Examples with ITextRegion org.eclipse.xtext.util.ITextRegion used on opensource projects

Example 41 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-eclipse by eclipse.

the class TypeChooser method revealInEditor.

protected void revealInEditor(XtextEditor activeXtextEditor, Iterable<TypeUsage> usages, final XtextResource resource) {
    boolean isRevealUsages = activeXtextEditor.getDocument().priorityReadOnly(new IUnitOfWork<Boolean, XtextResource>() {

        @Override
        public Boolean exec(XtextResource state) throws Exception {
            return state.getURI().equals(resource.getURI());
        }
    });
    if (isRevealUsages) {
        originalSelection = activeXtextEditor.getSelectionProvider().getSelection();
        ITextRegion firstOccurrence = usages.iterator().next().getTextRegion();
        activeXtextEditor.selectAndReveal(firstOccurrence.getOffset(), firstOccurrence.getLength());
    }
}

Example 42 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-eclipse by eclipse.

the class XbaseHyperLinkHelper method createHyperlinksTo.

@Override
protected void createHyperlinksTo(XtextResource resource, INode node, EObject target, IHyperlinkAcceptor acceptor) {
    EObject semanticObj = NodeModelUtils.findActualSemanticObjectFor(node);
    if (semanticObj instanceof XImportDeclaration) {
        if (((XImportDeclaration) semanticObj).isStatic()) {
            final ITextRegion textRegion = this.locationInFileProvider.getSignificantTextRegion(semanticObj, XtypePackage.Literals.XIMPORT_DECLARATION__IMPORTED_TYPE, 0);
            int _offset = textRegion.getOffset();
            int _length = textRegion.getLength();
            final Region region = new Region(_offset, _length);
            this.createHyperlinksTo(resource, region, target, acceptor);
        }
    } else if (semanticObj instanceof XAbstractFeatureCall) {
        if (target instanceof JvmType) {
            XAbstractFeatureCall casted = (XAbstractFeatureCall) semanticObj;
            while (casted.isPackageFragment()) {
                casted = (XAbstractFeatureCall) casted.eContainer();
            }
            if (casted.isTypeLiteral()) {
                ITextRegion textRegion = locationInFileProvider.getSignificantTextRegion(casted);
                Region jfaceRegion = new Region(textRegion.getOffset(), textRegion.getLength());
                createHyperlinksTo(resource, jfaceRegion, target, acceptor);
                return;
            }
        }
    }
    super.createHyperlinksTo(resource, node, target, acceptor);
}

Example 43 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-eclipse by eclipse.

the class ExpressionUtil method isBeginOfExpression.

/**
 * @return whether the given selection is zero length
 */
protected boolean isBeginOfExpression(INode node) {
    ITextRegion textRegion = node.getTextRegion();
    if (textRegion.getLength() == 0)
        return false;
    char firstChar = node.getText().charAt(0);
    return Character.isLetterOrDigit(firstChar) || firstChar == '\'' || firstChar == '"' || firstChar == '[' || firstChar == '(' || firstChar == '{' || firstChar == '#' || firstChar == '@';
}

Example 44 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-eclipse by eclipse.

the class ExtractVariableHandler method execute.

@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
    try {
        syncUtil.totalSync(false);
        final XtextEditor editor = EditorUtils.getActiveXtextEditor(event);
        if (editor != null) {
            final ITextSelection selection = (ITextSelection) editor.getSelectionProvider().getSelection();
            final IXtextDocument document = editor.getDocument();
            XtextResource resource = document.priorityReadOnly(new IUnitOfWork<XtextResource, XtextResource>() {

                @Override
                public XtextResource exec(XtextResource state) throws Exception {
                    return resourceCopier.loadIntoNewResourceSet(state);
                }
            });
            XExpression expression = expressionUtil.findSelectedExpression(resource, selection);
            if (expression != null) {
                ExtractVariableRefactoring introduceVariableRefactoring = refactoringProvider.get();
                if (introduceVariableRefactoring.initialize(editor, expression)) {
                    ITextRegion region = locationInFileProvider.getFullTextRegion(expression);
                    editor.selectAndReveal(region.getOffset(), region.getLength());
                    ExtractVariableWizard wizard = new ExtractVariableWizard(introduceVariableRefactoring);
                    RefactoringWizardOpenOperation_NonForking openOperation = new RefactoringWizardOpenOperation_NonForking(wizard);
                    openOperation.run(editor.getSite().getShell(), "Extract Local Variable");
                }
            }
        }
    } catch (InterruptedException e) {
        return null;
    } catch (Exception exc) {
        LOG.error("Error during refactoring", exc);
        MessageDialog.openError(Display.getCurrent().getActiveShell(), "Error during refactoring", exc.getMessage() + "\nSee log for details");
    }
    return null;
}

Example 45 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-eclipse by eclipse.

the class SemanticHighlighter method highlightNode.

/**
 * Highlights the non-hidden parts of {@code node} with the style that is associated with {@code id}.
 */
protected void highlightNode(INode node, String id, IHighlightedPositionAcceptor acceptor) {
    if (node == null)
        return;
    if (node instanceof ILeafNode) {
        ITextRegion textRegion = node.getTextRegion();
        acceptor.addPosition(textRegion.getOffset(), textRegion.getLength(), id);
    } else {
        for (ILeafNode leaf : node.getLeafNodes()) {
            if (!leaf.isHidden()) {
                ITextRegion leafRegion = leaf.getTextRegion();
                acceptor.addPosition(leafRegion.getOffset(), leafRegion.getLength(), id);
            }
        }
    }
}