/**
* Copyright (c) 2013 committers of YAKINDU and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
* Contributors:
* committers of YAKINDU - initial API and implementation
*
*/
package org.yakindu.sct.generator.genmodel.ui.highlighting;
import java.util.List;
import org.eclipse.emf.common.util.TreeIterator;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.xtext.nodemodel.INode;
import org.eclipse.xtext.nodemodel.impl.LeafNode;
import org.eclipse.xtext.nodemodel.util.NodeModelUtils;
import org.eclipse.xtext.resource.XtextResource;
import org.eclipse.xtext.ui.editor.syntaxcoloring.DefaultHighlightingConfiguration;
import org.eclipse.xtext.ui.editor.syntaxcoloring.IHighlightedPositionAcceptor;
import org.eclipse.xtext.ui.editor.syntaxcoloring.ISemanticHighlightingCalculator;
import org.yakindu.sct.model.sgen.DeprecatableElement;
import org.yakindu.sct.model.sgen.GeneratorEntry;
import org.yakindu.sct.model.sgen.SGenPackage;
import org.yakindu.sct.model.sgen.impl.FeatureConfigurationImpl;
/**
*
* @author andreas muelder - Initial contribution and API
*
*/
public class SGenSemanticHighlightingCalculator implements ISemanticHighlightingCalculator {
public void provideHighlightingFor(XtextResource resource, IHighlightedPositionAcceptor acceptor) {
if (resource == null || resource.getParseResult() == null)
return;
TreeIterator<EObject> allContents = resource.getAllContents();
while (allContents.hasNext()) {
final EObject object = allContents.next();
if (object instanceof GeneratorEntry) {
GeneratorEntry entry = (GeneratorEntry) object;
List<INode> nodes = NodeModelUtils.findNodesForFeature(entry,
SGenPackage.Literals.GENERATOR_ENTRY__CONTENT_TYPE);
List<INode> features = NodeModelUtils.findNodesForFeature(entry,
SGenPackage.Literals.GENERATOR_ENTRY__FEATURES);
for (INode node : nodes) {
if (node instanceof LeafNode && !((LeafNode) node).isHidden()) {
acceptor.addPosition(node.getTotalOffset(), node.getTotalLength(),
DefaultHighlightingConfiguration.KEYWORD_ID);
}
}
for (INode node : features) {
if (node.getSemanticElement() instanceof FeatureConfigurationImpl) {
FeatureConfigurationImpl feature = (FeatureConfigurationImpl) node.getSemanticElement();
DeprecatableElement deprecatableElement = feature.getType();
if (deprecatableElement != null && deprecatableElement.isDeprecated()) {
acceptor.addPosition(node.getTotalOffset(), node.getTotalLength(),
SGenHighlightingConfiguration.DEPRECATION);
}
}
}
allContents.prune();
}
}
}
}