Mercurial > projects > dwt-win
annotate dwt/layout/GridLayout.d @ 197:184ab53b7785
Changes and fixes for jface
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Thu, 10 Apr 2008 11:19:49 +0200 |
| parents | 9a64a7781bab |
| children | ab60f3309436 |
| rev | line source |
|---|---|
| 0 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2007 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwt.layout.GridLayout; | |
| 14 | |
| 15 import dwt.layout.GridData; | |
| 16 import dwt.DWT; | |
| 17 import dwt.graphics.Point; | |
| 18 import dwt.graphics.Rectangle; | |
| 19 import dwt.widgets.Control; | |
| 20 import dwt.widgets.Composite; | |
| 21 import dwt.widgets.Layout; | |
| 22 import dwt.widgets.Scrollable; | |
| 23 | |
| 24 import dwt.dwthelper.System; | |
| 25 | |
| 26 import tango.text.Util; | |
| 27 import tango.util.Convert; | |
| 28 import Math = tango.math.Math; | |
| 29 | |
| 30 | |
| 31 /** | |
| 32 * Instances of this class lay out the control children of a | |
| 33 * <code>Composite</code> in a grid. | |
| 34 * <p> | |
| 35 * <code>GridLayout</code> has a number of configuration fields, and the | |
| 36 * controls it lays out can have an associated layout data object, called | |
| 37 * <code>GridData</code>. The power of <code>GridLayout</code> lies in the | |
| 38 * ability to configure <code>GridData</code> for each control in the layout. | |
| 39 * </p> | |
| 40 * <p> | |
| 41 * The following code creates a shell managed by a <code>GridLayout</code> | |
| 42 * with 3 columns: | |
| 43 * <pre> | |
| 44 * Display display = new Display(); | |
| 45 * Shell shell = new Shell(display); | |
| 46 * GridLayout gridLayout = new GridLayout(); | |
| 47 * gridLayout.numColumns = 3; | |
| 48 * shell.setLayout(gridLayout); | |
| 49 * </pre> | |
| 50 * The <code>numColumns</code> field is the most important field in a | |
| 51 * <code>GridLayout</code>. Widgets are laid out in columns from left | |
| 52 * to right, and a new row is created when <code>numColumns</code> + 1 | |
| 53 * controls are added to the <code>Composite<code>. | |
| 54 * </p> | |
| 55 * | |
| 56 * @see GridData | |
| 57 */ | |
| 58 public final class GridLayout : Layout { | |
| 59 | |
| 60 /** | |
| 61 * numColumns specifies the number of cell columns in the layout. | |
| 62 * If numColumns has a value less than 1, the layout will not | |
| 63 * set the size and position of any controls. | |
| 64 * | |
| 65 * The default value is 1. | |
| 66 */ | |
| 67 public int numColumns = 1; | |
| 68 | |
| 69 /** | |
| 70 * makeColumnsEqualWidth specifies whether all columns in the layout | |
| 71 * will be forced to have the same width. | |
| 72 * | |
| 73 * The default value is false. | |
| 74 */ | |
| 75 public bool makeColumnsEqualWidth = false; | |
| 76 | |
| 77 /** | |
| 78 * marginWidth specifies the number of pixels of horizontal margin | |
| 79 * that will be placed along the left and right edges of the layout. | |
| 80 * | |
| 81 * The default value is 5. | |
| 82 */ | |
| 83 public int marginWidth = 5; | |
| 84 | |
| 85 /** | |
| 86 * marginHeight specifies the number of pixels of vertical margin | |
| 87 * that will be placed along the top and bottom edges of the layout. | |
| 88 * | |
| 89 * The default value is 5. | |
| 90 */ | |
| 91 public int marginHeight = 5; | |
| 92 | |
| 93 /** | |
| 94 * marginLeft specifies the number of pixels of horizontal margin | |
| 95 * that will be placed along the left edge of the layout. | |
| 96 * | |
| 97 * The default value is 0. | |
| 98 * | |
| 99 * @since 3.1 | |
| 100 */ | |
| 101 public int marginLeft = 0; | |
| 102 | |
| 103 /** | |
| 104 * marginTop specifies the number of pixels of vertical margin | |
| 105 * that will be placed along the top edge of the layout. | |
| 106 * | |
| 107 * The default value is 0. | |
| 108 * | |
| 109 * @since 3.1 | |
| 110 */ | |
| 111 public int marginTop = 0; | |
| 112 | |
| 113 /** | |
| 114 * marginRight specifies the number of pixels of horizontal margin | |
| 115 * that will be placed along the right edge of the layout. | |
| 116 * | |
| 117 * The default value is 0. | |
| 118 * | |
| 119 * @since 3.1 | |
| 120 */ | |
| 121 public int marginRight = 0; | |
| 122 | |
| 123 /** | |
| 124 * marginBottom specifies the number of pixels of vertical margin | |
| 125 * that will be placed along the bottom edge of the layout. | |
| 126 * | |
| 127 * The default value is 0. | |
| 128 * | |
| 129 * @since 3.1 | |
| 130 */ | |
| 131 public int marginBottom = 0; | |
| 132 | |
| 133 /** | |
| 134 * horizontalSpacing specifies the number of pixels between the right | |
| 135 * edge of one cell and the left edge of its neighbouring cell to | |
| 136 * the right. | |
| 137 * | |
| 138 * The default value is 5. | |
| 139 */ | |
| 140 public int horizontalSpacing = 5; | |
| 141 | |
| 142 /** | |
| 143 * verticalSpacing specifies the number of pixels between the bottom | |
| 144 * edge of one cell and the top edge of its neighbouring cell underneath. | |
| 145 * | |
| 146 * The default value is 5. | |
| 147 */ | |
| 148 public int verticalSpacing = 5; | |
| 149 | |
| 150 /** | |
| 151 * Constructs a new instance of this class. | |
| 152 */ | |
| 153 public this () {} | |
| 154 | |
| 155 /** | |
| 156 * Constructs a new instance of this class given the | |
| 157 * number of columns, and whether or not the columns | |
| 158 * should be forced to have the same width. | |
| 159 * If numColumns has a value less than 1, the layout will not | |
| 160 * set the size and position of any controls. | |
| 161 * | |
| 162 * @param numColumns the number of columns in the grid | |
| 163 * @param makeColumnsEqualWidth whether or not the columns will have equal width | |
| 164 * | |
| 165 * @since 2.0 | |
| 166 */ | |
| 167 public this (int numColumns, bool makeColumnsEqualWidth) { | |
| 168 this.numColumns = numColumns; | |
| 169 this.makeColumnsEqualWidth = makeColumnsEqualWidth; | |
| 170 } | |
| 171 | |
|
48
9a64a7781bab
Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
0
diff
changeset
|
172 override protected Point computeSize (Composite composite, int wHint, int hHint, bool flushCache_) { |
| 0 | 173 Point size = layout (composite, false, 0, 0, wHint, hHint, flushCache_); |
| 174 if (wHint !is DWT.DEFAULT) size.x = wHint; | |
| 175 if (hHint !is DWT.DEFAULT) size.y = hHint; | |
| 176 return size; | |
| 177 } | |
| 178 | |
|
48
9a64a7781bab
Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
0
diff
changeset
|
179 override protected bool flushCache (Control control) { |
| 0 | 180 Object data = control.getLayoutData (); |
| 181 if (data !is null) (cast(GridData) data).flushCache (); | |
| 182 return true; | |
| 183 } | |
| 184 | |
| 185 GridData getData (Control [][] grid, int row, int column, int rowCount, int columnCount, bool first) { | |
| 186 Control control = grid [row] [column]; | |
| 187 if (control !is null) { | |
| 188 GridData data = cast(GridData) control.getLayoutData (); | |
| 189 int hSpan = Math.max (1, Math.min (data.horizontalSpan, columnCount)); | |
| 190 int vSpan = Math.max (1, data.verticalSpan); | |
| 191 int i = first ? row + vSpan - 1 : row - vSpan + 1; | |
| 192 int j = first ? column + hSpan - 1 : column - hSpan + 1; | |
| 193 if (0 <= i && i < rowCount) { | |
| 194 if (0 <= j && j < columnCount) { | |
| 195 if (control is grid [i][j]) return data; | |
| 196 } | |
| 197 } | |
| 198 } | |
| 199 return null; | |
| 200 } | |
| 201 | |
|
48
9a64a7781bab
Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
0
diff
changeset
|
202 override protected void layout (Composite composite, bool flushCache_) { |
| 0 | 203 Rectangle rect = composite.getClientArea (); |
| 204 layout (composite, true, rect.x, rect.y, rect.width, rect.height, flushCache_); | |
| 205 } | |
| 206 | |
| 207 Point layout (Composite composite, bool move, int x, int y, int width, int height, bool flushCache_) { | |
| 208 if (numColumns < 1) { | |
| 209 return new Point (marginLeft + marginWidth * 2 + marginRight, marginTop + marginHeight * 2 + marginBottom); | |
| 210 } | |
| 211 Control [] children = composite.getChildren (); | |
| 212 int count = 0; | |
| 213 for (int i=0; i<children.length; i++) { | |
| 214 Control control = children [i]; | |
| 215 GridData data = cast(GridData) control.getLayoutData (); | |
| 216 if (data is null || !data.exclude) { | |
| 217 children [count++] = children [i]; | |
| 218 } | |
| 219 } | |
| 220 if (count is 0) { | |
| 221 return new Point (marginLeft + marginWidth * 2 + marginRight, marginTop + marginHeight * 2 + marginBottom); | |
| 222 } | |
| 223 for (int i=0; i<count; i++) { | |
| 224 Control child = children [i]; | |
| 225 GridData data = cast(GridData) child.getLayoutData (); | |
| 226 if (data is null) child.setLayoutData (data = new GridData ()); | |
| 227 if (flushCache_) data.flushCache (); | |
| 228 data.computeSize (child, data.widthHint, data.heightHint, flushCache_); | |
| 229 if (data.grabExcessHorizontalSpace && data.minimumWidth > 0) { | |
| 230 if (data.cacheWidth < data.minimumWidth) { | |
| 231 int trim = 0; | |
| 232 //TEMPORARY CODE | |
| 233 if ( auto sa = cast(Scrollable)child ) { | |
| 234 Rectangle rect = sa.computeTrim (0, 0, 0, 0); | |
| 235 trim = rect.width; | |
| 236 } else { | |
| 237 trim = child.getBorderWidth () * 2; | |
| 238 } | |
| 239 data.cacheWidth = data.cacheHeight = DWT.DEFAULT; | |
| 240 data.computeSize (child, Math.max (0, data.minimumWidth - trim), data.heightHint, false); | |
| 241 } | |
| 242 } | |
| 243 if (data.grabExcessVerticalSpace && data.minimumHeight > 0) { | |
| 244 data.cacheHeight = Math.max (data.cacheHeight, data.minimumHeight); | |
| 245 } | |
| 246 } | |
| 247 | |
| 248 /* Build the grid */ | |
| 249 int row = 0, column = 0, rowCount = 0, columnCount = numColumns; | |
| 250 Control [][] grid = new Control [][]( 4, columnCount ); | |
| 251 for (int i=0; i<count; i++) { | |
| 252 Control child = children [i]; | |
| 253 GridData data = cast(GridData) child.getLayoutData (); | |
| 254 int hSpan = Math.max (1, Math.min (data.horizontalSpan, columnCount)); | |
| 255 int vSpan = Math.max (1, data.verticalSpan); | |
| 256 while (true) { | |
| 257 int lastRow = row + vSpan; | |
| 258 if (lastRow >= grid.length) { | |
| 259 Control [][] newGrid = new Control[][]( lastRow + 4, columnCount ); | |
| 260 SimpleType!(Control[]).arraycopy (grid, 0, newGrid, 0, grid.length); | |
| 261 grid = newGrid; | |
| 262 } | |
| 263 if (grid [row] is null) { | |
| 264 grid [row] = new Control [columnCount]; | |
| 265 } | |
| 266 while (column < columnCount && grid [row] [column] !is null) { | |
| 267 column++; | |
| 268 } | |
| 269 int endCount = column + hSpan; | |
| 270 if (endCount <= columnCount) { | |
| 271 int index = column; | |
| 272 while (index < endCount && grid [row] [index] is null) { | |
| 273 index++; | |
| 274 } | |
| 275 if (index is endCount) break; | |
| 276 column = index; | |
| 277 } | |
| 278 if (column + hSpan >= columnCount) { | |
| 279 column = 0; | |
| 280 row++; | |
| 281 } | |
| 282 } | |
| 283 for (int j=0; j<vSpan; j++) { | |
| 284 if (grid [row + j] is null) { | |
| 285 grid [row + j] = new Control [columnCount]; | |
| 286 } | |
| 287 for (int k=0; k<hSpan; k++) { | |
| 288 grid [row + j] [column + k] = child; | |
| 289 } | |
| 290 } | |
| 291 rowCount = Math.max (rowCount, row + vSpan); | |
| 292 column += hSpan; | |
| 293 } | |
| 294 | |
| 295 /* Column widths */ | |
| 296 int availableWidth = width - horizontalSpacing * (columnCount - 1) - (marginLeft + marginWidth * 2 + marginRight); | |
| 297 int expandCount = 0; | |
| 298 int [] widths = new int [columnCount]; | |
| 299 int [] minWidths = new int [columnCount]; | |
| 300 bool [] expandColumn = new bool [columnCount]; | |
| 301 for (int j=0; j<columnCount; j++) { | |
| 302 for (int i=0; i<rowCount; i++) { | |
| 303 GridData data = getData (grid, i, j, rowCount, columnCount, true); | |
| 304 if (data !is null) { | |
| 305 int hSpan = Math.max (1, Math.min (data.horizontalSpan, columnCount)); | |
| 306 if (hSpan is 1) { | |
| 307 int w = data.cacheWidth + data.horizontalIndent; | |
| 308 widths [j] = Math.max (widths [j], w); | |
| 309 if (data.grabExcessHorizontalSpace) { | |
| 310 if (!expandColumn [j]) expandCount++; | |
| 311 expandColumn [j] = true; | |
| 312 } | |
| 313 if (!data.grabExcessHorizontalSpace || data.minimumWidth !is 0) { | |
| 314 w = !data.grabExcessHorizontalSpace || data.minimumWidth is DWT.DEFAULT ? data.cacheWidth : data.minimumWidth; | |
| 315 w += data.horizontalIndent; | |
| 316 minWidths [j] = Math.max (minWidths [j], w); | |
| 317 } | |
| 318 } | |
| 319 } | |
| 320 } | |
| 321 for (int i=0; i<rowCount; i++) { | |
| 322 GridData data = getData (grid, i, j, rowCount, columnCount, false); | |
| 323 if (data !is null) { | |
| 324 int hSpan = Math.max (1, Math.min (data.horizontalSpan, columnCount)); | |
| 325 if (hSpan > 1) { | |
| 326 int spanWidth = 0, spanMinWidth = 0, spanExpandCount = 0; | |
| 327 for (int k=0; k<hSpan; k++) { | |
| 328 spanWidth += widths [j-k]; | |
| 329 spanMinWidth += minWidths [j-k]; | |
| 330 if (expandColumn [j-k]) spanExpandCount++; | |
| 331 } | |
| 332 if (data.grabExcessHorizontalSpace && spanExpandCount is 0) { | |
| 333 expandCount++; | |
| 334 expandColumn [j] = true; | |
| 335 } | |
| 336 int w = data.cacheWidth + data.horizontalIndent - spanWidth - (hSpan - 1) * horizontalSpacing; | |
| 337 if (w > 0) { | |
| 338 if (makeColumnsEqualWidth) { | |
| 339 int equalWidth = (w + spanWidth) / hSpan; | |
| 340 int remainder = (w + spanWidth) % hSpan, last = -1; | |
| 341 for (int k = 0; k < hSpan; k++) { | |
| 342 widths [last=j-k] = Math.max (equalWidth, widths [j-k]); | |
| 343 } | |
| 344 if (last > -1) widths [last] += remainder; | |
| 345 } else { | |
| 346 if (spanExpandCount is 0) { | |
| 347 widths [j] += w; | |
| 348 } else { | |
| 349 int delta = w / spanExpandCount; | |
| 350 int remainder = w % spanExpandCount, last = -1; | |
| 351 for (int k = 0; k < hSpan; k++) { | |
| 352 if (expandColumn [j-k]) { | |
| 353 widths [last=j-k] += delta; | |
| 354 } | |
| 355 } | |
| 356 if (last > -1) widths [last] += remainder; | |
| 357 } | |
| 358 } | |
| 359 } | |
| 360 if (!data.grabExcessHorizontalSpace || data.minimumWidth !is 0) { | |
| 361 w = !data.grabExcessHorizontalSpace || data.minimumWidth is DWT.DEFAULT ? data.cacheWidth : data.minimumWidth; | |
| 362 w += data.horizontalIndent - spanMinWidth - (hSpan - 1) * horizontalSpacing; | |
| 363 if (w > 0) { | |
| 364 if (spanExpandCount is 0) { | |
| 365 minWidths [j] += w; | |
| 366 } else { | |
| 367 int delta = w / spanExpandCount; | |
| 368 int remainder = w % spanExpandCount, last = -1; | |
| 369 for (int k = 0; k < hSpan; k++) { | |
| 370 if (expandColumn [j-k]) { | |
| 371 minWidths [last=j-k] += delta; | |
| 372 } | |
| 373 } | |
| 374 if (last > -1) minWidths [last] += remainder; | |
| 375 } | |
| 376 } | |
| 377 } | |
| 378 } | |
| 379 } | |
| 380 } | |
| 381 } | |
| 382 if (makeColumnsEqualWidth) { | |
| 383 int minColumnWidth = 0; | |
| 384 int columnWidth = 0; | |
| 385 for (int i=0; i<columnCount; i++) { | |
| 386 minColumnWidth = Math.max (minColumnWidth, minWidths [i]); | |
| 387 columnWidth = Math.max (columnWidth, widths [i]); | |
| 388 } | |
| 389 columnWidth = width is DWT.DEFAULT || expandCount is 0 ? columnWidth : Math.max (minColumnWidth, availableWidth / columnCount); | |
| 390 for (int i=0; i<columnCount; i++) { | |
| 391 expandColumn [i] = expandCount > 0; | |
| 392 widths [i] = columnWidth; | |
| 393 } | |
| 394 } else { | |
| 395 if (width !is DWT.DEFAULT && expandCount > 0) { | |
| 396 int totalWidth = 0; | |
| 397 for (int i=0; i<columnCount; i++) { | |
| 398 totalWidth += widths [i]; | |
| 399 } | |
| 400 int c = expandCount; | |
| 401 int delta = (availableWidth - totalWidth) / c; | |
| 402 int remainder = (availableWidth - totalWidth) % c; | |
| 403 int last = -1; | |
| 404 while (totalWidth !is availableWidth) { | |
| 405 for (int j=0; j<columnCount; j++) { | |
| 406 if (expandColumn [j]) { | |
| 407 if (widths [j] + delta > minWidths [j]) { | |
| 408 widths [last = j] = widths [j] + delta; | |
| 409 } else { | |
| 410 widths [j] = minWidths [j]; | |
| 411 expandColumn [j] = false; | |
| 412 c--; | |
| 413 } | |
| 414 } | |
| 415 } | |
| 416 if (last > -1) widths [last] += remainder; | |
| 417 | |
| 418 for (int j=0; j<columnCount; j++) { | |
| 419 for (int i=0; i<rowCount; i++) { | |
| 420 GridData data = getData (grid, i, j, rowCount, columnCount, false); | |
| 421 if (data !is null) { | |
| 422 int hSpan = Math.max (1, Math.min (data.horizontalSpan, columnCount)); | |
| 423 if (hSpan > 1) { | |
| 424 if (!data.grabExcessHorizontalSpace || data.minimumWidth !is 0) { | |
| 425 int spanWidth = 0, spanExpandCount = 0; | |
| 426 for (int k=0; k<hSpan; k++) { | |
| 427 spanWidth += widths [j-k]; | |
| 428 if (expandColumn [j-k]) spanExpandCount++; | |
| 429 } | |
| 430 int w = !data.grabExcessHorizontalSpace || data.minimumWidth is DWT.DEFAULT ? data.cacheWidth : data.minimumWidth; | |
| 431 w += data.horizontalIndent - spanWidth - (hSpan - 1) * horizontalSpacing; | |
| 432 if (w > 0) { | |
| 433 if (spanExpandCount is 0) { | |
| 434 widths [j] += w; | |
| 435 } else { | |
| 436 int delta2 = w / spanExpandCount; | |
| 437 int remainder2 = w % spanExpandCount, last2 = -1; | |
| 438 for (int k = 0; k < hSpan; k++) { | |
| 439 if (expandColumn [j-k]) { | |
| 440 widths [last2=j-k] += delta2; | |
| 441 } | |
| 442 } | |
| 443 if (last2 > -1) widths [last2] += remainder2; | |
| 444 } | |
| 445 } | |
| 446 } | |
| 447 } | |
| 448 } | |
| 449 } | |
| 450 } | |
| 451 if (c is 0) break; | |
| 452 totalWidth = 0; | |
| 453 for (int i=0; i<columnCount; i++) { | |
| 454 totalWidth += widths [i]; | |
| 455 } | |
| 456 delta = (availableWidth - totalWidth) / c; | |
| 457 remainder = (availableWidth - totalWidth) % c; | |
| 458 last = -1; | |
| 459 } | |
| 460 } | |
| 461 } | |
| 462 | |
| 463 /* Wrapping */ | |
| 464 GridData [] flush = null; | |
| 465 int flushLength = 0; | |
| 466 if (width !is DWT.DEFAULT) { | |
| 467 for (int j=0; j<columnCount; j++) { | |
| 468 for (int i=0; i<rowCount; i++) { | |
| 469 GridData data = getData (grid, i, j, rowCount, columnCount, false); | |
| 470 if (data !is null) { | |
| 471 if (data.heightHint is DWT.DEFAULT) { | |
| 472 Control child = grid [i][j]; | |
| 473 //TEMPORARY CODE | |
| 474 int hSpan = Math.max (1, Math.min (data.horizontalSpan, columnCount)); | |
| 475 int currentWidth = 0; | |
| 476 for (int k=0; k<hSpan; k++) { | |
| 477 currentWidth += widths [j-k]; | |
| 478 } | |
| 479 currentWidth += (hSpan - 1) * horizontalSpacing - data.horizontalIndent; | |
| 480 if ((currentWidth !is data.cacheWidth && data.horizontalAlignment is DWT.FILL) || (data.cacheWidth > currentWidth)) { | |
| 481 int trim = 0; | |
| 482 if ( auto sa = cast(Scrollable)child ) { | |
| 483 Rectangle rect = sa.computeTrim (0, 0, 0, 0); | |
| 484 trim = rect.width; | |
| 485 } else { | |
| 486 trim = child.getBorderWidth () * 2; | |
| 487 } | |
| 488 data.cacheWidth = data.cacheHeight = DWT.DEFAULT; | |
| 489 data.computeSize (child, Math.max (0, currentWidth - trim), data.heightHint, false); | |
| 490 if (data.grabExcessVerticalSpace && data.minimumHeight > 0) { | |
| 491 data.cacheHeight = Math.max (data.cacheHeight, data.minimumHeight); | |
| 492 } | |
| 493 if (flush is null) flush = new GridData [count]; | |
| 494 flush [flushLength++] = data; | |
| 495 } | |
| 496 } | |
| 497 } | |
| 498 } | |
| 499 } | |
| 500 } | |
| 501 | |
| 502 /* Row heights */ | |
| 503 int availableHeight = height - verticalSpacing * (rowCount - 1) - (marginTop + marginHeight * 2 + marginBottom); | |
| 504 expandCount = 0; | |
| 505 int [] heights = new int [rowCount]; | |
| 506 int [] minHeights = new int [rowCount]; | |
| 507 bool [] expandRow = new bool [rowCount]; | |
| 508 for (int i=0; i<rowCount; i++) { | |
| 509 for (int j=0; j<columnCount; j++) { | |
| 510 GridData data = getData (grid, i, j, rowCount, columnCount, true); | |
| 511 if (data !is null) { | |
| 512 int vSpan = Math.max (1, Math.min (data.verticalSpan, rowCount)); | |
| 513 if (vSpan is 1) { | |
| 514 int h = data.cacheHeight + data.verticalIndent; | |
| 515 heights [i] = Math.max (heights [i], h); | |
| 516 if (data.grabExcessVerticalSpace) { | |
| 517 if (!expandRow [i]) expandCount++; | |
| 518 expandRow [i] = true; | |
| 519 } | |
| 520 if (!data.grabExcessVerticalSpace || data.minimumHeight !is 0) { | |
| 521 h = !data.grabExcessVerticalSpace || data.minimumHeight is DWT.DEFAULT ? data.cacheHeight : data.minimumHeight; | |
| 522 h += data.verticalIndent; | |
| 523 minHeights [i] = Math.max (minHeights [i], h); | |
| 524 } | |
| 525 } | |
| 526 } | |
| 527 } | |
| 528 for (int j=0; j<columnCount; j++) { | |
| 529 GridData data = getData (grid, i, j, rowCount, columnCount, false); | |
| 530 if (data !is null) { | |
| 531 int vSpan = Math.max (1, Math.min (data.verticalSpan, rowCount)); | |
| 532 if (vSpan > 1) { | |
| 533 int spanHeight = 0, spanMinHeight = 0, spanExpandCount = 0; | |
| 534 for (int k=0; k<vSpan; k++) { | |
| 535 spanHeight += heights [i-k]; | |
| 536 spanMinHeight += minHeights [i-k]; | |
| 537 if (expandRow [i-k]) spanExpandCount++; | |
| 538 } | |
| 539 if (data.grabExcessVerticalSpace && spanExpandCount is 0) { | |
| 540 expandCount++; | |
| 541 expandRow [i] = true; | |
| 542 } | |
| 543 int h = data.cacheHeight + data.verticalIndent - spanHeight - (vSpan - 1) * verticalSpacing; | |
| 544 if (h > 0) { | |
| 545 if (spanExpandCount is 0) { | |
| 546 heights [i] += h; | |
| 547 } else { | |
| 548 int delta = h / spanExpandCount; | |
| 549 int remainder = h % spanExpandCount, last = -1; | |
| 550 for (int k = 0; k < vSpan; k++) { | |
| 551 if (expandRow [i-k]) { | |
| 552 heights [last=i-k] += delta; | |
| 553 } | |
| 554 } | |
| 555 if (last > -1) heights [last] += remainder; | |
| 556 } | |
| 557 } | |
| 558 if (!data.grabExcessVerticalSpace || data.minimumHeight !is 0) { | |
| 559 h = !data.grabExcessVerticalSpace || data.minimumHeight is DWT.DEFAULT ? data.cacheHeight : data.minimumHeight; | |
| 560 h += data.verticalIndent - spanMinHeight - (vSpan - 1) * verticalSpacing; | |
| 561 if (h > 0) { | |
| 562 if (spanExpandCount is 0) { | |
| 563 minHeights [i] += h; | |
| 564 } else { | |
| 565 int delta = h / spanExpandCount; | |
| 566 int remainder = h % spanExpandCount, last = -1; | |
| 567 for (int k = 0; k < vSpan; k++) { | |
| 568 if (expandRow [i-k]) { | |
| 569 minHeights [last=i-k] += delta; | |
| 570 } | |
| 571 } | |
| 572 if (last > -1) minHeights [last] += remainder; | |
| 573 } | |
| 574 } | |
| 575 } | |
| 576 } | |
| 577 } | |
| 578 } | |
| 579 } | |
| 580 if (height !is DWT.DEFAULT && expandCount > 0) { | |
| 581 int totalHeight = 0; | |
| 582 for (int i=0; i<rowCount; i++) { | |
| 583 totalHeight += heights [i]; | |
| 584 } | |
| 585 int c = expandCount; | |
| 586 int delta = (availableHeight - totalHeight) / c; | |
| 587 int remainder = (availableHeight - totalHeight) % c; | |
| 588 int last = -1; | |
| 589 while (totalHeight !is availableHeight) { | |
| 590 for (int i=0; i<rowCount; i++) { | |
| 591 if (expandRow [i]) { | |
| 592 if (heights [i] + delta > minHeights [i]) { | |
| 593 heights [last = i] = heights [i] + delta; | |
| 594 } else { | |
| 595 heights [i] = minHeights [i]; | |
| 596 expandRow [i] = false; | |
| 597 c--; | |
| 598 } | |
| 599 } | |
| 600 } | |
| 601 if (last > -1) heights [last] += remainder; | |
| 602 | |
| 603 for (int i=0; i<rowCount; i++) { | |
| 604 for (int j=0; j<columnCount; j++) { | |
| 605 GridData data = getData (grid, i, j, rowCount, columnCount, false); | |
| 606 if (data !is null) { | |
| 607 int vSpan = Math.max (1, Math.min (data.verticalSpan, rowCount)); | |
| 608 if (vSpan > 1) { | |
| 609 if (!data.grabExcessVerticalSpace || data.minimumHeight !is 0) { | |
| 610 int spanHeight = 0, spanExpandCount = 0; | |
| 611 for (int k=0; k<vSpan; k++) { | |
| 612 spanHeight += heights [i-k]; | |
| 613 if (expandRow [i-k]) spanExpandCount++; | |
| 614 } | |
| 615 int h = !data.grabExcessVerticalSpace || data.minimumHeight is DWT.DEFAULT ? data.cacheHeight : data.minimumHeight; | |
| 616 h += data.verticalIndent - spanHeight - (vSpan - 1) * verticalSpacing; | |
| 617 if (h > 0) { | |
| 618 if (spanExpandCount is 0) { | |
| 619 heights [i] += h; | |
| 620 } else { | |
| 621 int delta2 = h / spanExpandCount; | |
| 622 int remainder2 = h % spanExpandCount, last2 = -1; | |
| 623 for (int k = 0; k < vSpan; k++) { | |
| 624 if (expandRow [i-k]) { | |
| 625 heights [last2=i-k] += delta2; | |
| 626 } | |
| 627 } | |
| 628 if (last2 > -1) heights [last2] += remainder2; | |
| 629 } | |
| 630 } | |
| 631 } | |
| 632 } | |
| 633 } | |
| 634 } | |
| 635 } | |
| 636 if (c is 0) break; | |
| 637 totalHeight = 0; | |
| 638 for (int i=0; i<rowCount; i++) { | |
| 639 totalHeight += heights [i]; | |
| 640 } | |
| 641 delta = (availableHeight - totalHeight) / c; | |
| 642 remainder = (availableHeight - totalHeight) % c; | |
| 643 last = -1; | |
| 644 } | |
| 645 } | |
| 646 | |
| 647 /* Position the controls */ | |
| 648 if (move) { | |
| 649 int gridY = y + marginTop + marginHeight; | |
| 650 for (int i=0; i<rowCount; i++) { | |
| 651 int gridX = x + marginLeft + marginWidth; | |
| 652 for (int j=0; j<columnCount; j++) { | |
| 653 GridData data = getData (grid, i, j, rowCount, columnCount, true); | |
| 654 if (data !is null) { | |
| 655 int hSpan = Math.max (1, Math.min (data.horizontalSpan, columnCount)); | |
| 656 int vSpan = Math.max (1, data.verticalSpan); | |
| 657 int cellWidth = 0, cellHeight = 0; | |
| 658 for (int k=0; k<hSpan; k++) { | |
| 659 cellWidth += widths [j+k]; | |
| 660 } | |
| 661 for (int k=0; k<vSpan; k++) { | |
| 662 cellHeight += heights [i+k]; | |
| 663 } | |
| 664 cellWidth += horizontalSpacing * (hSpan - 1); | |
| 665 int childX = gridX + data.horizontalIndent; | |
| 666 int childWidth = Math.min (data.cacheWidth, cellWidth); | |
| 667 switch (data.horizontalAlignment) { | |
| 668 case DWT.CENTER: | |
| 669 case GridData.CENTER: | |
| 670 childX += Math.max (0, (cellWidth - data.horizontalIndent - childWidth) / 2); | |
| 671 break; | |
| 672 case DWT.RIGHT: | |
| 673 case DWT.END: | |
| 674 case GridData.END: | |
| 675 childX += Math.max (0, cellWidth - data.horizontalIndent - childWidth); | |
| 676 break; | |
| 677 case DWT.FILL: | |
| 678 childWidth = cellWidth - data.horizontalIndent; | |
| 679 break; | |
| 680 default: | |
| 681 } | |
| 682 cellHeight += verticalSpacing * (vSpan - 1); | |
| 683 int childY = gridY + data.verticalIndent; | |
| 684 int childHeight = Math.min (data.cacheHeight, cellHeight); | |
| 685 switch (data.verticalAlignment) { | |
| 686 case DWT.CENTER: | |
| 687 case GridData.CENTER: | |
| 688 childY += Math.max (0, (cellHeight - data.verticalIndent - childHeight) / 2); | |
| 689 break; | |
| 690 case DWT.BOTTOM: | |
| 691 case DWT.END: | |
| 692 case GridData.END: | |
| 693 childY += Math.max (0, cellHeight - data.verticalIndent - childHeight); | |
| 694 break; | |
| 695 case DWT.FILL: | |
| 696 childHeight = cellHeight - data.verticalIndent; | |
| 697 break; | |
| 698 default: | |
| 699 } | |
| 700 Control child = grid [i][j]; | |
| 701 if (child !is null) { | |
| 702 child.setBounds (childX, childY, childWidth, childHeight); | |
| 703 } | |
| 704 } | |
| 705 gridX += widths [j] + horizontalSpacing; | |
| 706 } | |
| 707 gridY += heights [i] + verticalSpacing; | |
| 708 } | |
| 709 } | |
| 710 | |
| 711 // clean up cache | |
| 712 for (int i = 0; i < flushLength; i++) { | |
| 713 flush [i].cacheWidth = flush [i].cacheHeight = -1; | |
| 714 } | |
| 715 | |
| 716 int totalDefaultWidth = 0; | |
| 717 int totalDefaultHeight = 0; | |
| 718 for (int i=0; i<columnCount; i++) { | |
| 719 totalDefaultWidth += widths [i]; | |
| 720 } | |
| 721 for (int i=0; i<rowCount; i++) { | |
| 722 totalDefaultHeight += heights [i]; | |
| 723 } | |
| 724 totalDefaultWidth += horizontalSpacing * (columnCount - 1) + marginLeft + marginWidth * 2 + marginRight; | |
| 725 totalDefaultHeight += verticalSpacing * (rowCount - 1) + marginTop + marginHeight * 2 + marginBottom; | |
| 726 return new Point (totalDefaultWidth, totalDefaultHeight); | |
| 727 } | |
| 728 | |
| 729 char[] getName () { | |
| 730 char[] string = this.classinfo.name; | |
| 731 int index = locatePrior( string, '.'); | |
| 732 if (index is string.length ) return string; | |
| 733 return string[ index + 1 .. string.length ]; | |
| 734 } | |
| 735 | |
| 736 /** | |
| 737 * Returns a string containing a concise, human-readable | |
| 738 * description of the receiver. | |
| 739 * | |
| 740 * @return a string representation of the layout | |
| 741 */ | |
|
48
9a64a7781bab
Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
0
diff
changeset
|
742 override public char[] toString () { |
| 0 | 743 char[] string = getName ()~" {"; |
| 744 if (numColumns !is 1) string ~= "numColumns="~to!(char[])(numColumns)~" "; | |
| 745 if (makeColumnsEqualWidth) string ~= "makeColumnsEqualWidth="~to!(char[])(makeColumnsEqualWidth)~" "; | |
| 746 if (marginWidth !is 0) string ~= "marginWidth="~to!(char[])(marginWidth)~" "; | |
| 747 if (marginHeight !is 0) string ~= "marginHeight="~to!(char[])(marginHeight)~" "; | |
| 748 if (marginLeft !is 0) string ~= "marginLeft="~to!(char[])(marginLeft)~" "; | |
| 749 if (marginRight !is 0) string ~= "marginRight="~to!(char[])(marginRight)~" "; | |
| 750 if (marginTop !is 0) string ~= "marginTop="~to!(char[])(marginTop)~" "; | |
| 751 if (marginBottom !is 0) string ~= "marginBottom="~to!(char[])(marginBottom)~" "; | |
| 752 if (horizontalSpacing !is 0) string ~= "horizontalSpacing="~to!(char[])(horizontalSpacing)~" "; | |
| 753 if (verticalSpacing !is 0) string ~= "verticalSpacing="~to!(char[])(verticalSpacing)~" "; | |
| 754 string = string.trim(); | |
| 755 string ~= "}"; | |
| 756 return string; | |
| 757 } | |
| 758 } |