Mercurial > projects > dwt-win
annotate dwt/custom/StyleRange.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 |
|---|---|
| 155 | 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.custom.StyleRange; | |
| 14 | |
| 15 | |
| 16 import dwt.DWT; | |
| 17 import dwt.graphics.Color; | |
| 18 import dwt.graphics.TextStyle; | |
| 19 import dwt.internal.CloneableCompatibility; | |
| 20 import dwt.custom.StyleRange; | |
| 21 import dwt.custom.TextChangedEvent; | |
| 22 import dwt.custom.TextChangingEvent; | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
173
diff
changeset
|
23 import dwt.dwthelper.utils; |
| 155 | 24 |
| 25 static import tango.text.Text; | |
| 26 alias tango.text.Text.Text!(char) StringBuffer; | |
| 27 | |
| 28 public class StyleRange : TextStyle, CloneableCompatibility { | |
| 29 | |
| 30 /** | |
| 31 * the start offset of the range, zero-based from the document start | |
| 32 */ | |
| 33 public int start; | |
| 34 | |
| 35 /** | |
| 36 * the length of the range | |
| 37 */ | |
| 38 public int length; | |
| 39 | |
| 40 /** | |
| 41 * the font style of the range. It may be a combination of | |
| 42 * DWT.NORMAL, DWT.ITALIC or DWT.BOLD | |
| 43 * | |
| 44 * Note: the font style is not used if the <code>font</code> attribute | |
| 45 * is set | |
| 46 */ | |
| 47 public int fontStyle = DWT.NORMAL; | |
| 48 | |
|
173
97c2675aca38
Fix: missing styles in StyleRange
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
49 /++ |
|
97c2675aca38
Fix: missing styles in StyleRange
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
50 + DWT extension for clone implementation |
|
97c2675aca38
Fix: missing styles in StyleRange
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
51 +/ |
|
97c2675aca38
Fix: missing styles in StyleRange
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
52 protected this( StyleRange other ){ |
|
97c2675aca38
Fix: missing styles in StyleRange
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
53 super( other ); |
|
97c2675aca38
Fix: missing styles in StyleRange
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
54 start = other.start; |
|
97c2675aca38
Fix: missing styles in StyleRange
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
55 length = other.length; |
|
97c2675aca38
Fix: missing styles in StyleRange
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
56 fontStyle = other.fontStyle; |
|
97c2675aca38
Fix: missing styles in StyleRange
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
57 } |
|
97c2675aca38
Fix: missing styles in StyleRange
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
58 |
| 155 | 59 /** |
| 60 * Create a new style range with no styles | |
| 61 * | |
| 62 * @since 3.2 | |
| 63 */ | |
| 64 public this() { | |
| 65 super(null, null, null); | |
| 66 } | |
| 67 | |
| 68 /** | |
| 69 * Create a new style range. | |
| 70 * | |
| 71 * @param start start offset of the style | |
| 72 * @param length length of the style | |
| 73 * @param foreground foreground color of the style, null if none | |
| 74 * @param background background color of the style, null if none | |
| 75 */ | |
| 76 public this(int start, int length, Color foreground, Color background) { | |
| 77 super(null, foreground, background); | |
| 78 this.start = start; | |
| 79 this.length = length; | |
| 80 } | |
| 81 | |
| 82 /** | |
| 83 * Create a new style range. | |
| 84 * | |
| 85 * @param start start offset of the style | |
| 86 * @param length length of the style | |
| 87 * @param foreground foreground color of the style, null if none | |
| 88 * @param background background color of the style, null if none | |
| 89 * @param fontStyle font style of the style, may be DWT.NORMAL, DWT.ITALIC or DWT.BOLD | |
| 90 */ | |
| 91 public this(int start, int length, Color foreground, Color background, int fontStyle) { | |
| 92 this(start, length, foreground, background); | |
| 93 this.fontStyle = fontStyle; | |
| 94 } | |
| 95 | |
| 96 /** | |
| 97 * Compares the argument to the receiver, and returns true | |
| 98 * if they represent the <em>same</em> object using a class | |
| 99 * specific comparison. | |
| 100 * | |
| 101 * @param object the object to compare with this object | |
| 102 * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise | |
| 103 * | |
| 104 * @see #hashCode() | |
| 105 */ | |
| 106 public override int opEquals(Object object) { | |
| 107 if (object is this) return true; | |
| 108 if (auto style = cast(StyleRange) object ) { | |
| 109 if (start !is style.start) return false; | |
| 110 if (length !is style.length) return false; | |
| 111 return similarTo(style); | |
| 112 } | |
| 113 return false; | |
| 114 } | |
| 115 | |
| 116 /** | |
| 117 * Returns an integer hash code for the receiver. Any two | |
| 118 * objects that return <code>true</code> when passed to | |
| 119 * <code>equals</code> must return the same value for this | |
| 120 * method. | |
| 121 * | |
| 122 * @return the receiver's hash | |
| 123 * | |
| 124 * @see #equals(Object) | |
| 125 */ | |
| 126 public override hash_t toHash() { | |
| 127 return super.toHash() ^ fontStyle; | |
| 128 } | |
| 129 bool isVariableHeight() { | |
| 130 return font !is null || metrics !is null || rise !is 0; | |
| 131 } | |
| 132 /** | |
| 133 * Returns whether or not the receiver is unstyled (i.e., does not have any | |
| 134 * style attributes specified). | |
| 135 * | |
| 136 * @return true if the receiver is unstyled, false otherwise. | |
| 137 */ | |
| 138 public bool isUnstyled() { | |
| 139 if (font !is null) return false; | |
| 140 if (rise !is 0) return false; | |
| 141 if (metrics !is null) return false; | |
| 142 if (foreground !is null) return false; | |
| 143 if (background !is null) return false; | |
| 144 if (fontStyle !is DWT.NORMAL) return false; | |
| 145 if (underline) return false; | |
| 146 if (strikeout) return false; | |
| 147 return true; | |
| 148 } | |
| 149 | |
| 150 /** | |
| 151 * Compares the specified object to this StyleRange and answer if the two | |
| 152 * are similar. The object must be an instance of StyleRange and have the | |
| 153 * same field values for except for start and length. | |
| 154 * | |
| 155 * @param style the object to compare with this object | |
| 156 * @return true if the objects are similar, false otherwise | |
| 157 */ | |
| 158 public bool similarTo(StyleRange style) { | |
| 159 if (!super.opEquals(style)) return false; | |
| 160 if (fontStyle !is style.fontStyle) return false; | |
| 161 return true; | |
| 162 } | |
| 163 | |
| 164 /** | |
| 165 * Returns a new StyleRange with the same values as this StyleRange. | |
| 166 * | |
| 167 * @return a shallow copy of this StyleRange | |
| 168 */ | |
| 169 public /+override+/ Object clone() { | |
|
173
97c2675aca38
Fix: missing styles in StyleRange
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
170 return new StyleRange( this ); |
| 155 | 171 } |
| 172 | |
| 173 /** | |
| 174 * Returns a string containing a concise, human-readable | |
| 175 * description of the receiver. | |
| 176 * | |
| 177 * @return a string representation of the StyleRange | |
| 178 */ | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
173
diff
changeset
|
179 public override String toString() { |
| 155 | 180 StringBuffer buffer = new StringBuffer(); |
| 181 buffer.append("StyleRange {"); | |
| 182 buffer.append(start); | |
| 183 buffer.append(", "); | |
| 184 buffer.append(length); | |
| 185 buffer.append(", fontStyle="); | |
| 186 switch (fontStyle) { | |
| 187 case DWT.BOLD: | |
| 188 buffer.append("bold"); | |
| 189 break; | |
| 190 case DWT.ITALIC: | |
| 191 buffer.append("italic"); | |
| 192 break; | |
| 193 case DWT.BOLD | DWT.ITALIC: | |
| 194 buffer.append("bold-italic"); | |
| 195 break; | |
| 196 default: | |
| 197 buffer.append("normal"); | |
| 198 } | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
173
diff
changeset
|
199 String str = super.toString(); |
| 155 | 200 int index = tango.text.Util.locate( str, '{'); |
| 201 if( index is str.length ) index = -1; | |
| 202 str = str[ index + 1 .. $ ]; | |
| 203 if (str.length > 1) buffer.append(", "); | |
| 204 buffer.append(str); | |
| 205 return buffer.toString(); | |
| 206 } | |
| 207 } |