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annotate dwt/widgets/ProgressBar.d @ 46:cfa563df4fdd

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Updated Widget and Display to 3.514
author Jacob Carlborg <doob@me.com>
date Fri, 05 Dec 2008 16:00:41 +0100
parents d8635bb48c7c
children 16f9078aa1ff
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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 module dwt.widgets.ProgressBar;
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12
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13 import dwt.dwthelper.utils;
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15
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16 import dwt.DWT;
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17 import dwt.DWTException;
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18 import dwt.graphics.Point;
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19 import dwt.internal.cocoa.NSProgressIndicator;
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20 import dwt.internal.cocoa.NSRect;
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21 import dwt.internal.cocoa.SWTProgressIndicator;
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22
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23 /**
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24 * Instances of the receiver represent an unselectable
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25 * user interface object that is used to display progress,
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26 * typically in the form of a bar.
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27 * <dl>
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28 * <dt><b>Styles:</b></dt>
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29 * <dd>SMOOTH, HORIZONTAL, VERTICAL, INDETERMINATE</dd>
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30 * <dt><b>Events:</b></dt>
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31 * <dd>(none)</dd>
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32 * </dl>
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33 * <p>
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34 * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified.
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35 * </p><p>
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36 * IMPORTANT: This class is intended to be subclassed <em>only</em>
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37 * within the DWT implementation.
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38 * </p>
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39 *
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40 * @see <a href="http://www.eclipse.org/swt/snippets/#progressbar">ProgressBar snippets</a>
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41 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: ControlExample</a>
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42 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
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43 */
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44 public class ProgressBar : Control {
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46 /**
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47 * Constructs a new instance of this class given its parent
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48 * and a style value describing its behavior and appearance.
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49 * <p>
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50 * The style value is either one of the style constants defined in
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51 * class <code>DWT</code> which is applicable to instances of this
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52 * class, or must be built by <em>bitwise OR</em>'ing together
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53 * (that is, using the <code>int</code> "|" operator) two or more
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54 * of those <code>DWT</code> style constants. The class description
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55 * lists the style constants that are applicable to the class.
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56 * Style bits are also inherited from superclasses.
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57 * </p>
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58 *
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59 * @param parent a composite control which will be the parent of the new instance (cannot be null)
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60 * @param style the style of control to construct
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61 *
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62 * @exception IllegalArgumentException <ul>
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63 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
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64 * </ul>
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65 * @exception DWTException <ul>
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66 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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67 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
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68 * </ul>
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69 *
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70 * @see DWT#SMOOTH
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71 * @see DWT#HORIZONTAL
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72 * @see DWT#VERTICAL
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73 * @see Widget#checkSubclass
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74 * @see Widget#getStyle
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75 */
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76 public this (Composite parent, int style) {
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77 super (parent, checkStyle (style));
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78 }
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79
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80 static int checkStyle (int style) {
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81 style |= DWT.NO_FOCUS;
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82 return checkBits (style, DWT.HORIZONTAL, DWT.VERTICAL, 0, 0, 0, 0);
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83 }
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84
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85 public Point computeSize (int wHint, int hHint, bool changed) {
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86 checkWidget();
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87 NSProgressIndicator widget = cast(NSProgressIndicator)view;
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88 NSRect oldRect = widget.frame();
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89 widget.sizeToFit();
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90 NSRect newRect = widget.frame();
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91 widget.setFrame (oldRect);
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92 int size = cast(int)newRect.height;
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93 int width = 0, height = 0;
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94 if ((style & DWT.HORIZONTAL) !is 0) {
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95 height = size;
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96 width = height * 10;
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97 } else {
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98 width = size;
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99 height = width * 10;
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100 }
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101 if (wHint !is DWT.DEFAULT) width = wHint;
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102 if (hHint !is DWT.DEFAULT) height = hHint;
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103 return new Point (width, height);
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104 }
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105
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106 void createHandle () {
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107 NSProgressIndicator widget = cast(NSProgressIndicator)new SWTProgressIndicator().alloc();
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108 widget.initWithFrame(NSRect());
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109 widget.setUsesThreadedAnimation(false);
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110 widget.setIndeterminate((style & DWT.INDETERMINATE) !is 0);
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111 if ((style & DWT.INDETERMINATE) !is 0) widget.startAnimation(null);
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112 view = widget;
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113 }
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114
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115 /**
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116 * Returns the maximum value which the receiver will allow.
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117 *
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118 * @return the maximum
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119 *
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120 * @exception DWTException <ul>
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121 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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122 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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123 * </ul>
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124 */
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125 public int getMaximum () {
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126 checkWidget();
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127 return cast(int)(cast(NSProgressIndicator)view).maxValue();
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128 }
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129
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130 /**
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131 * Returns the minimum value which the receiver will allow.
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132 *
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133 * @return the minimum
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134 *
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135 * @exception DWTException <ul>
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136 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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137 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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138 * </ul>
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139 */
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140 public int getMinimum () {
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141 checkWidget();
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142 return cast(int)(cast(NSProgressIndicator)view).minValue();
0
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143 }
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144
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145 /**
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146 * Returns the single 'selection' that is the receiver's position.
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147 *
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148 * @return the selection
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149 *
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150 * @exception DWTException <ul>
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151 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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152 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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153 * </ul>
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154 */
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155 public int getSelection () {
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156 checkWidget();
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157 return cast(int)(cast(NSProgressIndicator)view).doubleValue();
0
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158 }
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159
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160 /**
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161 * Returns the state of the receiver. The value will be one of:
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162 * <ul>
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163 * <li>{@link DWT#NORMAL}</li>
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164 * <li>{@link DWT#ERROR}</li>
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165 * <li>{@link DWT#PAUSED}</li>
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166 * </ul>
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167 *
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168 * @return the state
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169 *
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170 * @exception DWTException <ul>
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171 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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172 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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173 * </ul>
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174 *
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175 * @since 3.4
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176 */
0
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177 public int getState () {
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178 checkWidget ();
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179 return DWT.NORMAL;
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180 }
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181
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182 /**
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183 * Sets the maximum value that the receiver will allow. This new
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184 * value will be ignored if it is not greater than the receiver's current
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185 * minimum value. If the new maximum is applied then the receiver's
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186 * selection value will be adjusted if necessary to fall within its new range.
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187 *
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188 * @param value the new maximum, which must be greater than the current minimum
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189 *
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190 * @exception DWTException <ul>
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191 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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192 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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193 * </ul>
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194 */
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195 public void setMaximum (int value) {
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196 checkWidget();
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197 int minimum = (int)((NSProgressIndicator)view).minValue();
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198 if (value <= minimum) return;
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199 int selection = (int)((NSProgressIndicator)view).doubleValue();
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200 int newSelection = Math.min (selection, value);
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201 if (selection !is newSelection) {
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202 ((NSProgressIndicator)view).setDoubleValue(newSelection);
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203 }
0
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204 }
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205
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206 /**
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207 * Sets the minimum value that the receiver will allow. This new
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208 * value will be ignored if it is negative or is not less than the receiver's
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209 * current maximum value. If the new minimum is applied then the receiver's
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210 * selection value will be adjusted if necessary to fall within its new range.
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211 *
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212 * @param value the new minimum, which must be nonnegative and less than the current maximum
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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 void setMinimum (int value) {
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220 checkWidget();
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221 int maximum = (int)((NSProgressIndicator)view).maxValue();
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222 if (!(0 <= value && value < maximum)) return;
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223 int selection = (int)((NSProgressIndicator)view).doubleValue();
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224 int newSelection = Math.max (selection, value);
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225 if (selection !is newSelection) {
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226 ((NSProgressIndicator)view).setDoubleValue(newSelection);
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227 }
0
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228 }
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229
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230 /**
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231 * Sets the single 'selection' that is the receiver's
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232 * position to the argument which must be greater than or equal
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233 * to zero.
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234 *
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235 * @param value the new selection (must be zero or greater)
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236 *
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237 * @exception DWTException <ul>
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238 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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239 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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240 * </ul>
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241 */
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242 public void setSelection (int value) {
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243 checkWidget();
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244 (cast(NSProgressIndicator)view).setDoubleValue(value);
0
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245 }
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246
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247 /**
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248 * Sets the state of the receiver. The state must be one of these values:
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249 * <ul>
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250 * <li>{@link DWT#NORMAL}</li>
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251 * <li>{@link DWT#ERROR}</li>
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252 * <li>{@link DWT#PAUSED}</li>
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253 * </ul>
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254 *
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255 * @param state the new state
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256 *
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257 * @exception DWTException <ul>
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258 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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259 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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260 * </ul>
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261 *
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262 * @since 3.4
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263 */
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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264 public void setState (int state) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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265 checkWidget ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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266 //NOT IMPLEMENTED
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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267 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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268 }