annotate dwt/graphics/Device.d @ 7:e831403a80a9

Add 'cast' to casts
author Frank Benoit <benoit@tionex.de>
date Wed, 27 Aug 2008 14:30:35 +0200
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2007 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 *******************************************************************************/
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11 module dwt.graphics.Device;
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12
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13 import dwt.dwthelper.utils;
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14
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15 import dwt.DWT;
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16 import dwt.DWTException;
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17 import dwt.internal.Compatibility;
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18 import dwt.internal.cocoa.NSArray;
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19 import dwt.internal.cocoa.NSDictionary;
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20 import dwt.internal.cocoa.NSFont;
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21 import dwt.internal.cocoa.NSFontManager;
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22 import dwt.internal.cocoa.NSRect;
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23 import dwt.internal.cocoa.NSScreen;
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24 import dwt.internal.cocoa.NSSize;
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25 import dwt.internal.cocoa.NSString;
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26 import dwt.internal.cocoa.NSValue;
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27 import dwt.internal.cocoa.OS;
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28 import dwt.internal.cocoa.id;
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29
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30 /**
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31 * This class is the abstract superclass of all device objects,
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32 * such as the Display device and the Printer device. Devices
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33 * can have a graphics context cast(GC) created for them, and they
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34 * can be drawn on by sending messages to the associated GC.
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35 */
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36 public abstract class Device : Drawable {
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37
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38 /* Debugging */
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39 public static bool DEBUG;
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40 bool debug = DEBUG;
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41 bool tracking = DEBUG;
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42 Error [] errors;
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43 Object [] objects;
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44 Object trackingLock;
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45
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46 /* Disposed flag */
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47 bool disposed, warnings;
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48
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49 Color COLOR_BLACK, COLOR_DARK_RED, COLOR_DARK_GREEN, COLOR_DARK_YELLOW, COLOR_DARK_BLUE;
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50 Color COLOR_DARK_MAGENTA, COLOR_DARK_CYAN, COLOR_GRAY, COLOR_DARK_GRAY, COLOR_RED;
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51 Color COLOR_GREEN, COLOR_YELLOW, COLOR_BLUE, COLOR_MAGENTA, COLOR_CYAN, COLOR_WHITE;
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52
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53 /* System Font */
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54 Font systemFont;
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55
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56 /*
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57 * TEMPORARY CODE. When a graphics object is
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58 * created and the device parameter is null,
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59 * the current Display is used. This presents
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60 * a problem because DWT graphics does not
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61 * reference classes in DWT widgets. The correct
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62 * fix is to remove this feature. Unfortunately,
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63 * too many application programs rely on this
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64 * feature.
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65 *
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66 * This code will be removed in the future.
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67 */
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68 protected static Device CurrentDevice;
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69 protected static Runnable DeviceFinder;
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70 static {
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71 try {
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72 Class.forName ("dwt.widgets.Display");
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73 } catch (Throwable e) {}
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74 }
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75
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76 /*
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77 * TEMPORARY CODE.
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78 */
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79 static synchronized Device getDevice () {
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80 if (DeviceFinder !is null) DeviceFinder.run();
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81 Device device = CurrentDevice;
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82 CurrentDevice = null;
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83 return device;
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84 }
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85
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86 /**
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87 * Constructs a new instance of this class.
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88 * <p>
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89 * You must dispose the device when it is no longer required.
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90 * </p>
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91 *
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92 * @see #create
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93 * @see #init
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94 *
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95 * @since 3.1
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96 */
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97 public this() {
0
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98 this(null);
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99 }
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100
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101 /**
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102 * Constructs a new instance of this class.
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103 * <p>
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104 * You must dispose the device when it is no longer required.
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105 * </p>
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106 *
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107 * @param data the DeviceData which describes the receiver
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108 *
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109 * @see #create
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110 * @see #init
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111 * @see DeviceData
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112 */
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113 public this(DeviceData data) {
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114 synchronized (Device.class) {
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115 if (data !is null) {
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116 debug = data.debug;
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117 tracking = data.tracking;
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118 }
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119 if (tracking) {
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120 errors = new Error [128];
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121 objects = new Object [128];
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122 trackingLock = new Object ();
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123 }
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124 create (data);
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125 init ();
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126 }
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127 }
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128
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129 /**
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130 * Throws an <code>DWTException</code> if the receiver can not
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131 * be accessed by the caller. This may include both checks on
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132 * the state of the receiver and more generally on the entire
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133 * execution context. This method <em>should</em> be called by
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134 * device implementors to enforce the standard DWT invariants.
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135 * <p>
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136 * Currently, it is an error to invoke any method (other than
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137 * <code>isDisposed()</code> and <code>dispose()</code>) on a
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138 * device that has had its <code>dispose()</code> method called.
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139 * </p><p>
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140 * In future releases of DWT, there may be more or fewer error
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141 * checks and exceptions may be thrown for different reasons.
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142 * <p>
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143 *
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144 * @exception DWTException <ul>
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145 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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146 * </ul>
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147 */
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148 protected void checkDevice () {
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149 if (disposed) DWT.error(DWT.ERROR_DEVICE_DISPOSED);
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150 }
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151
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152 /**
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153 * Creates the device in the operating system. If the device
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154 * does not have a handle, this method may do nothing depending
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155 * on the device.
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156 * <p>
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157 * This method is called before <code>init</code>.
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158 * </p><p>
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159 * Subclasses are supposed to reimplement this method and not
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160 * call the <code>super</code> implementation.
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161 * </p>
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162 *
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163 * @param data the DeviceData which describes the receiver
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164 *
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165 * @see #init
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166 */
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167 protected void create (DeviceData data) {
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168 }
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169
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170 /**
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171 * Disposes of the operating system resources associated with
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172 * the receiver. After this method has been invoked, the receiver
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173 * will answer <code>true</code> when sent the message
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174 * <code>isDisposed()</code>.
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175 *
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176 * @see #release
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177 * @see #destroy
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178 * @see #checkDevice
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179 */
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180 public void dispose () {
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181 synchronized (Device.class) {
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182 if (isDisposed()) return;
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183 checkDevice ();
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184 release ();
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185 destroy ();
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186 disposed = true;
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187 if (tracking) {
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188 synchronized (trackingLock) {
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189 objects = null;
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190 errors = null;
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191 trackingLock = null;
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192 }
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193 }
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194 }
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195 }
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196
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197 void dispose_Object (Object object) {
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198 synchronized (trackingLock) {
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199 for (int i=0; i<objects.length; i++) {
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200 if (objects [i] is object) {
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201 objects [i] = null;
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202 errors [i] = null;
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203 return;
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204 }
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205 }
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206 }
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207 }
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208
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209 /**
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210 * Destroys the device in the operating system and releases
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211 * the device's handle. If the device does not have a handle,
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212 * this method may do nothing depending on the device.
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213 * <p>
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214 * This method is called after <code>release</code>.
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215 * </p><p>
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216 * Subclasses are supposed to reimplement this method and not
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217 * call the <code>super</code> implementation.
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218 * </p>
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219 *
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220 * @see #dispose
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221 * @see #release
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222 */
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223 protected void destroy () {
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224 }
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225
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226 /**
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227 * Returns a rectangle describing the receiver's size and location.
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228 *
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229 * @return the bounding rectangle
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230 *
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231 * @exception DWTException <ul>
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232 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
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233 * </ul>
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234 */
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235 public Rectangle getBounds () {
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236 checkDevice ();
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237 NSScreen screen = NSScreen.mainScreen();
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238 NSRect rect = screen.frame();
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e831403a80a9 Add 'cast' to casts
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239 return new Rectangle(cast(int)rect.x, cast(int)rect.y, cast(int)rect.width, cast(int)rect.height);
0
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240 }
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241
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242 /**
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243 * Returns a <code>DeviceData</code> based on the receiver.
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244 * Modifications made to this <code>DeviceData</code> will not
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245 * affect the receiver.
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246 *
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247 * @return a <code>DeviceData</code> containing the device's data and attributes
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248 *
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249 * @exception DWTException <ul>
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250 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
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251 * </ul>
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252 *
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253 * @see DeviceData
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254 */
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255 public DeviceData getDeviceData () {
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256 checkDevice();
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257 DeviceData data = new DeviceData ();
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258 data.debug = debug;
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259 data.tracking = tracking;
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260 if (tracking) {
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261 synchronized (trackingLock) {
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262 int count = 0, length = objects.length;
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263 for (int i=0; i<length; i++) {
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264 if (objects [i] !is null) count++;
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265 }
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266 int index = 0;
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267 data.objects = new Object [count];
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268 data.errors = new Error [count];
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269 for (int i=0; i<length; i++) {
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270 if (objects [i] !is null) {
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271 data.objects [index] = objects [i];
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272 data.errors [index] = errors [i];
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273 index++;
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274 }
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275 }
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276 }
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277 } else {
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278 data.objects = new Object [0];
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279 data.errors = new Error [0];
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280 }
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281 return data;
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282 }
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283
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284 /**
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285 * Returns a rectangle which describes the area of the
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286 * receiver which is capable of displaying data.
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287 *
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288 * @return the client area
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289 *
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290 * @exception DWTException <ul>
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291 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
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292 * </ul>
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293 *
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294 * @see #getBounds
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295 */
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296 public Rectangle getClientArea () {
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297 checkDevice ();
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298 NSScreen screen = NSScreen.mainScreen();
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299 NSRect rect = screen.visibleFrame();
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300 return new Rectangle(cast(int)rect.x, cast(int)rect.y, cast(int)rect.width, cast(int)rect.height);
0
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301 }
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302
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303 /**
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304 * Returns the bit depth of the screen, which is the number of
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305 * bits it takes to represent the number of unique colors that
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306 * the screen is currently capable of displaying. This number
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307 * will typically be one of 1, 8, 15, 16, 24 or 32.
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308 *
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309 * @return the depth of the screen
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310 *
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311 * @exception DWTException <ul>
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312 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
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313 * </ul>
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314 */
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315 public int getDepth () {
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316 checkDevice ();
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317 return OS.NSBitsPerPixelFromDepth(NSScreen.mainScreen().depth());
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318 }
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319
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320 /**
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321 * Returns a point whose x coordinate is the horizontal
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322 * dots per inch of the display, and whose y coordinate
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323 * is the vertical dots per inch of the display.
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324 *
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325 * @return the horizontal and vertical DPI
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326 *
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327 * @exception DWTException <ul>
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328 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
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329 * </ul>
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330 */
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331 public Point getDPI () {
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332 checkDevice ();
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333 NSDictionary dictionary = NSScreen.mainScreen().deviceDescription();
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334 NSValue value = new NSValue(dictionary.objectForKey(new id(OS.NSDeviceResolution())).id);
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335 NSSize size = value.sizeValue();
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336 return new Point(cast(int)size.width, cast(int)size.height);
0
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337 }
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338
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339 /**
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340 * Returns <code>FontData</code> objects which describe
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341 * the fonts that match the given arguments. If the
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342 * <code>faceName</code> is null, all fonts will be returned.
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343 *
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344 * @param faceName the name of the font to look for, or null
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345 * @param scalable if true only scalable fonts are returned, otherwise only non-scalable fonts are returned.
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346 * @return the matching font data
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347 *
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348 * @exception DWTException <ul>
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349 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
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350 * </ul>
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351 */
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352 public FontData[] getFontList (String faceName, bool scalable) {
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353 checkDevice ();
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354 if (!scalable) return new FontData[0];
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355 NSArray fonts = NSFontManager.sharedFontManager().availableFonts();
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356 int count = 0;
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357 FontData[] fds = new FontData[fonts.count()];
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358 for (int i = 0; i < fds.length; i++) {
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359 NSString str = new NSString(fonts.objectAtIndex(i));
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360 char[] buffer = new char[str.length()];
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361 str.getCharacters_(buffer);
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362 String nsName = new String(buffer);
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363 String name = nsName;
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364 int index = nsName.indexOf('-');
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365 if (index !is -1) name = name.substring(0, index);
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366 int style = DWT.NORMAL;
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367 if (nsName.indexOf("Italic") !is -1) style |= DWT.ITALIC;
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368 if (nsName.indexOf("Bold") !is -1) style |= DWT.BOLD;
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369 if (faceName is null || Compatibility.equalsIgnoreCase(faceName, name)) {
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370 FontData data = new FontData(name, 0, style);
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371 data.nsName = nsName;
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372 fds[count++] = data;
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373 }
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374 }
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375 if (count is fds.length) return fds;
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376 FontData[] result = new FontData[count];
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377 System.arraycopy(fds, 0, result, 0, count);
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378 return result;
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379 }
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parents:
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380
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381 /**
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382 * Returns the matching standard color for the given
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383 * constant, which should be one of the color constants
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parents:
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384 * specified in class <code>DWT</code>. Any value other
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parents:
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385 * than one of the DWT color constants which is passed
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386 * in will result in the color black. This color should
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parents:
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387 * not be freed because it was allocated by the system,
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388 * not the application.
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389 *
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390 * @param id the color constant
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391 * @return the matching color
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diff changeset
392 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
393 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
394 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
395 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
396 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
397 * @see DWT
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
398 */
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
399 public Color getSystemColor (int id) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
400 checkDevice ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
401 switch (id) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
402 case DWT.COLOR_BLACK: return COLOR_BLACK;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
403 case DWT.COLOR_DARK_RED: return COLOR_DARK_RED;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
404 case DWT.COLOR_DARK_GREEN: return COLOR_DARK_GREEN;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
405 case DWT.COLOR_DARK_YELLOW: return COLOR_DARK_YELLOW;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
406 case DWT.COLOR_DARK_BLUE: return COLOR_DARK_BLUE;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
407 case DWT.COLOR_DARK_MAGENTA: return COLOR_DARK_MAGENTA;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
408 case DWT.COLOR_DARK_CYAN: return COLOR_DARK_CYAN;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
409 case DWT.COLOR_GRAY: return COLOR_GRAY;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
410 case DWT.COLOR_DARK_GRAY: return COLOR_DARK_GRAY;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
411 case DWT.COLOR_RED: return COLOR_RED;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
412 case DWT.COLOR_GREEN: return COLOR_GREEN;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
413 case DWT.COLOR_YELLOW: return COLOR_YELLOW;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
414 case DWT.COLOR_BLUE: return COLOR_BLUE;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
415 case DWT.COLOR_MAGENTA: return COLOR_MAGENTA;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
416 case DWT.COLOR_CYAN: return COLOR_CYAN;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
417 case DWT.COLOR_WHITE: return COLOR_WHITE;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
418 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
419 return COLOR_BLACK;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
420 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
421
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
422 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
423 * Returns a reasonable font for applications to use.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
424 * On some platforms, this will match the "default font"
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
425 * or "system font" if such can be found. This font
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
426 * should not be freed because it was allocated by the
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
427 * system, not the application.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
428 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
429 * Typically, applications which want the default look
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
430 * should simply not set the font on the widgets they
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
431 * create. Widgets are always created with the correct
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
432 * default font for the class of user-interface component
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
433 * they represent.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
434 * </p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
435 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
436 * @return a font
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
437 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
438 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
439 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
440 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
441 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
442 public Font getSystemFont () {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
443 checkDevice ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
444 return systemFont;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
445 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
446
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
447 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
448 * Returns <code>true</code> if the underlying window system prints out
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
449 * warning messages on the console, and <code>setWarnings</code>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
450 * had previously been called with <code>true</code>.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
451 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
452 * @return <code>true</code>if warnings are being handled, and <code>false</code> otherwise
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
453 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
454 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
455 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
456 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
457 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
458 public bool getWarnings () {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
459 checkDevice ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
460 return warnings;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
461 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
462
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
463 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
464 * Initializes any internal resources needed by the
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
465 * device.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
466 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
467 * This method is called after <code>create</code>.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
468 * </p><p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
469 * If subclasses reimplement this method, they must
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
470 * call the <code>super</code> implementation.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
471 * </p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
472 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
473 * @see #create
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
474 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
475 protected void init () {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
476 /* Create the standard colors */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
477 COLOR_BLACK = new Color (this, 0,0,0);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
478 COLOR_DARK_RED = new Color (this, 0x80,0,0);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
479 COLOR_DARK_GREEN = new Color (this, 0,0x80,0);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
480 COLOR_DARK_YELLOW = new Color (this, 0x80,0x80,0);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
481 COLOR_DARK_BLUE = new Color (this, 0,0,0x80);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
482 COLOR_DARK_MAGENTA = new Color (this, 0x80,0,0x80);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
483 COLOR_DARK_CYAN = new Color (this, 0,0x80,0x80);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
484 COLOR_GRAY = new Color (this, 0xC0,0xC0,0xC0);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
485 COLOR_DARK_GRAY = new Color (this, 0x80,0x80,0x80);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
486 COLOR_RED = new Color (this, 0xFF,0,0);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
487 COLOR_GREEN = new Color (this, 0,0xFF,0);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
488 COLOR_YELLOW = new Color (this, 0xFF,0xFF,0);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
489 COLOR_BLUE = new Color (this, 0,0,0xFF);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
490 COLOR_MAGENTA = new Color (this, 0xFF,0,0xFF);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
491 COLOR_CYAN = new Color (this, 0,0xFF,0xFF);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
492 COLOR_WHITE = new Color (this, 0xFF,0xFF,0xFF);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
493
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
494 /* Initialize the system font slot */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
495 NSFont font = NSFont.systemFontOfSize(NSFont.systemFontSize());
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
496 systemFont = Font.cocoa_new(this, font);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
497 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
498
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
499 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
500 * Invokes platform specific functionality to allocate a new GC handle.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
501 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
502 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
503 * API for <code>Device</code>. It is marked public only so that it
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
504 * can be shared within the packages provided by DWT. It is not
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
505 * available on all platforms, and should never be called from
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
506 * application code.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
507 * </p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
508 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
509 * @param data the platform specific GC data
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
510 * @return the platform specific GC handle
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
511 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
512 public abstract int internal_new_GC (GCData data);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
513
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
514 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
515 * Invokes platform specific functionality to dispose a GC handle.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
516 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
517 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
518 * API for <code>Device</code>. It is marked public only so that it
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
519 * can be shared within the packages provided by DWT. It is not
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
520 * available on all platforms, and should never be called from
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
521 * application code.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
522 * </p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
523 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
524 * @param hDC the platform specific GC handle
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
525 * @param data the platform specific GC data
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
526 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
527 public abstract void internal_dispose_GC (int handle, GCData data);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
528
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
529 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
530 * Returns <code>true</code> if the device has been disposed,
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
531 * and <code>false</code> otherwise.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
532 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
533 * This method gets the dispose state for the device.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
534 * When a device has been disposed, it is an error to
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
535 * invoke any other method using the device.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
536 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
537 * @return <code>true</code> when the device is disposed and <code>false</code> otherwise
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
538 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
539 public bool isDisposed () {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
540 synchronized (Device.class) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
541 return disposed;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
542 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
543 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
544
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
545 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
546 * Loads the font specified by a file. The font will be
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
547 * present in the list of fonts available to the application.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
548 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
549 * @param path the font file path
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
550 * @return whether the font was successfully loaded
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
551 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
552 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
553 * <li>ERROR_NULL_ARGUMENT - if path is null</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
554 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
555 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
556 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
557 * @see Font
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
558 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
559 * @since 3.3
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
560 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
561 public bool loadFont (String path) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
562 checkDevice();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
563 if (path is null) DWT.error(DWT.ERROR_NULL_ARGUMENT);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
564 bool result = false;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
565 char [] chars = new char [path.length ()];
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
566 path.getChars (0, chars.length, chars, 0);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
567 return result;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
568 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
569
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
570 void new_Object (Object object) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
571 synchronized (trackingLock) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
572 for (int i=0; i<objects.length; i++) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
573 if (objects [i] is null) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
574 objects [i] = object;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
575 errors [i] = new Error ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
576 return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
577 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
578 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
579 Object [] newObjects = new Object [objects.length + 128];
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
580 System.arraycopy (objects, 0, newObjects, 0, objects.length);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
581 newObjects [objects.length] = object;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
582 objects = newObjects;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
583 Error [] newErrors = new Error [errors.length + 128];
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
584 System.arraycopy (errors, 0, newErrors, 0, errors.length);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
585 newErrors [errors.length] = new Error ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
586 errors = newErrors;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
587 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
588 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
589
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
590 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
591 * Releases any internal resources back to the operating
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
592 * system and clears all fields except the device handle.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
593 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
594 * When a device is destroyed, resources that were acquired
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
595 * on behalf of the programmer need to be returned to the
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
596 * operating system. For example, if the device allocated a
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
597 * font to be used as the system font, this font would be
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
598 * freed in <code>release</code>. Also,to assist the garbage
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
599 * collector and minimize the amount of memory that is not
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
600 * reclaimed when the programmer keeps a reference to a
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
601 * disposed device, all fields except the handle are zero'd.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
602 * The handle is needed by <code>destroy</code>.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
603 * </p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
604 * This method is called before <code>destroy</code>.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
605 * </p><p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
606 * If subclasses reimplement this method, they must
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
607 * call the <code>super</code> implementation.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
608 * </p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
609 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
610 * @see #dispose
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
611 * @see #destroy
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
612 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
613 protected void release () {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
614 COLOR_BLACK = COLOR_DARK_RED = COLOR_DARK_GREEN = COLOR_DARK_YELLOW = COLOR_DARK_BLUE =
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
615 COLOR_DARK_MAGENTA = COLOR_DARK_CYAN = COLOR_GRAY = COLOR_DARK_GRAY = COLOR_RED =
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
616 COLOR_GREEN = COLOR_YELLOW = COLOR_BLUE = COLOR_MAGENTA = COLOR_CYAN = COLOR_WHITE = null;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
617 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
618
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
619 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
620 * If the underlying window system supports printing warning messages
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
621 * to the console, setting warnings to <code>false</code> prevents these
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
622 * messages from being printed. If the argument is <code>true</code> then
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
623 * message printing is not blocked.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
624 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
625 * @param warnings <code>true</code>if warnings should be printed, and <code>false</code> otherwise
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
626 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
627 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
628 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
629 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
630 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
631 public void setWarnings (bool warnings) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
632 checkDevice ();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
633 this.warnings = warnings;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
634 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
635
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
636 }