diff options
Diffstat (limited to 'org.eclipse.ui.examples.javaeditor/Eclipse Java Editor Example/org/eclipse/ui/examples/javaeditor/java/JavaDoubleClickSelector.java')
| -rw-r--r-- | org.eclipse.ui.examples.javaeditor/Eclipse Java Editor Example/org/eclipse/ui/examples/javaeditor/java/JavaDoubleClickSelector.java | 234 |
1 files changed, 0 insertions, 234 deletions
diff --git a/org.eclipse.ui.examples.javaeditor/Eclipse Java Editor Example/org/eclipse/ui/examples/javaeditor/java/JavaDoubleClickSelector.java b/org.eclipse.ui.examples.javaeditor/Eclipse Java Editor Example/org/eclipse/ui/examples/javaeditor/java/JavaDoubleClickSelector.java deleted file mode 100644 index be1ea743b21..00000000000 --- a/org.eclipse.ui.examples.javaeditor/Eclipse Java Editor Example/org/eclipse/ui/examples/javaeditor/java/JavaDoubleClickSelector.java +++ /dev/null @@ -1,234 +0,0 @@ -package org.eclipse.ui.examples.javaeditor.java;
-
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved.
- */
-
-import org.eclipse.jface.text.BadLocationException;
-import org.eclipse.jface.text.IDocument;
-import org.eclipse.jface.text.ITextDoubleClickStrategy;
-import org.eclipse.jface.text.ITextViewer;
-
-/**
- * Double click strategy aware of Java identifier syntax rules.
- */
-public class JavaDoubleClickSelector implements ITextDoubleClickStrategy {
-
- protected ITextViewer fText;
- protected int fPos;
- protected int fStartPos;
- protected int fEndPos;
-
- protected static char[] fgBrackets= { '{', '}', '(', ')', '[', ']', '"', '"' };
-
- /*
- * Create a JavaDoubleClickSelector.
- */
- public JavaDoubleClickSelector() {
- super();
- }
-
- /* (non-Javadoc)
- * Method declared on ITextDoubleClickStrategy
- */
- public void doubleClicked(ITextViewer text) {
-
- fPos= text.getSelectedRange().x;
-
- if (fPos < 0)
- return;
-
- fText= text;
-
- if (!selectBracketBlock())
- selectWord();
- }
-
- /**
- * Match the brackets at the current selection. Return true if successful,
- * false otherwise.
- */
- protected boolean matchBracketsAt() {
-
- char prevChar, nextChar;
-
- int i;
- int bracketIndex1= fgBrackets.length;
- int bracketIndex2= fgBrackets.length;
-
- fStartPos= -1;
- fEndPos= -1;
-
- // get the chars preceding and following the start position
- try {
-
- IDocument doc= fText.getDocument();
-
- prevChar= doc.getChar(fPos - 1);
- nextChar= doc.getChar(fPos);
-
- // is the char either an open or close bracket?
- for (i= 0; i < fgBrackets.length; i= i + 2) {
- if (prevChar == fgBrackets[i]) {
- fStartPos= fPos - 1;
- bracketIndex1= i;
- }
- }
- for (i= 1; i < fgBrackets.length; i= i + 2) {
- if (nextChar == fgBrackets[i]) {
- fEndPos= fPos;
- bracketIndex2= i;
- }
- }
-
- if (fStartPos > -1 && bracketIndex1 < bracketIndex2) {
- fEndPos= searchForClosingBracket(fStartPos, prevChar, fgBrackets[bracketIndex1 + 1], doc);
- if (fEndPos > -1)
- return true;
- else
- fStartPos= -1;
- } else if (fEndPos > -1) {
- fStartPos= searchForOpenBracket(fEndPos, fgBrackets[bracketIndex2 - 1], nextChar, doc);
- if (fStartPos > -1)
- return true;
- else
- fEndPos= -1;
- }
-
- } catch (BadLocationException x) {
- }
-
- return false;
- }
-
- /**
- * Select the word at the current selection. Return true if successful,
- * false otherwise.
- */
- protected boolean matchWord() {
-
- IDocument doc= fText.getDocument();
-
- try {
-
- int pos= fPos;
- char c;
-
- while (pos >= 0) {
- c= doc.getChar(pos);
- if (!Character.isJavaIdentifierPart(c))
- break;
- --pos;
- }
-
- fStartPos= pos;
-
- pos= fPos;
- int length= doc.getLength();
-
- while (pos < length) {
- c= doc.getChar(pos);
- if (!Character.isJavaIdentifierPart(c))
- break;
- ++pos;
- }
-
- fEndPos= pos;
-
- return true;
-
- } catch (BadLocationException x) {
- }
-
- return false;
- }
-
- /**
- * Returns the position of the closing bracket after startPosition.
- * @returns the location of the closing bracket.
- * @param startPosition - the beginning position
- * @param openBracket - the character that represents the open bracket
- * @param closeBracket - the character that represents the close bracket
- * @param document - the document being searched
- */
- protected int searchForClosingBracket(int startPosition, char openBracket, char closeBracket, IDocument document) throws BadLocationException {
- int stack= 1;
- int closePosition= startPosition + 1;
- int length= document.getLength();
- char nextChar;
-
- while (closePosition < length && stack > 0) {
- nextChar= document.getChar(closePosition);
- if (nextChar == openBracket && nextChar != closeBracket)
- stack++;
- else if (nextChar == closeBracket)
- stack--;
- closePosition++;
- }
-
- if (stack == 0)
- return closePosition - 1;
- else
- return -1;
-
- }
-
- /**
- * Returns the position of the open bracket before startPosition.
- * @returns the location of the starting bracket.
- * @param startPosition - the beginning position
- * @param openBracket - the character that represents the open bracket
- * @param closeBracket - the character that represents the close bracket
- * @param document - the document being searched
- */
- protected int searchForOpenBracket(int startPosition, char openBracket, char closeBracket, IDocument document) throws BadLocationException {
- int stack= 1;
- int openPos= startPosition - 1;
- char nextChar;
-
- while (openPos >= 0 && stack > 0) {
- nextChar= document.getChar(openPos);
- if (nextChar == closeBracket && nextChar != openBracket)
- stack++;
- else if (nextChar == openBracket)
- stack--;
- openPos--;
- }
-
- if (stack == 0)
- return openPos + 1;
- else
- return -1;
- }
-
- /**
- * Select the area between the selected bracket and the closing bracket. Return
- * true if successful.
- */
- protected boolean selectBracketBlock() {
- if (matchBracketsAt()) {
-
- if (fStartPos == fEndPos)
- fText.setSelectedRange(fStartPos, 0);
- else
- fText.setSelectedRange(fStartPos + 1, fEndPos - fStartPos - 1);
-
- return true;
- }
- return false;
- }
-
- /**
- * Select the word at the current selection.
- */
- protected void selectWord() {
- if (matchWord()) {
-
- if (fStartPos == fEndPos)
- fText.setSelectedRange(fStartPos, 0);
- else
- fText.setSelectedRange(fStartPos + 1, fEndPos - fStartPos - 1);
- }
- }
-}
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