Mercurial > projects > dwt-mac
annotate dwt/graphics/FontData.d @ 154:535243e6d16a
Fixes to make dwt compile with ldc
author | Jacob Carlborg <doob@me.com> |
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date | Sat, 13 Jun 2009 00:25:05 +0200 |
parents | d8635bb48c7c |
children |
rev | line source |
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45 | 1 /******************************************************************************* |
2 * Copyright (c) 2000, 2008 IBM Corporation and others. | |
0
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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: |
45 | 12 * Jacob Carlborg <doob@me.com> |
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13 *******************************************************************************/ |
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14 module dwt.graphics.FontData; |
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15 |
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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 |
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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 |
45 | 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 */ |
5 | 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 * |
30
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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 */ |
5 | 197 public this(String name, int height, int style) { |
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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) { |
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220 if (object is this) return true; |
8 | 221 if (!( null !is cast(FontData)object )) return false; |
7 | 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 |
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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() { |
7 | 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
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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); |
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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(); |
154
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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); |
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453 return buffer.toString(); |
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454 } |
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455 |
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456 } |