root / tags / v2_0_0_Build_2057 / libraries / org.gvsig.symbology / org.gvsig.symbology.lib / org.gvsig.symbology.lib.impl / src / main / java / org / gvsig / symbology / fmap / mapcontext / rendering / symbol / style / SVGStyle.java @ 39193
History | View | Annotate | Download (9.41 KB)
1 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
---|---|
2 |
*
|
3 |
* Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
|
4 |
*
|
5 |
* This program is free software; you can redistribute it and/or
|
6 |
* modify it under the terms of the GNU General Public License
|
7 |
* as published by the Free Software Foundation; either version 2
|
8 |
* of the License, or (at your option) any later version.
|
9 |
*
|
10 |
* This program is distributed in the hope that it will be useful,
|
11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
13 |
* GNU General Public License for more details.
|
14 |
*
|
15 |
* You should have received a copy of the GNU General Public License
|
16 |
* along with this program; if not, write to the Free Software
|
17 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
18 |
*
|
19 |
* For more information, contact:
|
20 |
*
|
21 |
* Generalitat Valenciana
|
22 |
* Conselleria d'Infraestructures i Transport
|
23 |
* Av. Blasco Ib??ez, 50
|
24 |
* 46010 VALENCIA
|
25 |
* SPAIN
|
26 |
*
|
27 |
* +34 963862235
|
28 |
* gvsig@gva.es
|
29 |
* www.gvsig.gva.es
|
30 |
*
|
31 |
* or
|
32 |
*
|
33 |
* IVER T.I. S.A
|
34 |
* Salamanca 50
|
35 |
* 46005 Valencia
|
36 |
* Spain
|
37 |
*
|
38 |
* +34 963163400
|
39 |
* dac@iver.es
|
40 |
*/
|
41 |
package org.gvsig.symbology.fmap.mapcontext.rendering.symbol.style; |
42 |
|
43 |
import java.awt.Graphics2D; |
44 |
import java.awt.Rectangle; |
45 |
import java.awt.RenderingHints; |
46 |
import java.awt.geom.AffineTransform; |
47 |
import java.awt.geom.Rectangle2D; |
48 |
import java.io.IOException; |
49 |
import java.net.URISyntaxException; |
50 |
import java.net.URL; |
51 |
|
52 |
import org.apache.batik.bridge.BridgeContext; |
53 |
import org.apache.batik.bridge.DocumentLoader; |
54 |
import org.apache.batik.bridge.GVTBuilder; |
55 |
import org.apache.batik.bridge.UserAgentAdapter; |
56 |
import org.apache.batik.bridge.ViewBox; |
57 |
import org.apache.batik.dom.svg.SVGOMDocument; |
58 |
import org.apache.batik.gvt.GraphicsNode; |
59 |
import org.apache.batik.gvt.renderer.StaticRenderer; |
60 |
import org.w3c.dom.Document; |
61 |
import org.w3c.dom.Element; |
62 |
|
63 |
import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol; |
64 |
import org.gvsig.fmap.mapcontext.rendering.symbols.SymbolDrawingException; |
65 |
import org.gvsig.tools.ToolsLocator; |
66 |
import org.gvsig.tools.dynobject.DynStruct; |
67 |
import org.gvsig.tools.persistence.PersistenceManager; |
68 |
import org.gvsig.tools.persistence.PersistentState; |
69 |
import org.gvsig.tools.persistence.exception.PersistenceException; |
70 |
import org.gvsig.tools.util.Callable; |
71 |
|
72 |
/**
|
73 |
* Style for a SVG files.This is a XML specification and file format for
|
74 |
* describing two-dimensional vector graphics, both static and animated.
|
75 |
* SVG can be purely declarative or may include scripting. Images can contain
|
76 |
* hyperlinks using outbound simple XLinks.It is an open standard created
|
77 |
* by the World Wide Web Consortium..
|
78 |
*
|
79 |
* @author jaume dominguez faus - jaume.dominguez@iver.es
|
80 |
*
|
81 |
*/
|
82 |
public class SVGStyle extends BackgroundFileStyle { |
83 |
|
84 |
public static final String SVG_STYLE_PERSISTENCE_DEFINITION_NAME = |
85 |
"SVGStyle";
|
86 |
private static final String SOURCE = "source"; |
87 |
private GVTBuilder gvtBuilder = new GVTBuilder(); |
88 |
private UserAgentAdapter userAgent;
|
89 |
private DocumentLoader loader;
|
90 |
private StaticRenderer renderer = new StaticRenderer(); |
91 |
private GraphicsNode gvtRoot;
|
92 |
private BridgeContext ctx;
|
93 |
private Element elt; |
94 |
|
95 |
protected static RenderingHints defaultRenderingHints; |
96 |
static {
|
97 |
defaultRenderingHints = new RenderingHints(null); |
98 |
defaultRenderingHints.put(RenderingHints.KEY_ANTIALIASING,
|
99 |
RenderingHints.VALUE_ANTIALIAS_ON);
|
100 |
|
101 |
defaultRenderingHints.put(RenderingHints.KEY_INTERPOLATION,
|
102 |
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
|
103 |
} |
104 |
|
105 |
/**
|
106 |
* Constructor method
|
107 |
*
|
108 |
*/
|
109 |
public SVGStyle() {
|
110 |
userAgent = new UserAgentAdapter();
|
111 |
loader = new DocumentLoader(userAgent);
|
112 |
ctx = new BridgeContext(userAgent, loader);
|
113 |
renderer.setDoubleBuffered(true);
|
114 |
} |
115 |
|
116 |
public void drawInsideRectangle(Graphics2D g, |
117 |
Rectangle rect,
|
118 |
boolean keepAspectRatio) throws SymbolDrawingException { |
119 |
if (keepAspectRatio) {
|
120 |
AffineTransform ataux;
|
121 |
if (elt.hasAttribute("viewBox")) { |
122 |
|
123 |
try {
|
124 |
ataux = |
125 |
ViewBox.getViewTransform(null,
|
126 |
elt, |
127 |
(float) rect.getWidth(),
|
128 |
(float) rect.getHeight(),
|
129 |
ctx); |
130 |
} catch (NullPointerException e) { |
131 |
throw new SymbolDrawingException(SymbolDrawingException.UNSUPPORTED_SET_OF_SETTINGS); |
132 |
} |
133 |
} else {
|
134 |
Rectangle2D bounds = gvtRoot.getBounds();
|
135 |
|
136 |
ataux = getNoRotationTransform( |
137 |
bounds, |
138 |
new Rectangle2D.Double( |
139 |
rect.x, |
140 |
rect.y, |
141 |
rect.width, |
142 |
rect.height), |
143 |
true);
|
144 |
} |
145 |
RenderingHints renderingHints = new RenderingHints(null); |
146 |
renderingHints.putAll(defaultRenderingHints); |
147 |
g.setRenderingHints(renderingHints); |
148 |
gvtRoot.setTransform(ataux); |
149 |
gvtRoot.paint(g); |
150 |
|
151 |
} else {
|
152 |
|
153 |
Rectangle2D bounds = gvtRoot.getBounds();
|
154 |
AffineTransform ataux = getNoRotationTransform(
|
155 |
bounds, |
156 |
new Rectangle2D.Double(rect.x, rect.y, rect.width, rect.height), |
157 |
false);
|
158 |
|
159 |
RenderingHints renderingHints = new RenderingHints(null); |
160 |
renderingHints.putAll(defaultRenderingHints); |
161 |
g.setRenderingHints(renderingHints); |
162 |
gvtRoot.setTransform(ataux); |
163 |
gvtRoot.paint(g); |
164 |
} |
165 |
} |
166 |
|
167 |
public boolean isSuitableFor(ISymbol symbol) { |
168 |
return true; |
169 |
} |
170 |
|
171 |
public void setSource(URL url) throws IOException { |
172 |
|
173 |
source = url; |
174 |
Document svgDoc;
|
175 |
try {
|
176 |
svgDoc = loader.loadDocument(url.toURI().toString()); |
177 |
} catch (URISyntaxException e) { |
178 |
IOException ioex = new IOException(); |
179 |
ioex.initCause(e); |
180 |
throw ioex;
|
181 |
} |
182 |
gvtRoot = gvtBuilder.build(ctx, svgDoc); |
183 |
renderer.setTree(gvtRoot); |
184 |
elt = ((SVGOMDocument) svgDoc).getRootElement(); |
185 |
} |
186 |
|
187 |
public Rectangle getBounds() { |
188 |
try {
|
189 |
Rectangle2D r = gvtRoot.getBounds();
|
190 |
return new Rectangle((int) r.getX(), |
191 |
(int) r.getY(),
|
192 |
(int) r.getWidth(),
|
193 |
(int) r.getHeight());
|
194 |
} catch (Exception e) { |
195 |
return new Rectangle(); |
196 |
} |
197 |
} |
198 |
|
199 |
public void drawOutline(Graphics2D g, Rectangle r) throws SymbolDrawingException { |
200 |
drawInsideRectangle(g, r); |
201 |
} |
202 |
|
203 |
|
204 |
public void loadFromState(PersistentState state) throws PersistenceException { |
205 |
try {
|
206 |
String sourceSymbolInLibrary = state.getString(SOURCE_SYMBOL_IN_LIBRARY);
|
207 |
if (sourceSymbolInLibrary != null){ |
208 |
setSource(new URL(getSymbolLibraryURL().toString()+sourceSymbolInLibrary)); |
209 |
} else {
|
210 |
setSource(state.getURL(SOURCE)); |
211 |
} |
212 |
} catch (Exception e) { |
213 |
throw new PersistenceCantSetSourceException(e); |
214 |
} |
215 |
} |
216 |
|
217 |
public void saveToState(PersistentState state) throws PersistenceException { |
218 |
if (isLibrarySymbol()){
|
219 |
state.set(SOURCE_SYMBOL_IN_LIBRARY, getSourceSymbolInLibrary()); |
220 |
} else {
|
221 |
state.setNull(SOURCE_SYMBOL_IN_LIBRARY); |
222 |
} |
223 |
state.set(SOURCE, source); |
224 |
} |
225 |
|
226 |
public static class RegisterPersistence implements Callable { |
227 |
|
228 |
public Object call() throws Exception { |
229 |
PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
230 |
if (manager.getDefinition(SVG_STYLE_PERSISTENCE_DEFINITION_NAME) == null) { |
231 |
DynStruct definition = |
232 |
manager.addDefinition(SVGStyle.class, |
233 |
SVG_STYLE_PERSISTENCE_DEFINITION_NAME, |
234 |
SVG_STYLE_PERSISTENCE_DEFINITION_NAME |
235 |
+ " Persistence definition",
|
236 |
null,
|
237 |
null);
|
238 |
|
239 |
// Extend the Style base definition
|
240 |
definition.extend(manager.getDefinition(BACKGROUND_FILE_STYLE_PERSISTENCE_DEFINITION_NAME)); |
241 |
|
242 |
definition.addDynFieldURL(SOURCE).setMandatory(true);
|
243 |
definition.addDynFieldString(SOURCE_SYMBOL_IN_LIBRARY).setMandatory(false);
|
244 |
} |
245 |
return Boolean.TRUE; |
246 |
} |
247 |
|
248 |
} |
249 |
|
250 |
|
251 |
private AffineTransform getNoRotationTransform( |
252 |
Rectangle2D from_rect,
|
253 |
Rectangle2D to_rect,
|
254 |
boolean keep_aspect) {
|
255 |
|
256 |
double scalex = to_rect.getWidth() / from_rect.getWidth();
|
257 |
double scaley = to_rect.getHeight() / from_rect.getHeight();
|
258 |
|
259 |
if (keep_aspect) {
|
260 |
// force min value for both
|
261 |
scalex = Math.min(scalex, scaley);
|
262 |
scaley = scalex; |
263 |
} |
264 |
|
265 |
double from_new_center_x = scalex * from_rect.getCenterX();
|
266 |
double from_new_center_y = scaley * from_rect.getCenterY();
|
267 |
|
268 |
double offx = to_rect.getCenterX() - from_new_center_x;
|
269 |
double offy = to_rect.getCenterY() - from_new_center_y;
|
270 |
|
271 |
AffineTransform resp =
|
272 |
AffineTransform.getTranslateInstance(offx, offy);
|
273 |
|
274 |
// this composition is equivalent to:
|
275 |
// first scale, then move
|
276 |
resp.concatenate( |
277 |
AffineTransform.getScaleInstance(scalex, scaley));
|
278 |
return resp;
|
279 |
} |
280 |
} |