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annotate dwt/widgets/TabItem.d @ 3:649b8e223d5a

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fix extends
author Frank Benoit <benoit@tionex.de>
date Wed, 27 Aug 2008 13:48:25 +0200
parents 380af2bdd8e5
children 1a8b3cb347e0
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2006 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 *******************************************************************************/
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11 module dwt.widgets.TabItem;
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12
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13 import dwt.dwthelper.utils;
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14
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15
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16 import dwt.DWT;
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17 import dwt.DWTException;
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18 import dwt.graphics.Image;
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19 import dwt.graphics.Rectangle;
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20 import dwt.internal.cocoa.NSPoint;
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21 import dwt.internal.cocoa.NSSize;
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22 import dwt.internal.cocoa.NSString;
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23 import dwt.internal.cocoa.NSTabViewItem;
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24 import dwt.internal.cocoa.NSValue;
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25 import dwt.internal.cocoa.NSWindow;
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26 import dwt.internal.cocoa.OS;
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27
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28 /**
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29 * Instances of this class represent a selectable user interface object
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30 * corresponding to a tab for a page in a tab folder.
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31 * <dl>
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32 * <dt><b>Styles:</b></dt>
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33 * <dd>(none)</dd>
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34 * <dt><b>Events:</b></dt>
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35 * <dd>(none)</dd>
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36 * </dl>
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37 * <p>
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38 * IMPORTANT: This class is <em>not</em> intended to be subclassed.
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39 * </p>
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40 */
3
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41 public class TabItem : Item {
0
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42 TabFolder parent;
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43 Control control;
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44 String toolTipText;
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45 NSTabViewItem nsItem;
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46
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47 /**
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48 * Constructs a new instance of this class given its parent
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49 * (which must be a <code>TabFolder</code>) and a style value
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50 * describing its behavior and appearance. The item is added
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51 * to the end of the items maintained by its parent.
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52 * <p>
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53 * The style value is either one of the style constants defined in
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54 * class <code>DWT</code> which is applicable to instances of this
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55 * class, or must be built by <em>bitwise OR</em>'ing together
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56 * (that is, using the <code>int</code> "|" operator) two or more
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57 * of those <code>DWT</code> style constants. The class description
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58 * lists the style constants that are applicable to the class.
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59 * Style bits are also inherited from superclasses.
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60 * </p>
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61 *
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62 * @param parent a composite control which will be the parent of the new instance (cannot be null)
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63 * @param style the style of control to construct
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64 *
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65 * @exception IllegalArgumentException <ul>
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66 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
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67 * </ul>
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68 * @exception DWTException <ul>
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69 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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70 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
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71 * </ul>
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72 *
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73 * @see DWT
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74 * @see Widget#checkSubclass
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75 * @see Widget#getStyle
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76 */
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77 public TabItem (TabFolder parent, int style) {
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78 super (parent, style);
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79 this.parent = parent;
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80 parent.createItem (this, parent.getItemCount ());
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81 }
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82
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83 /**
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84 * Constructs a new instance of this class given its parent
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85 * (which must be a <code>TabFolder</code>), a style value
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86 * describing its behavior and appearance, and the index
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87 * at which to place it in the items maintained by its parent.
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88 * <p>
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89 * The style value is either one of the style constants defined in
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90 * class <code>DWT</code> which is applicable to instances of this
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91 * class, or must be built by <em>bitwise OR</em>'ing together
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92 * (that is, using the <code>int</code> "|" operator) two or more
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93 * of those <code>DWT</code> style constants. The class description
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94 * lists the style constants that are applicable to the class.
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95 * Style bits are also inherited from superclasses.
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96 * </p>
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97 *
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98 * @param parent a composite control which will be the parent of the new instance (cannot be null)
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99 * @param style the style of control to construct
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100 * @param index the zero-relative index to store the receiver in its parent
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101 *
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102 * @exception IllegalArgumentException <ul>
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103 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
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104 * <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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105 * </ul>
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106 * @exception DWTException <ul>
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107 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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108 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
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109 * </ul>
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110 *
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111 * @see DWT
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112 * @see Widget#checkSubclass
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113 * @see Widget#getStyle
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114 */
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115 public TabItem (TabFolder parent, int style, int index) {
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116 super (parent, style);
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117 this.parent = parent;
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118 parent.createItem (this, index);
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119 }
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120
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121 protected void checkSubclass () {
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122 if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS);
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123 }
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124
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125 void destroyWidget () {
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126 parent.destroyItem (this);
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127 releaseHandle ();
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128 }
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129
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130 /**
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131 * Returns a rectangle describing the receiver's size and location
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132 * relative to its parent.
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133 *
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134 * @return the receiver's bounding rectangle
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135 *
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136 * @exception DWTException <ul>
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137 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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138 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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139 * </ul>
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140 *
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141 * @since 3.4
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142 */
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143 public Rectangle getBounds() {
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144 checkWidget();
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145 Rectangle result = new Rectangle (0, 0, 0, 0);
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146 if (nsItem.respondsToSelector (OS.sel_accessibilityAttributeValue_1)) {
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147 int posValue = OS.objc_msgSend (nsItem.id, OS.sel_accessibilityAttributeValue_1, OS.NSAccessibilityPositionAttribute ());
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148 int sizeValue = OS.objc_msgSend (nsItem.id, OS.sel_accessibilityAttributeValue_1, OS.NSAccessibilitySizeAttribute ());
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149 NSValue val = new NSValue (posValue);
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150 NSPoint pt = val.pointValue ();
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151 NSWindow window = parent.view.window ();
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152 pt.y = window.screen ().frame ().height - pt.y;
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153 pt = parent.view.convertPoint_fromView_ (pt, null);
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154 pt = window.convertScreenToBase (pt);
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155 result.x = (int) pt.x;
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156 result.y = (int) pt.y;
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157 val = new NSValue (sizeValue);
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158 NSSize size = val.sizeValue ();
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159 result.width = (int) size.width;
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160 result.height = (int) size.height;
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161 }
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162 return result;
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163 }
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164
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165 /**
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166 * Returns the control that is used to fill the client area of
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167 * the tab folder when the user selects the tab item. If no
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168 * control has been set, return <code>null</code>.
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169 * <p>
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170 * @return the control
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171 *
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172 * @exception DWTException <ul>
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173 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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174 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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175 * </ul>
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176 */
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177 public Control getControl () {
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178 checkWidget ();
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179 return control;
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180 }
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181
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182 /**
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183 * Returns the receiver's parent, which must be a <code>TabFolder</code>.
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184 *
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185 * @return the receiver's parent
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186 *
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187 * @exception DWTException <ul>
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188 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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189 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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190 * </ul>
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191 */
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192 public TabFolder getParent () {
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193 checkWidget ();
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194 return parent;
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195 }
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196
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197 /**
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198 * Returns the receiver's tool tip text, or null if it has
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parents:
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199 * not been set.
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parents:
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200 *
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parents:
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201 * @return the receiver's tool tip text
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parents:
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202 *
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parents:
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203 * @exception DWTException <ul>
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parents:
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204 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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parents:
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205 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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206 * </ul>
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207 */
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208 public String getToolTipText () {
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parents:
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209 checkWidget ();
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parents:
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210 return toolTipText;
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parents:
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211 }
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parents:
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212
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213 void releaseHandle () {
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214 super.releaseHandle ();
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parents:
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215 if (nsItem !is null) nsItem.release();
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parents:
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216 nsItem = null;
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217 parent = null;
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parents:
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218 }
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parents:
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219
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parents:
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220 void releaseParent () {
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parents:
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221 super.releaseParent ();
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222 int index = parent.indexOf (this);
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223 if (index is parent.getSelectionIndex ()) {
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parents:
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224 if (control !is null) control.setVisible (false);
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225 }
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226 }
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227
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228 void releaseWidget () {
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229 super.releaseWidget ();
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230 control = null;
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231 }
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232
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233 /**
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234 * Sets the control that is used to fill the client area of
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235 * the tab folder when the user selects the tab item.
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parents:
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236 * <p>
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237 * @param control the new control (or null)
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parents:
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238 *
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parents:
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239 * @exception IllegalArgumentException <ul>
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240 * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li>
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241 * <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree</li>
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242 * </ul>
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243 * @exception DWTException <ul>
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parents:
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244 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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245 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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246 * </ul>
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247 */
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248 public void setControl (Control control) {
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249 checkWidget ();
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250 if (control !is null) {
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251 if (control.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT);
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252 if (control.parent !is parent) error (DWT.ERROR_INVALID_PARENT);
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253 }
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254 if (this.control !is null && this.control.isDisposed ()) {
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255 this.control = null;
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256 }
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257 Control oldControl = this.control, newControl = control;
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258 this.control = control;
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259 int index = parent.indexOf (this);
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260 if (index !is parent.getSelectionIndex ()) {
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261 if (newControl !is null) newControl.setVisible (false);
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262 return;
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263 }
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264 if (newControl !is null) {
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265 // nsItem.setView(control.topView ());
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266 newControl.setBounds (parent.getClientArea ());
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267 newControl.setVisible (true);
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268 }
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269 if (oldControl !is null) oldControl.setVisible (false);
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270 }
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271
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272 public void setImage (Image image) {
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273 checkWidget ();
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274 int index = parent.indexOf (this);
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275 if (index is -1) return;
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276 super.setImage (image);
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277 }
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278
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279 /**
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280 * Sets the receiver's text. The string may include
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281 * the mnemonic character.
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parents:
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282 * </p>
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283 * <p>
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284 * Mnemonics are indicated by an '&amp;' that causes the next
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parents:
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285 * character to be the mnemonic. When the user presses a
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parents:
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286 * key sequence that matches the mnemonic, a selection
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parents:
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287 * event occurs. On most platforms, the mnemonic appears
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parents:
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288 * underlined but may be emphasised in a platform specific
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parents:
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289 * manner. The mnemonic indicator character '&amp;' can be
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parents:
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290 * escaped by doubling it in the string, causing a single
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parents:
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291 * '&amp;' to be displayed.
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parents:
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292 * </p>
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parents:
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293 *
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294 * @param string the new text
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parents:
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295 *
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parents:
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296 * @exception IllegalArgumentException <ul>
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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297 * <li>ERROR_NULL_ARGUMENT - if the text is null</li>
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parents:
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298 * </ul>
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parents:
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299 * @exception DWTException <ul>
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parents:
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300 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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parents:
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301 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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parents:
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302 * </ul>
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parents:
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303 *
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parents:
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304 */
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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305 public void setText (String string) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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306 checkWidget ();
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parents:
diff changeset
307 if (string is null) error (DWT.ERROR_NULL_ARGUMENT);
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308 int index = parent.indexOf (this);
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309 if (index is -1) return;
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parents:
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310 super.setText (string);
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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311 char [] chars = new char [string.length ()];
380af2bdd8e5 Upload of whole dwt tree
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parents:
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312 string.getChars (0, chars.length, chars, 0);
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313 int length = fixMnemonic (chars);
380af2bdd8e5 Upload of whole dwt tree
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314 NSString str = NSString.stringWithCharacters (chars, length);
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parents:
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315 nsItem.setLabel (str);
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316 }
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parents:
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317
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318 /**
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parents:
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319 * Sets the receiver's tool tip text to the argument, which
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parents:
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320 * may be null indicating that no tool tip text should be shown.
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parents:
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321 *
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parents:
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322 * @param string the new tool tip text (or null)
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parents:
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323 *
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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324 * @exception DWTException <ul>
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parents:
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325 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
326 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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327 * </ul>
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parents:
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328 */
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
329 public void setToolTipText (String string) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
330 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
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parents:
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331 toolTipText = string;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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332 }
380af2bdd8e5 Upload of whole dwt tree
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parents:
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333
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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334 void update () {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
335 setText (text);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
336 setImage (image);
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
337 setToolTipText (toolTipText);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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338 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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339
380af2bdd8e5 Upload of whole dwt tree
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parents:
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340 }