source: josm/trunk/src/org/openstreetmap/josm/gui/dialogs/LayerListDialog.java@ 1023

Last change on this file since 1023 was 1023, checked in by stoecker, 16 years ago

close bug #1622. Keyboard shortcuts and specific OS handling
  • Property svn:eol-style set to native
File size: 10.4 KB
Line 
1// License: GPL. Copyright 2007 by Immanuel Scholz and others
2package org.openstreetmap.josm.gui.dialogs;
3
4import static org.openstreetmap.josm.tools.I18n.tr;
5
6import java.awt.BorderLayout;
7import java.awt.Component;
8import java.awt.GridLayout;
9import java.awt.Point;
10import java.awt.event.ActionEvent;
11import java.awt.event.ActionListener;
12import java.awt.event.KeyEvent;
13import java.awt.event.MouseAdapter;
14import java.awt.event.MouseEvent;
15import java.util.Collection;
16
17import javax.swing.AbstractAction;
18import javax.swing.Action;
19import javax.swing.DefaultListCellRenderer;
20import javax.swing.DefaultListModel;
21import javax.swing.Icon;
22import javax.swing.JLabel;
23import javax.swing.JList;
24import javax.swing.JOptionPane;
25import javax.swing.JPanel;
26import javax.swing.JScrollPane;
27import javax.swing.ListSelectionModel;
28import javax.swing.UIManager;
29import javax.swing.event.ListSelectionEvent;
30import javax.swing.event.ListSelectionListener;
31
32import org.openstreetmap.josm.Main;
33import org.openstreetmap.josm.gui.MapFrame;
34import org.openstreetmap.josm.gui.MapView;
35import org.openstreetmap.josm.gui.SideButton;
36import org.openstreetmap.josm.gui.layer.Layer;
37import org.openstreetmap.josm.gui.layer.OsmDataLayer;
38import org.openstreetmap.josm.gui.layer.Layer.LayerChangeListener;
39import org.openstreetmap.josm.tools.DontShowAgainInfo;
40import org.openstreetmap.josm.tools.ImageProvider;
41import org.openstreetmap.josm.tools.ImageProvider.OverlayPosition;
42import org.openstreetmap.josm.tools.ShortCut;
43
44/**
45 * A component that manages the list of all layers and react to selection changes
46 * by setting the active layer in the mapview.
47 *
48 * @author imi
49 */
50public class LayerListDialog extends ToggleDialog implements LayerChangeListener {
51
52 /**
53 * The last layerlist created. Used to update the list in the Show/Hide and Delete actions.
54 * TODO: Replace with Listener-Pattern.
55 */
56 static JList instance;
57 private JScrollPane listScrollPane;
58
59 public final static class DeleteLayerAction extends AbstractAction {
60
61 private final Layer layer;
62
63 public DeleteLayerAction(Layer layer) {
64 super(tr("Delete"), ImageProvider.get("dialogs", "delete"));
65 putValue(SHORT_DESCRIPTION, tr("Delete the selected layer."));
66 putValue("help", "Action/LayerDelete");
67 this.layer = layer;
68 }
69
70 public void actionPerformed(ActionEvent e) {
71 int sel = instance.getSelectedIndex();
72 Layer l = layer != null ? layer : (Layer)instance.getSelectedValue();
73 if(l == null)
74 return;
75 if (l instanceof OsmDataLayer)
76 {
77 if (((OsmDataLayer)l).isModified())
78 {
79 if(JOptionPane.showConfirmDialog(instance, tr("There are unsaved changes. Delete the layer anwyay?"),
80 tr("Unsaved Changes"), JOptionPane.YES_NO_OPTION) != JOptionPane.YES_OPTION)
81 return;
82 }
83 else if(!DontShowAgainInfo.show("delete_layer", tr("Do you really want to delete the whole layer?"), false))
84 return;
85 }
86 Main.main.removeLayer(l);
87 if (sel >= instance.getModel().getSize())
88 sel = instance.getModel().getSize()-1;
89 if (instance.getSelectedValue() == null)
90 instance.setSelectedIndex(sel);
91 if (Main.map != null)
92 Main.map.mapView.setActiveLayer((Layer)instance.getSelectedValue());
93 }
94 }
95
96 public final static class ShowHideLayerAction extends AbstractAction {
97 private final Layer layer;
98
99 public ShowHideLayerAction(Layer layer) {
100 super(tr("Show/Hide"), ImageProvider.get("dialogs", "showhide"));
101 putValue(SHORT_DESCRIPTION, tr("Toggle visible state of the selected layer."));
102 putValue("help", "Action/LayerShowHide");
103 this.layer = layer;
104 }
105
106 public void actionPerformed(ActionEvent e) {
107 Layer l = layer == null ? (Layer)instance.getSelectedValue() : layer;
108 if(l == null)
109 return;
110 l.visible = !l.visible;
111 Main.map.mapView.repaint();
112 instance.repaint();
113 }
114 }
115
116 public final static class ShowHideMarkerText extends AbstractAction {
117 private final Layer layer;
118
119 public ShowHideMarkerText(Layer layer) {
120 super(tr("Show/Hide Text/Icons"), ImageProvider.get("dialogs", "showhide"));
121 putValue(SHORT_DESCRIPTION, tr("Toggle visible state of the marker text and icons."));
122 putValue("help", "Action/ShowHideTextIcons");
123 this.layer = layer;
124 }
125
126 public void actionPerformed(ActionEvent e) {
127 Layer l = layer == null ? (Layer)instance.getSelectedValue() : layer;
128 String current = Main.pref.get("marker.show "+l.name,"show");
129 Main.pref.put("marker.show "+l.name, current.equalsIgnoreCase("show") ? "hide" : "show");
130 Main.map.mapView.repaint();
131 instance.repaint();
132 }
133 }
134
135 /**
136 * The data model for the list component.
137 */
138 DefaultListModel model = new DefaultListModel();
139 /**
140 * The merge action. This is only called, if the current selection and its
141 * item below are editable datasets and the merge button is clicked.
142 */
143 private final SideButton mergeButton;
144 /**
145 * Button for moving layer up.
146 */
147 private final SideButton upButton;
148 /**
149 * Button for moving layer down.
150 */
151 private final SideButton downButton;
152 /**
153 * Button for delete layer.
154 */
155 private Action deleteAction = new DeleteLayerAction(null);
156
157 /**
158 * Create an layerlist and attach it to the given mapView.
159 */
160 public LayerListDialog(MapFrame mapFrame) {
161 super(tr("Layers"), "layerlist", tr("Open a list of all loaded layers."),
162 ShortCut.registerShortCut("subwindow:layers", tr("Toggle layer window"), KeyEvent.VK_L, ShortCut.GROUP_LAYER), 100);
163 instance = new JList(model);
164 listScrollPane = new JScrollPane(instance);
165 add(listScrollPane, BorderLayout.CENTER);
166 instance.setBackground(UIManager.getColor("Button.background"));
167 instance.setCellRenderer(new DefaultListCellRenderer(){
168 @Override public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
169 Layer layer = (Layer)value;
170 JLabel label = (JLabel)super.getListCellRendererComponent(list,
171 layer.name, index, isSelected, cellHasFocus);
172 Icon icon = layer.getIcon();
173 if (!layer.visible)
174 icon = ImageProvider.overlay(icon, "overlay/invisible", OverlayPosition.SOUTHEAST);
175 label.setIcon(icon);
176 label.setToolTipText(layer.getToolTipText());
177 return label;
178 }
179 });
180
181 final MapView mapView = mapFrame.mapView;
182
183 Collection<Layer> data = mapView.getAllLayers();
184 for (Layer l : data)
185 model.addElement(l);
186
187 instance.setSelectedValue(mapView.getActiveLayer(), true);
188 instance.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
189 instance.addListSelectionListener(new ListSelectionListener(){
190 public void valueChanged(ListSelectionEvent e) {
191 if (instance.getModel().getSize() == 0)
192 return;
193 if (instance.getSelectedIndex() == -1)
194 instance.setSelectedIndex(e.getFirstIndex());
195 mapView.setActiveLayer((Layer)instance.getSelectedValue());
196 }
197 });
198 Layer.listeners.add(this);
199
200 instance.addMouseListener(new MouseAdapter(){
201 private void openPopup(MouseEvent e) {
202 Point p = listScrollPane.getMousePosition();
203 if (p == null)
204 return; // user is faster than swing with mouse movement
205 int index = instance.locationToIndex(e.getPoint());
206 Layer layer = (Layer)instance.getModel().getElementAt(index);
207 LayerListPopup menu = new LayerListPopup(instance, layer);
208 menu.show(listScrollPane, p.x, p.y-3);
209 }
210 @Override public void mousePressed(MouseEvent e) {
211 if (e.isPopupTrigger())
212 openPopup(e);
213 }
214 @Override public void mouseReleased(MouseEvent e) {
215 if (e.isPopupTrigger())
216 openPopup(e);
217 }
218 @Override public void mouseClicked(MouseEvent e) {
219 if (e.getClickCount() == 2) {
220 int index = instance.locationToIndex(e.getPoint());
221 Layer layer = (Layer)instance.getModel().getElementAt(index);
222 String current = Main.pref.get("marker.show "+layer.name,"show");
223 Main.pref.put("marker.show "+layer.name, current.equalsIgnoreCase("show") ? "hide" : "show");
224 layer.visible = !layer.visible;
225 Main.map.mapView.repaint();
226 instance.repaint();
227 }
228 }
229 });
230
231
232 // Buttons
233 JPanel buttonPanel = new JPanel(new GridLayout(1, 5));
234
235 ActionListener upDown = new ActionListener(){
236 public void actionPerformed(ActionEvent e) {
237 Layer l = (Layer)instance.getSelectedValue();
238 int sel = instance.getSelectedIndex();
239 int selDest = e.getActionCommand().equals("up") ? sel-1 : sel+1;
240 mapView.moveLayer(l, selDest);
241 model.set(sel, model.get(selDest));
242 model.set(selDest, l);
243 instance.setSelectedIndex(selDest);
244 updateButtonEnabled();
245 mapView.repaint();
246 }
247 };
248
249 upButton = new SideButton("up", "LayerList", tr("Move the selected layer one row up."), upDown);
250 buttonPanel.add(upButton);
251
252 downButton = new SideButton("down", "LayerList", tr("Move the selected layer one row down."), upDown);
253 buttonPanel.add(downButton);
254
255 buttonPanel.add(new SideButton(new ShowHideLayerAction(null)));
256 buttonPanel.add(new SideButton(deleteAction));
257
258 mergeButton = new SideButton("Merge", "mergedown", "LayerList", tr("Merge the layer directly below into the selected layer."),
259 new ActionListener(){
260 public void actionPerformed(ActionEvent e) {
261 Layer lTo = (Layer)instance.getSelectedValue();
262 Layer lFrom = (Layer)model.get(instance.getSelectedIndex()+1);
263 lTo.mergeFrom(lFrom);
264 mapView.removeLayer(lFrom);
265 updateButtonEnabled();
266 mapView.repaint();
267 }
268 });
269 mergeButton.setText(null);
270 buttonPanel.add(mergeButton);
271
272 add(buttonPanel, BorderLayout.SOUTH);
273
274 updateButtonEnabled();
275 }
276
277 /**
278 * Updates the state of the Buttons.
279 */
280 void updateButtonEnabled() {
281 int sel = instance.getSelectedIndex();
282 Layer l = (Layer)instance.getSelectedValue();
283 boolean enable = model.getSize() > 1;
284 enable = enable && sel < model.getSize()-1;
285 enable = enable && ((Layer)model.get(sel+1)).isMergable(l);
286 mergeButton.setEnabled(enable);
287 upButton.setEnabled(sel > 0);
288 downButton.setEnabled(sel >= 0 && sel < model.getSize()-1);
289 deleteAction.setEnabled(!model.isEmpty());
290 }
291
292 /**
293 * Add the new layer to the list.
294 */
295 public void layerAdded(Layer newLayer) {
296 model.add(model.size(), newLayer);
297 updateButtonEnabled();
298 }
299
300 public void layerRemoved(Layer oldLayer) {
301 model.removeElement(oldLayer);
302 if (model.isEmpty()) {
303 Layer.listeners.remove(this);
304 return;
305 }
306 if (instance.getSelectedIndex() == -1)
307 instance.setSelectedIndex(0);
308 updateButtonEnabled();
309 }
310
311 /**
312 * If the newLayer is not the actual selection, select it.
313 */
314 public void activeLayerChange(Layer oldLayer, Layer newLayer) {
315 if (newLayer != instance.getSelectedValue())
316 instance.setSelectedValue(newLayer, true);
317 updateButtonEnabled();
318 }
319}
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