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annotate dwt/widgets/Caret.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, 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 * Port to the D programming language:
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12 * Jacob Carlborg <jacob.carlborg@gmail.com>
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13 *******************************************************************************/
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14 module dwt.widgets.Caret;
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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 import dwt.graphics.Font;
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20 import dwt.graphics.Image;
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21 import dwt.graphics.Point;
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22 import dwt.graphics.Rectangle;
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23 import dwt.internal.cocoa.NSRect;
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24 import dwt.internal.cocoa.NSSize;
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26 import dwt.dwthelper.utils;
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27 import dwt.widgets.Canvas;
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28 import dwt.widgets.Widget;
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29
0
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30 /**
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31 * Instances of this class provide an i-beam that is typically used
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32 * as the insertion point for text.
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33 * <dl>
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34 * <dt><b>Styles:</b></dt>
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35 * <dd>(none)</dd>
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36 * <dt><b>Events:</b></dt>
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37 * <dd>(none)</dd>
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38 * </dl>
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39 * <p>
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40 * IMPORTANT: This class is intended to be subclassed <em>only</em>
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41 * within the DWT implementation.
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42 * </p>
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43 */
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44 public class Caret : Widget {
0
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45 Canvas parent;
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46 int x, y, width, height;
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47 bool isVisible, isShowing;
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48 int blinkRate;
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49 Image image;
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50 Font font;
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51
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52 static final int DEFAULT_WIDTH = 1;
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53
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54 /**
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55 * Constructs a new instance of this class given its parent
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56 * and a style value describing its behavior and appearance.
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57 * <p>
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58 * The style value is either one of the style constants defined in
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59 * class <code>DWT</code> which is applicable to instances of this
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60 * class, or must be built by <em>bitwise OR</em>'ing together
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61 * (that is, using the <code>int</code> "|" operator) two or more
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62 * of those <code>DWT</code> style constants. The class description
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63 * lists the style constants that are applicable to the class.
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64 * Style bits are also inherited from superclasses.
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65 * </p>
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66 *
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67 * @param parent a composite control which will be the parent of the new instance (cannot be null)
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68 * @param style the style of control to construct
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69 *
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70 * @exception IllegalArgumentException <ul>
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71 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
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72 * </ul>
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73 * @exception DWTException <ul>
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74 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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75 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
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76 * </ul>
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77 *
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78 * @see DWT
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79 * @see Widget#checkSubclass
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80 * @see Widget#getStyle
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81 */
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82 public this (Canvas parent, int style) {
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83 super (parent, style);
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84 this.parent = parent;
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85 createWidget ();
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86 }
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87
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88 bool blinkCaret () {
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89 if (!isVisible) return true;
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90 if (!isShowing) return showCaret ();
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91 if (blinkRate is 0) return true;
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92 return hideCaret ();
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93 }
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94
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95 void createWidget () {
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96 super.createWidget ();
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97 blinkRate = display.getCaretBlinkTime ();
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98 isVisible = true;
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99 if (parent.getCaret () is null) {
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100 parent.setCaret (this);
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101 }
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102 }
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103
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104 bool drawCaret () {
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105 if (parent is null) return false;
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106 if (parent.isDisposed ()) return false;
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107 int nWidth = width, nHeight = height;
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108 if (nWidth <= 0) nWidth = DEFAULT_WIDTH;
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109 if (image !is null) {
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110 NSSize size = image.handle.size();
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111 nWidth = cast(int)size.width;
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112 nHeight = cast(int)size.height;
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113 }
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114 NSRect rect = NSRect();
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115 rect.x = x;
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116 rect.y = y;
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117 rect.width = nWidth;
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118 rect.height = nHeight;
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119 parent.view.setNeedsDisplayInRect(rect);
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120 return true;
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121 }
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122
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123 /**
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124 * Returns a rectangle describing the receiver's size and location
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125 * relative to its parent (or its display if its parent is null).
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126 *
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127 * @return the receiver's bounding rectangle
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128 *
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129 * @exception DWTException <ul>
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130 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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131 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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132 * </ul>
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133 */
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134 public Rectangle getBounds () {
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135 checkWidget();
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136 if (image !is null) {
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137 Rectangle rect = image.getBounds ();
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138 return new Rectangle (x, y, rect.width, rect.height);
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139 } else {
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140 if (width is 0) {
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141 return new Rectangle (x, y, DEFAULT_WIDTH, height);
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142 }
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143 }
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144 return new Rectangle (x, y, width, height);
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145 }
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146
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147 /**
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148 * Returns the font that the receiver will use to paint textual information.
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149 *
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150 * @return the receiver's font
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151 *
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152 * @exception DWTException <ul>
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153 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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154 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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155 * </ul>
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156 */
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157 public Font getFont () {
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158 checkWidget();
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159 if (font !is null) return font;
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160 return parent.getFont ();
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161 }
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162
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163 /**
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164 * Returns the image that the receiver will use to paint the caret.
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165 *
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166 * @return the receiver's image
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167 *
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168 * @exception DWTException <ul>
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169 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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170 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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171 * </ul>
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172 */
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173 public Image getImage () {
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174 checkWidget();
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175 return image;
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176 }
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177
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178 /**
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179 * Returns a point describing the receiver's location relative
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180 * to its parent (or its display if its parent is null).
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181 *
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182 * @return the receiver's location
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183 *
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184 * @exception DWTException <ul>
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185 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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186 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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187 * </ul>
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188 */
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189 public Point getLocation () {
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190 checkWidget();
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191 return new Point (x, y);
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192 }
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193
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194 /**
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195 * Returns the receiver's parent, which must be a <code>Canvas</code>.
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parents:
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196 *
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197 * @return the receiver's parent
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198 *
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199 * @exception DWTException <ul>
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parents:
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200 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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parents:
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201 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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parents:
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202 * </ul>
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parents:
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203 */
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parents:
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204 public Canvas getParent () {
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205 checkWidget();
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parents:
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206 return parent;
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207 }
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parents:
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208
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209 /**
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210 * Returns a point describing the receiver's size.
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parents:
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211 *
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212 * @return the receiver's size
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213 *
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214 * @exception DWTException <ul>
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parents:
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215 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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parents:
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216 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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217 * </ul>
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218 */
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219 public Point getSize () {
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220 checkWidget();
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221 if (image !is null) {
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222 Rectangle rect = image.getBounds ();
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223 return new Point (rect.width, rect.height);
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224 } else {
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parents:
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225 if (width is 0) {
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226 return new Point (DEFAULT_WIDTH, height);
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227 }
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228 }
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229 return new Point (width, height);
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230 }
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231
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232 /**
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233 * Returns <code>true</code> if the receiver is visible, and
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parents:
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234 * <code>false</code> otherwise.
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235 * <p>
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236 * If one of the receiver's ancestors is not visible or some
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237 * other condition makes the receiver not visible, this method
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238 * may still indicate that it is considered visible even though
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239 * it may not actually be showing.
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240 * </p>
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parents:
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241 *
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242 * @return the receiver's visibility state
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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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 public bool getVisible () {
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250 checkWidget();
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251 return isVisible;
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252 }
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253
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254 bool hideCaret () {
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255 if (!isShowing) return true;
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256 isShowing = false;
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257 return drawCaret ();
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258 }
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259
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260 /**
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261 * Returns <code>true</code> if the receiver is visible and all
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262 * of the receiver's ancestors are visible and <code>false</code>
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263 * otherwise.
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264 *
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265 * @return the receiver's visibility state
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266 *
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267 * @exception DWTException <ul>
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268 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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269 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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270 * </ul>
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271 *
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272 * @see #getVisible
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273 */
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274 public bool isVisible () {
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275 checkWidget();
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276 return isVisible && parent.isVisible () && parent.hasFocus ();
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277 }
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278
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279 bool isFocusCaret () {
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280 return this is display.currentCaret;
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281 }
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282
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283 void killFocus () {
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284 if (display.currentCaret !is this) return;
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285 display.setCurrentCaret (null);
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286 if (isVisible) hideCaret ();
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287 }
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288
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289 void releaseParent () {
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290 super.releaseParent ();
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291 if (this is parent.getCaret ()) parent.setCaret (null);
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292 }
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293
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294 void releaseWidget () {
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295 super.releaseWidget ();
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296 if (display.currentCaret is this) {
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297 hideCaret ();
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298 display.setCurrentCaret (null);
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299 }
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300 parent = null;
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301 image = null;
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302 }
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303
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304 /**
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305 * Sets the receiver's size and location to the rectangular
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306 * area specified by the arguments. The <code>x</code> and
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307 * <code>y</code> arguments are relative to the receiver's
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308 * parent (or its display if its parent is null).
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309 *
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310 * @param x the new x coordinate for the receiver
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311 * @param y the new y coordinate for the receiver
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312 * @param width the new width for the receiver
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313 * @param height the new height for the receiver
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314 *
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315 * @exception DWTException <ul>
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316 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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317 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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318 * </ul>
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319 */
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320 public void setBounds (int x, int y, int width, int height) {
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321 checkWidget();
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322 if (this.x is x && this.y is y && this.width is width && this.height is height) return;
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323 bool isFocus = isFocusCaret ();
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324 if (isFocus && isVisible) hideCaret ();
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325 this.x = x;
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326 this.y = y;
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327 this.width = width;
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328 this.height = height;
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329 if (isFocus && isVisible) showCaret ();
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330 }
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331
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332 /**
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333 * Sets the receiver's size and location to the rectangular
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parents:
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334 * area specified by the argument. The <code>x</code> and
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parents:
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335 * <code>y</code> fields of the rectangle are relative to
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parents:
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336 * the receiver's parent (or its display if its parent is null).
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337 *
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338 * @param rect the new bounds for the receiver
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339 *
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340 * @exception DWTException <ul>
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parents:
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341 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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parents:
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342 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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343 * </ul>
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344 */
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345 public void setBounds (Rectangle rect) {
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346 checkWidget();
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347 if (rect is null) error (DWT.ERROR_NULL_ARGUMENT);
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348 setBounds (rect.x, rect.y, rect.width, rect.height);
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349 }
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350
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351 void setFocus () {
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352 if (display.currentCaret is this) return;
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353 display.setCurrentCaret (this);
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354 if (isVisible) showCaret ();
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355 }
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356
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357 /**
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358 * Sets the font that the receiver will use to paint textual information
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359 * to the font specified by the argument, or to the default font for that
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360 * kind of control if the argument is null.
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361 *
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362 * @param font the new font (or null)
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363 *
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364 * @exception IllegalArgumentException <ul>
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parents:
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365 * <li>ERROR_INVALID_ARGUMENT - if the font has been disposed</li>
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366 * </ul>
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367 * @exception DWTException <ul>
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368 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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369 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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370 * </ul>
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371 */
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372 public void setFont (Font font) {
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373 checkWidget();
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374 if (font !is null && font.isDisposed ()) {
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375 error (DWT.ERROR_INVALID_ARGUMENT);
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376 }
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377 this.font = font;
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378 }
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379
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380 /**
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381 * Sets the image that the receiver will use to paint the caret
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parents:
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382 * to the image specified by the argument, or to the default
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383 * which is a filled rectangle if the argument is null
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parents:
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384 *
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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385 * @param image the new image (or null)
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parents:
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386 *
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387 * @exception IllegalArgumentException <ul>
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
388 * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
389 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
390 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
391 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
392 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
393 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
394 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
395 public void setImage (Image image) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
396 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
397 if (image !is null && image.isDisposed ()) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
398 error (DWT.ERROR_INVALID_ARGUMENT);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
399 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
400 bool isFocus = isFocusCaret ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
401 if (isFocus && isVisible) hideCaret ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
402 this.image = image;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
403 if (isFocus && isVisible) showCaret ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
404 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
405
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
406 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
407 * Sets the receiver's location to the point specified by
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
408 * the arguments which are relative to the receiver's
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
409 * parent (or its display if its parent is null).
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
410 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
411 * @param x the new x coordinate for the receiver
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
412 * @param y the new y coordinate for the receiver
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
413 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
414 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
415 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
416 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
417 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
418 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
419 public void setLocation (int x, int y) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
420 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
421 setBounds (x, y, width, height);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
422 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
423
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
424 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
425 * Sets the receiver's location to the point specified by
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
426 * the argument which is relative to the receiver's
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
427 * parent (or its display if its parent is null).
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
428 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
429 * @param location the new location for the receiver
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
430 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
431 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
432 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
433 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
434 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
435 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
436 public void setLocation (Point location) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
437 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
438 if (location is null) error (DWT.ERROR_NULL_ARGUMENT);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
439 setLocation (location.x, location.y);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
440 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
441
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
442 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
443 * Sets the receiver's size to the point specified by the arguments.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
444 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
445 * @param width the new width for the receiver
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
446 * @param height the new height for the receiver
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
447 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
448 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
449 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
450 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
451 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
452 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
453 public void setSize (int width, int height) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
454 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
455 setBounds (x, y, width, height);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
456 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
457
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
458 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
459 * Sets the receiver's size to the point specified by the argument.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
460 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
461 * @param size the new extent for the receiver
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
462 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
463 * @exception IllegalArgumentException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
464 * <li>ERROR_NULL_ARGUMENT - if the point is null</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
465 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
466 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
467 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
468 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
469 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
470 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
471 public void setSize (Point size) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
472 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
473 if (size is null) error (DWT.ERROR_NULL_ARGUMENT);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
474 setSize (size.x, size.y);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
475 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
476
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
477 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
478 * Marks the receiver as visible if the argument is <code>true</code>,
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
479 * and marks it invisible otherwise.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
480 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
481 * If one of the receiver's ancestors is not visible or some
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
482 * other condition makes the receiver not visible, marking
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
483 * it visible may not actually cause it to be displayed.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
484 * </p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
485 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
486 * @param visible the new visibility state
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
487 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
488 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
489 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
490 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
491 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
492 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
493 public void setVisible (bool visible) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
494 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
495 if (visible is isVisible) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
496 isVisible = visible;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
497 if (!isFocusCaret ()) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
498 if (isVisible) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
499 showCaret ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
500 } else {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
501 hideCaret ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
502 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
503 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
504
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
505 bool showCaret () {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
506 if (isShowing) return true;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
507 isShowing = true;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
508 return drawCaret ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
509 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
510
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
511 }