Mercurial > projects > dwt-mac
annotate dwt/widgets/Tray.d @ 45:d8635bb48c7c
Merge with SWT 3.5
author | Jacob Carlborg <doob@me.com> |
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date | Mon, 01 Dec 2008 17:07:00 +0100 |
parents | 642f460a0908 |
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rev | line source |
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45 | 1 /******************************************************************************* |
2 * Copyright (c) 2000, 2008 IBM Corporation and others. | |
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3 * All rights reserved. This program and the accompanying materials |
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4 * are made available under the terms of the Eclipse Public License v1.0 |
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5 * which accompanies this distribution, and is available at |
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6 * http://www.eclipse.org/legal/epl-v10.html |
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7 * |
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8 * Contributors: |
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9 * IBM Corporation - initial API and implementation |
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10 * |
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11 * Port to the D programming language: |
45 | 12 * Jacob Carlborg <doob@me.com> |
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13 *******************************************************************************/ |
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14 module dwt.widgets.Tray; |
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15 |
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16 |
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17 import dwt.DWT; |
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18 import dwt.DWTException; |
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19 |
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20 import dwt.dwthelper.utils; |
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21 import dwt.widgets.Display; |
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22 import dwt.widgets.Widget; |
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23 import dwt.widgets.TrayItem; |
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24 |
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25 /** |
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26 * Instances of this class represent the system tray that is part |
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27 * of the task bar status area on some operating systems. |
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28 * |
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29 * <dl> |
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30 * <dt><b>Styles:</b></dt> |
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31 * <dd>(none)</dd> |
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32 * <dt><b>Events:</b></dt> |
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33 * <dd>(none)</dd> |
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34 * </dl> |
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35 * <p> |
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36 * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
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37 * </p> |
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38 * |
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39 * @see Display#getSystemTray |
45 | 40 * @see <a href="http://www.eclipse.org/swt/snippets/#tray">Tray, TrayItem snippets</a> |
41 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
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42 * |
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43 * @since 3.0 |
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44 */ |
3 | 45 public class Tray : Widget { |
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46 int itemCount; |
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47 TrayItem [] items; |
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48 |
5 | 49 this (Display display, int style) { |
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50 if (display is null) display = Display.getCurrent (); |
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51 if (display is null) display = Display.getDefault (); |
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52 if (!display.isValidThread ()) { |
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53 error (DWT.ERROR_THREAD_INVALID_ACCESS); |
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54 } |
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55 this.display = display; |
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56 items = new TrayItem [4]; |
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57 } |
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58 |
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59 void createItem (TrayItem item, int index) { |
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60 if (!(0 <= index && index <= itemCount)) error (DWT.ERROR_INVALID_RANGE); |
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61 if (itemCount is items.length) { |
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62 TrayItem [] newItems = new TrayItem [items.length + 4]; |
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63 System.arraycopy (items, 0, newItems, 0, items.length); |
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64 items = newItems; |
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65 } |
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66 System.arraycopy (items, index, items, index + 1, itemCount++ - index); |
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67 items [index] = item; |
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68 } |
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69 |
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70 void destroyItem (TrayItem item) { |
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71 int index = 0; |
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72 while (index < itemCount) { |
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73 if (items [index] is item) break; |
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74 index++; |
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75 } |
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76 if (index is itemCount) return; |
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77 System.arraycopy (items, index + 1, items, index, --itemCount - index); |
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78 items [itemCount] = null; |
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79 } |
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80 |
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81 /** |
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82 * Returns the item at the given, zero-relative index in the |
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83 * receiver. Throws an exception if the index is out of range. |
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84 * |
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85 * @param index the index of the item to return |
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86 * @return the item at the given index |
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87 * |
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88 * @exception IllegalArgumentException <ul> |
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89 * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> |
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90 * </ul> |
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91 * @exception DWTException <ul> |
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92 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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93 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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94 * </ul> |
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95 */ |
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96 public TrayItem getItem (int index) { |
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97 checkWidget (); |
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98 if (!(0 <= index && index < itemCount)) error (DWT.ERROR_INVALID_RANGE); |
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99 return items [index]; |
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100 } |
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101 |
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102 /** |
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103 * Returns the number of items contained in the receiver. |
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104 * |
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105 * @return the number of items |
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106 * |
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107 * @exception DWTException <ul> |
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108 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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109 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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110 * </ul> |
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111 */ |
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112 public int getItemCount () { |
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113 checkWidget (); |
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114 return itemCount; |
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115 } |
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116 |
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117 /** |
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118 * Returns an array of <code>TrayItem</code>s which are the items |
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119 * in the receiver. |
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120 * <p> |
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121 * Note: This is not the actual structure used by the receiver |
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122 * to maintain its list of items, so modifying the array will |
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123 * not affect the receiver. |
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124 * </p> |
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125 * |
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126 * @return the items in the receiver |
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127 * |
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128 * @exception DWTException <ul> |
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129 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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130 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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131 * </ul> |
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132 */ |
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133 public TrayItem [] getItems () { |
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134 checkWidget (); |
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135 TrayItem [] result = new TrayItem [itemCount]; |
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136 System.arraycopy (items, 0, result, 0, result.length); |
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137 return result; |
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138 } |
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139 |
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140 void releaseChildren (bool destroy) { |
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141 if (items !is null) { |
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142 for (int i=0; i<items.length; i++) { |
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143 TrayItem item = items [i]; |
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144 if (item !is null && !item.isDisposed ()) { |
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145 item.release (false); |
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146 } |
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147 } |
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148 items = null; |
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149 } |
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150 super.releaseChildren (destroy); |
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151 } |
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152 |
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153 void releaseParent () { |
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154 super.releaseParent (); |
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155 if (display.tray is this) display.tray = null; |
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156 } |
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157 |
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158 } |