root / branches / v2_0_0_prep / libraries / libFMap_mapcontext / src / org / gvsig / fmap / mapcontext / impl / DefaultMapContextDrawer.java @ 38210
History | View | Annotate | Download (20.4 KB)
1 |
package org.gvsig.fmap.mapcontext.impl; |
---|---|
2 |
|
3 |
import java.awt.Graphics2D; |
4 |
import java.awt.image.BufferedImage; |
5 |
import java.util.ArrayList; |
6 |
import java.util.Iterator; |
7 |
import java.util.List; |
8 |
import java.util.NoSuchElementException; |
9 |
|
10 |
import org.gvsig.compat.CompatLocator; |
11 |
import org.gvsig.compat.print.PrintAttributes; |
12 |
import org.gvsig.fmap.dal.exception.ReadException; |
13 |
import org.gvsig.fmap.mapcontext.MapContext; |
14 |
import org.gvsig.fmap.mapcontext.MapContextDrawer; |
15 |
import org.gvsig.fmap.mapcontext.ViewPort; |
16 |
import org.gvsig.fmap.mapcontext.layers.FLayer; |
17 |
import org.gvsig.fmap.mapcontext.layers.FLayers; |
18 |
import org.gvsig.fmap.mapcontext.layers.LayerDrawEvent; |
19 |
import org.gvsig.fmap.mapcontext.layers.LayersIterator; |
20 |
import org.gvsig.fmap.mapcontext.layers.operations.ComposedLayer; |
21 |
import org.gvsig.fmap.mapcontext.layers.operations.LayerCollection; |
22 |
import org.gvsig.fmap.mapcontext.layers.vectorial.GraphicLayer; |
23 |
import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelable; |
24 |
import org.gvsig.tools.task.Cancellable; |
25 |
import org.slf4j.Logger; |
26 |
import org.slf4j.LoggerFactory; |
27 |
|
28 |
public class DefaultMapContextDrawer implements MapContextDrawer { |
29 |
|
30 |
private static final Logger LOG = LoggerFactory |
31 |
.getLogger(DefaultMapContextDrawer.class); |
32 |
|
33 |
private MapContext mapContext = null; |
34 |
private ViewPort viewPort = null; |
35 |
private CachedImage cachedImage = null; |
36 |
private DrawList previousDrawList = null; |
37 |
|
38 |
protected void checkInitialized() { |
39 |
if (mapContext == null || viewPort == null) { |
40 |
throw new IllegalStateException( |
41 |
"MapContext and ViewPort must be set");
|
42 |
} |
43 |
} |
44 |
|
45 |
public void draw(FLayers root, BufferedImage image, Graphics2D g, |
46 |
Cancellable cancel, double scale) throws ReadException { |
47 |
|
48 |
this.checkInitialized();
|
49 |
|
50 |
// With viewport changes all layers must be redrawn, discard cache
|
51 |
if (cachedImage != null && cachedImage.hasChangedViewPortDrawVersion()) { |
52 |
cachedImage = null;
|
53 |
} |
54 |
|
55 |
if (isValidFullCachedImage()) {
|
56 |
g.drawImage(cachedImage.getFullDrawnImage(), 0, 0, null); |
57 |
LOG.debug("Drawn full image from the cache, all layers cached");
|
58 |
return;
|
59 |
} |
60 |
|
61 |
DrawList drawList = this.createDrawList(root, cancel, scale);
|
62 |
if (drawList == null || drawList.size() == 0) { |
63 |
return;
|
64 |
} |
65 |
|
66 |
if (cancel.isCanceled()) {
|
67 |
cachedImage = null;
|
68 |
return;
|
69 |
} |
70 |
|
71 |
int firstLayerToDraw;
|
72 |
int lastLayerToDraw;
|
73 |
if (isValidPartialCachedImage(drawList)) {
|
74 |
firstLayerToDraw = 0;
|
75 |
lastLayerToDraw = cachedImage.getLastDrawnLayerPosition(); |
76 |
g.drawImage(cachedImage.getPartialDrawnImage(), 0, 0, null); |
77 |
cachedImage.updateVersions(mapContext, viewPort); |
78 |
LOG.debug("Reused image of cached layers from 0 to {}",
|
79 |
new Integer(lastLayerToDraw)); |
80 |
} else {
|
81 |
if (cachedImage == null) { |
82 |
cachedImage = new CachedImage();
|
83 |
// Draw all layers
|
84 |
firstLayerToDraw = 0;
|
85 |
lastLayerToDraw = drawList.getLayerCount() - 1;
|
86 |
} else {
|
87 |
// Draw the first group of layers without changes to be cached
|
88 |
// next time
|
89 |
firstLayerToDraw = 0;
|
90 |
int firstChangedLayer = drawList.getFirstChangedLayer();
|
91 |
// If negative nothing has changed, so draw all the layers
|
92 |
lastLayerToDraw = firstChangedLayer < 0 ? drawList
|
93 |
.getLayerCount() - 1 : firstChangedLayer - 1; |
94 |
} |
95 |
drawList.drawLayers(image, g, firstLayerToDraw, lastLayerToDraw, |
96 |
cancel, scale); |
97 |
cachedImage.setPartialDrawnImage(image, mapContext, viewPort, |
98 |
lastLayerToDraw); |
99 |
} |
100 |
|
101 |
if (cancel.isCanceled()) {
|
102 |
cachedImage = null;
|
103 |
return;
|
104 |
} |
105 |
|
106 |
// Draw the second group of layers not cached
|
107 |
firstLayerToDraw = lastLayerToDraw + 1;
|
108 |
lastLayerToDraw = drawList.getLayerCount() - 1;
|
109 |
drawList.drawLayers(image, g, firstLayerToDraw, lastLayerToDraw, |
110 |
cancel, scale); |
111 |
cachedImage.setFullDrawnImage(image); |
112 |
|
113 |
this.previousDrawList = drawList;
|
114 |
} |
115 |
|
116 |
private boolean isValidPartialCachedImage(DrawList drawList) { |
117 |
return cachedImage != null |
118 |
&& cachedImage.isValidPartialDrawnImage(mapContext, drawList); |
119 |
} |
120 |
|
121 |
private boolean isValidFullCachedImage() { |
122 |
return cachedImage != null |
123 |
&& cachedImage.isValidFullDrawnImage(mapContext); |
124 |
} |
125 |
|
126 |
private void print(Object layerOrComposed, Graphics2D g, |
127 |
Cancellable cancel, double scale, PrintAttributes properties)
|
128 |
throws ReadException {
|
129 |
ILabelable labelable = null;
|
130 |
ILabelable tmp = null;
|
131 |
if (layerOrComposed instanceof ILabelable) { |
132 |
|
133 |
tmp = (ILabelable) layerOrComposed; |
134 |
|
135 |
if (tmp.isLabeled() && tmp.getLabelingStrategy() != null |
136 |
&& tmp.getLabelingStrategy().shouldDrawLabels(scale)) { |
137 |
labelable = tmp; |
138 |
} |
139 |
} |
140 |
|
141 |
if (layerOrComposed instanceof FLayer) { |
142 |
FLayer layer = (FLayer) layerOrComposed; |
143 |
layer.print(g, viewPort, cancel, scale, properties); |
144 |
} else {
|
145 |
ComposedLayer composed = (ComposedLayer) layerOrComposed; |
146 |
composed.print(g, viewPort, cancel, scale, properties); |
147 |
} |
148 |
if (labelable != null) { |
149 |
labelable.printLabels(g, viewPort, cancel, scale, properties); |
150 |
} |
151 |
|
152 |
} |
153 |
|
154 |
public void setMapContext(MapContext mapContext) { |
155 |
if (this.mapContext == mapContext) { |
156 |
return;
|
157 |
} |
158 |
this.clean();
|
159 |
this.mapContext = mapContext;
|
160 |
|
161 |
} |
162 |
|
163 |
public void setViewPort(ViewPort viewPort) { |
164 |
if (this.viewPort == viewPort) { |
165 |
return;
|
166 |
} |
167 |
this.clean();
|
168 |
this.viewPort = viewPort;
|
169 |
|
170 |
} |
171 |
|
172 |
protected void clean() { |
173 |
this.cachedImage = null; |
174 |
} |
175 |
|
176 |
public class CachedImage { |
177 |
private BufferedImage partialDrawnImage; |
178 |
private BufferedImage fullDrawnImage; |
179 |
private long lastMapContextVersion; |
180 |
private long lastViewPortVersion; |
181 |
private int lastDrawnLayerPosition; |
182 |
|
183 |
public void setPartialDrawnImage(BufferedImage partialDrawnImage, |
184 |
MapContext mapContext, ViewPort viewPort, |
185 |
int lastDrawnLayerPosition) {
|
186 |
this.partialDrawnImage = CompatLocator.getGraphicsUtils()
|
187 |
.copyBufferedImage(partialDrawnImage); |
188 |
this.lastDrawnLayerPosition = lastDrawnLayerPosition;
|
189 |
updateVersions(mapContext, viewPort); |
190 |
} |
191 |
|
192 |
public void updateVersions(MapContext mapContext, ViewPort viewPort) { |
193 |
this.lastMapContextVersion = mapContext.getDrawVersion();
|
194 |
this.lastViewPortVersion = viewPort.getDrawVersion();
|
195 |
} |
196 |
|
197 |
public void setFullDrawnImage(BufferedImage fullDrawnImage) { |
198 |
this.fullDrawnImage = CompatLocator.getGraphicsUtils()
|
199 |
.copyBufferedImage(fullDrawnImage); |
200 |
} |
201 |
|
202 |
public BufferedImage getPartialDrawnImage() { |
203 |
return partialDrawnImage;
|
204 |
} |
205 |
|
206 |
public BufferedImage getFullDrawnImage() { |
207 |
return fullDrawnImage;
|
208 |
} |
209 |
|
210 |
public long getMapContextVersion() { |
211 |
return lastMapContextVersion;
|
212 |
} |
213 |
|
214 |
public int getLastDrawnLayerPosition() { |
215 |
return this.lastDrawnLayerPosition; |
216 |
} |
217 |
|
218 |
public boolean isValidFullDrawnImage(MapContext context) { |
219 |
// If the MapContext version has not changed, there are not any
|
220 |
// changes that require redrawing any of the layers.
|
221 |
return fullDrawnImage != null && !hasChangedMapContextDrawVersion(); |
222 |
} |
223 |
|
224 |
public boolean hasChangedMapContextDrawVersion() { |
225 |
// This change detects changes in layers and the viewport also
|
226 |
return mapContext.getDrawVersion() != this.lastMapContextVersion; |
227 |
} |
228 |
|
229 |
public boolean hasChangedViewPortDrawVersion() { |
230 |
// This change detects changes in the viewport
|
231 |
return viewPort.getDrawVersion() != this.lastViewPortVersion; |
232 |
} |
233 |
|
234 |
public boolean isValidPartialDrawnImage(MapContext context, |
235 |
DrawList drawList) { |
236 |
if (!hasChangedMapContextDrawVersion()) {
|
237 |
// Nothing has changed
|
238 |
return true; |
239 |
} |
240 |
|
241 |
if (partialDrawnImage == null || hasChangedViewPortDrawVersion()) { |
242 |
// No image available or changes in view port
|
243 |
return false; |
244 |
} |
245 |
|
246 |
if (drawList.size() < lastDrawnLayerPosition + 1) { |
247 |
// New list has fewer layers than before
|
248 |
return false; |
249 |
} |
250 |
|
251 |
// There is any change in the layers drawn in the partial drawn
|
252 |
// image?
|
253 |
return drawList.getFirstChangedLayer() > lastDrawnLayerPosition;
|
254 |
} |
255 |
} |
256 |
|
257 |
public class DrawList { |
258 |
private List layers = new ArrayList(); |
259 |
private List all = new ArrayList(); |
260 |
private List versions = new ArrayList(); |
261 |
private DrawList previosList = null; |
262 |
private int firstLayerChanged = -1; |
263 |
|
264 |
public DrawList() {
|
265 |
} |
266 |
|
267 |
public DrawList(DrawList previousList) {
|
268 |
if (previousList != null) { |
269 |
this.firstLayerChanged = previousList.getLayerCount();
|
270 |
this.previosList = previousList;
|
271 |
} |
272 |
} |
273 |
|
274 |
public int getLayerCount() { |
275 |
return this.layers.size(); |
276 |
} |
277 |
|
278 |
private boolean hasChanged(FLayer layer, int pos) { |
279 |
FLayer previous = (FLayer) this.previosList.layers.get(pos);
|
280 |
// String previousName = previous.getName();
|
281 |
// String layerName = layer.getName();
|
282 |
if (previous != layer) {
|
283 |
return true; |
284 |
} |
285 |
long previousVersion = ((Long) this.previosList.versions.get(pos)) |
286 |
.longValue(); |
287 |
long layerVersion = layer.getDrawVersion();
|
288 |
|
289 |
return previousVersion != layerVersion;
|
290 |
} |
291 |
|
292 |
public void add(Object obj) { |
293 |
if (obj instanceof FLayer) { |
294 |
FLayer layer = (FLayer) obj; |
295 |
int curIndex = this.layers.size(); |
296 |
if (this.firstLayerChanged >= curIndex) { |
297 |
if (this.previosList.getLayerCount() > curIndex) { |
298 |
if (this.hasChanged(layer, curIndex)) { |
299 |
this.firstLayerChanged = curIndex;
|
300 |
} |
301 |
} else if (this.previosList.getLayerCount() == curIndex) { |
302 |
this.firstLayerChanged = curIndex;
|
303 |
} |
304 |
} |
305 |
this.layers.add(layer);
|
306 |
this.versions.add(new Long(layer.getDrawVersion())); |
307 |
} else if (!(obj instanceof LayersGroupEvent)) { |
308 |
throw new UnsupportedOperationException(); |
309 |
} |
310 |
|
311 |
this.all.add(obj);
|
312 |
} |
313 |
|
314 |
public int size() { |
315 |
return this.all.size(); |
316 |
} |
317 |
|
318 |
public int getFirstChangedLayer() { |
319 |
if (this.firstLayerChanged > this.layers.size()) { |
320 |
this.firstLayerChanged = this.layers.size(); |
321 |
} |
322 |
return this.firstLayerChanged; |
323 |
} |
324 |
|
325 |
public FLayer getLayer(int pos) { |
326 |
return (FLayer) this.layers.get(pos); |
327 |
} |
328 |
|
329 |
public Object get(int pos) { |
330 |
return this.all.get(pos); |
331 |
} |
332 |
|
333 |
public void drawLayers(BufferedImage image, Graphics2D g, |
334 |
int firstLayerToDraw, int lastLayerToDraw, Cancellable cancel, |
335 |
double scale) throws ReadException { |
336 |
|
337 |
if (firstLayerToDraw > lastLayerToDraw) {
|
338 |
LOG.debug("Nothing to draw");
|
339 |
return;
|
340 |
} |
341 |
|
342 |
// Find the real layer positions excluding LayersGroupEvents
|
343 |
FLayer firstLayer = (FLayer) layers.get(firstLayerToDraw); |
344 |
int firstLayerPos = all.indexOf(firstLayer);
|
345 |
// Look if it belongs to a group and start it
|
346 |
if (firstLayerPos > 0) { |
347 |
for (int i = firstLayerPos - 1; i > 0; i++) { |
348 |
Object group = all.get(i);
|
349 |
if (group instanceof LayersGroupEvent) { |
350 |
LayersGroupEvent event = (LayersGroupEvent) group; |
351 |
if (event.type == LayersGroupEvent.IN_Event) {
|
352 |
event.group.beginDraw(g, viewPort); |
353 |
} |
354 |
break;
|
355 |
} |
356 |
} |
357 |
} |
358 |
FLayer lastLayer = (FLayer) layers.get(lastLayerToDraw); |
359 |
int lastLayerPos = all.indexOf(lastLayer);
|
360 |
|
361 |
LOG.debug("Drawing from layer {} in position (layers: {}, all: {})"
|
362 |
+ " to layer {} in position (layers: {}, all: {})",
|
363 |
new Object[] { firstLayer, new Integer(firstLayerToDraw), |
364 |
new Integer(firstLayerPos), lastLayer, |
365 |
new Integer(lastLayerToDraw), |
366 |
new Integer(lastLayerPos) }); |
367 |
|
368 |
ComposedLayer composed = null;
|
369 |
for (int pos = firstLayerPos; pos <= lastLayerPos; pos++) { |
370 |
if (cancel.isCanceled()) {
|
371 |
return;
|
372 |
} |
373 |
|
374 |
Object layerOrGroup = get(pos);
|
375 |
|
376 |
// Group drawing events management
|
377 |
if (layerOrGroup instanceof LayersGroupEvent) { |
378 |
LayersGroupEvent event = (LayersGroupEvent) layerOrGroup; |
379 |
if (event.type == LayersGroupEvent.IN_Event) {
|
380 |
event.group.beginDraw(g, viewPort); |
381 |
} else {
|
382 |
event.group.endDraw(g, viewPort); |
383 |
} |
384 |
} else {
|
385 |
FLayer layer = (FLayer) layerOrGroup; |
386 |
if (composed != null && composed.canAdd(layer)) { |
387 |
// Previous or current layer could be composed
|
388 |
// Add current layer
|
389 |
addToComposedLayer(composed, layer); |
390 |
} else {
|
391 |
if (composed != null) { |
392 |
// Current layer can't be composed on the previous
|
393 |
// composedlayer. Draw previous composed
|
394 |
LOG.debug("Drawing composed layer {} ", composed);
|
395 |
draw(composed, image, g, cancel, scale); |
396 |
composed = null;
|
397 |
} |
398 |
|
399 |
// Try if the current layer can be composed
|
400 |
// Create new composed or draw current layer
|
401 |
composed = layer.newComposedLayer(); |
402 |
if (composed == null) { |
403 |
LOG.debug("Drawing layer {} ", layer);
|
404 |
draw(layer, image, g, cancel, scale); |
405 |
} else {
|
406 |
addToComposedLayer(composed, layer); |
407 |
} |
408 |
} |
409 |
} |
410 |
} |
411 |
if (composed != null) { |
412 |
// Draw the pending composed
|
413 |
draw(composed, image, g, cancel, scale); |
414 |
} |
415 |
|
416 |
// Check if the last layer is the last of a group and close it
|
417 |
for (int i = lastLayerPos + 1; i < all.size(); i++) { |
418 |
Object group = all.get(i);
|
419 |
if (group instanceof LayersGroupEvent) { |
420 |
LayersGroupEvent event = (LayersGroupEvent) group; |
421 |
if (event.type == LayersGroupEvent.OUT_Event) {
|
422 |
event.group.endDraw(g, viewPort); |
423 |
} |
424 |
break;
|
425 |
} |
426 |
} |
427 |
} |
428 |
|
429 |
private void addToComposedLayer(ComposedLayer composed, FLayer layer) |
430 |
throws ReadException {
|
431 |
try {
|
432 |
LOG.debug("Adding layer {} to composed layer ", layer, composed);
|
433 |
composed.add(layer); |
434 |
} catch (Exception e) { |
435 |
throw new ReadException("DefalutMapContexDrawer exception", e); |
436 |
} |
437 |
} |
438 |
|
439 |
private void draw(Object layerOrComposed, BufferedImage image, |
440 |
Graphics2D g, Cancellable cancel, double scale) |
441 |
throws ReadException {
|
442 |
ILabelable labelable = null;
|
443 |
ILabelable tmp = null;
|
444 |
if (layerOrComposed instanceof ILabelable) { |
445 |
|
446 |
tmp = (ILabelable) layerOrComposed; |
447 |
|
448 |
if (tmp.isLabeled() && tmp.getLabelingStrategy() != null |
449 |
&& tmp.getLabelingStrategy().shouldDrawLabels(scale)) { |
450 |
labelable = tmp; |
451 |
} |
452 |
} |
453 |
|
454 |
if (layerOrComposed instanceof FLayer) { |
455 |
int beforeDrawEventType;
|
456 |
int afterDrawEventType;
|
457 |
if (layerOrComposed instanceof GraphicLayer) { |
458 |
beforeDrawEventType = LayerDrawEvent.GRAPHICLAYER_BEFORE_DRAW; |
459 |
afterDrawEventType = LayerDrawEvent.GRAPHICLAYER_AFTER_DRAW; |
460 |
} else {
|
461 |
beforeDrawEventType = LayerDrawEvent.LAYER_BEFORE_DRAW; |
462 |
afterDrawEventType = LayerDrawEvent.LAYER_AFTER_DRAW; |
463 |
} |
464 |
FLayer layer = (FLayer) layerOrComposed; |
465 |
drawLayer(layer, image, g, cancel, scale, beforeDrawEventType, |
466 |
afterDrawEventType); |
467 |
} else {
|
468 |
ComposedLayer composed = (ComposedLayer) layerOrComposed; |
469 |
composed.draw(image, g, viewPort, cancel, scale); |
470 |
} |
471 |
if (labelable != null) { |
472 |
labelable.drawLabels(image, g, viewPort, cancel, scale, |
473 |
MapContext.getScreenDPI()); |
474 |
} |
475 |
|
476 |
} |
477 |
|
478 |
protected void drawLayer(FLayer layer, BufferedImage image, |
479 |
Graphics2D g, Cancellable cancel, double scale, |
480 |
int beforeDrawEventType, int afterDrawEventType) |
481 |
throws ReadException {
|
482 |
LayerDrawEvent event = new LayerDrawEvent(layer, g, viewPort, beforeDrawEventType);
|
483 |
mapContext.fireLayerDrawingEvent(event); |
484 |
layer.draw(image, g, viewPort, cancel, scale); |
485 |
event = new LayerDrawEvent(layer, g, viewPort, afterDrawEventType);
|
486 |
mapContext.fireLayerDrawingEvent(event); |
487 |
} |
488 |
|
489 |
} |
490 |
|
491 |
private class SimpleLayerIterator extends LayersIterator { |
492 |
|
493 |
public SimpleLayerIterator(FLayer layer) {
|
494 |
this.appendLayer(layer);
|
495 |
} |
496 |
|
497 |
public boolean evaluate(FLayer layer) { |
498 |
if (layer instanceof FLayers) { |
499 |
return false; |
500 |
} |
501 |
return layer.isAvailable() && layer.isVisible();
|
502 |
} |
503 |
|
504 |
} |
505 |
|
506 |
public void dispose() { |
507 |
this.mapContext = null; |
508 |
this.viewPort = null; |
509 |
this.cachedImage = null; |
510 |
this.previousDrawList = null; |
511 |
} |
512 |
|
513 |
public void print(FLayers root, Graphics2D g, Cancellable cancel, |
514 |
double scale, PrintAttributes properties) throws ReadException { |
515 |
this.checkInitialized();
|
516 |
|
517 |
List printList = this.createPrintList(root, cancel); |
518 |
if (cancel.isCanceled()) {
|
519 |
return;
|
520 |
} |
521 |
|
522 |
ComposedLayer composed = null;
|
523 |
int pos;
|
524 |
FLayer layer; |
525 |
int layerPos = -1; |
526 |
Object obj;
|
527 |
LayersGroupEvent event; |
528 |
for (pos = 0; pos < printList.size(); pos++) { |
529 |
if (cancel.isCanceled()) {
|
530 |
return;
|
531 |
} |
532 |
|
533 |
obj = printList.get(pos); |
534 |
if (obj instanceof LayersGroupEvent) { |
535 |
event = (LayersGroupEvent) obj; |
536 |
if (event.type == LayersGroupEvent.IN_Event) {
|
537 |
// System.out.println("=======Empiza a pintar grupo de capas "+
|
538 |
// ((FLayers)event.group).getName() +"============");
|
539 |
event.group.beginDraw(g, viewPort); |
540 |
} else {
|
541 |
event.group.endDraw(g, viewPort); |
542 |
// System.out.println("=======Fin a pintar grupo de capas "+
|
543 |
// ((FLayers)event.group).getName() +"============");
|
544 |
|
545 |
} |
546 |
continue;
|
547 |
} |
548 |
layerPos++; |
549 |
|
550 |
layer = (FLayer) obj; |
551 |
|
552 |
// *** Pintado de capa/composicion de capa ***
|
553 |
if (composed == null) { |
554 |
composed = layer.newComposedLayer(); |
555 |
if (composed != null) { |
556 |
try {
|
557 |
composed.add(layer); |
558 |
// System.out.println("=======Imprimiendo composicion de pintado "+
|
559 |
// (layerPos-1)+" ============");
|
560 |
continue;
|
561 |
} catch (Exception e) { |
562 |
throw new ReadException( |
563 |
"DefaultMapContexDrawer exception", e);
|
564 |
} |
565 |
} |
566 |
} else {
|
567 |
if (composed.canAdd(layer)) {
|
568 |
try {
|
569 |
composed.add(layer); |
570 |
// System.out.println("=== a?adiendo a composicion de pintado "+
|
571 |
// layerPos+ " "+layer.getName());
|
572 |
continue;
|
573 |
} catch (Exception e) { |
574 |
throw new ReadException( |
575 |
"DefaultMapContexDrawer exception", e);
|
576 |
} |
577 |
} else {
|
578 |
// System.out.println("=======Imprimiendo composicion de pintado "+
|
579 |
// (layerPos-1)+" ============");
|
580 |
this.print(composed, g, cancel, scale, properties);
|
581 |
// composed.print( g, viewPort, cancel, scale,properties);
|
582 |
composed = layer.newComposedLayer(); |
583 |
if (composed != null) { |
584 |
try {
|
585 |
composed.add(layer); |
586 |
// System.out.println("=== a?adiendo a composicion de pintado "+
|
587 |
// layerPos+ " "+layer.getName());
|
588 |
continue;
|
589 |
} catch (Exception e) { |
590 |
throw new ReadException( |
591 |
"DefaultMapContexDrawer exception", e);
|
592 |
} |
593 |
} |
594 |
} |
595 |
} |
596 |
// System.out.println("=== imprimiendo "+ layerPos+
|
597 |
// " "+layer.getName());
|
598 |
this.print(layer, g, cancel, scale, properties);
|
599 |
// layer.print(g, viewPort, cancel, scale,properties);
|
600 |
// *** Pintado de capa/composicion de capa ***
|
601 |
if (composed != null) { |
602 |
// si la composicion no se ha pintado la pintamos
|
603 |
// System.out.println("=======Imprimiendo composicion de pintado "+
|
604 |
// (layerPos-1)+" (ultimo) ============");
|
605 |
this.print(composed, g, cancel, scale, properties);
|
606 |
// composed.print(g, viewPort, cancel, scale, properties);
|
607 |
composed = null;
|
608 |
} |
609 |
} |
610 |
|
611 |
} |
612 |
|
613 |
private DrawList createDrawList(FLayers root, Cancellable cancel,
|
614 |
double scale) {
|
615 |
DrawList result = new DrawList(this.previousDrawList); |
616 |
Iterator iter = new MyLayerIterator((FLayer) root, scale); |
617 |
while (iter.hasNext()) {
|
618 |
if (cancel.isCanceled()) {
|
619 |
return null; |
620 |
} |
621 |
result.add(iter.next()); |
622 |
} |
623 |
if (cancel.isCanceled()) {
|
624 |
return null; |
625 |
} |
626 |
// Take into account also the Graphic layer
|
627 |
result.add(mapContext.getGraphicsLayer()); |
628 |
return result;
|
629 |
} |
630 |
|
631 |
private List createPrintList(FLayers root, Cancellable cancel) { |
632 |
List result = new ArrayList(); |
633 |
Iterator iter = new SimpleLayerIterator((FLayer) root); |
634 |
while (iter.hasNext()) {
|
635 |
if (cancel.isCanceled()) {
|
636 |
return null; |
637 |
} |
638 |
result.add(iter.next()); |
639 |
} |
640 |
return result;
|
641 |
} |
642 |
|
643 |
private class MyLayerIterator implements Iterator { |
644 |
List layersList = new ArrayList(); |
645 |
int index = 0; |
646 |
double scale = 0; |
647 |
|
648 |
public MyLayerIterator(FLayer layer, double scale) { |
649 |
this.scale = scale;
|
650 |
this.appendLayer(layer);
|
651 |
} |
652 |
|
653 |
protected void appendLayer(FLayer layer) { |
654 |
if (layer instanceof LayerCollection) { |
655 |
appendLayers((LayerCollection) layer); |
656 |
} else if (this.evaluate(layer)) { |
657 |
layersList.add(layer); |
658 |
} |
659 |
} |
660 |
|
661 |
private void appendLayers(LayerCollection layers) { |
662 |
int i;
|
663 |
layersList.add(new LayersGroupEvent(layers,
|
664 |
LayersGroupEvent.IN_Event)); |
665 |
for (i = 0; i < layers.getLayersCount(); i++) { |
666 |
appendLayer(layers.getLayer(i)); |
667 |
} |
668 |
layersList.add(new LayersGroupEvent(layers,
|
669 |
LayersGroupEvent.OUT_Event)); |
670 |
} |
671 |
|
672 |
public void remove() { |
673 |
throw new UnsupportedOperationException(); |
674 |
} |
675 |
|
676 |
public boolean hasNext() { |
677 |
return index < layersList.size();
|
678 |
} |
679 |
|
680 |
public Object next() { |
681 |
if (!this.hasNext()) { |
682 |
throw new NoSuchElementException(); |
683 |
} |
684 |
Object aux = layersList.get(index);
|
685 |
index++; |
686 |
return aux;
|
687 |
} |
688 |
|
689 |
public boolean evaluate(FLayer layer) { |
690 |
if (layer instanceof LayerCollection) { |
691 |
return false; |
692 |
} |
693 |
return layer.isAvailable() && layer.isVisible()
|
694 |
&& layer.isWithinScale(this.scale);
|
695 |
} |
696 |
|
697 |
} |
698 |
|
699 |
private class LayersGroupEvent { |
700 |
public static final String IN_Event = "in"; |
701 |
public static final String OUT_Event = "Out"; |
702 |
|
703 |
private LayerCollection group = null; |
704 |
private String type = IN_Event; |
705 |
|
706 |
public LayersGroupEvent(LayerCollection group, String type) { |
707 |
this.group = group;
|
708 |
this.type = type;
|
709 |
} |
710 |
|
711 |
public String getType() { |
712 |
return type;
|
713 |
} |
714 |
|
715 |
public LayerCollection getGroup() {
|
716 |
return group;
|
717 |
} |
718 |
} |
719 |
|
720 |
} |