Mercurial > projects > dwt-addons
annotate dwtx/jface/viewers/ViewerRow.d @ 90:7ffeace6c47f
Update 3.4M7 to 3.4
| author | Frank Benoit <benoit@tionex.de> |
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| date | Sun, 06 Jul 2008 23:30:07 +0200 |
| parents | 5df4896124c7 |
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| rev | line source |
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| 10 | 1 /******************************************************************************* |
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2 * Copyright (c) 2006, 2008 IBM Corporation and others. |
| 10 | 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 | |
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10 * Tom Schindl <tom.schindl@bestsolution.at> - initial API and implementation |
| 90 | 11 * - fix in bug: 166346,167325,174355,195908,198035,215069,227421 |
| 10 | 12 * Port to the D programming language: |
| 13 * Frank Benoit <benoit@tionex.de> | |
| 14 *******************************************************************************/ | |
| 15 | |
| 16 module dwtx.jface.viewers.ViewerRow; | |
| 17 | |
| 18 import dwtx.jface.viewers.ViewerCell; | |
| 19 import dwtx.jface.viewers.ViewerRow; | |
| 20 import dwtx.jface.viewers.TreePath; | |
| 21 | |
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22 import dwt.custom.StyleRange; |
| 10 | 23 import dwt.graphics.Color; |
| 24 import dwt.graphics.Font; | |
| 25 import dwt.graphics.Image; | |
| 26 import dwt.graphics.Point; | |
| 27 import dwt.graphics.Rectangle; | |
| 28 import dwt.widgets.Control; | |
| 29 import dwt.widgets.Widget; | |
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30 import dwtx.jface.util.Policy; |
| 10 | 31 |
| 32 import dwt.dwthelper.utils; | |
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33 import tango.util.Convert; |
| 10 | 34 |
| 35 /** | |
| 36 * ViewerRow is the abstract superclass of the part that represents items in a | |
| 37 * Table or Tree. Implementors of {@link ColumnViewer} have to provide a | |
| 38 * concrete implementation for the underlying widget | |
| 39 * | |
| 40 * @since 3.3 | |
| 41 * | |
| 42 */ | |
| 43 public abstract class ViewerRow : Cloneable { | |
| 44 | |
| 45 /** | |
| 46 * Constant denoting the row above the current one (value is 1). | |
| 47 * | |
| 48 * @see #getNeighbor(int, bool) | |
| 49 */ | |
| 50 public static const int ABOVE = 1; | |
| 51 | |
| 52 /** | |
| 53 * Constant denoting the row below the current one (value is 2). | |
| 54 * | |
| 55 * @see #getNeighbor(int, bool) | |
| 56 */ | |
| 57 public static const int BELOW = 2; | |
| 71 | 58 |
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59 private static const String KEY_TEXT_LAYOUT = Policy.JFACE ~ "styled_label_key_"; //$NON-NLS-1$ |
| 10 | 60 |
| 61 /** | |
| 62 * Get the bounds of the entry at the columnIndex, | |
| 63 * | |
| 64 * @param columnIndex | |
| 65 * @return {@link Rectangle} | |
| 66 */ | |
| 67 public abstract Rectangle getBounds(int columnIndex); | |
| 68 | |
| 69 /** | |
| 70 * Return the bounds for the whole item. | |
| 71 * | |
| 72 * @return {@link Rectangle} | |
| 73 */ | |
| 74 public abstract Rectangle getBounds(); | |
| 75 | |
| 76 /** | |
| 77 * Return the item for the receiver. | |
| 78 * | |
| 79 * @return {@link Widget} | |
| 80 */ | |
| 81 public abstract Widget getItem(); | |
| 82 | |
| 83 /** | |
| 84 * Return the number of columns for the receiver. | |
| 85 * | |
| 86 * @return the number of columns | |
| 87 */ | |
| 88 public abstract int getColumnCount(); | |
| 89 | |
| 90 /** | |
| 91 * Return the image at the columnIndex. | |
| 92 * | |
| 93 * @param columnIndex | |
| 94 * @return {@link Image} or <code>null</code> | |
| 95 */ | |
| 96 public abstract Image getImage(int columnIndex); | |
| 97 | |
| 98 /** | |
| 99 * Set the image at the columnIndex | |
| 100 * | |
| 101 * @param columnIndex | |
| 102 * @param image | |
| 103 */ | |
| 104 public abstract void setImage(int columnIndex, Image image); | |
| 105 | |
| 106 /** | |
| 107 * Get the text at the columnIndex. | |
| 108 * | |
| 109 * @param columnIndex | |
| 110 * @return {@link String} | |
| 111 */ | |
| 112 public abstract String getText(int columnIndex); | |
| 113 | |
| 114 /** | |
| 115 * Set the text at the columnIndex | |
| 116 * | |
| 117 * @param columnIndex | |
| 118 * @param text | |
| 119 */ | |
| 120 public abstract void setText(int columnIndex, String text); | |
| 121 | |
| 122 /** | |
| 123 * Get the background at the columnIndex, | |
| 124 * | |
| 125 * @param columnIndex | |
| 126 * @return {@link Color} or <code>null</code> | |
| 127 */ | |
| 128 public abstract Color getBackground(int columnIndex); | |
| 129 | |
| 130 /** | |
| 131 * Set the background at the columnIndex. | |
| 132 * | |
| 133 * @param columnIndex | |
| 134 * @param color | |
| 135 */ | |
| 136 public abstract void setBackground(int columnIndex, Color color); | |
| 137 | |
| 138 /** | |
| 139 * Get the foreground at the columnIndex. | |
| 140 * | |
| 141 * @param columnIndex | |
| 142 * @return {@link Color} or <code>null</code> | |
| 143 */ | |
| 144 public abstract Color getForeground(int columnIndex); | |
| 145 | |
| 146 /** | |
| 147 * Set the foreground at the columnIndex. | |
| 148 * | |
| 149 * @param columnIndex | |
| 150 * @param color | |
| 151 */ | |
| 152 public abstract void setForeground(int columnIndex, Color color); | |
| 153 | |
| 154 /** | |
| 155 * Get the font at the columnIndex. | |
| 156 * | |
| 157 * @param columnIndex | |
| 158 * @return {@link Font} or <code>null</code> | |
| 159 */ | |
| 160 public abstract Font getFont(int columnIndex); | |
| 161 | |
| 162 /** | |
| 163 * Set the {@link Font} at the columnIndex. | |
| 164 * | |
| 165 * @param columnIndex | |
| 166 * @param font | |
| 167 */ | |
| 168 public abstract void setFont(int columnIndex, Font font); | |
| 169 | |
| 170 /** | |
| 171 * Get the ViewerCell at point. | |
| 172 * | |
| 173 * @param point | |
| 174 * @return {@link ViewerCell} | |
| 175 */ | |
| 176 public ViewerCell getCell(Point point) { | |
| 177 int index = getColumnIndex(point); | |
| 178 return getCell(index); | |
| 179 } | |
| 180 | |
| 181 /** | |
| 182 * Get the columnIndex of the point. | |
| 183 * | |
| 184 * @param point | |
| 185 * @return int or -1 if it cannot be found. | |
| 186 */ | |
| 187 public int getColumnIndex(Point point) { | |
| 188 int count = getColumnCount(); | |
| 189 | |
| 190 // If there are no columns the column-index is 0 | |
| 191 if (count is 0) { | |
| 192 return 0; | |
| 193 } | |
| 194 | |
| 195 for (int i = 0; i < count; i++) { | |
| 196 if (getBounds(i).contains(point)) { | |
| 197 return i; | |
| 198 } | |
| 199 } | |
| 200 | |
| 201 return -1; | |
| 202 } | |
| 203 | |
| 204 /** | |
| 205 * Get a ViewerCell for the column at index. | |
| 206 * | |
| 207 * @param column | |
| 208 * @return {@link ViewerCell} or <code>null</code> if the index is | |
| 209 * negative. | |
| 210 */ | |
| 211 public ViewerCell getCell(int column) { | |
| 212 if (column >= 0) | |
| 213 return new ViewerCell(cast(ViewerRow) clone(), column, getElement()); | |
| 214 | |
| 215 return null; | |
| 216 } | |
| 217 | |
| 218 /** | |
| 219 * Get the Control for the receiver. | |
| 220 * | |
| 221 * @return {@link Control} | |
| 222 */ | |
| 223 public abstract Control getControl(); | |
| 224 | |
| 225 /** | |
| 226 * Returns a neighboring row, or <code>null</code> if no neighbor exists | |
| 227 * in the given direction. If <code>sameLevel</code> is <code>true</code>, | |
| 228 * only sibling rows (under the same parent) will be considered. | |
| 229 * | |
| 230 * @param direction | |
| 231 * the direction {@link #BELOW} or {@link #ABOVE} | |
| 232 * | |
| 233 * @param sameLevel | |
| 234 * if <code>true</code>, search only within sibling rows | |
| 235 * @return the row above/below, or <code>null</code> if not found | |
| 236 */ | |
| 237 public abstract ViewerRow getNeighbor(int direction, bool sameLevel); | |
| 238 | |
| 239 /** | |
| 240 * The tree path used to identify an element by the unique path | |
| 241 * | |
| 242 * @return the path | |
| 243 */ | |
| 244 public abstract TreePath getTreePath(); | |
| 245 | |
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246 public /+override+/ abstract Object clone(); |
| 10 | 247 |
| 248 /** | |
| 249 * @return the model element | |
| 250 */ | |
| 251 public abstract Object getElement(); | |
| 252 | |
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253 public override hash_t toHash() { |
| 10 | 254 final int prime = 31; |
| 255 int result = 1; | |
| 256 result = prime * result | |
| 257 + ((getItem() is null) ? 0 : getItem().toHash()); | |
| 258 return result; | |
| 259 } | |
| 260 | |
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261 public override int opEquals(Object obj) { |
| 10 | 262 if (this is obj) |
| 263 return true; | |
| 264 if (obj is null) | |
| 265 return false; | |
| 266 if (this.classinfo !is obj.classinfo) | |
| 267 return false; | |
| 268 ViewerRow other = cast(ViewerRow) obj; | |
| 269 if (getItem() is null) { | |
| 270 if (other.getItem() !is null) | |
| 271 return false; | |
| 272 } else if (!getItem().opEquals(other.getItem())) | |
| 273 return false; | |
| 274 return true; | |
| 275 } | |
| 276 | |
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277 /** |
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278 * The cell at the current index (as shown in the UI). This can be different |
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279 * to the original index when columns are reordered. |
| 71 | 280 * |
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281 * @param visualIndex |
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282 * the current index (as shown in the UI) |
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283 * @return the cell at the currently visible index |
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284 */ |
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285 ViewerCell getCellAtVisualIndex(int visualIndex) { |
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286 return getCell(getCreationIndex(visualIndex)); |
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287 } |
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288 |
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289 /** |
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290 * Translate the original column index to the actual one. |
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291 * <p> |
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292 * <b>Because of backwards API compatibility the default implementation |
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293 * returns the original index. Implementators of {@link ColumnViewer} should |
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294 * overwrite this method if their widget supports reordered columns</b> |
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295 * </p> |
| 71 | 296 * |
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297 * @param creationIndex |
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298 * the original index |
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299 * @return the current index (as shown in the UI) |
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300 * @since 3.4 |
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301 */ |
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302 protected int getVisualIndex(int creationIndex) { |
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303 return creationIndex; |
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304 } |
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305 package int getVisualIndex_package(int creationIndex) { |
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306 return getVisualIndex(creationIndex); |
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307 } |
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308 |
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309 /** |
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310 * Translate the current column index (as shown in the UI) to the original |
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311 * one. |
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312 * <p> |
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313 * <b>Because of backwards API compatibility the default implementation |
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314 * returns the original index. Implementators of {@link ColumnViewer} should |
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315 * overwrite this method if their widget supports reordered columns</b> |
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316 * </p> |
| 71 | 317 * |
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318 * @param visualIndex |
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319 * the current index (as shown in the UI) |
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320 * @return the original index |
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321 * @since 3.4 |
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322 */ |
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323 protected int getCreationIndex(int visualIndex) { |
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324 return visualIndex; |
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325 } |
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326 package int getCreationIndex_package(int visualIndex) { |
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327 return getCreationIndex(visualIndex); |
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328 } |
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329 |
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330 /** |
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331 * The location and bounds of the area where the text is drawn depends on |
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332 * various things (image displayed, control with DWT.CHECK) |
| 71 | 333 * |
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334 * @param index |
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335 * the column index |
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336 * @return the bounds of the of the text area. May return <code>null</code> |
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337 * if the underlying widget implementation doesn't provide this |
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338 * information |
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339 * @since 3.4 |
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340 */ |
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341 public Rectangle getTextBounds(int index) { |
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342 return null; |
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343 } |
| 71 | 344 |
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345 |
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346 /** |
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347 * Returns the location and bounds of the area where the image is drawn. |
| 71 | 348 * |
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349 * @param index |
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350 * the column index |
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351 * @return the bounds of the of the image area. May return <code>null</code> |
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352 * if the underlying widget implementation doesn't provide this |
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353 * information |
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354 * @since 3.4 |
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355 */ |
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356 public Rectangle getImageBounds(int index) { |
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357 return null; |
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358 } |
| 71 | 359 |
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360 /** |
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361 * Set the style ranges to be applied on the text label at the column index |
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362 * Note: Requires {@link StyledCellLabelProvider} with owner draw enabled. |
| 71 | 363 * |
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364 * @param columnIndex the index of the column |
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365 * @param styleRanges the styled ranges |
| 71 | 366 * |
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367 * @since 3.4 |
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368 */ |
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369 public void setStyleRanges(int columnIndex, StyleRange[] styleRanges) { |
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370 getItem().setData(KEY_TEXT_LAYOUT ~ to!(String)(columnIndex), new ArrayWrapperT!(StyleRange)(styleRanges)); |
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371 } |
| 71 | 372 |
| 373 | |
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374 /** |
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375 * Returns the style ranges to be applied on the text label at the column index or <code>null</code> if no |
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376 * style ranges have been set. |
| 71 | 377 * |
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378 * @param columnIndex the index of the column |
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379 * @return styleRanges the styled ranges |
| 71 | 380 * |
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381 * @since 3.4 |
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382 */ |
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383 public StyleRange[] getStyleRanges(int columnIndex) { |
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384 return (cast(ArrayWrapperT!(StyleRange)) getItem().getData(KEY_TEXT_LAYOUT ~ to!(String)(columnIndex))).array; |
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385 } |
| 90 | 386 |
| 387 int getWidth(int columnIndex) { | |
| 388 return getBounds(columnIndex).width; | |
| 389 } | |
| 10 | 390 } |