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-rw-r--r--src/org/apache/fop/render/ps/PSRenderer.java156
1 files changed, 63 insertions, 93 deletions
diff --git a/src/org/apache/fop/render/ps/PSRenderer.java b/src/org/apache/fop/render/ps/PSRenderer.java
index 3234bba2d..9a84a08c6 100644
--- a/src/org/apache/fop/render/ps/PSRenderer.java
+++ b/src/org/apache/fop/render/ps/PSRenderer.java
@@ -1,48 +1,24 @@
/*
* $Id$
- * Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
+ * Copyright (C) 2001-2003 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.render.ps;
-// FOP
-import org.apache.fop.render.AbstractRenderer;
-import org.apache.fop.render.Renderer;
-import org.apache.fop.image.FopImage;
-import org.apache.fop.layout.*;
-import org.apache.fop.datatypes.*;
-import org.apache.fop.fo.properties.*;
-import org.apache.fop.render.pdf.Font;
-import org.apache.fop.image.*;
-
-import org.apache.batik.bridge.*;
-import org.apache.batik.swing.svg.*;
-import org.apache.batik.swing.gvt.*;
-import org.apache.batik.gvt.*;
-import org.apache.batik.gvt.renderer.*;
-import org.apache.batik.gvt.filter.*;
-import org.apache.batik.gvt.event.*;
-
-// SVG
-import org.w3c.dom.svg.SVGSVGElement;
-import org.w3c.dom.svg.SVGDocument;
-import org.w3c.dom.*;
-import org.w3c.dom.svg.*;
-
// Java
-import java.io.*;
-import java.util.*;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Iterator;
-import java.util.HashMap;
-import java.awt.geom.AffineTransform;
-import java.awt.geom.Dimension2D;
-import java.awt.Point;
-import java.awt.RenderingHints;
-import java.awt.Dimension;
+import java.util.Map;
+
+// FOP
+import org.apache.fop.datatypes.ColorType;
+import org.apache.fop.fonts.Font;
+import org.apache.fop.layout.FontInfo;
+import org.apache.fop.render.AbstractRenderer;
+
/**
* Renderer that renders to PostScript.
@@ -51,24 +27,12 @@ import java.awt.Dimension;
* is the FlateEncode filter which is a Level 3 feature. The filters in use
* are hardcoded at the moment.
* <br>
- * This class follows the Document Structuring Conventions (DSC) version 3.0
- * (If I did everything right). If anyone modifies this renderer please make
+ * This class follows the Document Structuring Conventions (DSC) version 3.0.
+ * If anyone modifies this renderer please make
* sure to also follow the DSC to make it simpler to programmatically modify
* the generated Postscript files (ex. extract pages etc.).
* <br>
- * TODO: Character size/spacing, SVG Transcoder for Batik, configuration, move
- * to PrintRenderer, maybe improve filters (I'm not very proud of them), add a
- * RunLengthEncode filter (useful for Level 2 Postscript), Improve
- * DocumentProcessColors stuff (probably needs to be configurable, then maybe
- * add a color to grayscale conversion for bitmaps to make output smaller (See
- * PCLRenderer), font embedding, support different character encodings, try to
- * implement image transparency, positioning of images is wrong etc. <P>
- *
- * Modified by Mark Lillywhite mark-fop@inomial.com, to use the new
- * Renderer interface. This PostScript renderer appears to be the
- * most efficient at producing output.
- *
- * @author Jeremias Märki
+ * @todo Rebuild the PostScript renderer
*/
public class PSRenderer extends AbstractRenderer {
@@ -77,8 +41,6 @@ public class PSRenderer extends AbstractRenderer {
*/
protected String producer;
- int imagecount = 0; // DEBUG
-
private boolean enableComments = true;
/**
@@ -98,7 +60,7 @@ public class PSRenderer extends AbstractRenderer {
private FontInfo fontInfo;
/**
- * set the document's producer
+ * Set the document's producer
*
* @param producer string indicating application producing the PostScript
*/
@@ -107,26 +69,34 @@ public class PSRenderer extends AbstractRenderer {
}
/**
- * write out a command
+ * Write out a command
+ * @param cmd PostScript command
*/
protected void write(String cmd) {
try {
out.write(cmd);
} catch (IOException e) {
- if (!ioTrouble)
+ if (!ioTrouble) {
e.printStackTrace();
+ }
ioTrouble = true;
}
}
/**
- * write out a comment
+ * Write out a comment
+ * @param comment Comment to write
*/
protected void comment(String comment) {
- if (this.enableComments)
+ if (this.enableComments) {
write(comment);
+ }
}
+ /**
+ * Generates the PostScript code for the font dictionary.
+ * @param fontInfo available fonts
+ */
protected void writeFontDict(FontInfo fontInfo) {
write("%%BeginResource: procset FOPFonts");
write("%%Title: Font setup (shortcuts) for this file");
@@ -186,7 +156,8 @@ public class PSRenderer extends AbstractRenderer {
write(" /FontMatrix get 0 get /Ts exch def /FontInfo get dup");
write(" /UnderlinePosition get Ts mul /To exch def");
write(" /UnderlineThickness get Ts mul /Tt exch def");
- write(" ux uy To add cs 10 mul 26 idiv add moveto Tcx uy To add cs 10 mul 26 idiv add lineto");
+ write(" ux uy To add cs 10 mul 26 idiv add moveto "
+ + "Tcx uy To add cs 10 mul 26 idiv add lineto");
write(" Tt setlinewidth stroke");
write(" grestore");
write("} bd");
@@ -195,12 +166,12 @@ public class PSRenderer extends AbstractRenderer {
// write("/gfF1{/Helvetica findfont} bd");
// write("/gfF3{/Helvetica-Bold findfont} bd");
- HashMap fonts = fontInfo.getFonts();
+ Map fonts = fontInfo.getFonts();
Iterator enum = fonts.keySet().iterator();
while (enum.hasNext()) {
String key = (String)enum.next();
Font fm = (Font)fonts.get(key);
- write("/" + key + " /" + fm.fontName() + " def");
+ write("/" + key + " /" + fm.getFontName() + " def");
}
write("end def");
write("%%EndResource");
@@ -208,22 +179,25 @@ public class PSRenderer extends AbstractRenderer {
while (enum.hasNext()) {
String key = (String)enum.next();
Font fm = (Font)fonts.get(key);
- write("/" + fm.fontName() + " findfont");
+ write("/" + fm.getFontName() + " findfont");
write("dup length dict begin");
write(" {1 index /FID ne {def} {pop pop} ifelse} forall");
write(" /Encoding ISOLatin1Encoding def");
write(" currentdict");
write("end");
- write("/" + fm.fontName() + " exch definefont pop");
+ write("/" + fm.getFontName() + " exch definefont pop");
}
}
+ /**
+ * Make sure the cursor is in the right place.
+ */
protected void movetoCurrPosition() {
write(this.currentIPPosition + " " + this.currentBPPosition + " M");
}
/**
- * set up the font info
+ * Set up the font info
*
* @param fontInfo the font info object to set up
*/
@@ -233,37 +207,32 @@ public class PSRenderer extends AbstractRenderer {
this.fontInfo = fontInfo;
}
+ /**
+ * Draws a filled rectangle.
+ * @param x x-coordinate
+ * @param y y-coordinate
+ * @param w width
+ * @param h height
+ * @param col color to fill with
+ */
protected void addFilledRect(int x, int y, int w, int h,
ColorType col) {
- write("newpath");
- write(x + " " + y + " M");
- write(w + " 0 rlineto");
- write("0 " + (-h) + " rlineto");
- write((-w) + " 0 rlineto");
- write("0 " + h + " rlineto");
- write("closepath");
- useColor(col);
- write("fill");
- }
-
- private long copyStream(InputStream in, OutputStream out,
- int bufferSize) throws IOException {
- long bytes_total = 0;
- byte[] buf = new byte[bufferSize];
- int bytes_read;
- while ((bytes_read = in.read(buf)) != -1) {
- bytes_total += bytes_read;
- out.write(buf, 0, bytes_read);
- }
- return bytes_total;
- }
-
-
- private long copyStream(InputStream in,
- OutputStream out) throws IOException {
- return copyStream(in, out, 4096);
+ write("newpath");
+ write(x + " " + y + " M");
+ write(w + " 0 rlineto");
+ write("0 " + (-h) + " rlineto");
+ write((-w) + " 0 rlineto");
+ write("0 " + h + " rlineto");
+ write("closepath");
+ useColor(col);
+ write("fill");
}
+ /**
+ * Changes the currently used font.
+ * @param name name of the font
+ * @param size font size
+ */
public void useFont(String name, int size) {
if ((currentFontName != name) || (currentFontSize != size)) {
write(name + " " + size + " F");
@@ -286,14 +255,15 @@ public class PSRenderer extends AbstractRenderer {
}
/**
- */
+ * @see org.apache.fop.render.Renderer#startRenderer(OutputStream)
+ */
public void startRenderer(OutputStream outputStream)
throws IOException {
getLogger().debug("rendering areas to PostScript");
this.out = new PSStream(outputStream);
write("%!PS-Adobe-3.0");
- write("%%Creator: "+this.producer);
+ write("%%Creator: " + this.producer);
write("%%DocumentProcessColors: Black");
write("%%DocumentSuppliedResources: procset FOPFonts");
write("%%EndComments");
@@ -337,9 +307,9 @@ public class PSRenderer extends AbstractRenderer {
}
/**
- */
- public void stopRenderer()
- throws IOException {
+ * @see org.apache.fop.render.Renderer#stopRenderer()
+ */
+ public void stopRenderer() throws IOException {
write("%%Trailer");
write("%%EOF");
this.out.flush();
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-06 08:40:50 +0000