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Fixes to get dwt to work with dmd and ldc
author Jacob Carlborg <doob@me.com>
date Wed, 08 Jul 2009 21:56:44 +0200
parents 535243e6d16a
children
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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 *
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11 * Port to the D programming language:
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12 * Jacob Carlborg <doob@me.com>
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13 *******************************************************************************/
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14 module dwt.graphics.FontData;
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16
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17 import dwt.DWT;
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18
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19 import dwt.dwthelper.utils;
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20
0
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21 /**
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22 * Instances of this class describe operating system fonts.
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23 * <p>
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24 * For platform-independent behaviour, use the get and set methods
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25 * corresponding to the following properties:
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26 * <dl>
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27 * <dt>height</dt><dd>the height of the font in points</dd>
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28 * <dt>name</dt><dd>the face name of the font, which may include the foundry</dd>
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29 * <dt>style</dt><dd>A bitwise combination of NORMAL, ITALIC and BOLD</dd>
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30 * </dl>
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31 * If extra, platform-dependent functionality is required:
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32 * <ul>
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33 * <li>On <em>Windows</em>, the data member of the <code>FontData</code>
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34 * corresponds to a Windows <code>LOGFONT</code> structure whose fields
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35 * may be retrieved and modified.</li>
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36 * <li>On <em>X</em>, the fields of the <code>FontData</code> correspond
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37 * to the entries in the font's XLFD name and may be retrieved and modified.
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38 * </ul>
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39 * Application code does <em>not</em> need to explicitly release the
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40 * resources managed by each instance when those instances are no longer
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41 * required, and thus no <code>dispose()</code> method is provided.
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42 *
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43 * @see Font
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44 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
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45 */
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46 public final class FontData {
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47 /**
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48 * the font name
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49 * (Warning: This field is platform dependent)
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50 * <p>
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51 * <b>IMPORTANT:</b> This field is <em>not</em> part of the DWT
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52 * public API. It is marked public only so that it can be shared
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53 * within the packages provided by DWT. It is not available on all
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54 * platforms and should never be accessed from application code.
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55 * </p>
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56 */
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57 public String name;
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58
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59 /**
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60 * The height of the font data in points
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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 DWT
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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 DWT. 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 float height;
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70
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71 /**
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72 * the font style
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73 * (Warning: This field is platform dependent)
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74 * <p>
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75 * <b>IMPORTANT:</b> This field is <em>not</em> part of the DWT
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76 * public API. It is marked public only so that it can be shared
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77 * within the packages provided by DWT. It is not available on all
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78 * platforms and should never be accessed from application code.
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79 * </p>
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80 */
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81 public int style;
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82
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83 /**
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84 * the NSFont font name
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85 * (Warning: This field is platform dependent)
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86 * <p>
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87 * <b>IMPORTANT:</b> This field is <em>not</em> part of the DWT
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88 * public API. It is marked public only so that it can be shared
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89 * within the packages provided by DWT. It is not available on all
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90 * platforms and should never be accessed from application code.
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91 * </p>
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92 */
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93 public String nsName;
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94
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95 /**
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96 * The locales of the font
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97 */
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98 String lang, country, variant;
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99
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100 /**
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101 * Constructs a new uninitialized font data.
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102 */
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103 public this () {
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104 this("", 12, DWT.NORMAL);
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105 }
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106
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107 /**
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108 * Constructs a new FontData given a string representation
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109 * in the form generated by the <code>FontData.toString</code>
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110 * method.
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111 * <p>
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112 * Note that the representation varies between platforms,
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113 * and a FontData can only be created from a string that was
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114 * generated on the same platform.
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115 * </p>
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116 *
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117 * @param str the string representation of a <code>FontData</code> (must not be null)
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118 *
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119 * @exception IllegalArgumentException <ul>
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120 * <li>ERROR_NULL_ARGUMENT - if the argument is null</li>
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121 * <li>ERROR_INVALID_ARGUMENT - if the argument does not represent a valid description</li>
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122 * </ul>
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123 *
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124 * @see #toString
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125 */
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126 public this(String str) {
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127 //if (str is null) DWT.error(DWT.ERROR_NULL_ARGUMENT);
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128 int start = 0;
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129 int end = str.indexOf('|');
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130 if (end is -1) DWT.error(DWT.ERROR_INVALID_ARGUMENT);
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131 String version1 = str.substring(start, end);
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132 try {
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133 if (Integer.parseInt(version1) !is 1) DWT.error(DWT.ERROR_INVALID_ARGUMENT);
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134 } catch (NumberFormatException e) {
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135 DWT.error(DWT.ERROR_INVALID_ARGUMENT);
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136 }
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137
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138 start = end + 1;
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139 end = str.indexOf('|', start);
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140 if (end is -1) DWT.error(DWT.ERROR_INVALID_ARGUMENT);
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141 String name = str.substring(start, end);
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142
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143 start = end + 1;
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144 end = str.indexOf('|', start);
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145 if (end is -1) DWT.error(DWT.ERROR_INVALID_ARGUMENT);
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146 float height = 0;
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147 try {
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148 height = Float.parseFloat(str.substring(start, end));
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149 } catch (NumberFormatException e) {
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150 DWT.error(DWT.ERROR_INVALID_ARGUMENT);
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151 }
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152
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153 start = end + 1;
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154 end = str.indexOf('|', start);
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155 if (end is -1) DWT.error(DWT.ERROR_INVALID_ARGUMENT);
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156 int style = 0;
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157 try {
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158 style = Integer.parseInt(str.substring(start, end));
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159 } catch (NumberFormatException e) {
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160 DWT.error(DWT.ERROR_INVALID_ARGUMENT);
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161 }
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162
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163 start = end + 1;
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164 end = str.indexOf('|', start);
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165 setName(name);
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166 setHeight(height);
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167 setStyle(style);
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168 if (end is -1) return;
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169 String platform = str.substring(start, end);
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170
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171 start = end + 1;
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172 end = str.indexOf('|', start);
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173 if (end is -1) return;
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174 String version2 = str.substring(start, end);
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175
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176 if (platform.equals("COCOA") && version2.equals("1")) {
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177 start = end + 1;
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178 end = str.length();
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179 if (start < end) nsName = str.substring(start, end);
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180 }
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181 }
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182
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183 /**
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184 * Constructs a new font data given a font name,
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185 * the height of the desired font in points,
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186 * and a font style.
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187 *
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188 * @param name the name of the font (must not be null)
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189 * @param height the font height in points
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190 * @param style a bit or combination of NORMAL, BOLD, ITALIC
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191 *
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192 * @exception IllegalArgumentException <ul>
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193 * <li>ERROR_NULL_ARGUMENT - when the font name is null</li>
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194 * <li>ERROR_INVALID_ARGUMENT - if the height is negative</li>
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195 * </ul>
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196 */
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197 public this(String name, int height, int style) {
0
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198 setName(name);
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199 setHeight(height);
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200 setStyle(style);
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201 }
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202
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203 /*public*/ this(String name, float height, int style) {
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204 setName(name);
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205 setHeight(height);
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206 setStyle(style);
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207 }
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208
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209 /**
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210 * Compares the argument to the receiver, and returns true
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211 * if they represent the <em>same</em> object using a class
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212 * specific comparison.
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213 *
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214 * @param object the object to compare with this object
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215 * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise
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216 *
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217 * @see #hashCode
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218 */
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219 public int opEquals (Object object) {
0
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220 if (object is this) return true;
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221 if (!( null !is cast(FontData)object )) return false;
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222 FontData data = cast(FontData)object;
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223 return name.equals(data.name) && height is data.height && style is data.style;
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224 }
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225
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226 //alias opEquals equals;
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227
0
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228 /**
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229 * Returns the height of the receiver in points.
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230 *
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231 * @return the height of this FontData
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232 *
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233 * @see #setHeight(int)
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234 */
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235 public int getHeight() {
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236 return cast(int)height;
0
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237 }
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238
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239 /*public*/ float getHeightF() {
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240 return height;
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241 }
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242
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243 /**
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244 * Returns the locale of the receiver.
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245 * <p>
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246 * The locale determines which platform character set this
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247 * font is going to use. Widgets and graphics operations that
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248 * use this font will convert UNICODE strings to the platform
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249 * character set of the specified locale.
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250 * </p>
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251 * <p>
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252 * On platforms where there are multiple character sets for a
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253 * given language/country locale, the variant portion of the
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254 * locale will determine the character set.
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255 * </p>
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256 *
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257 * @return the <code>String</code> representing a Locale object
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258 * @since 3.0
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259 */
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260 public String getLocale () {
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261 StringBuffer buffer = new StringBuffer ();
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262 char sep = '_';
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263 if (lang !is null) {
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264 buffer.append (lang);
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265 buffer.append (sep);
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266 }
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267 if (country !is null) {
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268 buffer.append (country);
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269 buffer.append (sep);
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270 }
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271 if (variant !is null) {
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272 buffer.append (variant);
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273 }
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274
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275 String result = buffer.toString ();
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276 int length = result.length ();
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277 if (length > 0) {
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278 if (result.charAt (length - 1) is sep) {
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279 result = result.substring (0, length - 1);
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280 }
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281 }
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282 return result;
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283 }
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284
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285 /**
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286 * Returns the name of the receiver.
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287 * On platforms that support font foundries, the return value will
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288 * be the foundry followed by a dash ("-") followed by the face name.
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289 *
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290 * @return the name of this <code>FontData</code>
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291 *
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292 * @see #setName
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293 */
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294 public String getName() {
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295 return name;
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296 }
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297
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298 /**
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299 * Returns the style of the receiver which is a bitwise OR of
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300 * one or more of the <code>DWT</code> constants NORMAL, BOLD
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301 * and ITALIC.
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302 *
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303 * @return the style of this <code>FontData</code>
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304 *
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305 * @see #setStyle
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306 */
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307 public int getStyle() {
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308 return style;
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309 }
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310
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311 /**
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312 * Returns an integer hash code for the receiver. Any two
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313 * objects that return <code>true</code> when passed to
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314 * <code>equals</code> must return the same value for this
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315 * method.
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316 *
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317 * @return the receiver's hash
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318 *
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319 * @see #equals
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320 */
36
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321 public hash_t toHash () {
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322 return typeid(String).getHash(&name) ^ getHeight() ^ style;
0
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323 }
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324
30
93b13b15f0b1 Ported a couple of modules in dwt.graphics
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325 alias toHash hashCode;
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326
0
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327 /**
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328 * Sets the height of the receiver. The parameter is
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329 * specified in terms of points, where a point is one
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330 * seventy-second of an inch.
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331 *
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332 * @param height the height of the <code>FontData</code>
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333 *
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334 * @exception IllegalArgumentException <ul>
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335 * <li>ERROR_INVALID_ARGUMENT - if the height is negative</li>
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336 * </ul>
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337 *
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338 * @see #getHeight
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339 */
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340 public void setHeight(int height) {
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341 if (height < 0) DWT.error(DWT.ERROR_INVALID_ARGUMENT);
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342 this.height = height;
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343 }
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344
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345 /*public*/ void setHeight(float height) {
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346 if (height < 0) DWT.error(DWT.ERROR_INVALID_ARGUMENT);
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347 this.height = height;
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348 }
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349
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350 /**
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351 * Sets the locale of the receiver.
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352 * <p>
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353 * The locale determines which platform character set this
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354 * font is going to use. Widgets and graphics operations that
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355 * use this font will convert UNICODE strings to the platform
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356 * character set of the specified locale.
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357 * </p>
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358 * <p>
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359 * On platforms where there are multiple character sets for a
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360 * given language/country locale, the variant portion of the
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361 * locale will determine the character set.
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362 * </p>
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363 *
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364 * @param locale the <code>String</code> representing a Locale object
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365 * @see java.util.Locale#toString
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366 */
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367 public void setLocale(String locale) {
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368 lang = country = variant = null;
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369 if (locale !is null) {
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370 char sep = '_';
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371 int length = locale.length();
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372 int firstSep, secondSep;
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373
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374 firstSep = locale.indexOf(sep);
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375 if (firstSep is -1) {
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376 firstSep = secondSep = length;
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377 } else {
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378 secondSep = locale.indexOf(sep, firstSep + 1);
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379 if (secondSep is -1) secondSep = length;
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380 }
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381 if (firstSep > 0) lang = locale.substring(0, firstSep);
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382 if (secondSep > firstSep + 1) country = locale.substring(firstSep + 1, secondSep);
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383 if (length > secondSep + 1) variant = locale.substring(secondSep + 1);
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384 }
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385 }
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386
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387 /**
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388 * Sets the name of the receiver.
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389 * <p>
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390 * Some platforms support font foundries. On these platforms, the name
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391 * of the font specified in setName() may have one of the following forms:
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392 * <ol>
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393 * <li>a face name (for example, "courier")</li>
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394 * <li>a foundry followed by a dash ("-") followed by a face name (for example, "adobe-courier")</li>
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395 * </ol>
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396 * In either case, the name returned from getName() will include the
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397 * foundry.
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398 * </p>
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399 * <p>
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400 * On platforms that do not support font foundries, only the face name
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401 * (for example, "courier") is used in <code>setName()</code> and
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402 * <code>getName()</code>.
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403 * </p>
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404 *
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405 * @param name the name of the font data (must not be null)
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406 * @exception IllegalArgumentException <ul>
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407 * <li>ERROR_NULL_ARGUMENT - when the font name is null</li>
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408 * </ul>
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409 *
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410 * @see #getName
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411 */
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412 public void setName(String name) {
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413 //if (name is null) DWT.error(DWT.ERROR_NULL_ARGUMENT);
0
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414 this.name = name;
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415 nsName = null;
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416 }
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417
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418 /**
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419 * Sets the style of the receiver to the argument which must
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420 * be a bitwise OR of one or more of the <code>DWT</code>
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421 * constants NORMAL, BOLD and ITALIC. All other style bits are
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422 * ignored.
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423 *
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424 * @param style the new style for this <code>FontData</code>
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425 *
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426 * @see #getStyle
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427 */
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428 public void setStyle(int style) {
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429 this.style = style;
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430 nsName = null;
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431 }
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432
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433 /**
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434 * Returns a string representation of the receiver which is suitable
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435 * for constructing an equivalent instance using the
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436 * <code>FontData(String)</code> constructor.
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437 *
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438 * @return a string representation of the FontData
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439 *
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440 * @see FontData
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441 */
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442 public String toString() {
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443 StringBuffer buffer = new StringBuffer();
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444 buffer.format("{}", "1|");
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445 buffer.format("{}", getName());
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446 buffer.format("{}", "|");
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447 buffer.format("{}", getHeightF());
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448 buffer.format("{}", "|");
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449 buffer.format("{}", getStyle());
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450 buffer.format("{}", "|");
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451 buffer.format("{}", "COCOA|1|");
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452 if (nsName !is null) buffer.format("{}", nsName);
0
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453 return buffer.toString();
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454 }
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455
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456 }