comparison dwt/custom/TableTreeItem.d @ 41:6337764516f1

Sync dwt/custom with dwt-linux (took copy of complete folder)
author Frank Benoit <benoit@tionex.de>
date Tue, 07 Oct 2008 16:29:55 +0200
parents 1a8b3cb347e0
children
comparison
equal deleted inserted replaced
40:fbe68c33eeee 41:6337764516f1
1 /******************************************************************************* 1 /*******************************************************************************
2 * Copyright (c) 2000, 2007 IBM Corporation and others. 2 * Copyright (c) 2000, 2008 IBM Corporation and others.
3 * All rights reserved. This program and the accompanying materials 3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0 4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at 5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html 6 * http://www.eclipse.org/legal/epl-v10.html
7 * 7 *
8 * Contributors: 8 * Contributors:
9 * IBM Corporation - initial API and implementation 9 * IBM Corporation - initial API and implementation
10 * Port to the D programming language:
11 * Frank Benoit <benoit@tionex.de>
10 *******************************************************************************/ 12 *******************************************************************************/
11 module dwt.custom; 13 module dwt.custom.TableTreeItem;
12 14
13 15
14 import dwt.*; 16
15 import dwt.graphics.*; 17 import dwt.DWT;
16 import dwt.widgets.*; 18 import dwt.DWTException;
19 import dwt.graphics.Color;
20 import dwt.graphics.Font;
21 import dwt.graphics.GC;
22 import dwt.graphics.Image;
23 import dwt.graphics.Rectangle;
24 import dwt.widgets.Event;
25 import dwt.widgets.Item;
26 import dwt.widgets.Table;
27 import dwt.widgets.TableItem;
28 import dwt.widgets.Widget;
29 import dwt.custom.TableTree;
30 import dwt.dwthelper.utils;
31
17 32
18 /** 33 /**
19 * A TableTreeItem is a selectable user interface object 34 * A TableTreeItem is a selectable user interface object
20 * that represents an item in a hierarchy of items in a 35 * that represents an item in a hierarchy of items in a
21 * TableTree. 36 * TableTree.
22 * 37 *
23 * @deprecated As of 3.1 use Tree, TreeItem and TreeColumn 38 * @deprecated As of 3.1 use Tree, TreeItem and TreeColumn
24 */ 39 */
25 public class TableTreeItem : Item { 40 public class TableTreeItem : Item {
26 TableItem tableItem; 41 TableItem tableItem;
27 TableTree parent; 42 TableTree parent;
28 TableTreeItem parentItem; 43 TableTreeItem parentItem;
29 TableTreeItem [] items = TableTree.EMPTY_ITEMS; 44 TableTreeItem [] items;
30 String[] texts = TableTree.EMPTY_TEXTS; 45 String[] texts;
31 Image[] images = TableTree.EMPTY_IMAGES; 46 Image[] images;
32 Color background; 47 Color background;
33 Color foreground; 48 Color foreground;
34 Font font; 49 Font font;
35 bool expanded; 50 bool expanded;
36 bool checked; 51 bool checked;
42 * and a style value describing its behavior and appearance. 57 * and a style value describing its behavior and appearance.
43 * The item is added to the end of the items maintained by its parent. 58 * The item is added to the end of the items maintained by its parent.
44 * <p> 59 * <p>
45 * The style value is either one of the style constants defined in 60 * The style value is either one of the style constants defined in
46 * class <code>DWT</code> which is applicable to instances of this 61 * class <code>DWT</code> which is applicable to instances of this
47 * class, or must be built by <em>bitwise OR</em>'ing together 62 * class, or must be built by <em>bitwise OR</em>'ing together
48 * (that is, using the <code>int</code> "|" operator) two or more 63 * (that is, using the <code>int</code> "|" operator) two or more
49 * of those <code>DWT</code> style constants. The class description 64 * of those <code>DWT</code> style constants. The class description
50 * lists the style constants that are applicable to the class. 65 * lists the style constants that are applicable to the class.
51 * Style bits are also inherited from superclasses. 66 * Style bits are also inherited from superclasses.
52 * </p> 67 * </p>
74 * a style value describing its behavior and appearance, and the index 89 * a style value describing its behavior and appearance, and the index
75 * at which to place it in the items maintained by its parent. 90 * at which to place it in the items maintained by its parent.
76 * <p> 91 * <p>
77 * The style value is either one of the style constants defined in 92 * The style value is either one of the style constants defined in
78 * class <code>DWT</code> which is applicable to instances of this 93 * class <code>DWT</code> which is applicable to instances of this
79 * class, or must be built by <em>bitwise OR</em>'ing together 94 * class, or must be built by <em>bitwise OR</em>'ing together
80 * (that is, using the <code>int</code> "|" operator) two or more 95 * (that is, using the <code>int</code> "|" operator) two or more
81 * of those <code>DWT</code> style constants. The class description 96 * of those <code>DWT</code> style constants. The class description
82 * lists the style constants that are applicable to the class. 97 * lists the style constants that are applicable to the class.
83 * Style bits are also inherited from superclasses. 98 * Style bits are also inherited from superclasses.
84 * </p> 99 * </p>
107 * and a style value describing its behavior and appearance. 122 * and a style value describing its behavior and appearance.
108 * The item is added to the end of the items maintained by its parent. 123 * The item is added to the end of the items maintained by its parent.
109 * <p> 124 * <p>
110 * The style value is either one of the style constants defined in 125 * The style value is either one of the style constants defined in
111 * class <code>DWT</code> which is applicable to instances of this 126 * class <code>DWT</code> which is applicable to instances of this
112 * class, or must be built by <em>bitwise OR</em>'ing together 127 * class, or must be built by <em>bitwise OR</em>'ing together
113 * (that is, using the <code>int</code> "|" operator) two or more 128 * (that is, using the <code>int</code> "|" operator) two or more
114 * of those <code>DWT</code> style constants. The class description 129 * of those <code>DWT</code> style constants. The class description
115 * lists the style constants that are applicable to the class. 130 * lists the style constants that are applicable to the class.
116 * Style bits are also inherited from superclasses. 131 * Style bits are also inherited from superclasses.
117 * </p> 132 * </p>
139 * a style value describing its behavior and appearance, and the index 154 * a style value describing its behavior and appearance, and the index
140 * at which to place it in the items maintained by its parent. 155 * at which to place it in the items maintained by its parent.
141 * <p> 156 * <p>
142 * The style value is either one of the style constants defined in 157 * The style value is either one of the style constants defined in
143 * class <code>DWT</code> which is applicable to instances of this 158 * class <code>DWT</code> which is applicable to instances of this
144 * class, or must be built by <em>bitwise OR</em>'ing together 159 * class, or must be built by <em>bitwise OR</em>'ing together
145 * (that is, using the <code>int</code> "|" operator) two or more 160 * (that is, using the <code>int</code> "|" operator) two or more
146 * of those <code>DWT</code> style constants. The class description 161 * of those <code>DWT</code> style constants. The class description
147 * lists the style constants that are applicable to the class. 162 * lists the style constants that are applicable to the class.
148 * Style bits are also inherited from superclasses. 163 * Style bits are also inherited from superclasses.
149 * </p> 164 * </p>
165 public this(TableTreeItem parent, int style, int index) { 180 public this(TableTreeItem parent, int style, int index) {
166 this (parent.getParent(), parent, style, index); 181 this (parent.getParent(), parent, style, index);
167 } 182 }
168 183
169 this(TableTree parent, TableTreeItem parentItem, int style, int index) { 184 this(TableTree parent, TableTreeItem parentItem, int style, int index) {
185
186 items = TableTree.EMPTY_ITEMS;
187 texts = TableTree.EMPTY_TEXTS;
188 images = TableTree.EMPTY_IMAGES;
189
170 super(parent, style); 190 super(parent, style);
171 this.parent = parent; 191 this.parent = parent;
172 this.parentItem = parentItem; 192 this.parentItem = parentItem;
173 if (parentItem is null) { 193 if (parentItem is null) {
174 194
175 /* Root items are visible immediately */ 195 /* Root items are visible immediately */
176 int tableIndex = parent.addItem(this, index); 196 int tableIndex = parent.addItem(this, index);
177 tableItem = new TableItem(parent.getTable(), style, tableIndex); 197 tableItem = new TableItem(parent.getTable(), style, tableIndex);
178 tableItem.setData(TableTree.ITEMID, this); 198 tableItem.setData(TableTree.ITEMID, this);
179 addCheck(); 199 addCheck();
204 tableItem.setGrayed(grayed); 224 tableItem.setGrayed(grayed);
205 } 225 }
206 void addItem(TableTreeItem item, int index) { 226 void addItem(TableTreeItem item, int index) {
207 if (item is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); 227 if (item is null) DWT.error(DWT.ERROR_NULL_ARGUMENT);
208 if (index < 0 || index > items.length) DWT.error(DWT.ERROR_INVALID_ARGUMENT); 228 if (index < 0 || index > items.length) DWT.error(DWT.ERROR_INVALID_ARGUMENT);
209 229
210 /* Now that item has a sub-node it must indicate that it can be expanded */ 230 /* Now that item has a sub-node it must indicate that it can be expanded */
211 if (items.length is 0 && index is 0) { 231 if (items.length is 0 && index is 0) {
212 if (tableItem !is null) { 232 if (tableItem !is null) {
213 Image image = expanded ? parent.getMinusImage() : parent.getPlusImage(); 233 Image image = expanded ? parent.getMinusImage() : parent.getPlusImage();
214 tableItem.setImage(0, image); 234 tableItem.setImage(0, image);
215 } 235 }
216 } 236 }
217 237
218 /* Put the item in the items list */ 238 /* Put the item in the items list */
219 TableTreeItem[] newItems = new TableTreeItem[items.length + 1]; 239 TableTreeItem[] newItems = new TableTreeItem[items.length + 1];
220 System.arraycopy(items, 0, newItems, 0, index); 240 System.arraycopy(items, 0, newItems, 0, index);
221 newItems[index] = item; 241 newItems[index] = item;
222 System.arraycopy(items, index, newItems, index + 1, items.length - index); 242 System.arraycopy(items, index, newItems, index + 1, items.length - index);
226 246
227 /** 247 /**
228 * Returns the receiver's background color. 248 * Returns the receiver's background color.
229 * 249 *
230 * @return the background color 250 * @return the background color
231 * 251 *
232 * @exception DWTException <ul> 252 * @exception DWTException <ul>
233 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 253 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
234 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 254 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
235 * </ul> 255 * </ul>
236 * 256 *
237 * @since 2.0 257 * @since 2.0
238 * 258 *
239 */ 259 */
240 public Color getBackground () { 260 public Color getBackground () {
241 checkWidget (); 261 checkWidget ();
242 return (background is null) ? parent.getBackground() : background; 262 return (background is null) ? parent.getBackground() : background;
243 } 263 }
288 * 308 *
289 * @exception DWTException <ul> 309 * @exception DWTException <ul>
290 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 310 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
291 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 311 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
292 * </ul> 312 * </ul>
293 * 313 *
294 * @since 2.1 314 * @since 2.1
295 */ 315 */
296 public bool getGrayed () { 316 public bool getGrayed () {
297 checkWidget(); 317 checkWidget();
298 if (tableItem is null) return grayed; 318 if (tableItem is null) return grayed;
334 * 354 *
335 * @exception DWTException <ul> 355 * @exception DWTException <ul>
336 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 356 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
337 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 357 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
338 * </ul> 358 * </ul>
339 * 359 *
340 * @since 2.0 360 * @since 2.0
341 * 361 *
342 */ 362 */
343 public Color getForeground () { 363 public Color getForeground () {
344 checkWidget (); 364 checkWidget ();
345 return (foreground is null) ? parent.getForeground() : foreground; 365 return (foreground is null) ? parent.getForeground() : foreground;
346 } 366 }
349 * <p> 369 * <p>
350 * The image in column 0 is reserved for the [+] and [-] 370 * The image in column 0 is reserved for the [+] and [-]
351 * images of the tree, therefore getImage(0) will return null. 371 * images of the tree, therefore getImage(0) will return null.
352 * 372 *
353 * @return the image at index 0 373 * @return the image at index 0
354 * 374 *
355 * @exception DWTException <ul> 375 * @exception DWTException <ul>
356 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 376 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
357 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 377 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
358 * </ul> 378 * </ul>
359 */ 379 */
360 public Image getImage () { 380 public override Image getImage () {
361 checkWidget(); 381 checkWidget();
362 return getImage(0); 382 return getImage(0);
363 } 383 }
364 384
365 /** 385 /**
396 * </ul> 416 * </ul>
397 * @exception DWTException <ul> 417 * @exception DWTException <ul>
398 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 418 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
399 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 419 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
400 * </ul> 420 * </ul>
401 * 421 *
402 * @since 3.1 422 * @since 3.1
403 */ 423 */
404 public TableTreeItem getItem (int index) { 424 public TableTreeItem getItem (int index) {
405 checkWidget(); 425 checkWidget();
406 int count = items.length; 426 int count = items.length;
423 * Returns an array of <code>TableTreeItem</code>s which are the 443 * Returns an array of <code>TableTreeItem</code>s which are the
424 * direct item children of the receiver. 444 * direct item children of the receiver.
425 * <p> 445 * <p>
426 * Note: This is not the actual structure used by the receiver 446 * Note: This is not the actual structure used by the receiver
427 * to maintain its list of items, so modifying the array will 447 * to maintain its list of items, so modifying the array will
428 * not affect the receiver. 448 * not affect the receiver.
429 * </p> 449 * </p>
430 * 450 *
431 * @return the receiver's items 451 * @return the receiver's items
432 */ 452 */
433 public TableTreeItem[] getItems () { 453 public TableTreeItem[] getItems () {
466 */ 486 */
467 public TableTreeItem getParentItem () { 487 public TableTreeItem getParentItem () {
468 //checkWidget(); 488 //checkWidget();
469 return parentItem; 489 return parentItem;
470 } 490 }
471 public String getText () { 491 public override String getText () {
472 checkWidget(); 492 checkWidget();
473 return getText(0); 493 return getText(0);
474 } 494 }
475 495
476 /** 496 /**
495 return tableItem !is null; 515 return tableItem !is null;
496 } 516 }
497 517
498 /** 518 /**
499 * Gets the index of the specified item. 519 * Gets the index of the specified item.
500 * 520 *
501 * <p>The widget is searched starting at 0 until an 521 * <p>The widget is searched starting at 0 until an
502 * item is found that is equal to the search item. 522 * item is found that is equal to the search item.
503 * If no item is found, -1 is returned. Indexing 523 * If no item is found, -1 is returned. Indexing
504 * is zero based. This index is relative to the parent only. 524 * is zero based. This index is relative to the parent only.
505 * 525 *
506 * @param item the search item 526 * @param item the search item
507 * @return the index of the item or -1 if the item is not found 527 * @return the index of the item or -1 if the item is not found
508 * 528 *
509 */ 529 */
510 public int indexOf (TableTreeItem item) { 530 public int indexOf (TableTreeItem item) {
511 //checkWidget(); 531 //checkWidget();
512 for (int i = 0; i < items.length; i++) { 532 for (int i = 0; i < items.length; i++) {
513 if (items[i] is item) return i; 533 if (items[i] is item) return i;
514 } 534 }
515 return -1; 535 return -1;
516 } 536 }
527 } 547 }
528 for (int i = 0; i < items.length; i++) { 548 for (int i = 0; i < items.length; i++) {
529 items[i].expandAll(notify); 549 items[i].expandAll(notify);
530 } 550 }
531 } 551 }
532 int expandedIndexOf (TableTreeItem item) { 552 int expandedIndexOf (TableTreeItem item) {
533 int index = 0; 553 int index = 0;
534 for (int i = 0; i < items.length; i++) { 554 for (int i = 0; i < items.length; i++) {
535 if (items[i] is item) return index; 555 if (items[i] is item) return index;
536 if (items[i].expanded) index += items[i].visibleChildrenCount (); 556 if (items[i].expanded) index += items[i].visibleChildrenCount ();
537 index++; 557 index++;
547 } 567 }
548 } 568 }
549 return count; 569 return count;
550 } 570 }
551 571
552 public void dispose () { 572 public override void dispose () {
553 if (isDisposed()) return; 573 if (isDisposed()) return;
554 for (int i = items.length - 1; i >= 0; i--) { 574 for (int i = items.length - 1; i >= 0; i--) {
555 items[i].dispose(); 575 items[i].dispose();
556 } 576 }
557 super.dispose(); 577 super.dispose();
591 * Sets the receiver's background color to the color specified 611 * Sets the receiver's background color to the color specified
592 * by the argument, or to the default system color for the item 612 * by the argument, or to the default system color for the item
593 * if the argument is null. 613 * if the argument is null.
594 * 614 *
595 * @param color the new color (or null) 615 * @param color the new color (or null)
596 * 616 *
597 * @exception IllegalArgumentException <ul> 617 * @exception IllegalArgumentException <ul>
598 * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> 618 * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
599 * </ul> 619 * </ul>
600 * @exception DWTException <ul> 620 * @exception DWTException <ul>
601 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 621 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
602 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 622 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
603 * </ul> 623 * </ul>
604 * 624 *
605 * @since 2.0 625 * @since 2.0
606 * 626 *
607 */ 627 */
608 public void setBackground (Color color) { 628 public void setBackground (Color color) {
609 checkWidget (); 629 checkWidget ();
610 if (color !is null && color.isDisposed ()) { 630 if (color !is null && color.isDisposed ()) {
611 DWT.error (DWT.ERROR_INVALID_ARGUMENT); 631 DWT.error (DWT.ERROR_INVALID_ARGUMENT);
615 } 635 }
616 background = color; 636 background = color;
617 } 637 }
618 638
619 /** 639 /**
620 * Sets the checked state of the checkbox for this item. This state change 640 * Sets the checked state of the checkbox for this item. This state change
621 * only applies if the Table was created with the DWT.CHECK style. 641 * only applies if the Table was created with the DWT.CHECK style.
622 * 642 *
623 * @param checked the new checked state of the checkbox 643 * @param checked the new checked state of the checkbox
624 * 644 *
625 * @exception DWTException <ul> 645 * @exception DWTException <ul>
636 } 656 }
637 this.checked = checked; 657 this.checked = checked;
638 } 658 }
639 659
640 /** 660 /**
641 * Sets the grayed state of the checkbox for this item. This state change 661 * Sets the grayed state of the checkbox for this item. This state change
642 * only applies if the Table was created with the DWT.CHECK style. 662 * only applies if the Table was created with the DWT.CHECK style.
643 * 663 *
644 * @param grayed the new grayed state of the checkbox; 664 * @param grayed the new grayed state of the checkbox;
645 * 665 *
646 * @exception DWTException <ul> 666 * @exception DWTException <ul>
647 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 667 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
648 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 668 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
649 * </ul> 669 * </ul>
650 * 670 *
651 * @since 2.1 671 * @since 2.1
652 */ 672 */
653 public void setGrayed (bool grayed) { 673 public void setGrayed (bool grayed) {
654 checkWidget(); 674 checkWidget();
655 Table table = parent.getTable(); 675 Table table = parent.getTable();
691 * for that kind of control if the argument is null. 711 * for that kind of control if the argument is null.
692 * 712 *
693 * @param font the new font (or null) 713 * @param font the new font (or null)
694 * 714 *
695 * @exception IllegalArgumentException <ul> 715 * @exception IllegalArgumentException <ul>
696 * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> 716 * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
697 * </ul> 717 * </ul>
698 * @exception DWTException <ul> 718 * @exception DWTException <ul>
699 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 719 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
700 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 720 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
701 * </ul> 721 * </ul>
702 * 722 *
703 * @since 3.0 723 * @since 3.0
704 */ 724 */
705 public void setFont (Font font){ 725 public void setFont (Font font){
706 checkWidget (); 726 checkWidget ();
707 if (font !is null && font.isDisposed ()) { 727 if (font !is null && font.isDisposed ()) {
718 * if the argument is null. 738 * if the argument is null.
719 * 739 *
720 * @param color the new color (or null) 740 * @param color the new color (or null)
721 * 741 *
722 * @since 2.0 742 * @since 2.0
723 * 743 *
724 * @exception IllegalArgumentException <ul> 744 * @exception IllegalArgumentException <ul>
725 * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> 745 * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
726 * </ul> 746 * </ul>
727 * @exception DWTException <ul> 747 * @exception DWTException <ul>
728 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 748 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
729 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 749 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
730 * </ul> 750 * </ul>
731 * 751 *
732 * @since 2.0 752 * @since 2.0
733 * 753 *
734 */ 754 */
735 public void setForeground (Color color) { 755 public void setForeground (Color color) {
736 checkWidget (); 756 checkWidget ();
737 if (color !is null && color.isDisposed ()) { 757 if (color !is null && color.isDisposed ()) {
738 DWT.error (DWT.ERROR_INVALID_ARGUMENT); 758 DWT.error (DWT.ERROR_INVALID_ARGUMENT);
776 * The image can be null. 796 * The image can be null.
777 * The image in column 0 is reserved for the [+] and [-] 797 * The image in column 0 is reserved for the [+] and [-]
778 * images of the tree, therefore do nothing. 798 * images of the tree, therefore do nothing.
779 * 799 *
780 * @param image the new image or null 800 * @param image the new image or null
781 * 801 *
782 * @exception DWTException <ul> 802 * @exception DWTException <ul>
783 * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li> 803 * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
784 * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li> 804 * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
785 * </ul> 805 * </ul>
786 */ 806 */
787 public void setImage (Image image) { 807 public override void setImage (Image image) {
788 setImage(0, image); 808 setImage(0, image);
789 } 809 }
790 810
791 /** 811 /**
792 * Sets the widget text. 812 * Sets the widget text.
797 * number. 817 * number.
798 * 818 *
799 * @param index the column number 819 * @param index the column number
800 * @param text the new text 820 * @param text the new text
801 * 821 *
802 * @exception IllegalArgumentException <ul>
803 * <li>ERROR_NULL_ARGUMENT - if the text is null</li>
804 * </ul>
805 * @exception DWTException <ul> 822 * @exception DWTException <ul>
806 * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li> 823 * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
807 * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li> 824 * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
808 * </ul> 825 * </ul>
809 */ 826 */
810 public void setText(int index, String text) { 827 public void setText(int index, String text) {
811 checkWidget(); 828 checkWidget();
812 if (text is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); 829 // DWT extension: allow null for zero length string
830 //if (text is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
813 int columnCount = Math.max(parent.getTable().getColumnCount(), 1); 831 int columnCount = Math.max(parent.getTable().getColumnCount(), 1);
814 if (index < 0 || index >= columnCount) return; 832 if (index < 0 || index >= columnCount) return;
815 if (texts.length < columnCount) { 833 if (texts.length < columnCount) {
816 String[] newTexts = new String[columnCount]; 834 String[] newTexts = new String[columnCount];
817 System.arraycopy(texts, 0, newTexts, 0, texts.length); 835 System.arraycopy(texts, 0, newTexts, 0, texts.length);
818 texts = newTexts; 836 texts = newTexts;
819 } 837 }
820 texts[index] = text; 838 texts[index] = text;
821 if (tableItem !is null) tableItem.setText(index, text); 839 if (tableItem !is null) tableItem.setText(index, text);
822 } 840 }
823 public void setText (String String) { 841 public override void setText (String string) {
824 setText(0, String); 842 setText(0, string);
825 } 843 }
826 844
827 void setVisible (bool show) { 845 void setVisible (bool show) {
828 if (parentItem is null) return; // this is a root and can not be toggled between visible and hidden 846 if (parentItem is null) return; // this is a root and can not be toggled between visible and hidden
829 if (getVisible() is show) return; 847 if (getVisible() is show) return;
860 } 878 }
861 } else { 879 } else {
862 tableItem.setImage(0, parent.getPlusImage()); 880 tableItem.setImage(0, parent.getPlusImage());
863 } 881 }
864 } 882 }
865 883
866 } else { 884 } else {
867 885
868 for (int i = 0, length = items.length; i < length; i++) { 886 for (int i = 0, length = items.length; i < length; i++) {
869 items[i].setVisible(false); 887 items[i].setVisible(false);
870 } 888 }