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comparison dwtx/jface/text/TreeLineTracker.d @ 158:25f1f92fa3df

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author Frank Benoit <benoit@tionex.de>
date Tue, 26 Aug 2008 02:46:34 +0200
parents a9566845f1cb
children 7926b636c282
comparison
equal deleted inserted replaced
157:7f75eaa8103a 158:25f1f92fa3df
151 import dwtx.jface.text.DocumentRewriteSessionType; // packageimport 151 import dwtx.jface.text.DocumentRewriteSessionType; // packageimport
152 import dwtx.jface.text.TextAttribute; // packageimport 152 import dwtx.jface.text.TextAttribute; // packageimport
153 import dwtx.jface.text.ITextViewerExtension4; // packageimport 153 import dwtx.jface.text.ITextViewerExtension4; // packageimport
154 import dwtx.jface.text.ITypedRegion; // packageimport 154 import dwtx.jface.text.ITypedRegion; // packageimport
155 155
156
157 import dwt.dwthelper.utils; 156 import dwt.dwthelper.utils;
158
159 import dwtx.dwtxhelper.Collection; 157 import dwtx.dwtxhelper.Collection;
160 158
161
162
163
164 import dwtx.core.runtime.Assert; 159 import dwtx.core.runtime.Assert;
165 import dwtx.jface.text.AbstractLineTracker.DelimiterInfo; 160 import dwtx.jface.text.AbstractLineTracker;
166 161
167 /** 162 /**
168 * Abstract implementation of <code>ILineTracker</code>. It lets the definition of line 163 * Abstract implementation of <code>ILineTracker</code>. It lets the definition of line
169 * delimiters to subclasses. Assuming that '\n' is the only line delimiter, this abstract 164 * delimiters to subclasses. Assuming that '\n' is the only line delimiter, this abstract
170 * implementation defines the following line scheme: 165 * implementation defines the following line scheme:
801 * <code>node</code> &gt; <code>length</code> 796 * <code>node</code> &gt; <code>length</code>
802 */ 797 */
803 private void replaceInternal(Node node, String text, int length, int firstLineDelta) { 798 private void replaceInternal(Node node, String text, int length, int firstLineDelta) {
804 // 1) modification on a single line 799 // 1) modification on a single line
805 800
806 DelimiterInfo info= text is null ? null : nextDelimiterInfo(text, 0); 801 AbstractLineTracker.DelimiterInfo info= text is null ? null : nextDelimiterInfo(text, 0);
807 802
808 if (info is null || info.delimiter is null) { 803 if (info is null || info.delimiter is null) {
809 // a) trivial case: insert into a single node, no line mangling 804 // a) trivial case: insert into a single node, no line mangling
810 int added= text is null ? 0 : text.length(); 805 int added= text is null ? 0 : text.length();
811 updateLength(node, added - length); 806 updateLength(node, added - length);
858 Node toDelete= successor; 853 Node toDelete= successor;
859 successor= successor(successor); 854 successor= successor(successor);
860 updateLength(toDelete, -toDelete.length); 855 updateLength(toDelete, -toDelete.length);
861 } 856 }
862 857
863 DelimiterInfo info= text is null ? null : nextDelimiterInfo(text, 0); 858 AbstractLineTracker.DelimiterInfo info= text is null ? null : nextDelimiterInfo(text, 0);
864 859
865 if (info is null || info.delimiter is null) { 860 if (info is null || info.delimiter is null) {
866 int added= text is null ? 0 : text.length(); 861 int added= text is null ? 0 : text.length();
867 862
868 // join the two lines if there are no lines added 863 // join the two lines if there are no lines added
1213 * 1208 *
1214 * @param text the text to be searched 1209 * @param text the text to be searched
1215 * @param offset the offset in the given text 1210 * @param offset the offset in the given text
1216 * @return the information of the first found delimiter or <code>null</code> 1211 * @return the information of the first found delimiter or <code>null</code>
1217 */ 1212 */
1218 protected abstract DelimiterInfo nextDelimiterInfo(String text, int offset); 1213 protected abstract AbstractLineTracker.DelimiterInfo nextDelimiterInfo(String text, int offset);
1219 1214
1220 /* 1215 /*
1221 * @see dwtx.jface.text.ILineTracker#getLineDelimiter(int) 1216 * @see dwtx.jface.text.ILineTracker#getLineDelimiter(int)
1222 */ 1217 */
1223 public final String getLineDelimiter(int line) { 1218 public final String getLineDelimiter(int line) {
1229 * @see dwtx.jface.text.ILineTracker#computeNumberOfLines(java.lang.String) 1224 * @see dwtx.jface.text.ILineTracker#computeNumberOfLines(java.lang.String)
1230 */ 1225 */
1231 public final int computeNumberOfLines(String text) { 1226 public final int computeNumberOfLines(String text) {
1232 int count= 0; 1227 int count= 0;
1233 int start= 0; 1228 int start= 0;
1234 DelimiterInfo delimiterInfo= nextDelimiterInfo(text, start); 1229 AbstractLineTracker.DelimiterInfo delimiterInfo= nextDelimiterInfo(text, start);
1235 while (delimiterInfo !is null && delimiterInfo.delimiterIndex > -1) { 1230 while (delimiterInfo !is null && delimiterInfo.delimiterIndex > -1) {
1236 ++count; 1231 ++count;
1237 start= delimiterInfo.delimiterIndex + delimiterInfo.delimiterLength; 1232 start= delimiterInfo.delimiterIndex + delimiterInfo.delimiterLength;
1238 delimiterInfo= nextDelimiterInfo(text, start); 1233 delimiterInfo= nextDelimiterInfo(text, start);
1239 } 1234 }