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annotate org.eclipse.jface.examples.databinding/src/org/eclipse/jface/examples/databinding/snippets/Snippet013TableViewerEditing.d @ 100:e884642ad36e
more work on examples
author | Frank Benoit <benoit@tionex.de> |
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date | Thu, 23 Apr 2009 00:02:38 +0200 |
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1 /******************************************************************************* |
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2 * Copyright (c) 2006 The Pampered Chef, Inc. 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 * The Pampered Chef, Inc. - initial API and implementation |
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10 * Tom Schindl - cell editing |
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11 * Matthew Hall - bugs 260329, 260337 |
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12 ******************************************************************************/ |
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13 |
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14 module org.eclipse.jface.examples.databinding.snippets.Snippet013TableViewerEditing; |
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15 |
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16 import java.lang.all; |
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17 |
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18 import java.beans.PropertyChangeListener; |
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19 import java.beans.PropertyChangeSupport; |
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20 import java.util.LinkedList; |
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21 import java.util.List; |
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22 |
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23 import org.eclipse.core.databinding.DataBindingContext; |
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24 import org.eclipse.core.databinding.beans.BeanProperties; |
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25 import org.eclipse.core.databinding.beans.BeansObservables; |
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26 import org.eclipse.core.databinding.observable.Realm; |
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27 import org.eclipse.core.databinding.observable.list.WritableList; |
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28 import org.eclipse.core.databinding.observable.value.IObservableValue; |
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29 import org.eclipse.jface.databinding.swt.SWTObservables; |
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30 import org.eclipse.jface.databinding.viewers.ObservableValueEditingSupport; |
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31 import org.eclipse.jface.databinding.viewers.ViewerSupport; |
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32 import org.eclipse.jface.databinding.viewers.ViewersObservables; |
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33 import org.eclipse.jface.viewers.CellEditor; |
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34 import org.eclipse.jface.viewers.ColumnViewer; |
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35 import org.eclipse.jface.viewers.TableViewer; |
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36 import org.eclipse.jface.viewers.TableViewerColumn; |
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37 import org.eclipse.jface.viewers.TextCellEditor; |
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38 import org.eclipse.jface.viewers.ViewerCell; |
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39 import org.eclipse.swt.SWT; |
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40 import org.eclipse.swt.layout.FillLayout; |
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41 import org.eclipse.swt.widgets.Composite; |
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42 import org.eclipse.swt.widgets.Display; |
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43 import org.eclipse.swt.widgets.Label; |
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44 import org.eclipse.swt.widgets.Shell; |
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45 import org.eclipse.swt.widgets.Table; |
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46 |
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47 /** |
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48 * Demonstrates binding a TableViewer to a collection using the 3.3 Viewer APIs. |
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49 */ |
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50 public class Snippet013TableViewerEditing { |
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51 public static void main(String[] args) { |
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52 final Display display = new Display(); |
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53 Realm.runWithDefault(SWTObservables.getRealm(display), new Runnable() { |
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54 public void run() { |
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55 ViewModel viewModel = new ViewModel(); |
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56 Shell shell = new View(viewModel).createShell(); |
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57 |
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58 // The SWT event loop |
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59 while (!shell.isDisposed()) { |
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60 if (!display.readAndDispatch()) { |
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61 display.sleep(); |
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62 } |
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63 } |
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64 } |
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65 }); |
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66 } |
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67 |
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68 // Minimal JavaBeans support |
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69 public static abstract class AbstractModelObject { |
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70 private PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport( |
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71 this); |
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72 |
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73 public void addPropertyChangeListener(PropertyChangeListener listener) { |
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74 propertyChangeSupport.addPropertyChangeListener(listener); |
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75 } |
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76 |
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77 public void addPropertyChangeListener(String propertyName, |
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78 PropertyChangeListener listener) { |
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79 propertyChangeSupport.addPropertyChangeListener(propertyName, |
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80 listener); |
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81 } |
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82 |
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83 public void removePropertyChangeListener(PropertyChangeListener listener) { |
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84 propertyChangeSupport.removePropertyChangeListener(listener); |
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85 } |
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86 |
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87 public void removePropertyChangeListener(String propertyName, |
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88 PropertyChangeListener listener) { |
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89 propertyChangeSupport.removePropertyChangeListener(propertyName, |
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90 listener); |
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91 } |
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92 |
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93 protected void firePropertyChange(String propertyName, Object oldValue, |
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94 Object newValue) { |
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95 propertyChangeSupport.firePropertyChange(propertyName, oldValue, |
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96 newValue); |
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97 } |
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98 } |
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99 |
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100 // The data model class. This is normally a persistent class of some sort. |
100 | 101 static class Person : AbstractModelObject { |
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102 // A property... |
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103 String name = "John Smith"; |
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104 |
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105 public Person(String name) { |
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106 this.name = name; |
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107 } |
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108 |
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109 public String getName() { |
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110 return name; |
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111 } |
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112 |
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113 public void setName(String name) { |
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114 String oldValue = this.name; |
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115 this.name = name; |
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116 firePropertyChange("name", oldValue, name); |
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117 } |
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118 } |
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119 |
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120 // The View's model--the root of our Model graph for this particular GUI. |
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121 // |
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122 // Typically each View class has a corresponding ViewModel class. |
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123 // The ViewModel is responsible for getting the objects to edit from the |
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124 // data access tier. Since this snippet doesn't have any persistent objects |
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125 // ro retrieve, this ViewModel just instantiates a model object to edit. |
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126 static class ViewModel { |
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127 // The model to bind |
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128 private List people = new LinkedList(); |
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129 { |
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130 people.add(new Person("Steve Northover")); |
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131 people.add(new Person("Grant Gayed")); |
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132 people.add(new Person("Veronika Irvine")); |
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133 people.add(new Person("Mike Wilson")); |
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134 people.add(new Person("Christophe Cornu")); |
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135 people.add(new Person("Lynne Kues")); |
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136 people.add(new Person("Silenio Quarti")); |
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137 } |
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138 |
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139 public List getPeople() { |
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140 return people; |
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141 } |
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142 } |
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143 |
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144 /** |
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145 * Editing support that uses JFace Data Binding to control the editing |
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146 * lifecycle. The standard EditingSupport get/setValue(...) lifecycle is not |
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147 * used. |
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148 * |
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149 * @since 3.3 |
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150 */ |
100 | 151 private static class InlineEditingSupport : |
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152 ObservableValueEditingSupport { |
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153 private CellEditor cellEditor; |
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154 |
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155 /** |
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156 * @param viewer |
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157 * @param dbc |
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158 */ |
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159 public InlineEditingSupport(ColumnViewer viewer, DataBindingContext dbc) { |
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160 |
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161 super(viewer, dbc); |
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162 cellEditor = new TextCellEditor((Composite) viewer.getControl()); |
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163 } |
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164 |
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165 protected CellEditor getCellEditor(Object element) { |
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166 return cellEditor; |
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167 } |
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168 |
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169 protected IObservableValue doCreateCellEditorObservable( |
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170 CellEditor cellEditor) { |
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171 |
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172 return SWTObservables.observeText(cellEditor.getControl(), |
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173 SWT.Modify); |
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174 } |
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175 |
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176 protected IObservableValue doCreateElementObservable(Object element, |
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177 ViewerCell cell) { |
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178 return BeansObservables.observeValue(element, "name"); |
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179 } |
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180 } |
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181 |
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182 // The GUI view |
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183 static class View { |
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184 private ViewModel viewModel; |
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185 private Table committers; |
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186 private Label selectedCommitter; |
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187 |
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188 public View(ViewModel viewModel) { |
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189 this.viewModel = viewModel; |
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190 } |
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191 |
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192 public Shell createShell() { |
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193 // Build a UI |
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194 Display display = Display.getDefault(); |
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195 Shell shell = new Shell(display); |
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196 shell.setLayout(new FillLayout(SWT.VERTICAL)); |
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197 committers = new Table(shell, SWT.BORDER | SWT.FULL_SELECTION); |
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198 committers.setLinesVisible(true); |
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199 |
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200 selectedCommitter = new Label(shell, SWT.NONE); |
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201 // Set up data binding. In an RCP application, the threading |
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202 // Realm |
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203 // will be set for you automatically by the Workbench. In an SWT |
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204 // application, you can do this once, wrpping your binding |
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205 // method call. |
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206 DataBindingContext bindingContext = new DataBindingContext(); |
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207 bindGUI(bindingContext); |
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208 |
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209 // Open and return the Shell |
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210 shell.setSize(100, 300); |
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211 shell.open(); |
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212 return shell; |
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213 } |
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214 |
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215 protected void bindGUI(DataBindingContext bindingContext) { |
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216 // Since we're using a JFace Viewer, we do first wrap our Table... |
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217 TableViewer peopleViewer = new TableViewer(committers); |
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218 TableViewerColumn column = new TableViewerColumn(peopleViewer, |
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219 SWT.NONE); |
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220 column.setEditingSupport(new InlineEditingSupport(peopleViewer, |
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221 bindingContext)); |
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222 column.getColumn().setWidth(100); |
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223 |
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224 // Bind viewer to model |
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225 ViewerSupport.bind(peopleViewer, new WritableList(viewModel |
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226 .getPeople(), Person.class), BeanProperties.value( |
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227 Person.class, "name")); |
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228 |
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229 // bind selectedCommitter label to the name of the current selection |
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230 IObservableValue selection = ViewersObservables |
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231 .observeSingleSelection(peopleViewer); |
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232 bindingContext.bindValue(SWTObservables |
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233 .observeText(selectedCommitter), BeansObservables |
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234 .observeDetailValue(selection, "name", String.class)); |
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235 } |
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236 } |
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237 |
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238 } |
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239 void main( String[] args ){ |
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240 Snippet013TableViewerEditing.main(args); |
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241 } |