org.eclipse.jface.text.source.ICharacterPairMatcher Java Exaples

Source File: HackDefaultCharacterPairMatcher.java From e4macs with Eclipse Public License 1.0

6 votes

protected IRegion performMatch(IDocument doc, int caretOffset) throws BadLocationException {
	final int charOffset= caretOffset - 1;
	final char prevChar= doc.getChar(Math.max(charOffset, 0));
	if (!fPairs.contains(prevChar)) return null;
	final boolean isForward= fPairs.isStartCharacter(prevChar);
	fAnchor= isForward ? ICharacterPairMatcher.LEFT : ICharacterPairMatcher.RIGHT;
	final int searchStartPosition= isForward ? caretOffset : caretOffset - 2;
	final int adjustedOffset= isForward ? charOffset : caretOffset;
	final String partition= TextUtilities.getContentType(doc, fPartitioning, charOffset, false);
	final DocumentPartitionAccessor partDoc= new DocumentPartitionAccessor(doc, fPartitioning, partition);
	int endOffset= findMatchingPeer(partDoc, prevChar, fPairs.getMatching(prevChar),
			isForward,  isForward ? doc.getLength() : -1,
			searchStartPosition);
	if (endOffset == -1) return null;
	final int adjustedEndOffset= isForward ? endOffset + 1: endOffset;
	if (adjustedEndOffset == adjustedOffset) return null;
	return new Region(Math.min(adjustedOffset, adjustedEndOffset),
			Math.abs(adjustedEndOffset - adjustedOffset));
}

Source File: XtextUiModule.java From xtext-eclipse with Eclipse Public License 2.0

4 votes

@Override
public ICharacterPairMatcher bindICharacterPairMatcher() {
	return new DefaultCharacterPairMatcher(new char[] { ':', ';', '{', '}', '(', ')', '[', ']' });
}

Source File: DefaultUiModule.java From xtext-eclipse with Eclipse Public License 2.0

4 votes

public ICharacterPairMatcher bindICharacterPairMatcher() {
	return new BracePairMatcher();
}

Source File: LexerTokenAndCharacterPairAwareStrategy.java From xtext-eclipse with Eclipse Public License 2.0

4 votes

protected ICharacterPairMatcher getCharacterPairMatcher() {
	return characterPairMatcher;
}

Source File: GoToMatchingBracketAction.java From texlipse with Eclipse Public License 1.0

4 votes

public void run(IAction action) {
    if (targetEditor == null) return;
    ISourceViewer sourceViewer= targetEditor.getViewer();
    IDocument document= sourceViewer.getDocument();
    if (document == null)
        return;
    ITextSelection selection = (ITextSelection) targetEditor.getSelectionProvider().getSelection();
    SubStatusLineManager slm = 
        (SubStatusLineManager) targetEditor.getEditorSite().getActionBars().getStatusLineManager();
    
    int selectionLength= Math.abs(selection.getLength());
    if (selectionLength > 1) {
        slm.setErrorMessage(TexlipsePlugin.getResourceString("gotoMatchingBracketNotSelected"));
        slm.setVisible(true);
        sourceViewer.getTextWidget().getDisplay().beep();
        return;
    }
    
    int sourceCaretOffset= selection.getOffset() + selection.getLength();

    TexPairMatcher fBracketMatcher = new TexPairMatcher("{}[]()");
    
    IRegion region= fBracketMatcher.match(document, sourceCaretOffset);
    if (region == null) {
        slm.setErrorMessage(TexlipsePlugin.getResourceString("gotoMatchingBracketNotFound"));
        slm.setVisible(true);            
        sourceViewer.getTextWidget().getDisplay().beep();
        return;
    }

    int offset= region.getOffset();
    int length= region.getLength();

    if (length < 1) return;

    int anchor = fBracketMatcher.getAnchor();
    int targetOffset= (ICharacterPairMatcher.RIGHT == anchor) ? offset + 1: offset + length;

    if (selection.getLength() < 0)
        targetOffset -= selection.getLength();

    sourceViewer.setSelectedRange(targetOffset, selection.getLength());
    sourceViewer.revealRange(targetOffset, selection.getLength());
}

Source File: PairedBracketsPainter.java From xds-ide with Eclipse Public License 1.0

4 votes

/**
 * Handles a redraw request.
 *
 * @param gc the GC to draw into.
 */
private void handleDrawRequest(GC gc) {

    if (fPairPosition.isDeleted)
        return;

    int offset= fPairPosition.getOffset();
    int length= fPairPosition.getLength();
    if (length < 1)
        return;

    if (fSourceViewer instanceof ITextViewerExtension5) {
        ITextViewerExtension5 extension= (ITextViewerExtension5) fSourceViewer;
        IRegion widgetRange= extension.modelRange2WidgetRange(new Region(offset, length));
        if (widgetRange == null)
            return;

        try {
            // don't draw if the pair position is really hidden and widgetRange just
            // marks the coverage around it.
            IDocument doc= fSourceViewer.getDocument();
            int startLine= doc.getLineOfOffset(offset);
            int endLine= doc.getLineOfOffset(offset + length);
            if (extension.modelLine2WidgetLine(startLine) == -1 || extension.modelLine2WidgetLine(endLine) == -1)
                return;
        } catch (BadLocationException e) {
            return;
        }

        offset= widgetRange.getOffset();
        length= widgetRange.getLength();

    } else {
        IRegion region= fSourceViewer.getVisibleRegion();
        if (region.getOffset() > offset || region.getOffset() + region.getLength() < offset + length)
            return;
        offset -= region.getOffset();
    }
    
    boolean digraph = ((fMatchFlags & PairedBracketsMatcher.MATCH_FLAG_DIGRAPH) != 0);
    int cx = digraph ? 1 : 0;

    if (ICharacterPairMatcher.RIGHT == fAnchor)
        draw(gc, offset + length -1 - cx, offset, cx);
    else
        draw(gc, offset, offset + length -1 - cx, cx);
}

Source File: JavaScriptLightWeightEditor.java From typescript.java with MIT License

4 votes

/**
 * Jumps to the matching bracket.
 */
public void gotoMatchingBracket() {

	ISourceViewer sourceViewer = getSourceViewer();
	IDocument document = sourceViewer.getDocument();
	if (document == null)
		return;

	IRegion selection = getSignedSelection(sourceViewer);

	int selectionLength = Math.abs(selection.getLength());
	if (selectionLength > 1) {
		setStatusLineErrorMessage(JSDTTypeScriptUIMessages.GotoMatchingBracket_error_invalidSelection);
		sourceViewer.getTextWidget().getDisplay().beep();
		return;
	}

	// #26314
	int sourceCaretOffset = selection.getOffset() + selection.getLength();
	if (isSurroundedByBrackets(document, sourceCaretOffset))
		sourceCaretOffset -= selection.getLength();

	IRegion region = fBracketMatcher.match(document, sourceCaretOffset);
	if (region == null) {
		setStatusLineErrorMessage(JSDTTypeScriptUIMessages.GotoMatchingBracket_error_noMatchingBracket);
		sourceViewer.getTextWidget().getDisplay().beep();
		return;
	}

	int offset = region.getOffset();
	int length = region.getLength();

	if (length < 1)
		return;

	int anchor = fBracketMatcher.getAnchor();
	// http://dev.eclipse.org/bugs/show_bug.cgi?id=34195
	int targetOffset = (ICharacterPairMatcher.RIGHT == anchor) ? offset + 1 : offset + length;

	boolean visible = false;
	if (sourceViewer instanceof ITextViewerExtension5) {
		ITextViewerExtension5 extension = (ITextViewerExtension5) sourceViewer;
		visible = (extension.modelOffset2WidgetOffset(targetOffset) > -1);
	} else {
		IRegion visibleRegion = sourceViewer.getVisibleRegion();
		// http://dev.eclipse.org/bugs/show_bug.cgi?id=34195
		visible = (targetOffset >= visibleRegion.getOffset()
				&& targetOffset <= visibleRegion.getOffset() + visibleRegion.getLength());
	}

	if (!visible) {
		setStatusLineErrorMessage(JSDTTypeScriptUIMessages.GotoMatchingBracket_error_bracketOutsideSelectedElement);
		sourceViewer.getTextWidget().getDisplay().beep();
		return;
	}

	if (selection.getLength() < 0)
		targetOffset -= selection.getLength();

	sourceViewer.setSelectedRange(targetOffset, selection.getLength());
	sourceViewer.revealRange(targetOffset, selection.getLength());
}

Source File: StyledTextXtextAdapter.java From statecharts with Eclipse Public License 1.0

4 votes

protected ICharacterPairMatcher getCharacterPairMatcher() {
	return this.characterPairMatcher;
}

Source File: CharacterPairMatcher.java From APICloud-Studio with GNU General Public License v3.0

4 votes

private IRegion performMatch(IDocument doc, int caretOffset) throws BadLocationException
{
	int charOffset = Math.max(caretOffset - 1, 0);
	char prevChar = doc.getChar(charOffset);
	if (!fPairs.contains(prevChar))
	{
		// Now try to right of caret
		charOffset = caretOffset;
		caretOffset += 1;
		if (charOffset >= doc.getLength())
		{
			return null;
		}
		prevChar = doc.getChar(charOffset);
		if (!fPairs.contains(prevChar))
		{
			return null;
		}
	}

	ITypedRegion partition = getPartition(doc, charOffset);
	// FIXME if we're inside a string or comment, we should limit our search to just this particular partition!
	// Drop out if the char is inside a comment
	if (isComment(doc, partition))
	{
		return null;
	}

	boolean isForward = fPairs.isStartCharacter(prevChar);
	String contentType = partition.getType();
	if (fPairs.isAmbiguous(prevChar))
	{
		// If this is common start tag, look forward, if common end tag look backwards!
		if (CompositePartitionScanner.START_SWITCH_TAG.equals(contentType))
		{
			isForward = true;
		}
		else if (CompositePartitionScanner.END_SWITCH_TAG.equals(contentType))
		{
			isForward = false;
		}
		else
		{
			// Need to look at partition transition to tell if we're at end or beginning!
			String partitionAhead = TextUtilities.getContentType(doc, fPartitioning, charOffset + 1, false);
			String partitionBehind = TextUtilities.getContentType(doc, fPartitioning, charOffset - 1, false);
			if (contentType.equals(partitionBehind) && !contentType.equals(partitionAhead))
			{
				// End because we're transitioning out of a partition on this character
				isForward = false;
			}
			else if (isUnclosedPair(prevChar, doc, charOffset))
			{
				isForward = false;
			}
		}
	}
	fAnchor = isForward ? ICharacterPairMatcher.LEFT : ICharacterPairMatcher.RIGHT;
	int searchStartPosition = isForward ? charOffset + 1 : charOffset - 1;
	char endChar = fPairs.getMatching(prevChar);

	int endOffset = -1;
	if (isForward)
	{
		endOffset = searchForward(doc, searchStartPosition, prevChar, endChar, contentType);
	}
	else
	{
		endOffset = searchBackwards(doc, searchStartPosition, prevChar, endChar, contentType);
	}

	if (endOffset == -1)
	{
		return null;
	}
	final int adjustedOffset = isForward ? charOffset : caretOffset;
	final int adjustedEndOffset = isForward ? endOffset + 1 : endOffset;
	if (adjustedEndOffset == adjustedOffset)
	{
		return null;
	}
	return new Region(Math.min(adjustedOffset, adjustedEndOffset), Math.abs(adjustedEndOffset - adjustedOffset));
}

Source File: JavaEditor.java From Eclipse-Postfix-Code-Completion with Eclipse Public License 1.0

4 votes

/**
 * Jumps to the matching bracket.
 */
public void gotoMatchingBracket() {

	ISourceViewer sourceViewer= getSourceViewer();
	IDocument document= sourceViewer.getDocument();
	if (document == null)
		return;

	IRegion selection= getSignedSelection(sourceViewer);
	if (fPreviousSelections == null)
		initializePreviousSelectionList();

	IRegion region= fBracketMatcher.match(document, selection.getOffset(), selection.getLength());
	if (region == null) {
		region= fBracketMatcher.findEnclosingPeerCharacters(document, selection.getOffset(), selection.getLength());
		initializePreviousSelectionList();
		fPreviousSelections.add(selection);
	} else {
		if (fPreviousSelections.size() == 2) {
			if (!selection.equals(fPreviousSelections.get(1))) {
				initializePreviousSelectionList();
			}
		} else if (fPreviousSelections.size() == 3) {
			if (selection.equals(fPreviousSelections.get(2)) && !selection.equals(fPreviousSelections.get(0))) {
				IRegion originalSelection= fPreviousSelections.get(0);
				sourceViewer.setSelectedRange(originalSelection.getOffset(), originalSelection.getLength());
				sourceViewer.revealRange(originalSelection.getOffset(), originalSelection.getLength());
				initializePreviousSelectionList();
				return;
			}
			initializePreviousSelectionList();
		}
	}

	if (region == null) {
		setStatusLineErrorMessage(JavaEditorMessages.GotoMatchingBracket_error_noMatchingBracket);
		sourceViewer.getTextWidget().getDisplay().beep();
		return;
	}

	int offset= region.getOffset();
	int length= region.getLength();

	if (length < 1)
		return;

	int anchor= fBracketMatcher.getAnchor();
	// http://dev.eclipse.org/bugs/show_bug.cgi?id=34195
	int targetOffset= (ICharacterPairMatcher.RIGHT == anchor) ? offset + 1 : offset + length - 1;

	boolean visible= false;
	if (sourceViewer instanceof ITextViewerExtension5) {
		ITextViewerExtension5 extension= (ITextViewerExtension5) sourceViewer;
		visible= (extension.modelOffset2WidgetOffset(targetOffset) > -1);
	} else {
		IRegion visibleRegion= sourceViewer.getVisibleRegion();
		// http://dev.eclipse.org/bugs/show_bug.cgi?id=34195
		visible= (targetOffset >= visibleRegion.getOffset() && targetOffset <= visibleRegion.getOffset() + visibleRegion.getLength());
	}

	if (!visible) {
		setStatusLineErrorMessage(JavaEditorMessages.GotoMatchingBracket_error_bracketOutsideSelectedElement);
		sourceViewer.getTextWidget().getDisplay().beep();
		return;
	}

	int adjustment= getOffsetAdjustment(document, selection.getOffset() + selection.getLength(), selection.getLength());
	targetOffset+= adjustment;
	int direction= (selection.getLength() == 0) ? 0 : ((selection.getLength() > 0) ? 1 : -1);
	if (fPreviousSelections.size() == 1 && direction < 0) {
		targetOffset++;
	}

	if (fPreviousSelections.size() > 0) {
		fPreviousSelections.add(new Region(targetOffset, direction));
	}
	sourceViewer.setSelectedRange(targetOffset, direction);
	sourceViewer.revealRange(targetOffset, direction);
}

Source File: GotoMatchingBracketManager.java From goclipse with Eclipse Public License 1.0

4 votes

public void gotoMatchingBracket() {
	ITextViewer sourceViewer = langEditor.getSourceViewer_();
	
	IDocument document= sourceViewer.getDocument();
	if (document == null)
		return;
	
	IRegion selection= EditorUtils.getSignedSelection(sourceViewer);
	if (fPreviousSelections == null)
		initializePreviousSelectionList();
	
	IRegion region= getBracketMatcher().match(document, selection.getOffset(), selection.getLength());
	if (region == null) {
		region= getBracketMatcher().findEnclosingPeerCharacters(document, selection.getOffset(), selection.getLength());
		initializePreviousSelectionList();
		fPreviousSelections.add(selection);
	} else {
		if (fPreviousSelections.size() == 2) {
			if (!selection.equals(fPreviousSelections.get(1))) {
				initializePreviousSelectionList();
			}
		} else if (fPreviousSelections.size() == 3) {
			if (selection.equals(fPreviousSelections.get(2)) && !selection.equals(fPreviousSelections.get(0))) {
				IRegion originalSelection= fPreviousSelections.get(0);
				sourceViewer.setSelectedRange(originalSelection.getOffset(), originalSelection.getLength());
				sourceViewer.revealRange(originalSelection.getOffset(), originalSelection.getLength());
				initializePreviousSelectionList();
				return;
			}
			initializePreviousSelectionList();
		}
	}
	
	if (region == null) {
		langEditor.setStatusLineErrorMessage(LangEditorMessages.GotoMatchingBracket_error_noMatchingBracket);
		sourceViewer.getTextWidget().getDisplay().beep();
		return;
	}
	
	int offset= region.getOffset();
	int length= region.getLength();
	
	if (length < 1)
		return;
	
	int anchor= getBracketMatcher().getAnchor();
	// http://dev.eclipse.org/bugs/show_bug.cgi?id=34195
	int targetOffset= (ICharacterPairMatcher.RIGHT == anchor) ? offset + 1 : offset + length - 1;
	
	boolean visible= false;
	if (sourceViewer instanceof ITextViewerExtension5) {
		ITextViewerExtension5 extension= (ITextViewerExtension5) sourceViewer;
		visible= (extension.modelOffset2WidgetOffset(targetOffset) > -1);
	} else {
		IRegion visibleRegion= sourceViewer.getVisibleRegion();
		// http://dev.eclipse.org/bugs/show_bug.cgi?id=34195
		visible= (targetOffset >= visibleRegion.getOffset() && targetOffset <= visibleRegion.getOffset() + visibleRegion.getLength());
	}
	
	if (!visible) {
		langEditor.setStatusLineErrorMessage(LangEditorMessages.GotoMatchingBracket_error_bracketOutsideSelectedElement);
		sourceViewer.getTextWidget().getDisplay().beep();
		return;
	}
	
	int adjustment= getBracketMatcher().getOffsetAdjustment(document, selection.getOffset() + selection.getLength(), selection.getLength());
	targetOffset+= adjustment;
	int direction= (selection.getLength() == 0) ? 0 : ((selection.getLength() > 0) ? 1 : -1);
	if (fPreviousSelections.size() == 1 && direction < 0) {
		targetOffset++;
	}
	
	if (fPreviousSelections.size() > 0) {
		fPreviousSelections.add(new Region(targetOffset, direction));
	}
	sourceViewer.setSelectedRange(targetOffset, direction);
	sourceViewer.revealRange(targetOffset, direction);
}

org.eclipse.jface.text.source.ICharacterPairMatcher Java Examples