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17 package org.eclipse.emf.common.ui.celleditor;
18
19
20 import org.eclipse.swt.SWT;
21 import org.eclipse.swt.custom.TableEditor;
22 import org.eclipse.swt.events.KeyEvent;
23 import org.eclipse.swt.events.KeyListener;
24 import org.eclipse.swt.events.MouseEvent;
25 import org.eclipse.swt.events.MouseListener;
26 import org.eclipse.swt.events.SelectionEvent;
27 import org.eclipse.swt.events.SelectionListener;
28 import org.eclipse.swt.graphics.Point;
29 import org.eclipse.swt.graphics.Rectangle;
30 import org.eclipse.swt.widgets.Control;
31 import org.eclipse.swt.widgets.Event;
32 import org.eclipse.swt.widgets.Table;
33 import org.eclipse.swt.widgets.TableItem;
34
35
36
41 public abstract class ExtendedTableEditor
42 extends TableEditor
43 implements KeyListener, MouseListener, SelectionListener
44 {
45 protected Table table;
46 protected TableItem selectedTableItem;
47 protected TableItem editTableItem;
48 protected int editTableItemColumn;
49 boolean isActivating;
50 boolean isDeactivating;
51 boolean isActive;
52
53 public ExtendedTableEditor(Table table)
54 {
55 super(table);
56
57 this.table = table;
58
59 table.addKeyListener(this);
60 table.addMouseListener(this);
61 table.addSelectionListener(this);
62 }
63
64 public void mouseDoubleClick(MouseEvent event)
65 {
66 editTableItem = null;
68 }
69
70 public void mouseDown(MouseEvent event)
71 {
72 editTableItem = null;
73 editTableItemColumn = -1;
74
75 if (event.button == 1)
77 {
78 boolean wasActive = getEditor() != null && !getEditor().isDisposed();
79
80 Point point = new Point(event.x, event.y);
81 TableItem [] tableItems = table.getItems();
82 int columnCount = table.getColumnCount();
83 LOOP: for (int i = table.getTopIndex(); i < tableItems.length; ++i)
84 {
85 for (int j = 0; j < columnCount; ++j)
86 {
87 Rectangle bounds = tableItems[i].getBounds(j);
88 if (bounds.y > event.y)
89 {
90 break LOOP;
91 }
92 else if (bounds.contains(event.x, event.y))
93 {
94 if (j != 0 || !tableItems[i].getImageBounds(0).contains(event.x, event.y))
95 {
96 TableItem tableItem = tableItems[i];
97 if (tableItem == selectedTableItem || wasActive)
98 {
99 if (tableItem != selectedTableItem)
100 {
101 table.setSelection(i);
102 Event selectionEvent = new Event();
103 selectionEvent.widget = table;
104 selectionEvent.item = tableItem;
105 table.notifyListeners(SWT.Selection, selectionEvent);
106 selectedTableItem = tableItem;
107 }
108 editTableItem = tableItems[i];
109 editTableItemColumn = j;
110 }
111 else
112 {
113 TableItem mouseBasedTableItem = table.getItem(point);
114 if (mouseBasedTableItem == null)
115 {
116 table.setSelection(i);
117 Event selectionEvent = new Event();
118 selectionEvent.widget = table;
119 selectionEvent.item = tableItem;
120 table.notifyListeners(SWT.Selection, selectionEvent);
121 selectedTableItem = tableItem;
122 }
123 }
124 }
125
126 break LOOP;
127 }
128 }
129 }
130
131 if (editTableItem == null && wasActive)
132 {
133 dismiss();
134 }
135 }
136 }
137
138 public void dismiss()
139 {
140 setEditor(null, null, -1);
141 }
142
143 public void mouseUp(MouseEvent event)
144 {
145 if (event.button == 1)
147 {
148 TableItem [] tableItems = table.getItems();
149 int columnCount = table.getColumnCount();
150 LOOP: for (int i = table.getTopIndex(); i < tableItems.length; ++i)
151 {
152 for (int j = 0; j < columnCount; ++j)
153 {
154 Rectangle bounds = tableItems[i].getBounds(j);
155 if (bounds.y > event.y)
156 {
157 break LOOP;
158 }
159 else if (bounds.contains(event.x, event.y))
160 {
161 if (j != 0 || !tableItems[i].getImageBounds(0).contains(event.x, event.y))
162 {
163 TableItem tableItem = tableItems[i];
164 if (tableItem == editTableItem)
165 {
166 selectedTableItem = null;
167 table.showSelection();
168 editItem(editTableItem, editTableItemColumn);
169 }
170 }
171
172 break LOOP;
173 }
174 }
175 }
176 }
177 }
178
179 public void widgetDefaultSelected(SelectionEvent event)
180 {
181 widgetSelected(event);
182 }
183
184 public void widgetSelected(SelectionEvent event)
185 {
186 TableItem [] selection = table.getSelection();
187 selectedTableItem = selection.length == 1 ? selection[0] : null;
188 }
189
190 public void keyPressed(KeyEvent event)
191 {
192 }
193
194 public void keyReleased(KeyEvent event)
195 {
196 TableItem [] selection = table.getSelection();
197 selectedTableItem = selection.length == 1 ? selection[0] : null;
198 if (event.character == ' ' && selectedTableItem != null)
199 {
200 editItem(selectedTableItem, 0);
201 selectedTableItem = null;
202 }
203 }
204
205 protected abstract void editItem(TableItem tableItem, int column);
206
207 public void setEditor(Control canvas, TableItem tableItem, int column)
208 {
209 super.setEditor(canvas, tableItem, column);
210 }
211 }
212 |
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