Mercurial > projects > dwt-mac
annotate dwt/widgets/ToolBar.d @ 156:969e7de37c3d default tip
Fixes to get dwt to work with dmd and ldc
author | Jacob Carlborg <doob@me.com> |
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date | Wed, 08 Jul 2009 21:56:44 +0200 |
parents | 63a09873578e |
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rev | line source |
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45 | 1 /******************************************************************************* |
2 * Copyright (c) 2000, 2008 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 |
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 |
123 | 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 { |
90 | 69 |
70 alias Composite.computeSize computeSize; | |
71 alias Composite.createHandle createHandle; | |
72 alias Composite.forceFocus forceFocus; | |
73 alias Composite.setBounds setBounds; | |
74 alias Composite.setToolTipText setToolTipText; | |
75 | |
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76 int itemCount; |
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77 ToolItem [] items; |
45 | 78 NSArray accessibilityAttributes = null; |
79 | |
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80 /** |
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81 * Constructs a new instance of this class given its parent |
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82 * and a style value describing its behavior and appearance. |
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83 * <p> |
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84 * The style value is either one of the style constants defined in |
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85 * class <code>DWT</code> which is applicable to instances of this |
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86 * class, or must be built by <em>bitwise OR</em>'ing together |
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87 * (that is, using the <code>int</code> "|" operator) two or more |
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88 * of those <code>DWT</code> style constants. The class description |
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89 * lists the style constants that are applicable to the class. |
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90 * Style bits are also inherited from superclasses. |
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91 * </p> |
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92 * |
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93 * @param parent a composite control which will be the parent of the new instance (cannot be null) |
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94 * @param style the style of control to construct |
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95 * |
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96 * @exception IllegalArgumentException <ul> |
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97 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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98 * </ul> |
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99 * @exception DWTException <ul> |
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100 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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101 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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102 * </ul> |
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103 * |
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104 * @see DWT#FLAT |
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105 * @see DWT#WRAP |
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106 * @see DWT#RIGHT |
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107 * @see DWT#HORIZONTAL |
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108 * @see DWT#SHADOW_OUT |
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109 * @see DWT#VERTICAL |
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110 * @see Widget#checkSubclass() |
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111 * @see Widget#getStyle() |
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112 */ |
5 | 113 public this (Composite parent, int style) { |
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114 super (parent, checkStyle (style)); |
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115 |
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116 /* |
123 | 117 * Ensure that either of HORIZONTAL or VERTICAL is set. |
118 * NOTE: HORIZONTAL and VERTICAL have the same values | |
119 * as H_SCROLL and V_SCROLL so it is necessary to first | |
120 * clear these bits to avoid scroll bars and then reset | |
121 * the bits using the original style supplied by the | |
122 * programmer. | |
123 */ | |
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124 if ((style & DWT.VERTICAL) !is 0) { |
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125 this.style |= DWT.VERTICAL; |
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126 } else { |
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127 this.style |= DWT.HORIZONTAL; |
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128 } |
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129 } |
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130 |
84 | 131 objc.id accessibilityAttributeNames(objc.id id, objc.SEL sel) { |
45 | 132 |
133 if (accessibilityAttributes is null) { | |
134 NSMutableArray ourAttributes = NSMutableArray.arrayWithCapacity(10); | |
135 ourAttributes.addObject(OS.NSAccessibilityRoleAttribute); | |
136 ourAttributes.addObject(OS.NSAccessibilityRoleDescriptionAttribute); | |
137 ourAttributes.addObject(OS.NSAccessibilityParentAttribute); | |
138 ourAttributes.addObject(OS.NSAccessibilityPositionAttribute); | |
139 ourAttributes.addObject(OS.NSAccessibilitySizeAttribute); | |
140 ourAttributes.addObject(OS.NSAccessibilityWindowAttribute); | |
141 ourAttributes.addObject(OS.NSAccessibilityTopLevelUIElementAttribute); | |
142 ourAttributes.addObject(OS.NSAccessibilityHelpAttribute); | |
143 ourAttributes.addObject(OS.NSAccessibilityEnabledAttribute); | |
144 ourAttributes.addObject(OS.NSAccessibilityFocusedAttribute); | |
145 ourAttributes.addObject(OS.NSAccessibilityChildrenAttribute); | |
123 | 146 |
45 | 147 if (accessible !is null) { |
148 // See if the accessible will override or augment the standard list. | |
149 // Help, title, and description can be overridden. | |
150 NSMutableArray extraAttributes = NSMutableArray.arrayWithCapacity(3); | |
151 extraAttributes.addObject(OS.NSAccessibilityHelpAttribute); | |
152 extraAttributes.addObject(OS.NSAccessibilityDescriptionAttribute); | |
153 extraAttributes.addObject(OS.NSAccessibilityTitleAttribute); | |
123 | 154 |
45 | 155 for (int i = extraAttributes.count() - 1; i >= 0; i--) { |
156 NSString attribute = new NSString(extraAttributes.objectAtIndex(i).id); | |
157 if (accessible.internal_accessibilityAttributeValue(attribute, ACC.CHILDID_SELF) !is null) { | |
158 ourAttributes.addObject(extraAttributes.objectAtIndex(i)); | |
159 } | |
160 } | |
161 } | |
162 | |
163 accessibilityAttributes = ourAttributes; | |
164 accessibilityAttributes.retain(); | |
165 } | |
166 | |
167 return accessibilityAttributes.id; | |
168 } | |
169 | |
84 | 170 objc.id accessibilityAttributeValue (objc.id id, objc.SEL sel, objc.id arg0) { |
45 | 171 NSString nsAttributeName = new NSString(arg0); |
172 | |
173 if (accessible !is null) { | |
84 | 174 cocoa.id returnObject = accessible.internal_accessibilityAttributeValue(nsAttributeName, ACC.CHILDID_SELF); |
45 | 175 if (returnObject !is null) return returnObject.id; |
176 } | |
177 | |
178 if (nsAttributeName.isEqualToString (OS.NSAccessibilityRoleAttribute) || nsAttributeName.isEqualToString (OS.NSAccessibilityRoleDescriptionAttribute)) { | |
179 NSString role = OS.NSAccessibilityToolbarRole; | |
123 | 180 |
45 | 181 if (nsAttributeName.isEqualToString (OS.NSAccessibilityRoleAttribute)) |
182 return role.id; | |
183 else { | |
84 | 184 objc.id roleDescription = OS.NSAccessibilityRoleDescription(role.id, null); |
45 | 185 return roleDescription; |
186 } | |
187 } else if (nsAttributeName.isEqualToString(OS.NSAccessibilityEnabledAttribute)) { | |
188 return NSNumber.numberWithBool(isEnabled()).id; | |
189 } else if (nsAttributeName.isEqualToString(OS.NSAccessibilityFocusedAttribute)) { | |
190 bool focused = (view.id is view.window().firstResponder().id); | |
191 return NSNumber.numberWithBool(focused).id; | |
192 } | |
193 | |
194 return super.accessibilityAttributeValue(id, sel, arg0); | |
195 } | |
196 | |
85 | 197 bool accessibilityIsIgnored(objc.id id, objc.SEL sel) { |
45 | 198 // Toolbars aren't ignored. |
199 return false; | |
200 } | |
201 | |
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202 static int checkStyle (int style) { |
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203 /* |
123 | 204 * Even though it is legal to create this widget |
205 * with scroll bars, they serve no useful purpose | |
206 * because they do not automatically scroll the | |
207 * widget's client area. The fix is to clear | |
208 * the DWT style. | |
209 */ | |
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210 return style & ~(DWT.H_SCROLL | DWT.V_SCROLL); |
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211 } |
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212 |
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213 protected void checkSubclass () { |
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214 if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); |
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215 } |
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216 |
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217 public Point computeSize (int wHint, int hHint, bool changed) { |
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218 checkWidget(); |
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219 int width = wHint, height = hHint; |
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220 if (wHint is DWT.DEFAULT) width = 0x7FFFFFFF; |
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221 if (hHint is DWT.DEFAULT) height = 0x7FFFFFFF; |
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222 int [] result = layout (width, height, false); |
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223 Point extent = new Point (result [1], result [2]); |
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224 if (wHint !is DWT.DEFAULT) extent.x = wHint; |
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225 if (hHint !is DWT.DEFAULT) extent.y = hHint; |
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226 return extent; |
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227 } |
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228 |
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229 void createHandle () { |
84 | 230 NSView widget = cast(NSView)(new SWTView()).alloc(); |
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231 widget.initWithFrame(NSRect()); |
123 | 232 // widget.setDrawsBackground(false); |
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233 view = widget; |
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234 } |
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235 |
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236 void createItem (ToolItem item, int index) { |
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237 if (!(0 <= index && index <= itemCount)) error (DWT.ERROR_INVALID_RANGE); |
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238 if (itemCount is items.length) { |
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239 ToolItem [] newItems = new ToolItem [itemCount + 4]; |
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240 System.arraycopy (items, 0, newItems, 0, items.length); |
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241 items = newItems; |
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242 } |
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243 item.createWidget(); |
45 | 244 view.addSubview(item.view); |
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245 System.arraycopy (items, index, items, index + 1, itemCount++ - index); |
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246 items [index] = item; |
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247 relayout (); |
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248 } |
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249 |
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250 void createWidget () { |
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251 super.createWidget (); |
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252 items = new ToolItem [4]; |
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253 itemCount = 0; |
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254 } |
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255 |
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256 void destroyItem (ToolItem item) { |
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257 int index = 0; |
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258 while (index < itemCount) { |
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259 if (items [index] is item) break; |
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260 index++; |
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261 } |
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262 if (index is itemCount) return; |
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263 System.arraycopy (items, index + 1, items, index, --itemCount - index); |
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264 items [itemCount] = null; |
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265 NSView nsItem = item.view; |
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266 nsItem.removeFromSuperview(); |
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267 item.view = null; |
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268 relayout (); |
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269 } |
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270 |
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271 void enableWidget(bool enabled) { |
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272 super.enableWidget(enabled); |
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273 for (int i = 0; i < itemCount; i++) { |
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274 ToolItem item = items[i]; |
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275 if (item !is null) { |
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276 item.enableWidget(enabled); |
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277 } |
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278 } |
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279 } |
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280 |
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281 public Rectangle getClientArea () { |
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282 checkWidget(); |
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283 NSRect rect = view.bounds(); |
7 | 284 return new Rectangle(cast(int)rect.x, cast(int)rect.y, cast(int)rect.width, cast(int)rect.height); |
0
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285 } |
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286 |
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287 /** |
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288 * Returns the item at the given, zero-relative index in the |
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289 * receiver. Throws an exception if the index is out of range. |
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290 * |
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291 * @param index the index of the item to return |
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292 * @return the item at the given index |
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293 * |
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294 * @exception IllegalArgumentException <ul> |
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295 * <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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296 * </ul> |
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297 * @exception DWTException <ul> |
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298 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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299 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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300 * </ul> |
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301 */ |
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302 public ToolItem getItem (int index) { |
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303 checkWidget(); |
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304 if (0 <= index && index < itemCount) return items [index]; |
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305 error (DWT.ERROR_INVALID_RANGE); |
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306 return null; |
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307 } |
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308 |
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309 /** |
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310 * Returns the item at the given point in the receiver |
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311 * or null if no such item exists. The point is in the |
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312 * coordinate system of the receiver. |
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313 * |
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314 * @param point the point used to locate the item |
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315 * @return the item at the given point |
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316 * |
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317 * @exception IllegalArgumentException <ul> |
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318 * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
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319 * </ul> |
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320 * @exception DWTException <ul> |
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321 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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322 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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323 * </ul> |
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324 */ |
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325 public ToolItem getItem (Point pt) { |
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326 checkWidget(); |
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327 if (pt is null) error (DWT.ERROR_NULL_ARGUMENT); |
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328 for (int i=0; i<itemCount; i++) { |
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329 Rectangle rect = items [i].getBounds (); |
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330 if (rect.contains (pt)) return items [i]; |
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331 } |
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332 return null; |
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333 } |
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334 |
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335 /** |
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336 * Returns the number of items contained in the receiver. |
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337 * |
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338 * @return the number of items |
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339 * |
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340 * @exception DWTException <ul> |
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341 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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342 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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343 * </ul> |
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344 */ |
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345 public int getItemCount () { |
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346 checkWidget(); |
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347 return itemCount; |
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348 } |
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349 |
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350 /** |
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351 * Returns an array of <code>ToolItem</code>s which are the items |
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352 * in the receiver. |
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353 * <p> |
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354 * Note: This is not the actual structure used by the receiver |
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355 * to maintain its list of items, so modifying the array will |
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356 * not affect the receiver. |
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357 * </p> |
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358 * |
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359 * @return the items in the receiver |
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360 * |
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361 * @exception DWTException <ul> |
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362 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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363 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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364 * </ul> |
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365 */ |
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366 public ToolItem [] getItems () { |
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367 checkWidget(); |
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368 ToolItem [] result = new ToolItem [itemCount]; |
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369 System.arraycopy (items, 0, result, 0, itemCount); |
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370 return result; |
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371 } |
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372 |
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373 /** |
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374 * Returns the number of rows in the receiver. When |
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375 * the receiver has the <code>WRAP</code> style, the |
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376 * number of rows can be greater than one. Otherwise, |
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377 * the number of rows is always one. |
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378 * |
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379 * @return the number of items |
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380 * |
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381 * @exception DWTException <ul> |
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382 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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383 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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384 * </ul> |
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385 */ |
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386 public int getRowCount () { |
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387 checkWidget(); |
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388 Rectangle rect = getClientArea (); |
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389 return layout (rect.width, rect.height, false) [0]; |
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390 } |
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391 |
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392 /** |
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393 * Searches the receiver's list starting at the first item |
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394 * (index 0) until an item is found that is equal to the |
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395 * argument, and returns the index of that item. If no item |
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396 * is found, returns -1. |
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397 * |
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398 * @param item the search item |
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399 * @return the index of the item |
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400 * |
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401 * @exception IllegalArgumentException <ul> |
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402 * <li>ERROR_NULL_ARGUMENT - if the tool item is null</li> |
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403 * <li>ERROR_INVALID_ARGUMENT - if the tool item has been disposed</li> |
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404 * </ul> |
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405 * @exception DWTException <ul> |
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406 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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407 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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408 * </ul> |
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409 */ |
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410 public int indexOf (ToolItem item) { |
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411 checkWidget(); |
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412 if (item is null) error (DWT.ERROR_NULL_ARGUMENT); |
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413 if (item.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); |
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414 for (int i=0; i<itemCount; i++) { |
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415 if (items [i] is item) return i; |
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416 } |
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417 return -1; |
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418 } |
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419 |
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420 int [] layoutHorizontal (int width, int height, bool resize) { |
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421 int xSpacing = 0, ySpacing = 2; |
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422 int marginWidth = 0, marginHeight = 0; |
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423 int x = marginWidth, y = marginHeight; |
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424 int maxX = 0, rows = 1; |
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425 bool wrap = (style & DWT.WRAP) !is 0; |
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426 int itemHeight = 0; |
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427 Point [] sizes = new Point [itemCount]; |
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428 for (int i=0; i<itemCount; i++) { |
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429 Point size = sizes [i] = items [i].computeSize (); |
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430 itemHeight = Math.max (itemHeight, size.y); |
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431 } |
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432 for (int i=0; i<itemCount; i++) { |
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433 ToolItem item = items [i]; |
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434 Point size = sizes [i]; |
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435 if (wrap && i !is 0 && x + size.x > width) { |
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436 rows++; |
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437 x = marginWidth; |
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438 y += ySpacing + itemHeight; |
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439 } |
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440 if (resize) { |
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441 item.setBounds (x, y, size.x, itemHeight); |
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442 bool visible = x + size.x <= width && y + itemHeight <= height; |
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443 item.setVisible (visible); |
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444 Control control = item.control; |
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445 if (control !is null) { |
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446 int controlY = y + (itemHeight - size.y) / 2; |
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447 control.setBounds (x, controlY, size.x, itemHeight - (controlY - y)); |
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448 } |
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449 } |
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450 x += xSpacing + size.x; |
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451 maxX = Math.max (maxX, x); |
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452 } |
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453 |
84 | 454 return [rows, maxX, y + itemHeight]; |
0
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455 } |
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456 |
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457 int [] layoutVertical (int width, int height, bool resize) { |
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458 int xSpacing = 2, ySpacing = 0; |
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459 int marginWidth = 0, marginHeight = 0; |
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460 int x = marginWidth, y = marginHeight; |
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461 int maxY = 0, cols = 1; |
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462 bool wrap = (style & DWT.WRAP) !is 0; |
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463 int itemWidth = 0; |
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464 Point [] sizes = new Point [itemCount]; |
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465 for (int i=0; i<itemCount; i++) { |
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466 Point size = sizes [i] = items [i].computeSize (); |
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467 itemWidth = Math.max (itemWidth, size.x); |
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468 } |
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469 for (int i=0; i<itemCount; i++) { |
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470 ToolItem item = items [i]; |
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471 Point size = sizes [i]; |
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472 if (wrap && i !is 0 && y + size.y > height) { |
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473 cols++; |
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474 x += xSpacing + itemWidth; |
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475 y = marginHeight; |
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476 } |
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477 if (resize) { |
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478 item.setBounds (x, y, itemWidth, size.y); |
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479 bool visible = x + itemWidth <= width && y + size.y <= height; |
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480 item.setVisible (visible); |
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481 Control control = item.control; |
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482 if (control !is null) { |
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483 int controlX = x + (itemWidth - size.x) / 2; |
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484 control.setBounds (controlX, y, itemWidth - (controlX - x), size.y); |
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485 } |
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486 } |
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487 y += ySpacing + size.y; |
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488 maxY = Math.max (maxY, y); |
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489 } |
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490 |
84 | 491 return [cols, x + itemWidth, maxY]; |
0
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492 } |
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493 |
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494 int [] layout (int nWidth, int nHeight, bool resize) { |
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495 if ((style & DWT.VERTICAL) !is 0) { |
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496 return layoutVertical (nWidth, nHeight, resize); |
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497 } else { |
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498 return layoutHorizontal (nWidth, nHeight, resize); |
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499 } |
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500 } |
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501 |
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502 void relayout () { |
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503 if (drawCount !is 0) return; |
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504 Rectangle rect = getClientArea (); |
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505 layout (rect.width, rect.height, true); |
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506 } |
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507 |
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508 void releaseChildren (bool destroy) { |
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509 if (items !is null) { |
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510 for (int i=0; i<itemCount; i++) { |
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511 ToolItem item = items [i]; |
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512 if (item !is null && !item.isDisposed ()) { |
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513 item.release (false); |
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514 } |
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515 } |
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516 itemCount = 0; |
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517 items = null; |
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518 } |
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519 super.releaseChildren (destroy); |
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520 } |
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521 |
45 | 522 void releaseHandle () { |
523 super.releaseHandle (); | |
524 if (accessibilityAttributes !is null) accessibilityAttributes.release(); | |
525 accessibilityAttributes = null; | |
526 } | |
527 | |
0
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528 void removeControl (Control control) { |
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529 super.removeControl (control); |
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530 for (int i=0; i<itemCount; i++) { |
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531 ToolItem item = items [i]; |
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532 if (item.control is control) item.setControl (null); |
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533 } |
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|
534 } |
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535 |
45 | 536 void resized () { |
537 super.resized (); | |
538 relayout (); | |
539 } | |
540 | |
541 void setFont(NSFont font) { | |
542 for (int i = 0; i < itemCount; i++) { | |
543 ToolItem item = items[i]; | |
84 | 544 if (item.button !is null) (cast(NSButton)item.button).setAttributedTitle(item.createString()); |
45 | 545 } |
0
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546 } |
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|
547 |
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548 public void setRedraw (bool redraw) { |
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549 checkWidget(); |
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550 super.setRedraw (redraw); |
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551 if (redraw && drawCount is 0) relayout(); |
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552 } |
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|
553 |
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554 } |