Mercurial > projects > dwt-win
annotate dwt/graphics/TextStyle.d @ 171:487072cb0473
fix some != to correct !is
| author | Thomas Graber <d4rkdragon@gmail.com> |
|---|---|
| date | Sat, 23 Feb 2008 18:12:20 +0100 |
| parents | 9a64a7781bab |
| children | 0459ffa88f7d |
| 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; | |
| 21 /** | |
| 22 * <code>TextStyle</code> defines a set of styles that can be applied | |
| 23 * to a range of text. | |
| 24 * <p> | |
| 25 * The hashCode() method in this class uses the values of the public | |
| 26 * fields to compute the hash value. When storing instances of the | |
| 27 * class in hashed collections, do not modify these fields after the | |
| 28 * object has been inserted. | |
| 29 * </p> | |
| 30 * <p> | |
| 31 * Application code does <em>not</em> need to explicitly release the | |
| 32 * resources managed by each instance when those instances are no longer | |
| 33 * required, and thus no <code>dispose()</code> method is provided. | |
| 34 * </p> | |
| 35 * | |
| 36 * @see TextLayout | |
| 37 * @see Font | |
| 38 * @see Color | |
| 39 * | |
| 40 * @since 3.0 | |
| 41 */ | |
| 42 public class TextStyle { | |
| 43 | |
| 44 /** | |
| 45 * the font of the style | |
| 46 */ | |
| 47 public Font font; | |
| 48 | |
| 49 /** | |
| 50 * the foreground of the style | |
| 51 */ | |
| 52 public Color foreground; | |
| 53 | |
| 54 /** | |
| 55 * the background of the style | |
| 56 */ | |
| 57 public Color background; | |
| 58 | |
| 59 /** | |
| 60 * the underline flag of the style | |
| 61 * | |
| 62 * @since 3.1 | |
| 63 */ | |
| 64 public bool underline; | |
| 65 | |
| 66 /** | |
| 67 * the strikeout flag of the style | |
| 68 * | |
| 69 * @since 3.1 | |
| 70 */ | |
| 71 public bool strikeout; | |
| 72 | |
| 73 /** | |
| 74 * the GlyphMetrics of the style | |
| 75 * | |
| 76 * @since 3.2 | |
| 77 */ | |
| 78 public GlyphMetrics metrics; | |
| 79 | |
| 80 /** | |
| 81 * the baseline rise of the style. | |
| 82 * | |
| 83 * @since 3.2 | |
| 84 */ | |
| 85 public int rise; | |
| 86 | |
| 87 /** | |
| 88 * Create a new text style with the specified font, foreground | |
| 89 * and background. | |
| 90 * | |
| 91 * @param font the font of the style, <code>null</code> if none | |
| 92 * @param foreground the foreground color of the style, <code>null</code> if none | |
| 93 * @param background the background color of the style, <code>null</code> if none | |
| 94 */ | |
| 95 public this (Font font, Color foreground, Color background) { | |
| 96 if (font !is null && font.isDisposed()) DWT.error (DWT.ERROR_INVALID_ARGUMENT); | |
| 97 if (foreground !is null && foreground.isDisposed()) DWT.error (DWT.ERROR_INVALID_ARGUMENT); | |
| 98 if (background !is null && background.isDisposed()) DWT.error (DWT.ERROR_INVALID_ARGUMENT); | |
| 99 this.font = font; | |
| 100 this.foreground = foreground; | |
| 101 this.background = background; | |
| 102 } | |
| 103 | |
| 104 /** | |
| 105 * Compares the argument to the receiver, and returns true | |
| 106 * if they represent the <em>same</em> object using a class | |
| 107 * specific comparison. | |
| 108 * | |
| 109 * @param object the object to compare with this object | |
| 110 * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise | |
| 111 * | |
| 112 * @see #hashCode() | |
| 113 */ | |
| 114 public override int opEquals(Object object) { | |
| 115 if (object is this) return true; | |
| 116 if (object is null) return false; | |
| 117 if (!(cast(TextStyle)object)) return false; | |
| 118 TextStyle style = cast(TextStyle)object; | |
| 119 if (foreground !is null) { | |
| 120 if ( foreground != style.foreground ) return false; | |
| 121 } else if (style.foreground !is null) return false; | |
| 122 if (background !is null) { | |
| 123 if ( background != style.background ) return false; | |
| 124 } else if (style.background !is null) return false; | |
| 125 if (font !is null) { | |
| 126 if (font != style.font) return false; | |
| 127 } else if (style.font !is null) return false; | |
| 128 if (metrics !is null || style.metrics !is null) return false; | |
| 129 if (underline !is style.underline) return false; | |
| 130 if (strikeout !is style.strikeout) return false; | |
| 131 if (rise !is style.rise) return false; | |
| 132 return true; | |
| 133 } | |
| 134 | |
| 135 /** | |
| 136 * Returns an integer hash code for the receiver. Any two | |
| 137 * objects that return <code>true</code> when passed to | |
| 138 * <code>equals</code> must return the same value for this | |
| 139 * method. | |
| 140 * | |
| 141 * @return the receiver's hash | |
| 142 * | |
| 143 * @see #equals(Object) | |
| 144 */ | |
| 145 public override hash_t toHash() { | |
| 146 int hash = 0; | |
| 147 if (foreground !is null) hash ^= foreground.toHash(); | |
| 148 if (background !is null) hash ^= background.toHash(); | |
| 149 if (font !is null) hash ^= font.toHash(); | |
| 150 if (metrics !is null) hash ^= metrics.toHash(); | |
| 151 if (underline) hash ^= hash; | |
| 152 if (strikeout) hash ^= hash; | |
| 153 hash ^= rise; | |
| 154 return hash; | |
| 155 } | |
| 156 | |
| 157 /** | |
| 158 * Returns a string containing a concise, human-readable | |
| 159 * description of the receiver. | |
| 160 * | |
| 161 * @return a string representation of the <code>TextStyle</code> | |
| 162 */ | |
|
48
9a64a7781bab
Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
21
diff
changeset
|
163 override public char[] toString () { |
| 21 | 164 char[] buffer = "TextStyle {"; |
| 165 int startLength = buffer.length; | |
|
171
487072cb0473
fix some != to correct !is
Thomas Graber <d4rkdragon@gmail.com>
parents:
48
diff
changeset
|
166 if (font !is null) { |
| 21 | 167 if (buffer.length > startLength) buffer ~= ", "; |
| 168 buffer ~= "font="; | |
| 169 buffer ~= font.toString; | |
| 170 } | |
|
171
487072cb0473
fix some != to correct !is
Thomas Graber <d4rkdragon@gmail.com>
parents:
48
diff
changeset
|
171 if (foreground !is null) { |
| 21 | 172 if (buffer.length > startLength) buffer ~= ", "; |
| 173 buffer ~= "foreground="; | |
| 174 buffer ~= foreground.toString; | |
| 175 } | |
|
171
487072cb0473
fix some != to correct !is
Thomas Graber <d4rkdragon@gmail.com>
parents:
48
diff
changeset
|
176 if (background !is null) { |
| 21 | 177 if (buffer.length > startLength) buffer ~= ", "; |
| 178 buffer ~= "background="; | |
| 179 buffer ~= background.toString; | |
| 180 } | |
| 181 if (underline) { | |
| 182 if (buffer.length > startLength) buffer ~= ", "; | |
| 183 buffer ~= "underlined"; | |
| 184 } | |
| 185 if (strikeout) { | |
| 186 if (buffer.length > startLength) buffer ~= ", "; | |
| 187 buffer ~= "striked out"; | |
| 188 } | |
| 189 if (rise != 0) { | |
| 190 if (buffer.length > startLength) buffer ~= ", "; | |
| 191 buffer ~= "rise="; | |
| 192 buffer ~= to!(char[])(rise); | |
| 193 } | |
|
171
487072cb0473
fix some != to correct !is
Thomas Graber <d4rkdragon@gmail.com>
parents:
48
diff
changeset
|
194 if (metrics !is null) { |
| 21 | 195 if (buffer.length > startLength) buffer ~= ", "; |
| 196 buffer ~= "metrics="; | |
| 197 buffer ~= metrics.toString; | |
| 198 } | |
| 199 buffer ~= "}"; | |
| 200 return buffer; | |
| 201 } | |
| 202 | |
| 203 } |