Mercurial > projects > dwt-linux
annotate dwt/widgets/CoolBar.d @ 255:5a30aa9820f3
removed tango.stdc.stringz imports and allow null for arrays and string arguments.
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 15 Jun 2008 22:32:20 +0200 |
| parents | ce446666f5a2 |
| children | c0d810de7093 |
| rev | line source |
|---|---|
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1 /******************************************************************************* |
| 76 | 2 * Copyright (c) 2000, 2006 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 | |
| 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; | |
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27 |
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import dwt.dwthelper.utils now explicit
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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> | |
| 52 */ | |
| 53 public class CoolBar : Composite { | |
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54 |
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55 alias Composite.computeSize computeSize; |
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56 alias Composite.setCursor setCursor; |
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57 |
| 76 | 58 CoolItem[][] items; |
| 59 CoolItem[] originalItems; | |
| 60 Cursor hoverCursor, dragCursor, cursor; | |
| 61 CoolItem dragging = null; | |
| 62 int mouseXOffset, itemXOffset; | |
| 63 bool isLocked = false; | |
| 64 bool inDispose = false; | |
| 65 static const int ROW_SPACING = 2; | |
| 66 static const int CLICK_DISTANCE = 3; | |
| 67 static const int DEFAULT_COOLBAR_WIDTH = 0; | |
| 68 static const int DEFAULT_COOLBAR_HEIGHT = 0; | |
| 69 | |
| 70 /** | |
| 71 * Constructs a new instance of this class given its parent | |
| 72 * and a style value describing its behavior and appearance. | |
| 73 * <p> | |
| 74 * The style value is either one of the style constants defined in | |
| 75 * class <code>DWT</code> which is applicable to instances of this | |
| 76 * class, or must be built by <em>bitwise OR</em>'ing together | |
| 77 * (that is, using the <code>int</code> "|" operator) two or more | |
| 78 * of those <code>DWT</code> style constants. The class description | |
| 79 * lists the style constants that are applicable to the class. | |
| 80 * Style bits are also inherited from superclasses. | |
| 81 * </p> | |
| 82 * | |
| 83 * @param parent a composite control which will be the parent of the new instance (cannot be null) | |
| 84 * @param style the style of control to construct | |
| 85 * | |
| 86 * @exception IllegalArgumentException <ul> | |
| 87 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> | |
| 88 * </ul> | |
| 89 * @exception DWTException <ul> | |
| 90 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> | |
| 91 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> | |
| 92 * </ul> | |
| 93 * | |
| 94 * @see DWT | |
| 95 * @see Widget#checkSubclass | |
| 96 * @see Widget#getStyle | |
| 97 */ | |
| 98 public this (Composite parent, int style) { | |
| 99 super (parent, checkStyle(style)); | |
| 100 if ((style & DWT.VERTICAL) !is 0) { | |
| 101 this.style |= DWT.VERTICAL; | |
| 102 hoverCursor = new Cursor(display, DWT.CURSOR_SIZENS); | |
| 103 } else { | |
| 104 this.style |= DWT.HORIZONTAL; | |
| 105 hoverCursor = new Cursor(display, DWT.CURSOR_SIZEWE); | |
| 106 } | |
| 107 dragCursor = new Cursor(display, DWT.CURSOR_SIZEALL); | |
| 108 Listener listener = new class () Listener { | |
| 109 public void handleEvent(Event event) { | |
| 110 switch (event.type) { | |
| 111 case DWT.Dispose: onDispose(event); break; | |
| 112 case DWT.MouseDown: onMouseDown(event); break; | |
| 113 case DWT.MouseExit: onMouseExit(); break; | |
| 114 case DWT.MouseMove: onMouseMove(event); break; | |
| 115 case DWT.MouseUp: onMouseUp(event); break; | |
| 116 case DWT.MouseDoubleClick: onMouseDoubleClick(event); break; | |
| 117 case DWT.Paint: onPaint(event); break; | |
| 118 case DWT.Resize: onResize(); break; | |
| 119 default: | |
| 120 } | |
| 121 } | |
| 122 }; | |
| 123 int[] events = [ | |
| 124 DWT.Dispose, | |
| 125 DWT.MouseDown, | |
| 126 DWT.MouseExit, | |
| 127 DWT.MouseMove, | |
| 128 DWT.MouseUp, | |
| 129 DWT.MouseDoubleClick, | |
| 130 DWT.Paint, | |
| 131 DWT.Resize | |
| 132 ]; | |
| 133 for (int i = 0; i < events.length; i++) { | |
| 134 addListener(events[i], listener); | |
| 135 } | |
| 136 } | |
| 240 | 137 static int checkStyle (int style) { |
| 76 | 138 style |= DWT.NO_FOCUS; |
| 139 return (style | DWT.NO_REDRAW_RESIZE) & ~(DWT.V_SCROLL | DWT.H_SCROLL); | |
| 140 } | |
| 141 void _setCursor (Cursor cursor) { | |
| 142 if (this.cursor !is null) return; | |
| 143 super.setCursor (cursor); | |
| 144 } | |
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145 protected override void checkSubclass () { |
| 76 | 146 if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); |
| 147 } | |
| 148 | |
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149 public override Point computeSize (int wHint, int hHint, bool changed) { |
| 76 | 150 checkWidget(); |
| 151 int width = 0, height = 0; | |
| 152 wrapItems((style & DWT.VERTICAL) !is 0 ? hHint : wHint); | |
| 153 bool flat = (style & DWT.FLAT) !is 0; | |
| 154 for (int row = 0; row < items.length; row++) { | |
| 155 int rowWidth = 0, rowHeight = 0; | |
| 156 for (int i = 0; i < items[row].length; i++) { | |
| 157 CoolItem item = items[row][i]; | |
| 158 rowWidth += item.preferredWidth; | |
| 159 rowHeight = Math.max(rowHeight, item.preferredHeight); | |
| 160 } | |
| 161 height += rowHeight; | |
| 162 if (!flat && row > 0) height += ROW_SPACING; | |
| 163 width = Math.max(width, rowWidth); | |
| 164 } | |
| 165 wrapItems(getWidth()); | |
| 166 if (width is 0) width = DEFAULT_COOLBAR_WIDTH; | |
| 167 if (height is 0) height = DEFAULT_COOLBAR_HEIGHT; | |
| 168 if (wHint !is DWT.DEFAULT) width = wHint; | |
| 169 if (hHint !is DWT.DEFAULT) height = hHint; | |
| 170 Rectangle trim = computeTrim(0, 0, width, height); | |
| 171 return fixPoint(trim.width, trim.height); | |
| 172 } | |
| 173 CoolItem getGrabbedItem(int x, int y) { | |
| 174 for (int row = 0; row < items.length; row++) { | |
| 175 for (int i = 0; i < items[row].length; i++) { | |
| 176 CoolItem item = items[row][i]; | |
| 177 Rectangle bounds = item.internalGetBounds(); | |
| 178 bounds.width = CoolItem.MINIMUM_WIDTH; | |
| 179 if (bounds.x > x) break; | |
| 180 if (bounds.y > y) return null; | |
| 181 if (bounds.contains(x, y)) { | |
| 182 return item; | |
| 183 } | |
| 184 } | |
| 185 } | |
| 186 return null; | |
| 187 } | |
| 188 /** | |
| 189 * Returns the item that is currently displayed at the given, | |
| 190 * zero-relative index. Throws an exception if the index is | |
| 191 * out of range. | |
| 192 * | |
| 193 * @param index the visual index of the item to return | |
| 194 * @return the item at the given visual index | |
| 195 * | |
| 196 * @exception IllegalArgumentException <ul> | |
| 197 * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> | |
| 198 * </ul> | |
| 199 * @exception DWTException <ul> | |
| 200 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 201 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 202 * </ul> | |
| 203 */ | |
| 204 public CoolItem getItem (int index) { | |
| 205 checkWidget(); | |
| 206 if (index < 0) error (DWT.ERROR_INVALID_RANGE); | |
| 207 for (int row = 0; row < items.length; row++) { | |
| 208 if (items[row].length > index) { | |
| 209 return items[row][index]; | |
| 210 } else { | |
| 211 index -= items[row].length; | |
| 212 } | |
| 213 } | |
| 214 error (DWT.ERROR_INVALID_RANGE); | |
| 215 return null; | |
| 216 } | |
| 217 /** | |
| 218 * Returns the number of items contained in the receiver. | |
| 219 * | |
| 220 * @return the number of items | |
| 221 * | |
| 222 * @exception DWTException <ul> | |
| 223 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 224 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 225 * </ul> | |
| 226 */ | |
| 227 public int getItemCount () { | |
| 228 checkWidget(); | |
| 229 return originalItems.length; | |
| 230 } | |
| 231 /** | |
| 232 * Returns an array of <code>CoolItem</code>s in the order | |
| 233 * in which they are currently being displayed. | |
| 234 * <p> | |
| 235 * Note: This is not the actual structure used by the receiver | |
| 236 * to maintain its list of items, so modifying the array will | |
| 237 * not affect the receiver. | |
| 238 * </p> | |
| 239 * | |
| 240 * @return the receiver's items in their current visual order | |
| 241 * | |
| 242 * @exception DWTException <ul> | |
| 243 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 244 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 245 * </ul> | |
| 246 */ | |
| 247 public CoolItem [] getItems () { | |
| 248 checkWidget(); | |
| 249 CoolItem [] result = new CoolItem [getItemCount()]; | |
| 250 int offset = 0; | |
| 251 for (int row = 0; row < items.length; row++) { | |
| 252 System.arraycopy(items[row], 0, result, offset, items[row].length); | |
| 253 offset += items[row].length; | |
| 254 } | |
| 255 return result; | |
| 256 } | |
| 257 Point findItem (CoolItem item) { | |
| 258 for (int row = 0; row < items.length; row++) { | |
| 259 for (int i = 0; i < items[row].length; i++) { | |
| 260 if (items[row][i] ==/*eq*/ item ) return new Point(i, row); | |
| 261 } | |
| 262 } | |
| 263 return new Point(-1, -1); | |
| 264 } | |
| 265 void fixEvent (Event event) { | |
| 266 if ((style & DWT.VERTICAL) !is 0) { | |
| 267 int tmp = event.x; | |
| 268 event.x = event.y; | |
| 269 event.y = tmp; | |
| 270 } | |
| 271 } | |
| 272 Rectangle fixRectangle (int x, int y, int width, int height) { | |
| 273 if ((style & DWT.VERTICAL) !is 0) { | |
| 274 return new Rectangle(y, x, height, width); | |
| 275 } | |
| 276 return new Rectangle(x, y, width, height); | |
| 277 } | |
| 278 Point fixPoint (int x, int y) { | |
| 279 if ((style & DWT.VERTICAL) !is 0) { | |
| 280 return new Point(y, x); | |
| 281 } | |
| 282 return new Point(x, y); | |
| 283 } | |
| 284 /** | |
| 285 * Searches the receiver's items in the order they are currently | |
| 286 * being displayed, starting at the first item (index 0), until | |
| 287 * an item is found that is equal to the argument, and returns | |
| 288 * the index of that item. If no item is found, returns -1. | |
| 289 * | |
| 290 * @param item the search item | |
| 291 * @return the visual order index of the search item, or -1 if the item is not found | |
| 292 * | |
| 293 * @exception IllegalArgumentException <ul> | |
| 294 * <li>ERROR_NULL_ARGUMENT - if the item is null</li> | |
| 295 * <li>ERROR_INVALID_ARGUMENT - if the item is disposed</li> | |
| 296 * </ul> | |
| 297 * @exception DWTException <ul> | |
| 298 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 299 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 300 * </ul> | |
| 301 */ | |
| 302 public int indexOf (CoolItem item) { | |
| 303 checkWidget(); | |
| 304 if (item is null) error (DWT.ERROR_NULL_ARGUMENT); | |
| 305 if (item.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT); | |
| 306 int answer = 0; | |
| 307 for (int row = 0; row < items.length; row++) { | |
| 308 for (int i = 0; i < items[row].length; i++) { | |
| 309 if (items[row][i] ==/*eq*/ item) { | |
| 310 return answer; | |
| 311 } else { | |
| 312 answer++; | |
| 313 } | |
| 314 } | |
| 315 } | |
| 316 return -1; | |
| 317 } | |
| 318 /** | |
| 319 * Insert the item into the row. Adjust the x and width values | |
| 320 * appropriately. | |
| 321 */ | |
| 322 void insertItemIntoRow(CoolItem item, int rowIndex, int x_root) { | |
| 323 int barWidth = getWidth(); | |
| 324 int rowY = items[rowIndex][0].internalGetBounds().y; | |
| 240 | 325 int x = Math.max(0, Math.abs(x_root - toDisplay(new Point(0, 0)).x)); |
| 76 | 326 |
| 327 /* Find the insertion index and add the item. */ | |
| 328 int index; | |
| 329 for (index = 0; index < items[rowIndex].length; index++) { | |
| 330 if (x < items[rowIndex][index].internalGetBounds().x) break; | |
| 331 } | |
| 332 if (index is 0) { | |
| 333 item.wrap = true; | |
| 334 items[rowIndex][0].wrap = false; | |
| 335 } | |
| 336 int oldLength = items[rowIndex].length; | |
| 337 CoolItem[] newRow = new CoolItem[oldLength + 1]; | |
| 338 System.arraycopy(items[rowIndex], 0, newRow, 0, index); | |
| 339 newRow[index] = item; | |
| 340 System.arraycopy(items[rowIndex], index, newRow, index + 1, oldLength - index); | |
| 341 items[rowIndex] = newRow; | |
| 342 | |
| 343 /* Adjust the width of the item to the left. */ | |
| 344 if (index > 0) { | |
| 345 CoolItem left = items[rowIndex][index - 1]; | |
| 346 Rectangle leftBounds = left.internalGetBounds(); | |
| 347 int newWidth = x - leftBounds.x; | |
| 348 if (newWidth < left.internalGetMinimumWidth()) { | |
| 349 x += left.internalGetMinimumWidth() - newWidth; | |
| 350 newWidth = left.internalGetMinimumWidth(); | |
| 351 } | |
| 352 left.setBounds(leftBounds.x, leftBounds.y, newWidth, leftBounds.height); | |
| 353 left.requestedWidth = newWidth; | |
| 354 } | |
| 355 | |
| 356 /* Set the item's bounds. */ | |
| 357 int width = 0, height = item.internalGetBounds().height; | |
| 358 if (index < items[rowIndex].length - 1) { | |
| 359 CoolItem right = items[rowIndex][index + 1]; | |
| 360 width = right.internalGetBounds().x - x; | |
| 361 if (width < right.internalGetMinimumWidth()) { | |
| 362 moveRight(right, right.internalGetMinimumWidth() - width); | |
| 363 width = right.internalGetBounds().x - x; | |
| 364 } | |
| 365 item.setBounds(x, rowY, width, height); | |
| 366 if (width < item.internalGetMinimumWidth()) moveLeft(item, item.internalGetMinimumWidth() - width); | |
| 367 } else { | |
| 368 width = Math.max(item.internalGetMinimumWidth(), barWidth - x); | |
| 369 item.setBounds(x, rowY, width, height); | |
| 370 if (x + width > barWidth) moveLeft(item, x + width - barWidth); | |
| 371 } | |
| 372 Rectangle bounds = item.internalGetBounds(); | |
| 373 item.requestedWidth = bounds.width; | |
| 374 internalRedraw(bounds.x, bounds.y, item.internalGetMinimumWidth(), bounds.height); | |
| 375 } | |
| 376 void internalRedraw (int x, int y, int width, int height) { | |
| 377 if ((style & DWT.VERTICAL) !is 0) { | |
| 378 redraw (y, x, height, width, false); | |
| 379 } else { | |
| 380 redraw (x, y, width, height, false); | |
| 381 } | |
| 382 } | |
| 383 void createItem (CoolItem item, int index) { | |
| 384 int itemCount = getItemCount(), row = 0; | |
| 385 if (!(0 <= index && index <= itemCount)) error (DWT.ERROR_INVALID_RANGE); | |
| 386 if (items.length is 0) { | |
| 387 items = new CoolItem[][]( 1,1 ); | |
| 388 items[0][0] = item; | |
| 389 } else { | |
| 390 int i = index; | |
| 391 /* find the row to insert into */ | |
| 392 if (index < itemCount) { | |
| 393 while (i > items[row].length) { | |
| 394 i -= items[row].length; | |
| 395 row++; | |
| 396 } | |
| 397 } else { | |
| 398 row = items.length - 1; | |
| 399 i = items[row].length; | |
| 400 } | |
| 401 | |
| 402 // Set the last item in the row to the preferred size | |
| 403 // and add the new one just to it's right | |
| 404 int lastIndex = items[row].length - 1; | |
| 405 CoolItem lastItem = items[row][lastIndex]; | |
| 406 if (lastItem.ideal) { | |
| 407 Rectangle bounds = lastItem.internalGetBounds(); | |
| 408 bounds.width = lastItem.preferredWidth; | |
| 409 bounds.height = lastItem.preferredHeight; | |
| 410 lastItem.requestedWidth = lastItem.preferredWidth; | |
| 411 lastItem.setBounds(bounds.x, bounds.y, bounds.width, bounds.height); | |
| 412 } | |
| 413 if (i is 0) { | |
| 414 item.wrap = true; | |
| 415 items[row][0].wrap = false; | |
| 416 } | |
| 417 int oldLength = items[row].length; | |
| 418 CoolItem[] newRow = new CoolItem[oldLength + 1]; | |
| 419 System.arraycopy(items[row], 0, newRow, 0, i); | |
| 420 newRow[i] = item; | |
| 421 System.arraycopy(items[row], i, newRow, i + 1, oldLength - i); | |
| 422 items[row] = newRow; | |
| 423 } | |
| 424 item.requestedWidth = CoolItem.MINIMUM_WIDTH; | |
| 425 | |
| 426 int length = originalItems.length; | |
| 427 CoolItem [] newOriginals = new CoolItem [length + 1]; | |
| 428 System.arraycopy (originalItems, 0, newOriginals, 0, index); | |
| 429 System.arraycopy (originalItems, index, newOriginals, index + 1, length - index); | |
| 430 newOriginals [index] = item; | |
| 431 originalItems = newOriginals; | |
| 432 layoutItems(); | |
| 433 | |
| 434 } | |
| 435 void destroyItem(CoolItem item) { | |
| 436 if (inDispose) return; | |
| 437 int row = findItem(item).y; | |
| 438 if (row is -1) return; | |
| 439 Rectangle bounds = item.internalGetBounds(); | |
| 440 removeItemFromRow(item, row, true); | |
| 441 | |
| 442 int index = 0; | |
| 443 while (index < originalItems.length) { | |
| 444 if (originalItems [index] is item) break; | |
| 445 index++; | |
| 446 } | |
| 447 int length = originalItems.length - 1; | |
| 448 CoolItem [] newOriginals = new CoolItem [length]; | |
| 449 System.arraycopy (originalItems, 0, newOriginals, 0, index); | |
| 450 System.arraycopy (originalItems, index + 1, newOriginals, index, length - index); | |
| 451 originalItems = newOriginals; | |
| 452 | |
| 453 internalRedraw(bounds.x, bounds.y, CoolItem.MINIMUM_WIDTH, bounds.height); | |
| 454 relayout(); | |
| 455 } | |
| 456 void moveDown(CoolItem item, int x_root) { | |
| 457 int oldRowIndex = findItem(item).y; | |
| 458 bool resize = false; | |
| 459 if (items[oldRowIndex].length is 1) { | |
| 460 resize = true; | |
| 461 /* If this is the only item in the bottom row, don't move it. */ | |
| 462 if (oldRowIndex is items.length - 1) return; | |
| 463 } | |
| 464 int newRowIndex = (items[oldRowIndex].length is 1) ? oldRowIndex : oldRowIndex + 1; | |
| 465 removeItemFromRow(item, oldRowIndex, false); | |
| 466 Rectangle old = item.internalGetBounds(); | |
| 467 internalRedraw(old.x, old.y, CoolItem.MINIMUM_WIDTH, old.height); | |
| 468 if (newRowIndex is items.length) { | |
| 469 /* Create a new bottom row for the item. */ | |
| 470 CoolItem[][] newRows = new CoolItem[][](items.length + 1); | |
| 471 SimpleType!(CoolItem[]).arraycopy(items, 0, newRows, 0, items.length); | |
| 472 int row = items.length; | |
| 473 newRows[row] = new CoolItem[1]; | |
| 474 newRows[row][0] = item; | |
| 475 items = newRows; | |
| 476 resize = true; | |
| 477 item.wrap = true; | |
| 478 } else { | |
| 479 insertItemIntoRow(item, newRowIndex, x_root); | |
| 480 } | |
| 481 if (resize) { | |
| 482 relayout(); | |
| 483 } else { | |
| 484 layoutItems(); | |
| 485 } | |
| 486 } | |
| 487 void moveLeft(CoolItem item, int pixels) { | |
| 488 Point point = findItem(item); | |
| 489 int row = point.y; | |
| 490 int index = point.x; | |
| 491 if (index is 0) return; | |
| 492 Rectangle bounds = item.internalGetBounds(); | |
| 493 int minSpaceOnLeft = 0; | |
| 494 for (int i = 0; i < index; i++) { | |
| 495 minSpaceOnLeft += items[row][i].internalGetMinimumWidth(); | |
| 496 } | |
| 497 int x = Math.max(minSpaceOnLeft, bounds.x - pixels); | |
| 498 CoolItem left = items[row][index - 1]; | |
| 499 Rectangle leftBounds = left.internalGetBounds(); | |
| 500 if (leftBounds.x + left.internalGetMinimumWidth() > x) { | |
| 501 int shift = leftBounds.x + left.internalGetMinimumWidth() - x; | |
| 502 moveLeft(left, shift); | |
| 503 leftBounds = left.internalGetBounds(); | |
| 504 } | |
| 505 int leftWidth = Math.max(left.internalGetMinimumWidth(), leftBounds.width - pixels); | |
| 506 left.setBounds(leftBounds.x, leftBounds.y, leftWidth, leftBounds.height); | |
| 507 left.requestedWidth = leftWidth; | |
| 508 int width = bounds.width + (bounds.x - x); | |
| 509 item.setBounds(x, bounds.y, width, bounds.height); | |
| 510 item.requestedWidth = width; | |
| 511 | |
| 512 int damagedWidth = bounds.x - x + CoolItem.MINIMUM_WIDTH; | |
| 513 if (damagedWidth > CoolItem.MINIMUM_WIDTH) { | |
| 514 internalRedraw(x, bounds.y, damagedWidth, bounds.height); | |
| 515 } | |
| 516 } | |
| 517 void moveRight(CoolItem item, int pixels) { | |
| 518 Point point = findItem(item); | |
| 519 int row = point.y; | |
| 520 int index = point.x; | |
| 521 if (index is 0) return; | |
| 522 Rectangle bounds = item.internalGetBounds(); | |
| 523 int minSpaceOnRight = 0; | |
| 524 for (int i = index; i < items[row].length; i++) { | |
| 525 minSpaceOnRight += items[row][i].internalGetMinimumWidth(); | |
| 526 } | |
| 527 int max = getWidth() - minSpaceOnRight; | |
| 528 int x = Math.min(max, bounds.x + pixels); | |
| 529 int width = 0; | |
| 530 if (index + 1 is items[row].length) { | |
| 531 width = getWidth() - x; | |
| 532 } else { | |
| 533 CoolItem right = items[row][index + 1]; | |
| 534 Rectangle rightBounds = right.internalGetBounds(); | |
| 535 if (x + item.internalGetMinimumWidth() > rightBounds.x) { | |
| 536 int shift = x + item.internalGetMinimumWidth() - rightBounds.x; | |
| 537 moveRight(right, shift); | |
| 538 rightBounds = right.internalGetBounds(); | |
| 539 } | |
| 540 width = rightBounds.x - x; | |
| 541 } | |
| 542 item.setBounds(x, bounds.y, width, bounds.height); | |
| 543 item.requestedWidth = width; | |
| 544 CoolItem left = items[row][index - 1]; | |
| 545 Rectangle leftBounds = left.internalGetBounds(); | |
| 546 int leftWidth = x - leftBounds.x; | |
| 547 left.setBounds(leftBounds.x, leftBounds.y, leftWidth, leftBounds.height); | |
| 548 left.requestedWidth = leftWidth; | |
| 549 | |
| 550 int damagedWidth = x - bounds.x + CoolItem.MINIMUM_WIDTH + CoolItem.MARGIN_WIDTH; | |
| 551 if (x - bounds.x > 0) { | |
| 552 internalRedraw(bounds.x - CoolItem.MARGIN_WIDTH, bounds.y, damagedWidth, bounds.height); | |
| 553 } | |
| 554 } | |
| 555 void moveUp(CoolItem item, int x_root) { | |
| 556 Point point = findItem(item); | |
| 557 int oldRowIndex = point.y; | |
| 558 bool resize = false; | |
| 559 if (items[oldRowIndex].length is 1) { | |
| 560 resize = true; | |
| 561 /* If this is the only item in the top row, don't move it. */ | |
| 562 if (oldRowIndex is 0) return; | |
| 563 } | |
| 564 removeItemFromRow(item, oldRowIndex, false); | |
| 565 Rectangle old = item.internalGetBounds(); | |
| 566 internalRedraw(old.x, old.y, CoolItem.MINIMUM_WIDTH, old.height); | |
| 567 int newRowIndex = Math.max(0, oldRowIndex - 1); | |
| 568 if (oldRowIndex is 0) { | |
| 569 /* Create a new top row for the item. */ | |
| 570 CoolItem[][] newRows = new CoolItem[][]( items.length + 1 ); | |
| 571 SimpleType!(CoolItem[]).arraycopy(items, 0, newRows, 1, items.length); | |
| 572 newRows[0] = new CoolItem[1]; | |
| 573 newRows[0][0] = item; | |
| 574 items = newRows; | |
| 575 resize = true; | |
| 576 item.wrap = true; | |
| 577 } else { | |
| 578 insertItemIntoRow(item, newRowIndex, x_root); | |
| 579 } | |
| 580 if (resize) { | |
| 581 relayout(); | |
| 582 } else { | |
| 583 layoutItems(); | |
| 584 } | |
| 585 } | |
| 586 void onDispose(Event event) { | |
| 587 /* | |
| 588 * Usually when an item is disposed, destroyItem will change the size of the items array | |
| 589 * and reset the bounds of all the remaining cool items. | |
| 590 * Since the whole cool bar is being disposed, this is not necessary. For speed | |
| 591 * the inDispose flag is used to skip over this part of the item dispose. | |
| 592 */ | |
| 593 if (inDispose) return; | |
| 594 inDispose = true; | |
| 595 notifyListeners(DWT.Dispose, event); | |
| 596 event.type = DWT.None; | |
| 597 for (int i = 0; i < items.length; i++) { | |
| 598 for (int j = 0; j < items[i].length; j++) { | |
| 599 items[i][j].dispose(); | |
| 600 } | |
| 601 } | |
| 602 hoverCursor.dispose(); | |
| 603 dragCursor.dispose(); | |
| 604 cursor = null; | |
| 605 } | |
| 606 void onMouseDown(Event event) { | |
| 607 if (isLocked || event.button !is 1) return; | |
| 608 fixEvent(event); | |
| 609 dragging = getGrabbedItem(event.x, event.y); | |
| 610 if (dragging !is null) { | |
| 611 mouseXOffset = event.x; | |
| 612 itemXOffset = mouseXOffset - dragging.internalGetBounds().x; | |
| 613 _setCursor(dragCursor); | |
| 614 } | |
| 615 fixEvent(event); | |
| 616 } | |
| 617 void onMouseExit() { | |
| 618 if (dragging is null) _setCursor(null); | |
| 619 } | |
| 620 void onMouseMove(Event event) { | |
| 621 if (isLocked) return; | |
| 622 fixEvent(event); | |
| 623 CoolItem grabbed = getGrabbedItem(event.x, event.y); | |
| 624 if (dragging !is null) { | |
| 240 | 625 int left_root = toDisplay(new Point(event.x - itemXOffset, event.y)).x; |
| 76 | 626 Rectangle bounds = dragging.internalGetBounds(); |
| 627 if (event.y < bounds.y) { | |
| 628 moveUp(dragging, left_root); | |
| 629 } else if (event.y > bounds.y + bounds.height){ | |
| 630 moveDown(dragging, left_root); | |
| 631 } else if (event.x < mouseXOffset) { | |
| 632 int distance = Math.min(mouseXOffset, bounds.x + itemXOffset) - event.x; | |
| 633 if (distance > 0) moveLeft(dragging, distance); | |
| 634 } else if (event.x > mouseXOffset) { | |
| 635 int distance = event.x - Math.max(mouseXOffset, bounds.x + itemXOffset); | |
| 636 if (distance > 0) moveRight(dragging, distance); | |
| 637 } | |
| 638 mouseXOffset = event.x; | |
| 639 } else { | |
| 640 if (grabbed !is null) { | |
| 641 _setCursor(hoverCursor); | |
| 642 } else { | |
| 643 _setCursor(null); | |
| 644 } | |
| 645 } | |
| 646 fixEvent(event); | |
| 647 } | |
| 648 void onMouseUp(Event event) { | |
| 649 _setCursor(null); | |
| 650 dragging = null; | |
| 651 } | |
| 652 void onMouseDoubleClick(Event event) { | |
| 653 if (isLocked) return; | |
| 654 dragging = null; | |
| 655 fixEvent(event); | |
| 656 CoolItem target = getGrabbedItem(event.x, event.y); | |
| 657 if (target is null) { | |
| 658 _setCursor(null); | |
| 659 } else { | |
| 660 Point location = findItem(target); | |
| 661 int row = location.y; | |
| 662 int index = location.x; | |
| 663 if (items[row].length > 1) { | |
| 664 Rectangle bounds = target.internalGetBounds(); | |
| 665 int maxSize = getWidth (); | |
| 666 for (int i = 0; i < items[row].length; i++) { | |
| 667 if (i !is index) { | |
| 668 maxSize -= items[row][i].internalGetMinimumWidth(); | |
| 669 } | |
| 670 } | |
| 671 if (bounds.width is maxSize) { | |
| 672 /* The item is at its maximum width. It should be resized to its minimum width. */ | |
| 673 int distance = bounds.width - target.internalGetMinimumWidth(); | |
| 674 if (index + 1 < items[row].length) { | |
| 675 /* There is an item to the right. Maximize it. */ | |
| 676 CoolItem right = items[row][index + 1]; | |
| 677 moveLeft(right, distance); | |
| 678 } else { | |
| 679 /* There is no item to the right. Move the item all the way right. */ | |
| 680 moveRight(target, distance); | |
| 681 } | |
| 682 } else if (bounds.width < target.preferredWidth) { | |
| 683 /* The item is less than its preferredWidth. Resize to preferredWidth. */ | |
| 684 int distance = target.preferredWidth - bounds.width; | |
| 685 if (index + 1 < items[row].length) { | |
| 686 CoolItem right = items[row][index + 1]; | |
| 687 moveRight(right, distance); | |
| 688 distance = target.preferredWidth - target.internalGetBounds().width; | |
| 689 } | |
| 690 if (distance > 0) { | |
| 691 moveLeft(target, distance); | |
| 692 } | |
| 693 } else { | |
| 694 /* The item is at its minimum width. Maximize it. */ | |
| 695 for (int i = 0; i < items[row].length; i++) { | |
| 696 if (i !is index) { | |
| 697 CoolItem item = items[row][i]; | |
| 698 item.requestedWidth = Math.max(item.internalGetMinimumWidth(), CoolItem.MINIMUM_WIDTH); | |
| 699 } | |
| 700 } | |
| 701 target.requestedWidth = maxSize; | |
| 702 layoutItems(); | |
| 703 } | |
| 704 _setCursor(hoverCursor); | |
| 705 } | |
| 706 } | |
| 707 fixEvent(event); | |
| 708 } | |
| 709 void onPaint(Event event) { | |
| 710 GC gc = event.gc; | |
| 711 if (items.length is 0) return; | |
| 712 Color shadowColor = display.getSystemColor(DWT.COLOR_WIDGET_NORMAL_SHADOW); | |
| 713 Color highlightColor = display.getSystemColor(DWT.COLOR_WIDGET_HIGHLIGHT_SHADOW); | |
| 714 bool vertical = (style & DWT.VERTICAL) !is 0; | |
| 715 bool flat = (style & DWT.FLAT) !is 0; | |
| 716 int stopX = getWidth(); | |
| 717 Rectangle rect; | |
| 718 Rectangle clipping = gc.getClipping(); | |
| 719 for (int row = 0; row < items.length; row++) { | |
| 720 Rectangle bounds = new Rectangle(0, 0, 0, 0); | |
| 721 for (int i = 0; i < items[row].length; i++) { | |
| 722 bounds = items[row][i].internalGetBounds(); | |
| 723 rect = fixRectangle(bounds.x, bounds.y, bounds.width, bounds.height); | |
| 724 if (!clipping.intersects(rect)) continue; | |
| 725 bool nativeGripper = false; | |
| 726 | |
| 727 /* Draw gripper. */ | |
| 728 if (!isLocked) { | |
| 729 rect = fixRectangle(bounds.x, bounds.y, CoolItem.MINIMUM_WIDTH, bounds.height); | |
| 730 if (!flat) nativeGripper = drawGripper(rect.x, rect.y, rect.width, rect.height, vertical); | |
| 731 if (!nativeGripper) { | |
| 732 int grabberTrim = 2; | |
| 733 int grabberHeight = bounds.height - (2 * grabberTrim) - 1; | |
| 734 gc.setForeground(shadowColor); | |
| 735 rect = fixRectangle( | |
| 736 bounds.x + CoolItem.MARGIN_WIDTH, | |
| 737 bounds.y + grabberTrim, | |
| 738 2, | |
| 739 grabberHeight); | |
| 740 gc.drawRectangle(rect); | |
| 741 gc.setForeground(highlightColor); | |
| 742 rect = fixRectangle( | |
| 743 bounds.x + CoolItem.MARGIN_WIDTH, | |
| 744 bounds.y + grabberTrim + 1, | |
| 745 bounds.x + CoolItem.MARGIN_WIDTH, | |
| 746 bounds.y + grabberTrim + grabberHeight - 1); | |
| 747 gc.drawLine(rect.x, rect.y, rect.width, rect.height); | |
| 748 rect = fixRectangle( | |
| 749 bounds.x + CoolItem.MARGIN_WIDTH, | |
| 750 bounds.y + grabberTrim, | |
| 751 bounds.x + CoolItem.MARGIN_WIDTH + 1, | |
| 752 bounds.y + grabberTrim); | |
| 753 gc.drawLine(rect.x, rect.y, rect.width, rect.height); | |
| 754 } | |
| 755 } | |
| 756 | |
| 757 /* Draw separator. */ | |
| 758 if (!flat && !nativeGripper && i !is 0) { | |
| 759 gc.setForeground(shadowColor); | |
| 760 rect = fixRectangle(bounds.x, bounds.y, bounds.x, bounds.y + bounds.height - 1); | |
| 761 gc.drawLine(rect.x, rect.y, rect.width, rect.height); | |
| 762 gc.setForeground(highlightColor); | |
| 763 rect = fixRectangle(bounds.x + 1, bounds.y, bounds.x + 1, bounds.y + bounds.height - 1); | |
| 764 gc.drawLine(rect.x, rect.y, rect.width, rect.height); | |
| 765 } | |
| 766 } | |
| 767 if (!flat && row + 1 < items.length) { | |
| 768 /* Draw row separator. */ | |
| 769 int separatorY = bounds.y + bounds.height; | |
| 770 gc.setForeground(shadowColor); | |
| 771 rect = fixRectangle(0, separatorY, stopX, separatorY); | |
| 772 gc.drawLine(rect.x, rect.y, rect.width, rect.height); | |
| 773 gc.setForeground(highlightColor); | |
| 774 rect = fixRectangle(0, separatorY + 1, stopX, separatorY + 1); | |
| 775 gc.drawLine(rect.x, rect.y, rect.width, rect.height); | |
| 776 } | |
| 777 } | |
| 778 } | |
| 779 void onResize () { | |
| 780 layoutItems (); | |
| 781 } | |
|
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782 override void removeControl (Control control) { |
| 76 | 783 super.removeControl (control); |
| 784 CoolItem [] items = getItems (); | |
| 785 for (int i=0; i<items.length; i++) { | |
| 786 CoolItem item = items [i]; | |
| 787 if (item.control is control) item.setControl (null); | |
| 788 } | |
| 789 } | |
| 790 /** | |
| 791 * Remove the item from the row. Adjust the x and width values | |
| 792 * appropriately. | |
| 793 */ | |
| 794 void removeItemFromRow(CoolItem item, int rowIndex, bool disposed) { | |
| 795 int index = findItem(item).x; | |
| 796 int newLength = items[rowIndex].length - 1; | |
| 797 Rectangle itemBounds = item.internalGetBounds(); | |
| 798 item.wrap = false; | |
| 799 if (newLength > 0) { | |
| 800 CoolItem[] newRow = new CoolItem[newLength]; | |
| 801 System.arraycopy(items[rowIndex], 0, newRow, 0, index); | |
| 802 System.arraycopy(items[rowIndex], index + 1, newRow, index, newRow.length - index); | |
| 803 items[rowIndex] = newRow; | |
| 804 items[rowIndex][0].wrap = true; | |
| 805 } else { | |
| 806 CoolItem[][] newRows = new CoolItem[][]( items.length - 1 ); | |
| 807 SimpleType!(CoolItem[]).arraycopy(items, 0, newRows, 0, rowIndex); | |
| 808 SimpleType!(CoolItem[]).arraycopy(items, rowIndex + 1, newRows, rowIndex, newRows.length - rowIndex); | |
| 809 items = newRows; | |
| 810 return; | |
| 811 } | |
| 812 if (!disposed) { | |
| 813 if (index is 0) { | |
| 814 CoolItem first = items[rowIndex][0]; | |
| 815 Rectangle bounds = first.internalGetBounds(); | |
| 816 int width = bounds.x + bounds.width; | |
| 817 first.setBounds(0, bounds.y, width, bounds.height); | |
| 818 first.requestedWidth = width; | |
| 819 internalRedraw(bounds.x, bounds.y, CoolItem.MINIMUM_WIDTH, bounds.height); | |
| 820 } else { | |
| 821 CoolItem previous = items[rowIndex][index - 1]; | |
| 822 Rectangle bounds = previous.internalGetBounds(); | |
| 823 int width = bounds.width + itemBounds.width; | |
| 824 previous.setBounds(bounds.x, bounds.y, width, bounds.height); | |
| 825 previous.requestedWidth = width; | |
| 826 } | |
| 827 } | |
| 828 } | |
| 829 /** | |
| 830 * Return the height of the bar after it has | |
| 831 * been properly laid out for the given width. | |
| 832 */ | |
| 833 int layoutItems () { | |
| 834 int y = 0, width; | |
| 835 if ((style&DWT.VERTICAL) !is 0) { | |
| 836 width = getClientArea().height; | |
| 837 } else { | |
| 838 width = getClientArea().width; | |
| 839 } | |
| 840 wrapItems(width); | |
| 841 int rowSpacing = (style & DWT.FLAT) !is 0 ? 0 : ROW_SPACING; | |
| 842 for (int row = 0; row < items.length; row++) { | |
| 843 int count = items[row].length; | |
| 844 int x = 0; | |
| 845 | |
| 846 /* determine the height and the available width for the row */ | |
| 847 int rowHeight = 0; | |
| 848 int available = width; | |
| 849 for (int i = 0; i < count; i++) { | |
| 850 CoolItem item = items[row][i]; | |
| 851 rowHeight = Math.max(rowHeight, item.internalGetBounds().height); | |
| 852 available -= item.internalGetMinimumWidth(); | |
| 853 } | |
| 854 if (row > 0) y += rowSpacing; | |
| 855 | |
| 856 /* lay the items out */ | |
| 857 for (int i = 0; i < count; i++) { | |
| 858 CoolItem child = items[row][i]; | |
| 859 int newWidth = available + child.internalGetMinimumWidth(); | |
| 860 if (i + 1 < count) { | |
| 861 newWidth = Math.min(newWidth, child.requestedWidth); | |
| 862 available -= (newWidth - child.internalGetMinimumWidth()); | |
| 863 } | |
| 864 Rectangle oldBounds = child.internalGetBounds(); | |
| 865 Rectangle newBounds = new Rectangle(x, y, newWidth, rowHeight); | |
| 866 if ( oldBounds !=/*eq*/ newBounds) { | |
| 867 child.setBounds(newBounds.x, newBounds.y, newBounds.width, newBounds.height); | |
| 868 Rectangle damage = new Rectangle(0, 0, 0, 0); | |
| 869 /* Cases are in descending order from most area to redraw to least. */ | |
| 870 if (oldBounds.y !is newBounds.y) { | |
| 871 damage = newBounds; | |
| 872 damage.add(oldBounds); | |
| 873 /* Redraw the row separator as well. */ | |
| 874 damage.y -= rowSpacing; | |
| 875 damage.height += 2 * rowSpacing; | |
| 876 } else if (oldBounds.height !is newBounds.height) { | |
| 877 /* | |
| 878 * Draw from the bottom of the gripper to the bottom of the new area. | |
| 879 * (Bottom of the gripper is -3 from the bottom of the item). | |
| 880 */ | |
| 881 damage.y = newBounds.y + Math.min(oldBounds.height, newBounds.height) - 3; | |
| 882 damage.height = newBounds.y + newBounds.height + rowSpacing; | |
| 883 damage.x = oldBounds.x - CoolItem.MARGIN_WIDTH; | |
| 884 damage.width = oldBounds.width + CoolItem.MARGIN_WIDTH; | |
| 885 } else if (oldBounds.x !is newBounds.x) { | |
| 886 /* Redraw only the difference between the separators. */ | |
| 887 damage.x = Math.min(oldBounds.x, newBounds.x); | |
| 888 damage.width = Math.abs(oldBounds.x - newBounds.x) + CoolItem.MINIMUM_WIDTH; | |
| 889 damage.y = oldBounds.y; | |
| 890 damage.height = oldBounds.height; | |
| 891 } | |
| 892 internalRedraw(damage.x, damage.y, damage.width, damage.height); | |
| 893 } | |
| 894 x += newWidth; | |
| 895 } | |
| 896 y += rowHeight; | |
| 897 } | |
| 898 return y; | |
| 899 } | |
| 900 void relayout() { | |
| 901 Point size = getSize(); | |
| 902 int height = layoutItems(); | |
| 903 if ((style & DWT.VERTICAL) !is 0) { | |
| 904 Rectangle trim = computeTrim (0, 0, height, 0); | |
| 905 if (height !is size.x) super.setSize(trim.width, size.y); | |
| 906 } else { | |
| 907 Rectangle trim = computeTrim (0, 0, 0, height); | |
| 908 if (height !is size.y) super.setSize(size.x, trim.height); | |
| 909 } | |
| 910 } | |
| 911 /** | |
| 912 * Returns an array of zero-relative ints that map | |
| 913 * the creation order of the receiver's items to the | |
| 914 * order in which they are currently being displayed. | |
| 915 * <p> | |
| 916 * Specifically, the indices of the returned array represent | |
| 917 * the current visual order of the items, and the contents | |
| 918 * of the array represent the creation order of the items. | |
| 919 * </p><p> | |
| 920 * Note: This is not the actual structure used by the receiver | |
| 921 * to maintain its list of items, so modifying the array will | |
| 922 * not affect the receiver. | |
| 923 * </p> | |
| 924 * | |
| 925 * @return the current visual order of the receiver's items | |
| 926 * | |
| 927 * @exception DWTException <ul> | |
| 928 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 929 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 930 * </ul> | |
| 931 */ | |
| 932 public int[] getItemOrder () { | |
| 933 checkWidget (); | |
| 934 int count = getItemCount (); | |
| 935 int [] indices = new int [count]; | |
| 936 count = 0; | |
| 937 for (int i = 0; i < items.length; i++) { | |
| 938 for (int j = 0; j < items[i].length; j++) { | |
| 939 CoolItem item = items[i][j]; | |
| 940 int index = 0; | |
| 941 while (index<originalItems.length) { | |
| 942 if (originalItems [index] is item) break; | |
| 943 index++; | |
| 944 } | |
| 945 if (index is originalItems.length) error (DWT.ERROR_CANNOT_GET_ITEM); | |
| 946 indices [count++] = index; | |
| 947 } | |
| 948 } | |
| 949 return indices; | |
| 950 } | |
| 951 void setItemOrder (int[] itemOrder) { | |
|
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952 // DWT extension: allow null for zero length string |
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953 //if (itemOrder is null) error(DWT.ERROR_NULL_ARGUMENT); |
| 76 | 954 int count = originalItems.length; |
| 955 if (itemOrder.length !is count) error(DWT.ERROR_INVALID_ARGUMENT); | |
| 956 | |
| 957 /* Ensure that itemOrder does not contain any duplicates. */ | |
| 958 bool [] set = new bool [count]; | |
| 959 for (int i = 0; i < set.length; i++) set [i] = false; | |
| 960 for (int i = 0; i < itemOrder.length; i++) { | |
| 961 if (itemOrder [i] < 0 || itemOrder [i] >= count) error (DWT.ERROR_INVALID_ARGUMENT); | |
| 962 if (set [itemOrder [i]]) error (DWT.ERROR_INVALID_ARGUMENT); | |
| 963 set [itemOrder [i]] = true; | |
| 964 } | |
| 965 | |
| 966 CoolItem[] row = new CoolItem[count]; | |
| 967 for (int i = 0; i < count; i++) { | |
| 968 row[i] = originalItems[itemOrder[i]]; | |
| 969 } | |
| 970 items = new CoolItem[][](1,count); | |
| 971 items[0] = row; | |
| 972 } | |
| 973 /** | |
| 974 * Returns an array of points whose x and y coordinates describe | |
| 975 * the widths and heights (respectively) of the items in the receiver | |
| 976 * in the order in which they are currently being displayed. | |
| 977 * | |
| 978 * @return the receiver's item sizes in their current visual order | |
| 979 * | |
| 980 * @exception DWTException <ul> | |
| 981 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 982 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 983 * </ul> | |
| 984 */ | |
| 985 public Point[] getItemSizes () { | |
| 986 checkWidget(); | |
| 987 CoolItem[] items = getItems(); | |
| 988 Point[] sizes = new Point[items.length]; | |
| 989 for (int i = 0; i < items.length; i++) { | |
| 990 sizes[i] = items[i].getSize(); | |
| 991 } | |
| 992 return sizes; | |
| 993 } | |
| 994 void setItemSizes (Point[] sizes) { | |
|
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995 // DWT extension: allow null for zero length string |
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996 //if (sizes is null) error(DWT.ERROR_NULL_ARGUMENT); |
| 76 | 997 CoolItem[] items = getItems(); |
| 998 if (sizes.length !is items.length) error(DWT.ERROR_INVALID_ARGUMENT); | |
| 999 for (int i = 0; i < items.length; i++) { | |
| 1000 items[i].setSize(sizes[i]); | |
| 1001 } | |
| 1002 } | |
| 1003 /** | |
| 1004 * Returns whether or not the receiver is 'locked'. When a coolbar | |
| 1005 * is locked, its items cannot be repositioned. | |
| 1006 * | |
| 1007 * @return true if the coolbar is locked, false otherwise | |
| 1008 * | |
| 1009 * @exception DWTException <ul> | |
| 1010 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1011 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1012 * </ul> | |
| 1013 * | |
| 1014 * @since 2.0 | |
| 1015 */ | |
| 1016 public bool getLocked () { | |
| 1017 checkWidget (); | |
| 1018 return isLocked; | |
| 1019 } | |
| 1020 int getWidth () { | |
| 1021 if ((style & DWT.VERTICAL) !is 0) return getSize().y; | |
| 1022 return getSize().x; | |
| 1023 } | |
| 1024 /** | |
| 1025 * Returns an array of ints that describe the zero-relative | |
| 1026 * indices of any item(s) in the receiver that will begin on | |
| 1027 * a new row. The 0th visible item always begins the first row, | |
| 1028 * therefore it does not count as a wrap index. | |
| 1029 * | |
| 1030 * @return an array containing the receiver's wrap indices, or an empty array if all items are in one row | |
| 1031 * | |
| 1032 * @exception DWTException <ul> | |
| 1033 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1034 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1035 * </ul> | |
| 1036 */ | |
| 1037 public int[] getWrapIndices () { | |
| 1038 checkWidget(); | |
| 1039 if (items.length <= 1) return null; | |
| 1040 int[] wrapIndices = new int[]( items.length - 1 ); | |
| 1041 int i = 0, nextWrap = items[0].length; | |
| 1042 for (int row = 1; row < items.length; row++) { | |
| 1043 if (items[row][0].wrap) wrapIndices[i++] = nextWrap; | |
| 1044 nextWrap += items[row].length; | |
| 1045 } | |
| 1046 if (i !is wrapIndices.length) { | |
| 1047 int[] tmp = new int[i]; | |
| 1048 System.arraycopy(wrapIndices, 0, tmp, 0, i); | |
| 1049 return tmp; | |
| 1050 } | |
| 1051 return wrapIndices; | |
| 1052 } | |
| 1053 /** | |
| 1054 * Sets whether or not the receiver is 'locked'. When a coolbar | |
| 1055 * is locked, its items cannot be repositioned. | |
| 1056 * | |
| 1057 * @param locked lock the coolbar if true, otherwise unlock the coolbar | |
| 1058 * | |
| 1059 * @exception DWTException <ul> | |
| 1060 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1061 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1062 * </ul> | |
| 1063 * | |
| 1064 * @since 2.0 | |
| 1065 */ | |
| 1066 public void setLocked (bool locked) { | |
| 1067 checkWidget (); | |
| 1068 if (isLocked !is locked) { | |
| 1069 redraw(); | |
| 1070 } | |
| 1071 isLocked = locked; | |
| 1072 | |
| 1073 } | |
| 1074 /** | |
| 1075 * Sets the indices of all item(s) in the receiver that will | |
| 1076 * begin on a new row. The indices are given in the order in | |
| 1077 * which they are currently being displayed. The 0th item | |
| 1078 * always begins the first row, therefore it does not count | |
| 1079 * as a wrap index. If indices is null or empty, the items | |
| 1080 * will be placed on one line. | |
| 1081 * | |
| 1082 * @param indices an array of wrap indices, or null | |
| 1083 * | |
| 1084 * @exception DWTException <ul> | |
| 1085 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1086 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1087 * </ul> | |
| 1088 */ | |
| 1089 public void setWrapIndices (int[] indices) { | |
| 1090 checkWidget(); | |
| 1091 if (indices is null) indices = new int[0]; | |
| 1092 int count = originalItems.length; | |
| 1093 for (int i=0; i<indices.length; i++) { | |
| 1094 if (indices[i] < 0 || indices[i] >= count) { | |
| 1095 error (DWT.ERROR_INVALID_ARGUMENT); | |
| 1096 } | |
| 1097 } | |
| 1098 for (int i=0; i<originalItems.length; i++) { | |
| 1099 originalItems[i].wrap = false; | |
| 1100 } | |
| 1101 for (int i=0; i<indices.length; i++) { | |
| 1102 int index = indices[i]; | |
| 1103 for (int row = 0; row < items.length; row++) { | |
| 1104 if (items[row].length > index) { | |
| 1105 items[row][index].wrap = true; | |
| 1106 break; | |
| 1107 } else { | |
| 1108 index -= items[row].length; | |
| 1109 } | |
| 1110 } | |
| 1111 } | |
| 1112 relayout(); | |
| 1113 } | |
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1114 public override void setCursor (Cursor cursor) { |
| 76 | 1115 checkWidget (); |
| 1116 super.setCursor (this.cursor = cursor); | |
| 1117 } | |
| 1118 /** | |
| 1119 * Sets the receiver's item order, wrap indices, and item sizes | |
| 1120 * all at once. This method is typically used to restore the | |
| 1121 * displayed state of the receiver to a previously stored state. | |
| 1122 * <p> | |
| 1123 * The item order is the order in which the items in the receiver | |
| 1124 * should be displayed, given in terms of the zero-relative ordering | |
| 1125 * of when the items were added. | |
| 1126 * </p><p> | |
| 1127 * The wrap indices are the indices of all item(s) in the receiver | |
| 1128 * that will begin on a new row. The indices are given in the order | |
| 1129 * specified by the item order. The 0th item always begins the first | |
| 1130 * row, therefore it does not count as a wrap index. If wrap indices | |
| 1131 * is null or empty, the items will be placed on one line. | |
| 1132 * </p><p> | |
| 1133 * The sizes are specified in an array of points whose x and y | |
| 1134 * coordinates describe the new widths and heights (respectively) | |
| 1135 * of the receiver's items in the order specified by the item order. | |
| 1136 * </p> | |
| 1137 * | |
| 1138 * @param itemOrder an array of indices that describe the new order to display the items in | |
| 1139 * @param wrapIndices an array of wrap indices, or null | |
| 1140 * @param sizes an array containing the new sizes for each of the receiver's items in visual order | |
| 1141 * | |
| 1142 * @exception DWTException <ul> | |
| 1143 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1144 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1145 * </ul> | |
| 1146 * @exception IllegalArgumentException <ul> | |
| 1147 * <li>ERROR_INVALID_ARGUMENT - if item order or sizes is not the same length as the number of items</li> | |
| 1148 * </ul> | |
| 1149 */ | |
| 1150 public void setItemLayout (int[] itemOrder, int[] wrapIndices, Point[] sizes) { | |
| 1151 checkWidget(); | |
| 1152 setItemOrder(itemOrder); | |
| 1153 setWrapIndices(wrapIndices); | |
| 1154 setItemSizes(sizes); | |
| 1155 relayout(); | |
| 1156 } | |
| 1157 void wrapItems (int maxWidth) { | |
| 1158 int itemCount = originalItems.length; | |
| 1159 if (itemCount < 2) return; | |
| 1160 CoolItem[] itemsVisual = new CoolItem[itemCount]; | |
| 1161 int start = 0; | |
| 1162 for (int row = 0; row < items.length; row++) { | |
| 1163 System.arraycopy(items[row], 0, itemsVisual, start, items[row].length); | |
| 1164 start += items[row].length; | |
| 1165 } | |
| 1166 CoolItem[][] newItems = new CoolItem[][](itemCount); | |
| 1167 int rowCount = 0, rowWidth = 0; | |
| 1168 start = 0; | |
| 1169 for (int i = 0; i < itemCount; i++) { | |
| 1170 CoolItem item = itemsVisual[i]; | |
| 1171 int itemWidth = item.internalGetMinimumWidth(); | |
| 1172 if ((i > 0 && item.wrap) || (maxWidth !is DWT.DEFAULT && rowWidth + itemWidth > maxWidth)) { | |
| 1173 if (i is start) { | |
| 1174 newItems[rowCount] = new CoolItem[1]; | |
| 1175 newItems[rowCount][0] = item; | |
| 1176 start = i + 1; | |
| 1177 rowWidth = 0; | |
| 1178 } else { | |
| 1179 int count = i - start; | |
| 1180 newItems[rowCount] = new CoolItem[count]; | |
| 1181 System.arraycopy(itemsVisual, start, newItems[rowCount], 0, count); | |
| 1182 start = i; | |
| 1183 rowWidth = itemWidth; | |
| 1184 } | |
| 1185 rowCount++; | |
| 1186 } else { | |
| 1187 rowWidth += itemWidth; | |
| 1188 } | |
| 1189 } | |
| 1190 if (start < itemCount) { | |
| 1191 int count = itemCount - start; | |
| 1192 newItems[rowCount] = new CoolItem[count]; | |
| 1193 System.arraycopy(itemsVisual, start, newItems[rowCount], 0, count); | |
| 1194 rowCount++; | |
| 1195 } | |
| 1196 if (newItems.length !is rowCount) { | |
| 1197 CoolItem[][] tmp = new CoolItem[][](rowCount); | |
| 1198 SimpleType!(CoolItem[]).arraycopy(newItems, 0, tmp, 0, rowCount); | |
| 1199 items = tmp; | |
| 1200 } else { | |
| 1201 items = newItems; | |
| 1202 } | |
| 1203 } | |
| 1204 } |