Mercurial > projects > dwt-mac
annotate dwt/custom/Bullet.d @ 156:969e7de37c3d default tip
Fixes to get dwt to work with dmd and ldc
author | Jacob Carlborg <doob@me.com> |
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date | Wed, 08 Jul 2009 21:56:44 +0200 |
parents | 6337764516f1 |
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rev | line source |
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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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118 linesIndices = newLinesIndices; |
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119 } |
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120 System.arraycopy(linesIndices, modifyEnd, linesIndices, modifyStart + lineCount, count - modifyEnd); |
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121 for (int i = 0; i < lineCount; i++) linesIndices[modifyStart + i] = startLine + i; |
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122 count = newSize; |
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123 } |
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124 } |
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125 int indexOf (int lineIndex) { |
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126 for (int i = 0; i < count; i++) { |
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127 if (linesIndices[i] is lineIndex) return i; |
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128 } |
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129 return -1; |
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130 } |
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131 public override hash_t toHash() { |
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132 return style.toHash() ^ type; |
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133 } |
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134 int[] removeIndices (int startLine, int replaceLineCount, int newLineCount, bool update) { |
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135 if (count is 0) return null; |
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136 if (startLine > linesIndices[count - 1]) return null; |
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137 int endLine = startLine + replaceLineCount; |
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138 int delta = newLineCount - replaceLineCount; |
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139 for (int i = 0; i < count; i++) { |
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140 int index = linesIndices[i]; |
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141 if (startLine <= index) { |
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142 int j = i; |
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143 while (j < count) { |
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144 if (linesIndices[j] >= endLine) break; |
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145 j++; |
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146 } |
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147 if (update) { |
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148 for (int k = j; k < count; k++) linesIndices[k] += delta; |
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149 } |
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150 int[] redrawLines = new int[count - j]; |
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151 System.arraycopy(linesIndices, j, redrawLines, 0, count - j); |
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152 System.arraycopy(linesIndices, j, linesIndices, i, count - j); |
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153 count -= (j - i); |
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154 return redrawLines; |
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155 } |
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156 } |
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157 for (int i = 0; i < count; i++) linesIndices[i] += delta; |
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158 return null; |
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159 } |
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160 int size() { |
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161 return count; |
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162 } |
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163 } |