Mercurial > projects > dwt-mac
annotate dwt/widgets/ToolBar.d @ 84:555527e6d914
Ported dwt.widgets.ToolBar
author | Jacob Carlborg <doob@me.com> |
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date | Sun, 28 Dec 2008 19:37:49 +0100 |
parents | cfa563df4fdd |
children | 844f65808a36 |
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 |
84 | 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.ToolBar; |
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15 |
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16 import dwt.dwthelper.utils; |
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17 |
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18 |
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19 import dwt.DWT; |
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20 import dwt.DWTException; |
45 | 21 import dwt.accessibility.ACC; |
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22 import dwt.graphics.Point; |
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23 import dwt.graphics.Rectangle; |
45 | 24 import dwt.internal.cocoa.NSArray; |
25 import dwt.internal.cocoa.NSButton; | |
26 import dwt.internal.cocoa.NSFont; | |
27 import dwt.internal.cocoa.NSMutableArray; | |
28 import dwt.internal.cocoa.NSNumber; | |
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29 import dwt.internal.cocoa.NSRect; |
45 | 30 import dwt.internal.cocoa.NSString; |
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31 import dwt.internal.cocoa.NSView; |
45 | 32 import dwt.internal.cocoa.OS; |
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33 import dwt.internal.cocoa.SWTView; |
84 | 34 import cocoa = dwt.internal.cocoa.id; |
35 | |
36 import objc = dwt.internal.objc.runtime; | |
37 import dwt.widgets.Composite; | |
38 import dwt.widgets.Control; | |
39 import dwt.widgets.ToolItem; | |
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40 |
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41 /** |
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42 * Instances of this class support the layout of selectable |
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43 * tool bar items. |
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44 * <p> |
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45 * The item children that may be added to instances of this class |
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46 * must be of type <code>ToolItem</code>. |
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47 * </p><p> |
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48 * Note that although this class is a subclass of <code>Composite</code>, |
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49 * it does not make sense to add <code>Control</code> children to it, |
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50 * or set a layout on it. |
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51 * </p><p> |
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52 * <dl> |
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53 * <dt><b>Styles:</b></dt> |
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54 * <dd>FLAT, WRAP, RIGHT, HORIZONTAL, VERTICAL, SHADOW_OUT</dd> |
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55 * <dt><b>Events:</b></dt> |
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56 * <dd>(none)</dd> |
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57 * </dl> |
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58 * <p> |
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59 * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. |
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60 * </p><p> |
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61 * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
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62 * </p> |
45 | 63 * |
64 * @see <a href="http://www.eclipse.org/swt/snippets/#toolbar">ToolBar, ToolItem snippets</a> | |
65 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: ControlExample</a> | |
66 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
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67 */ |
3 | 68 public class ToolBar : Composite { |
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69 int itemCount; |
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70 ToolItem [] items; |
45 | 71 NSArray accessibilityAttributes = null; |
72 | |
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73 /** |
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74 * Constructs a new instance of this class given its parent |
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75 * and a style value describing its behavior and appearance. |
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76 * <p> |
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77 * The style value is either one of the style constants defined in |
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78 * class <code>DWT</code> which is applicable to instances of this |
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79 * class, or must be built by <em>bitwise OR</em>'ing together |
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80 * (that is, using the <code>int</code> "|" operator) two or more |
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81 * of those <code>DWT</code> style constants. The class description |
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82 * lists the style constants that are applicable to the class. |
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83 * Style bits are also inherited from superclasses. |
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84 * </p> |
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85 * |
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86 * @param parent a composite control which will be the parent of the new instance (cannot be null) |
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87 * @param style the style of control to construct |
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88 * |
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89 * @exception IllegalArgumentException <ul> |
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90 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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91 * </ul> |
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92 * @exception DWTException <ul> |
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93 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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94 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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95 * </ul> |
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96 * |
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97 * @see DWT#FLAT |
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98 * @see DWT#WRAP |
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99 * @see DWT#RIGHT |
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100 * @see DWT#HORIZONTAL |
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101 * @see DWT#SHADOW_OUT |
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102 * @see DWT#VERTICAL |
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103 * @see Widget#checkSubclass() |
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104 * @see Widget#getStyle() |
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105 */ |
5 | 106 public this (Composite parent, int style) { |
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107 super (parent, checkStyle (style)); |
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108 |
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109 /* |
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110 * Ensure that either of HORIZONTAL or VERTICAL is set. |
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111 * NOTE: HORIZONTAL and VERTICAL have the same values |
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112 * as H_SCROLL and V_SCROLL so it is necessary to first |
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113 * clear these bits to avoid scroll bars and then reset |
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114 * the bits using the original style supplied by the |
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115 * programmer. |
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116 */ |
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117 if ((style & DWT.VERTICAL) !is 0) { |
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118 this.style |= DWT.VERTICAL; |
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119 } else { |
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120 this.style |= DWT.HORIZONTAL; |
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121 } |
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122 } |
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123 |
84 | 124 objc.id accessibilityAttributeNames(objc.id id, objc.SEL sel) { |
45 | 125 |
126 if (accessibilityAttributes is null) { | |
127 NSMutableArray ourAttributes = NSMutableArray.arrayWithCapacity(10); | |
128 ourAttributes.addObject(OS.NSAccessibilityRoleAttribute); | |
129 ourAttributes.addObject(OS.NSAccessibilityRoleDescriptionAttribute); | |
130 ourAttributes.addObject(OS.NSAccessibilityParentAttribute); | |
131 ourAttributes.addObject(OS.NSAccessibilityPositionAttribute); | |
132 ourAttributes.addObject(OS.NSAccessibilitySizeAttribute); | |
133 ourAttributes.addObject(OS.NSAccessibilityWindowAttribute); | |
134 ourAttributes.addObject(OS.NSAccessibilityTopLevelUIElementAttribute); | |
135 ourAttributes.addObject(OS.NSAccessibilityHelpAttribute); | |
136 ourAttributes.addObject(OS.NSAccessibilityEnabledAttribute); | |
137 ourAttributes.addObject(OS.NSAccessibilityFocusedAttribute); | |
138 ourAttributes.addObject(OS.NSAccessibilityChildrenAttribute); | |
139 | |
140 if (accessible !is null) { | |
141 // See if the accessible will override or augment the standard list. | |
142 // Help, title, and description can be overridden. | |
143 NSMutableArray extraAttributes = NSMutableArray.arrayWithCapacity(3); | |
144 extraAttributes.addObject(OS.NSAccessibilityHelpAttribute); | |
145 extraAttributes.addObject(OS.NSAccessibilityDescriptionAttribute); | |
146 extraAttributes.addObject(OS.NSAccessibilityTitleAttribute); | |
147 | |
148 for (int i = extraAttributes.count() - 1; i >= 0; i--) { | |
149 NSString attribute = new NSString(extraAttributes.objectAtIndex(i).id); | |
150 if (accessible.internal_accessibilityAttributeValue(attribute, ACC.CHILDID_SELF) !is null) { | |
151 ourAttributes.addObject(extraAttributes.objectAtIndex(i)); | |
152 } | |
153 } | |
154 } | |
155 | |
156 accessibilityAttributes = ourAttributes; | |
157 accessibilityAttributes.retain(); | |
158 } | |
159 | |
160 return accessibilityAttributes.id; | |
161 } | |
162 | |
84 | 163 objc.id accessibilityAttributeValue (objc.id id, objc.SEL sel, objc.id arg0) { |
45 | 164 NSString nsAttributeName = new NSString(arg0); |
165 | |
166 if (accessible !is null) { | |
84 | 167 cocoa.id returnObject = accessible.internal_accessibilityAttributeValue(nsAttributeName, ACC.CHILDID_SELF); |
45 | 168 if (returnObject !is null) return returnObject.id; |
169 } | |
170 | |
171 if (nsAttributeName.isEqualToString (OS.NSAccessibilityRoleAttribute) || nsAttributeName.isEqualToString (OS.NSAccessibilityRoleDescriptionAttribute)) { | |
172 NSString role = OS.NSAccessibilityToolbarRole; | |
173 | |
174 if (nsAttributeName.isEqualToString (OS.NSAccessibilityRoleAttribute)) | |
175 return role.id; | |
176 else { | |
84 | 177 objc.id roleDescription = OS.NSAccessibilityRoleDescription(role.id, null); |
45 | 178 return roleDescription; |
179 } | |
180 } else if (nsAttributeName.isEqualToString(OS.NSAccessibilityEnabledAttribute)) { | |
181 return NSNumber.numberWithBool(isEnabled()).id; | |
182 } else if (nsAttributeName.isEqualToString(OS.NSAccessibilityFocusedAttribute)) { | |
183 bool focused = (view.id is view.window().firstResponder().id); | |
184 return NSNumber.numberWithBool(focused).id; | |
185 } | |
186 | |
187 return super.accessibilityAttributeValue(id, sel, arg0); | |
188 } | |
189 | |
84 | 190 bool accessibilityIsIgnored(objc.id id, objc.SELs sel) { |
45 | 191 // Toolbars aren't ignored. |
192 return false; | |
193 } | |
194 | |
0
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195 static int checkStyle (int style) { |
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196 /* |
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197 * Even though it is legal to create this widget |
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198 * with scroll bars, they serve no useful purpose |
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199 * because they do not automatically scroll the |
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200 * widget's client area. The fix is to clear |
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201 * the DWT style. |
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202 */ |
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203 return style & ~(DWT.H_SCROLL | DWT.V_SCROLL); |
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204 } |
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205 |
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206 protected void checkSubclass () { |
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207 if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); |
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208 } |
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209 |
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210 public Point computeSize (int wHint, int hHint, bool changed) { |
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211 checkWidget(); |
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212 int width = wHint, height = hHint; |
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213 if (wHint is DWT.DEFAULT) width = 0x7FFFFFFF; |
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214 if (hHint is DWT.DEFAULT) height = 0x7FFFFFFF; |
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215 int [] result = layout (width, height, false); |
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216 Point extent = new Point (result [1], result [2]); |
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217 if (wHint !is DWT.DEFAULT) extent.x = wHint; |
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218 if (hHint !is DWT.DEFAULT) extent.y = hHint; |
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219 return extent; |
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220 } |
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221 |
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222 void createHandle () { |
84 | 223 NSView widget = cast(NSView)(new SWTView()).alloc(); |
46
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224 widget.initWithFrame(NSRect()); |
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225 // widget.setDrawsBackground(false); |
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226 view = widget; |
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227 } |
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228 |
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229 void createItem (ToolItem item, int index) { |
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230 if (!(0 <= index && index <= itemCount)) error (DWT.ERROR_INVALID_RANGE); |
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231 if (itemCount is items.length) { |
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232 ToolItem [] newItems = new ToolItem [itemCount + 4]; |
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233 System.arraycopy (items, 0, newItems, 0, items.length); |
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234 items = newItems; |
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235 } |
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236 item.createWidget(); |
45 | 237 view.addSubview(item.view); |
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238 System.arraycopy (items, index, items, index + 1, itemCount++ - index); |
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239 items [index] = item; |
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240 relayout (); |
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241 } |
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242 |
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243 void createWidget () { |
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244 super.createWidget (); |
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245 items = new ToolItem [4]; |
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246 itemCount = 0; |
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247 } |
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248 |
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249 void destroyItem (ToolItem item) { |
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250 int index = 0; |
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251 while (index < itemCount) { |
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252 if (items [index] is item) break; |
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253 index++; |
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254 } |
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255 if (index is itemCount) return; |
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256 System.arraycopy (items, index + 1, items, index, --itemCount - index); |
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257 items [itemCount] = null; |
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258 NSView nsItem = item.view; |
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259 nsItem.removeFromSuperview(); |
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260 item.view = null; |
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261 relayout (); |
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262 } |
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263 |
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264 void enableWidget(bool enabled) { |
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265 super.enableWidget(enabled); |
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266 for (int i = 0; i < itemCount; i++) { |
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267 ToolItem item = items[i]; |
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268 if (item !is null) { |
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269 item.enableWidget(enabled); |
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270 } |
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271 } |
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272 } |
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273 |
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274 public Rectangle getClientArea () { |
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275 checkWidget(); |
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276 NSRect rect = view.bounds(); |
7 | 277 return new Rectangle(cast(int)rect.x, cast(int)rect.y, cast(int)rect.width, cast(int)rect.height); |
0
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278 } |
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279 |
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280 /** |
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281 * Returns the item at the given, zero-relative index in the |
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282 * receiver. Throws an exception if the index is out of range. |
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283 * |
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284 * @param index the index of the item to return |
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285 * @return the item at the given index |
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286 * |
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287 * @exception IllegalArgumentException <ul> |
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288 * <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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289 * </ul> |
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290 * @exception DWTException <ul> |
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291 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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292 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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293 * </ul> |
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294 */ |
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295 public ToolItem getItem (int index) { |
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296 checkWidget(); |
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297 if (0 <= index && index < itemCount) return items [index]; |
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298 error (DWT.ERROR_INVALID_RANGE); |
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299 return null; |
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300 } |
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301 |
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302 /** |
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303 * Returns the item at the given point in the receiver |
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304 * or null if no such item exists. The point is in the |
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305 * coordinate system of the receiver. |
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306 * |
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307 * @param point the point used to locate the item |
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308 * @return the item at the given point |
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309 * |
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310 * @exception IllegalArgumentException <ul> |
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311 * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
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312 * </ul> |
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313 * @exception DWTException <ul> |
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314 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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315 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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316 * </ul> |
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317 */ |
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318 public ToolItem getItem (Point pt) { |
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319 checkWidget(); |
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320 if (pt is null) error (DWT.ERROR_NULL_ARGUMENT); |
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321 for (int i=0; i<itemCount; i++) { |
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322 Rectangle rect = items [i].getBounds (); |
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323 if (rect.contains (pt)) return items [i]; |
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324 } |
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325 return null; |
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326 } |
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327 |
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328 /** |
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329 * Returns the number of items contained in the receiver. |
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330 * |
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331 * @return the number of items |
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332 * |
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333 * @exception DWTException <ul> |
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334 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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335 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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336 * </ul> |
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337 */ |
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338 public int getItemCount () { |
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339 checkWidget(); |
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340 return itemCount; |
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341 } |
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342 |
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343 /** |
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344 * Returns an array of <code>ToolItem</code>s which are the items |
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345 * in the receiver. |
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346 * <p> |
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347 * Note: This is not the actual structure used by the receiver |
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348 * to maintain its list of items, so modifying the array will |
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349 * not affect the receiver. |
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350 * </p> |
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351 * |
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352 * @return the items in the receiver |
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353 * |
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354 * @exception DWTException <ul> |
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355 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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356 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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357 * </ul> |
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358 */ |
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359 public ToolItem [] getItems () { |
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360 checkWidget(); |
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361 ToolItem [] result = new ToolItem [itemCount]; |
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362 System.arraycopy (items, 0, result, 0, itemCount); |
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363 return result; |
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364 } |
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365 |
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366 /** |
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367 * Returns the number of rows in the receiver. When |
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368 * the receiver has the <code>WRAP</code> style, the |
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369 * number of rows can be greater than one. Otherwise, |
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370 * the number of rows is always one. |
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371 * |
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372 * @return the number of items |
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373 * |
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374 * @exception DWTException <ul> |
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375 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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376 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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377 * </ul> |
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378 */ |
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379 public int getRowCount () { |
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380 checkWidget(); |
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381 Rectangle rect = getClientArea (); |
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382 return layout (rect.width, rect.height, false) [0]; |
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383 } |
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384 |
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385 /** |
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386 * Searches the receiver's list starting at the first item |
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387 * (index 0) until an item is found that is equal to the |
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388 * argument, and returns the index of that item. If no item |
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389 * is found, returns -1. |
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390 * |
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391 * @param item the search item |
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392 * @return the index of the item |
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393 * |
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394 * @exception IllegalArgumentException <ul> |
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395 * <li>ERROR_NULL_ARGUMENT - if the tool item is null</li> |
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396 * <li>ERROR_INVALID_ARGUMENT - if the tool item has been disposed</li> |
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397 * </ul> |
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398 * @exception DWTException <ul> |
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399 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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400 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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401 * </ul> |
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402 */ |
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403 public int indexOf (ToolItem item) { |
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404 checkWidget(); |
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405 if (item is null) error (DWT.ERROR_NULL_ARGUMENT); |
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406 if (item.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); |
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407 for (int i=0; i<itemCount; i++) { |
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408 if (items [i] is item) return i; |
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409 } |
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410 return -1; |
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411 } |
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412 |
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413 int [] layoutHorizontal (int width, int height, bool resize) { |
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414 int xSpacing = 0, ySpacing = 2; |
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415 int marginWidth = 0, marginHeight = 0; |
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416 int x = marginWidth, y = marginHeight; |
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417 int maxX = 0, rows = 1; |
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418 bool wrap = (style & DWT.WRAP) !is 0; |
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419 int itemHeight = 0; |
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420 Point [] sizes = new Point [itemCount]; |
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421 for (int i=0; i<itemCount; i++) { |
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422 Point size = sizes [i] = items [i].computeSize (); |
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423 itemHeight = Math.max (itemHeight, size.y); |
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424 } |
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425 for (int i=0; i<itemCount; i++) { |
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426 ToolItem item = items [i]; |
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427 Point size = sizes [i]; |
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428 if (wrap && i !is 0 && x + size.x > width) { |
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429 rows++; |
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430 x = marginWidth; |
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431 y += ySpacing + itemHeight; |
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432 } |
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433 if (resize) { |
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434 item.setBounds (x, y, size.x, itemHeight); |
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435 bool visible = x + size.x <= width && y + itemHeight <= height; |
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436 item.setVisible (visible); |
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437 Control control = item.control; |
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438 if (control !is null) { |
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439 int controlY = y + (itemHeight - size.y) / 2; |
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440 control.setBounds (x, controlY, size.x, itemHeight - (controlY - y)); |
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441 } |
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442 } |
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443 x += xSpacing + size.x; |
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444 maxX = Math.max (maxX, x); |
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445 } |
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446 |
84 | 447 return [rows, maxX, y + itemHeight]; |
0
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448 } |
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449 |
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450 int [] layoutVertical (int width, int height, bool resize) { |
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451 int xSpacing = 2, ySpacing = 0; |
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452 int marginWidth = 0, marginHeight = 0; |
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453 int x = marginWidth, y = marginHeight; |
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454 int maxY = 0, cols = 1; |
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455 bool wrap = (style & DWT.WRAP) !is 0; |
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456 int itemWidth = 0; |
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457 Point [] sizes = new Point [itemCount]; |
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458 for (int i=0; i<itemCount; i++) { |
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459 Point size = sizes [i] = items [i].computeSize (); |
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460 itemWidth = Math.max (itemWidth, size.x); |
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461 } |
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462 for (int i=0; i<itemCount; i++) { |
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463 ToolItem item = items [i]; |
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464 Point size = sizes [i]; |
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465 if (wrap && i !is 0 && y + size.y > height) { |
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466 cols++; |
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467 x += xSpacing + itemWidth; |
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468 y = marginHeight; |
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469 } |
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470 if (resize) { |
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471 item.setBounds (x, y, itemWidth, size.y); |
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472 bool visible = x + itemWidth <= width && y + size.y <= height; |
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473 item.setVisible (visible); |
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474 Control control = item.control; |
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475 if (control !is null) { |
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476 int controlX = x + (itemWidth - size.x) / 2; |
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477 control.setBounds (controlX, y, itemWidth - (controlX - x), size.y); |
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478 } |
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479 } |
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480 y += ySpacing + size.y; |
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481 maxY = Math.max (maxY, y); |
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482 } |
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483 |
84 | 484 return [cols, x + itemWidth, maxY]; |
0
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485 } |
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486 |
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487 int [] layout (int nWidth, int nHeight, bool resize) { |
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488 if ((style & DWT.VERTICAL) !is 0) { |
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489 return layoutVertical (nWidth, nHeight, resize); |
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490 } else { |
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491 return layoutHorizontal (nWidth, nHeight, resize); |
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492 } |
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493 } |
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494 |
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495 void relayout () { |
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496 if (drawCount !is 0) return; |
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497 Rectangle rect = getClientArea (); |
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498 layout (rect.width, rect.height, true); |
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499 } |
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500 |
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501 void releaseChildren (bool destroy) { |
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502 if (items !is null) { |
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503 for (int i=0; i<itemCount; i++) { |
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504 ToolItem item = items [i]; |
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505 if (item !is null && !item.isDisposed ()) { |
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506 item.release (false); |
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507 } |
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|
508 } |
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509 itemCount = 0; |
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510 items = null; |
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511 } |
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512 super.releaseChildren (destroy); |
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513 } |
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514 |
45 | 515 void releaseHandle () { |
516 super.releaseHandle (); | |
517 if (accessibilityAttributes !is null) accessibilityAttributes.release(); | |
518 accessibilityAttributes = null; | |
519 } | |
520 | |
0
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521 void removeControl (Control control) { |
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522 super.removeControl (control); |
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523 for (int i=0; i<itemCount; i++) { |
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524 ToolItem item = items [i]; |
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525 if (item.control is control) item.setControl (null); |
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526 } |
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|
527 } |
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528 |
45 | 529 void resized () { |
530 super.resized (); | |
531 relayout (); | |
532 } | |
533 | |
534 void setFont(NSFont font) { | |
535 for (int i = 0; i < itemCount; i++) { | |
536 ToolItem item = items[i]; | |
84 | 537 if (item.button !is null) (cast(NSButton)item.button).setAttributedTitle(item.createString()); |
45 | 538 } |
0
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|
539 } |
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|
540 |
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|
541 public void setRedraw (bool redraw) { |
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542 checkWidget(); |
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543 super.setRedraw (redraw); |
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|
544 if (redraw && drawCount is 0) relayout(); |
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|
545 } |
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|
546 |
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547 } |