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annotate org.eclipse.jface/src/org/eclipse/jface/internal/provisional/action/ToolBarManager2.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) 2006 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 * 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 org.eclipse.jface.internal.provisional.action.ToolBarManager2;
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15
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16 import org.eclipse.jface.internal.provisional.action.IToolBarManager2;
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17 import org.eclipse.jface.action.IContributionManagerOverrides;
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18
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19 import org.eclipse.swt.widgets.Composite;
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20 import org.eclipse.swt.widgets.Control;
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21 import org.eclipse.swt.widgets.ToolBar;
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22 import org.eclipse.core.runtime.ListenerList;
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23 import org.eclipse.jface.action.ToolBarManager;
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24 import org.eclipse.jface.util.IPropertyChangeListener;
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25 import org.eclipse.jface.util.PropertyChangeEvent;
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26
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27 import java.lang.all;
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28 import java.util.Set;
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29
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30 /**
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31 * Extends <code>ToolBarManager</code> to implement <code>IToolBarManager2</code>.
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32 *
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33 * <p>
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34 * <strong>EXPERIMENTAL</strong>. This class or interface has been added as
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35 * part of a work in progress. There is a guarantee neither that this API will
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36 * work nor that it will remain the same. Please do not use this API without
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37 * consulting with the Platform/UI team.
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38 * </p>
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39 *
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40 * @since 3.2
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41 */
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42 public class ToolBarManager2 : ToolBarManager, IToolBarManager2 {
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43
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44 // delegate to super
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45 public ToolBar createControl(Composite parent) {
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46 return super.createControl(parent);
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47 }
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48 public ToolBar getControl() {
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49 return super.getControl();
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50 }
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51 public void dispose() {
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52 super.dispose();
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53 }
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54 public void setOverrides(IContributionManagerOverrides newOverrides) {
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55 super.setOverrides(newOverrides);
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56 }
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57
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58 /**
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59 * A collection of objects listening to changes to this manager. This
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60 * collection is <code>null</code> if there are no listeners.
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61 */
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62 private /+transient+/ ListenerList listenerList = null;
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63
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64 /**
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65 * Creates a new tool bar manager with the default SWT button style. Use the
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66 * <code>createControl</code> method to create the tool bar control.
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67 */
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68 public this() {
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69 super();
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70 }
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71
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72 /**
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73 * Creates a tool bar manager with the given SWT button style. Use the
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74 * <code>createControl</code> method to create the tool bar control.
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75 *
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76 * @param style
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77 * the tool bar item style
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78 * @see org.eclipse.swt.widgets.ToolBar for valid style bits
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79 */
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80 public this(int style) {
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81 super(style);
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82 }
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83
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84 /**
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85 * Creates a tool bar manager for an existing tool bar control. This manager
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86 * becomes responsible for the control, and will dispose of it when the
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87 * manager is disposed.
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88 *
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89 * @param toolbar
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90 * the tool bar control
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91 */
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92 public this(ToolBar toolbar) {
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93 super(toolbar);
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94 }
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95
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96 /* (non-Javadoc)
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97 * @see org.eclipse.jface.action.IToolBarManager2#createControl2(org.eclipse.swt.widgets.Composite)
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98 */
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99 public Control createControl2(Composite parent) {
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100 return createControl(parent);
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101 }
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102
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103 /* (non-Javadoc)
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104 * @see org.eclipse.jface.action.IToolBarManager2#getControl2()
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105 */
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106 public Control getControl2() {
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107 return getControl();
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108 }
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109
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110 /* (non-Javadoc)
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111 * @see org.eclipse.jface.action.IToolBarManager2#getItemCount()
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112 */
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113 public int getItemCount() {
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114 ToolBar toolBar = getControl();
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115 if (toolBar is null || toolBar.isDisposed()) {
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116 return 0;
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117 }
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118 return toolBar.getItemCount();
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119 }
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120
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121 /* (non-Javadoc)
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122 * @see org.eclipse.jface.action.IToolBarManager2#addPropertyChangeListener(org.eclipse.jface.util.IPropertyChangeListener)
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123 */
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124 public void addPropertyChangeListener(IPropertyChangeListener listener) {
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125 if (listenerList is null) {
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126 listenerList = new ListenerList(ListenerList.IDENTITY);
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127 }
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128
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129 listenerList.add(cast(Object)listener);
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130 }
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131
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132 /* (non-Javadoc)
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133 * @see org.eclipse.jface.action.IToolBarManager2#removePropertyChangeListener(org.eclipse.jface.util.IPropertyChangeListener)
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134 */
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135 public void removePropertyChangeListener(IPropertyChangeListener listener) {
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136 if (listenerList !is null) {
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137 listenerList.remove(cast(Object)listener);
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138
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139 if (listenerList.isEmpty()) {
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140 listenerList = null;
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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 /**
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146 * @return the listeners attached to this event manager.
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147 * The listeners currently attached; may be empty, but never
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148 * null.
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149 *
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150 */
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151 protected final Object[] getListeners() {
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152 final ListenerList list = listenerList;
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153 if (list is null) {
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154 return new Object[0];
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155 }
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156
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157 return list.getListeners();
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158 }
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159
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160 /*
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161 * Notifies any property change listeners that a property has changed. Only
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162 * listeners registered at the time this method is called are notified.
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163 */
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164 private void firePropertyChange(PropertyChangeEvent event) {
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165 Object[] list = getListeners();
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166 for (int i = 0; i < list.length; ++i) {
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167 (cast(IPropertyChangeListener) list[i]).propertyChange(event);
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168 }
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169 }
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170
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171 /*
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172 * Notifies any property change listeners that a property has changed. Only
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173 * listeners registered at the time this method is called are notified. This
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174 * method avoids creating an event object if there are no listeners
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175 * registered, but calls firePropertyChange(PropertyChangeEvent) if there are.
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176 */
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177 private void firePropertyChange(String propertyName,
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178 Object oldValue, Object newValue) {
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179 if (listenerList !is null) {
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180 firePropertyChange(new PropertyChangeEvent(this, propertyName,
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181 oldValue, newValue));
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182 }
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183 }
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184
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185 /* (non-Javadoc)
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186 * @see org.eclipse.jface.action.ToolBarManager#relayout(org.eclipse.swt.widgets.ToolBar, int, int)
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187 */
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188 protected override void relayout(ToolBar layoutBar, int oldCount, int newCount) {
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189 super.relayout(layoutBar, oldCount, newCount);
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190 firePropertyChange(PROP_LAYOUT, new Integer(oldCount), new Integer(newCount));
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191 }
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192 }