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annotate dwt/widgets/TabItem.d @ 130:3d4579727e0e

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Fixes #2 and #3
author Jacob Carlborg <doob@me.com>
date Tue, 10 Feb 2009 21:01:24 +0100
parents 63a09873578e
children
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1 /*******************************************************************************
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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:
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12 * Jacob Carlborg <doob@me.com>
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13 *******************************************************************************/
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14 module dwt.widgets.TabItem;
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15
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16 import dwt.dwthelper.utils;
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17
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18
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19 import dwt.DWT;
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20 import dwt.DWTException;
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21 import dwt.graphics.Image;
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22 import dwt.graphics.Rectangle;
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23 import dwt.internal.cocoa.NSPoint;
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24 import dwt.internal.cocoa.NSRect;
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25 import dwt.internal.cocoa.NSSize;
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26 import dwt.internal.cocoa.NSString;
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27 import dwt.internal.cocoa.NSTabViewItem;
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28 import dwt.internal.cocoa.NSValue;
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29 import dwt.internal.cocoa.NSView;
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30 import dwt.internal.cocoa.NSWindow;
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31 import dwt.internal.cocoa.OS;
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32
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33 import objc = dwt.internal.objc.runtime;
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34 import dwt.widgets.Control;
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35 import dwt.widgets.Item;
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36 import dwt.widgets.TabFolder;
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37
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38 /**
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39 * Instances of this class represent a selectable user interface object
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40 * corresponding to a tab for a page in a tab folder.
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41 * <dl>
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42 * <dt><b>Styles:</b></dt>
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43 * <dd>(none)</dd>
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44 * <dt><b>Events:</b></dt>
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45 * <dd>(none)</dd>
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46 * </dl>
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47 * <p>
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48 * IMPORTANT: This class is <em>not</em> intended to be subclassed.
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49 * </p>
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50 *
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51 * @see <a href="http://www.eclipse.org/swt/snippets/#tabfolder">TabFolder, TabItem snippets</a>
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52 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
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53 */
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54 public class TabItem : Item {
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55 TabFolder parent;
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56 Control control;
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57 String toolTipText;
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58 NSTabViewItem nsItem;
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59
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60 /**
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61 * Constructs a new instance of this class given its parent
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62 * (which must be a <code>TabFolder</code>) and a style value
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63 * describing its behavior and appearance. The item is added
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64 * to the end of the items maintained by its parent.
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65 * <p>
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66 * The style value is either one of the style constants defined in
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67 * class <code>DWT</code> which is applicable to instances of this
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68 * class, or must be built by <em>bitwise OR</em>'ing together
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69 * (that is, using the <code>int</code> "|" operator) two or more
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70 * of those <code>DWT</code> style constants. The class description
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71 * lists the style constants that are applicable to the class.
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72 * Style bits are also inherited from superclasses.
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73 * </p>
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74 *
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75 * @param parent a composite control which will be the parent of the new instance (cannot be null)
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76 * @param style the style of control to construct
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77 *
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78 * @exception IllegalArgumentException <ul>
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79 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
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80 * </ul>
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81 * @exception DWTException <ul>
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82 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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83 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
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84 * </ul>
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85 *
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86 * @see DWT
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87 * @see Widget#checkSubclass
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88 * @see Widget#getStyle
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89 */
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90 public this (TabFolder parent, int style) {
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91 super (parent, style);
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92 this.parent = parent;
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93 parent.createItem (this, parent.getItemCount ());
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94 }
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95
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96 /**
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97 * Constructs a new instance of this class given its parent
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98 * (which must be a <code>TabFolder</code>), a style value
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99 * describing its behavior and appearance, and the index
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100 * at which to place it in the items maintained by its parent.
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101 * <p>
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102 * The style value is either one of the style constants defined in
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103 * class <code>DWT</code> which is applicable to instances of this
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104 * class, or must be built by <em>bitwise OR</em>'ing together
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105 * (that is, using the <code>int</code> "|" operator) two or more
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106 * of those <code>DWT</code> style constants. The class description
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107 * lists the style constants that are applicable to the class.
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108 * Style bits are also inherited from superclasses.
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109 * </p>
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110 *
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111 * @param parent a composite control which will be the parent of the new instance (cannot be null)
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112 * @param style the style of control to construct
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113 * @param index the zero-relative index to store the receiver in its parent
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114 *
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115 * @exception IllegalArgumentException <ul>
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116 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
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117 * <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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118 * </ul>
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119 * @exception DWTException <ul>
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120 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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121 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
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122 * </ul>
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123 *
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124 * @see DWT
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125 * @see Widget#checkSubclass
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126 * @see Widget#getStyle
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127 */
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128 public this (TabFolder parent, int style, int index) {
0
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129 super (parent, style);
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130 this.parent = parent;
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131 parent.createItem (this, index);
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132 }
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133
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134 protected void checkSubclass () {
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135 if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS);
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136 }
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137
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138 void destroyWidget () {
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139 parent.destroyItem (this);
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140 releaseHandle ();
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141 }
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142
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143 /**
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144 * Returns a rectangle describing the receiver's size and location
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145 * relative to its parent.
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146 *
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147 * @return the receiver's bounding rectangle
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148 *
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149 * @exception DWTException <ul>
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150 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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151 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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152 * </ul>
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153 *
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154 * @since 3.4
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155 */
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156 public Rectangle getBounds() {
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157 checkWidget();
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158 Rectangle result = new Rectangle (0, 0, 0, 0);
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159 if (nsItem.respondsToSelector (OS.sel_accessibilityAttributeValue_)) {
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160 objc.id posValue = OS.objc_msgSend (nsItem.id, OS.sel_accessibilityAttributeValue_, OS.NSAccessibilityPositionAttribute_);
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161 objc.id sizeValue = OS.objc_msgSend (nsItem.id, OS.sel_accessibilityAttributeValue_, OS.NSAccessibilitySizeAttribute_);
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162 NSValue val = new NSValue (posValue);
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163 NSPoint pt = val.pointValue ();
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164 NSWindow window = parent.view.window ();
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165 pt.y = display.getPrimaryFrame().height - pt.y;
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166 pt = parent.view.convertPoint_fromView_ (pt, null);
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167 pt = window.convertScreenToBase (pt);
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168 result.x = cast(int) pt.x;
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169 result.y = cast(int) pt.y;
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170 val = new NSValue (sizeValue);
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171 NSSize size = val.sizeValue ();
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172 result.width = cast(int) Math.ceil (size.width);
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173 result.height = cast(int) Math.ceil (size.height);
0
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174 }
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175 return result;
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176 }
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177
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178 /**
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179 * Returns the control that is used to fill the client area of
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180 * the tab folder when the user selects the tab item. If no
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181 * control has been set, return <code>null</code>.
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182 * <p>
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183 * @return the control
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184 *
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185 * @exception DWTException <ul>
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186 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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187 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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188 * </ul>
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189 */
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190 public Control getControl () {
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191 checkWidget ();
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192 return control;
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193 }
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194
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195 /**
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196 * Returns the receiver's parent, which must be a <code>TabFolder</code>.
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197 *
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198 * @return the receiver's parent
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199 *
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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 public TabFolder getParent () {
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206 checkWidget ();
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207 return parent;
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208 }
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209
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210 /**
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211 * Returns the receiver's tool tip text, or null if it has
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212 * not been set.
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213 *
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214 * @return the receiver's tool tip text
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215 *
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216 * @exception DWTException <ul>
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217 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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218 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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219 * </ul>
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220 */
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221 public String getToolTipText () {
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222 checkWidget ();
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223 return toolTipText;
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224 }
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225
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226 void releaseHandle () {
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227 super.releaseHandle ();
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228 if (nsItem !is null) nsItem.release();
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229 nsItem = null;
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230 parent = null;
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231 }
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232
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233 void releaseParent () {
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234 super.releaseParent ();
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235 int index = parent.indexOf (this);
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236 if (index is parent.getSelectionIndex ()) {
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237 if (control !is null) control.setVisible (false);
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238 }
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239 }
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240
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241 void releaseWidget () {
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242 super.releaseWidget ();
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243 control = null;
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244 }
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245
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246 /**
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247 * Sets the control that is used to fill the client area of
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248 * the tab folder when the user selects the tab item.
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249 * <p>
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250 * @param control the new control (or null)
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251 *
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252 * @exception IllegalArgumentException <ul>
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253 * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li>
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254 * <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree</li>
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255 * </ul>
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256 * @exception DWTException <ul>
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257 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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258 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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259 * </ul>
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260 */
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261 public void setControl (Control control) {
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262 checkWidget ();
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263 if (control !is null) {
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264 if (control.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT);
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265 if (control.parent !is parent) error (DWT.ERROR_INVALID_PARENT);
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266 }
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267 if (this.control !is null && this.control.isDisposed ()) {
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268 this.control = null;
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269 }
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270 Control oldControl = this.control, newControl = control;
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271 this.control = control;
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272 int index = parent.indexOf (this);
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273 if (index !is parent.getSelectionIndex ()) {
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274 if (newControl !is null) newControl.setVisible (false);
45
d8635bb48c7c Merge with SWT 3.5
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275 } else {
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276 if (newControl !is null) {
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277 newControl.setVisible (true);
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278 }
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279 if (oldControl !is null) oldControl.setVisible (false);
0
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280 }
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281 NSView view;
0
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282 if (newControl !is null) {
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283 view = newControl.topView();
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284 } else {
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285 view = cast(NSView)(new NSView()).alloc();
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286 view.initWithFrame (NSRect());
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287 view.autorelease();
0
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288 }
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289 nsItem.setView (view);
0
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290 }
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291
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292 public void setImage (Image image) {
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293 checkWidget ();
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294 int index = parent.indexOf (this);
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295 if (index is -1) return;
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296 super.setImage (image);
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297 }
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298
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299 /**
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300 * Sets the receiver's text. The string may include
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301 * the mnemonic character.
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302 * </p>
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303 * <p>
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304 * Mnemonics are indicated by an '&amp;' that causes the next
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305 * character to be the mnemonic. When the user presses a
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306 * key sequence that matches the mnemonic, a selection
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307 * event occurs. On most platforms, the mnemonic appears
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308 * underlined but may be emphasised in a platform specific
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309 * manner. The mnemonic indicator character '&amp;' can be
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310 * escaped by doubling it in the string, causing a single
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311 * '&amp;' to be displayed.
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312 * </p>
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313 *
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314 * @param string the new text
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315 *
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316 * @exception IllegalArgumentException <ul>
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317 * <li>ERROR_NULL_ARGUMENT - if the text is null</li>
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318 * </ul>
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319 * @exception DWTException <ul>
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320 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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parents:
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321 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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322 * </ul>
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323 *
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324 */
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325 public void setText (String string) {
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326 checkWidget ();
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327 if (string is null) error (DWT.ERROR_NULL_ARGUMENT);
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328 int index = parent.indexOf (this);
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329 if (index is -1) return;
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330 super.setText (string);
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331 char [] chars = new char [string.length ()];
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332 string.getChars (0, chars.length, chars, 0);
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333 int length = fixMnemonic (chars);
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diff changeset
334 NSString str = NSString.stringWithCharacters (chars.toString16().ptr, length);
0
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335 nsItem.setLabel (str);
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336 }
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337
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338 /**
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339 * Sets the receiver's tool tip text to the argument, which
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340 * may be null indicating that no tool tip text should be shown.
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341 *
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342 * @param string the new tool tip text (or null)
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343 *
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344 * @exception DWTException <ul>
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345 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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346 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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347 * </ul>
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348 */
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349 public void setToolTipText (String string) {
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350 checkWidget();
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351 toolTipText = string;
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352 }
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353
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354 void update () {
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355 setText (text);
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356 setImage (image);
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357 setToolTipText (toolTipText);
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358 }
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359
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360 }