source: josm/trunk/src/org/openstreetmap/josm/actions/AutoScaleAction.java@ 10420

Last change on this file since 10420 was 10413, checked in by Don-vip, 8 years ago

fix #12983 - replace calls to Main.main.get[Active|Edit]Layer() by Main.getLayerManager().get[Active|Edit]Layer() - gsoc-core
  • Property svn:eol-style set to native
File size: 16.0 KB
Line 
1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.actions;
3
4import static org.openstreetmap.josm.gui.help.HelpUtil.ht;
5import static org.openstreetmap.josm.tools.I18n.marktr;
6import static org.openstreetmap.josm.tools.I18n.tr;
7
8import java.awt.event.ActionEvent;
9import java.awt.event.KeyEvent;
10import java.awt.geom.Area;
11import java.util.ArrayList;
12import java.util.Arrays;
13import java.util.Collection;
14import java.util.Collections;
15import java.util.HashSet;
16import java.util.List;
17
18import javax.swing.JOptionPane;
19import javax.swing.event.ListSelectionEvent;
20import javax.swing.event.ListSelectionListener;
21import javax.swing.event.TreeSelectionEvent;
22import javax.swing.event.TreeSelectionListener;
23
24import org.openstreetmap.josm.Main;
25import org.openstreetmap.josm.data.Bounds;
26import org.openstreetmap.josm.data.DataSource;
27import org.openstreetmap.josm.data.conflict.Conflict;
28import org.openstreetmap.josm.data.osm.DataSet;
29import org.openstreetmap.josm.data.osm.OsmPrimitive;
30import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
31import org.openstreetmap.josm.data.validation.TestError;
32import org.openstreetmap.josm.gui.MapFrame;
33import org.openstreetmap.josm.gui.MapFrameListener;
34import org.openstreetmap.josm.gui.MapView;
35import org.openstreetmap.josm.gui.dialogs.LayerListDialog;
36import org.openstreetmap.josm.gui.dialogs.ValidatorDialog.ValidatorBoundingXYVisitor;
37import org.openstreetmap.josm.gui.layer.Layer;
38import org.openstreetmap.josm.tools.Shortcut;
39
40/**
41 * Toggles the autoScale feature of the mapView
42 * @author imi
43 */
44public class AutoScaleAction extends JosmAction {
45
46 /**
47 * A list of things we can zoom to. The zoom target is given depending on the mode.
48 */
49 public static final Collection<String> MODES = Collections.unmodifiableList(Arrays.asList(
50 marktr(/* ICON(dialogs/autoscale/) */ "data"),
51 marktr(/* ICON(dialogs/autoscale/) */ "layer"),
52 marktr(/* ICON(dialogs/autoscale/) */ "selection"),
53 marktr(/* ICON(dialogs/autoscale/) */ "conflict"),
54 marktr(/* ICON(dialogs/autoscale/) */ "download"),
55 marktr(/* ICON(dialogs/autoscale/) */ "problem"),
56 marktr(/* ICON(dialogs/autoscale/) */ "previous"),
57 marktr(/* ICON(dialogs/autoscale/) */ "next")));
58
59 /**
60 * One of {@link #MODES}. Defines what we are zooming to.
61 */
62 private final String mode;
63
64 /** Time of last zoom to bounds action */
65 protected long lastZoomTime = -1;
66 /** Last zommed bounds */
67 protected int lastZoomArea = -1;
68
69 /**
70 * Zooms the current map view to the currently selected primitives.
71 * Does nothing if there either isn't a current map view or if there isn't a current data
72 * layer.
73 *
74 */
75 public static void zoomToSelection() {
76 if (Main.main == null || !Main.main.hasEditLayer())
77 return;
78 Collection<OsmPrimitive> sel = Main.getLayerManager().getEditLayer().data.getSelected();
79 if (sel.isEmpty()) {
80 JOptionPane.showMessageDialog(
81 Main.parent,
82 tr("Nothing selected to zoom to."),
83 tr("Information"),
84 JOptionPane.INFORMATION_MESSAGE);
85 return;
86 }
87 zoomTo(sel);
88 }
89
90 /**
91 * Zooms the view to display the given set of primitives.
92 * @param sel The primitives to zoom to, e.g. the current selection.
93 */
94 public static void zoomTo(Collection<OsmPrimitive> sel) {
95 BoundingXYVisitor bboxCalculator = new BoundingXYVisitor();
96 bboxCalculator.computeBoundingBox(sel);
97 // increase bbox. This is required
98 // especially if the bbox contains one single node, but helpful
99 // in most other cases as well.
100 bboxCalculator.enlargeBoundingBox();
101 if (bboxCalculator.getBounds() != null) {
102 Main.map.mapView.zoomTo(bboxCalculator);
103 }
104 }
105
106 /**
107 * Performs the auto scale operation of the given mode without the need to create a new action.
108 * @param mode One of {@link #MODES}.
109 */
110 public static void autoScale(String mode) {
111 new AutoScaleAction(mode, false).autoScale();
112 }
113
114 private static int getModeShortcut(String mode) {
115 int shortcut = -1;
116
117 // TODO: convert this to switch/case and make sure the parsing still works
118 // CHECKSTYLE.OFF: LeftCurly
119 // CHECKSTYLE.OFF: RightCurly
120 /* leave as single line for shortcut overview parsing! */
121 if (mode.equals("data")) { shortcut = KeyEvent.VK_1; }
122 else if (mode.equals("layer")) { shortcut = KeyEvent.VK_2; }
123 else if (mode.equals("selection")) { shortcut = KeyEvent.VK_3; }
124 else if (mode.equals("conflict")) { shortcut = KeyEvent.VK_4; }
125 else if (mode.equals("download")) { shortcut = KeyEvent.VK_5; }
126 else if (mode.equals("problem")) { shortcut = KeyEvent.VK_6; }
127 else if (mode.equals("previous")) { shortcut = KeyEvent.VK_8; }
128 else if (mode.equals("next")) { shortcut = KeyEvent.VK_9; }
129 // CHECKSTYLE.ON: LeftCurly
130 // CHECKSTYLE.ON: RightCurly
131
132 return shortcut;
133 }
134
135 /**
136 * Constructs a new {@code AutoScaleAction}.
137 * @param mode The autoscale mode (one of {@link AutoScaleAction#MODES})
138 * @param marker Used only to differentiate from default constructor
139 */
140 private AutoScaleAction(String mode, boolean marker) {
141 super(false);
142 this.mode = mode;
143 }
144
145 /**
146 * Constructs a new {@code AutoScaleAction}.
147 * @param mode The autoscale mode (one of {@link AutoScaleAction#MODES})
148 */
149 public AutoScaleAction(final String mode) {
150 super(tr("Zoom to {0}", tr(mode)), "dialogs/autoscale/" + mode, tr("Zoom the view to {0}.", tr(mode)),
151 Shortcut.registerShortcut("view:zoom" + mode, tr("View: {0}", tr("Zoom to {0}", tr(mode))),
152 getModeShortcut(mode), Shortcut.DIRECT), true, null, false);
153 String modeHelp = Character.toUpperCase(mode.charAt(0)) + mode.substring(1);
154 putValue("help", "Action/AutoScale/" + modeHelp);
155 this.mode = mode;
156 switch (mode) {
157 case "data":
158 putValue("help", ht("/Action/ZoomToData"));
159 break;
160 case "layer":
161 putValue("help", ht("/Action/ZoomToLayer"));
162 break;
163 case "selection":
164 putValue("help", ht("/Action/ZoomToSelection"));
165 break;
166 case "conflict":
167 putValue("help", ht("/Action/ZoomToConflict"));
168 break;
169 case "problem":
170 putValue("help", ht("/Action/ZoomToProblem"));
171 break;
172 case "download":
173 putValue("help", ht("/Action/ZoomToDownload"));
174 break;
175 case "previous":
176 putValue("help", ht("/Action/ZoomToPrevious"));
177 break;
178 case "next":
179 putValue("help", ht("/Action/ZoomToNext"));
180 break;
181 default:
182 throw new IllegalArgumentException("Unknown mode: " + mode);
183 }
184 installAdapters();
185 }
186
187 /**
188 * Performs this auto scale operation for the mode this action is in.
189 */
190 public void autoScale() {
191 if (Main.isDisplayingMapView()) {
192 switch (mode) {
193 case "previous":
194 Main.map.mapView.zoomPrevious();
195 break;
196 case "next":
197 Main.map.mapView.zoomNext();
198 break;
199 default:
200 BoundingXYVisitor bbox = getBoundingBox();
201 if (bbox != null && bbox.getBounds() != null) {
202 Main.map.mapView.zoomTo(bbox);
203 }
204 }
205 }
206 putValue("active", Boolean.TRUE);
207 }
208
209 @Override
210 public void actionPerformed(ActionEvent e) {
211 autoScale();
212 }
213
214 /**
215 * Replies the first selected layer in the layer list dialog. null, if no
216 * such layer exists, either because the layer list dialog is not yet created
217 * or because no layer is selected.
218 *
219 * @return the first selected layer in the layer list dialog
220 */
221 protected Layer getFirstSelectedLayer() {
222 if (Main.getLayerManager().getActiveLayer() == null) {
223 return null;
224 }
225 List<Layer> layers = LayerListDialog.getInstance().getModel().getSelectedLayers();
226 if (layers.isEmpty())
227 return null;
228 return layers.get(0);
229 }
230
231 private BoundingXYVisitor getBoundingBox() {
232 BoundingXYVisitor v = "problem".equals(mode) ? new ValidatorBoundingXYVisitor() : new BoundingXYVisitor();
233
234 switch (mode) {
235 case "problem":
236 return modeProblem(v);
237 case "data":
238 return modeData(v);
239 case "layer":
240 return modeLayer(v);
241 case "selection":
242 case "conflict":
243 return modeSelectionOrConflict(v);
244 case "download":
245 return modeDownload(v);
246 default:
247 return v;
248 }
249 }
250
251 private static BoundingXYVisitor modeProblem(BoundingXYVisitor v) {
252 TestError error = Main.map.validatorDialog.getSelectedError();
253 if (error == null)
254 return null;
255 ((ValidatorBoundingXYVisitor) v).visit(error);
256 if (v.getBounds() == null)
257 return null;
258 v.enlargeBoundingBox(Main.pref.getDouble("validator.zoom-enlarge-bbox", 0.0002));
259 return v;
260 }
261
262 private static BoundingXYVisitor modeData(BoundingXYVisitor v) {
263 for (Layer l : Main.getLayerManager().getLayers()) {
264 l.visitBoundingBox(v);
265 }
266 return v;
267 }
268
269 private BoundingXYVisitor modeLayer(BoundingXYVisitor v) {
270 // try to zoom to the first selected layer
271 Layer l = getFirstSelectedLayer();
272 if (l == null)
273 return null;
274 l.visitBoundingBox(v);
275 return v;
276 }
277
278 private BoundingXYVisitor modeSelectionOrConflict(BoundingXYVisitor v) {
279 Collection<OsmPrimitive> sel = new HashSet<>();
280 if ("selection".equals(mode)) {
281 sel = getLayerManager().getEditDataSet().getSelected();
282 } else {
283 Conflict<? extends OsmPrimitive> c = Main.map.conflictDialog.getSelectedConflict();
284 if (c != null) {
285 sel.add(c.getMy());
286 } else if (Main.map.conflictDialog.getConflicts() != null) {
287 sel = Main.map.conflictDialog.getConflicts().getMyConflictParties();
288 }
289 }
290 if (sel.isEmpty()) {
291 JOptionPane.showMessageDialog(
292 Main.parent,
293 "selection".equals(mode) ? tr("Nothing selected to zoom to.") : tr("No conflicts to zoom to"),
294 tr("Information"),
295 JOptionPane.INFORMATION_MESSAGE);
296 return null;
297 }
298 for (OsmPrimitive osm : sel) {
299 osm.accept(v);
300 }
301
302 // Increase the bounding box by up to 100% to give more context.
303 v.enlargeBoundingBoxLogarithmically(100);
304 // Make the bounding box at least 100 meter wide to
305 // ensure reasonable zoom level when zooming onto single nodes.
306 v.enlargeToMinSize(Main.pref.getDouble("zoom_to_selection_min_size_in_meter", 100));
307 return v;
308 }
309
310 private BoundingXYVisitor modeDownload(BoundingXYVisitor v) {
311 if (lastZoomTime > 0 && System.currentTimeMillis() - lastZoomTime > Main.pref.getLong("zoom.bounds.reset.time", 10L*1000L)) {
312 lastZoomTime = -1;
313 }
314 final DataSet dataset = getLayerManager().getEditDataSet();
315 if (dataset != null) {
316 List<DataSource> dataSources = new ArrayList<>(dataset.getDataSources());
317 int s = dataSources.size();
318 if (s > 0) {
319 if (lastZoomTime == -1 || lastZoomArea == -1 || lastZoomArea > s) {
320 lastZoomArea = s-1;
321 v.visit(dataSources.get(lastZoomArea).bounds);
322 } else if (lastZoomArea > 0) {
323 lastZoomArea -= 1;
324 v.visit(dataSources.get(lastZoomArea).bounds);
325 } else {
326 lastZoomArea = -1;
327 Area sourceArea = Main.main.getCurrentDataSet().getDataSourceArea();
328 if (sourceArea != null) {
329 v.visit(new Bounds(sourceArea.getBounds2D()));
330 }
331 }
332 lastZoomTime = System.currentTimeMillis();
333 } else {
334 lastZoomTime = -1;
335 lastZoomArea = -1;
336 }
337 }
338 return v;
339 }
340
341 @Override
342 protected void updateEnabledState() {
343 DataSet ds = getLayerManager().getEditDataSet();
344 switch (mode) {
345 case "selection":
346 setEnabled(ds != null && !ds.selectionEmpty());
347 break;
348 case "layer":
349 setEnabled(getFirstSelectedLayer() != null);
350 break;
351 case "conflict":
352 setEnabled(Main.map != null && Main.map.conflictDialog.getSelectedConflict() != null);
353 break;
354 case "download":
355 setEnabled(ds != null && !ds.getDataSources().isEmpty());
356 break;
357 case "problem":
358 setEnabled(Main.map != null && Main.map.validatorDialog.getSelectedError() != null);
359 break;
360 case "previous":
361 setEnabled(Main.isDisplayingMapView() && Main.map.mapView.hasZoomUndoEntries());
362 break;
363 case "next":
364 setEnabled(Main.isDisplayingMapView() && Main.map.mapView.hasZoomRedoEntries());
365 break;
366 default:
367 setEnabled(!getLayerManager().getLayers().isEmpty());
368 }
369 }
370
371 @Override
372 protected void updateEnabledState(Collection<? extends OsmPrimitive> selection) {
373 if ("selection".equals(mode)) {
374 setEnabled(selection != null && !selection.isEmpty());
375 }
376 }
377
378 @Override
379 protected final void installAdapters() {
380 super.installAdapters();
381 // make this action listen to zoom and mapframe change events
382 //
383 MapView.addZoomChangeListener(new ZoomChangeAdapter());
384 Main.addMapFrameListener(new MapFrameAdapter());
385 initEnabledState();
386 }
387
388 /**
389 * Adapter for zoom change events
390 */
391 private class ZoomChangeAdapter implements MapView.ZoomChangeListener {
392 @Override
393 public void zoomChanged() {
394 updateEnabledState();
395 }
396 }
397
398 /**
399 * Adapter for MapFrame change events
400 */
401 private class MapFrameAdapter implements MapFrameListener {
402 private ListSelectionListener conflictSelectionListener;
403 private TreeSelectionListener validatorSelectionListener;
404
405 MapFrameAdapter() {
406 if ("conflict".equals(mode)) {
407 conflictSelectionListener = new ListSelectionListener() {
408 @Override
409 public void valueChanged(ListSelectionEvent e) {
410 updateEnabledState();
411 }
412 };
413 } else if ("problem".equals(mode)) {
414 validatorSelectionListener = new TreeSelectionListener() {
415 @Override
416 public void valueChanged(TreeSelectionEvent e) {
417 updateEnabledState();
418 }
419 };
420 }
421 }
422
423 @Override
424 public void mapFrameInitialized(MapFrame oldFrame, MapFrame newFrame) {
425 if (conflictSelectionListener != null) {
426 if (newFrame != null) {
427 newFrame.conflictDialog.addListSelectionListener(conflictSelectionListener);
428 } else if (oldFrame != null) {
429 oldFrame.conflictDialog.removeListSelectionListener(conflictSelectionListener);
430 }
431 } else if (validatorSelectionListener != null) {
432 if (newFrame != null) {
433 newFrame.validatorDialog.addTreeSelectionListener(validatorSelectionListener);
434 } else if (oldFrame != null) {
435 oldFrame.validatorDialog.removeTreeSelectionListener(validatorSelectionListener);
436 }
437 }
438 updateEnabledState();
439 }
440 }
441}
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