Mercurial > projects > dwt-win
annotate dwt/graphics/TextStyle.d @ 212:ab60f3309436
reverted the char[] to String and use the an alias.
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Mon, 05 May 2008 00:12:38 +0200 |
| parents | 97c2675aca38 |
| children | 36f5cb12e1a2 |
| rev | line source |
|---|---|
| 21 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2006 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwt.graphics.TextStyle; | |
| 14 | |
| 15 import dwt.DWT; | |
| 16 import dwt.graphics.Font; | |
| 17 import dwt.graphics.Color; | |
| 18 import dwt.graphics.GlyphMetrics; | |
| 19 | |
| 20 import tango.util.Convert; | |
|
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21 import dwt.dwthelper.utils; |
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22 |
| 21 | 23 /** |
| 24 * <code>TextStyle</code> defines a set of styles that can be applied | |
| 25 * to a range of text. | |
| 26 * <p> | |
| 27 * The hashCode() method in this class uses the values of the public | |
| 28 * fields to compute the hash value. When storing instances of the | |
| 29 * class in hashed collections, do not modify these fields after the | |
| 30 * object has been inserted. | |
| 31 * </p> | |
| 32 * <p> | |
| 33 * Application code does <em>not</em> need to explicitly release the | |
| 34 * resources managed by each instance when those instances are no longer | |
| 35 * required, and thus no <code>dispose()</code> method is provided. | |
| 36 * </p> | |
| 37 * | |
| 38 * @see TextLayout | |
| 39 * @see Font | |
| 40 * @see Color | |
| 41 * | |
| 42 * @since 3.0 | |
| 43 */ | |
| 44 public class TextStyle { | |
| 45 | |
| 46 /** | |
| 47 * the font of the style | |
| 48 */ | |
| 49 public Font font; | |
| 50 | |
| 51 /** | |
| 52 * the foreground of the style | |
| 53 */ | |
| 54 public Color foreground; | |
| 55 | |
| 56 /** | |
| 57 * the background of the style | |
| 58 */ | |
| 59 public Color background; | |
| 60 | |
| 61 /** | |
| 62 * the underline flag of the style | |
| 63 * | |
| 64 * @since 3.1 | |
| 65 */ | |
| 66 public bool underline; | |
| 67 | |
| 68 /** | |
| 69 * the strikeout flag of the style | |
| 70 * | |
| 71 * @since 3.1 | |
| 72 */ | |
| 73 public bool strikeout; | |
| 74 | |
| 75 /** | |
| 76 * the GlyphMetrics of the style | |
| 77 * | |
| 78 * @since 3.2 | |
| 79 */ | |
| 80 public GlyphMetrics metrics; | |
| 81 | |
| 82 /** | |
| 83 * the baseline rise of the style. | |
| 84 * | |
| 85 * @since 3.2 | |
| 86 */ | |
| 87 public int rise; | |
| 88 | |
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89 /++ |
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90 + DWT extension for clone implementation |
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91 +/ |
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92 protected this( TextStyle other ){ |
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93 font = other.font; |
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94 foreground = other.foreground; |
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95 background = other.background; |
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96 underline = other.underline; |
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97 strikeout = other.strikeout; |
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98 metrics = other.metrics; |
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99 rise = other.rise; |
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100 } |
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101 |
| 21 | 102 /** |
| 103 * Create a new text style with the specified font, foreground | |
| 104 * and background. | |
| 105 * | |
| 106 * @param font the font of the style, <code>null</code> if none | |
| 107 * @param foreground the foreground color of the style, <code>null</code> if none | |
| 108 * @param background the background color of the style, <code>null</code> if none | |
| 109 */ | |
| 110 public this (Font font, Color foreground, Color background) { | |
| 111 if (font !is null && font.isDisposed()) DWT.error (DWT.ERROR_INVALID_ARGUMENT); | |
| 112 if (foreground !is null && foreground.isDisposed()) DWT.error (DWT.ERROR_INVALID_ARGUMENT); | |
| 113 if (background !is null && background.isDisposed()) DWT.error (DWT.ERROR_INVALID_ARGUMENT); | |
| 114 this.font = font; | |
| 115 this.foreground = foreground; | |
| 116 this.background = background; | |
| 117 } | |
| 118 | |
| 119 /** | |
| 120 * Compares the argument to the receiver, and returns true | |
| 121 * if they represent the <em>same</em> object using a class | |
| 122 * specific comparison. | |
| 123 * | |
| 124 * @param object the object to compare with this object | |
| 125 * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise | |
| 126 * | |
| 127 * @see #hashCode() | |
| 128 */ | |
| 129 public override int opEquals(Object object) { | |
| 130 if (object is this) return true; | |
| 131 if (object is null) return false; | |
| 132 if (!(cast(TextStyle)object)) return false; | |
| 133 TextStyle style = cast(TextStyle)object; | |
| 134 if (foreground !is null) { | |
| 172 | 135 if ( foreground !is style.foreground ) return false; |
| 21 | 136 } else if (style.foreground !is null) return false; |
| 137 if (background !is null) { | |
| 172 | 138 if ( background !is style.background ) return false; |
| 21 | 139 } else if (style.background !is null) return false; |
| 140 if (font !is null) { | |
| 172 | 141 if (font !is style.font) return false; |
| 21 | 142 } else if (style.font !is null) return false; |
| 143 if (metrics !is null || style.metrics !is null) return false; | |
| 144 if (underline !is style.underline) return false; | |
| 145 if (strikeout !is style.strikeout) return false; | |
| 146 if (rise !is style.rise) return false; | |
| 147 return true; | |
| 148 } | |
| 149 | |
| 150 /** | |
| 151 * Returns an integer hash code for the receiver. Any two | |
| 152 * objects that return <code>true</code> when passed to | |
| 153 * <code>equals</code> must return the same value for this | |
| 154 * method. | |
| 155 * | |
| 156 * @return the receiver's hash | |
| 157 * | |
| 158 * @see #equals(Object) | |
| 159 */ | |
| 160 public override hash_t toHash() { | |
| 161 int hash = 0; | |
| 162 if (foreground !is null) hash ^= foreground.toHash(); | |
| 163 if (background !is null) hash ^= background.toHash(); | |
| 164 if (font !is null) hash ^= font.toHash(); | |
| 165 if (metrics !is null) hash ^= metrics.toHash(); | |
| 166 if (underline) hash ^= hash; | |
| 167 if (strikeout) hash ^= hash; | |
| 168 hash ^= rise; | |
| 169 return hash; | |
| 170 } | |
| 171 | |
| 172 /** | |
| 173 * Returns a string containing a concise, human-readable | |
| 174 * description of the receiver. | |
| 175 * | |
| 176 * @return a string representation of the <code>TextStyle</code> | |
| 177 */ | |
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ab60f3309436
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parents:
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178 override public String toString () { |
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parents:
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179 String buffer = "TextStyle {"; |
| 21 | 180 int startLength = buffer.length; |
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181 if (font !is null) { |
| 21 | 182 if (buffer.length > startLength) buffer ~= ", "; |
| 183 buffer ~= "font="; | |
| 184 buffer ~= font.toString; | |
| 185 } | |
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186 if (foreground !is null) { |
| 21 | 187 if (buffer.length > startLength) buffer ~= ", "; |
| 188 buffer ~= "foreground="; | |
| 189 buffer ~= foreground.toString; | |
| 190 } | |
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191 if (background !is null) { |
| 21 | 192 if (buffer.length > startLength) buffer ~= ", "; |
| 193 buffer ~= "background="; | |
| 194 buffer ~= background.toString; | |
| 195 } | |
| 196 if (underline) { | |
| 197 if (buffer.length > startLength) buffer ~= ", "; | |
| 198 buffer ~= "underlined"; | |
| 199 } | |
| 200 if (strikeout) { | |
| 201 if (buffer.length > startLength) buffer ~= ", "; | |
| 202 buffer ~= "striked out"; | |
| 203 } | |
| 172 | 204 if (rise !is 0) { |
| 21 | 205 if (buffer.length > startLength) buffer ~= ", "; |
| 206 buffer ~= "rise="; | |
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207 buffer ~= to!(String)(rise); |
| 21 | 208 } |
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209 if (metrics !is null) { |
| 21 | 210 if (buffer.length > startLength) buffer ~= ", "; |
| 211 buffer ~= "metrics="; | |
| 212 buffer ~= metrics.toString; | |
| 213 } | |
| 214 buffer ~= "}"; | |
| 215 return buffer; | |
| 216 } | |
| 217 | |
| 218 } |