + paint.getColorSpace());
// // offset(offset + 1);
// printWriter.println("GRADIENT_TRANSFORM : " + paint.getTransform());
}
/**
* Transcodes the specified paint.
*
* @param paint
* Paint.
* @throws UnsupportedOperationException
* if the paint is unsupported.
*/
private void transcodePaint(Paint paint)
throws UnsupportedOperationException {
if (paint instanceof RadialGradientPaint) {
transcodeRadialGradientPaint((RadialGradientPaint) paint);
return;
}
if (paint instanceof LinearGradientPaint) {
transcodeLinearGradientPaint((LinearGradientPaint) paint);
return;
}
if (paint instanceof Color) {
// offset(offset);
// printWriter.println((Color) paint);
Color c = (Color) paint;
printWriter.println("paint = new Color(" + c.getRed() + ", "
+ c.getGreen() + ", " + c.getBlue() + ", " + c.getAlpha()
+ ");");
return;
}
if (paint == null) {
// offset(offset);
printWriter.println("No paint");
return;
}
throw new UnsupportedOperationException(paint.getClass()
.getCanonicalName());
}
/**
* Transcodes the specified shape painter.
*
* @param painter
* Shape painter.
* @throws UnsupportedOperationException
* if the shape painter is unsupported.
*/
private void transcodeShapePainter(ShapePainter painter)
throws UnsupportedOperationException {
if (painter == null)
return;
if (painter instanceof CompositeShapePainter) {
transcodeCompositeShapePainter((CompositeShapePainter) painter);
return;
}
if (painter instanceof FillShapePainter) {
transcodeFillShapePainter((FillShapePainter) painter);
return;
}
if (painter instanceof StrokeShapePainter) {
transcodeStrokeShapePainter((StrokeShapePainter) painter);
return;
}
throw new UnsupportedOperationException(painter.getClass()
.getCanonicalName());
}
/**
* Transcodes the specified composite shape painter.
*
* @param painter
* Composite shape painter.
*/
private void transcodeCompositeShapePainter(CompositeShapePainter painter) {
// offset(offset);
// printWriter.println("CompositeShapePainter");
for (int i = 0; i < painter.getShapePainterCount(); i++) {
transcodeShapePainter(painter.getShapePainter(i));
}
}
/**
* Transcodes the specified fill shape painter.
*
* @param painter
* Fill shape painter.
*/
private void transcodeFillShapePainter(FillShapePainter painter) {
try {
Field paintFld = FillShapePainter.class.getDeclaredField("paint");
paintFld.setAccessible(true);
Paint paint = (Paint) paintFld.get(painter);
if (paint == null)
return;
transcodePaint(paint);
} catch (Exception exc) {
exc.printStackTrace();
}
Shape shape = painter.getShape();
// offset(offset);
// printWriter.println("FillShapePainter");
transcodeShape(shape);
printWriter.println("g.setPaint(paint);");
printWriter.println("g.fill(shape);");
}
/**
* Transcodes the specified stroke shape painter.
*
* @param painter
* Stroke shape painter.
*/
private void transcodeStrokeShapePainter(StrokeShapePainter painter) {
Shape shape = painter.getShape();
// offset(offset);
// printWriter.println("StrokeShapePainter");
try {
Field paintFld = StrokeShapePainter.class.getDeclaredField("paint");
paintFld.setAccessible(true);
Paint paint = (Paint) paintFld.get(painter);
if (paint == null)
return;
transcodePaint(paint);
// offset(offset + 1);
// printWriter.println(paint);
} catch (Exception exc) {
exc.printStackTrace();
}
try {
Field strokeFld = StrokeShapePainter.class
.getDeclaredField("stroke");
strokeFld.setAccessible(true);
Stroke stroke = (Stroke) strokeFld.get(painter);
// offset(offset + 1);
BasicStroke bStroke = (BasicStroke) stroke;
float width = bStroke.getLineWidth();
int cap = bStroke.getEndCap();
int join = bStroke.getLineJoin();
float miterlimit = bStroke.getMiterLimit();
float[] dash = bStroke.getDashArray();
float dash_phase = bStroke.getDashPhase();
StringBuffer dashRep = new StringBuffer();
if (dash == null) {
dashRep.append("null");
} else {
String sep = "";
dashRep.append("new float[] {");
for (float _dash : dash) {
dashRep.append(sep);
dashRep.append(_dash + "f");
sep = ",";
}
dashRep.append("}");
}
printWriter.println("stroke = new BasicStroke(" + width + "f,"
+ cap + "," + join + "," + miterlimit + "f," + dashRep
+ "," + dash_phase + "f);");
} catch (Exception exc) {
exc.printStackTrace();
}
transcodeShape(shape);
printWriter.println("g.setPaint(paint);");
printWriter.println("g.setStroke(stroke);");
printWriter.println("g.draw(shape);");
}
/**
* Transcodes the specified shape node.
*
* @param node
* Shape node.
* @param comment
* Comment (for associating the Java2D section with the
* corresponding SVG section).
*/
private void transcodeShapeNode(ShapeNode node, String comment) {
// offset(offset);
// printWriter.println("ShapeNode");
printWriter.println("// " + comment);
ShapePainter sPainter = node.getShapePainter();
transcodeShapePainter(sPainter);
}
/**
* Transcodes the specified composite graphics node.
*
* @param node
* Composite graphics node.
* @param comment
* Comment (for associating the Java2D section with the
* corresponding SVG section).
*/
private void transcodeCompositeGraphicsNode(CompositeGraphicsNode node,
String comment) {
printWriter.println("// " + comment);
// offset(offset);
// printWriter.println("CompositeGraphicsNode");
int count = 0;
for (Object obj : node.getChildren()) {
transcodeGraphicsNode((GraphicsNode) obj, comment + "_" + count);
count++;
}
}
/**
* Transcodes the specified graphics node.
*
* @param node
* Graphics node.
* @param comment
* Comment (for associating the Java2D section with the
* corresponding SVG section).
* @throws UnsupportedOperationException
* if the graphics node is unsupported.
*/
private void transcodeGraphicsNode(GraphicsNode node, String comment)
throws UnsupportedOperationException {
AlphaComposite composite = (AlphaComposite) node.getComposite();
if (composite != null) {
int rule = composite.getRule();
float alpha = composite.getAlpha();
printWriter.println("g.setComposite(AlphaComposite.getInstance("
+ rule + ", " + alpha + "f * origAlpha));");
}
AffineTransform transform = node.getTransform();
printWriter.println("AffineTransform defaultTransform_" + comment
+ " = g.getTransform();");
if (transform != null) {
// printWriter.println("g.transform(new AffineTransform());");
// } else {
double[] transfMatrix = new double[6];
transform.getMatrix(transfMatrix);
printWriter.println("g.transform(new AffineTransform("
+ transfMatrix[0] + "f, " + transfMatrix[1] + "f, "
+ transfMatrix[2] + "f, " + transfMatrix[3] + "f, "
+ transfMatrix[4] + "f, " + transfMatrix[5] + "f));");
}
try {
if (node instanceof ShapeNode) {
transcodeShapeNode((ShapeNode) node, comment);
return;
}
if (node instanceof CompositeGraphicsNode) {
transcodeCompositeGraphicsNode((CompositeGraphicsNode) node,
comment);
return;
}
throw new UnsupportedOperationException(node.getClass()
.getCanonicalName());
} finally {
printWriter.println("g.setTransform(defaultTransform_" + comment
+ ");");
}
}
}