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annotate dwt/widgets/Tray.d @ 15:2952d5604c0a

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Ported some widgets, added some stuff to the runtime bindings
author Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
date Fri, 29 Aug 2008 21:46:05 +0200
parents 380af2bdd8e5
children 5b53d338c709
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2005 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 *
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11 * Port to the D programming language:
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12 * Jacob Carlborg <jacob.carlborg@gmail.com>
0
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13 *******************************************************************************/
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14 module dwt.widgets.Tray;
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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
0
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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
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40 *
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41 * @since 3.0
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42 */
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43 public class Tray : Widget {
0
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44 int itemCount;
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45 TrayItem [] items = new TrayItem [4];
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47 this (Display display, int style) {
0
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48 if (display is null) display = Display.getCurrent ();
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49 if (display is null) display = Display.getDefault ();
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50 if (!display.isValidThread ()) {
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51 error (DWT.ERROR_THREAD_INVALID_ACCESS);
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52 }
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53 this.display = display;
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54 }
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55
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56 void createItem (TrayItem item, int index) {
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57 if (!(0 <= index && index <= itemCount)) error (DWT.ERROR_INVALID_RANGE);
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58 if (itemCount is items.length) {
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59 TrayItem [] newItems = new TrayItem [items.length + 4];
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60 System.arraycopy (items, 0, newItems, 0, items.length);
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61 items = newItems;
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62 }
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63 System.arraycopy (items, index, items, index + 1, itemCount++ - index);
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64 items [index] = item;
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65 }
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66
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67 void destroyItem (TrayItem item) {
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68 int index = 0;
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69 while (index < itemCount) {
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70 if (items [index] is item) break;
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71 index++;
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72 }
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73 if (index is itemCount) return;
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74 System.arraycopy (items, index + 1, items, index, --itemCount - index);
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75 items [itemCount] = null;
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76 }
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77
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78 /**
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79 * Returns the item at the given, zero-relative index in the
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80 * receiver. Throws an exception if the index is out of range.
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81 *
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82 * @param index the index of the item to return
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83 * @return the item at the given index
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84 *
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85 * @exception IllegalArgumentException <ul>
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86 * <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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87 * </ul>
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88 * @exception DWTException <ul>
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89 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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90 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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91 * </ul>
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92 */
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93 public TrayItem getItem (int index) {
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94 checkWidget ();
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95 if (!(0 <= index && index < itemCount)) error (DWT.ERROR_INVALID_RANGE);
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96 return items [index];
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97 }
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98
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99 /**
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100 * Returns the number of items contained in the receiver.
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101 *
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102 * @return the number of items
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103 *
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104 * @exception DWTException <ul>
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105 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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106 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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107 * </ul>
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108 */
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109 public int getItemCount () {
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110 checkWidget ();
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111 return itemCount;
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112 }
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113
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114 /**
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115 * Returns an array of <code>TrayItem</code>s which are the items
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116 * in the receiver.
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117 * <p>
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118 * Note: This is not the actual structure used by the receiver
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119 * to maintain its list of items, so modifying the array will
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120 * not affect the receiver.
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121 * </p>
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122 *
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123 * @return the items in the receiver
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124 *
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125 * @exception DWTException <ul>
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126 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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127 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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128 * </ul>
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129 */
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130 public TrayItem [] getItems () {
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131 checkWidget ();
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132 TrayItem [] result = new TrayItem [itemCount];
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133 System.arraycopy (items, 0, result, 0, result.length);
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134 return result;
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135 }
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136
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137 void releaseChildren (bool destroy) {
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138 if (items !is null) {
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139 for (int i=0; i<items.length; i++) {
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140 TrayItem item = items [i];
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141 if (item !is null && !item.isDisposed ()) {
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142 item.release (false);
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143 }
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144 }
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145 items = null;
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146 }
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147 super.releaseChildren (destroy);
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148 }
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149
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150 void releaseParent () {
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151 super.releaseParent ();
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152 if (display.tray is this) display.tray = null;
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153 }
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154
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155 }