Mercurial > projects > dwt-mac
annotate dwt/widgets/ExpandBar.d @ 66:51015bbcb4c6
Ported dwt.widgets.ExpandBar
author | Jacob Carlborg <doob@me.com> |
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date | Tue, 23 Dec 2008 22:57:31 +0100 |
parents | d8635bb48c7c |
children | c7f7f4d7091a |
rev | line source |
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45 | 1 /******************************************************************************* |
2 * Copyright (c) 2000, 2008 IBM Corporation and others. | |
0
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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 |
66 | 10 * |
11 * Port to the D programming language: | |
12 * Jacob Carlborg <doob@me.com> | |
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13 *******************************************************************************/ |
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14 module dwt.widgets.ExpandBar; |
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15 |
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16 import dwt.dwthelper.utils; |
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17 |
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18 import dwt.DWT; |
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19 import dwt.DWTException; |
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20 import dwt.events.ExpandAdapter; |
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21 import dwt.events.ExpandEvent; |
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22 import dwt.events.ExpandListener; |
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23 import dwt.graphics.Color; |
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24 import dwt.graphics.Font; |
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25 import dwt.graphics.FontMetrics; |
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26 import dwt.graphics.GC; |
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27 import dwt.graphics.Point; |
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28 import dwt.graphics.Rectangle; |
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29 |
66 | 30 import dwt.widgets.Composite; |
31 import dwt.widgets.Event; | |
32 import dwt.widgets.ExpandItem; | |
33 import dwt.widgets.Listener; | |
34 import dwt.widgets.ScrollBar; | |
35 import dwt.widgets.TypedListener; | |
36 | |
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37 /** |
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38 * Instances of this class support the layout of selectable |
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39 * expand bar items. |
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40 * <p> |
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41 * The item children that may be added to instances of this class |
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42 * must be of type <code>ExpandItem</code>. |
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43 * </p><p> |
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44 * <dl> |
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45 * <dt><b>Styles:</b></dt> |
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46 * <dd>V_SCROLL</dd> |
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47 * <dt><b>Events:</b></dt> |
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48 * <dd>Expand, Collapse</dd> |
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49 * </dl> |
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50 * </p><p> |
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51 * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
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52 * </p> |
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53 * |
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54 * @see ExpandItem |
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55 * @see ExpandEvent |
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56 * @see ExpandListener |
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57 * @see ExpandAdapter |
45 | 58 * @see <a href="http://www.eclipse.org/swt/snippets/#expandbar">ExpandBar snippets</a> |
59 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: ControlExample</a> | |
60 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
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61 * |
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62 * @since 3.2 |
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63 */ |
3 | 64 public class ExpandBar : Composite { |
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65 ExpandItem [] items; |
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66 int itemCount; |
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67 ExpandItem focusItem; |
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68 int spacing; |
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69 int yCurrentScroll; |
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70 Font font; |
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71 Color foreground; |
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72 Listener listener; |
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73 bool inDispose; |
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74 |
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75 /** |
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76 * Constructs a new instance of this class given its parent |
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77 * and a style value describing its behavior and appearance. |
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78 * <p> |
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79 * The style value is either one of the style constants defined in |
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80 * class <code>DWT</code> which is applicable to instances of this |
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81 * class, or must be built by <em>bitwise OR</em>'ing together |
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82 * (that is, using the <code>int</code> "|" operator) two or more |
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83 * of those <code>DWT</code> style constants. The class description |
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84 * lists the style constants that are applicable to the class. |
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85 * Style bits are also inherited from superclasses. |
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86 * </p> |
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87 * |
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88 * @param parent a composite control which will be the parent of the new instance (cannot be null) |
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89 * @param style the style of control to construct |
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90 * |
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91 * @exception IllegalArgumentException <ul> |
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92 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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93 * </ul> |
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94 * @exception DWTException <ul> |
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95 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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96 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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97 * </ul> |
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98 * |
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99 * @see Widget#checkSubclass |
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100 * @see Widget#getStyle |
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101 */ |
5 | 102 public this (Composite parent, int style) { |
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103 super (parent, checkStyle (style)); |
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104 items = new ExpandItem [4]; |
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105 |
66 | 106 listener = new class () Listener { |
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107 public void handleEvent (Event event) { |
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108 switch (event.type) { |
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109 case DWT.Dispose: onDispose (event); break; |
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110 case DWT.MouseDown: onMouseDown (event); break; |
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111 case DWT.MouseUp: onMouseUp (event); break; |
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112 case DWT.Paint: onPaint (event); break; |
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113 case DWT.Resize: onResize (); break; |
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114 case DWT.KeyDown: onKeyDown (event); break; |
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115 case DWT.FocusIn: onFocus (); break; |
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116 case DWT.FocusOut: onFocus (); break; |
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117 case DWT.Traverse: onTraverse (event); break; |
66 | 118 default: |
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119 } |
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120 } |
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121 }; |
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122 addListener (DWT.Dispose, listener); |
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123 addListener (DWT.MouseDown, listener); |
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124 addListener (DWT.MouseUp, listener); |
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125 addListener (DWT.Paint, listener); |
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126 addListener (DWT.Resize, listener); |
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127 addListener (DWT.KeyDown, listener); |
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128 addListener (DWT.FocusIn, listener); |
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129 addListener (DWT.FocusOut, listener); |
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130 addListener (DWT.Traverse, listener); |
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131 |
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132 ScrollBar verticalBar = getVerticalBar (); |
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133 if (verticalBar !is null) { |
66 | 134 verticalBar.addListener (DWT.Selection, new class () Listener { |
0
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135 public void handleEvent (Event event) { |
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136 onScroll (event); |
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137 } |
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138 }); |
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139 } |
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140 } |
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141 |
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142 /** |
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143 * Adds the listener to the collection of listeners who will |
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144 * be notified when an item in the receiver is expanded or collapsed |
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145 * by sending it one of the messages defined in the <code>ExpandListener</code> |
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146 * interface. |
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147 * |
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148 * @param listener the listener which should be notified |
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149 * |
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150 * @exception IllegalArgumentException <ul> |
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151 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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152 * </ul> |
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153 * @exception DWTException <ul> |
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154 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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155 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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156 * </ul> |
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157 * |
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158 * @see ExpandListener |
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159 * @see #removeExpandListener |
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160 */ |
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161 public void addExpandListener (ExpandListener listener) { |
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162 checkWidget (); |
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163 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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164 TypedListener typedListener = new TypedListener (listener); |
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165 addListener (DWT.Expand, typedListener); |
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166 addListener (DWT.Collapse, typedListener); |
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167 } |
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168 |
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169 static int checkStyle (int style) { |
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170 return style & ~DWT.H_SCROLL; |
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171 } |
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172 |
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173 protected void checkSubclass () { |
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174 if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); |
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175 } |
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176 |
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177 public Point computeSize (int wHint, int hHint, bool changed) { |
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178 checkWidget (); |
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179 int height = 0, width = 0; |
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180 if (wHint is DWT.DEFAULT || hHint is DWT.DEFAULT) { |
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181 if (itemCount > 0) { |
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182 height += spacing; |
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183 GC gc = new GC (this); |
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184 for (int i = 0; i < itemCount; i++) { |
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185 ExpandItem item = items [i]; |
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186 height += item.getHeaderHeight (); |
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187 if (item.expanded) height += item.height; |
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188 height += spacing; |
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189 width = Math.max (width, item.getPreferredWidth (gc)); |
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190 } |
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191 gc.dispose (); |
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192 } |
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193 } |
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194 if (width is 0) width = DEFAULT_WIDTH; |
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195 if (height is 0) height = DEFAULT_HEIGHT; |
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196 if (wHint !is DWT.DEFAULT) width = wHint; |
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197 if (hHint !is DWT.DEFAULT) height = hHint; |
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198 Rectangle trim = computeTrim (0, 0, width, height); |
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199 return new Point (trim.width, trim.height); |
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200 } |
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201 |
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202 void createItem (ExpandItem item, int style, int index) { |
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203 if (!(0 <= index && index <= itemCount)) error (DWT.ERROR_INVALID_RANGE); |
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204 if (itemCount is items.length) { |
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205 ExpandItem [] newItems = new ExpandItem [itemCount + 4]; |
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206 System.arraycopy (items, 0, newItems, 0, items.length); |
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207 items = newItems; |
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208 } |
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209 System.arraycopy (items, index, items, index + 1, itemCount - index); |
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210 items [index] = item; |
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211 itemCount++; |
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212 if (focusItem is null) focusItem = item; |
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213 item.width = Math.max (0, getClientArea ().width - spacing * 2); |
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214 layoutItems (index, true); |
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215 } |
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216 |
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217 void destroyItem (ExpandItem item) { |
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218 if (inDispose) return; |
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219 int index = 0; |
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220 while (index < itemCount) { |
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221 if (items [index] is item) break; |
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222 index++; |
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223 } |
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224 if (index is itemCount) return; |
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225 if (item is focusItem) { |
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226 int focusIndex = index > 0 ? index - 1 : 1; |
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227 if (focusIndex < itemCount) { |
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228 focusItem = items [focusIndex]; |
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229 focusItem.redraw (); |
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230 } else { |
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231 focusItem = null; |
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232 } |
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233 } |
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234 System.arraycopy (items, index + 1, items, index, --itemCount - index); |
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235 items [itemCount] = null; |
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236 item.redraw (); |
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237 layoutItems (index, true); |
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238 } |
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239 |
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240 int getBandHeight () { |
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241 if (font is null) return ExpandItem.CHEVRON_SIZE; |
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242 GC gc = new GC (this); |
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243 FontMetrics metrics = gc.getFontMetrics (); |
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244 gc.dispose (); |
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245 return Math.max (ExpandItem.CHEVRON_SIZE, metrics.getHeight ()); |
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246 } |
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247 |
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248 public Color getForeground () { |
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249 checkWidget (); |
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250 if (foreground is null) { |
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251 Display display = getDisplay (); |
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252 return display.getSystemColor (DWT.COLOR_TITLE_FOREGROUND); |
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253 } |
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254 return foreground; |
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255 } |
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256 |
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257 /** |
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258 * Returns the item at the given, zero-relative index in the |
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259 * receiver. Throws an exception if the index is out of range. |
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260 * |
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261 * @param index the index of the item to return |
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262 * @return the item at the given index |
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263 * |
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264 * @exception IllegalArgumentException <ul> |
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265 * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> |
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266 * </ul> |
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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 public ExpandItem getItem (int index) { |
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273 checkWidget (); |
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274 if (!(0 <= index && index < itemCount)) error (DWT.ERROR_INVALID_RANGE); |
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275 return items [index]; |
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276 } |
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277 |
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278 /** |
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279 * Returns the number of items contained in the receiver. |
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280 * |
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281 * @return the number of items |
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282 * |
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283 * @exception DWTException <ul> |
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284 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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285 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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286 * </ul> |
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287 */ |
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288 public int getItemCount () { |
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289 checkWidget (); |
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290 return itemCount; |
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291 } |
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292 |
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293 /** |
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294 * Returns an array of <code>ExpandItem</code>s which are the items |
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295 * in the receiver. |
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296 * <p> |
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297 * Note: This is not the actual structure used by the receiver |
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298 * to maintain its list of items, so modifying the array will |
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299 * not affect the receiver. |
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300 * </p> |
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301 * |
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302 * @return the items in the receiver |
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303 * |
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304 * @exception DWTException <ul> |
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305 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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306 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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307 * </ul> |
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308 */ |
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309 public ExpandItem [] getItems () { |
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310 checkWidget (); |
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311 ExpandItem [] result = new ExpandItem [itemCount]; |
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312 System.arraycopy (items, 0, result, 0, itemCount); |
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313 return result; |
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314 } |
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315 |
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316 /** |
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317 * Returns the receiver's spacing. |
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318 * |
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319 * @return the spacing |
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320 * |
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321 * @exception DWTException <ul> |
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322 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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323 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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324 * </ul> |
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325 */ |
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326 public int getSpacing () { |
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327 checkWidget (); |
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328 return spacing; |
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329 } |
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330 |
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331 /** |
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332 * Searches the receiver's list starting at the first item |
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333 * (index 0) until an item is found that is equal to the |
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334 * argument, and returns the index of that item. If no item |
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335 * is found, returns -1. |
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336 * |
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337 * @param item the search item |
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338 * @return the index of the item |
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339 * |
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340 * @exception IllegalArgumentException <ul> |
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341 * <li>ERROR_NULL_ARGUMENT - if the item is null</li> |
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342 * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> |
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343 * </ul> |
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344 * @exception DWTException <ul> |
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345 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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346 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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347 * </ul> |
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348 */ |
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349 public int indexOf (ExpandItem item) { |
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350 checkWidget (); |
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351 if (item is null) error (DWT.ERROR_NULL_ARGUMENT); |
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352 for (int i = 0; i < itemCount; i++) { |
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353 if (items [i] is item) return i; |
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354 } |
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355 return -1; |
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356 } |
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357 |
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358 void layoutItems (int index, bool setScrollbar) { |
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359 if (index < itemCount) { |
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360 int y = spacing - yCurrentScroll; |
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361 for (int i = 0; i < index; i++) { |
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362 ExpandItem item = items [i]; |
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363 if (item.expanded) y += item.height; |
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364 y += item.getHeaderHeight() + spacing; |
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365 } |
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366 for (int i = index; i < itemCount; i++) { |
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367 ExpandItem item = items [i]; |
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368 item.setBounds (spacing, y, 0, 0, true, false); |
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369 if (item.expanded) y += item.height; |
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370 y += item.getHeaderHeight() + spacing; |
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371 } |
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372 } |
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373 if (setScrollbar) setScrollbar (); |
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374 } |
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375 |
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376 /** |
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377 * Removes the listener from the collection of listeners who will |
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378 * be notified when items in the receiver are expanded or collapsed. |
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379 * |
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380 * @param listener the listener which should no longer be notified |
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381 * |
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382 * @exception IllegalArgumentException <ul> |
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383 * <li>ERROR_NULL_ARGUMENT - if the listener is null</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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390 * @see ExpandListener |
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391 * @see #addExpandListener |
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392 */ |
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393 public void removeExpandListener (ExpandListener listener) { |
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394 checkWidget (); |
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395 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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396 if (eventTable is null) return; |
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397 eventTable.unhook (DWT.Expand, listener); |
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398 eventTable.unhook (DWT.Collapse, listener); |
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399 } |
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400 |
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401 public void setFont(Font font) { |
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402 super.setFont (font); |
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403 this.font = font; |
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404 layoutItems (0, true); |
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405 } |
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406 |
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407 public void setForeground (Color color) { |
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408 super.setForeground (color); |
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409 foreground = color; |
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410 } |
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411 |
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412 void setScrollbar () { |
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413 if (itemCount is 0) return; |
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414 ScrollBar verticalBar = getVerticalBar (); |
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415 if (verticalBar is null) return; |
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416 int height = getClientArea ().height; |
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417 ExpandItem item = items [itemCount - 1]; |
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418 int maxHeight = item.y + getBandHeight () + spacing; |
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419 if (item.expanded) maxHeight += item.height; |
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420 |
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421 //claim bottom free space |
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422 if (yCurrentScroll > 0 && height > maxHeight) { |
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423 yCurrentScroll = Math.max (0, yCurrentScroll + maxHeight - height); |
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424 layoutItems (0, false); |
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425 } |
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426 maxHeight += yCurrentScroll; |
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427 |
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428 int selection = Math.min (yCurrentScroll, maxHeight); |
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429 int increment = verticalBar.getIncrement (); |
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430 int pageIncrement = verticalBar.getPageIncrement (); |
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431 verticalBar.setValues(selection, 0, maxHeight, height, increment, pageIncrement); |
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432 verticalBar.setVisible(maxHeight > height); |
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433 } |
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434 |
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435 /** |
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436 * Sets the receiver's spacing. Spacing specifies the number of pixels allocated around |
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437 * each item. |
45 | 438 * |
439 * @param spacing the spacing around each item | |
0
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440 * |
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441 * @exception DWTException <ul> |
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442 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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443 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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444 * </ul> |
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445 */ |
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446 public void setSpacing (int spacing) { |
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447 checkWidget (); |
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448 if (spacing < 0) return; |
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449 if (spacing is this.spacing) return; |
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450 this.spacing = spacing; |
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451 int width = Math.max (0, getClientArea ().width - spacing * 2); |
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452 for (int i = 0; i < itemCount; i++) { |
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453 ExpandItem item = items[i]; |
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454 if (item.width !is width) item.setBounds (0, 0, width, item.height, false, true); |
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455 } |
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456 layoutItems (0, true); |
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457 redraw (); |
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458 } |
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459 |
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460 void showItem (ExpandItem item) { |
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461 Control control = item.control; |
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462 if (control !is null && !control.isDisposed ()) { |
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463 control.setVisible (item.expanded); |
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464 } |
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465 item.redraw (); |
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466 int index = indexOf (item); |
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467 layoutItems (index + 1, true); |
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468 } |
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469 |
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470 void onDispose (Event event) { |
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471 removeListener (DWT.Dispose, listener); |
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472 notifyListeners (DWT.Dispose, event); |
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473 event.type = DWT.None; |
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474 /* |
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475 * Usually when an item is disposed, destroyItem will change the size of the items array, |
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476 * reset the bounds of all the tabs and manage the widget associated with the tab. |
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477 * Since the whole folder is being disposed, this is not necessary. For speed |
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478 * the inDispose flag is used to skip over this part of the item dispose. |
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479 */ |
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480 inDispose = true; |
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changeset
|
481 |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
482 for (int i = 0; i < itemCount; i++) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
483 items [i].dispose (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
484 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
485 items = null; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
486 font = null; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
487 foreground = null; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
488 focusItem = null; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
489 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
490 |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
491 void onFocus () { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
492 if (focusItem !is null) focusItem.redraw (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
493 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
494 |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
495 void onKeyDown (Event event) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
496 if (focusItem is null) return; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
497 switch (event.keyCode) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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changeset
|
498 case 13: /* Return */ |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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changeset
|
499 case 32: /* Space */ |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
500 Event ev = new Event (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
501 ev.item = focusItem; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
502 sendEvent (focusItem.expanded ? DWT.Collapse :DWT.Expand, ev); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
503 focusItem.expanded = !focusItem.expanded; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
504 showItem (focusItem); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
505 break; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
506 case DWT.ARROW_UP: { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
507 int focusIndex = indexOf (focusItem); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
508 if (focusIndex > 0) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
509 focusItem.redraw (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
510 focusItem = items [focusIndex - 1]; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
511 focusItem.redraw (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
512 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
513 break; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
514 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
515 case DWT.ARROW_DOWN: { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
516 int focusIndex = indexOf (focusItem); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
517 if (focusIndex < itemCount - 1) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
518 focusItem.redraw (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
519 focusItem = items [focusIndex + 1]; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
520 focusItem.redraw (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
521 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
522 break; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
523 } |
66 | 524 |
525 default: | |
0
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
526 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
527 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
528 |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
529 void onMouseDown (Event event) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
530 if (event.button !is 1) return; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
531 int x = event.x; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
532 int y = event.y; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
533 for (int i = 0; i < itemCount; i++) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
534 ExpandItem item = items[i]; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
535 bool hover = item.x <= x && x < (item.x + item.width) && item.y <= y && y < (item.y + getBandHeight ()); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
536 if (hover && item !is focusItem) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
537 focusItem.redraw (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
538 focusItem = item; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
539 focusItem.redraw (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
540 forceFocus (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
541 break; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
542 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
543 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
544 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
545 |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
546 void onMouseUp (Event event) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
547 if (event.button !is 1) return; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
548 if (focusItem is null) return; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
549 int x = event.x; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
550 int y = event.y; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
551 bool hover = focusItem.x <= x && x < (focusItem.x + focusItem.width) && focusItem.y <= y && y < (focusItem.y + getBandHeight ()); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
552 if (hover) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
553 Event ev = new Event (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
554 ev.item = focusItem; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
555 notifyListeners (focusItem.expanded ? DWT.Collapse : DWT.Expand, ev); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
556 focusItem.expanded = !focusItem.expanded; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
557 showItem (focusItem); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
558 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
559 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
560 |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
561 void onPaint (Event event) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
562 bool hasFocus = isFocusControl (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
563 for (int i = 0; i < itemCount; i++) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
564 ExpandItem item = items [i]; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
565 item.drawItem (event.gc, hasFocus && item is focusItem); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
566 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
567 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
568 |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
569 void onResize () { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
570 Rectangle rect = getClientArea (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
571 int width = Math.max (0, rect.width - spacing * 2); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
572 for (int i = 0; i < itemCount; i++) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
573 ExpandItem item = items[i]; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
574 item.setBounds (0, 0, width, item.height, false, true); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
575 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
576 setScrollbar (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
577 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
578 |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
579 void onScroll (Event event) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
580 ScrollBar verticalBar = getVerticalBar (); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
581 if (verticalBar !is null) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
582 yCurrentScroll = verticalBar.getSelection(); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
583 layoutItems (0, false); |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
584 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
585 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
586 |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
587 void onTraverse (Event event) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
588 switch (event.detail) { |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
589 case DWT.TRAVERSE_TAB_NEXT: |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
590 case DWT.TRAVERSE_TAB_PREVIOUS: |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
591 event.doit = true; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
592 break; |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
593 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
594 } |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
595 |
380af2bdd8e5
Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff
changeset
|
596 } |