Mercurial > projects > dwt-linux
annotate dwt/widgets/CoolBar.d @ 259:c0d810de7093
Update SWT 3.4M7 to 3.4
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 29 Jun 2008 14:33:38 +0200 |
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1 /******************************************************************************* |
259 | 2 * Copyright (c) 2000, 2008 IBM Corporation and others. |
76 | 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 | |
108 | 10 * Port to the D programming language: |
11 * Frank Benoit <benoit@tionex.de> | |
76 | 12 *******************************************************************************/ |
13 module dwt.widgets.CoolBar; | |
14 | |
15 import dwt.DWT; | |
16 import dwt.DWTException; | |
17 import dwt.graphics.Color; | |
18 import dwt.graphics.Cursor; | |
19 import dwt.graphics.GC; | |
20 import dwt.graphics.Point; | |
21 import dwt.graphics.Rectangle; | |
22 import dwt.widgets.Composite; | |
23 import dwt.widgets.CoolItem; | |
24 import dwt.widgets.Event; | |
25 import dwt.widgets.Control; | |
26 import dwt.widgets.Listener; | |
255
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28 import dwt.dwthelper.utils; |
76 | 29 |
30 /** | |
31 * Instances of this class provide an area for dynamically | |
32 * positioning the items they contain. | |
33 * <p> | |
34 * The item children that may be added to instances of this class | |
35 * must be of type <code>CoolItem</code>. | |
36 * </p><p> | |
37 * Note that although this class is a subclass of <code>Composite</code>, | |
38 * it does not make sense to add <code>Control</code> children to it, | |
39 * or set a layout on it. | |
40 * </p><p> | |
41 * <dl> | |
42 * <dt><b>Styles:</b></dt> | |
43 * <dd>FLAT, HORIZONTAL, VERTICAL</dd> | |
44 * <dt><b>Events:</b></dt> | |
45 * <dd>(none)</dd> | |
46 * </dl> | |
47 * </p><p> | |
48 * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. | |
49 * </p><p> | |
50 * IMPORTANT: This class is <em>not</em> intended to be subclassed. | |
51 * </p> | |
259 | 52 * |
53 * @see <a href="http://www.eclipse.org/swt/snippets/#coolbar">CoolBar snippets</a> | |
54 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: ControlExample</a> | |
55 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
76 | 56 */ |
57 public class CoolBar : Composite { | |
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58 |
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59 alias Composite.computeSize computeSize; |
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60 alias Composite.setCursor setCursor; |
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61 |
76 | 62 CoolItem[][] items; |
63 CoolItem[] originalItems; | |
64 Cursor hoverCursor, dragCursor, cursor; | |
65 CoolItem dragging = null; | |
66 int mouseXOffset, itemXOffset; | |
67 bool isLocked = false; | |
68 bool inDispose = false; | |
69 static const int ROW_SPACING = 2; | |
70 static const int CLICK_DISTANCE = 3; | |
71 static const int DEFAULT_COOLBAR_WIDTH = 0; | |
72 static const int DEFAULT_COOLBAR_HEIGHT = 0; | |
73 | |
74 /** | |
75 * Constructs a new instance of this class given its parent | |
76 * and a style value describing its behavior and appearance. | |
77 * <p> | |
78 * The style value is either one of the style constants defined in | |
79 * class <code>DWT</code> which is applicable to instances of this | |
80 * class, or must be built by <em>bitwise OR</em>'ing together | |
81 * (that is, using the <code>int</code> "|" operator) two or more | |
82 * of those <code>DWT</code> style constants. The class description | |
83 * lists the style constants that are applicable to the class. | |
84 * Style bits are also inherited from superclasses. | |
85 * </p> | |
86 * | |
87 * @param parent a composite control which will be the parent of the new instance (cannot be null) | |
88 * @param style the style of control to construct | |
89 * | |
90 * @exception IllegalArgumentException <ul> | |
91 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> | |
92 * </ul> | |
93 * @exception DWTException <ul> | |
94 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> | |
95 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> | |
96 * </ul> | |
97 * | |
98 * @see DWT | |
99 * @see Widget#checkSubclass | |
100 * @see Widget#getStyle | |
101 */ | |
102 public this (Composite parent, int style) { | |
103 super (parent, checkStyle(style)); | |
104 if ((style & DWT.VERTICAL) !is 0) { | |
105 this.style |= DWT.VERTICAL; | |
106 hoverCursor = new Cursor(display, DWT.CURSOR_SIZENS); | |
107 } else { | |
108 this.style |= DWT.HORIZONTAL; | |
109 hoverCursor = new Cursor(display, DWT.CURSOR_SIZEWE); | |
110 } | |
111 dragCursor = new Cursor(display, DWT.CURSOR_SIZEALL); | |
112 Listener listener = new class () Listener { | |
113 public void handleEvent(Event event) { | |
114 switch (event.type) { | |
115 case DWT.Dispose: onDispose(event); break; | |
116 case DWT.MouseDown: onMouseDown(event); break; | |
117 case DWT.MouseExit: onMouseExit(); break; | |
118 case DWT.MouseMove: onMouseMove(event); break; | |
119 case DWT.MouseUp: onMouseUp(event); break; | |
120 case DWT.MouseDoubleClick: onMouseDoubleClick(event); break; | |
121 case DWT.Paint: onPaint(event); break; | |
122 case DWT.Resize: onResize(); break; | |
123 default: | |
124 } | |
125 } | |
126 }; | |
127 int[] events = [ | |
128 DWT.Dispose, | |
129 DWT.MouseDown, | |
130 DWT.MouseExit, | |
131 DWT.MouseMove, | |
132 DWT.MouseUp, | |
133 DWT.MouseDoubleClick, | |
134 DWT.Paint, | |
135 DWT.Resize | |
136 ]; | |
137 for (int i = 0; i < events.length; i++) { | |
138 addListener(events[i], listener); | |
139 } | |
140 } | |
240 | 141 static int checkStyle (int style) { |
76 | 142 style |= DWT.NO_FOCUS; |
143 return (style | DWT.NO_REDRAW_RESIZE) & ~(DWT.V_SCROLL | DWT.H_SCROLL); | |
144 } | |
145 void _setCursor (Cursor cursor) { | |
146 if (this.cursor !is null) return; | |
147 super.setCursor (cursor); | |
148 } | |
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149 protected override void checkSubclass () { |
76 | 150 if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); |
151 } | |
152 | |
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153 public override Point computeSize (int wHint, int hHint, bool changed) { |
76 | 154 checkWidget(); |
155 int width = 0, height = 0; | |
156 wrapItems((style & DWT.VERTICAL) !is 0 ? hHint : wHint); | |
157 bool flat = (style & DWT.FLAT) !is 0; | |
158 for (int row = 0; row < items.length; row++) { | |
159 int rowWidth = 0, rowHeight = 0; | |
160 for (int i = 0; i < items[row].length; i++) { | |
161 CoolItem item = items[row][i]; | |
162 rowWidth += item.preferredWidth; | |
163 rowHeight = Math.max(rowHeight, item.preferredHeight); | |
164 } | |
165 height += rowHeight; | |
166 if (!flat && row > 0) height += ROW_SPACING; | |
167 width = Math.max(width, rowWidth); | |
168 } | |
169 wrapItems(getWidth()); | |
170 if (width is 0) width = DEFAULT_COOLBAR_WIDTH; | |
171 if (height is 0) height = DEFAULT_COOLBAR_HEIGHT; | |
172 if (wHint !is DWT.DEFAULT) width = wHint; | |
173 if (hHint !is DWT.DEFAULT) height = hHint; | |
174 Rectangle trim = computeTrim(0, 0, width, height); | |
175 return fixPoint(trim.width, trim.height); | |
176 } | |
177 CoolItem getGrabbedItem(int x, int y) { | |
178 for (int row = 0; row < items.length; row++) { | |
179 for (int i = 0; i < items[row].length; i++) { | |
180 CoolItem item = items[row][i]; | |
181 Rectangle bounds = item.internalGetBounds(); | |
182 bounds.width = CoolItem.MINIMUM_WIDTH; | |
183 if (bounds.x > x) break; | |
184 if (bounds.y > y) return null; | |
185 if (bounds.contains(x, y)) { | |
186 return item; | |
187 } | |
188 } | |
189 } | |
190 return null; | |
191 } | |
192 /** | |
193 * Returns the item that is currently displayed at the given, | |
194 * zero-relative index. Throws an exception if the index is | |
195 * out of range. | |
196 * | |
197 * @param index the visual index of the item to return | |
198 * @return the item at the given visual index | |
199 * | |
200 * @exception IllegalArgumentException <ul> | |
201 * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> | |
202 * </ul> | |
203 * @exception DWTException <ul> | |
204 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
205 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
206 * </ul> | |
207 */ | |
208 public CoolItem getItem (int index) { | |
209 checkWidget(); | |
210 if (index < 0) error (DWT.ERROR_INVALID_RANGE); | |
211 for (int row = 0; row < items.length; row++) { | |
212 if (items[row].length > index) { | |
213 return items[row][index]; | |
214 } else { | |
215 index -= items[row].length; | |
216 } | |
217 } | |
218 error (DWT.ERROR_INVALID_RANGE); | |
219 return null; | |
220 } | |
221 /** | |
222 * Returns the number of items contained in the receiver. | |
223 * | |
224 * @return the number of items | |
225 * | |
226 * @exception DWTException <ul> | |
227 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
228 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
229 * </ul> | |
230 */ | |
231 public int getItemCount () { | |
232 checkWidget(); | |
233 return originalItems.length; | |
234 } | |
235 /** | |
236 * Returns an array of <code>CoolItem</code>s in the order | |
237 * in which they are currently being displayed. | |
238 * <p> | |
239 * Note: This is not the actual structure used by the receiver | |
240 * to maintain its list of items, so modifying the array will | |
241 * not affect the receiver. | |
242 * </p> | |
243 * | |
244 * @return the receiver's items in their current visual order | |
245 * | |
246 * @exception DWTException <ul> | |
247 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
248 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
249 * </ul> | |
250 */ | |
251 public CoolItem [] getItems () { | |
252 checkWidget(); | |
253 CoolItem [] result = new CoolItem [getItemCount()]; | |
254 int offset = 0; | |
255 for (int row = 0; row < items.length; row++) { | |
256 System.arraycopy(items[row], 0, result, offset, items[row].length); | |
257 offset += items[row].length; | |
258 } | |
259 return result; | |
260 } | |
261 Point findItem (CoolItem item) { | |
262 for (int row = 0; row < items.length; row++) { | |
263 for (int i = 0; i < items[row].length; i++) { | |
264 if (items[row][i] ==/*eq*/ item ) return new Point(i, row); | |
265 } | |
266 } | |
267 return new Point(-1, -1); | |
268 } | |
269 void fixEvent (Event event) { | |
270 if ((style & DWT.VERTICAL) !is 0) { | |
271 int tmp = event.x; | |
272 event.x = event.y; | |
273 event.y = tmp; | |
274 } | |
275 } | |
276 Rectangle fixRectangle (int x, int y, int width, int height) { | |
277 if ((style & DWT.VERTICAL) !is 0) { | |
278 return new Rectangle(y, x, height, width); | |
279 } | |
280 return new Rectangle(x, y, width, height); | |
281 } | |
282 Point fixPoint (int x, int y) { | |
283 if ((style & DWT.VERTICAL) !is 0) { | |
284 return new Point(y, x); | |
285 } | |
286 return new Point(x, y); | |
287 } | |
288 /** | |
289 * Searches the receiver's items in the order they are currently | |
290 * being displayed, starting at the first item (index 0), until | |
291 * an item is found that is equal to the argument, and returns | |
292 * the index of that item. If no item is found, returns -1. | |
293 * | |
294 * @param item the search item | |
295 * @return the visual order index of the search item, or -1 if the item is not found | |
296 * | |
297 * @exception IllegalArgumentException <ul> | |
298 * <li>ERROR_NULL_ARGUMENT - if the item is null</li> | |
299 * <li>ERROR_INVALID_ARGUMENT - if the item is disposed</li> | |
300 * </ul> | |
301 * @exception DWTException <ul> | |
302 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
303 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
304 * </ul> | |
305 */ | |
306 public int indexOf (CoolItem item) { | |
307 checkWidget(); | |
308 if (item is null) error (DWT.ERROR_NULL_ARGUMENT); | |
309 if (item.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT); | |
310 int answer = 0; | |
311 for (int row = 0; row < items.length; row++) { | |
312 for (int i = 0; i < items[row].length; i++) { | |
313 if (items[row][i] ==/*eq*/ item) { | |
314 return answer; | |
315 } else { | |
316 answer++; | |
317 } | |
318 } | |
319 } | |
320 return -1; | |
321 } | |
322 /** | |
323 * Insert the item into the row. Adjust the x and width values | |
324 * appropriately. | |
325 */ | |
326 void insertItemIntoRow(CoolItem item, int rowIndex, int x_root) { | |
327 int barWidth = getWidth(); | |
328 int rowY = items[rowIndex][0].internalGetBounds().y; | |
240 | 329 int x = Math.max(0, Math.abs(x_root - toDisplay(new Point(0, 0)).x)); |
76 | 330 |
331 /* Find the insertion index and add the item. */ | |
332 int index; | |
333 for (index = 0; index < items[rowIndex].length; index++) { | |
334 if (x < items[rowIndex][index].internalGetBounds().x) break; | |
335 } | |
336 if (index is 0) { | |
337 item.wrap = true; | |
338 items[rowIndex][0].wrap = false; | |
339 } | |
340 int oldLength = items[rowIndex].length; | |
341 CoolItem[] newRow = new CoolItem[oldLength + 1]; | |
342 System.arraycopy(items[rowIndex], 0, newRow, 0, index); | |
343 newRow[index] = item; | |
344 System.arraycopy(items[rowIndex], index, newRow, index + 1, oldLength - index); | |
345 items[rowIndex] = newRow; | |
346 | |
347 /* Adjust the width of the item to the left. */ | |
348 if (index > 0) { | |
349 CoolItem left = items[rowIndex][index - 1]; | |
350 Rectangle leftBounds = left.internalGetBounds(); | |
351 int newWidth = x - leftBounds.x; | |
352 if (newWidth < left.internalGetMinimumWidth()) { | |
353 x += left.internalGetMinimumWidth() - newWidth; | |
354 newWidth = left.internalGetMinimumWidth(); | |
355 } | |
356 left.setBounds(leftBounds.x, leftBounds.y, newWidth, leftBounds.height); | |
357 left.requestedWidth = newWidth; | |
358 } | |
359 | |
360 /* Set the item's bounds. */ | |
361 int width = 0, height = item.internalGetBounds().height; | |
362 if (index < items[rowIndex].length - 1) { | |
363 CoolItem right = items[rowIndex][index + 1]; | |
364 width = right.internalGetBounds().x - x; | |
365 if (width < right.internalGetMinimumWidth()) { | |
366 moveRight(right, right.internalGetMinimumWidth() - width); | |
367 width = right.internalGetBounds().x - x; | |
368 } | |
369 item.setBounds(x, rowY, width, height); | |
370 if (width < item.internalGetMinimumWidth()) moveLeft(item, item.internalGetMinimumWidth() - width); | |
371 } else { | |
372 width = Math.max(item.internalGetMinimumWidth(), barWidth - x); | |
373 item.setBounds(x, rowY, width, height); | |
374 if (x + width > barWidth) moveLeft(item, x + width - barWidth); | |
375 } | |
376 Rectangle bounds = item.internalGetBounds(); | |
377 item.requestedWidth = bounds.width; | |
378 internalRedraw(bounds.x, bounds.y, item.internalGetMinimumWidth(), bounds.height); | |
379 } | |
380 void internalRedraw (int x, int y, int width, int height) { | |
381 if ((style & DWT.VERTICAL) !is 0) { | |
382 redraw (y, x, height, width, false); | |
383 } else { | |
384 redraw (x, y, width, height, false); | |
385 } | |
386 } | |
387 void createItem (CoolItem item, int index) { | |
388 int itemCount = getItemCount(), row = 0; | |
389 if (!(0 <= index && index <= itemCount)) error (DWT.ERROR_INVALID_RANGE); | |
390 if (items.length is 0) { | |
391 items = new CoolItem[][]( 1,1 ); | |
392 items[0][0] = item; | |
393 } else { | |
394 int i = index; | |
395 /* find the row to insert into */ | |
396 if (index < itemCount) { | |
397 while (i > items[row].length) { | |
398 i -= items[row].length; | |
399 row++; | |
400 } | |
401 } else { | |
402 row = items.length - 1; | |
403 i = items[row].length; | |
404 } | |
405 | |
406 // Set the last item in the row to the preferred size | |
407 // and add the new one just to it's right | |
408 int lastIndex = items[row].length - 1; | |
409 CoolItem lastItem = items[row][lastIndex]; | |
410 if (lastItem.ideal) { | |
411 Rectangle bounds = lastItem.internalGetBounds(); | |
412 bounds.width = lastItem.preferredWidth; | |
413 bounds.height = lastItem.preferredHeight; | |
414 lastItem.requestedWidth = lastItem.preferredWidth; | |
415 lastItem.setBounds(bounds.x, bounds.y, bounds.width, bounds.height); | |
416 } | |
417 if (i is 0) { | |
418 item.wrap = true; | |
419 items[row][0].wrap = false; | |
420 } | |
421 int oldLength = items[row].length; | |
422 CoolItem[] newRow = new CoolItem[oldLength + 1]; | |
423 System.arraycopy(items[row], 0, newRow, 0, i); | |
424 newRow[i] = item; | |
425 System.arraycopy(items[row], i, newRow, i + 1, oldLength - i); | |
426 items[row] = newRow; | |
427 } | |
428 item.requestedWidth = CoolItem.MINIMUM_WIDTH; | |
429 | |
430 int length = originalItems.length; | |
431 CoolItem [] newOriginals = new CoolItem [length + 1]; | |
432 System.arraycopy (originalItems, 0, newOriginals, 0, index); | |
433 System.arraycopy (originalItems, index, newOriginals, index + 1, length - index); | |
434 newOriginals [index] = item; | |
435 originalItems = newOriginals; | |
436 layoutItems(); | |
437 | |
438 } | |
439 void destroyItem(CoolItem item) { | |
440 if (inDispose) return; | |
441 int row = findItem(item).y; | |
442 if (row is -1) return; | |
443 Rectangle bounds = item.internalGetBounds(); | |
444 removeItemFromRow(item, row, true); | |
445 | |
446 int index = 0; | |
447 while (index < originalItems.length) { | |
448 if (originalItems [index] is item) break; | |
449 index++; | |
450 } | |
451 int length = originalItems.length - 1; | |
452 CoolItem [] newOriginals = new CoolItem [length]; | |
453 System.arraycopy (originalItems, 0, newOriginals, 0, index); | |
454 System.arraycopy (originalItems, index + 1, newOriginals, index, length - index); | |
455 originalItems = newOriginals; | |
456 | |
457 internalRedraw(bounds.x, bounds.y, CoolItem.MINIMUM_WIDTH, bounds.height); | |
458 relayout(); | |
459 } | |
460 void moveDown(CoolItem item, int x_root) { | |
461 int oldRowIndex = findItem(item).y; | |
462 bool resize = false; | |
463 if (items[oldRowIndex].length is 1) { | |
464 resize = true; | |
465 /* If this is the only item in the bottom row, don't move it. */ | |
466 if (oldRowIndex is items.length - 1) return; | |
467 } | |
468 int newRowIndex = (items[oldRowIndex].length is 1) ? oldRowIndex : oldRowIndex + 1; | |
469 removeItemFromRow(item, oldRowIndex, false); | |
470 Rectangle old = item.internalGetBounds(); | |
471 internalRedraw(old.x, old.y, CoolItem.MINIMUM_WIDTH, old.height); | |
472 if (newRowIndex is items.length) { | |
473 /* Create a new bottom row for the item. */ | |
474 CoolItem[][] newRows = new CoolItem[][](items.length + 1); | |
475 SimpleType!(CoolItem[]).arraycopy(items, 0, newRows, 0, items.length); | |
476 int row = items.length; | |
477 newRows[row] = new CoolItem[1]; | |
478 newRows[row][0] = item; | |
479 items = newRows; | |
480 resize = true; | |
481 item.wrap = true; | |
482 } else { | |
483 insertItemIntoRow(item, newRowIndex, x_root); | |
484 } | |
485 if (resize) { | |
486 relayout(); | |
487 } else { | |
488 layoutItems(); | |
489 } | |
490 } | |
491 void moveLeft(CoolItem item, int pixels) { | |
492 Point point = findItem(item); | |
493 int row = point.y; | |
494 int index = point.x; | |
495 if (index is 0) return; | |
496 Rectangle bounds = item.internalGetBounds(); | |
497 int minSpaceOnLeft = 0; | |
498 for (int i = 0; i < index; i++) { | |
499 minSpaceOnLeft += items[row][i].internalGetMinimumWidth(); | |
500 } | |
501 int x = Math.max(minSpaceOnLeft, bounds.x - pixels); | |
502 CoolItem left = items[row][index - 1]; | |
503 Rectangle leftBounds = left.internalGetBounds(); | |
504 if (leftBounds.x + left.internalGetMinimumWidth() > x) { | |
505 int shift = leftBounds.x + left.internalGetMinimumWidth() - x; | |
506 moveLeft(left, shift); | |
507 leftBounds = left.internalGetBounds(); | |
508 } | |
509 int leftWidth = Math.max(left.internalGetMinimumWidth(), leftBounds.width - pixels); | |
510 left.setBounds(leftBounds.x, leftBounds.y, leftWidth, leftBounds.height); | |
511 left.requestedWidth = leftWidth; | |
512 int width = bounds.width + (bounds.x - x); | |
513 item.setBounds(x, bounds.y, width, bounds.height); | |
514 item.requestedWidth = width; | |
515 | |
516 int damagedWidth = bounds.x - x + CoolItem.MINIMUM_WIDTH; | |
517 if (damagedWidth > CoolItem.MINIMUM_WIDTH) { | |
518 internalRedraw(x, bounds.y, damagedWidth, bounds.height); | |
519 } | |
520 } | |
521 void moveRight(CoolItem item, int pixels) { | |
522 Point point = findItem(item); | |
523 int row = point.y; | |
524 int index = point.x; | |
525 if (index is 0) return; | |
526 Rectangle bounds = item.internalGetBounds(); | |
527 int minSpaceOnRight = 0; | |
528 for (int i = index; i < items[row].length; i++) { | |
529 minSpaceOnRight += items[row][i].internalGetMinimumWidth(); | |
530 } | |
531 int max = getWidth() - minSpaceOnRight; | |
532 int x = Math.min(max, bounds.x + pixels); | |
533 int width = 0; | |
534 if (index + 1 is items[row].length) { | |
535 width = getWidth() - x; | |
536 } else { | |
537 CoolItem right = items[row][index + 1]; | |
538 Rectangle rightBounds = right.internalGetBounds(); | |
539 if (x + item.internalGetMinimumWidth() > rightBounds.x) { | |
540 int shift = x + item.internalGetMinimumWidth() - rightBounds.x; | |
541 moveRight(right, shift); | |
542 rightBounds = right.internalGetBounds(); | |
543 } | |
544 width = rightBounds.x - x; | |
545 } | |
546 item.setBounds(x, bounds.y, width, bounds.height); | |
547 item.requestedWidth = width; | |
548 CoolItem left = items[row][index - 1]; | |
549 Rectangle leftBounds = left.internalGetBounds(); | |
550 int leftWidth = x - leftBounds.x; | |
551 left.setBounds(leftBounds.x, leftBounds.y, leftWidth, leftBounds.height); | |
552 left.requestedWidth = leftWidth; | |
553 | |
554 int damagedWidth = x - bounds.x + CoolItem.MINIMUM_WIDTH + CoolItem.MARGIN_WIDTH; | |
555 if (x - bounds.x > 0) { | |
556 internalRedraw(bounds.x - CoolItem.MARGIN_WIDTH, bounds.y, damagedWidth, bounds.height); | |
557 } | |
558 } | |
559 void moveUp(CoolItem item, int x_root) { | |
560 Point point = findItem(item); | |
561 int oldRowIndex = point.y; | |
562 bool resize = false; | |
563 if (items[oldRowIndex].length is 1) { | |
564 resize = true; | |
565 /* If this is the only item in the top row, don't move it. */ | |
566 if (oldRowIndex is 0) return; | |
567 } | |
568 removeItemFromRow(item, oldRowIndex, false); | |
569 Rectangle old = item.internalGetBounds(); | |
570 internalRedraw(old.x, old.y, CoolItem.MINIMUM_WIDTH, old.height); | |
571 int newRowIndex = Math.max(0, oldRowIndex - 1); | |
572 if (oldRowIndex is 0) { | |
573 /* Create a new top row for the item. */ | |
574 CoolItem[][] newRows = new CoolItem[][]( items.length + 1 ); | |
575 SimpleType!(CoolItem[]).arraycopy(items, 0, newRows, 1, items.length); | |
576 newRows[0] = new CoolItem[1]; | |
577 newRows[0][0] = item; | |
578 items = newRows; | |
579 resize = true; | |
580 item.wrap = true; | |
581 } else { | |
582 insertItemIntoRow(item, newRowIndex, x_root); | |
583 } | |
584 if (resize) { | |
585 relayout(); | |
586 } else { | |
587 layoutItems(); | |
588 } | |
589 } | |
590 void onDispose(Event event) { | |
591 /* | |
592 * Usually when an item is disposed, destroyItem will change the size of the items array | |
593 * and reset the bounds of all the remaining cool items. | |
594 * Since the whole cool bar is being disposed, this is not necessary. For speed | |
595 * the inDispose flag is used to skip over this part of the item dispose. | |
596 */ | |
597 if (inDispose) return; | |
598 inDispose = true; | |
599 notifyListeners(DWT.Dispose, event); | |
600 event.type = DWT.None; | |
601 for (int i = 0; i < items.length; i++) { | |
602 for (int j = 0; j < items[i].length; j++) { | |
603 items[i][j].dispose(); | |
604 } | |
605 } | |
606 hoverCursor.dispose(); | |
607 dragCursor.dispose(); | |
608 cursor = null; | |
609 } | |
610 void onMouseDown(Event event) { | |
611 if (isLocked || event.button !is 1) return; | |
612 fixEvent(event); | |
613 dragging = getGrabbedItem(event.x, event.y); | |
614 if (dragging !is null) { | |
615 mouseXOffset = event.x; | |
616 itemXOffset = mouseXOffset - dragging.internalGetBounds().x; | |
617 _setCursor(dragCursor); | |
618 } | |
619 fixEvent(event); | |
620 } | |
621 void onMouseExit() { | |
622 if (dragging is null) _setCursor(null); | |
623 } | |
624 void onMouseMove(Event event) { | |
625 if (isLocked) return; | |
626 fixEvent(event); | |
627 CoolItem grabbed = getGrabbedItem(event.x, event.y); | |
628 if (dragging !is null) { | |
240 | 629 int left_root = toDisplay(new Point(event.x - itemXOffset, event.y)).x; |
76 | 630 Rectangle bounds = dragging.internalGetBounds(); |
631 if (event.y < bounds.y) { | |
632 moveUp(dragging, left_root); | |
633 } else if (event.y > bounds.y + bounds.height){ | |
634 moveDown(dragging, left_root); | |
635 } else if (event.x < mouseXOffset) { | |
636 int distance = Math.min(mouseXOffset, bounds.x + itemXOffset) - event.x; | |
637 if (distance > 0) moveLeft(dragging, distance); | |
638 } else if (event.x > mouseXOffset) { | |
639 int distance = event.x - Math.max(mouseXOffset, bounds.x + itemXOffset); | |
640 if (distance > 0) moveRight(dragging, distance); | |
641 } | |
642 mouseXOffset = event.x; | |
643 } else { | |
644 if (grabbed !is null) { | |
645 _setCursor(hoverCursor); | |
646 } else { | |
647 _setCursor(null); | |
648 } | |
649 } | |
650 fixEvent(event); | |
651 } | |
652 void onMouseUp(Event event) { | |
653 _setCursor(null); | |
654 dragging = null; | |
655 } | |
656 void onMouseDoubleClick(Event event) { | |
657 if (isLocked) return; | |
658 dragging = null; | |
659 fixEvent(event); | |
660 CoolItem target = getGrabbedItem(event.x, event.y); | |
661 if (target is null) { | |
662 _setCursor(null); | |
663 } else { | |
664 Point location = findItem(target); | |
665 int row = location.y; | |
666 int index = location.x; | |
667 if (items[row].length > 1) { | |
668 Rectangle bounds = target.internalGetBounds(); | |
669 int maxSize = getWidth (); | |
670 for (int i = 0; i < items[row].length; i++) { | |
671 if (i !is index) { | |
672 maxSize -= items[row][i].internalGetMinimumWidth(); | |
673 } | |
674 } | |
675 if (bounds.width is maxSize) { | |
676 /* The item is at its maximum width. It should be resized to its minimum width. */ | |
677 int distance = bounds.width - target.internalGetMinimumWidth(); | |
678 if (index + 1 < items[row].length) { | |
679 /* There is an item to the right. Maximize it. */ | |
680 CoolItem right = items[row][index + 1]; | |
681 moveLeft(right, distance); | |
682 } else { | |
683 /* There is no item to the right. Move the item all the way right. */ | |
684 moveRight(target, distance); | |
685 } | |
686 } else if (bounds.width < target.preferredWidth) { | |
687 /* The item is less than its preferredWidth. Resize to preferredWidth. */ | |
688 int distance = target.preferredWidth - bounds.width; | |
689 if (index + 1 < items[row].length) { | |
690 CoolItem right = items[row][index + 1]; | |
691 moveRight(right, distance); | |
692 distance = target.preferredWidth - target.internalGetBounds().width; | |
693 } | |
694 if (distance > 0) { | |
695 moveLeft(target, distance); | |
696 } | |
697 } else { | |
698 /* The item is at its minimum width. Maximize it. */ | |
699 for (int i = 0; i < items[row].length; i++) { | |
700 if (i !is index) { | |
701 CoolItem item = items[row][i]; | |
702 item.requestedWidth = Math.max(item.internalGetMinimumWidth(), CoolItem.MINIMUM_WIDTH); | |
703 } | |
704 } | |
705 target.requestedWidth = maxSize; | |
706 layoutItems(); | |
707 } | |
708 _setCursor(hoverCursor); | |
709 } | |
710 } | |
711 fixEvent(event); | |
712 } | |
713 void onPaint(Event event) { | |
714 GC gc = event.gc; | |
715 if (items.length is 0) return; | |
716 Color shadowColor = display.getSystemColor(DWT.COLOR_WIDGET_NORMAL_SHADOW); | |
717 Color highlightColor = display.getSystemColor(DWT.COLOR_WIDGET_HIGHLIGHT_SHADOW); | |
718 bool vertical = (style & DWT.VERTICAL) !is 0; | |
719 bool flat = (style & DWT.FLAT) !is 0; | |
720 int stopX = getWidth(); | |
721 Rectangle rect; | |
722 Rectangle clipping = gc.getClipping(); | |
723 for (int row = 0; row < items.length; row++) { | |
724 Rectangle bounds = new Rectangle(0, 0, 0, 0); | |
725 for (int i = 0; i < items[row].length; i++) { | |
726 bounds = items[row][i].internalGetBounds(); | |
727 rect = fixRectangle(bounds.x, bounds.y, bounds.width, bounds.height); | |
728 if (!clipping.intersects(rect)) continue; | |
729 bool nativeGripper = false; | |
730 | |
731 /* Draw gripper. */ | |
732 if (!isLocked) { | |
733 rect = fixRectangle(bounds.x, bounds.y, CoolItem.MINIMUM_WIDTH, bounds.height); | |
734 if (!flat) nativeGripper = drawGripper(rect.x, rect.y, rect.width, rect.height, vertical); | |
735 if (!nativeGripper) { | |
736 int grabberTrim = 2; | |
737 int grabberHeight = bounds.height - (2 * grabberTrim) - 1; | |
738 gc.setForeground(shadowColor); | |
739 rect = fixRectangle( | |
740 bounds.x + CoolItem.MARGIN_WIDTH, | |
741 bounds.y + grabberTrim, | |
742 2, | |
743 grabberHeight); | |
744 gc.drawRectangle(rect); | |
745 gc.setForeground(highlightColor); | |
746 rect = fixRectangle( | |
747 bounds.x + CoolItem.MARGIN_WIDTH, | |
748 bounds.y + grabberTrim + 1, | |
749 bounds.x + CoolItem.MARGIN_WIDTH, | |
750 bounds.y + grabberTrim + grabberHeight - 1); | |
751 gc.drawLine(rect.x, rect.y, rect.width, rect.height); | |
752 rect = fixRectangle( | |
753 bounds.x + CoolItem.MARGIN_WIDTH, | |
754 bounds.y + grabberTrim, | |
755 bounds.x + CoolItem.MARGIN_WIDTH + 1, | |
756 bounds.y + grabberTrim); | |
757 gc.drawLine(rect.x, rect.y, rect.width, rect.height); | |
758 } | |
759 } | |
760 | |
761 /* Draw separator. */ | |
762 if (!flat && !nativeGripper && i !is 0) { | |
763 gc.setForeground(shadowColor); | |
764 rect = fixRectangle(bounds.x, bounds.y, bounds.x, bounds.y + bounds.height - 1); | |
765 gc.drawLine(rect.x, rect.y, rect.width, rect.height); | |
766 gc.setForeground(highlightColor); | |
767 rect = fixRectangle(bounds.x + 1, bounds.y, bounds.x + 1, bounds.y + bounds.height - 1); | |
768 gc.drawLine(rect.x, rect.y, rect.width, rect.height); | |
769 } | |
770 } | |
771 if (!flat && row + 1 < items.length) { | |
772 /* Draw row separator. */ | |
773 int separatorY = bounds.y + bounds.height; | |
774 gc.setForeground(shadowColor); | |
775 rect = fixRectangle(0, separatorY, stopX, separatorY); | |
776 gc.drawLine(rect.x, rect.y, rect.width, rect.height); | |
777 gc.setForeground(highlightColor); | |
778 rect = fixRectangle(0, separatorY + 1, stopX, separatorY + 1); | |
779 gc.drawLine(rect.x, rect.y, rect.width, rect.height); | |
780 } | |
781 } | |
782 } | |
783 void onResize () { | |
784 layoutItems (); | |
785 } | |
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786 override void removeControl (Control control) { |
76 | 787 super.removeControl (control); |
788 CoolItem [] items = getItems (); | |
789 for (int i=0; i<items.length; i++) { | |
790 CoolItem item = items [i]; | |
791 if (item.control is control) item.setControl (null); | |
792 } | |
793 } | |
794 /** | |
795 * Remove the item from the row. Adjust the x and width values | |
796 * appropriately. | |
797 */ | |
798 void removeItemFromRow(CoolItem item, int rowIndex, bool disposed) { | |
799 int index = findItem(item).x; | |
800 int newLength = items[rowIndex].length - 1; | |
801 Rectangle itemBounds = item.internalGetBounds(); | |
802 item.wrap = false; | |
803 if (newLength > 0) { | |
804 CoolItem[] newRow = new CoolItem[newLength]; | |
805 System.arraycopy(items[rowIndex], 0, newRow, 0, index); | |
806 System.arraycopy(items[rowIndex], index + 1, newRow, index, newRow.length - index); | |
807 items[rowIndex] = newRow; | |
808 items[rowIndex][0].wrap = true; | |
809 } else { | |
810 CoolItem[][] newRows = new CoolItem[][]( items.length - 1 ); | |
811 SimpleType!(CoolItem[]).arraycopy(items, 0, newRows, 0, rowIndex); | |
812 SimpleType!(CoolItem[]).arraycopy(items, rowIndex + 1, newRows, rowIndex, newRows.length - rowIndex); | |
813 items = newRows; | |
814 return; | |
815 } | |
816 if (!disposed) { | |
817 if (index is 0) { | |
818 CoolItem first = items[rowIndex][0]; | |
819 Rectangle bounds = first.internalGetBounds(); | |
820 int width = bounds.x + bounds.width; | |
821 first.setBounds(0, bounds.y, width, bounds.height); | |
822 first.requestedWidth = width; | |
823 internalRedraw(bounds.x, bounds.y, CoolItem.MINIMUM_WIDTH, bounds.height); | |
824 } else { | |
825 CoolItem previous = items[rowIndex][index - 1]; | |
826 Rectangle bounds = previous.internalGetBounds(); | |
827 int width = bounds.width + itemBounds.width; | |
828 previous.setBounds(bounds.x, bounds.y, width, bounds.height); | |
829 previous.requestedWidth = width; | |
830 } | |
831 } | |
832 } | |
833 /** | |
834 * Return the height of the bar after it has | |
835 * been properly laid out for the given width. | |
836 */ | |
837 int layoutItems () { | |
838 int y = 0, width; | |
839 if ((style&DWT.VERTICAL) !is 0) { | |
840 width = getClientArea().height; | |
841 } else { | |
842 width = getClientArea().width; | |
843 } | |
844 wrapItems(width); | |
845 int rowSpacing = (style & DWT.FLAT) !is 0 ? 0 : ROW_SPACING; | |
846 for (int row = 0; row < items.length; row++) { | |
847 int count = items[row].length; | |
848 int x = 0; | |
849 | |
850 /* determine the height and the available width for the row */ | |
851 int rowHeight = 0; | |
852 int available = width; | |
853 for (int i = 0; i < count; i++) { | |
854 CoolItem item = items[row][i]; | |
855 rowHeight = Math.max(rowHeight, item.internalGetBounds().height); | |
856 available -= item.internalGetMinimumWidth(); | |
857 } | |
858 if (row > 0) y += rowSpacing; | |
859 | |
860 /* lay the items out */ | |
861 for (int i = 0; i < count; i++) { | |
862 CoolItem child = items[row][i]; | |
863 int newWidth = available + child.internalGetMinimumWidth(); | |
864 if (i + 1 < count) { | |
865 newWidth = Math.min(newWidth, child.requestedWidth); | |
866 available -= (newWidth - child.internalGetMinimumWidth()); | |
867 } | |
868 Rectangle oldBounds = child.internalGetBounds(); | |
869 Rectangle newBounds = new Rectangle(x, y, newWidth, rowHeight); | |
870 if ( oldBounds !=/*eq*/ newBounds) { | |
871 child.setBounds(newBounds.x, newBounds.y, newBounds.width, newBounds.height); | |
872 Rectangle damage = new Rectangle(0, 0, 0, 0); | |
873 /* Cases are in descending order from most area to redraw to least. */ | |
874 if (oldBounds.y !is newBounds.y) { | |
875 damage = newBounds; | |
876 damage.add(oldBounds); | |
877 /* Redraw the row separator as well. */ | |
878 damage.y -= rowSpacing; | |
879 damage.height += 2 * rowSpacing; | |
880 } else if (oldBounds.height !is newBounds.height) { | |
881 /* | |
882 * Draw from the bottom of the gripper to the bottom of the new area. | |
883 * (Bottom of the gripper is -3 from the bottom of the item). | |
884 */ | |
885 damage.y = newBounds.y + Math.min(oldBounds.height, newBounds.height) - 3; | |
886 damage.height = newBounds.y + newBounds.height + rowSpacing; | |
887 damage.x = oldBounds.x - CoolItem.MARGIN_WIDTH; | |
888 damage.width = oldBounds.width + CoolItem.MARGIN_WIDTH; | |
889 } else if (oldBounds.x !is newBounds.x) { | |
890 /* Redraw only the difference between the separators. */ | |
891 damage.x = Math.min(oldBounds.x, newBounds.x); | |
892 damage.width = Math.abs(oldBounds.x - newBounds.x) + CoolItem.MINIMUM_WIDTH; | |
893 damage.y = oldBounds.y; | |
894 damage.height = oldBounds.height; | |
895 } | |
896 internalRedraw(damage.x, damage.y, damage.width, damage.height); | |
897 } | |
898 x += newWidth; | |
899 } | |
900 y += rowHeight; | |
901 } | |
902 return y; | |
903 } | |
904 void relayout() { | |
905 Point size = getSize(); | |
906 int height = layoutItems(); | |
907 if ((style & DWT.VERTICAL) !is 0) { | |
908 Rectangle trim = computeTrim (0, 0, height, 0); | |
909 if (height !is size.x) super.setSize(trim.width, size.y); | |
910 } else { | |
911 Rectangle trim = computeTrim (0, 0, 0, height); | |
912 if (height !is size.y) super.setSize(size.x, trim.height); | |
913 } | |
914 } | |
915 /** | |
916 * Returns an array of zero-relative ints that map | |
917 * the creation order of the receiver's items to the | |
918 * order in which they are currently being displayed. | |
919 * <p> | |
920 * Specifically, the indices of the returned array represent | |
921 * the current visual order of the items, and the contents | |
922 * of the array represent the creation order of the items. | |
923 * </p><p> | |
924 * Note: This is not the actual structure used by the receiver | |
925 * to maintain its list of items, so modifying the array will | |
926 * not affect the receiver. | |
927 * </p> | |
928 * | |
929 * @return the current visual order of the receiver's items | |
930 * | |
931 * @exception DWTException <ul> | |
932 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
933 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
934 * </ul> | |
935 */ | |
936 public int[] getItemOrder () { | |
937 checkWidget (); | |
938 int count = getItemCount (); | |
939 int [] indices = new int [count]; | |
940 count = 0; | |
941 for (int i = 0; i < items.length; i++) { | |
942 for (int j = 0; j < items[i].length; j++) { | |
943 CoolItem item = items[i][j]; | |
944 int index = 0; | |
945 while (index<originalItems.length) { | |
946 if (originalItems [index] is item) break; | |
947 index++; | |
948 } | |
949 if (index is originalItems.length) error (DWT.ERROR_CANNOT_GET_ITEM); | |
950 indices [count++] = index; | |
951 } | |
952 } | |
953 return indices; | |
954 } | |
955 void setItemOrder (int[] itemOrder) { | |
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956 // DWT extension: allow null for zero length string |
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957 //if (itemOrder is null) error(DWT.ERROR_NULL_ARGUMENT); |
76 | 958 int count = originalItems.length; |
959 if (itemOrder.length !is count) error(DWT.ERROR_INVALID_ARGUMENT); | |
960 | |
961 /* Ensure that itemOrder does not contain any duplicates. */ | |
962 bool [] set = new bool [count]; | |
963 for (int i = 0; i < set.length; i++) set [i] = false; | |
964 for (int i = 0; i < itemOrder.length; i++) { | |
965 if (itemOrder [i] < 0 || itemOrder [i] >= count) error (DWT.ERROR_INVALID_ARGUMENT); | |
966 if (set [itemOrder [i]]) error (DWT.ERROR_INVALID_ARGUMENT); | |
967 set [itemOrder [i]] = true; | |
968 } | |
969 | |
970 CoolItem[] row = new CoolItem[count]; | |
971 for (int i = 0; i < count; i++) { | |
972 row[i] = originalItems[itemOrder[i]]; | |
973 } | |
974 items = new CoolItem[][](1,count); | |
975 items[0] = row; | |
976 } | |
977 /** | |
978 * Returns an array of points whose x and y coordinates describe | |
979 * the widths and heights (respectively) of the items in the receiver | |
980 * in the order in which they are currently being displayed. | |
981 * | |
982 * @return the receiver's item sizes in their current visual order | |
983 * | |
984 * @exception DWTException <ul> | |
985 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
986 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
987 * </ul> | |
988 */ | |
989 public Point[] getItemSizes () { | |
990 checkWidget(); | |
991 CoolItem[] items = getItems(); | |
992 Point[] sizes = new Point[items.length]; | |
993 for (int i = 0; i < items.length; i++) { | |
994 sizes[i] = items[i].getSize(); | |
995 } | |
996 return sizes; | |
997 } | |
998 void setItemSizes (Point[] sizes) { | |
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999 // DWT extension: allow null for zero length string |
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1000 //if (sizes is null) error(DWT.ERROR_NULL_ARGUMENT); |
76 | 1001 CoolItem[] items = getItems(); |
1002 if (sizes.length !is items.length) error(DWT.ERROR_INVALID_ARGUMENT); | |
1003 for (int i = 0; i < items.length; i++) { | |
1004 items[i].setSize(sizes[i]); | |
1005 } | |
1006 } | |
1007 /** | |
1008 * Returns whether or not the receiver is 'locked'. When a coolbar | |
1009 * is locked, its items cannot be repositioned. | |
1010 * | |
1011 * @return true if the coolbar is locked, false otherwise | |
1012 * | |
1013 * @exception DWTException <ul> | |
1014 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
1015 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
1016 * </ul> | |
1017 * | |
1018 * @since 2.0 | |
1019 */ | |
1020 public bool getLocked () { | |
1021 checkWidget (); | |
1022 return isLocked; | |
1023 } | |
1024 int getWidth () { | |
1025 if ((style & DWT.VERTICAL) !is 0) return getSize().y; | |
1026 return getSize().x; | |
1027 } | |
1028 /** | |
1029 * Returns an array of ints that describe the zero-relative | |
1030 * indices of any item(s) in the receiver that will begin on | |
1031 * a new row. The 0th visible item always begins the first row, | |
1032 * therefore it does not count as a wrap index. | |
1033 * | |
1034 * @return an array containing the receiver's wrap indices, or an empty array if all items are in one row | |
1035 * | |
1036 * @exception DWTException <ul> | |
1037 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
1038 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
1039 * </ul> | |
1040 */ | |
1041 public int[] getWrapIndices () { | |
1042 checkWidget(); | |
1043 if (items.length <= 1) return null; | |
1044 int[] wrapIndices = new int[]( items.length - 1 ); | |
1045 int i = 0, nextWrap = items[0].length; | |
1046 for (int row = 1; row < items.length; row++) { | |
1047 if (items[row][0].wrap) wrapIndices[i++] = nextWrap; | |
1048 nextWrap += items[row].length; | |
1049 } | |
1050 if (i !is wrapIndices.length) { | |
1051 int[] tmp = new int[i]; | |
1052 System.arraycopy(wrapIndices, 0, tmp, 0, i); | |
1053 return tmp; | |
1054 } | |
1055 return wrapIndices; | |
1056 } | |
1057 /** | |
1058 * Sets whether or not the receiver is 'locked'. When a coolbar | |
1059 * is locked, its items cannot be repositioned. | |
1060 * | |
1061 * @param locked lock the coolbar if true, otherwise unlock the coolbar | |
1062 * | |
1063 * @exception DWTException <ul> | |
1064 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
1065 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
1066 * </ul> | |
1067 * | |
1068 * @since 2.0 | |
1069 */ | |
1070 public void setLocked (bool locked) { | |
1071 checkWidget (); | |
1072 if (isLocked !is locked) { | |
1073 redraw(); | |
1074 } | |
1075 isLocked = locked; | |
1076 | |
1077 } | |
1078 /** | |
1079 * Sets the indices of all item(s) in the receiver that will | |
1080 * begin on a new row. The indices are given in the order in | |
1081 * which they are currently being displayed. The 0th item | |
1082 * always begins the first row, therefore it does not count | |
1083 * as a wrap index. If indices is null or empty, the items | |
1084 * will be placed on one line. | |
1085 * | |
1086 * @param indices an array of wrap indices, or null | |
1087 * | |
1088 * @exception DWTException <ul> | |
1089 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
1090 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
1091 * </ul> | |
1092 */ | |
1093 public void setWrapIndices (int[] indices) { | |
1094 checkWidget(); | |
1095 if (indices is null) indices = new int[0]; | |
1096 int count = originalItems.length; | |
1097 for (int i=0; i<indices.length; i++) { | |
1098 if (indices[i] < 0 || indices[i] >= count) { | |
1099 error (DWT.ERROR_INVALID_ARGUMENT); | |
1100 } | |
1101 } | |
1102 for (int i=0; i<originalItems.length; i++) { | |
1103 originalItems[i].wrap = false; | |
1104 } | |
1105 for (int i=0; i<indices.length; i++) { | |
1106 int index = indices[i]; | |
1107 for (int row = 0; row < items.length; row++) { | |
1108 if (items[row].length > index) { | |
1109 items[row][index].wrap = true; | |
1110 break; | |
1111 } else { | |
1112 index -= items[row].length; | |
1113 } | |
1114 } | |
1115 } | |
1116 relayout(); | |
1117 } | |
150
f2e04420fd6c
reworked overrides and superclass aliases
Frank Benoit <benoit@tionex.de>
parents:
108
diff
changeset
|
1118 public override void setCursor (Cursor cursor) { |
76 | 1119 checkWidget (); |
1120 super.setCursor (this.cursor = cursor); | |
1121 } | |
1122 /** | |
1123 * Sets the receiver's item order, wrap indices, and item sizes | |
1124 * all at once. This method is typically used to restore the | |
1125 * displayed state of the receiver to a previously stored state. | |
1126 * <p> | |
1127 * The item order is the order in which the items in the receiver | |
1128 * should be displayed, given in terms of the zero-relative ordering | |
1129 * of when the items were added. | |
1130 * </p><p> | |
1131 * The wrap indices are the indices of all item(s) in the receiver | |
1132 * that will begin on a new row. The indices are given in the order | |
1133 * specified by the item order. The 0th item always begins the first | |
1134 * row, therefore it does not count as a wrap index. If wrap indices | |
1135 * is null or empty, the items will be placed on one line. | |
1136 * </p><p> | |
1137 * The sizes are specified in an array of points whose x and y | |
1138 * coordinates describe the new widths and heights (respectively) | |
1139 * of the receiver's items in the order specified by the item order. | |
1140 * </p> | |
1141 * | |
1142 * @param itemOrder an array of indices that describe the new order to display the items in | |
1143 * @param wrapIndices an array of wrap indices, or null | |
1144 * @param sizes an array containing the new sizes for each of the receiver's items in visual order | |
1145 * | |
1146 * @exception DWTException <ul> | |
1147 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
1148 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
1149 * </ul> | |
1150 * @exception IllegalArgumentException <ul> | |
1151 * <li>ERROR_INVALID_ARGUMENT - if item order or sizes is not the same length as the number of items</li> | |
1152 * </ul> | |
1153 */ | |
1154 public void setItemLayout (int[] itemOrder, int[] wrapIndices, Point[] sizes) { | |
1155 checkWidget(); | |
1156 setItemOrder(itemOrder); | |
1157 setWrapIndices(wrapIndices); | |
1158 setItemSizes(sizes); | |
1159 relayout(); | |
1160 } | |
1161 void wrapItems (int maxWidth) { | |
1162 int itemCount = originalItems.length; | |
1163 if (itemCount < 2) return; | |
1164 CoolItem[] itemsVisual = new CoolItem[itemCount]; | |
1165 int start = 0; | |
1166 for (int row = 0; row < items.length; row++) { | |
1167 System.arraycopy(items[row], 0, itemsVisual, start, items[row].length); | |
1168 start += items[row].length; | |
1169 } | |
1170 CoolItem[][] newItems = new CoolItem[][](itemCount); | |
1171 int rowCount = 0, rowWidth = 0; | |
1172 start = 0; | |
1173 for (int i = 0; i < itemCount; i++) { | |
1174 CoolItem item = itemsVisual[i]; | |
1175 int itemWidth = item.internalGetMinimumWidth(); | |
1176 if ((i > 0 && item.wrap) || (maxWidth !is DWT.DEFAULT && rowWidth + itemWidth > maxWidth)) { | |
1177 if (i is start) { | |
1178 newItems[rowCount] = new CoolItem[1]; | |
1179 newItems[rowCount][0] = item; | |
1180 start = i + 1; | |
1181 rowWidth = 0; | |
1182 } else { | |
1183 int count = i - start; | |
1184 newItems[rowCount] = new CoolItem[count]; | |
1185 System.arraycopy(itemsVisual, start, newItems[rowCount], 0, count); | |
1186 start = i; | |
1187 rowWidth = itemWidth; | |
1188 } | |
1189 rowCount++; | |
1190 } else { | |
1191 rowWidth += itemWidth; | |
1192 } | |
1193 } | |
1194 if (start < itemCount) { | |
1195 int count = itemCount - start; | |
1196 newItems[rowCount] = new CoolItem[count]; | |
1197 System.arraycopy(itemsVisual, start, newItems[rowCount], 0, count); | |
1198 rowCount++; | |
1199 } | |
1200 if (newItems.length !is rowCount) { | |
1201 CoolItem[][] tmp = new CoolItem[][](rowCount); | |
1202 SimpleType!(CoolItem[]).arraycopy(newItems, 0, tmp, 0, rowCount); | |
1203 items = tmp; | |
1204 } else { | |
1205 items = newItems; | |
1206 } | |
1207 } | |
1208 } |