1 | /*
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2 | * SWT006_01.java
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3 | */
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4 |
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5 | /*
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6 | * Copyright (c) 2002, 2004 EclipseOS2 Team.
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7 | * This file is made available under the terms of the Common Public License v1.0
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8 | * which accompanies this distribution, and is available at
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9 | * http://www.eclipse.org/legal/cpl-v10.html
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10 | */
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11 |
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12 | import java.util.ArrayList;
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13 | import java.util.Iterator;
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14 | import org.eclipse.swt.*;
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15 | import org.eclipse.swt.widgets.*;
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16 | import org.eclipse.swt.events.*;
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17 | import org.eclipse.swt.graphics.*;
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18 | import org.eclipse.swt.layout.FormAttachment;
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19 | import org.eclipse.swt.layout.FormData;
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20 | import org.eclipse.swt.layout.FormLayout;
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21 |
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22 | /**
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23 | * This example tests image drawing.
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24 | *
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25 | * Page #0
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26 | * -------
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27 | *
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28 | * This test checks scaling and XOR functions in different modes:
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29 | *
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30 | * 1. a 8-bit image is drawn as is and then a part of it (marked on the
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31 | * original with a dotted rectangle) is drawn in different proportions,
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32 | * then the same is repeated in the XOR mode.
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33 | * 2. a blank image with the display preferred depth is created, some
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34 | * graphics is drawn on it and then it is scaled as above.
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35 | * 3. a combination of the above two: a 8-bit image is taken again
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36 | * and graphics is drawn on it.
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37 | * 4. a blank image is created with the abive 8-bit image color depth and
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38 | * palette and then everything is repeated.
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39 | *
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40 | * Also, for images from 2 to 4 background and foreground colors are queried
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41 | * and printed to the log just after the GC is created and then after drawing
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42 | * the red circle (when the foreground is changed). Note that on images
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43 | * 3 and 4 the circle is not actually in red, it has the color closest to the
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44 | * red in the image's palette.
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45 | *
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46 | * For all images, after drawing, an image copy is created using the
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47 | * getImageData() method and then painted to the right. For the first
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48 | * image getImageData() is called BEFORE the image's GC is disposed, for all
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49 | * others -- AFTER it.
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50 | *
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51 | * Note that the background of the image 4 is dark -- this is because it is
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52 | * created using a blank ImageData instance which initially fills the image data
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53 | * with zeroes, that corresponds to the 0th index in the image's palette (a
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54 | * color close to black in our case) for palette-based images or to the black
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55 | * RGB color for direct color images.
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56 | *
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57 | * Page #1
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58 | * -------
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59 | *
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60 | * Tests loading and drawing images from files of different image formats.
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61 | * All images in one row must look identically except 1-bit images at the
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62 | * bottom, where every image has its own color for "foreground" pixels.
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63 | *
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64 | * Page #2
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65 | * -------
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66 | *
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67 | * Tests image transparency:
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68 | *
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69 | * 1. the 1-bit image is drawin and scaled (as on the page #0) having its
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70 | * "background" pixels as transparent ones.
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71 | * 2. the 1-bit image is drawin and scaled as above having its
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72 | * "foreground" pixels as transparent ones.
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73 | * 3. the 24-bit image is drawin and scaled as above having white pixels as
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74 | * transparent ones.
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75 | *
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76 | * Page #3
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77 | * -------
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78 | *
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79 | * Tests image alpha settings:
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80 | *
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81 | * 1. the 8-bit image is the same as on the page #0, but with alpha data
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82 | * manually set to appear as half-transparent in its upper third.
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83 | * 2. the same image but loaded from the PNG file which contains complex alpha.
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84 | *
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85 | * Page #4
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86 | * -------
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87 | *
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88 | * Tests the GC.fillGradientRectangle() method which draws a gradient strip
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89 | * processing from the current background color to the foreground.
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90 | *
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91 | * Page #5
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92 | * -------
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93 | *
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94 | * Tests icon scaling. First two icons are also copied using the getImageData()
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95 | * method and copies are drawn to the right.
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96 | *
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97 | * Two last rows are icons indirectly created from separate icon and mask
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98 | * image data using the corresponding Image constructor. Note that the last
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99 | * but one icon is drawn inverted where the last icon is transparent -- this
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100 | * is because the former is created from the palette-based image which doesn't
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101 | * have the black color in its palette nor the space to add it (transparent
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102 | * pixels must be black in order for the icon transparency to work).
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103 | *
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104 | * Page #6
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105 | * -------
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106 | *
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107 | * Tests for the Image copy constructor (one that takes one of SWT_IMAGE_*
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108 | * conatants as its last parameter). First column is created using
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109 | * SWT_IMAGE_COPY, second -- using SWT_IMAGE_DISABLE and third -- using
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110 | * SWT_IMAGE_GRAY. First three rows are bitmaps, last three are icons.
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111 | *
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112 | * Test output
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113 | * -----------
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114 | *
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115 | * This testcase also performs tests of Image.getBackground() /
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116 | * setBackground() and GC.getBackground() / setBackground() for images and
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117 | * its output should contain the following:
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118 |
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119 | [img2]:
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120 | gc bg (before) = Color {255, 255, 255}
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121 | gc fg (before) = Color {0, 0, 0}
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122 | gc fg (after) = Color {255, 0, 0}
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123 | [img3]:
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124 | gc bg (before) = Color {255, 255, 255}
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125 | gc fg (before) = Color {0, 0, 0}
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126 | gc fg (after) = Color {255, 0, 0}
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127 | [img4]:
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128 | gc bg (before) = Color {255, 255, 255}
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129 | gc fg (before) = Color {0, 0, 0}
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130 | gc fg (after) = Color {255, 0, 0}
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131 | img01.1.tr-b.gif: transparent (before) = Color {135, 0, 0}
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132 | img01.1.tr-f.gif: transparent (before) = Color {0, 0, 255}
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133 | img01.24.tr.png: transparent (before) = Color {255, 255, 255}
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134 | img01.1.tr-b.gif: transparent (after) = Color {128, 128, 128}
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135 | img01.1.tr-f.gif: transparent (after) = Color {128, 128, 128}
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136 | img01.24.tr.png: transparent (after) = Color {128, 128, 128}
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137 |
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138 | * When the system is in 256-color mode the last but five line will be:
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139 |
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140 | img01.1.tr-b.gif: transparent (before) = Color {128, 0, 0}
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141 |
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142 | * This is because the default palette doesn't have the color with these
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143 | * RGB values, so the best match is returned.
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144 | *
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145 | * This testcase also saves all 15 images from the page #1 to the current
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146 | * working directory for comparison with originals -- they should be the
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147 | * same. However, when the system is in 256-color mode saving images doesn't
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148 | * work as desired -- this issue is descrbed in the $CVSROOT/doc/diff.html,
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149 | * difference #007.
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150 | *
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151 | *
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152 | * General note. When the Chechers checkbox is un-checked, the "corruption"
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153 | * behavior of XORed images when sizing is expected because the widget is in
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154 | * SWT.NO_REDRAW_RESIZE mode (i.e. it isn't completely redrawn when sizing,
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155 | * so different parts of images can be XORed different number of times).
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156 | * The same applies to images that have the alpha channel.
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157 | */
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158 |
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159 | public class SWT006_01 extends SWTTestCase {
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160 |
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161 | static {
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162 | STEP= "006";
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163 | TEST = "01";
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164 | DESC = "Images";
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165 | }
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166 |
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167 |
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168 | int page = 0;
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169 | final static int LAST_PAGE = 6;
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170 |
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171 | Shell shell;
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172 | Button next;
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173 | static String Title;
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174 |
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175 | boolean drawCheckers = true;
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176 | Image background = null;
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177 |
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178 | final static String imageDir = System.getProperty ("user.dir") +
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179 | "/tests/SWT/images/";
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180 |
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181 | public static void main (String [] args) {
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182 | Title = "Images";
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183 | go (new SWT006_01 ());
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184 | }
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185 |
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186 | Shell createTopShell (Display display) {
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187 |
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188 | shell = new Shell (display,
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189 | SWT.SHELL_TRIM | SWT.NO_REDRAW_RESIZE);// | SWT.NO_MERGE_PAINTS);
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190 |
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191 | final Image img1 = new Image (display, imageDir + "icon48_full.bmp");
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192 | ImageData imgData = img1.getImageData ();
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193 | final Image img1_copy = new Image (display, imgData);
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194 |
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195 | final Image img2 = new Image (display, 48, 48);
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196 | say ("[img2]:");
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197 | final Image img2_copy = drawTwoCircles (img2, true);
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198 |
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199 | final Image img3 = new Image (display, imgData);
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200 | say ("[img3]:");
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201 | drawTwoCircles (img3, false);
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202 | final Image img3_copy = new Image (display, img3.getImageData ());
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203 |
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204 | // RGB[] rgbs = new RGB [16];
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205 | // for (int i = 0; i < rgbs.length; i++) rgbs [i] = imgData.palette.colors[i];
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206 | // rgbs [0] = rgbs [2];
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207 | PaletteData palData = new PaletteData (new RGB[] {
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208 | new RGB (100, 100, 100),
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209 | new RGB (222, 0, 0),
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210 | new RGB (50, 50, 50),
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211 | });
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212 | final Image img4 = new Image (display,
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213 | // new ImageData (48, 48, 4, new PaletteData (rgbs)));
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214 | new ImageData (48, 48, 4, palData));
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215 | say ("[img4]:");
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216 | drawTwoCircles (img4, false);
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217 | final Image img4_copy = new Image (display, img4.getImageData ());
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218 |
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219 | for (int y = 0; y < imgData.height; y++) {
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220 | for (int x = 0; x < imgData.width; x++) {
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221 | imgData.setAlpha (x, y, y < imgData.height / 3 ? 128 : 255);
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222 | }
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223 | }
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224 | final Image img1_alpha = new Image (display, imgData);
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225 | final Image img1_alpha2 = new Image (display,
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226 | imageDir + "icon48_full.alpha.png");
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227 |
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228 | final Image img5 = new Image (display, imageDir + "img01.1.tr-b.gif");
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229 | final Image img6 = new Image (display, imageDir + "img01.1.tr-f.gif");
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230 | final Image img7 = new Image (display, imageDir + "img01.24.tr.png");
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231 | say ("img01.1.tr-b.gif: transparent (before) = " + img5.getBackground());
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232 | say ("img01.1.tr-f.gif: transparent (before) = " + img6.getBackground());
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233 | say ("img01.24.tr.png: transparent (before) = " + img7.getBackground());
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234 | {
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235 | Color clr = new Color (display, new RGB (128, 128, 128));
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236 | img5.setBackground (clr);
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237 | img6.setBackground (clr);
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238 | img7.setBackground (clr);
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239 | clr.dispose();
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240 | }
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241 | say ("img01.1.tr-b.gif: transparent (after) = " + img5.getBackground());
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242 | say ("img01.1.tr-f.gif: transparent (after) = " + img6.getBackground());
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243 | say ("img01.24.tr.png: transparent (after) = " + img7.getBackground());
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244 |
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245 | final ArrayList images = new ArrayList ();
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246 | final String[] imgFiles = {
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247 | imageDir + "img01.24.bmp",
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248 | imageDir + "img01.24.jpg",
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249 | imageDir + "img01.24.png",
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250 | imageDir + "img01.8.bmp",
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251 | imageDir + "img01.8.gif",
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252 | imageDir + "img01.8.png",
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253 | imageDir + "img01.gray.bmp",
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254 | imageDir + "img01.gray.gif",
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255 | imageDir + "img01.gray.png",
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256 | imageDir + "img01.4.bmp",
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257 | imageDir + "img01.4.gif",
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258 | imageDir + "img01.4.png",
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259 | imageDir + "img01.1.bmp",
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260 | imageDir + "img01.1.gif",
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261 | imageDir + "img01.1.png"
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262 | };
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263 | for (int i = 0; i < imgFiles.length; i ++) {
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264 | Image img = new Image (display, imgFiles[i]);
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265 | images.add (img);
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266 | String name = imgFiles [i];
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267 | name = "out-" + name.substring (imageDir.length());
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268 | saveImage (img, name);
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269 | }
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270 |
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271 | final Image ico1 = new Image (display, imageDir + "test.ico");
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272 | final Image ico1_copy = new Image (display, ico1.getImageData());
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273 | final Image ico2 = new Image (display, imageDir + "test_bw.ico");
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274 | final Image ico2_copy = new Image (display, ico2.getImageData());
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275 | ImageLoader il = new ImageLoader ();
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276 | ImageData[] iconData = il.load (imageDir + "eclipse.ico");
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277 | final Image[] icons = new Image[iconData.length];
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278 | for (int i = 0; i < iconData.length; i++) {
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279 | icons[i] = new Image (display, iconData[i]);
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280 | }
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281 |
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282 | final Image img5_copy = new Image (display, img5, SWT.IMAGE_COPY);
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283 | final Image img6_copy = new Image (
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284 | display, (Image) images.get (4), SWT.IMAGE_COPY);
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285 | final Image img7_copy = new Image (display, img7, SWT.IMAGE_COPY);
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286 | final Image img5_dis = new Image (display, img5, SWT.IMAGE_DISABLE);
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287 | final Image img6_dis = new Image (
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288 | display, (Image) images.get (4), SWT.IMAGE_DISABLE);
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289 | final Image img7_dis = new Image (display, img7, SWT.IMAGE_DISABLE);
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290 | final Image img5_gray = new Image (display, img5, SWT.IMAGE_GRAY);
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291 | final Image img6_gray = new Image (
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292 | display, (Image) images.get (4), SWT.IMAGE_GRAY);
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293 | final Image img7_gray = new Image (display, img7, SWT.IMAGE_GRAY);
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294 |
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295 | final Image ico1_copy2 = new Image (display, ico1, SWT.IMAGE_COPY);
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296 | final Image ico2_copy2 = new Image (display, ico2, SWT.IMAGE_COPY);
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297 | final Image ico3_copy2 = new Image (
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298 | display, icons [icons.length - 3], SWT.IMAGE_COPY);
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299 | final Image ico1_dis = new Image (display, ico1, SWT.IMAGE_DISABLE);
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300 | final Image ico2_dis = new Image (display, ico2, SWT.IMAGE_DISABLE);
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301 | final Image ico3_dis = new Image (
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302 | display, icons [icons.length - 3], SWT.IMAGE_DISABLE);
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303 | final Image ico1_gray = new Image (display, ico1, SWT.IMAGE_GRAY);
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304 | final Image ico2_gray = new Image (display, ico2, SWT.IMAGE_GRAY);
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305 | final Image ico3_gray = new Image (
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306 | display, icons [icons.length - 3], SWT.IMAGE_GRAY);
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307 |
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308 | final Image ico1_indirect;
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309 | final Image ico2_indirect;
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310 | {
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311 | ImageData data = new ImageData (
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312 | 48, 48, 1, new PaletteData (new RGB[] {
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313 | new RGB (0, 0, 0), new RGB (255, 255, 255)
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314 | })
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315 | );
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316 | Image mask = new Image (display, data);
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317 | GC gc = new GC (mask);
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318 | gc.setForeground(gc.getBackground());
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319 | gc.fillOval (6, 5, 40, 40);
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320 | gc.dispose ();
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321 | data = img1.getImageData();
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322 | ico1_indirect = new Image (display, data, mask.getImageData());
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323 | data = img1_alpha2.getImageData();
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324 | ico2_indirect = new Image (display, data, mask.getImageData());
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325 | mask.dispose();
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326 | }
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327 |
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328 | shell.addDisposeListener (new DisposeListener () {
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329 | public void widgetDisposed (DisposeEvent e) {
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330 | if (background != null) background.dispose();
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331 | img1.dispose();
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332 | img1_copy.dispose();
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333 | img2.dispose();
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334 | img2_copy.dispose();
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335 | img3.dispose();
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336 | img3_copy.dispose();
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337 | img4.dispose();
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338 | img4_copy.dispose();
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339 | img1_alpha.dispose();
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340 | img1_alpha2.dispose();
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341 | img5.dispose();
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342 | img6.dispose();
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343 | img7.dispose();
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344 | ico1.dispose();
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345 | ico2.dispose();
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346 | ico1_copy.dispose();
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347 | ico2_copy.dispose();
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348 | Iterator it = images.iterator();
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349 | while (it.hasNext ()) ((Image)it.next()).dispose();
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350 | for (int i = 0; i < icons.length; i++) icons [i].dispose();
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351 | img5_copy.dispose();
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352 | img6_copy.dispose();
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353 | img7_copy.dispose();
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354 | img5_dis.dispose();
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355 | img6_dis.dispose();
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356 | img7_dis.dispose();
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357 | img5_gray.dispose();
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358 | img6_gray.dispose();
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359 | img7_gray.dispose();
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360 | ico1_copy2.dispose();
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361 | ico2_copy2.dispose();
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362 | ico3_copy2.dispose();
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363 | ico1_dis.dispose();
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364 | ico2_dis.dispose();
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365 | ico3_dis.dispose();
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366 | ico1_gray.dispose();
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367 | ico2_gray.dispose();
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368 | ico3_gray.dispose();
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369 | ico1_indirect.dispose();
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370 | ico2_indirect.dispose();
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371 | }
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372 | });
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373 |
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374 | shell.addPaintListener(new PaintListener () {
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375 | public void paintControl(PaintEvent event) {
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376 | GC gc = event.gc;
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377 |
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378 | Rectangle r = new Rectangle (event.x, event.y, event.width, event.height);
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379 | gc.setClipping (r);
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380 | drawGrid (gc,
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381 | (r.x / 20) * 20, (r.y / 20) * 20,
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382 | r.width + 20, r.height + 20, 10);
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383 |
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384 | switch (page) {
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385 | case 0:
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386 | drawImgPieces (gc, img1, 10, 10, 10, 0, 0, 24, 24);
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387 | gc.setXORMode (true);
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388 | drawImgPieces (gc, img1, 10, 80, 10, 0, 0, 24, 24);
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389 | gc.setXORMode (false);
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390 | drawImgPieces (gc, img2, 10, 150, 10, 0, 0, 24, 24);
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391 | gc.setXORMode (true);
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392 | drawImgPieces (gc, img2, 10, 220, 10, 0, 0, 24, 24);
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393 | gc.setXORMode (false);
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394 | drawImgPieces (gc, img3, 10, 290, 10, 0, 0, 24, 24);
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395 | gc.setXORMode (true);
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396 | drawImgPieces (gc, img3, 10, 360, 10, 0, 0, 24, 24);
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397 | gc.setXORMode (false);
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398 | drawImgPieces (gc, img4, 10, 430, 10, 0, 0, 24, 24);
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399 | gc.setXORMode (true);
|
---|
400 | drawImgPieces (gc, img4, 10, 500, 10, 0, 0, 24, 24);
|
---|
401 | gc.setXORMode (false);
|
---|
402 | gc.drawImage (img1_copy, 480, 10);
|
---|
403 | gc.drawImage (img2_copy, 480, 150);
|
---|
404 | gc.drawImage (img3_copy, 480, 290);
|
---|
405 | gc.drawImage (img4_copy, 480, 430);
|
---|
406 | break;
|
---|
407 | case 1:
|
---|
408 | for (int i = 0; i < images.size (); i++) {
|
---|
409 | Image img = (Image)images.get (i);
|
---|
410 | gc.drawImage (img, 10 + (i % 3) * 260, 10 + (i / 3) * 120);
|
---|
411 | }
|
---|
412 | break;
|
---|
413 | case 2:
|
---|
414 | drawImgPieces (gc, img5, 10, 10, 10, 0, 40, 40, 40);
|
---|
415 | drawImgPieces (gc, img6, 10, 130, 10, 0, 40, 40, 40);
|
---|
416 | drawImgPieces (gc, img7, 10, 250, 10, 0, 40, 40, 40);
|
---|
417 | break;
|
---|
418 | case 3:
|
---|
419 | drawImgPieces (gc, img1_alpha, 10, 10, 10, 0, 0, 24, 24);
|
---|
420 | drawImgPieces (gc, img1_alpha2, 10, 80, 10, 0, 0, 24, 24);
|
---|
421 | break;
|
---|
422 | case 4:
|
---|
423 | gc.fillGradientRectangle (10, 10, 200, 40, false);
|
---|
424 | gc.fillGradientRectangle (210, 60, -200, 40, false);
|
---|
425 | gc.fillGradientRectangle (10, 110, 40, 200, true);
|
---|
426 | gc.fillGradientRectangle (60, 310, 40, -200, true);
|
---|
427 | break;
|
---|
428 | case 5:
|
---|
429 | drawImgPieces (gc, ico1, 10, 10, 10, 0, 0, 24, 24);
|
---|
430 | gc.drawImage (ico1_copy, 480, 10);
|
---|
431 | drawImgPieces (gc, ico2, 10, 70, 10, 0, 0, 24, 24);
|
---|
432 | gc.drawImage (ico2_copy, 480, 70);
|
---|
433 | int h = 130;
|
---|
434 | for (int i = 0; i < icons.length; i++) {
|
---|
435 | Rectangle ib = icons[i].getBounds();
|
---|
436 | drawImgPieces (gc, icons[i], 10, h, 10, 0, 0,
|
---|
437 | ib.width / 2, ib.height / 2);
|
---|
438 | h += 10 + ib.height;
|
---|
439 | }
|
---|
440 | drawImgPieces (gc, ico1_indirect, 10, 400, 10, 0, 0, 24, 24);
|
---|
441 | drawImgPieces (gc, ico2_indirect, 10, 460, 10, 0, 0, 24, 24);
|
---|
442 | break;
|
---|
443 | case 6:
|
---|
444 | gc.drawImage (img5_copy, 10, 10);
|
---|
445 | gc.drawImage (img6_copy, 10, 130);
|
---|
446 | gc.drawImage (img7_copy, 10, 250);
|
---|
447 | gc.drawImage (img5_dis, 270, 10);
|
---|
448 | gc.drawImage (img6_dis, 270, 130);
|
---|
449 | gc.drawImage (img7_dis, 270, 250);
|
---|
450 | gc.drawImage (img5_gray, 530, 10);
|
---|
451 | gc.drawImage (img6_gray, 530, 130);
|
---|
452 | gc.drawImage (img7_gray, 530, 250);
|
---|
453 | gc.drawImage (ico1_copy2, 10, 380);
|
---|
454 | gc.drawImage (ico2_copy2, 10, 430);
|
---|
455 | gc.drawImage (ico3_copy2, 10, 480);
|
---|
456 | gc.drawImage (ico1_dis, 270, 380);
|
---|
457 | gc.drawImage (ico2_dis, 270, 430);
|
---|
458 | gc.drawImage (ico3_dis, 270, 480);
|
---|
459 | gc.drawImage (ico1_gray, 530, 380);
|
---|
460 | gc.drawImage (ico2_gray, 530, 430);
|
---|
461 | gc.drawImage (ico3_gray, 530, 480);
|
---|
462 | break;
|
---|
463 | }
|
---|
464 | }
|
---|
465 | });
|
---|
466 |
|
---|
467 | next = new Button (shell, SWT.PUSH);
|
---|
468 | next.setText ("Next >");
|
---|
469 | next.addSelectionListener (new SelectionAdapter () {
|
---|
470 | String title;
|
---|
471 | public void widgetSelected (SelectionEvent e) {
|
---|
472 | ++page;
|
---|
473 | if (page <= LAST_PAGE)
|
---|
474 | updateTitleAndButton();
|
---|
475 | else
|
---|
476 | shell.close();
|
---|
477 | }
|
---|
478 | });
|
---|
479 | updateTitleAndButton();
|
---|
480 |
|
---|
481 | Button checks = new Button (shell, SWT.CHECK);
|
---|
482 | checks.setText ("Checkers");
|
---|
483 | checks.setSelection (drawCheckers);
|
---|
484 | checks.addSelectionListener (new SelectionAdapter () {
|
---|
485 | String title;
|
---|
486 | public void widgetSelected (SelectionEvent e) {
|
---|
487 | drawCheckers = ((Button)e.widget).getSelection ();
|
---|
488 | shell.redraw();
|
---|
489 | }
|
---|
490 | });
|
---|
491 |
|
---|
492 | FormData fdata = new FormData();
|
---|
493 | fdata.right = new FormAttachment (100, -10);
|
---|
494 | fdata.bottom = new FormAttachment (100, -10);
|
---|
495 | next.setLayoutData (fdata);
|
---|
496 | fdata = new FormData();
|
---|
497 | fdata.left = new FormAttachment (0, 10);
|
---|
498 | fdata.bottom = new FormAttachment (100, -10);
|
---|
499 | checks.setLayoutData (fdata);
|
---|
500 | FormLayout formLayout = new FormLayout ();
|
---|
501 | shell.setLayout (formLayout);
|
---|
502 |
|
---|
503 | // Rectangle dr = display.getBounds ();
|
---|
504 | // Rectangle sr = shell.getBounds ();
|
---|
505 | Rectangle dr = display.getClientArea ();
|
---|
506 | Rectangle sr = new Rectangle (0, 0, 880, 680);
|
---|
507 | sr.x = (dr.width-sr.width)/2;
|
---|
508 | sr.y = (dr.height-sr.height)/2;
|
---|
509 | shell.setBounds (sr);
|
---|
510 | // shell.setMaximized (true);
|
---|
511 | return shell;
|
---|
512 | }
|
---|
513 |
|
---|
514 | Image drawTwoCircles (Image img, boolean returnInUseCopy) {
|
---|
515 | Image img_copy = null;
|
---|
516 | Color clr = new Color (display, 255, 0, 0);
|
---|
517 | GC gc = new GC (img);
|
---|
518 | System.out.println("gc bg (before) = " + gc.getBackground ());
|
---|
519 | System.out.println("gc fg (before) = " + gc.getForeground ());
|
---|
520 | gc.drawOval (0, 0, 40, 40);
|
---|
521 | gc.setForeground (clr);
|
---|
522 | System.out.println("gc fg (after) = " + gc.getForeground ());
|
---|
523 | gc.drawOval (5, 5, 40, 40);
|
---|
524 | if (returnInUseCopy) {
|
---|
525 | img_copy = new Image (display, img.getImageData ());
|
---|
526 | }
|
---|
527 | gc.dispose ();
|
---|
528 | clr.dispose ();
|
---|
529 | return img_copy;
|
---|
530 | }
|
---|
531 |
|
---|
532 | void drawImgPieces (GC gc, Image img,
|
---|
533 | int x0, int y0, int gap, int xp, int yp, int wp, int hp) {
|
---|
534 | Rectangle bounds = img.getBounds ();
|
---|
535 | int w0 = bounds.width;
|
---|
536 | int h0 = bounds.height;
|
---|
537 | gc.drawImage (img, x0, y0);
|
---|
538 | gc.drawFocus (x0 + xp, y0 + yp, wp, hp);
|
---|
539 | int w = w0, h, last = x0;
|
---|
540 | for (int i = 0; i < 9; i++) {
|
---|
541 | last += w + gap;
|
---|
542 | last += (gap - (last % gap));
|
---|
543 | int wb = i % 3;
|
---|
544 | int hb = i / 3;
|
---|
545 | if (wb == 0) w = wp / 2;
|
---|
546 | else if (wb == 1) w = wp;
|
---|
547 | else w = wp * 2;
|
---|
548 | if (hb == 0) h = hp / 2;
|
---|
549 | else if (hb == 1) h = hp;
|
---|
550 | else h = hp * 2;
|
---|
551 | gc.drawImage (img, xp, yp, wp, hp, last, y0, w, h);
|
---|
552 | }
|
---|
553 | }
|
---|
554 |
|
---|
555 | void drawGrid (GC gc, int x0, int y0, int width, int height, int step) {
|
---|
556 | if (drawCheckers) {
|
---|
557 | if (background == null) {
|
---|
558 | int w = 20, h = 20;
|
---|
559 | Display display = Display.getDefault();
|
---|
560 | background = new Image (display, w, h);
|
---|
561 | GC bgc = new GC (background);
|
---|
562 | Color c1 = new Color (display, 255, 255, 255);
|
---|
563 | Color c2 = new Color (display, 192, 192, 192);
|
---|
564 | bgc.setBackground (c1);
|
---|
565 | bgc.fillRectangle(0, 0, 10, 10);
|
---|
566 | bgc.fillRectangle(10, 10, 10, 10);
|
---|
567 | bgc.setBackground (c2);
|
---|
568 | bgc.fillRectangle(10, 0, 10, 10);
|
---|
569 | bgc.fillRectangle(0, 10, 10, 10);
|
---|
570 | c1.dispose();
|
---|
571 | c2.dispose();
|
---|
572 | bgc.dispose();
|
---|
573 | }
|
---|
574 | Rectangle r = background.getBounds();
|
---|
575 | for (int y = 0; y <= height; y += r.height)
|
---|
576 | for (int x = 0; x <= width; x += r.width)
|
---|
577 | gc.drawImage (background, x0 + x, y0 + y);
|
---|
578 | } else {
|
---|
579 | int i;
|
---|
580 | for (i = 0; i <= width/step; i++)
|
---|
581 | gc.drawLine (x0+i*step, y0, x0+i*step, y0+height);
|
---|
582 | for (i = 0; i <= height/step; i++)
|
---|
583 | gc.drawLine (x0, y0+i*step, x0+width, y0+i*step);
|
---|
584 | }
|
---|
585 | }
|
---|
586 |
|
---|
587 | void updateTitleAndButton () {
|
---|
588 | if (page <= LAST_PAGE) {
|
---|
589 | if (page == LAST_PAGE)
|
---|
590 | next.setText ("Finish");
|
---|
591 | shell.redraw ();
|
---|
592 | }
|
---|
593 | shell.setText (getName() + ": " + Title + " [page #" + page + "]");
|
---|
594 | }
|
---|
595 |
|
---|
596 | void saveImage (Image image, String baseName) {
|
---|
597 | ImageLoader il = new ImageLoader();
|
---|
598 | ImageData id = image.getImageData();
|
---|
599 | il.data = new ImageData[] {id};
|
---|
600 | // String name = baseName + "." + id.depth + ".";
|
---|
601 | // if (id.transparentPixel != -1 || id.maskData != null) name += "tr.";
|
---|
602 | // if (id.alpha != -1 || id.alphaData != null) name += "alpha.";
|
---|
603 | // name += "bmp";
|
---|
604 | String name = baseName + ".bmp";
|
---|
605 | il.save (name, SWT.IMAGE_BMP);
|
---|
606 | }
|
---|
607 |
|
---|
608 | }
|
---|
609 |
|
---|