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1 | /* | |
2 | * Copyright (c) 2005, the JUNG Project and the Regents of the University | |
3 | * of California | |
4 | * All rights reserved. | |
5 | * | |
6 | * This software is open-source under the BSD license; see either | |
7 | * "license.txt" or | |
8 | * http://jung.sourceforge.net/license.txt for a description. | |
9 | * Created on Mar 8, 2005 | |
10 | * | |
11 | */ | |
12 | package edu.uci.ics.jung.visualization.control; | |
13 | ||
14 | import java.awt.Dimension; | |
15 | import java.awt.ItemSelectable; | |
16 | import java.awt.event.InputEvent; | |
17 | import java.awt.event.ItemEvent; | |
18 | import java.awt.event.ItemListener; | |
19 | ||
20 | import javax.swing.ButtonGroup; | |
21 | import javax.swing.Icon; | |
22 | import javax.swing.JComboBox; | |
23 | import javax.swing.JMenu; | |
24 | import javax.swing.JRadioButtonMenuItem; | |
25 | import javax.swing.event.EventListenerList; | |
26 | import javax.swing.plaf.basic.BasicIconFactory; | |
27 | ||
28 | import edu.uci.ics.jung.visualization.SettableVertexLocationFunction; | |
29 | ||
30 | ||
31 | /** | |
32 | * | |
33 | * | |
34 | * @author Tom Nelson | |
35 | */ | |
36 | public class EditingModalGraphMouse extends PluggableGraphMouse | |
37 | implements ModalGraphMouse, ItemSelectable { | |
38 | ||
39 | /** | |
40 | * used by the scaling plugins for zoom in | |
41 | */ | |
42 | protected float in; | |
43 | /** | |
44 | * used by the scaling plugins for zoom out | |
45 | */ | |
46 | protected float out; | |
47 | /** | |
48 | * a listener for mode changes | |
49 | */ | |
50 | protected ItemListener modeListener; | |
51 | /** | |
52 | * a JComboBox control available to set the mode | |
53 | */ | |
54 | protected JComboBox modeBox; | |
55 | /** | |
56 | * a menu available to set the mode | |
57 | */ | |
58 | protected JMenu modeMenu; | |
59 | /** | |
60 | * the current mode | |
61 | */ | |
62 | protected Mode mode; | |
63 | /** | |
64 | * listeners for mode changes | |
65 | */ | |
66 | 0 | protected EventListenerList listenerList = new EventListenerList(); |
67 | ||
68 | protected GraphMousePlugin pickingPlugin; | |
69 | protected GraphMousePlugin translatingPlugin; | |
70 | protected GraphMousePlugin animatedPickingPlugin; | |
71 | protected GraphMousePlugin scalingPlugin; | |
72 | protected GraphMousePlugin rotatingPlugin; | |
73 | protected GraphMousePlugin shearingPlugin; | |
74 | protected GraphMousePlugin editingPlugin; | |
75 | ||
76 | /** | |
77 | * create an instance with default values | |
78 | * | |
79 | */ | |
80 | public EditingModalGraphMouse() { | |
81 | 0 | this(1.1f, 1/1.1f); |
82 | 0 | } |
83 | ||
84 | /** | |
85 | * create an instance with passed values | |
86 | * @param in override value for scale in | |
87 | * @param out override value for scale out | |
88 | */ | |
89 | 0 | public EditingModalGraphMouse(float in, float out) { |
90 | 0 | this.in = in; |
91 | 0 | this.out = out; |
92 | 0 | loadPlugins(); |
93 | 0 | } |
94 | ||
95 | /** | |
96 | * create the plugins, and load the plugins for TRANSFORMING mode | |
97 | * | |
98 | */ | |
99 | protected void loadPlugins() { | |
100 | 0 | pickingPlugin = new PickingGraphMousePlugin(); |
101 | 0 | animatedPickingPlugin = new AnimatedPickingGraphMousePlugin(); |
102 | 0 | translatingPlugin = new TranslatingGraphMousePlugin(InputEvent.BUTTON1_MASK); |
103 | 0 | scalingPlugin = new ScalingGraphMousePlugin(new CrossoverScalingControl(), 0, in, out); |
104 | 0 | rotatingPlugin = new RotatingGraphMousePlugin(); |
105 | 0 | shearingPlugin = new ShearingGraphMousePlugin(); |
106 | 0 | editingPlugin = new EditingGraphMousePlugin(); |
107 | ||
108 | 0 | add(scalingPlugin); |
109 | 0 | setMode(Mode.EDITING); |
110 | 0 | } |
111 | public void setVertexLocations(SettableVertexLocationFunction vertexLocations) { | |
112 | 0 | ((EditingGraphMousePlugin)editingPlugin).setVertexLocations(vertexLocations); |
113 | 0 | } |
114 | ||
115 | /** | |
116 | * setter for the Mode. | |
117 | */ | |
118 | public void setMode(Mode mode) { | |
119 | 0 | if(this.mode != mode) { |
120 | 0 | fireItemStateChanged(new ItemEvent(this, ItemEvent.ITEM_STATE_CHANGED, |
121 | this.mode, ItemEvent.DESELECTED)); | |
122 | 0 | this.mode = mode; |
123 | 0 | if(mode == Mode.TRANSFORMING) { |
124 | 0 | setTransformingMode(); |
125 | 0 | } else if(mode == Mode.PICKING) { |
126 | 0 | setPickingMode(); |
127 | 0 | } else if(mode == Mode.EDITING) { |
128 | 0 | setEditingMode(); |
129 | } | |
130 | 0 | if(modeBox != null) { |
131 | 0 | modeBox.setSelectedItem(mode); |
132 | } | |
133 | 0 | fireItemStateChanged(new ItemEvent(this, ItemEvent.ITEM_STATE_CHANGED, mode, ItemEvent.SELECTED)); |
134 | } | |
135 | 0 | } |
136 | /* (non-Javadoc) | |
137 | * @see edu.uci.ics.jung.visualization.control.ModalGraphMouse#setPickingMode() | |
138 | */ | |
139 | protected void setPickingMode() { | |
140 | 0 | remove(translatingPlugin); |
141 | 0 | remove(rotatingPlugin); |
142 | 0 | remove(shearingPlugin); |
143 | 0 | remove(editingPlugin); |
144 | 0 | add(pickingPlugin); |
145 | 0 | add(animatedPickingPlugin); |
146 | 0 | } |
147 | ||
148 | /* (non-Javadoc) | |
149 | * @see edu.uci.ics.jung.visualization.control.ModalGraphMouse#setTransformingMode() | |
150 | */ | |
151 | protected void setTransformingMode() { | |
152 | 0 | remove(pickingPlugin); |
153 | 0 | remove(animatedPickingPlugin); |
154 | 0 | remove(editingPlugin); |
155 | 0 | add(translatingPlugin); |
156 | 0 | add(rotatingPlugin); |
157 | 0 | add(shearingPlugin); |
158 | 0 | } |
159 | ||
160 | protected void setEditingMode() { | |
161 | 0 | remove(pickingPlugin); |
162 | 0 | remove(animatedPickingPlugin); |
163 | 0 | remove(translatingPlugin); |
164 | 0 | remove(rotatingPlugin); |
165 | 0 | remove(shearingPlugin); |
166 | 0 | add(editingPlugin); |
167 | 0 | } |
168 | ||
169 | /** | |
170 | * @param zoomAtMouse The zoomAtMouse to set. | |
171 | */ | |
172 | public void setZoomAtMouse(boolean zoomAtMouse) { | |
173 | 0 | ((ScalingGraphMousePlugin) scalingPlugin).setZoomAtMouse(zoomAtMouse); |
174 | 0 | } |
175 | ||
176 | /** | |
177 | * listener to set the mode from an external event source | |
178 | */ | |
179 | class ModeListener implements ItemListener { | |
180 | public void itemStateChanged(ItemEvent e) { | |
181 | setMode((Mode) e.getItem()); | |
182 | } | |
183 | } | |
184 | ||
185 | /* (non-Javadoc) | |
186 | * @see edu.uci.ics.jung.visualization.control.ModalGraphMouse#getModeListener() | |
187 | */ | |
188 | public ItemListener getModeListener() { | |
189 | 0 | if (modeListener == null) { |
190 | 0 | modeListener = new ModeListener(); |
191 | } | |
192 | 0 | return modeListener; |
193 | } | |
194 | ||
195 | /** | |
196 | * @return Returns the modeBox. | |
197 | */ | |
198 | public JComboBox getModeComboBox() { | |
199 | 0 | if(modeBox == null) { |
200 | 0 | modeBox = new JComboBox(new Mode[]{Mode.TRANSFORMING, Mode.PICKING, Mode.EDITING}); |
201 | 0 | modeBox.addItemListener(getModeListener()); |
202 | } | |
203 | 0 | modeBox.setSelectedItem(mode); |
204 | 0 | return modeBox; |
205 | } | |
206 | ||
207 | /** | |
208 | * create (if necessary) and return a menu that will change | |
209 | * the mode | |
210 | * @return the menu | |
211 | */ | |
212 | public JMenu getModeMenu() { | |
213 | 0 | if(modeMenu == null) { |
214 | 0 | modeMenu = new JMenu();// { |
215 | 0 | Icon icon = BasicIconFactory.getMenuArrowIcon(); |
216 | 0 | modeMenu.setIcon(BasicIconFactory.getMenuArrowIcon()); |
217 | 0 | modeMenu.setPreferredSize(new Dimension(icon.getIconWidth()+10, |
218 | icon.getIconHeight()+10)); | |
219 | ||
220 | 0 | final JRadioButtonMenuItem transformingButton = |
221 | new JRadioButtonMenuItem(Mode.TRANSFORMING.toString()); | |
222 | 0 | transformingButton.addItemListener(new ItemListener() { |
223 | public void itemStateChanged(ItemEvent e) { | |
224 | if(e.getStateChange() == ItemEvent.SELECTED) { | |
225 | setMode(Mode.TRANSFORMING); | |
226 | } | |
227 | }}); | |
228 | ||
229 | 0 | final JRadioButtonMenuItem pickingButton = |
230 | new JRadioButtonMenuItem(Mode.PICKING.toString()); | |
231 | 0 | pickingButton.addItemListener(new ItemListener() { |
232 | public void itemStateChanged(ItemEvent e) { | |
233 | if(e.getStateChange() == ItemEvent.SELECTED) { | |
234 | setMode(Mode.PICKING); | |
235 | } | |
236 | }}); | |
237 | ||
238 | 0 | final JRadioButtonMenuItem editingButton = |
239 | new JRadioButtonMenuItem(Mode.EDITING.toString()); | |
240 | 0 | editingButton.addItemListener(new ItemListener() { |
241 | public void itemStateChanged(ItemEvent e) { | |
242 | if(e.getStateChange() == ItemEvent.SELECTED) { | |
243 | setMode(Mode.EDITING); | |
244 | } | |
245 | }}); | |
246 | ||
247 | 0 | ButtonGroup radio = new ButtonGroup(); |
248 | 0 | radio.add(transformingButton); |
249 | 0 | radio.add(pickingButton); |
250 | 0 | radio.add(editingButton); |
251 | 0 | transformingButton.setSelected(true); |
252 | 0 | modeMenu.add(transformingButton); |
253 | 0 | modeMenu.add(pickingButton); |
254 | 0 | modeMenu.add(editingButton); |
255 | 0 | modeMenu.setToolTipText("Menu for setting Mouse Mode"); |
256 | 0 | addItemListener(new ItemListener() { |
257 | public void itemStateChanged(ItemEvent e) { | |
258 | if(e.getStateChange() == ItemEvent.SELECTED) { | |
259 | if(e.getItem() == Mode.TRANSFORMING) { | |
260 | transformingButton.setSelected(true); | |
261 | } else if(e.getItem() == Mode.PICKING) { | |
262 | pickingButton.setSelected(true); | |
263 | } else if(e.getItem() == Mode.EDITING) { | |
264 | editingButton.setSelected(true); | |
265 | } | |
266 | } | |
267 | }}); | |
268 | } | |
269 | 0 | return modeMenu; |
270 | } | |
271 | ||
272 | /** | |
273 | * add a listener for mode changes | |
274 | */ | |
275 | public void addItemListener(ItemListener aListener) { | |
276 | 0 | listenerList.add(ItemListener.class,aListener); |
277 | 0 | } |
278 | ||
279 | /** | |
280 | * remove a listener for mode changes | |
281 | */ | |
282 | public void removeItemListener(ItemListener aListener) { | |
283 | 0 | listenerList.remove(ItemListener.class,aListener); |
284 | 0 | } |
285 | ||
286 | /** | |
287 | * Returns an array of all the <code>ItemListener</code>s added | |
288 | * to this JComboBox with addItemListener(). | |
289 | * | |
290 | * @return all of the <code>ItemListener</code>s added or an empty | |
291 | * array if no listeners have been added | |
292 | * @since 1.4 | |
293 | */ | |
294 | public ItemListener[] getItemListeners() { | |
295 | 0 | return (ItemListener[])listenerList.getListeners(ItemListener.class); |
296 | } | |
297 | ||
298 | public Object[] getSelectedObjects() { | |
299 | 0 | if ( mode == null ) |
300 | 0 | return new Object[0]; |
301 | else { | |
302 | 0 | Object result[] = new Object[1]; |
303 | 0 | result[0] = mode; |
304 | 0 | return result; |
305 | } | |
306 | } | |
307 | ||
308 | /** | |
309 | * Notifies all listeners that have registered interest for | |
310 | * notification on this event type. | |
311 | * @param e the event of interest | |
312 | * | |
313 | * @see EventListenerList | |
314 | */ | |
315 | protected void fireItemStateChanged(ItemEvent e) { | |
316 | // Guaranteed to return a non-null array | |
317 | 0 | Object[] listeners = listenerList.getListenerList(); |
318 | // Process the listeners last to first, notifying | |
319 | // those that are interested in this event | |
320 | 0 | for ( int i = listeners.length-2; i>=0; i-=2 ) { |
321 | 0 | if ( listeners[i]==ItemListener.class ) { |
322 | 0 | ((ItemListener)listeners[i+1]).itemStateChanged(e); |
323 | } | |
324 | } | |
325 | 0 | } |
326 | } |
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