Mercurial > projects > dwt-win
annotate dwt/graphics/Image.d @ 213:36f5cb12e1a2
Update to SWT 3.4M7
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 17 May 2008 17:34:28 +0200 |
parents | ab60f3309436 |
children | e2affbeb686d |
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 |
23 | 10 * Port to the D programming language: |
11 * Frank Benoit <benoit@tionex.de> | |
22
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12 *******************************************************************************/ |
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13 module dwt.graphics.Image; |
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14 |
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15 |
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16 import dwt.DWT; |
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17 import dwt.DWTError; |
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18 import dwt.DWTException; |
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19 import dwt.internal.gdip.Gdip; |
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20 import dwt.internal.win32.OS; |
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21 |
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22 import dwt.graphics.Color; |
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23 import dwt.graphics.Device; |
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24 import dwt.graphics.Drawable; |
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25 import dwt.graphics.GC; |
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26 import dwt.graphics.GCData; |
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27 import dwt.graphics.ImageData; |
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28 import dwt.graphics.PaletteData; |
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29 import dwt.graphics.RGB; |
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30 import dwt.graphics.Rectangle; |
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31 import dwt.graphics.Resource; |
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32 |
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33 |
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34 import dwt.dwthelper.InputStream; |
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35 import dwt.dwthelper.utils; |
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36 |
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37 import tango.text.convert.Format; |
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38 //import tango.stdc.string; |
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39 //import tango.stdc.stringz; |
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40 |
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41 /** |
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42 * Instances of this class are graphics which have been prepared |
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43 * for display on a specific device. That is, they are ready |
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44 * to paint using methods such as <code>GC.drawImage()</code> |
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45 * and display on widgets with, for example, <code>Button.setImage()</code>. |
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46 * <p> |
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47 * If loaded from a file format that supports it, an |
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48 * <code>Image</code> may have transparency, meaning that certain |
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49 * pixels are specified as being transparent when drawn. Examples |
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50 * of file formats that support transparency are GIF and PNG. |
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51 * </p><p> |
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52 * There are two primary ways to use <code>Images</code>. |
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53 * The first is to load a graphic file from disk and create an |
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54 * <code>Image</code> from it. This is done using an <code>Image</code> |
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55 * constructor, for example: |
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56 * <pre> |
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57 * Image i = new Image(device, "C:\\graphic.bmp"); |
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58 * </pre> |
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59 * A graphic file may contain a color table specifying which |
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60 * colors the image was intended to possess. In the above example, |
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61 * these colors will be mapped to the closest available color in |
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62 * DWT. It is possible to get more control over the mapping of |
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63 * colors as the image is being created, using code of the form: |
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64 * <pre> |
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65 * ImageData data = new ImageData("C:\\graphic.bmp"); |
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66 * RGB[] rgbs = data.getRGBs(); |
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67 * // At this point, rgbs contains specifications of all |
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68 * // the colors contained within this image. You may |
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69 * // allocate as many of these colors as you wish by |
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70 * // using the Color constructor Color(RGB), then |
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71 * // create the image: |
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72 * Image i = new Image(device, data); |
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73 * </pre> |
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74 * <p> |
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75 * Applications which require even greater control over the image |
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76 * loading process should use the support provided in class |
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77 * <code>ImageLoader</code>. |
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78 * </p><p> |
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79 * Application code must explicitly invoke the <code>Image.dispose()</code> |
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80 * method to release the operating system resources managed by each instance |
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81 * when those instances are no longer required. |
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82 * </p> |
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83 * |
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84 * @see Color |
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85 * @see ImageData |
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86 * @see ImageLoader |
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87 */ |
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88 |
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89 public final class Image : Resource, Drawable { |
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90 |
213 | 91 alias Resource.init_ init_; |
92 | |
22
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93 /** |
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94 * specifies whether the receiver is a bitmap or an icon |
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95 * (one of <code>DWT.BITMAP</code>, <code>DWT.ICON</code>) |
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96 * <p> |
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97 * <b>IMPORTANT:</b> This field is <em>not</em> part of the DWT |
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98 * public API. It is marked public only so that it can be shared |
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99 * within the packages provided by DWT. It is not available on all |
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100 * platforms and should never be accessed from application code. |
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101 * </p> |
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102 */ |
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103 public int type; |
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104 |
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105 /** |
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106 * the handle to the OS image resource |
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107 * (Warning: This field is platform dependent) |
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108 * <p> |
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109 * <b>IMPORTANT:</b> This field is <em>not</em> part of the DWT |
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110 * public API. It is marked public only so that it can be shared |
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111 * within the packages provided by DWT. It is not available on all |
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112 * platforms and should never be accessed from application code. |
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113 * </p> |
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114 */ |
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115 public HGDIOBJ handle; |
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116 |
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117 /** |
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118 * specifies the transparent pixel |
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119 */ |
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120 int transparentPixel = -1; |
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121 |
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122 /** |
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123 * the GC which is drawing on the image |
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124 */ |
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125 GC memGC; |
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126 |
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127 /** |
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128 * the alpha data for the image |
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129 */ |
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130 byte[] alphaData; |
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131 |
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132 /** |
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133 * the global alpha value to be used for every pixel |
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134 */ |
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135 int alpha = -1; |
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136 |
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137 /** |
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138 * the image data used to create this image if it is a |
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139 * icon. Used only in WinCE |
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140 */ |
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141 ImageData data; |
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142 |
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143 /** |
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144 * width of the image |
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145 */ |
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146 int width = -1; |
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147 |
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148 /** |
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149 * height of the image |
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150 */ |
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151 int height = -1; |
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152 |
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153 /** |
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154 * specifies the default scanline padding |
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155 */ |
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156 static const int DEFAULT_SCANLINE_PAD = 4; |
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157 |
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158 /** |
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159 * Prevents uninitialized instances from being created outside the package. |
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160 */ |
213 | 161 this (Device device) { |
162 super(device); | |
22
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163 } |
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164 |
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165 /** |
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166 * Constructs an empty instance of this class with the |
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167 * specified width and height. The result may be drawn upon |
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168 * by creating a GC and using any of its drawing operations, |
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169 * as shown in the following example: |
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170 * <pre> |
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171 * Image i = new Image(device, width, height); |
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172 * GC gc = new GC(i); |
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173 * gc.drawRectangle(0, 0, 50, 50); |
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174 * gc.dispose(); |
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175 * </pre> |
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176 * <p> |
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177 * Note: Some platforms may have a limitation on the size |
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178 * of image that can be created (size depends on width, height, |
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179 * and depth). For example, Windows 95, 98, and ME do not allow |
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180 * images larger than 16M. |
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181 * </p> |
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182 * |
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183 * @param device the device on which to create the image |
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184 * @param width the width of the new image |
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185 * @param height the height of the new image |
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186 * |
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187 * @exception IllegalArgumentException <ul> |
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188 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> |
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189 * <li>ERROR_INVALID_ARGUMENT - if either the width or height is negative or zero</li> |
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190 * </ul> |
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191 * @exception DWTError <ul> |
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192 * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> |
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193 * </ul> |
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194 */ |
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195 public this(Device device, int width, int height) { |
213 | 196 super(device); |
197 init_(width, height); | |
198 init_(); | |
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199 } |
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200 |
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201 /** |
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202 * Constructs a new instance of this class based on the |
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203 * provided image, with an appearance that varies depending |
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204 * on the value of the flag. The possible flag values are: |
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205 * <dl> |
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206 * <dt><b>IMAGE_COPY</b></dt> |
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207 * <dd>the result is an identical copy of srcImage</dd> |
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208 * <dt><b>IMAGE_DISABLE</b></dt> |
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209 * <dd>the result is a copy of srcImage which has a <em>disabled</em> look</dd> |
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210 * <dt><b>IMAGE_GRAY</b></dt> |
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211 * <dd>the result is a copy of srcImage which has a <em>gray scale</em> look</dd> |
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212 * </dl> |
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213 * |
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214 * @param device the device on which to create the image |
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215 * @param srcImage the image to use as the source |
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216 * @param flag the style, either <code>IMAGE_COPY</code>, <code>IMAGE_DISABLE</code> or <code>IMAGE_GRAY</code> |
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217 * |
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218 * @exception IllegalArgumentException <ul> |
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219 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> |
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220 * <li>ERROR_NULL_ARGUMENT - if srcImage is null</li> |
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221 * <li>ERROR_INVALID_ARGUMENT - if the flag is not one of <code>IMAGE_COPY</code>, <code>IMAGE_DISABLE</code> or <code>IMAGE_GRAY</code></li> |
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222 * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> |
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223 * </ul> |
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224 * @exception DWTException <ul> |
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225 * <li>ERROR_INVALID_IMAGE - if the image is not a bitmap or an icon, or is otherwise in an invalid state</li> |
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226 * <li>ERROR_UNSUPPORTED_DEPTH - if the depth of the image is not supported</li> |
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227 * </ul> |
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228 * @exception DWTError <ul> |
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229 * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> |
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230 * </ul> |
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231 */ |
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232 public this(Device device, Image srcImage, int flag) { |
213 | 233 super(device); |
234 device = this.device; | |
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235 if (srcImage is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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236 if (srcImage.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
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237 Rectangle rect = srcImage.getBounds(); |
213 | 238 this.type = srcImage.type; |
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239 switch (flag) { |
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240 case DWT.IMAGE_COPY: { |
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241 switch (type) { |
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242 case DWT.BITMAP: |
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243 /* Get the HDC for the device */ |
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244 auto hDC = device.internal_new_GC(null); |
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245 |
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246 /* Copy the bitmap */ |
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247 auto hdcSource = OS.CreateCompatibleDC(hDC); |
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248 auto hdcDest = OS.CreateCompatibleDC(hDC); |
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249 auto hOldSrc = OS.SelectObject(hdcSource, srcImage.handle); |
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250 BITMAP bm; |
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251 OS.GetObject(srcImage.handle, BITMAP.sizeof, &bm); |
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252 handle = OS.CreateCompatibleBitmap(hdcSource, rect.width, bm.bmBits !is null ? -rect.height : rect.height); |
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253 if (handle is null) DWT.error(DWT.ERROR_NO_HANDLES); |
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254 auto hOldDest = OS.SelectObject(hdcDest, handle); |
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255 OS.BitBlt(hdcDest, 0, 0, rect.width, rect.height, hdcSource, 0, 0, OS.SRCCOPY); |
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256 OS.SelectObject(hdcSource, hOldSrc); |
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257 OS.SelectObject(hdcDest, hOldDest); |
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258 OS.DeleteDC(hdcSource); |
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259 OS.DeleteDC(hdcDest); |
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260 |
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261 /* Release the HDC for the device */ |
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262 device.internal_dispose_GC(hDC, null); |
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263 |
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264 transparentPixel = srcImage.transparentPixel; |
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265 alpha = srcImage.alpha; |
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266 if (srcImage.alphaData !is null) { |
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267 alphaData = new byte[srcImage.alphaData.length]; |
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268 System.arraycopy(srcImage.alphaData, 0, alphaData, 0, alphaData.length); |
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269 } |
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270 break; |
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271 case DWT.ICON: |
117 | 272 static if (OS.IsWinCE) { |
213 | 273 init_(srcImage.data); |
22
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274 } else { |
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275 handle = OS.CopyImage(srcImage.handle, OS.IMAGE_ICON, rect.width, rect.height, 0); |
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276 if (handle is null) DWT.error(DWT.ERROR_NO_HANDLES); |
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277 } |
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278 break; |
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279 default: |
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280 DWT.error(DWT.ERROR_INVALID_IMAGE); |
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281 } |
213 | 282 break; |
22
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283 } |
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284 case DWT.IMAGE_DISABLE: { |
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285 ImageData data = srcImage.getImageData(); |
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286 PaletteData palette = data.palette; |
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287 RGB[] rgbs = new RGB[3]; |
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288 rgbs[0] = device.getSystemColor(DWT.COLOR_BLACK).getRGB(); |
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289 rgbs[1] = device.getSystemColor(DWT.COLOR_WIDGET_NORMAL_SHADOW).getRGB(); |
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290 rgbs[2] = device.getSystemColor(DWT.COLOR_WIDGET_BACKGROUND).getRGB(); |
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291 ImageData newData = new ImageData(rect.width, rect.height, 8, new PaletteData(rgbs)); |
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292 newData.alpha = data.alpha; |
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293 newData.alphaData = data.alphaData; |
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294 newData.maskData = data.maskData; |
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295 newData.maskPad = data.maskPad; |
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296 if (data.transparentPixel !is -1) newData.transparentPixel = 0; |
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297 |
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298 /* Convert the pixels. */ |
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299 int[] scanline = new int[rect.width]; |
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300 int[] maskScanline = null; |
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301 ImageData mask = null; |
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302 if (data.maskData !is null) mask = data.getTransparencyMask(); |
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303 if (mask !is null) maskScanline = new int[rect.width]; |
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304 int redMask = palette.redMask; |
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305 int greenMask = palette.greenMask; |
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306 int blueMask = palette.blueMask; |
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307 int redShift = palette.redShift; |
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308 int greenShift = palette.greenShift; |
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309 int blueShift = palette.blueShift; |
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310 for (int y=0; y<rect.height; y++) { |
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311 int offset = y * newData.bytesPerLine; |
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312 data.getPixels(0, y, rect.width, scanline, 0); |
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313 if (mask !is null) mask.getPixels(0, y, rect.width, maskScanline, 0); |
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314 for (int x=0; x<rect.width; x++) { |
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315 int pixel = scanline[x]; |
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316 if (!((data.transparentPixel !is -1 && pixel is data.transparentPixel) || (mask !is null && maskScanline[x] is 0))) { |
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317 int red, green, blue; |
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318 if (palette.isDirect) { |
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319 red = pixel & redMask; |
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320 red = (redShift < 0) ? red >>> -redShift : red << redShift; |
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321 green = pixel & greenMask; |
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322 green = (greenShift < 0) ? green >>> -greenShift : green << greenShift; |
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323 blue = pixel & blueMask; |
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324 blue = (blueShift < 0) ? blue >>> -blueShift : blue << blueShift; |
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325 } else { |
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326 red = palette.colors[pixel].red; |
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327 green = palette.colors[pixel].green; |
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328 blue = palette.colors[pixel].blue; |
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329 } |
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330 int intensity = red * red + green * green + blue * blue; |
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331 if (intensity < 98304) { |
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332 newData.data[offset] = cast(byte)1; |
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333 } else { |
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334 newData.data[offset] = cast(byte)2; |
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335 } |
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336 } |
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337 offset++; |
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338 } |
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339 } |
213 | 340 init_ (newData); |
341 break; | |
22
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342 } |
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343 case DWT.IMAGE_GRAY: { |
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344 ImageData data = srcImage.getImageData(); |
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345 PaletteData palette = data.palette; |
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346 ImageData newData = data; |
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347 if (!palette.isDirect) { |
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348 /* Convert the palette entries to gray. */ |
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349 RGB [] rgbs = palette.getRGBs(); |
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350 for (int i=0; i<rgbs.length; i++) { |
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351 if (data.transparentPixel !is i) { |
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352 RGB color = rgbs [i]; |
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353 int red = color.red; |
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354 int green = color.green; |
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355 int blue = color.blue; |
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356 int intensity = (red+red+green+green+green+green+green+blue) >> 3; |
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357 color.red = color.green = color.blue = intensity; |
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358 } |
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359 } |
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360 newData.palette = new PaletteData(rgbs); |
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361 } else { |
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362 /* Create a 8 bit depth image data with a gray palette. */ |
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363 RGB[] rgbs = new RGB[256]; |
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364 for (int i=0; i<rgbs.length; i++) { |
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365 rgbs[i] = new RGB(i, i, i); |
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366 } |
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367 newData = new ImageData(rect.width, rect.height, 8, new PaletteData(rgbs)); |
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368 newData.alpha = data.alpha; |
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369 newData.alphaData = data.alphaData; |
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370 newData.maskData = data.maskData; |
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371 newData.maskPad = data.maskPad; |
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372 if (data.transparentPixel !is -1) newData.transparentPixel = 254; |
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373 |
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374 /* Convert the pixels. */ |
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375 int[] scanline = new int[rect.width]; |
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376 int redMask = palette.redMask; |
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377 int greenMask = palette.greenMask; |
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378 int blueMask = palette.blueMask; |
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379 int redShift = palette.redShift; |
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380 int greenShift = palette.greenShift; |
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381 int blueShift = palette.blueShift; |
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382 for (int y=0; y<rect.height; y++) { |
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383 int offset = y * newData.bytesPerLine; |
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384 data.getPixels(0, y, rect.width, scanline, 0); |
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385 for (int x=0; x<rect.width; x++) { |
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386 int pixel = scanline[x]; |
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387 if (pixel !is data.transparentPixel) { |
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388 int red = pixel & redMask; |
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389 red = (redShift < 0) ? red >>> -redShift : red << redShift; |
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390 int green = pixel & greenMask; |
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391 green = (greenShift < 0) ? green >>> -greenShift : green << greenShift; |
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392 int blue = pixel & blueMask; |
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393 blue = (blueShift < 0) ? blue >>> -blueShift : blue << blueShift; |
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394 int intensity = (red+red+green+green+green+green+green+blue) >> 3; |
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395 if (newData.transparentPixel is intensity) intensity = 255; |
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396 newData.data[offset] = cast(byte)intensity; |
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397 } else { |
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398 newData.data[offset] = cast(byte)254; |
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399 } |
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400 offset++; |
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401 } |
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402 } |
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403 } |
213 | 404 init_ (newData); |
405 break; | |
22
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406 } |
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407 default: |
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408 DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
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409 } |
213 | 410 init_(); |
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411 } |
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412 |
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413 /** |
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414 * Constructs an empty instance of this class with the |
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415 * width and height of the specified rectangle. The result |
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416 * may be drawn upon by creating a GC and using any of its |
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417 * drawing operations, as shown in the following example: |
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418 * <pre> |
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419 * Image i = new Image(device, boundsRectangle); |
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420 * GC gc = new GC(i); |
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421 * gc.drawRectangle(0, 0, 50, 50); |
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422 * gc.dispose(); |
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423 * </pre> |
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424 * <p> |
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425 * Note: Some platforms may have a limitation on the size |
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426 * of image that can be created (size depends on width, height, |
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427 * and depth). For example, Windows 95, 98, and ME do not allow |
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428 * images larger than 16M. |
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429 * </p> |
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430 * |
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431 * @param device the device on which to create the image |
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432 * @param bounds a rectangle specifying the image's width and height (must not be null) |
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433 * |
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434 * @exception IllegalArgumentException <ul> |
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435 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> |
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436 * <li>ERROR_NULL_ARGUMENT - if the bounds rectangle is null</li> |
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437 * <li>ERROR_INVALID_ARGUMENT - if either the rectangle's width or height is negative</li> |
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438 * </ul> |
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439 * @exception DWTError <ul> |
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440 * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> |
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441 * </ul> |
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442 */ |
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443 public this(Device device, Rectangle bounds) { |
213 | 444 super(device); |
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445 if (bounds is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
213 | 446 init_(bounds.width, bounds.height); |
447 init_(); | |
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448 } |
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449 |
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450 /** |
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451 * Constructs an instance of this class from the given |
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452 * <code>ImageData</code>. |
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453 * |
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454 * @param device the device on which to create the image |
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455 * @param data the image data to create the image from (must not be null) |
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456 * |
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457 * @exception IllegalArgumentException <ul> |
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458 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> |
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459 * <li>ERROR_NULL_ARGUMENT - if the image data is null</li> |
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460 * </ul> |
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461 * @exception DWTException <ul> |
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462 * <li>ERROR_UNSUPPORTED_DEPTH - if the depth of the ImageData is not supported</li> |
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463 * </ul> |
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464 * @exception DWTError <ul> |
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465 * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> |
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466 * </ul> |
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467 */ |
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468 public this(Device device, ImageData data) { |
213 | 469 super(device); |
470 init_(data); | |
471 init_(); | |
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472 } |
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473 |
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474 /** |
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475 * Constructs an instance of this class, whose type is |
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476 * <code>DWT.ICON</code>, from the two given <code>ImageData</code> |
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477 * objects. The two images must be the same size. Pixel transparency |
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478 * in either image will be ignored. |
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479 * <p> |
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480 * The mask image should contain white wherever the icon is to be visible, |
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481 * and black wherever the icon is to be transparent. In addition, |
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482 * the source image should contain black wherever the icon is to be |
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483 * transparent. |
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484 * </p> |
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485 * |
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486 * @param device the device on which to create the icon |
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487 * @param source the color data for the icon |
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488 * @param mask the mask data for the icon |
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489 * |
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490 * @exception IllegalArgumentException <ul> |
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491 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> |
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492 * <li>ERROR_NULL_ARGUMENT - if either the source or mask is null </li> |
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493 * <li>ERROR_INVALID_ARGUMENT - if source and mask are different sizes</li> |
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494 * </ul> |
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495 * @exception DWTError <ul> |
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496 * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> |
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497 * </ul> |
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498 */ |
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499 public this(Device device, ImageData source, ImageData mask) { |
213 | 500 super(device); |
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501 if (source is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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502 if (mask is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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503 if (source.width !is mask.width || source.height !is mask.height) { |
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504 DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
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505 } |
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506 mask = ImageData.convertMask(mask); |
213 | 507 init_(this.device, this, source, mask); |
508 init_(); | |
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509 } |
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510 |
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511 /** |
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512 * Constructs an instance of this class by loading its representation |
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513 * from the specified input stream. Throws an error if an error |
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514 * occurs while loading the image, or if the result is an image |
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515 * of an unsupported type. Application code is still responsible |
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516 * for closing the input stream. |
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517 * <p> |
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518 * This constructor is provided for convenience when loading a single |
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519 * image only. If the stream contains multiple images, only the first |
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520 * one will be loaded. To load multiple images, use |
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521 * <code>ImageLoader.load()</code>. |
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522 * </p><p> |
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523 * This constructor may be used to load a resource as follows: |
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524 * </p> |
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525 * <pre> |
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526 * static Image loadImage (Display display, Class clazz, String string) { |
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527 * InputStream stream = clazz.getResourceAsStream (string); |
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528 * if (stream is null) return null; |
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529 * Image image = null; |
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530 * try { |
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531 * image = new Image (display, stream); |
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532 * } catch (DWTException ex) { |
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533 * } finally { |
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534 * try { |
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535 * stream.close (); |
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536 * } catch (IOException ex) {} |
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537 * } |
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538 * return image; |
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539 * } |
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540 * </pre> |
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541 * |
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542 * @param device the device on which to create the image |
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543 * @param stream the input stream to load the image from |
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544 * |
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545 * @exception IllegalArgumentException <ul> |
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546 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> |
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547 * <li>ERROR_NULL_ARGUMENT - if the stream is null</li> |
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548 * </ul> |
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549 * @exception DWTException <ul> |
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550 * <li>ERROR_IO - if an IO error occurs while reading from the stream</li> |
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551 * <li>ERROR_INVALID_IMAGE - if the image stream contains invalid data </li> |
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552 * <li>ERROR_UNSUPPORTED_DEPTH - if the image stream describes an image with an unsupported depth</li> |
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553 * <li>ERROR_UNSUPPORTED_FORMAT - if the image stream contains an unrecognized format</li> |
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554 * </ul> |
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555 * @exception DWTError <ul> |
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556 * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> |
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557 * </ul> |
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558 */ |
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559 public this (Device device, InputStream stream) { |
213 | 560 super(device); |
561 init_(new ImageData(stream)); | |
562 init_(); | |
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563 } |
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564 |
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565 /** |
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566 * Constructs an instance of this class by loading its representation |
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567 * from the file with the specified name. Throws an error if an error |
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568 * occurs while loading the image, or if the result is an image |
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569 * of an unsupported type. |
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570 * <p> |
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571 * This constructor is provided for convenience when loading |
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572 * a single image only. If the specified file contains |
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573 * multiple images, only the first one will be used. |
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574 * |
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575 * @param device the device on which to create the image |
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576 * @param filename the name of the file to load the image from |
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577 * |
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578 * @exception IllegalArgumentException <ul> |
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579 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> |
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580 * <li>ERROR_NULL_ARGUMENT - if the file name is null</li> |
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581 * </ul> |
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582 * @exception DWTException <ul> |
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583 * <li>ERROR_IO - if an IO error occurs while reading from the file</li> |
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584 * <li>ERROR_INVALID_IMAGE - if the image file contains invalid data </li> |
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585 * <li>ERROR_UNSUPPORTED_DEPTH - if the image file describes an image with an unsupported depth</li> |
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586 * <li>ERROR_UNSUPPORTED_FORMAT - if the image file contains an unrecognized format</li> |
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587 * </ul> |
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588 * @exception DWTError <ul> |
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589 * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> |
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590 * </ul> |
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591 */ |
212
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592 public this (Device device, String filename) { |
213 | 593 super(device); |
594 device = this.device; | |
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595 if (filename is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
213 | 596 bool gdip = true; |
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597 try { |
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598 device.checkGDIP(); |
213 | 599 } catch (DWTException e) { |
600 gdip = false; | |
601 } | |
602 /* | |
603 * Bug in GDI+. For some reason, Bitmap.LockBits() segment faults | |
604 * when loading GIF files in 64-bit Windows. The fix is to not use | |
605 * GDI+ image loading in this case. | |
606 */ | |
607 if (gdip && (void*).sizeof is 8 && filename.toLowerCase().endsWith(".gif")) gdip = false; | |
608 if (gdip) { | |
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609 int length = filename.length; |
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610 char[] chars = new char[length+1]; |
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611 filename.getChars(0, length, chars, 0); |
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612 auto bitmap = Gdip.Bitmap_new( .StrToWCHARz( filename ), false); |
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613 if (bitmap !is null) { |
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614 int error = DWT.ERROR_NO_HANDLES; |
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615 int status = Gdip.Image_GetLastStatus(cast(Gdip.Image)bitmap); |
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616 if (status is 0) { |
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617 if (filename.toLowerCase().endsWith(".ico")) { |
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618 this.type = DWT.ICON; |
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619 HICON hicon; |
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620 Gdip.Bitmap_GetHICON(bitmap, hicon); |
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621 this.handle = hicon; |
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622 } else { |
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623 this.type = DWT.BITMAP; |
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624 int width = Gdip.Image_GetWidth(cast(Gdip.Image)bitmap); |
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625 int height = Gdip.Image_GetHeight(cast(Gdip.Image)bitmap); |
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626 int pixelFormat = Gdip.Image_GetPixelFormat(cast(Gdip.Image)bitmap); |
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627 switch (pixelFormat) { |
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628 case Gdip.PixelFormat16bppRGB555: |
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629 case Gdip.PixelFormat16bppRGB565: |
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630 this.handle = createDIB(width, height, 16); |
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631 break; |
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632 case Gdip.PixelFormat24bppRGB: |
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633 this.handle = createDIB(width, height, 24); |
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634 break; |
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635 case Gdip.PixelFormat32bppRGB: |
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636 // These will loose either precision or transparency |
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637 case Gdip.PixelFormat16bppGrayScale: |
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638 case Gdip.PixelFormat48bppRGB: |
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639 case Gdip.PixelFormat32bppPARGB: |
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640 case Gdip.PixelFormat64bppARGB: |
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641 case Gdip.PixelFormat64bppPARGB: |
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642 this.handle = createDIB(width, height, 32); |
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643 break; |
81 | 644 default: |
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645 } |
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646 if (this.handle !is null) { |
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647 /* |
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648 * This performs better than getting the bits with Bitmap.LockBits(), |
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649 * but it cannot be used when there is transparency. |
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650 */ |
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651 auto hDC = device.internal_new_GC(null); |
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652 auto srcHDC = OS.CreateCompatibleDC(hDC); |
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653 auto oldSrcBitmap = OS.SelectObject(srcHDC, this.handle); |
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654 auto graphics = Gdip.Graphics_new(srcHDC); |
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655 if (graphics !is null) { |
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656 Gdip.Rect rect; |
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657 rect.Width = width; |
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658 rect.Height = height; |
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659 status = Gdip.Graphics_DrawImage(graphics, cast(Gdip.Image)bitmap, rect, 0, 0, width, height, Gdip.UnitPixel, null, null, null); |
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660 if (status !is 0) { |
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661 error = DWT.ERROR_INVALID_IMAGE; |
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662 OS.DeleteObject(handle); |
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663 this.handle = null; |
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664 } |
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665 Gdip.Graphics_delete(graphics); |
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666 } |
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667 OS.SelectObject(srcHDC, oldSrcBitmap); |
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668 OS.DeleteDC(srcHDC); |
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669 device.internal_dispose_GC(hDC, null); |
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670 } else { |
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671 auto lockedBitmapData = Gdip.BitmapData_new(); |
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672 if (lockedBitmapData !is null) { |
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673 Gdip.Bitmap_LockBits(bitmap, null, 0, pixelFormat, lockedBitmapData); |
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674 //BitmapData bitmapData = new BitmapData(); |
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675 //Gdip.MoveMemory(bitmapData, lockedBitmapData); |
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676 auto stride = lockedBitmapData.Stride; |
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677 auto pixels = lockedBitmapData.Scan0; |
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678 int depth = 0, scanlinePad = 4, transparentPixel = -1; |
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679 switch (lockedBitmapData.PixelFormat) { |
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680 case Gdip.PixelFormat1bppIndexed: depth = 1; break; |
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681 case Gdip.PixelFormat4bppIndexed: depth = 4; break; |
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682 case Gdip.PixelFormat8bppIndexed: depth = 8; break; |
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683 case Gdip.PixelFormat16bppARGB1555: |
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684 case Gdip.PixelFormat16bppRGB555: |
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685 case Gdip.PixelFormat16bppRGB565: depth = 16; break; |
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686 case Gdip.PixelFormat24bppRGB: depth = 24; break; |
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687 case Gdip.PixelFormat32bppRGB: |
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688 case Gdip.PixelFormat32bppARGB: depth = 32; break; |
81 | 689 default: |
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690 } |
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691 if (depth !is 0) { |
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692 PaletteData paletteData = null; |
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693 switch (lockedBitmapData.PixelFormat) { |
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694 case Gdip.PixelFormat1bppIndexed: |
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695 case Gdip.PixelFormat4bppIndexed: |
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696 case Gdip.PixelFormat8bppIndexed: |
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697 int paletteSize = Gdip.Image_GetPaletteSize(cast(Gdip.Image)bitmap); |
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698 auto hHeap = OS.GetProcessHeap(); |
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699 auto palette = cast(Gdip.ColorPalette*) OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, paletteSize); |
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700 if (palette is null) DWT.error(DWT.ERROR_NO_HANDLES); |
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701 Gdip.Image_GetPalette(cast(Gdip.Image)bitmap, palette, paletteSize); |
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702 Gdip.ColorPalette* colorPalette = palette; |
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703 //Gdip.MoveMemory(colorPalette, palette, ColorPalette.sizeof); |
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704 //int[] entries = new int[colorPalette.Count]; |
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705 //OS.MoveMemory(entries, palette + 8, entries.length * 4); |
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706 |
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707 //PORTING_COMMENT: moved down |
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708 //OS.HeapFree(hHeap, 0, palette); |
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709 RGB[] rgbs = new RGB[colorPalette.Count]; |
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710 paletteData = new PaletteData(rgbs); |
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711 for (int i = 0; i < colorPalette.Count; i++) { |
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712 if (((palette.Entries[i] >> 24) & 0xFF) is 0 && (colorPalette.Flags & Gdip.PaletteFlagsHasAlpha) !is 0) { |
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713 transparentPixel = i; |
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714 } |
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715 rgbs[i] = new RGB(((palette.Entries[i] & 0xFF0000) >> 16), ((palette.Entries[i] & 0xFF00) >> 8), ((palette.Entries[i] & 0xFF) >> 0)); |
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716 } |
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717 OS.HeapFree(hHeap, 0, palette); |
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718 break; |
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719 case Gdip.PixelFormat16bppARGB1555: |
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720 case Gdip.PixelFormat16bppRGB555: paletteData = new PaletteData(0x7C00, 0x3E0, 0x1F); break; |
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721 case Gdip.PixelFormat16bppRGB565: paletteData = new PaletteData(0xF800, 0x7E0, 0x1F); break; |
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722 case Gdip.PixelFormat24bppRGB: paletteData = new PaletteData(0xFF, 0xFF00, 0xFF0000); break; |
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723 case Gdip.PixelFormat32bppRGB: |
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724 case Gdip.PixelFormat32bppARGB: paletteData = new PaletteData(0xFF00, 0xFF0000, 0xFF000000); break; |
81 | 725 default: |
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726 } |
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727 byte[] data = new byte[ stride * height ], alphaData = null; |
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728 OS.MoveMemory(data.ptr, pixels, data.length); |
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729 switch (lockedBitmapData.PixelFormat) { |
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730 case Gdip.PixelFormat16bppARGB1555: |
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731 alphaData = new byte[width * height]; |
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732 for (int i = 1, j = 0; i < data.length; i += 2, j++) { |
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733 alphaData[j] = cast(byte)((data[i] & 0x80) !is 0 ? 255 : 0); |
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734 } |
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735 break; |
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736 case Gdip.PixelFormat32bppARGB: |
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737 alphaData = new byte[width * height]; |
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738 for (int i = 3, j = 0; i < data.length; i += 4, j++) { |
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739 alphaData[j] = data[i]; |
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740 } |
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741 break; |
81 | 742 default: |
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743 } |
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744 Gdip.Bitmap_UnlockBits(bitmap, lockedBitmapData); |
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745 Gdip.BitmapData_delete(lockedBitmapData); |
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746 ImageData img = new ImageData(width, height, depth, paletteData, scanlinePad, data); |
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747 img.transparentPixel = transparentPixel; |
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748 img.alphaData = alphaData; |
213 | 749 init_(img); |
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750 } |
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751 } |
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752 } |
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753 } |
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754 } |
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755 Gdip.Bitmap_delete(bitmap); |
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756 if (status is 0) { |
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757 if (this.handle is null) DWT.error(error); |
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758 return; |
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759 } |
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760 } |
213 | 761 } |
762 init_(new ImageData(filename)); | |
763 init_(); | |
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764 } |
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765 |
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766 /** |
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767 * Create a DIB from a DDB without using GetDIBits. Note that |
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768 * the DDB should not be selected into a HDC. |
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769 */ |
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770 HBITMAP createDIBFromDDB(HDC hDC, HBITMAP hBitmap, int width, int height) { |
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771 |
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772 /* Determine the DDB depth */ |
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773 int bits = OS.GetDeviceCaps (hDC, OS.BITSPIXEL); |
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774 int planes = OS.GetDeviceCaps (hDC, OS.PLANES); |
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775 int depth = bits * planes; |
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776 |
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777 /* Determine the DIB palette */ |
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778 bool isDirect = depth > 8; |
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779 RGB[] rgbs = null; |
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780 if (!isDirect) { |
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781 int numColors = 1 << depth; |
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782 byte[] logPalette = new byte[4 * numColors]; |
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783 OS.GetPaletteEntries(device.hPalette, 0, numColors, cast(PALETTEENTRY*)logPalette.ptr); |
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784 rgbs = new RGB[numColors]; |
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785 for (int i = 0; i < numColors; i++) { |
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786 rgbs[i] = new RGB(logPalette[i] & 0xFF, logPalette[i + 1] & 0xFF, logPalette[i + 2] & 0xFF); |
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787 } |
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788 } |
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789 |
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790 bool useBitfields = OS.IsWinCE && (depth is 16 || depth is 32); |
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791 BITMAPINFOHEADER bmiHeader; |
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792 bmiHeader.biSize = BITMAPINFOHEADER.sizeof; |
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793 bmiHeader.biWidth = width; |
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794 bmiHeader.biHeight = -height; |
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795 bmiHeader.biPlanes = 1; |
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796 bmiHeader.biBitCount = cast(short)depth; |
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797 if (useBitfields) bmiHeader.biCompression = OS.BI_BITFIELDS; |
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798 else bmiHeader.biCompression = OS.BI_RGB; |
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799 byte[] bmi; |
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800 if (isDirect) bmi = new byte[BITMAPINFOHEADER.sizeof + (useBitfields ? 12 : 0)]; |
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801 else bmi = new byte[BITMAPINFOHEADER.sizeof + rgbs.length * 4]; |
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802 OS.MoveMemory(bmi.ptr, &bmiHeader, BITMAPINFOHEADER.sizeof); |
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803 |
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804 /* Set the rgb colors into the bitmap info */ |
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805 int offset = BITMAPINFOHEADER.sizeof; |
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806 if (isDirect) { |
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807 if (useBitfields) { |
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808 int redMask = 0; |
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809 int greenMask = 0; |
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810 int blueMask = 0; |
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811 switch (depth) { |
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812 case 16: |
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813 redMask = 0x7C00; |
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814 greenMask = 0x3E0; |
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815 blueMask = 0x1F; |
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816 /* little endian */ |
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817 bmi[offset] = cast(byte)((redMask & 0xFF) >> 0); |
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818 bmi[offset + 1] = cast(byte)((redMask & 0xFF00) >> 8); |
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819 bmi[offset + 2] = cast(byte)((redMask & 0xFF0000) >> 16); |
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820 bmi[offset + 3] = cast(byte)((redMask & 0xFF000000) >> 24); |
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821 bmi[offset + 4] = cast(byte)((greenMask & 0xFF) >> 0); |
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822 bmi[offset + 5] = cast(byte)((greenMask & 0xFF00) >> 8); |
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823 bmi[offset + 6] = cast(byte)((greenMask & 0xFF0000) >> 16); |
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824 bmi[offset + 7] = cast(byte)((greenMask & 0xFF000000) >> 24); |
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825 bmi[offset + 8] = cast(byte)((blueMask & 0xFF) >> 0); |
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826 bmi[offset + 9] = cast(byte)((blueMask & 0xFF00) >> 8); |
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827 bmi[offset + 10] = cast(byte)((blueMask & 0xFF0000) >> 16); |
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828 bmi[offset + 11] = cast(byte)((blueMask & 0xFF000000) >> 24); |
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829 break; |
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830 case 32: |
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831 redMask = 0xFF00; |
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832 greenMask = 0xFF0000; |
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833 blueMask = 0xFF000000; |
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834 /* big endian */ |
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835 bmi[offset] = cast(byte)((redMask & 0xFF000000) >> 24); |
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836 bmi[offset + 1] = cast(byte)((redMask & 0xFF0000) >> 16); |
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837 bmi[offset + 2] = cast(byte)((redMask & 0xFF00) >> 8); |
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838 bmi[offset + 3] = cast(byte)((redMask & 0xFF) >> 0); |
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839 bmi[offset + 4] = cast(byte)((greenMask & 0xFF000000) >> 24); |
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840 bmi[offset + 5] = cast(byte)((greenMask & 0xFF0000) >> 16); |
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841 bmi[offset + 6] = cast(byte)((greenMask & 0xFF00) >> 8); |
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842 bmi[offset + 7] = cast(byte)((greenMask & 0xFF) >> 0); |
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843 bmi[offset + 8] = cast(byte)((blueMask & 0xFF000000) >> 24); |
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844 bmi[offset + 9] = cast(byte)((blueMask & 0xFF0000) >> 16); |
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845 bmi[offset + 10] = cast(byte)((blueMask & 0xFF00) >> 8); |
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846 bmi[offset + 11] = cast(byte)((blueMask & 0xFF) >> 0); |
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847 break; |
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848 default: |
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849 DWT.error(DWT.ERROR_UNSUPPORTED_DEPTH); |
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850 } |
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851 } |
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852 } else { |
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853 for (int j = 0; j < rgbs.length; j++) { |
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854 bmi[offset] = cast(byte)rgbs[j].blue; |
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855 bmi[offset + 1] = cast(byte)rgbs[j].green; |
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856 bmi[offset + 2] = cast(byte)rgbs[j].red; |
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857 bmi[offset + 3] = 0; |
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858 offset += 4; |
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859 } |
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860 } |
213 | 861 void* pBits; |
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862 HBITMAP hDib = OS.CreateDIBSection(null, cast(BITMAPINFO*)bmi.ptr, OS.DIB_RGB_COLORS, &pBits, null, 0); |
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863 if (hDib is null) DWT.error(DWT.ERROR_NO_HANDLES); |
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864 |
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865 /* Bitblt DDB into DIB */ |
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866 auto hdcSource = OS.CreateCompatibleDC(hDC); |
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867 auto hdcDest = OS.CreateCompatibleDC(hDC); |
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868 auto hOldSrc = OS.SelectObject(hdcSource, hBitmap); |
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869 auto hOldDest = OS.SelectObject(hdcDest, hDib); |
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870 OS.BitBlt(hdcDest, 0, 0, width, height, hdcSource, 0, 0, OS.SRCCOPY); |
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871 OS.SelectObject(hdcSource, hOldSrc); |
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872 OS.SelectObject(hdcDest, hOldDest); |
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873 OS.DeleteDC(hdcSource); |
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874 OS.DeleteDC(hdcDest); |
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875 |
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876 return hDib; |
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877 } |
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878 |
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879 // FIXME: Potential crash site in D: createGdipImage casts pointers to int before |
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880 // returning them in an int[]. Since the D GC does not and cannot scan int's for |
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881 // pointers, there is potential that the pointer's object could be collected while still |
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882 // active, even though it might be unlikely given the short span of time that the |
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883 // function has them stored in the int array. |
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884 |
213 | 885 int /*long*/ [] createGdipImage() { |
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886 switch (type) { |
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887 case DWT.BITMAP: { |
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888 if (alpha !is -1 || alphaData !is null || transparentPixel !is -1) { |
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889 BITMAP bm; |
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890 OS.GetObject(handle, BITMAP.sizeof, &bm); |
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891 int imgWidth = bm.bmWidth; |
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892 int imgHeight = bm.bmHeight; |
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893 auto hDC = device.internal_new_GC(null); |
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894 auto srcHdc = OS.CreateCompatibleDC(hDC); |
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895 auto oldSrcBitmap = OS.SelectObject(srcHdc, handle); |
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896 auto memHdc = OS.CreateCompatibleDC(hDC); |
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897 auto memDib = createDIB(imgWidth, imgHeight, 32); |
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898 if (memDib is null) DWT.error(DWT.ERROR_NO_HANDLES); |
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899 auto oldMemBitmap = OS.SelectObject(memHdc, memDib); |
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900 BITMAP dibBM; |
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901 OS.GetObject(memDib, BITMAP.sizeof, &dibBM); |
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902 int sizeInBytes = dibBM.bmWidthBytes * dibBM.bmHeight; |
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903 OS.BitBlt(memHdc, 0, 0, imgWidth, imgHeight, srcHdc, 0, 0, OS.SRCCOPY); |
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904 ubyte red = 0, green = 0, blue = 0; |
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905 if (transparentPixel !is -1) { |
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906 if (bm.bmBitsPixel <= 8) { |
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907 ubyte[] color = new ubyte[4]; |
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908 OS.GetDIBColorTable(srcHdc, transparentPixel, 1, cast(RGBQUAD*)color.ptr); |
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909 blue = color[0]; |
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910 green = color[1]; |
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911 red = color[2]; |
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912 } else { |
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913 switch (bm.bmBitsPixel) { |
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914 case 16: |
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915 int blueMask = 0x1F; |
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916 int blueShift = ImageData.getChannelShift(blueMask); |
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917 byte[] blues = ImageData.ANY_TO_EIGHT[ImageData.getChannelWidth(blueMask, blueShift)]; |
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918 blue = blues[(transparentPixel & blueMask) >> blueShift]; |
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919 int greenMask = 0x3E0; |
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920 int greenShift = ImageData.getChannelShift(greenMask); |
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921 byte[] greens = ImageData.ANY_TO_EIGHT[ImageData.getChannelWidth(greenMask, greenShift)]; |
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922 green = greens[(transparentPixel & greenMask) >> greenShift]; |
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923 int redMask = 0x7C00; |
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924 int redShift = ImageData.getChannelShift(redMask); |
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925 byte[] reds = ImageData.ANY_TO_EIGHT[ImageData.getChannelWidth(redMask, redShift)]; |
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926 red = reds[(transparentPixel & redMask) >> redShift]; |
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927 break; |
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928 case 24: |
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929 blue = cast(ubyte)((transparentPixel & 0xFF0000) >> 16); |
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930 green = cast(ubyte)((transparentPixel & 0xFF00) >> 8); |
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931 red = cast(ubyte)(transparentPixel & 0xFF); |
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932 break; |
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933 case 32: |
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934 blue = cast(ubyte)((transparentPixel & 0xFF000000) >>> 24); |
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935 green = cast(ubyte)((transparentPixel & 0xFF0000) >> 16); |
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936 red = cast(ubyte)((transparentPixel & 0xFF00) >> 8); |
22
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937 break; |
81 | 938 default: |
22
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939 } |
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940 } |
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941 } |
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942 OS.SelectObject(srcHdc, oldSrcBitmap); |
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943 OS.SelectObject(memHdc, oldMemBitmap); |
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944 OS.DeleteObject(srcHdc); |
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945 OS.DeleteObject(memHdc); |
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946 ubyte[] srcData = new ubyte[sizeInBytes]; |
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947 OS.MoveMemory(srcData.ptr, dibBM.bmBits, sizeInBytes); |
22
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948 OS.DeleteObject(memDib); |
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949 device.internal_dispose_GC(hDC, null); |
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950 if (alpha !is -1) { |
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951 for (int y = 0, dp = 0; y < imgHeight; ++y) { |
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952 for (int x = 0; x < imgWidth; ++x) { |
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953 srcData[dp + 3] = cast(ubyte)alpha; |
22
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954 dp += 4; |
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955 } |
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956 } |
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957 } else if (alphaData !is null) { |
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958 for (int y = 0, dp = 0, ap = 0; y < imgHeight; ++y) { |
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959 for (int x = 0; x < imgWidth; ++x) { |
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960 srcData[dp + 3] = alphaData[ap++]; |
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961 dp += 4; |
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962 } |
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963 } |
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964 } else if (transparentPixel !is -1) { |
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965 for (int y = 0, dp = 0; y < imgHeight; ++y) { |
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966 for (int x = 0; x < imgWidth; ++x) { |
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967 if (srcData[dp] is blue && srcData[dp + 1] is green && srcData[dp + 2] is red) { |
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968 srcData[dp + 3] = cast(ubyte)0; |
22
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969 } else { |
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970 srcData[dp + 3] = cast(ubyte)0xFF; |
22
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971 } |
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972 dp += 4; |
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973 } |
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974 } |
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975 } |
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976 auto hHeap = OS.GetProcessHeap(); |
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977 auto pixels = cast(ubyte*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, srcData.length); |
22
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978 if (pixels is null) DWT.error(DWT.ERROR_NO_HANDLES); |
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979 OS.MoveMemory(pixels, srcData.ptr, sizeInBytes); |
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980 return [ cast(int)(Gdip.Bitmap_new(imgWidth, imgHeight, dibBM.bmWidthBytes, Gdip.PixelFormat32bppARGB, pixels)), cast(int) pixels]; |
22
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981 } |
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982 return [cast(int)Gdip.Bitmap_new(handle, null), 0]; |
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983 } |
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984 case DWT.ICON: { |
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985 /* |
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986 * Bug in GDI+. Creating a new GDI+ Bitmap from a HICON segment faults |
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987 * when the icon width is bigger than the icon height. The fix is to |
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988 * detect this and create a PixelFormat32bppARGB image instead. |
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989 */ |
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990 ICONINFO iconInfo; |
117 | 991 static if (OS.IsWinCE) { |
22
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992 GetIconInfo(this, &iconInfo); |
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993 } else { |
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994 OS.GetIconInfo(handle, &iconInfo); |
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995 } |
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996 auto hBitmap = iconInfo.hbmColor; |
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997 if (hBitmap is null) hBitmap = iconInfo.hbmMask; |
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998 BITMAP bm; |
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999 OS.GetObject(hBitmap, BITMAP.sizeof, &bm); |
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1000 int imgWidth = bm.bmWidth; |
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1001 int imgHeight = hBitmap is iconInfo.hbmMask ? bm.bmHeight / 2 : bm.bmHeight; |
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1002 Gdip.Bitmap img; |
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1003 ubyte* pixels; |
213 | 1004 /* |
1005 * Bug in GDI+. Bitmap_new() segments fault if the image width | |
1006 * is greater than the image height. | |
1007 * | |
1008 * Note that it also fails to generated an appropriate alpha | |
1009 * channel when the icon depth is 32. | |
1010 */ | |
1011 if (imgWidth > imgHeight || bm.bmBitsPixel is 32) { | |
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1012 auto hDC = device.internal_new_GC(null); |
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1013 auto srcHdc = OS.CreateCompatibleDC(hDC); |
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1014 auto oldSrcBitmap = OS.SelectObject(srcHdc, hBitmap); |
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1015 auto memHdc = OS.CreateCompatibleDC(hDC); |
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1016 auto memDib = createDIB(imgWidth, imgHeight, 32); |
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1017 if (memDib is null) DWT.error(DWT.ERROR_NO_HANDLES); |
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1018 auto oldMemBitmap = OS.SelectObject(memHdc, memDib); |
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1019 BITMAP dibBM; |
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1020 OS.GetObject(memDib, BITMAP.sizeof, &dibBM); |
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1021 OS.BitBlt(memHdc, 0, 0, imgWidth, imgHeight, srcHdc, 0, hBitmap is iconInfo.hbmMask ? imgHeight : 0, OS.SRCCOPY); |
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1022 OS.SelectObject(memHdc, oldMemBitmap); |
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1023 OS.DeleteObject(memHdc); |
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1024 ubyte[] srcData = new ubyte[dibBM.bmWidthBytes * dibBM.bmHeight]; |
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1025 OS.MoveMemory(srcData.ptr, dibBM.bmBits, srcData.length); |
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1026 OS.DeleteObject(memDib); |
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1027 OS.SelectObject(srcHdc, iconInfo.hbmMask); |
213 | 1028 for (int y = 0, dp = 3; y < imgHeight; ++y) { |
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1029 for (int x = 0; x < imgWidth; ++x) { |
213 | 1030 if (srcData[dp] is 0) { |
1031 if (OS.GetPixel(srcHdc, x, y) !is 0) { | |
1032 srcData[dp] = cast(ubyte)0; | |
1033 } else { | |
1034 srcData[dp] = cast(ubyte)0xFF; | |
1035 } | |
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1036 } |
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1037 dp += 4; |
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1038 } |
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1039 } |
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1040 OS.SelectObject(srcHdc, oldSrcBitmap); |
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1041 OS.DeleteObject(srcHdc); |
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1042 device.internal_dispose_GC(hDC, null); |
23 | 1043 auto hHeap = OS.GetProcessHeap(); |
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1044 pixels = cast(ubyte*) OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, srcData.length); |
23 | 1045 if (pixels is null) DWT.error(DWT.ERROR_NO_HANDLES); |
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1046 OS.MoveMemory(pixels, srcData.ptr, srcData.length); |
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1047 img = Gdip.Bitmap_new(imgWidth, imgHeight, dibBM.bmWidthBytes, Gdip.PixelFormat32bppARGB, pixels); |
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1048 } else { |
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1049 img = Gdip.Bitmap_new(handle); |
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1050 } |
23 | 1051 if (iconInfo.hbmColor !is null) OS.DeleteObject(iconInfo.hbmColor); |
1052 if (iconInfo.hbmMask !is null) OS.DeleteObject(iconInfo.hbmMask); | |
1053 return [ cast(int)img, cast(int) pixels ]; | |
22
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1054 } |
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1055 default: DWT.error(DWT.ERROR_INVALID_IMAGE); |
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1056 } |
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1057 return null; |
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1058 } |
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1059 |
213 | 1060 void destroy () { |
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1061 if (memGC !is null) memGC.dispose(); |
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1062 if (type is DWT.ICON) { |
117 | 1063 static if (OS.IsWinCE) data = null; |
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1064 OS.DestroyIcon (handle); |
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1065 } else { |
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1066 OS.DeleteObject (handle); |
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1067 } |
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1068 handle = null; |
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1069 memGC = null; |
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1070 } |
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1071 |
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1072 /** |
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1073 * Compares the argument to the receiver, and returns true |
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1074 * if they represent the <em>same</em> object using a class |
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1075 * specific comparison. |
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1076 * |
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1077 * @param object the object to compare with this object |
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1078 * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise |
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1079 * |
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1080 * @see #hashCode |
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1081 */ |
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1082 override public int opEquals (Object object) { |
22
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1083 if (object is this) return true; |
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1084 if (!(cast(Image)object)) return false; |
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1085 Image image = cast(Image) object; |
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1086 return device is image.device && handle is image.handle; |
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1087 } |
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1088 |
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1089 /** |
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1090 * Returns the color to which to map the transparent pixel, or null if |
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1091 * the receiver has no transparent pixel. |
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1092 * <p> |
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1093 * There are certain uses of Images that do not support transparency |
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1094 * (for example, setting an image into a button or label). In these cases, |
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1095 * it may be desired to simulate transparency by using the background |
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1096 * color of the widget to paint the transparent pixels of the image. |
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1097 * Use this method to check which color will be used in these cases |
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1098 * in place of transparency. This value may be set with setBackground(). |
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1099 * <p> |
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1100 * |
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1101 * @return the background color of the image, or null if there is no transparency in the image |
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1102 * |
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1103 * @exception DWTException <ul> |
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1104 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
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1105 * </ul> |
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1106 */ |
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1107 public Color getBackground() { |
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1108 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
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1109 if (transparentPixel is -1) return null; |
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1110 |
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1111 /* Get the HDC for the device */ |
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1112 auto hDC = device.internal_new_GC(null); |
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1113 |
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1114 /* Compute the background color */ |
23 | 1115 BITMAP bm; |
1116 OS.GetObject(handle, BITMAP.sizeof, &bm); | |
22
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1117 auto hdcMem = OS.CreateCompatibleDC(hDC); |
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1118 auto hOldObject = OS.SelectObject(hdcMem, handle); |
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1119 int red = 0, green = 0, blue = 0; |
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1120 if (bm.bmBitsPixel <= 8) { |
117 | 1121 static if (OS.IsWinCE) { |
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1122 byte[1] pBits; |
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1123 OS.MoveMemory(pBits.ptr, bm.bmBits, 1); |
22
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1124 byte oldValue = pBits[0]; |
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1125 int mask = (0xFF << (8 - bm.bmBitsPixel)) & 0x00FF; |
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1126 pBits[0] = cast(byte)((transparentPixel << (8 - bm.bmBitsPixel)) | (pBits[0] & ~mask)); |
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1127 OS.MoveMemory(bm.bmBits, pBits.ptr, 1); |
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1128 int color = OS.GetPixel(hdcMem, 0, 0); |
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1129 pBits[0] = oldValue; |
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1130 OS.MoveMemory(bm.bmBits, pBits.ptr, 1); |
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1131 blue = (color & 0xFF0000) >> 16; |
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1132 green = (color & 0xFF00) >> 8; |
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1133 red = color & 0xFF; |
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1134 } else { |
23 | 1135 RGBQUAD color; |
1136 OS.GetDIBColorTable(hdcMem, transparentPixel, 1, &color); | |
1137 blue = color.rgbBlue; | |
1138 green = color.rgbGreen; | |
1139 red = color.rgbRed; | |
22
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1140 } |
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1141 } else { |
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1142 switch (bm.bmBitsPixel) { |
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1143 case 16: |
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1144 blue = (transparentPixel & 0x1F) << 3; |
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1145 green = (transparentPixel & 0x3E0) >> 2; |
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1146 red = (transparentPixel & 0x7C00) >> 7; |
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1147 break; |
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1148 case 24: |
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1149 blue = (transparentPixel & 0xFF0000) >> 16; |
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1150 green = (transparentPixel & 0xFF00) >> 8; |
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1151 red = transparentPixel & 0xFF; |
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1152 break; |
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1153 case 32: |
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1154 blue = (transparentPixel & 0xFF000000) >>> 24; |
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1155 green = (transparentPixel & 0xFF0000) >> 16; |
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1156 red = (transparentPixel & 0xFF00) >> 8; |
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1157 break; |
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1158 default: |
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1159 return null; |
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1160 } |
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1161 } |
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1162 OS.SelectObject(hdcMem, hOldObject); |
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1163 OS.DeleteDC(hdcMem); |
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1164 |
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1165 /* Release the HDC for the device */ |
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1166 device.internal_dispose_GC(hDC, null); |
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1167 return Color.win32_new(device, (blue << 16) | (green << 8) | red); |
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1168 } |
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1169 |
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1170 /** |
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1171 * Returns the bounds of the receiver. The rectangle will always |
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1172 * have x and y values of 0, and the width and height of the |
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1173 * image. |
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1174 * |
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1175 * @return a rectangle specifying the image's bounds |
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1176 * |
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1177 * @exception DWTException <ul> |
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1178 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
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1179 * <li>ERROR_INVALID_IMAGE - if the image is not a bitmap or an icon</li> |
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1180 * </ul> |
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1181 */ |
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1182 public Rectangle getBounds() { |
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1183 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
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1184 if (width !is -1 && height !is -1) { |
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1185 return new Rectangle(0, 0, width, height); |
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1186 } |
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1187 switch (type) { |
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1188 case DWT.BITMAP: |
23 | 1189 BITMAP bm; |
1190 OS.GetObject(handle, BITMAP.sizeof, &bm); | |
22
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1191 return new Rectangle(0, 0, width = bm.bmWidth, height = bm.bmHeight); |
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1192 case DWT.ICON: |
117 | 1193 static if (OS.IsWinCE) { |
22
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1194 return new Rectangle(0, 0, width = data.width, height = data.height); |
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1195 } else { |
23 | 1196 ICONINFO info; |
1197 OS.GetIconInfo(handle, &info); | |
1198 auto hBitmap = info.hbmColor; | |
1199 if (hBitmap is null) hBitmap = info.hbmMask; | |
1200 BITMAP bm; | |
1201 OS.GetObject(hBitmap, BITMAP.sizeof, &bm); | |
22
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1202 if (hBitmap is info.hbmMask) bm.bmHeight /= 2; |
23 | 1203 if (info.hbmColor !is null) OS.DeleteObject(info.hbmColor); |
1204 if (info.hbmMask !is null) OS.DeleteObject(info.hbmMask); | |
22
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1205 return new Rectangle(0, 0, width = bm.bmWidth, height = bm.bmHeight); |
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1206 } |
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1207 default: |
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1208 DWT.error(DWT.ERROR_INVALID_IMAGE); |
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1209 return null; |
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1210 } |
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1211 } |
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1212 |
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1213 /** |
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1214 * Returns an <code>ImageData</code> based on the receiver |
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1215 * Modifications made to this <code>ImageData</code> will not |
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1216 * affect the Image. |
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1217 * |
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1218 * @return an <code>ImageData</code> containing the image's data and attributes |
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1219 * |
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1220 * @exception DWTException <ul> |
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1221 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
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1222 * <li>ERROR_INVALID_IMAGE - if the image is not a bitmap or an icon</li> |
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1223 * </ul> |
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1224 * |
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1225 * @see ImageData |
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1226 */ |
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1227 public ImageData getImageData() { |
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1228 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
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1229 BITMAP bm; |
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1230 int depth, width, height; |
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1231 switch (type) { |
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1232 case DWT.ICON: { |
117 | 1233 static if (OS.IsWinCE) return data; |
23 | 1234 ICONINFO info; |
117 | 1235 static if (OS.IsWinCE) DWT.error(DWT.ERROR_NOT_IMPLEMENTED); |
23 | 1236 OS.GetIconInfo(handle, &info); |
22
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1237 /* Get the basic BITMAP information */ |
23 | 1238 auto hBitmap = info.hbmColor; |
1239 if (hBitmap is null) hBitmap = info.hbmMask; | |
1240 OS.GetObject(hBitmap, BITMAP.sizeof, &bm); | |
22
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1241 depth = bm.bmPlanes * bm.bmBitsPixel; |
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1242 width = bm.bmWidth; |
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1243 if (hBitmap is info.hbmMask) bm.bmHeight /= 2; |
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1244 height = bm.bmHeight; |
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1245 int numColors = 0; |
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1246 if (depth <= 8) numColors = 1 << depth; |
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1247 /* Create the BITMAPINFO */ |
23 | 1248 BITMAPINFOHEADER bmiHeader; |
22
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1249 bmiHeader.biSize = BITMAPINFOHEADER.sizeof; |
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1250 bmiHeader.biWidth = width; |
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1251 bmiHeader.biHeight = -height; |
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1252 bmiHeader.biPlanes = 1; |
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1253 bmiHeader.biBitCount = cast(short)depth; |
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1254 bmiHeader.biCompression = OS.BI_RGB; |
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1255 byte[] bmi = new byte[BITMAPINFOHEADER.sizeof + numColors * 4]; |
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1256 OS.MoveMemory(bmi.ptr, &bmiHeader, BITMAPINFOHEADER.sizeof); |
22
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1257 |
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1258 /* Get the HDC for the device */ |
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1259 auto hDC = device.internal_new_GC(null); |
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1260 |
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1261 /* Create the DC and select the bitmap */ |
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1262 auto hBitmapDC = OS.CreateCompatibleDC(hDC); |
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1263 auto hOldBitmap = OS.SelectObject(hBitmapDC, hBitmap); |
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1264 /* Select the palette if necessary */ |
23 | 1265 HPALETTE oldPalette; |
22
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1266 if (depth <= 8) { |
23 | 1267 auto hPalette = device.hPalette; |
1268 if (hPalette !is null) { | |
22
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1269 oldPalette = OS.SelectPalette(hBitmapDC, hPalette, false); |
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1270 OS.RealizePalette(hBitmapDC); |
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1271 } |
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1272 } |
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1273 /* Find the size of the image and allocate data */ |
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1274 int imageSize; |
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1275 /* Call with null lpBits to get the image size */ |
117 | 1276 static if (OS.IsWinCE) DWT.error(DWT.ERROR_NOT_IMPLEMENTED); |
23 | 1277 OS.GetDIBits(hBitmapDC, hBitmap, 0, height, null, cast(BITMAPINFO*)bmi.ptr, OS.DIB_RGB_COLORS); |
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1278 OS.MoveMemory(&bmiHeader, bmi.ptr, BITMAPINFOHEADER.sizeof); |
22
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1279 imageSize = bmiHeader.biSizeImage; |
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1280 byte[] data = new byte[imageSize]; |
22
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1281 /* Get the bitmap data */ |
23 | 1282 auto hHeap = OS.GetProcessHeap(); |
1283 auto lpvBits = cast(byte*) OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, imageSize); | |
1284 if (lpvBits is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
117 | 1285 static if (OS.IsWinCE) DWT.error(DWT.ERROR_NOT_IMPLEMENTED); |
23 | 1286 OS.GetDIBits(hBitmapDC, hBitmap, 0, height, lpvBits, cast(BITMAPINFO*)bmi.ptr, OS.DIB_RGB_COLORS); |
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1287 OS.MoveMemory(data.ptr, lpvBits, imageSize); |
22
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1288 /* Calculate the palette */ |
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1289 PaletteData palette = null; |
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1290 if (depth <= 8) { |
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1291 RGB[] rgbs = new RGB[numColors]; |
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1292 int srcIndex = 40; |
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1293 for (int i = 0; i < numColors; i++) { |
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1294 rgbs[i] = new RGB(bmi[srcIndex + 2] & 0xFF, bmi[srcIndex + 1] & 0xFF, bmi[srcIndex] & 0xFF); |
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1295 srcIndex += 4; |
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1296 } |
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1297 palette = new PaletteData(rgbs); |
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1298 } else if (depth is 16) { |
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1299 palette = new PaletteData(0x7C00, 0x3E0, 0x1F); |
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1300 } else if (depth is 24) { |
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1301 palette = new PaletteData(0xFF, 0xFF00, 0xFF0000); |
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1302 } else if (depth is 32) { |
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1303 palette = new PaletteData(0xFF00, 0xFF0000, 0xFF000000); |
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1304 } else { |
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1305 DWT.error(DWT.ERROR_UNSUPPORTED_DEPTH); |
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1306 } |
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1307 |
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1308 /* Do the mask */ |
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1309 byte [] maskData = null; |
23 | 1310 if (info.hbmColor is null) { |
22
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1311 /* Do the bottom half of the mask */ |
117 | 1312 static if (OS.IsWinCE) DWT.error(DWT.ERROR_NOT_IMPLEMENTED); |
23 | 1313 OS.GetDIBits(hBitmapDC, hBitmap, height, height, lpvBits, cast(BITMAPINFO*)bmi.ptr, OS.DIB_RGB_COLORS); |
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1314 OS.MoveMemory(maskData.ptr, lpvBits, imageSize); |
22
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1315 } else { |
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1316 /* Do the entire mask */ |
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1317 /* Create the BITMAPINFO */ |
23 | 1318 bmiHeader = BITMAPINFOHEADER.init; |
22
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1319 bmiHeader.biSize = BITMAPINFOHEADER.sizeof; |
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1320 bmiHeader.biWidth = width; |
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1321 bmiHeader.biHeight = -height; |
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1322 bmiHeader.biPlanes = 1; |
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1323 bmiHeader.biBitCount = 1; |
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1324 bmiHeader.biCompression = OS.BI_RGB; |
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1325 bmi = new byte[BITMAPINFOHEADER.sizeof + 8]; |
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1326 OS.MoveMemory(bmi.ptr, &bmiHeader, BITMAPINFOHEADER.sizeof); |
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1327 |
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1328 /* First color black, second color white */ |
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1329 int offset = BITMAPINFOHEADER.sizeof; |
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1330 bmi[offset + 4] = bmi[offset + 5] = bmi[offset + 6] = cast(byte)0xFF; |
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1331 bmi[offset + 7] = 0; |
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1332 OS.SelectObject(hBitmapDC, info.hbmMask); |
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1333 /* Call with null lpBits to get the image size */ |
117 | 1334 static if (OS.IsWinCE) DWT.error(DWT.ERROR_NOT_IMPLEMENTED); |
23 | 1335 OS.GetDIBits(hBitmapDC, info.hbmMask, 0, height, null, cast(BITMAPINFO*)bmi.ptr, OS.DIB_RGB_COLORS); |
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1336 OS.MoveMemory(&bmiHeader, bmi.ptr, BITMAPINFOHEADER.sizeof); |
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1337 imageSize = bmiHeader.biSizeImage; |
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1338 maskData = new byte[imageSize]; |
23 | 1339 auto lpvMaskBits = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, imageSize); |
1340 if (lpvMaskBits is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
117 | 1341 static if (OS.IsWinCE) DWT.error(DWT.ERROR_NOT_IMPLEMENTED); |
23 | 1342 OS.GetDIBits(hBitmapDC, info.hbmMask, 0, height, lpvMaskBits, cast(BITMAPINFO*)bmi.ptr, OS.DIB_RGB_COLORS); |
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1343 OS.MoveMemory(maskData.ptr, lpvMaskBits, imageSize); |
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1344 OS.HeapFree(hHeap, 0, lpvMaskBits); |
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1345 /* Loop to invert the mask */ |
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1346 for (int i = 0; i < maskData.length; i++) { |
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1347 maskData[i] ^= -1; |
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1348 } |
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1349 /* Make sure mask scanlinePad is 2 */ |
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1350 int maskPad; |
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1351 int bpl = imageSize / height; |
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1352 for (maskPad = 1; maskPad < 128; maskPad++) { |
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1353 int calcBpl = (((width + 7) / 8) + (maskPad - 1)) / maskPad * maskPad; |
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1354 if (calcBpl is bpl) break; |
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1355 } |
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1356 maskData = ImageData.convertPad(maskData, width, height, 1, maskPad, 2); |
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1357 } |
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1358 /* Clean up */ |
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1359 OS.HeapFree(hHeap, 0, lpvBits); |
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1360 OS.SelectObject(hBitmapDC, hOldBitmap); |
23 | 1361 if (oldPalette !is null) { |
22
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1362 OS.SelectPalette(hBitmapDC, oldPalette, false); |
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1363 OS.RealizePalette(hBitmapDC); |
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1364 } |
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1365 OS.DeleteDC(hBitmapDC); |
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1366 |
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1367 /* Release the HDC for the device */ |
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1368 device.internal_dispose_GC(hDC, null); |
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1369 |
23 | 1370 if (info.hbmColor !is null) OS.DeleteObject(info.hbmColor); |
1371 if (info.hbmMask !is null) OS.DeleteObject(info.hbmMask); | |
22
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1372 /* Construct and return the ImageData */ |
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1373 ImageData imageData = new ImageData(width, height, depth, palette, 4, data); |
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1374 imageData.maskData = maskData; |
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1375 imageData.maskPad = 2; |
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1376 return imageData; |
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1377 } |
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1378 case DWT.BITMAP: { |
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1379 /* Get the basic BITMAP information */ |
23 | 1380 bm = BITMAP.init; |
1381 OS.GetObject(handle, BITMAP.sizeof, &bm); | |
22
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1382 depth = bm.bmPlanes * bm.bmBitsPixel; |
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1383 width = bm.bmWidth; |
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1384 height = bm.bmHeight; |
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1385 /* Find out whether this is a DIB or a DDB. */ |
23 | 1386 bool isDib = (bm.bmBits !is null); |
22
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1387 /* Get the HDC for the device */ |
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1388 auto hDC = device.internal_new_GC(null); |
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1389 |
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1390 /* |
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1391 * Feature in WinCE. GetDIBits is not available in WinCE. The |
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1392 * workaround is to create a temporary DIB from the DDB and use |
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1393 * the bmBits field of DIBSECTION to retrieve the image data. |
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1394 */ |
23 | 1395 auto handle = this.handle; |
117 | 1396 static if (OS.IsWinCE) { |
22
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1397 if (!isDib) { |
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1398 bool mustRestore = false; |
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1399 if (memGC !is null && !memGC.isDisposed()) { |
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1400 memGC.flush (); |
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1401 mustRestore = true; |
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1402 GCData data = memGC.data; |
23 | 1403 if (data.hNullBitmap !is null) { |
22
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1404 OS.SelectObject(memGC.handle, data.hNullBitmap); |
23 | 1405 data.hNullBitmap = null; |
22
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1406 } |
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1407 } |
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1408 handle = createDIBFromDDB(hDC, this.handle, width, height); |
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1409 if (mustRestore) { |
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1410 auto hOldBitmap = OS.SelectObject(memGC.handle, this.handle); |
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1411 memGC.data.hNullBitmap = hOldBitmap; |
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1412 } |
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1413 isDib = true; |
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1414 } |
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1415 } |
23 | 1416 DIBSECTION dib; |
22
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1417 if (isDib) { |
23 | 1418 OS.GetObject(handle, DIBSECTION.sizeof, &dib); |
22
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1419 } |
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1420 /* Calculate number of colors */ |
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1421 int numColors = 0; |
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1422 if (depth <= 8) { |
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1423 if (isDib) { |
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1424 numColors = dib.biClrUsed; |
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1425 } else { |
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1426 numColors = 1 << depth; |
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1427 } |
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1428 } |
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1429 /* Create the BITMAPINFO */ |
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1430 byte[] bmi = null; |
23 | 1431 BITMAPINFOHEADER bmiHeader; |
22
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1432 if (!isDib) { |
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1433 bmiHeader.biSize = BITMAPINFOHEADER.sizeof; |
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1434 bmiHeader.biWidth = width; |
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1435 bmiHeader.biHeight = -height; |
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1436 bmiHeader.biPlanes = 1; |
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1437 bmiHeader.biBitCount = cast(short)depth; |
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1438 bmiHeader.biCompression = OS.BI_RGB; |
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1439 bmi = new byte[BITMAPINFOHEADER.sizeof + numColors * 4]; |
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1440 OS.MoveMemory(bmi.ptr, &bmiHeader, BITMAPINFOHEADER.sizeof); |
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1441 } |
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1442 |
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1443 /* Create the DC and select the bitmap */ |
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1444 auto hBitmapDC = OS.CreateCompatibleDC(hDC); |
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1445 auto hOldBitmap = OS.SelectObject(hBitmapDC, handle); |
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1446 /* Select the palette if necessary */ |
23 | 1447 HPALETTE oldPalette; |
22
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1448 if (!isDib && depth <= 8) { |
23 | 1449 auto hPalette = device.hPalette; |
1450 if (hPalette !is null) { | |
22
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1451 oldPalette = OS.SelectPalette(hBitmapDC, hPalette, false); |
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1452 OS.RealizePalette(hBitmapDC); |
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1453 } |
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1454 } |
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1455 /* Find the size of the image and allocate data */ |
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1456 int imageSize; |
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1457 if (isDib) { |
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1458 imageSize = dib.biSizeImage; |
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1459 } else { |
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1460 /* Call with null lpBits to get the image size */ |
117 | 1461 static if (OS.IsWinCE) DWT.error(DWT.ERROR_NOT_IMPLEMENTED); |
23 | 1462 OS.GetDIBits(hBitmapDC, handle, 0, height, null, cast(BITMAPINFO*)bmi.ptr, OS.DIB_RGB_COLORS); |
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1463 OS.MoveMemory(&bmiHeader, bmi.ptr, BITMAPINFOHEADER.sizeof); |
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1464 imageSize = bmiHeader.biSizeImage; |
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1465 } |
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1466 byte[] data = new byte[imageSize]; |
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1467 /* Get the bitmap data */ |
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1468 if (isDib) { |
117 | 1469 if (OS.IsWinCE) { |
1470 if (this.handle !is handle) { | |
1471 /* get image data from the temporary DIB */ | |
1472 OS.MoveMemory(data.ptr, dib.bmBits, imageSize); | |
1473 } | |
22
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1474 } else { |
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1475 OS.MoveMemory(data.ptr, bm.bmBits, imageSize); |
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1476 } |
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1477 } else { |
23 | 1478 auto hHeap = OS.GetProcessHeap(); |
1479 auto lpvBits = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, imageSize); | |
1480 if (lpvBits is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
117 | 1481 static if (OS.IsWinCE) DWT.error(DWT.ERROR_NOT_IMPLEMENTED); |
23 | 1482 OS.GetDIBits(hBitmapDC, handle, 0, height, lpvBits, cast(BITMAPINFO*)bmi.ptr, OS.DIB_RGB_COLORS); |
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1483 OS.MoveMemory(data.ptr, lpvBits, imageSize); |
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1484 OS.HeapFree(hHeap, 0, lpvBits); |
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1485 } |
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1486 /* Calculate the palette */ |
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1487 PaletteData palette = null; |
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1488 if (depth <= 8) { |
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1489 RGB[] rgbs = new RGB[numColors]; |
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1490 if (isDib) { |
117 | 1491 static if (OS.IsWinCE) { |
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1492 /* |
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1493 * Feature on WinCE. GetDIBColorTable is not supported. |
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1494 * The workaround is to set a pixel to the desired |
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1495 * palette index and use getPixel to get the corresponding |
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1496 * RGB value. |
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1497 */ |
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1498 int red = 0, green = 0, blue = 0; |
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1499 byte[1] pBits; |
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1500 OS.MoveMemory(pBits.ptr, bm.bmBits, 1); |
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1501 byte oldValue = pBits[0]; |
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1502 int mask = (0xFF << (8 - bm.bmBitsPixel)) & 0x00FF; |
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1503 for (int i = 0; i < numColors; i++) { |
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1504 pBits[0] = cast(byte)((i << (8 - bm.bmBitsPixel)) | (pBits[0] & ~mask)); |
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1505 OS.MoveMemory(bm.bmBits, pBits.ptr, 1); |
22
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1506 int color = OS.GetPixel(hBitmapDC, 0, 0); |
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1507 blue = (color & 0xFF0000) >> 16; |
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1508 green = (color & 0xFF00) >> 8; |
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1509 red = color & 0xFF; |
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1510 rgbs[i] = new RGB(red, green, blue); |
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1511 } |
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1512 pBits[0] = oldValue; |
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04d34191e2e9
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1513 OS.MoveMemory(bm.bmBits, pBits.ptr, 1); |
22
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1514 } else { |
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1515 byte[] colors = new byte[numColors * 4]; |
23 | 1516 OS.GetDIBColorTable(hBitmapDC, 0, numColors, cast(RGBQUAD*)colors.ptr); |
22
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1517 int colorIndex = 0; |
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1518 for (int i = 0; i < rgbs.length; i++) { |
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1519 rgbs[i] = new RGB(colors[colorIndex + 2] & 0xFF, colors[colorIndex + 1] & 0xFF, colors[colorIndex] & 0xFF); |
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1520 colorIndex += 4; |
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1521 } |
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1522 } |
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1523 } else { |
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1524 int srcIndex = BITMAPINFOHEADER.sizeof; |
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1525 for (int i = 0; i < numColors; i++) { |
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1526 rgbs[i] = new RGB(bmi[srcIndex + 2] & 0xFF, bmi[srcIndex + 1] & 0xFF, bmi[srcIndex] & 0xFF); |
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1527 srcIndex += 4; |
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1528 } |
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1529 } |
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1530 palette = new PaletteData(rgbs); |
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1531 } else if (depth is 16) { |
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1532 palette = new PaletteData(0x7C00, 0x3E0, 0x1F); |
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1533 } else if (depth is 24) { |
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1534 palette = new PaletteData(0xFF, 0xFF00, 0xFF0000); |
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1535 } else if (depth is 32) { |
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1536 palette = new PaletteData(0xFF00, 0xFF0000, 0xFF000000); |
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1537 } else { |
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1538 DWT.error(DWT.ERROR_UNSUPPORTED_DEPTH); |
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1539 } |
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1540 /* Clean up */ |
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1541 OS.SelectObject(hBitmapDC, hOldBitmap); |
23 | 1542 if (oldPalette !is null) { |
22
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1543 OS.SelectPalette(hBitmapDC, oldPalette, false); |
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1544 OS.RealizePalette(hBitmapDC); |
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1545 } |
117 | 1546 static if (OS.IsWinCE) { |
22
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1547 if (handle !is this.handle) { |
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1548 /* free temporary DIB */ |
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1549 OS.DeleteObject (handle); |
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1550 } |
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1551 } |
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1552 OS.DeleteDC(hBitmapDC); |
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1553 |
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1554 /* Release the HDC for the device */ |
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1555 device.internal_dispose_GC(hDC, null); |
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1556 |
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1557 /* Construct and return the ImageData */ |
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1558 ImageData imageData = new ImageData(width, height, depth, palette, 4, data); |
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1559 imageData.transparentPixel = this.transparentPixel; |
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1560 imageData.alpha = alpha; |
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1561 if (alpha is -1 && alphaData !is null) { |
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1562 imageData.alphaData = new byte[alphaData.length]; |
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1563 System.arraycopy(alphaData, 0, imageData.alphaData, 0, alphaData.length); |
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1564 } |
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1565 return imageData; |
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1566 } |
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1567 default: |
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1568 DWT.error(DWT.ERROR_INVALID_IMAGE); |
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1569 return null; |
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1570 } |
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1571 } |
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1572 |
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1573 /** |
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1574 * Returns an integer hash code for the receiver. Any two |
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1575 * objects that return <code>true</code> when passed to |
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1576 * <code>equals</code> must return the same value for this |
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1577 * method. |
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1578 * |
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1579 * @return the receiver's hash |
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1580 * |
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1581 * @see #equals |
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1582 */ |
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1583 override public hash_t toHash () { |
22
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1584 return cast(hash_t)handle; |
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1585 } |
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1586 |
213 | 1587 void init_(int width, int height) { |
22
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1588 if (width <= 0 || height <= 0) { |
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1589 DWT.error (DWT.ERROR_INVALID_ARGUMENT); |
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1590 } |
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1591 type = DWT.BITMAP; |
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1592 auto hDC = device.internal_new_GC(null); |
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1593 handle = OS.CreateCompatibleBitmap(hDC, width, height); |
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1594 /* |
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1595 * Feature in Windows. CreateCompatibleBitmap() may fail |
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1596 * for large images. The fix is to create a DIB section |
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1597 * in that case. |
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1598 */ |
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1599 if (handle is null) { |
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1600 int bits = OS.GetDeviceCaps(hDC, OS.BITSPIXEL); |
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1601 int planes = OS.GetDeviceCaps(hDC, OS.PLANES); |
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1602 int depth = bits * planes; |
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1603 if (depth < 16) depth = 16; |
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1604 handle = createDIB(width, height, depth); |
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1605 } |
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1606 if (handle !is null) { |
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1607 auto memDC = OS.CreateCompatibleDC(hDC); |
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1608 auto hOldBitmap = OS.SelectObject(memDC, handle); |
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1609 OS.PatBlt(memDC, 0, 0, width, height, OS.PATCOPY); |
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1610 OS.SelectObject(memDC, hOldBitmap); |
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1611 OS.DeleteDC(memDC); |
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1612 } |
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1613 device.internal_dispose_GC(hDC, null); |
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1614 if (handle is null) { |
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1615 DWT.error(DWT.ERROR_NO_HANDLES, null, device.getLastError()); |
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1616 } |
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1617 } |
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1618 |
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1619 static HGDIOBJ createDIB(int width, int height, int depth) { |
23 | 1620 BITMAPINFOHEADER bmiHeader; |
22
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1621 bmiHeader.biSize = BITMAPINFOHEADER.sizeof; |
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1622 bmiHeader.biWidth = width; |
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1623 bmiHeader.biHeight = -height; |
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1624 bmiHeader.biPlanes = 1; |
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1625 bmiHeader.biBitCount = cast(short)depth; |
117 | 1626 static if (OS.IsWinCE) bmiHeader.biCompression = OS.BI_BITFIELDS; |
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1627 else bmiHeader.biCompression = OS.BI_RGB; |
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1628 byte[] bmi = new byte[BITMAPINFOHEADER.sizeof + (OS.IsWinCE ? 12 : 0)]; |
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1629 OS.MoveMemory(bmi.ptr, &bmiHeader, BITMAPINFOHEADER.sizeof); |
22
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1630 /* Set the rgb colors into the bitmap info */ |
117 | 1631 static if (OS.IsWinCE) { |
22
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1632 int redMask = 0xFF00; |
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changeset
|
1633 int greenMask = 0xFF0000; |
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1634 int blueMask = 0xFF000000; |
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changeset
|
1635 /* big endian */ |
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changeset
|
1636 int offset = BITMAPINFOHEADER.sizeof; |
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|
1637 bmi[offset] = cast(byte)((redMask & 0xFF000000) >> 24); |
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|
1638 bmi[offset + 1] = cast(byte)((redMask & 0xFF0000) >> 16); |
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|
1639 bmi[offset + 2] = cast(byte)((redMask & 0xFF00) >> 8); |
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parents:
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changeset
|
1640 bmi[offset + 3] = cast(byte)((redMask & 0xFF) >> 0); |
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parents:
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changeset
|
1641 bmi[offset + 4] = cast(byte)((greenMask & 0xFF000000) >> 24); |
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changeset
|
1642 bmi[offset + 5] = cast(byte)((greenMask & 0xFF0000) >> 16); |
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1643 bmi[offset + 6] = cast(byte)((greenMask & 0xFF00) >> 8); |
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1644 bmi[offset + 7] = cast(byte)((greenMask & 0xFF) >> 0); |
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changeset
|
1645 bmi[offset + 8] = cast(byte)((blueMask & 0xFF000000) >> 24); |
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1646 bmi[offset + 9] = cast(byte)((blueMask & 0xFF0000) >> 16); |
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1647 bmi[offset + 10] = cast(byte)((blueMask & 0xFF00) >> 8); |
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1648 bmi[offset + 11] = cast(byte)((blueMask & 0xFF) >> 0); |
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1649 } |
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1650 |
213 | 1651 void* pBits; |
1652 return OS.CreateDIBSection(null, cast(BITMAPINFO*)bmi.ptr, OS.DIB_RGB_COLORS, &pBits, null, 0); | |
22
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1653 } |
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1654 |
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1655 /** |
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1656 * Feature in WinCE. GetIconInfo is not available in WinCE. |
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1657 * The workaround is to cache the object ImageData for images |
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1658 * of type DWT.ICON. The bitmaps hbmMask and hbmColor can then |
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1659 * be reconstructed by using our version of getIconInfo. |
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1660 * This function takes an ICONINFO object and sets the fields |
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1661 * hbmMask and hbmColor with the corresponding bitmaps it has |
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1662 * created. |
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1663 * Note. These bitmaps must be freed - as they would have to be |
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1664 * if the regular GetIconInfo had been used. |
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1665 */ |
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1666 static void GetIconInfo(Image image, ICONINFO* info) { |
197
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117
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|
1667 int[] result = init_(image.device, null, image.data); |
23 | 1668 info.hbmColor = cast(HBITMAP)result[0]; |
1669 info.hbmMask = cast(HBITMAP)result[1]; | |
22
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1670 } |
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1671 |
197
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1672 static int[] init_(Device device, Image image, ImageData i) { |
22
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1673 |
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1674 /* |
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1675 * BUG in Windows 98: |
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1676 * A monochrome DIBSection will display as solid black |
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1677 * on Windows 98 machines, even though it contains the |
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1678 * correct data. The fix is to convert 1-bit ImageData |
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1679 * into 4-bit ImageData before creating the image. |
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1680 */ |
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1681 /* Windows does not support 2-bit images. Convert to 4-bit image. */ |
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1682 if ((OS.IsWin95 && i.depth is 1 && i.getTransparencyType() !is DWT.TRANSPARENCY_MASK) || i.depth is 2) { |
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1683 ImageData img = new ImageData(i.width, i.height, 4, i.palette); |
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1684 ImageData.blit(ImageData.BLIT_SRC, |
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1685 i.data, i.depth, i.bytesPerLine, i.getByteOrder(), 0, 0, i.width, i.height, null, null, null, |
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1686 ImageData.ALPHA_OPAQUE, null, 0, 0, 0, |
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1687 img.data, img.depth, img.bytesPerLine, i.getByteOrder(), 0, 0, img.width, img.height, null, null, null, |
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1688 false, false); |
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1689 img.transparentPixel = i.transparentPixel; |
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1690 img.maskPad = i.maskPad; |
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1691 img.maskData = i.maskData; |
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1692 img.alpha = i.alpha; |
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1693 img.alphaData = i.alphaData; |
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1694 i = img; |
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1695 } |
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1696 /* |
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1697 * Windows supports 16-bit mask of (0x7C00, 0x3E0, 0x1F), |
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1698 * 24-bit mask of (0xFF0000, 0xFF00, 0xFF) and 32-bit mask |
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1699 * (0x00FF0000, 0x0000FF00, 0x000000FF) as documented in |
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1700 * MSDN BITMAPINFOHEADER. Make sure the image is |
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1701 * Windows-supported. |
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1702 */ |
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1703 /* |
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1704 * Note on WinCE. CreateDIBSection requires the biCompression |
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1705 * field of the BITMAPINFOHEADER to be set to BI_BITFIELDS for |
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1706 * 16 and 32 bit direct images (see MSDN for CreateDIBSection). |
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1707 * In this case, the color mask can be set to any value. For |
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1708 * consistency, it is set to the same mask used by non WinCE |
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1709 * platforms in BI_RGB mode. |
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1710 */ |
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1711 if (i.palette.isDirect) { |
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1712 final PaletteData palette = i.palette; |
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1713 final int redMask = palette.redMask; |
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1714 final int greenMask = palette.greenMask; |
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1715 final int blueMask = palette.blueMask; |
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1716 int newDepth = i.depth; |
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1717 int newOrder = ImageData.MSB_FIRST; |
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1718 PaletteData newPalette = null; |
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1719 |
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1720 switch (i.depth) { |
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1721 case 8: |
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1722 newDepth = 16; |
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1723 newOrder = ImageData.LSB_FIRST; |
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1724 newPalette = new PaletteData(0x7C00, 0x3E0, 0x1F); |
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1725 break; |
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1726 case 16: |
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1727 newOrder = ImageData.LSB_FIRST; |
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1728 if (!(redMask is 0x7C00 && greenMask is 0x3E0 && blueMask is 0x1F)) { |
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1729 newPalette = new PaletteData(0x7C00, 0x3E0, 0x1F); |
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1730 } |
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1731 break; |
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1732 case 24: |
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1733 if (!(redMask is 0xFF && greenMask is 0xFF00 && blueMask is 0xFF0000)) { |
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1734 newPalette = new PaletteData(0xFF, 0xFF00, 0xFF0000); |
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1735 } |
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1736 break; |
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1737 case 32: |
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1738 if (!(redMask is 0xFF00 && greenMask is 0xFF0000 && blueMask is 0xFF000000)) { |
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1739 newPalette = new PaletteData(0xFF00, 0xFF0000, 0xFF000000); |
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1740 } |
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1741 break; |
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1742 default: |
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1743 DWT.error(DWT.ERROR_UNSUPPORTED_DEPTH); |
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1744 } |
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1745 if (newPalette !is null) { |
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1746 ImageData img = new ImageData(i.width, i.height, newDepth, newPalette); |
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1747 ImageData.blit(ImageData.BLIT_SRC, |
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1748 i.data, i.depth, i.bytesPerLine, i.getByteOrder(), 0, 0, i.width, i.height, redMask, greenMask, blueMask, |
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1749 ImageData.ALPHA_OPAQUE, null, 0, 0, 0, |
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1750 img.data, img.depth, img.bytesPerLine, newOrder, 0, 0, img.width, img.height, newPalette.redMask, newPalette.greenMask, newPalette.blueMask, |
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1751 false, false); |
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1752 if (i.transparentPixel !is -1) { |
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1753 img.transparentPixel = newPalette.getPixel(palette.getRGB(i.transparentPixel)); |
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1754 } |
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1755 img.maskPad = i.maskPad; |
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1756 img.maskData = i.maskData; |
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1757 img.alpha = i.alpha; |
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1758 img.alphaData = i.alphaData; |
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1759 i = img; |
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1760 } |
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1761 } |
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1762 /* Construct bitmap info header by hand */ |
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1763 RGB[] rgbs = i.palette.getRGBs(); |
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1764 bool useBitfields = OS.IsWinCE && (i.depth is 16 || i.depth is 32); |
23 | 1765 BITMAPINFOHEADER bmiHeader; |
22
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1766 bmiHeader.biSize = BITMAPINFOHEADER.sizeof; |
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1767 bmiHeader.biWidth = i.width; |
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1768 bmiHeader.biHeight = -i.height; |
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1769 bmiHeader.biPlanes = 1; |
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1770 bmiHeader.biBitCount = cast(short)i.depth; |
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1771 if (useBitfields) bmiHeader.biCompression = OS.BI_BITFIELDS; |
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1772 else bmiHeader.biCompression = OS.BI_RGB; |
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1773 bmiHeader.biClrUsed = rgbs is null ? 0 : rgbs.length; |
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1774 byte[] bmi; |
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1775 if (i.palette.isDirect) |
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1776 bmi = new byte[BITMAPINFOHEADER.sizeof + (useBitfields ? 12 : 0)]; |
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1777 else |
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1778 bmi = new byte[BITMAPINFOHEADER.sizeof + rgbs.length * 4]; |
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1779 OS.MoveMemory(bmi.ptr, &bmiHeader, BITMAPINFOHEADER.sizeof); |
22
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1780 /* Set the rgb colors into the bitmap info */ |
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1781 int offset = BITMAPINFOHEADER.sizeof; |
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1782 if (i.palette.isDirect) { |
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1783 if (useBitfields) { |
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1784 PaletteData palette = i.palette; |
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1785 int redMask = palette.redMask; |
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1786 int greenMask = palette.greenMask; |
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1787 int blueMask = palette.blueMask; |
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1788 /* |
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1789 * The color masks must be written based on the |
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1790 * endianness of the ImageData. |
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1791 */ |
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1792 if (i.getByteOrder() is ImageData.LSB_FIRST) { |
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1793 bmi[offset] = cast(byte)((redMask & 0xFF) >> 0); |
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1794 bmi[offset + 1] = cast(byte)((redMask & 0xFF00) >> 8); |
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1795 bmi[offset + 2] = cast(byte)((redMask & 0xFF0000) >> 16); |
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1796 bmi[offset + 3] = cast(byte)((redMask & 0xFF000000) >> 24); |
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1797 bmi[offset + 4] = cast(byte)((greenMask & 0xFF) >> 0); |
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1798 bmi[offset + 5] = cast(byte)((greenMask & 0xFF00) >> 8); |
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1799 bmi[offset + 6] = cast(byte)((greenMask & 0xFF0000) >> 16); |
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1800 bmi[offset + 7] = cast(byte)((greenMask & 0xFF000000) >> 24); |
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1801 bmi[offset + 8] = cast(byte)((blueMask & 0xFF) >> 0); |
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1802 bmi[offset + 9] = cast(byte)((blueMask & 0xFF00) >> 8); |
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1803 bmi[offset + 10] = cast(byte)((blueMask & 0xFF0000) >> 16); |
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1804 bmi[offset + 11] = cast(byte)((blueMask & 0xFF000000) >> 24); |
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1805 } else { |
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1806 bmi[offset] = cast(byte)((redMask & 0xFF000000) >> 24); |
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1807 bmi[offset + 1] = cast(byte)((redMask & 0xFF0000) >> 16); |
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1808 bmi[offset + 2] = cast(byte)((redMask & 0xFF00) >> 8); |
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1809 bmi[offset + 3] = cast(byte)((redMask & 0xFF) >> 0); |
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1810 bmi[offset + 4] = cast(byte)((greenMask & 0xFF000000) >> 24); |
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1811 bmi[offset + 5] = cast(byte)((greenMask & 0xFF0000) >> 16); |
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1812 bmi[offset + 6] = cast(byte)((greenMask & 0xFF00) >> 8); |
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1813 bmi[offset + 7] = cast(byte)((greenMask & 0xFF) >> 0); |
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1814 bmi[offset + 8] = cast(byte)((blueMask & 0xFF000000) >> 24); |
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1815 bmi[offset + 9] = cast(byte)((blueMask & 0xFF0000) >> 16); |
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1816 bmi[offset + 10] = cast(byte)((blueMask & 0xFF00) >> 8); |
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1817 bmi[offset + 11] = cast(byte)((blueMask & 0xFF) >> 0); |
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1818 } |
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1819 } |
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1820 } else { |
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1821 for (int j = 0; j < rgbs.length; j++) { |
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1822 bmi[offset] = cast(byte)rgbs[j].blue; |
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1823 bmi[offset + 1] = cast(byte)rgbs[j].green; |
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1824 bmi[offset + 2] = cast(byte)rgbs[j].red; |
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1825 bmi[offset + 3] = 0; |
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1826 offset += 4; |
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1827 } |
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1828 } |
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1829 void* pBits; |
23 | 1830 auto hDib = OS.CreateDIBSection(null, cast(BITMAPINFO*)bmi.ptr, OS.DIB_RGB_COLORS, &pBits, null, 0); |
1831 if (hDib is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
22
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1832 /* In case of a scanline pad other than 4, do the work to convert it */ |
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1833 byte[] data = i.data; |
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1834 if (i.scanlinePad !is 4 && (i.bytesPerLine % 4 !is 0)) { |
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1835 data = ImageData.convertPad(data, i.width, i.height, i.depth, i.scanlinePad, 4); |
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1836 } |
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1837 OS.MoveMemory(pBits, data.ptr, data.length); |
22
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1838 |
213 | 1839 int /*long*/ [] result = null; |
22
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1840 if (i.getTransparencyType() is DWT.TRANSPARENCY_MASK) { |
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1841 /* Get the HDC for the device */ |
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1842 auto hDC = device.internal_new_GC(null); |
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1843 |
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1844 /* Create the color bitmap */ |
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1845 auto hdcSrc = OS.CreateCompatibleDC(hDC); |
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1846 OS.SelectObject(hdcSrc, hDib); |
23 | 1847 auto hBitmap = OS.CreateCompatibleBitmap(hDC, i.width, i.height); |
1848 if (hBitmap is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
22
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1849 auto hdcDest = OS.CreateCompatibleDC(hDC); |
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1850 OS.SelectObject(hdcDest, hBitmap); |
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1851 OS.BitBlt(hdcDest, 0, 0, i.width, i.height, hdcSrc, 0, 0, OS.SRCCOPY); |
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1852 |
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1853 /* Release the HDC for the device */ |
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1854 device.internal_dispose_GC(hDC, null); |
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1855 |
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1856 /* Create the mask. Windows requires icon masks to have a scanline pad of 2. */ |
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1857 byte[] maskData = ImageData.convertPad(i.maskData, i.width, i.height, 1, i.maskPad, 2); |
23 | 1858 auto hMask = OS.CreateBitmap(i.width, i.height, 1, 1, maskData.ptr); |
1859 if (hMask is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
22
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1860 OS.SelectObject(hdcSrc, hMask); |
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1861 OS.PatBlt(hdcSrc, 0, 0, i.width, i.height, OS.DSTINVERT); |
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1862 OS.DeleteDC(hdcSrc); |
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1863 OS.DeleteDC(hdcDest); |
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1864 OS.DeleteObject(hDib); |
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1865 |
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1866 if (image is null) { |
23 | 1867 result = [ cast(int) hBitmap, cast(int) hMask]; |
22
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1868 } else { |
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1869 /* Create the icon */ |
23 | 1870 ICONINFO info; |
22
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1871 info.fIcon = true; |
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1872 info.hbmColor = hBitmap; |
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1873 info.hbmMask = hMask; |
23 | 1874 auto hIcon = OS.CreateIconIndirect(&info); |
1875 if (hIcon is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
22
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1876 OS.DeleteObject(hBitmap); |
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1877 OS.DeleteObject(hMask); |
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1878 image.handle = hIcon; |
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1879 image.type = DWT.ICON; |
117 | 1880 static if (OS.IsWinCE) image.data = i; |
22
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1881 } |
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1882 } else { |
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1883 if (image is null) { |
23 | 1884 result = [ cast(int) hDib]; |
22
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1885 } else { |
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1886 image.handle = hDib; |
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1887 image.type = DWT.BITMAP; |
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1888 image.transparentPixel = i.transparentPixel; |
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1889 if (image.transparentPixel is -1) { |
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1890 image.alpha = i.alpha; |
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1891 if (i.alpha is -1 && i.alphaData !is null) { |
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1892 int length = i.alphaData.length; |
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1893 image.alphaData = new byte[length]; |
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1894 System.arraycopy(i.alphaData, 0, image.alphaData, 0, length); |
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1895 } |
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1896 } |
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1897 } |
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1898 } |
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1899 return result; |
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1900 } |
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1901 |
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1902 static int[] init_(Device device, Image image, ImageData source, ImageData mask) { |
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1903 /* Create a temporary image and locate the black pixel */ |
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1904 ImageData imageData; |
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1905 int blackIndex = 0; |
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1906 if (source.palette.isDirect) { |
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1907 imageData = new ImageData(source.width, source.height, source.depth, source.palette); |
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1908 } else { |
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1909 RGB black = new RGB(0, 0, 0); |
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1910 RGB[] rgbs = source.getRGBs(); |
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1911 if (source.transparentPixel !is -1) { |
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1912 /* |
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1913 * The source had transparency, so we can use the transparent pixel |
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1914 * for black. |
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1915 */ |
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1916 RGB[] newRGBs = new RGB[rgbs.length]; |
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1917 System.arraycopy(rgbs, 0, newRGBs, 0, rgbs.length); |
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1918 if (source.transparentPixel >= newRGBs.length) { |
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1919 /* Grow the palette with black */ |
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1920 rgbs = new RGB[source.transparentPixel + 1]; |
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1921 System.arraycopy(newRGBs, 0, rgbs, 0, newRGBs.length); |
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1922 for (int i = newRGBs.length; i <= source.transparentPixel; i++) { |
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1923 rgbs[i] = new RGB(0, 0, 0); |
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1924 } |
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1925 } else { |
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1926 newRGBs[source.transparentPixel] = black; |
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1927 rgbs = newRGBs; |
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1928 } |
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1929 blackIndex = source.transparentPixel; |
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1930 imageData = new ImageData(source.width, source.height, source.depth, new PaletteData(rgbs)); |
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1931 } else { |
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1932 while (blackIndex < rgbs.length) { |
23 | 1933 if (rgbs[blackIndex] ==/*eq*/ black) break; |
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1934 blackIndex++; |
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1935 } |
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1936 if (blackIndex is rgbs.length) { |
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1937 /* |
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1938 * We didn't find black in the palette, and there is no transparent |
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1939 * pixel we can use. |
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1940 */ |
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1941 if ((1 << source.depth) > rgbs.length) { |
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1942 /* We can grow the palette and add black */ |
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1943 RGB[] newRGBs = new RGB[rgbs.length + 1]; |
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1944 System.arraycopy(rgbs, 0, newRGBs, 0, rgbs.length); |
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1945 newRGBs[rgbs.length] = black; |
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1946 rgbs = newRGBs; |
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1947 } else { |
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1948 /* No room to grow the palette */ |
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1949 blackIndex = -1; |
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1950 } |
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1951 } |
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1952 imageData = new ImageData(source.width, source.height, source.depth, new PaletteData(rgbs)); |
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1953 } |
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1954 } |
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1955 if (blackIndex is -1) { |
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1956 /* There was no black in the palette, so just copy the data over */ |
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1957 System.arraycopy(source.data, 0, imageData.data, 0, imageData.data.length); |
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1958 } else { |
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1959 /* Modify the source image to contain black wherever the mask is 0 */ |
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1960 int[] imagePixels = new int[imageData.width]; |
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1961 int[] maskPixels = new int[mask.width]; |
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1962 for (int y = 0; y < imageData.height; y++) { |
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1963 source.getPixels(0, y, imageData.width, imagePixels, 0); |
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1964 mask.getPixels(0, y, mask.width, maskPixels, 0); |
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1965 for (int i = 0; i < imagePixels.length; i++) { |
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1966 if (maskPixels[i] is 0) imagePixels[i] = blackIndex; |
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1967 } |
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1968 imageData.setPixels(0, y, source.width, imagePixels, 0); |
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1969 } |
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1970 } |
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1971 imageData.maskPad = mask.scanlinePad; |
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1972 imageData.maskData = mask.data; |
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1973 return init_(device, image, imageData); |
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1974 } |
213 | 1975 void init_(ImageData i) { |
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1976 if (i is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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1977 init_(device, this, i); |
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1978 } |
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1979 |
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1980 /** |
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1981 * Invokes platform specific functionality to allocate a new GC handle. |
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1982 * <p> |
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1983 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public |
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1984 * API for <code>Image</code>. It is marked public only so that it |
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1985 * can be shared within the packages provided by DWT. It is not |
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1986 * available on all platforms, and should never be called from |
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1987 * application code. |
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1988 * </p> |
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1989 * |
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1990 * @param data the platform specific GC data |
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1991 * @return the platform specific GC handle |
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1992 */ |
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1993 public HDC internal_new_GC (GCData data) { |
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1994 if (handle is null) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
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1995 /* |
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1996 * Create a new GC that can draw into the image. |
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1997 * Only supported for bitmaps. |
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1998 */ |
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1999 if (type !is DWT.BITMAP || memGC !is null) { |
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2000 DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
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2001 } |
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2002 |
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2003 /* Create a compatible HDC for the device */ |
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2004 auto hDC = device.internal_new_GC(null); |
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2005 auto imageDC = OS.CreateCompatibleDC(hDC); |
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2006 device.internal_dispose_GC(hDC, null); |
23 | 2007 if (imageDC is null) DWT.error(DWT.ERROR_NO_HANDLES); |
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2008 |
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2009 if (data !is null) { |
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2010 /* Set the GCData fields */ |
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2011 int mask = DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT; |
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2012 if ((data.style & mask) !is 0) { |
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2013 data.layout = (data.style & DWT.RIGHT_TO_LEFT) !is 0 ? OS.LAYOUT_RTL : 0; |
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2014 } else { |
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2015 data.style |= DWT.LEFT_TO_RIGHT; |
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2016 } |
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2017 data.device = device; |
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2018 data.image = this; |
213 | 2019 data.font = device.systemFont; |
22
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2020 } |
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2021 return imageDC; |
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2022 } |
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2023 |
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2024 /** |
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2025 * Invokes platform specific functionality to dispose a GC handle. |
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2026 * <p> |
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2027 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public |
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2028 * API for <code>Image</code>. It is marked public only so that it |
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2029 * can be shared within the packages provided by DWT. It is not |
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2030 * available on all platforms, and should never be called from |
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2031 * application code. |
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2032 * </p> |
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2033 * |
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2034 * @param hDC the platform specific GC handle |
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2035 * @param data the platform specific GC data |
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2036 */ |
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2037 public void internal_dispose_GC (HDC hDC, GCData data) { |
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2038 OS.DeleteDC(hDC); |
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2039 } |
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2040 |
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2041 /** |
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2042 * Returns <code>true</code> if the image has been disposed, |
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2043 * and <code>false</code> otherwise. |
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2044 * <p> |
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2045 * This method gets the dispose state for the image. |
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2046 * When an image has been disposed, it is an error to |
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2047 * invoke any other method using the image. |
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2048 * |
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2049 * @return <code>true</code> when the image is disposed and <code>false</code> otherwise |
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2050 */ |
48
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2051 override public bool isDisposed() { |
22
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2052 return handle is null; |
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2053 } |
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2054 |
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2055 /** |
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2056 * Sets the color to which to map the transparent pixel. |
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2057 * <p> |
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2058 * There are certain uses of <code>Images</code> that do not support |
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2059 * transparency (for example, setting an image into a button or label). |
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2060 * In these cases, it may be desired to simulate transparency by using |
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2061 * the background color of the widget to paint the transparent pixels |
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2062 * of the image. This method specifies the color that will be used in |
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2063 * these cases. For example: |
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2064 * <pre> |
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2065 * Button b = new Button(); |
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2066 * image.setBackground(b.getBackground()); |
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2067 * b.setImage(image); |
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2068 * </pre> |
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2069 * </p><p> |
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2070 * The image may be modified by this operation (in effect, the |
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2071 * transparent regions may be filled with the supplied color). Hence |
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2072 * this operation is not reversible and it is not legal to call |
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2073 * this function twice or with a null argument. |
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2074 * </p><p> |
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2075 * This method has no effect if the receiver does not have a transparent |
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2076 * pixel value. |
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2077 * </p> |
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2078 * |
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2079 * @param color the color to use when a transparent pixel is specified |
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2080 * |
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2081 * @exception IllegalArgumentException <ul> |
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2082 * <li>ERROR_NULL_ARGUMENT - if the color is null</li> |
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2083 * <li>ERROR_INVALID_ARGUMENT - if the color has been disposed</li> |
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2084 * </ul> |
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2085 * @exception DWTException <ul> |
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2086 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
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2087 * </ul> |
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2088 */ |
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2089 public void setBackground(Color color) { |
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2090 /* |
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2091 * Note. Not implemented on WinCE. |
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2092 */ |
117 | 2093 static if (OS.IsWinCE) return; |
22
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2094 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
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2095 if (color is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
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2096 if (color.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); |
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2097 if (transparentPixel is -1) return; |
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2098 |
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2099 /* Get the HDC for the device */ |
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2100 auto hDC = device.internal_new_GC(null); |
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2101 |
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2102 /* Change the background color in the image */ |
23 | 2103 BITMAP bm; |
2104 OS.GetObject(handle, BITMAP.sizeof, &bm); | |
22
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2105 auto hdcMem = OS.CreateCompatibleDC(hDC); |
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2106 OS.SelectObject(hdcMem, handle); |
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2107 int maxColors = 1 << bm.bmBitsPixel; |
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2108 byte[] colors = new byte[maxColors * 4]; |
117 | 2109 static if (OS.IsWinCE) DWT.error(DWT.ERROR_NOT_IMPLEMENTED); |
23 | 2110 int numColors = OS.GetDIBColorTable(hdcMem, 0, maxColors, cast(RGBQUAD*)colors.ptr); |
22
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2111 int offset = transparentPixel * 4; |
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2112 colors[offset] = cast(byte)color.getBlue(); |
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2113 colors[offset + 1] = cast(byte)color.getGreen(); |
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2114 colors[offset + 2] = cast(byte)color.getRed(); |
117 | 2115 static if (OS.IsWinCE) DWT.error(DWT.ERROR_NOT_IMPLEMENTED); |
23 | 2116 OS.SetDIBColorTable(hdcMem, 0, numColors, cast(RGBQUAD*)colors.ptr); |
22
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2117 OS.DeleteDC(hdcMem); |
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2118 |
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2119 /* Release the HDC for the device */ |
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2120 device.internal_dispose_GC(hDC, null); |
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2121 } |
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2122 |
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2123 /** |
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2124 * Returns a string containing a concise, human-readable |
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2125 * description of the receiver. |
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2126 * |
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2127 * @return a string representation of the receiver |
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2128 */ |
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2129 override public String toString () { |
22
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2130 if (isDisposed()) return "Image {*DISPOSED*}"; |
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2131 return Format( "Image {{{}}", handle ); |
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2132 } |
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2133 |
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2134 /** |
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2135 * Invokes platform specific functionality to allocate a new image. |
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2136 * <p> |
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2137 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public |
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2138 * API for <code>Image</code>. It is marked public only so that it |
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2139 * can be shared within the packages provided by DWT. It is not |
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2140 * available on all platforms, and should never be called from |
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2141 * application code. |
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2142 * </p> |
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2143 * |
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2144 * @param device the device on which to allocate the color |
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2145 * @param type the type of the image (<code>DWT.BITMAP</code> or <code>DWT.ICON</code>) |
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2146 * @param handle the OS handle for the image |
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2147 * @return a new image object containing the specified device, type and handle |
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2148 */ |
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2149 public static Image win32_new(Device device, int type, HGDIOBJ handle) { |
213 | 2150 Image image = new Image(device); |
22
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2151 image.type = type; |
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2152 image.handle = handle; |
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2153 return image; |
5f2e72114476
Image in work, this revision does not compile
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
2154 } |
5f2e72114476
Image in work, this revision does not compile
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
2155 |
5f2e72114476
Image in work, this revision does not compile
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
2156 } |