Mercurial > projects > dwt-mac
annotate dwt/graphics/Path.d @ 45:d8635bb48c7c
Merge with SWT 3.5
| author | Jacob Carlborg <doob@me.com> |
|---|---|
| date | Mon, 01 Dec 2008 17:07:00 +0100 |
| parents | db5a898b2119 |
| children | cfa563df4fdd |
| rev | line source |
|---|---|
| 45 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2008 IBM Corporation and others. | |
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3 * All rights reserved. This program and the accompanying materials |
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4 * are made available under the terms of the Eclipse Public License v1.0 |
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5 * which accompanies this distribution, and is available at |
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6 * http://www.eclipse.org/legal/epl-v10.html |
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7 * |
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8 * Contributors: |
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9 * IBM Corporation - initial API and implementation |
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10 * |
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11 * Port to the D programming language: |
| 45 | 12 * Jacob Carlborg <doob@me.com> |
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13 *******************************************************************************/ |
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14 module dwt.graphics.Path; |
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15 |
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16 |
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17 import dwt.DWT; |
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18 import dwt.DWTError; |
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19 import dwt.DWTException; |
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20 import dwt.internal.cocoa.NSAffineTransform; |
| 45 | 21 import dwt.internal.cocoa.NSAutoreleasePool; |
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22 import dwt.internal.cocoa.NSBezierPath; |
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23 import dwt.internal.cocoa.NSLayoutManager; |
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24 import dwt.internal.cocoa.NSPoint; |
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25 import dwt.internal.cocoa.NSRange; |
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26 import dwt.internal.cocoa.NSRect; |
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27 import dwt.internal.cocoa.NSSize; |
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28 import dwt.internal.cocoa.NSString; |
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29 import dwt.internal.cocoa.NSTextContainer; |
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30 import dwt.internal.cocoa.NSTextStorage; |
| 45 | 31 import dwt.internal.cocoa.NSThread; |
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32 import dwt.internal.cocoa.OS; |
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33 |
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34 import tango.text.convert.Format; |
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35 |
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36 import dwt.dwthelper.utils; |
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37 import dwt.graphics.Device; |
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38 import dwt.graphics.Font; |
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39 import dwt.graphics.GC; |
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40 import dwt.graphics.GCData; |
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41 import dwt.graphics.PathData; |
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42 import dwt.graphics.Resource; |
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43 import dwt.internal.cocoa.CGFloat; |
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44 import dwt.internal.cocoa.NSFont : NSGlyph; |
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45 import dwt.internal.cocoa.NSInteger; |
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46 |
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47 /** |
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48 * Instances of this class represent paths through the two-dimensional |
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49 * coordinate system. Paths do not have to be continuous, and can be |
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50 * described using lines, rectangles, arcs, cubic or quadratic bezier curves, |
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51 * glyphs, or other paths. |
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52 * <p> |
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53 * Application code must explicitly invoke the <code>Path.dispose()</code> |
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54 * method to release the operating system resources managed by each instance |
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55 * when those instances are no longer required. |
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56 * </p> |
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57 * <p> |
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58 * This class requires the operating system's advanced graphics subsystem |
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59 * which may not be available on some platforms. |
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60 * </p> |
| 45 | 61 * |
| 62 * @see <a href="http://www.eclipse.org/swt/snippets/#path">Path, Pattern snippets</a> | |
| 63 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: GraphicsExample</a> | |
| 64 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
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65 * |
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66 * @since 3.1 |
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67 */ |
| 3 | 68 public class Path : Resource { |
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69 |
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70 alias Resource.init_ init_; |
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71 |
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72 /** |
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73 * the OS resource for the Path |
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74 * (Warning: This field is platform dependent) |
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75 * <p> |
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76 * <b>IMPORTANT:</b> This field is <em>not</em> part of the DWT |
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77 * public API. It is marked public only so that it can be shared |
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78 * within the packages provided by DWT. It is not available on all |
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79 * platforms and should never be accessed from application code. |
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80 * </p> |
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81 */ |
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82 public NSBezierPath handle; |
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83 |
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84 /** |
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85 * Constructs a new empty Path. |
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86 * <p> |
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87 * This operation requires the operating system's advanced |
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88 * graphics subsystem which may not be available on some |
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89 * platforms. |
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90 * </p> |
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91 * |
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92 * @param device the device on which to allocate the path |
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93 * |
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94 * @exception IllegalArgumentException <ul> |
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95 * <li>ERROR_NULL_ARGUMENT - if the device is null and there is no current device</li> |
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96 * </ul> |
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97 * @exception DWTException <ul> |
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98 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> |
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99 * </ul> |
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100 * @exception DWTError <ul> |
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101 * <li>ERROR_NO_HANDLES if a handle for the path could not be obtained</li> |
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102 * </ul> |
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103 * |
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104 * @see #dispose() |
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105 */ |
| 5 | 106 public this (Device device) { |
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107 super(device); |
| 45 | 108 NSAutoreleasePool pool = null; |
| 109 if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); | |
| 110 try { | |
| 111 handle = NSBezierPath.bezierPath(); | |
| 112 if (handle is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 113 handle.retain(); | |
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114 handle.moveToPoint(NSPoint()); |
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115 init_(); |
| 45 | 116 } finally { |
| 117 if (pool !is null) pool.release(); | |
| 118 } | |
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119 } |
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120 |
| 45 | 121 /** |
| 122 * Constructs a new Path that is a copy of <code>path</code>. If | |
| 123 * <code>flatness</code> is less than or equal to zero, an unflatten | |
| 124 * copy of the path is created. Otherwise, it specifies the maximum | |
| 125 * error between the path and its flatten copy. Smaller numbers give | |
| 126 * better approximation. | |
| 127 * <p> | |
| 128 * This operation requires the operating system's advanced | |
| 129 * graphics subsystem which may not be available on some | |
| 130 * platforms. | |
| 131 * </p> | |
| 132 * | |
| 133 * @param device the device on which to allocate the path | |
| 134 * @param path the path to make a copy | |
| 135 * @param flatness the flatness value | |
| 136 * | |
| 137 * @exception IllegalArgumentException <ul> | |
| 138 * <li>ERROR_NULL_ARGUMENT - if the device is null and there is no current device</li> | |
| 139 * <li>ERROR_NULL_ARGUMENT - if the path is null</li> | |
| 140 * <li>ERROR_INVALID_ARGUMENT - if the path has been disposed</li> | |
| 141 * </ul> | |
| 142 * @exception DWTException <ul> | |
| 143 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> | |
| 144 * </ul> | |
| 145 * @exception DWTError <ul> | |
| 146 * <li>ERROR_NO_HANDLES if a handle for the path could not be obtained</li> | |
| 147 * </ul> | |
| 148 * | |
| 149 * @see #dispose() | |
| 150 * @since 3.4 | |
| 151 */ | |
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152 super(device); |
| 45 | 153 NSAutoreleasePool pool = null; |
| 154 if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); | |
| 155 try { | |
| 156 if (path is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 157 if (path.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 158 flatness = Math.max(0, flatness); | |
| 159 if (flatness is 0) { | |
|
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160 handle = new NSBezierPath(path.handle.copy().id_); |
| 45 | 161 } else { |
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162 CGFloat defaultFlatness = NSBezierPath.defaultFlatness(); |
| 45 | 163 NSBezierPath.setDefaultFlatness(flatness); |
| 164 handle = path.handle.bezierPathByFlatteningPath(); | |
| 165 NSBezierPath.setDefaultFlatness(defaultFlatness); | |
| 166 } | |
| 167 if (handle is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 168 init_(); | |
| 169 } finally { | |
| 170 if (pool !is null) pool.release(); | |
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171 } |
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172 } |
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173 |
| 45 | 174 /** |
| 175 * Constructs a new Path with the specifed PathData. | |
| 176 * <p> | |
| 177 * This operation requires the operating system's advanced | |
| 178 * graphics subsystem which may not be available on some | |
| 179 * platforms. | |
| 180 * </p> | |
| 181 * | |
| 182 * @param device the device on which to allocate the path | |
| 183 * @param data the data for the path | |
| 184 * | |
| 185 * @exception IllegalArgumentException <ul> | |
| 186 * <li>ERROR_NULL_ARGUMENT - if the device is null and there is no current device</li> | |
| 187 * <li>ERROR_NULL_ARGUMENT - if the data is null</li> | |
| 188 * </ul> | |
| 189 * @exception DWTException <ul> | |
| 190 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> | |
| 191 * </ul> | |
| 192 * @exception DWTError <ul> | |
| 193 * <li>ERROR_NO_HANDLES if a handle for the path could not be obtained</li> | |
| 194 * </ul> | |
| 195 * | |
| 196 * @see #dispose() | |
| 197 * @since 3.4 | |
| 198 */ | |
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199 this(device); |
| 45 | 200 NSAutoreleasePool pool = null; |
| 201 if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); | |
| 202 try { | |
| 203 if (data is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
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204 init_(data); |
| 45 | 205 } finally { |
| 206 if (pool !is null) pool.release(); | |
| 207 } | |
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208 } |
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209 |
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210 /** |
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211 * Adds to the receiver a circular or elliptical arc that lies within |
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212 * the specified rectangular area. |
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213 * <p> |
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214 * The resulting arc begins at <code>startAngle</code> and extends |
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215 * for <code>arcAngle</code> degrees. |
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216 * Angles are interpreted such that 0 degrees is at the 3 o'clock |
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217 * position. A positive value indicates a counter-clockwise rotation |
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218 * while a negative value indicates a clockwise rotation. |
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219 * </p><p> |
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220 * The center of the arc is the center of the rectangle whose origin |
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221 * is (<code>x</code>, <code>y</code>) and whose size is specified by the |
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222 * <code>width</code> and <code>height</code> arguments. |
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223 * </p><p> |
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224 * The resulting arc covers an area <code>width + 1</code> pixels wide |
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225 * by <code>height + 1</code> pixels tall. |
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226 * </p> |
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227 * |
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228 * @param x the x coordinate of the upper-left corner of the arc |
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229 * @param y the y coordinate of the upper-left corner of the arc |
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230 * @param width the width of the arc |
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231 * @param height the height of the arc |
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232 * @param startAngle the beginning angle |
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233 * @param arcAngle the angular extent of the arc, relative to the start angle |
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234 * |
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235 * @exception DWTException <ul> |
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236 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
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237 * </ul> |
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238 */ |
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239 public void addArc(float x, float y, float width, float height, float startAngle, float arcAngle) { |
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240 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
| 45 | 241 NSAutoreleasePool pool = null; |
| 242 if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); | |
| 243 try { | |
| 244 NSAffineTransform transform = NSAffineTransform.transform(); | |
| 245 transform.translateXBy(x + width / 2f, y + height / 2f); | |
| 246 transform.scaleXBy(width / 2f, height / 2f); | |
| 247 NSBezierPath path = NSBezierPath.bezierPath(); | |
|
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248 NSPoint center = NSPoint(); |
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249 CGFloat sAngle = -startAngle; |
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250 CGFloat eAngle = -(startAngle + arcAngle); |
| 45 | 251 path.appendBezierPathWithArcWithCenter(center, 1, sAngle, eAngle, arcAngle>0); |
| 252 path.transformUsingAffineTransform(transform); | |
| 253 handle.appendBezierPath(path); | |
| 254 } finally { | |
| 255 if (pool !is null) pool.release(); | |
| 256 } | |
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257 } |
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258 |
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259 /** |
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260 * Adds to the receiver the path described by the parameter. |
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261 * |
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262 * @param path the path to add to the receiver |
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263 * |
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264 * @exception IllegalArgumentException <ul> |
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265 * <li>ERROR_NULL_ARGUMENT - if the parameter is null</li> |
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266 * <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed</li> |
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267 * </ul> |
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268 * @exception DWTException <ul> |
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269 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
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270 * </ul> |
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271 */ |
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272 public void addPath(Path path) { |
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273 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
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274 if (path is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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275 if (path.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
| 45 | 276 NSAutoreleasePool pool = null; |
| 277 if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); | |
| 278 try { | |
| 279 handle.appendBezierPath(path.handle); | |
| 280 } finally { | |
| 281 if (pool !is null) pool.release(); | |
| 282 } | |
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283 } |
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284 |
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285 /** |
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286 * Adds to the receiver the rectangle specified by x, y, width and height. |
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287 * |
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288 * @param x the x coordinate of the rectangle to add |
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289 * @param y the y coordinate of the rectangle to add |
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290 * @param width the width of the rectangle to add |
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291 * @param height the height of the rectangle to add |
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292 * |
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293 * @exception DWTException <ul> |
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294 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
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295 * </ul> |
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296 */ |
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297 public void addRectangle(float x, float y, float width, float height) { |
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298 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
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299 NSRect rect = NSRect(); |
|
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300 rect.x = x; |
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301 rect.y = y; |
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302 rect.width = width; |
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303 rect.height = height; |
| 45 | 304 NSAutoreleasePool pool = null; |
| 305 if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); | |
| 306 try { | |
| 307 handle.appendBezierPathWithRect(rect); | |
| 308 } finally { | |
| 309 if (pool !is null) pool.release(); | |
| 310 } | |
|
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311 } |
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312 |
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313 /** |
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314 * Adds to the receiver the pattern of glyphs generated by drawing |
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315 * the given string using the given font starting at the point (x, y). |
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316 * |
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34
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317 * @param stri the text to use |
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318 * @param x the x coordinate of the starting point |
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319 * @param y the y coordinate of the starting point |
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320 * @param font the font to use |
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321 * |
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322 * @exception IllegalArgumentException <ul> |
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323 * <li>ERROR_NULL_ARGUMENT - if the font is null</li> |
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324 * <li>ERROR_INVALID_ARGUMENT - if the font has been disposed</li> |
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325 * </ul> |
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326 * @exception DWTException <ul> |
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327 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
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328 * </ul> |
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329 */ |
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34
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330 public void addString(String stri, float x, float y, Font font) { |
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331 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
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332 if (font is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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333 if (font.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
| 45 | 334 NSAutoreleasePool pool = null; |
| 335 if (!NSThread.isMainThread()) pool = cast(NSAutoreleasePool) (new NSAutoreleasePool()).alloc().init(); | |
| 336 try { | |
| 337 NSString str = NSString.stringWith(stri); | |
| 338 NSTextStorage textStorage = (cast(NSTextStorage)(new NSTextStorage()).alloc()); | |
| 339 textStorage.initWithString(str); | |
|
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340 NSLayoutManager layoutManager = cast(NSLayoutManager)(new NSLayoutManager()).alloc().init(); |
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341 NSTextContainer textContainer = cast(NSTextContainer)(new NSTextContainer()).alloc(); |
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342 NSSize size = NSSize(); |
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343 size.width = CGFloat.max; //Float.MAX_VALUE; |
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344 size.height = CGFloat.max; //Float.MAX_VALUE; |
| 45 | 345 textContainer.initWithContainerSize(size); |
| 346 textStorage.addLayoutManager(layoutManager); | |
| 347 layoutManager.addTextContainer(textContainer); | |
|
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348 NSRange range = NSRange(); |
| 45 | 349 range.length = str.length(); |
| 350 textStorage.beginEditing(); | |
| 351 textStorage.addAttribute(OS.NSFontAttributeName, font.handle, range); | |
| 352 textStorage.endEditing(); | |
| 353 range = layoutManager.glyphRangeForTextContainer(textContainer); | |
| 354 if (range.length !is 0) { | |
|
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355 NSGlyph* glyphs = cast(NSGlyph*) OS.malloc(4 * range.length * 2); |
| 45 | 356 layoutManager.getGlyphs(glyphs, range); |
| 357 NSBezierPath path = NSBezierPath.bezierPath(); | |
|
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358 NSPoint point = NSPoint(); |
| 45 | 359 point.x = x; |
| 360 point.y = y; | |
| 361 path.moveToPoint(point); | |
| 362 path.appendBezierPathWithGlyphs(glyphs, range.length, font.handle); | |
| 363 NSAffineTransform transform = NSAffineTransform.transform(); | |
| 364 transform.scaleXBy(1, -1); | |
| 365 transform.translateXBy(0, -((2*y) + textStorage.size().height)); | |
| 366 path.transformUsingAffineTransform(transform); | |
| 367 OS.free(glyphs); | |
| 368 handle.appendBezierPath(path); | |
| 369 } | |
| 370 textContainer.release(); | |
| 371 layoutManager.release(); | |
| 372 textStorage.release(); | |
| 373 } finally { | |
| 374 if (pool !is null) pool.release(); | |
|
0
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375 } |
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376 } |
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377 |
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378 /** |
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379 * Closes the current sub path by adding to the receiver a line |
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380 * from the current point of the path back to the starting point |
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381 * of the sub path. |
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382 * |
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383 * @exception DWTException <ul> |
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384 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
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385 * </ul> |
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386 */ |
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387 public void close() { |
|
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388 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
| 45 | 389 NSAutoreleasePool pool = null; |
| 390 if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); | |
| 391 try { | |
| 392 handle.closePath(); | |
| 393 } finally { | |
| 394 if (pool !is null) pool.release(); | |
| 395 } | |
|
0
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396 } |
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397 |
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398 /** |
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399 * Returns <code>true</code> if the specified point is contained by |
|
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400 * the receiver and false otherwise. |
|
380af2bdd8e5
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|
401 * <p> |
|
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402 * If outline is <code>true</code>, the point (x, y) checked for containment in |
|
380af2bdd8e5
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403 * the receiver's outline. If outline is <code>false</code>, the point is |
|
380af2bdd8e5
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404 * checked to see if it is contained within the bounds of the (closed) area |
|
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405 * covered by the receiver. |
|
380af2bdd8e5
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406 * |
|
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407 * @param x the x coordinate of the point to test for containment |
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408 * @param y the y coordinate of the point to test for containment |
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409 * @param gc the GC to use when testing for containment |
|
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410 * @param outline controls whether to check the outline or contained area of the path |
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411 * @return <code>true</code> if the path contains the point and <code>false</code> otherwise |
|
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412 * |
|
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413 * @exception IllegalArgumentException <ul> |
|
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414 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> |
|
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415 * <li>ERROR_INVALID_ARGUMENT - if the gc has been disposed</li> |
|
380af2bdd8e5
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416 * </ul> |
|
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417 * @exception DWTException <ul> |
|
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418 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
|
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419 * </ul> |
|
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420 */ |
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421 public bool contains(float x, float y, GC gc, bool outline) { |
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422 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
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380af2bdd8e5
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423 if (gc is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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380af2bdd8e5
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424 if (gc.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
| 45 | 425 NSAutoreleasePool pool = null; |
| 426 if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); | |
| 427 try { | |
| 428 // gc.checkGC(GC.LINE_CAP | GC.LINE_JOIN | GC.LINE_STYLE | GC.LINE_WIDTH); | |
| 429 //TODO outline | |
|
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Ported dwt.events.*, dwt.graphics.GC, Region, dwt.internal.image.*
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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430 NSPoint point = NSPoint(); |
| 45 | 431 point.x = x; |
| 432 point.y = y; | |
| 433 return handle.containsPoint(point); | |
| 434 } finally { | |
| 435 if (pool !is null) pool.release(); | |
| 436 } | |
|
0
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|
437 } |
|
380af2bdd8e5
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parents:
diff
changeset
|
438 |
|
380af2bdd8e5
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|
439 /** |
|
380af2bdd8e5
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|
440 * Adds to the receiver a cubic bezier curve based on the parameters. |
|
380af2bdd8e5
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|
441 * |
|
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|
442 * @param cx1 the x coordinate of the first control point of the spline |
|
380af2bdd8e5
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diff
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|
443 * @param cy1 the y coordinate of the first control of the spline |
|
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diff
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444 * @param cx2 the x coordinate of the second control of the spline |
|
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diff
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|
445 * @param cy2 the y coordinate of the second control of the spline |
|
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|
446 * @param x the x coordinate of the end point of the spline |
|
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447 * @param y the y coordinate of the end point of the spline |
|
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|
448 * |
|
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449 * @exception DWTException <ul> |
|
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450 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
|
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|
451 * </ul> |
|
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452 */ |
|
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453 public void cubicTo(float cx1, float cy1, float cx2, float cy2, float x, float y) { |
|
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454 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
| 45 | 455 NSAutoreleasePool pool = null; |
| 456 if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); | |
| 457 try { | |
| 458 NSPoint pt = NSPoint(); | |
| 459 pt.x = x; | |
| 460 pt.y = y; | |
|
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Ported dwt.events.*, dwt.graphics.GC, Region, dwt.internal.image.*
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461 NSPoint ct1 = NSPoint(); |
| 45 | 462 ct1.x = cx1; |
| 463 ct1.y = cy1; | |
|
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464 NSPoint ct2 = NSPoint(); |
| 45 | 465 ct2.x = cx2; |
| 466 ct2.y = cy2; | |
| 467 handle.curveToPoint(pt, ct1, ct2); | |
| 468 } finally { | |
| 469 if (pool !is null) pool.release(); | |
| 470 } | |
|
0
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471 } |
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472 |
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473 void destroy() { |
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474 handle.release(); |
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475 handle = null; |
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476 } |
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477 |
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478 /** |
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479 * Replaces the first four elements in the parameter with values that |
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480 * describe the smallest rectangle that will completely contain the |
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481 * receiver (i.e. the bounding box). |
|
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482 * |
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483 * @param bounds the array to hold the result |
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484 * |
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485 * @exception IllegalArgumentException <ul> |
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486 * <li>ERROR_NULL_ARGUMENT - if the parameter is null</li> |
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487 * <li>ERROR_INVALID_ARGUMENT - if the parameter is too small to hold the bounding box</li> |
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488 * </ul> |
|
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489 * @exception DWTException <ul> |
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490 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
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491 * </ul> |
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492 */ |
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493 public void getBounds(float[] bounds) { |
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494 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
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495 if (bounds is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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496 if (bounds.length < 4) DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
| 45 | 497 NSAutoreleasePool pool = null; |
| 498 if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); | |
| 499 try { | |
| 500 NSRect rect = handle.controlPointBounds(); | |
| 501 bounds[0] = (float)/*64*/rect.x; | |
| 502 bounds[1] = (float)/*64*/rect.y; | |
| 503 bounds[2] = (float)/*64*/rect.width; | |
| 504 bounds[3] = (float)/*64*/rect.height; | |
| 505 } finally { | |
| 506 if (pool !is null) pool.release(); | |
| 507 } | |
|
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508 } |
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509 |
|
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510 /** |
|
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511 * Replaces the first two elements in the parameter with values that |
|
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|
512 * describe the current point of the path. |
|
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513 * |
|
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514 * @param point the array to hold the result |
|
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515 * |
|
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516 * @exception IllegalArgumentException <ul> |
|
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517 * <li>ERROR_NULL_ARGUMENT - if the parameter is null</li> |
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518 * <li>ERROR_INVALID_ARGUMENT - if the parameter is too small to hold the end point</li> |
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519 * </ul> |
|
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520 * @exception DWTException <ul> |
|
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521 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
|
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522 * </ul> |
|
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523 */ |
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524 public void getCurrentPoint(float[] point) { |
|
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525 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
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526 if (point is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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527 if (point.length < 2) DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
| 45 | 528 NSAutoreleasePool pool = null; |
| 529 if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); | |
| 530 try { | |
| 531 NSPoint pt = handle.currentPoint(); | |
| 532 point[0] = (float)/*64*/pt.x; | |
| 533 point[1] = (float)/*64*/pt.y; | |
| 534 } finally { | |
| 535 if (pool !is null) pool.release(); | |
| 536 } | |
|
0
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537 } |
|
380af2bdd8e5
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|
538 |
|
380af2bdd8e5
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|
539 /** |
|
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540 * Returns a device independent representation of the receiver. |
|
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541 * |
|
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542 * @return the PathData for the receiver |
|
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|
543 * |
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544 * @exception DWTException <ul> |
|
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545 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
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546 * </ul> |
|
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|
547 * |
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548 * @see PathData |
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549 */ |
|
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550 public PathData getPathData() { |
|
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551 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
| 45 | 552 NSAutoreleasePool pool = null; |
| 553 if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); | |
| 554 try { | |
| 555 int count = (int)/*64*/handle.elementCount(); | |
| 556 int pointCount = 0, typeCount = 0; | |
| 557 byte[] types = new byte[count]; | |
| 558 float[] pointArray = new float[count * 6]; | |
|
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559 NSPointArray points = cast(NSPointArray) OS.malloc(3 * NSPoint.sizeof); |
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560 if (points is null) DWT.error(DWT.ERROR_NO_HANDLES); |
|
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561 NSPoint pt = NSPoint(); |
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562 for (NSInteger i = 0; i < count; i++) { |
| 45 | 563 NSBezierPathElement element = handle.elementAtIndex(i, points); |
| 564 switch (element) { | |
|
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565 case NSMoveToBezierPathElement: |
| 45 | 566 types[typeCount++] = DWT.PATH_MOVE_TO; |
|
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567 OS.memmove(&pt, points, NSPoint.sizeof); |
| 7 | 568 pointArray[pointCount++] = cast(int)pt.x; |
| 569 pointArray[pointCount++] = cast(int)pt.y; | |
| 45 | 570 break; |
|
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571 case NSLineToBezierPathElement: |
| 45 | 572 types[typeCount++] = DWT.PATH_LINE_TO; |
|
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573 OS.memmove(&pt, points, NSPoint.sizeof); |
| 7 | 574 pointArray[pointCount++] = cast(int)pt.x; |
| 575 pointArray[pointCount++] = cast(int)pt.y; | |
| 45 | 576 break; |
|
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577 case NSCurveToBezierPathElement: |
| 45 | 578 types[typeCount++] = DWT.PATH_CUBIC_TO; |
|
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579 OS.memmove(&pt, points, NSPoint.sizeof); |
| 7 | 580 pointArray[pointCount++] = cast(int)pt.x; |
| 581 pointArray[pointCount++] = cast(int)pt.y; | |
|
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|
582 OS.memmove(&pt, points + NSPoint.sizeof, NSPoint.sizeof); |
| 7 | 583 pointArray[pointCount++] = cast(int)pt.x; |
| 584 pointArray[pointCount++] = cast(int)pt.y; | |
|
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585 OS.memmove(&pt, points + NSPoint.sizeof + NSPoint.sizeof, NSPoint.sizeof); |
| 7 | 586 pointArray[pointCount++] = cast(int)pt.x; |
| 587 pointArray[pointCount++] = cast(int)pt.y; | |
| 45 | 588 break; |
|
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589 case NSClosePathBezierPathElement: |
| 45 | 590 types[typeCount++] = DWT.PATH_CLOSE; |
| 591 break; | |
| 592 } | |
|
0
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593 } |
| 45 | 594 OS.free(points); |
| 595 if (pointCount !is pointArray.length) { | |
| 596 float[] temp = new float[pointCount]; | |
| 597 System.arraycopy(pointArray, 0, temp, 0, pointCount); | |
| 598 pointArray = temp; | |
| 599 } | |
| 600 PathData data = new PathData(); | |
| 601 data.types = types; | |
| 602 data.points = pointArray; | |
| 603 return data; | |
| 604 } finally { | |
| 605 if (pool !is null) pool.release(); | |
|
0
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606 } |
|
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|
607 } |
|
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|
608 |
|
36
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diff
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|
609 void init_(PathData data) { |
|
0
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610 byte[] types = data.types; |
|
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611 float[] points = data.points; |
|
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|
612 for (int i = 0, j = 0; i < types.length; i++) { |
|
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|
613 switch (types[i]) { |
|
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|
614 case DWT.PATH_MOVE_TO: |
|
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|
615 moveTo(points[j++], points[j++]); |
|
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616 break; |
|
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|
617 case DWT.PATH_LINE_TO: |
|
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|
618 lineTo(points[j++], points[j++]); |
|
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619 break; |
|
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620 case DWT.PATH_CUBIC_TO: |
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621 cubicTo(points[j++], points[j++], points[j++], points[j++], points[j++], points[j++]); |
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622 break; |
|
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623 case DWT.PATH_QUAD_TO: |
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624 quadTo(points[j++], points[j++], points[j++], points[j++]); |
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625 break; |
|
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626 case DWT.PATH_CLOSE: |
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627 close(); |
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628 break; |
|
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629 default: |
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630 dispose(); |
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631 DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
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632 } |
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633 } |
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634 } |
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635 |
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636 /** |
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637 * Returns <code>true</code> if the Path has been disposed, |
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638 * and <code>false</code> otherwise. |
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639 * <p> |
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640 * This method gets the dispose state for the Path. |
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641 * When a Path has been disposed, it is an error to |
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642 * invoke any other method using the Path. |
|
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643 * |
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644 * @return <code>true</code> when the Path is disposed, and <code>false</code> otherwise |
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645 */ |
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646 public bool isDisposed() { |
|
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647 return handle is null; |
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648 } |
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649 |
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650 /** |
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651 * Adds to the receiver a line from the current point to |
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652 * the point specified by (x, y). |
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653 * |
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654 * @param x the x coordinate of the end of the line to add |
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655 * @param y the y coordinate of the end of the line to add |
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656 * |
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657 * @exception DWTException <ul> |
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658 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
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659 * </ul> |
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660 */ |
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661 public void lineTo(float x, float y) { |
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662 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
| 45 | 663 NSAutoreleasePool pool = null; |
| 664 if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); | |
| 665 try { | |
| 666 NSPoint pt = NSPoint(); | |
| 667 pt.x = x; | |
| 668 pt.y = y; | |
| 669 handle.lineToPoint(pt); | |
| 670 } finally { | |
| 671 if (pool !is null) pool.release(); | |
| 672 } | |
|
0
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673 } |
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674 |
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675 /** |
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676 * Sets the current point of the receiver to the point |
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677 * specified by (x, y). Note that this starts a new |
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678 * sub path. |
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679 * |
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680 * @param x the x coordinate of the new end point |
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681 * @param y the y coordinate of the new end point |
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682 * |
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683 * @exception DWTException <ul> |
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684 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
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685 * </ul> |
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686 */ |
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687 public void moveTo(float x, float y) { |
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688 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
| 45 | 689 NSAutoreleasePool pool = null; |
| 690 if (!NSThread.isMainThread()) pool = cast(NSAutoreleasePool) (new NSAutoreleasePool()).alloc().init(); | |
| 691 try { | |
| 692 NSPoint pt = NSPoint(); | |
| 693 pt.x = x; | |
| 694 pt.y = y; | |
| 695 handle.moveToPoint(pt); | |
| 696 } finally { | |
| 697 if (pool !is null) pool.release(); | |
| 698 } | |
|
0
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699 } |
|
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700 |
|
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701 /** |
|
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702 * Adds to the receiver a quadratic curve based on the parameters. |
|
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703 * |
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704 * @param cx the x coordinate of the control point of the spline |
|
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705 * @param cy the y coordinate of the control point of the spline |
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706 * @param x the x coordinate of the end point of the spline |
|
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707 * @param y the y coordinate of the end point of the spline |
|
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708 * |
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709 * @exception DWTException <ul> |
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710 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
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711 * </ul> |
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712 */ |
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713 public void quadTo(float cx, float cy, float x, float y) { |
|
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714 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
| 45 | 715 NSAutoreleasePool pool = null; |
| 716 if (!NSThread.isMainThread()) pool = cast(NSAutoreleasePool) (new NSAutoreleasePool()).alloc().init(); | |
| 717 try { | |
| 718 NSPoint pt = NSPoint(); | |
| 719 pt.x = x; | |
| 720 pt.y = y; | |
|
34
5123b17c98ef
Ported dwt.events.*, dwt.graphics.GC, Region, dwt.internal.image.*
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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721 NSPoint ct = NSPoint(); |
| 45 | 722 ct.x = cx; |
| 723 ct.y = cy; | |
| 724 handle.curveToPoint(pt, ct, ct); | |
| 725 } finally { | |
| 726 if (pool !is null) pool.release(); | |
| 727 } | |
|
0
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|
728 } |
|
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|
729 |
|
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|
730 /** |
|
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|
731 * Returns a string containing a concise, human-readable |
|
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732 * description of the receiver. |
|
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733 * |
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734 * @return a string representation of the receiver |
|
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|
735 */ |
|
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736 public String toString () { |
|
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|
737 if (isDisposed()) return "Path {*DISPOSED*}"; |
|
34
5123b17c98ef
Ported dwt.events.*, dwt.graphics.GC, Region, dwt.internal.image.*
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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7
diff
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|
738 return Format("Path {{}{}" , handle , "}"); |
|
0
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739 } |
|
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|
740 |
|
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741 } |