Mercurial > projects > dwt-win
annotate dwt/custom/Bullet.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 | a5afe31f5cdd |
| children | fd9c62a2998e |
| rev | line source |
|---|---|
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
1 /******************************************************************************* |
| 155 | 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.Bullet; | |
| 14 | |
| 15 import dwt.DWT; | |
| 16 import dwt.custom.StyleRange; | |
| 17 import dwt.custom.ST; | |
| 18 import dwt.dwthelper.System; | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
19 import dwt.dwthelper.utils; |
| 155 | 20 |
| 21 /** | |
| 22 * Instances of this class represent bullets in the <code>StyledText</code>. | |
| 23 * <p> | |
| 24 * The hashCode() method in this class uses the values of the public | |
| 25 * fields to compute the hash value. When storing instances of the | |
| 26 * class in hashed collections, do not modify these fields after the | |
| 27 * object has been inserted. | |
| 28 * </p> | |
| 29 * <p> | |
| 30 * Application code does <em>not</em> need to explicitly release the | |
| 31 * resources managed by each instance when those instances are no longer | |
| 32 * required, and thus no <code>dispose()</code> method is provided. | |
| 33 * </p> | |
| 34 * | |
| 35 * @see StyledText#setLineBullet(int, int, Bullet) | |
| 36 * | |
| 37 * @since 3.2 | |
| 38 */ | |
| 39 public class Bullet { | |
| 40 public int type; | |
| 41 public StyleRange style; | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
42 public String text; |
| 155 | 43 int[] linesIndices; |
| 44 int count; | |
| 45 | |
| 46 /** | |
| 47 * Create a new bullet the specified style, the type is set to ST.BULLET_DOT. | |
| 48 * The style must have a glyph metrics set. | |
| 49 * | |
| 50 * @param style the style | |
| 51 * | |
| 52 * @exception IllegalArgumentException <ul> | |
| 53 * <li>ERROR_NULL_ARGUMENT when the style or the glyph metrics are null</li> | |
| 54 * </ul> | |
| 55 */ | |
| 56 public this(StyleRange style) { | |
| 57 this(ST.BULLET_DOT, style); | |
| 58 } | |
| 59 /** | |
| 60 * Create a new bullet the specified style and type. | |
| 61 * The style must have a glyph metrics set. | |
| 62 * | |
| 63 * @param style the style | |
| 64 * | |
| 65 * @exception IllegalArgumentException <ul> | |
| 66 * <li>ERROR_NULL_ARGUMENT when the style or the glyph metrics are null</li> | |
| 67 * </ul> | |
| 68 */ | |
| 69 public this(int type, StyleRange style) { | |
| 70 if (style is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 71 if (style.metrics is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 72 this.type = type; | |
| 73 this.style = style; | |
| 74 } | |
| 75 void addIndices (int startLine, int lineCount) { | |
| 76 if (linesIndices is null) { | |
| 77 linesIndices = new int[lineCount]; | |
| 78 count = lineCount; | |
| 79 for (int i = 0; i < lineCount; i++) linesIndices[i] = startLine + i; | |
| 80 } else { | |
| 81 int modifyStart = 0; | |
| 82 while (modifyStart < count) { | |
| 83 if (startLine <= linesIndices[modifyStart]) break; | |
| 84 modifyStart++; | |
| 85 } | |
| 86 int modifyEnd = modifyStart; | |
| 87 while (modifyEnd < count) { | |
| 88 if (startLine + lineCount <= linesIndices[modifyEnd]) break; | |
| 89 modifyEnd++; | |
| 90 } | |
| 91 int newSize = modifyStart + lineCount + count - modifyEnd; | |
| 92 if (newSize > linesIndices.length) { | |
| 93 int[] newLinesIndices = new int[newSize]; | |
| 94 System.arraycopy(linesIndices, 0, newLinesIndices, 0, count); | |
| 95 linesIndices = newLinesIndices; | |
| 96 } | |
| 97 System.arraycopy(linesIndices, modifyEnd, linesIndices, modifyStart + lineCount, count - modifyEnd); | |
| 98 for (int i = 0; i < lineCount; i++) linesIndices[modifyStart + i] = startLine + i; | |
| 99 count = newSize; | |
| 100 } | |
| 101 } | |
| 102 int indexOf (int lineIndex) { | |
| 103 for (int i = 0; i < count; i++) { | |
| 104 if (linesIndices[i] is lineIndex) return i; | |
| 105 } | |
| 106 return -1; | |
| 107 } | |
| 108 public override hash_t toHash() { | |
| 109 return style.toHash() ^ type; | |
| 110 } | |
| 111 int[] removeIndices (int startLine, int replaceLineCount, int newLineCount, bool update) { | |
| 112 if (count is 0) return null; | |
| 113 if (startLine > linesIndices[count - 1]) return null; | |
| 114 int endLine = startLine + replaceLineCount; | |
| 115 int delta = newLineCount - replaceLineCount; | |
| 116 for (int i = 0; i < count; i++) { | |
| 117 int index = linesIndices[i]; | |
| 118 if (startLine <= index) { | |
| 119 int j = i; | |
| 120 while (j < count) { | |
| 121 if (linesIndices[j] >= endLine) break; | |
| 122 j++; | |
| 123 } | |
| 124 if (update) { | |
| 125 for (int k = j; k < count; k++) linesIndices[k] += delta; | |
| 126 } | |
| 127 int[] redrawLines = new int[count - j]; | |
| 128 System.arraycopy(linesIndices, j, redrawLines, 0, count - j); | |
| 129 System.arraycopy(linesIndices, j, linesIndices, i, count - j); | |
| 130 count -= (j - i); | |
| 131 return redrawLines; | |
| 132 } | |
| 133 } | |
| 134 for (int i = 0; i < count; i++) linesIndices[i] += delta; | |
| 135 return null; | |
| 136 } | |
| 137 int size() { | |
| 138 return count; | |
| 139 } | |
| 140 } |