Mercurial > projects > dwt-mac
annotate dwt/widgets/TreeColumn.d @ 3:649b8e223d5a
fix extends
author | Frank Benoit <benoit@tionex.de> |
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date | Wed, 27 Aug 2008 13:48:25 +0200 |
parents | 380af2bdd8e5 |
children | 1a8b3cb347e0 |
rev | line source |
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0
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1 /******************************************************************************* |
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2 * Copyright (c) 2000, 2007 IBM Corporation and others. |
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3 * All rights reserved. This program and the accompanying materials |
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4 * are made available under the terms of the Eclipse Public License v1.0 |
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5 * which accompanies this distribution, and is available at |
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6 * http://www.eclipse.org/legal/epl-v10.html |
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7 * |
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8 * Contributors: |
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9 * IBM Corporation - initial API and implementation |
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10 *******************************************************************************/ |
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11 module dwt.widgets.TreeColumn; |
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12 |
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13 import dwt.dwthelper.utils; |
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14 |
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15 |
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16 import dwt.DWT; |
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17 import dwt.DWTException; |
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18 import dwt.events.ControlListener; |
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19 import dwt.events.SelectionEvent; |
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20 import dwt.events.SelectionListener; |
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21 import dwt.graphics.Image; |
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22 import dwt.internal.cocoa.NSString; |
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23 import dwt.internal.cocoa.NSTableColumn; |
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24 import dwt.internal.cocoa.OS; |
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25 |
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26 /** |
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27 * Instances of this class represent a column in a tree widget. |
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28 * <p><dl> |
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29 * <dt><b>Styles:</b></dt> |
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30 * <dd>LEFT, RIGHT, CENTER</dd> |
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31 * <dt><b>Events:</b></dt> |
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32 * <dd> Move, Resize, Selection</dd> |
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33 * </dl> |
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34 * </p><p> |
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35 * Note: Only one of the styles LEFT, RIGHT and CENTER may be specified. |
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36 * </p><p> |
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37 * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
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38 * </p> |
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39 * |
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40 * @since 3.1 |
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41 */ |
3 | 42 public class TreeColumn : Item { |
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43 NSTableColumn nsColumn; |
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44 Tree parent; |
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45 String toolTipText; |
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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>Tree</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#LEFT |
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74 * @see DWT#RIGHT |
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75 * @see DWT#CENTER |
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76 * @see Widget#checkSubclass |
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77 * @see Widget#getStyle |
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78 */ |
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79 public TreeColumn (Tree parent, int style) { |
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80 super (parent, checkStyle (style)); |
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81 this.parent = parent; |
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82 parent.createItem (this, parent.getColumnCount ()); |
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83 } |
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84 |
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85 /** |
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86 * Constructs a new instance of this class given its parent |
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87 * (which must be a <code>Tree</code>), a style value |
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88 * describing its behavior and appearance, and the index |
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89 * at which to place it in the items maintained by its parent. |
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90 * <p> |
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91 * The style value is either one of the style constants defined in |
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92 * class <code>DWT</code> which is applicable to instances of this |
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93 * class, or must be built by <em>bitwise OR</em>'ing together |
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94 * (that is, using the <code>int</code> "|" operator) two or more |
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95 * of those <code>DWT</code> style constants. The class description |
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96 * lists the style constants that are applicable to the class. |
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97 * Style bits are also inherited from superclasses. |
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98 * </p> |
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99 * |
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100 * @param parent a composite control which will be the parent of the new instance (cannot be null) |
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101 * @param style the style of control to construct |
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102 * @param index the zero-relative index to store the receiver in its parent |
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103 * |
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104 * @exception IllegalArgumentException <ul> |
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105 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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106 * <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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107 * </ul> |
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108 * @exception DWTException <ul> |
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109 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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110 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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111 * </ul> |
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112 * |
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113 * @see DWT#LEFT |
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114 * @see DWT#RIGHT |
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115 * @see DWT#CENTER |
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116 * @see Widget#checkSubclass |
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117 * @see Widget#getStyle |
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118 */ |
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119 public TreeColumn (Tree parent, int style, int index) { |
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120 super (parent, checkStyle (style)); |
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121 this.parent = parent; |
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122 parent.createItem (this, index); |
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123 } |
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124 |
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125 /** |
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126 * Adds the listener to the collection of listeners who will |
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127 * be notified when the control is moved or resized, by sending |
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128 * it one of the messages defined in the <code>ControlListener</code> |
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129 * interface. |
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130 * |
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131 * @param listener the listener which should be notified |
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132 * |
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133 * @exception IllegalArgumentException <ul> |
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134 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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135 * </ul> |
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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 * @see ControlListener |
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142 * @see #removeControlListener |
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143 */ |
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144 public void addControlListener(ControlListener listener) { |
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145 checkWidget (); |
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146 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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147 TypedListener typedListener = new TypedListener (listener); |
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148 addListener (DWT.Resize,typedListener); |
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149 addListener (DWT.Move,typedListener); |
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150 } |
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151 |
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152 /** |
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153 * Adds the listener to the collection of listeners who will |
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154 * be notified when the control is selected by the user, by sending |
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155 * it one of the messages defined in the <code>SelectionListener</code> |
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156 * interface. |
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157 * <p> |
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158 * <code>widgetSelected</code> is called when the column header is selected. |
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159 * <code>widgetDefaultSelected</code> is not called. |
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160 * </p> |
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161 * |
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162 * @param listener the listener which should be notified when the control is selected by the user |
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163 * |
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164 * @exception IllegalArgumentException <ul> |
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165 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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166 * </ul> |
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167 * @exception DWTException <ul> |
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168 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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169 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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170 * </ul> |
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171 * |
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172 * @see SelectionListener |
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173 * @see #removeSelectionListener |
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174 * @see SelectionEvent |
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175 */ |
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176 public void addSelectionListener (SelectionListener listener) { |
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177 checkWidget (); |
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178 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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179 TypedListener typedListener = new TypedListener (listener); |
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180 addListener (DWT.Selection,typedListener); |
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181 addListener (DWT.DefaultSelection,typedListener); |
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182 } |
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183 |
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184 static int checkStyle (int style) { |
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185 return checkBits (style, DWT.LEFT, DWT.CENTER, DWT.RIGHT, 0, 0, 0); |
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186 } |
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187 |
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188 protected void checkSubclass () { |
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189 if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); |
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190 } |
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191 |
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192 void destroyWidget () { |
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193 parent.destroyItem (this); |
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194 releaseHandle (); |
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195 } |
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196 |
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197 /** |
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198 * Returns a value which describes the position of the |
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199 * text or image in the receiver. The value will be one of |
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200 * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code>. |
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201 * |
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202 * @return the alignment |
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203 * |
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204 * @exception DWTException <ul> |
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205 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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206 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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207 * </ul> |
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208 */ |
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209 public int getAlignment () { |
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210 checkWidget (); |
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211 if ((style & DWT.LEFT) !is 0) return DWT.LEFT; |
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212 if ((style & DWT.CENTER) !is 0) return DWT.CENTER; |
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213 if ((style & DWT.RIGHT) !is 0) return DWT.RIGHT; |
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214 return DWT.LEFT; |
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215 } |
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216 |
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217 String getNameText () { |
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218 return getText (); |
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219 } |
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220 |
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221 /** |
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222 * Returns the receiver's parent, which must be a <code>Tree</code>. |
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223 * |
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224 * @return the receiver's parent |
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225 * |
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226 * @exception DWTException <ul> |
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227 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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228 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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229 * </ul> |
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230 */ |
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231 public Tree getParent () { |
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232 checkWidget (); |
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233 return parent; |
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234 } |
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235 |
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236 /** |
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237 * Gets the moveable attribute. A column that is |
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238 * not moveable cannot be reordered by the user |
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239 * by dragging the header but may be reordered |
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240 * by the programmer. |
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241 * |
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242 * @return the moveable attribute |
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243 * |
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244 * @exception DWTException <ul> |
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245 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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246 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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247 * </ul> |
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248 * |
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249 * @see Tree#getColumnOrder() |
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250 * @see Tree#setColumnOrder(int[]) |
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251 * @see TreeColumn#setMoveable(bool) |
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252 * @see DWT#Move |
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253 * |
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254 * @since 3.2 |
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255 */ |
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256 public bool getMoveable () { |
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257 checkWidget (); |
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258 // int [] flags = new int [1]; |
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259 // OS.GetDataBrowserPropertyFlags (parent.handle, id, flags); |
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260 // return (flags [0] & OS.kDataBrowserListViewMovableColumn) !is 0; |
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261 return false; |
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262 } |
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263 |
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264 /** |
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265 * Gets the resizable attribute. A column that is |
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266 * not resizable cannot be dragged by the user but |
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267 * may be resized by the programmer. |
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268 * |
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269 * @return the resizable attribute |
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270 * |
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271 * @exception DWTException <ul> |
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272 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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273 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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274 * </ul> |
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275 */ |
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276 public bool getResizable () { |
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277 checkWidget (); |
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278 return nsColumn.resizingMask() !is OS.NSTableColumnNoResizing; |
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279 } |
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280 |
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281 /** |
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282 * Returns the receiver's tool tip text, or null if it has |
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283 * not been set. |
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284 * |
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285 * @return the receiver's tool tip text |
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286 * |
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287 * @exception DWTException <ul> |
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288 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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289 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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290 * </ul> |
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291 * |
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292 * @since 3.2 |
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293 */ |
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294 public String getToolTipText () { |
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295 checkWidget (); |
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296 return toolTipText; |
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297 } |
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298 |
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299 /** |
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300 * Gets the width of the receiver. |
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301 * |
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302 * @return the width |
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303 * |
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304 * @exception DWTException <ul> |
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305 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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306 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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307 * </ul> |
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308 */ |
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309 public int getWidth () { |
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310 checkWidget (); |
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311 return (int)nsColumn.width(); |
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312 } |
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313 |
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314 /** |
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315 * Causes the receiver to be resized to its preferred size. |
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316 * For a composite, this involves computing the preferred size |
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317 * from its layout, if there is one. |
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318 * |
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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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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 pack () { |
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326 checkWidget (); |
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327 // GC gc = new GC (parent); |
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328 // int width = gc.stringExtent (text).x; |
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329 //TODO extra header |
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330 // int index = parent.indexOf (this); |
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331 // width = Math.max (width, calculateWidth (parent.childIds, index, gc, width)); |
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332 // |
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333 // gc.dispose (); |
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334 // setWidth (width + parent.getInsetWidth (id, true)); |
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335 //TODO this only takes care of the header |
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336 nsColumn.sizeToFit(); |
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337 } |
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338 |
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339 void releaseHandle () { |
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340 super.releaseHandle (); |
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341 if (nsColumn !is null) nsColumn.release(); |
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342 nsColumn = null; |
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343 parent = null; |
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344 } |
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345 |
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346 void releaseWidget () { |
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347 super.releaseWidget (); |
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348 if (parent.sortColumn is this) { |
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349 parent.sortColumn = null; |
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350 } |
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351 } |
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352 |
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353 /** |
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354 * Removes the listener from the collection of listeners who will |
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355 * be notified when the control is moved or resized. |
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356 * |
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357 * @param listener the listener which should no longer be notified |
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358 * |
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359 * @exception IllegalArgumentException <ul> |
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360 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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361 * </ul> |
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362 * @exception DWTException <ul> |
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363 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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364 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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365 * </ul> |
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366 * |
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367 * @see ControlListener |
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368 * @see #addControlListener |
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369 */ |
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370 public void removeControlListener (ControlListener listener) { |
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371 checkWidget (); |
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372 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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373 if (eventTable is null) return; |
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374 eventTable.unhook (DWT.Move, listener); |
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375 eventTable.unhook (DWT.Resize, listener); |
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376 } |
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377 |
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378 /** |
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379 * Removes the listener from the collection of listeners who will |
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380 * be notified when the control is selected by the user. |
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381 * |
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382 * @param listener the listener which should no longer be notified |
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383 * |
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384 * @exception IllegalArgumentException <ul> |
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385 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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386 * </ul> |
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387 * @exception DWTException <ul> |
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388 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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389 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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390 * </ul> |
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391 * |
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392 * @see SelectionListener |
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393 * @see #addSelectionListener |
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394 */ |
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395 public void removeSelectionListener(SelectionListener listener) { |
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396 checkWidget (); |
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397 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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398 if (eventTable is null) return; |
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399 eventTable.unhook (DWT.Selection, listener); |
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400 eventTable.unhook (DWT.DefaultSelection,listener); |
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401 } |
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402 |
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403 /** |
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404 * Controls how text and images will be displayed in the receiver. |
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405 * The argument should be one of <code>LEFT</code>, <code>RIGHT</code> |
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406 * or <code>CENTER</code>. |
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407 * |
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408 * @param alignment the new alignment |
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409 * |
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410 * @exception DWTException <ul> |
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411 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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412 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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413 * </ul> |
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414 */ |
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415 public void setAlignment (int alignment) { |
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416 checkWidget (); |
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417 if ((alignment & (DWT.LEFT | DWT.RIGHT | DWT.CENTER)) is 0) return; |
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418 int index = parent.indexOf (this); |
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419 if (index is -1 || index is 0) return; |
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420 style &= ~(DWT.LEFT | DWT.RIGHT | DWT.CENTER); |
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421 style |= alignment & (DWT.LEFT | DWT.RIGHT | DWT.CENTER); |
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422 //TODO |
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423 } |
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424 |
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425 public void setImage (Image image) { |
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426 checkWidget(); |
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427 if (image !is null && image.isDisposed ()) { |
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428 error (DWT.ERROR_INVALID_ARGUMENT); |
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429 } |
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430 // int index = parent.indexOf (this); |
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431 // if (index is -1) return; |
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432 // if (iconRef !is 0) { |
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433 // OS.ReleaseIconRef (iconRef); |
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434 // iconRef = 0; |
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435 // } |
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436 // super.setImage (image); |
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437 // if (image !is null) { |
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438 // if (OS.VERSION < 0x1040) { |
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439 // iconRef = createIconRef (image); |
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440 // } |
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441 // } |
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442 // updateHeader (); |
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443 } |
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444 |
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445 /** |
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446 * Sets the moveable attribute. A column that is |
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447 * moveable can be reordered by the user by dragging |
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448 * the header. A column that is not moveable cannot be |
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449 * dragged by the user but may be reordered |
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450 * by the programmer. |
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451 * |
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452 * @param moveable the moveable attribute |
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453 * |
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454 * @exception DWTException <ul> |
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455 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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456 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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457 * </ul> |
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458 * |
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459 * @see Tree#setColumnOrder(int[]) |
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460 * @see Tree#getColumnOrder() |
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461 * @see TreeColumn#getMoveable() |
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462 * @see DWT#Move |
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463 * |
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464 * @since 3.2 |
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465 */ |
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466 public void setMoveable (bool moveable) { |
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467 checkWidget (); |
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468 // int [] flags = new int [1]; |
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469 // OS.GetDataBrowserPropertyFlags (parent.handle, id, flags); |
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470 // if (moveable) { |
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471 // flags [0] |= OS.kDataBrowserListViewMovableColumn; |
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472 // } else { |
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473 // flags [0] &= ~OS.kDataBrowserListViewMovableColumn; |
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474 // } |
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475 // OS.SetDataBrowserPropertyFlags (parent.handle, id, flags [0]); |
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476 } |
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477 |
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478 /** |
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479 * Sets the resizable attribute. A column that is |
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480 * not resizable cannot be dragged by the user but |
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481 * may be resized by the programmer. |
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482 * |
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483 * @param resizable the resize attribute |
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484 * |
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485 * @exception DWTException <ul> |
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486 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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487 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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488 * </ul> |
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489 */ |
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490 public void setResizable (bool resizable) { |
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491 checkWidget (); |
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492 nsColumn.setResizingMask(resizable ? OS.NSTableColumnUserResizingMask : OS.NSTableColumnNoResizing); |
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493 } |
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494 |
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495 public void setText (String string) { |
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496 checkWidget (); |
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497 if (string is null) error (DWT.ERROR_NULL_ARGUMENT); |
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498 super.setText (string); |
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499 char [] buffer = new char [text.length ()]; |
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500 text.getChars (0, buffer.length, buffer, 0); |
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501 int length = fixMnemonic (buffer); |
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502 nsColumn.headerCell().setTitle(NSString.stringWithCharacters(buffer, length)); |
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503 } |
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504 |
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505 /** |
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506 * Sets the receiver's tool tip text to the argument, which |
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507 * may be null indicating that no tool tip text should be shown. |
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508 * |
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509 * @param string the new tool tip text (or null) |
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510 * |
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511 * @exception DWTException <ul> |
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512 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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513 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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514 * </ul> |
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515 * |
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516 * @since 3.2 |
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517 */ |
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518 public void setToolTipText (String string) { |
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519 checkWidget(); |
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520 toolTipText = string; |
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521 } |
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522 |
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523 /** |
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524 * Sets the width of the receiver. |
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525 * |
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526 * @param width the new width |
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527 * |
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528 * @exception DWTException <ul> |
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529 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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530 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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531 * </ul> |
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532 */ |
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533 public void setWidth (int width) { |
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534 checkWidget (); |
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535 if (width < 0) return; |
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536 nsColumn.setWidth (width); |
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537 } |
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538 } |