Mercurial > projects > dwt-mac
annotate dwt/widgets/MenuItem.d @ 7:e831403a80a9
Add 'cast' to casts
author | Frank Benoit <benoit@tionex.de> |
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date | Wed, 27 Aug 2008 14:30:35 +0200 |
parents | 1a8b3cb347e0 |
children | 7d135fe0caf2 |
rev | line source |
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0
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1 /******************************************************************************* |
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2 * Copyright (c) 2000, 2007 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 *******************************************************************************/ |
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11 module dwt.widgets.MenuItem; |
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12 |
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13 import dwt.dwthelper.utils; |
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14 |
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15 |
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16 import dwt.DWT; |
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17 import dwt.DWTException; |
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18 import dwt.events.ArmListener; |
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19 import dwt.events.HelpListener; |
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20 import dwt.events.SelectionEvent; |
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21 import dwt.events.SelectionListener; |
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22 import dwt.graphics.Image; |
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23 import dwt.internal.cocoa.NSMenu; |
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24 import dwt.internal.cocoa.NSMenuItem; |
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25 import dwt.internal.cocoa.NSString; |
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26 import dwt.internal.cocoa.OS; |
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27 import dwt.internal.cocoa.SWTMenu; |
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28 |
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29 /** |
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30 * Instances of this class represent a selectable user interface object |
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31 * that issues notification when pressed and released. |
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32 * <dl> |
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33 * <dt><b>Styles:</b></dt> |
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34 * <dd>CHECK, CASCADE, PUSH, RADIO, SEPARATOR</dd> |
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35 * <dt><b>Events:</b></dt> |
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36 * <dd>Arm, Help, Selection</dd> |
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37 * </dl> |
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38 * <p> |
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39 * Note: Only one of the styles CHECK, CASCADE, PUSH, RADIO and SEPARATOR |
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40 * may be specified. |
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41 * </p><p> |
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42 * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
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43 * </p> |
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44 */ |
3 | 45 public class MenuItem : Item { |
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46 NSMenuItem nsItem; |
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47 Menu parent, menu; |
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48 int accelerator; |
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49 // int x, y, width, height; |
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50 |
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51 /** |
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52 * Constructs a new instance of this class given its parent |
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53 * (which must be a <code>Menu</code>) and a style value |
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54 * describing its behavior and appearance. The item is added |
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55 * to the end of the items maintained by its parent. |
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56 * <p> |
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57 * The style value is either one of the style constants defined in |
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58 * class <code>DWT</code> which is applicable to instances of this |
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59 * class, or must be built by <em>bitwise OR</em>'ing together |
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60 * (that is, using the <code>int</code> "|" operator) two or more |
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61 * of those <code>DWT</code> style constants. The class description |
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62 * lists the style constants that are applicable to the class. |
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63 * Style bits are also inherited from superclasses. |
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64 * </p> |
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65 * |
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66 * @param parent a menu control which will be the parent of the new instance (cannot be null) |
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67 * @param style the style of control to construct |
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68 * |
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69 * @exception IllegalArgumentException <ul> |
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70 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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71 * </ul> |
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72 * @exception DWTException <ul> |
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73 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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74 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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75 * </ul> |
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76 * |
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77 * @see DWT#CHECK |
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78 * @see DWT#CASCADE |
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79 * @see DWT#PUSH |
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80 * @see DWT#RADIO |
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81 * @see DWT#SEPARATOR |
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82 * @see Widget#checkSubclass |
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83 * @see Widget#getStyle |
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84 */ |
5 | 85 public this (Menu parent, int style) { |
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86 super (parent, checkStyle (style)); |
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87 this.parent = parent; |
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88 parent.createItem (this, parent.getItemCount ()); |
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89 } |
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90 |
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91 /** |
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92 * Constructs a new instance of this class given its parent |
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93 * (which must be a <code>Menu</code>), a style value |
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94 * describing its behavior and appearance, and the index |
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95 * at which to place it in the items maintained by its parent. |
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96 * <p> |
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97 * The style value is either one of the style constants defined in |
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98 * class <code>DWT</code> which is applicable to instances of this |
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99 * class, or must be built by <em>bitwise OR</em>'ing together |
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100 * (that is, using the <code>int</code> "|" operator) two or more |
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101 * of those <code>DWT</code> style constants. The class description |
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102 * lists the style constants that are applicable to the class. |
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103 * Style bits are also inherited from superclasses. |
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104 * </p> |
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105 * |
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106 * @param parent a menu control which will be the parent of the new instance (cannot be null) |
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107 * @param style the style of control to construct |
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108 * @param index the zero-relative index to store the receiver in its parent |
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109 * |
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110 * @exception IllegalArgumentException <ul> |
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111 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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112 * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li> |
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113 * </ul> |
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114 * @exception DWTException <ul> |
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115 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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116 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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117 * </ul> |
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118 * |
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119 * @see DWT#CHECK |
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120 * @see DWT#CASCADE |
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121 * @see DWT#PUSH |
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122 * @see DWT#RADIO |
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123 * @see DWT#SEPARATOR |
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124 * @see Widget#checkSubclass |
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125 * @see Widget#getStyle |
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126 */ |
5 | 127 public this (Menu parent, int style, int index) { |
0
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128 super (parent, checkStyle (style)); |
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129 this.parent = parent; |
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130 parent.createItem (this, index); |
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131 } |
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132 |
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133 /** |
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134 * Adds the listener to the collection of listeners who will |
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135 * be notified when the arm events are generated for the control, by sending |
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136 * it one of the messages defined in the <code>ArmListener</code> |
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137 * interface. |
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138 * |
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139 * @param listener the listener which should be notified |
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140 * |
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141 * @exception IllegalArgumentException <ul> |
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142 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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143 * </ul> |
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144 * @exception DWTException <ul> |
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145 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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146 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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147 * </ul> |
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148 * |
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149 * @see ArmListener |
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150 * @see #removeArmListener |
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151 */ |
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152 public void addArmListener (ArmListener listener) { |
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153 checkWidget (); |
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154 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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155 TypedListener typedListener = new TypedListener (listener); |
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156 addListener (DWT.Arm, typedListener); |
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157 } |
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158 |
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159 /** |
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160 * Adds the listener to the collection of listeners who will |
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161 * be notified when the help events are generated for the control, by sending |
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162 * it one of the messages defined in the <code>HelpListener</code> |
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163 * interface. |
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164 * |
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165 * @param listener the listener which should be notified |
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166 * |
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167 * @exception IllegalArgumentException <ul> |
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168 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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169 * </ul> |
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170 * @exception DWTException <ul> |
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171 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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172 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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173 * </ul> |
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174 * |
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175 * @see HelpListener |
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176 * @see #removeHelpListener |
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177 */ |
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178 public void addHelpListener (HelpListener listener) { |
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179 checkWidget (); |
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180 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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181 TypedListener typedListener = new TypedListener (listener); |
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182 addListener (DWT.Help, typedListener); |
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183 } |
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184 |
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185 /** |
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186 * Adds the listener to the collection of listeners who will |
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187 * be notified when the menu item is selected by the user, by sending |
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188 * it one of the messages defined in the <code>SelectionListener</code> |
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189 * interface. |
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190 * <p> |
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191 * When <code>widgetSelected</code> is called, the stateMask field of the event object is valid. |
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192 * <code>widgetDefaultSelected</code> is not called. |
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193 * </p> |
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194 * |
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195 * @param listener the listener which should be notified when the menu item is selected by the user |
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196 * |
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197 * @exception IllegalArgumentException <ul> |
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198 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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199 * </ul> |
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200 * @exception DWTException <ul> |
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201 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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202 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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203 * </ul> |
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204 * |
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205 * @see SelectionListener |
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206 * @see #removeSelectionListener |
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207 * @see SelectionEvent |
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208 */ |
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209 public void addSelectionListener (SelectionListener listener) { |
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210 checkWidget (); |
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211 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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212 TypedListener typedListener = new TypedListener(listener); |
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213 addListener (DWT.Selection,typedListener); |
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214 addListener (DWT.DefaultSelection,typedListener); |
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215 } |
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216 |
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217 protected void checkSubclass () { |
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218 if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); |
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219 } |
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220 |
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221 static int checkStyle (int style) { |
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222 return checkBits (style, DWT.PUSH, DWT.CHECK, DWT.RADIO, DWT.SEPARATOR, DWT.CASCADE, 0); |
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223 } |
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224 |
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225 NSMenu createEmptyMenu () { |
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226 if ((parent.style & DWT.BAR) !is 0) { |
7 | 227 return cast(NSMenu) new SWTMenu ().alloc ().init (); |
0
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228 } |
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229 return null; |
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230 } |
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231 |
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232 void destroyWidget () { |
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233 parent.destroyItem (this); |
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234 releaseHandle (); |
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235 } |
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236 |
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237 /** |
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238 * Returns the widget accelerator. An accelerator is the bit-wise |
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239 * OR of zero or more modifier masks and a key. Examples: |
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240 * <code>DWT.CONTROL | DWT.SHIFT | 'T', DWT.ALT | DWT.F2</code>. |
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241 * The default value is zero, indicating that the menu item does |
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242 * not have an accelerator. |
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243 * |
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244 * @return the accelerator or 0 |
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245 * |
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246 * </ul> |
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247 * @exception DWTException <ul> |
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248 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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249 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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250 * </ul> |
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251 */ |
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252 public int getAccelerator () { |
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253 checkWidget (); |
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254 return accelerator; |
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255 } |
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256 |
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257 /** |
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258 * Returns <code>true</code> if the receiver is enabled, and |
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259 * <code>false</code> otherwise. A disabled menu item is typically |
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260 * not selectable from the user interface and draws with an |
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261 * inactive or "grayed" look. |
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262 * |
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263 * @return the receiver's enabled state |
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264 * |
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265 * @exception DWTException <ul> |
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266 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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267 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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268 * </ul> |
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269 * |
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270 * @see #isEnabled |
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271 */ |
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272 public bool getEnabled () { |
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273 checkWidget(); |
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274 return (state & DISABLED) is 0; |
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275 } |
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276 |
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277 /** |
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278 * Returns the receiver's cascade menu if it has one or null |
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279 * if it does not. Only <code>CASCADE</code> menu items can have |
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280 * a pull down menu. The sequence of key strokes, button presses |
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281 * and/or button releases that are used to request a pull down |
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282 * menu is platform specific. |
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283 * |
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284 * @return the receiver's menu |
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285 * |
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286 * @exception DWTException <ul> |
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287 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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288 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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289 * </ul> |
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290 */ |
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291 public Menu getMenu () { |
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292 checkWidget (); |
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293 return menu; |
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294 } |
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295 |
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296 String getNameText () { |
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297 if ((style & DWT.SEPARATOR) !is 0) return "|"; |
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298 return super.getNameText (); |
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299 } |
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300 |
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301 /** |
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302 * Returns the receiver's parent, which must be a <code>Menu</code>. |
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303 * |
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304 * @return the receiver's parent |
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305 * |
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306 * @exception DWTException <ul> |
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307 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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308 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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309 * </ul> |
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310 */ |
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311 public Menu getParent () { |
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312 checkWidget (); |
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313 return parent; |
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314 } |
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315 |
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316 /** |
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317 * Returns <code>true</code> if the receiver is selected, |
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318 * and false otherwise. |
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319 * <p> |
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320 * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, |
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321 * it is selected when it is checked. |
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322 * |
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323 * @return the selection state |
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324 * |
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325 * @exception DWTException <ul> |
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326 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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327 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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328 * </ul> |
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329 */ |
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330 public bool getSelection () { |
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331 checkWidget (); |
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332 if ((style & (DWT.CHECK | DWT.RADIO)) is 0) return false; |
7 | 333 return (cast(NSMenuItem)nsItem).state() is OS.NSOnState; |
0
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334 } |
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335 |
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336 //int kEventProcessCommand (int nextHandler, int theEvent, int userData) { |
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337 // //TEMPORARY CODE |
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338 // if (!isEnabled ()) return OS.noErr; |
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339 // |
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340 // if ((style & DWT.CHECK) !is 0) { |
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341 // setSelection (!getSelection ()); |
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342 // } else { |
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343 // if ((style & DWT.RADIO) !is 0) { |
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344 // if ((parent.getStyle () & DWT.NO_RADIO_GROUP) !is 0) { |
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345 // setSelection (!getSelection ()); |
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346 // } else { |
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347 // selectRadio (); |
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348 // } |
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349 // } |
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350 // } |
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351 // int [] modifiers = new int [1]; |
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352 // OS.GetEventParameter (theEvent, OS.kEventParamKeyModifiers, OS.typeUInt32, null, 4, null, modifiers); |
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353 // Event event = new Event (); |
7 | 354 // setInputState (event, cast(short) 0, OS.GetCurrentEventButtonState (), modifiers [0]); |
0
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355 // postEvent (DWT.Selection, event); |
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356 // return OS.noErr; |
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357 //} |
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358 |
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359 /** |
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360 * Returns <code>true</code> if the receiver is enabled and all |
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361 * of the receiver's ancestors are enabled, and <code>false</code> |
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362 * otherwise. A disabled menu item is typically not selectable from the |
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363 * user interface and draws with an inactive or "grayed" look. |
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364 * |
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365 * @return the receiver's enabled state |
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366 * |
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367 * @exception DWTException <ul> |
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368 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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369 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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370 * </ul> |
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371 * |
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372 * @see #getEnabled |
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373 */ |
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374 public bool isEnabled () { |
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375 return getEnabled () && parent.isEnabled (); |
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376 } |
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377 |
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378 //int keyGlyph (int key) { |
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379 // switch (key) { |
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380 // case DWT.BS: return OS.kMenuDeleteLeftGlyph; |
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381 // case DWT.CR: return OS.kMenuReturnGlyph; |
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382 // case DWT.DEL: return OS.kMenuDeleteRightGlyph; |
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383 // case DWT.ESC: return OS.kMenuEscapeGlyph; |
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384 // case DWT.LF: return OS.kMenuReturnGlyph; |
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385 // case DWT.TAB: return OS.kMenuTabRightGlyph; |
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386 // case ' ': return OS.kMenuBlankGlyph; |
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387 //// case ' ': return OS.kMenuSpaceGlyph; |
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388 // case DWT.ALT: return OS.kMenuOptionGlyph; |
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389 // case DWT.SHIFT: return OS.kMenuShiftGlyph; |
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390 // case DWT.CONTROL: return OS.kMenuControlISOGlyph; |
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391 // case DWT.COMMAND: return OS.kMenuCommandGlyph; |
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392 // case DWT.ARROW_UP: return OS.kMenuUpArrowGlyph; |
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393 // case DWT.ARROW_DOWN: return OS.kMenuDownArrowGlyph; |
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394 // case DWT.ARROW_LEFT: return OS.kMenuLeftArrowGlyph; |
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395 // case DWT.ARROW_RIGHT: return OS.kMenuRightArrowGlyph; |
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396 // case DWT.PAGE_UP: return OS.kMenuPageUpGlyph; |
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397 // case DWT.PAGE_DOWN: return OS.kMenuPageDownGlyph; |
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398 // case DWT.F1: return OS.kMenuF1Glyph; |
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399 // case DWT.F2: return OS.kMenuF2Glyph; |
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400 // case DWT.F3: return OS.kMenuF3Glyph; |
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401 // case DWT.F4: return OS.kMenuF4Glyph; |
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402 // case DWT.F5: return OS.kMenuF5Glyph; |
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403 // case DWT.F6: return OS.kMenuF6Glyph; |
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404 // case DWT.F7: return OS.kMenuF7Glyph; |
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405 // case DWT.F8: return OS.kMenuF8Glyph; |
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406 // case DWT.F9: return OS.kMenuF9Glyph; |
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407 // case DWT.F10: return OS.kMenuF10Glyph; |
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408 // case DWT.F11: return OS.kMenuF11Glyph; |
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409 // case DWT.F12: return OS.kMenuF12Glyph; |
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410 // } |
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411 // return OS.kMenuNullGlyph; |
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412 //} |
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413 |
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414 void releaseHandle () { |
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415 super.releaseHandle (); |
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416 if (nsItem !is null) nsItem.release(); |
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417 nsItem = null; |
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418 parent = null; |
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419 } |
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420 |
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421 void releaseChildren (bool destroy) { |
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422 if (menu !is null) { |
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423 menu.release (false); |
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424 menu = null; |
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425 } |
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426 super.releaseChildren (destroy); |
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427 } |
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428 |
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429 void releaseWidget () { |
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430 super.releaseWidget (); |
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431 accelerator = 0; |
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432 if (this is parent.defaultItem) parent.defaultItem = null; |
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433 } |
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434 |
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435 /** |
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436 * Removes the listener from the collection of listeners who will |
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437 * be notified when the arm events are generated for the control. |
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438 * |
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439 * @param listener the listener which should no longer be notified |
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440 * |
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441 * @exception IllegalArgumentException <ul> |
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442 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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443 * </ul> |
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444 * @exception DWTException <ul> |
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445 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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446 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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447 * </ul> |
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448 * |
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449 * @see ArmListener |
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450 * @see #addArmListener |
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451 */ |
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452 public void removeArmListener (ArmListener listener) { |
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453 checkWidget (); |
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454 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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455 if (eventTable is null) return; |
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456 eventTable.unhook (DWT.Arm, listener); |
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457 } |
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458 |
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459 /** |
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460 * Removes the listener from the collection of listeners who will |
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461 * be notified when the help events are generated for the control. |
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462 * |
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463 * @param listener the listener which should no longer be notified |
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464 * |
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465 * @exception IllegalArgumentException <ul> |
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466 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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467 * </ul> |
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468 * @exception DWTException <ul> |
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469 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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470 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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471 * </ul> |
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472 * |
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473 * @see HelpListener |
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474 * @see #addHelpListener |
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475 */ |
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476 public void removeHelpListener (HelpListener listener) { |
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477 checkWidget (); |
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478 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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479 if (eventTable is null) return; |
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480 eventTable.unhook (DWT.Help, listener); |
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481 } |
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482 |
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483 /** |
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484 * Removes the listener from the collection of listeners who will |
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485 * be notified when the control is selected by the user. |
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486 * |
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487 * @param listener the listener which should no longer be notified |
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488 * |
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489 * @exception IllegalArgumentException <ul> |
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490 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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491 * </ul> |
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492 * @exception DWTException <ul> |
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493 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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494 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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495 * </ul> |
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496 * |
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497 * @see SelectionListener |
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498 * @see #addSelectionListener |
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499 */ |
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500 public void removeSelectionListener (SelectionListener listener) { |
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501 checkWidget (); |
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502 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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503 if (eventTable is null) return; |
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504 eventTable.unhook (DWT.Selection, listener); |
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505 eventTable.unhook (DWT.DefaultSelection,listener); |
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506 } |
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507 |
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508 void selectRadio () { |
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509 int index = 0; |
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510 MenuItem [] items = parent.getItems (); |
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511 while (index < items.length && items [index] !is this) index++; |
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512 int i = index - 1; |
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513 while (i >= 0 && items [i].setRadioSelection (false)) --i; |
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514 int j = index + 1; |
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515 while (j < items.length && items [j].setRadioSelection (false)) j++; |
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516 setSelection (true); |
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517 } |
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518 |
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519 void sendSelection () { |
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520 if ((style & DWT.CHECK) !is 0) { |
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521 setSelection (!getSelection ()); |
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522 } else { |
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523 if ((style & DWT.RADIO) !is 0) { |
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524 if ((parent.getStyle () & DWT.NO_RADIO_GROUP) !is 0) { |
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525 setSelection (!getSelection ()); |
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526 } else { |
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527 selectRadio (); |
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528 } |
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529 } |
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530 } |
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531 Event event = new Event (); |
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532 //TODO state mask |
7 | 533 // setInputState (event, cast(short) 0, OS.GetCurrentEventButtonState (), modifiers [0]); |
0
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534 postEvent (DWT.Selection, event); |
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535 } |
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536 |
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537 /** |
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538 * Sets the widget accelerator. An accelerator is the bit-wise |
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539 * OR of zero or more modifier masks and a key. Examples: |
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540 * <code>DWT.MOD1 | DWT.MOD2 | 'T', DWT.MOD3 | DWT.F2</code>. |
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541 * <code>DWT.CONTROL | DWT.SHIFT | 'T', DWT.ALT | DWT.F2</code>. |
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542 * The default value is zero, indicating that the menu item does |
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543 * not have an accelerator. |
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544 * |
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545 * @param accelerator an integer that is the bit-wise OR of masks and a key |
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546 * |
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547 * </ul> |
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548 * @exception DWTException <ul> |
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549 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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550 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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551 * </ul> |
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552 */ |
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553 public void setAccelerator (int accelerator) { |
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554 checkWidget (); |
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555 this.accelerator = accelerator; |
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556 int key = accelerator & DWT.KEY_MASK; |
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557 int virtualKey = Display.untranslateKey (key); |
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558 NSString string = null; |
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559 if (virtualKey !is 0) { |
7 | 560 string = NSString.stringWith (cast(wchar)virtualKey + ""); |
0
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561 } else { |
7 | 562 string = NSString.stringWith (cast(wchar)key + "").lowercaseString(); |
0
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563 } |
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564 nsItem.setKeyEquivalent (string); |
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565 int mask = 0; |
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566 if ((accelerator & DWT.SHIFT) !is 0) mask |= OS.NSShiftKeyMask; |
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567 if ((accelerator & DWT.CONTROL) !is 0) mask |= OS.NSControlKeyMask; |
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568 // if ((accelerator & DWT.COMMAND) !is 0) mask &= ~OS.kMenuNoCommandModifier; |
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569 if ((accelerator & DWT.COMMAND) !is 0) mask |= OS.NSCommandKeyMask; |
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570 if ((accelerator & DWT.ALT) !is 0) mask |= OS.NSAlternateKeyMask; |
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571 nsItem.setKeyEquivalentModifierMask (mask); |
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572 if ((this.accelerator is 0 && accelerator !is 0) || (this.accelerator !is 0 && accelerator is 0)) { |
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573 updateText (); |
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574 } |
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575 } |
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576 |
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577 /** |
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578 * Enables the receiver if the argument is <code>true</code>, |
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579 * and disables it otherwise. A disabled menu item is typically |
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580 * not selectable from the user interface and draws with an |
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581 * inactive or "grayed" look. |
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582 * |
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583 * @param enabled the new enabled state |
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584 * |
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585 * @exception DWTException <ul> |
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586 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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587 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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588 * </ul> |
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589 */ |
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590 public void setEnabled (bool enabled) { |
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591 checkWidget (); |
7 | 592 (cast(NSMenuItem)nsItem).setEnabled(enabled); |
0
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593 } |
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594 |
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595 /** |
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596 * Sets the image the receiver will display to the argument. |
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597 * <p> |
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598 * Note: This operation is a hint and is not supported on |
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599 * platforms that do not have this concept (for example, Windows NT). |
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600 * </p> |
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601 * |
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|
602 * @param image the image to display |
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603 * |
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604 * @exception DWTException <ul> |
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605 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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606 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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607 * </ul> |
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608 */ |
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609 public void setImage (Image image) { |
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610 checkWidget (); |
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611 if ((style & DWT.SEPARATOR) !is 0) return; |
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612 super.setImage (image); |
7 | 613 (cast(NSMenuItem)nsItem).setImage(image !is null? image.handle : null); |
0
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614 } |
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615 |
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616 /** |
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617 * Sets the receiver's pull down menu to the argument. |
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618 * Only <code>CASCADE</code> menu items can have a |
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619 * pull down menu. The sequence of key strokes, button presses |
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620 * and/or button releases that are used to request a pull down |
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621 * menu is platform specific. |
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622 * <p> |
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623 * Note: Disposing of a menu item that has a pull down menu |
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624 * will dispose of the menu. To avoid this behavior, set the |
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625 * menu to null before the menu item is disposed. |
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626 * </p> |
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627 * |
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628 * @param menu the new pull down menu |
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629 * |
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630 * @exception IllegalArgumentException <ul> |
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631 * <li>ERROR_MENU_NOT_DROP_DOWN - if the menu is not a drop down menu</li> |
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632 * <li>ERROR_MENUITEM_NOT_CASCADE - if the menu item is not a <code>CASCADE</code></li> |
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633 * <li>ERROR_INVALID_ARGUMENT - if the menu has been disposed</li> |
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634 * <li>ERROR_INVALID_PARENT - if the menu is not in the same widget tree</li> |
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635 * </ul> |
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636 * @exception DWTException <ul> |
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637 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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638 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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639 * </ul> |
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640 */ |
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|
641 public void setMenu (Menu menu) { |
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642 checkWidget (); |
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643 |
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644 /* Check to make sure the new menu is valid */ |
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645 if ((style & DWT.CASCADE) is 0) { |
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646 error (DWT.ERROR_MENUITEM_NOT_CASCADE); |
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647 } |
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648 if (menu !is null) { |
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649 if (menu.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); |
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650 if ((menu.style & DWT.DROP_DOWN) is 0) { |
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651 error (DWT.ERROR_MENU_NOT_DROP_DOWN); |
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652 } |
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|
653 if (menu.parent !is parent.parent) { |
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654 error (DWT.ERROR_INVALID_PARENT); |
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655 } |
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|
656 } |
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|
657 /* Assign the new menu */ |
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658 Menu oldMenu = this.menu; |
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659 if (oldMenu is menu) return; |
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660 if (oldMenu !is null) oldMenu.cascade = null; |
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661 this.menu = menu; |
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662 |
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663 /* Update the menu in the OS */ |
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664 NSMenu menuHandle; |
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665 if (menu is null) { |
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666 menuHandle = createEmptyMenu (); |
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667 } else { |
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668 menu.cascade = this; |
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669 menuHandle = menu.nsMenu; |
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670 } |
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671 nsItem.setSubmenu (menuHandle); |
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|
672 |
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673 /* Update menu title with parent item title */ |
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674 updateText (); |
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675 } |
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|
676 |
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677 bool setRadioSelection (bool value) { |
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678 if ((style & DWT.RADIO) is 0) return false; |
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679 if (getSelection () !is value) { |
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680 setSelection (value); |
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681 postEvent (DWT.Selection); |
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682 } |
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683 return true; |
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684 } |
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|
685 |
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|
686 /** |
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687 * Sets the selection state of the receiver. |
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688 * <p> |
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689 * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, |
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690 * it is selected when it is checked. |
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|
691 * |
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|
692 * @param selected the new selection state |
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693 * |
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|
694 * @exception DWTException <ul> |
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695 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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696 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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697 * </ul> |
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698 */ |
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699 public void setSelection (bool selected) { |
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700 checkWidget (); |
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701 if ((style & (DWT.CHECK | DWT.RADIO)) is 0) return; |
7 | 702 (cast(NSMenuItem)nsItem).setState(selected ? OS.NSOnState : OS.NSOffState); |
0
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703 } |
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704 |
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705 /** |
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706 * Sets the receiver's text. The string may include |
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707 * the mnemonic character and accelerator text. |
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708 * <p> |
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709 * Mnemonics are indicated by an '&' that causes the next |
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710 * character to be the mnemonic. When the user presses a |
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711 * key sequence that matches the mnemonic, a selection |
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712 * event occurs. On most platforms, the mnemonic appears |
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713 * underlined but may be emphasised in a platform specific |
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714 * manner. The mnemonic indicator character '&' can be |
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715 * escaped by doubling it in the string, causing a single |
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716 * '&' to be displayed. |
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717 * </p> |
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718 * <p> |
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719 * Accelerator text is indicated by the '\t' character. |
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720 * On platforms that support accelerator text, the text |
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721 * that follows the '\t' character is displayed to the user, |
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722 * typically indicating the key stroke that will cause |
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723 * the item to become selected. On most platforms, the |
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724 * accelerator text appears right aligned in the menu. |
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725 * Setting the accelerator text does not install the |
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726 * accelerator key sequence. The accelerator key sequence |
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727 * is installed using #setAccelerator. |
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728 * </p> |
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729 * |
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730 * @param string the new text |
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731 * |
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732 * @exception IllegalArgumentException <ul> |
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733 * <li>ERROR_NULL_ARGUMENT - if the text is null</li> |
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734 * </ul> |
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735 * @exception DWTException <ul> |
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736 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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737 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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738 * </ul> |
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739 * |
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740 * @see #setAccelerator |
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741 */ |
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742 public void setText (String string) { |
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743 checkWidget (); |
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744 if (string is null) error (DWT.ERROR_NULL_ARGUMENT); |
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745 if ((style & DWT.SEPARATOR) !is 0) return; |
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746 if (text.equals (string)) return; |
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747 super.setText (string); |
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748 updateText (); |
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749 } |
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750 |
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751 void updateText() { |
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752 char [] buffer = new char [text.length ()]; |
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753 text.getChars (0, buffer.length, buffer, 0); |
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754 int i=0, j=0; |
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755 while (i < buffer.length) { |
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756 if (buffer [i] is '\t') break; |
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757 if ((buffer [j++] = buffer [i++]) is '&') { |
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758 if (i is buffer.length) {continue;} |
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759 if (buffer [i] is '&') {i++; continue;} |
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760 j--; |
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761 } |
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762 } |
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763 String text = new String (buffer, 0, j); |
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764 NSMenu submenu = nsItem.submenu (); |
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765 NSString label = NSString.stringWith (text); |
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766 if(submenu !is null && (parent.getStyle () & DWT.BAR) !is 0) { |
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767 submenu.setTitle (label); |
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768 } else { |
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769 nsItem.setTitle (label); |
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770 } |
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771 } |
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772 |
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773 } |
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774 |