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1 /*******************************************************************************
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2 * Copyright (c) 2006 Tom Schindl 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 * Tom Schindl - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 ******************************************************************************/
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13
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14 module dwtx.jface.viewers.TreeViewerColumn;
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15
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16 import dwtx.jface.viewers.ViewerColumn;
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17 import dwtx.jface.viewers.TreeViewer;
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18
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19 import dwt.widgets.Tree;
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20 import dwt.widgets.TreeColumn;
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21
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22 import dwt.dwthelper.utils;
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23
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24 /**
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25 * ViewerColumn implementation for TreeViewer to enable column-specific label
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26 * providers and editing support.
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27 *
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28 * @since 3.3
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29 *
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30 */
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31 public final class TreeViewerColumn : ViewerColumn {
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32 private TreeColumn column;
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33
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34 /**
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35 * Creates a new viewer column for the given {@link TreeViewer} on a new
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36 * {@link TreeColumn} with the given style bits. The column is inserted at
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37 * the given index into the list of columns.
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38 *
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39 * @param viewer
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40 * the tree viewer to which this column belongs
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41 * @param style
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42 * the style bits used to create the column, for applicable style bits
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43 * see {@link TreeColumn}
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44 * @see TreeColumn#TreeColumn(Tree, int)
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45 */
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46 public this(TreeViewer viewer, int style) {
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47 this(viewer, style, -1);
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48 }
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49
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50 /**
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51 * Creates a new viewer column for the given {@link TreeViewer} on a new
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52 * {@link TreeColumn} with the given style bits. The column is added at the
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53 * end of the list of columns.
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54 *
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55 * @param viewer
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56 * the tree viewer to which this column belongs
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57 * @param style
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58 * the style bits used to create the column, for applicable style bits
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59 * see {@link TreeColumn}
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60 * @param index
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61 * the index at which to place the newly created column
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62 * @see TreeColumn#TreeColumn(Tree, int, int)
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63 */
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64 public this(TreeViewer viewer, int style, int index) {
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65 this(viewer, createColumn(viewer.getTree(), style, index));
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66 }
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67
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68 /**
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69 * Creates a new viewer column for the given {@link TreeViewer} on the given
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70 * {@link TreeColumn}.
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71 *
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72 * @param viewer
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73 * the tree viewer to which this column belongs
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74 * @param column
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75 * the underlying tree column
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76 */
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77 public this(TreeViewer viewer, TreeColumn column) {
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78 super(viewer, column);
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79 this.column = column;
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80 }
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81
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82 private static TreeColumn createColumn(Tree table, int style, int index) {
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83 if (index >= 0) {
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84 return new TreeColumn(table, style, index);
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85 }
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86
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87 return new TreeColumn(table, style);
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88 }
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89
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90 /**
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91 * @return the underlying DWT column
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92 */
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93 public TreeColumn getColumn() {
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94 return column;
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95 }
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96 }
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