jeremias 2003/03/12 07:33:04
Modified: src/java/org/apache/fop/render/ps PSGraphics2D.java
PSRenderer.java
Added: src/java/org/apache/fop/render/ps PSTranscoder.java
PSDocumentGraphics2D.java
Log:
Added the basic infrastructure for the PostScript Transcoder. Works, but output
doesn't look good, yet.
Revision Changes Path
1.2 +19 -2 xml-fop/src/java/org/apache/fop/render/ps/PSGraphics2D.java
Index: PSGraphics2D.java
===================================================================
RCS file: /home/cvs/xml-fop/src/java/org/apache/fop/render/ps/PSGraphics2D.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- PSGraphics2D.java 11 Mar 2003 13:05:22 -0000 1.1
+++ PSGraphics2D.java 12 Mar 2003 15:33:03 -0000 1.2
@@ -149,12 +149,21 @@
/**
* Create a new Graphics2D that generates PostScript code.
* @param textAsShapes True if text should be rendered as graphics
+ * @see
org.apache.batik.ext.awt.g2d.AbstractGraphics2D#AbstractGraphics2D(boolean)
+ */
+ public PSGraphics2D(boolean textAsShapes) {
+ super(textAsShapes);
+ }
+
+ /**
+ * Create a new Graphics2D that generates PostScript code.
+ * @param textAsShapes True if text should be rendered as graphics
* @param gen PostScript generator to use for output
* @see
org.apache.batik.ext.awt.g2d.AbstractGraphics2D#AbstractGraphics2D(boolean)
*/
public PSGraphics2D(boolean textAsShapes, PSGenerator gen) {
- super(textAsShapes);
- this.gen = gen;
+ this(textAsShapes);
+ setPSGenerator(gen);
}
/**
@@ -163,6 +172,14 @@
*/
public PSGraphics2D(PSGraphics2D g) {
super(g);
+ }
+
+ /**
+ * Sets the PostScript generator
+ * @param gen the PostScript generator
+ */
+ public void setPSGenerator(PSGenerator gen) {
+ this.gen = gen;
}
/**
1.2 +18 -15 xml-fop/src/java/org/apache/fop/render/ps/PSRenderer.java
Index: PSRenderer.java
===================================================================
RCS file: /home/cvs/xml-fop/src/java/org/apache/fop/render/ps/PSRenderer.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- PSRenderer.java 11 Mar 2003 13:05:22 -0000 1.1
+++ PSRenderer.java 12 Mar 2003 15:33:03 -0000 1.2
@@ -182,12 +182,15 @@
/**
* Generates the PostScript code for the font dictionary.
+ * @param gen PostScript generator to use for output
* @param fontInfo available fonts
+ * @throws IOException in case of an I/O problem
*/
- protected void writeFontDict(FontInfo fontInfo) {
- writeln("%%BeginResource: procset FOPFonts");
- writeln("%%Title: Font setup (shortcuts) for this file");
- writeln("/FOPFonts 100 dict dup begin");
+ public static void writeFontDict(PSGenerator gen, FontInfo fontInfo)
+ throws IOException {
+ gen.writeln("%%BeginResource: procset FOPFonts");
+ gen.writeln("%%Title: Font setup (shortcuts) for this file");
+ gen.writeln("/FOPFonts 100 dict dup begin");
// write("/gfF1{/Helvetica findfont} bd");
// write("/gfF3{/Helvetica-Bold findfont} bd");
@@ -196,21 +199,21 @@
while (enum.hasNext()) {
String key = (String)enum.next();
Font fm = (Font)fonts.get(key);
- writeln("/" + key + " /" + fm.getFontName() + " def");
+ gen.writeln("/" + key + " /" + fm.getFontName() + " def");
}
- writeln("end def");
- writeln("%%EndResource");
+ gen.writeln("end def");
+ gen.writeln("%%EndResource");
enum = fonts.keySet().iterator();
while (enum.hasNext()) {
String key = (String)enum.next();
Font fm = (Font)fonts.get(key);
- writeln("/" + fm.getFontName() + " findfont");
- writeln("dup length dict begin");
- writeln(" {1 index /FID ne {def} {pop pop} ifelse} forall");
- writeln(" /Encoding ISOLatin1Encoding def");
- writeln(" currentdict");
- writeln("end");
- writeln("/" + fm.getFontName() + " exch definefont pop");
+ gen.writeln("/" + fm.getFontName() + " findfont");
+ gen.writeln("dup length dict begin");
+ gen.writeln(" {1 index /FID ne {def} {pop pop} ifelse} forall");
+ gen.writeln(" /Encoding ISOLatin1Encoding def");
+ gen.writeln(" currentdict");
+ gen.writeln("end");
+ gen.writeln("/" + fm.getFontName() + " exch definefont pop");
}
}
@@ -396,7 +399,7 @@
gen.writeDSCComment(DSCConstants.BEGIN_SETUP);
PSProcSets.writeFOPStdProcSet(gen);
PSProcSets.writeFOPEPSProcSet(gen);
- writeFontDict(fontInfo);
+ writeFontDict(gen, fontInfo);
gen.writeDSCComment(DSCConstants.END_SETUP);
}
1.1 xml-fop/src/java/org/apache/fop/render/ps/PSTranscoder.java
Index: PSTranscoder.java
===================================================================
/*
* $Id: PDFTranscoder.java,v 1.24 2003/03/07 09:51:26 jeremias Exp $
* ============================================================================
* The Apache Software License, Version 1.1
* ============================================================================
*
* Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modifica-
* tion, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowledgment: "This product includes software
* developed by the Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself, if
* and wherever such third-party acknowledgments normally appear.
*
* 4. The names "FOP" and "Apache Software Foundation" must not be used to
* endorse or promote products derived from this software without prior
* written permission. For written permission, please contact
* [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache", nor may
* "Apache" appear in their name, without prior written permission of the
* Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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
* APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
* DING, 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.
* ============================================================================
*
* This software consists of voluntary contributions made by many individuals
* on behalf of the Apache Software Foundation and was originally created by
* James Tauber <[EMAIL PROTECTED]>. For more information on the Apache
* Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.fop.render.ps;
import java.awt.Dimension;
import java.awt.geom.AffineTransform;
import java.awt.geom.Dimension2D;
import java.awt.geom.Rectangle2D;
import java.awt.Color;
import java.net.MalformedURLException;
import java.net.URL;
import java.io.IOException;
import org.apache.batik.bridge.BridgeContext;
import org.apache.batik.bridge.BridgeException;
import org.apache.batik.bridge.GVTBuilder;
import org.apache.batik.bridge.SVGTextElementBridge;
import org.apache.batik.bridge.UserAgent;
import org.apache.batik.bridge.UserAgentAdapter;
import org.apache.batik.bridge.ViewBox;
import org.apache.batik.dom.svg.SAXSVGDocumentFactory;
import org.apache.batik.dom.svg.SVGDOMImplementation;
import org.apache.batik.dom.svg.SVGOMDocument;
import org.apache.batik.dom.util.DocumentFactory;
import org.apache.batik.gvt.GraphicsNode;
import org.apache.batik.transcoder.TranscoderException;
import org.apache.batik.transcoder.TranscoderOutput;
import org.apache.batik.transcoder.XMLAbstractTranscoder;
import org.apache.batik.transcoder.image.resources.Messages;
import org.apache.batik.transcoder.image.ImageTranscoder;
import org.apache.batik.util.SVGConstants;
import org.apache.batik.util.XMLResourceDescriptor;
import org.apache.batik.gvt.TextPainter;
import org.apache.batik.gvt.renderer.StrokingTextPainter;
import org.w3c.dom.DOMImplementation;
import org.w3c.dom.Document;
import org.w3c.dom.svg.SVGDocument;
import org.w3c.dom.svg.SVGSVGElement;
/**
* This class enables to transcode an input to a PostScript document.
*
* <p>Two transcoding hints (<tt>KEY_WIDTH</tt> and
* <tt>KEY_HEIGHT</tt>) can be used to respectively specify the image
* width and the image height. If only one of these keys is specified,
* the transcoder preserves the aspect ratio of the original image.
*
* <p>The <tt>KEY_BACKGROUND_COLOR</tt> defines the background color
* to use for opaque image formats, or the background color that may
* be used for image formats that support alpha channel.
*
* <p>The <tt>KEY_AOI</tt> represents the area of interest to paint
* in device space.
*
* <p>Three additional transcoding hints that act on the SVG
* processor can be specified:
*
* <p><tt>KEY_LANGUAGE</tt> to set the default language to use (may be
* used by a <switch> SVG element for example),
* <tt>KEY_USER_STYLESHEET_URI</tt> to fix the URI of a user
* stylesheet, and <tt>KEY_PIXEL_TO_MM</tt> to specify the pixel to
* millimeter conversion factor.
*
* @author <a href="mailto:[EMAIL PROTECTED]">Keiron Liddle</a>
* @author <a href="mailto:[EMAIL PROTECTED]">Jeremias Maerki</a>
* @version $Id: PDFTranscoder.java,v 1.24 2003/03/07 09:51:26 jeremias Exp $
*/
public class PSTranscoder extends XMLAbstractTranscoder {
/**
* The user agent dedicated to an <tt>ImageTranscoder</tt>.
*/
protected UserAgent userAgent = new ImageTranscoderUserAgent();
/**
* Constructs a new <tt>ImageTranscoder</tt>.
*/
public PSTranscoder() {
hints.put(KEY_DOCUMENT_ELEMENT_NAMESPACE_URI,
SVGConstants.SVG_NAMESPACE_URI);
hints.put(KEY_DOCUMENT_ELEMENT, SVGConstants.SVG_SVG_TAG);
hints.put(KEY_DOM_IMPLEMENTATION,
SVGDOMImplementation.getDOMImplementation());
}
/**
* Transcodes the specified Document as an image in the specified output.
*
* @param document the document to transcode
* @param uri the uri of the document or null if any
* @param output the ouput where to transcode
* @exception TranscoderException if an error occured while transcoding
*/
protected void transcode(Document document, String uri,
TranscoderOutput output) throws TranscoderException {
if (!(document instanceof SVGOMDocument)) {
throw new TranscoderException(Messages.formatMessage("notsvg",
null));
}
SVGDocument svgDoc = (SVGDocument)document;
SVGSVGElement root = svgDoc.getRootElement();
// initialize the SVG document with the appropriate context
String parserClassname = (String)hints.get(KEY_XML_PARSER_CLASSNAME);
PSDocumentGraphics2D graphics = new PSDocumentGraphics2D(false);
// build the GVT tree
GVTBuilder builder = new GVTBuilder();
BridgeContext ctx = new BridgeContext(userAgent);
TextPainter textPainter = null;
textPainter = new StrokingTextPainter();
ctx.setTextPainter(textPainter);
SVGTextElementBridge textElementBridge =
new PSTextElementBridge(graphics.getFontInfo());
ctx.putBridge(textElementBridge);
//PDFAElementBridge pdfAElementBridge = new PDFAElementBridge();
//AffineTransform currentTransform = new AffineTransform(1, 0, 0, 1, 0, 0);
//pdfAElementBridge.setCurrentTransform(currentTransform);
//ctx.putBridge(pdfAElementBridge);
//ctx.putBridge(new PSImageElementBridge());
GraphicsNode gvtRoot;
try {
gvtRoot = builder.build(ctx, svgDoc);
} catch (BridgeException ex) {
throw new TranscoderException(ex);
}
// get the 'width' and 'height' attributes of the SVG document
float docWidth = (float)ctx.getDocumentSize().getWidth();
float docHeight = (float)ctx.getDocumentSize().getHeight();
ctx = null;
builder = null;
// compute the image's width and height according the hints
float imgWidth = -1;
if (hints.containsKey(ImageTranscoder.KEY_WIDTH)) {
imgWidth =
((Float)hints.get(ImageTranscoder.KEY_WIDTH)).floatValue();
}
float imgHeight = -1;
if (hints.containsKey(ImageTranscoder.KEY_HEIGHT)) {
imgHeight =
((Float)hints.get(ImageTranscoder.KEY_HEIGHT)).floatValue();
}
float width, height;
if (imgWidth > 0 && imgHeight > 0) {
width = imgWidth;
height = imgHeight;
} else if (imgHeight > 0) {
width = (docWidth * imgHeight) / docHeight;
height = imgHeight;
} else if (imgWidth > 0) {
width = imgWidth;
height = (docHeight * imgWidth) / docWidth;
} else {
width = docWidth;
height = docHeight;
}
// compute the preserveAspectRatio matrix
AffineTransform px;
String ref = null;
try {
ref = new URL(uri).getRef();
} catch (MalformedURLException ex) {
// nothing to do, catched previously
}
try {
px = ViewBox.getViewTransform(ref, root, width, height);
} catch (BridgeException ex) {
throw new TranscoderException(ex);
}
if (px.isIdentity() && (width != docWidth || height != docHeight)) {
// The document has no viewBox, we need to resize it by hand.
// we want to keep the document size ratio
float d = Math.max(docWidth, docHeight);
float dd = Math.max(width, height);
float scale = dd / d;
px = AffineTransform.getScaleInstance(scale, scale);
}
// take the AOI into account if any
if (hints.containsKey(ImageTranscoder.KEY_AOI)) {
Rectangle2D aoi = (Rectangle2D)hints.get(ImageTranscoder.KEY_AOI);
// transform the AOI into the image's coordinate system
aoi = px.createTransformedShape(aoi).getBounds2D();
AffineTransform mx = new AffineTransform();
double sx = width / aoi.getWidth();
double sy = height / aoi.getHeight();
mx.scale(sx, sy);
double tx = -aoi.getX();
double ty = -aoi.getY();
mx.translate(tx, ty);
// take the AOI transformation matrix into account
// we apply first the preserveAspectRatio matrix
px.preConcatenate(mx);
}
// prepare the image to be painted
int w = (int)width;
int h = (int)height;
try {
graphics.setupDocument(output.getOutputStream(), w, h);
graphics.setSVGDimension(docWidth, docHeight);
if (hints.containsKey(ImageTranscoder.KEY_BACKGROUND_COLOR)) {
graphics.setBackgroundColor((Color)hints.get(ImageTranscoder.KEY_BACKGROUND_COLOR));
}
graphics.setGraphicContext(new
org.apache.batik.ext.awt.g2d.GraphicContext());
graphics.setTransform(px);
gvtRoot.paint(graphics);
graphics.finish();
} catch (IOException ex) {
throw new TranscoderException(ex);
}
}
/**
* Creates a <tt>DocumentFactory</tt> that is used to create an SVG DOM
* tree. The specified DOM Implementation is ignored and the Batik
* SVG DOM Implementation is automatically used.
*
* @param domImpl the DOM Implementation (not used)
* @param parserClassname the XML parser classname
* @return the document factory
*/
protected DocumentFactory createDocumentFactory(DOMImplementation domImpl,
String parserClassname) {
return new SAXSVGDocumentFactory(parserClassname);
}
// --------------------------------------------------------------------
// UserAgent implementation
// --------------------------------------------------------------------
/**
* A user agent implementation for <tt>ImageTranscoder</tt>.
*/
protected class ImageTranscoderUserAgent extends UserAgentAdapter {
/**
* Returns the default size of this user agent (400x400).
* @return the default viewport size
*/
public Dimension2D getViewportSize() {
return new Dimension(400, 400);
}
/**
* Displays the specified error message using the <tt>ErrorHandler</tt>.
* @param message the message to display
*/
public void displayError(String message) {
try {
getErrorHandler().error(new TranscoderException(message));
} catch (TranscoderException ex) {
throw new RuntimeException();
}
}
/**
* Displays the specified error using the <tt>ErrorHandler</tt>.
* @param e the exception to display
*/
public void displayError(Exception e) {
try {
getErrorHandler().error(new TranscoderException(e));
} catch (TranscoderException ex) {
throw new RuntimeException();
}
}
/**
* Displays the specified message using the <tt>ErrorHandler</tt>.
* @param message the message to display
*/
public void displayMessage(String message) {
try {
getErrorHandler().warning(new TranscoderException(message));
} catch (TranscoderException ex) {
throw new RuntimeException();
}
}
/**
* Returns the pixel to millimeter conversion factor specified in the
* <tt>TranscodingHints</tt> or 0.3528 if any.
* @return the pixel unit to millimeter factor
*/
public float getPixelUnitToMillimeter() {
Object key = ImageTranscoder.KEY_PIXEL_UNIT_TO_MILLIMETER;
if (getTranscodingHints().containsKey(key)) {
return ((Float)getTranscodingHints().get(key)).floatValue();
} else {
// return 0.3528f; // 72 dpi
return 0.26458333333333333333333333333333f; // 96dpi
}
}
/**
* Returns the user language specified in the
* <tt>TranscodingHints</tt> or "en" (english) if any.
* @return the languages for the transcoder
*/
public String getLanguages() {
Object key = ImageTranscoder.KEY_LANGUAGE;
if (getTranscodingHints().containsKey(key)) {
return (String)getTranscodingHints().get(key);
} else {
return "en";
}
}
/**
* Get the media for this transcoder. Which is always print.
* @return PostScript media is "print"
*/
public String getMedia() {
return "print";
}
/**
* Returns the user stylesheet specified in the
* <tt>TranscodingHints</tt> or null if any.
* @return the user style sheet URI specified in the hints
*/
public String getUserStyleSheetURI() {
return (String)getTranscodingHints()
.get(ImageTranscoder.KEY_USER_STYLESHEET_URI);
}
/**
* Returns the XML parser to use from the TranscodingHints.
* @return the XML parser class name
*/
public String getXMLParserClassName() {
Object key = KEY_XML_PARSER_CLASSNAME;
if (getTranscodingHints().containsKey(key)) {
return (String)getTranscodingHints().get(key);
} else {
return XMLResourceDescriptor.getXMLParserClassName();
}
}
/**
* Check if the XML parser is validating.
* @return true if the XML parser is validating
*/
public boolean isXMLParserValidating() {
return false;
}
/**
* Unsupported operation.
* @return null since this is unsupported
*/
public AffineTransform getTransform() {
return null;
}
}
}
1.1
xml-fop/src/java/org/apache/fop/render/ps/PSDocumentGraphics2D.java
Index: PSDocumentGraphics2D.java
===================================================================
/*
* $Id: PDFDocumentGraphics2D.java,v 1.27 2003/03/07 09:51:26 jeremias Exp $
* ============================================================================
* The Apache Software License, Version 1.1
* ============================================================================
*
* Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modifica-
* tion, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowledgment: "This product includes software
* developed by the Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself, if
* and wherever such third-party acknowledgments normally appear.
*
* 4. The names "FOP" and "Apache Software Foundation" must not be used to
* endorse or promote products derived from this software without prior
* written permission. For written permission, please contact
* [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache", nor may
* "Apache" appear in their name, without prior written permission of the
* Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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
* APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
* DING, 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.
* ============================================================================
*
* This software consists of voluntary contributions made by many individuals
* on behalf of the Apache Software Foundation and was originally created by
* James Tauber <[EMAIL PROTECTED]>. For more information on the Apache
* Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.fop.render.ps;
//Java
import java.awt.Graphics;
import java.awt.Font;
import java.awt.Color;
import java.awt.Shape;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphVector;
import java.io.OutputStream;
import java.io.IOException;
//FOP
import org.apache.fop.render.pdf.FontSetup;
import org.apache.fop.layout.FontInfo;
/**
* This class is a wrapper for the <tt>PSGraphics2D</tt> that
* is used to create a full document around the PostScript rendering from
* <tt>PSGraphics2D</tt>.
*
* @author <a href="mailto:[EMAIL PROTECTED]">Keiron Liddle</a>
* @author <a href="mailto:[EMAIL PROTECTED]">Jeremias Maerki</a>
* @version $Id: PDFDocumentGraphics2D.java,v 1.27 2003/03/07 09:51:26 jeremias Exp $
* @see org.apache.fop.svg.PSGraphics2D
*/
public class PSDocumentGraphics2D extends PSGraphics2D {
private int width;
private int height;
/**
* Create a new PSDocumentGraphics2D.
* This is used to create a new PostScript document, the height,
* width and output stream can be setup later.
* For use by the transcoder which needs font information
* for the bridge before the document size is known.
* The resulting document is written to the stream after rendering.
*
* @param textAsShapes set this to true so that text will be rendered
* using curves and not the font.
*/
PSDocumentGraphics2D(boolean textAsShapes) {
super(textAsShapes);
if (!textAsShapes) {
fontInfo = new FontInfo();
FontSetup.setup(fontInfo, null);
//FontState fontState = new FontState("Helvetica", "normal",
// FontInfo.NORMAL, 12, 0);
}
currentFontName = "";
currentFontSize = 0;
}
/**
* Setup the document.
* @param stream the output stream to write the document
* @param width the width of the page
* @param height the height of the page
* @throws IOException an io exception if there is a problem
* writing to the output stream
*/
public void setupDocument(OutputStream stream, int width, int height) throws
IOException {
this.width = width;
this.height = height;
final Integer zero = new Integer(0);
final Long pagewidth = new Long(this.width);
final Long pageheight = new Long(this.height);
//Setup for PostScript generation
setPSGenerator(new PSGenerator(stream));
//PostScript Header
gen.writeln(DSCConstants.PS_ADOBE_30);
gen.writeDSCComment(DSCConstants.CREATOR,
new String[] {"FOP PostScript Transcoder for SVG"});
gen.writeDSCComment(DSCConstants.CREATION_DATE,
new Object[] {new java.util.Date()});
gen.writeDSCComment(DSCConstants.PAGES, new Object[] {new Integer(1)});
gen.writeDSCComment(DSCConstants.BBOX, new Object[]
{zero, zero, pagewidth, pageheight});
gen.writeDSCComment(DSCConstants.END_COMMENTS);
//Defaults
gen.writeDSCComment(DSCConstants.BEGIN_DEFAULTS);
gen.writeDSCComment(DSCConstants.END_DEFAULTS);
//Prolog
gen.writeDSCComment(DSCConstants.BEGIN_PROLOG);
gen.writeDSCComment(DSCConstants.END_PROLOG);
//Setup
gen.writeDSCComment(DSCConstants.BEGIN_SETUP);
PSProcSets.writeFOPStdProcSet(gen);
PSProcSets.writeFOPEPSProcSet(gen);
PSRenderer.writeFontDict(gen, fontInfo);
gen.writeDSCComment(DSCConstants.END_SETUP);
//Start page
Integer pageNumber = new Integer(1);
gen.writeDSCComment(DSCConstants.PAGE, new Object[]
{pageNumber.toString(), pageNumber});
gen.writeDSCComment(DSCConstants.PAGE_BBOX, new Object[]
{zero, zero, pagewidth, pageheight});
gen.writeDSCComment(DSCConstants.BEGIN_PAGE_SETUP);
gen.writeln("FOPFonts begin");
gen.writeln("0.001 0.001 scale");
gen.concatMatrix(1, 0, 0, -1, 0, pageheight.doubleValue() * 1000);
gen.writeDSCComment(DSCConstants.END_PAGE_SETUP);
}
/**
* Create a new PSDocumentGraphics2D.
* This is used to create a new PostScript document of the given height
* and width.
* The resulting document is written to the stream after rendering.
*
* @param textAsShapes set this to true so that text will be rendered
* using curves and not the font.
* @param stream the stream that the final document should be written to.
* @param width the width of the document
* @param height the height of the document
* @throws IOException an io exception if there is a problem
* writing to the output stream
*/
public PSDocumentGraphics2D(boolean textAsShapes, OutputStream stream,
int width, int height) throws IOException {
this(textAsShapes);
setupDocument(stream, width, height);
}
/**
* Get the font info for this PostScript document.
* @return the font information
*/
public FontInfo getFontInfo() {
return fontInfo;
}
/**
* Set the dimensions of the SVG document that will be drawn.
* This is useful if the dimensions of the SVG document are different
* from the PostScript document that is to be created.
* The result is scaled so that the SVG fits correctly inside the
* PostScript document.
* @param w the width of the page
* @param h the height of the page
* @throws IOException in case of an I/O problem
*/
public void setSVGDimension(float w, float h) throws IOException {
gen.concatMatrix(width / w, 0, 0, height / h, 0, 0);
}
/**
* Set the background of the PostScript document.
* This is used to set the background for the PostScript document
* Rather than leaving it as the default white.
* @param col the background colour to fill
*/
public void setBackgroundColor(Color col) {
/[EMAIL PROTECTED] Implement this */
/*
Color c = col;
PDFColor currentColour = new PDFColor(c.getRed(), c.getGreen(), c.getBlue());
currentStream.write("q\n");
currentStream.write(currentColour.getColorSpaceOut(true));
currentStream.write("0 0 " + width + " " + height + " re\n");
currentStream.write("f\n");
currentStream.write("Q\n");
*/
}
/**
* The rendering process has finished.
* This should be called after the rendering has completed as there is
* no other indication it is complete.
* This will then write the results to the output stream.
* @throws IOException an io exception if there is a problem
* writing to the output stream
*/
public void finish() throws IOException {
//Finish page
gen.writeln("showpage");
gen.writeDSCComment(DSCConstants.PAGE_TRAILER);
gen.writeDSCComment(DSCConstants.END_PAGE);
//Finish document
gen.writeDSCComment(DSCConstants.TRAILER);
gen.writeDSCComment(DSCConstants.EOF);
gen.flush();
}
/**
* This constructor supports the create method
* @param g the PostScript document graphics to make a copy of
*/
public PSDocumentGraphics2D(PSDocumentGraphics2D g) {
super(g);
}
/**
* Creates a new <code>Graphics</code> object that is
* a copy of this <code>Graphics</code> object.
* @return a new graphics context that is a copy of
* this graphics context.
*/
public Graphics create() {
return new PSDocumentGraphics2D(this);
}
/**
* Draw a string to the PostScript document.
* This either draws the string directly or if drawing text as
* shapes it converts the string into shapes and draws that.
* @param s the string to draw
* @param x the x position
* @param y the y position
*/
public void drawString(String s, float x, float y) {
if (super.textAsShapes) {
Font font = super.getFont();
FontRenderContext frc = super.getFontRenderContext();
GlyphVector gv = font.createGlyphVector(frc, s);
Shape glyphOutline = gv.getOutline(x, y);
super.fill(glyphOutline);
} else {
super.drawString(s, x, y);
}
}
}
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