annotate dwt/widgets/Slider.d @ 76:3f1bfbd329c0

Ported dwt.widgets.Slider
author Jacob Carlborg <doob@me.com>
date Wed, 24 Dec 2008 12:32:20 +0100
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1 /*******************************************************************************
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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
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10 *
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11 * Port to the D programming language:
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12 * Jacob Carlborg <doob@me.com>
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13 *******************************************************************************/
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14 module dwt.widgets.Slider;
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15
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16 import dwt.dwthelper.utils;
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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.SelectionEvent;
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22 import dwt.events.SelectionListener;
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23 import dwt.graphics.Point;
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24 import dwt.internal.cocoa.NSRect;
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25 import dwt.internal.cocoa.NSScroller;
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26 import dwt.internal.cocoa.OS;
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27 import dwt.internal.cocoa.SWTScroller;
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28
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29 import dwt.widgets.Composite;
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30 import dwt.widgets.Control;
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31 import dwt.widgets.Event;
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32 import dwt.widgets.TypedListener;
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33
0
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34 /**
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35 * Instances of this class are selectable user interface
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36 * objects that represent a range of positive, numeric values.
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37 * <p>
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38 * At any given moment, a given slider will have a
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39 * single 'selection' that is considered to be its
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40 * value, which is constrained to be within the range of
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41 * values the slider represents (that is, between its
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42 * <em>minimum</em> and <em>maximum</em> values).
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43 * </p><p>
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44 * Typically, sliders will be made up of five areas:
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45 * <ol>
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46 * <li>an arrow button for decrementing the value</li>
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47 * <li>a page decrement area for decrementing the value by a larger amount</li>
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48 * <li>a <em>thumb</em> for modifying the value by mouse dragging</li>
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49 * <li>a page increment area for incrementing the value by a larger amount</li>
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50 * <li>an arrow button for incrementing the value</li>
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51 * </ol>
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52 * Based on their style, sliders are either <code>HORIZONTAL</code>
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53 * (which have a left facing button for decrementing the value and a
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54 * right facing button for incrementing it) or <code>VERTICAL</code>
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55 * (which have an upward facing button for decrementing the value
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56 * and a downward facing buttons for incrementing it).
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57 * </p><p>
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58 * On some platforms, the size of the slider's thumb can be
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59 * varied relative to the magnitude of the range of values it
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60 * represents (that is, relative to the difference between its
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61 * maximum and minimum values). Typically, this is used to
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62 * indicate some proportional value such as the ratio of the
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63 * visible area of a document to the total amount of space that
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64 * it would take to display it. DWT supports setting the thumb
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65 * size even if the underlying platform does not, but in this
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66 * case the appearance of the slider will not change.
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67 * </p>
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68 * <dl>
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69 * <dt><b>Styles:</b></dt>
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70 * <dd>HORIZONTAL, VERTICAL</dd>
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71 * <dt><b>Events:</b></dt>
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72 * <dd>Selection</dd>
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73 * </dl>
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74 * <p>
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75 * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified.
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76 * </p><p>
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77 * IMPORTANT: This class is <em>not</em> intended to be subclassed.
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78 * </p>
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79 *
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80 * @see ScrollBar
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81 * @see <a href="http://www.eclipse.org/swt/snippets/#slider">Slider snippets</a>
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82 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: ControlExample</a>
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83 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
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84 */
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85 public class Slider : Control {
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86 bool dragging;
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87 int minimum, maximum, thumb;
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88 int increment = 1;
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89 int pageIncrement = 10;
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90
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91 /**
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92 * Constructs a new instance of this class given its parent
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93 * and a style value describing its behavior and appearance.
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94 * <p>
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95 * The style value is either one of the style constants defined in
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96 * class <code>DWT</code> which is applicable to instances of this
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97 * class, or must be built by <em>bitwise OR</em>'ing together
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98 * (that is, using the <code>int</code> "|" operator) two or more
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99 * of those <code>DWT</code> style constants. The class description
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100 * lists the style constants that are applicable to the class.
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101 * Style bits are also inherited from superclasses.
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102 * </p>
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103 *
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104 * @param parent a composite control which will be the parent of the new instance (cannot be null)
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105 * @param style the style of control to construct
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106 *
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107 * @exception IllegalArgumentException <ul>
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108 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
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109 * </ul>
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110 * @exception DWTException <ul>
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111 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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112 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
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113 * </ul>
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114 *
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115 * @see DWT#HORIZONTAL
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116 * @see DWT#VERTICAL
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117 * @see Widget#checkSubclass
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118 * @see Widget#getStyle
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119 */
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120 public this (Composite parent, int style) {
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121 super (parent, checkStyle (style));
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122 }
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123
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124 /**
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125 * Adds the listener to the collection of listeners who will
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126 * be notified when the user changes the receiver's value, by sending
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127 * it one of the messages defined in the <code>SelectionListener</code>
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128 * interface.
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129 * <p>
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130 * When <code>widgetSelected</code> is called, the event object detail field contains one of the following values:
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131 * <code>DWT.NONE</code> - for the end of a drag.
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132 * <code>DWT.DRAG</code>.
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133 * <code>DWT.HOME</code>.
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134 * <code>DWT.END</code>.
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135 * <code>DWT.ARROW_DOWN</code>.
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136 * <code>DWT.ARROW_UP</code>.
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137 * <code>DWT.PAGE_DOWN</code>.
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138 * <code>DWT.PAGE_UP</code>.
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139 * <code>widgetDefaultSelected</code> is not called.
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140 * </p>
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141 *
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142 * @param listener the listener which should be notified when the user changes the receiver's value
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143 *
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144 * @exception IllegalArgumentException <ul>
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145 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
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146 * </ul>
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147 * @exception DWTException <ul>
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148 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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149 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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150 * </ul>
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151 *
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152 * @see SelectionListener
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153 * @see #removeSelectionListener
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154 * @see SelectionEvent
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155 */
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156 public void addSelectionListener(SelectionListener listener) {
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157 checkWidget();
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158 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT);
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159 TypedListener typedListener = new TypedListener(listener);
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160 addListener(DWT.Selection,typedListener);
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161 addListener(DWT.DefaultSelection,typedListener);
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162 }
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163
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164 static int checkStyle (int style) {
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165 return checkBits (style, DWT.HORIZONTAL, DWT.VERTICAL, 0, 0, 0, 0);
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166 }
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167
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168 public Point computeSize (int wHint, int hHint, bool changed) {
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169 checkWidget();
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170 int width = 0, height = 0;
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171 if ((style & DWT.HORIZONTAL) !is 0) {
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172 height = cast(int)NSScroller.scrollerWidth();
0
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173 width = height * 10;
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174 } else {
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175 width = cast(int)NSScroller.scrollerWidth();
0
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176 height = width * 10;
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177 }
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178 if (wHint !is DWT.DEFAULT) width = wHint;
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179 if (hHint !is DWT.DEFAULT) height = hHint;
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180 return new Point (width, height);
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181 }
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182
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183 void createHandle () {
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184 NSScroller widget = cast(NSScroller)(new SWTScroller()).alloc();
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185 NSRect rect = NSRect();
0
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186 if ((style & DWT.HORIZONTAL) !is 0) {
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187 rect.width = 1;
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188 } else {
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189 rect.height = 1;
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190 }
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191 widget.initWithFrame(rect);
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192 widget.setEnabled(true);
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193 widget.setTarget(widget);
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194 widget.setAction(OS.sel_sendSelection);
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195 view = widget;
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196 updateBar(0, minimum, maximum, thumb);
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197 }
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198
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199 void createWidget () {
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200 maximum = 100;
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201 thumb = 10;
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202 super.createWidget();
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203 }
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204
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205 /**
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206 * Returns the amount that the receiver's value will be
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207 * modified by when the up/down (or right/left) arrows
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208 * are pressed.
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209 *
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210 * @return the increment
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211 *
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212 * @exception DWTException <ul>
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213 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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214 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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215 * </ul>
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216 */
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217 public int getIncrement () {
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218 checkWidget();
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219 return increment;
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220 }
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221
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222 /**
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223 * Returns the maximum value which the receiver will allow.
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224 *
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225 * @return the maximum
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226 *
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227 * @exception DWTException <ul>
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228 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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229 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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230 * </ul>
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231 */
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232 public int getMaximum () {
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233 checkWidget();
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234 return maximum;
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235 }
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236
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237 /**
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238 * Returns the minimum value which the receiver will allow.
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239 *
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240 * @return the minimum
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241 *
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242 * @exception DWTException <ul>
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243 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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244 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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245 * </ul>
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246 */
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247 public int getMinimum () {
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248 checkWidget();
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249 return minimum;
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250 }
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251
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252 /**
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253 * Returns the amount that the receiver's value will be
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254 * modified by when the page increment/decrement areas
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255 * are selected.
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256 *
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parents:
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257 * @return the page increment
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parents:
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258 *
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259 * @exception DWTException <ul>
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parents:
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260 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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parents:
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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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parents:
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262 * </ul>
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parents:
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263 */
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parents:
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264 public int getPageIncrement () {
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parents:
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265 checkWidget();
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parents:
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266 return pageIncrement;
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parents:
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267 }
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parents:
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268
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parents:
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269 /**
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parents:
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270 * Returns the 'selection', which is the receiver's value.
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parents:
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271 *
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parents:
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272 * @return the selection
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parents:
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273 *
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parents:
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274 * @exception DWTException <ul>
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parents:
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275 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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parents:
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276 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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277 * </ul>
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parents:
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278 */
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parents:
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279 public int getSelection () {
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parents:
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280 checkWidget();
7
e831403a80a9 Add 'cast' to casts
Frank Benoit <benoit@tionex.de>
parents: 5
diff changeset
281 NSScroller widget = cast(NSScroller)view;
45
d8635bb48c7c Merge with SWT 3.5
Jacob Carlborg <doob@me.com>
parents: 7
diff changeset
282 double value = widget.doubleValue();
7
e831403a80a9 Add 'cast' to casts
Frank Benoit <benoit@tionex.de>
parents: 5
diff changeset
283 return cast(int)((maximum - thumb - minimum) * value + minimum);
0
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284 }
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parents:
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285
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parents:
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286 /**
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parents:
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287 * Returns the size of the receiver's thumb relative to the
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parents:
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288 * difference between its maximum and minimum values.
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parents:
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289 *
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parents:
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290 * @return the thumb value
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
291 *
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parents:
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292 * @exception DWTException <ul>
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parents:
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293 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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parents:
diff changeset
294 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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parents:
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295 * </ul>
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parents:
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296 */
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parents:
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297 public int getThumb () {
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parents:
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298 checkWidget();
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parents:
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299 return thumb;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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300 }
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parents:
diff changeset
301
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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302 /**
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parents:
diff changeset
303 * Removes the listener from the collection of listeners who will
380af2bdd8e5 Upload of whole dwt tree
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parents:
diff changeset
304 * be notified when the user changes the receiver's value.
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
305 *
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
306 * @param listener the listener which should no longer be notified
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
307 *
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
308 * @exception IllegalArgumentException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
309 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
310 * </ul>
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
311 * @exception DWTException <ul>
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
312 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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parents:
diff changeset
313 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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parents:
diff changeset
314 * </ul>
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
315 *
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
316 * @see SelectionListener
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
317 * @see #addSelectionListener
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
318 */
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parents:
diff changeset
319 public void removeSelectionListener(SelectionListener listener) {
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parents:
diff changeset
320 checkWidget();
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
321 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT);
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
322 if (eventTable is null) return;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
323 eventTable.unhook(DWT.Selection, listener);
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
324 eventTable.unhook(DWT.DefaultSelection,listener);
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
325 }
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
326
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
327 void sendSelection () {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
328 Event event = new Event();
76
3f1bfbd329c0 Ported dwt.widgets.Slider
Jacob Carlborg <doob@me.com>
parents: 46
diff changeset
329 NSScrollerPart hitPart = (cast(NSScroller)view).hitPart();
0
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
330 int value = getSelection ();
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
331 switch (hitPart) {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
332 case OS.NSScrollerDecrementLine:
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
333 event.detail = DWT.ARROW_UP;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
334 value -= increment;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
335 break;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
336 case OS.NSScrollerDecrementPage:
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
337 value -= pageIncrement;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
338 event.detail = DWT.PAGE_UP;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
339 break;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
340 case OS.NSScrollerIncrementLine:
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
341 value += increment;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
342 event.detail = DWT.PAGE_DOWN;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
343 break;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
344 case OS.NSScrollerIncrementPage:
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
345 value += pageIncrement;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
346 event.detail = DWT.ARROW_DOWN;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
347 break;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
348 case OS.NSScrollerKnob:
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
349 event.detail = DWT.DRAG;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
350 break;
76
3f1bfbd329c0 Ported dwt.widgets.Slider
Jacob Carlborg <doob@me.com>
parents: 46
diff changeset
351 default:
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
352 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
353 if (event.detail !is DWT.DRAG) {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
354 setSelection(value);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
355 }
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
356 sendEvent(DWT.Selection, event);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
357 }
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
358
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
359 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
360 * Sets the amount that the receiver's value will be
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
361 * modified by when the up/down (or right/left) arrows
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
362 * are pressed to the argument, which must be at least
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
363 * one.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
364 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
365 * @param value the new increment (must be greater than zero)
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
366 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
367 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
368 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
369 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
370 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
371 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
372 public void setIncrement (int value) {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
373 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
374 if (value < 1) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
375 increment = value;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
376 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
377
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
378 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
379 * Sets the maximum. If this value is negative or less than or
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
380 * equal to the minimum, the value is ignored. If necessary, first
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
381 * the thumb and then the selection are adjusted to fit within the
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
382 * new range.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
383 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
384 * @param value the new maximum, which must be greater than the current minimum
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
385 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
386 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
387 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
388 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
389 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
390 */
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
391 public void setMaximum (int value) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
392 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
393 if (value < 0) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
394 if (value <= minimum) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
395 if (value - minimum < thumb) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
396 thumb = value - minimum;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
397 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
398 int selection = Math.max(minimum, Math.min (getSelection (), value - thumb));
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
399 this.maximum = value;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
400 updateBar(selection, minimum, value, thumb);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
401 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
402
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
403 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
404 * Sets the minimum value. If this value is negative or greater
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
405 * than or equal to the maximum, the value is ignored. If necessary,
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
406 * first the thumb and then the selection are adjusted to fit within
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
407 * the new range.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
408 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
409 * @param value the new minimum
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
410 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
411 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
412 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
413 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
414 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
415 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
416 public void setMinimum (int value) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
417 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
418 if (value < 0) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
419 if (value >= maximum) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
420 if (maximum - value < thumb) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
421 thumb = maximum - value;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
422 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
423 int selection = Math.min(maximum - thumb, Math.max (getSelection (), value));
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
424 this.minimum = value;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
425 updateBar(selection, value, maximum, thumb);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
426 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
427
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
428 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
429 * Sets the amount that the receiver's value will be
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
430 * modified by when the page increment/decrement areas
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
431 * are selected to the argument, which must be at least
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
432 * one.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
433 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
434 * @param value the page increment (must be greater than zero)
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
435 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
436 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
437 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
438 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
439 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
440 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
441 public void setPageIncrement (int value) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
442 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
443 if (value < 1) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
444 pageIncrement = value;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
445 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
446
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
447 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
448 * Sets the 'selection', which is the receiver's
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
449 * value, to the argument which must be greater than or equal
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
450 * to zero.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
451 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
452 * @param value the new selection (must be zero or greater)
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
453 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
454 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
455 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
456 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
457 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
458 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
459 public void setSelection (int value) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
460 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
461 updateBar(value, minimum, maximum, thumb);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
462 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
463
45
d8635bb48c7c Merge with SWT 3.5
Jacob Carlborg <doob@me.com>
parents: 7
diff changeset
464 void updateBar (int selection, int minimum, int maximum, int thumb) {
7
e831403a80a9 Add 'cast' to casts
Frank Benoit <benoit@tionex.de>
parents: 5
diff changeset
465 NSScroller widget = cast(NSScroller)view;
45
d8635bb48c7c Merge with SWT 3.5
Jacob Carlborg <doob@me.com>
parents: 7
diff changeset
466 selection = Math.max (minimum, Math.min (maximum - thumb, selection));
d8635bb48c7c Merge with SWT 3.5
Jacob Carlborg <doob@me.com>
parents: 7
diff changeset
467 int range = maximum - thumb - minimum;
d8635bb48c7c Merge with SWT 3.5
Jacob Carlborg <doob@me.com>
parents: 7
diff changeset
468 float fraction = range <= 0 ? 1 : cast(float)(selection - minimum) / range;
d8635bb48c7c Merge with SWT 3.5
Jacob Carlborg <doob@me.com>
parents: 7
diff changeset
469 CGFloat knob = range <= 0 ? 1 : cast(CGFloat)thumb / (maximum - minimum);
d8635bb48c7c Merge with SWT 3.5
Jacob Carlborg <doob@me.com>
parents: 7
diff changeset
470 widget.setFloatValue (fraction, knob);
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
471 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
472
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
473 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
474 * Sets the size of the receiver's thumb relative to the
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
475 * difference between its maximum and minimum values. This new
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
476 * value will be ignored if it is less than one, and will be
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
477 * clamped if it exceeds the receiver's current range.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
478 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
479 * @param value the new thumb value, which must be at least one and not
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
480 * larger than the size of the current range
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
481 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
482 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
483 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
484 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
485 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
486 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
487 public void setThumb (int value) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
488 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
489 if (value < 1) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
490 value = Math.min (value, maximum - minimum);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
491 this.thumb = value;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
492 updateBar(getSelection(), minimum, maximum, value);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
493 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
494
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
495 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
496 * Sets the receiver's selection, minimum value, maximum
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
497 * value, thumb, increment and page increment all at once.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
498 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
499 * Note: This is similar to setting the values individually
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
500 * using the appropriate methods, but may be implemented in a
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
501 * more efficient fashion on some platforms.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
502 * </p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
503 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
504 * @param selection the new selection value
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
505 * @param minimum the new minimum value
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
506 * @param maximum the new maximum value
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
507 * @param thumb the new thumb value
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
508 * @param increment the new increment value
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
509 * @param pageIncrement the new pageIncrement value
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
510 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
511 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
512 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
513 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
514 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
515 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
516 public void setValues (int selection, int minimum, int maximum, int thumb, int increment, int pageIncrement) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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517 checkWidget();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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518 if (minimum < 0) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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519 if (maximum < 0) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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520 if (thumb < 1) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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521 if (increment < 1) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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522 if (pageIncrement < 1) return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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523 thumb = Math.min (thumb, maximum - minimum);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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524 this.increment = increment;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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525 this.pageIncrement = pageIncrement;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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526 updateBar(selection, minimum, maximum, thumb);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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527 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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528
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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529 }