annotate dwt/widgets/ToolBar.d @ 7:e831403a80a9

Add 'cast' to casts
author Frank Benoit <benoit@tionex.de>
date Wed, 27 Aug 2008 14:30:35 +0200
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2006 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.ToolBar;
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12
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13 import dwt.dwthelper.utils;
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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.Point;
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19 import dwt.graphics.Rectangle;
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20 import dwt.internal.cocoa.NSRect;
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21 import dwt.internal.cocoa.NSView;
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22 import dwt.internal.cocoa.SWTView;
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23
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24 /**
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25 * Instances of this class support the layout of selectable
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26 * tool bar items.
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27 * <p>
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28 * The item children that may be added to instances of this class
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29 * must be of type <code>ToolItem</code>.
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30 * </p><p>
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31 * Note that although this class is a subclass of <code>Composite</code>,
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32 * it does not make sense to add <code>Control</code> children to it,
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33 * or set a layout on it.
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34 * </p><p>
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35 * <dl>
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36 * <dt><b>Styles:</b></dt>
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37 * <dd>FLAT, WRAP, RIGHT, HORIZONTAL, VERTICAL, SHADOW_OUT</dd>
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38 * <dt><b>Events:</b></dt>
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39 * <dd>(none)</dd>
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40 * </dl>
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41 * <p>
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42 * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified.
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43 * </p><p>
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44 * IMPORTANT: This class is <em>not</em> intended to be subclassed.
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45 * </p>
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46 */
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649b8e223d5a fix extends
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47 public class ToolBar : Composite {
0
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48 int itemCount;
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49 ToolItem [] items;
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50
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51 /**
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52 * Constructs a new instance of this class given its parent
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53 * and a style value describing its behavior and appearance.
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54 * <p>
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55 * The style value is either one of the style constants defined in
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56 * class <code>DWT</code> which is applicable to instances of this
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57 * class, or must be built by <em>bitwise OR</em>'ing together
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58 * (that is, using the <code>int</code> "|" operator) two or more
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59 * of those <code>DWT</code> style constants. The class description
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60 * lists the style constants that are applicable to the class.
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61 * Style bits are also inherited from superclasses.
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62 * </p>
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63 *
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64 * @param parent a composite control which will be the parent of the new instance (cannot be null)
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65 * @param style the style of control to construct
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66 *
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67 * @exception IllegalArgumentException <ul>
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68 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
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69 * </ul>
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70 * @exception DWTException <ul>
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71 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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72 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
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73 * </ul>
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74 *
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75 * @see DWT#FLAT
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76 * @see DWT#WRAP
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77 * @see DWT#RIGHT
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78 * @see DWT#HORIZONTAL
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79 * @see DWT#SHADOW_OUT
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80 * @see DWT#VERTICAL
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81 * @see Widget#checkSubclass()
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82 * @see Widget#getStyle()
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83 */
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84 public this (Composite parent, int style) {
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85 super (parent, checkStyle (style));
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86
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87 /*
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88 * Ensure that either of HORIZONTAL or VERTICAL is set.
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89 * NOTE: HORIZONTAL and VERTICAL have the same values
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90 * as H_SCROLL and V_SCROLL so it is necessary to first
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91 * clear these bits to avoid scroll bars and then reset
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92 * the bits using the original style supplied by the
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93 * programmer.
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94 */
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95 if ((style & DWT.VERTICAL) !is 0) {
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96 this.style |= DWT.VERTICAL;
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97 } else {
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98 this.style |= DWT.HORIZONTAL;
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99 }
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100 }
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101
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102 static int checkStyle (int style) {
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103 /*
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104 * Even though it is legal to create this widget
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105 * with scroll bars, they serve no useful purpose
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106 * because they do not automatically scroll the
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107 * widget's client area. The fix is to clear
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108 * the DWT style.
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109 */
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110 return style & ~(DWT.H_SCROLL | DWT.V_SCROLL);
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111 }
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112
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113 protected void checkSubclass () {
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114 if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS);
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115 }
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116
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117 public Point computeSize (int wHint, int hHint, bool changed) {
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118 checkWidget();
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119 int width = wHint, height = hHint;
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120 if (wHint is DWT.DEFAULT) width = 0x7FFFFFFF;
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121 if (hHint is DWT.DEFAULT) height = 0x7FFFFFFF;
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122 int [] result = layout (width, height, false);
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123 Point extent = new Point (result [1], result [2]);
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124 if (wHint !is DWT.DEFAULT) extent.x = wHint;
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125 if (hHint !is DWT.DEFAULT) extent.y = hHint;
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126 return extent;
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127 }
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128
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129 void createHandle () {
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130 SWTView widget = cast(SWTView)new SWTView().alloc();
0
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131 widget.initWithFrame(new NSRect());
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132 // widget.setDrawsBackground(false);
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133 widget.setTag(jniRef);
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134 view = widget;
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135 parent.contentView().addSubview_(widget);
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136 }
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137
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138 void createItem (ToolItem item, int index) {
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139 if (!(0 <= index && index <= itemCount)) error (DWT.ERROR_INVALID_RANGE);
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140 if (itemCount is items.length) {
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141 ToolItem [] newItems = new ToolItem [itemCount + 4];
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142 System.arraycopy (items, 0, newItems, 0, items.length);
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143 items = newItems;
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144 }
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145 item.createWidget();
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146 view.addSubview_(item.view);
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147 System.arraycopy (items, index, items, index + 1, itemCount++ - index);
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148 items [index] = item;
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149 relayout ();
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150 }
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151
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152 void createWidget () {
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153 super.createWidget ();
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154 items = new ToolItem [4];
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155 itemCount = 0;
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156 }
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157
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158 void destroyItem (ToolItem item) {
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159 int index = 0;
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160 while (index < itemCount) {
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161 if (items [index] is item) break;
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162 index++;
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163 }
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164 if (index is itemCount) return;
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165 System.arraycopy (items, index + 1, items, index, --itemCount - index);
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166 items [itemCount] = null;
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167 NSView nsItem = item.view;
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168 nsItem.removeFromSuperview();
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169 item.view = null;
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170 relayout ();
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171 }
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172
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173 void enableWidget(bool enabled) {
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174 super.enableWidget(enabled);
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175 for (int i = 0; i < itemCount; i++) {
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176 ToolItem item = items[i];
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177 if (item !is null) {
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178 item.enableWidget(enabled);
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179 }
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180 }
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181 }
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182
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183 public Rectangle getClientArea () {
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184 checkWidget();
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185 NSRect rect = view.bounds();
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186 return new Rectangle(cast(int)rect.x, cast(int)rect.y, cast(int)rect.width, cast(int)rect.height);
0
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187 }
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188
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189 /**
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190 * Returns the item at the given, zero-relative index in the
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191 * receiver. Throws an exception if the index is out of range.
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192 *
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193 * @param index the index of the item to return
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194 * @return the item at the given index
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195 *
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196 * @exception IllegalArgumentException <ul>
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197 * <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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198 * </ul>
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199 * @exception DWTException <ul>
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200 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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201 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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202 * </ul>
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203 */
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204 public ToolItem getItem (int index) {
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205 checkWidget();
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206 if (0 <= index && index < itemCount) return items [index];
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207 error (DWT.ERROR_INVALID_RANGE);
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208 return null;
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209 }
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210
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211 /**
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212 * Returns the item at the given point in the receiver
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213 * or null if no such item exists. The point is in the
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214 * coordinate system of the receiver.
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215 *
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216 * @param point the point used to locate the item
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217 * @return the item at the given point
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218 *
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219 * @exception IllegalArgumentException <ul>
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220 * <li>ERROR_NULL_ARGUMENT - if the point is null</li>
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221 * </ul>
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222 * @exception DWTException <ul>
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223 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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224 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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225 * </ul>
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226 */
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227 public ToolItem getItem (Point pt) {
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228 checkWidget();
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229 if (pt is null) error (DWT.ERROR_NULL_ARGUMENT);
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230 for (int i=0; i<itemCount; i++) {
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231 Rectangle rect = items [i].getBounds ();
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232 if (rect.contains (pt)) return items [i];
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233 }
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234 return null;
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235 }
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236
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237 /**
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238 * Returns the number of items contained in the receiver.
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239 *
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240 * @return the number of items
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241 *
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242 * @exception DWTException <ul>
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243 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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244 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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245 * </ul>
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246 */
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247 public int getItemCount () {
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248 checkWidget();
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249 return itemCount;
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250 }
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251
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252 /**
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253 * Returns an array of <code>ToolItem</code>s which are the items
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254 * in the receiver.
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255 * <p>
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256 * Note: This is not the actual structure used by the receiver
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257 * to maintain its list of items, so modifying the array will
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258 * not affect the receiver.
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259 * </p>
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260 *
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261 * @return the items in the receiver
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262 *
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263 * @exception DWTException <ul>
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264 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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265 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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266 * </ul>
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267 */
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268 public ToolItem [] getItems () {
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269 checkWidget();
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270 ToolItem [] result = new ToolItem [itemCount];
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271 System.arraycopy (items, 0, result, 0, itemCount);
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272 return result;
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273 }
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274
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275 /**
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276 * Returns the number of rows in the receiver. When
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277 * the receiver has the <code>WRAP</code> style, the
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278 * number of rows can be greater than one. Otherwise,
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279 * the number of rows is always one.
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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 getRowCount () {
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289 checkWidget();
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290 Rectangle rect = getClientArea ();
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291 return layout (rect.width, rect.height, false) [0];
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292 }
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293
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294 /**
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295 * Searches the receiver's list starting at the first item
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296 * (index 0) until an item is found that is equal to the
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297 * argument, and returns the index of that item. If no item
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298 * is found, returns -1.
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299 *
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300 * @param item the search item
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301 * @return the index of the item
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302 *
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303 * @exception IllegalArgumentException <ul>
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304 * <li>ERROR_NULL_ARGUMENT - if the tool item is null</li>
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305 * <li>ERROR_INVALID_ARGUMENT - if the tool item has been disposed</li>
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306 * </ul>
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307 * @exception DWTException <ul>
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308 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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309 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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310 * </ul>
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311 */
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312 public int indexOf (ToolItem item) {
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313 checkWidget();
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314 if (item is null) error (DWT.ERROR_NULL_ARGUMENT);
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315 if (item.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT);
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316 for (int i=0; i<itemCount; i++) {
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317 if (items [i] is item) return i;
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318 }
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319 return -1;
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320 }
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321
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322 int [] layoutHorizontal (int width, int height, bool resize) {
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323 int xSpacing = 0, ySpacing = 2;
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324 int marginWidth = 0, marginHeight = 0;
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325 int x = marginWidth, y = marginHeight;
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326 int maxX = 0, rows = 1;
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327 bool wrap = (style & DWT.WRAP) !is 0;
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328 int itemHeight = 0;
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329 Point [] sizes = new Point [itemCount];
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330 for (int i=0; i<itemCount; i++) {
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331 Point size = sizes [i] = items [i].computeSize ();
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332 itemHeight = Math.max (itemHeight, size.y);
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333 }
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334 for (int i=0; i<itemCount; i++) {
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335 ToolItem item = items [i];
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336 Point size = sizes [i];
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337 if (wrap && i !is 0 && x + size.x > width) {
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338 rows++;
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339 x = marginWidth;
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340 y += ySpacing + itemHeight;
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341 }
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342 if (resize) {
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343 item.setBounds (x, y, size.x, itemHeight);
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344 bool visible = x + size.x <= width && y + itemHeight <= height;
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345 item.setVisible (visible);
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346 Control control = item.control;
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347 if (control !is null) {
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348 int controlY = y + (itemHeight - size.y) / 2;
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349 control.setBounds (x, controlY, size.x, itemHeight - (controlY - y));
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350 }
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351 }
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352 x += xSpacing + size.x;
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353 maxX = Math.max (maxX, x);
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354 }
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355
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356 return new int [] {rows, maxX, y + itemHeight};
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357 }
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358
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359 int [] layoutVertical (int width, int height, bool resize) {
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360 int xSpacing = 2, ySpacing = 0;
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361 int marginWidth = 0, marginHeight = 0;
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362 int x = marginWidth, y = marginHeight;
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363 int maxY = 0, cols = 1;
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364 bool wrap = (style & DWT.WRAP) !is 0;
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365 int itemWidth = 0;
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366 Point [] sizes = new Point [itemCount];
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367 for (int i=0; i<itemCount; i++) {
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368 Point size = sizes [i] = items [i].computeSize ();
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369 itemWidth = Math.max (itemWidth, size.x);
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370 }
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371 for (int i=0; i<itemCount; i++) {
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372 ToolItem item = items [i];
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373 Point size = sizes [i];
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374 if (wrap && i !is 0 && y + size.y > height) {
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375 cols++;
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376 x += xSpacing + itemWidth;
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377 y = marginHeight;
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378 }
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379 if (resize) {
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380 item.setBounds (x, y, itemWidth, size.y);
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381 bool visible = x + itemWidth <= width && y + size.y <= height;
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382 item.setVisible (visible);
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383 Control control = item.control;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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384 if (control !is null) {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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385 int controlX = x + (itemWidth - size.x) / 2;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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386 control.setBounds (controlX, y, itemWidth - (controlX - x), size.y);
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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387 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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388 }
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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389 y += ySpacing + size.y;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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390 maxY = Math.max (maxY, y);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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391 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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392
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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393 return new int [] {cols, x + itemWidth, maxY};
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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394 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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395
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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396 int [] layout (int nWidth, int nHeight, bool resize) {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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397 if ((style & DWT.VERTICAL) !is 0) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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398 return layoutVertical (nWidth, nHeight, resize);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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399 } else {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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400 return layoutHorizontal (nWidth, nHeight, resize);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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401 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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402 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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403
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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404 void relayout () {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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405 if (drawCount !is 0) return;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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406 Rectangle rect = getClientArea ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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407 layout (rect.width, rect.height, true);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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408 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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409
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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410 void releaseChildren (bool destroy) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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411 if (items !is null) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
412 for (int i=0; i<itemCount; i++) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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413 ToolItem item = items [i];
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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414 if (item !is null && !item.isDisposed ()) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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415 item.release (false);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
416 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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417 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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418 itemCount = 0;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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419 items = null;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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420 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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421 super.releaseChildren (destroy);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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422 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
423
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
424 void removeControl (Control control) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
425 super.removeControl (control);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
426 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
427 ToolItem item = items [i];
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
428 if (item.control is control) item.setControl (null);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
429 }
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
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
432 int setBounds (int x, int y, int width, int height, bool move, bool resize) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
433 int result = super.setBounds (x, y, width, height, move, resize);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
434 if ((result & RESIZED) !is 0) relayout ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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435 return result;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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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 public void setRedraw (bool redraw) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
439 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
440 super.setRedraw (redraw);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
441 if (redraw && drawCount is 0) relayout();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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442 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
443
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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444 }