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Upload of whole dwt tree
author Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
date Sat, 09 Aug 2008 17:00:02 +0200
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children 649b8e223d5a 2952d5604c0a
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2007 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 *******************************************************************************/
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11 module dwt.widgets.Caret;
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12
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13 import dwt.dwthelper.utils;
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14
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15
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16 import dwt.DWT;
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17 import dwt.DWTException;
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18 import dwt.graphics.Font;
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19 import dwt.graphics.Image;
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20 import dwt.graphics.Point;
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21 import dwt.graphics.Rectangle;
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22 import dwt.internal.cocoa.NSRect;
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23 import dwt.internal.cocoa.NSSize;
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24
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25 /**
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26 * Instances of this class provide an i-beam that is typically used
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27 * as the insertion point for text.
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28 * <dl>
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29 * <dt><b>Styles:</b></dt>
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30 * <dd>(none)</dd>
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31 * <dt><b>Events:</b></dt>
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32 * <dd>(none)</dd>
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33 * </dl>
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34 * <p>
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35 * IMPORTANT: This class is intended to be subclassed <em>only</em>
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36 * within the DWT implementation.
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37 * </p>
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38 */
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39 public class Caret extends Widget {
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40 Canvas parent;
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41 int x, y, width, height;
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42 bool isVisible, isShowing;
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43 int blinkRate;
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44 Image image;
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45 Font font;
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46
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47 static final int DEFAULT_WIDTH = 1;
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48
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49 /**
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50 * Constructs a new instance of this class given its parent
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51 * and a style value describing its behavior and appearance.
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52 * <p>
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53 * The style value is either one of the style constants defined in
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54 * class <code>DWT</code> which is applicable to instances of this
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55 * class, or must be built by <em>bitwise OR</em>'ing together
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56 * (that is, using the <code>int</code> "|" operator) two or more
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57 * of those <code>DWT</code> style constants. The class description
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58 * lists the style constants that are applicable to the class.
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59 * Style bits are also inherited from superclasses.
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60 * </p>
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61 *
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62 * @param parent a composite control which will be the parent of the new instance (cannot be null)
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63 * @param style the style of control to construct
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64 *
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65 * @exception IllegalArgumentException <ul>
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66 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
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67 * </ul>
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68 * @exception DWTException <ul>
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69 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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70 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
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71 * </ul>
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72 *
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73 * @see DWT
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74 * @see Widget#checkSubclass
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75 * @see Widget#getStyle
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76 */
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77 public Caret (Canvas parent, int style) {
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78 super (parent, style);
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79 this.parent = parent;
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80 createWidget ();
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81 }
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82
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83 bool blinkCaret () {
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84 if (!isVisible) return true;
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85 if (!isShowing) return showCaret ();
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86 if (blinkRate is 0) return true;
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87 return hideCaret ();
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88 }
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89
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90 void createWidget () {
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91 super.createWidget ();
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92 blinkRate = display.getCaretBlinkTime ();
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93 isVisible = true;
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94 if (parent.getCaret () is null) {
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95 parent.setCaret (this);
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96 }
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97 }
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98
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99 bool drawCaret () {
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100 if (parent is null) return false;
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101 if (parent.isDisposed ()) return false;
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102 int nWidth = width, nHeight = height;
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103 if (nWidth <= 0) nWidth = DEFAULT_WIDTH;
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104 if (image !is null) {
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105 NSSize size = image.handle.size();
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106 nWidth = (int)size.width;
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107 nHeight = (int)size.height;
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108 }
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109 NSRect rect = new NSRect();
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110 rect.x = x;
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111 rect.y = y;
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112 rect.width = nWidth;
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113 rect.height = nHeight;
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114 parent.view.setNeedsDisplayInRect(rect);
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115 return true;
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116 }
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117
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118 /**
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119 * Returns a rectangle describing the receiver's size and location
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120 * relative to its parent (or its display if its parent is null).
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121 *
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122 * @return the receiver's bounding rectangle
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123 *
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124 * @exception DWTException <ul>
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125 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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126 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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127 * </ul>
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128 */
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129 public Rectangle getBounds () {
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130 checkWidget();
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131 if (image !is null) {
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132 Rectangle rect = image.getBounds ();
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133 return new Rectangle (x, y, rect.width, rect.height);
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134 } else {
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135 if (width is 0) {
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136 return new Rectangle (x, y, DEFAULT_WIDTH, height);
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137 }
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138 }
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139 return new Rectangle (x, y, width, height);
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140 }
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141
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142 /**
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143 * Returns the font that the receiver will use to paint textual information.
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144 *
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145 * @return the receiver's font
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146 *
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147 * @exception DWTException <ul>
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148 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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149 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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150 * </ul>
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151 */
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152 public Font getFont () {
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153 checkWidget();
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154 if (font !is null) return font;
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155 return parent.getFont ();
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156 }
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157
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158 /**
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159 * Returns the image that the receiver will use to paint the caret.
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160 *
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161 * @return the receiver's image
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162 *
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163 * @exception DWTException <ul>
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164 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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165 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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166 * </ul>
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167 */
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168 public Image getImage () {
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169 checkWidget();
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170 return image;
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171 }
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172
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173 /**
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174 * Returns a point describing the receiver's location relative
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175 * to its parent (or its display if its parent is null).
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176 *
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177 * @return the receiver's location
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178 *
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179 * @exception DWTException <ul>
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180 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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181 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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182 * </ul>
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183 */
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184 public Point getLocation () {
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185 checkWidget();
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186 return new Point (x, y);
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187 }
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188
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189 /**
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190 * Returns the receiver's parent, which must be a <code>Canvas</code>.
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parents:
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191 *
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192 * @return the receiver's parent
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193 *
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194 * @exception DWTException <ul>
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195 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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196 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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197 * </ul>
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198 */
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199 public Canvas getParent () {
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200 checkWidget();
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201 return parent;
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202 }
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parents:
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203
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parents:
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204 /**
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205 * Returns a point describing the receiver's size.
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parents:
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206 *
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207 * @return the receiver's size
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parents:
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208 *
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209 * @exception DWTException <ul>
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parents:
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210 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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211 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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212 * </ul>
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213 */
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214 public Point getSize () {
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215 checkWidget();
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216 if (image !is null) {
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217 Rectangle rect = image.getBounds ();
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218 return new Point (rect.width, rect.height);
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219 } else {
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220 if (width is 0) {
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221 return new Point (DEFAULT_WIDTH, height);
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parents:
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222 }
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223 }
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224 return new Point (width, height);
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225 }
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226
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227 /**
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228 * Returns <code>true</code> if the receiver is visible, and
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parents:
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229 * <code>false</code> otherwise.
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230 * <p>
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231 * If one of the receiver's ancestors is not visible or some
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232 * other condition makes the receiver not visible, this method
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233 * may still indicate that it is considered visible even though
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234 * it may not actually be showing.
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235 * </p>
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parents:
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236 *
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237 * @return the receiver's visibility state
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parents:
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238 *
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239 * @exception DWTException <ul>
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240 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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parents:
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241 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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242 * </ul>
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parents:
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243 */
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244 public bool getVisible () {
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245 checkWidget();
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246 return isVisible;
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247 }
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248
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249 bool hideCaret () {
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250 if (!isShowing) return true;
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251 isShowing = false;
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252 return drawCaret ();
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253 }
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254
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255 /**
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256 * Returns <code>true</code> if the receiver is visible and all
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parents:
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257 * of the receiver's ancestors are visible and <code>false</code>
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258 * otherwise.
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259 *
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260 * @return the receiver's visibility state
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261 *
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262 * @exception DWTException <ul>
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263 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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264 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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265 * </ul>
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266 *
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267 * @see #getVisible
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268 */
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269 public bool isVisible () {
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270 checkWidget();
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271 return isVisible && parent.isVisible () && parent.hasFocus ();
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272 }
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273
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274 bool isFocusCaret () {
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275 return this is display.currentCaret;
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276 }
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277
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278 void killFocus () {
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279 if (display.currentCaret !is this) return;
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280 display.setCurrentCaret (null);
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281 if (isVisible) hideCaret ();
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282 }
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283
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284 void releaseParent () {
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285 super.releaseParent ();
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286 if (this is parent.getCaret ()) parent.setCaret (null);
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287 }
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288
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289 void releaseWidget () {
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290 super.releaseWidget ();
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291 if (display.currentCaret is this) {
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292 hideCaret ();
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293 display.setCurrentCaret (null);
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294 }
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295 parent = null;
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296 image = null;
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297 }
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298
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299 /**
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300 * Sets the receiver's size and location to the rectangular
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301 * area specified by the arguments. The <code>x</code> and
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302 * <code>y</code> arguments are relative to the receiver's
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303 * parent (or its display if its parent is null).
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304 *
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305 * @param x the new x coordinate for the receiver
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306 * @param y the new y coordinate for the receiver
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307 * @param width the new width for the receiver
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308 * @param height the new height for the receiver
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309 *
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310 * @exception DWTException <ul>
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311 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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312 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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313 * </ul>
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314 */
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315 public void setBounds (int x, int y, int width, int height) {
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316 checkWidget();
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317 if (this.x is x && this.y is y && this.width is width && this.height is height) return;
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318 bool isFocus = isFocusCaret ();
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319 if (isFocus && isVisible) hideCaret ();
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320 this.x = x;
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321 this.y = y;
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322 this.width = width;
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323 this.height = height;
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324 if (isFocus && isVisible) showCaret ();
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325 }
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326
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327 /**
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328 * Sets the receiver's size and location to the rectangular
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329 * area specified by the argument. The <code>x</code> and
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330 * <code>y</code> fields of the rectangle are relative to
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331 * the receiver's parent (or its display if its parent is null).
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332 *
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333 * @param rect the new bounds for the receiver
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334 *
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335 * @exception DWTException <ul>
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336 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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337 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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338 * </ul>
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339 */
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340 public void setBounds (Rectangle rect) {
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341 checkWidget();
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342 if (rect is null) error (DWT.ERROR_NULL_ARGUMENT);
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343 setBounds (rect.x, rect.y, rect.width, rect.height);
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344 }
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345
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346 void setFocus () {
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347 if (display.currentCaret is this) return;
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348 display.setCurrentCaret (this);
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349 if (isVisible) showCaret ();
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350 }
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351
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352 /**
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353 * Sets the font that the receiver will use to paint textual information
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354 * to the font specified by the argument, or to the default font for that
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355 * kind of control if the argument is null.
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356 *
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357 * @param font the new font (or null)
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358 *
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359 * @exception IllegalArgumentException <ul>
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360 * <li>ERROR_INVALID_ARGUMENT - if the font has been disposed</li>
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361 * </ul>
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362 * @exception DWTException <ul>
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363 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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364 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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365 * </ul>
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366 */
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367 public void setFont (Font font) {
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368 checkWidget();
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369 if (font !is null && font.isDisposed ()) {
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370 error (DWT.ERROR_INVALID_ARGUMENT);
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371 }
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372 this.font = font;
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373 }
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374
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375 /**
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376 * Sets the image that the receiver will use to paint the caret
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377 * to the image specified by the argument, or to the default
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378 * which is a filled rectangle if the argument is null
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379 *
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380 * @param image the new image (or null)
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381 *
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382 * @exception IllegalArgumentException <ul>
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383 * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li>
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384 * </ul>
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385 * @exception DWTException <ul>
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386 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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387 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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388 * </ul>
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389 */
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
390 public void setImage (Image image) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
391 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
392 if (image !is null && image.isDisposed ()) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
393 error (DWT.ERROR_INVALID_ARGUMENT);
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 bool isFocus = isFocusCaret ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
396 if (isFocus && isVisible) hideCaret ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
397 this.image = image;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
398 if (isFocus && isVisible) showCaret ();
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
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
401 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
402 * 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
403 * 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
404 * 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
405 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
406 * @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
407 * @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
408 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
409 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
410 * <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
411 * <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
412 * </ul>
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 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
415 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
416 setBounds (x, y, width, height);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
417 }
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 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
420 * 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
421 * 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
422 * 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
423 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
424 * @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
425 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
426 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
427 * <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
428 * <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
429 * </ul>
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 public void setLocation (Point location) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
432 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
433 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
434 setLocation (location.x, location.y);
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
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
437 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
438 * 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
439 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
440 * @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
441 * @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
442 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
443 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
444 * <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
445 * <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
446 * </ul>
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 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
449 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
450 setBounds (x, y, width, height);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
451 }
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 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
454 * 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
455 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
456 * @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
457 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
458 * @exception IllegalArgumentException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
459 * <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
460 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
461 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
462 * <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
463 * <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
464 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
465 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
466 public void setSize (Point size) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
467 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
468 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
469 setSize (size.x, size.y);
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
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
472 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
473 * 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
474 * and marks it invisible otherwise.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
475 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
476 * 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
477 * 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
478 * 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
479 * </p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
480 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
481 * @param visible the new visibility state
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
482 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
483 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
484 * <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
485 * <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
486 * </ul>
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 public void setVisible (bool visible) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
489 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
490 if (visible is isVisible) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
491 isVisible = visible;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
492 if (!isFocusCaret ()) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
493 if (isVisible) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
494 showCaret ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
495 } else {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
496 hideCaret ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
497 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
498 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
499
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
500 bool showCaret () {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
501 if (isShowing) return true;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
502 isShowing = true;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
503 return drawCaret ();
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
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
506 }