Java Code Examples for org.eclipse.xtext.util.ITextRegion#EMPTY_REGION

The following examples show how to use org.eclipse.xtext.util.ITextRegion#EMPTY_REGION . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

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

6 votes

public void open(IOutlineNode node, ISourceViewer textViewer) {
	if (node != null) {
		ITextRegion textRegion = node.getSignificantTextRegion();
		if (textRegion != null && textRegion != ITextRegion.EMPTY_REGION) {
			int offset = textRegion.getOffset();
			int length = textRegion.getLength();
			textViewer.setRangeIndication(offset, length, true);
			textViewer.revealRange(offset, length);
			textViewer.setSelectedRange(offset, length);
		} else {
			node.tryReadOnly(new IUnitOfWork.Void<EObject>() {
				@Override
				public void process(EObject state) throws Exception {
					openEObject(state);
				}
			});
		}
		
	}
}

Example 2

Source File: DefaultLocationInFileProvider.java From xtext-core with Eclipse Public License 2.0

6 votes

/**
 * @since 2.3
 */
protected ITextRegion createRegion(List<INode> nodes, RegionDescription query) {
	if (query == RegionDescription.FULL || query == RegionDescription.SIGNIFICANT)
		return createRegion(nodes);
	ITextRegion result = ITextRegion.EMPTY_REGION;
	for (INode node : nodes) {
		for(INode leafNode: node.getLeafNodes()) {
			if (!isHidden(leafNode, query)) {
				ITextRegionWithLineInformation region = leafNode.getTextRegionWithLineInformation();
				if (region.getLength() != 0) {
					result = result.merge(toZeroBasedRegion(region));
				}
			}
		}
	}
	return result;
}

Example 3

Source File: AbstractParseTreeConstructor.java From xtext-core with Eclipse Public License 2.0

6 votes

@Override
public TreeConstructionReport serializeSubtree(EObject object, ITokenStream out) throws IOException {
	TreeConstructionReportImpl report = createReport(object);
	AbstractToken root = serialize(object, report);
	Set<ICompositeNode> roots = Sets.newHashSet();
	Map<EObject, AbstractToken> obj2token = Maps.newHashMap();
	collectRootsAndEObjects(root, obj2token, roots);
	//		dump("", root);
	Map<ILeafNode, EObject> comments = commentAssociater.associateCommentsWithSemanticEObjects(object, roots);
	for (ICompositeNode r : roots)
		assignNodesByMatching(obj2token, r, comments);
	WsMergerStream wsout = new WsMergerStream(out);
	//		dump("", root);
	//		System.out.println(EmfFormatter.objToStr(roots.iterator().next(),
	//				ParsetreePackage.Literals.ABSTRACT_NODE__TOTAL_LENGTH,
	//				ParsetreePackage.Literals.ABSTRACT_NODE__TOTAL_OFFSET,
	//				ParsetreePackage.Literals.ABSTRACT_NODE__TOTAL_LINE, ParsetreePackage.Literals.ABSTRACT_NODE__PARENT));
	ITextRegion previousLocation = ITextRegion.EMPTY_REGION;
	initStream(root, wsout);
	previousLocation = write(root, wsout, previousLocation);
	wsout.flush();
	report.setPreviousLocation(previousLocation);
	return report;
}

Example 4

Source File: TreeAppendableUtil.java From xtext-extras with Eclipse Public License 2.0

5 votes

public ITreeAppendable traceSignificant(ITreeAppendable appendable, EObject source, boolean useForDebugging) {
	if (appendable instanceof TreeAppendable) {
		return ((TreeAppendable) appendable).trace(source,
				ILocationInFileProviderExtension.RegionDescription.SIGNIFICANT, useForDebugging);
	} else {
		ITextRegionWithLineInformation it = (ITextRegionWithLineInformation) locationProvider
				.getSignificantTextRegion(source);
		if (it != null && it != ITextRegion.EMPTY_REGION) {
			return appendable.trace(new LocationData(it.getOffset(), it.getLength(), it.getLineNumber(),
					it.getEndLineNumber(), null), useForDebugging);
		} else {
			return appendable;
		}
	}
}

Example 5

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

5 votes

/**
 * A {@link BackgroundOutlineTreeProvider} must use
 * {@link #AbstractOutlineNode(IOutlineNode, ImageDescriptor, Object, boolean)} instead.
 */
protected AbstractOutlineNode(IOutlineNode parent, Image image, Object text, boolean isLeaf) {
	this.text = text == null ? "<unnamed>" : text;
	this.image = image;
	this.isLeaf = isLeaf;
	setParent(parent);
	textRegion = ITextRegion.EMPTY_REGION;
}

Example 6

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

5 votes

/**
 * @since 2.4
 */
protected AbstractOutlineNode(IOutlineNode parent, ImageDescriptor imageDescriptor, Object text, boolean isLeaf) {
	this.text = text == null ? "<unnamed>" : text;
	this.imageDescriptor = imageDescriptor;
	this.isLeaf = isLeaf;
	setParent(parent);
	textRegion = ITextRegion.EMPTY_REGION;
}

Example 7