source: josm/trunk/src/org/openstreetmap/josm/actions/PurgeAction.java@ 11063

Last change on this file since 11063 was 10619, checked in by Don-vip, 8 years ago

see #11390 - Java 8: use List.sort(Comparator) instead of Collections.sort(list, Comparator)
  • Property svn:eol-style set to native
File size: 12.9 KB
Line 
1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.actions;
3
4import static org.openstreetmap.josm.tools.I18n.tr;
5
6import java.awt.Component;
7import java.awt.Dimension;
8import java.awt.GraphicsEnvironment;
9import java.awt.GridBagLayout;
10import java.awt.Insets;
11import java.awt.event.ActionEvent;
12import java.awt.event.KeyEvent;
13import java.util.ArrayList;
14import java.util.Collection;
15import java.util.HashSet;
16import java.util.List;
17import java.util.Set;
18
19import javax.swing.AbstractAction;
20import javax.swing.BorderFactory;
21import javax.swing.Box;
22import javax.swing.JButton;
23import javax.swing.JCheckBox;
24import javax.swing.JLabel;
25import javax.swing.JList;
26import javax.swing.JOptionPane;
27import javax.swing.JPanel;
28import javax.swing.JScrollPane;
29import javax.swing.JSeparator;
30
31import org.openstreetmap.josm.Main;
32import org.openstreetmap.josm.command.PurgeCommand;
33import org.openstreetmap.josm.data.osm.DataSet;
34import org.openstreetmap.josm.data.osm.Node;
35import org.openstreetmap.josm.data.osm.OsmPrimitive;
36import org.openstreetmap.josm.data.osm.Relation;
37import org.openstreetmap.josm.data.osm.RelationMember;
38import org.openstreetmap.josm.data.osm.Way;
39import org.openstreetmap.josm.gui.ConditionalOptionPaneUtil;
40import org.openstreetmap.josm.gui.OsmPrimitivRenderer;
41import org.openstreetmap.josm.gui.help.HelpUtil;
42import org.openstreetmap.josm.gui.layer.OsmDataLayer;
43import org.openstreetmap.josm.tools.GBC;
44import org.openstreetmap.josm.tools.ImageProvider;
45import org.openstreetmap.josm.tools.Shortcut;
46
47/**
48 * The action to purge the selected primitives, i.e. remove them from the
49 * data layer, or remove their content and make them incomplete.
50 *
51 * This means, the deleted flag is not affected and JOSM simply forgets
52 * about these primitives.
53 *
54 * This action is undo-able. In order not to break previous commands in the
55 * undo buffer, we must re-add the identical object (and not semantically
56 * equal ones).
57 */
58public class PurgeAction extends JosmAction {
59
60 /**
61 * Constructs a new {@code PurgeAction}.
62 */
63 public PurgeAction() {
64 /* translator note: other expressions for "purge" might be "forget", "clean", "obliterate", "prune" */
65 super(tr("Purge..."), "purge", tr("Forget objects but do not delete them on server when uploading."),
66 Shortcut.registerShortcut("system:purge", tr("Edit: {0}", tr("Purge")),
67 KeyEvent.VK_P, Shortcut.CTRL_SHIFT),
68 true);
69 putValue("help", HelpUtil.ht("/Action/Purge"));
70 }
71
72 protected transient OsmDataLayer layer;
73 protected JCheckBox cbClearUndoRedo;
74
75 protected transient Set<OsmPrimitive> toPurge;
76 /**
77 * finally, contains all objects that are purged
78 */
79 protected transient Set<OsmPrimitive> toPurgeChecked;
80 /**
81 * Subset of toPurgeChecked. Marks primitives that remain in the
82 * dataset, but incomplete.
83 */
84 protected transient Set<OsmPrimitive> makeIncomplete;
85 /**
86 * Subset of toPurgeChecked. Those that have not been in the selection.
87 */
88 protected transient List<OsmPrimitive> toPurgeAdditionally;
89
90 @Override
91 public void actionPerformed(ActionEvent e) {
92 if (!isEnabled())
93 return;
94
95 Collection<OsmPrimitive> sel = getLayerManager().getEditDataSet().getAllSelected();
96 layer = Main.getLayerManager().getEditLayer();
97
98 toPurge = new HashSet<>(sel);
99 toPurgeAdditionally = new ArrayList<>();
100 toPurgeChecked = new HashSet<>();
101
102 // Add referrer, unless the object to purge is not new
103 // and the parent is a relation
104 Set<OsmPrimitive> toPurgeRecursive = new HashSet<>();
105 while (!toPurge.isEmpty()) {
106
107 for (OsmPrimitive osm: toPurge) {
108 for (OsmPrimitive parent: osm.getReferrers()) {
109 if (toPurge.contains(parent) || toPurgeChecked.contains(parent) || toPurgeRecursive.contains(parent)) {
110 continue;
111 }
112 if (parent instanceof Way || (parent instanceof Relation && osm.isNew())) {
113 toPurgeAdditionally.add(parent);
114 toPurgeRecursive.add(parent);
115 }
116 }
117 toPurgeChecked.add(osm);
118 }
119 toPurge = toPurgeRecursive;
120 toPurgeRecursive = new HashSet<>();
121 }
122
123 makeIncomplete = new HashSet<>();
124
125 // Find the objects that will be incomplete after purging.
126 // At this point, all parents of new to-be-purged primitives are
127 // also to-be-purged and
128 // all parents of not-new to-be-purged primitives are either
129 // to-be-purged or of type relation.
130 TOP:
131 for (OsmPrimitive child : toPurgeChecked) {
132 if (child.isNew()) {
133 continue;
134 }
135 for (OsmPrimitive parent : child.getReferrers()) {
136 if (parent instanceof Relation && !toPurgeChecked.contains(parent)) {
137 makeIncomplete.add(child);
138 continue TOP;
139 }
140 }
141 }
142
143 // Add untagged way nodes. Do not add nodes that have other
144 // referrers not yet to-be-purged.
145 if (Main.pref.getBoolean("purge.add_untagged_waynodes", true)) {
146 Set<OsmPrimitive> wayNodes = new HashSet<>();
147 for (OsmPrimitive osm : toPurgeChecked) {
148 if (osm instanceof Way) {
149 Way w = (Way) osm;
150 NODE:
151 for (Node n : w.getNodes()) {
152 if (n.isTagged() || toPurgeChecked.contains(n)) {
153 continue;
154 }
155 for (OsmPrimitive ref : n.getReferrers()) {
156 if (ref != w && !toPurgeChecked.contains(ref)) {
157 continue NODE;
158 }
159 }
160 wayNodes.add(n);
161 }
162 }
163 }
164 toPurgeChecked.addAll(wayNodes);
165 toPurgeAdditionally.addAll(wayNodes);
166 }
167
168 if (Main.pref.getBoolean("purge.add_relations_with_only_incomplete_members", true)) {
169 Set<Relation> relSet = new HashSet<>();
170 for (OsmPrimitive osm : toPurgeChecked) {
171 for (OsmPrimitive parent : osm.getReferrers()) {
172 if (parent instanceof Relation
173 && !(toPurgeChecked.contains(parent))
174 && hasOnlyIncompleteMembers((Relation) parent, toPurgeChecked, relSet)) {
175 relSet.add((Relation) parent);
176 }
177 }
178 }
179
180 /**
181 * Add higher level relations (list gets extended while looping over it)
182 */
183 List<Relation> relLst = new ArrayList<>(relSet);
184 for (int i = 0; i < relLst.size(); ++i) { // foreach loop not applicable since list gets extended while looping over it
185 for (OsmPrimitive parent : relLst.get(i).getReferrers()) {
186 if (!(toPurgeChecked.contains(parent))
187 && hasOnlyIncompleteMembers((Relation) parent, toPurgeChecked, relLst)) {
188 relLst.add((Relation) parent);
189 }
190 }
191 }
192 relSet = new HashSet<>(relLst);
193 toPurgeChecked.addAll(relSet);
194 toPurgeAdditionally.addAll(relSet);
195 }
196
197 boolean modified = false;
198 for (OsmPrimitive osm : toPurgeChecked) {
199 if (osm.isModified()) {
200 modified = true;
201 break;
202 }
203 }
204
205 boolean clearUndoRedo = false;
206
207 if (!GraphicsEnvironment.isHeadless()) {
208 final boolean answer = ConditionalOptionPaneUtil.showConfirmationDialog(
209 "purge", Main.parent, buildPanel(modified), tr("Confirm Purging"),
210 JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE, JOptionPane.OK_OPTION);
211 if (!answer)
212 return;
213
214 clearUndoRedo = cbClearUndoRedo.isSelected();
215 Main.pref.put("purge.clear_undo_redo", clearUndoRedo);
216 }
217
218 Main.main.undoRedo.add(new PurgeCommand(Main.getLayerManager().getEditLayer(), toPurgeChecked, makeIncomplete));
219
220 if (clearUndoRedo) {
221 Main.main.undoRedo.clean();
222 getLayerManager().getEditDataSet().clearSelectionHistory();
223 }
224 }
225
226 private JPanel buildPanel(boolean modified) {
227 JPanel pnl = new JPanel(new GridBagLayout());
228
229 pnl.add(Box.createRigidArea(new Dimension(400, 0)), GBC.eol().fill(GBC.HORIZONTAL));
230
231 pnl.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
232 pnl.add(new JLabel("<html>"+
233 tr("This operation makes JOSM forget the selected objects.<br> " +
234 "They will be removed from the layer, but <i>not</i> deleted<br> " +
235 "on the server when uploading.")+"</html>",
236 ImageProvider.get("purge"), JLabel.LEFT), GBC.eol().fill(GBC.HORIZONTAL));
237
238 if (!toPurgeAdditionally.isEmpty()) {
239 pnl.add(new JSeparator(), GBC.eol().fill(GBC.HORIZONTAL).insets(0, 5, 0, 5));
240 pnl.add(new JLabel("<html>"+
241 tr("The following dependent objects will be purged<br> " +
242 "in addition to the selected objects:")+"</html>",
243 ImageProvider.get("warning-small"), JLabel.LEFT), GBC.eol().fill(GBC.HORIZONTAL));
244
245 toPurgeAdditionally.sort((o1, o2) -> {
246 int type = o2.getType().compareTo(o1.getType());
247 if (type != 0)
248 return type;
249 return Long.compare(o1.getUniqueId(), o2.getUniqueId());
250 });
251 JList<OsmPrimitive> list = new JList<>(toPurgeAdditionally.toArray(new OsmPrimitive[toPurgeAdditionally.size()]));
252 /* force selection to be active for all entries */
253 list.setCellRenderer(new OsmPrimitivRenderer() {
254 @Override
255 public Component getListCellRendererComponent(JList<? extends OsmPrimitive> list,
256 OsmPrimitive value,
257 int index,
258 boolean isSelected,
259 boolean cellHasFocus) {
260 return super.getListCellRendererComponent(list, value, index, true, false);
261 }
262 });
263 JScrollPane scroll = new JScrollPane(list);
264 scroll.setPreferredSize(new Dimension(250, 300));
265 scroll.setMinimumSize(new Dimension(250, 300));
266 pnl.add(scroll, GBC.std().fill(GBC.BOTH).weight(1.0, 1.0));
267
268 JButton addToSelection = new JButton(new AbstractAction() {
269 {
270 putValue(SHORT_DESCRIPTION, tr("Add to selection"));
271 putValue(SMALL_ICON, ImageProvider.get("dialogs", "select"));
272 }
273
274 @Override
275 public void actionPerformed(ActionEvent e) {
276 layer.data.addSelected(toPurgeAdditionally);
277 }
278 });
279 addToSelection.setMargin(new Insets(0, 0, 0, 0));
280 pnl.add(addToSelection, GBC.eol().anchor(GBC.SOUTHWEST).weight(0.0, 1.0).insets(2, 0, 0, 3));
281 }
282
283 if (modified) {
284 pnl.add(new JSeparator(), GBC.eol().fill(GBC.HORIZONTAL).insets(0, 5, 0, 5));
285 pnl.add(new JLabel("<html>"+tr("Some of the objects are modified.<br> " +
286 "Proceed, if these changes should be discarded."+"</html>"),
287 ImageProvider.get("warning-small"), JLabel.LEFT),
288 GBC.eol().fill(GBC.HORIZONTAL));
289 }
290
291 cbClearUndoRedo = new JCheckBox(tr("Clear Undo/Redo buffer"));
292 cbClearUndoRedo.setSelected(Main.pref.getBoolean("purge.clear_undo_redo", false));
293
294 pnl.add(new JSeparator(), GBC.eol().fill(GBC.HORIZONTAL).insets(0, 5, 0, 5));
295 pnl.add(cbClearUndoRedo, GBC.eol());
296 return pnl;
297 }
298
299 @Override
300 protected void updateEnabledState() {
301 DataSet ds = getLayerManager().getEditDataSet();
302 if (ds == null) {
303 setEnabled(false);
304 } else {
305 setEnabled(!ds.selectionEmpty());
306 }
307 }
308
309 @Override
310 protected void updateEnabledState(Collection<? extends OsmPrimitive> selection) {
311 setEnabled(selection != null && !selection.isEmpty());
312 }
313
314 private static boolean hasOnlyIncompleteMembers(
315 Relation r, Collection<OsmPrimitive> toPurge, Collection<? extends OsmPrimitive> moreToPurge) {
316 for (RelationMember m : r.getMembers()) {
317 if (!m.getMember().isIncomplete() && !toPurge.contains(m.getMember()) && !moreToPurge.contains(m.getMember()))
318 return false;
319 }
320 return true;
321 }
322}
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