PDFDocumentGraphics2D


1   /*
2    * $Id: PDFDocumentGraphics2D.java,v 1.11.2.2 2003/02/25 15:08:11 jeremias Exp $
3    * ============================================================================
4    *                    The Apache Software License, Version 1.1
5    * ============================================================================
6    * 
7    * Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
8    * 
9    * Redistribution and use in source and binary forms, with or without modifica-
10   * tion, are permitted provided that the following conditions are met:
11   * 
12   * 1. Redistributions of source code must retain the above copyright notice,
13   *    this list of conditions and the following disclaimer.
14   * 
15   * 2. Redistributions in binary form must reproduce the above copyright notice,
16   *    this list of conditions and the following disclaimer in the documentation
17   *    and/or other materials provided with the distribution.
18   * 
19   * 3. The end-user documentation included with the redistribution, if any, must
20   *    include the following acknowledgment: "This product includes software
21   *    developed by the Apache Software Foundation (http://www.apache.org/)."
22   *    Alternately, this acknowledgment may appear in the software itself, if
23   *    and wherever such third-party acknowledgments normally appear.
24   * 
25   * 4. The names "FOP" and "Apache Software Foundation" must not be used to
26   *    endorse or promote products derived from this software without prior
27   *    written permission. For written permission, please contact
28   *    apache@apache.org.
29   * 
30   * 5. Products derived from this software may not be called "Apache", nor may
31   *    "Apache" appear in their name, without prior written permission of the
32   *    Apache Software Foundation.
33   * 
34   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
35   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
36   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
37   * APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
38   * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
39   * DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
40   * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
41   * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
42   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
43   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
44   * ============================================================================
45   * 
46   * This software consists of voluntary contributions made by many individuals
47   * on behalf of the Apache Software Foundation and was originally created by
48   * James Tauber <jtauber@jtauber.com>. For more information on the Apache
49   * Software Foundation, please see <http://www.apache.org/>.
50   */ 
51  package org.apache.fop.svg;
52  
53  import org.apache.fop.pdf.*;
54  import org.apache.fop.render.pdf.FontSetup;
55  import org.apache.fop.layout.*;
56  import org.apache.fop.apps.FOPException;
57  
58  import java.awt.Graphics  ;
59  import java.awt.Font  ;
60  import java.awt.Color  ;
61  import java.awt.Shape  ;
62  import java.awt.font.FontRenderContext  ;
63  import java.awt.font.GlyphVector  ;
64  import java.io.OutputStream  ;
65  import java.io.IOException  ;
66  
67  import org.apache.batik.ext.awt.g2d.GraphicContext;
68  
69  /**
70   * This class is a wrapper for the <tt>PDFGraphics2D</tt> that
71   * is used to create a full document around the pdf rendering from
72   * <tt>PDFGraphics2D</tt>.
73   *
74   * @author <a HREF="mailto:keiron@aftexsw.com">Keiron Liddle</a>
75   * @version $Id: PDFDocumentGraphics2D.java,v 1.11.2.2 2003/02/25 15:08:11 jeremias Exp $
76   * @see org.apache.fop.svg.PDFGraphics2D
77   */
78  public class PDFDocumentGraphics2D extends PDFGraphics2D {
79      OutputStream   stream;
80  
81      PDFStream pdfStream;
82      int width;
83      int height;
84  
85      FontInfo fontInfo = null;
86  
87      /**
88       * Create a new PDFDocumentGraphics2D.
89       * This is used to create a new pdf document of the given height
90       * and width.
91       * The resulting document is written to the stream after rendering.
92       *
93       * @param textAsShapes set this to true so that text will be rendered
94       * using curves and not the font.
95       * @param stream the stream that the final document should be written to.
96       * @param width the width of the document
97       * @param height the height of the document
98       */
99      public PDFDocumentGraphics2D(boolean textAsShapes, OutputStream   stream,
100                                  int width, int height) throws FOPException {
101         super(textAsShapes);
102 
103         if (!textAsShapes) {
104             fontInfo = new FontInfo();
105             FontSetup.setup(fontInfo);
106             try {
107                 fontState = new FontState(fontInfo, "Helvetica", "normal",
108                                           "normal", 12, 0);
109             } catch (FOPException e) {}
110         }
111         standalone = true;
112         this.stream = stream;
113         this.pdfDoc = new PDFDocument();
114         this.pdfDoc.setProducer("FOP SVG Renderer");
115         pdfStream = this.pdfDoc.makeStream();
116         this.width = width;
117         this.height = height;
118 
119         currentFontName = "";
120         currentFontSize = 0;
121         currentYPosition = 0;
122         currentXPosition = 0;
123 
124         currentStream.write("1 0 0 -1 0 " + height + " cm\n");
125 
126     }
127 
128     public FontState getFontState() {
129         return fontState;
130     }
131 
132     public PDFDocument getPDFDocument() {
133         return this.pdfDoc;
134     }
135 
136     /**
137      * Set the dimensions of the svg document that will be drawn.
138      * This is useful if the dimensions of the svg document are different
139      * from the pdf document that is to be created.
140      * The result is scaled so that the svg fits correctly inside the pdf document.
141      */
142     public void setSVGDimension(float w, float h) {
143         currentStream.write("" + PDFNumber.doubleOut(width / w) + " 0 0 "
144                             + PDFNumber.doubleOut(height / h) + " 0 0 cm\n");
145     }
146 
147     /**
148      * Set the background of the pdf document.
149      * This is used to set the background for the pdf document
150      * Rather than leaving it as the default white.
151      */
152     public void setBackgroundColor(Color   col) {
153         Color   c = col;
154         currentColour = new PDFColor(c.getRed(), c.getGreen(), c.getBlue());
155         currentStream.write("q\n");
156         currentStream.write(currentColour.getColorSpaceOut(true));
157 
158         currentStream.write("0 0 " + width + " " + height + " re\n");
159 
160         currentStream.write("f\n");
161         currentStream.write("Q\n");
162     }
163 
164     /**
165      * The rendering process has finished.
166      * This should be called after the rendering has completed as there is
167      * no other indication it is complete.
168      * This will then write the results to the output stream.
169      */
170     public void finish() throws IOException   {
171         pdfStream.add(getString());
172         PDFResources pdfResources = this.pdfDoc.getResources();
173         PDFPage currentPage = this.pdfDoc.makePage(pdfResources, pdfStream,
174                                                    width, height, null);
175         if(currentAnnotList != null) {
176             currentPage.setAnnotList(currentAnnotList);
177         }
178         if (fontInfo != null) {
179             FontSetup.addToResources(this.pdfDoc, fontInfo);
180         }
181         pdfDoc.outputHeader(stream);
182         this.pdfDoc.output(stream);
183         pdfDoc.outputTrailer(stream);
184     }
185 
186     public void setGraphicContext(GraphicContext c) {
187         gc = c;
188     }
189 
190     /**
191      * This constructor supports the create method
192      */
193     public PDFDocumentGraphics2D(PDFDocumentGraphics2D g) {
194         super(g);
195     }
196 
197     /**
198      * Creates a new <code>Graphics</code> object that is
199      * a copy of this <code>Graphics</code> object.
200      * @return     a new graphics context that is a copy of
201      * this graphics context.
202      */
203     public Graphics   create() {
204         return new PDFDocumentGraphics2D(this);
205     }
206 
207     public void drawString(String   s, float x, float y) {
208         if (super.textAsShapes) {
209             Font   font = super.getFont();
210             FontRenderContext   frc = super.getFontRenderContext();
211             GlyphVector   gv = font.createGlyphVector(frc, s);
212             Shape   glyphOutline = gv.getOutline(x, y);
213             super.fill(glyphOutline);
214         } else {
215             super.drawString(s, x, y);
216         }
217     }
218 
219 }
220 
221
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