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annotate org.eclipse.jface/src/org/eclipse/jface/viewers/TableViewerFocusCellManager.d @ 12:bc29606a740c

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Added dwt-addons in original directory structure of eclipse.org
author Frank Benoit <benoit@tionex.de>
date Sat, 14 Mar 2009 18:23:29 +0100
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1 /*******************************************************************************
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2 * Copyright (c) 2007, 2008 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Tom Schindl <tom.schindl@bestsolution.at> - initial API and implementation
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11 * fix in bug: 210752
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12 * Port to the D programming language:
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13 * Frank Benoit <benoit@tionex.de>
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14 *******************************************************************************/
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15
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16 module org.eclipse.jface.viewers.TableViewerFocusCellManager;
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17
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18 import org.eclipse.jface.viewers.SWTFocusCellManager;
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19 import org.eclipse.jface.viewers.CellNavigationStrategy;
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20 import org.eclipse.jface.viewers.TableViewer;
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21 import org.eclipse.jface.viewers.FocusCellHighlighter;
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22 import org.eclipse.jface.viewers.ViewerCell;
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23
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24 import org.eclipse.swt.widgets.Table;
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25
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26 import java.lang.all;
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27 import java.util.Set;
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28
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29 /**
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30 * This class is responsible to provide the concept of cells for {@link Table}.
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31 * This concept is needed to provide features like editor activation with the
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32 * keyboard
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33 *
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34 * @since 3.3
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35 *
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36 */
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37 public class TableViewerFocusCellManager : SWTFocusCellManager {
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38 private static const CellNavigationStrategy TABLE_NAVIGATE;
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39 static this(){
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40 TABLE_NAVIGATE = new CellNavigationStrategy();
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41 }
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42
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43 /**
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44 * Create a new manager with a default navigation strategy:
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45 * <ul>
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46 * <li><code>SWT.ARROW_UP</code>: navigate to cell above</li>
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47 * <li><code>SWT.ARROW_DOWN</code>: navigate to cell below</li>
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48 * <li><code>SWT.ARROW_RIGHT</code>: navigate to next visible cell on
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49 * the right</li>
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50 * <li><code>SWT.ARROW_LEFT</code>: navigate to next visible cell on the
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51 * left</li>
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52 * </ul>
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53 *
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54 * @param viewer
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55 * the viewer the manager is bound to
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56 * @param focusDrawingDelegate
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57 * the delegate responsible to highlight selected cell
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58 */
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59 public this(TableViewer viewer,
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60 FocusCellHighlighter focusDrawingDelegate) {
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61 this(viewer, focusDrawingDelegate, TABLE_NAVIGATE);
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62 }
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63
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64 /**
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65 * Create a new manager
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66 *
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67 * @param viewer
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68 * the viewer the manager is bound to
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69 * @param focusDrawingDelegate
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70 * the delegate responsible to highlight selected cell
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71 * @param navigationStrategy
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72 * the strategy used to navigate the cells
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73 * @since 3.4
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74 */
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75 public this(TableViewer viewer,
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76 FocusCellHighlighter focusDrawingDelegate,
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77 CellNavigationStrategy navigationStrategy) {
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78 super(viewer, focusDrawingDelegate, navigationStrategy);
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79 }
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80
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81 override ViewerCell getInitialFocusCell() {
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82 Table table = cast(Table) getViewer().getControl();
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83
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84 if (! table.isDisposed() && table.getItemCount() > 0 && ! table.getItem(0).isDisposed()) {
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85 return getViewer().getViewerRowFromItem_package(table.getItem(0))
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86 .getCell(0);
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87 }
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88
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89 return null;
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90 }
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91
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92 public ViewerCell getFocusCell() {
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93 ViewerCell cell = super.getFocusCell();
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94 Table t = cast(Table) getViewer().getControl();
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95
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96 // It is possible that the selection has changed under the hood
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97 if (cell !is null) {
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98 if (t.getSelection().length is 1
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99 && t.getSelection()[0] !is cell.getItem()) {
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100 setFocusCell(getViewer().getViewerRowFromItem_package(
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101 t.getSelection()[0]).getCell(cell.getColumnIndex()));
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102 }
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103 }
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104
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105 return super.getFocusCell();
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106 }
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107
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108 }