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annotate org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/graphics/Path.d @ 0:6dd524f61e62

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add dwt win and basic java stuff
author Frank Benoit <benoit@tionex.de>
date Mon, 02 Mar 2009 14:44:16 +0100
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children 6bf2837c50fe
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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.Path;
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14
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15 import org.eclipse.swt.internal.gdip.Gdip;
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16
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17 import org.eclipse.swt.SWT;
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18 import org.eclipse.swt.SWTError;
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19 import org.eclipse.swt.SWTException;
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20 import org.eclipse.swt.internal.gdip.Gdip;
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21 import org.eclipse.swt.internal.win32.OS;
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22
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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.GC;
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27 import org.eclipse.swt.graphics.GCData;
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28 import org.eclipse.swt.graphics.PathData;
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29
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30 import java.lang.System;
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31 import tango.text.convert.Format;
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32 import java.lang.all;
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33
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34 /**
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35 * Instances of this class represent paths through the two-dimensional
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36 * coordinate system. Paths do not have to be continuous, and can be
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37 * described using lines, rectangles, arcs, cubic or quadratic bezier curves,
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38 * glyphs, or other paths.
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39 * <p>
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40 * Application code must explicitly invoke the <code>Path.dispose()</code>
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41 * method to release the operating system resources managed by each instance
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42 * when those instances are no longer required.
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43 * </p>
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44 * <p>
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45 * This class requires the operating system's advanced graphics subsystem
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46 * which may not be available on some platforms.
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47 * </p>
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48 *
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49 * @see <a href="http://www.eclipse.org/swt/snippets/#path">Path, Pattern snippets</a>
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50 * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: GraphicsExample</a>
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51 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
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52 *
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53 * @since 3.1
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54 */
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55 public class Path : Resource {
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56
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57 alias Resource.init_ init_;
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58
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59 /**
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60 * the OS resource for the Path
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61 * (Warning: This field is platform dependent)
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62 * <p>
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63 * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT
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64 * public API. It is marked public only so that it can be shared
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65 * within the packages provided by SWT. It is not available on all
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66 * platforms and should never be accessed from application code.
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67 * </p>
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68 */
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69 public Gdip.Path handle;
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70
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71 Gdip.PointF currentPoint, startPoint;
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72
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73 /**
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74 * Constructs a new empty Path.
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75 * <p>
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76 * This operation requires the operating system's advanced
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77 * graphics subsystem which may not be available on some
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78 * platforms.
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79 * </p>
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80 *
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81 * @param device the device on which to allocate the path
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82 *
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83 * @exception IllegalArgumentException <ul>
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84 * <li>ERROR_NULL_ARGUMENT - if the device is null and there is no current device</li>
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85 * </ul>
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86 * @exception SWTException <ul>
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87 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li>
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88 * </ul>
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89 * @exception SWTError <ul>
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90 * <li>ERROR_NO_HANDLES if a handle for the path could not be obtained</li>
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91 * </ul>
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92 *
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93 * @see #dispose()
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94 */
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95 public this (Device device) {
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96 super(device);
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97 this.device.checkGDIP();
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98 handle = Gdip.GraphicsPath_new(Gdip.FillModeAlternate);
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99 if (handle is null) SWT.error(SWT.ERROR_NO_HANDLES);
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100 init_();
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101 }
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102
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103 /**
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104 * Constructs a new Path that is a copy of <code>path</code>. If
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105 * <code>flatness</code> is less than or equal to zero, an unflatten
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106 * copy of the path is created. Otherwise, it specifies the maximum
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107 * error between the path and its flatten copy. Smaller numbers give
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108 * better approximation.
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109 * <p>
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110 * This operation requires the operating system's advanced
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111 * graphics subsystem which may not be available on some
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112 * platforms.
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113 * </p>
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114 *
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115 * @param device the device on which to allocate the path
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116 * @param path the path to make a copy
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117 * @param flatness the flatness value
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118 *
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119 * @exception IllegalArgumentException <ul>
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120 * <li>ERROR_NULL_ARGUMENT - if the device is null and there is no current device</li>
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121 * <li>ERROR_NULL_ARGUMENT - if the path is null</li>
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122 * <li>ERROR_INVALID_ARGUMENT - if the path has been disposed</li>
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123 * </ul>
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124 * @exception SWTException <ul>
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125 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li>
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126 * </ul>
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127 * @exception SWTError <ul>
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128 * <li>ERROR_NO_HANDLES if a handle for the path could not be obtained</li>
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129 * </ul>
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130 *
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131 * @see #dispose()
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132 * @since 3.4
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133 */
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134 public this (Device device, Path path, float flatness) {
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135 super(device);
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136 if (path is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
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137 if (path.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
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138 flatness = Math.max(0, flatness);
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139 handle = Gdip.GraphicsPath_Clone(path.handle);
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140 if (flatness !is 0) Gdip.GraphicsPath_Flatten(handle, null, flatness);
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141 if (handle is null) SWT.error(SWT.ERROR_NO_HANDLES);
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142 init_();
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143 }
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144
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145 /**
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146 * Constructs a new Path with the specifed PathData.
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147 * <p>
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148 * This operation requires the operating system's advanced
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149 * graphics subsystem which may not be available on some
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150 * platforms.
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151 * </p>
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152 *
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153 * @param device the device on which to allocate the path
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154 * @param data the data for the path
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155 *
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156 * @exception IllegalArgumentException <ul>
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157 * <li>ERROR_NULL_ARGUMENT - if the device is null and there is no current device</li>
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158 * <li>ERROR_NULL_ARGUMENT - if the data is null</li>
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159 * </ul>
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160 * @exception SWTException <ul>
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161 * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li>
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162 * </ul>
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163 * @exception SWTError <ul>
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164 * <li>ERROR_NO_HANDLES if a handle for the path could not be obtained</li>
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165 * </ul>
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166 *
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167 * @see #dispose()
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168 * @since 3.4
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169 */
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170 public this (Device device, PathData data) {
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171 this(device);
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172 if (data is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
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173 init_(data);
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174 }
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175
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176 /**
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177 * Adds to the receiver a circular or elliptical arc that lies within
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178 * the specified rectangular area.
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179 * <p>
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180 * The resulting arc begins at <code>startAngle</code> and extends
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181 * for <code>arcAngle</code> degrees.
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182 * Angles are interpreted such that 0 degrees is at the 3 o'clock
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183 * position. A positive value indicates a counter-clockwise rotation
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184 * while a negative value indicates a clockwise rotation.
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185 * </p><p>
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186 * The center of the arc is the center of the rectangle whose origin
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187 * is (<code>x</code>, <code>y</code>) and whose size is specified by the
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188 * <code>width</code> and <code>height</code> arguments.
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189 * </p><p>
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190 * The resulting arc covers an area <code>width + 1</code> pixels wide
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191 * by <code>height + 1</code> pixels tall.
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192 * </p>
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193 *
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194 * @param x the x coordinate of the upper-left corner of the arc
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195 * @param y the y coordinate of the upper-left corner of the arc
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196 * @param width the width of the arc
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197 * @param height the height of the arc
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198 * @param startAngle the beginning angle
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199 * @param arcAngle the angular extent of the arc, relative to the start angle
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200 *
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201 * @exception SWTException <ul>
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202 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
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203 * </ul>
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204 */
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205 public void addArc(float x, float y, float width, float height, float startAngle, float arcAngle) {
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206 if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
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207 if (width < 0) {
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208 x = x + width;
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209 width = -width;
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210 }
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211 if (height < 0) {
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212 y = y + height;
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213 height = -height;
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214 }
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215 if (width is 0 || height is 0 || arcAngle is 0) return;
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216 if (width is height) {
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217 Gdip.GraphicsPath_AddArcF(handle, x, y, width, height, -startAngle, -arcAngle);
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218 } else {
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219 auto path = Gdip.GraphicsPath_new(Gdip.FillModeAlternate);
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220 if (path is null) SWT.error(SWT.ERROR_NO_HANDLES);
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221 auto matrix = Gdip.Matrix_new(width, 0, 0, height, x, y);
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222 if (matrix is null) SWT.error(SWT.ERROR_NO_HANDLES);
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223 Gdip.GraphicsPath_AddArc(path, 0, 0, 1, 1, -startAngle, -arcAngle);
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224 Gdip.GraphicsPath_Transform(path, matrix);
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225 Gdip.GraphicsPath_AddPath(handle, path, true);
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226 Gdip.Matrix_delete(matrix);
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227 Gdip.GraphicsPath_delete(path);
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228 }
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229 Gdip.GraphicsPath_GetLastPoint(handle, currentPoint);
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230 }
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231
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232 /**
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233 * Adds to the receiver the path described by the parameter.
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234 *
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235 * @param path the path to add to the receiver
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236 *
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237 * @exception IllegalArgumentException <ul>
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238 * <li>ERROR_NULL_ARGUMENT - if the parameter is null</li>
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239 * <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed</li>
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240 * </ul>
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241 * @exception SWTException <ul>
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242 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
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243 * </ul>
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244 */
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245 public void addPath(Path path) {
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246 if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
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247 if (path is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
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248 if (path.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
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249 //TODO - expose connect?
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250 Gdip.GraphicsPath_AddPath(handle, path.handle, false);
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251 currentPoint.X = path.currentPoint.X;
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252 currentPoint.Y = path.currentPoint.Y;
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253 }
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254
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255 /**
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256 * Adds to the receiver the rectangle specified by x, y, width and height.
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257 *
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258 * @param x the x coordinate of the rectangle to add
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259 * @param y the y coordinate of the rectangle to add
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260 * @param width the width of the rectangle to add
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261 * @param height the height of the rectangle to add
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262 *
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263 * @exception SWTException <ul>
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264 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
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265 * </ul>
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266 */
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267 public void addRectangle(float x, float y, float width, float height) {
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268 if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
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269 Gdip.RectF rect;
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270 rect.X = x;
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271 rect.Y = y;
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272 rect.Width = width;
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273 rect.Height = height;
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274 Gdip.GraphicsPath_AddRectangle(handle, rect);
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275 currentPoint.X = x;
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276 currentPoint.Y = y;
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277 }
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278
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279 /**
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280 * Adds to the receiver the pattern of glyphs generated by drawing
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281 * the given string using the given font starting at the point (x, y).
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282 *
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283 * @param string the text to use
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284 * @param x the x coordinate of the starting point
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285 * @param y the y coordinate of the starting point
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286 * @param font the font to use
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287 *
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288 * @exception IllegalArgumentException <ul>
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289 * <li>ERROR_NULL_ARGUMENT - if the font is null</li>
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290 * <li>ERROR_INVALID_ARGUMENT - if the font has been disposed</li>
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291 * </ul>
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292 * @exception SWTException <ul>
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293 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
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294 * </ul>
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295 */
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296 public void addString(String string, float x, float y, Font font) {
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297 if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
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298 if (font is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
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299 if (font.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
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300 wchar[] wstr = StrToWCHARs( string );
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301 wchar* buffer = wstr.ptr;
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302 int length = wstr.length;
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303 auto hDC = device.internal_new_GC(null);
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304 auto gdipFont = GC.createGdipFont(hDC, font.handle);
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305 Gdip.PointF point;
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306 point.X = x - (Gdip.Font_GetSize(gdipFont) / 6);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
307 point.Y = y;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
308 auto family = Gdip.FontFamily_new();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
309 Gdip.Font_GetFamily(gdipFont, family);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
310 int style = Gdip.Font_GetStyle(gdipFont);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
311 float size = Gdip.Font_GetSize(gdipFont);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
312 Gdip.GraphicsPath_AddString(handle, buffer, length, family, style, size, point, null);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
313 Gdip.GraphicsPath_GetLastPoint(handle, currentPoint);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
314 Gdip.FontFamily_delete(family);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
315 Gdip.Font_delete(gdipFont);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
316 device.internal_dispose_GC(hDC, null);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
317 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
318
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
319 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
320 * Closes the current sub path by adding to the receiver a line
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
321 * from the current point of the path back to the starting point
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
322 * of the sub path.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
323 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
324 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
325 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
326 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
327 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
328 public void close() {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
329 if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
330 Gdip.GraphicsPath_CloseFigure(handle);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
331 /*
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
332 * Feature in GDI+. CloseFigure() does affect the last
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
333 * point, so GetLastPoint() does not return the starting
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
334 * point of the subpath after calling CloseFigure(). The
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
335 * fix is to remember the subpath starting point and use
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
336 * it instead.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
337 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
338 currentPoint.X = startPoint.X;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
339 currentPoint.Y = startPoint.Y;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
340 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
341
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
342 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
343 * Returns <code>true</code> if the specified point is contained by
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
344 * the receiver and false otherwise.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
345 * <p>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
346 * If outline is <code>true</code>, the point (x, y) checked for containment in
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
347 * the receiver's outline. If outline is <code>false</code>, the point is
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
348 * checked to see if it is contained within the bounds of the (closed) area
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
349 * covered by the receiver.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
350 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
351 * @param x the x coordinate of the point to test for containment
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
352 * @param y the y coordinate of the point to test for containment
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
353 * @param gc the GC to use when testing for containment
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
354 * @param outline controls whether to check the outline or contained area of the path
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
355 * @return <code>true</code> if the path contains the point and <code>false</code> otherwise
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
356 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
357 * @exception IllegalArgumentException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
358 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
359 * <li>ERROR_INVALID_ARGUMENT - if the gc has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
360 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
361 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
362 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
363 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
364 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
365 public bool contains(float x, float y, GC gc, bool outline) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
366 if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
367 if (gc is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
368 if (gc.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
369 //TODO - should use GC transformation
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
370 gc.initGdip();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
371 gc.checkGC(GC.LINE_CAP | GC.LINE_JOIN | GC.LINE_STYLE | GC.LINE_WIDTH);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
372 int mode = OS.GetPolyFillMode(gc.handle) is OS.WINDING ? Gdip.FillModeWinding : Gdip.FillModeAlternate;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
373 Gdip.GraphicsPath_SetFillMode(handle, mode);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
374 if (outline) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
375 return Gdip.GraphicsPath_IsOutlineVisible(handle, x, y, gc.data.gdipPen, gc.data.gdipGraphics);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
376 } else {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
377 return Gdip.GraphicsPath_IsVisible(handle, x, y, gc.data.gdipGraphics);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
378 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
379 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
380
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
381 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
382 * Adds to the receiver a cubic bezier curve based on the parameters.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
383 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
384 * @param cx1 the x coordinate of the first control point of the spline
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
385 * @param cy1 the y coordinate of the first control of the spline
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
386 * @param cx2 the x coordinate of the second control of the spline
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
387 * @param cy2 the y coordinate of the second control of the spline
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
388 * @param x the x coordinate of the end point of the spline
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
389 * @param y the y coordinate of the end point of the spline
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
390 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
391 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
392 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
393 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
394 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
395 public void cubicTo(float cx1, float cy1, float cx2, float cy2, float x, float y) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
396 if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
397 Gdip.GraphicsPath_AddBezier(handle, currentPoint.X, currentPoint.Y, cx1, cy1, cx2, cy2, x, y);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
398 Gdip.GraphicsPath_GetLastPoint(handle, currentPoint);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
399 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
400
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
401 void destroy() {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
402 Gdip.GraphicsPath_delete(handle);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
403 handle = null;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
404 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
405
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
406 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
407 * Replaces the first four elements in the parameter with values that
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
408 * describe the smallest rectangle that will completely contain the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
409 * receiver (i.e. the bounding box).
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
410 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
411 * @param bounds the array to hold the result
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
412 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
413 * @exception IllegalArgumentException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
414 * <li>ERROR_NULL_ARGUMENT - if the parameter is null</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
415 * <li>ERROR_INVALID_ARGUMENT - if the parameter is too small to hold the bounding box</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
416 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
417 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
418 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
419 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
420 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
421 public void getBounds(float[] bounds) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
422 if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
423 if (bounds is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
424 if (bounds.length < 4) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
425 Gdip.RectF rect;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
426 Gdip.GraphicsPath_GetBounds(handle, rect, null, null);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
427 bounds[0] = rect.X;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
428 bounds[1] = rect.Y;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
429 bounds[2] = rect.Width;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
430 bounds[3] = rect.Height;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
431 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
432
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
433 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
434 * Replaces the first two elements in the parameter with values that
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
435 * describe the current point of the path.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
436 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
437 * @param point the array to hold the result
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
438 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
439 * @exception IllegalArgumentException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
440 * <li>ERROR_NULL_ARGUMENT - if the parameter is null</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
441 * <li>ERROR_INVALID_ARGUMENT - if the parameter is too small to hold the end point</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
442 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
443 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
444 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
445 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
446 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
447 public void getCurrentPoint(float[] point) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
448 if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
449 if (point is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
450 if (point.length < 2) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
451 point[0] = currentPoint.X;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
452 point[1] = currentPoint.Y;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
453 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
454
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
455 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
456 * Returns a device independent representation of the receiver.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
457 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
458 * @return the PathData for the receiver
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
459 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
460 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
461 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
462 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
463 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
464 * @see PathData
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
465 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
466 public PathData getPathData() {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
467 if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
468 int count = Gdip.GraphicsPath_GetPointCount(handle);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
469 byte[] gdipTypes = new byte[count];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
470 float[] points = new float[count * 2];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
471 Gdip.GraphicsPath_GetPathTypes(handle, gdipTypes.ptr, count);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
472 Gdip.GraphicsPath_GetPathPoints(handle, cast(Gdip.PointF*)points.ptr, count);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
473 byte[] types = new byte[count * 2];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
474 int index = 0, typesIndex = 0;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
475 while (index < count) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
476 byte type = gdipTypes[index];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
477 bool close = false;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
478 switch (type & Gdip.PathPointTypePathTypeMask) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
479 case Gdip.PathPointTypeStart:
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
480 types[typesIndex++] = SWT.PATH_MOVE_TO;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
481 close = (type & Gdip.PathPointTypeCloseSubpath) !is 0;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
482 index += 1;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
483 break;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
484 case Gdip.PathPointTypeLine:
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
485 types[typesIndex++] = SWT.PATH_LINE_TO;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
486 close = (type & Gdip.PathPointTypeCloseSubpath) !is 0;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
487 index += 1;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
488 break;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
489 case Gdip.PathPointTypeBezier:
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
490 types[typesIndex++] = SWT.PATH_CUBIC_TO;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
491 close = (gdipTypes[index + 2] & Gdip.PathPointTypeCloseSubpath) !is 0;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
492 index += 3;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
493 break;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
494 default:
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
495 index++;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
496 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
497 if (close) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
498 types[typesIndex++] = SWT.PATH_CLOSE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
499 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
500 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
501 if (typesIndex !is types.length) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
502 byte[] newTypes = new byte[typesIndex];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
503 System.arraycopy(types, 0, newTypes, 0, typesIndex);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
504 types = newTypes;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
505 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
506 PathData result = new PathData();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
507 result.types = types;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
508 result.points = points;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
509 return result;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
510 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
511
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
512 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
513 * Adds to the receiver a line from the current point to
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
514 * the point specified by (x, y).
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
515 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
516 * @param x the x coordinate of the end of the line to add
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
517 * @param y the y coordinate of the end of the line to add
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
518 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
519 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
520 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
521 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
522 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
523 public void lineTo(float x, float y) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
524 if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
525 Gdip.GraphicsPath_AddLine(handle, currentPoint.X, currentPoint.Y, x, y);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
526 Gdip.GraphicsPath_GetLastPoint(handle, currentPoint);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
527 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
528
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
529 void init_(PathData data) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
530 byte[] types = data.types;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
531 float[] points = data.points;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
532 for (int i = 0, j = 0; i < types.length; i++) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
533 switch (types[i]) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
534 case SWT.PATH_MOVE_TO:
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
535 moveTo(points[j++], points[j++]);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
536 break;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
537 case SWT.PATH_LINE_TO:
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
538 lineTo(points[j++], points[j++]);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
539 break;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
540 case SWT.PATH_CUBIC_TO:
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
541 cubicTo(points[j++], points[j++], points[j++], points[j++], points[j++], points[j++]);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
542 break;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
543 case SWT.PATH_QUAD_TO:
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
544 quadTo(points[j++], points[j++], points[j++], points[j++]);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
545 break;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
546 case SWT.PATH_CLOSE:
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
547 close();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
548 break;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
549 default:
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
550 dispose();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
551 SWT.error(SWT.ERROR_INVALID_ARGUMENT);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
552 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
553 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
554 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
555
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
556 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
557 * Returns <code>true</code> if the Path has been disposed,
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
558 * and <code>false</code> otherwise.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
559 * <p>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
560 * This method gets the dispose state for the Path.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
561 * When a Path has been disposed, it is an error to
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
562 * invoke any other method using the Path.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
563 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
564 * @return <code>true</code> when the Path is disposed, and <code>false</code> otherwise
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
565 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
566 override public bool isDisposed() {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
567 return handle is null;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
568 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
569
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
570 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
571 * Sets the current point of the receiver to the point
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
572 * specified by (x, y). Note that this starts a new
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
573 * sub path.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
574 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
575 * @param x the x coordinate of the new end point
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
576 * @param y the y coordinate of the new end point
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
577 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
578 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
579 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
580 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
581 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
582 public void moveTo(float x, float y) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
583 if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
584 Gdip.GraphicsPath_StartFigure(handle);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
585 currentPoint.X = startPoint.X = x;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
586 currentPoint.Y = startPoint.Y = y;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
587 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
588
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
589 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
590 * Adds to the receiver a quadratic curve based on the parameters.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
591 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
592 * @param cx the x coordinate of the control point of the spline
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
593 * @param cy the y coordinate of the control point of the spline
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
594 * @param x the x coordinate of the end point of the spline
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
595 * @param y the y coordinate of the end point of the spline
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
596 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
597 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
598 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
599 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
600 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
601 public void quadTo(float cx, float cy, float x, float y) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
602 if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
603 float cx1 = currentPoint.X + 2 * (cx - currentPoint.X) / 3;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
604 float cy1 = currentPoint.Y + 2 * (cy - currentPoint.Y) / 3;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
605 float cx2 = cx1 + (x - currentPoint.X) / 3;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
606 float cy2 = cy1 + (y - currentPoint.Y) / 3;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
607 Gdip.GraphicsPath_AddBezier(handle, currentPoint.X, currentPoint.Y, cx1, cy1, cx2, cy2, x, y);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
608 Gdip.GraphicsPath_GetLastPoint(handle, currentPoint);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
609 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
610
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
611 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
612 * Returns a string containing a concise, human-readable
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
613 * description of the receiver.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
614 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
615 * @return a string representation of the receiver
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
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616 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
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617 override public String toString() {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
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618 if (isDisposed()) return "Path {*DISPOSED*}";
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
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619 return Format( "Path {{{}}", handle );
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
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620 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
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621
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
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622 }