annotate dwt/custom/DefaultContent.d @ 41:6337764516f1

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author Frank Benoit <benoit@tionex.de>
date Tue, 07 Oct 2008 16:29:55 +0200
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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.DefaultContent;
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15 import dwt.DWT;
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16 import dwt.DWTException;
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17 import dwt.internal.Compatibility;
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18 import dwt.widgets.TypedListener;
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19 import dwt.custom.StyledTextContent;
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20 import dwt.custom.TextChangeListener;
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21 import dwt.custom.StyledTextEvent;
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22 import dwt.custom.StyledTextListener;
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23 import dwt.custom.StyledText;
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24 import dwt.dwthelper.utils;
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26 static import tango.io.model.IFile;
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27 static import tango.text.Text;
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29 alias tango.text.Text.Text!(char) StringBuffer;
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31 class DefaultContent : StyledTextContent {
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32 private final static String LineDelimiter = tango.io.model.IFile.FileConst.NewlineString;
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33
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34 StyledTextListener[] textListeners; // stores text listeners for event sending
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35 char[] textStore; // stores the actual text
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36 int gapStart = -1; // the character position start of the gap
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37 int gapEnd = -1; // the character position after the end of the gap
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38 int gapLine = -1; // the line on which the gap exists, the gap will always be associated with one line
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39 int highWatermark = 300;
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40 int lowWatermark = 50;
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42 int[][] lines; // array of character positions and lengths representing the lines of text
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43 int lineCount_ = 0; // the number of lines of text
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44 int expandExp = 1; // the expansion exponent, used to increase the lines array exponentially
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45 int replaceExpandExp = 1; // the expansion exponent, used to increase the lines array exponentially
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46
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47 /**
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48 * Creates a new DefaultContent and initializes it. A <code>StyledTextContent</> will always have
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49 * at least one empty line.
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50 */
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51 this() {
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52 lines = new int[][]( 50, 2 );
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53 setText("");
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54 }
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55 /**
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56 * Adds a line to the end of the line indexes array. Increases the size of the array if necessary.
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57 * <code>lineCount</code> is updated to reflect the new entry.
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58 * <p>
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59 *
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60 * @param start the start of the line
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61 * @param length the length of the line
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62 */
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63 void addLineIndex(int start, int length) {
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64 int size = lines.length;
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65 if (lineCount_ is size) {
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66 // expand the lines by powers of 2
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67 int[][] newLines = new int[][]( size+Compatibility.pow2(expandExp), 2 );
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68 System.arraycopy(lines, 0, newLines, 0, size);
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69 lines = newLines;
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70 expandExp++;
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71 }
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72 int[] range = [start, length];
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73 lines[lineCount_] = range;
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74 lineCount_++;
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75 }
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76 /**
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77 * Adds a line index to the end of <code>linesArray</code>. Increases the
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78 * size of the array if necessary and returns a new array.
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79 * <p>
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80 *
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81 * @param start the start of the line
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82 * @param length the length of the line
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83 * @param linesArray the array to which to add the line index
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84 * @param count the position at which to add the line
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85 * @return a new array of line indexes
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86 */
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87 int[][] addLineIndex(int start, int length, int[][] linesArray, int count) {
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88 int size = linesArray.length;
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89 int[][] newLines = linesArray;
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90 if (count is size) {
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91 newLines = new int[][]( size+Compatibility.pow2(replaceExpandExp), 2 );
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92 replaceExpandExp++;
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93 System.arraycopy(linesArray, 0, newLines, 0, size);
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94 }
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95 int[] range = [start, length];
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96 newLines[count] = range;
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97 return newLines;
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98 }
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99 /**
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100 * Adds a <code>TextChangeListener</code> listening for
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101 * <code>TextChangingEvent</code> and <code>TextChangedEvent</code>. A
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102 * <code>TextChangingEvent</code> is sent before changes to the text occur.
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103 * A <code>TextChangedEvent</code> is sent after changes to the text
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104 * occurred.
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105 * <p>
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106 *
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107 * @param listener the listener
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108 * @exception IllegalArgumentException <ul>
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109 * <li>ERROR_NULL_ARGUMENT when listener is null</li>
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110 * </ul>
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111 */
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112 public void addTextChangeListener(TextChangeListener listener) {
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113 if (listener is null) error(DWT.ERROR_NULL_ARGUMENT);
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114 StyledTextListener typedListener = new StyledTextListener(listener);
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115 textListeners ~= typedListener;
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116 }
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117 /**
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118 * Adjusts the gap to accommodate a text change that is occurring.
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119 * <p>
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120 *
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121 * @param position the position at which a change is occurring
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122 * @param sizeHint the size of the change
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123 * @param line the line where the gap will go
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124 */
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125 void adjustGap(int position, int sizeHint, int line) {
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diff changeset
126 if (position is gapStart) {
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127 // text is being inserted at the gap position
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128 int size = (gapEnd - gapStart) - sizeHint;
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129 if (lowWatermark <= size && size <= highWatermark)
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130 return;
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131 } else if ((position + sizeHint is gapStart) && (sizeHint < 0)) {
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132 // text is being deleted at the gap position
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133 int size = (gapEnd - gapStart) - sizeHint;
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134 if (lowWatermark <= size && size <= highWatermark)
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135 return;
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136 }
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137 moveAndResizeGap(position, sizeHint, line);
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138 }
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139 /**
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140 * Calculates the indexes of each line in the text store. Assumes no gap exists.
0
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141 * Optimized to do less checking.
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142 */
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143 void indexLines(){
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144 int start = 0;
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145 lineCount_ = 0;
0
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146 int textLength = textStore.length;
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147 int i;
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148 for (i = start; i < textLength; i++) {
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149 char ch = textStore[i];
0
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150 if (ch is DWT.CR) {
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151 // see if the next character is a LF
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152 if (i + 1 < textLength) {
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153 ch = textStore[i+1];
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154 if (ch is DWT.LF) {
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155 i++;
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156 }
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157 }
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158 addLineIndex(start, i - start + 1);
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159 start = i + 1;
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160 } else if (ch is DWT.LF) {
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161 addLineIndex(start, i - start + 1);
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162 start = i + 1;
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163 }
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164 }
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165 addLineIndex(start, i - start);
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166 }
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167 /**
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168 * Returns whether or not the given character is a line delimiter. Both CR and LF
0
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169 * are valid line delimiters.
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170 * <p>
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171 *
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172 * @param ch the character to test
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173 * @return true if ch is a delimiter, false otherwise
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174 */
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175 bool isDelimiter(char ch) {
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176 if (ch is DWT.CR) return true;
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177 if (ch is DWT.LF) return true;
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178 return false;
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179 }
0
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180 /**
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181 * Determine whether or not the replace operation is valid. DefaultContent will not allow
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182 * the /r/n line delimiter to be split or partially deleted.
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183 * <p>
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184 *
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185 * @param start start offset of text to replace
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186 * @param replaceLength start offset of text to replace
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187 * @param newText start offset of text to replace
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188 * @return a bool specifying whether or not the replace operation is valid
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189 */
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190 protected bool isValidReplace(int start, int replaceLength, String newText){
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191 if (replaceLength is 0) {
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192 // inserting text, see if the \r\n line delimiter is being split
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193 if (start is 0) return true;
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194 if (start is getCharCount()) return true;
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195 char before = getTextRange(start - 1, 1)[0];
0
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196 if (before is '\r') {
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197 char after = getTextRange(start, 1)[0];
0
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198 if (after is '\n') return false;
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199 }
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200 } else {
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201 // deleting text, see if part of a \r\n line delimiter is being deleted
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202 char startChar = getTextRange(start, 1)[0];
0
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203 if (startChar is '\n') {
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204 // see if char before delete position is \r
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205 if (start !is 0) {
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206 char before = getTextRange(start - 1, 1)[0];
0
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207 if (before is '\r') return false;
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208 }
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209 }
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diff changeset
210 char endChar = getTextRange(start + replaceLength - 1, 1)[0];
0
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211 if (endChar is '\r') {
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212 // see if char after delete position is \n
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213 if (start + replaceLength !is getCharCount()) {
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214 char after = getTextRange(start + replaceLength, 1)[0];
0
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215 if (after is '\n') return false;
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216 }
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217 }
41
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diff changeset
218 }
0
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219 return true;
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220 }
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221 /**
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222 * Calculates the indexes of each line of text in the given range.
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223 * <p>
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224 *
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225 * @param offset the logical start offset of the text lineate
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226 * @param length the length of the text to lineate, includes gap
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227 * @param numLines the number of lines to initially allocate for the line index array,
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228 * passed in for efficiency (the exact number of lines may be known)
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229 * @return a line indexes array where each line is identified by a start offset and
0
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230 * a length
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231 */
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232 int[][] indexLines(int offset, int length, int numLines){
41
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233 int[][] indexedLines = new int[][]( numLines, 2 );
0
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234 int start = 0;
41
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diff changeset
235 int lineCount_ = 0;
0
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236 int i;
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237 replaceExpandExp = 1;
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238 for (i = start; i < length; i++) {
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diff changeset
239 int location = i + offset;
0
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parents:
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240 if ((location >= gapStart) && (location < gapEnd)) {
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241 // ignore the gap
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242 } else {
41
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diff changeset
243 char ch = textStore[location];
0
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244 if (ch is DWT.CR) {
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245 // see if the next character is a LF
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diff changeset
246 if (location+1 < textStore.length) {
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247 ch = textStore[location+1];
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248 if (ch is DWT.LF) {
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249 i++;
41
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250 }
0
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251 }
41
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252 indexedLines = addLineIndex(start, i - start + 1, indexedLines, lineCount_);
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253 lineCount_++;
0
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254 start = i + 1;
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255 } else if (ch is DWT.LF) {
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256 indexedLines = addLineIndex(start, i - start + 1, indexedLines, lineCount_);
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257 lineCount_++;
0
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258 start = i + 1;
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259 }
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260 }
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261 }
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262 int[][] newLines = new int[][]( lineCount_+1, 2 );
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263 System.arraycopy(indexedLines, 0, newLines, 0, lineCount_);
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264 int[] range = [start, i - start];
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265 newLines[lineCount_] = range;
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266 return newLines;
0
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267 }
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268 /**
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269 * Inserts text.
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270 * <p>
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271 *
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272 * @param position the position at which to insert the text
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273 * @param text the text to insert
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274 */
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275 void insert(int position, String text) {
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276 if (text.length is 0) return;
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277
0
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278 int startLine = getLineAtOffset(position);
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279 int change = text.length;
0
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280 bool endInsert = position is getCharCount();
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281 adjustGap(position, change, startLine);
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282
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283 // during an insert the gap will be adjusted to start at
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284 // position and it will be associated with startline, the
41
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285 // inserted text will be placed in the gap
0
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286 int startLineOffset = getOffsetAtLine(startLine);
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287 // at this point, startLineLength will include the start line
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288 // and all of the newly inserted text
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289 int startLineLength = getPhysicalLine(startLine).length;
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290
0
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291 if (change > 0) {
41
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292 // shrink gap
0
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293 gapStart += (change);
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294 for (int i = 0; i < text.length; i++) {
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295 textStore[position + i]= text[i];
0
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296 }
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297 }
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298
0
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299 // figure out the number of new lines that have been inserted
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300 int [][] newLines = indexLines(startLineOffset, startLineLength, 10);
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301 // only insert an empty line if it is the last line in the text
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302 int numNewLines = newLines.length - 1;
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303 if (newLines[numNewLines][1] is 0) {
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304 // last inserted line is a new line
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305 if (endInsert) {
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306 // insert happening at end of the text, leave numNewLines as
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307 // is since the last new line will not be concatenated with another
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308 // line
0
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309 numNewLines += 1;
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310 } else {
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311 numNewLines -= 1;
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312 }
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313 }
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314
0
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315 // make room for the new lines
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316 expandLinesBy(numNewLines);
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317 // shift down the lines after the replace line
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318 for (int i = lineCount_ - 1; i > startLine; i--) {
0
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319 lines[i + numNewLines]=lines[i];
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320 }
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321 // insert the new lines
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322 for (int i = 0; i < numNewLines; i++) {
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323 newLines[i][0] += startLineOffset;
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324 lines[startLine + i]=newLines[i];
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325 }
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326 // update the last inserted line
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327 if (numNewLines < newLines.length) {
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328 newLines[numNewLines][0] += startLineOffset;
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329 lines[startLine + numNewLines] = newLines[numNewLines];
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330 }
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331
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332 lineCount_ += numNewLines;
0
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333 gapLine = getLineAtPhysicalOffset(gapStart);
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334 }
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335 /**
41
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336 * Moves the gap and adjusts its size in anticipation of a text change.
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337 * The gap is resized to actual size + the specified size and moved to the given
0
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338 * position.
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339 * <p>
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340 *
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341 * @param position the position at which a change is occurring
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342 * @param size the size of the change
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343 * @param newGapLine the line where the gap should be put
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344 */
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345 void moveAndResizeGap(int position, int size, int newGapLine) {
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346 char[] content = null;
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347 int oldSize = gapEnd - gapStart;
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348 int newSize;
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349 if (size > 0) {
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350 newSize = highWatermark + size;
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351 } else {
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352 newSize = lowWatermark - size;
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353 }
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354 // remove the old gap from the lines information
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355 if (gapExists()) {
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356 // adjust the line length
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357 lines[gapLine][1] = lines[gapLine][1] - oldSize;
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358 // adjust the offsets of the lines after the gapLine
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359 for (int i = gapLine + 1; i < lineCount_; i++) {
0
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360 lines[i][0] = lines[i][0] - oldSize;
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361 }
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362 }
41
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363
0
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364 if (newSize < 0) {
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365 if (oldSize > 0) {
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366 // removing the gap
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367 content = new char[textStore.length - oldSize];
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368 System.arraycopy(textStore, 0, content, 0, gapStart);
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369 System.arraycopy(textStore, gapEnd, content, gapStart, content.length - gapStart);
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370 textStore = content;
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371 }
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372 gapStart = gapEnd = position;
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373 return;
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374 }
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375 content = new char[textStore.length + (newSize - oldSize)];
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376 int newGapStart = position;
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377 int newGapEnd = newGapStart + newSize;
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378 if (oldSize is 0) {
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379 System.arraycopy(textStore, 0, content, 0, newGapStart);
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380 System.arraycopy(textStore, newGapStart, content, newGapEnd, content.length - newGapEnd);
0
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diff changeset
381 } else if (newGapStart < gapStart) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
382 int delta = gapStart - newGapStart;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
383 System.arraycopy(textStore, 0, content, 0, newGapStart);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
384 System.arraycopy(textStore, newGapStart, content, newGapEnd, delta);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
385 System.arraycopy(textStore, gapEnd, content, newGapEnd + delta, textStore.length - gapEnd);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
386 } else {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
387 int delta = newGapStart - gapStart;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
388 System.arraycopy(textStore, 0, content, 0, gapStart);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
389 System.arraycopy(textStore, gapEnd, content, gapStart, delta);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
390 System.arraycopy(textStore, gapEnd + delta, content, newGapEnd, content.length - newGapEnd);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
391 }
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
392 textStore = content;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
393 gapStart = newGapStart;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
394 gapEnd = newGapEnd;
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
395
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
396 // add the new gap to the lines information
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
397 if (gapExists()) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
398 gapLine = newGapLine;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
399 // adjust the line length
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
400 int gapLength = gapEnd - gapStart;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
401 lines[gapLine][1] = lines[gapLine][1] + (gapLength);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
402 // adjust the offsets of the lines after the gapLine
41
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Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
403 for (int i = gapLine + 1; i < lineCount_; i++) {
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
404 lines[i][0] = lines[i][0] + gapLength;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
405 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
406 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
407 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
408 /**
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
409 * Returns the number of lines that are in the specified text.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
410 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
411 *
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
412 * @param startOffset the start of the text to lineate
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
413 * @param length the length of the text to lineate
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
414 * @return number of lines
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
415 */
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
416 int lineCount(int startOffset, int length){
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
417 if (length is 0) {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
418 return 0;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
419 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
420 int lineCount_ = 0;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
421 int count = 0;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
422 int i = startOffset;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
423 if (i >= gapStart) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
424 i += gapEnd - gapStart;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
425 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
426 while (count < length) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
427 if ((i >= gapStart) && (i < gapEnd)) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
428 // ignore the gap
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
429 } else {
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
430 char ch = textStore[i];
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
431 if (ch is DWT.CR) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
432 // see if the next character is a LF
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
433 if (i + 1 < textStore.length) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
434 ch = textStore[i+1];
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
435 if (ch is DWT.LF) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
436 i++;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
437 count++;
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
438 }
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
439 }
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
440 lineCount_++;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
441 } else if (ch is DWT.LF) {
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
442 lineCount_++;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
443 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
444 count++;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
445 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
446 i++;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
447 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
448 return lineCount_;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
449 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
450 /**
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
451 * Returns the number of lines that are in the specified text.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
452 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
453 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
454 * @param text the text to lineate
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
455 * @return number of lines in the text
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
456 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
457 int lineCount(String text){
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
458 int lineCount_ = 0;
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
459 int length = text.length;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
460 for (int i = 0; i < length; i++) {
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
461 char ch = text[i];
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
462 if (ch is DWT.CR) {
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
463 if (i + 1 < length && text[i + 1] is DWT.LF) {
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
464 i++;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
465 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
466 lineCount_++;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
467 } else if (ch is DWT.LF) {
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
468 lineCount_++;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
469 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
470 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
471 return lineCount_;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
472 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
473 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
474 * @return the logical length of the text store
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
475 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
476 public int getCharCount() {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
477 int length = gapEnd - gapStart;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
478 return (textStore.length - length);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
479 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
480 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
481 * Returns the line at <code>index</code> without delimiters.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
482 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
483 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
484 * @param index the index of the line to return
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
485 * @return the logical line text (i.e., without the gap)
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
486 * @exception IllegalArgumentException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
487 * <li>ERROR_INVALID_ARGUMENT when index is out of range</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
488 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
489 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
490 public String getLine(int index) {
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
491 if ((index >= lineCount_) || (index < 0)) error(DWT.ERROR_INVALID_ARGUMENT);
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
492 int start = lines[index][0];
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
493 int length_ = lines[index][1];
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
494 int end = start + length_ - 1;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
495 if (!gapExists() || (end < gapStart) || (start >= gapEnd)) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
496 // line is before or after the gap
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
497 while ((length_ - 1 >= 0) && isDelimiter(textStore[start+length_-1])) {
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
498 length_--;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
499 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
500 return textStore[ start .. start + length_].dup;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
501 } else {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
502 // gap is in the specified range, strip out the gap
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
503 StringBuffer buf = new StringBuffer();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
504 int gapLength = gapEnd - gapStart;
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
505 buf.append(textStore[ start .. gapStart ] );
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
506 buf.append(textStore[ gapEnd .. gapEnd + length_ - gapLength - (gapStart - start) ]);
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
507 length_ = buf.length;
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
508 while ((length_ - 1 >=0) && isDelimiter(buf.slice[length_ - 1])) {
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
509 length_--;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
510 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
511 return buf.toString()[ 0 .. length_ ].dup;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
512 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
513 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
514 /**
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
515 * Returns the line delimiter that should be used by the StyledText
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
516 * widget when inserting new lines. This delimiter may be different than the
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
517 * delimiter that is used by the <code>StyledTextContent</code> interface.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
518 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
519 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
520 * @return the platform line delimiter as specified in the line.separator
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
521 * system property.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
522 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
523 public String getLineDelimiter() {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
524 return LineDelimiter;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
525 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
526 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
527 * Returns the line at the given index with delimiters.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
528 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
529 * @param index the index of the line to return
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
530 * @return the logical line text (i.e., without the gap) with delimiters
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
531 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
532 String getFullLine(int index) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
533 int start = lines[index][0];
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
534 int length_ = lines[index][1];
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
535 int end = start + length_ - 1;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
536 if (!gapExists() || (end < gapStart) || (start >= gapEnd)) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
537 // line is before or after the gap
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
538 return textStore[ start .. start + length_ ].dup;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
539 } else {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
540 // gap is in the specified range, strip out the gap
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
541 StringBuffer buffer = new StringBuffer();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
542 int gapLength = gapEnd - gapStart;
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
543 buffer.append(textStore[ start .. gapStart ]);
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
544 buffer.append(textStore[ gapEnd .. gapEnd + length_ - gapLength - (gapStart - start) ]);
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
545 return buffer.toString().dup;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
546 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
547 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
548 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
549 * Returns the physical line at the given index (i.e., with delimiters and the gap).
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
550 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
551 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
552 * @param index the line index
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
553 * @return the physical line
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
554 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
555 String getPhysicalLine(int index) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
556 int start = lines[index][0];
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
557 int length_ = lines[index][1];
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
558 return getPhysicalText(start, length_);
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
559 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
560 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
561 * @return the number of lines in the text store
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
562 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
563 public int getLineCount(){
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
564 return lineCount_;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
565 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
566 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
567 * Returns the line at the given offset.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
568 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
569 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
570 * @param charPosition logical character offset (i.e., does not include gap)
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
571 * @return the line index
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
572 * @exception IllegalArgumentException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
573 * <li>ERROR_INVALID_ARGUMENT when charPosition is out of range</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
574 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
575 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
576 public int getLineAtOffset(int charPosition){
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
577 if ((charPosition > getCharCount()) || (charPosition < 0)) error(DWT.ERROR_INVALID_ARGUMENT);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
578 int position;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
579 if (charPosition < gapStart) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
580 // position is before the gap
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
581 position = charPosition;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
582 } else {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
583 // position includes the gap
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
584 position = charPosition + (gapEnd - gapStart);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
585 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
586
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
587 // if last line and the line is not empty you can ask for
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
588 // a position that doesn't exist (the one to the right of the
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
589 // last character) - for inserting
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
590 if (lineCount_ > 0) {
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
591 int lastLine = lineCount_ - 1;
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
592 if (position is lines[lastLine][0] + lines[lastLine][1])
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
593 return lastLine;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
594 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
595
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
596 int high = lineCount_;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
597 int low = -1;
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
598 int index = lineCount_;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
599 while (high - low > 1) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
600 index = (high + low) / 2;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
601 int lineStart = lines[index][0];
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
602 int lineEnd = lineStart + lines[index][1] - 1;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
603 if (position <= lineStart) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
604 high = index;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
605 } else if (position <= lineEnd) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
606 high = index;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
607 break;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
608 } else {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
609 low = index;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
610 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
611 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
612 return high;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
613 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
614 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
615 * Returns the line index at the given physical offset.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
616 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
617 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
618 * @param position physical character offset (i.e., includes gap)
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
619 * @return the line index
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
620 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
621 int getLineAtPhysicalOffset(int position){
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
622 int high = lineCount_;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
623 int low = -1;
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
624 int index = lineCount_;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
625 while (high - low > 1) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
626 index = (high + low) / 2;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
627 int lineStart = lines[index][0];
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
628 int lineEnd = lineStart + lines[index][1] - 1;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
629 if (position <= lineStart) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
630 high = index;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
631 } else if (position <= lineEnd) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
632 high = index;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
633 break;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
634 } else {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
635 low = index;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
636 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
637 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
638 return high;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
639 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
640 /**
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
641 * Returns the logical offset of the given line.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
642 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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643 *
41
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Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
644 * @param lineIndex index of line
0
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
645 * @return the logical starting offset of the line. When there are not any lines,
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
646 * getOffsetAtLine(0) is a valid call that should answer 0.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
647 * @exception IllegalArgumentException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
648 * <li>ERROR_INVALID_ARGUMENT when lineIndex is out of range</li>
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
649 * </ul>
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
650 */
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
651 public int getOffsetAtLine(int lineIndex) {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
652 if (lineIndex is 0) return 0;
41
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Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
653 if ((lineIndex >= lineCount_) || (lineIndex < 0)) error(DWT.ERROR_INVALID_ARGUMENT);
0
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
654 int start = lines[lineIndex][0];
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
655 if (start > gapEnd) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
656 return start - (gapEnd - gapStart);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
657 } else {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
658 return start;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
659 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
660 }
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
661 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
662 * Increases the line indexes array to accommodate more lines.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
663 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
664 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
665 * @param numLines the number to increase the array by
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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666 */
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
667 void expandLinesBy(int numLines) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
668 int size = lines.length;
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
669 if (size - lineCount_ >= numLines) {
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
670 return;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
671 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
672 int[][] newLines = new int[][]( size+Math.max(10, numLines), 2 );
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
673 System.arraycopy(lines, 0, newLines, 0, size);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
674 lines = newLines;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
675 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
676 /**
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
677 * Reports an DWT error.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
678 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
679 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
680 * @param code the error code
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
681 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
682 void error (int code) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
683 DWT.error(code);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
684 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
685 /**
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
686 * Returns whether or not a gap exists in the text store.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
687 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
688 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
689 * @return true if gap exists, false otherwise
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
690 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
691 bool gapExists() {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
692 return gapStart !is gapEnd;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
693 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
694 /**
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
695 * Returns a string representing the continuous content of
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
696 * the text store.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
697 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
698 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
699 * @param start the physical start offset of the text to return
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
700 * @param length the physical length of the text to return
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
701 * @return the text
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
702 */
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
703 String getPhysicalText(int start, int length_) {
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
704 return textStore[ start .. start + length_ ].dup;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
705 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
706 /**
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
707 * Returns a string representing the logical content of
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
708 * the text store (i.e., gap stripped out).
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
709 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
710 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
711 * @param start the logical start offset of the text to return
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
712 * @param length the logical length of the text to return
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
713 * @return the text
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
714 */
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
715 public String getTextRange(int start, int length_) {
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
716 if (textStore is null)
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
717 return "";
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
718 if (length_ is 0)
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
719 return "";
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
720 int end= start + length_;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
721 if (!gapExists() || (end < gapStart))
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
722 return textStore[ start .. start + length_].dup;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
723 if (gapStart < start) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
724 int gapLength= gapEnd - gapStart;
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
725 return textStore[ start + gapLength .. start + gapLength + length_ ].dup;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
726 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
727 StringBuffer buf = new StringBuffer();
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
728 buf.append(textStore[ start .. start + gapStart - start ] );
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
729 buf.append(textStore[ gapEnd .. gapEnd + end - gapStart ] );
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
730 return buf.toString().dup;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
731 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
732 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
733 * Removes the specified <code>TextChangeListener</code>.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
734 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
735 *
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
736 * @param listener the listener which should no longer be notified
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
737 *
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
738 * @exception IllegalArgumentException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
739 * <li>ERROR_NULL_ARGUMENT when listener is null</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
740 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
741 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
742 public void removeTextChangeListener(TextChangeListener listener){
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
743 if (listener is null) error(DWT.ERROR_NULL_ARGUMENT);
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
744 for (int i = 0; i < textListeners.length; i++) {
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
745 TypedListener typedListener = cast(TypedListener) textListeners[i];
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
746 if (typedListener.getEventListener () is listener) {
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
747 textListeners = textListeners[ 0 .. i ] ~ textListeners[ i+1 .. $ ];
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
748 break;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
749 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
750 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
751 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
752 /**
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
753 * Replaces the text with <code>newText</code> starting at position <code>start</code>
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
754 * for a length of <code>replaceLength</code>. Notifies the appropriate listeners.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
755 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
756 *
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
757 * When sending the TextChangingEvent, <code>newLineCount</code> is the number of
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
758 * lines that are going to be inserted and <code>replaceLineCount</code> is
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
759 * the number of lines that are going to be deleted, based on the change
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
760 * that occurs visually. For example:
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
761 * <ul>
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
762 * <li>(replaceText,newText) is> (replaceLineCount,newLineCount)
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
763 * <li>("","\n") is> (0,1)
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
764 * <li>("\n\n","a") is> (2,0)
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
765 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
766 * </p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
767 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
768 * @param start start offset of text to replace
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
769 * @param replaceLength start offset of text to replace
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
770 * @param newText start offset of text to replace
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
771 *
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
772 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
773 * <li>ERROR_INVALID_ARGUMENT when the text change results in a multi byte
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
774 * line delimiter being split or partially deleted. Splitting a line
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
775 * delimiter by inserting text between the CR and LF characters of the
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
776 * \r\n delimiter or deleting part of this line delimiter is not supported</li>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
777 * </ul>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
778 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
779 public void replaceTextRange(int start, int replaceLength, String newText){
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
780 // check for invalid replace operations
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
781 if (!isValidReplace(start, replaceLength, newText)) DWT.error(DWT.ERROR_INVALID_ARGUMENT);
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
782
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
783 // inform listeners
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
784 StyledTextEvent event = new StyledTextEvent(this);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
785 event.type = StyledText.TextChanging;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
786 event.start = start;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
787 event.replaceLineCount = lineCount(start, replaceLength);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
788 event.text = newText;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
789 event.newLineCount = lineCount(newText);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
790 event.replaceCharCount = replaceLength;
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
791 event.newCharCount = newText.length;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
792 sendTextEvent(event);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
793
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
794 // first delete the text to be replaced
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
795 delete_(start, replaceLength, event.replaceLineCount + 1);
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
796 // then insert the new text
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
797 insert(start, newText);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
798 // inform listeners
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
799 event = new StyledTextEvent(this);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
800 event.type = StyledText.TextChanged;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
801 sendTextEvent(event);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
802 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
803 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
804 * Sends the text listeners the TextChanged event.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
805 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
806 void sendTextEvent(StyledTextEvent event) {
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
807 for (int i = 0; i < textListeners.length; i++) {
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
808 (cast(StyledTextListener)textListeners[i]).handleEvent(event);
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
809 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
810 }
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
811 /**
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
812 * Sets the content to text and removes the gap since there are no sensible predictions
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
813 * about where the next change will occur.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
814 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
815 *
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
816 * @param text the text
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
817 */
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
818 public void setText (String text){
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
819 textStore = text.dup;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
820 gapStart = -1;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
821 gapEnd = -1;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
822 expandExp = 1;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
823 indexLines();
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
824 StyledTextEvent event = new StyledTextEvent(this);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
825 event.type = StyledText.TextSet;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
826 event.text = "";
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
827 sendTextEvent(event);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
828 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
829 /**
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
830 * Deletes text.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
831 * <p>
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
832 * @param position the position at which the text to delete starts
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
833 * @param length the length of the text to delete
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
834 * @param numLines the number of lines that are being deleted
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
835 */
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
836 void delete_(int position, int length_, int numLines) {
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
837 if (length_ is 0) return;
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
838
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
839 int startLine = getLineAtOffset(position);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
840 int startLineOffset = getOffsetAtLine(startLine);
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
841 int endLine = getLineAtOffset(position + length_);
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
842
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
843 String endText = "";
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
844 bool splittingDelimiter = false;
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
845 if (position + length_ < getCharCount()) {
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
846 endText = getTextRange(position + length_ - 1, 2);
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
847 if ((endText[0] is DWT.CR) && (endText[1] is DWT.LF)) {
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
848 splittingDelimiter = true;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
849 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
850 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
851
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
852 adjustGap(position + length_, -length_, startLine);
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
853 int [][] oldLines = indexLines(position, length_ + (gapEnd - gapStart), numLines);
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
854
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
855 // enlarge the gap - the gap can be enlarged either to the
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
856 // right or left
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
857 if (position + length_ is gapStart) {
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
858 gapStart -= length_;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
859 } else {
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
860 gapEnd += length_;
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
861 }
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
862
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
863 // figure out the length of the new concatenated line, do so by
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
864 // finding the first line delimiter after position
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
865 int j = position;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
866 bool eol = false;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
867 while (j < textStore.length && !eol) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
868 if (j < gapStart || j >= gapEnd) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
869 char ch = textStore[j];
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
870 if (isDelimiter(ch)) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
871 if (j + 1 < textStore.length) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
872 if (ch is DWT.CR && (textStore[j+1] is DWT.LF)) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
873 j++;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
874 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
875 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
876 eol = true;
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
877 }
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
878 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
879 j++;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
880 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
881 // update the line where the deletion started
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
882 lines[startLine][1] = (position - startLineOffset) + (j - position);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
883 // figure out the number of lines that have been deleted
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
884 int numOldLines = oldLines.length - 1;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
885 if (splittingDelimiter) numOldLines -= 1;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
886 // shift up the lines after the last deleted line, no need to update
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
887 // the offset or length of the lines
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
888 for (int i = endLine + 1; i < lineCount_; i++) {
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
889 lines[i - numOldLines] = lines[i];
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
890 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
891 lineCount_ -= numOldLines;
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
892 gapLine = getLineAtPhysicalOffset(gapStart);
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
893 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
894
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
895 /++
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
896 + DWT extension
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
897 +/
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
898 int utf8AdjustOffset( int offset ){
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
899 if (textStore is null)
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
900 return offset;
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
901 if (offset is 0)
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
902 return offset;
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
903 if( offset >= textStore.length ){
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
904 return offset;
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
905 }
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
906 if (!gapExists() || (offset < gapStart)){
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
907 while( textStore[offset] & 0xC0 is 0x80 ){
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
908 offset--;
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
909 }
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
910 return offset;
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
911 }
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
912 int gapLength= gapEnd - gapStart;
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
913 if( offset+gapLength >= textStore.length ){
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
914 return offset;
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
915 }
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
916 while( textStore[offset+gapLength] & 0xC0 is 0x80 ){
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
917 offset--;
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
918 }
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
919 return offset;
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
920 }
41
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
921
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
922
6337764516f1 Sync dwt/custom with dwt-linux (took copy of complete folder)
Frank Benoit <benoit@tionex.de>
parents: 7
diff changeset
923 }