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1
18 package org.apache.batik.svggen;
19
20 import java.awt.Color  ;
21 import java.awt.Dimension ;
22 import java.awt.GridLayout ;
23 import java.io.File ;
24 import java.io.FileOutputStream ;
25 import java.io.OutputStreamWriter ;
26
27 import javax.swing.JFrame ;
28 import javax.swing.JPanel ;
29
30 import org.w3c.dom.DOMImplementation ;
31 import org.w3c.dom.Document ;
32
33 import org.apache.batik.dom.svg.SVGDOMImplementation;
34 import org.apache.batik.swing.JSVGCanvas;
35 import org.apache.batik.swing.svg.SVGDocumentLoaderAdapter;
36 import org.apache.batik.swing.svg.SVGDocumentLoaderEvent;
37 import org.apache.batik.util.SVGConstants;
38
39
49 public class JPainterCompare extends JPanel implements SVGConstants{
50
53 public static final Dimension CANVAS_SIZE
54 = new Dimension (300, 400);
55
56 public static String MESSAGES_USAGE
57 = "JPainterCompare.messages.usage";
58
59 public static String MESSAGES_LOADING_CLASS
60 = "JPainterCompare.messages.loading.class";
61
62 public static String MESSAGES_LOADED_CLASS
63 = "JPainterCompare.messages.loaded.class";
64
65 public static String MESSAGES_INSTANCIATED_OBJECT
66 = "JPainterCompare.messages.instanciated.object";
67
68 public static String ERROR_COULD_NOT_LOAD_CLASS
69 = "JPainterCompare.error.could.not.load.class";
70
71 public static String ERROR_COULD_NOT_INSTANCIATE_OBJECT
72 = "JPainterCompare.error.could.not.instanciate.object";
73
74 public static String ERROR_CLASS_NOT_PAINTER
75 = "JPainterCompare.error.class.not.painter";
76
77 public static String ERROR_COULD_NOT_TRANSCODE_TO_SVG
78 = "JPainterCompare.error.could.not.transcode.to.svg";
79
80 public static String ERROR_COULD_NOT_CONVERT_FILE_PATH_TO_URL
81 = "JPainterCompare.error.could.not.convert.file.path.to.url";
82
83 public static String ERROR_COULD_NOT_RENDER_GENERATED_SVG
84 = "JPainterCompare.error.could.not.render.generated.svg";
85
86 public static String CONFIG_TMP_FILE_PREFIX
87 = "JPainterCompare.config.tmp.file.prefix";
88
89
93 protected SVGGraphics2D buildSVGGraphics2D() {
94 DOMImplementation impl = SVGDOMImplementation.getDOMImplementation();
95 String namespaceURI = SVGDOMImplementation.SVG_NAMESPACE_URI;
96 Document domFactory = impl.createDocument(namespaceURI, SVG_SVG_TAG, null);
97
98 SVGGeneratorContext ctx = SVGGeneratorContext.createDefault(domFactory);
100
101 GenericImageHandler ihandler = new CachedImageHandlerBase64Encoder();
102 ctx.setGenericImageHandler(ihandler);
103
104 return new SVGGraphics2D(ctx, false);
105 }
106
107 static class LoaderListener extends SVGDocumentLoaderAdapter{
108 public final String sem = "sem";
109 public boolean success = false;
110 public void documentLoadingFailed(SVGDocumentLoaderEvent e){
111 synchronized(sem){
112 sem.notifyAll();
113 }
114 }
115
116 public void documentLoadingCompleted(SVGDocumentLoaderEvent e){
117 success = true;
118 synchronized(sem){
119 sem.notifyAll();
120 }
121 }
122 }
123
124
127 public JPainterCompare(Painter painter){
128 JPainterComponent ref = new JPainterComponent(painter);
130
131 SVGGraphics2D g2d = buildSVGGraphics2D();
133
134 g2d.setSVGCanvasSize(CANVAS_SIZE);
135
136 File tmpFile = null;
140 try{
141 tmpFile = File.createTempFile(CONFIG_TMP_FILE_PREFIX,
142 ".svg");
143
144 OutputStreamWriter osw = new OutputStreamWriter (new FileOutputStream (tmpFile), "UTF-8");
145
146 painter.paint(g2d);
147 g2d.stream(osw);
148 osw.flush();
149 }catch(Exception e){
150 e.printStackTrace();
151 throw new IllegalArgumentException
152 (Messages.formatMessage(ERROR_COULD_NOT_TRANSCODE_TO_SVG,
153 new Object []{e.getClass().getName()}));
154 }
155
156 JSVGCanvas svgCanvas = new JSVGCanvas();
160 LoaderListener l = new LoaderListener();
161 svgCanvas.addSVGDocumentLoaderListener(l);
162
163 try{
164 svgCanvas.setURI(tmpFile.toURL().toString());
165 synchronized(l.sem){
166 l.sem.wait();
167 }
168 }catch(Exception e){
169 e.printStackTrace();
170 new Error
171 (Messages.formatMessage(ERROR_COULD_NOT_CONVERT_FILE_PATH_TO_URL,
172 new Object []{e.getMessage()}));
173 }
174
175 if(l.success){
176 setLayout(new GridLayout (1,2));
177 add(ref);
178 add(svgCanvas);
179 }
180
181 else{
182 throw new Error
183 (Messages.formatMessage(ERROR_COULD_NOT_RENDER_GENERATED_SVG,null));
184 }
185 }
186
187 public Dimension getPreferredSize(){
188 return new Dimension (CANVAS_SIZE.width*2, CANVAS_SIZE.height);
189 }
190
191
198 public static void main(String args[]){
199 if(args.length <= 0){
200 System.out.println(Messages.formatMessage
201 (MESSAGES_USAGE, null));
202 System.exit(0);
203 }
204
205 String className = args[0];
207 System.out.println
208 (Messages.formatMessage(MESSAGES_LOADING_CLASS,
209 new Object []{className}));
210
211 Class cl = null;
212
213 try{
214 cl = Class.forName(className);
215 System.out.println
216 (Messages.formatMessage(MESSAGES_LOADED_CLASS,
217 new Object []{className}));
218 }catch(Exception e){
219 System.out.println
220 (Messages.formatMessage(ERROR_COULD_NOT_LOAD_CLASS,
221 new Object [] {className,
222 e.getClass().getName() }));
223 System.exit(0);
224 }
225
226 Object o = null;
228
229 try{
230 o = cl.newInstance();
231 System.out.println
232 (Messages.formatMessage(MESSAGES_INSTANCIATED_OBJECT,
233 null));
234 }catch(Exception e){
235 System.out.println
236 (Messages.formatMessage(ERROR_COULD_NOT_INSTANCIATE_OBJECT,
237 new Object [] {className,
238 e.getClass().getName()}));
239 System.exit(0);
240 }
241
242 Painter p = null;
244
245 try{
246 p = (Painter)o;
247 }catch(ClassCastException e){
248 System.out.println
249 (Messages.formatMessage(ERROR_CLASS_NOT_PAINTER,
250 new Object []{className}));
251 System.exit(0);
252 }
253
254 JFrame f = new JFrame ();
256 JPainterCompare c = new JPainterCompare(p);
257 c.setBackground(Color.white);
258 c.setPreferredSize(new Dimension (300, 400));
259 f.getContentPane().add(c);
260 f.getContentPane().setBackground(Color.white);
261 f.pack();
262 f.setVisible(true);
263 }
264
265 }
266 |
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