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annotate dwt/custom/Bullet.d @ 259:c0d810de7093

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Update SWT 3.4M7 to 3.4
author Frank Benoit <benoit@tionex.de>
date Sun, 29 Jun 2008 14:33:38 +0200
parents 380bad9f6852
children
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2008 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module dwt.custom.Bullet;
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14
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15 import dwt.dwthelper.utils;
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16
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17 import dwt.DWT;
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18 import dwt.custom.StyleRange;
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19 import dwt.custom.ST;
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20 import dwt.dwthelper.System;
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21
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22 /**
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23 * Instances of this class represent bullets in the <code>StyledText</code>.
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24 * <p>
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25 * The hashCode() method in this class uses the values of the public
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26 * fields to compute the hash value. When storing instances of the
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27 * class in hashed collections, do not modify these fields after the
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28 * object has been inserted.
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29 * </p>
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30 * <p>
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31 * Application code does <em>not</em> need to explicitly release the
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32 * resources managed by each instance when those instances are no longer
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33 * required, and thus no <code>dispose()</code> method is provided.
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34 * </p>
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35 *
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36 * @see StyledText#setLineBullet(int, int, Bullet)
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37 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
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38 *
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39 * @since 3.2
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40 */
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41 public class Bullet {
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42 /**
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43 * The bullet type. Possible values are:
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44 * <ul>
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45 * <li><code>ST.BULLET_DOT</code></li>
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46 * <li><code>ST.BULLET_NUMBER</code></li>
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47 * <li><code>ST.BULLET_LETTER_LOWER</code></li>
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48 * <li><code>ST.BULLET_LETTER_UPPER</code></li>
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49 * <li><code>ST.BULLET_TEXT</code></li>
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50 * <li><code>ST.BULLET_CUSTOM</code></li>
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51 * </ul>
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52 */
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53 public int type;
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54
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55 /**
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56 * The bullet style.
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57 */
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58 public StyleRange style;
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59
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60 /**
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61 * The bullet text.
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62 */
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63 public String text;
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64
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65 int[] linesIndices;
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66 int count;
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67
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68 /**
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69 * Create a new bullet with the specified style, and type <code>ST.BULLET_DOT</code>.
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70 * The style must have a glyph metrics set.
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71 *
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72 * @param style the style
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73 *
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74 * @exception IllegalArgumentException <ul>
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75 * <li>ERROR_NULL_ARGUMENT when the style or the glyph metrics are null</li>
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76 * </ul>
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77 */
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78 public this(StyleRange style) {
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79 this(ST.BULLET_DOT, style);
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80 }
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81 /**
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82 * Create a new bullet the specified style and type.
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83 * The style must have a glyph metrics set.
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84 *
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85 * @param type the bullet type
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86 * @param style the style
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87 *
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88 * @exception IllegalArgumentException <ul>
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89 * <li>ERROR_NULL_ARGUMENT when the style or the glyph metrics are null</li>
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90 * </ul>
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91 */
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92 public this(int type, StyleRange style) {
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93 if (style is null) DWT.error(DWT.ERROR_NULL_ARGUMENT);
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94 if (style.metrics is null) DWT.error(DWT.ERROR_NULL_ARGUMENT);
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95 this.type = type;
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96 this.style = style;
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97 }
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98 void addIndices (int startLine, int lineCount) {
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99 if (linesIndices is null) {
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100 linesIndices = new int[lineCount];
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101 count = lineCount;
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102 for (int i = 0; i < lineCount; i++) linesIndices[i] = startLine + i;
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103 } else {
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104 int modifyStart = 0;
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105 while (modifyStart < count) {
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106 if (startLine <= linesIndices[modifyStart]) break;
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107 modifyStart++;
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108 }
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109 int modifyEnd = modifyStart;
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110 while (modifyEnd < count) {
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111 if (startLine + lineCount <= linesIndices[modifyEnd]) break;
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112 modifyEnd++;
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113 }
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114 int newSize = modifyStart + lineCount + count - modifyEnd;
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115 if (newSize > linesIndices.length) {
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116 int[] newLinesIndices = new int[newSize];
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117 System.arraycopy(linesIndices, 0, newLinesIndices, 0, count);
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diff changeset
118 linesIndices = newLinesIndices;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
119 }
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
120 System.arraycopy(linesIndices, modifyEnd, linesIndices, modifyStart + lineCount, count - modifyEnd);
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
121 for (int i = 0; i < lineCount; i++) linesIndices[modifyStart + i] = startLine + i;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
122 count = newSize;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
123 }
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
124 }
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
125 int indexOf (int lineIndex) {
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
126 for (int i = 0; i < count; i++) {
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
127 if (linesIndices[i] is lineIndex) return i;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
128 }
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
129 return -1;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
130 }
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
131 public override hash_t toHash() {
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
132 return style.toHash() ^ type;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
133 }
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
134 int[] removeIndices (int startLine, int replaceLineCount, int newLineCount, bool update) {
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
135 if (count is 0) return null;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
136 if (startLine > linesIndices[count - 1]) return null;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
137 int endLine = startLine + replaceLineCount;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
138 int delta = newLineCount - replaceLineCount;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
139 for (int i = 0; i < count; i++) {
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
140 int index = linesIndices[i];
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
141 if (startLine <= index) {
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
142 int j = i;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
143 while (j < count) {
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
144 if (linesIndices[j] >= endLine) break;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
145 j++;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
146 }
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
147 if (update) {
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
148 for (int k = j; k < count; k++) linesIndices[k] += delta;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
149 }
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
150 int[] redrawLines = new int[count - j];
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
151 System.arraycopy(linesIndices, j, redrawLines, 0, count - j);
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
152 System.arraycopy(linesIndices, j, linesIndices, i, count - j);
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
153 count -= (j - i);
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
154 return redrawLines;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
155 }
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
156 }
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
157 for (int i = 0; i < count; i++) linesIndices[i] += delta;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
158 return null;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
159 }
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
160 int size() {
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
161 return count;
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
162 }
5eaabd099f15 BidiSegmentEvent, Bullet, StyledTextContent, StyledTextEvent, TextChangeListener, TextChangedEvent, TextChangingEvent
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
163 }