Mercurial > projects > dwt-mac
annotate dwt/widgets/Event.d @ 49:9dd4a17513f9
Updated Scrollabe to 3.514
author | Jacob Carlborg <doob@me.com> |
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date | Sun, 07 Dec 2008 20:41:40 +0100 |
parents | d8635bb48c7c |
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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.Event; |
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15 |
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16 |
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17 import dwt.graphics.GC; |
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18 import dwt.graphics.Rectangle; |
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19 |
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20 import tango.text.convert.Format; |
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21 |
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22 import dwt.dwthelper.utils; |
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23 |
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24 import dwt.widgets.Widget; |
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25 import dwt.widgets.Display; |
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26 |
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27 /** |
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28 * Instances of this class provide a description of a particular |
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29 * event which occurred within DWT. The DWT <em>untyped listener</em> |
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30 * API uses these instances for all event dispatching. |
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31 * <p> |
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32 * Note: For a given event, only the fields which are appropriate |
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33 * will be filled in. The contents of the fields which are not used |
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34 * by the event are unspecified. |
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35 * </p> |
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36 * |
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37 * @see Listener |
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38 * @see dwt.events.TypedEvent |
45 | 39 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: ControlExample, Listeners</a> |
40 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
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41 */ |
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42 |
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43 public class Event { |
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44 |
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45 /** |
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46 * the display where the event occurred |
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47 * |
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48 * @since 2.0 |
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49 */ |
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50 public Display display; |
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51 |
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52 /** |
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53 * the widget that issued the event |
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54 */ |
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55 public Widget widget; |
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56 |
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57 /** |
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58 * the type of event, as defined by the event type constants |
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59 * in class <code>DWT</code> |
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60 * |
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61 * @see dwt.DWT |
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62 */ |
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63 public int type; |
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64 |
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65 /** |
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66 * the event specific detail field, as defined by the detail constants |
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67 * in class <code>DWT</code> |
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68 * |
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69 * @see dwt.DWT |
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70 */ |
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71 public int detail; |
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72 |
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73 /** |
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74 * the item that the event occurred in (can be null) |
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75 */ |
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76 public Widget item; |
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77 |
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78 /** |
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79 * the index of the item where the event occurred |
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80 * |
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81 * @since 3.2 |
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82 */ |
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83 public int index; |
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84 |
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85 /** |
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86 * the graphics context to use when painting |
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87 * that is configured to use the colors, font and |
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88 * damaged region of the control. It is valid |
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89 * only during the paint and must not be disposed |
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90 */ |
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91 public GC gc; |
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92 |
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93 /** |
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94 * depending on the event type, the x offset of the bounding |
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95 * rectangle of the region that requires painting or the |
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96 * widget-relative, x coordinate of the pointer at the |
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97 * time the mouse button was pressed or released |
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98 */ |
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99 public int x; |
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100 |
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101 /** |
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102 * depending on the event type, the y offset of the bounding |
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103 * rectangle of the region that requires painting or the |
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104 * widget-relative, y coordinate of the pointer at the |
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105 * time the mouse button was pressed or released |
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106 */ |
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107 public int y; |
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108 |
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109 /** |
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110 * the width of the bounding rectangle of the |
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111 * region that requires painting |
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112 */ |
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113 public int width; |
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114 |
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115 /** |
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116 * the height of the bounding rectangle of the |
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117 * region that requires painting |
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118 */ |
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119 public int height; |
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120 |
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121 /** |
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122 * depending on the event type, the number of following |
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123 * paint events which are pending which may always be zero |
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124 * on some platforms or the number of lines or pages to |
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125 * scroll using the mouse wheel |
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126 */ |
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127 public int count; |
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128 |
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129 /** |
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130 * the time that the event occurred. |
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131 * |
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132 * NOTE: This field is an unsigned integer and should |
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133 * be AND'ed with 0xFFFFFFFFL so that it can be treated |
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134 * as a signed long. |
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135 */ |
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136 public int time; |
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137 |
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138 /** |
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139 * the button that was pressed or released; 1 for the |
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140 * first button, 2 for the second button, and 3 for the |
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141 * third button, etc. |
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142 */ |
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143 public int button; |
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144 |
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145 /** |
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146 * depending on the event, the character represented by the key |
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147 * that was typed. This is the final character that results |
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148 * after all modifiers have been applied. For example, when the |
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149 * user types Ctrl+A, the character value is 0x01 (ASCII SOH). |
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150 * It is important that applications do not attempt to modify the |
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151 * character value based on a stateMask (such as DWT.CTRL) or the |
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152 * resulting character will not be correct. |
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153 */ |
49 | 154 public wchar character = '\0'; |
0
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155 |
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156 /** |
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157 * depending on the event, the key code of the key that was typed, |
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158 * as defined by the key code constants in class <code>DWT</code>. |
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159 * When the character field of the event is ambiguous, this field |
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160 * contains the unaffected value of the original character. For |
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161 * example, typing Ctrl+M or Enter both result in the character '\r' |
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162 * but the keyCode field will also contain '\r' when Enter was typed |
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163 * and 'm' when Ctrl+M was typed. |
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164 * |
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165 * @see dwt.DWT |
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166 */ |
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167 public int keyCode; |
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168 |
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169 /** |
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170 * depending on the event, the state of the keyboard modifier |
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171 * keys and mouse masks at the time the event was generated. |
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172 * |
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173 * @see dwt.DWT |
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174 */ |
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175 public int stateMask; |
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176 |
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177 /** |
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178 * depending on the event, the range of text being modified. |
45 | 179 * Setting these fields only has effect during ImeComposition |
180 * events. | |
0
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181 */ |
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182 public int start, end; |
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183 |
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184 /** |
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185 * depending on the event, the new text that will be inserted. |
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186 * Setting this field will change the text that is about to |
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187 * be inserted or deleted. |
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188 */ |
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189 public String text; |
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190 |
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191 /** |
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192 * depending on the event, a flag indicating whether the operation |
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193 * should be allowed. Setting this field to false will cancel the |
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194 * operation. |
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195 */ |
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196 public bool doit = true; |
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197 |
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198 /** |
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199 * a field for application use |
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200 */ |
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201 public Object data; |
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202 |
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203 /** |
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204 * Gets the bounds. |
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205 * |
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206 * @return a rectangle that is the bounds. |
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207 */ |
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208 public Rectangle getBounds () { |
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209 return new Rectangle (x, y, width, height); |
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210 } |
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211 |
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212 /** |
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213 * Sets the bounds. |
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214 * |
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215 * @param rect the new rectangle |
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216 */ |
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217 public void setBounds (Rectangle rect) { |
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218 this.x = rect.x; |
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219 this.y = rect.y; |
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220 this.width = rect.width; |
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221 this.height = rect.height; |
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222 } |
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223 |
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224 /** |
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225 * Returns a string containing a concise, human-readable |
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226 * description of the receiver. |
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227 * |
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228 * @return a string representation of the event |
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229 */ |
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230 public String toString () { |
15
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231 return Format( "Event {{type={} {} time={} data={} x={} y={} width={} height={} detail={}}", |
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232 type, widget, time, data, x, y, width, height, detail ); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ |
0
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233 } |
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234 } |