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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 dwtx.jface.snippets.Snippet043NoColumnTreeViewerKeyboardEditing;
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15
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16 import dwtx.jface.viewers.CellEditor;
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17 import dwtx.jface.viewers.ColumnViewerEditor;
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18 import dwtx.jface.viewers.ColumnViewer;
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19 import dwtx.jface.viewers.ColumnViewerEditorActivationStrategy;
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20 import dwtx.jface.viewers.ColumnViewerEditorActivationEvent;
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21 import dwtx.jface.viewers.FocusCellOwnerDrawHighlighter;
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22 import dwtx.jface.viewers.ICellModifier;
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23 import dwtx.jface.viewers.ITreeContentProvider;
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24 import dwtx.jface.viewers.TextCellEditor;
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25 import dwtx.jface.viewers.TreePath;
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26 import dwtx.jface.viewers.TreeViewerFocusCellManager;
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27 import dwtx.jface.viewers.TreeViewerEditor;
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28 import dwtx.jface.viewers.TreeViewer;
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29 import dwtx.jface.viewers.Viewer;
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30 import dwt.DWT;
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31 import dwt.events.SelectionEvent;
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32 import dwt.events.SelectionListener;
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33 import dwt.layout.FillLayout;
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34 import dwt.widgets.Button;
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35 import dwt.widgets.Display;
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36 import dwt.widgets.Item;
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37 import dwt.widgets.Shell;
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38
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39 import dwt.dwthelper.utils;
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40
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41 import tango.util.Convert;
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42 import tango.util.container.LinkedList;
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43
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44
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45 void main(String[] args) {
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46 Display display = new Display();
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47 Shell shell = new Shell(display);
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48 shell.setLayout(new FillLayout());
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49 new Snippet043NoColumnTreeViewerKeyboardEditing(shell);
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50 shell.open();
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51
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52 while (!shell.isDisposed()) {
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53 if (!display.readAndDispatch())
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54 display.sleep();
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55 }
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56
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57 display.dispose();
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58 }
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59
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60 /**
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61 * Demonstrates how to use keyboard-editing support in a TreeViewer with no column
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62 *
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63 * @author Tom Schindl <tom.schindl@bestsolution.at>
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64 *
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65 */
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66 public class Snippet043NoColumnTreeViewerKeyboardEditing {
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67 alias LinkedList!(MyModel) ArrayList;
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68 public this(Shell shell) {
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69 Button b = new Button(shell, DWT.PUSH);
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70 b.setText("BBB");
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71 final TreeViewer v = new TreeViewer(shell, DWT.BORDER
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72 | DWT.FULL_SELECTION);
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73 b.addSelectionListener(new class(v) SelectionListener {
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74 TreeViewer v;
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75 this(TreeViewer v_)
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76 {
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77 this.v = v_;
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78 }
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79
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80 public void widgetDefaultSelected(SelectionEvent e) {
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81
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82 }
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83
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84 public void widgetSelected(SelectionEvent e) {
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85 MyModel root = cast(MyModel) v.getInput();
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86 TreePath path = new TreePath([ root, root.child.get(1),
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87 (cast(MyModel) root.child.get(1)).child.get(0)] );
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88 v.editElement(path, 0);
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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 v.setCellEditors([ new TextCellEditor(v.getTree()) ]);
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94 v.setColumnProperties(["col1"]);
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95 v.setCellModifier(new class(v) ICellModifier {
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96 TreeViewer v;
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97 this(TreeViewer v_)
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98 {
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99 this.v = v_;
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100 }
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101 public bool canModify(Object element, String property) {
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102 return true;
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103 }
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104
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105 public Object getValue(Object element, String property) {
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106 return stringcast( to!(String)((cast(MyModel) element).counter) ~ "" );
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107 }
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108
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109 public void modify(Object element, String property, Object value) {
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110 element = (cast(Item) element).getData();
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111 (cast(MyModel) element).counter = Integer.parseInt(value.toString());
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112 v.update(element, null);
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113 }
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114
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115 });
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116
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117 TreeViewerFocusCellManager focusCellManager = new TreeViewerFocusCellManager(
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118 v, new FocusCellOwnerDrawHighlighter(v));
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119 ColumnViewerEditorActivationStrategy actSupport = new class(v) ColumnViewerEditorActivationStrategy {
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120 this(ColumnViewer v)
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121 {
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122 super(v);
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123 }
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124 protected bool isEditorActivationEvent(
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125 ColumnViewerEditorActivationEvent event) {
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126 return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL
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127 || event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION
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128 || (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED && event.keyCode == DWT.CR)
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129 || event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
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130 }
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131 };
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132
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133 TreeViewerEditor.create(v, focusCellManager, actSupport,
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134 ColumnViewerEditor.TABBING_HORIZONTAL
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135 | ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
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136 | ColumnViewerEditor.TABBING_VERTICAL
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137 | ColumnViewerEditor.KEYBOARD_ACTIVATION);
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138
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139 v.setContentProvider(new MyContentProvider());
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140
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141 v.setInput(createModel());
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142 }
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143
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144 private MyModel createModel() {
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145
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146 MyModel root = new MyModel(0, null);
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147 root.counter = 0;
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148
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149 MyModel tmp;
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150 MyModel subItem;
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151 for (int i = 1; i < 10; i++) {
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152 tmp = new MyModel(i, root);
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153 root.child.add(tmp);
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154 for (int j = 1; j < i; j++) {
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155 subItem = new MyModel(j, tmp);
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156 subItem.child.add(new MyModel(j * 100, subItem));
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157 tmp.child.add(subItem);
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158 }
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159 }
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160
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161 return root;
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162 }
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163
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164
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165
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166 private class MyContentProvider : ITreeContentProvider {
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167
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168 public Object[] getElements(Object inputElement) {
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169 return (cast(MyModel) inputElement).child.toArray();
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170 }
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171
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172 public void dispose() {
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173 }
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174
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175 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
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176 }
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177
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178 public Object[] getChildren(Object parentElement) {
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179 return getElements(parentElement);
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180 }
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181
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182 public Object getParent(Object element) {
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183 if (element is null) {
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184 return null;
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185 }
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186 return (cast(MyModel) element).parent;
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187 }
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188
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189 public bool hasChildren(Object element) {
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190 return (cast(MyModel) element).child.size() > 0;
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191 }
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192
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193 }
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194
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195 public class MyModel {
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196 public MyModel parent;
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197
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198 public ArrayList child;
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199
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200 public int counter;
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201
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202 public this(int counter_, MyModel parent_) {
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203 this.parent = parent_;
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204 this.counter = counter_;
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205 child = new ArrayList();
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206 }
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207
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208 public String toString() {
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209 String rv = "Item ";
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210 if (parent !is null) {
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211 rv = parent.toString() ~ ".";
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212 }
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213
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214 rv ~= to!(String)(counter);
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215
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216 return rv;
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217 }
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218 }
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219
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220 }
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