Mercurial > projects > dwt-mac
annotate dwt/widgets/Sash.d @ 7:e831403a80a9
Add 'cast' to casts
author | Frank Benoit <benoit@tionex.de> |
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date | Wed, 27 Aug 2008 14:30:35 +0200 |
parents | 1a8b3cb347e0 |
children | d8635bb48c7c |
rev | line source |
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1 /******************************************************************************* |
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2 * Copyright (c) 2000, 2007 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.Sash; |
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12 |
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13 import dwt.dwthelper.utils; |
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14 |
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15 import dwt.DWT; |
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16 import dwt.DWTException; |
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17 import dwt.events.SelectionEvent; |
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18 import dwt.events.SelectionListener; |
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19 import dwt.graphics.Cursor; |
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20 import dwt.graphics.Point; |
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21 import dwt.graphics.Rectangle; |
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22 import dwt.internal.cocoa.NSEvent; |
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23 import dwt.internal.cocoa.NSPoint; |
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24 import dwt.internal.cocoa.NSRect; |
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25 import dwt.internal.cocoa.OS; |
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26 import dwt.internal.cocoa.SWTView; |
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27 |
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28 /** |
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29 * Instances of the receiver represent a selectable user interface object |
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30 * that allows the user to drag a rubber banded outline of the sash within |
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31 * the parent control. |
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32 * <dl> |
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33 * <dt><b>Styles:</b></dt> |
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34 * <dd>HORIZONTAL, VERTICAL, SMOOTH</dd> |
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35 * <dt><b>Events:</b></dt> |
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36 * <dd>Selection</dd> |
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37 * </dl> |
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38 * <p> |
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39 * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. |
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40 * </p><p> |
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41 * IMPORTANT: This class is intended to be subclassed <em>only</em> |
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42 * within the DWT implementation. |
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43 * </p> |
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44 */ |
3 | 45 public class Sash : Control { |
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46 Cursor sizeCursor; |
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47 bool dragging; |
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48 int lastX, lastY, startX, startY; |
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49 private final static int INCREMENT = 1; |
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50 private final static int PAGE_INCREMENT = 9; |
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51 |
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52 /** |
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53 * Constructs a new instance of this class given its parent |
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54 * and a style value describing its behavior and appearance. |
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55 * <p> |
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56 * The style value is either one of the style constants defined in |
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57 * class <code>DWT</code> which is applicable to instances of this |
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58 * class, or must be built by <em>bitwise OR</em>'ing together |
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59 * (that is, using the <code>int</code> "|" operator) two or more |
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60 * of those <code>DWT</code> style constants. The class description |
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61 * lists the style constants that are applicable to the class. |
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62 * Style bits are also inherited from superclasses. |
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63 * </p> |
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64 * |
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65 * @param parent a composite control which will be the parent of the new instance (cannot be null) |
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66 * @param style the style of control to construct |
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67 * |
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68 * @exception IllegalArgumentException <ul> |
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69 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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70 * </ul> |
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71 * @exception DWTException <ul> |
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72 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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73 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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74 * </ul> |
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75 * |
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76 * @see DWT#HORIZONTAL |
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77 * @see DWT#VERTICAL |
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78 * @see Widget#checkSubclass |
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79 * @see Widget#getStyle |
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80 */ |
5 | 81 public this (Composite parent, int style) { |
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82 super (parent, checkStyle (style)); |
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83 int cursorStyle = (style & DWT.VERTICAL) !is 0 ? DWT.CURSOR_SIZEWE : DWT.CURSOR_SIZENS; |
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84 sizeCursor = new Cursor (display, cursorStyle); |
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85 } |
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86 |
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87 /** |
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88 * Adds the listener to the collection of listeners who will |
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89 * be notified when the control is selected by the user, by sending |
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90 * it one of the messages defined in the <code>SelectionListener</code> |
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91 * interface. |
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92 * <p> |
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93 * When <code>widgetSelected</code> is called, the x, y, width, and height fields of the event object are valid. |
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94 * If the receiver is being dragged, the event object detail field contains the value <code>DWT.DRAG</code>. |
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95 * <code>widgetDefaultSelected</code> is not called. |
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96 * </p> |
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97 * |
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98 * @param listener the listener which should be notified when the control is selected by the user |
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99 * |
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100 * @exception IllegalArgumentException <ul> |
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101 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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102 * </ul> |
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103 * @exception DWTException <ul> |
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104 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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105 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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106 * </ul> |
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107 * |
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108 * @see SelectionListener |
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109 * @see #removeSelectionListener |
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110 * @see SelectionEvent |
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111 */ |
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112 public void addSelectionListener(SelectionListener listener) { |
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113 checkWidget(); |
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114 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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115 TypedListener typedListener = new TypedListener(listener); |
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116 addListener(DWT.Selection,typedListener); |
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117 addListener(DWT.DefaultSelection,typedListener); |
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118 } |
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119 |
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120 static int checkStyle (int style) { |
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121 /* |
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122 * Macintosh only supports smooth dragging. |
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123 */ |
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124 style |= DWT.SMOOTH; |
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125 return checkBits (style, DWT.HORIZONTAL, DWT.VERTICAL, 0, 0, 0, 0); |
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126 } |
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127 |
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128 bool becomeFirstResponder () { |
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129 bool result = super.becomeFirstResponder(); |
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130 NSRect frame = view.frame(); |
7 | 131 lastX = cast(int)frame.x; |
132 lastY = cast(int)frame.y; | |
0
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133 return result; |
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134 } |
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135 |
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136 public Point computeSize (int wHint, int hHint, bool changed) { |
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137 checkWidget(); |
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138 int width = 0, height = 0; |
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139 if ((style & DWT.HORIZONTAL) !is 0) { |
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140 width += DEFAULT_WIDTH; height += 5; |
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141 } else { |
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142 width += 5; height += DEFAULT_HEIGHT; |
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143 } |
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144 if (wHint !is DWT.DEFAULT) width = wHint; |
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145 if (hHint !is DWT.DEFAULT) height = hHint; |
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146 return new Point (width, height); |
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147 } |
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148 |
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149 void createHandle () { |
7 | 150 SWTView widget = cast(SWTView)new SWTView().alloc(); |
0
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151 widget.initWithFrame (new NSRect()); |
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152 widget.setTag(jniRef); |
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153 view = widget; |
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154 parent.contentView().addSubview_(view); |
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155 } |
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156 |
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157 bool sendKeyEvent(NSEvent nsEvent, int type) { |
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158 //TODO consumed |
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159 int keyCode = nsEvent.keyCode(); |
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160 switch (keyCode) { |
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161 case 126: /* Up arrow */ |
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162 case 123: /* Left arrow */ |
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163 case 125: /* Down arrow */ |
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164 case 124: /* Right arrow */ { |
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165 int xChange = 0, yChange = 0; |
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166 int stepSize = PAGE_INCREMENT; |
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167 int modifiers = nsEvent.modifierFlags(); |
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168 if ((modifiers & OS.NSControlKeyMask) !is 0) stepSize = INCREMENT; |
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169 if ((style & DWT.VERTICAL) !is 0) { |
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170 if (keyCode is 126 || keyCode is 125) break; |
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171 xChange = keyCode is 123 ? -stepSize : stepSize; |
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172 } else { |
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173 if (keyCode is 123 || keyCode is 124) break; |
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174 yChange = keyCode is 126 ? -stepSize : stepSize; |
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175 } |
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176 |
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177 Rectangle bounds = getBounds (); |
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178 int width = bounds.width, height = bounds.height; |
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179 Rectangle parentBounds = parent.getBounds (); |
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180 int parentWidth = parentBounds.width; |
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181 int parentHeight = parentBounds.height; |
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182 int newX = lastX, newY = lastY; |
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183 if ((style & DWT.VERTICAL) !is 0) { |
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184 newX = Math.min (Math.max (0, lastX + xChange), parentWidth - width); |
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185 } else { |
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186 newY = Math.min (Math.max (0, lastY + yChange), parentHeight - height); |
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187 } |
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188 if (newX is lastX && newY is lastY) return true; |
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189 Event event = new Event (); |
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190 event.x = newX; |
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191 event.y = newY; |
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192 event.width = width; |
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193 event.height = height; |
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194 sendEvent (DWT.Selection, event); |
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195 if (isDisposed ()) break; |
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196 if (event.doit) { |
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197 setBounds (event.x, event.y, width, height); |
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198 if (isDisposed ()) break; |
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199 lastX = event.x; |
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200 lastY = event.y; |
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201 if (isDisposed ()) return false; |
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202 int cursorX = event.x, cursorY = event.y; |
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203 if ((style & DWT.VERTICAL) !is 0) { |
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204 cursorY += height / 2; |
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205 } else { |
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206 cursorX += width / 2; |
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207 } |
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208 display.setCursorLocation (parent.toDisplay (cursorX, cursorY)); |
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209 } |
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210 break; |
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211 } |
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212 } |
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213 return true; |
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214 } |
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215 |
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216 void mouseDown(int theEvent) { |
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217 super.mouseDown(theEvent); |
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218 NSEvent nsEvent = new NSEvent(theEvent); |
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219 if (nsEvent.clickCount() !is 1) return; |
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220 NSPoint location = nsEvent.locationInWindow(); |
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221 NSPoint point = view.convertPoint_fromView_(location, null); |
7 | 222 startX = cast(int)point.x; |
223 startY = cast(int)point.y; | |
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224 NSRect frame = view.frame(); |
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225 Event event = new Event (); |
7 | 226 event.x = cast(int)frame.x; |
227 event.y = cast(int)frame.y; | |
228 event.width = cast(int)frame.width; | |
229 event.height = cast(int)frame.height; | |
0
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230 sendEvent (DWT.Selection, event); |
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231 if (isDisposed ()) return; |
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232 if (event.doit) { |
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233 lastX = event.x; |
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234 lastY = event.y; |
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235 dragging = true; |
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236 setLocation(event.x, event.y); |
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237 } |
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238 } |
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239 |
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240 void mouseDragged(int theEvent) { |
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241 super.mouseDragged(theEvent); |
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242 if (!dragging) return; |
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243 NSEvent nsEvent = new NSEvent(theEvent); |
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244 NSPoint location = nsEvent.locationInWindow(); |
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245 NSPoint point = view.convertPoint_fromView_(location, null); |
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246 NSRect frame = view.frame(); |
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247 NSRect parentFrame = parent.topView().frame(); |
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248 int newX = lastX, newY = lastY; |
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249 if ((style & DWT.VERTICAL) !is 0) { |
7 | 250 newX = Math.min (Math.max (0, cast(int)(point.x + frame.x - startX)), cast(int)(parentFrame.width - frame.width)); |
0
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251 } else { |
7 | 252 newY = Math.min (Math.max (0, cast(int)(point.y + frame.y - startY)), cast(int)(parentFrame.height - frame.height)); |
0
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253 } |
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254 if (newX is lastX && newY is lastY) return; |
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255 Event event = new Event (); |
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256 event.x = newX; |
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257 event.y = newY; |
7 | 258 event.width = cast(int)frame.width; |
259 event.height = cast(int)frame.height; | |
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260 sendEvent (DWT.Selection, event); |
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261 if (isDisposed ()) return; |
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262 if (event.doit) { |
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263 lastX = event.x; |
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264 lastY = event.y; |
7 | 265 setBounds (event.x, event.y, cast(int)frame.width, cast(int)frame.height); |
0
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266 } |
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267 } |
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268 |
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269 void mouseEntered(int theEvent) { |
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270 //TODO need to add tracking area |
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271 super.mouseEntered(theEvent); |
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272 sizeCursor.handle.set(); |
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273 } |
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274 |
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275 void mouseUp(int theEvent) { |
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276 super.mouseUp(theEvent); |
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277 if (!dragging) return; |
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278 dragging = false; |
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279 NSRect frame = view.frame(); |
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280 Event event = new Event (); |
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281 event.x = lastX; |
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282 event.y = lastY; |
7 | 283 event.width = cast(int)frame.width; |
284 event.height = cast(int)frame.height; | |
0
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285 sendEvent (DWT.Selection, event); |
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286 if (isDisposed ()) return; |
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287 if (event.doit) { |
7 | 288 setBounds (event.x, event.y, cast(int)frame.width, cast(int)frame.height); |
0
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289 } |
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290 } |
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291 |
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292 void releaseWidget () { |
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293 super.releaseWidget (); |
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294 if (sizeCursor !is null) sizeCursor.dispose (); |
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295 sizeCursor = null; |
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296 } |
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297 |
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298 /** |
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299 * Removes the listener from the collection of listeners who will |
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300 * be notified when the control is selected by the user. |
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301 * |
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302 * @param listener the listener which should no longer be notified |
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303 * |
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304 * @exception IllegalArgumentException <ul> |
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305 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
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306 * </ul> |
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307 * @exception DWTException <ul> |
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308 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
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309 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
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310 * </ul> |
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311 * |
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312 * @see SelectionListener |
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313 * @see #addSelectionListener |
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314 */ |
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315 public void removeSelectionListener(SelectionListener listener) { |
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316 checkWidget(); |
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317 if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); |
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318 if (eventTable is null) return; |
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319 eventTable.unhook(DWT.Selection, listener); |
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320 eventTable.unhook(DWT.DefaultSelection,listener); |
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321 } |
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322 |
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323 int traversalCode (int key, NSEvent theEvent) { |
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324 return 0; |
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325 } |
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326 |
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327 } |