Mercurial > projects > dwt-mac
annotate dwt/graphics/Pattern.d @ 156:969e7de37c3d default tip
Fixes to get dwt to work with dmd and ldc
author | Jacob Carlborg <doob@me.com> |
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date | Wed, 08 Jul 2009 21:56:44 +0200 |
parents | e91dcbf77cc7 |
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rev | line source |
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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.Pattern; |
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15 |
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16 import dwt.dwthelper.utils; |
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17 |
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18 import dwt.DWT; |
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19 import dwt.DWTError; |
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20 import dwt.DWTException; |
45 | 21 import dwt.internal.cocoa.NSAutoreleasePool; |
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22 import dwt.internal.cocoa.NSColor; |
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23 import dwt.internal.cocoa.NSGradient; |
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24 import dwt.internal.cocoa.NSPoint; |
45 | 25 import dwt.internal.cocoa.NSThread; |
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26 |
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27 import tango.text.convert.Format; |
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28 |
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29 import dwt.graphics.Color; |
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30 import dwt.graphics.Device; |
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31 import dwt.graphics.GC; |
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32 import dwt.graphics.Image; |
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33 import dwt.graphics.Resource; |
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34 import dwt.internal.c.Carbon; |
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35 |
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36 /** |
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37 * Instances of this class represent patterns to use while drawing. Patterns |
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38 * can be specified either as bitmaps or gradients. |
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39 * <p> |
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40 * Application code must explicitly invoke the <code>Pattern.dispose()</code> |
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41 * method to release the operating system resources managed by each instance |
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42 * when those instances are no longer required. |
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43 * </p> |
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44 * <p> |
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45 * This class requires the operating system's advanced graphics subsystem |
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46 * which may not be available on some platforms. |
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47 * </p> |
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48 * |
45 | 49 * @see <a href="http://www.eclipse.org/swt/snippets/#path">Path, Pattern snippets</a> |
50 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: GraphicsExample</a> | |
51 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
52 * | |
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53 * @since 3.1 |
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54 */ |
3 | 55 public class Pattern : Resource { |
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56 alias Resource.init_ init_; |
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57 |
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58 NSColor color; |
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59 NSGradient gradient; |
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60 NSPoint pt1, pt2; |
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61 Image image; |
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62 CGFloat[] color1, color2; |
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63 int alpha1, alpha2; |
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64 |
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65 /** |
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66 * Constructs a new Pattern given an image. Drawing with the resulting |
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67 * pattern will cause the image to be tiled over the resulting area. |
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68 * <p> |
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69 * This operation requires the operating system's advanced |
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70 * graphics subsystem which may not be available on some |
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71 * platforms. |
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72 * </p> |
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73 * |
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74 * @param device the device on which to allocate the pattern |
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75 * @param image the image that the pattern will draw |
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76 * |
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77 * @exception IllegalArgumentException <ul> |
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78 * <li>ERROR_NULL_ARGUMENT - if the device is null and there is no current device, or the image is null</li> |
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79 * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> |
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80 * </ul> |
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81 * @exception DWTException <ul> |
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82 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> |
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83 * </ul> |
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84 * @exception DWTError <ul> |
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85 * <li>ERROR_NO_HANDLES if a handle for the pattern could not be obtained</li> |
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86 * </ul> |
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87 * |
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88 * @see #dispose() |
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89 */ |
5 | 90 public this(Device device, Image image) { |
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91 super(device); |
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92 if (image is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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93 if (image.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
45 | 94 NSAutoreleasePool pool = null; |
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95 if (!NSThread.isMainThread()) pool = cast(NSAutoreleasePool) (new NSAutoreleasePool()).alloc().init(); |
45 | 96 try { |
97 this.image = image; | |
98 color = NSColor.colorWithPatternImage(image.handle); | |
99 color.retain(); | |
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100 init_(); |
45 | 101 } finally { |
102 if (pool !is null) pool.release(); | |
103 } | |
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104 } |
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105 |
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106 /** |
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107 * Constructs a new Pattern that represents a linear, two color |
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108 * gradient. Drawing with the pattern will cause the resulting area to be |
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109 * tiled with the gradient specified by the arguments. |
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110 * <p> |
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111 * This operation requires the operating system's advanced |
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112 * graphics subsystem which may not be available on some |
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113 * platforms. |
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114 * </p> |
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115 * |
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116 * @param device the device on which to allocate the pattern |
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117 * @param x1 the x coordinate of the starting corner of the gradient |
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118 * @param y1 the y coordinate of the starting corner of the gradient |
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119 * @param x2 the x coordinate of the ending corner of the gradient |
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120 * @param y2 the y coordinate of the ending corner of the gradient |
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121 * @param color1 the starting color of the gradient |
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122 * @param color2 the ending color of the gradient |
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123 * |
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124 * @exception IllegalArgumentException <ul> |
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125 * <li>ERROR_NULL_ARGUMENT - if the device is null and there is no current device, |
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126 * or if either color1 or color2 is null</li> |
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127 * <li>ERROR_INVALID_ARGUMENT - if either color1 or color2 has been disposed</li> |
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128 * </ul> |
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129 * @exception DWTException <ul> |
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130 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> |
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131 * </ul> |
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132 * @exception DWTError <ul> |
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133 * <li>ERROR_NO_HANDLES if a handle for the pattern could not be obtained</li> |
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134 * </ul> |
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135 * |
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136 * @see #dispose() |
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137 */ |
5 | 138 public this(Device device, float x1, float y1, float x2, float y2, Color color1, Color color2) { |
0
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139 this(device, x1, y1, x2, y2, color1, 0xFF, color2, 0xFF); |
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140 } |
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141 /** |
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142 * Constructs a new Pattern that represents a linear, two color |
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143 * gradient. Drawing with the pattern will cause the resulting area to be |
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144 * tiled with the gradient specified by the arguments. |
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145 * <p> |
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146 * This operation requires the operating system's advanced |
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147 * graphics subsystem which may not be available on some |
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148 * platforms. |
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149 * </p> |
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150 * |
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151 * @param device the device on which to allocate the pattern |
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152 * @param x1 the x coordinate of the starting corner of the gradient |
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153 * @param y1 the y coordinate of the starting corner of the gradient |
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154 * @param x2 the x coordinate of the ending corner of the gradient |
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155 * @param y2 the y coordinate of the ending corner of the gradient |
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156 * @param color1 the starting color of the gradient |
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157 * @param alpha1 the starting alpha value of the gradient |
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158 * @param color2 the ending color of the gradient |
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159 * @param alpha2 the ending alpha value of the gradient |
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160 * |
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161 * @exception IllegalArgumentException <ul> |
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162 * <li>ERROR_NULL_ARGUMENT - if the device is null and there is no current device, |
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163 * or if either color1 or color2 is null</li> |
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164 * <li>ERROR_INVALID_ARGUMENT - if either color1 or color2 has been disposed</li> |
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165 * </ul> |
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166 * @exception DWTException <ul> |
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167 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> |
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168 * </ul> |
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169 * @exception DWTError <ul> |
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170 * <li>ERROR_NO_HANDLES if a handle for the pattern could not be obtained</li> |
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171 * </ul> |
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172 * |
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173 * @see #dispose() |
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174 * |
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175 * @since 3.2 |
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176 */ |
5 | 177 public this(Device device, float x1, float y1, float x2, float y2, Color color1, int alpha1, Color color2, int alpha2) { |
0
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178 super(device); |
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179 if (color1 is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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180 if (color1.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
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181 if (color2 is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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182 if (color2.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
45 | 183 NSAutoreleasePool pool = null; |
184 if (!NSThread.isMainThread()) pool = cast(NSAutoreleasePool) (new NSAutoreleasePool()).alloc().init(); | |
185 try { | |
186 pt1 = NSPoint(); | |
187 pt2 = NSPoint(); | |
188 pt1.x = x1; | |
189 pt1.y = y1; | |
190 pt2.x = x2; | |
191 pt2.y = y2; | |
192 this.color1 = color1.handle; | |
193 this.color2 = color2.handle; | |
194 this.alpha1 = alpha1; | |
195 this.alpha2 = alpha2; | |
30
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196 NSColor start = NSColor.colorWithDeviceRed(cast(CGFloat) color1.handle[0], cast(CGFloat) color1.handle[1], cast(CGFloat) color1.handle[2], cast(CGFloat) (alpha1 / 255f)); |
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197 NSColor end = NSColor.colorWithDeviceRed(cast(CGFloat) color2.handle[0], cast(CGFloat) color2.handle[1], cast(CGFloat) color2.handle[2], cast(CGFloat) (alpha2 / 255f)); |
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198 gradient = (cast(NSGradient)(new NSGradient()).alloc()).initWithStartingColor(start, end); |
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199 init_(); |
45 | 200 } finally { |
201 if (pool !is null) pool.release(); | |
202 } | |
0
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203 } |
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204 |
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205 void destroy() { |
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206 if (color !is null) color.release(); |
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207 color = null; |
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208 if (gradient !is null) gradient.release(); |
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209 gradient = null; |
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210 image = null; |
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211 color1 = color2 = null; |
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212 } |
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213 |
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214 /** |
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215 * Returns <code>true</code> if the Pattern has been disposed, |
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216 * and <code>false</code> otherwise. |
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217 * <p> |
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218 * This method gets the dispose state for the Pattern. |
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219 * When a Pattern has been disposed, it is an error to |
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220 * invoke any other method using the Pattern. |
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221 * |
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222 * @return <code>true</code> when the Pattern is disposed, and <code>false</code> otherwise |
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223 */ |
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224 public bool isDisposed() { |
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225 return device is null; |
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226 } |
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227 |
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228 /** |
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229 * Returns a string containing a concise, human-readable |
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230 * description of the receiver. |
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231 * |
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232 * @return a string representation of the receiver |
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233 */ |
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234 public String toString() { |
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235 if (isDisposed()) return "Pattern {*DISPOSED*}"; |
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236 return Format("Pattern {{}{}" , (color !is null ? color.id : gradient.id) , "}"); |
0
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237 } |
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238 |
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239 } |