source: josm/trunk/src/org/openstreetmap/josm/gui/MapView.java@ 1750

Last change on this file since 1750 was 1750, checked in by Gubaer, 15 years ago

new: replaced global conflict list by conflict list per layer, similar to datasets

  • Property svn:eol-style set to native
File size: 15.3 KB
Line 
1// License: GPL. See LICENSE file for details.
2
3package org.openstreetmap.josm.gui;
4
5import static org.openstreetmap.josm.tools.I18n.tr;
6
7import java.awt.Color;
8import java.awt.Graphics;
9import java.awt.Graphics2D;
10import java.awt.Point;
11import java.awt.event.ComponentAdapter;
12import java.awt.event.ComponentEvent;
13import java.awt.event.MouseEvent;
14import java.awt.event.MouseMotionListener;
15import java.awt.image.BufferedImage;
16import java.util.ArrayList;
17import java.util.Collection;
18import java.util.Collections;
19import java.util.Enumeration;
20import java.util.LinkedList;
21
22import javax.swing.AbstractButton;
23import javax.swing.JComponent;
24import javax.swing.JOptionPane;
25
26import org.openstreetmap.josm.Main;
27import org.openstreetmap.josm.actions.AutoScaleAction;
28import org.openstreetmap.josm.actions.JosmAction;
29import org.openstreetmap.josm.actions.MoveAction;
30import org.openstreetmap.josm.actions.mapmode.MapMode;
31import org.openstreetmap.josm.data.ProjectionBounds;
32import org.openstreetmap.josm.data.SelectionChangedListener;
33import org.openstreetmap.josm.data.osm.DataSet;
34import org.openstreetmap.josm.data.osm.DataSource;
35import org.openstreetmap.josm.data.osm.OsmPrimitive;
36import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
37import org.openstreetmap.josm.gui.layer.Layer;
38import org.openstreetmap.josm.gui.layer.MapViewPaintable;
39import org.openstreetmap.josm.gui.layer.OsmDataLayer;
40import org.openstreetmap.josm.gui.layer.OsmDataLayer.ModifiedChangedListener;
41import org.openstreetmap.josm.gui.layer.markerlayer.MarkerLayer;
42import org.openstreetmap.josm.gui.layer.markerlayer.PlayHeadMarker;
43import org.openstreetmap.josm.tools.AudioPlayer;
44
45/**
46 * This is a component used in the MapFrame for browsing the map. It use is to
47 * provide the MapMode's enough capabilities to operate.
48 *
49 * MapView hold meta-data about the data set currently displayed, as scale level,
50 * center point viewed, what scrolling mode or editing mode is selected or with
51 * what projection the map is viewed etc..
52 *
53 * MapView is able to administrate several layers.
54 *
55 * @author imi
56 */
57public class MapView extends NavigatableComponent {
58
59
60 /**
61 * A list of all layers currently loaded.
62 */
63 private ArrayList<Layer> layers = new ArrayList<Layer>();
64 /**
65 * The play head marker: there is only one of these so it isn't in any specific layer
66 */
67 public PlayHeadMarker playHeadMarker = null;
68
69 /**
70 * The layer from the layers list that is currently active.
71 */
72 private Layer activeLayer;
73
74 /**
75 * The last event performed by mouse.
76 */
77 public MouseEvent lastMEvent;
78
79 private LinkedList<MapViewPaintable> temporaryLayers = new LinkedList<MapViewPaintable>();
80
81 private BufferedImage offscreenBuffer;
82
83 public MapView() {
84 addComponentListener(new ComponentAdapter(){
85 @Override public void componentResized(ComponentEvent e) {
86 removeComponentListener(this);
87
88 MapSlider zoomSlider = new MapSlider(MapView.this);
89 add(zoomSlider);
90 zoomSlider.setBounds(3, 0, 114, 30);
91
92 MapScaler scaler = new MapScaler(MapView.this);
93 add(scaler);
94 scaler.setLocation(10,30);
95
96 if (!zoomToEditLayerBoundingBox()) {
97 new AutoScaleAction("data").actionPerformed(null);
98 }
99
100 new MapMover(MapView.this, Main.contentPane);
101 JosmAction mv;
102 mv = new MoveAction(MoveAction.Direction.UP);
103 if (mv.getShortcut() != null) {
104 Main.contentPane.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(mv.getShortcut().getKeyStroke(), "UP");
105 Main.contentPane.getActionMap().put("UP", mv);
106 }
107 mv = new MoveAction(MoveAction.Direction.DOWN);
108 if (mv.getShortcut() != null) {
109 Main.contentPane.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(mv.getShortcut().getKeyStroke(), "DOWN");
110 Main.contentPane.getActionMap().put("DOWN", mv);
111 }
112 mv = new MoveAction(MoveAction.Direction.LEFT);
113 if (mv.getShortcut() != null) {
114 Main.contentPane.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(mv.getShortcut().getKeyStroke(), "LEFT");
115 Main.contentPane.getActionMap().put("LEFT", mv);
116 }
117 mv = new MoveAction(MoveAction.Direction.RIGHT);
118 if (mv.getShortcut() != null) {
119 Main.contentPane.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(mv.getShortcut().getKeyStroke(), "RIGHT");
120 Main.contentPane.getActionMap().put("RIGHT", mv);
121 }
122 }
123 });
124
125 // listend to selection changes to redraw the map
126 DataSet.selListeners.add(new SelectionChangedListener(){
127 public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
128 repaint();
129 }
130 });
131
132 //store the last mouse action
133 this.addMouseMotionListener(new MouseMotionListener() {
134 public void mouseDragged(MouseEvent e) {
135 mouseMoved(e);
136 }
137 public void mouseMoved(MouseEvent e) {
138 lastMEvent = e;
139 }
140 });
141 }
142
143 /**
144 * Add a layer to the current MapView. The layer will be added at topmost
145 * position.
146 */
147 public void addLayer(Layer layer) {
148 if (layer instanceof OsmDataLayer) {
149 OsmDataLayer editLayer = (OsmDataLayer)layer;
150 Main.ds = editLayer.data;
151 editLayer.listenerModified.add(new ModifiedChangedListener(){
152 public void modifiedChanged(boolean value, OsmDataLayer source) {
153 JOptionPane.getFrameForComponent(Main.parent).setTitle((value?"*":"")
154 +tr("Java OpenStreetMap Editor"));
155 }
156 });
157 }
158 if (layer instanceof MarkerLayer && playHeadMarker == null) {
159 playHeadMarker = PlayHeadMarker.create();
160 }
161 int pos = layers.size();
162 while(pos > 0 && layers.get(pos-1).background) {
163 --pos;
164 }
165 layers.add(pos, layer);
166
167 for (Layer.LayerChangeListener l : Layer.listeners) {
168 l.layerAdded(layer);
169 }
170 if (layer instanceof OsmDataLayer || activeLayer == null) {
171 // autoselect the new layer
172 Layer old = activeLayer;
173 setActiveLayer(layer);
174 for (Layer.LayerChangeListener l : Layer.listeners) {
175 l.activeLayerChange(old, layer);
176 }
177 }
178 AudioPlayer.reset();
179 repaint();
180 }
181
182 @Override
183 protected DataSet getData() {
184 if(activeLayer != null && activeLayer instanceof OsmDataLayer)
185 return ((OsmDataLayer)activeLayer).data;
186 return new DataSet();
187 }
188
189 /**
190 * Replies true if the active layer is drawable.
191 *
192 * @return true if the active layer is drawable, false otherwise
193 */
194 public boolean isActiveLayerDrawable() {
195 return activeLayer != null && activeLayer instanceof OsmDataLayer;
196 }
197
198 /**
199 * Replies true if the active layer is visible.
200 *
201 * @return true if the active layer is visible, false otherwise
202 */
203 public boolean isActiveLayerVisible() {
204 return isActiveLayerDrawable() && activeLayer.visible;
205 }
206
207 /**
208 * Remove the layer from the mapview. If the layer was in the list before,
209 * an LayerChange event is fired.
210 */
211 public void removeLayer(Layer layer) {
212 if (layers.remove(layer)) {
213 for (Layer.LayerChangeListener l : Layer.listeners) {
214 l.layerRemoved(layer);
215 }
216 }
217 if (layer == activeLayer) {
218 if (layer instanceof OsmDataLayer) {
219 Main.ds.setSelected();
220 }
221 }
222 layer.destroy();
223 AudioPlayer.reset();
224 }
225
226 private boolean virtualNodesEnabled = false;
227 public void setVirtualNodesEnabled(boolean enabled) {
228 if(virtualNodesEnabled != enabled) {
229 virtualNodesEnabled = enabled;
230 repaint();
231 }
232 }
233 public boolean isVirtualNodesEnabled() {
234 return virtualNodesEnabled;
235 }
236
237 /**
238 * Moves the layer to the given new position. No event is fired.
239 * @param layer The layer to move
240 * @param pos The new position of the layer
241 */
242 public void moveLayer(Layer layer, int pos) {
243 int curLayerPos = layers.indexOf(layer);
244 if (curLayerPos == -1)
245 throw new IllegalArgumentException(tr("layer not in list."));
246 if (pos == curLayerPos)
247 return; // already in place.
248 layers.remove(curLayerPos);
249 if (pos >= layers.size()) {
250 layers.add(layer);
251 } else {
252 layers.add(pos, layer);
253 }
254 AudioPlayer.reset();
255 }
256
257
258 public int getLayerPos(Layer layer) {
259 int curLayerPos = layers.indexOf(layer);
260 if (curLayerPos == -1)
261 throw new IllegalArgumentException(tr("layer not in list."));
262 return curLayerPos;
263 }
264
265 /**
266 * Draw the component.
267 */
268 @Override public void paint(Graphics g) {
269 if (center == null)
270 return; // no data loaded yet.
271
272 // re-create offscreen-buffer if we've been resized, otherwise
273 // just re-use it.
274 if (null == offscreenBuffer || offscreenBuffer.getWidth() != getWidth()
275 || offscreenBuffer.getHeight() != getHeight()) {
276 offscreenBuffer = new BufferedImage(getWidth(), getHeight(),
277 BufferedImage.TYPE_INT_ARGB);
278 }
279
280 Graphics2D tempG = offscreenBuffer.createGraphics();
281 tempG.setColor(Main.pref.getColor("background", Color.BLACK));
282 tempG.fillRect(0, 0, getWidth(), getHeight());
283
284 for (int i = layers.size()-1; i >= 0; --i) {
285 Layer l = layers.get(i);
286 if (l.visible/* && l != getActiveLayer()*/) {
287 l.paint(tempG, this);
288 }
289 }
290
291 /*if (getActiveLayer() != null && getActiveLayer().visible)
292 getActiveLayer().paint(tempG, this);*/
293
294 for (MapViewPaintable mvp : temporaryLayers) {
295 mvp.paint(tempG, this);
296 }
297
298 // draw world borders
299 tempG.setColor(Color.WHITE);
300 ProjectionBounds b = getProjection().getWorldBounds();
301 Point min = getPoint(b.min);
302 Point max = getPoint(b.max);
303 int x1 = Math.min(min.x, max.x);
304 int y1 = Math.min(min.y, max.y);
305 int x2 = Math.max(min.x, max.x);
306 int y2 = Math.max(min.y, max.y);
307 if (x1 > 0 || y1 > 0 || x2 < getWidth() || y2 < getHeight()) {
308 tempG.drawRect(x1, y1, x2-x1+1, y2-y1+1);
309 }
310
311 if (playHeadMarker != null) {
312 playHeadMarker.paint(tempG, this);
313 }
314
315 g.drawImage(offscreenBuffer, 0, 0, null);
316 super.paint(g);
317 }
318
319 /**
320 * Set the new dimension to the view.
321 */
322 public void recalculateCenterScale(BoundingXYVisitor box) {
323 if(box == null) {
324 box = new BoundingXYVisitor();
325 }
326 if(box.getBounds() == null) {
327 box.visit(getProjection().getWorldBounds());
328 }
329 if(!box.hasExtend()) {
330 box.enlargeBoundingBox();
331 }
332
333 zoomTo(box.getBounds());
334 }
335
336 /**
337 * @return An unmodifiable collection of all layers
338 */
339 public Collection<Layer> getAllLayers() {
340 return Collections.unmodifiableCollection(layers);
341 }
342
343 /**
344 * Sets the active layer to <code>layer</code>. If <code>layer</code> is an instance
345 * of {@see OsmDataLayer} also sets {@see #editLayer} to <code>layer</code>.
346 *
347 * @param layer the layer to be activate; must be one of the layers in the list of layers
348 * @exception IllegalArgumentException thrown if layer is not in the lis of layers
349 */
350 public void setActiveLayer(Layer layer) {
351 if (!layers.contains(layer))
352 throw new IllegalArgumentException(tr("Layer {0} must be in list of layers", layer.toString()));
353 if (layer instanceof OsmDataLayer) {
354 OsmDataLayer editLayer = (OsmDataLayer)layer;
355 Main.ds = editLayer.data;
356 } else {
357 Main.ds.setSelected();
358 }
359 DataSet.fireSelectionChanged(Main.ds.getSelected());
360 Layer old = activeLayer;
361 activeLayer = layer;
362 if (old != layer) {
363 for (Layer.LayerChangeListener l : Layer.listeners) {
364 l.activeLayerChange(old, layer);
365 }
366 }
367
368 /* This only makes the buttons look disabled. Disabling the actions as well requires
369 * the user to re-select the tool after i.e. moving a layer. While testing I found
370 * that I switch layers and actions at the same time and it was annoying to mind the
371 * order. This way it works as visual clue for new users */
372 for (Enumeration<AbstractButton> e = Main.map.toolGroup.getElements() ; e.hasMoreElements() ;) {
373 AbstractButton x=e.nextElement();
374 x.setEnabled(((MapMode)x.getAction()).layerIsSupported(layer));
375 }
376 AudioPlayer.reset();
377 repaint();
378 }
379
380 /**
381 * Replies the currently active layer
382 *
383 * @return the currently active layer (may be null)
384 */
385 public Layer getActiveLayer() {
386 return activeLayer;
387 }
388
389 /**
390 * Replies the current edit layer, if any
391 *
392 * @return the current edit layer. May be null.
393 */
394 public OsmDataLayer getEditLayer() {
395 if (activeLayer instanceof OsmDataLayer)
396 return (OsmDataLayer)activeLayer;
397 return null;
398 }
399
400 /**
401 * replies true if the list of layers managed by this map view contain layer
402 *
403 * @param layer the layer
404 * @return true if the list of layers managed by this map view contain layer
405 */
406 public boolean hasLayer(Layer layer) {
407 return layers.contains(layer);
408 }
409
410 /**
411 * Tries to zoom to the download boundingbox[es] of the current edit layer
412 * (aka {@link OsmDataLayer}). If the edit layer has multiple download bounding
413 * boxes it zooms to a large virtual bounding box containing all smaller ones.
414 * This implementation can be used for resolving ticket #1461.
415 *
416 * @return <code>true</code> if a zoom operation has been performed
417 */
418 public boolean zoomToEditLayerBoundingBox() {
419 // workaround for #1461 (zoom to download bounding box instead of all data)
420 // In case we already have an existing data layer ...
421 Collection<DataSource> dataSources = Main.main.createOrGetEditLayer().data.dataSources;
422 // ... with bounding box[es] of data loaded from OSM or a file...
423 BoundingXYVisitor bbox = new BoundingXYVisitor();
424 for (DataSource ds : dataSources) {
425 bbox.visit(ds.bounds);
426 if (bbox.hasExtend()) {
427 // ... we zoom to it's bounding box
428 recalculateCenterScale(bbox);
429 return true;
430 }
431 }
432 return false;
433 }
434
435 public boolean addTemporaryLayer(MapViewPaintable mvp) {
436 if (temporaryLayers.contains(mvp)) return false;
437 return temporaryLayers.add(mvp);
438 }
439
440 public boolean removeTemporaryLayer(MapViewPaintable mvp) {
441 return temporaryLayers.remove(mvp);
442 }
443}
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