Mercurial > projects > dwt2
annotate org.eclipse.swt.gtk.linux.x86/src/org/eclipse/swt/custom/TableCursor.d @ 108:b397a43d66d1
Updated swt linux for DMD 1.063 and latest Tango trunk.
| author | Jacob Carlborg <doob@me.com> |
|---|---|
| date | Wed, 25 Aug 2010 23:08:27 +0200 |
| parents | 7a2dd761a8b2 |
| children |
| rev | line source |
|---|---|
| 25 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2008 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module org.eclipse.swt.custom.TableCursor; | |
| 14 | |
| 15 import java.lang.all; | |
| 16 | |
| 17 | |
| 18 import org.eclipse.swt.SWT; | |
| 19 import org.eclipse.swt.SWTException; | |
| 20 import org.eclipse.swt.events.SelectionEvent; | |
| 21 import org.eclipse.swt.events.SelectionListener; | |
| 22 import org.eclipse.swt.graphics.Color; | |
| 23 import org.eclipse.swt.graphics.GC; | |
| 24 import org.eclipse.swt.graphics.Image; | |
| 25 import org.eclipse.swt.graphics.Point; | |
| 26 import org.eclipse.swt.graphics.Rectangle; | |
| 27 import org.eclipse.swt.widgets.Canvas; | |
| 28 import org.eclipse.swt.widgets.Display; | |
| 29 import org.eclipse.swt.widgets.Event; | |
| 30 import org.eclipse.swt.widgets.Listener; | |
| 31 import org.eclipse.swt.widgets.ScrollBar; | |
| 32 import org.eclipse.swt.widgets.Table; | |
| 33 import org.eclipse.swt.widgets.TableColumn; | |
| 34 import org.eclipse.swt.widgets.TableItem; | |
| 35 import org.eclipse.swt.widgets.TypedListener; | |
| 36 import org.eclipse.swt.widgets.Widget; | |
| 37 | |
| 38 /** | |
| 39 * A TableCursor provides a way for the user to navigate around a Table | |
| 40 * using the keyboard. It also provides a mechanism for selecting an | |
| 41 * individual cell in a table. | |
| 42 * | |
| 43 * <p> Here is an example of using a TableCursor to navigate to a cell and then edit it. | |
| 44 * | |
| 45 * <code><pre> | |
| 46 * public static void main(String[] args) { | |
| 47 * Display display = new Display(); | |
| 48 * Shell shell = new Shell(display); | |
| 49 * shell.setLayout(new GridLayout()); | |
| 50 * | |
| 51 * // create a a table with 3 columns and fill with data | |
| 52 * final Table table = new Table(shell, SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION); | |
| 53 * table.setLayoutData(new GridData(GridData.FILL_BOTH)); | |
| 54 * TableColumn column1 = new TableColumn(table, SWT.NONE); | |
| 55 * TableColumn column2 = new TableColumn(table, SWT.NONE); | |
| 56 * TableColumn column3 = new TableColumn(table, SWT.NONE); | |
| 57 * for (int i = 0; i < 100; i++) { | |
| 58 * TableItem item = new TableItem(table, SWT.NONE); | |
| 59 * item.setText(new String[] { "cell "+i+" 0", "cell "+i+" 1", "cell "+i+" 2"}); | |
| 60 * } | |
| 61 * column1.pack(); | |
| 62 * column2.pack(); | |
| 63 * column3.pack(); | |
| 64 * | |
| 65 * // create a TableCursor to navigate around the table | |
| 66 * final TableCursor cursor = new TableCursor(table, SWT.NONE); | |
| 67 * // create an editor to edit the cell when the user hits "ENTER" | |
| 68 * // while over a cell in the table | |
| 69 * final ControlEditor editor = new ControlEditor(cursor); | |
| 70 * editor.grabHorizontal = true; | |
| 71 * editor.grabVertical = true; | |
| 72 * | |
| 73 * cursor.addSelectionListener(new SelectionAdapter() { | |
| 74 * // when the TableEditor is over a cell, select the corresponding row in | |
| 75 * // the table | |
| 76 * public void widgetSelected(SelectionEvent e) { | |
| 77 * table.setSelection(new TableItem[] {cursor.getRow()}); | |
| 78 * } | |
| 79 * // when the user hits "ENTER" in the TableCursor, pop up a text editor so that | |
| 80 * // they can change the text of the cell | |
| 81 * public void widgetDefaultSelected(SelectionEvent e){ | |
| 82 * final Text text = new Text(cursor, SWT.NONE); | |
| 83 * TableItem row = cursor.getRow(); | |
| 84 * int column = cursor.getColumn(); | |
| 85 * text.setText(row.getText(column)); | |
| 86 * text.addKeyListener(new KeyAdapter() { | |
| 87 * public void keyPressed(KeyEvent e) { | |
| 88 * // close the text editor and copy the data over | |
| 89 * // when the user hits "ENTER" | |
| 90 * if (e.character is SWT.CR) { | |
| 91 * TableItem row = cursor.getRow(); | |
| 92 * int column = cursor.getColumn(); | |
| 93 * row.setText(column, text.getText()); | |
| 94 * text.dispose(); | |
| 95 * } | |
| 96 * // close the text editor when the user hits "ESC" | |
| 97 * if (e.character is SWT.ESC) { | |
| 98 * text.dispose(); | |
| 99 * } | |
| 100 * } | |
| 101 * }); | |
| 102 * editor.setEditor(text); | |
| 103 * text.setFocus(); | |
| 104 * } | |
| 105 * }); | |
| 106 * // Hide the TableCursor when the user hits the "MOD1" or "MOD2" key. | |
| 107 * // This allows the user to select multiple items in the table. | |
| 108 * cursor.addKeyListener(new KeyAdapter() { | |
| 109 * public void keyPressed(KeyEvent e) { | |
| 110 * if (e.keyCode is SWT.MOD1 || | |
| 111 * e.keyCode is SWT.MOD2 || | |
| 112 * (e.stateMask & SWT.MOD1) !is 0 || | |
| 113 * (e.stateMask & SWT.MOD2) !is 0) { | |
| 114 * cursor.setVisible(false); | |
| 115 * } | |
| 116 * } | |
| 117 * }); | |
| 118 * // Show the TableCursor when the user releases the "MOD2" or "MOD1" key. | |
| 119 * // This signals the end of the multiple selection task. | |
| 120 * table.addKeyListener(new KeyAdapter() { | |
| 121 * public void keyReleased(KeyEvent e) { | |
| 122 * if (e.keyCode is SWT.MOD1 && (e.stateMask & SWT.MOD2) !is 0) return; | |
| 123 * if (e.keyCode is SWT.MOD2 && (e.stateMask & SWT.MOD1) !is 0) return; | |
| 124 * if (e.keyCode !is SWT.MOD1 && (e.stateMask & SWT.MOD1) !is 0) return; | |
| 125 * if (e.keyCode !is SWT.MOD2 && (e.stateMask & SWT.MOD2) !is 0) return; | |
| 126 * | |
| 127 * TableItem[] selection = table.getSelection(); | |
| 128 * TableItem row = (selection.length is 0) ? table.getItem(table.getTopIndex()) : selection[0]; | |
| 129 * table.showItem(row); | |
| 130 * cursor.setSelection(row, 0); | |
| 131 * cursor.setVisible(true); | |
| 132 * cursor.setFocus(); | |
| 133 * } | |
| 134 * }); | |
| 135 * | |
| 136 * shell.open(); | |
| 137 * while (!shell.isDisposed()) { | |
| 138 * if (!display.readAndDispatch()) | |
| 139 * display.sleep(); | |
| 140 * } | |
| 141 * display.dispose(); | |
| 142 * } | |
| 143 * </pre></code> | |
| 144 * | |
| 145 * <dl> | |
| 146 * <dt><b>Styles:</b></dt> | |
| 147 * <dd>BORDER</dd> | |
| 148 * <dt><b>Events:</b></dt> | |
| 149 * <dd>Selection, DefaultSelection</dd> | |
| 150 * </dl> | |
| 151 * | |
| 152 * @since 2.0 | |
| 153 * | |
| 154 * @see <a href="http://www.eclipse.org/swt/snippets/#tablecursor">TableCursor snippets</a> | |
| 155 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
| 156 */ | |
| 157 public class TableCursor : Canvas { | |
| 158 | |
| 159 alias Canvas.dispose dispose; | |
| 160 | |
| 161 Table table; | |
| 162 TableItem row = null; | |
| 163 TableColumn column = null; | |
| 164 Listener tableListener, resizeListener, disposeItemListener, disposeColumnListener; | |
| 165 | |
| 166 Color background = null; | |
| 167 Color foreground = null; | |
| 168 | |
| 169 // By default, invert the list selection colors | |
|
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170 static const int BACKGROUND = SWT.COLOR_LIST_SELECTION_TEXT; |
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171 static const int FOREGROUND = SWT.COLOR_LIST_SELECTION; |
| 25 | 172 |
| 173 /** | |
| 174 * Constructs a new instance of this class given its parent | |
| 175 * table and a style value describing its behavior and appearance. | |
| 176 * <p> | |
| 177 * The style value is either one of the style constants defined in | |
| 178 * class <code>SWT</code> which is applicable to instances of this | |
| 179 * class, or must be built by <em>bitwise OR</em>'ing together | |
| 180 * (that is, using the <code>int</code> "|" operator) two or more | |
| 181 * of those <code>SWT</code> style constants. The class description | |
| 182 * lists the style constants that are applicable to the class. | |
| 183 * Style bits are also inherited from superclasses. | |
| 184 * </p> | |
| 185 * | |
| 186 * @param parent a Table control which will be the parent of the new instance (cannot be null) | |
| 187 * @param style the style of control to construct | |
| 188 * | |
| 189 * @exception IllegalArgumentException <ul> | |
| 190 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> | |
| 191 * </ul> | |
| 192 * @exception SWTException <ul> | |
| 193 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> | |
| 194 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> | |
| 195 * </ul> | |
| 196 * | |
| 197 * @see SWT#BORDER | |
| 198 * @see Widget#checkSubclass() | |
| 199 * @see Widget#getStyle() | |
| 200 */ | |
| 201 public this(Table parent, int style) { | |
| 202 super(parent, style); | |
| 203 table = parent; | |
| 204 setBackground(null); | |
| 205 setForeground(null); | |
| 206 | |
| 207 Listener listener = new class() Listener { | |
| 208 public void handleEvent(Event event) { | |
| 209 switch (event.type) { | |
| 210 case SWT.Dispose : | |
|
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parents:
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diff
changeset
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211 TableCursor.dispose(event); |
| 25 | 212 break; |
| 213 case SWT.FocusIn : | |
| 214 case SWT.FocusOut : | |
| 215 redraw(); | |
| 216 break; | |
| 217 case SWT.KeyDown : | |
| 218 keyDown(event); | |
| 219 break; | |
| 220 case SWT.Paint : | |
| 221 paint(event); | |
| 222 break; | |
| 223 case SWT.Traverse : { | |
| 224 event.doit = true; | |
| 225 switch (event.detail) { | |
| 226 case SWT.TRAVERSE_ARROW_NEXT : | |
| 227 case SWT.TRAVERSE_ARROW_PREVIOUS : | |
| 228 case SWT.TRAVERSE_RETURN : | |
| 229 event.doit = false; | |
| 230 break; | |
| 231 default: | |
| 232 } | |
| 233 break; | |
| 234 } | |
| 235 default: | |
| 236 } | |
| 237 } | |
| 238 }; | |
| 239 int[] events = [SWT.Dispose, SWT.FocusIn, SWT.FocusOut, SWT.KeyDown, SWT.Paint, SWT.Traverse]; | |
| 240 for (int i = 0; i < events.length; i++) { | |
| 241 addListener(events[i], listener); | |
| 242 } | |
| 243 | |
| 244 tableListener = new class() Listener { | |
| 245 public void handleEvent(Event event) { | |
| 246 switch (event.type) { | |
| 247 case SWT.MouseDown : | |
| 248 tableMouseDown(event); | |
| 249 break; | |
| 250 case SWT.FocusIn : | |
| 251 tableFocusIn(event); | |
| 252 break; | |
| 253 default: | |
| 254 } | |
| 255 } | |
| 256 }; | |
| 257 table.addListener(SWT.FocusIn, tableListener); | |
| 258 table.addListener(SWT.MouseDown, tableListener); | |
| 259 | |
| 260 disposeItemListener = new class() Listener { | |
| 261 public void handleEvent(Event event) { | |
| 262 unhookRowColumnListeners(); | |
| 263 row = null; | |
| 264 column = null; | |
| 265 _resize(); | |
| 266 } | |
| 267 }; | |
| 268 disposeColumnListener = new class() Listener { | |
| 269 public void handleEvent(Event event) { | |
| 270 unhookRowColumnListeners(); | |
| 271 row = null; | |
| 272 column = null; | |
| 273 _resize(); | |
| 274 } | |
| 275 }; | |
| 276 resizeListener = new class() Listener { | |
| 277 public void handleEvent(Event event) { | |
| 278 _resize(); | |
| 279 } | |
| 280 }; | |
| 281 ScrollBar hBar = table.getHorizontalBar(); | |
| 282 if (hBar !is null) { | |
| 283 hBar.addListener(SWT.Selection, resizeListener); | |
| 284 } | |
| 285 ScrollBar vBar = table.getVerticalBar(); | |
| 286 if (vBar !is null) { | |
| 287 vBar.addListener(SWT.Selection, resizeListener); | |
| 288 } | |
| 289 } | |
| 290 | |
| 291 /** | |
| 292 * Adds the listener to the collection of listeners who will | |
| 293 * be notified when the user changes the receiver's selection, by sending | |
| 294 * it one of the messages defined in the <code>SelectionListener</code> | |
| 295 * interface. | |
| 296 * <p> | |
| 297 * When <code>widgetSelected</code> is called, the item field of the event object is valid. | |
| 298 * If the receiver has <code>SWT.CHECK</code> style set and the check selection changes, | |
| 299 * the event object detail field contains the value <code>SWT.CHECK</code>. | |
| 300 * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked. | |
| 301 * </p> | |
| 302 * | |
| 303 * @param listener the listener which should be notified when the user changes the receiver's selection | |
| 304 * | |
| 305 * @exception IllegalArgumentException <ul> | |
| 306 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 307 * </ul> | |
| 308 * @exception SWTException <ul> | |
| 309 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 310 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 311 * </ul> | |
| 312 * | |
| 313 * @see SelectionListener | |
| 314 * @see SelectionEvent | |
| 315 * @see #removeSelectionListener(SelectionListener) | |
| 316 * | |
| 317 */ | |
| 318 public void addSelectionListener(SelectionListener listener) { | |
| 319 checkWidget(); | |
| 320 if (listener is null) | |
| 321 SWT.error(SWT.ERROR_NULL_ARGUMENT); | |
| 322 TypedListener typedListener = new TypedListener(listener); | |
| 323 addListener(SWT.Selection, typedListener); | |
| 324 addListener(SWT.DefaultSelection, typedListener); | |
| 325 } | |
| 326 | |
| 327 void dispose(Event event) { | |
| 328 table.removeListener(SWT.FocusIn, tableListener); | |
| 329 table.removeListener(SWT.MouseDown, tableListener); | |
| 330 unhookRowColumnListeners(); | |
| 331 ScrollBar hBar = table.getHorizontalBar(); | |
| 332 if (hBar !is null) { | |
| 333 hBar.removeListener(SWT.Selection, resizeListener); | |
| 334 } | |
| 335 ScrollBar vBar = table.getVerticalBar(); | |
| 336 if (vBar !is null) { | |
| 337 vBar.removeListener(SWT.Selection, resizeListener); | |
| 338 } | |
| 339 } | |
| 340 | |
| 341 void keyDown(Event event) { | |
| 342 if (row is null) return; | |
| 343 switch (event.character) { | |
| 344 case SWT.CR : | |
| 345 notifyListeners(SWT.DefaultSelection, new Event()); | |
| 346 return; | |
| 347 default: | |
| 348 } | |
| 349 int rowIndex = table.indexOf(row); | |
| 350 int columnIndex = column is null ? 0 : table.indexOf(column); | |
| 351 switch (event.keyCode) { | |
| 352 case SWT.ARROW_UP : | |
| 353 setRowColumn(Math.max(0, rowIndex - 1), columnIndex, true); | |
| 354 break; | |
| 355 case SWT.ARROW_DOWN : | |
| 356 setRowColumn(Math.min(rowIndex + 1, table.getItemCount() - 1), columnIndex, true); | |
| 357 break; | |
| 358 case SWT.ARROW_LEFT : | |
| 359 case SWT.ARROW_RIGHT : | |
| 360 { | |
| 361 int columnCount = table.getColumnCount(); | |
| 362 if (columnCount is 0) break; | |
| 363 int[] order = table.getColumnOrder(); | |
| 364 int index = 0; | |
| 365 while (index < order.length) { | |
| 366 if (order[index] is columnIndex) break; | |
| 367 index++; | |
| 368 } | |
| 369 if (index is order.length) index = 0; | |
| 370 int leadKey = (getStyle() & SWT.RIGHT_TO_LEFT) !is 0 ? SWT.ARROW_RIGHT : SWT.ARROW_LEFT; | |
| 371 if (event.keyCode is leadKey) { | |
| 372 setRowColumn(rowIndex, order[Math.max(0, index - 1)], true); | |
| 373 } else { | |
| 374 setRowColumn(rowIndex, order[Math.min(columnCount - 1, index + 1)], true); | |
| 375 } | |
| 376 break; | |
| 377 } | |
| 378 case SWT.HOME : | |
| 379 setRowColumn(0, columnIndex, true); | |
| 380 break; | |
| 381 case SWT.END : | |
| 382 { | |
| 383 int i = table.getItemCount() - 1; | |
| 384 setRowColumn(i, columnIndex, true); | |
| 385 break; | |
| 386 } | |
| 387 case SWT.PAGE_UP : | |
| 388 { | |
| 389 int index = table.getTopIndex(); | |
| 390 if (index is rowIndex) { | |
| 391 Rectangle rect = table.getClientArea(); | |
| 392 TableItem item = table.getItem(index); | |
| 393 Rectangle itemRect = item.getBounds(0); | |
| 394 rect.height -= itemRect.y; | |
| 395 int height = table.getItemHeight(); | |
| 396 int page = Math.max(1, rect.height / height); | |
| 397 index = Math.max(0, index - page + 1); | |
| 398 } | |
| 399 setRowColumn(index, columnIndex, true); | |
| 400 break; | |
| 401 } | |
| 402 case SWT.PAGE_DOWN : | |
| 403 { | |
| 404 int index = table.getTopIndex(); | |
| 405 Rectangle rect = table.getClientArea(); | |
| 406 TableItem item = table.getItem(index); | |
| 407 Rectangle itemRect = item.getBounds(0); | |
| 408 rect.height -= itemRect.y; | |
| 409 int height = table.getItemHeight(); | |
| 410 int page = Math.max(1, rect.height / height); | |
| 411 int end = table.getItemCount() - 1; | |
| 412 index = Math.min(end, index + page - 1); | |
| 413 if (index is rowIndex) { | |
| 414 index = Math.min(end, index + page - 1); | |
| 415 } | |
| 416 setRowColumn(index, columnIndex, true); | |
| 417 break; | |
| 418 } | |
| 419 default: | |
| 420 } | |
| 421 } | |
| 422 | |
| 423 void paint(Event event) { | |
| 424 if (row is null) return; | |
| 425 int columnIndex = column is null ? 0 : table.indexOf(column); | |
| 426 GC gc = event.gc; | |
| 427 Display display = getDisplay(); | |
| 428 gc.setBackground(getBackground()); | |
| 429 gc.setForeground(getForeground()); | |
| 430 gc.fillRectangle(event.x, event.y, event.width, event.height); | |
| 431 int x = 0; | |
| 432 Point size = getSize(); | |
| 433 Image image = row.getImage(columnIndex); | |
| 434 if (image !is null) { | |
| 435 Rectangle imageSize = image.getBounds(); | |
| 436 int imageY = (size.y - imageSize.height) / 2; | |
| 437 gc.drawImage(image, x, imageY); | |
| 438 x += imageSize.width; | |
| 439 } | |
| 440 String text = row.getText(columnIndex); | |
| 441 if (text.length > 0) { | |
| 442 Rectangle bounds = row.getBounds(columnIndex); | |
| 443 Point extent = gc.stringExtent(text); | |
| 444 // Temporary code - need a better way to determine table trim | |
| 445 String platform = SWT.getPlatform(); | |
| 446 if ("win32"==platform) { //$NON-NLS-1$ | |
| 447 if (table.getColumnCount() is 0 || columnIndex is 0) { | |
| 448 x += 2; | |
| 449 } else { | |
| 450 int alignmnent = column.getAlignment(); | |
| 451 switch (alignmnent) { | |
| 452 case SWT.LEFT: | |
| 453 x += 6; | |
| 454 break; | |
| 455 case SWT.RIGHT: | |
| 456 x = bounds.width - extent.x - 6; | |
| 457 break; | |
| 458 case SWT.CENTER: | |
| 459 x += (bounds.width - x - extent.x) / 2; | |
| 460 break; | |
| 461 default: | |
| 462 } | |
| 463 } | |
| 464 } else { | |
| 465 if (table.getColumnCount() is 0) { | |
| 466 x += 5; | |
| 467 } else { | |
| 468 int alignmnent = column.getAlignment(); | |
| 469 switch (alignmnent) { | |
| 470 case SWT.LEFT: | |
| 471 x += 5; | |
| 472 break; | |
| 473 case SWT.RIGHT: | |
| 474 x = bounds.width- extent.x - 2; | |
| 475 break; | |
| 476 case SWT.CENTER: | |
| 477 x += (bounds.width - x - extent.x) / 2 + 2; | |
| 478 break; | |
| 479 default: | |
| 480 } | |
| 481 } | |
| 482 } | |
| 483 int textY = (size.y - extent.y) / 2; | |
| 484 gc.drawString(text, x, textY); | |
| 485 } | |
| 486 if (isFocusControl()) { | |
| 487 gc.setBackground(display.getSystemColor(SWT.COLOR_BLACK)); | |
| 488 gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE)); | |
| 489 gc.drawFocus(0, 0, size.x, size.y); | |
| 490 } | |
| 491 } | |
| 492 | |
| 493 void tableFocusIn(Event event) { | |
| 494 if (isDisposed()) return; | |
| 495 if (isVisible()) { | |
| 496 if (row is null && column is null) return; | |
| 497 setFocus(); | |
| 498 } | |
| 499 } | |
| 500 | |
| 501 void tableMouseDown(Event event) { | |
| 502 if (isDisposed() || !isVisible()) return; | |
| 503 Point pt = new Point(event.x, event.y); | |
| 504 int lineWidth = table.getLinesVisible() ? table.getGridLineWidth() : 0; | |
| 505 TableItem item = table.getItem(pt); | |
| 506 if ((table.getStyle() & SWT.FULL_SELECTION) !is 0) { | |
| 507 if (item is null) return; | |
| 508 } else { | |
| 509 int start = item !is null ? table.indexOf(item) : table.getTopIndex(); | |
| 510 int end = table.getItemCount(); | |
| 511 Rectangle clientRect = table.getClientArea(); | |
| 512 for (int i = start; i < end; i++) { | |
| 513 TableItem nextItem = table.getItem(i); | |
| 514 Rectangle rect = nextItem.getBounds(0); | |
| 515 if (pt.y >= rect.y && pt.y < rect.y + rect.height + lineWidth) { | |
| 516 item = nextItem; | |
| 517 break; | |
| 518 } | |
| 519 if (rect.y > clientRect.y + clientRect.height) return; | |
| 520 } | |
| 521 if (item is null) return; | |
| 522 } | |
| 523 TableColumn newColumn = null; | |
| 524 int columnCount = table.getColumnCount(); | |
| 525 if (columnCount is 0) { | |
| 526 if ((table.getStyle() & SWT.FULL_SELECTION) is 0) { | |
| 527 Rectangle rect = item.getBounds(0); | |
| 528 rect.width += lineWidth; | |
| 529 rect.height += lineWidth; | |
| 530 if (!rect.contains(pt)) return; | |
| 531 } | |
| 532 } else { | |
| 533 for (int i = 0; i < columnCount; i++) { | |
| 534 Rectangle rect = item.getBounds(i); | |
| 535 rect.width += lineWidth; | |
| 536 rect.height += lineWidth; | |
| 537 if (rect.contains(pt)) { | |
| 538 newColumn = table.getColumn(i); | |
| 539 break; | |
| 540 } | |
| 541 } | |
| 542 if (newColumn is null) { | |
| 543 if ((table.getStyle() & SWT.FULL_SELECTION) is 0) return; | |
| 544 newColumn = table.getColumn(0); | |
| 545 } | |
| 546 } | |
| 547 setRowColumn(item, newColumn, true); | |
| 548 setFocus(); | |
| 549 return; | |
| 550 } | |
| 551 void setRowColumn(int row, int column, bool notify) { | |
| 552 TableItem item = row is -1 ? null : table.getItem(row); | |
| 553 TableColumn col = column is -1 || table.getColumnCount() is 0 ? null : table.getColumn(column); | |
| 554 setRowColumn(item, col, notify); | |
| 555 } | |
| 556 void setRowColumn(TableItem row, TableColumn column, bool notify) { | |
| 557 if (this.row is row && this.column is column) { | |
| 558 return; | |
| 559 } | |
| 560 if (this.row !is null && this.row !is row) { | |
| 561 this.row.removeListener(SWT.Dispose, disposeItemListener); | |
| 562 this.row = null; | |
| 563 } | |
| 564 if (this.column !is null && this.column !is column) { | |
| 565 this.column.removeListener(SWT.Dispose, disposeColumnListener); | |
| 566 this.column.removeListener(SWT.Move, resizeListener); | |
| 567 this.column.removeListener(SWT.Resize, resizeListener); | |
| 568 this.column = null; | |
| 569 } | |
| 570 if (row !is null) { | |
| 571 if (this.row !is row) { | |
| 572 this.row = row; | |
| 573 row.addListener(SWT.Dispose, disposeItemListener); | |
| 574 table.showItem(row); | |
| 575 } | |
| 576 if (this.column !is column && column !is null) { | |
| 577 this.column = column; | |
| 578 column.addListener(SWT.Dispose, disposeColumnListener); | |
| 579 column.addListener(SWT.Move, resizeListener); | |
| 580 column.addListener(SWT.Resize, resizeListener); | |
| 581 table.showColumn(column); | |
| 582 } | |
| 583 int columnIndex = column is null ? 0 : table.indexOf(column); | |
| 584 setBounds(row.getBounds(columnIndex)); | |
| 585 redraw(); | |
| 586 if (notify) { | |
| 587 notifyListeners(SWT.Selection, new Event()); | |
| 588 } | |
| 589 } | |
| 590 } | |
| 591 | |
| 592 public override void setVisible(bool visible) { | |
| 593 checkWidget(); | |
| 594 if (visible) _resize(); | |
| 595 super.setVisible(visible); | |
| 596 } | |
| 597 | |
| 598 /** | |
| 599 * Removes the listener from the collection of listeners who will | |
| 600 * be notified when the user changes the receiver's selection. | |
| 601 * | |
| 602 * @param listener the listener which should no longer be notified | |
| 603 * | |
| 604 * @exception IllegalArgumentException <ul> | |
| 605 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 606 * </ul> | |
| 607 * @exception SWTException <ul> | |
| 608 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 609 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 610 * </ul> | |
| 611 * | |
| 612 * @see SelectionListener | |
| 613 * @see #addSelectionListener(SelectionListener) | |
| 614 * | |
| 615 * @since 3.0 | |
| 616 */ | |
| 617 public void removeSelectionListener(SelectionListener listener) { | |
| 618 checkWidget(); | |
| 619 if (listener is null) { | |
| 620 SWT.error(SWT.ERROR_NULL_ARGUMENT); | |
| 621 } | |
| 622 removeListener(SWT.Selection, listener); | |
| 623 removeListener(SWT.DefaultSelection, listener); | |
| 624 } | |
| 625 | |
| 626 void _resize() { | |
| 627 if (row is null) { | |
| 628 setBounds(-200, -200, 0, 0); | |
| 629 } else { | |
| 630 int columnIndex = column is null ? 0 : table.indexOf(column); | |
| 631 setBounds(row.getBounds(columnIndex)); | |
| 632 } | |
| 633 } | |
| 634 /** | |
| 635 * Returns the column over which the TableCursor is positioned. | |
| 636 * | |
| 637 * @return the column for the current position | |
| 638 * | |
| 639 * @exception SWTException <ul> | |
| 640 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 641 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 642 * </ul> | |
| 643 */ | |
| 644 public int getColumn() { | |
| 645 checkWidget(); | |
| 646 return column is null ? 0 : table.indexOf(column); | |
| 647 } | |
| 648 /** | |
| 649 * Returns the background color that the receiver will use to draw. | |
| 650 * | |
| 651 * @return the receiver's background color | |
| 652 */ | |
| 653 public Color getBackground() { | |
| 654 checkWidget(); | |
| 655 if (background is null) { | |
| 656 return getDisplay().getSystemColor(BACKGROUND); | |
| 657 } | |
| 658 return background; | |
| 659 } | |
| 660 /** | |
| 661 * Returns the foreground color that the receiver will use to draw. | |
| 662 * | |
| 663 * @return the receiver's foreground color | |
| 664 */ | |
| 665 public Color getForeground() { | |
| 666 checkWidget(); | |
| 667 if (foreground is null) { | |
| 668 return getDisplay().getSystemColor(FOREGROUND); | |
| 669 } | |
| 670 return foreground; | |
| 671 } | |
| 672 /** | |
| 673 * Returns the row over which the TableCursor is positioned. | |
| 674 * | |
| 675 * @return the item for the current position | |
| 676 * | |
| 677 * @exception SWTException <ul> | |
| 678 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 679 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 680 * </ul> | |
| 681 */ | |
| 682 public TableItem getRow() { | |
| 683 checkWidget(); | |
| 684 return row; | |
| 685 } | |
| 686 /** | |
| 687 * Sets the receiver's background color to the color specified | |
| 688 * by the argument, or to the default system color for the control | |
| 689 * if the argument is null. | |
| 690 * <p> | |
| 691 * Note: This operation is a hint and may be overridden by the platform. | |
| 692 * For example, on Windows the background of a Button cannot be changed. | |
| 693 * </p> | |
| 694 * @param color the new color (or null) | |
| 695 * | |
| 696 * @exception IllegalArgumentException <ul> | |
| 697 * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> | |
| 698 * </ul> | |
| 699 * @exception SWTException <ul> | |
| 700 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 701 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 702 * </ul> | |
| 703 */ | |
| 704 public override void setBackground (Color color) { | |
| 705 background = color; | |
| 706 super.setBackground(getBackground()); | |
| 707 redraw(); | |
| 708 } | |
| 709 /** | |
| 710 * Sets the receiver's foreground color to the color specified | |
| 711 * by the argument, or to the default system color for the control | |
| 712 * if the argument is null. | |
| 713 * <p> | |
| 714 * Note: This operation is a hint and may be overridden by the platform. | |
| 715 * </p> | |
| 716 * @param color the new color (or null) | |
| 717 * | |
| 718 * @exception IllegalArgumentException <ul> | |
| 719 * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> | |
| 720 * </ul> | |
| 721 * @exception SWTException <ul> | |
| 722 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 723 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 724 * </ul> | |
| 725 */ | |
| 726 public override void setForeground (Color color) { | |
| 727 foreground = color; | |
| 728 super.setForeground(getForeground()); | |
| 729 redraw(); | |
| 730 } | |
| 731 /** | |
| 732 * Positions the TableCursor over the cell at the given row and column in the parent table. | |
| 733 * | |
| 734 * @param row the index of the row for the cell to select | |
| 735 * @param column the index of column for the cell to select | |
| 736 * | |
| 737 * @exception SWTException <ul> | |
| 738 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 739 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 740 * </ul> | |
| 741 * | |
| 742 */ | |
| 743 public void setSelection(int row, int column) { | |
| 744 checkWidget(); | |
| 745 int columnCount = table.getColumnCount(); | |
| 746 int maxColumnIndex = columnCount is 0 ? 0 : columnCount - 1; | |
| 747 if (row < 0 | |
| 748 || row >= table.getItemCount() | |
| 749 || column < 0 | |
| 750 || column > maxColumnIndex) | |
| 751 SWT.error(SWT.ERROR_INVALID_ARGUMENT); | |
| 752 setRowColumn(row, column, false); | |
| 753 } | |
| 754 /** | |
| 755 * Positions the TableCursor over the cell at the given row and column in the parent table. | |
| 756 * | |
| 757 * @param row the TableItem of the row for the cell to select | |
| 758 * @param column the index of column for the cell to select | |
| 759 * | |
| 760 * @exception SWTException <ul> | |
| 761 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 762 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 763 * </ul> | |
| 764 * | |
| 765 */ | |
| 766 public void setSelection(TableItem row, int column) { | |
| 767 checkWidget(); | |
| 768 int columnCount = table.getColumnCount(); | |
| 769 int maxColumnIndex = columnCount is 0 ? 0 : columnCount - 1; | |
| 770 if (row is null | |
| 771 || row.isDisposed() | |
| 772 || column < 0 | |
| 773 || column > maxColumnIndex) | |
| 774 SWT.error(SWT.ERROR_INVALID_ARGUMENT); | |
| 775 setRowColumn(table.indexOf(row), column, false); | |
| 776 } | |
| 777 void unhookRowColumnListeners() { | |
| 778 if (column !is null) { | |
| 779 column.removeListener(SWT.Dispose, disposeColumnListener); | |
| 780 column.removeListener(SWT.Move, resizeListener); | |
| 781 column.removeListener(SWT.Resize, resizeListener); | |
| 782 column = null; | |
| 783 } | |
| 784 if (row !is null) { | |
| 785 row.removeListener(SWT.Dispose, disposeItemListener); | |
| 786 row = null; | |
| 787 } | |
| 788 } | |
| 789 } |