Mercurial > projects > dwt-win
annotate dwt/custom/TableCursor.d @ 213:36f5cb12e1a2
Update to SWT 3.4M7
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sat, 17 May 2008 17:34:28 +0200 |
| parents | ab60f3309436 |
| children | fd9c62a2998e |
| rev | line source |
|---|---|
| 155 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2007 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 dwt.custom.TableCursor; | |
| 14 | |
| 15 | |
| 16 import dwt.DWT; | |
| 17 import dwt.DWTException; | |
| 18 import dwt.events.SelectionEvent; | |
| 19 import dwt.events.SelectionListener; | |
| 20 import dwt.graphics.Color; | |
| 21 import dwt.graphics.GC; | |
| 22 import dwt.graphics.Image; | |
| 23 import dwt.graphics.Point; | |
| 24 import dwt.graphics.Rectangle; | |
| 25 import dwt.widgets.Canvas; | |
| 26 import dwt.widgets.Display; | |
| 27 import dwt.widgets.Event; | |
| 28 import dwt.widgets.Listener; | |
| 29 import dwt.widgets.ScrollBar; | |
| 30 import dwt.widgets.Table; | |
| 31 import dwt.widgets.TableColumn; | |
| 32 import dwt.widgets.TableItem; | |
| 33 import dwt.widgets.TypedListener; | |
| 34 import dwt.widgets.Widget; | |
| 35 import dwt.dwthelper.utils; | |
| 36 | |
| 37 /** | |
| 38 * A TableCursor provides a way for the user to navigate around a Table | |
| 39 * using the keyboard. It also provides a mechanism for selecting an | |
| 40 * individual cell in a table. | |
| 41 * | |
| 42 * <p> Here is an example of using a TableCursor to navigate to a cell and then edit it. | |
| 43 * | |
| 44 * <code><pre> | |
| 45 * public static void main(String[] args) { | |
| 46 * Display display = new Display(); | |
| 47 * Shell shell = new Shell(display); | |
| 48 * shell.setLayout(new GridLayout()); | |
| 49 * | |
| 50 * // create a a table with 3 columns and fill with data | |
| 51 * final Table table = new Table(shell, DWT.BORDER | DWT.MULTI | DWT.FULL_SELECTION); | |
| 52 * table.setLayoutData(new GridData(GridData.FILL_BOTH)); | |
| 53 * TableColumn column1 = new TableColumn(table, DWT.NONE); | |
| 54 * TableColumn column2 = new TableColumn(table, DWT.NONE); | |
| 55 * TableColumn column3 = new TableColumn(table, DWT.NONE); | |
| 56 * for (int i = 0; i < 100; i++) { | |
| 57 * TableItem item = new TableItem(table, DWT.NONE); | |
| 58 * item.setText(new String[] { "cell "+i+" 0", "cell "+i+" 1", "cell "+i+" 2"}); | |
| 59 * } | |
| 60 * column1.pack(); | |
| 61 * column2.pack(); | |
| 62 * column3.pack(); | |
| 63 * | |
| 64 * // create a TableCursor to navigate around the table | |
| 65 * final TableCursor cursor = new TableCursor(table, DWT.NONE); | |
| 66 * // create an editor to edit the cell when the user hits "ENTER" | |
| 67 * // while over a cell in the table | |
| 68 * final ControlEditor editor = new ControlEditor(cursor); | |
| 69 * editor.grabHorizontal = true; | |
| 70 * editor.grabVertical = true; | |
| 71 * | |
| 72 * cursor.addSelectionListener(new SelectionAdapter() { | |
| 73 * // when the TableEditor is over a cell, select the corresponding row in | |
| 74 * // the table | |
| 75 * public void widgetSelected(SelectionEvent e) { | |
| 76 * table.setSelection(new TableItem[] {cursor.getRow()}); | |
| 77 * } | |
| 78 * // when the user hits "ENTER" in the TableCursor, pop up a text editor so that | |
| 79 * // they can change the text of the cell | |
| 80 * public void widgetDefaultSelected(SelectionEvent e){ | |
| 81 * final Text text = new Text(cursor, DWT.NONE); | |
| 82 * TableItem row = cursor.getRow(); | |
| 83 * int column = cursor.getColumn(); | |
| 84 * text.setText(row.getText(column)); | |
| 85 * text.addKeyListener(new KeyAdapter() { | |
| 86 * public void keyPressed(KeyEvent e) { | |
| 87 * // close the text editor and copy the data over | |
| 88 * // when the user hits "ENTER" | |
| 89 * if (e.character is DWT.CR) { | |
| 90 * TableItem row = cursor.getRow(); | |
| 91 * int column = cursor.getColumn(); | |
| 92 * row.setText(column, text.getText()); | |
| 93 * text.dispose(); | |
| 94 * } | |
| 95 * // close the text editor when the user hits "ESC" | |
| 96 * if (e.character is DWT.ESC) { | |
| 97 * text.dispose(); | |
| 98 * } | |
| 99 * } | |
| 100 * }); | |
| 101 * editor.setEditor(text); | |
| 102 * text.setFocus(); | |
| 103 * } | |
| 104 * }); | |
| 105 * // Hide the TableCursor when the user hits the "MOD1" or "MOD2" key. | |
| 106 * // This allows the user to select multiple items in the table. | |
| 107 * cursor.addKeyListener(new KeyAdapter() { | |
| 108 * public void keyPressed(KeyEvent e) { | |
| 109 * if (e.keyCode is DWT.MOD1 || | |
| 110 * e.keyCode is DWT.MOD2 || | |
| 111 * (e.stateMask & DWT.MOD1) !is 0 || | |
| 112 * (e.stateMask & DWT.MOD2) !is 0) { | |
| 113 * cursor.setVisible(false); | |
| 114 * } | |
| 115 * } | |
| 116 * }); | |
| 117 * // Show the TableCursor when the user releases the "MOD2" or "MOD1" key. | |
| 118 * // This signals the end of the multiple selection task. | |
| 119 * table.addKeyListener(new KeyAdapter() { | |
| 120 * public void keyReleased(KeyEvent e) { | |
| 121 * if (e.keyCode is DWT.MOD1 && (e.stateMask & DWT.MOD2) !is 0) return; | |
| 122 * if (e.keyCode is DWT.MOD2 && (e.stateMask & DWT.MOD1) !is 0) return; | |
| 123 * if (e.keyCode !is DWT.MOD1 && (e.stateMask & DWT.MOD1) !is 0) return; | |
| 124 * if (e.keyCode !is DWT.MOD2 && (e.stateMask & DWT.MOD2) !is 0) return; | |
| 125 * | |
| 126 * TableItem[] selection = table.getSelection(); | |
| 127 * TableItem row = (selection.length is 0) ? table.getItem(table.getTopIndex()) : selection[0]; | |
| 128 * table.showItem(row); | |
| 129 * cursor.setSelection(row, 0); | |
| 130 * cursor.setVisible(true); | |
| 131 * cursor.setFocus(); | |
| 132 * } | |
| 133 * }); | |
| 134 * | |
| 135 * shell.open(); | |
| 136 * while (!shell.isDisposed()) { | |
| 137 * if (!display.readAndDispatch()) | |
| 138 * display.sleep(); | |
| 139 * } | |
| 140 * display.dispose(); | |
| 141 * } | |
| 142 * </pre></code> | |
| 143 * | |
| 144 * <dl> | |
| 145 * <dt><b>Styles:</b></dt> | |
| 146 * <dd>BORDER</dd> | |
| 147 * <dt><b>Events:</b></dt> | |
| 148 * <dd>Selection, DefaultSelection</dd> | |
| 149 * </dl> | |
| 150 * | |
| 151 * @since 2.0 | |
| 152 * | |
| 153 */ | |
| 154 public class TableCursor : Canvas { | |
| 155 | |
| 156 alias Canvas.dispose dispose; | |
| 157 | |
| 158 Table table; | |
| 159 TableItem row = null; | |
| 160 TableColumn column = null; | |
| 161 Listener tableListener, resizeListener, disposeItemListener, disposeColumnListener; | |
| 162 | |
| 213 | 163 Color background = null; |
| 164 Color foreground = null; | |
| 165 | |
| 155 | 166 // By default, invert the list selection colors |
| 167 static final int BACKGROUND = DWT.COLOR_LIST_SELECTION_TEXT; | |
| 168 static final int FOREGROUND = DWT.COLOR_LIST_SELECTION; | |
| 169 | |
| 170 /** | |
| 171 * Constructs a new instance of this class given its parent | |
| 172 * table and a style value describing its behavior and appearance. | |
| 173 * <p> | |
| 174 * The style value is either one of the style constants defined in | |
| 175 * class <code>DWT</code> which is applicable to instances of this | |
| 176 * class, or must be built by <em>bitwise OR</em>'ing together | |
| 177 * (that is, using the <code>int</code> "|" operator) two or more | |
| 178 * of those <code>DWT</code> style constants. The class description | |
| 179 * lists the style constants that are applicable to the class. | |
| 180 * Style bits are also inherited from superclasses. | |
| 181 * </p> | |
| 182 * | |
| 183 * @param parent a Table control which will be the parent of the new instance (cannot be null) | |
| 184 * @param style the style of control to construct | |
| 185 * | |
| 186 * @exception IllegalArgumentException <ul> | |
| 187 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> | |
| 188 * </ul> | |
| 189 * @exception DWTException <ul> | |
| 190 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> | |
| 191 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> | |
| 192 * </ul> | |
| 193 * | |
| 194 * @see DWT#BORDER | |
| 195 * @see Widget#checkSubclass() | |
| 196 * @see Widget#getStyle() | |
| 197 */ | |
| 198 public this(Table parent, int style) { | |
| 199 super(parent, style); | |
| 200 table = parent; | |
| 201 setBackground(null); | |
| 202 setForeground(null); | |
| 203 | |
| 204 Listener listener = new class() Listener { | |
| 205 public void handleEvent(Event event) { | |
| 206 switch (event.type) { | |
| 207 case DWT.Dispose : | |
| 208 dispose(event); | |
| 209 break; | |
| 210 case DWT.FocusIn : | |
| 211 case DWT.FocusOut : | |
| 212 redraw(); | |
| 213 break; | |
| 214 case DWT.KeyDown : | |
| 215 keyDown(event); | |
| 216 break; | |
| 217 case DWT.Paint : | |
| 218 paint(event); | |
| 219 break; | |
| 220 case DWT.Traverse : { | |
| 221 event.doit = true; | |
| 222 switch (event.detail) { | |
| 223 case DWT.TRAVERSE_ARROW_NEXT : | |
| 224 case DWT.TRAVERSE_ARROW_PREVIOUS : | |
| 225 case DWT.TRAVERSE_RETURN : | |
| 226 event.doit = false; | |
| 227 break; | |
| 228 default: | |
| 229 } | |
| 230 break; | |
| 231 } | |
| 232 default: | |
| 233 } | |
| 234 } | |
| 235 }; | |
| 236 int[] events = [DWT.Dispose, DWT.FocusIn, DWT.FocusOut, DWT.KeyDown, DWT.Paint, DWT.Traverse]; | |
| 237 for (int i = 0; i < events.length; i++) { | |
| 238 addListener(events[i], listener); | |
| 239 } | |
| 240 | |
| 241 tableListener = new class() Listener { | |
| 242 public void handleEvent(Event event) { | |
| 243 switch (event.type) { | |
| 244 case DWT.MouseDown : | |
| 245 tableMouseDown(event); | |
| 246 break; | |
| 247 case DWT.FocusIn : | |
| 248 tableFocusIn(event); | |
| 249 break; | |
| 250 default: | |
| 251 } | |
| 252 } | |
| 253 }; | |
| 254 table.addListener(DWT.FocusIn, tableListener); | |
| 255 table.addListener(DWT.MouseDown, tableListener); | |
| 256 | |
| 257 disposeItemListener = new class() Listener { | |
| 258 public void handleEvent(Event event) { | |
| 213 | 259 unhookRowColumnListeners(); |
| 155 | 260 row = null; |
| 261 column = null; | |
| 262 _resize(); | |
| 263 } | |
| 264 }; | |
| 265 disposeColumnListener = new class() Listener { | |
| 266 public void handleEvent(Event event) { | |
| 213 | 267 unhookRowColumnListeners(); |
| 155 | 268 row = null; |
| 269 column = null; | |
| 270 _resize(); | |
| 271 } | |
| 272 }; | |
| 273 resizeListener = new class() Listener { | |
| 274 public void handleEvent(Event event) { | |
| 275 _resize(); | |
| 276 } | |
| 277 }; | |
| 278 ScrollBar hBar = table.getHorizontalBar(); | |
| 279 if (hBar !is null) { | |
| 280 hBar.addListener(DWT.Selection, resizeListener); | |
| 281 } | |
| 282 ScrollBar vBar = table.getVerticalBar(); | |
| 283 if (vBar !is null) { | |
| 284 vBar.addListener(DWT.Selection, resizeListener); | |
| 285 } | |
| 286 } | |
| 287 | |
| 288 /** | |
| 289 * Adds the listener to the collection of listeners who will | |
| 290 * be notified when the user changes the receiver's selection, by sending | |
| 291 * it one of the messages defined in the <code>SelectionListener</code> | |
| 292 * interface. | |
| 293 * <p> | |
| 294 * When <code>widgetSelected</code> is called, the item field of the event object is valid. | |
| 295 * If the receiver has <code>DWT.CHECK</code> style set and the check selection changes, | |
| 296 * the event object detail field contains the value <code>DWT.CHECK</code>. | |
| 297 * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked. | |
| 298 * </p> | |
| 299 * | |
| 300 * @param listener the listener which should be notified when the user changes the receiver's selection | |
| 301 * | |
| 302 * @exception IllegalArgumentException <ul> | |
| 303 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 304 * </ul> | |
| 305 * @exception DWTException <ul> | |
| 306 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 307 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 308 * </ul> | |
| 309 * | |
| 310 * @see SelectionListener | |
| 311 * @see SelectionEvent | |
| 312 * @see #removeSelectionListener(SelectionListener) | |
| 313 * | |
| 314 */ | |
| 315 public void addSelectionListener(SelectionListener listener) { | |
| 316 checkWidget(); | |
| 317 if (listener is null) | |
| 318 DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 319 TypedListener typedListener = new TypedListener(listener); | |
| 320 addListener(DWT.Selection, typedListener); | |
| 321 addListener(DWT.DefaultSelection, typedListener); | |
| 322 } | |
| 323 | |
| 324 void dispose(Event event) { | |
| 325 table.removeListener(DWT.FocusIn, tableListener); | |
| 326 table.removeListener(DWT.MouseDown, tableListener); | |
| 213 | 327 unhookRowColumnListeners(); |
| 155 | 328 ScrollBar hBar = table.getHorizontalBar(); |
| 329 if (hBar !is null) { | |
| 330 hBar.removeListener(DWT.Selection, resizeListener); | |
| 331 } | |
| 332 ScrollBar vBar = table.getVerticalBar(); | |
| 333 if (vBar !is null) { | |
| 334 vBar.removeListener(DWT.Selection, resizeListener); | |
| 335 } | |
| 336 } | |
| 337 | |
| 338 void keyDown(Event event) { | |
| 339 if (row is null) return; | |
| 340 switch (event.character) { | |
| 341 case DWT.CR : | |
| 342 notifyListeners(DWT.DefaultSelection, new Event()); | |
| 343 return; | |
| 344 default: | |
| 345 } | |
| 346 int rowIndex = table.indexOf(row); | |
| 347 int columnIndex = column is null ? 0 : table.indexOf(column); | |
| 348 switch (event.keyCode) { | |
| 349 case DWT.ARROW_UP : | |
| 350 setRowColumn(Math.max(0, rowIndex - 1), columnIndex, true); | |
| 351 break; | |
| 352 case DWT.ARROW_DOWN : | |
| 353 setRowColumn(Math.min(rowIndex + 1, table.getItemCount() - 1), columnIndex, true); | |
| 354 break; | |
| 355 case DWT.ARROW_LEFT : | |
| 356 case DWT.ARROW_RIGHT : | |
| 357 { | |
| 358 int columnCount = table.getColumnCount(); | |
| 359 if (columnCount is 0) break; | |
| 360 int[] order = table.getColumnOrder(); | |
| 361 int index = 0; | |
| 362 while (index < order.length) { | |
| 363 if (order[index] is columnIndex) break; | |
| 364 index++; | |
| 365 } | |
| 366 if (index is order.length) index = 0; | |
| 367 int leadKey = (getStyle() & DWT.RIGHT_TO_LEFT) !is 0 ? DWT.ARROW_RIGHT : DWT.ARROW_LEFT; | |
| 368 if (event.keyCode is leadKey) { | |
| 369 setRowColumn(rowIndex, order[Math.max(0, index - 1)], true); | |
| 370 } else { | |
| 371 setRowColumn(rowIndex, order[Math.min(columnCount - 1, index + 1)], true); | |
| 372 } | |
| 373 break; | |
| 374 } | |
| 375 case DWT.HOME : | |
| 376 setRowColumn(0, columnIndex, true); | |
| 377 break; | |
| 378 case DWT.END : | |
| 379 { | |
| 380 int i = table.getItemCount() - 1; | |
| 381 setRowColumn(i, columnIndex, true); | |
| 382 break; | |
| 383 } | |
| 384 case DWT.PAGE_UP : | |
| 385 { | |
| 386 int index = table.getTopIndex(); | |
| 387 if (index is rowIndex) { | |
| 388 Rectangle rect = table.getClientArea(); | |
| 389 TableItem item = table.getItem(index); | |
| 390 Rectangle itemRect = item.getBounds(0); | |
| 391 rect.height -= itemRect.y; | |
| 392 int height = table.getItemHeight(); | |
| 393 int page = Math.max(1, rect.height / height); | |
| 394 index = Math.max(0, index - page + 1); | |
| 395 } | |
| 396 setRowColumn(index, columnIndex, true); | |
| 397 break; | |
| 398 } | |
| 399 case DWT.PAGE_DOWN : | |
| 400 { | |
| 401 int index = table.getTopIndex(); | |
| 402 Rectangle rect = table.getClientArea(); | |
| 403 TableItem item = table.getItem(index); | |
| 404 Rectangle itemRect = item.getBounds(0); | |
| 405 rect.height -= itemRect.y; | |
| 406 int height = table.getItemHeight(); | |
| 407 int page = Math.max(1, rect.height / height); | |
| 408 int end = table.getItemCount() - 1; | |
| 409 index = Math.min(end, index + page - 1); | |
| 410 if (index is rowIndex) { | |
| 411 index = Math.min(end, index + page - 1); | |
| 412 } | |
| 413 setRowColumn(index, columnIndex, true); | |
| 414 break; | |
| 415 } | |
| 416 default: | |
| 417 } | |
| 418 } | |
| 419 | |
| 420 void paint(Event event) { | |
| 421 if (row is null) return; | |
| 422 int columnIndex = column is null ? 0 : table.indexOf(column); | |
| 423 GC gc = event.gc; | |
| 424 Display display = getDisplay(); | |
| 425 gc.setBackground(getBackground()); | |
| 426 gc.setForeground(getForeground()); | |
| 427 gc.fillRectangle(event.x, event.y, event.width, event.height); | |
| 428 int x = 0; | |
| 429 Point size = getSize(); | |
| 430 Image image = row.getImage(columnIndex); | |
| 431 if (image !is null) { | |
| 432 Rectangle imageSize = image.getBounds(); | |
| 433 int imageY = (size.y - imageSize.height) / 2; | |
| 434 gc.drawImage(image, x, imageY); | |
| 435 x += imageSize.width; | |
| 436 } | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
437 String text = row.getText(columnIndex); |
| 155 | 438 if (text.length > 0) { |
| 439 Rectangle bounds = row.getBounds(columnIndex); | |
| 440 Point extent = gc.stringExtent(text); | |
| 441 // Temporary code - need a better way to determine table trim | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
442 String platform = DWT.getPlatform(); |
| 155 | 443 if ("win32"==platform) { //$NON-NLS-1$ |
| 444 if (table.getColumnCount() is 0 || columnIndex is 0) { | |
| 445 x += 2; | |
| 446 } else { | |
| 447 int alignmnent = column.getAlignment(); | |
| 448 switch (alignmnent) { | |
| 449 case DWT.LEFT: | |
| 450 x += 6; | |
| 451 break; | |
| 452 case DWT.RIGHT: | |
| 453 x = bounds.width - extent.x - 6; | |
| 454 break; | |
| 455 case DWT.CENTER: | |
| 456 x += (bounds.width - x - extent.x) / 2; | |
| 457 break; | |
| 458 default: | |
| 459 } | |
| 460 } | |
| 461 } else { | |
| 462 if (table.getColumnCount() is 0) { | |
| 463 x += 5; | |
| 464 } else { | |
| 465 int alignmnent = column.getAlignment(); | |
| 466 switch (alignmnent) { | |
| 467 case DWT.LEFT: | |
| 468 x += 5; | |
| 469 break; | |
| 470 case DWT.RIGHT: | |
| 471 x = bounds.width- extent.x - 2; | |
| 472 break; | |
| 473 case DWT.CENTER: | |
| 474 x += (bounds.width - x - extent.x) / 2 + 2; | |
| 475 break; | |
| 476 default: | |
| 477 } | |
| 478 } | |
| 479 } | |
| 480 int textY = (size.y - extent.y) / 2; | |
| 481 gc.drawString(text, x, textY); | |
| 482 } | |
| 483 if (isFocusControl()) { | |
| 484 gc.setBackground(display.getSystemColor(DWT.COLOR_BLACK)); | |
| 485 gc.setForeground(display.getSystemColor(DWT.COLOR_WHITE)); | |
| 486 gc.drawFocus(0, 0, size.x, size.y); | |
| 487 } | |
| 488 } | |
| 489 | |
| 490 void tableFocusIn(Event event) { | |
| 213 | 491 if (isDisposed()) return; |
| 492 if (isVisible()) { | |
| 493 if (row is null && column is null) return; | |
| 155 | 494 setFocus(); |
| 213 | 495 } |
| 155 | 496 } |
| 497 | |
| 498 void tableMouseDown(Event event) { | |
| 499 if (isDisposed() || !isVisible()) return; | |
| 500 Point pt = new Point(event.x, event.y); | |
| 501 int lineWidth = table.getLinesVisible() ? table.getGridLineWidth() : 0; | |
| 502 TableItem item = table.getItem(pt); | |
| 503 if ((table.getStyle() & DWT.FULL_SELECTION) !is 0) { | |
| 504 if (item is null) return; | |
| 505 } else { | |
| 506 int start = item !is null ? table.indexOf(item) : table.getTopIndex(); | |
| 507 int end = table.getItemCount(); | |
| 508 Rectangle clientRect = table.getClientArea(); | |
| 509 for (int i = start; i < end; i++) { | |
| 510 TableItem nextItem = table.getItem(i); | |
| 511 Rectangle rect = nextItem.getBounds(0); | |
| 512 if (pt.y >= rect.y && pt.y < rect.y + rect.height + lineWidth) { | |
| 513 item = nextItem; | |
| 514 break; | |
| 515 } | |
| 516 if (rect.y > clientRect.y + clientRect.height) return; | |
| 517 } | |
| 518 if (item is null) return; | |
| 519 } | |
| 520 TableColumn newColumn = null; | |
| 521 int columnCount = table.getColumnCount(); | |
| 213 | 522 if (columnCount is 0) { |
| 523 if ((table.getStyle() & DWT.FULL_SELECTION) is 0) { | |
| 524 Rectangle rect = item.getBounds(0); | |
| 525 rect.width += lineWidth; | |
| 526 rect.height += lineWidth; | |
| 527 if (!rect.contains(pt)) return; | |
| 528 } | |
| 529 } else { | |
| 155 | 530 for (int i = 0; i < columnCount; i++) { |
| 531 Rectangle rect = item.getBounds(i); | |
| 532 rect.width += lineWidth; | |
| 533 rect.height += lineWidth; | |
| 534 if (rect.contains(pt)) { | |
| 535 newColumn = table.getColumn(i); | |
| 536 break; | |
| 537 } | |
| 538 } | |
| 539 if (newColumn is null) { | |
| 213 | 540 if ((table.getStyle() & DWT.FULL_SELECTION) is 0) return; |
| 155 | 541 newColumn = table.getColumn(0); |
| 542 } | |
| 543 } | |
| 544 setRowColumn(item, newColumn, true); | |
| 545 setFocus(); | |
| 546 return; | |
| 547 } | |
| 548 void setRowColumn(int row, int column, bool notify) { | |
| 549 TableItem item = row is -1 ? null : table.getItem(row); | |
| 550 TableColumn col = column is -1 || table.getColumnCount() is 0 ? null : table.getColumn(column); | |
| 551 setRowColumn(item, col, notify); | |
| 552 } | |
| 553 void setRowColumn(TableItem row, TableColumn column, bool notify) { | |
| 554 if (this.row is row && this.column is column) { | |
| 555 return; | |
| 556 } | |
| 557 if (this.row !is null && this.row !is row) { | |
| 558 this.row.removeListener(DWT.Dispose, disposeItemListener); | |
| 559 this.row = null; | |
| 560 } | |
| 561 if (this.column !is null && this.column !is column) { | |
| 562 this.column.removeListener(DWT.Dispose, disposeColumnListener); | |
| 563 this.column.removeListener(DWT.Move, resizeListener); | |
| 564 this.column.removeListener(DWT.Resize, resizeListener); | |
| 565 this.column = null; | |
| 566 } | |
| 567 if (row !is null) { | |
| 568 if (this.row !is row) { | |
| 569 this.row = row; | |
| 570 row.addListener(DWT.Dispose, disposeItemListener); | |
| 571 table.showItem(row); | |
| 572 } | |
| 573 if (this.column !is column && column !is null) { | |
| 574 this.column = column; | |
| 575 column.addListener(DWT.Dispose, disposeColumnListener); | |
| 576 column.addListener(DWT.Move, resizeListener); | |
| 577 column.addListener(DWT.Resize, resizeListener); | |
| 578 table.showColumn(column); | |
| 579 } | |
| 580 int columnIndex = column is null ? 0 : table.indexOf(column); | |
| 581 setBounds(row.getBounds(columnIndex)); | |
| 582 redraw(); | |
| 583 if (notify) { | |
| 584 notifyListeners(DWT.Selection, new Event()); | |
| 585 } | |
| 586 } | |
| 587 } | |
| 588 | |
| 589 public override void setVisible(bool visible) { | |
| 590 checkWidget(); | |
| 591 if (visible) _resize(); | |
| 592 super.setVisible(visible); | |
| 593 } | |
| 594 | |
| 595 /** | |
| 596 * Removes the listener from the collection of listeners who will | |
| 597 * be notified when the user changes the receiver's selection. | |
| 598 * | |
| 599 * @param listener the listener which should no longer be notified | |
| 600 * | |
| 601 * @exception IllegalArgumentException <ul> | |
| 602 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 603 * </ul> | |
| 604 * @exception DWTException <ul> | |
| 605 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 606 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 607 * </ul> | |
| 608 * | |
| 609 * @see SelectionListener | |
| 610 * @see #addSelectionListener(SelectionListener) | |
| 611 * | |
| 612 * @since 3.0 | |
| 613 */ | |
| 614 public void removeSelectionListener(SelectionListener listener) { | |
| 615 checkWidget(); | |
| 616 if (listener is null) { | |
| 617 DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 618 } | |
| 619 removeListener(DWT.Selection, listener); | |
| 620 removeListener(DWT.DefaultSelection, listener); | |
| 621 } | |
| 622 | |
| 623 void _resize() { | |
| 624 if (row is null) { | |
| 625 setBounds(-200, -200, 0, 0); | |
| 626 } else { | |
| 627 int columnIndex = column is null ? 0 : table.indexOf(column); | |
| 628 setBounds(row.getBounds(columnIndex)); | |
| 629 } | |
| 630 } | |
| 631 /** | |
| 632 * Returns the column over which the TableCursor is positioned. | |
| 633 * | |
| 634 * @return the column for the current position | |
| 635 * | |
| 636 * @exception DWTException <ul> | |
| 637 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 638 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 639 * </ul> | |
| 640 */ | |
| 641 public int getColumn() { | |
| 642 checkWidget(); | |
| 643 return column is null ? 0 : table.indexOf(column); | |
| 644 } | |
| 645 /** | |
| 213 | 646 * Returns the background color that the receiver will use to draw. |
| 647 * | |
| 648 * @return the receiver's background color | |
| 649 */ | |
| 650 public Color getBackground() { | |
| 651 checkWidget(); | |
| 652 if (background is null) { | |
| 653 return getDisplay().getSystemColor(BACKGROUND); | |
| 654 } | |
| 655 return background; | |
| 656 } | |
| 657 /** | |
| 658 * Returns the foreground color that the receiver will use to draw. | |
| 659 * | |
| 660 * @return the receiver's foreground color | |
| 661 */ | |
| 662 public Color getForeground() { | |
| 663 checkWidget(); | |
| 664 if (foreground is null) { | |
| 665 return getDisplay().getSystemColor(FOREGROUND); | |
| 666 } | |
| 667 return foreground; | |
| 668 } | |
| 669 /** | |
| 155 | 670 * Returns the row over which the TableCursor is positioned. |
| 671 * | |
| 672 * @return the item for the current position | |
| 673 * | |
| 674 * @exception DWTException <ul> | |
| 675 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 676 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 677 * </ul> | |
| 678 */ | |
| 679 public TableItem getRow() { | |
| 680 checkWidget(); | |
| 681 return row; | |
| 682 } | |
| 213 | 683 /** |
| 684 * Sets the receiver's background color to the color specified | |
| 685 * by the argument, or to the default system color for the control | |
| 686 * if the argument is null. | |
| 687 * <p> | |
| 688 * Note: This operation is a hint and may be overridden by the platform. | |
| 689 * For example, on Windows the background of a Button cannot be changed. | |
| 690 * </p> | |
| 691 * @param color the new color (or null) | |
| 692 * | |
| 693 * @exception IllegalArgumentException <ul> | |
| 694 * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> | |
| 695 * </ul> | |
| 696 * @exception DWTException <ul> | |
| 697 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 698 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 699 * </ul> | |
| 700 */ | |
| 155 | 701 public override void setBackground (Color color) { |
| 213 | 702 background = color; |
| 703 super.setBackground(getBackground()); | |
| 155 | 704 redraw(); |
| 705 } | |
| 213 | 706 /** |
| 707 * Sets the receiver's foreground color to the color specified | |
| 708 * by the argument, or to the default system color for the control | |
| 709 * if the argument is null. | |
| 710 * <p> | |
| 711 * Note: This operation is a hint and may be overridden by the platform. | |
| 712 * </p> | |
| 713 * @param color the new color (or null) | |
| 714 * | |
| 715 * @exception IllegalArgumentException <ul> | |
| 716 * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> | |
| 717 * </ul> | |
| 718 * @exception DWTException <ul> | |
| 719 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 720 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 721 * </ul> | |
| 722 */ | |
| 155 | 723 public override void setForeground (Color color) { |
| 213 | 724 foreground = color; |
| 725 super.setForeground(getForeground()); | |
| 155 | 726 redraw(); |
| 727 } | |
| 728 /** | |
| 729 * Positions the TableCursor over the cell at the given row and column in the parent table. | |
| 730 * | |
| 731 * @param row the index of the row for the cell to select | |
| 732 * @param column the index of column for the cell to select | |
| 733 * | |
| 734 * @exception DWTException <ul> | |
| 735 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 736 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 737 * </ul> | |
| 738 * | |
| 739 */ | |
| 740 public void setSelection(int row, int column) { | |
| 741 checkWidget(); | |
| 742 int columnCount = table.getColumnCount(); | |
| 743 int maxColumnIndex = columnCount is 0 ? 0 : columnCount - 1; | |
| 744 if (row < 0 | |
| 745 || row >= table.getItemCount() | |
| 746 || column < 0 | |
| 747 || column > maxColumnIndex) | |
| 748 DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 749 setRowColumn(row, column, false); | |
| 750 } | |
| 751 /** | |
| 752 * Positions the TableCursor over the cell at the given row and column in the parent table. | |
| 753 * | |
| 754 * @param row the TableItem of the row for the cell to select | |
| 755 * @param column the index of column for the cell to select | |
| 756 * | |
| 757 * @exception DWTException <ul> | |
| 758 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 759 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 760 * </ul> | |
| 761 * | |
| 762 */ | |
| 763 public void setSelection(TableItem row, int column) { | |
| 764 checkWidget(); | |
| 765 int columnCount = table.getColumnCount(); | |
| 766 int maxColumnIndex = columnCount is 0 ? 0 : columnCount - 1; | |
| 767 if (row is null | |
| 768 || row.isDisposed() | |
| 769 || column < 0 | |
| 770 || column > maxColumnIndex) | |
| 771 DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 772 setRowColumn(table.indexOf(row), column, false); | |
| 773 } | |
| 213 | 774 void unhookRowColumnListeners() { |
| 775 if (column !is null) { | |
| 776 column.removeListener(DWT.Dispose, disposeColumnListener); | |
| 777 column.removeListener(DWT.Move, resizeListener); | |
| 778 column.removeListener(DWT.Resize, resizeListener); | |
| 779 column = null; | |
| 780 } | |
| 781 if (row !is null) { | |
| 782 row.removeListener(DWT.Dispose, disposeItemListener); | |
| 783 row = null; | |
| 784 } | |
| 155 | 785 } |
| 213 | 786 } |