Mercurial > projects > dwt-mac
annotate dwt/widgets/ToolBar.d @ 7:e831403a80a9
Add 'cast' to casts
author | Frank Benoit <benoit@tionex.de> |
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date | Wed, 27 Aug 2008 14:30:35 +0200 |
parents | 1a8b3cb347e0 |
children | d8635bb48c7c |
rev | line source |
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0
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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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14 |
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15 |
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16 import dwt.DWT; |
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17 import dwt.DWTException; |
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18 import dwt.graphics.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 */ |
3 | 47 public class ToolBar : Composite { |
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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 */ |
5 | 84 public this (Composite parent, int style) { |
0
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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 () { |
7 | 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(); |
7 | 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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384 if (control !is null) { |
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385 int controlX = x + (itemWidth - size.x) / 2; |
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386 control.setBounds (controlX, y, itemWidth - (controlX - x), size.y); |
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387 } |
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388 } |
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389 y += ySpacing + size.y; |
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390 maxY = Math.max (maxY, y); |
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391 } |
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392 |
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393 return new int [] {cols, x + itemWidth, maxY}; |
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394 } |
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395 |
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396 int [] layout (int nWidth, int nHeight, bool resize) { |
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397 if ((style & DWT.VERTICAL) !is 0) { |
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398 return layoutVertical (nWidth, nHeight, resize); |
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399 } else { |
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400 return layoutHorizontal (nWidth, nHeight, resize); |
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401 } |
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402 } |
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403 |
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404 void relayout () { |
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405 if (drawCount !is 0) return; |
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406 Rectangle rect = getClientArea (); |
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407 layout (rect.width, rect.height, true); |
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408 } |
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409 |
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410 void releaseChildren (bool destroy) { |
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411 if (items !is null) { |
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412 for (int i=0; i<itemCount; i++) { |
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413 ToolItem item = items [i]; |
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414 if (item !is null && !item.isDisposed ()) { |
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415 item.release (false); |
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416 } |
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417 } |
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418 itemCount = 0; |
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419 items = null; |
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420 } |
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421 super.releaseChildren (destroy); |
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422 } |
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423 |
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424 void removeControl (Control control) { |
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425 super.removeControl (control); |
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426 for (int i=0; i<itemCount; i++) { |
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427 ToolItem item = items [i]; |
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428 if (item.control is control) item.setControl (null); |
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429 } |
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|
430 } |
380af2bdd8e5
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431 |
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432 int setBounds (int x, int y, int width, int height, bool move, bool resize) { |
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433 int result = super.setBounds (x, y, width, height, move, resize); |
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434 if ((result & RESIZED) !is 0) relayout (); |
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435 return result; |
380af2bdd8e5
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|
436 } |
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parents:
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|
437 |
380af2bdd8e5
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438 public void setRedraw (bool redraw) { |
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439 checkWidget(); |
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440 super.setRedraw (redraw); |
380af2bdd8e5
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441 if (redraw && drawCount is 0) relayout(); |
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442 } |
380af2bdd8e5
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parents:
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|
443 |
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444 } |