Mercurial > projects > dwt-addons
annotate dwtx/jface/viewers/ViewerCell.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: 195908,198035,215069,215735,227421 |
| 10 | 12 * Port to the D programming language: |
| 13 * Frank Benoit <benoit@tionex.de> | |
| 14 *******************************************************************************/ | |
| 15 | |
| 16 module dwtx.jface.viewers.ViewerCell; | |
| 17 | |
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18 import dwt.custom.StyleRange; |
| 10 | 19 import dwtx.jface.viewers.ViewerRow; |
| 20 | |
| 21 import dwt.graphics.Color; | |
| 22 import dwt.graphics.Font; | |
| 23 import dwt.graphics.Image; | |
| 24 import dwt.graphics.Rectangle; | |
| 25 import dwt.widgets.Control; | |
| 26 import dwt.widgets.Item; | |
| 27 import dwt.widgets.Widget; | |
| 28 | |
| 29 import dwt.dwthelper.utils; | |
| 30 | |
| 31 /** | |
| 32 * The ViewerCell is the JFace representation of a cell entry in a ViewerRow. | |
| 33 * | |
| 34 * @since 3.3 | |
| 35 * | |
| 36 */ | |
| 37 public class ViewerCell { | |
| 38 private int columnIndex; | |
| 39 | |
| 40 private ViewerRow row; | |
| 41 | |
| 42 private Object element; | |
| 43 | |
| 44 /** | |
| 45 * Constant denoting the cell above current one (value is 1). | |
| 46 */ | |
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47 public static const int ABOVE = 1; |
| 10 | 48 |
| 49 /** | |
| 50 * Constant denoting the cell below current one (value is 2). | |
| 51 */ | |
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52 public static const int BELOW = 1 << 1; |
| 10 | 53 |
| 54 /** | |
| 55 * Constant denoting the cell to the left of the current one (value is 4). | |
| 56 */ | |
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57 public static const int LEFT = 1 << 2; |
| 10 | 58 |
| 59 /** | |
| 60 * Constant denoting the cell to the right of the current one (value is 8). | |
| 61 */ | |
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62 public static const int RIGHT = 1 << 3; |
| 10 | 63 |
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64 |
| 10 | 65 /** |
| 66 * Create a new instance of the receiver on the row. | |
| 67 * | |
| 68 * @param row | |
| 69 * @param columnIndex | |
| 70 */ | |
| 71 this(ViewerRow row, int columnIndex, Object element) { | |
| 72 this.row = row; | |
| 73 this.columnIndex = columnIndex; | |
| 74 this.element = element; | |
| 75 } | |
| 76 | |
| 77 /** | |
| 78 * Get the index of the cell. | |
| 79 * | |
| 80 * @return the index | |
| 81 */ | |
| 82 public int getColumnIndex() { | |
| 83 return columnIndex; | |
| 84 } | |
| 85 | |
| 86 /** | |
| 87 * Get the bounds of the cell. | |
| 88 * | |
| 89 * @return {@link Rectangle} | |
| 90 */ | |
| 91 public Rectangle getBounds() { | |
| 92 return row.getBounds(columnIndex); | |
| 93 } | |
| 94 | |
| 95 /** | |
| 96 * Get the element this row represents. | |
| 97 * | |
| 98 * @return {@link Object} | |
| 99 */ | |
| 100 public Object getElement() { | |
| 101 if (element !is null) { | |
| 102 return element; | |
| 103 } | |
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104 |
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105 if (row !is null) { |
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106 return row.getElement(); |
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107 } |
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108 |
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109 return null; |
| 10 | 110 } |
| 111 | |
| 112 /** | |
| 113 * Return the text for the cell. | |
| 114 * | |
| 115 * @return {@link String} | |
| 116 */ | |
| 117 public String getText() { | |
| 118 return row.getText(columnIndex); | |
| 119 } | |
| 120 | |
| 121 /** | |
| 122 * Return the Image for the cell. | |
| 123 * | |
| 124 * @return {@link Image} or <code>null</code> | |
| 125 */ | |
| 126 public Image getImage() { | |
| 127 return row.getImage(columnIndex); | |
| 128 } | |
| 129 | |
| 130 /** | |
| 131 * Set the background color of the cell. | |
| 132 * | |
| 133 * @param background | |
| 134 */ | |
| 135 public void setBackground(Color background) { | |
| 136 row.setBackground(columnIndex, background); | |
| 137 | |
| 138 } | |
| 139 | |
| 140 /** | |
| 141 * Set the foreground color of the cell. | |
| 142 * | |
| 143 * @param foreground | |
| 144 */ | |
| 145 public void setForeground(Color foreground) { | |
| 146 row.setForeground(columnIndex, foreground); | |
| 147 | |
| 148 } | |
| 149 | |
| 150 /** | |
| 151 * Set the font of the cell. | |
| 152 * | |
| 153 * @param font | |
| 154 */ | |
| 155 public void setFont(Font font) { | |
| 156 row.setFont(columnIndex, font); | |
| 157 | |
| 158 } | |
| 159 | |
| 160 /** | |
| 161 * Set the text for the cell. | |
| 162 * | |
| 163 * @param text | |
| 164 */ | |
| 165 public void setText(String text) { | |
| 166 row.setText(columnIndex, text); | |
| 167 | |
| 168 } | |
| 169 | |
| 170 /** | |
| 171 * Set the Image for the cell. | |
| 172 * | |
| 173 * @param image | |
| 174 */ | |
| 175 public void setImage(Image image) { | |
| 176 row.setImage(columnIndex, image); | |
| 177 | |
| 178 } | |
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179 |
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180 /** |
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181 * Set the style ranges to be applied on the text label |
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182 * Note: Requires {@link StyledCellLabelProvider} with owner draw enabled. |
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183 * |
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184 * @param styleRanges the styled ranges |
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185 * |
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186 * @since 3.4 |
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187 */ |
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188 public void setStyleRanges(StyleRange[] styleRanges) { |
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189 row.setStyleRanges(columnIndex, styleRanges); |
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190 } |
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191 |
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192 |
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193 /** |
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194 * Returns the style ranges to be applied on the text label or <code>null</code> if no |
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195 * style ranges have been set. |
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196 * |
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197 * @return styleRanges the styled ranges |
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198 * |
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199 * @since 3.4 |
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200 */ |
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201 public StyleRange[] getStyleRanges() { |
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202 return row.getStyleRanges(columnIndex); |
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203 } |
| 10 | 204 |
| 205 /** | |
| 206 * Set the columnIndex. | |
| 207 * | |
| 208 * @param column | |
| 209 */ | |
| 210 void setColumn(int column) { | |
| 211 columnIndex = column; | |
| 212 | |
| 213 } | |
| 214 | |
| 215 /** | |
| 216 * Set the row to rowItem and the columnIndex to column. | |
| 217 * | |
| 218 * @param rowItem | |
| 219 * @param column | |
| 220 */ | |
| 221 void update(ViewerRow rowItem, int column, Object element) { | |
| 222 row = rowItem; | |
| 223 columnIndex = column; | |
| 224 this.element = element; | |
| 225 } | |
| 226 | |
| 227 /** | |
| 228 * Return the item for the receiver. | |
| 229 * | |
| 230 * @return {@link Item} | |
| 231 */ | |
| 232 public Widget getItem() { | |
| 233 return row.getItem(); | |
| 234 } | |
| 235 | |
| 236 /** | |
| 237 * Get the control for this cell. | |
| 238 * | |
| 239 * @return {@link Control} | |
| 240 */ | |
| 241 public Control getControl() { | |
| 242 return row.getControl(); | |
| 243 } | |
| 244 | |
| 245 /** | |
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246 * Get the current index. This can be different from the original index when |
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247 * columns are reordered |
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248 * |
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249 * @return the current index (as shown in the UI) |
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250 * @since 3.4 |
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251 */ |
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252 public int getVisualIndex() { |
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253 return row.getVisualIndex_package(getColumnIndex()); |
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254 } |
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255 |
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256 /** |
| 10 | 257 * Returns the specified neighbor of this cell, or <code>null</code> if no |
| 258 * neighbor exists in the given direction. Direction constants can be | |
| 259 * combined by bitwise OR; for example, this method will return the cell to | |
| 260 * the upper-left of the current cell by passing {@link #ABOVE} | | |
| 261 * {@link #LEFT}. If <code>sameLevel</code> is <code>true</code>, only | |
| 262 * cells in sibling rows (under the same parent) will be considered. | |
| 263 * | |
| 264 * @param directionMask | |
| 265 * the direction mask used to identify the requested neighbor | |
| 266 * cell | |
| 267 * @param sameLevel | |
| 268 * if <code>true</code>, only consider cells from sibling rows | |
| 269 * @return the requested neighbor cell, or <code>null</code> if not found | |
| 270 */ | |
| 271 public ViewerCell getNeighbor(int directionMask, bool sameLevel) { | |
| 272 ViewerRow row; | |
| 273 | |
| 274 if ((directionMask & ABOVE) is ABOVE) { | |
| 275 row = this.row.getNeighbor(ViewerRow.ABOVE, sameLevel); | |
| 276 } else if ((directionMask & BELOW) is BELOW) { | |
| 277 row = this.row.getNeighbor(ViewerRow.BELOW, sameLevel); | |
| 278 } else { | |
| 279 row = this.row; | |
| 280 } | |
| 281 | |
| 282 if (row !is null) { | |
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283 int columnIndex; |
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284 columnIndex = getVisualIndex(); |
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285 |
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286 int modifier = 0; |
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287 |
| 10 | 288 if ((directionMask & LEFT) is LEFT) { |
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289 modifier = -1; |
| 10 | 290 } else if ((directionMask & RIGHT) is RIGHT) { |
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291 modifier = 1; |
| 10 | 292 } |
| 293 | |
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294 columnIndex += modifier; |
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295 |
| 10 | 296 if (columnIndex >= 0 && columnIndex < row.getColumnCount()) { |
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297 ViewerCell cell = row.getCellAtVisualIndex(columnIndex); |
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298 if( cell !is null ) { |
| 90 | 299 while( cell !is null && columnIndex < row.getColumnCount() - 1 && columnIndex > 0 ) { |
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300 if( cell.isVisible() ) { |
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301 break; |
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302 } |
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303 |
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304 columnIndex += modifier; |
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305 cell = row.getCellAtVisualIndex(columnIndex); |
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306 if( cell is null ) { |
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307 break; |
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308 } |
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309 } |
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310 } |
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311 |
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312 return cell; |
| 10 | 313 } |
| 314 } | |
| 315 | |
| 316 return null; | |
| 317 } | |
| 318 | |
| 319 /** | |
| 320 * @return the row | |
| 321 */ | |
| 322 public ViewerRow getViewerRow() { | |
| 323 return row; | |
| 324 } | |
| 325 | |
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326 /** |
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327 * The location and bounds of the area where the text is drawn depends on |
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328 * various things (image displayed, control with DWT.CHECK) |
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329 * |
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330 * @return The bounds of the of the text area. May return <code>null</code> |
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331 * if the underlying widget implementation doesn't provide this |
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332 * information |
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333 * @since 3.4 |
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334 */ |
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335 public Rectangle getTextBounds() { |
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336 return row.getTextBounds(columnIndex); |
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337 } |
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338 |
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339 /** |
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340 * Returns the location and bounds of the area where the image is drawn |
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341 * |
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342 * @return The bounds of the of the image area. May return <code>null</code> |
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343 * if the underlying widget implementation doesn't provide this |
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344 * information |
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345 * @since 3.4 |
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346 */ |
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347 public Rectangle getImageBounds() { |
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348 return row.getImageBounds(columnIndex); |
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349 } |
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350 |
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351 /** |
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352 * Gets the foreground color of the cell. |
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353 * |
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354 * @return the foreground of the cell or <code>null</code> for the default foreground |
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355 * |
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356 * @since 3.4 |
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357 */ |
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358 public Color getForeground() { |
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359 return row.getForeground(columnIndex); |
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360 } |
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361 |
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362 /** |
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363 * Gets the background color of the cell. |
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364 * |
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365 * @return the background of the cell or <code>null</code> for the default background |
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366 * |
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367 * @since 3.4 |
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368 */ |
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369 public Color getBackground() { |
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370 return row.getBackground(columnIndex); |
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371 } |
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372 |
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373 /** |
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374 * Gets the font of the cell. |
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375 * |
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376 * @return the font of the cell or <code>null</code> for the default font |
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377 * |
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378 * @since 3.4 |
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379 */ |
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380 public Font getFont() { |
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381 return row.getFont(columnIndex); |
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382 } |
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383 |
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384 /* |
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385 * (non-Javadoc) |
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386 * |
| 10 | 387 * @see java.lang.Object#hashCode() |
| 388 */ | |
| 389 public override hash_t toHash() { | |
| 390 const int prime = 31; | |
| 391 int result = 1; | |
| 392 result = prime * result + columnIndex; | |
| 393 result = prime * result + ((row is null) ? 0 : row.toHash()); | |
| 394 return result; | |
| 395 } | |
| 396 | |
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397 /* |
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398 * (non-Javadoc) |
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399 * |
| 10 | 400 * @see java.lang.Object#equals(java.lang.Object) |
| 401 */ | |
| 402 public override int opEquals(Object obj) { | |
| 403 if (this is obj) | |
| 404 return true; | |
| 405 if (obj is null) | |
| 406 return false; | |
| 407 if (this.classinfo !is obj.classinfo ) | |
| 408 return false; | |
| 409 ViewerCell other = cast(ViewerCell) obj; | |
| 410 if (columnIndex !is other.columnIndex) | |
| 411 return false; | |
| 412 if (row is null) { | |
| 413 if (other.row !is null) | |
| 414 return false; | |
| 415 } else if (!row.opEquals(other.row)) | |
| 416 return false; | |
| 417 return true; | |
| 418 } | |
| 90 | 419 |
| 420 private int getWidth() { | |
| 421 return row.getWidth(columnIndex); | |
| 422 } | |
| 423 | |
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424 private bool isVisible() { |
| 90 | 425 return getWidth() > 0; |
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426 } |
| 10 | 427 } |