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Java > Open Source Codes > org > apache > fop > svg > PDFANode


1 /*
2  * $Id: PDFANode.java,v 1.5.2.2 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.batik.gvt.*;
54
55 import java.awt.Graphics2D JavaDoc;
56 import java.awt.Shape JavaDoc;
57 import java.awt.geom.AffineTransform JavaDoc;
58
59 import java.util.StringTokenizer JavaDoc;
60
61 /**
62  * A graphics node that represents an image described as a graphics node.
63  *
64  * @author <a HREF="mailto:keiron@aftexsw.com">Keiron Liddle</a>
65  */

66 public class PDFANode extends CompositeGraphicsNode {
67     String JavaDoc destination;
68     AffineTransform JavaDoc transform;
69
70     /**
71      * Constructs a new empty <tt>PDFANode</tt>.
72      */

73     public PDFANode() {}
74
75     /**
76      * Set the destination String.
77      */

78     public void setDestination(String JavaDoc dest) {
79         destination = dest;
80     }
81
82     public void setTransform(AffineTransform JavaDoc tf) {
83         transform = tf;
84     }
85
86     /**
87      * Paints this node if visible.
88      *
89      * @param g2d the Graphics2D to use
90      * @param rc the GraphicsNodeRenderContext to use
91      */

92     public void paint(Graphics2D JavaDoc g2d) {
93         if (isVisible) {
94             super.paint(g2d);
95             if(g2d instanceof PDFGraphics2D) {
96                 PDFGraphics2D pdfg = (PDFGraphics2D)g2d;
97                 int type = org.apache.fop.layout.LinkSet.EXTERNAL;
98                 Shape JavaDoc outline = getOutline();
99                 if(destination.startsWith("#svgView(viewBox(")) {
100                     type = org.apache.fop.layout.LinkSet.INTERNAL;
101                     String JavaDoc nums = destination.substring(18, destination.length() - 2);
102                     float x = 0;
103                     float y = 0;
104                     float width = 0;
105                     float height;
106                     int count = 0;
107                     try {
108                         StringTokenizer JavaDoc st = new StringTokenizer JavaDoc(nums, ",");
109                         while(st.hasMoreTokens()) {
110                             String JavaDoc tok = st.nextToken();
111                             count++;
112                             switch(count) {
113                             case 1:
114                                 x = Float.parseFloat(tok);
115                             break;
116                             case 2:
117                                 y = Float.parseFloat(tok);
118                             break;
119                             case 3:
120                                 width = Float.parseFloat(tok);
121                             break;
122                             case 4:
123                                 height = Float.parseFloat(tok);
124                             break;
125                             default:
126                             break;
127                             }
128                         }
129                     } catch(Exception JavaDoc e) {
130                     }
131                     // these numbers need conversion to current
132
// svg position and scaled for the page
133
destination = "" + x + " " + y + " " + 200 / width;
134                 }
135                 pdfg.addLink(outline, transform, destination, type);
136             }
137         }
138     }
139
140 }
141
142
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