Mercurial > projects > dwt-mac
annotate dwt/widgets/Scale.d @ 123:63a09873578e
Fixed compile errors
author | Jacob Carlborg <doob@me.com> |
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date | Thu, 15 Jan 2009 23:08:54 +0100 |
parents | 1926e6c4bf87 |
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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 |
75 | 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.Scale; |
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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; |
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21 import dwt.events.SelectionListener; |
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22 import dwt.graphics.Point; |
45 | 23 import dwt.internal.cocoa.NSControl; |
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24 import dwt.internal.cocoa.NSRect; |
45 | 25 import dwt.internal.cocoa.NSSize; |
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26 import dwt.internal.cocoa.NSSlider; |
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27 import dwt.internal.cocoa.SWTSlider; |
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28 |
75 | 29 import dwt.widgets.Composite; |
30 import dwt.widgets.Control; | |
31 import dwt.widgets.TypedListener; | |
32 | |
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33 /** |
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34 * Instances of the receiver represent a selectable user |
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35 * interface object that present a range of continuous |
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36 * numeric values. |
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37 * <dl> |
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38 * <dt><b>Styles:</b></dt> |
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39 * <dd>HORIZONTAL, VERTICAL</dd> |
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40 * <dt><b>Events:</b></dt> |
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41 * <dd>Selection</dd> |
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42 * </dl> |
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43 * <p> |
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44 * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. |
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45 * </p><p> |
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46 * <p> |
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47 * IMPORTANT: This class is intended to be subclassed <em>only</em> |
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48 * within the DWT implementation. |
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49 * </p> |
45 | 50 * |
51 * @see <a href="http://www.eclipse.org/swt/snippets/#scale">Scale snippets</a> | |
52 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: ControlExample</a> | |
53 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
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54 */ |
3 | 55 public class Scale : Control { |
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56 int increment = 1; |
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57 int pageIncrement = 10; |
123 | 58 |
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59 /** |
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60 * Constructs a new instance of this class given its parent |
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61 * and a style value describing its behavior and appearance. |
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62 * <p> |
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63 * The style value is either one of the style constants defined in |
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64 * class <code>DWT</code> which is applicable to instances of this |
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65 * class, or must be built by <em>bitwise OR</em>'ing together |
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66 * (that is, using the <code>int</code> "|" operator) two or more |
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67 * of those <code>DWT</code> style constants. The class description |
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68 * lists the style constants that are applicable to the class. |
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69 * Style bits are also inherited from superclasses. |
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70 * </p> |
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71 * |
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72 * @param parent a composite control which will be the parent of the new instance (cannot be null) |
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73 * @param style the style of control to construct |
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74 * |
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75 * @exception IllegalArgumentException <ul> |
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76 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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77 * </ul> |
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78 * @exception DWTException <ul> |
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79 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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80 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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81 * </ul> |
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82 * |
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83 * @see DWT#HORIZONTAL |
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84 * @see DWT#VERTICAL |
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85 * @see Widget#checkSubclass |
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86 * @see Widget#getStyle |
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87 */ |
5 | 88 public this (Composite parent, int style) { |
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89 super (parent, checkStyle (style)); |
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90 } |
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91 |
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92 /** |
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93 * Adds the listener to the collection of listeners who will |
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94 * be notified when the user changes the receiver's value, by sending |
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95 * it one of the messages defined in the <code>SelectionListener</code> |
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96 * interface. |
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97 * <p> |
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98 * <code>widgetSelected</code> is called when the user changes the receiver's value. |
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99 * <code>widgetDefaultSelected</code> is not called. |
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100 * </p> |
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101 * |
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102 * @param listener the listener which should be notified |
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103 * |
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104 * @exception IllegalArgumentException <ul> |
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105 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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106 * </ul> |
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107 * @exception DWTException <ul> |
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108 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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109 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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110 * </ul> |
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111 * |
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112 * @see SelectionListener |
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113 * @see #removeSelectionListener |
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114 */ |
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115 public void addSelectionListener(SelectionListener listener) { |
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116 checkWidget(); |
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117 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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118 TypedListener typedListener = new TypedListener(listener); |
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119 addListener(DWT.Selection,typedListener); |
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120 addListener(DWT.DefaultSelection,typedListener); |
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121 } |
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122 |
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123 static int checkStyle (int style) { |
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124 return checkBits (style, DWT.HORIZONTAL, DWT.VERTICAL, 0, 0, 0, 0); |
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125 } |
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126 |
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127 public Point computeSize (int wHint, int hHint, bool changed) { |
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128 checkWidget(); |
7 | 129 NSSlider widget = cast(NSSlider)view; |
45 | 130 NSSize size = widget.cell().cellSizeForBounds(widget.bounds()); |
131 int width = DEFAULT_WIDTH, height = DEFAULT_HEIGHT; | |
132 if ((style & DWT.HORIZONTAL) !is 0) { | |
133 height = cast(int)Math.ceil(size.height); | |
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134 width = height * 10; |
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135 } else { |
45 | 136 width = cast(int)Math.ceil(size.width); |
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137 height = width * 10; |
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138 } |
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139 if (wHint !is DWT.DEFAULT) width = wHint; |
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140 if (hHint !is DWT.DEFAULT) height = hHint; |
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141 return new Point (width, height); |
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142 } |
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143 |
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144 void createHandle () { |
75 | 145 NSSlider widget = cast(NSSlider)(new SWTSlider()).alloc(); |
46
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146 NSRect rect = NSRect(); |
123 | 147 rect.width = 1; |
148 rect.height = 1; | |
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149 widget.initWithFrame(rect); |
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150 widget.setMaxValue(100); |
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151 view = widget; |
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152 } |
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153 |
45 | 154 void deregister() { |
155 super.deregister(); | |
75 | 156 display.removeWidget((cast(NSControl)view).cell()); |
45 | 157 } |
158 | |
159 | |
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160 /** |
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161 * Returns the amount that the receiver's value will be |
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162 * modified by when the up/down (or right/left) arrows |
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163 * are pressed. |
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164 * |
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165 * @return the increment |
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166 * |
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167 * @exception DWTException <ul> |
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168 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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169 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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170 * </ul> |
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171 */ |
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172 public int getIncrement () { |
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173 checkWidget(); |
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174 return increment; |
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175 } |
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176 |
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177 /** |
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178 * Returns the maximum value which the receiver will allow. |
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179 * |
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180 * @return the maximum |
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181 * |
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182 * @exception DWTException <ul> |
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183 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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184 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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185 * </ul> |
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186 */ |
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187 public int getMaximum () { |
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188 checkWidget(); |
7 | 189 return cast(int)(cast(NSSlider)view).maxValue(); |
0
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190 } |
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191 |
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192 /** |
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193 * Returns the minimum value which the receiver will allow. |
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194 * |
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195 * @return the minimum |
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196 * |
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197 * @exception DWTException <ul> |
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198 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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199 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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200 * </ul> |
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201 */ |
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202 public int getMinimum () { |
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203 checkWidget(); |
7 | 204 return cast(int)(cast(NSSlider)view).minValue(); |
0
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205 } |
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206 |
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207 /** |
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208 * Returns the amount that the receiver's value will be |
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209 * modified by when the page increment/decrement areas |
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210 * are selected. |
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211 * |
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212 * @return the page increment |
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213 * |
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214 * @exception DWTException <ul> |
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215 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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216 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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217 * </ul> |
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218 */ |
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219 public int getPageIncrement () { |
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220 checkWidget(); |
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221 return pageIncrement; |
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222 } |
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223 |
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224 /** |
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225 * Returns the 'selection', which is the receiver's position. |
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226 * |
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227 * @return the selection |
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228 * |
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229 * @exception DWTException <ul> |
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230 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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231 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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232 * </ul> |
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233 */ |
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234 public int getSelection () { |
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235 checkWidget(); |
123 | 236 // int value = OS.GetControl32BitValue (handle); |
237 // if ((style & DWT.VERTICAL) !is 0) { | |
238 // int minimum = OS.GetControl32BitMinimum (handle); | |
239 // int maximum = OS.GetControl32BitMaximum (handle); | |
240 // value = maximum - value + minimum; | |
241 // } | |
7 | 242 return cast(int)(cast(NSSlider)view).doubleValue(); |
0
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243 } |
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244 |
45 | 245 void register() { |
246 super.register(); | |
75 | 247 display.addWidget((cast(NSControl)view).cell(), this); |
45 | 248 } |
249 | |
0
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250 /** |
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251 * Removes the listener from the collection of listeners who will |
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252 * be notified when the user changes the receiver's value. |
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253 * |
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254 * @param listener the listener which should no longer be notified |
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255 * |
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256 * @exception IllegalArgumentException <ul> |
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257 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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258 * </ul> |
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259 * @exception DWTException <ul> |
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260 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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261 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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262 * </ul> |
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263 * |
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264 * @see SelectionListener |
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265 * @see #addSelectionListener |
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266 */ |
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267 public void removeSelectionListener(SelectionListener listener) { |
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268 checkWidget(); |
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269 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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270 if (eventTable is null) return; |
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271 eventTable.unhook(DWT.Selection, listener); |
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272 eventTable.unhook(DWT.DefaultSelection,listener); |
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273 } |
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274 |
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275 /** |
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276 * Sets the amount that the receiver's value will be |
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277 * modified by when the up/down (or right/left) arrows |
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278 * are pressed to the argument, which must be at least |
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279 * one. |
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280 * |
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281 * @param increment the new increment (must be greater than zero) |
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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 void setIncrement (int value) { |
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289 checkWidget(); |
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290 if (value < 1) return; |
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291 increment = value; |
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292 } |
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293 |
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294 /** |
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295 * Sets the maximum value that the receiver will allow. This new |
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296 * value will be ignored if it is not greater than the receiver's current |
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297 * minimum value. If the new maximum is applied then the receiver's |
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298 * selection value will be adjusted if necessary to fall within its new range. |
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299 * |
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300 * @param value the new maximum, which must be greater than the current minimum |
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301 * |
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302 * @exception DWTException <ul> |
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303 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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304 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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305 * </ul> |
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306 */ |
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307 public void setMaximum (int value) { |
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308 checkWidget(); |
75 | 309 int minimum = cast(int)(cast(NSSlider)view).minValue(); |
45 | 310 if (value <= minimum) return; |
0
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311 } |
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312 |
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313 /** |
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314 * Sets the minimum value that the receiver will allow. This new |
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315 * value will be ignored if it is negative or is not less than the receiver's |
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316 * current maximum value. If the new minimum is applied then the receiver's |
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317 * selection value will be adjusted if necessary to fall within its new range. |
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318 * |
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319 * @param value the new minimum, which must be nonnegative and less than the current maximum |
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320 * |
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321 * @exception DWTException <ul> |
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322 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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323 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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324 * </ul> |
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325 */ |
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326 public void setMinimum (int value) { |
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327 checkWidget(); |
75 | 328 int maximum = cast(int)(cast(NSSlider)view).maxValue(); |
45 | 329 if (!(0 <= value && value < maximum)) return; |
0
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330 } |
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331 |
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332 /** |
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333 * Sets the amount that the receiver's value will be |
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334 * modified by when the page increment/decrement areas |
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335 * are selected to the argument, which must be at least |
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336 * one. |
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337 * |
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338 * @param pageIncrement the page increment (must be greater than zero) |
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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 void setPageIncrement (int value) { |
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346 checkWidget(); |
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347 if (value < 1) return; |
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348 pageIncrement = value; |
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349 } |
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350 |
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351 /** |
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352 * Sets the 'selection', which is the receiver's value, |
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353 * to the argument which must be greater than or equal to zero. |
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354 * |
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355 * @param value the new selection (must be zero or greater) |
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356 * |
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357 * @exception DWTException <ul> |
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358 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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359 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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360 * </ul> |
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361 */ |
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362 public void setSelection (int value) { |
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363 checkWidget(); |
7 | 364 (cast(NSSlider)view).setDoubleValue(value); |
0
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365 } |
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366 |
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367 } |