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1
17 package org.eclipse.emf.common.ui.celleditor;
18
19
20 import org.eclipse.swt.SWT;
21 import org.eclipse.swt.custom.TableTree;
22 import org.eclipse.swt.custom.TableTreeEditor;
23 import org.eclipse.swt.custom.TableTreeItem;
24 import org.eclipse.swt.events.KeyEvent;
25 import org.eclipse.swt.events.KeyListener;
26 import org.eclipse.swt.events.MouseEvent;
27 import org.eclipse.swt.events.MouseListener;
28 import org.eclipse.swt.events.SelectionEvent;
29 import org.eclipse.swt.events.SelectionListener;
30 import org.eclipse.swt.graphics.Point;
31 import org.eclipse.swt.graphics.Rectangle;
32 import org.eclipse.swt.widgets.Control;
33 import org.eclipse.swt.widgets.Event;
34 import org.eclipse.swt.widgets.Table;
35 import org.eclipse.swt.widgets.TableItem;
36
37 import org.eclipse.emf.common.ui.viewer.ExtendedTableTreeViewer;
38
39
40
45 public abstract class ExtendedTableTreeEditor
46 extends TableTreeEditor
47 implements KeyListener, MouseListener, SelectionListener
48 {
49 protected Table table;
50 protected TableItem selectedTableItem;
51 protected TableTree tableTree;
52 protected TableTreeItem editTableTreeItem;
53 protected int editTableTreeItemColumn;
54 boolean isActivating;
55 boolean isDeactivating;
56 boolean isActive;
57
58 public ExtendedTableTreeEditor(TableTree tableTree)
59 {
60 super(tableTree);
61
62 this.tableTree = tableTree;
63 this.table = tableTree.getTable();
64
65 table.addKeyListener(this);
66 table.addMouseListener(this);
67 table.addSelectionListener(this);
68 }
69
70 public void mouseDoubleClick(MouseEvent event)
71 {
72 editTableTreeItem = null;
74 }
75
76 public void mouseDown(MouseEvent event)
77 {
78 editTableTreeItem = null;
79 editTableTreeItemColumn = -1;
80
81 if (event.button == 1)
83 {
84 boolean wasActive = getEditor() != null && !getEditor().isDisposed();
85
86 Point point = new Point(event.x, event.y);
87 TableItem [] tableItems = tableTree.getTable().getItems();
88 int columnCount = tableTree.getTable().getColumnCount();
89 LOOP: for (int i = tableTree.getTable().getTopIndex(); i < tableItems.length; ++i)
90 {
91 for (int j = 0; j < columnCount; ++j)
92 {
93 Rectangle bounds = tableItems[i].getBounds(j);
94 if (bounds.y > event.y)
95 {
96 break LOOP;
97 }
98 else if (bounds.contains(event.x, event.y))
99 {
100 if (j != 0 || !tableItems[i].getImageBounds(0).contains(event.x, event.y))
101 {
102 TableItem tableItem = tableItems[i];
103 if (tableItem == selectedTableItem || wasActive)
104 {
105 if (tableItem != selectedTableItem)
106 {
107 table.setSelection(i);
108 Event selectionEvent = new Event();
109 selectionEvent.widget = table;
110 selectionEvent.item = tableItem;
111 table.notifyListeners(SWT.Selection, selectionEvent);
112 selectedTableItem = tableItem;
113 }
114 editTableTreeItem = (TableTreeItem)tableItems[i].getData(ExtendedTableTreeViewer.ITEM_ID);
115 editTableTreeItemColumn = j;
116 }
117 else
118 {
119 TableItem mouseBasedTableItem = table.getItem(point);
120 if (mouseBasedTableItem == null)
121 {
122 table.setSelection(i);
123 Event selectionEvent = new Event();
124 selectionEvent.widget = table;
125 selectionEvent.item = tableItem;
126 table.notifyListeners(SWT.Selection, selectionEvent);
127 selectedTableItem = tableItem;
128 }
129 }
130 }
131
132 break LOOP;
133 }
134 }
135 }
136
137 if (editTableTreeItem == null && wasActive)
138 {
139 dismiss();
140 }
141 }
142 }
143
144 public void dismiss()
145 {
146 setEditor(null, null, -1);
147 }
148
149 public void mouseUp(MouseEvent event)
150 {
151 if (event.button == 1)
153 {
154 TableItem [] tableItems = tableTree.getTable().getItems();
155 int columnCount = tableTree.getTable().getColumnCount();
156 LOOP: for (int i = tableTree.getTable().getTopIndex(); i < tableItems.length; ++i)
157 {
158 for (int j = 0; j < columnCount; ++j)
159 {
160 Rectangle bounds = tableItems[i].getBounds(j);
161 if (bounds.y > event.y)
162 {
163 break LOOP;
164 }
165 else if (bounds.contains(event.x, event.y))
166 {
167 if (j != 0 || !tableItems[i].getImageBounds(0).contains(event.x, event.y))
168 {
169 TableItem tableItem = tableItems[i];
170 TableTreeItem tableTreeItem = (TableTreeItem)tableItems[i].getData(ExtendedTableTreeViewer.ITEM_ID);
171 if (tableTreeItem == editTableTreeItem)
172 {
173 selectedTableItem = null;
174 table.showSelection();
175 editItem(tableItem, editTableTreeItem, editTableTreeItemColumn);
176 }
177 }
178
179 break LOOP;
180 }
181 }
182 }
183 }
184 }
185
186 public void widgetDefaultSelected(SelectionEvent event)
187 {
188 widgetSelected(event);
189 }
190
191 public void widgetSelected(SelectionEvent event)
192 {
193 TableItem [] selection = table.getSelection();
194 selectedTableItem = selection.length == 1 ? selection[0] : null;
195 }
196
197 public void keyPressed(KeyEvent event)
198 {
199 }
200
201 public void keyReleased(KeyEvent event)
202 {
203 TableItem [] selection = table.getSelection();
204 selectedTableItem = selection.length == 1 ? selection[0] : null;
205 if (event.character == ' ' && selectedTableItem != null)
206 {
207 editItem(selectedTableItem, (TableTreeItem)selectedTableItem.getData(ExtendedTableTreeViewer.ITEM_ID), 0);
208 selectedTableItem = null;
209 }
210 }
211
212 protected abstract void editItem(TableItem tableItem, TableTreeItem tableTreeItem, int column);
213
214 public void setEditor(Control canvas, TableTreeItem tableTreeItem, int column)
215 {
216 super.setEditor(canvas, tableTreeItem, column);
217 }
218 }
219 |
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