Mercurial > projects > dwt-linux
annotate dwt/custom/StyleRange.d @ 238:380bad9f6852
reverted char[] to String
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Mon, 05 May 2008 00:42:55 +0200 |
| parents | cd8dc3f19679 |
| children | ce446666f5a2 |
| rev | line source |
|---|---|
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1 /******************************************************************************* |
| 95 | 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 | |
| 108 | 10 * Port to the D programming language: |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 95 | 12 *******************************************************************************/ |
| 13 module dwt.custom.StyleRange; | |
| 14 | |
| 238 | 15 import dwt.dwthelper.utils; |
| 16 | |
| 95 | 17 |
| 18 import dwt.DWT; | |
| 19 import dwt.graphics.Color; | |
| 20 import dwt.graphics.TextStyle; | |
| 21 import dwt.internal.CloneableCompatibility; | |
|
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22 import dwt.custom.StyleRange; |
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23 import dwt.custom.TextChangedEvent; |
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24 import dwt.custom.TextChangingEvent; |
| 95 | 25 |
| 26 static import tango.text.Text; | |
| 27 alias tango.text.Text.Text!(char) StringBuffer; | |
| 28 | |
| 29 public class StyleRange : TextStyle, CloneableCompatibility { | |
| 30 | |
| 31 /** | |
| 32 * the start offset of the range, zero-based from the document start | |
| 33 */ | |
| 34 public int start; | |
| 35 | |
| 36 /** | |
| 37 * the length of the range | |
| 38 */ | |
| 39 public int length; | |
| 40 | |
| 41 /** | |
| 42 * the font style of the range. It may be a combination of | |
| 43 * DWT.NORMAL, DWT.ITALIC or DWT.BOLD | |
| 44 * | |
| 45 * Note: the font style is not used if the <code>font</code> attribute | |
| 46 * is set | |
| 47 */ | |
| 48 public int fontStyle = DWT.NORMAL; | |
| 49 | |
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50 /++ |
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51 + DWT extension for clone implementation |
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52 +/ |
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53 protected this( StyleRange other ){ |
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54 super( other ); |
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55 start = other.start; |
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56 length = other.length; |
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57 fontStyle = other.fontStyle; |
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58 } |
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59 |
| 95 | 60 /** |
| 61 * Create a new style range with no styles | |
| 62 * | |
| 63 * @since 3.2 | |
| 64 */ | |
| 65 public this() { | |
| 66 super(null, null, null); | |
| 67 } | |
| 68 | |
| 69 /** | |
| 70 * Create a new style range. | |
| 71 * | |
| 72 * @param start start offset of the style | |
| 73 * @param length length of the style | |
| 74 * @param foreground foreground color of the style, null if none | |
| 75 * @param background background color of the style, null if none | |
| 76 */ | |
| 77 public this(int start, int length, Color foreground, Color background) { | |
| 78 super(null, foreground, background); | |
| 79 this.start = start; | |
| 80 this.length = length; | |
| 81 } | |
| 82 | |
| 83 /** | |
| 84 * Create a new style range. | |
| 85 * | |
| 86 * @param start start offset of the style | |
| 87 * @param length length of the style | |
| 88 * @param foreground foreground color of the style, null if none | |
| 89 * @param background background color of the style, null if none | |
| 90 * @param fontStyle font style of the style, may be DWT.NORMAL, DWT.ITALIC or DWT.BOLD | |
| 91 */ | |
| 92 public this(int start, int length, Color foreground, Color background, int fontStyle) { | |
| 93 this(start, length, foreground, background); | |
| 94 this.fontStyle = fontStyle; | |
| 95 } | |
| 96 | |
| 97 /** | |
| 98 * Compares the argument to the receiver, and returns true | |
| 99 * if they represent the <em>same</em> object using a class | |
| 100 * specific comparison. | |
| 101 * | |
| 102 * @param object the object to compare with this object | |
| 103 * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise | |
| 104 * | |
| 105 * @see #hashCode() | |
| 106 */ | |
| 107 public override int opEquals(Object object) { | |
| 108 if (object is this) return true; | |
| 109 if (auto style = cast(StyleRange) object ) { | |
| 110 if (start !is style.start) return false; | |
| 111 if (length !is style.length) return false; | |
| 112 return similarTo(style); | |
| 113 } | |
| 114 return false; | |
| 115 } | |
| 116 | |
| 117 /** | |
| 118 * Returns an integer hash code for the receiver. Any two | |
| 119 * objects that return <code>true</code> when passed to | |
| 120 * <code>equals</code> must return the same value for this | |
| 121 * method. | |
| 122 * | |
| 123 * @return the receiver's hash | |
| 124 * | |
| 125 * @see #equals(Object) | |
| 126 */ | |
| 127 public override hash_t toHash() { | |
| 128 return super.toHash() ^ fontStyle; | |
| 129 } | |
| 130 bool isVariableHeight() { | |
| 131 return font !is null || metrics !is null || rise !is 0; | |
| 132 } | |
| 133 /** | |
| 134 * Returns whether or not the receiver is unstyled (i.e., does not have any | |
| 135 * style attributes specified). | |
| 136 * | |
| 137 * @return true if the receiver is unstyled, false otherwise. | |
| 138 */ | |
| 139 public bool isUnstyled() { | |
| 140 if (font !is null) return false; | |
| 141 if (rise !is 0) return false; | |
| 142 if (metrics !is null) return false; | |
| 143 if (foreground !is null) return false; | |
| 144 if (background !is null) return false; | |
| 145 if (fontStyle !is DWT.NORMAL) return false; | |
| 146 if (underline) return false; | |
| 147 if (strikeout) return false; | |
| 148 return true; | |
| 149 } | |
| 150 | |
| 151 /** | |
| 152 * Compares the specified object to this StyleRange and answer if the two | |
| 153 * are similar. The object must be an instance of StyleRange and have the | |
| 154 * same field values for except for start and length. | |
| 155 * | |
| 156 * @param style the object to compare with this object | |
| 157 * @return true if the objects are similar, false otherwise | |
| 158 */ | |
| 159 public bool similarTo(StyleRange style) { | |
| 160 if (!super.opEquals(style)) return false; | |
| 161 if (fontStyle !is style.fontStyle) return false; | |
| 162 return true; | |
| 163 } | |
| 164 | |
| 165 /** | |
| 166 * Returns a new StyleRange with the same values as this StyleRange. | |
| 167 * | |
| 168 * @return a shallow copy of this StyleRange | |
| 169 */ | |
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170 public /+override+/ Object clone() { |
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171 return new StyleRange( this ); |
| 95 | 172 } |
| 173 | |
| 174 /** | |
| 175 * Returns a string containing a concise, human-readable | |
| 176 * description of the receiver. | |
| 177 * | |
| 178 * @return a string representation of the StyleRange | |
| 179 */ | |
| 238 | 180 public override String toString() { |
| 95 | 181 StringBuffer buffer = new StringBuffer(); |
| 182 buffer.append("StyleRange {"); | |
| 183 buffer.append(start); | |
| 184 buffer.append(", "); | |
| 185 buffer.append(length); | |
| 186 buffer.append(", fontStyle="); | |
| 187 switch (fontStyle) { | |
| 188 case DWT.BOLD: | |
| 189 buffer.append("bold"); | |
| 190 break; | |
| 191 case DWT.ITALIC: | |
| 192 buffer.append("italic"); | |
| 193 break; | |
| 194 case DWT.BOLD | DWT.ITALIC: | |
| 195 buffer.append("bold-italic"); | |
| 196 break; | |
| 197 default: | |
| 198 buffer.append("normal"); | |
| 199 } | |
| 238 | 200 String str = super.toString(); |
| 95 | 201 int index = tango.text.Util.locate( str, '{'); |
| 202 if( index is str.length ) index = -1; | |
| 203 str = str[ index + 1 .. $ ]; | |
| 204 if (str.length > 1) buffer.append(", "); | |
| 205 buffer.append(str); | |
| 206 return buffer.toString(); | |
| 207 } | |
| 208 } |