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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 * yidabu at gmail dot com ( D China http://www.d-programming-language-china.org/ )
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12 *******************************************************************************/
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13
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14 module jface.snippets.Snippet026TreeViewerTabEditing;
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15
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16
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17 import dwtx.jface.viewers.CellEditor;
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18 import dwtx.jface.viewers.ColumnLabelProvider;
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19 import dwtx.jface.viewers.ColumnViewerEditor;
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20 import dwtx.jface.viewers.ColumnViewer;
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21 import dwtx.jface.viewers.ColumnViewerEditorActivationStrategy;
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22 import dwtx.jface.viewers.EditingSupport;
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23 import dwtx.jface.viewers.ColumnViewerEditorActivationEvent;
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24 import dwtx.jface.viewers.FocusCellOwnerDrawHighlighter;
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25 import dwtx.jface.viewers.ITreeContentProvider;
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26 import dwtx.jface.viewers.TextCellEditor;
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27 import dwtx.jface.viewers.TreePath;
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28 import dwtx.jface.viewers.TreeViewerFocusCellManager;
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29 import dwtx.jface.viewers.TreeViewerEditor;
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30 import dwtx.jface.viewers.TreeViewer;
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31 import dwtx.jface.viewers.TreeViewerColumn;
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32 import dwtx.jface.viewers.Viewer;
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33 import dwt.DWT;
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34 import dwt.events.SelectionEvent;
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35 import dwt.events.SelectionListener;
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36 import dwt.layout.FillLayout;
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37 import dwt.widgets.Button;
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38 import dwt.widgets.Display;
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39 import dwt.widgets.Shell;
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40
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41 import dwt.dwthelper.utils;
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42
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43 import tango.util.Convert;
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44 import tango.util.container.LinkedList;
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45
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46
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47 void main(String[] args) {
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48 Display display = new Display();
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49 Shell shell = new Shell(display);
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50 shell.setLayout(new FillLayout());
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51 new Snippet026TreeViewerTabEditing(shell);
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52 shell.open();
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53
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54 while (!shell.isDisposed()) {
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55 if (!display.readAndDispatch())
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56 display.sleep();
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57 }
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58
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59 display.dispose();
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60 }
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61
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62 /**
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63 * A simple TreeViewer to demonstrate usage
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64 *
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65 * @author Tom Schindl <tom.schindl@bestsolution.at>
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66 *
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67 */
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68 public class Snippet026TreeViewerTabEditing {
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69 alias LinkedList!(MyModel) ArrayList;
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70 public this(Shell shell) {
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71 Button b = new Button(shell,DWT.PUSH);
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72 b.setText("Remove column");
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73 final TreeViewer v = new TreeViewer(shell, DWT.BORDER
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74 | DWT.FULL_SELECTION);
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75 v.getTree().setLinesVisible(true);
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76 v.getTree().setHeaderVisible(true);
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77 b.addSelectionListener(new class(v) SelectionListener {
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78 TreeViewer v;
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79 this(TreeViewer v_)
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80 {
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81 this.v = v_;
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82 }
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83 public void widgetDefaultSelected(SelectionEvent e) {
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84
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85 }
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86
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87 public void widgetSelected(SelectionEvent e) {
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88 v.getTree().getColumn(1).dispose();
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89 }
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90
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91 });
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92
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93 TreeViewerFocusCellManager focusCellManager = new TreeViewerFocusCellManager(v,new FocusCellOwnerDrawHighlighter(v));
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94 ColumnViewerEditorActivationStrategy actSupport = new class(v) ColumnViewerEditorActivationStrategy {
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95 this(ColumnViewer v_)
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96 {
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97 super(v_);
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98 }
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99 protected bool isEditorActivationEvent(
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100 ColumnViewerEditorActivationEvent event) {
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101 return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL
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102 || event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION
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103 || (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED && event.keyCode == DWT.CR)
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104 || event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
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105 }
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106 };
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107
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108 TreeViewerEditor.create(v, focusCellManager, actSupport, ColumnViewerEditor.TABBING_HORIZONTAL
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109 | ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
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110 | ColumnViewerEditor.TABBING_VERTICAL | ColumnViewerEditor.KEYBOARD_ACTIVATION);
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111
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112 final TextCellEditor textCellEditor = new TextCellEditor(v.getTree());
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113
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114 TreeViewerColumn column = new TreeViewerColumn(v, DWT.NONE);
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115 column.getColumn().setWidth(200);
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116 column.getColumn().setMoveable(true);
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117 column.getColumn().setText("Column 1");
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118 column.setLabelProvider(new class() ColumnLabelProvider {
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119
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120 public String getText(Object element) {
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121 return "Column 1 => " ~ element.toString();
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122 }
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123
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124 });
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125 column.setEditingSupport(new class(v) EditingSupport {
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126 this(ColumnViewer v_)
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127 {
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128 super(v_);
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129 }
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130 protected bool canEdit(Object element) {
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131 return false;
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132 }
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133
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134 protected CellEditor getCellEditor(Object element) {
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135 return textCellEditor;
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136 }
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137
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138 protected Object getValue(Object element) {
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139 return stringcast( (to!(String)((cast(MyModel) element).counter)) );
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140 }
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141
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142 protected void setValue(Object element, Object value) {
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143 (cast(MyModel) element).counter = Integer.parseInt(value.toString());
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144 v.update(element, null);
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145 }
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146 });
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147
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148 column = new TreeViewerColumn(v, DWT.NONE);
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149 column.getColumn().setWidth(200);
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150 column.getColumn().setMoveable(true);
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151 column.getColumn().setText("Column 2");
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152 column.setLabelProvider(new class() ColumnLabelProvider {
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153
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154 public String getText(Object element) {
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155 return "Column 2 => " ~ element.toString();
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156 }
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157
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158 });
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159 column.setEditingSupport(new class(v) EditingSupport {
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160 this(ColumnViewer v_)
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161 {
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162 super(v_);
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163 }
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164 protected bool canEdit(Object element) {
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165 return true;
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166 }
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167
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168 protected CellEditor getCellEditor(Object element) {
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169 return textCellEditor;
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170 }
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171
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172 protected Object getValue(Object element) {
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173 return stringcast( to!(String)((cast(MyModel) element).counter) );
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174 }
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175
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176 protected void setValue(Object element, Object value) {
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177 (cast(MyModel) element).counter = Integer.parseInt(value.toString());
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178 v.update(element, null);
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179 }
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180 });
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181
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182 column = new TreeViewerColumn(v, DWT.NONE);
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183 column.getColumn().setWidth(200);
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184 column.getColumn().setMoveable(true);
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185 column.getColumn().setText("Column 3");
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186 column.setLabelProvider(new class() ColumnLabelProvider {
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187 public String getText(Object element) {
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188 return "Column 3 => " ~ element.toString();
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189 }
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190
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191 });
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192 column.setEditingSupport(new class(v) EditingSupport {
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193 this(ColumnViewer v_)
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194 {
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195 super(v_);
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196 }
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197 protected bool canEdit(Object element) {
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198 return true;
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199 }
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200
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201 protected CellEditor getCellEditor(Object element) {
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202 return textCellEditor;
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203 }
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204
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205 protected Object getValue(Object element) {
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206 return stringcast( to!(String)((cast(MyModel) element).counter) );
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207 }
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208
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209 protected void setValue(Object element, Object value) {
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210 (cast(MyModel) element).counter = Integer.parseInt(value.toString());
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211 v.update(element, null);
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212 }
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213 });
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214
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215 v.setContentProvider(new MyContentProvider());
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216
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217 v.setInput(createModel());
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218 }
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219
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220 private MyModel createModel() {
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221
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222 MyModel root = new MyModel(0, null);
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223 root.counter = 0;
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224
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225 MyModel tmp;
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226 MyModel subItem;
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227 for (int i = 1; i < 10; i++) {
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228 tmp = new MyModel(i, root);
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229 root.child.add(tmp);
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230 for (int j = 1; j < i; j++) {
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231 subItem = new MyModel(j, tmp);
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232 subItem.child.add(new MyModel(j * 100, subItem));
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233 tmp.child.add(subItem);
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234 }
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235 }
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236
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237 return root;
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238 }
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239
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240 private class MyContentProvider : ITreeContentProvider {
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241
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242 public Object[] getElements(Object inputElement) {
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243 return (cast(MyModel) inputElement).child.toArray();
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244 }
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245
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246 public void dispose() {
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247 }
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248
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249 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
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250 }
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251
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252 public Object[] getChildren(Object parentElement) {
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253 return getElements(parentElement);
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254 }
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255
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256 public Object getParent(Object element) {
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257 if (element is null) {
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258 return null;
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259 }
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260 return (cast(MyModel) element).parent;
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261 }
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262
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263 public bool hasChildren(Object element) {
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264 return (cast(MyModel) element).child.size() > 0;
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265 }
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266
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267 }
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268
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269 public class MyModel {
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270 public MyModel parent;
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271
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272 public ArrayList child;
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273
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274 public int counter;
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275
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276 public this(int counter, MyModel parent) {
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277 this.parent = parent;
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278 this.counter = counter;
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279 child = new ArrayList();
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280 }
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281
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282 public String toString() {
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283 String rv = "Item ";
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284 if (parent !is null) {
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285 rv = parent.toString() ~ ".";
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286 }
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287
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288 rv ~= to!(String)(counter);
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289
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290 return rv;
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291 }
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292 }
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293
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294 }
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