Mercurial > projects > dwt-mac
annotate dwt/widgets/Menu.d @ 156:969e7de37c3d default tip
Fixes to get dwt to work with dmd and ldc
author | Jacob Carlborg <doob@me.com> |
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date | Wed, 08 Jul 2009 21:56:44 +0200 |
parents | 1324fd764db4 |
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rev | line source |
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145 | 1 /******************************************************************************* |
45 | 2 * Copyright (c) 2000, 2008 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 * Port to the D programming language: |
45 | 12 * Jacob Carlborg <doob@me.com> |
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13 *******************************************************************************/ |
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14 module dwt.widgets.Menu; |
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15 |
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16 |
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17 import dwt.DWT; |
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18 import dwt.DWTException; |
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19 import dwt.events.HelpListener; |
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20 import dwt.events.MenuListener; |
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21 import dwt.graphics.Point; |
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22 import dwt.internal.cocoa.NSEvent; |
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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.NSPoint; |
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26 import dwt.internal.cocoa.NSString; |
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27 import dwt.internal.cocoa.NSView; |
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28 import dwt.internal.cocoa.NSWindow; |
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29 import dwt.internal.cocoa.OS; |
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30 import dwt.internal.cocoa.SWTMenu; |
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31 import dwt.internal.cocoa.SWTMenuItem; |
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32 |
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33 import dwt.dwthelper.System; |
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34 import dwt.dwthelper.utils; |
56 | 35 import dwt.internal.objc.cocoa.Cocoa; |
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36 import objc = dwt.internal.objc.runtime; |
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37 import dwt.widgets.TypedListener; |
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38 import dwt.widgets.Event; |
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39 import dwt.widgets.MenuItem; |
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40 import dwt.widgets.Widget; |
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41 import dwt.widgets.Control; |
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42 import dwt.widgets.Decorations; |
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43 import dwt.widgets.Shell; |
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44 |
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45 /** |
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46 * Instances of this class are user interface objects that contain |
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47 * menu items. |
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48 * <dl> |
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49 * <dt><b>Styles:</b></dt> |
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50 * <dd>BAR, DROP_DOWN, POP_UP, NO_RADIO_GROUP</dd> |
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51 * <dd>LEFT_TO_RIGHT, RIGHT_TO_LEFT</dd> |
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52 * <dt><b>Events:</b></dt> |
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53 * <dd>Help, Hide, Show </dd> |
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54 * </dl> |
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55 * <p> |
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56 * Note: Only one of BAR, DROP_DOWN and POP_UP may be specified. |
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57 * Only one of LEFT_TO_RIGHT or RIGHT_TO_LEFT may be specified. |
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58 * </p><p> |
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59 * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
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60 * </p> |
45 | 61 * |
62 * @see <a href="http://www.eclipse.org/swt/snippets/#menu">Menu snippets</a> | |
63 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: ControlExample</a> | |
64 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
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65 */ |
3 | 66 public class Menu : Widget { |
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67 /** |
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68 * the handle to the OS resource |
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69 * (Warning: This field is platform dependent) |
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70 * <p> |
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71 * <b>IMPORTANT:</b> This field is <em>not</em> part of the DWT |
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72 * public API. It is marked public only so that it can be shared |
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73 * within the packages provided by DWT. It is not available on all |
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74 * platforms and should never be accessed from application code. |
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75 * </p> |
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76 */ |
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77 NSMenu nsMenu; |
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78 int x, y, itemCount; |
45 | 79 bool hasLocation, visible; |
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80 MenuItem [] items; |
45 | 81 MenuItem cascade, defaultItem; |
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82 Decorations parent; |
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83 |
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84 /** |
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85 * Constructs a new instance of this class given its parent, |
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86 * and sets the style for the instance so that the instance |
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87 * will be a popup menu on the given parent's shell. |
45 | 88 * <p> |
89 * After constructing a menu, it can be set into its parent | |
90 * using <code>parent.setMenu(menu)</code>. In this case, the parent may | |
91 * be any control in the same widget tree as the parent. | |
92 * </p> | |
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93 * |
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94 * @param parent a control which will be the parent of the new instance (cannot be null) |
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95 * |
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96 * @exception IllegalArgumentException <ul> |
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97 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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98 * </ul> |
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99 * @exception DWTException <ul> |
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100 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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101 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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102 * </ul> |
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103 * |
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104 * @see DWT#POP_UP |
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105 * @see Widget#checkSubclass |
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106 * @see Widget#getStyle |
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107 */ |
5 | 108 public this (Control parent) { |
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109 this (checkNull (parent).menuShell (), DWT.POP_UP); |
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110 } |
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111 |
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112 /** |
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113 * Constructs a new instance of this class given its parent |
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114 * (which must be a <code>Decorations</code>) and a style value |
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115 * describing its behavior and appearance. |
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116 * <p> |
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117 * The style value is either one of the style constants defined in |
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118 * class <code>DWT</code> which is applicable to instances of this |
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119 * class, or must be built by <em>bitwise OR</em>'ing together |
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120 * (that is, using the <code>int</code> "|" operator) two or more |
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121 * of those <code>DWT</code> style constants. The class description |
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122 * lists the style constants that are applicable to the class. |
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123 * Style bits are also inherited from superclasses. |
45 | 124 * </p><p> |
125 * After constructing a menu or menuBar, it can be set into its parent | |
126 * using <code>parent.setMenu(menu)</code> or <code>parent.setMenuBar(menuBar)</code>. | |
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127 * </p> |
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128 * |
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129 * @param parent a decorations control which will be the parent of the new instance (cannot be null) |
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130 * @param style the style of menu to construct |
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131 * |
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132 * @exception IllegalArgumentException <ul> |
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133 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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134 * </ul> |
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135 * @exception DWTException <ul> |
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136 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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137 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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138 * </ul> |
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139 * |
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140 * @see DWT#BAR |
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141 * @see DWT#DROP_DOWN |
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142 * @see DWT#POP_UP |
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143 * @see Widget#checkSubclass |
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144 * @see Widget#getStyle |
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145 */ |
5 | 146 public this (Decorations parent, int style) { |
0
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147 super (parent, checkStyle (style)); |
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148 this.parent = parent; |
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149 createWidget (); |
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150 } |
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151 |
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152 /** |
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153 * Constructs a new instance of this class given its parent |
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154 * (which must be a <code>Menu</code>) and sets the style |
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155 * for the instance so that the instance will be a drop-down |
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156 * menu on the given parent's parent. |
45 | 157 * <p> |
158 * After constructing a drop-down menu, it can be set into its parentMenu | |
159 * using <code>parentMenu.setMenu(menu)</code>. | |
160 * </p> | |
0
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161 * |
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162 * @param parentMenu a menu which will be the parent of the new instance (cannot be null) |
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163 * |
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164 * @exception IllegalArgumentException <ul> |
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165 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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166 * </ul> |
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167 * @exception DWTException <ul> |
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168 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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169 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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170 * </ul> |
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171 * |
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172 * @see DWT#DROP_DOWN |
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173 * @see Widget#checkSubclass |
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174 * @see Widget#getStyle |
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175 */ |
5 | 176 public this (Menu parentMenu) { |
0
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177 this (checkNull (parentMenu).parent, DWT.DROP_DOWN); |
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178 } |
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179 |
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180 /** |
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181 * Constructs a new instance of this class given its parent |
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182 * (which must be a <code>MenuItem</code>) and sets the style |
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183 * for the instance so that the instance will be a drop-down |
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184 * menu on the given parent's parent menu. |
45 | 185 * <p> |
186 * After constructing a drop-down menu, it can be set into its parentItem | |
187 * using <code>parentItem.setMenu(menu)</code>. | |
188 * </p> | |
0
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189 * |
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190 * @param parentItem a menu item which will be the parent of the new instance (cannot be null) |
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191 * |
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192 * @exception IllegalArgumentException <ul> |
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193 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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194 * </ul> |
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195 * @exception DWTException <ul> |
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196 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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197 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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198 * </ul> |
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199 * |
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200 * @see DWT#DROP_DOWN |
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201 * @see Widget#checkSubclass |
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202 * @see Widget#getStyle |
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203 */ |
5 | 204 public this (MenuItem parentItem) { |
0
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205 this (checkNull (parentItem).parent); |
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206 } |
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207 |
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208 static Control checkNull (Control control) { |
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209 if (control is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); |
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210 return control; |
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211 } |
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212 |
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213 static Menu checkNull (Menu menu) { |
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214 if (menu is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); |
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215 return menu; |
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216 } |
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217 |
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218 static MenuItem checkNull (MenuItem item) { |
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219 if (item is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); |
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220 return item; |
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221 } |
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222 |
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223 static int checkStyle (int style) { |
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224 return checkBits (style, DWT.POP_UP, DWT.BAR, DWT.DROP_DOWN, 0, 0, 0); |
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225 } |
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226 |
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227 void _setVisible (bool visible) { |
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228 if ((style & (DWT.BAR | DWT.DROP_DOWN)) !is 0) return; |
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229 if (visible) { |
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230 Shell shell = getShell (); |
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231 NSWindow window = shell.window; |
18
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232 NSPoint location; |
0
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233 if (hasLocation) { |
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234 NSView topView = window.contentView(); |
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235 Point shellCoord = display.map(null, shell, new Point(x,y)); |
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236 location = NSPoint (); |
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237 location.x = shellCoord.x; |
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238 location.y = topView.frame().height - shellCoord.y; |
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239 } else { |
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240 location = window.mouseLocationOutsideOfEventStream(); |
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241 } |
56 | 242 NSEvent nsEvent = NSEvent.otherEventWithType(OS.NSApplicationDefined, location, 0, 0.0, window.windowNumber(), window.graphicsContext(), cast(short)0, 0, 0); |
45 | 243 NSMenu.popUpContextMenu(nsMenu, nsEvent, shell.view); |
0
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244 } else { |
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245 nsMenu.cancelTracking (); |
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246 } |
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247 } |
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248 |
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249 /** |
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250 * Adds the listener to the collection of listeners who will |
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251 * be notified when help events are generated for the control, |
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252 * by sending it one of the messages defined in the |
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253 * <code>HelpListener</code> interface. |
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254 * |
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255 * @param listener the listener which should be notified |
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256 * |
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257 * @exception IllegalArgumentException <ul> |
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258 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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259 * </ul> |
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260 * @exception DWTException <ul> |
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261 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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262 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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263 * </ul> |
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264 * |
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265 * @see HelpListener |
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266 * @see #removeHelpListener |
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267 */ |
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268 public void addHelpListener (HelpListener listener) { |
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269 checkWidget (); |
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270 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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271 TypedListener typedListener = new TypedListener (listener); |
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272 addListener (DWT.Help, typedListener); |
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273 } |
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274 |
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275 /** |
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276 * Adds the listener to the collection of listeners who will |
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277 * be notified when menus are hidden or shown, by sending it |
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278 * one of the messages defined in the <code>MenuListener</code> |
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279 * interface. |
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280 * |
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281 * @param listener the listener which should be notified |
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282 * |
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283 * @exception IllegalArgumentException <ul> |
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284 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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285 * </ul> |
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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 * @see MenuListener |
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292 * @see #removeMenuListener |
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293 */ |
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294 public void addMenuListener (MenuListener listener) { |
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295 checkWidget (); |
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296 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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297 TypedListener typedListener = new TypedListener (listener); |
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298 addListener (DWT.Hide,typedListener); |
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299 addListener (DWT.Show,typedListener); |
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300 } |
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301 |
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302 void createHandle () { |
45 | 303 display.addMenu (this); |
304 NSMenu widget = cast(NSMenu)(new SWTMenu()).alloc(); | |
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305 widget.initWithTitle(NSString.stringWith("")); |
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306 widget.setAutoenablesItems(false); |
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307 widget.setDelegate(widget); |
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308 nsMenu = widget; |
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309 } |
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310 |
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311 void createItem (MenuItem item, int index) { |
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312 if (!(0 <= index && index <= itemCount)) error (DWT.ERROR_INVALID_RANGE); |
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313 NSMenuItem nsItem = null; |
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314 if ((item.style & DWT.SEPARATOR) !is 0) { |
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315 nsItem = NSMenuItem.separatorItem(); |
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316 nsItem.retain(); |
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317 } else { |
18
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318 nsItem = cast(NSMenuItem)(new SWTMenuItem()).alloc(); |
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319 nsItem.initWithTitle(NSString.stringWith(""), null, NSString.stringWith("")); |
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320 nsItem.setTarget(nsItem); |
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321 nsItem.setAction(OS.sel_sendSelection); |
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322 } |
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323 item.nsItem = nsItem; |
45 | 324 item.createJNIRef(); |
325 item.register(); | |
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326 nsMenu.insertItem(nsItem, index); |
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327 if (itemCount is items.length) { |
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328 MenuItem [] newItems = new MenuItem [items.length + 4]; |
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329 System.arraycopy (items, 0, newItems, 0, items.length); |
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330 items = newItems; |
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331 } |
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332 System.arraycopy (items, index, items, index + 1, itemCount++ - index); |
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333 items [index] = item; |
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334 NSMenu emptyMenu = item.createEmptyMenu (); |
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335 if (emptyMenu !is null) { |
45 | 336 nsItem.setSubmenu (emptyMenu); |
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337 } |
45 | 338 //TODO - find a way to disable the menu instead of each item |
339 if (!getEnabled ()) nsItem.setEnabled (false); | |
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340 } |
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341 |
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342 void createWidget () { |
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343 checkOrientation (parent); |
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344 super.createWidget (); |
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345 items = new MenuItem [4]; |
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346 } |
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347 |
45 | 348 void deregister () { |
349 super.deregister (); | |
350 display.removeWidget (nsMenu); | |
351 } | |
352 | |
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353 void destroyItem (MenuItem item) { |
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354 int index = 0; |
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355 while (index < itemCount) { |
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356 if (items [index] is item) break; |
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357 index++; |
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358 } |
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359 if (index is itemCount) return; |
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360 System.arraycopy (items, index + 1, items, index, --itemCount - index); |
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361 items [itemCount] = null; |
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362 if (itemCount is 0) items = new MenuItem [4]; |
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363 nsMenu.removeItem (item.nsItem); |
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364 } |
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365 |
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366 void destroyWidget () { |
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367 NSMenu nsMenu = this.nsMenu; |
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368 releaseHandle (); |
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369 if (nsMenu !is null) { |
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370 nsMenu.release(); |
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371 } |
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372 } |
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373 |
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374 void fixMenus (Decorations newParent) { |
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375 this.parent = newParent; |
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376 } |
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377 |
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378 /** |
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379 * Returns the default menu item or null if none has |
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380 * been previously set. |
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381 * |
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382 * @return the default menu item. |
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383 * |
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384 * </ul> |
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385 * @exception DWTException <ul> |
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386 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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387 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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388 * </ul> |
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389 */ |
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390 public MenuItem getDefaultItem () { |
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391 checkWidget(); |
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392 return defaultItem; |
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393 } |
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394 |
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395 /** |
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396 * Returns <code>true</code> if the receiver is enabled, and |
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397 * <code>false</code> otherwise. A disabled menu is typically |
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398 * not selectable from the user interface and draws with an |
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399 * inactive or "grayed" look. |
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400 * |
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401 * @return the receiver's enabled state |
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402 * |
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403 * @exception DWTException <ul> |
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404 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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405 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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406 * </ul> |
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407 * |
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408 * @see #isEnabled |
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409 */ |
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410 public bool getEnabled () { |
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411 checkWidget(); |
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412 return (state & DISABLED) is 0; |
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413 } |
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414 |
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415 /** |
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416 * Returns the item at the given, zero-relative index in the |
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417 * receiver. Throws an exception if the index is out of range. |
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418 * |
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419 * @param index the index of the item to return |
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420 * @return the item at the given index |
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421 * |
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422 * @exception IllegalArgumentException <ul> |
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423 * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> |
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424 * </ul> |
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425 * @exception DWTException <ul> |
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426 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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427 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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428 * </ul> |
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429 */ |
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430 public MenuItem getItem (int index) { |
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431 checkWidget (); |
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432 if (!(0 <= index && index < itemCount)) error (DWT.ERROR_INVALID_RANGE); |
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433 return items [index]; |
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434 } |
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435 |
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436 /** |
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437 * Returns the number of items contained in the receiver. |
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438 * |
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439 * @return the number of items |
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440 * |
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441 * @exception DWTException <ul> |
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442 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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443 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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444 * </ul> |
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445 */ |
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446 public int getItemCount () { |
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447 checkWidget (); |
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448 return itemCount; |
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449 } |
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450 |
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451 /** |
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452 * Returns a (possibly empty) array of <code>MenuItem</code>s which |
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453 * are the items in the receiver. |
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454 * <p> |
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455 * Note: This is not the actual structure used by the receiver |
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456 * to maintain its list of items, so modifying the array will |
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457 * not affect the receiver. |
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458 * </p> |
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459 * |
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460 * @return the items in the receiver |
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461 * |
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462 * @exception DWTException <ul> |
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463 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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464 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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465 * </ul> |
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466 */ |
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467 public MenuItem [] getItems () { |
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468 checkWidget (); |
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469 MenuItem [] result = new MenuItem [itemCount]; |
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470 int index = 0; |
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471 if (items !is null) { |
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472 for (int i = 0; i < itemCount; i++) { |
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473 MenuItem item = items [i]; |
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474 if (item !is null && !item.isDisposed ()) { |
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475 result [index++] = item; |
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476 } |
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477 } |
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478 } |
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479 if (index !is result.length) { |
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480 MenuItem [] newItems = new MenuItem[index]; |
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481 System.arraycopy(result, 0, newItems, 0, index); |
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482 result = newItems; |
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483 } |
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484 return result; |
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485 } |
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486 |
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487 String getNameText () { |
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488 String result = ""; |
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489 MenuItem [] items = getItems (); |
145 | 490 size_t length_ = items.length; |
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491 if (length_ > 0) { |
145 | 492 for (size_t i=0; i<length_-1; i++) { |
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493 result = result ~ items [i].getNameText() ~ ", "; |
0
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494 } |
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495 result = result ~ items [length_-1].getNameText (); |
0
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496 } |
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497 return result; |
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498 } |
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499 |
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500 /** |
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501 * Returns the receiver's parent, which must be a <code>Decorations</code>. |
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502 * |
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503 * @return the receiver's parent |
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504 * |
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505 * @exception DWTException <ul> |
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506 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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507 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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508 * </ul> |
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509 */ |
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510 public Decorations getParent () { |
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511 checkWidget (); |
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512 return parent; |
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513 } |
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514 |
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515 /** |
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516 * Returns the receiver's parent item, which must be a |
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517 * <code>MenuItem</code> or null when the receiver is a |
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518 * root. |
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519 * |
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520 * @return the receiver's parent item |
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521 * |
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522 * @exception DWTException <ul> |
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523 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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524 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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525 * </ul> |
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526 */ |
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527 public MenuItem getParentItem () { |
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528 checkWidget (); |
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529 return cascade; |
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530 } |
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531 |
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532 /** |
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533 * Returns the receiver's parent item, which must be a |
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534 * <code>Menu</code> or null when the receiver is a |
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535 * root. |
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536 * |
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537 * @return the receiver's parent item |
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538 * |
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539 * @exception DWTException <ul> |
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540 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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541 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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542 * </ul> |
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543 */ |
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544 public Menu getParentMenu () { |
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545 checkWidget (); |
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546 if (cascade !is null) return cascade.parent; |
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547 return null; |
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548 } |
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549 |
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550 /** |
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551 * Returns the receiver's shell. For all controls other than |
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552 * shells, this simply returns the control's nearest ancestor |
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553 * shell. Shells return themselves, even if they are children |
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554 * of other shells. |
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555 * |
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556 * @return the receiver's shell |
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557 * |
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558 * @exception DWTException <ul> |
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559 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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560 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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561 * </ul> |
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562 * |
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563 * @see #getParent |
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564 */ |
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565 public Shell getShell () { |
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566 checkWidget (); |
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567 return parent.getShell (); |
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568 } |
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|
569 |
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570 /** |
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571 * Returns <code>true</code> if the receiver is visible, and |
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572 * <code>false</code> otherwise. |
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573 * <p> |
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574 * If one of the receiver's ancestors is not visible or some |
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575 * other condition makes the receiver not visible, this method |
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576 * may still indicate that it is considered visible even though |
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577 * it may not actually be showing. |
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578 * </p> |
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579 * |
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580 * @return the receiver's visibility state |
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581 * |
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582 * @exception DWTException <ul> |
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583 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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584 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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585 * </ul> |
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586 */ |
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587 public bool getVisible () { |
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588 checkWidget (); |
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589 if ((style & DWT.BAR) !is 0) { |
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590 return this is parent.menuShell ().menuBar; |
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591 } |
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|
592 if ((style & DWT.POP_UP) !is 0) { |
45 | 593 Menu [] popups = display.popups; |
594 if (popups is null) return false; | |
595 for (int i=0; i<popups.length; i++) { | |
596 if (popups [i] is this) return true; | |
597 } | |
0
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598 } |
45 | 599 return visible; |
0
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600 } |
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|
601 |
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|
602 /** |
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603 * Searches the receiver's list starting at the first item |
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604 * (index 0) until an item is found that is equal to the |
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605 * argument, and returns the index of that item. If no item |
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606 * is found, returns -1. |
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|
607 * |
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|
608 * @param item the search item |
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|
609 * @return the index of the item |
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|
610 * |
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|
611 * @exception IllegalArgumentException <ul> |
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|
612 * <li>ERROR_NULL_ARGUMENT - if the item is null</li> |
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613 * </ul> |
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|
614 * @exception DWTException <ul> |
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615 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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616 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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617 * </ul> |
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618 */ |
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619 public int indexOf (MenuItem item) { |
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620 checkWidget (); |
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621 if (item is null) error (DWT.ERROR_NULL_ARGUMENT); |
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622 for (int i=0; i<itemCount; i++) { |
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623 if (items [i] is item) return i; |
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624 } |
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625 return -1; |
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626 } |
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627 |
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628 /** |
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629 * Returns <code>true</code> if the receiver is enabled and all |
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630 * of the receiver's ancestors are enabled, and <code>false</code> |
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631 * otherwise. A disabled menu is typically not selectable from the |
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632 * user interface and draws with an inactive or "grayed" look. |
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633 * |
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634 * @return the receiver's enabled state |
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635 * |
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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 * @see #getEnabled |
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642 */ |
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643 public bool isEnabled () { |
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644 checkWidget (); |
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645 Menu parentMenu = getParentMenu (); |
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646 if (parentMenu is null) { |
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647 return getEnabled () && parent.isEnabled (); |
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648 } |
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649 return getEnabled () && parentMenu.isEnabled (); |
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650 } |
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651 |
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652 /** |
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653 * Returns <code>true</code> if the receiver is visible and all |
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654 * of the receiver's ancestors are visible and <code>false</code> |
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655 * otherwise. |
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656 * |
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657 * @return the receiver's visibility state |
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658 * |
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659 * @exception DWTException <ul> |
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660 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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661 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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662 * </ul> |
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663 * |
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664 * @see #getVisible |
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665 */ |
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666 public bool isVisible () { |
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667 checkWidget (); |
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668 return getVisible (); |
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669 } |
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670 |
45 | 671 void menu_willHighlightItem(objc.id id, objc.SEL sel, objc.id menu, objc.id itemID) { |
672 Widget widget = display.getWidget(itemID); | |
56 | 673 if (cast(MenuItem) widget) { |
674 MenuItem item = cast(MenuItem)widget; | |
45 | 675 item.sendEvent (DWT.Arm); |
676 } | |
677 } | |
678 | |
56 | 679 void menuNeedsUpdate(objc.id id, objc.SEL sel, objc.id menu) { |
45 | 680 //This code is intentionally commented |
681 //sendEvent (DWT.Show); | |
682 } | |
683 | |
56 | 684 void menuWillOpen(objc.id id, objc.SEL sel, objc.id menu) { |
45 | 685 visible = true; |
686 sendEvent (DWT.Show); | |
687 for (int i=0; i<items.length; i++) { | |
688 MenuItem item = items [i]; | |
689 if (item !is null) { | |
690 if (item.accelerator is 0) { | |
691 if (item.nsItem.keyEquivalent ().length () !is 0 || item.nsItem.keyEquivalentModifierMask () !is 0) { | |
692 item.nsItem.setHidden (false); | |
693 } | |
694 } | |
0
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695 } |
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696 } |
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697 } |
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698 |
56 | 699 void menuDidClose(objc.id id, objc.SEL sel, objc.id menu) { |
0
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700 sendEvent (DWT.Hide); |
45 | 701 visible = false; |
702 for (int i=0; i<items.length; i++) { | |
703 MenuItem item = items [i]; | |
704 if (item !is null) { | |
705 if (item.accelerator is 0) { | |
706 if (item.nsItem.keyEquivalent().length () !is 0 || item.nsItem.keyEquivalentModifierMask () !is 0) { | |
707 item.nsItem.setHidden (true); | |
708 } | |
709 } | |
710 } | |
711 } | |
0
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712 } |
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713 |
45 | 714 void register () { |
715 super.register (); | |
716 display.addWidget (nsMenu, this); | |
0
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717 } |
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718 |
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719 void releaseChildren (bool destroy) { |
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720 if (items !is null) { |
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721 for (int i=0; i<items.length; i++) { |
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722 MenuItem item = items [i]; |
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723 if (item !is null && !item.isDisposed ()) { |
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724 item.release (false); |
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725 } |
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726 } |
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727 items = null; |
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728 } |
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729 super.releaseChildren (destroy); |
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730 } |
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731 |
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732 void releaseHandle () { |
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733 super.releaseHandle (); |
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734 nsMenu = null; |
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735 } |
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736 |
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737 void releaseParent () { |
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738 super.releaseParent (); |
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739 if (cascade !is null) cascade.setMenu (null); |
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740 if ((style & DWT.BAR) !is 0 && this is parent.menuBar) { |
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741 parent.setMenuBar (null); |
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742 } |
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743 } |
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744 |
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745 void releaseWidget () { |
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746 super.releaseWidget (); |
45 | 747 display.removeMenu (this); |
0
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748 parent = null; |
45 | 749 cascade = defaultItem = null; |
0
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750 } |
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751 |
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|
752 /** |
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753 * Removes the listener from the collection of listeners who will |
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754 * be notified when the help events are generated for the control. |
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755 * |
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756 * @param listener the listener which should no longer be notified |
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757 * |
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758 * @exception IllegalArgumentException <ul> |
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759 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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760 * </ul> |
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761 * @exception DWTException <ul> |
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762 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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763 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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764 * </ul> |
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765 * |
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766 * @see HelpListener |
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767 * @see #addHelpListener |
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768 */ |
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769 public void removeHelpListener (HelpListener listener) { |
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770 checkWidget (); |
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771 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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772 if (eventTable is null) return; |
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773 eventTable.unhook (DWT.Help, listener); |
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774 } |
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775 |
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776 /** |
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777 * Removes the listener from the collection of listeners who will |
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778 * be notified when the menu events are generated for the control. |
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779 * |
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780 * @param listener the listener which should no longer be notified |
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781 * |
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782 * @exception IllegalArgumentException <ul> |
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783 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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784 * </ul> |
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785 * @exception DWTException <ul> |
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786 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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787 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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788 * </ul> |
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789 * |
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790 * @see MenuListener |
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791 * @see #addMenuListener |
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792 */ |
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793 public void removeMenuListener (MenuListener listener) { |
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794 checkWidget (); |
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795 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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796 if (eventTable is null) return; |
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797 eventTable.unhook (DWT.Hide, listener); |
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798 eventTable.unhook (DWT.Show, listener); |
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799 } |
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800 |
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801 /** |
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802 * Sets the default menu item to the argument or removes |
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803 * the default emphasis when the argument is <code>null</code>. |
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804 * |
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805 * @param item the default menu item or null |
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806 * |
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807 * @exception IllegalArgumentException <ul> |
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808 * <li>ERROR_INVALID_ARGUMENT - if the menu item has been disposed</li> |
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809 * </ul> |
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810 * @exception DWTException <ul> |
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811 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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812 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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813 * </ul> |
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814 */ |
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815 public void setDefaultItem (MenuItem item) { |
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816 checkWidget(); |
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817 if (item !is null && item.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); |
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818 defaultItem = item; |
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819 } |
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820 |
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821 /** |
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822 * Enables the receiver if the argument is <code>true</code>, |
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823 * and disables it otherwise. A disabled menu is typically |
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824 * not selectable from the user interface and draws with an |
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825 * inactive or "grayed" look. |
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826 * |
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827 * @param enabled the new enabled state |
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828 * |
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829 * @exception DWTException <ul> |
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830 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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831 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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832 * </ul> |
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833 */ |
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834 public void setEnabled (bool enabled) { |
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835 checkWidget(); |
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836 if (enabled) { |
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837 state &= ~DISABLED; |
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838 } else { |
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839 state |= DISABLED; |
45 | 840 } |
841 //TODO - find a way to disable the menu instead of each item | |
842 for (int i=0; i<items.length; i++) { | |
843 MenuItem item = items [i]; | |
844 if (item !is null) { | |
845 /* | |
846 * Feature in the Macintosh. When a cascade menu | |
847 * item is disabled, rather than disabling the item, | |
848 * the submenu is disabled. | |
849 * | |
850 * There is no fix for this at this time. | |
851 */ | |
852 item.nsItem.setEnabled (enabled && item.getEnabled ()); | |
853 } | |
0
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854 } |
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855 } |
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856 |
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|
857 /** |
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858 * Sets the location of the receiver, which must be a popup, |
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859 * to the point specified by the arguments which are relative |
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860 * to the display. |
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861 * <p> |
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862 * Note that this is different from most widgets where the |
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863 * location of the widget is relative to the parent. |
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864 * </p><p> |
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865 * Note that the platform window manager ultimately has control |
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866 * over the location of popup menus. |
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867 * </p> |
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868 * |
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869 * @param x the new x coordinate for the receiver |
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870 * @param y the new y coordinate for the receiver |
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871 * |
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872 * @exception DWTException <ul> |
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873 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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874 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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875 * </ul> |
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876 */ |
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877 public void setLocation (int x, int y) { |
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878 checkWidget (); |
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879 this.x = x; |
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880 this.y = y; |
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881 hasLocation = true; |
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882 } |
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883 |
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|
884 /** |
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885 * Sets the location of the receiver, which must be a popup, |
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886 * to the point specified by the argument which is relative |
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887 * to the display. |
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888 * <p> |
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889 * Note that this is different from most widgets where the |
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890 * location of the widget is relative to the parent. |
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891 * </p><p> |
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892 * Note that the platform window manager ultimately has control |
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893 * over the location of popup menus. |
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894 * </p> |
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|
895 * |
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896 * @param location the new location for the receiver |
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897 * |
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898 * @exception IllegalArgumentException <ul> |
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899 * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
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900 * </ul> |
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901 * @exception DWTException <ul> |
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902 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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903 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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904 * </ul> |
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905 * |
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906 * @since 2.1 |
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907 */ |
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908 public void setLocation (Point location) { |
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909 checkWidget (); |
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910 if (location is null) error (DWT.ERROR_NULL_ARGUMENT); |
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911 setLocation (location.x, location.y); |
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912 } |
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913 |
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914 /** |
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915 * Marks the receiver as visible if the argument is <code>true</code>, |
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916 * and marks it invisible otherwise. |
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917 * <p> |
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918 * If one of the receiver's ancestors is not visible or some |
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919 * other condition makes the receiver not visible, marking |
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920 * it visible may not actually cause it to be displayed. |
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921 * </p> |
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922 * |
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923 * @param visible the new visibility state |
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924 * |
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925 * @exception DWTException <ul> |
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926 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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927 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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928 * </ul> |
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929 */ |
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930 public void setVisible (bool visible) { |
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931 checkWidget (); |
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932 if ((style & (DWT.BAR | DWT.DROP_DOWN)) !is 0) return; |
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933 if (visible) { |
45 | 934 display.addPopup (this); |
0
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935 } else { |
45 | 936 display.removePopup (this); |
0
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937 } |
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938 } |
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939 |
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940 } |