Mercurial > projects > dwt-win
annotate dwt/custom/Bullet.d @ 246:fd9c62a2998e
Updater SWT 3.4M7 to 3.4
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Tue, 01 Jul 2008 10:15:59 +0200 |
| parents | ab60f3309436 |
| children | 349b8c12e243 |
| 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 /******************************************************************************* |
| 246 | 2 * Copyright (c) 2000, 2008 IBM Corporation and others. |
| 155 | 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) | |
| 246 | 36 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| 155 | 37 * |
| 38 * @since 3.2 | |
| 39 */ | |
| 40 public class Bullet { | |
| 246 | 41 /** |
| 42 * The bullet type. Possible values are: | |
| 43 * <ul> | |
| 44 * <li><code>ST.BULLET_DOT</code></li> | |
| 45 * <li><code>ST.BULLET_NUMBER</code></li> | |
| 46 * <li><code>ST.BULLET_LETTER_LOWER</code></li> | |
| 47 * <li><code>ST.BULLET_LETTER_UPPER</code></li> | |
| 48 * <li><code>ST.BULLET_TEXT</code></li> | |
| 49 * <li><code>ST.BULLET_CUSTOM</code></li> | |
| 50 * </ul> | |
| 51 */ | |
| 155 | 52 public int type; |
| 246 | 53 |
| 54 /** | |
| 55 * The bullet style. | |
| 56 */ | |
| 155 | 57 public StyleRange style; |
| 246 | 58 |
| 59 /** | |
| 60 * The bullet text. | |
| 61 */ | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
62 public String text; |
| 246 | 63 |
| 155 | 64 int[] linesIndices; |
| 65 int count; | |
| 66 | |
| 67 /** | |
| 246 | 68 * Create a new bullet with the specified style, and type <code>ST.BULLET_DOT</code>. |
| 155 | 69 * The style must have a glyph metrics set. |
| 70 * | |
| 71 * @param style the style | |
| 72 * | |
| 73 * @exception IllegalArgumentException <ul> | |
| 74 * <li>ERROR_NULL_ARGUMENT when the style or the glyph metrics are null</li> | |
| 75 * </ul> | |
| 76 */ | |
| 77 public this(StyleRange style) { | |
| 78 this(ST.BULLET_DOT, style); | |
| 79 } | |
| 80 /** | |
| 81 * Create a new bullet the specified style and type. | |
| 82 * The style must have a glyph metrics set. | |
| 83 * | |
| 246 | 84 * @param type the bullet type |
| 155 | 85 * @param style the style |
| 86 * | |
| 87 * @exception IllegalArgumentException <ul> | |
| 88 * <li>ERROR_NULL_ARGUMENT when the style or the glyph metrics are null</li> | |
| 89 * </ul> | |
| 90 */ | |
| 91 public this(int type, StyleRange style) { | |
| 92 if (style is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 93 if (style.metrics is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 94 this.type = type; | |
| 95 this.style = style; | |
| 96 } | |
| 97 void addIndices (int startLine, int lineCount) { | |
| 98 if (linesIndices is null) { | |
| 99 linesIndices = new int[lineCount]; | |
| 100 count = lineCount; | |
| 101 for (int i = 0; i < lineCount; i++) linesIndices[i] = startLine + i; | |
| 102 } else { | |
| 103 int modifyStart = 0; | |
| 104 while (modifyStart < count) { | |
| 105 if (startLine <= linesIndices[modifyStart]) break; | |
| 106 modifyStart++; | |
| 107 } | |
| 108 int modifyEnd = modifyStart; | |
| 109 while (modifyEnd < count) { | |
| 110 if (startLine + lineCount <= linesIndices[modifyEnd]) break; | |
| 111 modifyEnd++; | |
| 112 } | |
| 113 int newSize = modifyStart + lineCount + count - modifyEnd; | |
| 114 if (newSize > linesIndices.length) { | |
| 115 int[] newLinesIndices = new int[newSize]; | |
| 116 System.arraycopy(linesIndices, 0, newLinesIndices, 0, count); | |
| 117 linesIndices = newLinesIndices; | |
| 118 } | |
| 119 System.arraycopy(linesIndices, modifyEnd, linesIndices, modifyStart + lineCount, count - modifyEnd); | |
| 120 for (int i = 0; i < lineCount; i++) linesIndices[modifyStart + i] = startLine + i; | |
| 121 count = newSize; | |
| 122 } | |
| 123 } | |
| 124 int indexOf (int lineIndex) { | |
| 125 for (int i = 0; i < count; i++) { | |
| 126 if (linesIndices[i] is lineIndex) return i; | |
| 127 } | |
| 128 return -1; | |
| 129 } | |
| 130 public override hash_t toHash() { | |
| 131 return style.toHash() ^ type; | |
| 132 } | |
| 133 int[] removeIndices (int startLine, int replaceLineCount, int newLineCount, bool update) { | |
| 134 if (count is 0) return null; | |
| 135 if (startLine > linesIndices[count - 1]) return null; | |
| 136 int endLine = startLine + replaceLineCount; | |
| 137 int delta = newLineCount - replaceLineCount; | |
| 138 for (int i = 0; i < count; i++) { | |
| 139 int index = linesIndices[i]; | |
| 140 if (startLine <= index) { | |
| 141 int j = i; | |
| 142 while (j < count) { | |
| 143 if (linesIndices[j] >= endLine) break; | |
| 144 j++; | |
| 145 } | |
| 146 if (update) { | |
| 147 for (int k = j; k < count; k++) linesIndices[k] += delta; | |
| 148 } | |
| 149 int[] redrawLines = new int[count - j]; | |
| 150 System.arraycopy(linesIndices, j, redrawLines, 0, count - j); | |
| 151 System.arraycopy(linesIndices, j, linesIndices, i, count - j); | |
| 152 count -= (j - i); | |
| 153 return redrawLines; | |
| 154 } | |
| 155 } | |
| 156 for (int i = 0; i < count; i++) linesIndices[i] += delta; | |
| 157 return null; | |
| 158 } | |
| 159 int size() { | |
| 160 return count; | |
| 161 } | |
| 162 } |