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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2008 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.swt.graphics.GC;
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14
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15 import org.eclipse.swt.graphics.Image;
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16
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17
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18 import org.eclipse.swt.SWT;
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19 import org.eclipse.swt.SWTException;
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20 import org.eclipse.swt.SWTError;
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21 import org.eclipse.swt.graphics.Color;
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22 import org.eclipse.swt.graphics.Drawable;
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23 import org.eclipse.swt.graphics.Resource;
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24 import org.eclipse.swt.graphics.Device;
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25 import org.eclipse.swt.graphics.Font;
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26 import org.eclipse.swt.graphics.FontMetrics;
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27 import org.eclipse.swt.graphics.GCData;
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28 import org.eclipse.swt.graphics.Image;
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29 import org.eclipse.swt.graphics.ImageData;
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30 import org.eclipse.swt.graphics.Path;
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31 import org.eclipse.swt.graphics.Pattern;
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32 import org.eclipse.swt.graphics.Point;
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33 import org.eclipse.swt.graphics.RGB;
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34 import org.eclipse.swt.graphics.Rectangle;
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35 import org.eclipse.swt.graphics.Region;
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36 import org.eclipse.swt.graphics.Resource;
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37 import org.eclipse.swt.graphics.Transform;
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38 import org.eclipse.swt.graphics.LineAttributes;
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39
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40 import org.eclipse.swt.internal.gtk.OS;
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41 import org.eclipse.swt.internal.cairo.Cairo;
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42 import org.eclipse.swt.internal.Converter;
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43 import org.eclipse.swt.internal.Compatibility;
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44 import java.lang.all;
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45
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46 import tango.text.convert.Format;
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47 import tango.stdc.string;
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48
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49
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50 /**
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51 * Class <code>GC</code> is where all of the drawing capabilities that are
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52 * supported by SWT are located. Instances are used to draw on either an
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53 * <code>Image</code>, a <code>Control</code>, or directly on a <code>Display</code>.
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54 * <dl>
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55 * <dt><b>Styles:</b></dt>
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56 * <dd>LEFT_TO_RIGHT, RIGHT_TO_LEFT</dd>
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57 * </dl>
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58 *
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59 * <p>
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60 * The SWT drawing coordinate system is the two-dimensional space with the origin
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61 * (0,0) at the top left corner of the drawing area and with (x,y) values increasing
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62 * to the right and downward respectively.
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63 * </p>
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64 *
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65 * <p>
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66 * Application code must explicitly invoke the <code>GC.dispose()</code>
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67 * method to release the operating system resources managed by each instance
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68 * when those instances are no longer required. This is <em>particularly</em>
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69 * important on Windows95 and Windows98 where the operating system has a limited
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70 * number of device contexts available.
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71 * </p>
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72 *
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73 * <p>
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74 * Note: Only one of LEFT_TO_RIGHT and RIGHT_TO_LEFT may be specified.
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75 * </p>
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76 *
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77 * @see org.eclipse.swt.events.PaintEvent
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78 * @see <a href="http://www.eclipse.org/swt/snippets/#gc">GC snippets</a>
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79 * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Examples: GraphicsExample, PaintExample</a>
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80 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
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81 */
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82 public final class GC : Resource {
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83
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84 alias Resource.init_ init_;
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85
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86 /**
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87 * the handle to the OS device context
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88 * (Warning: This field is platform dependent)
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89 * <p>
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90 * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT
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91 * public API. It is marked public only so that it can be shared
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92 * within the packages provided by SWT. It is not available on all
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93 * platforms and should never be accessed from application code.
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94 * </p>
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95 */
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96 public GdkGC* handle;
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97
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98 Drawable drawable;
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99 GCData data;
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100
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101 const static int FOREGROUND = 1 << 0;
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102 const static int BACKGROUND = 1 << 1;
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103 const static int FONT = 1 << 2;
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104 const static int LINE_STYLE = 1 << 3;
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105 const static int LINE_CAP = 1 << 4;
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106 const static int LINE_JOIN = 1 << 5;
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107 const static int LINE_WIDTH = 1 << 6;
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108 const static int LINE_MITERLIMIT = 1 << 7;
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109 const static int BACKGROUND_BG = 1 << 8;
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110 const static int DRAW_OFFSET = 1 << 9;
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111 const static int DRAW = FOREGROUND | LINE_WIDTH | LINE_STYLE | LINE_CAP | LINE_JOIN | LINE_MITERLIMIT | DRAW_OFFSET;
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112 const static int FILL = BACKGROUND;
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113
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114 static const float[] LINE_DOT = [1, 1];
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115 static const float[] LINE_DASH = [3, 1];
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116 static const float[] LINE_DASHDOT = [3, 1, 1, 1];
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117 static const float[] LINE_DASHDOTDOT = [3, 1, 1, 1, 1, 1];
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118 static const float[] LINE_DOT_ZERO = [3, 3];
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119 static const float[] LINE_DASH_ZERO = [18, 6];
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120 static const float[] LINE_DASHDOT_ZERO = [9, 6, 3, 6];
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121 static const float[] LINE_DASHDOTDOT_ZERO = [9, 3, 3, 3, 3, 3];
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122
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123 this() {
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124 }
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125
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126 /**
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127 * Constructs a new instance of this class which has been
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128 * configured to draw on the specified drawable. Sets the
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129 * foreground color, background color and font in the GC
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130 * to match those in the drawable.
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131 * <p>
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132 * You must dispose the graphics context when it is no longer required.
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133 * </p>
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134 * @param drawable the drawable to draw on
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135 * @exception IllegalArgumentException <ul>
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136 * <li>ERROR_NULL_ARGUMENT - if the drawable is null</li>
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137 * <li>ERROR_NULL_ARGUMENT - if there is no current device</li>
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138 * <li>ERROR_INVALID_ARGUMENT
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139 * - if the drawable is an image that is not a bitmap or an icon
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140 * - if the drawable is an image or printer that is already selected
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141 * into another graphics context</li>
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142 * </ul>
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143 * @exception SWTError <ul>
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144 * <li>ERROR_NO_HANDLES if a handle could not be obtained for GC creation</li>
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145 * <li>ERROR_THREAD_INVALID_ACCESS if not called from the thread that created the drawable</li>
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146 * </ul>
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147 */
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148 public this(Drawable drawable) {
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149 this(drawable, 0);
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150 }
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151
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152 /**
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153 * Constructs a new instance of this class which has been
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154 * configured to draw on the specified drawable. Sets the
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155 * foreground color, background color and font in the GC
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156 * to match those in the drawable.
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157 * <p>
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158 * You must dispose the graphics context when it is no longer required.
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159 * </p>
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160 *
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161 * @param drawable the drawable to draw on
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162 * @param style the style of GC to construct
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163 *
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164 * @exception IllegalArgumentException <ul>
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165 * <li>ERROR_NULL_ARGUMENT - if the drawable is null</li>
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166 * <li>ERROR_NULL_ARGUMENT - if there is no current device</li>
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167 * <li>ERROR_INVALID_ARGUMENT
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168 * - if the drawable is an image that is not a bitmap or an icon
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169 * - if the drawable is an image or printer that is already selected
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170 * into another graphics context</li>
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171 * </ul>
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172 * @exception SWTError <ul>
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173 * <li>ERROR_NO_HANDLES if a handle could not be obtained for GC creation</li>
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174 * <li>ERROR_THREAD_INVALID_ACCESS if not called from the thread that created the drawable</li>
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175 * </ul>
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176 *
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177 * @since 2.1.2
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178 */
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179 public this(Drawable drawable, int style) {
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180 if (drawable is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
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181 GCData data = new GCData();
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182 data.style = checkStyle(style);
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183 auto gdkGC = drawable.internal_new_GC(data);
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184 Device device = data.device;
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185 if (device is null) device = Device.getDevice();
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186 if (device is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
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187 this.device = data.device = device;
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188 init_(drawable, data, gdkGC);
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189 init_();
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190 }
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191
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192 static void addCairoString(cairo_t* cairo, String str, float x, float y, Font font) {
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193 char* buffer = toStringz( str );
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194 if (OS.GTK_VERSION >= OS.buildVERSION(2, 8, 0)) {
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195 auto layout = OS.pango_cairo_create_layout(cairo);
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196 if (layout is null) SWT.error(SWT.ERROR_NO_HANDLES);
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197 OS.pango_layout_set_text(layout, buffer, -1);
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198 OS.pango_layout_set_font_description(layout, font.handle);
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199 double currentX, currentY;
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200 Cairo.cairo_get_current_point(cairo, ¤tX, ¤tY);
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201 if (currentX !is x || currentY !is y) {
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202 Cairo.cairo_move_to(cairo, x, y);
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203 }
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204 OS.pango_cairo_layout_path(cairo, layout);
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205 OS.g_object_unref(layout);
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206 } else {
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207 GC.setCairoFont(cairo, font);
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208 cairo_font_extents_t* extents = new cairo_font_extents_t();
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209 Cairo.cairo_font_extents(cairo, extents);
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210 double baseline = y + extents.ascent;
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211 Cairo.cairo_move_to(cairo, x, baseline);
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212 Cairo.cairo_text_path(cairo, buffer);
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213 }
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214 }
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215
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216 static int checkStyle (int style) {
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217 if ((style & SWT.LEFT_TO_RIGHT) !is 0) style &= ~SWT.RIGHT_TO_LEFT;
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218 return style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT);
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219 }
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220
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221 public static GC gtk_new(GdkGC* handle, GCData data) {
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222 GC gc = new GC();
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223 gc.device = data.device;
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224 gc.init_(null, data, handle);
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225 return gc;
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226 }
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227
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228 public static GC gtk_new(Drawable drawable, GCData data) {
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229 GC gc = new GC();
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230 auto gdkGC = drawable.internal_new_GC(data);
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231 gc.device = data.device;
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232 gc.init_(drawable, data, gdkGC);
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233 return gc;
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234 }
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235
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236 void checkGC (int mask) {
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237 int state = data.state;
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238 if ((state & mask) is mask) return;
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239 state = (state ^ mask) & mask;
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240 data.state |= mask;
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241 auto cairo = data.cairo;
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242 if (cairo !is null) {
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243 if ((state & (BACKGROUND | FOREGROUND)) !is 0) {
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244 GdkColor* color;
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245 Pattern pattern;
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246 if ((state & FOREGROUND) !is 0) {
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247 color = data.foreground;
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248 pattern = data.foregroundPattern;
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249 data.state &= ~BACKGROUND;
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250 } else {
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251 color = data.background;
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252 pattern = data.backgroundPattern;
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253 data.state &= ~FOREGROUND;
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254 }
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255 if (pattern !is null) {
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256 if ((data.style & SWT.MIRRORED) !is 0 && pattern.surface !is null) {
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257 auto newPattern = Cairo.cairo_pattern_create_for_surface(pattern.surface);
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258 if (newPattern is null) SWT.error(SWT.ERROR_NO_HANDLES);
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259 Cairo.cairo_pattern_set_extend(newPattern, Cairo.CAIRO_EXTEND_REPEAT);
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260 double[6] matrix; matrix[0] = -1; matrix[1] = 0; matrix[2] = 0; matrix[3] = 1; matrix[4] = 0; matrix[5] = 0;
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261 Cairo.cairo_pattern_set_matrix(newPattern, cast(cairo_matrix_t*) matrix.ptr);
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262 Cairo.cairo_set_source(cairo, newPattern);
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263 Cairo.cairo_pattern_destroy(newPattern);
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264 } else {
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265 Cairo.cairo_set_source(cairo, pattern.handle);
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266 }
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267 } else {
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268 Cairo.cairo_set_source_rgba(cairo, (color.red & 0xFFFF) / cast(float)0xFFFF, (color.green & 0xFFFF) / cast(float)0xFFFF, (color.blue & 0xFFFF) / cast(float)0xFFFF, data.alpha / cast(float)0xFF);
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269 }
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270 }
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271 if ((state & FONT) !is 0) {
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272 if (data.layout !is null) {
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273 Font font = data.font;
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274 OS.pango_layout_set_font_description(data.layout, font.handle);
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275 }
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276 if (OS.GTK_VERSION < OS.buildVERSION(2, 8, 0)) {
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277 setCairoFont(cairo, data.font);
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278 }
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279 }
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280 if ((state & LINE_CAP) !is 0) {
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281 int cap_style = 0;
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282 switch (data.lineCap) {
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283 case SWT.CAP_ROUND: cap_style = Cairo.CAIRO_LINE_CAP_ROUND; break;
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284 case SWT.CAP_FLAT: cap_style = Cairo.CAIRO_LINE_CAP_BUTT; break;
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285 case SWT.CAP_SQUARE: cap_style = Cairo.CAIRO_LINE_CAP_SQUARE; break;
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286 default:
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287 }
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288 Cairo.cairo_set_line_cap(cairo, cap_style);
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289 }
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290 if ((state & LINE_JOIN) !is 0) {
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291 int join_style = 0;
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292 switch (data.lineJoin) {
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293 case SWT.JOIN_MITER: join_style = Cairo.CAIRO_LINE_JOIN_MITER; break;
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294 case SWT.JOIN_ROUND: join_style = Cairo.CAIRO_LINE_JOIN_ROUND; break;
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295 case SWT.JOIN_BEVEL: join_style = Cairo.CAIRO_LINE_JOIN_BEVEL; break;
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296 default:
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297 }
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298 Cairo.cairo_set_line_join(cairo, join_style);
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299 }
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300 if ((state & LINE_WIDTH) !is 0) {
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301 Cairo.cairo_set_line_width(cairo, data.lineWidth is 0 ? 1 : data.lineWidth);
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302 switch (data.lineStyle) {
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303 case SWT.LINE_DOT:
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304 case SWT.LINE_DASH:
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305 case SWT.LINE_DASHDOT:
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306 case SWT.LINE_DASHDOTDOT:
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307 state |= LINE_STYLE;
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308 default:
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309 }
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310 }
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311 if ((state & LINE_STYLE) !is 0) {
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312 float dashesOffset = 0;
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313 float[] dashes = null;
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314 float width = data.lineWidth;
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315 switch (data.lineStyle) {
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316 case SWT.LINE_SOLID: break;
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317 case SWT.LINE_DASH: dashes = width !is 0 ? LINE_DASH : LINE_DASH_ZERO; break;
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318 case SWT.LINE_DOT: dashes = width !is 0 ? LINE_DOT : LINE_DOT_ZERO; break;
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319 case SWT.LINE_DASHDOT: dashes = width !is 0 ? LINE_DASHDOT : LINE_DASHDOT_ZERO; break;
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320 case SWT.LINE_DASHDOTDOT: dashes = width !is 0 ? LINE_DASHDOTDOT : LINE_DASHDOTDOT_ZERO; break;
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321 case SWT.LINE_CUSTOM: dashes = data.lineDashes; break;
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322 default:
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323 }
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324 if (dashes !is null) {
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325 dashesOffset = data.lineDashesOffset;
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326 double[] cairoDashes = new double[dashes.length];
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327 for (int i = 0; i < cairoDashes.length; i++) {
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328 cairoDashes[i] = width is 0 || data.lineStyle is SWT.LINE_CUSTOM ? dashes[i] : dashes[i] * width;
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329 }
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330 Cairo.cairo_set_dash(cairo, cairoDashes.ptr, cairoDashes.length, dashesOffset);
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331 } else {
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332 Cairo.cairo_set_dash(cairo, null, 0, 0);
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333 }
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334 }
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335 if ((state & LINE_MITERLIMIT) !is 0) {
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336 Cairo.cairo_set_miter_limit(cairo, data.lineMiterLimit);
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337 }
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338 if ((state & DRAW_OFFSET) !is 0) {
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339 data.cairoXoffset = data.cairoYoffset = 0;
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340 double[] matrix = new double[6];
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341 Cairo.cairo_get_matrix(cairo,cast(cairo_matrix_t*) matrix.ptr);
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342 double dx = 1;
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343 double dy = 1;
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344 Cairo.cairo_user_to_device_distance(cairo, &dx, &dy);
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345 double scaling = dx;
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346 if (scaling < 0) scaling = -scaling;
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347 double strokeWidth = data.lineWidth * scaling;
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348 if (strokeWidth is 0 || (cast(int)strokeWidth % 2) is 1) {
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349 data.cairoXoffset = 0.5 / scaling;
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350 }
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351 scaling = dy;
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352 if (scaling < 0) scaling = -scaling;
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|
353 strokeWidth = data.lineWidth * scaling;
|
|
|
354 if (strokeWidth is 0 || (cast(int)strokeWidth % 2) is 1) {
|
|
|
355 data.cairoYoffset = 0.5 / scaling;
|
|
|
356 }
|
|
|
357 }
|
|
|
358 return;
|
|
|
359 }
|
|
|
360 if ((state & (BACKGROUND | FOREGROUND)) !is 0) {
|
|
|
361 GdkColor* foreground;
|
|
|
362 if ((state & FOREGROUND) !is 0) {
|
|
|
363 foreground = data.foreground;
|
|
|
364 data.state &= ~BACKGROUND;
|
|
|
365 } else {
|
|
|
366 foreground = data.background;
|
|
|
367 data.state &= ~FOREGROUND;
|
|
|
368 }
|
|
|
369 OS.gdk_gc_set_foreground(handle, foreground);
|
|
|
370 }
|
|
|
371 if ((state & BACKGROUND_BG) !is 0) {
|
|
|
372 GdkColor* background = data.background;
|
|
|
373 OS.gdk_gc_set_background(handle, background);
|
|
|
374 }
|
|
|
375 if ((state & FONT) !is 0) {
|
|
|
376 if (data.layout !is null) {
|
|
|
377 Font font = data.font;
|
|
|
378 OS.pango_layout_set_font_description(data.layout, font.handle);
|
|
|
379 }
|
|
|
380 }
|
|
|
381 if ((state & (LINE_CAP | LINE_JOIN | LINE_STYLE | LINE_WIDTH)) !is 0) {
|
|
|
382 int cap_style = 0;
|
|
|
383 int join_style = 0;
|
|
|
384 int width = cast(int)data.lineWidth;
|
|
|
385 int line_style = 0;
|
|
|
386 float[] dashes = null;
|
|
|
387 switch (data.lineCap) {
|
|
|
388 case SWT.CAP_ROUND: cap_style = OS.GDK_CAP_ROUND; break;
|
|
|
389 case SWT.CAP_FLAT: cap_style = OS.GDK_CAP_BUTT; break;
|
|
|
390 case SWT.CAP_SQUARE: cap_style = OS.GDK_CAP_PROJECTING; break;
|
|
|
391 default:
|
|
|
392 }
|
|
|
393 switch (data.lineJoin) {
|
|
|
394 case SWT.JOIN_ROUND: join_style = OS.GDK_JOIN_ROUND; break;
|
|
|
395 case SWT.JOIN_MITER: join_style = OS.GDK_JOIN_MITER; break;
|
|
|
396 case SWT.JOIN_BEVEL: join_style = OS.GDK_JOIN_BEVEL; break;
|
|
|
397 default:
|
|
|
398 }
|
|
|
399 switch (data.lineStyle) {
|
|
|
400 case SWT.LINE_SOLID: break;
|
|
|
401 case SWT.LINE_DASH: dashes = width !is 0 ? LINE_DASH : LINE_DASH_ZERO; break;
|
|
|
402 case SWT.LINE_DOT: dashes = width !is 0 ? LINE_DOT : LINE_DOT_ZERO; break;
|
|
|
403 case SWT.LINE_DASHDOT: dashes = width !is 0 ? LINE_DASHDOT : LINE_DASHDOT_ZERO; break;
|
|
|
404 case SWT.LINE_DASHDOTDOT: dashes = width !is 0 ? LINE_DASHDOTDOT : LINE_DASHDOTDOT_ZERO; break;
|
|
|
405 case SWT.LINE_CUSTOM: dashes = data.lineDashes; break;
|
|
|
406 default:
|
|
|
407 }
|
|
|
408 if (dashes !is null) {
|
|
|
409 if ((state & LINE_STYLE) !is 0) {
|
|
|
410 String dash_list = new char[dashes.length];
|
|
|
411 for (int i = 0; i < dash_list.length; i++) {
|
|
|
412 dash_list[i] = cast(char)(width is 0 || data.lineStyle is SWT.LINE_CUSTOM ? dashes[i] : dashes[i] * width);
|
|
|
413 }
|
|
|
414 OS.gdk_gc_set_dashes(handle, 0, dash_list.ptr, dash_list.length);
|
|
|
415 }
|
|
|
416 line_style = OS.GDK_LINE_ON_OFF_DASH;
|
|
|
417 } else {
|
|
|
418 line_style = OS.GDK_LINE_SOLID;
|
|
|
419 }
|
|
|
420 OS.gdk_gc_set_line_attributes(handle, width, line_style, cap_style, join_style);
|
|
|
421 }
|
|
|
422 }
|
|
|
423
|
|
|
424 GdkRegion* convertRgn(GdkRegion* rgn, double[] matrix) {
|
|
|
425 auto newRgn = OS.gdk_region_new();
|
|
|
426 int nRects;
|
|
|
427 GdkRectangle* rects;
|
|
|
428 OS.gdk_region_get_rectangles(rgn, &rects, &nRects);
|
|
|
429 GdkRectangle* rect;
|
|
|
430 int[8] pointArray;
|
|
|
431 double x, y;
|
|
|
432 for (int i=0; i<nRects; i++) {
|
|
|
433 rect = rects +i;
|
|
|
434 x = rect.x;
|
|
|
435 y = rect.y;
|
|
|
436 Cairo.cairo_matrix_transform_point(cast(cairo_matrix_t*)matrix.ptr, &x, &y);
|
|
|
437 pointArray[0] = cast(int)x;
|
|
|
438 pointArray[1] = cast(int)y;
|
|
|
439 x = rect.x + rect.width;
|
|
|
440 y = rect.y;
|
|
|
441 Cairo.cairo_matrix_transform_point(cast(cairo_matrix_t*)matrix.ptr, &x, &y);
|
|
|
442 pointArray[2] = cast(int)Math.round(x);
|
|
|
443 pointArray[3] = cast(int)y;
|
|
|
444 x = rect.x + rect.width;
|
|
|
445 y = rect.y + rect.height;
|
|
|
446 Cairo.cairo_matrix_transform_point(cast(cairo_matrix_t*)matrix.ptr, &x, &y);
|
|
|
447 pointArray[4] = cast(int)Math.round(x);
|
|
|
448 pointArray[5] = cast(int)Math.round(y);
|
|
|
449 x = rect.x;
|
|
|
450 y = rect.y + rect.height;
|
|
|
451 Cairo.cairo_matrix_transform_point(cast(cairo_matrix_t*)matrix.ptr, &x, &y);
|
|
|
452 pointArray[6] = cast(int)x;
|
|
|
453 pointArray[7] = cast(int)Math.round(y);
|
|
|
454 auto polyRgn = OS.gdk_region_polygon(cast(GdkPoint*)pointArray.ptr, pointArray.length / 2, OS.GDK_EVEN_ODD_RULE);
|
|
|
455 OS.gdk_region_union(newRgn, polyRgn);
|
|
|
456 OS.gdk_region_destroy(polyRgn);
|
|
|
457 }
|
|
|
458 if (rects !is null) OS.g_free(rects);
|
|
|
459 return newRgn;
|
|
|
460 }
|
|
|
461
|
|
|
462 /**
|
|
|
463 * Copies a rectangular area of the receiver at the specified
|
|
|
464 * position into the image, which must be of type <code>SWT.BITMAP</code>.
|
|
|
465 *
|
|
|
466 * @param image the image to copy into
|
|
|
467 * @param x the x coordinate in the receiver of the area to be copied
|
|
|
468 * @param y the y coordinate in the receiver of the area to be copied
|
|
|
469 *
|
|
|
470 * @exception IllegalArgumentException <ul>
|
|
|
471 * <li>ERROR_NULL_ARGUMENT - if the image is null</li>
|
|
|
472 * <li>ERROR_INVALID_ARGUMENT - if the image is not a bitmap or has been disposed</li>
|
|
|
473 * </ul>
|
|
|
474 * @exception SWTException <ul>
|
|
|
475 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
476 * </ul>
|
|
|
477 */
|
|
|
478 public void copyArea(Image image, int x, int y) {
|
|
|
479 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
480 if (image is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
481 if (image.type !is SWT.BITMAP || image.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
482 Rectangle rect = image.getBounds();
|
|
|
483 auto gdkGC = OS.gdk_gc_new(image.pixmap);
|
|
|
484 if (gdkGC is null) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
485 OS.gdk_gc_set_subwindow(gdkGC, OS.GDK_INCLUDE_INFERIORS);
|
|
|
486 OS.gdk_draw_drawable(image.pixmap, gdkGC, data.drawable, x, y, 0, 0, rect.width, rect.height);
|
|
|
487 OS.g_object_unref(gdkGC);
|
|
|
488 }
|
|
|
489
|
|
|
490 /**
|
|
|
491 * Copies a rectangular area of the receiver at the source
|
|
|
492 * position onto the receiver at the destination position.
|
|
|
493 *
|
|
|
494 * @param srcX the x coordinate in the receiver of the area to be copied
|
|
|
495 * @param srcY the y coordinate in the receiver of the area to be copied
|
|
|
496 * @param width the width of the area to copy
|
|
|
497 * @param height the height of the area to copy
|
|
|
498 * @param destX the x coordinate in the receiver of the area to copy to
|
|
|
499 * @param destY the y coordinate in the receiver of the area to copy to
|
|
|
500 *
|
|
|
501 * @exception SWTException <ul>
|
|
|
502 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
503 * </ul>
|
|
|
504 */
|
|
|
505 public void copyArea(int srcX, int srcY, int width, int height, int destX, int destY) {
|
|
|
506 copyArea(srcX, srcY, width, height, destX, destY, true);
|
|
|
507 }
|
|
|
508 /**
|
|
|
509 * Copies a rectangular area of the receiver at the source
|
|
|
510 * position onto the receiver at the destination position.
|
|
|
511 *
|
|
|
512 * @param srcX the x coordinate in the receiver of the area to be copied
|
|
|
513 * @param srcY the y coordinate in the receiver of the area to be copied
|
|
|
514 * @param width the width of the area to copy
|
|
|
515 * @param height the height of the area to copy
|
|
|
516 * @param destX the x coordinate in the receiver of the area to copy to
|
|
|
517 * @param destY the y coordinate in the receiver of the area to copy to
|
|
|
518 * @param paint if <code>true</code> paint events will be generated for old and obscured areas
|
|
|
519 *
|
|
|
520 * @exception SWTException <ul>
|
|
|
521 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
522 * </ul>
|
|
|
523 *
|
|
|
524 * @since 3.1
|
|
|
525 */
|
|
|
526 public void copyArea(int srcX, int srcY, int width, int height, int destX, int destY, bool paint) {
|
|
|
527 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
528 if (width <= 0 || height <= 0) return;
|
|
|
529 int deltaX = destX - srcX, deltaY = destY - srcY;
|
|
|
530 if (deltaX is 0 && deltaY is 0) return;
|
|
|
531 auto drawable = data.drawable;
|
|
|
532 if (data.image is null && paint) OS.gdk_gc_set_exposures(handle, true);
|
|
|
533 OS.gdk_draw_drawable(drawable, handle, drawable, srcX, srcY, destX, destY, width, height);
|
|
|
534 if (data.image is null & paint) {
|
|
|
535 OS.gdk_gc_set_exposures(handle, false);
|
|
|
536 bool disjoint = (destX + width < srcX) || (srcX + width < destX) || (destY + height < srcY) || (srcY + height < destY);
|
|
|
537 GdkRectangle rect;
|
|
|
538 if (disjoint) {
|
|
|
539 rect.x = srcX;
|
|
|
540 rect.y = srcY;
|
|
|
541 rect.width = width;
|
|
|
542 rect.height = height;
|
|
|
543 OS.gdk_window_invalidate_rect (cast(GdkWindow*)drawable, &rect, false);
|
|
|
544 // OS.gdk_window_clear_area_e(drawable, srcX, srcY, width, height);
|
|
|
545 } else {
|
|
|
546 if (deltaX !is 0) {
|
|
|
547 int newX = destX - deltaX;
|
|
|
548 if (deltaX < 0) newX = destX + width;
|
|
|
549 rect.x = newX;
|
|
|
550 rect.y = srcY;
|
|
|
551 rect.width = Math.abs(deltaX);
|
|
|
552 rect.height = height;
|
|
|
553 OS.gdk_window_invalidate_rect (cast(GdkWindow*)drawable, &rect, false);
|
|
|
554 // OS.gdk_window_clear_area_e(drawable, newX, srcY, Math.abs(deltaX), height);
|
|
|
555 }
|
|
|
556 if (deltaY !is 0) {
|
|
|
557 int newY = destY - deltaY;
|
|
|
558 if (deltaY < 0) newY = destY + height;
|
|
|
559 rect.x = srcX;
|
|
|
560 rect.y = newY;
|
|
|
561 rect.width = width;
|
|
|
562 rect.height = Math.abs(deltaY);
|
|
|
563 OS.gdk_window_invalidate_rect (cast(GdkWindow*)drawable, &rect, false);
|
|
|
564 // OS.gdk_window_clear_area_e(drawable, srcX, newY, width, Math.abs(deltaY));
|
|
|
565 }
|
|
|
566 }
|
|
|
567 }
|
|
|
568 }
|
|
|
569
|
|
|
570 void createLayout() {
|
|
|
571 auto context = OS.gdk_pango_context_get();
|
|
|
572 if (context is null) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
573 data.context = context;
|
|
|
574 auto layout = OS.pango_layout_new(context);
|
|
|
575 if (layout is null) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
576 data.layout = layout;
|
|
|
577 OS.pango_context_set_language(context, OS.gtk_get_default_language());
|
|
|
578 OS.pango_context_set_base_dir(context, (data.style & SWT.MIRRORED) !is 0 ? OS.PANGO_DIRECTION_RTL : OS.PANGO_DIRECTION_LTR);
|
|
|
579 OS.gdk_pango_context_set_colormap(context, OS.gdk_colormap_get_system());
|
|
|
580 if (OS.GTK_VERSION >= OS.buildVERSION(2, 4, 0)) {
|
|
|
581 OS.pango_layout_set_auto_dir(layout, false);
|
|
|
582 }
|
|
|
583 }
|
|
|
584
|
|
|
585 void disposeLayout() {
|
|
|
586 data.str = null;
|
|
|
587 if (data.context !is null) OS.g_object_unref(data.context);
|
|
|
588 if (data.layout !is null) OS.g_object_unref(data.layout);
|
|
|
589 data.layout = null;
|
|
|
590 data.context = null;
|
|
|
591 }
|
|
|
592
|
|
|
593 void destroy() {
|
|
|
594 if (data.disposeCairo) {
|
|
|
595 auto cairo = data.cairo;
|
|
|
596 if (cairo !is null) Cairo.cairo_destroy(cairo);
|
|
|
597 data.cairo = null;
|
|
|
598 }
|
|
|
599
|
|
|
600 /* Free resources */
|
|
|
601 auto clipRgn = data.clipRgn;
|
|
|
602 if (clipRgn !is null) OS.gdk_region_destroy(clipRgn);
|
|
|
603 Image image = data.image;
|
|
|
604 if (image !is null) {
|
|
|
605 image.memGC = null;
|
|
|
606 if (image.transparentPixel !is -1) image.createMask();
|
|
|
607 }
|
|
|
608
|
|
|
609 disposeLayout();
|
|
|
610
|
|
|
611 /* Dispose the GC */
|
|
|
612 if (drawable !is null) {
|
|
|
613 drawable.internal_dispose_GC(handle, data);
|
|
|
614 }
|
|
|
615 data.drawable = null;
|
|
|
616 data.clipRgn = null;
|
|
|
617 drawable = null;
|
|
|
618 handle = null;
|
|
|
619 data.image = null;
|
|
|
620 data.str = null;
|
|
|
621 data = null;
|
|
|
622 }
|
|
|
623
|
|
|
624 /**
|
|
|
625 * Draws the outline of a circular or elliptical arc
|
|
|
626 * within the specified rectangular area.
|
|
|
627 * <p>
|
|
|
628 * The resulting arc begins at <code>startAngle</code> and extends
|
|
|
629 * for <code>arcAngle</code> degrees, using the current color.
|
|
|
630 * Angles are interpreted such that 0 degrees is at the 3 o'clock
|
|
|
631 * position. A positive value indicates a counter-clockwise rotation
|
|
|
632 * while a negative value indicates a clockwise rotation.
|
|
|
633 * </p><p>
|
|
|
634 * The center of the arc is the center of the rectangle whose origin
|
|
|
635 * is (<code>x</code>, <code>y</code>) and whose size is specified by the
|
|
|
636 * <code>width</code> and <code>height</code> arguments.
|
|
|
637 * </p><p>
|
|
|
638 * The resulting arc covers an area <code>width + 1</code> pixels wide
|
|
|
639 * by <code>height + 1</code> pixels tall.
|
|
|
640 * </p>
|
|
|
641 *
|
|
|
642 * @param x the x coordinate of the upper-left corner of the arc to be drawn
|
|
|
643 * @param y the y coordinate of the upper-left corner of the arc to be drawn
|
|
|
644 * @param width the width of the arc to be drawn
|
|
|
645 * @param height the height of the arc to be drawn
|
|
|
646 * @param startAngle the beginning angle
|
|
|
647 * @param arcAngle the angular extent of the arc, relative to the start angle
|
|
|
648 *
|
|
|
649 * @exception SWTException <ul>
|
|
|
650 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
651 * </ul>
|
|
|
652 */
|
|
|
653 public void drawArc(int x, int y, int width, int height, int startAngle, int arcAngle) {
|
|
|
654 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
655 checkGC(DRAW);
|
|
|
656 if (width < 0) {
|
|
|
657 x = x + width;
|
|
|
658 width = -width;
|
|
|
659 }
|
|
|
660 if (height < 0) {
|
|
|
661 y = y + height;
|
|
|
662 height = -height;
|
|
|
663 }
|
|
|
664 if (width is 0 || height is 0 || arcAngle is 0) return;
|
|
|
665 auto cairo = data.cairo;
|
|
|
666 if (cairo !is null) {
|
|
|
667 double xOffset = data.cairoXoffset, yOffset = data.cairoYoffset;
|
|
|
668 if (width is height) {
|
|
|
669 if (arcAngle >= 0) {
|
|
|
670 Cairo.cairo_arc_negative(cairo, x + xOffset + width / 2f, y + yOffset + height / 2f, width / 2f, -startAngle * cast(float)Compatibility.PI / 180, -(startAngle + arcAngle) * cast(float)Compatibility.PI / 180);
|
|
|
671 } else {
|
|
|
672 Cairo.cairo_arc(cairo, x + xOffset + width / 2f, y + yOffset + height / 2f, width / 2f, -startAngle * cast(float)Compatibility.PI / 180, -(startAngle + arcAngle) * cast(float)Compatibility.PI / 180);
|
|
|
673 }
|
|
|
674 } else {
|
|
|
675 Cairo.cairo_save(cairo);
|
|
|
676 Cairo.cairo_translate(cairo, x + xOffset + width / 2f, y + yOffset + height / 2f);
|
|
|
677 Cairo.cairo_scale(cairo, width / 2f, height / 2f);
|
|
|
678 if (arcAngle >= 0) {
|
|
|
679 Cairo.cairo_arc_negative(cairo, 0, 0, 1, -startAngle * cast(float)Compatibility.PI / 180, -(startAngle + arcAngle) * cast(float)Compatibility.PI / 180);
|
|
|
680 } else {
|
|
|
681 Cairo.cairo_arc(cairo, 0, 0, 1, -startAngle * cast(float)Compatibility.PI / 180, -(startAngle + arcAngle) * cast(float)Compatibility.PI / 180);
|
|
|
682 }
|
|
|
683 Cairo.cairo_restore(cairo);
|
|
|
684 }
|
|
|
685 Cairo.cairo_stroke(cairo);
|
|
|
686 return;
|
|
|
687 }
|
|
|
688 OS.gdk_draw_arc(data.drawable, handle, 0, x, y, width, height, startAngle * 64, arcAngle * 64);
|
|
|
689 }
|
|
|
690
|
|
|
691 /**
|
|
|
692 * Draws a rectangle, based on the specified arguments, which has
|
|
|
693 * the appearance of the platform's <em>focus rectangle</em> if the
|
|
|
694 * platform supports such a notion, and otherwise draws a simple
|
|
|
695 * rectangle in the receiver's foreground color.
|
|
|
696 *
|
|
|
697 * @param x the x coordinate of the rectangle
|
|
|
698 * @param y the y coordinate of the rectangle
|
|
|
699 * @param width the width of the rectangle
|
|
|
700 * @param height the height of the rectangle
|
|
|
701 *
|
|
|
702 * @exception SWTException <ul>
|
|
|
703 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
704 * </ul>
|
|
|
705 *
|
|
|
706 * @see #drawRectangle(int, int, int, int)
|
|
|
707 */
|
|
|
708 public void drawFocus(int x, int y, int width, int height) {
|
|
|
709 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
710 /*
|
|
|
711 * Feature in GTK. The function gtk_widget_get_default_style()
|
|
|
712 * can't be used here because gtk_paint_focus() uses GCs, which
|
|
|
713 * are not valid in the default style. The fix is to use a style
|
|
|
714 * from a widget.
|
|
|
715 */
|
|
|
716 auto style = OS.gtk_widget_get_style(data.device.shellHandle);
|
|
|
717 auto cairo = data.cairo;
|
|
|
718 if (cairo !is null) {
|
|
|
719 checkGC(FOREGROUND);
|
|
|
720 int lineWidth;
|
|
|
721 OS.gtk_widget_style_get1(data.device.shellHandle, OS.focus_line_width.ptr, &lineWidth );
|
|
|
722 Cairo.cairo_save(cairo);
|
|
|
723 Cairo.cairo_set_line_width(cairo, lineWidth);
|
|
|
724 double[] dashes = [1, 1];
|
|
|
725 double dash_offset = -lineWidth / 2f;
|
|
|
726 while (dash_offset < 0) dash_offset += 2;
|
|
|
727 Cairo.cairo_set_dash(cairo, dashes.ptr, dashes.length, dash_offset);
|
|
|
728 Cairo.cairo_rectangle(cairo, x + lineWidth / 2f, y + lineWidth / 2f, width, height);
|
|
|
729 Cairo.cairo_stroke(cairo);
|
|
|
730 Cairo.cairo_restore(cairo);
|
|
|
731 return;
|
|
|
732 }
|
|
|
733 char dummy;
|
|
|
734 OS.gtk_paint_focus(style,cast(GdkWindow *) data.drawable, OS.GTK_STATE_NORMAL, null, data.device.shellHandle, &dummy, x, y, width, height);
|
|
|
735 }
|
|
|
736
|
|
|
737 /**
|
|
|
738 * Draws the given image in the receiver at the specified
|
|
|
739 * coordinates.
|
|
|
740 *
|
|
|
741 * @param image the image to draw
|
|
|
742 * @param x the x coordinate of where to draw
|
|
|
743 * @param y the y coordinate of where to draw
|
|
|
744 *
|
|
|
745 * @exception IllegalArgumentException <ul>
|
|
|
746 * <li>ERROR_NULL_ARGUMENT - if the image is null</li>
|
|
|
747 * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li>
|
|
|
748 * <li>ERROR_INVALID_ARGUMENT - if the given coordinates are outside the bounds of the image</li>
|
|
|
749 * @exception SWTException <ul>
|
|
|
750 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
751 * </ul>
|
|
|
752 * @exception SWTError <ul>
|
|
|
753 * <li>ERROR_NO_HANDLES - if no handles are available to perform the operation</li>
|
|
|
754 * </ul>
|
|
|
755 */
|
|
|
756 public void drawImage(Image image, int x, int y) {
|
|
|
757 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
758 if (image is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
759 if (image.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
760 drawImage(image, 0, 0, -1, -1, x, y, -1, -1, true);
|
|
|
761 }
|
|
|
762
|
|
|
763 /**
|
|
|
764 * Copies a rectangular area from the source image into a (potentially
|
|
|
765 * different sized) rectangular area in the receiver. If the source
|
|
|
766 * and destination areas are of differing sizes, then the source
|
|
|
767 * area will be stretched or shrunk to fit the destination area
|
|
|
768 * as it is copied. The copy fails if any part of the source rectangle
|
|
|
769 * lies outside the bounds of the source image, or if any of the width
|
|
|
770 * or height arguments are negative.
|
|
|
771 *
|
|
|
772 * @param image the source image
|
|
|
773 * @param srcX the x coordinate in the source image to copy from
|
|
|
774 * @param srcY the y coordinate in the source image to copy from
|
|
|
775 * @param srcWidth the width in pixels to copy from the source
|
|
|
776 * @param srcHeight the height in pixels to copy from the source
|
|
|
777 * @param destX the x coordinate in the destination to copy to
|
|
|
778 * @param destY the y coordinate in the destination to copy to
|
|
|
779 * @param destWidth the width in pixels of the destination rectangle
|
|
|
780 * @param destHeight the height in pixels of the destination rectangle
|
|
|
781 *
|
|
|
782 * @exception IllegalArgumentException <ul>
|
|
|
783 * <li>ERROR_NULL_ARGUMENT - if the image is null</li>
|
|
|
784 * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li>
|
|
|
785 * <li>ERROR_INVALID_ARGUMENT - if any of the width or height arguments are negative.
|
|
|
786 * <li>ERROR_INVALID_ARGUMENT - if the source rectangle is not contained within the bounds of the source image</li>
|
|
|
787 * </ul>
|
|
|
788 * @exception SWTException <ul>
|
|
|
789 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
790 * </ul>
|
|
|
791 * @exception SWTError <ul>
|
|
|
792 * <li>ERROR_NO_HANDLES - if no handles are available to perform the operation</li>
|
|
|
793 * </ul>
|
|
|
794 */
|
|
|
795 public void drawImage(Image image, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight) {
|
|
|
796 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
797 if (srcWidth is 0 || srcHeight is 0 || destWidth is 0 || destHeight is 0) return;
|
|
|
798 if (srcX < 0 || srcY < 0 || srcWidth < 0 || srcHeight < 0 || destWidth < 0 || destHeight < 0) {
|
|
|
799 SWT.error (SWT.ERROR_INVALID_ARGUMENT);
|
|
|
800 }
|
|
|
801 if (image is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
802 if (image.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
803 drawImage(image, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, false);
|
|
|
804 }
|
|
|
805
|
|
|
806 void drawImage(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, bool simple) {
|
|
|
807 int width;
|
|
|
808 int height;
|
|
|
809 OS.gdk_drawable_get_size(srcImage.pixmap, &width, &height);
|
|
|
810 int imgWidth = width;
|
|
|
811 int imgHeight = height;
|
|
|
812 if (simple) {
|
|
|
813 srcWidth = destWidth = imgWidth;
|
|
|
814 srcHeight = destHeight = imgHeight;
|
|
|
815 } else {
|
|
|
816 simple = srcX is 0 && srcY is 0 &&
|
|
|
817 srcWidth is destWidth && destWidth is imgWidth &&
|
|
|
818 srcHeight is destHeight && destHeight is imgHeight;
|
|
|
819 if (srcX + srcWidth > imgWidth || srcY + srcHeight > imgHeight) {
|
|
|
820 SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
821 }
|
|
|
822 }
|
|
|
823 auto cairo = data.cairo;
|
|
|
824 if (cairo !is null) {
|
|
|
825 if (data.alpha !is 0) {
|
|
|
826 srcImage.createSurface();
|
|
|
827 Cairo.cairo_save(cairo);
|
|
|
828 if ((data.style & SWT.MIRRORED) !is 0) {
|
|
|
829 Cairo.cairo_scale(cairo, -1f, 1);
|
|
|
830 Cairo.cairo_translate(cairo, - 2 * destX - destWidth, 0);
|
|
|
831 }
|
|
|
832 Cairo.cairo_rectangle(cairo, destX , destY, destWidth, destHeight);
|
|
|
833 Cairo.cairo_clip(cairo);
|
|
|
834 Cairo.cairo_translate(cairo, destX - srcX, destY - srcY);
|
|
|
835 if (srcWidth !is destWidth || srcHeight !is destHeight) {
|
|
|
836 Cairo.cairo_scale(cairo, destWidth / cast(float)srcWidth, destHeight / cast(float)srcHeight);
|
|
|
837 }
|
|
|
838 int filter = Cairo.CAIRO_FILTER_GOOD;
|
|
|
839 switch (data.interpolation) {
|
|
|
840 case SWT.DEFAULT: filter = Cairo.CAIRO_FILTER_GOOD; break;
|
|
|
841 case SWT.NONE: filter = Cairo.CAIRO_FILTER_NEAREST; break;
|
|
|
842 case SWT.LOW: filter = Cairo.CAIRO_FILTER_FAST; break;
|
|
|
843 case SWT.HIGH: filter = Cairo.CAIRO_FILTER_BEST; break;
|
|
|
844 default:
|
|
|
845 }
|
|
|
846 auto pattern = Cairo.cairo_pattern_create_for_surface(srcImage.surface);
|
|
|
847 if (pattern is null) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
848 if (srcWidth !is destWidth || srcHeight !is destHeight) {
|
|
|
849 /*
|
|
|
850 * Bug in Cairo. When drawing the image streched with an interpolation
|
|
|
851 * alghorithm, the edges of the image are faded. This is not a bug, but
|
|
|
852 * it is not desired. To avoid the faded edges, it should be possible to
|
|
|
853 * use cairo_pattern_set_extend() to set the pattern extend to either
|
|
|
854 * CAIRO_EXTEND_REFLECT or CAIRO_EXTEND_PAD, but these are not implemented
|
|
|
855 * in some versions of cairo (1.2.x) and have bugs in others (in 1.4.2 it
|
|
|
856 * draws with black edges). The fix is to implement CAIRO_EXTEND_REFLECT
|
|
|
857 * by creating an image that is 3 times bigger than the original, drawing
|
|
|
858 * the original image in every quadrant (with an appropriate transform) and
|
|
|
859 * use this image as the pattern.
|
|
|
860 *
|
|
|
861 * NOTE: For some reaons, it is necessary to use CAIRO_EXTEND_PAD with
|
|
|
862 * the image that was created or the edges are still faded.
|
|
|
863 */
|
|
|
864 if (Cairo.cairo_version () >= Cairo.CAIRO_VERSION_ENCODE(1, 4, 0)) {
|
|
|
865 auto surface = Cairo.cairo_image_surface_create(Cairo.CAIRO_FORMAT_ARGB32, imgWidth * 3, imgHeight * 3);
|
|
|
866 auto cr = Cairo.cairo_create(surface);
|
|
|
867 Cairo.cairo_set_source_surface(cr, srcImage.surface, imgWidth, imgHeight);
|
|
|
868 Cairo.cairo_paint(cr);
|
|
|
869 Cairo.cairo_scale(cr, -1, -1);
|
|
|
870 Cairo.cairo_set_source_surface(cr, srcImage.surface, -imgWidth, -imgHeight);
|
|
|
871 Cairo.cairo_paint(cr);
|
|
|
872 Cairo.cairo_set_source_surface(cr, srcImage.surface, -imgWidth * 3, -imgHeight);
|
|
|
873 Cairo.cairo_paint(cr);
|
|
|
874 Cairo.cairo_set_source_surface(cr, srcImage.surface, -imgWidth, -imgHeight * 3);
|
|
|
875 Cairo.cairo_paint(cr);
|
|
|
876 Cairo.cairo_set_source_surface(cr, srcImage.surface, -imgWidth * 3, -imgHeight * 3);
|
|
|
877 Cairo.cairo_paint(cr);
|
|
|
878 Cairo.cairo_scale(cr, 1, -1);
|
|
|
879 Cairo.cairo_set_source_surface(cr, srcImage.surface, -imgWidth, imgHeight);
|
|
|
880 Cairo.cairo_paint(cr);
|
|
|
881 Cairo.cairo_set_source_surface(cr, srcImage.surface, -imgWidth * 3, imgHeight);
|
|
|
882 Cairo.cairo_paint(cr);
|
|
|
883 Cairo.cairo_scale(cr, -1, -1);
|
|
|
884 Cairo.cairo_set_source_surface(cr, srcImage.surface, imgWidth, -imgHeight);
|
|
|
885 Cairo.cairo_paint(cr);
|
|
|
886 Cairo.cairo_set_source_surface(cr, srcImage.surface, imgWidth, -imgHeight * 3);
|
|
|
887 Cairo.cairo_paint(cr);
|
|
|
888 Cairo.cairo_destroy(cr);
|
|
|
889 auto newPattern = Cairo.cairo_pattern_create_for_surface(surface);
|
|
|
890 Cairo.cairo_surface_destroy(surface);
|
|
|
891 if (newPattern is null) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
892 Cairo.cairo_pattern_destroy(pattern);
|
|
|
893 pattern = newPattern;
|
|
|
894 Cairo.cairo_pattern_set_extend(pattern, Cairo.CAIRO_EXTEND_PAD);
|
|
|
895 double[] matrix = new double[6];
|
|
|
896 Cairo.cairo_matrix_init_translate(cast(cairo_matrix_t*)matrix.ptr, imgWidth, imgHeight);
|
|
|
897 Cairo.cairo_pattern_set_matrix(pattern, cast(cairo_matrix_t*)matrix.ptr);
|
|
|
898 }
|
|
|
899 // Cairo.cairo_pattern_set_extend(pattern, Cairo.CAIRO_EXTEND_REFLECT);
|
|
|
900 }
|
|
|
901 Cairo.cairo_pattern_set_filter(pattern, filter);
|
|
|
902 Cairo.cairo_set_source(cairo, pattern);
|
|
|
903 if (data.alpha !is 0xFF) {
|
|
|
904 Cairo.cairo_paint_with_alpha(cairo, data.alpha / cast(float)0xFF);
|
|
|
905 } else {
|
|
|
906 Cairo.cairo_paint(cairo);
|
|
|
907 }
|
|
|
908 Cairo.cairo_restore(cairo);
|
|
|
909 Cairo.cairo_pattern_destroy(pattern);
|
|
|
910 }
|
|
|
911 return;
|
|
|
912 }
|
|
|
913 if (srcImage.alpha !is -1 || srcImage.alphaData !is null) {
|
|
|
914 drawImageAlpha(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight);
|
|
|
915 } else if (srcImage.transparentPixel !is -1 || srcImage.mask !is null) {
|
|
|
916 drawImageMask(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight);
|
|
|
917 } else {
|
|
|
918 drawImage(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight);
|
|
|
919 }
|
|
|
920 }
|
|
|
921 void drawImage(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, bool simple, int imgWidth, int imgHeight) {
|
|
|
922 if (srcWidth is destWidth && srcHeight is destHeight) {
|
|
|
923 OS.gdk_draw_drawable(data.drawable, handle, srcImage.pixmap, srcX, srcY, destX, destY, destWidth, destHeight);
|
|
|
924 } else {
|
|
|
925 if (device.useXRender) {
|
|
|
926 drawImageXRender(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight, null, -1);
|
|
|
927 return;
|
|
|
928 }
|
|
|
929 auto pixbuf = scale(srcImage.pixmap, srcX, srcY, srcWidth, srcHeight, destWidth, destHeight);
|
|
|
930 if (pixbuf !is null) {
|
|
|
931 OS.gdk_pixbuf_render_to_drawable(pixbuf, data.drawable, handle, 0, 0, destX, destY, destWidth, destHeight, OS.GDK_RGB_DITHER_NORMAL, 0, 0);
|
|
|
932 OS.g_object_unref(pixbuf);
|
|
|
933 }
|
|
|
934 }
|
|
|
935 }
|
|
|
936 void drawImageAlpha(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, bool simple, int imgWidth, int imgHeight) {
|
|
|
937 if (srcImage.alpha is 0) return;
|
|
|
938 if (srcImage.alpha is 255) {
|
|
|
939 drawImage(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight);
|
|
|
940 return;
|
|
|
941 }
|
|
|
942 if (device.useXRender) {
|
|
|
943 drawImageXRender(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight, srcImage.mask, OS.PictStandardA8);
|
|
|
944 return;
|
|
|
945 }
|
|
|
946 auto pixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB, true, 8, srcWidth, srcHeight);
|
|
|
947 if (pixbuf is null) return;
|
|
|
948 auto colormap = OS.gdk_colormap_get_system();
|
|
|
949 OS.gdk_pixbuf_get_from_drawable(pixbuf, srcImage.pixmap, colormap, srcX, srcY, 0, 0, srcWidth, srcHeight);
|
|
|
950 int stride = OS.gdk_pixbuf_get_rowstride(pixbuf);
|
|
|
951 auto pixels = OS.gdk_pixbuf_get_pixels(pixbuf);
|
|
|
952 byte[] line = new byte[stride];
|
|
|
953 byte alpha = cast(byte)srcImage.alpha;
|
|
|
954 byte[] alphaData = srcImage.alphaData;
|
|
|
955 for (int y=0; y<srcHeight; y++) {
|
|
|
956 int alphaIndex = (y + srcY) * imgWidth + srcX;
|
|
|
957 memmove(line.ptr, pixels + (y * stride), stride);
|
|
|
958 for (int x=3; x<stride; x+=4) {
|
|
|
959 line[x] = alphaData is null ? alpha : alphaData[alphaIndex++];
|
|
|
960 }
|
|
|
961 memmove(pixels + (y * stride), line.ptr, stride);
|
|
|
962 }
|
|
|
963 if (srcWidth !is destWidth || srcHeight !is destHeight) {
|
|
|
964 auto scaledPixbuf = OS.gdk_pixbuf_scale_simple(pixbuf, destWidth, destHeight, OS.GDK_INTERP_BILINEAR);
|
|
|
965 OS.g_object_unref(pixbuf);
|
|
|
966 if (scaledPixbuf is null) return;
|
|
|
967 pixbuf = scaledPixbuf;
|
|
|
968 }
|
|
|
969 /*
|
|
|
970 * Feature in GTK. gdk_draw_pixbuf was introduced in GTK+ 2.2.0 and
|
|
|
971 * supports clipping.
|
|
|
972 */
|
|
|
973 if (OS.GTK_VERSION >= OS.buildVERSION (2, 2, 0)) {
|
|
|
974 OS.gdk_draw_pixbuf(data.drawable, handle, pixbuf, 0, 0, destX, destY, destWidth, destHeight, OS.GDK_RGB_DITHER_NORMAL, 0, 0);
|
|
|
975 } else {
|
|
|
976 OS.gdk_pixbuf_render_to_drawable_alpha(pixbuf, data.drawable, 0, 0, destX, destY, destWidth, destHeight, OS.GDK_PIXBUF_ALPHA_BILEVEL, 128, OS.GDK_RGB_DITHER_NORMAL, 0, 0);
|
|
|
977 }
|
|
|
978 OS.g_object_unref(pixbuf);
|
|
|
979 }
|
|
|
980 void drawImageMask(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, bool simple, int imgWidth, int imgHeight) {
|
|
|
981 auto drawable = data.drawable;
|
|
|
982 auto colorPixmap = srcImage.pixmap;
|
|
|
983 /* Generate the mask if necessary. */
|
|
|
984 if (srcImage.transparentPixel !is -1) srcImage.createMask();
|
|
|
985 auto maskPixmap = srcImage.mask;
|
|
|
986
|
|
|
987 if (device.useXRender) {
|
|
|
988 drawImageXRender(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight, maskPixmap, OS.PictStandardA1);
|
|
|
989 } else {
|
|
|
990 if (srcWidth !is destWidth || srcHeight !is destHeight) {
|
|
|
991 auto pixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB, true, 8, srcWidth, srcHeight);
|
|
|
992 if (pixbuf !is null) {
|
|
|
993 auto colormap = OS.gdk_colormap_get_system();
|
|
|
994 OS.gdk_pixbuf_get_from_drawable(pixbuf, colorPixmap, colormap, srcX, srcY, 0, 0, srcWidth, srcHeight);
|
|
|
995 auto maskPixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB, false, 8, srcWidth, srcHeight);
|
|
|
996 if (maskPixbuf !is null) {
|
|
|
997 OS.gdk_pixbuf_get_from_drawable(maskPixbuf, maskPixmap, null, srcX, srcY, 0, 0, srcWidth, srcHeight);
|
|
|
998 int stride = OS.gdk_pixbuf_get_rowstride(pixbuf);
|
|
|
999 auto pixels = OS.gdk_pixbuf_get_pixels(pixbuf);
|
|
|
1000 byte[] line = new byte[stride];
|
|
|
1001 int maskStride = OS.gdk_pixbuf_get_rowstride(maskPixbuf);
|
|
|
1002 auto maskPixels = OS.gdk_pixbuf_get_pixels(maskPixbuf);
|
|
|
1003 byte[] maskLine = new byte[maskStride];
|
|
|
1004 for (int y=0; y<srcHeight; y++) {
|
|
|
1005 auto offset = pixels + (y * stride);
|
|
|
1006 memmove(line.ptr, offset, stride);
|
|
|
1007 auto maskOffset = maskPixels + (y * maskStride);
|
|
|
1008 memmove(maskLine.ptr, maskOffset, maskStride);
|
|
|
1009 for (int x=0; x<srcWidth; x++) {
|
|
|
1010 if (maskLine[x * 3] is 0) {
|
|
|
1011 line[x*4+3] = 0;
|
|
|
1012 }
|
|
|
1013 }
|
|
|
1014 memmove(offset, line.ptr, stride);
|
|
|
1015 }
|
|
|
1016 OS.g_object_unref(maskPixbuf);
|
|
|
1017 auto scaledPixbuf = OS.gdk_pixbuf_scale_simple(pixbuf, destWidth, destHeight, OS.GDK_INTERP_BILINEAR);
|
|
|
1018 if (scaledPixbuf !is null) {
|
|
|
1019 GdkPixmap * colorBuffer;
|
|
|
1020 GdkBitmap * maskBuffer;
|
|
|
1021 OS.gdk_pixbuf_render_pixmap_and_mask(scaledPixbuf, &colorBuffer, &maskBuffer, 128);
|
|
|
1022 colorPixmap = cast(GdkDrawable *)colorBuffer;
|
|
|
1023 maskPixmap = cast(GdkDrawable *)maskBuffer;
|
|
|
1024 OS.g_object_unref(scaledPixbuf);
|
|
|
1025 }
|
|
|
1026 }
|
|
|
1027 OS.g_object_unref(pixbuf);
|
|
|
1028 }
|
|
|
1029 srcX = 0;
|
|
|
1030 srcY = 0;
|
|
|
1031 srcWidth = destWidth;
|
|
|
1032 srcHeight = destHeight;
|
|
|
1033 }
|
|
|
1034
|
|
|
1035 /* Merge clipping with mask if necessary */
|
|
|
1036 if (data.clipRgn !is null) {
|
|
|
1037 int newWidth = srcX + srcWidth;
|
|
|
1038 int newHeight = srcY + srcHeight;
|
|
|
1039 int bytesPerLine = (newWidth + 7) / 8;
|
|
|
1040 String maskData = new char[bytesPerLine * newHeight];
|
|
|
1041 auto mask = cast(GdkDrawable *) OS.gdk_bitmap_create_from_data(null, maskData.ptr, newWidth, newHeight);
|
|
|
1042 if (mask !is null) {
|
|
|
1043 auto gc = OS.gdk_gc_new(mask);
|
|
|
1044 OS.gdk_region_offset(data.clipRgn, -destX + srcX, -destY + srcY);
|
|
|
1045 OS.gdk_gc_set_clip_region(gc, data.clipRgn);
|
|
|
1046 OS.gdk_region_offset(data.clipRgn, destX - srcX, destY - srcY);
|
|
|
1047 GdkColor* color = new GdkColor();
|
|
|
1048 color.pixel = 1;
|
|
|
1049 OS.gdk_gc_set_foreground(gc, color);
|
|
|
1050 OS.gdk_draw_rectangle(mask, gc, 1, 0, 0, newWidth, newHeight);
|
|
|
1051 OS.gdk_gc_set_function(gc, OS.GDK_AND);
|
|
|
1052 OS.gdk_draw_drawable(mask, gc, maskPixmap, 0, 0, 0, 0, newWidth, newHeight);
|
|
|
1053 OS.g_object_unref(gc);
|
|
|
1054 if (maskPixmap !is null && srcImage.mask !is maskPixmap) OS.g_object_unref(maskPixmap);
|
|
|
1055 maskPixmap = mask;
|
|
|
1056 }
|
|
|
1057 }
|
|
|
1058
|
|
|
1059 /* Blit cliping the mask */
|
|
|
1060 GdkGCValues* values = new GdkGCValues();
|
|
|
1061 OS.gdk_gc_get_values(handle, values);
|
|
|
1062 OS.gdk_gc_set_clip_mask(handle, cast(GdkBitmap *)maskPixmap);
|
|
|
1063 OS.gdk_gc_set_clip_origin(handle, destX - srcX, destY - srcY);
|
|
|
1064 OS.gdk_draw_drawable(drawable, handle, colorPixmap, srcX, srcY, destX, destY, srcWidth, srcHeight);
|
|
|
1065 OS.gdk_gc_set_values(handle, values, OS.GDK_GC_CLIP_MASK | OS.GDK_GC_CLIP_X_ORIGIN | OS.GDK_GC_CLIP_Y_ORIGIN);
|
|
|
1066 if (data.clipRgn !is null) OS.gdk_gc_set_clip_region(handle, data.clipRgn);
|
|
|
1067 }
|
|
|
1068
|
|
|
1069 /* Destroy scaled pixmaps */
|
|
|
1070 if (colorPixmap !is null && srcImage.pixmap !is colorPixmap) OS.g_object_unref(colorPixmap);
|
|
|
1071 if (maskPixmap !is null && srcImage.mask !is maskPixmap) OS.g_object_unref(maskPixmap);
|
|
|
1072 /* Destroy the image mask if the there is a GC created on the image */
|
|
|
1073 if (srcImage.transparentPixel !is -1 && srcImage.memGC !is null) srcImage.destroyMask();
|
|
|
1074 }
|
|
|
1075 void drawImageXRender(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, bool simple, int imgWidth, int imgHeight, GdkDrawable* maskPixmap, int maskType) {
|
|
|
1076 int translateX = 0, translateY = 0;
|
|
|
1077 auto drawable = data.drawable;
|
|
|
1078 if (data.image is null && !data.realDrawable) {
|
|
|
1079 int x, y;
|
|
|
1080 GdkDrawable* real_drawable;
|
|
|
1081 OS.gdk_window_get_internal_paint_info(cast(GdkWindow*)drawable, &real_drawable, &x, &y);
|
|
|
1082 drawable = real_drawable;
|
|
|
1083 translateX = -x;
|
|
|
1084 translateY = -y;
|
|
|
1085 }
|
|
|
1086 auto xDisplay = OS.GDK_DISPLAY();
|
|
|
1087 int maskPict = 0;
|
|
|
1088 if (maskPixmap !is null) {
|
|
|
1089 int attribCount = 0;
|
|
|
1090 XRenderPictureAttributes* attrib;
|
|
|
1091 if (srcImage.alpha !is -1) {
|
|
|
1092 attribCount = 1;
|
|
|
1093 attrib = new XRenderPictureAttributes();
|
|
|
1094 attrib.repeat = true;
|
|
|
1095 }
|
|
|
1096 maskPict = OS.XRenderCreatePicture(cast(void*)xDisplay, OS.gdk_x11_drawable_get_xid(maskPixmap), OS.XRenderFindStandardFormat(cast(void*)xDisplay, maskType), attribCount, attrib);
|
|
|
1097 if (maskPict is 0) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
1098 }
|
|
|
1099 auto format = OS.XRenderFindVisualFormat(cast(void*)xDisplay, OS.gdk_x11_visual_get_xvisual(OS.gdk_visual_get_system()));
|
|
|
1100 auto destPict = OS.XRenderCreatePicture(cast(void*)xDisplay, OS.gdk_x11_drawable_get_xid(drawable), format, 0, null);
|
|
|
1101 if (destPict is 0) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
1102 int srcPict = OS.XRenderCreatePicture(xDisplay, OS.gdk_x11_drawable_get_xid(srcImage.pixmap), format, 0, null);
|
|
|
1103 if (srcPict is 0) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
1104 if (srcWidth !is destWidth || srcHeight !is destHeight) {
|
|
|
1105 int[] transform = [cast(int)((cast(float)srcWidth / destWidth) * 65536), 0, 0, 0, cast(int)((cast(float)srcHeight / destHeight) * 65536), 0, 0, 0, 65536];
|
|
|
1106 OS.XRenderSetPictureTransform(xDisplay, srcPict, cast(XTransform*)transform.ptr);
|
|
|
1107 if (maskPict !is 0) OS.XRenderSetPictureTransform(xDisplay, maskPict, cast(XTransform*)transform.ptr);
|
|
|
1108 srcX *= destWidth / cast(float)srcWidth;
|
|
|
1109 srcY *= destHeight / cast(float)srcHeight;
|
|
|
1110 }
|
|
|
1111 auto clipping = data.clipRgn;
|
|
|
1112 if (data.damageRgn !is null) {
|
|
|
1113 if (clipping is null) {
|
|
|
1114 clipping = data.damageRgn;
|
|
|
1115 } else {
|
|
|
1116 clipping = OS.gdk_region_new();
|
|
|
1117 OS.gdk_region_union(clipping, data.clipRgn);
|
|
|
1118 OS.gdk_region_intersect(clipping, data.damageRgn);
|
|
|
1119 }
|
|
|
1120 }
|
|
|
1121 if (clipping !is null) {
|
|
|
1122 int nRects;
|
|
|
1123 GdkRectangle* rects;
|
|
|
1124 OS.gdk_region_get_rectangles(clipping, &rects, &nRects);
|
|
|
1125 GdkRectangle* rect;
|
|
|
1126 short[] xRects = new short[nRects * 4];
|
|
|
1127 for (int i=0, j=0; i<nRects; i++, j+=4) {
|
|
|
1128 rect = rects +i;
|
|
|
1129 xRects[j ] = cast(short)rect.x;
|
|
|
1130 xRects[j+1] = cast(short)rect.y;
|
|
|
1131 xRects[j+2] = cast(short)rect.width;
|
|
|
1132 xRects[j+3] = cast(short)rect.height;
|
|
|
1133 }
|
|
|
1134 OS.XRenderSetPictureClipRectangles(xDisplay, destPict, translateX, translateY,cast(XRectangle*) xRects.ptr, nRects);
|
|
|
1135 if (clipping !is data.clipRgn && clipping !is data.damageRgn) {
|
|
|
1136 OS.gdk_region_destroy(clipping);
|
|
|
1137 }
|
|
|
1138 if (rects !is null) OS.g_free(rects);
|
|
|
1139 }
|
|
|
1140 OS.XRenderComposite(xDisplay, maskPict !is 0 ? OS.PictOpOver : OS.PictOpSrc, srcPict, maskPict, destPict, srcX, srcY, srcX, srcY, destX + translateX, destY + translateY, destWidth, destHeight);
|
|
|
1141 OS.XRenderFreePicture(xDisplay, destPict);
|
|
|
1142 OS.XRenderFreePicture(xDisplay, srcPict);
|
|
|
1143 if (maskPict !is 0) OS.XRenderFreePicture(xDisplay, maskPict);
|
|
|
1144 }
|
|
|
1145
|
|
|
1146 GdkPixbuf* scale(GdkDrawable* src, int srcX, int srcY, int srcWidth, int srcHeight, int destWidth, int destHeight) {
|
|
|
1147 auto pixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB, false, 8, srcWidth, srcHeight);
|
|
|
1148 if (pixbuf is null) return null;
|
|
|
1149 auto colormap = OS.gdk_colormap_get_system();
|
|
|
1150 OS.gdk_pixbuf_get_from_drawable(pixbuf, src, colormap, srcX, srcY, 0, 0, srcWidth, srcHeight);
|
|
|
1151 auto scaledPixbuf = OS.gdk_pixbuf_scale_simple(pixbuf, destWidth, destHeight, OS.GDK_INTERP_BILINEAR);
|
|
|
1152 OS.g_object_unref(pixbuf);
|
|
|
1153 return scaledPixbuf;
|
|
|
1154 }
|
|
|
1155
|
|
|
1156 /**
|
|
|
1157 * Draws a line, using the foreground color, between the points
|
|
|
1158 * (<code>x1</code>, <code>y1</code>) and (<code>x2</code>, <code>y2</code>).
|
|
|
1159 *
|
|
|
1160 * @param x1 the first point's x coordinate
|
|
|
1161 * @param y1 the first point's y coordinate
|
|
|
1162 * @param x2 the second point's x coordinate
|
|
|
1163 * @param y2 the second point's y coordinate
|
|
|
1164 *
|
|
|
1165 * @exception SWTException <ul>
|
|
|
1166 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1167 * </ul>
|
|
|
1168 */
|
|
|
1169 public void drawLine(int x1, int y1, int x2, int y2) {
|
|
|
1170 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1171 checkGC(DRAW);
|
|
|
1172 auto cairo = data.cairo;
|
|
|
1173 if (cairo !is null) {
|
|
|
1174 double xOffset = data.cairoXoffset, yOffset = data.cairoYoffset;
|
|
|
1175 Cairo.cairo_move_to(cairo, x1 + xOffset, y1 + yOffset);
|
|
|
1176 Cairo.cairo_line_to(cairo, x2 + xOffset, y2 + yOffset);
|
|
|
1177 Cairo.cairo_stroke(cairo);
|
|
|
1178 return;
|
|
|
1179 }
|
|
|
1180 OS.gdk_draw_line (data.drawable, handle, x1, y1, x2, y2);
|
|
|
1181 }
|
|
|
1182
|
|
|
1183 /**
|
|
|
1184 * Draws the outline of an oval, using the foreground color,
|
|
|
1185 * within the specified rectangular area.
|
|
|
1186 * <p>
|
|
|
1187 * The result is a circle or ellipse that fits within the
|
|
|
1188 * rectangle specified by the <code>x</code>, <code>y</code>,
|
|
|
1189 * <code>width</code>, and <code>height</code> arguments.
|
|
|
1190 * </p><p>
|
|
|
1191 * The oval covers an area that is <code>width + 1</code>
|
|
|
1192 * pixels wide and <code>height + 1</code> pixels tall.
|
|
|
1193 * </p>
|
|
|
1194 *
|
|
|
1195 * @param x the x coordinate of the upper left corner of the oval to be drawn
|
|
|
1196 * @param y the y coordinate of the upper left corner of the oval to be drawn
|
|
|
1197 * @param width the width of the oval to be drawn
|
|
|
1198 * @param height the height of the oval to be drawn
|
|
|
1199 *
|
|
|
1200 * @exception SWTException <ul>
|
|
|
1201 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1202 * </ul>
|
|
|
1203 */
|
|
|
1204 public void drawOval(int x, int y, int width, int height) {
|
|
|
1205 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1206 checkGC(DRAW);
|
|
|
1207 if (width < 0) {
|
|
|
1208 x = x + width;
|
|
|
1209 width = -width;
|
|
|
1210 }
|
|
|
1211 if (height < 0) {
|
|
|
1212 y = y + height;
|
|
|
1213 height = -height;
|
|
|
1214 }
|
|
|
1215 auto cairo = data.cairo;
|
|
|
1216 if (cairo !is null) {
|
|
|
1217 double xOffset = data.cairoXoffset, yOffset = data.cairoYoffset;
|
|
|
1218 if (width is height) {
|
|
|
1219 Cairo.cairo_arc_negative(cairo, x + xOffset + width / 2f, y + yOffset + height / 2f, width / 2f, 0, -2 * cast(float)Compatibility.PI);
|
|
|
1220 } else {
|
|
|
1221 Cairo.cairo_save(cairo);
|
|
|
1222 Cairo.cairo_translate(cairo, x + xOffset + width / 2f, y + yOffset + height / 2f);
|
|
|
1223 Cairo.cairo_scale(cairo, width / 2f, height / 2f);
|
|
|
1224 Cairo.cairo_arc_negative(cairo, 0, 0, 1, 0, -2 * cast(float)Compatibility.PI);
|
|
|
1225 Cairo.cairo_restore(cairo);
|
|
|
1226 }
|
|
|
1227 Cairo.cairo_stroke(cairo);
|
|
|
1228 return;
|
|
|
1229 }
|
|
|
1230 OS.gdk_draw_arc(data.drawable, handle, 0, x, y, width, height, 0, 23040);
|
|
|
1231 }
|
|
|
1232
|
|
|
1233 /**
|
|
|
1234 * Draws the path described by the parameter.
|
|
|
1235 * <p>
|
|
|
1236 * This operation requires the operating system's advanced
|
|
|
1237 * graphics subsystem which may not be available on some
|
|
|
1238 * platforms.
|
|
|
1239 * </p>
|
|
|
1240 *
|
|
|
1241 * @param path the path to draw
|
|
|
1242 *
|
|
|
1243 * @exception IllegalArgumentException <ul>
|
|
|
1244 * <li>ERROR_NULL_ARGUMENT - if the parameter is null</li>
|
|
|
1245 * <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed</li>
|
|
|
1246 * </ul>
|
|
|
1247 * @exception SWTException <ul>
|
|
|
1248 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1249 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li>
|
|
|
1250 * </ul>
|
|
|
1251 *
|
|
|
1252 * @see Path
|
|
|
1253 *
|
|
|
1254 * @since 3.1
|
|
|
1255 */
|
|
|
1256 public void drawPath(Path path) {
|
|
|
1257 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1258 if (path is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
1259 if (path.handle is null) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
1260 initCairo();
|
|
|
1261 checkGC(DRAW);
|
|
|
1262 auto cairo = data.cairo;
|
|
|
1263 Cairo.cairo_save(cairo);
|
|
|
1264 double xOffset = data.cairoXoffset, yOffset = data.cairoYoffset;
|
|
|
1265 Cairo.cairo_translate(cairo, xOffset, yOffset);
|
|
|
1266 auto copy = Cairo.cairo_copy_path(path.handle);
|
|
|
1267 if (copy is null) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
1268 Cairo.cairo_append_path(cairo, copy);
|
|
|
1269 Cairo.cairo_path_destroy(copy);
|
|
|
1270 Cairo.cairo_stroke(cairo);
|
|
|
1271 Cairo.cairo_restore(cairo);
|
|
|
1272 }
|
|
|
1273
|
|
|
1274 /**
|
|
|
1275 * Draws a pixel, using the foreground color, at the specified
|
|
|
1276 * point (<code>x</code>, <code>y</code>).
|
|
|
1277 * <p>
|
|
|
1278 * Note that the receiver's line attributes do not affect this
|
|
|
1279 * operation.
|
|
|
1280 * </p>
|
|
|
1281 *
|
|
|
1282 * @param x the point's x coordinate
|
|
|
1283 * @param y the point's y coordinate
|
|
|
1284 *
|
|
|
1285 * @exception SWTException <ul>
|
|
|
1286 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1287 * </ul>
|
|
|
1288 *
|
|
|
1289 * @since 3.0
|
|
|
1290 */
|
|
|
1291 public void drawPoint (int x, int y) {
|
|
|
1292 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1293 checkGC(DRAW);
|
|
|
1294 auto cairo = data.cairo;
|
|
|
1295 if (cairo !is null) {
|
|
|
1296 Cairo.cairo_rectangle(cairo, x, y, 1, 1);
|
|
|
1297 Cairo.cairo_fill(cairo);
|
|
|
1298 return;
|
|
|
1299 }
|
|
|
1300 OS.gdk_draw_point(data.drawable, handle, x, y);
|
|
|
1301 }
|
|
|
1302
|
|
|
1303 /**
|
|
|
1304 * Draws the closed polygon which is defined by the specified array
|
|
|
1305 * of integer coordinates, using the receiver's foreground color. The array
|
|
|
1306 * contains alternating x and y values which are considered to represent
|
|
|
1307 * points which are the vertices of the polygon. Lines are drawn between
|
|
|
1308 * each consecutive pair, and between the first pair and last pair in the
|
|
|
1309 * array.
|
|
|
1310 *
|
|
|
1311 * @param pointArray an array of alternating x and y values which are the vertices of the polygon
|
|
|
1312 *
|
|
|
1313 * @exception SWTException <ul>
|
|
|
1314 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1315 * </ul>
|
|
|
1316 */
|
|
|
1317 public void drawPolygon(int[] pointArray) {
|
|
|
1318 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1319 // SWT externsion: allow null array
|
|
|
1320 //if (pointArray is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
1321 checkGC(DRAW);
|
|
|
1322 auto cairo = data.cairo;
|
|
|
1323 if (cairo !is null) {
|
|
|
1324 drawPolyline(cairo, pointArray, true);
|
|
|
1325 Cairo.cairo_stroke(cairo);
|
|
|
1326 return;
|
|
|
1327 }
|
|
|
1328 OS.gdk_draw_polygon(data.drawable, handle, 0, cast(GdkPoint*)pointArray.ptr, pointArray.length / 2);
|
|
|
1329 }
|
|
|
1330
|
|
|
1331 /**
|
|
|
1332 * Draws the polyline which is defined by the specified array
|
|
|
1333 * of integer coordinates, using the receiver's foreground color. The array
|
|
|
1334 * contains alternating x and y values which are considered to represent
|
|
|
1335 * points which are the corners of the polyline. Lines are drawn between
|
|
|
1336 * each consecutive pair, but not between the first pair and last pair in
|
|
|
1337 * the array.
|
|
|
1338 *
|
|
|
1339 * @param pointArray an array of alternating x and y values which are the corners of the polyline
|
|
|
1340 *
|
|
|
1341 * @exception SWTException <ul>
|
|
|
1342 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1343 * </ul>
|
|
|
1344 */
|
|
|
1345 public void drawPolyline(int[] pointArray) {
|
|
|
1346 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1347 // SWT externsion: allow null array
|
|
|
1348 //if (pointArray is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
1349 checkGC(DRAW);
|
|
|
1350 auto cairo = data.cairo;
|
|
|
1351 if (cairo !is null) {
|
|
|
1352 drawPolyline(cairo, pointArray, false);
|
|
|
1353 Cairo.cairo_stroke(cairo);
|
|
|
1354 return;
|
|
|
1355 }
|
|
|
1356 OS.gdk_draw_lines(data.drawable, handle, cast(GdkPoint*)pointArray.ptr, pointArray.length / 2);
|
|
|
1357 }
|
|
|
1358
|
|
|
1359 void drawPolyline(cairo_t* cairo, int[] pointArray, bool close) {
|
|
|
1360 int count = pointArray.length / 2;
|
|
|
1361 if (count is 0) return;
|
|
|
1362 double xOffset = data.cairoXoffset, yOffset = data.cairoYoffset;
|
|
|
1363 Cairo.cairo_move_to(cairo, pointArray[0] + xOffset, pointArray[1] + yOffset);
|
|
|
1364 for (int i = 1, j=2; i < count; i++, j += 2) {
|
|
|
1365 Cairo.cairo_line_to(cairo, pointArray[j] + xOffset, pointArray[j + 1] + yOffset);
|
|
|
1366 }
|
|
|
1367 if (close) Cairo.cairo_close_path(cairo);
|
|
|
1368 }
|
|
|
1369
|
|
|
1370 /**
|
|
|
1371 * Draws the outline of the rectangle specified by the arguments,
|
|
|
1372 * using the receiver's foreground color. The left and right edges
|
|
|
1373 * of the rectangle are at <code>x</code> and <code>x + width</code>.
|
|
|
1374 * The top and bottom edges are at <code>y</code> and <code>y + height</code>.
|
|
|
1375 *
|
|
|
1376 * @param x the x coordinate of the rectangle to be drawn
|
|
|
1377 * @param y the y coordinate of the rectangle to be drawn
|
|
|
1378 * @param width the width of the rectangle to be drawn
|
|
|
1379 * @param height the height of the rectangle to be drawn
|
|
|
1380 *
|
|
|
1381 * @exception SWTException <ul>
|
|
|
1382 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1383 * </ul>
|
|
|
1384 */
|
|
|
1385 public void drawRectangle(int x, int y, int width, int height) {
|
|
|
1386 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1387 checkGC(DRAW);
|
|
|
1388 if (width < 0) {
|
|
|
1389 x = x + width;
|
|
|
1390 width = -width;
|
|
|
1391 }
|
|
|
1392 if (height < 0) {
|
|
|
1393 y = y + height;
|
|
|
1394 height = -height;
|
|
|
1395 }
|
|
|
1396 auto cairo = data.cairo;
|
|
|
1397 if (cairo !is null) {
|
|
|
1398 double xOffset = data.cairoXoffset, yOffset = data.cairoYoffset;
|
|
|
1399 Cairo.cairo_rectangle(cairo, x + xOffset, y + yOffset, width, height);
|
|
|
1400 Cairo.cairo_stroke(cairo);
|
|
|
1401 return;
|
|
|
1402 }
|
|
|
1403 OS.gdk_draw_rectangle(data.drawable, handle, 0, x, y, width, height);
|
|
|
1404 }
|
|
|
1405
|
|
|
1406 /**
|
|
|
1407 * Draws the outline of the specified rectangle, using the receiver's
|
|
|
1408 * foreground color. The left and right edges of the rectangle are at
|
|
|
1409 * <code>rect.x</code> and <code>rect.x + rect.width</code>. The top
|
|
|
1410 * and bottom edges are at <code>rect.y</code> and
|
|
|
1411 * <code>rect.y + rect.height</code>.
|
|
|
1412 *
|
|
|
1413 * @param rect the rectangle to draw
|
|
|
1414 *
|
|
|
1415 * @exception IllegalArgumentException <ul>
|
|
|
1416 * <li>ERROR_NULL_ARGUMENT - if the rectangle is null</li>
|
|
|
1417 * </ul>
|
|
|
1418 * @exception SWTException <ul>
|
|
|
1419 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1420 * </ul>
|
|
|
1421 */
|
|
|
1422 public void drawRectangle(Rectangle rect) {
|
|
|
1423 if (rect is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
1424 drawRectangle (rect.x, rect.y, rect.width, rect.height);
|
|
|
1425 }
|
|
|
1426 /**
|
|
|
1427 * Draws the outline of the round-cornered rectangle specified by
|
|
|
1428 * the arguments, using the receiver's foreground color. The left and
|
|
|
1429 * right edges of the rectangle are at <code>x</code> and <code>x + width</code>.
|
|
|
1430 * The top and bottom edges are at <code>y</code> and <code>y + height</code>.
|
|
|
1431 * The <em>roundness</em> of the corners is specified by the
|
|
|
1432 * <code>arcWidth</code> and <code>arcHeight</code> arguments, which
|
|
|
1433 * are respectively the width and height of the ellipse used to draw
|
|
|
1434 * the corners.
|
|
|
1435 *
|
|
|
1436 * @param x the x coordinate of the rectangle to be drawn
|
|
|
1437 * @param y the y coordinate of the rectangle to be drawn
|
|
|
1438 * @param width the width of the rectangle to be drawn
|
|
|
1439 * @param height the height of the rectangle to be drawn
|
|
|
1440 * @param arcWidth the width of the arc
|
|
|
1441 * @param arcHeight the height of the arc
|
|
|
1442 *
|
|
|
1443 * @exception SWTException <ul>
|
|
|
1444 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1445 * </ul>
|
|
|
1446 */
|
|
|
1447 public void drawRoundRectangle(int x, int y, int width, int height, int arcWidth, int arcHeight) {
|
|
|
1448 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1449 checkGC(DRAW);
|
|
|
1450 int nx = x;
|
|
|
1451 int ny = y;
|
|
|
1452 int nw = width;
|
|
|
1453 int nh = height;
|
|
|
1454 int naw = arcWidth;
|
|
|
1455 int nah = arcHeight;
|
|
|
1456 if (nw < 0) {
|
|
|
1457 nw = 0 - nw;
|
|
|
1458 nx = nx - nw;
|
|
|
1459 }
|
|
|
1460 if (nh < 0) {
|
|
|
1461 nh = 0 - nh;
|
|
|
1462 ny = ny -nh;
|
|
|
1463 }
|
|
|
1464 if (naw < 0) naw = 0 - naw;
|
|
|
1465 if (nah < 0) nah = 0 - nah;
|
|
|
1466 auto cairo = data.cairo;
|
|
|
1467 if (cairo !is null) {
|
|
|
1468 double xOffset = data.cairoXoffset, yOffset = data.cairoYoffset;
|
|
|
1469 if (naw is 0 || nah is 0) {
|
|
|
1470 Cairo.cairo_rectangle(cairo, x + xOffset, y + yOffset, width, height);
|
|
|
1471 } else {
|
|
|
1472 float naw2 = naw / 2f;
|
|
|
1473 float nah2 = nah / 2f;
|
|
|
1474 float fw = nw / naw2;
|
|
|
1475 float fh = nh / nah2;
|
|
|
1476 Cairo.cairo_save(cairo);
|
|
|
1477 Cairo.cairo_translate(cairo, nx + xOffset, ny + yOffset);
|
|
|
1478 Cairo.cairo_scale(cairo, naw2, nah2);
|
|
|
1479 Cairo.cairo_move_to(cairo, fw - 1, 0);
|
|
|
1480 Cairo.cairo_arc(cairo, fw - 1, 1, 1, Compatibility.PI + Compatibility.PI/2.0, Compatibility.PI*2.0);
|
|
|
1481 Cairo.cairo_arc(cairo, fw - 1, fh - 1, 1, 0, Compatibility.PI/2.0);
|
|
|
1482 Cairo.cairo_arc(cairo, 1, fh - 1, 1, Compatibility.PI/2, Compatibility.PI);
|
|
|
1483 Cairo.cairo_arc(cairo, 1, 1, 1, Compatibility.PI, 270.0*Compatibility.PI/180.0);
|
|
|
1484 Cairo.cairo_close_path(cairo);
|
|
|
1485 Cairo.cairo_restore(cairo);
|
|
|
1486 }
|
|
|
1487 Cairo.cairo_stroke(cairo);
|
|
|
1488 return;
|
|
|
1489 }
|
|
|
1490 int naw2 = naw / 2;
|
|
|
1491 int nah2 = nah / 2;
|
|
|
1492 auto drawable = data.drawable;
|
|
|
1493 if (nw > naw) {
|
|
|
1494 if (nh > nah) {
|
|
|
1495 OS.gdk_draw_arc(drawable, handle, 0, nx, ny, naw, nah, 5760, 5760);
|
|
|
1496 OS.gdk_draw_line(drawable, handle, nx + naw2, ny, nx + nw - naw2, ny);
|
|
|
1497 OS.gdk_draw_arc(drawable, handle, 0, nx + nw - naw, ny, naw, nah, 0, 5760);
|
|
|
1498 OS.gdk_draw_line(drawable, handle, nx + nw, ny + nah2, nx + nw, ny + nh - nah2);
|
|
|
1499 OS.gdk_draw_arc(drawable, handle, 0, nx + nw - naw, ny + nh - nah, naw, nah, 17280, 5760);
|
|
|
1500 OS.gdk_draw_line(drawable,handle, nx + naw2, ny + nh, nx + nw - naw2, ny + nh);
|
|
|
1501 OS.gdk_draw_arc(drawable, handle, 0, nx, ny + nh - nah, naw, nah, 11520, 5760);
|
|
|
1502 OS.gdk_draw_line(drawable, handle, nx, ny + nah2, nx, ny + nh - nah2);
|
|
|
1503 } else {
|
|
|
1504 OS.gdk_draw_arc(drawable, handle, 0, nx, ny, naw, nh, 5760, 11520);
|
|
|
1505 OS.gdk_draw_line(drawable, handle, nx + naw2, ny, nx + nw - naw2, ny);
|
|
|
1506 OS.gdk_draw_arc(drawable, handle, 0, nx + nw - naw, ny, naw, nh, 17280, 11520);
|
|
|
1507 OS.gdk_draw_line(drawable,handle, nx + naw2, ny + nh, nx + nw - naw2, ny + nh);
|
|
|
1508 }
|
|
|
1509 } else {
|
|
|
1510 if (nh > nah) {
|
|
|
1511 OS.gdk_draw_arc(drawable, handle, 0, nx, ny, nw, nah, 0, 11520);
|
|
|
1512 OS.gdk_draw_line(drawable, handle, nx + nw, ny + nah2, nx + nw, ny + nh - nah2);
|
|
|
1513 OS.gdk_draw_arc(drawable, handle, 0, nx, ny + nh - nah, nw, nah, 11520, 11520);
|
|
|
1514 OS.gdk_draw_line(drawable,handle, nx, ny + nah2, nx, ny + nh - nah2);
|
|
|
1515 } else {
|
|
|
1516 OS.gdk_draw_arc(drawable, handle, 0, nx, ny, nw, nh, 0, 23040);
|
|
|
1517 }
|
|
|
1518 }
|
|
|
1519 }
|
|
|
1520
|
|
|
1521 /**
|
|
|
1522 * Draws the given str, using the receiver's current font and
|
|
|
1523 * foreground color. No tab expansion or carriage return processing
|
|
|
1524 * will be performed. The background of the rectangular area where
|
|
|
1525 * the str is being drawn will be filled with the receiver's
|
|
|
1526 * background color.
|
|
|
1527 *
|
|
|
1528 * @param str the str to be drawn
|
|
|
1529 * @param x the x coordinate of the top left corner of the rectangular area where the str is to be drawn
|
|
|
1530 * @param y the y coordinate of the top left corner of the rectangular area where the str is to be drawn
|
|
|
1531 *
|
|
|
1532 * @exception SWTException <ul>
|
|
|
1533 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1534 * </ul>
|
|
|
1535 */
|
|
|
1536 public void drawString (String str, int x, int y) {
|
|
|
1537 drawString(str, x, y, false);
|
|
|
1538 }
|
|
|
1539 /**
|
|
|
1540 * Draws the given str, using the receiver's current font and
|
|
|
1541 * foreground color. No tab expansion or carriage return processing
|
|
|
1542 * will be performed. If <code>isTransparent</code> is <code>true</code>,
|
|
|
1543 * then the background of the rectangular area where the str is being
|
|
|
1544 * drawn will not be modified, otherwise it will be filled with the
|
|
|
1545 * receiver's background color.
|
|
|
1546 *
|
|
|
1547 * @param str the str to be drawn
|
|
|
1548 * @param x the x coordinate of the top left corner of the rectangular area where the str is to be drawn
|
|
|
1549 * @param y the y coordinate of the top left corner of the rectangular area where the str is to be drawn
|
|
|
1550 * @param isTransparent if <code>true</code> the background will be transparent, otherwise it will be opaque
|
|
|
1551 *
|
|
|
1552 * @exception SWTException <ul>
|
|
|
1553 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1554 * </ul>
|
|
|
1555 */
|
|
|
1556 public void drawString(String str, int x, int y, bool isTransparent) {
|
|
|
1557 drawText(str, x, y, isTransparent ? SWT.DRAW_TRANSPARENT : 0);
|
|
|
1558 }
|
|
|
1559
|
|
|
1560 /**
|
|
|
1561 * Draws the given str, using the receiver's current font and
|
|
|
1562 * foreground color. Tab expansion and carriage return processing
|
|
|
1563 * are performed. The background of the rectangular area where
|
|
|
1564 * the text is being drawn will be filled with the receiver's
|
|
|
1565 * background color.
|
|
|
1566 *
|
|
|
1567 * @param str the str to be drawn
|
|
|
1568 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn
|
|
|
1569 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn
|
|
|
1570 *
|
|
|
1571 * @exception SWTException <ul>
|
|
|
1572 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1573 * </ul>
|
|
|
1574 */
|
|
|
1575 public void drawText(String str, int x, int y) {
|
|
|
1576 drawText(str, x, y, SWT.DRAW_DELIMITER | SWT.DRAW_TAB);
|
|
|
1577 }
|
|
|
1578
|
|
|
1579 /**
|
|
|
1580 * Draws the given str, using the receiver's current font and
|
|
|
1581 * foreground color. Tab expansion and carriage return processing
|
|
|
1582 * are performed. If <code>isTransparent</code> is <code>true</code>,
|
|
|
1583 * then the background of the rectangular area where the text is being
|
|
|
1584 * drawn will not be modified, otherwise it will be filled with the
|
|
|
1585 * receiver's background color.
|
|
|
1586 *
|
|
|
1587 * @param str the str to be drawn
|
|
|
1588 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn
|
|
|
1589 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn
|
|
|
1590 * @param isTransparent if <code>true</code> the background will be transparent, otherwise it will be opaque
|
|
|
1591 *
|
|
|
1592 * @exception SWTException <ul>
|
|
|
1593 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1594 * </ul>
|
|
|
1595 */
|
|
|
1596 public void drawText(String str, int x, int y, bool isTransparent) {
|
|
|
1597 int flags = SWT.DRAW_DELIMITER | SWT.DRAW_TAB;
|
|
|
1598 if (isTransparent) flags |= SWT.DRAW_TRANSPARENT;
|
|
|
1599 drawText(str, x, y, flags);
|
|
|
1600 }
|
|
|
1601
|
|
|
1602 /**
|
|
|
1603 * Draws the given str, using the receiver's current font and
|
|
|
1604 * foreground color. Tab expansion, line delimiter and mnemonic
|
|
|
1605 * processing are performed according to the specified flags. If
|
|
|
1606 * <code>flags</code> includes <code>DRAW_TRANSPARENT</code>,
|
|
|
1607 * then the background of the rectangular area where the text is being
|
|
|
1608 * drawn will not be modified, otherwise it will be filled with the
|
|
|
1609 * receiver's background color.
|
|
|
1610 * <p>
|
|
|
1611 * The parameter <code>flags</code> may be a combination of:
|
|
|
1612 * <dl>
|
|
|
1613 * <dt><b>DRAW_DELIMITER</b></dt>
|
|
|
1614 * <dd>draw multiple lines</dd>
|
|
|
1615 * <dt><b>DRAW_TAB</b></dt>
|
|
|
1616 * <dd>expand tabs</dd>
|
|
|
1617 * <dt><b>DRAW_MNEMONIC</b></dt>
|
|
|
1618 * <dd>underline the mnemonic character</dd>
|
|
|
1619 * <dt><b>DRAW_TRANSPARENT</b></dt>
|
|
|
1620 * <dd>transparent background</dd>
|
|
|
1621 * </dl>
|
|
|
1622 * </p>
|
|
|
1623 *
|
|
|
1624 * @param str the str to be drawn
|
|
|
1625 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn
|
|
|
1626 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn
|
|
|
1627 * @param flags the flags specifying how to process the text
|
|
|
1628 *
|
|
|
1629 * @exception SWTException <ul>
|
|
|
1630 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1631 * </ul>
|
|
|
1632 */
|
|
|
1633 public void drawText (String str, int x, int y, int flags) {
|
|
|
1634 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1635 // SWT extension: allow null string
|
|
|
1636 //if (str is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
1637 if (str.length is 0) return;
|
|
|
1638 auto cairo = data.cairo;
|
|
|
1639 if (cairo !is null) {
|
|
|
1640 if (OS.GTK_VERSION < OS.buildVERSION(2, 8, 0)) {
|
|
|
1641 //TODO - honor flags
|
|
|
1642 checkGC(FOREGROUND | FONT);
|
|
|
1643 cairo_font_extents_t* extents = new cairo_font_extents_t();
|
|
|
1644 Cairo.cairo_font_extents(cairo, extents);
|
|
|
1645 double baseline = y + extents.ascent;
|
|
|
1646 Cairo.cairo_move_to(cairo, x, baseline);
|
|
|
1647 char* buffer = toStringz( str );
|
|
|
1648 Cairo.cairo_show_text(cairo, buffer);
|
|
|
1649 Cairo.cairo_new_path(cairo);
|
|
|
1650 return;
|
|
|
1651 }
|
|
|
1652 }
|
|
|
1653 setString(str, flags);
|
|
|
1654 if (cairo !is null) {
|
|
|
1655 if ((flags & SWT.DRAW_TRANSPARENT) is 0) {
|
|
|
1656 checkGC(BACKGROUND);
|
|
|
1657 int width, height;
|
|
|
1658 OS.pango_layout_get_size(data.layout, &width, &height);
|
|
|
1659 Cairo.cairo_rectangle(cairo, x, y, OS.PANGO_PIXELS(width), OS.PANGO_PIXELS(height));
|
|
|
1660 Cairo.cairo_fill(cairo);
|
|
|
1661 }
|
|
|
1662 checkGC(FOREGROUND | FONT);
|
|
|
1663 if ((data.style & SWT.MIRRORED) !is 0) {
|
|
|
1664 Cairo.cairo_save(cairo);
|
|
|
1665 int width, height;
|
|
|
1666 OS.pango_layout_get_size(data.layout, &width, &height);
|
|
|
1667 Cairo.cairo_scale(cairo, -1f, 1);
|
|
|
1668 Cairo.cairo_translate(cairo, -2 * x - OS.PANGO_PIXELS(width), 0);
|
|
|
1669 }
|
|
|
1670 Cairo.cairo_move_to(cairo, x, y);
|
|
|
1671 OS.pango_cairo_show_layout(cairo, data.layout);
|
|
|
1672 if ((data.style & SWT.MIRRORED) !is 0) {
|
|
|
1673 Cairo.cairo_restore(cairo);
|
|
|
1674 }
|
|
|
1675 Cairo.cairo_new_path(cairo);
|
|
|
1676 return;
|
|
|
1677 }
|
|
|
1678 checkGC(FOREGROUND | FONT | BACKGROUND_BG);
|
|
|
1679 GdkColor* background = null;
|
|
|
1680 if ((flags & SWT.DRAW_TRANSPARENT) is 0) background = data.background;
|
|
|
1681 if (!data.xorMode) {
|
|
|
1682 OS.gdk_draw_layout_with_colors(data.drawable, handle, x, y, data.layout, null, background);
|
|
|
1683 } else {
|
|
|
1684 auto layout = data.layout;
|
|
|
1685 int w, h;
|
|
|
1686 OS.pango_layout_get_size(layout, &w, &h);
|
|
|
1687 int width = OS.PANGO_PIXELS(w);
|
|
|
1688 int height = OS.PANGO_PIXELS(h);
|
|
|
1689 auto pixmap = OS.gdk_pixmap_new(cast(GdkDrawable*)OS.GDK_ROOT_PARENT(), width, height, -1);
|
|
|
1690 if (pixmap is null) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
1691 auto gdkGC = OS.gdk_gc_new(cast(GdkDrawable*)pixmap);
|
|
|
1692 if (gdkGC is null) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
1693 GdkColor* black = new GdkColor();
|
|
|
1694 OS.gdk_gc_set_foreground(gdkGC, black);
|
|
|
1695 OS.gdk_draw_rectangle(cast(GdkDrawable*)pixmap, gdkGC, 1, 0, 0, width, height);
|
|
|
1696 OS.gdk_gc_set_foreground(gdkGC, data.foreground);
|
|
|
1697 OS.gdk_draw_layout_with_colors(cast(GdkDrawable*)pixmap, gdkGC, 0, 0, layout, null, background);
|
|
|
1698 OS.g_object_unref(gdkGC);
|
|
|
1699 OS.gdk_draw_drawable(data.drawable, handle, cast(GdkDrawable*)pixmap, 0, 0, x, y, width, height);
|
|
|
1700 OS.g_object_unref(pixmap);
|
|
|
1701 }
|
|
|
1702 }
|
|
|
1703
|
|
|
1704 /**
|
|
|
1705 * Compares the argument to the receiver, and returns true
|
|
|
1706 * if they represent the <em>same</em> object using a class
|
|
|
1707 * specific comparison.
|
|
|
1708 *
|
|
|
1709 * @param object the object to compare with this object
|
|
|
1710 * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise
|
|
|
1711 *
|
|
|
1712 * @see #hashCode
|
|
|
1713 */
|
|
|
1714 public override int opEquals(Object object) {
|
|
|
1715 if (object is this) return true;
|
|
|
1716 if ( auto gc = cast(GC)object){
|
|
|
1717 return handle is gc.handle;
|
|
|
1718 }
|
|
|
1719 return false;
|
|
|
1720 }
|
|
|
1721
|
|
|
1722
|
|
|
1723 /**
|
|
|
1724 * Fills the interior of a circular or elliptical arc within
|
|
|
1725 * the specified rectangular area, with the receiver's background
|
|
|
1726 * color.
|
|
|
1727 * <p>
|
|
|
1728 * The resulting arc begins at <code>startAngle</code> and extends
|
|
|
1729 * for <code>arcAngle</code> degrees, using the current color.
|
|
|
1730 * Angles are interpreted such that 0 degrees is at the 3 o'clock
|
|
|
1731 * position. A positive value indicates a counter-clockwise rotation
|
|
|
1732 * while a negative value indicates a clockwise rotation.
|
|
|
1733 * </p><p>
|
|
|
1734 * The center of the arc is the center of the rectangle whose origin
|
|
|
1735 * is (<code>x</code>, <code>y</code>) and whose size is specified by the
|
|
|
1736 * <code>width</code> and <code>height</code> arguments.
|
|
|
1737 * </p><p>
|
|
|
1738 * The resulting arc covers an area <code>width + 1</code> pixels wide
|
|
|
1739 * by <code>height + 1</code> pixels tall.
|
|
|
1740 * </p>
|
|
|
1741 *
|
|
|
1742 * @param x the x coordinate of the upper-left corner of the arc to be filled
|
|
|
1743 * @param y the y coordinate of the upper-left corner of the arc to be filled
|
|
|
1744 * @param width the width of the arc to be filled
|
|
|
1745 * @param height the height of the arc to be filled
|
|
|
1746 * @param startAngle the beginning angle
|
|
|
1747 * @param arcAngle the angular extent of the arc, relative to the start angle
|
|
|
1748 *
|
|
|
1749 * @exception SWTException <ul>
|
|
|
1750 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1751 * </ul>
|
|
|
1752 *
|
|
|
1753 * @see #drawArc
|
|
|
1754 */
|
|
|
1755 public void fillArc(int x, int y, int width, int height, int startAngle, int arcAngle) {
|
|
|
1756 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1757 checkGC(FILL);
|
|
|
1758 if (width < 0) {
|
|
|
1759 x = x + width;
|
|
|
1760 width = -width;
|
|
|
1761 }
|
|
|
1762 if (height < 0) {
|
|
|
1763 y = y + height;
|
|
|
1764 height = -height;
|
|
|
1765 }
|
|
|
1766 if (width is 0 || height is 0 || arcAngle is 0) return;
|
|
|
1767 auto cairo = data.cairo;
|
|
|
1768 if (cairo !is null) {
|
|
|
1769 if (width is height) {
|
|
|
1770 if (arcAngle >= 0) {
|
|
|
1771 Cairo.cairo_arc_negative(cairo, x + width / 2f, y + height / 2f, width / 2f, -startAngle * cast(float)Compatibility.PI / 180, -(startAngle + arcAngle) * cast(float)Compatibility.PI / 180);
|
|
|
1772 } else {
|
|
|
1773 Cairo.cairo_arc(cairo, x + width / 2f, y + height / 2f, width / 2f, -startAngle * cast(float)Compatibility.PI / 180, -(startAngle + arcAngle) * cast(float)Compatibility.PI / 180);
|
|
|
1774 }
|
|
|
1775 Cairo.cairo_line_to(cairo, x + width / 2f, y + height / 2f);
|
|
|
1776 } else {
|
|
|
1777 Cairo.cairo_save(cairo);
|
|
|
1778 Cairo.cairo_translate(cairo, x + width / 2f, y + height / 2f);
|
|
|
1779 Cairo.cairo_scale(cairo, width / 2f, height / 2f);
|
|
|
1780 if (arcAngle >= 0) {
|
|
|
1781 Cairo.cairo_arc_negative(cairo, 0, 0, 1, -startAngle * cast(float)Compatibility.PI / 180, -(startAngle + arcAngle) * cast(float)Compatibility.PI / 180);
|
|
|
1782 } else {
|
|
|
1783 Cairo.cairo_arc(cairo, 0, 0, 1, -startAngle * cast(float)Compatibility.PI / 180, -(startAngle + arcAngle) * cast(float)Compatibility.PI / 180);
|
|
|
1784 }
|
|
|
1785 Cairo.cairo_line_to(cairo, 0, 0);
|
|
|
1786 Cairo.cairo_restore(cairo);
|
|
|
1787 }
|
|
|
1788 Cairo.cairo_fill(cairo);
|
|
|
1789 return;
|
|
|
1790 }
|
|
|
1791 OS.gdk_draw_arc(data.drawable, handle, 1, x, y, width, height, startAngle * 64, arcAngle * 64);
|
|
|
1792 }
|
|
|
1793
|
|
|
1794 /**
|
|
|
1795 * Fills the interior of the specified rectangle with a gradient
|
|
|
1796 * sweeping from left to right or top to bottom progressing
|
|
|
1797 * from the receiver's foreground color to its background color.
|
|
|
1798 *
|
|
|
1799 * @param x the x coordinate of the rectangle to be filled
|
|
|
1800 * @param y the y coordinate of the rectangle to be filled
|
|
|
1801 * @param width the width of the rectangle to be filled, may be negative
|
|
|
1802 * (inverts direction of gradient if horizontal)
|
|
|
1803 * @param height the height of the rectangle to be filled, may be negative
|
|
|
1804 * (inverts direction of gradient if vertical)
|
|
|
1805 * @param vertical if true sweeps from top to bottom, else
|
|
|
1806 * sweeps from left to right
|
|
|
1807 *
|
|
|
1808 * @exception SWTException <ul>
|
|
|
1809 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1810 * </ul>
|
|
|
1811 *
|
|
|
1812 * @see #drawRectangle(int, int, int, int)
|
|
|
1813 */
|
|
|
1814 public void fillGradientRectangle(int x, int y, int width, int height, bool vertical) {
|
|
|
1815 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1816 if ((width is 0) || (height is 0)) return;
|
|
|
1817
|
|
|
1818 /* Rewrite this to use GdkPixbuf */
|
|
|
1819
|
|
|
1820 RGB backgroundRGB, foregroundRGB;
|
|
|
1821 backgroundRGB = getBackground().getRGB();
|
|
|
1822 foregroundRGB = getForeground().getRGB();
|
|
|
1823
|
|
|
1824 RGB fromRGB, toRGB;
|
|
|
1825 fromRGB = foregroundRGB;
|
|
|
1826 toRGB = backgroundRGB;
|
|
|
1827 bool swapColors = false;
|
|
|
1828 if (width < 0) {
|
|
|
1829 x += width; width = -width;
|
|
|
1830 if (! vertical) swapColors = true;
|
|
|
1831 }
|
|
|
1832 if (height < 0) {
|
|
|
1833 y += height; height = -height;
|
|
|
1834 if (vertical) swapColors = true;
|
|
|
1835 }
|
|
|
1836 if (swapColors) {
|
|
|
1837 fromRGB = backgroundRGB;
|
|
|
1838 toRGB = foregroundRGB;
|
|
|
1839 }
|
|
|
1840 if (fromRGB.opEquals(toRGB)) {
|
|
|
1841 fillRectangle(x, y, width, height);
|
|
|
1842 return;
|
|
|
1843 }
|
|
|
1844 auto cairo = data.cairo;
|
|
|
1845 if (cairo !is null) {
|
|
|
1846 cairo_pattern_t* pattern;
|
|
|
1847 if (vertical) {
|
|
|
1848 pattern = Cairo.cairo_pattern_create_linear (0.0, 0.0, 0.0, 1.0);
|
|
|
1849 } else {
|
|
|
1850 pattern = Cairo.cairo_pattern_create_linear (0.0, 0.0, 1.0, 0.0);
|
|
|
1851 }
|
|
|
1852 Cairo.cairo_pattern_add_color_stop_rgba (pattern, 0, fromRGB.red / 255f, fromRGB.green / 255f, fromRGB.blue / 255f, data.alpha / 255f);
|
|
|
1853 Cairo.cairo_pattern_add_color_stop_rgba (pattern, 1, toRGB.red / 255f, toRGB.green / 255f, toRGB.blue / 255f, data.alpha / 255f);
|
|
|
1854 Cairo.cairo_save(cairo);
|
|
|
1855 Cairo.cairo_translate(cairo, x, y);
|
|
|
1856 Cairo.cairo_scale(cairo, width, height);
|
|
|
1857 Cairo.cairo_rectangle(cairo, 0, 0, 1, 1);
|
|
|
1858 Cairo.cairo_set_source(cairo, pattern);
|
|
|
1859 Cairo.cairo_fill(cairo);
|
|
|
1860 Cairo.cairo_restore(cairo);
|
|
|
1861 Cairo.cairo_pattern_destroy(pattern);
|
|
|
1862 return;
|
|
|
1863 }
|
|
|
1864 ImageData.fillGradientRectangle(this, data.device,
|
|
|
1865 x, y, width, height, vertical, fromRGB, toRGB,
|
|
|
1866 8, 8, 8);
|
|
|
1867 }
|
|
|
1868
|
|
|
1869 /**
|
|
|
1870 * Fills the interior of an oval, within the specified
|
|
|
1871 * rectangular area, with the receiver's background
|
|
|
1872 * color.
|
|
|
1873 *
|
|
|
1874 * @param x the x coordinate of the upper left corner of the oval to be filled
|
|
|
1875 * @param y the y coordinate of the upper left corner of the oval to be filled
|
|
|
1876 * @param width the width of the oval to be filled
|
|
|
1877 * @param height the height of the oval to be filled
|
|
|
1878 *
|
|
|
1879 * @exception SWTException <ul>
|
|
|
1880 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1881 * </ul>
|
|
|
1882 *
|
|
|
1883 * @see #drawOval
|
|
|
1884 */
|
|
|
1885 public void fillOval(int x, int y, int width, int height) {
|
|
|
1886 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1887 checkGC(FILL);
|
|
|
1888 if (width < 0) {
|
|
|
1889 x = x + width;
|
|
|
1890 width = -width;
|
|
|
1891 }
|
|
|
1892 if (height < 0) {
|
|
|
1893 y = y + height;
|
|
|
1894 height = -height;
|
|
|
1895 }
|
|
|
1896 auto cairo = data.cairo;
|
|
|
1897 if (cairo !is null) {
|
|
|
1898 if (width is height) {
|
|
|
1899 Cairo.cairo_arc_negative(cairo, x + width / 2f, y + height / 2f, width / 2f, 0, 2 * cast(float)Compatibility.PI);
|
|
|
1900 } else {
|
|
|
1901 Cairo.cairo_save(cairo);
|
|
|
1902 Cairo.cairo_translate(cairo, x + width / 2f, y + height / 2f);
|
|
|
1903 Cairo.cairo_scale(cairo, width / 2f, height / 2f);
|
|
|
1904 Cairo.cairo_arc_negative(cairo, 0, 0, 1, 0, 2 * cast(float)Compatibility.PI);
|
|
|
1905 Cairo.cairo_restore(cairo);
|
|
|
1906 }
|
|
|
1907 Cairo.cairo_fill(cairo);
|
|
|
1908 return;
|
|
|
1909 }
|
|
|
1910 OS.gdk_draw_arc(data.drawable, handle, 1, x, y, width, height, 0, 23040);
|
|
|
1911 }
|
|
|
1912
|
|
|
1913 /**
|
|
|
1914 * Fills the path described by the parameter.
|
|
|
1915 * <p>
|
|
|
1916 * This operation requires the operating system's advanced
|
|
|
1917 * graphics subsystem which may not be available on some
|
|
|
1918 * platforms.
|
|
|
1919 * </p>
|
|
|
1920 *
|
|
|
1921 * @param path the path to fill
|
|
|
1922 *
|
|
|
1923 * @exception IllegalArgumentException <ul>
|
|
|
1924 * <li>ERROR_NULL_ARGUMENT - if the parameter is null</li>
|
|
|
1925 * <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed</li>
|
|
|
1926 * </ul>
|
|
|
1927 * @exception SWTException <ul>
|
|
|
1928 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1929 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li>
|
|
|
1930 * </ul>
|
|
|
1931 *
|
|
|
1932 * @see Path
|
|
|
1933 *
|
|
|
1934 * @since 3.1
|
|
|
1935 */
|
|
|
1936 public void fillPath (Path path) {
|
|
|
1937 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1938 if (path is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
1939 if (path.handle is null) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
1940 initCairo();
|
|
|
1941 checkGC(FILL);
|
|
|
1942 auto cairo = data.cairo;
|
|
|
1943 auto copy = Cairo.cairo_copy_path(path.handle);
|
|
|
1944 if (copy is null) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
1945 Cairo.cairo_append_path(cairo, copy);
|
|
|
1946 Cairo.cairo_path_destroy(copy);
|
|
|
1947 Cairo.cairo_fill(cairo);
|
|
|
1948 }
|
|
|
1949
|
|
|
1950 /**
|
|
|
1951 * Fills the interior of the closed polygon which is defined by the
|
|
|
1952 * specified array of integer coordinates, using the receiver's
|
|
|
1953 * background color. The array contains alternating x and y values
|
|
|
1954 * which are considered to represent points which are the vertices of
|
|
|
1955 * the polygon. Lines are drawn between each consecutive pair, and
|
|
|
1956 * between the first pair and last pair in the array.
|
|
|
1957 *
|
|
|
1958 * @param pointArray an array of alternating x and y values which are the vertices of the polygon
|
|
|
1959 *
|
|
|
1960 * @exception SWTException <ul>
|
|
|
1961 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1962 * </ul>
|
|
|
1963 *
|
|
|
1964 * @see #drawPolygon
|
|
|
1965 */
|
|
|
1966 public void fillPolygon(int[] pointArray) {
|
|
|
1967 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1968 // SWT extension: allow null array
|
|
|
1969 //if (pointArray is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
1970 checkGC(FILL);
|
|
|
1971 auto cairo = data.cairo;
|
|
|
1972 if (cairo !is null) {
|
|
|
1973 drawPolyline(cairo, pointArray, true);
|
|
|
1974 Cairo.cairo_fill(cairo);
|
|
|
1975 return;
|
|
|
1976 }
|
|
|
1977 OS.gdk_draw_polygon(data.drawable, handle, 1, cast(GdkPoint*)pointArray.ptr, pointArray.length / 2);
|
|
|
1978 }
|
|
|
1979
|
|
|
1980 /**
|
|
|
1981 * Fills the interior of the rectangle specified by the arguments,
|
|
|
1982 * using the receiver's background color.
|
|
|
1983 *
|
|
|
1984 * @param x the x coordinate of the rectangle to be filled
|
|
|
1985 * @param y the y coordinate of the rectangle to be filled
|
|
|
1986 * @param width the width of the rectangle to be filled
|
|
|
1987 * @param height the height of the rectangle to be filled
|
|
|
1988 *
|
|
|
1989 * @exception SWTException <ul>
|
|
|
1990 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
1991 * </ul>
|
|
|
1992 *
|
|
|
1993 * @see #drawRectangle(int, int, int, int)
|
|
|
1994 */
|
|
|
1995 public void fillRectangle(int x, int y, int width, int height) {
|
|
|
1996 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
1997 checkGC(FILL);
|
|
|
1998 if (width < 0) {
|
|
|
1999 x = x + width;
|
|
|
2000 width = -width;
|
|
|
2001 }
|
|
|
2002 if (height < 0) {
|
|
|
2003 y = y + height;
|
|
|
2004 height = -height;
|
|
|
2005 }
|
|
|
2006 auto cairo = data.cairo;
|
|
|
2007 if (cairo !is null) {
|
|
|
2008 Cairo.cairo_rectangle(cairo, x, y, width, height);
|
|
|
2009 Cairo.cairo_fill(cairo);
|
|
|
2010 return;
|
|
|
2011 }
|
|
|
2012 OS.gdk_draw_rectangle(data.drawable, handle, 1, x, y, width, height);
|
|
|
2013 }
|
|
|
2014
|
|
|
2015 /**
|
|
|
2016 * Fills the interior of the specified rectangle, using the receiver's
|
|
|
2017 * background color.
|
|
|
2018 *
|
|
|
2019 * @param rect the rectangle to be filled
|
|
|
2020 *
|
|
|
2021 * @exception IllegalArgumentException <ul>
|
|
|
2022 * <li>ERROR_NULL_ARGUMENT - if the rectangle is null</li>
|
|
|
2023 * </ul>
|
|
|
2024 * @exception SWTException <ul>
|
|
|
2025 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2026 * </ul>
|
|
|
2027 *
|
|
|
2028 * @see #drawRectangle(int, int, int, int)
|
|
|
2029 */
|
|
|
2030 public void fillRectangle(Rectangle rect) {
|
|
|
2031 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2032 if (rect is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
2033 fillRectangle(rect.x, rect.y, rect.width, rect.height);
|
|
|
2034 }
|
|
|
2035
|
|
|
2036 /**
|
|
|
2037 * Fills the interior of the round-cornered rectangle specified by
|
|
|
2038 * the arguments, using the receiver's background color.
|
|
|
2039 *
|
|
|
2040 * @param x the x coordinate of the rectangle to be filled
|
|
|
2041 * @param y the y coordinate of the rectangle to be filled
|
|
|
2042 * @param width the width of the rectangle to be filled
|
|
|
2043 * @param height the height of the rectangle to be filled
|
|
|
2044 * @param arcWidth the width of the arc
|
|
|
2045 * @param arcHeight the height of the arc
|
|
|
2046 *
|
|
|
2047 * @exception SWTException <ul>
|
|
|
2048 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2049 * </ul>
|
|
|
2050 *
|
|
|
2051 * @see #drawRoundRectangle
|
|
|
2052 */
|
|
|
2053 public void fillRoundRectangle(int x, int y, int width, int height, int arcWidth, int arcHeight) {
|
|
|
2054 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2055 checkGC(FILL);
|
|
|
2056 int nx = x;
|
|
|
2057 int ny = y;
|
|
|
2058 int nw = width;
|
|
|
2059 int nh = height;
|
|
|
2060 int naw = arcWidth;
|
|
|
2061 int nah = arcHeight;
|
|
|
2062 if (nw < 0) {
|
|
|
2063 nw = 0 - nw;
|
|
|
2064 nx = nx - nw;
|
|
|
2065 }
|
|
|
2066 if (nh < 0) {
|
|
|
2067 nh = 0 - nh;
|
|
|
2068 ny = ny -nh;
|
|
|
2069 }
|
|
|
2070 if (naw < 0) naw = 0 - naw;
|
|
|
2071 if (nah < 0) nah = 0 - nah;
|
|
|
2072 auto cairo = data.cairo;
|
|
|
2073 if (cairo !is null) {
|
|
|
2074 if (naw is 0 || nah is 0) {
|
|
|
2075 Cairo.cairo_rectangle(cairo, x, y, width, height);
|
|
|
2076 } else {
|
|
|
2077 float naw2 = naw / 2f;
|
|
|
2078 float nah2 = nah / 2f;
|
|
|
2079 float fw = nw / naw2;
|
|
|
2080 float fh = nh / nah2;
|
|
|
2081 Cairo.cairo_save(cairo);
|
|
|
2082 Cairo.cairo_translate(cairo, nx, ny);
|
|
|
2083 Cairo.cairo_scale(cairo, naw2, nah2);
|
|
|
2084 Cairo.cairo_move_to(cairo, fw - 1, 0);
|
|
|
2085 Cairo.cairo_arc(cairo, fw - 1, 1, 1, Compatibility.PI + Compatibility.PI/2.0, Compatibility.PI*2.0);
|
|
|
2086 Cairo.cairo_arc(cairo, fw - 1, fh - 1, 1, 0, Compatibility.PI/2.0);
|
|
|
2087 Cairo.cairo_arc(cairo, 1, fh - 1, 1, Compatibility.PI/2, Compatibility.PI);
|
|
|
2088 Cairo.cairo_arc(cairo, 1, 1, 1, Compatibility.PI, 270.0*Compatibility.PI/180.0);
|
|
|
2089 Cairo.cairo_close_path(cairo);
|
|
|
2090 Cairo.cairo_restore(cairo);
|
|
|
2091 }
|
|
|
2092 Cairo.cairo_fill(cairo);
|
|
|
2093 return;
|
|
|
2094 }
|
|
|
2095 int naw2 = naw / 2;
|
|
|
2096 int nah2 = nah / 2;
|
|
|
2097 auto drawable = data.drawable;
|
|
|
2098 if (nw > naw) {
|
|
|
2099 if (nh > nah) {
|
|
|
2100 OS.gdk_draw_arc(drawable, handle, 1, nx, ny, naw, nah, 5760, 5760);
|
|
|
2101 OS.gdk_draw_rectangle(drawable, handle, 1, nx + naw2, ny, nw - naw2 * 2, nh);
|
|
|
2102 OS.gdk_draw_arc(drawable, handle, 1, nx + nw - naw, ny, naw, nah, 0, 5760);
|
|
|
2103 OS.gdk_draw_rectangle(drawable, handle, 1, nx, ny + nah2, naw2, nh - nah2 * 2);
|
|
|
2104 OS.gdk_draw_arc(drawable, handle, 1, nx + nw - naw, ny + nh - nah, naw, nah, 17280, 5760);
|
|
|
2105 OS.gdk_draw_rectangle(drawable, handle, 1, nx + nw - naw2, ny + nah2, naw2, nh - nah2 * 2);
|
|
|
2106 OS.gdk_draw_arc(drawable, handle, 1, nx, ny + nh - nah, naw, nah, 11520, 5760);
|
|
|
2107 } else {
|
|
|
2108 OS.gdk_draw_arc(drawable, handle, 1, nx, ny, naw, nh, 5760, 11520);
|
|
|
2109 OS.gdk_draw_rectangle(drawable, handle, 1, nx + naw2, ny, nw - naw2 * 2, nh);
|
|
|
2110 OS.gdk_draw_arc(drawable, handle, 1, nx + nw - naw, ny, naw, nh, 17280, 11520);
|
|
|
2111 }
|
|
|
2112 } else {
|
|
|
2113 if (nh > nah) {
|
|
|
2114 OS.gdk_draw_arc(drawable, handle, 1, nx, ny, nw, nah, 0, 11520);
|
|
|
2115 OS.gdk_draw_rectangle(drawable, handle, 1, nx, ny + nah2, nw, nh - nah2 * 2);
|
|
|
2116 OS.gdk_draw_arc(drawable, handle, 1, nx, ny + nh - nah, nw, nah, 11520, 11520);
|
|
|
2117 } else {
|
|
|
2118 OS.gdk_draw_arc(drawable, handle, 1, nx, ny, nw, nh, 0, 23040);
|
|
|
2119 }
|
|
|
2120 }
|
|
|
2121 }
|
|
|
2122
|
|
|
2123 int fixMnemonic (char [] buffer) {
|
|
|
2124 int i=0, j=0;
|
|
|
2125 int mnemonic=-1;
|
|
|
2126 while (i < buffer.length) {
|
|
|
2127 if ((buffer [j++] = buffer [i++]) is '&') {
|
|
|
2128 if (i is buffer.length) {continue;}
|
|
|
2129 if (buffer [i] is '&') {i++; continue;}
|
|
|
2130 if (mnemonic is -1) mnemonic = j;
|
|
|
2131 j--;
|
|
|
2132 }
|
|
|
2133 }
|
|
|
2134 while (j < buffer.length) buffer [j++] = 0;
|
|
|
2135 return mnemonic;
|
|
|
2136 }
|
|
|
2137
|
|
|
2138 /**
|
|
|
2139 * Returns the <em>advance width</em> of the specified character in
|
|
|
2140 * the font which is currently selected into the receiver.
|
|
|
2141 * <p>
|
|
|
2142 * The advance width is defined as the horizontal distance the cursor
|
|
|
2143 * should move after printing the character in the selected font.
|
|
|
2144 * </p>
|
|
|
2145 *
|
|
|
2146 * @param ch the character to measure
|
|
|
2147 * @return the distance in the x direction to move past the character before painting the next
|
|
|
2148 *
|
|
|
2149 * @exception SWTException <ul>
|
|
|
2150 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2151 * </ul>
|
|
|
2152 */
|
|
|
2153 public int getAdvanceWidth(char ch) {
|
|
|
2154 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2155 //BOGUS
|
|
|
2156 return stringExtent([ch]).x;
|
|
|
2157 }
|
|
|
2158
|
|
|
2159 /**
|
|
|
2160 * Returns <code>true</code> if receiver is using the operating system's
|
|
|
2161 * advanced graphics subsystem. Otherwise, <code>false</code> is returned
|
|
|
2162 * to indicate that normal graphics are in use.
|
|
|
2163 * <p>
|
|
|
2164 * Advanced graphics may not be installed for the operating system. In this
|
|
|
2165 * case, <code>false</code> is always returned. Some operating system have
|
|
|
2166 * only one graphics subsystem. If this subsystem supports advanced graphics,
|
|
|
2167 * then <code>true</code> is always returned. If any graphics operation such
|
|
|
2168 * as alpha, antialias, patterns, interpolation, paths, clipping or transformation
|
|
|
2169 * has caused the receiver to switch from regular to advanced graphics mode,
|
|
|
2170 * <code>true</code> is returned. If the receiver has been explicitly switched
|
|
|
2171 * to advanced mode and this mode is supported, <code>true</code> is returned.
|
|
|
2172 * </p>
|
|
|
2173 *
|
|
|
2174 * @return the advanced value
|
|
|
2175 *
|
|
|
2176 * @exception SWTException <ul>
|
|
|
2177 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2178 * </ul>
|
|
|
2179 *
|
|
|
2180 * @see #setAdvanced
|
|
|
2181 *
|
|
|
2182 * @since 3.1
|
|
|
2183 */
|
|
|
2184 public bool getAdvanced() {
|
|
|
2185 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2186 return data.cairo !is null;
|
|
|
2187 }
|
|
|
2188
|
|
|
2189 /**
|
|
|
2190 * Returns the receiver's alpha value. The alpha value
|
|
|
2191 * is between 0 (transparent) and 255 (opaque).
|
|
|
2192 *
|
|
|
2193 * @return the alpha value
|
|
|
2194 *
|
|
|
2195 * @exception SWTException <ul>
|
|
|
2196 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2197 * </ul>
|
|
|
2198 *
|
|
|
2199 * @since 3.1
|
|
|
2200 */
|
|
|
2201 public int getAlpha() {
|
|
|
2202 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2203 return data.alpha;
|
|
|
2204 }
|
|
|
2205
|
|
|
2206 /**
|
|
|
2207 * Returns the receiver's anti-aliasing setting value, which will be
|
|
|
2208 * one of <code>SWT.DEFAULT</code>, <code>SWT.OFF</code> or
|
|
|
2209 * <code>SWT.ON</code>. Note that this controls anti-aliasing for all
|
|
|
2210 * <em>non-text drawing</em> operations.
|
|
|
2211 *
|
|
|
2212 * @return the anti-aliasing setting
|
|
|
2213 *
|
|
|
2214 * @exception SWTException <ul>
|
|
|
2215 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2216 * </ul>
|
|
|
2217 *
|
|
|
2218 * @see #getTextAntialias
|
|
|
2219 *
|
|
|
2220 * @since 3.1
|
|
|
2221 */
|
|
|
2222 public int getAntialias() {
|
|
|
2223 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2224 if (data.cairo is null) return SWT.DEFAULT;
|
|
|
2225 int antialias = Cairo.cairo_get_antialias(data.cairo);
|
|
|
2226 switch (antialias) {
|
|
|
2227 case Cairo.CAIRO_ANTIALIAS_DEFAULT: return SWT.DEFAULT;
|
|
|
2228 case Cairo.CAIRO_ANTIALIAS_NONE: return SWT.OFF;
|
|
|
2229 case Cairo.CAIRO_ANTIALIAS_GRAY:
|
|
|
2230 case Cairo.CAIRO_ANTIALIAS_SUBPIXEL: return SWT.ON;
|
|
|
2231 default:
|
|
|
2232 }
|
|
|
2233 return SWT.DEFAULT;
|
|
|
2234 }
|
|
|
2235
|
|
|
2236 /**
|
|
|
2237 * Returns the background color.
|
|
|
2238 *
|
|
|
2239 * @return the receiver's background color
|
|
|
2240 *
|
|
|
2241 * @exception SWTException <ul>
|
|
|
2242 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2243 * </ul>
|
|
|
2244 */
|
|
|
2245 public Color getBackground() {
|
|
|
2246 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2247 return Color.gtk_new(data.device, data.background);
|
|
|
2248 }
|
|
|
2249
|
|
|
2250 /**
|
|
|
2251 * Returns the background pattern. The default value is
|
|
|
2252 * <code>null</code>.
|
|
|
2253 *
|
|
|
2254 * @return the receiver's background pattern
|
|
|
2255 *
|
|
|
2256 * @exception SWTException <ul>
|
|
|
2257 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2258 * </ul>
|
|
|
2259 *
|
|
|
2260 * @see Pattern
|
|
|
2261 *
|
|
|
2262 * @since 3.1
|
|
|
2263 */
|
|
|
2264 public Pattern getBackgroundPattern() {
|
|
|
2265 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2266 return data.backgroundPattern;
|
|
|
2267 }
|
|
|
2268
|
|
|
2269 /**
|
|
|
2270 * Returns the width of the specified character in the font
|
|
|
2271 * selected into the receiver.
|
|
|
2272 * <p>
|
|
|
2273 * The width is defined as the space taken up by the actual
|
|
|
2274 * character, not including the leading and tailing whitespace
|
|
|
2275 * or overhang.
|
|
|
2276 * </p>
|
|
|
2277 *
|
|
|
2278 * @param ch the character to measure
|
|
|
2279 * @return the width of the character
|
|
|
2280 *
|
|
|
2281 * @exception SWTException <ul>
|
|
|
2282 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2283 * </ul>
|
|
|
2284 */
|
|
|
2285 public int getCharWidth(char ch) {
|
|
|
2286 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2287 //BOGUS
|
|
|
2288 return stringExtent([ch]).x;
|
|
|
2289 }
|
|
|
2290
|
|
|
2291 /**
|
|
|
2292 * Returns the bounding rectangle of the receiver's clipping
|
|
|
2293 * region. If no clipping region is set, the return value
|
|
|
2294 * will be a rectangle which covers the entire bounds of the
|
|
|
2295 * object the receiver is drawing on.
|
|
|
2296 *
|
|
|
2297 * @return the bounding rectangle of the clipping region
|
|
|
2298 *
|
|
|
2299 * @exception SWTException <ul>
|
|
|
2300 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2301 * </ul>
|
|
|
2302 */
|
|
|
2303 public Rectangle getClipping() {
|
|
|
2304 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2305 /* Calculate visible bounds in device space */
|
|
|
2306 int x = 0, y = 0, width = 0, height = 0;
|
|
|
2307 if (data.width !is -1 && data.height !is -1) {
|
|
|
2308 width = data.width;
|
|
|
2309 height = data.height;
|
|
|
2310 } else {
|
|
|
2311 int w, h;
|
|
|
2312 OS.gdk_drawable_get_size(data.drawable, &w, &h);
|
|
|
2313 width = w;
|
|
|
2314 height = h;
|
|
|
2315 }
|
|
|
2316 /* Intersect visible bounds with clipping in device space and then convert then to user space */
|
|
|
2317 auto cairo = data.cairo;
|
|
|
2318 auto clipRgn = data.clipRgn;
|
|
|
2319 auto damageRgn = data.damageRgn;
|
|
|
2320 if (clipRgn !is null || damageRgn !is null || cairo !is null) {
|
|
|
2321 auto rgn = OS.gdk_region_new();
|
|
|
2322 GdkRectangle rect;
|
|
|
2323 rect.width = width;
|
|
|
2324 rect.height = height;
|
|
|
2325 OS.gdk_region_union_with_rect(rgn, &rect);
|
|
|
2326 if (damageRgn !is null) {
|
|
|
2327 OS.gdk_region_intersect (rgn, damageRgn);
|
|
|
2328 }
|
|
|
2329 /* Intersect visible bounds with clipping */
|
|
|
2330 if (clipRgn !is null) {
|
|
|
2331 /* Convert clipping to device space if needed */
|
|
|
2332 if (data.clippingTransform !is null) {
|
|
|
2333 clipRgn = convertRgn(clipRgn, data.clippingTransform);
|
|
|
2334 OS.gdk_region_intersect(rgn, clipRgn);
|
|
|
2335 OS.gdk_region_destroy(clipRgn);
|
|
|
2336 } else {
|
|
|
2337 OS.gdk_region_intersect(rgn, clipRgn);
|
|
|
2338 }
|
|
|
2339 }
|
|
|
2340 /* Convert to user space */
|
|
|
2341 if (cairo !is null) {
|
|
|
2342 double[] matrix = new double[6];
|
|
|
2343 Cairo.cairo_get_matrix(cairo, cast(cairo_matrix_t*)matrix.ptr);
|
|
|
2344 Cairo.cairo_matrix_invert(cast(cairo_matrix_t*)matrix.ptr);
|
|
|
2345 clipRgn = convertRgn(rgn, matrix);
|
|
|
2346 OS.gdk_region_destroy(rgn);
|
|
|
2347 rgn = clipRgn;
|
|
|
2348 }
|
|
|
2349 OS.gdk_region_get_clipbox(rgn, &rect);
|
|
|
2350 OS.gdk_region_destroy(rgn);
|
|
|
2351 x = rect.x;
|
|
|
2352 y = rect.y;
|
|
|
2353 width = rect.width;
|
|
|
2354 height = rect.height;
|
|
|
2355 }
|
|
|
2356 return new Rectangle(x, y, width, height);
|
|
|
2357 }
|
|
|
2358
|
|
|
2359 /**
|
|
|
2360 * Sets the region managed by the argument to the current
|
|
|
2361 * clipping region of the receiver.
|
|
|
2362 *
|
|
|
2363 * @param region the region to fill with the clipping region
|
|
|
2364 *
|
|
|
2365 * @exception IllegalArgumentException <ul>
|
|
|
2366 * <li>ERROR_NULL_ARGUMENT - if the region is null</li>
|
|
|
2367 * <li>ERROR_INVALID_ARGUMENT - if the region is disposed</li>
|
|
|
2368 * </ul>
|
|
|
2369 * @exception SWTException <ul>
|
|
|
2370 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2371 * </ul>
|
|
|
2372 */
|
|
|
2373 public void getClipping(Region region) {
|
|
|
2374 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2375 if (region is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
2376 if (region.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
2377 auto clipping = region.handle;
|
|
|
2378 OS.gdk_region_subtract(clipping, clipping);
|
|
|
2379 auto cairo = data.cairo;
|
|
|
2380 auto clipRgn = data.clipRgn;
|
|
|
2381 if (clipRgn is null) {
|
|
|
2382 GdkRectangle rect;
|
|
|
2383 if (data.width !is -1 && data.height !is -1) {
|
|
|
2384 rect.width = data.width;
|
|
|
2385 rect.height = data.height;
|
|
|
2386 } else {
|
|
|
2387 int width, height;
|
|
|
2388 OS.gdk_drawable_get_size(data.drawable, &width, &height);
|
|
|
2389 rect.width = width;
|
|
|
2390 rect.height = height;
|
|
|
2391 }
|
|
|
2392 OS.gdk_region_union_with_rect(clipping, &rect);
|
|
|
2393 } else {
|
|
|
2394 /* Convert clipping to device space if needed */
|
|
|
2395 if (data.clippingTransform !is null) {
|
|
|
2396 auto rgn = convertRgn(clipRgn, data.clippingTransform);
|
|
|
2397 OS.gdk_region_union(clipping, rgn);
|
|
|
2398 OS.gdk_region_destroy(rgn);
|
|
|
2399 } else {
|
|
|
2400 OS.gdk_region_union(clipping, clipRgn);
|
|
|
2401 }
|
|
|
2402 }
|
|
|
2403 if (data.damageRgn !is null) {
|
|
|
2404 OS.gdk_region_intersect(clipping, data.damageRgn);
|
|
|
2405 }
|
|
|
2406 /* Convert to user space */
|
|
|
2407 if (cairo !is null) {
|
|
|
2408 double[] matrix = new double[6];
|
|
|
2409 Cairo.cairo_get_matrix(cairo, cast(cairo_matrix_t*)matrix.ptr);
|
|
|
2410 Cairo.cairo_matrix_invert(cast(cairo_matrix_t*)matrix.ptr);
|
|
|
2411 auto rgn = convertRgn(clipping, matrix);
|
|
|
2412 OS.gdk_region_subtract(clipping, clipping);
|
|
|
2413 OS.gdk_region_union(clipping, rgn);
|
|
|
2414 OS.gdk_region_destroy(rgn);
|
|
|
2415 }
|
|
|
2416 }
|
|
|
2417
|
|
|
2418 /**
|
|
|
2419 * Returns the receiver's fill rule, which will be one of
|
|
|
2420 * <code>SWT.FILL_EVEN_ODD</code> or <code>SWT.FILL_WINDING</code>.
|
|
|
2421 *
|
|
|
2422 * @return the receiver's fill rule
|
|
|
2423 *
|
|
|
2424 * @exception SWTException <ul>
|
|
|
2425 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2426 * </ul>
|
|
|
2427 *
|
|
|
2428 * @since 3.1
|
|
|
2429 */
|
|
|
2430 public int getFillRule() {
|
|
|
2431 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2432 auto cairo = data.cairo;
|
|
|
2433 if (cairo is null) return SWT.FILL_EVEN_ODD;
|
|
|
2434 return Cairo.cairo_get_fill_rule(cairo) is Cairo.CAIRO_FILL_RULE_WINDING ? SWT.FILL_WINDING : SWT.FILL_EVEN_ODD;
|
|
|
2435 }
|
|
|
2436
|
|
|
2437 /**
|
|
|
2438 * Returns the font currently being used by the receiver
|
|
|
2439 * to draw and measure text.
|
|
|
2440 *
|
|
|
2441 * @return the receiver's font
|
|
|
2442 *
|
|
|
2443 * @exception SWTException <ul>
|
|
|
2444 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2445 * </ul>
|
|
|
2446 */
|
|
|
2447 public Font getFont() {
|
|
|
2448 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2449 return data.font;
|
|
|
2450 }
|
|
|
2451
|
|
|
2452 /**
|
|
|
2453 * Returns a FontMetrics which contains information
|
|
|
2454 * about the font currently being used by the receiver
|
|
|
2455 * to draw and measure text.
|
|
|
2456 *
|
|
|
2457 * @return font metrics for the receiver's font
|
|
|
2458 *
|
|
|
2459 * @exception SWTException <ul>
|
|
|
2460 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2461 * </ul>
|
|
|
2462 */
|
|
|
2463 public FontMetrics getFontMetrics() {
|
|
|
2464 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2465 if (data.context is null) createLayout();
|
|
|
2466 checkGC(FONT);
|
|
|
2467 Font font = data.font;
|
|
|
2468 auto context = data.context;
|
|
|
2469 auto lang = OS.pango_context_get_language(context);
|
|
|
2470 auto metrics = OS.pango_context_get_metrics(context, font.handle, lang);
|
|
|
2471 FontMetrics fm = new FontMetrics();
|
|
|
2472 fm.ascent = OS.PANGO_PIXELS(OS.pango_font_metrics_get_ascent(metrics));
|
|
|
2473 fm.descent = OS.PANGO_PIXELS(OS.pango_font_metrics_get_descent(metrics));
|
|
|
2474 fm.averageCharWidth = OS.PANGO_PIXELS(OS.pango_font_metrics_get_approximate_char_width(metrics));
|
|
|
2475 fm.height = fm.ascent + fm.descent;
|
|
|
2476 OS.pango_font_metrics_unref(metrics);
|
|
|
2477 return fm;
|
|
|
2478 }
|
|
|
2479
|
|
|
2480 /**
|
|
|
2481 * Returns the receiver's foreground color.
|
|
|
2482 *
|
|
|
2483 * @return the color used for drawing foreground things
|
|
|
2484 *
|
|
|
2485 * @exception SWTException <ul>
|
|
|
2486 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2487 * </ul>
|
|
|
2488 */
|
|
|
2489 public Color getForeground() {
|
|
|
2490 if (handle is null) SWT.error(SWT.ERROR_WIDGET_DISPOSED);
|
|
|
2491 return Color.gtk_new(data.device, data.foreground);
|
|
|
2492 }
|
|
|
2493
|
|
|
2494 /**
|
|
|
2495 * Returns the foreground pattern. The default value is
|
|
|
2496 * <code>null</code>.
|
|
|
2497 *
|
|
|
2498 * @return the receiver's foreground pattern
|
|
|
2499 *
|
|
|
2500 * @exception SWTException <ul>
|
|
|
2501 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2502 * </ul>
|
|
|
2503 *
|
|
|
2504 * @see Pattern
|
|
|
2505 *
|
|
|
2506 * @since 3.1
|
|
|
2507 */
|
|
|
2508 public Pattern getForegroundPattern() {
|
|
|
2509 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2510 return data.foregroundPattern;
|
|
|
2511 }
|
|
|
2512
|
|
|
2513 /**
|
|
|
2514 * Returns the GCData.
|
|
|
2515 * <p>
|
|
|
2516 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public
|
|
|
2517 * API for <code>GC</code>. It is marked public only so that it
|
|
|
2518 * can be shared within the packages provided by SWT. It is not
|
|
|
2519 * available on all platforms, and should never be called from
|
|
|
2520 * application code.
|
|
|
2521 * </p>
|
|
|
2522 *
|
|
|
2523 * @return the receiver's GCData
|
|
|
2524 *
|
|
|
2525 * @exception SWTException <ul>
|
|
|
2526 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2527 * </ul>
|
|
|
2528 *
|
|
|
2529 * @see GCData
|
|
|
2530 *
|
|
|
2531 * @since 3.2
|
|
|
2532 */
|
|
|
2533 public GCData getGCData() {
|
|
|
2534 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2535 return data;
|
|
|
2536 }
|
|
|
2537
|
|
|
2538 /**
|
|
|
2539 * Returns the receiver's interpolation setting, which will be one of
|
|
|
2540 * <code>SWT.DEFAULT</code>, <code>SWT.NONE</code>,
|
|
|
2541 * <code>SWT.LOW</code> or <code>SWT.HIGH</code>.
|
|
|
2542 *
|
|
|
2543 * @return the receiver's interpolation setting
|
|
|
2544 *
|
|
|
2545 * @exception SWTException <ul>
|
|
|
2546 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2547 * </ul>
|
|
|
2548 *
|
|
|
2549 * @since 3.1
|
|
|
2550 */
|
|
|
2551 public int getInterpolation() {
|
|
|
2552 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2553 return data.interpolation;
|
|
|
2554 }
|
|
|
2555
|
|
|
2556 /**
|
|
|
2557 * Returns the receiver's line attributes.
|
|
|
2558 *
|
|
|
2559 * @return the line attributes used for drawing lines
|
|
|
2560 *
|
|
|
2561 * @exception SWTException <ul>
|
|
|
2562 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2563 * </ul>
|
|
|
2564 *
|
|
|
2565 * @since 3.3
|
|
|
2566 */
|
|
|
2567 public LineAttributes getLineAttributes() {
|
|
|
2568 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2569 float[] dashes = null;
|
|
|
2570 if (data.lineDashes !is null) {
|
|
|
2571 dashes = new float[data.lineDashes.length];
|
|
|
2572 System.arraycopy(data.lineDashes, 0, dashes, 0, dashes.length);
|
|
|
2573 }
|
|
|
2574 return new LineAttributes(data.lineWidth, data.lineCap, data.lineJoin, data.lineStyle, dashes, data.lineDashesOffset, data.lineMiterLimit);
|
|
|
2575 }
|
|
|
2576
|
|
|
2577 /**
|
|
|
2578 * Returns the receiver's line cap style, which will be one
|
|
|
2579 * of the constants <code>SWT.CAP_FLAT</code>, <code>SWT.CAP_ROUND</code>,
|
|
|
2580 * or <code>SWT.CAP_SQUARE</code>.
|
|
|
2581 *
|
|
|
2582 * @return the cap style used for drawing lines
|
|
|
2583 *
|
|
|
2584 * @exception SWTException <ul>
|
|
|
2585 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2586 * </ul>
|
|
|
2587 *
|
|
|
2588 * @since 3.1
|
|
|
2589 */
|
|
|
2590 public int getLineCap() {
|
|
|
2591 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2592 return data.lineCap;
|
|
|
2593 }
|
|
|
2594
|
|
|
2595 /**
|
|
|
2596 * Returns the receiver's line dash style. The default value is
|
|
|
2597 * <code>null</code>.
|
|
|
2598 *
|
|
|
2599 * @return the line dash style used for drawing lines
|
|
|
2600 *
|
|
|
2601 * @exception SWTException <ul>
|
|
|
2602 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2603 * </ul>
|
|
|
2604 *
|
|
|
2605 * @since 3.1
|
|
|
2606 */
|
|
|
2607 public int[] getLineDash() {
|
|
|
2608 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2609 if (data.lineDashes is null) return null;
|
|
|
2610 int[] lineDashes = new int[data.lineDashes.length];
|
|
|
2611 for (int i = 0; i < lineDashes.length; i++) {
|
|
|
2612 lineDashes[i] = cast(int)data.lineDashes[i];
|
|
|
2613 }
|
|
|
2614 return lineDashes;
|
|
|
2615 }
|
|
|
2616
|
|
|
2617 /**
|
|
|
2618 * Returns the receiver's line join style, which will be one
|
|
|
2619 * of the constants <code>SWT.JOIN_MITER</code>, <code>SWT.JOIN_ROUND</code>,
|
|
|
2620 * or <code>SWT.JOIN_BEVEL</code>.
|
|
|
2621 *
|
|
|
2622 * @return the join style used for drawing lines
|
|
|
2623 *
|
|
|
2624 * @exception SWTException <ul>
|
|
|
2625 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2626 * </ul>
|
|
|
2627 *
|
|
|
2628 * @since 3.1
|
|
|
2629 */
|
|
|
2630 public int getLineJoin() {
|
|
|
2631 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2632 return data.lineJoin;
|
|
|
2633 }
|
|
|
2634
|
|
|
2635 /**
|
|
|
2636 * Returns the receiver's line style, which will be one
|
|
|
2637 * of the constants <code>SWT.LINE_SOLID</code>, <code>SWT.LINE_DASH</code>,
|
|
|
2638 * <code>SWT.LINE_DOT</code>, <code>SWT.LINE_DASHDOT</code> or
|
|
|
2639 * <code>SWT.LINE_DASHDOTDOT</code>.
|
|
|
2640 *
|
|
|
2641 * @return the style used for drawing lines
|
|
|
2642 *
|
|
|
2643 * @exception SWTException <ul>
|
|
|
2644 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2645 * </ul>
|
|
|
2646 */
|
|
|
2647 public int getLineStyle() {
|
|
|
2648 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2649 return data.lineStyle;
|
|
|
2650 }
|
|
|
2651
|
|
|
2652 /**
|
|
|
2653 * Returns the width that will be used when drawing lines
|
|
|
2654 * for all of the figure drawing operations (that is,
|
|
|
2655 * <code>drawLine</code>, <code>drawRectangle</code>,
|
|
|
2656 * <code>drawPolyline</code>, and so forth.
|
|
|
2657 *
|
|
|
2658 * @return the receiver's line width
|
|
|
2659 *
|
|
|
2660 * @exception SWTException <ul>
|
|
|
2661 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2662 * </ul>
|
|
|
2663 */
|
|
|
2664 public int getLineWidth() {
|
|
|
2665 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2666 return cast(int)data.lineWidth;
|
|
|
2667 }
|
|
|
2668
|
|
|
2669 /**
|
|
|
2670 * Returns the receiver's style information.
|
|
|
2671 * <p>
|
|
|
2672 * Note that the value which is returned by this method <em>may
|
|
|
2673 * not match</em> the value which was provided to the constructor
|
|
|
2674 * when the receiver was created. This can occur when the underlying
|
|
|
2675 * operating system does not support a particular combination of
|
|
|
2676 * requested styles.
|
|
|
2677 * </p>
|
|
|
2678 *
|
|
|
2679 * @return the style bits
|
|
|
2680 *
|
|
|
2681 * @exception SWTException <ul>
|
|
|
2682 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2683 * </ul>
|
|
|
2684 *
|
|
|
2685 * @since 2.1.2
|
|
|
2686 */
|
|
|
2687 public int getStyle () {
|
|
|
2688 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2689 return data.style;
|
|
|
2690 }
|
|
|
2691
|
|
|
2692 /**
|
|
|
2693 * Returns the receiver's text drawing anti-aliasing setting value,
|
|
|
2694 * which will be one of <code>SWT.DEFAULT</code>, <code>SWT.OFF</code> or
|
|
|
2695 * <code>SWT.ON</code>. Note that this controls anti-aliasing
|
|
|
2696 * <em>only</em> for text drawing operations.
|
|
|
2697 *
|
|
|
2698 * @return the anti-aliasing setting
|
|
|
2699 *
|
|
|
2700 * @exception SWTException <ul>
|
|
|
2701 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2702 * </ul>
|
|
|
2703 *
|
|
|
2704 * @see #getAntialias
|
|
|
2705 *
|
|
|
2706 * @since 3.1
|
|
|
2707 */
|
|
|
2708 public int getTextAntialias() {
|
|
|
2709 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2710 if (data.cairo is null) return SWT.DEFAULT;
|
|
|
2711 int antialias = Cairo.CAIRO_ANTIALIAS_DEFAULT;
|
|
|
2712 if (OS.GTK_VERSION < OS.buildVERSION(2, 8, 0)) {
|
|
|
2713 auto options = Cairo.cairo_font_options_create();
|
|
|
2714 Cairo.cairo_get_font_options(data.cairo, options);
|
|
|
2715 antialias = Cairo.cairo_font_options_get_antialias(options);
|
|
|
2716 Cairo.cairo_font_options_destroy(options);
|
|
|
2717 } else {
|
|
|
2718 if (data.context !is null) {
|
|
|
2719 auto options = OS.pango_cairo_context_get_font_options(data.context);
|
|
|
2720 if (options !is null) antialias = Cairo.cairo_font_options_get_antialias(options);
|
|
|
2721 }
|
|
|
2722 }
|
|
|
2723 switch (antialias) {
|
|
|
2724 case Cairo.CAIRO_ANTIALIAS_DEFAULT: return SWT.DEFAULT;
|
|
|
2725 case Cairo.CAIRO_ANTIALIAS_NONE: return SWT.OFF;
|
|
|
2726 case Cairo.CAIRO_ANTIALIAS_GRAY:
|
|
|
2727 case Cairo.CAIRO_ANTIALIAS_SUBPIXEL: return SWT.ON;
|
|
|
2728 default:
|
|
|
2729 }
|
|
|
2730 return SWT.DEFAULT;
|
|
|
2731 }
|
|
|
2732
|
|
|
2733 /**
|
|
|
2734 * Sets the parameter to the transform that is currently being
|
|
|
2735 * used by the receiver.
|
|
|
2736 *
|
|
|
2737 * @param transform the destination to copy the transform into
|
|
|
2738 *
|
|
|
2739 * @exception IllegalArgumentException <ul>
|
|
|
2740 * <li>ERROR_NULL_ARGUMENT - if the parameter is null</li>
|
|
|
2741 * <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed</li>
|
|
|
2742 * </ul>
|
|
|
2743 * @exception SWTException <ul>
|
|
|
2744 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2745 * </ul>
|
|
|
2746 *
|
|
|
2747 * @see Transform
|
|
|
2748 *
|
|
|
2749 * @since 3.1
|
|
|
2750 */
|
|
|
2751 public void getTransform(Transform transform) {
|
|
|
2752 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2753 if (transform is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
2754 if (transform.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
2755 auto cairo = data.cairo;
|
|
|
2756 if (cairo !is null) {
|
|
|
2757 Cairo.cairo_get_matrix(cairo, cast(cairo_matrix_t*)transform.handle.ptr);
|
|
|
2758 double[] identity = identity();
|
|
|
2759 Cairo.cairo_matrix_invert(cast(cairo_matrix_t*)identity.ptr);
|
|
|
2760 Cairo.cairo_matrix_multiply(cast(cairo_matrix_t*)transform.handle.ptr, cast(cairo_matrix_t*)transform.handle.ptr, cast(cairo_matrix_t*)identity.ptr);
|
|
|
2761 } else {
|
|
|
2762 transform.setElements(1, 0, 0, 1, 0, 0);
|
|
|
2763 }
|
|
|
2764 }
|
|
|
2765
|
|
|
2766 /**
|
|
|
2767 * Returns <code>true</code> if this GC is drawing in the mode
|
|
|
2768 * where the resulting color in the destination is the
|
|
|
2769 * <em>exclusive or</em> of the color values in the source
|
|
|
2770 * and the destination, and <code>false</code> if it is
|
|
|
2771 * drawing in the mode where the destination color is being
|
|
|
2772 * replaced with the source color value.
|
|
|
2773 *
|
|
|
2774 * @return <code>true</code> true if the receiver is in XOR mode, and false otherwise
|
|
|
2775 *
|
|
|
2776 * @exception SWTException <ul>
|
|
|
2777 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2778 * </ul>
|
|
|
2779 */
|
|
|
2780 public bool getXORMode() {
|
|
|
2781 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2782 return data.xorMode;
|
|
|
2783 }
|
|
|
2784
|
|
|
2785 /**
|
|
|
2786 * Returns an integer hash code for the receiver. Any two
|
|
|
2787 * objects that return <code>true</code> when passed to
|
|
|
2788 * <code>equals</code> must return the same value for this
|
|
|
2789 * method.
|
|
|
2790 *
|
|
|
2791 * @return the receiver's hash
|
|
|
2792 *
|
|
|
2793 * @exception SWTException <ul>
|
|
|
2794 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2795 * </ul>
|
|
|
2796 *
|
|
|
2797 * @see #equals
|
|
|
2798 */
|
|
|
2799 public override hash_t toHash() {
|
|
|
2800 return cast(hash_t)/*64*/handle;
|
|
|
2801 }
|
|
|
2802
|
|
|
2803 double[] identity() {
|
|
|
2804 double[] identity = new double[6];
|
|
|
2805 if ((data.style & SWT.MIRRORED) !is 0) {
|
|
|
2806 int w, h;
|
|
|
2807 OS.gdk_drawable_get_size(data.drawable, &w, &h);
|
|
|
2808 Cairo.cairo_matrix_init(cast(cairo_matrix_t*)identity.ptr, -1, 0, 0, 1, w, 0);
|
|
|
2809 } else {
|
|
|
2810 Cairo.cairo_matrix_init_identity(cast(cairo_matrix_t*)identity.ptr);
|
|
|
2811 }
|
|
|
2812 return identity;
|
|
|
2813 }
|
|
|
2814
|
|
|
2815 void init_(Drawable drawable, GCData data, GdkGC* gdkGC) {
|
|
|
2816 if (data.foreground !is null) data.state &= ~FOREGROUND;
|
|
|
2817 if (data.background !is null) data.state &= ~(BACKGROUND | BACKGROUND_BG);
|
|
|
2818 if (data.font !is null) data.state &= ~FONT;
|
|
|
2819
|
|
|
2820 Image image = data.image;
|
|
|
2821 if (image !is null) {
|
|
|
2822 image.memGC = this;
|
|
|
2823 /*
|
|
|
2824 * The transparent pixel mask might change when drawing on
|
|
|
2825 * the image. Destroy it so that it is regenerated when
|
|
|
2826 * necessary.
|
|
|
2827 */
|
|
|
2828 if (image.transparentPixel !is -1) image.destroyMask();
|
|
|
2829 }
|
|
|
2830 this.drawable = drawable;
|
|
|
2831 this.data = data;
|
|
|
2832 handle = gdkGC;
|
|
|
2833 if ((data.style & SWT.MIRRORED) !is 0) {
|
|
|
2834 initCairo();
|
|
|
2835 auto cairo = data.cairo;
|
|
|
2836 Cairo.cairo_set_matrix(cairo, cast(cairo_matrix_t*) identity().ptr);
|
|
|
2837 }
|
|
|
2838 }
|
|
|
2839
|
|
|
2840 void initCairo() {
|
|
|
2841 data.device.checkCairo();
|
|
|
2842 auto cairo = data.cairo;
|
|
|
2843 if (cairo !is null) return;
|
|
|
2844 auto xDisplay = OS.GDK_DISPLAY();
|
|
|
2845 auto xVisual = OS.gdk_x11_visual_get_xvisual(OS.gdk_visual_get_system());
|
|
|
2846 uint xDrawable;
|
|
|
2847 int translateX = 0, translateY = 0;
|
|
|
2848 auto drawable = data.drawable;
|
|
|
2849 if (data.image !is null) {
|
|
|
2850 xDrawable = OS.GDK_PIXMAP_XID(drawable);
|
|
|
2851 } else {
|
|
|
2852 if (!data.realDrawable) {
|
|
|
2853 int x, y;
|
|
|
2854 GdkDrawable* real_drawable;
|
|
|
2855 OS.gdk_window_get_internal_paint_info(cast(GdkWindow*)drawable, &real_drawable, &x, &y);
|
|
|
2856 xDrawable = OS.gdk_x11_drawable_get_xid(real_drawable);
|
|
|
2857 translateX = -x;
|
|
|
2858 translateY = -y;
|
|
|
2859 }
|
|
|
2860 }
|
|
|
2861 int w, h;
|
|
|
2862 OS.gdk_drawable_get_size(drawable, &w, &h);
|
|
|
2863 int width = w, height = h;
|
|
|
2864 auto surface = Cairo.cairo_xlib_surface_create(cast(void*)xDisplay, xDrawable, xVisual, width, height);
|
|
|
2865 if (surface is null) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
2866 Cairo.cairo_surface_set_device_offset(surface, translateX, translateY);
|
|
|
2867 data.cairo = cairo = Cairo.cairo_create(surface);
|
|
|
2868 Cairo.cairo_surface_destroy(surface);
|
|
|
2869 if (cairo is null) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
2870 data.disposeCairo = true;
|
|
|
2871 Cairo.cairo_set_fill_rule(cairo, Cairo.CAIRO_FILL_RULE_EVEN_ODD);
|
|
|
2872 data.state &= ~(BACKGROUND | FOREGROUND | FONT | LINE_WIDTH | LINE_CAP | LINE_JOIN | LINE_STYLE | DRAW_OFFSET);
|
|
|
2873 setCairoClip(cairo, data.clipRgn);
|
|
|
2874 }
|
|
|
2875
|
|
|
2876 /**
|
|
|
2877 * Returns <code>true</code> if the receiver has a clipping
|
|
|
2878 * region set into it, and <code>false</code> otherwise.
|
|
|
2879 * If this method returns false, the receiver will draw on all
|
|
|
2880 * available space in the destination. If it returns true,
|
|
|
2881 * it will draw only in the area that is covered by the region
|
|
|
2882 * that can be accessed with <code>getClipping(region)</code>.
|
|
|
2883 *
|
|
|
2884 * @return <code>true</code> if the GC has a clipping region, and <code>false</code> otherwise
|
|
|
2885 *
|
|
|
2886 * @exception SWTException <ul>
|
|
|
2887 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2888 * </ul>
|
|
|
2889 */
|
|
|
2890 public bool isClipped() {
|
|
|
2891 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2892 return data.clipRgn !is null;
|
|
|
2893 }
|
|
|
2894
|
|
|
2895 /**
|
|
|
2896 * Returns <code>true</code> if the GC has been disposed,
|
|
|
2897 * and <code>false</code> otherwise.
|
|
|
2898 * <p>
|
|
|
2899 * This method gets the dispose state for the GC.
|
|
|
2900 * When a GC has been disposed, it is an error to
|
|
|
2901 * invoke any other method using the GC.
|
|
|
2902 *
|
|
|
2903 * @return <code>true</code> when the GC is disposed and <code>false</code> otherwise
|
|
|
2904 */
|
|
|
2905 public override bool isDisposed() {
|
|
|
2906 return handle is null;
|
|
|
2907 }
|
|
|
2908
|
|
|
2909 bool isIdentity(double[] matrix) {
|
|
|
2910 if (matrix is null) return true;
|
|
|
2911 return matrix[0] is 1 && matrix[1] is 0 && matrix[2] is 0 && matrix[3] is 1 && matrix[4] is 0 && matrix[5] is 0;
|
|
|
2912 }
|
|
|
2913
|
|
|
2914 /**
|
|
|
2915 * Sets the receiver to always use the operating system's advanced graphics
|
|
|
2916 * subsystem for all graphics operations if the argument is <code>true</code>.
|
|
|
2917 * If the argument is <code>false</code>, the advanced graphics subsystem is
|
|
|
2918 * no longer used, advanced graphics state is cleared and the normal graphics
|
|
|
2919 * subsystem is used from now on.
|
|
|
2920 * <p>
|
|
|
2921 * Normally, the advanced graphics subsystem is invoked automatically when
|
|
|
2922 * any one of the alpha, antialias, patterns, interpolation, paths, clipping
|
|
|
2923 * or transformation operations in the receiver is requested. When the receiver
|
|
|
2924 * is switched into advanced mode, the advanced graphics subsystem performs both
|
|
|
2925 * advanced and normal graphics operations. Because the two subsystems are
|
|
|
2926 * different, their output may differ. Switching to advanced graphics before
|
|
|
2927 * any graphics operations are performed ensures that the output is consistent.
|
|
|
2928 * </p><p>
|
|
|
2929 * Advanced graphics may not be installed for the operating system. In this
|
|
|
2930 * case, this operation does nothing. Some operating system have only one
|
|
|
2931 * graphics subsystem, so switching from normal to advanced graphics does
|
|
|
2932 * nothing. However, switching from advanced to normal graphics will always
|
|
|
2933 * clear the advanced graphics state, even for operating systems that have
|
|
|
2934 * only one graphics subsystem.
|
|
|
2935 * </p>
|
|
|
2936 *
|
|
|
2937 * @param advanced the new advanced graphics state
|
|
|
2938 *
|
|
|
2939 * @exception SWTException <ul>
|
|
|
2940 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
2941 * </ul>
|
|
|
2942 *
|
|
|
2943 * @see #setAlpha
|
|
|
2944 * @see #setAntialias
|
|
|
2945 * @see #setBackgroundPattern
|
|
|
2946 * @see #setClipping(Path)
|
|
|
2947 * @see #setForegroundPattern
|
|
|
2948 * @see #setLineAttributes
|
|
|
2949 * @see #setInterpolation
|
|
|
2950 * @see #setTextAntialias
|
|
|
2951 * @see #setTransform
|
|
|
2952 * @see #getAdvanced
|
|
|
2953 *
|
|
|
2954 * @since 3.1
|
|
|
2955 */
|
|
|
2956 public void setAdvanced(bool advanced) {
|
|
|
2957 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
2958 if ((data.style & SWT.MIRRORED) !is 0) {
|
|
|
2959 if (!advanced) {
|
|
|
2960 setAlpha(0xFF);
|
|
|
2961 setAntialias(SWT.DEFAULT);
|
|
|
2962 setBackgroundPattern(null);
|
|
|
2963 setClipping(cast(GdkRegion*)null);
|
|
|
2964 setForegroundPattern(null);
|
|
|
2965 setInterpolation(SWT.DEFAULT);
|
|
|
2966 setTextAntialias(SWT.DEFAULT);
|
|
|
2967 setTransform(null);
|
|
|
2968 }
|
|
|
2969 return;
|
|
|
2970 }
|
|
|
2971 if (advanced && data.cairo !is null) return;
|
|
|
2972 if (advanced) {
|
|
|
2973 try {
|
|
|
2974 initCairo();
|
|
|
2975 } catch (SWTException e) {}
|
|
|
2976 } else {
|
|
|
2977 if (!data.disposeCairo) return;
|
|
|
2978 auto cairo = data.cairo;
|
|
|
2979 if (cairo !is null) Cairo.cairo_destroy(cairo);
|
|
|
2980 data.cairo = null;
|
|
|
2981 data.interpolation = SWT.DEFAULT;
|
|
|
2982 data.backgroundPattern = data.foregroundPattern = null;
|
|
|
2983 data.state = 0;
|
|
|
2984 setClipping(cast(GdkRegion*)null);
|
|
|
2985 }
|
|
|
2986 }
|
|
|
2987
|
|
|
2988 /**
|
|
|
2989 * Sets the receiver's alpha value which must be
|
|
|
2990 * between 0 (transparent) and 255 (opaque).
|
|
|
2991 * <p>
|
|
|
2992 * This operation requires the operating system's advanced
|
|
|
2993 * graphics subsystem which may not be available on some
|
|
|
2994 * platforms.
|
|
|
2995 * </p>
|
|
|
2996 * @param alpha the alpha value
|
|
|
2997 *
|
|
|
2998 * @exception SWTException <ul>
|
|
|
2999 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3000 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li>
|
|
|
3001 * </ul>
|
|
|
3002 *
|
|
|
3003 * @see #getAdvanced
|
|
|
3004 * @see #setAdvanced
|
|
|
3005 *
|
|
|
3006 * @since 3.1
|
|
|
3007 */
|
|
|
3008 public void setAlpha(int alpha) {
|
|
|
3009 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3010 if (data.cairo is null && (alpha & 0xff) is 0xff) return;
|
|
|
3011 initCairo();
|
|
|
3012 data.alpha = alpha & 0xff;
|
|
|
3013 data.state &= ~(BACKGROUND | FOREGROUND | BACKGROUND_BG);
|
|
|
3014 }
|
|
|
3015
|
|
|
3016 /**
|
|
|
3017 * Sets the receiver's anti-aliasing value to the parameter,
|
|
|
3018 * which must be one of <code>SWT.DEFAULT</code>, <code>SWT.OFF</code>
|
|
|
3019 * or <code>SWT.ON</code>. Note that this controls anti-aliasing for all
|
|
|
3020 * <em>non-text drawing</em> operations.
|
|
|
3021 * <p>
|
|
|
3022 * This operation requires the operating system's advanced
|
|
|
3023 * graphics subsystem which may not be available on some
|
|
|
3024 * platforms.
|
|
|
3025 * </p>
|
|
|
3026 *
|
|
|
3027 * @param antialias the anti-aliasing setting
|
|
|
3028 *
|
|
|
3029 * @exception IllegalArgumentException <ul>
|
|
|
3030 * <li>ERROR_INVALID_ARGUMENT - if the parameter is not one of <code>SWT.DEFAULT</code>,
|
|
|
3031 * <code>SWT.OFF</code> or <code>SWT.ON</code></li>
|
|
|
3032 * </ul>
|
|
|
3033 * @exception SWTException <ul>
|
|
|
3034 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3035 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li>
|
|
|
3036 * </ul>
|
|
|
3037 *
|
|
|
3038 * @see #getAdvanced
|
|
|
3039 * @see #setAdvanced
|
|
|
3040 * @see #setTextAntialias
|
|
|
3041 *
|
|
|
3042 * @since 3.1
|
|
|
3043 */
|
|
|
3044 public void setAntialias(int antialias) {
|
|
|
3045 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3046 if (data.cairo is null && antialias is SWT.DEFAULT) return;
|
|
|
3047 int mode = 0;
|
|
|
3048 switch (antialias) {
|
|
|
3049 case SWT.DEFAULT: mode = Cairo.CAIRO_ANTIALIAS_DEFAULT; break;
|
|
|
3050 case SWT.OFF: mode = Cairo.CAIRO_ANTIALIAS_NONE; break;
|
|
|
3051 case SWT.ON: mode = Cairo.CAIRO_ANTIALIAS_GRAY;
|
|
|
3052 break;
|
|
|
3053 default:
|
|
|
3054 SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3055 }
|
|
|
3056 initCairo();
|
|
|
3057 auto cairo = data.cairo;
|
|
|
3058 Cairo.cairo_set_antialias(cairo, mode);
|
|
|
3059 }
|
|
|
3060
|
|
|
3061 /**
|
|
|
3062 * Sets the background color. The background color is used
|
|
|
3063 * for fill operations and as the background color when text
|
|
|
3064 * is drawn.
|
|
|
3065 *
|
|
|
3066 * @param color the new background color for the receiver
|
|
|
3067 *
|
|
|
3068 * @exception IllegalArgumentException <ul>
|
|
|
3069 * <li>ERROR_NULL_ARGUMENT - if the color is null</li>
|
|
|
3070 * <li>ERROR_INVALID_ARGUMENT - if the color has been disposed</li>
|
|
|
3071 * </ul>
|
|
|
3072 * @exception SWTException <ul>
|
|
|
3073 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3074 * </ul>
|
|
|
3075 */
|
|
|
3076 public void setBackground(Color color) {
|
|
|
3077 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3078 if (color is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
3079 if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3080 data.background = color.handle;
|
|
|
3081 data.backgroundPattern = null;
|
|
|
3082 data.state &= ~(BACKGROUND | BACKGROUND_BG);
|
|
|
3083 }
|
|
|
3084
|
|
|
3085 /**
|
|
|
3086 * Sets the background pattern. The default value is <code>null</code>.
|
|
|
3087 * <p>
|
|
|
3088 * This operation requires the operating system's advanced
|
|
|
3089 * graphics subsystem which may not be available on some
|
|
|
3090 * platforms.
|
|
|
3091 * </p>
|
|
|
3092 *
|
|
|
3093 * @param pattern the new background pattern
|
|
|
3094 *
|
|
|
3095 * @exception IllegalArgumentException <ul>
|
|
|
3096 * <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed</li>
|
|
|
3097 * </ul>
|
|
|
3098 * @exception SWTException <ul>
|
|
|
3099 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3100 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li>
|
|
|
3101 * </ul>
|
|
|
3102 *
|
|
|
3103 * @see Pattern
|
|
|
3104 * @see #getAdvanced
|
|
|
3105 * @see #setAdvanced
|
|
|
3106 *
|
|
|
3107 * @since 3.1
|
|
|
3108 */
|
|
|
3109 public void setBackgroundPattern(Pattern pattern) {
|
|
|
3110 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3111 if (pattern !is null && pattern.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3112 if (data.cairo is null && pattern is null) return;
|
|
|
3113 initCairo();
|
|
|
3114 if (data.backgroundPattern is pattern) return;
|
|
|
3115 data.backgroundPattern = pattern;
|
|
|
3116 data.state &= ~BACKGROUND;
|
|
|
3117 }
|
|
|
3118
|
|
|
3119 static void setCairoFont(cairo_t* cairo, Font font) {
|
|
|
3120 setCairoFont(cairo, font.handle);
|
|
|
3121 }
|
|
|
3122
|
|
|
3123 static void setCairoFont(cairo_t* cairo, PangoFontDescription* font) {
|
|
|
3124 auto family = OS.pango_font_description_get_family(font);
|
|
|
3125 int len = /*OS.*/strlen(family);
|
|
|
3126 String buffer = new char[len + 1];
|
|
|
3127 memmove(buffer.ptr, family, len);
|
|
|
3128 //TODO - convert font height from pango to cairo
|
|
|
3129 double height = OS.PANGO_PIXELS(OS.pango_font_description_get_size(font)) * 96 / 72;
|
|
|
3130 int pangoStyle = OS.pango_font_description_get_style(font);
|
|
|
3131 int pangoWeight = OS.pango_font_description_get_weight(font);
|
|
|
3132 int slant = Cairo.CAIRO_FONT_SLANT_NORMAL;
|
|
|
3133 if (pangoStyle is OS.PANGO_STYLE_ITALIC) slant = Cairo.CAIRO_FONT_SLANT_ITALIC;
|
|
|
3134 if (pangoStyle is OS.PANGO_STYLE_OBLIQUE) slant = Cairo.CAIRO_FONT_SLANT_OBLIQUE;
|
|
|
3135 int weight = Cairo.CAIRO_FONT_WEIGHT_NORMAL;
|
|
|
3136 if (pangoWeight is OS.PANGO_WEIGHT_BOLD) weight = Cairo.CAIRO_FONT_WEIGHT_BOLD;
|
|
|
3137 Cairo.cairo_select_font_face(cairo, buffer.ptr, slant, weight);
|
|
|
3138 Cairo.cairo_set_font_size(cairo, height);
|
|
|
3139 }
|
|
|
3140
|
|
|
3141 static void setCairoClip(cairo_t* cairo, GdkRegion* clipRgn) {
|
|
|
3142 Cairo.cairo_reset_clip(cairo);
|
|
|
3143 if (clipRgn is null) return;
|
|
|
3144 if (OS.GTK_VERSION >= OS.buildVERSION(2, 8, 0)) {
|
|
|
3145 OS.gdk_cairo_region(cairo, clipRgn);
|
|
|
3146 } else {
|
|
|
3147 int nRects;
|
|
|
3148 GdkRectangle * rects;
|
|
|
3149 OS.gdk_region_get_rectangles(clipRgn, &rects, &nRects);
|
|
|
3150 //GdkRectangle* rect = new GdkRectangle();
|
|
|
3151 for (int i=0; i<nRects; i++) {
|
|
|
3152 Cairo.cairo_rectangle(cairo, rects[i].x, rects[i].y, rects[i].width, rects[i].height);
|
|
|
3153 }
|
|
|
3154 if (rects !is null) OS.g_free(rects);
|
|
|
3155 }
|
|
|
3156 Cairo.cairo_clip(cairo);
|
|
|
3157 }
|
|
|
3158
|
|
|
3159 static void setCairoPatternColor( cairo_pattern_t* pattern, int offset, Color c, int alpha) {
|
|
|
3160 GdkColor* color = c.handle;
|
|
|
3161 double aa = (alpha & 0xFF) / cast(double)0xFF;
|
|
|
3162 double red = ((color.red & 0xFFFF) / cast(double)0xFFFF);
|
|
|
3163 double green = ((color.green & 0xFFFF) / cast(double)0xFFFF);
|
|
|
3164 double blue = ((color.blue & 0xFFFF) / cast(double)0xFFFF);
|
|
|
3165 Cairo.cairo_pattern_add_color_stop_rgba(pattern, offset, red, green, blue, aa);
|
|
|
3166 }
|
|
|
3167
|
|
|
3168 void setClipping(GdkRegion* clipRgn) {
|
|
|
3169 auto cairo = data.cairo;
|
|
|
3170 if (clipRgn is null) {
|
|
|
3171 if (data.clipRgn !is null) {
|
|
|
3172 OS.gdk_region_destroy(data.clipRgn);
|
|
|
3173 data.clipRgn = null;
|
|
|
3174 }
|
|
|
3175 if (cairo !is null) {
|
|
|
3176 data.clippingTransform = null;
|
|
|
3177 setCairoClip(cairo, clipRgn);
|
|
|
3178 } else {
|
|
|
3179 auto clipping = data.damageRgn !is null ? data.damageRgn : null;
|
|
|
3180 OS.gdk_gc_set_clip_region(handle, clipping);
|
|
|
3181 }
|
|
|
3182 } else {
|
|
|
3183 if (data.clipRgn is null) data.clipRgn = OS.gdk_region_new();
|
|
|
3184 OS.gdk_region_subtract(data.clipRgn, data.clipRgn);
|
|
|
3185 OS.gdk_region_union(data.clipRgn, clipRgn);
|
|
|
3186 if (cairo !is null) {
|
|
|
3187 if (data.clippingTransform is null) data.clippingTransform = new double[6];
|
|
|
3188 Cairo.cairo_get_matrix(cairo,cast(cairo_matrix_t *) data.clippingTransform.ptr);
|
|
|
3189 setCairoClip(cairo, clipRgn);
|
|
|
3190 } else {
|
|
|
3191 auto clipping = clipRgn;
|
|
|
3192 if (data.damageRgn !is null) {
|
|
|
3193 clipping = OS.gdk_region_new();
|
|
|
3194 OS.gdk_region_union(clipping, clipRgn);
|
|
|
3195 OS.gdk_region_intersect(clipping, data.damageRgn);
|
|
|
3196 }
|
|
|
3197 OS.gdk_gc_set_clip_region(handle, clipping);
|
|
|
3198 if (clipping !is clipRgn) OS.gdk_region_destroy(clipping);
|
|
|
3199 }
|
|
|
3200 }
|
|
|
3201 }
|
|
|
3202
|
|
|
3203 /**
|
|
|
3204 * Sets the area of the receiver which can be changed
|
|
|
3205 * by drawing operations to the rectangular area specified
|
|
|
3206 * by the arguments.
|
|
|
3207 *
|
|
|
3208 * @param x the x coordinate of the clipping rectangle
|
|
|
3209 * @param y the y coordinate of the clipping rectangle
|
|
|
3210 * @param width the width of the clipping rectangle
|
|
|
3211 * @param height the height of the clipping rectangle
|
|
|
3212 *
|
|
|
3213 * @exception SWTException <ul>
|
|
|
3214 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3215 * </ul>
|
|
|
3216 */
|
|
|
3217 public void setClipping(int x, int y, int width, int height) {
|
|
|
3218 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3219 if (width < 0) {
|
|
|
3220 x = x + width;
|
|
|
3221 width = -width;
|
|
|
3222 }
|
|
|
3223 if (height < 0) {
|
|
|
3224 y = y + height;
|
|
|
3225 height = -height;
|
|
|
3226 }
|
|
|
3227 GdkRectangle rect;
|
|
|
3228 rect.x = x;
|
|
|
3229 rect.y = y;
|
|
|
3230 rect.width = width;
|
|
|
3231 rect.height = height;
|
|
|
3232 auto clipRgn = OS.gdk_region_new();
|
|
|
3233 OS.gdk_region_union_with_rect(clipRgn, &rect);
|
|
|
3234 setClipping(clipRgn);
|
|
|
3235 OS.gdk_region_destroy(clipRgn);
|
|
|
3236 }
|
|
|
3237
|
|
|
3238 /**
|
|
|
3239 * Sets the area of the receiver which can be changed
|
|
|
3240 * by drawing operations to the path specified
|
|
|
3241 * by the argument.
|
|
|
3242 * <p>
|
|
|
3243 * This operation requires the operating system's advanced
|
|
|
3244 * graphics subsystem which may not be available on some
|
|
|
3245 * platforms.
|
|
|
3246 * </p>
|
|
|
3247 *
|
|
|
3248 * @param path the clipping path.
|
|
|
3249 *
|
|
|
3250 * @exception IllegalArgumentException <ul>
|
|
|
3251 * <li>ERROR_INVALID_ARGUMENT - if the path has been disposed</li>
|
|
|
3252 * </ul>
|
|
|
3253 * @exception SWTException <ul>
|
|
|
3254 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3255 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li>
|
|
|
3256 * </ul>
|
|
|
3257 *
|
|
|
3258 * @see Path
|
|
|
3259 * @see #getAdvanced
|
|
|
3260 * @see #setAdvanced
|
|
|
3261 *
|
|
|
3262 * @since 3.1
|
|
|
3263 */
|
|
|
3264 public void setClipping(Path path) {
|
|
|
3265 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3266 if (path !is null && path.isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3267 setClipping(cast(GdkRegion*)null);
|
|
|
3268 if (path !is null) {
|
|
|
3269 initCairo();
|
|
|
3270 auto cairo = data.cairo;
|
|
|
3271 auto copy = Cairo.cairo_copy_path(path.handle);
|
|
|
3272 if (copy is null) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
3273 Cairo.cairo_append_path(cairo, copy);
|
|
|
3274 Cairo.cairo_path_destroy(copy);
|
|
|
3275 Cairo.cairo_clip(cairo);
|
|
|
3276 }
|
|
|
3277 }
|
|
|
3278
|
|
|
3279 /**
|
|
|
3280 * Sets the area of the receiver which can be changed
|
|
|
3281 * by drawing operations to the rectangular area specified
|
|
|
3282 * by the argument. Specifying <code>null</code> for the
|
|
|
3283 * rectangle reverts the receiver's clipping area to its
|
|
|
3284 * original value.
|
|
|
3285 *
|
|
|
3286 * @param rect the clipping rectangle or <code>null</code>
|
|
|
3287 *
|
|
|
3288 * @exception SWTException <ul>
|
|
|
3289 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3290 * </ul>
|
|
|
3291 */
|
|
|
3292 public void setClipping(Rectangle rect) {
|
|
|
3293 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3294 if (rect is null) {
|
|
|
3295 setClipping(cast(GdkRegion*)null);
|
|
|
3296 } else {
|
|
|
3297 setClipping(rect.x, rect.y, rect.width, rect.height);
|
|
|
3298 }
|
|
|
3299 }
|
|
|
3300 /**
|
|
|
3301 * Sets the area of the receiver which can be changed
|
|
|
3302 * by drawing operations to the region specified
|
|
|
3303 * by the argument. Specifying <code>null</code> for the
|
|
|
3304 * region reverts the receiver's clipping area to its
|
|
|
3305 * original value.
|
|
|
3306 *
|
|
|
3307 * @param region the clipping region or <code>null</code>
|
|
|
3308 *
|
|
|
3309 * @exception IllegalArgumentException <ul>
|
|
|
3310 * <li>ERROR_INVALID_ARGUMENT - if the region has been disposed</li>
|
|
|
3311 * </ul>
|
|
|
3312 * @exception SWTException <ul>
|
|
|
3313 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3314 * </ul>
|
|
|
3315 */
|
|
|
3316 public void setClipping(Region region) {
|
|
|
3317 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3318 if (region !is null && region.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3319 setClipping(region !is null ? region.handle : cast(GdkRegion*)null);
|
|
|
3320 }
|
|
|
3321
|
|
|
3322 /**
|
|
|
3323 * Sets the font which will be used by the receiver
|
|
|
3324 * to draw and measure text to the argument. If the
|
|
|
3325 * argument is null, then a default font appropriate
|
|
|
3326 * for the platform will be used instead.
|
|
|
3327 *
|
|
|
3328 * @param font the new font for the receiver, or null to indicate a default font
|
|
|
3329 *
|
|
|
3330 * @exception IllegalArgumentException <ul>
|
|
|
3331 * <li>ERROR_INVALID_ARGUMENT - if the font has been disposed</li>
|
|
|
3332 * </ul>
|
|
|
3333 * @exception SWTException <ul>
|
|
|
3334 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3335 * </ul>
|
|
|
3336 */
|
|
|
3337 public void setFont(Font font) {
|
|
|
3338 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3339 if (font !is null && font.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3340 data.font = font !is null ? font : data.device.systemFont;
|
|
|
3341 data.state &= ~FONT;
|
|
|
3342 data.stringWidth = data.stringHeight = -1;
|
|
|
3343 }
|
|
|
3344
|
|
|
3345 /**
|
|
|
3346 * Sets the receiver's fill rule to the parameter, which must be one of
|
|
|
3347 * <code>SWT.FILL_EVEN_ODD</code> or <code>SWT.FILL_WINDING</code>.
|
|
|
3348 *
|
|
|
3349 * @param rule the new fill rule
|
|
|
3350 *
|
|
|
3351 * @exception IllegalArgumentException <ul>
|
|
|
3352 * <li>ERROR_INVALID_ARGUMENT - if the rule is not one of <code>SWT.FILL_EVEN_ODD</code>
|
|
|
3353 * or <code>SWT.FILL_WINDING</code></li>
|
|
|
3354 * </ul>
|
|
|
3355 * @exception SWTException <ul>
|
|
|
3356 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3357 * </ul>
|
|
|
3358 *
|
|
|
3359 * @since 3.1
|
|
|
3360 */
|
|
|
3361 public void setFillRule(int rule) {
|
|
|
3362 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3363 int cairo_mode = Cairo.CAIRO_FILL_RULE_EVEN_ODD;
|
|
|
3364 switch (rule) {
|
|
|
3365 case SWT.FILL_WINDING:
|
|
|
3366 cairo_mode = Cairo.CAIRO_FILL_RULE_WINDING; break;
|
|
|
3367 case SWT.FILL_EVEN_ODD:
|
|
|
3368 cairo_mode = Cairo.CAIRO_FILL_RULE_EVEN_ODD; break;
|
|
|
3369 default:
|
|
|
3370 SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3371 }
|
|
|
3372 //TODO - need fill rule in X, GDK has no API
|
|
|
3373 initCairo();
|
|
|
3374 auto cairo = data.cairo;
|
|
|
3375 if (cairo !is null) {
|
|
|
3376 Cairo.cairo_set_fill_rule(cairo, cairo_mode);
|
|
|
3377 }
|
|
|
3378 }
|
|
|
3379
|
|
|
3380 /**
|
|
|
3381 * Sets the foreground color. The foreground color is used
|
|
|
3382 * for drawing operations including when text is drawn.
|
|
|
3383 *
|
|
|
3384 * @param color the new foreground color for the receiver
|
|
|
3385 *
|
|
|
3386 * @exception IllegalArgumentException <ul>
|
|
|
3387 * <li>ERROR_NULL_ARGUMENT - if the color is null</li>
|
|
|
3388 * <li>ERROR_INVALID_ARGUMENT - if the color has been disposed</li>
|
|
|
3389 * </ul>
|
|
|
3390 * @exception SWTException <ul>
|
|
|
3391 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3392 * </ul>
|
|
|
3393 */
|
|
|
3394 public void setForeground(Color color) {
|
|
|
3395 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3396 if (color is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
3397 if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3398 data.foreground = color.handle;
|
|
|
3399 data.foregroundPattern = null;
|
|
|
3400 data.state &= ~FOREGROUND;
|
|
|
3401 }
|
|
|
3402
|
|
|
3403 /**
|
|
|
3404 * Sets the foreground pattern. The default value is <code>null</code>.
|
|
|
3405 * <p>
|
|
|
3406 * This operation requires the operating system's advanced
|
|
|
3407 * graphics subsystem which may not be available on some
|
|
|
3408 * platforms.
|
|
|
3409 * </p>
|
|
|
3410 * @param pattern the new foreground pattern
|
|
|
3411 *
|
|
|
3412 * @exception IllegalArgumentException <ul>
|
|
|
3413 * <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed</li>
|
|
|
3414 * </ul>
|
|
|
3415 * @exception SWTException <ul>
|
|
|
3416 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3417 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li>
|
|
|
3418 * </ul>
|
|
|
3419 *
|
|
|
3420 * @see Pattern
|
|
|
3421 * @see #getAdvanced
|
|
|
3422 * @see #setAdvanced
|
|
|
3423 *
|
|
|
3424 * @since 3.1
|
|
|
3425 */
|
|
|
3426 public void setForegroundPattern(Pattern pattern) {
|
|
|
3427 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3428 if (pattern !is null && pattern.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3429 if (data.cairo is null && pattern is null) return;
|
|
|
3430 initCairo();
|
|
|
3431 if (data.foregroundPattern is pattern) return;
|
|
|
3432 data.foregroundPattern = pattern;
|
|
|
3433 data.state &= ~FOREGROUND;
|
|
|
3434 }
|
|
|
3435
|
|
|
3436 /**
|
|
|
3437 * Sets the receiver's interpolation setting to the parameter, which
|
|
|
3438 * must be one of <code>SWT.DEFAULT</code>, <code>SWT.NONE</code>,
|
|
|
3439 * <code>SWT.LOW</code> or <code>SWT.HIGH</code>.
|
|
|
3440 * <p>
|
|
|
3441 * This operation requires the operating system's advanced
|
|
|
3442 * graphics subsystem which may not be available on some
|
|
|
3443 * platforms.
|
|
|
3444 * </p>
|
|
|
3445 *
|
|
|
3446 * @param interpolation the new interpolation setting
|
|
|
3447 *
|
|
|
3448 * @exception IllegalArgumentException <ul>
|
|
|
3449 * <li>ERROR_INVALID_ARGUMENT - if the rule is not one of <code>SWT.DEFAULT</code>,
|
|
|
3450 * <code>SWT.NONE</code>, <code>SWT.LOW</code> or <code>SWT.HIGH</code>
|
|
|
3451 * </ul>
|
|
|
3452 * @exception SWTException <ul>
|
|
|
3453 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3454 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li>
|
|
|
3455 * </ul>
|
|
|
3456 *
|
|
|
3457 * @see #getAdvanced
|
|
|
3458 * @see #setAdvanced
|
|
|
3459 *
|
|
|
3460 * @since 3.1
|
|
|
3461 */
|
|
|
3462 public void setInterpolation(int interpolation) {
|
|
|
3463 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3464 if (data.cairo is null && interpolation is SWT.DEFAULT) return;
|
|
|
3465 switch (interpolation) {
|
|
|
3466 case SWT.DEFAULT:
|
|
|
3467 case SWT.NONE:
|
|
|
3468 case SWT.LOW:
|
|
|
3469 case SWT.HIGH:
|
|
|
3470 break;
|
|
|
3471 default:
|
|
|
3472 SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3473 }
|
|
|
3474 initCairo();
|
|
|
3475 data.interpolation = interpolation;
|
|
|
3476 }
|
|
|
3477
|
|
|
3478 /**
|
|
|
3479 * Sets the receiver's line attributes.
|
|
|
3480 * <p>
|
|
|
3481 * This operation requires the operating system's advanced
|
|
|
3482 * graphics subsystem which may not be available on some
|
|
|
3483 * platforms.
|
|
|
3484 * </p>
|
|
|
3485 * @param attributes the line attributes
|
|
|
3486 *
|
|
|
3487 * @exception IllegalArgumentException <ul>
|
|
|
3488 * <li>ERROR_NULL_ARGUMENT - if the attributes is null</li>
|
|
|
3489 * <li>ERROR_INVALID_ARGUMENT - if any of the line attributes is not valid</li>
|
|
|
3490 * </ul>
|
|
|
3491 * @exception SWTException <ul>
|
|
|
3492 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3493 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li>
|
|
|
3494 * </ul>
|
|
|
3495 *
|
|
|
3496 * @see LineAttributes
|
|
|
3497 * @see #getAdvanced
|
|
|
3498 * @see #setAdvanced
|
|
|
3499 *
|
|
|
3500 * @since 3.3
|
|
|
3501 */
|
|
|
3502 public void setLineAttributes(LineAttributes attributes) {
|
|
|
3503 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3504 if (attributes is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
3505 int mask = 0;
|
|
|
3506 float lineWidth = attributes.width;
|
|
|
3507 if (lineWidth !is data.lineWidth) {
|
|
|
3508 mask |= LINE_WIDTH | DRAW_OFFSET;
|
|
|
3509 }
|
|
|
3510 int lineStyle = attributes.style;
|
|
|
3511 if (lineStyle !is data.lineStyle) {
|
|
|
3512 mask |= LINE_STYLE;
|
|
|
3513 switch (lineStyle) {
|
|
|
3514 case SWT.LINE_SOLID:
|
|
|
3515 case SWT.LINE_DASH:
|
|
|
3516 case SWT.LINE_DOT:
|
|
|
3517 case SWT.LINE_DASHDOT:
|
|
|
3518 case SWT.LINE_DASHDOTDOT:
|
|
|
3519 break;
|
|
|
3520 case SWT.LINE_CUSTOM:
|
|
|
3521 if (attributes.dash is null) lineStyle = SWT.LINE_SOLID;
|
|
|
3522 break;
|
|
|
3523 default:
|
|
|
3524 SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3525 }
|
|
|
3526 }
|
|
|
3527 int join = attributes.join;
|
|
|
3528 if (join !is data.lineJoin) {
|
|
|
3529 mask |= LINE_JOIN;
|
|
|
3530 switch (join) {
|
|
|
3531 case SWT.CAP_ROUND:
|
|
|
3532 case SWT.CAP_FLAT:
|
|
|
3533 case SWT.CAP_SQUARE:
|
|
|
3534 break;
|
|
|
3535 default:
|
|
|
3536 SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3537 }
|
|
|
3538 }
|
|
|
3539 int cap = attributes.cap;
|
|
|
3540 if (cap !is data.lineCap) {
|
|
|
3541 mask |= LINE_CAP;
|
|
|
3542 switch (cap) {
|
|
|
3543 case SWT.JOIN_MITER:
|
|
|
3544 case SWT.JOIN_ROUND:
|
|
|
3545 case SWT.JOIN_BEVEL:
|
|
|
3546 break;
|
|
|
3547 default:
|
|
|
3548 SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3549 }
|
|
|
3550 }
|
|
|
3551 float[] dashes = attributes.dash;
|
|
|
3552 float[] lineDashes = data.lineDashes;
|
|
|
3553 if (dashes !is null && dashes.length > 0) {
|
|
|
3554 bool changed = lineDashes is null || lineDashes.length !is dashes.length;
|
|
|
3555 for (int i = 0; i < dashes.length; i++) {
|
|
|
3556 float dash = dashes[i];
|
|
|
3557 if (dash <= 0) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3558 if (!changed && lineDashes[i] !is dash) changed = true;
|
|
|
3559 }
|
|
|
3560 if (changed) {
|
|
|
3561 float[] newDashes = new float[dashes.length];
|
|
|
3562 System.arraycopy(dashes, 0, newDashes, 0, dashes.length);
|
|
|
3563 dashes = newDashes;
|
|
|
3564 mask |= LINE_STYLE;
|
|
|
3565 } else {
|
|
|
3566 dashes = lineDashes;
|
|
|
3567 }
|
|
|
3568 } else {
|
|
|
3569 if (lineDashes !is null && lineDashes.length > 0) {
|
|
|
3570 mask |= LINE_STYLE;
|
|
|
3571 } else {
|
|
|
3572 dashes = lineDashes;
|
|
|
3573 }
|
|
|
3574 }
|
|
|
3575 float dashOffset = attributes.dashOffset;
|
|
|
3576 if (dashOffset !is data.lineDashesOffset) {
|
|
|
3577 mask |= LINE_STYLE;
|
|
|
3578 }
|
|
|
3579 float miterLimit = attributes.miterLimit;
|
|
|
3580 if (miterLimit !is data.lineMiterLimit) {
|
|
|
3581 mask |= LINE_MITERLIMIT;
|
|
|
3582 }
|
|
|
3583 initCairo();
|
|
|
3584 if (mask is 0) return;
|
|
|
3585 data.lineWidth = lineWidth;
|
|
|
3586 data.lineStyle = lineStyle;
|
|
|
3587 data.lineCap = cap;
|
|
|
3588 data.lineJoin = join;
|
|
|
3589 data.lineDashes = dashes;
|
|
|
3590 data.lineDashesOffset = dashOffset;
|
|
|
3591 data.lineMiterLimit = miterLimit;
|
|
|
3592 data.state &= ~mask;
|
|
|
3593 }
|
|
|
3594
|
|
|
3595 /**
|
|
|
3596 * Sets the receiver's line cap style to the argument, which must be one
|
|
|
3597 * of the constants <code>SWT.CAP_FLAT</code>, <code>SWT.CAP_ROUND</code>,
|
|
|
3598 * or <code>SWT.CAP_SQUARE</code>.
|
|
|
3599 *
|
|
|
3600 * @param cap the cap style to be used for drawing lines
|
|
|
3601 *
|
|
|
3602 * @exception IllegalArgumentException <ul>
|
|
|
3603 * <li>ERROR_INVALID_ARGUMENT - if the style is not valid</li>
|
|
|
3604 * </ul>
|
|
|
3605 * @exception SWTException <ul>
|
|
|
3606 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3607 * </ul>
|
|
|
3608 *
|
|
|
3609 * @since 3.1
|
|
|
3610 */
|
|
|
3611 public void setLineCap(int cap) {
|
|
|
3612 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3613 if (data.lineCap is cap) return;
|
|
|
3614 switch (cap) {
|
|
|
3615 case SWT.CAP_ROUND:
|
|
|
3616 case SWT.CAP_FLAT:
|
|
|
3617 case SWT.CAP_SQUARE:
|
|
|
3618 break;
|
|
|
3619 default:
|
|
|
3620 SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3621 }
|
|
|
3622 data.lineCap = cap;
|
|
|
3623 data.state &= ~LINE_CAP;
|
|
|
3624 }
|
|
|
3625
|
|
|
3626 /**
|
|
|
3627 * Sets the receiver's line dash style to the argument. The default
|
|
|
3628 * value is <code>null</code>. If the argument is not <code>null</code>,
|
|
|
3629 * the receiver's line style is set to <code>SWT.LINE_CUSTOM</code>, otherwise
|
|
|
3630 * it is set to <code>SWT.LINE_SOLID</code>.
|
|
|
3631 *
|
|
|
3632 * @param dashes the dash style to be used for drawing lines
|
|
|
3633 *
|
|
|
3634 * @exception IllegalArgumentException <ul>
|
|
|
3635 * <li>ERROR_INVALID_ARGUMENT - if any of the values in the array is less than or equal 0</li>
|
|
|
3636 * </ul>
|
|
|
3637 * @exception SWTException <ul>
|
|
|
3638 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3639 * </ul>
|
|
|
3640 *
|
|
|
3641 * @since 3.1
|
|
|
3642 */
|
|
|
3643 public void setLineDash(int[] dashes) {
|
|
|
3644 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3645 float[] lineDashes = data.lineDashes;
|
|
|
3646 if (dashes !is null && dashes.length > 0) {
|
|
|
3647 bool changed = data.lineStyle !is SWT.LINE_CUSTOM || lineDashes is null || lineDashes.length !is dashes.length;
|
|
|
3648 for (int i = 0; i < dashes.length; i++) {
|
|
|
3649 int dash = dashes[i];
|
|
|
3650 if (dash <= 0) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3651 if (!changed && lineDashes[i] !is dash) changed = true;
|
|
|
3652 }
|
|
|
3653 if (!changed) return;
|
|
|
3654 data.lineDashes = new float[dashes.length];
|
|
|
3655 for (int i = 0; i < dashes.length; i++) {
|
|
|
3656 data.lineDashes[i] = dashes[i];
|
|
|
3657 }
|
|
|
3658 data.lineStyle = SWT.LINE_CUSTOM;
|
|
|
3659 } else {
|
|
|
3660 if (data.lineStyle is SWT.LINE_SOLID && (lineDashes is null || lineDashes.length is 0)) return;
|
|
|
3661 data.lineDashes = null;
|
|
|
3662 data.lineStyle = SWT.LINE_SOLID;
|
|
|
3663 }
|
|
|
3664 data.state &= ~LINE_STYLE;
|
|
|
3665 }
|
|
|
3666
|
|
|
3667 /**
|
|
|
3668 * Sets the receiver's line join style to the argument, which must be one
|
|
|
3669 * of the constants <code>SWT.JOIN_MITER</code>, <code>SWT.JOIN_ROUND</code>,
|
|
|
3670 * or <code>SWT.JOIN_BEVEL</code>.
|
|
|
3671 *
|
|
|
3672 * @param join the join style to be used for drawing lines
|
|
|
3673 *
|
|
|
3674 * @exception IllegalArgumentException <ul>
|
|
|
3675 * <li>ERROR_INVALID_ARGUMENT - if the style is not valid</li>
|
|
|
3676 * </ul>
|
|
|
3677 * @exception SWTException <ul>
|
|
|
3678 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3679 * </ul>
|
|
|
3680 *
|
|
|
3681 * @since 3.1
|
|
|
3682 */
|
|
|
3683 public void setLineJoin(int join) {
|
|
|
3684 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3685 if (data.lineJoin is join) return;
|
|
|
3686 switch (join) {
|
|
|
3687 case SWT.JOIN_MITER:
|
|
|
3688 case SWT.JOIN_ROUND:
|
|
|
3689 case SWT.JOIN_BEVEL:
|
|
|
3690 break;
|
|
|
3691 default:
|
|
|
3692 SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3693 }
|
|
|
3694 data.lineJoin = join;
|
|
|
3695 data.state &= ~LINE_JOIN;
|
|
|
3696 }
|
|
|
3697
|
|
|
3698 /**
|
|
|
3699 * Sets the receiver's line style to the argument, which must be one
|
|
|
3700 * of the constants <code>SWT.LINE_SOLID</code>, <code>SWT.LINE_DASH</code>,
|
|
|
3701 * <code>SWT.LINE_DOT</code>, <code>SWT.LINE_DASHDOT</code> or
|
|
|
3702 * <code>SWT.LINE_DASHDOTDOT</code>.
|
|
|
3703 *
|
|
|
3704 * @param lineStyle the style to be used for drawing lines
|
|
|
3705 *
|
|
|
3706 * @exception IllegalArgumentException <ul>
|
|
|
3707 * <li>ERROR_INVALID_ARGUMENT - if the style is not valid</li>
|
|
|
3708 * </ul>
|
|
|
3709 * @exception SWTException <ul>
|
|
|
3710 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3711 * </ul>
|
|
|
3712 */
|
|
|
3713 public void setLineStyle(int lineStyle) {
|
|
|
3714 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3715 if (data.lineStyle is lineStyle) return;
|
|
|
3716 switch (lineStyle) {
|
|
|
3717 case SWT.LINE_SOLID:
|
|
|
3718 case SWT.LINE_DASH:
|
|
|
3719 case SWT.LINE_DOT:
|
|
|
3720 case SWT.LINE_DASHDOT:
|
|
|
3721 case SWT.LINE_DASHDOTDOT:
|
|
|
3722 break;
|
|
|
3723 case SWT.LINE_CUSTOM:
|
|
|
3724 if (data.lineDashes is null) lineStyle = SWT.LINE_SOLID;
|
|
|
3725 break;
|
|
|
3726 default:
|
|
|
3727 SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3728 }
|
|
|
3729 data.lineStyle = lineStyle;
|
|
|
3730 data.state &= ~LINE_STYLE;
|
|
|
3731 }
|
|
|
3732
|
|
|
3733 /**
|
|
|
3734 * Sets the width that will be used when drawing lines
|
|
|
3735 * for all of the figure drawing operations (that is,
|
|
|
3736 * <code>drawLine</code>, <code>drawRectangle</code>,
|
|
|
3737 * <code>drawPolyline</code>, and so forth.
|
|
|
3738 * <p>
|
|
|
3739 * Note that line width of zero is used as a hint to
|
|
|
3740 * indicate that the fastest possible line drawing
|
|
|
3741 * algorithms should be used. This means that the
|
|
|
3742 * output may be different from line width one.
|
|
|
3743 * </p>
|
|
|
3744 *
|
|
|
3745 * @param lineWidth the width of a line
|
|
|
3746 *
|
|
|
3747 * @exception SWTException <ul>
|
|
|
3748 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3749 * </ul>
|
|
|
3750 */
|
|
|
3751 public void setLineWidth(int lineWidth) {
|
|
|
3752 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3753 if (data.lineWidth is lineWidth) return;
|
|
|
3754 data.lineWidth = lineWidth;
|
|
|
3755 data.state &= ~(LINE_WIDTH | DRAW_OFFSET);
|
|
|
3756 }
|
|
|
3757
|
|
|
3758 void setString(String str, int flags) {
|
|
|
3759 if (data.layout is null) createLayout();
|
|
|
3760 if (str is data.str && (flags & ~SWT.DRAW_TRANSPARENT) is (data.drawFlags & ~SWT.DRAW_TRANSPARENT)) {
|
|
|
3761 return;
|
|
|
3762 }
|
|
|
3763 String buffer;
|
|
|
3764 int mnemonic, len = str.length ;
|
|
|
3765 auto layout = data.layout;
|
|
|
3766 char[] text = str.dup;
|
|
|
3767 if ((flags & SWT.DRAW_MNEMONIC) !is 0 && (mnemonic = fixMnemonic(text)) !is -1) {
|
|
|
3768 char[] text1 = new char[mnemonic - 1];
|
|
|
3769 System.arraycopy(text, 0, text1, 0, text1.length);
|
|
|
3770 char[] buffer1 = text1.dup;
|
|
|
3771 char[] text2 = new char[text.length - mnemonic];
|
|
|
3772 System.arraycopy(text, mnemonic - 1, text2, 0, text2.length);
|
|
|
3773 char[] buffer2 = text2.dup;
|
|
|
3774 buffer = new char[buffer1.length + buffer2.length];
|
|
|
3775 System.arraycopy(buffer1, 0, buffer, 0, buffer1.length);
|
|
|
3776 System.arraycopy(buffer2, 0, buffer, buffer1.length, buffer2.length);
|
|
|
3777 auto attr_list = OS.pango_attr_list_new();
|
|
|
3778 auto attr = OS.pango_attr_underline_new(OS.PANGO_UNDERLINE_LOW);
|
|
|
3779 attr.start_index = buffer1.length;
|
|
|
3780 attr.end_index = buffer1.length + 1;
|
|
|
3781 OS.pango_attr_list_insert(attr_list, attr);
|
|
|
3782 OS.pango_layout_set_attributes(layout, attr_list);
|
|
|
3783 OS.pango_attr_list_unref(attr_list);
|
|
|
3784 } else {
|
|
|
3785 buffer = text.dup;
|
|
|
3786 OS.pango_layout_set_attributes(layout, null);
|
|
|
3787 }
|
|
|
3788 OS.pango_layout_set_text(layout, buffer.ptr, buffer.length);
|
|
|
3789 OS.pango_layout_set_single_paragraph_mode(layout, (flags & SWT.DRAW_DELIMITER) is 0);
|
|
|
3790 OS.pango_layout_set_tabs(layout, (flags & SWT.DRAW_TAB) !is 0 ? null : data.device.emptyTab);
|
|
|
3791 data.str = str;
|
|
|
3792 data.stringWidth = data.stringHeight = -1;
|
|
|
3793 data.drawFlags = flags;
|
|
|
3794 }
|
|
|
3795
|
|
|
3796 /**
|
|
|
3797 * Sets the receiver's text anti-aliasing value to the parameter,
|
|
|
3798 * which must be one of <code>SWT.DEFAULT</code>, <code>SWT.OFF</code>
|
|
|
3799 * or <code>SWT.ON</code>. Note that this controls anti-aliasing only
|
|
|
3800 * for all <em>text drawing</em> operations.
|
|
|
3801 * <p>
|
|
|
3802 * This operation requires the operating system's advanced
|
|
|
3803 * graphics subsystem which may not be available on some
|
|
|
3804 * platforms.
|
|
|
3805 * </p>
|
|
|
3806 *
|
|
|
3807 * @param antialias the anti-aliasing setting
|
|
|
3808 *
|
|
|
3809 * @exception IllegalArgumentException <ul>
|
|
|
3810 * <li>ERROR_INVALID_ARGUMENT - if the parameter is not one of <code>SWT.DEFAULT</code>,
|
|
|
3811 * <code>SWT.OFF</code> or <code>SWT.ON</code></li>
|
|
|
3812 * </ul>
|
|
|
3813 * @exception SWTException <ul>
|
|
|
3814 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3815 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li>
|
|
|
3816 * </ul>
|
|
|
3817 *
|
|
|
3818 * @see #getAdvanced
|
|
|
3819 * @see #setAdvanced
|
|
|
3820 * @see #setAntialias
|
|
|
3821 *
|
|
|
3822 * @since 3.1
|
|
|
3823 */
|
|
|
3824 public void setTextAntialias(int antialias) {
|
|
|
3825 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3826 if (data.cairo is null && antialias is SWT.DEFAULT) return;
|
|
|
3827 int mode = 0;
|
|
|
3828 switch (antialias) {
|
|
|
3829 case SWT.DEFAULT: mode = Cairo.CAIRO_ANTIALIAS_DEFAULT; break;
|
|
|
3830 case SWT.OFF: mode = Cairo.CAIRO_ANTIALIAS_NONE; break;
|
|
|
3831 case SWT.ON: mode = Cairo.CAIRO_ANTIALIAS_GRAY;
|
|
|
3832 break;
|
|
|
3833 default:
|
|
|
3834 SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3835 }
|
|
|
3836 initCairo();
|
|
|
3837 auto options = Cairo.cairo_font_options_create();
|
|
|
3838 Cairo.cairo_font_options_set_antialias(options, mode);
|
|
|
3839 if (OS.GTK_VERSION < OS.buildVERSION(2, 8, 0)) {
|
|
|
3840 Cairo.cairo_set_font_options(data.cairo, options);
|
|
|
3841 } else {
|
|
|
3842 if (data.context is null) createLayout();
|
|
|
3843 OS.pango_cairo_context_set_font_options(data.context, options);
|
|
|
3844 }
|
|
|
3845 Cairo.cairo_font_options_destroy(options);
|
|
|
3846 }
|
|
|
3847
|
|
|
3848 /**
|
|
|
3849 * Sets the transform that is currently being used by the receiver. If
|
|
|
3850 * the argument is <code>null</code>, the current transform is set to
|
|
|
3851 * the identity transform.
|
|
|
3852 * <p>
|
|
|
3853 * This operation requires the operating system's advanced
|
|
|
3854 * graphics subsystem which may not be available on some
|
|
|
3855 * platforms.
|
|
|
3856 * </p>
|
|
|
3857 *
|
|
|
3858 * @param transform the transform to set
|
|
|
3859 *
|
|
|
3860 * @exception IllegalArgumentException <ul>
|
|
|
3861 * <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed</li>
|
|
|
3862 * </ul>
|
|
|
3863 * @exception SWTException <ul>
|
|
|
3864 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3865 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li>
|
|
|
3866 * </ul>
|
|
|
3867 *
|
|
|
3868 * @see Transform
|
|
|
3869 * @see #getAdvanced
|
|
|
3870 * @see #setAdvanced
|
|
|
3871 *
|
|
|
3872 * @since 3.1
|
|
|
3873 */
|
|
|
3874 public void setTransform(Transform transform) {
|
|
|
3875 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3876 if (transform !is null && transform.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
|
|
|
3877 if (data.cairo is null && transform is null) return;
|
|
|
3878 initCairo();
|
|
|
3879 auto cairo = data.cairo;
|
|
|
3880 double[] identity = identity();
|
|
|
3881 if (transform !is null) {
|
|
|
3882 Cairo.cairo_matrix_multiply(cast(cairo_matrix_t*)identity.ptr, cast(cairo_matrix_t*)transform.handle.ptr, cast(cairo_matrix_t*)identity.ptr);
|
|
|
3883 }
|
|
|
3884 Cairo.cairo_set_matrix(cairo, cast(cairo_matrix_t*)identity.ptr);
|
|
|
3885 data.state &= ~DRAW_OFFSET;
|
|
|
3886 }
|
|
|
3887
|
|
|
3888 /**
|
|
|
3889 * If the argument is <code>true</code>, puts the receiver
|
|
|
3890 * in a drawing mode where the resulting color in the destination
|
|
|
3891 * is the <em>exclusive or</em> of the color values in the source
|
|
|
3892 * and the destination, and if the argument is <code>false</code>,
|
|
|
3893 * puts the receiver in a drawing mode where the destination color
|
|
|
3894 * is replaced with the source color value.
|
|
|
3895 * <p>
|
|
|
3896 * Note that this mode in fundamentally unsupportable on certain
|
|
|
3897 * platforms, notably Carbon (Mac OS X). Clients that want their
|
|
|
3898 * code to run on all platforms need to avoid this method.
|
|
|
3899 * </p>
|
|
|
3900 *
|
|
|
3901 * @param xor if <code>true</code>, then <em>xor</em> mode is used, otherwise <em>source copy</em> mode is used
|
|
|
3902 *
|
|
|
3903 * @exception SWTException <ul>
|
|
|
3904 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3905 * </ul>
|
|
|
3906 *
|
|
|
3907 * @deprecated this functionality is not supported on some platforms
|
|
|
3908 */
|
|
|
3909 public void setXORMode(bool xor) {
|
|
|
3910 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3911 OS.gdk_gc_set_function(handle, xor ? OS.GDK_XOR : OS.GDK_COPY);
|
|
|
3912 data.xorMode = xor;
|
|
|
3913 }
|
|
|
3914
|
|
|
3915 /**
|
|
|
3916 * Returns the extent of the given str. No tab
|
|
|
3917 * expansion or carriage return processing will be performed.
|
|
|
3918 * <p>
|
|
|
3919 * The <em>extent</em> of a str is the width and height of
|
|
|
3920 * the rectangular area it would cover if drawn in a particular
|
|
|
3921 * font (in this case, the current font in the receiver).
|
|
|
3922 * </p>
|
|
|
3923 *
|
|
|
3924 * @param str the str to measure
|
|
|
3925 * @return a point containing the extent of the str
|
|
|
3926 *
|
|
|
3927 * @exception SWTException <ul>
|
|
|
3928 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3929 * </ul>
|
|
|
3930 */
|
|
|
3931 public Point stringExtent(String str) {
|
|
|
3932 return textExtent(str, 0);
|
|
|
3933 }
|
|
|
3934
|
|
|
3935 /**
|
|
|
3936 * Returns the extent of the given str. Tab expansion and
|
|
|
3937 * carriage return processing are performed.
|
|
|
3938 * <p>
|
|
|
3939 * The <em>extent</em> of a str is the width and height of
|
|
|
3940 * the rectangular area it would cover if drawn in a particular
|
|
|
3941 * font (in this case, the current font in the receiver).
|
|
|
3942 * </p>
|
|
|
3943 *
|
|
|
3944 * @param str the str to measure
|
|
|
3945 * @return a point containing the extent of the str
|
|
|
3946 *
|
|
|
3947 * @exception SWTException <ul>
|
|
|
3948 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3949 * </ul>
|
|
|
3950 */
|
|
|
3951 public Point textExtent(String str) {
|
|
|
3952 return textExtent(str, SWT.DRAW_DELIMITER | SWT.DRAW_TAB);
|
|
|
3953 }
|
|
|
3954
|
|
|
3955 /**
|
|
|
3956 * Returns the extent of the given str. Tab expansion, line
|
|
|
3957 * delimiter and mnemonic processing are performed according to
|
|
|
3958 * the specified flags, which can be a combination of:
|
|
|
3959 * <dl>
|
|
|
3960 * <dt><b>DRAW_DELIMITER</b></dt>
|
|
|
3961 * <dd>draw multiple lines</dd>
|
|
|
3962 * <dt><b>DRAW_TAB</b></dt>
|
|
|
3963 * <dd>expand tabs</dd>
|
|
|
3964 * <dt><b>DRAW_MNEMONIC</b></dt>
|
|
|
3965 * <dd>underline the mnemonic character</dd>
|
|
|
3966 * <dt><b>DRAW_TRANSPARENT</b></dt>
|
|
|
3967 * <dd>transparent background</dd>
|
|
|
3968 * </dl>
|
|
|
3969 * <p>
|
|
|
3970 * The <em>extent</em> of a str is the width and height of
|
|
|
3971 * the rectangular area it would cover if drawn in a particular
|
|
|
3972 * font (in this case, the current font in the receiver).
|
|
|
3973 * </p>
|
|
|
3974 *
|
|
|
3975 * @param str the str to measure
|
|
|
3976 * @param flags the flags specifying how to process the text
|
|
|
3977 * @return a point containing the extent of the str
|
|
|
3978 *
|
|
|
3979 * @exception SWTException <ul>
|
|
|
3980 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
|
|
|
3981 * </ul>
|
|
|
3982 */
|
|
|
3983 public Point textExtent(String str, int flags) {
|
|
|
3984 if (handle is null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
|
|
|
3985 //DWT_CHANGE: allow null for string
|
|
|
3986 //if (str is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
|
|
|
3987 auto cairo = data.cairo;
|
|
|
3988 if (cairo !is null) {
|
|
|
3989 if (OS.GTK_VERSION < OS.buildVERSION(2, 8, 0)) {
|
|
|
3990 //TODO - honor flags
|
|
|
3991 checkGC(FONT);
|
|
|
3992 char* buffer = toStringz(str);
|
|
|
3993 cairo_font_extents_t* font_extents = new cairo_font_extents_t();
|
|
|
3994 Cairo.cairo_font_extents(cairo, font_extents);
|
|
|
3995 cairo_text_extents_t* extents = new cairo_text_extents_t();
|
|
|
3996 Cairo.cairo_text_extents(cairo, buffer, extents);
|
|
|
3997 return new Point(cast(int)extents.width, cast(int)font_extents.height);
|
|
|
3998 }
|
|
|
3999 }
|
|
|
4000 setString(str, flags);
|
|
|
4001 checkGC(FONT);
|
|
|
4002 if (data.stringWidth !is -1) return new Point(data.stringWidth, data.stringHeight);
|
|
|
4003 int width, height;
|
|
|
4004 OS.pango_layout_get_size(data.layout, &width, &height);
|
|
|
4005 return new Point(data.stringWidth = OS.PANGO_PIXELS(width), data.stringHeight = OS.PANGO_PIXELS(height));
|
|
|
4006 }
|
|
|
4007
|
|
|
4008 /**
|
|
|
4009 * Returns a str containing a concise, human-readable
|
|
|
4010 * description of the receiver.
|
|
|
4011 *
|
|
|
4012 * @return a str representation of the receiver
|
|
|
4013 */
|
|
|
4014 public override String toString () {
|
|
|
4015 if (isDisposed()) return "GC {*DISPOSED*}";
|
|
|
4016 return Format( "GC {{{}}", handle );
|
|
|
4017 }
|
|
|
4018
|
|
|
4019 }
|
|
|
4020
|
|
|
4021
|
