source: josm/trunk/src/com/kitfox/svg/ImageSVG.java@ 8149

Last change on this file since 8149 was 8084, checked in by bastiK, 9 years ago

add svn:eol-style=native for svgsalamander
  • Property svn:eol-style set to native
File size: 10.6 KB
Line 
1/*
2 * SVG Salamander
3 * Copyright (c) 2004, Mark McKay
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or
7 * without modification, are permitted provided that the following
8 * conditions are met:
9 *
10 * - Redistributions of source code must retain the above
11 * copyright notice, this list of conditions and the following
12 * disclaimer.
13 * - Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials
16 * provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
23 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
27 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
29 * OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 * Mark McKay can be contacted at mark@kitfox.com. Salamander and other
32 * projects can be found at http://www.kitfox.com
33 *
34 * Created on February 20, 2004, 10:00 PM
35 */
36package com.kitfox.svg;
37
38import com.kitfox.svg.app.data.Handler;
39import com.kitfox.svg.xml.StyleAttribute;
40import java.awt.AlphaComposite;
41import java.awt.Composite;
42import java.awt.Graphics2D;
43import java.awt.geom.AffineTransform;
44import java.awt.geom.Point2D;
45import java.awt.geom.Rectangle2D;
46import java.awt.image.BufferedImage;
47import java.net.URI;
48import java.net.URL;
49import java.util.List;
50import java.util.logging.Level;
51import java.util.logging.Logger;
52
53/**
54 * Implements an image.
55 *
56 * @author Mark McKay
57 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
58 */
59public class ImageSVG extends RenderableElement
60{
61 public static final String TAG_NAME = "image";
62
63 float x = 0f;
64 float y = 0f;
65 float width = 0f;
66 float height = 0f;
67// BufferedImage href = null;
68 URL imageSrc = null;
69 AffineTransform xform;
70 Rectangle2D bounds;
71
72 /**
73 * Creates a new instance of Font
74 */
75 public ImageSVG()
76 {
77 }
78
79 public String getTagName()
80 {
81 return TAG_NAME;
82 }
83
84 protected void build() throws SVGException
85 {
86 super.build();
87
88 StyleAttribute sty = new StyleAttribute();
89
90 if (getPres(sty.setName("x")))
91 {
92 x = sty.getFloatValueWithUnits();
93 }
94
95 if (getPres(sty.setName("y")))
96 {
97 y = sty.getFloatValueWithUnits();
98 }
99
100 if (getPres(sty.setName("width")))
101 {
102 width = sty.getFloatValueWithUnits();
103 }
104
105 if (getPres(sty.setName("height")))
106 {
107 height = sty.getFloatValueWithUnits();
108 }
109
110 try
111 {
112 if (getPres(sty.setName("xlink:href")))
113 {
114 URI src = sty.getURIValue(getXMLBase());
115 if ("data".equals(src.getScheme()))
116 {
117 imageSrc = new URL(null, src.toASCIIString(), new Handler());
118 } else
119 {
120 try
121 {
122 imageSrc = src.toURL();
123 } catch (Exception e)
124 {
125 Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
126 "Could not parse xlink:href " + src, e);
127// e.printStackTrace();
128 imageSrc = null;
129 }
130 }
131 }
132 } catch (Exception e)
133 {
134 throw new SVGException(e);
135 }
136
137 diagram.getUniverse().registerImage(imageSrc);
138
139 //Set widths if not set
140 BufferedImage img = diagram.getUniverse().getImage(imageSrc);
141 if (img == null)
142 {
143 xform = new AffineTransform();
144 bounds = new Rectangle2D.Float();
145 return;
146 }
147
148 if (width == 0)
149 {
150 width = img.getWidth();
151 }
152 if (height == 0)
153 {
154 height = img.getHeight();
155 }
156
157 //Determine image xform
158 xform = new AffineTransform();
159// xform.setToScale(this.width / img.getWidth(), this.height / img.getHeight());
160// xform.translate(this.x, this.y);
161 xform.translate(this.x, this.y);
162 xform.scale(this.width / img.getWidth(), this.height / img.getHeight());
163
164 bounds = new Rectangle2D.Float(this.x, this.y, this.width, this.height);
165 }
166
167 public float getX()
168 {
169 return x;
170 }
171
172 public float getY()
173 {
174 return y;
175 }
176
177 public float getWidth()
178 {
179 return width;
180 }
181
182 public float getHeight()
183 {
184 return height;
185 }
186
187 void pick(Point2D point, boolean boundingBox, List retVec) throws SVGException
188 {
189 if (getBoundingBox().contains(point))
190 {
191 retVec.add(getPath(null));
192 }
193 }
194
195 void pick(Rectangle2D pickArea, AffineTransform ltw, boolean boundingBox, List retVec) throws SVGException
196 {
197 if (ltw.createTransformedShape(getBoundingBox()).intersects(pickArea))
198 {
199 retVec.add(getPath(null));
200 }
201 }
202
203 public void render(Graphics2D g) throws SVGException
204 {
205 StyleAttribute styleAttrib = new StyleAttribute();
206 if (getStyle(styleAttrib.setName("visibility")))
207 {
208 if (!styleAttrib.getStringValue().equals("visible"))
209 {
210 return;
211 }
212 }
213
214 if (getStyle(styleAttrib.setName("display")))
215 {
216 if (styleAttrib.getStringValue().equals("none"))
217 {
218 return;
219 }
220 }
221
222 beginLayer(g);
223
224 float opacity = 1f;
225 if (getStyle(styleAttrib.setName("opacity")))
226 {
227 opacity = styleAttrib.getRatioValue();
228 }
229
230 if (opacity <= 0)
231 {
232 return;
233 }
234
235 Composite oldComp = null;
236
237 if (opacity < 1)
238 {
239 oldComp = g.getComposite();
240 Composite comp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, opacity);
241 g.setComposite(comp);
242 }
243
244 BufferedImage img = diagram.getUniverse().getImage(imageSrc);
245 if (img == null)
246 {
247 return;
248 }
249
250 AffineTransform curXform = g.getTransform();
251 g.transform(xform);
252
253 g.drawImage(img, 0, 0, null);
254
255 g.setTransform(curXform);
256 if (oldComp != null)
257 {
258 g.setComposite(oldComp);
259 }
260
261 finishLayer(g);
262 }
263
264 public Rectangle2D getBoundingBox()
265 {
266 return boundsToParent(bounds);
267 }
268
269 /**
270 * Updates all attributes in this diagram associated with a time event. Ie,
271 * all attributes with track information.
272 *
273 * @return - true if this node has changed state as a result of the time
274 * update
275 */
276 public boolean updateTime(double curTime) throws SVGException
277 {
278// if (trackManager.getNumTracks() == 0) return false;
279 boolean changeState = super.updateTime(curTime);
280
281 //Get current values for parameters
282 StyleAttribute sty = new StyleAttribute();
283 boolean shapeChange = false;
284
285 if (getPres(sty.setName("x")))
286 {
287 float newVal = sty.getFloatValueWithUnits();
288 if (newVal != x)
289 {
290 x = newVal;
291 shapeChange = true;
292 }
293 }
294
295 if (getPres(sty.setName("y")))
296 {
297 float newVal = sty.getFloatValueWithUnits();
298 if (newVal != y)
299 {
300 y = newVal;
301 shapeChange = true;
302 }
303 }
304
305 if (getPres(sty.setName("width")))
306 {
307 float newVal = sty.getFloatValueWithUnits();
308 if (newVal != width)
309 {
310 width = newVal;
311 shapeChange = true;
312 }
313 }
314
315 if (getPres(sty.setName("height")))
316 {
317 float newVal = sty.getFloatValueWithUnits();
318 if (newVal != height)
319 {
320 height = newVal;
321 shapeChange = true;
322 }
323 }
324
325 try
326 {
327 if (getPres(sty.setName("xlink:href")))
328 {
329 URI src = sty.getURIValue(getXMLBase());
330
331 URL newVal;
332 if ("data".equals(src.getScheme()))
333 {
334 newVal = new URL(null, src.toASCIIString(), new Handler());
335 } else
336 {
337 newVal = src.toURL();
338 }
339
340 if (!newVal.equals(imageSrc))
341 {
342 imageSrc = newVal;
343 shapeChange = true;
344 }
345 }
346 } catch (IllegalArgumentException ie)
347 {
348 Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
349 "Image provided with illegal value for href: \""
350 + sty.getStringValue() + '"', ie);
351 } catch (Exception e)
352 {
353 Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
354 "Could not parse xlink:href", e);
355 }
356
357
358 if (shapeChange)
359 {
360 build();
361// diagram.getUniverse().registerImage(imageSrc);
362//
363// //Set widths if not set
364// BufferedImage img = diagram.getUniverse().getImage(imageSrc);
365// if (img == null)
366// {
367// xform = new AffineTransform();
368// bounds = new Rectangle2D.Float();
369// }
370// else
371// {
372// if (width == 0) width = img.getWidth();
373// if (height == 0) height = img.getHeight();
374//
375// //Determine image xform
376// xform = new AffineTransform();
377//// xform.setToScale(this.width / img.getWidth(), this.height / img.getHeight());
378//// xform.translate(this.x, this.y);
379// xform.translate(this.x, this.y);
380// xform.scale(this.width / img.getWidth(), this.height / img.getHeight());
381//
382// bounds = new Rectangle2D.Float(this.x, this.y, this.width, this.height);
383// }
384//
385// return true;
386 }
387
388 return changeState || shapeChange;
389 }
390}
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