Mercurial > projects > dwt-mac
annotate dwt/graphics/Pattern.d @ 36:db5a898b2119
Fixed a lot of compile errors
author | Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> |
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date | Tue, 07 Oct 2008 12:56:18 +0200 |
parents | 93b13b15f0b1 |
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 * Port to the D programming language: |
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12 * Jacob Carlborg <jacob.carlborg@gmail.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; |
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21 import dwt.internal.cocoa.NSColor; |
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22 import dwt.internal.cocoa.NSGradient; |
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23 import dwt.internal.cocoa.NSPoint; |
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24 |
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25 import tango.text.convert.Format; |
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26 |
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27 import dwt.graphics.Color; |
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28 import dwt.graphics.Device; |
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29 import dwt.graphics.GC; |
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30 import dwt.graphics.Image; |
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31 import dwt.graphics.Resource; |
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32 import dwt.internal.cocoa.CGFloat; |
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33 |
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34 /** |
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35 * Instances of this class represent patterns to use while drawing. Patterns |
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36 * can be specified either as bitmaps or gradients. |
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37 * <p> |
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38 * Application code must explicitly invoke the <code>Pattern.dispose()</code> |
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39 * method to release the operating system resources managed by each instance |
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40 * when those instances are no longer required. |
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41 * </p> |
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42 * <p> |
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43 * This class requires the operating system's advanced graphics subsystem |
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44 * which may not be available on some platforms. |
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45 * </p> |
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46 * |
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47 * @since 3.1 |
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48 */ |
3 | 49 public class Pattern : Resource { |
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50 alias Resource.init_ init_; |
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51 |
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52 NSColor color; |
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53 NSGradient gradient; |
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54 NSPoint pt1, pt2; |
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55 Image image; |
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56 float[] color1, color2; |
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57 int alpha1, alpha2; |
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58 |
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59 /** |
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60 * Constructs a new Pattern given an image. Drawing with the resulting |
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61 * pattern will cause the image to be tiled over the resulting area. |
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62 * <p> |
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63 * This operation requires the operating system's advanced |
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64 * graphics subsystem which may not be available on some |
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65 * platforms. |
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66 * </p> |
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67 * |
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68 * @param device the device on which to allocate the pattern |
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69 * @param image the image that the pattern will draw |
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70 * |
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71 * @exception IllegalArgumentException <ul> |
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72 * <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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73 * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> |
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74 * </ul> |
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75 * @exception DWTException <ul> |
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76 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> |
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77 * </ul> |
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78 * @exception DWTError <ul> |
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79 * <li>ERROR_NO_HANDLES if a handle for the pattern could not be obtained</li> |
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80 * </ul> |
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81 * |
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82 * @see #dispose() |
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83 */ |
5 | 84 public this(Device device, Image image) { |
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85 super(device); |
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86 if (image is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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87 if (image.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
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88 this.image = image; |
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89 color = NSColor.colorWithPatternImage(image.handle); |
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90 color.retain(); |
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91 init_(); |
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92 } |
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93 |
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94 /** |
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95 * Constructs a new Pattern that represents a linear, two color |
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96 * gradient. Drawing with the pattern will cause the resulting area to be |
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97 * tiled with the gradient specified by the arguments. |
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98 * <p> |
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99 * This operation requires the operating system's advanced |
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100 * graphics subsystem which may not be available on some |
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101 * platforms. |
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102 * </p> |
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103 * |
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104 * @param device the device on which to allocate the pattern |
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105 * @param x1 the x coordinate of the starting corner of the gradient |
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106 * @param y1 the y coordinate of the starting corner of the gradient |
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107 * @param x2 the x coordinate of the ending corner of the gradient |
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108 * @param y2 the y coordinate of the ending corner of the gradient |
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109 * @param color1 the starting color of the gradient |
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110 * @param color2 the ending color of the gradient |
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111 * |
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112 * @exception IllegalArgumentException <ul> |
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113 * <li>ERROR_NULL_ARGUMENT - if the device is null and there is no current device, |
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114 * or if either color1 or color2 is null</li> |
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115 * <li>ERROR_INVALID_ARGUMENT - if either color1 or color2 has been disposed</li> |
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116 * </ul> |
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117 * @exception DWTException <ul> |
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118 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> |
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119 * </ul> |
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120 * @exception DWTError <ul> |
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121 * <li>ERROR_NO_HANDLES if a handle for the pattern could not be obtained</li> |
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122 * </ul> |
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123 * |
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124 * @see #dispose() |
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125 */ |
5 | 126 public this(Device device, float x1, float y1, float x2, float y2, Color color1, Color color2) { |
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127 this(device, x1, y1, x2, y2, color1, 0xFF, color2, 0xFF); |
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128 } |
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129 /** |
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130 * Constructs a new Pattern that represents a linear, two color |
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131 * gradient. Drawing with the pattern will cause the resulting area to be |
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132 * tiled with the gradient specified by the arguments. |
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133 * <p> |
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134 * This operation requires the operating system's advanced |
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135 * graphics subsystem which may not be available on some |
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136 * platforms. |
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137 * </p> |
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138 * |
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139 * @param device the device on which to allocate the pattern |
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140 * @param x1 the x coordinate of the starting corner of the gradient |
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141 * @param y1 the y coordinate of the starting corner of the gradient |
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142 * @param x2 the x coordinate of the ending corner of the gradient |
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143 * @param y2 the y coordinate of the ending corner of the gradient |
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144 * @param color1 the starting color of the gradient |
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145 * @param alpha1 the starting alpha value of the gradient |
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146 * @param color2 the ending color of the gradient |
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147 * @param alpha2 the ending alpha value of the gradient |
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148 * |
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149 * @exception IllegalArgumentException <ul> |
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150 * <li>ERROR_NULL_ARGUMENT - if the device is null and there is no current device, |
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151 * or if either color1 or color2 is null</li> |
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152 * <li>ERROR_INVALID_ARGUMENT - if either color1 or color2 has been disposed</li> |
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153 * </ul> |
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154 * @exception DWTException <ul> |
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155 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> |
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156 * </ul> |
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157 * @exception DWTError <ul> |
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158 * <li>ERROR_NO_HANDLES if a handle for the pattern could not be obtained</li> |
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159 * </ul> |
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160 * |
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161 * @see #dispose() |
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162 * |
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163 * @since 3.2 |
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164 */ |
5 | 165 public this(Device device, float x1, float y1, float x2, float y2, Color color1, int alpha1, Color color2, int alpha2) { |
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166 super(device); |
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167 if (color1 is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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168 if (color1.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
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169 if (color2 is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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170 if (color2.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
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171 pt1 = NSPoint(); |
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172 pt2 = NSPoint(); |
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173 pt1.x = x1; |
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174 pt1.y = y1; |
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175 pt2.x = x2; |
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176 pt2.y = y2; |
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177 this.color1 = color1.handle; |
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178 this.color2 = color2.handle; |
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179 this.alpha1 = alpha1; |
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180 this.alpha2 = alpha2; |
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181 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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182 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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183 gradient = (cast(NSGradient)(new NSGradient()).alloc()).initWithStartingColor(start, end); |
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184 init_(); |
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185 } |
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186 |
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187 void destroy() { |
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188 if (color !is null) color.release(); |
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189 color = null; |
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190 if (gradient !is null) gradient.release(); |
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191 gradient = null; |
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192 image = null; |
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193 color1 = color2 = null; |
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194 } |
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195 |
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196 /** |
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197 * Returns <code>true</code> if the Pattern has been disposed, |
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198 * and <code>false</code> otherwise. |
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199 * <p> |
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200 * This method gets the dispose state for the Pattern. |
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201 * When a Pattern has been disposed, it is an error to |
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202 * invoke any other method using the Pattern. |
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203 * |
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204 * @return <code>true</code> when the Pattern is disposed, and <code>false</code> otherwise |
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205 */ |
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206 public bool isDisposed() { |
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207 return device is null; |
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208 } |
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209 |
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210 /** |
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211 * Returns a string containing a concise, human-readable |
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212 * description of the receiver. |
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213 * |
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214 * @return a string representation of the receiver |
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215 */ |
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216 public String toString() { |
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217 if (isDisposed()) return "Pattern {*DISPOSED*}"; |
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218 return Format("Pattern {{}{}" , (color !is null ? color.id_ : gradient.id_) , "}"); |
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219 } |
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220 |
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221 } |