| /******************************************************************************* |
| * Copyright (c) 2007, 2009 Borland Software Corporation 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: |
| * Borland Software Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.m2m.internal.qvt.oml.editor.ui; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.List; |
| |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.contentassist.ICompletionProposal; |
| import org.eclipse.jface.text.contentassist.ICompletionProposalExtension2; |
| import org.eclipse.jface.text.templates.Template; |
| import org.eclipse.jface.text.templates.TemplateCompletionProcessor; |
| import org.eclipse.jface.text.templates.TemplateContext; |
| import org.eclipse.jface.text.templates.TemplateContextType; |
| import org.eclipse.m2m.internal.qvt.oml.editor.ui.completion.CategoryImageConstants; |
| import org.eclipse.m2m.internal.qvt.oml.editor.ui.completion.CompletionProposalUtil; |
| import org.eclipse.swt.graphics.Image; |
| |
| /** |
| * @author vrepeshko |
| */ |
| public class QvtTemplateCompletionProcessor extends TemplateCompletionProcessor { |
| |
| public QvtTemplateCompletionProcessor() { |
| myContextType = Activator.getDefault().getContextTypeRegistry().getContextType(QvtTemplateContextType.ID); |
| } |
| |
| @Override |
| public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int offset) { |
| ICompletionProposal[] allProposals = super.computeCompletionProposals(viewer, offset); |
| List<ICompletionProposal> validProposals = new ArrayList<ICompletionProposal>(allProposals.length); |
| for (ICompletionProposal proposal : allProposals) { |
| if (proposal instanceof ICompletionProposalExtension2) { |
| if (!((ICompletionProposalExtension2) proposal).validate(viewer.getDocument(), offset, null)) { |
| continue; |
| } |
| } |
| validProposals.add(proposal); |
| } |
| Collections.sort(validProposals, new Comparator<ICompletionProposal>() { |
| |
| public int compare(ICompletionProposal o1, ICompletionProposal o2) { |
| return String.CASE_INSENSITIVE_ORDER.compare(o1.getDisplayString(), o2.getDisplayString()); |
| } |
| |
| }); |
| return validProposals.toArray(new ICompletionProposal[validProposals.size()]); |
| } |
| |
| @Override |
| protected TemplateContextType getContextType(ITextViewer viewer, IRegion region) { |
| return myContextType; |
| } |
| |
| @Override |
| protected TemplateContext createContext(ITextViewer viewer, IRegion region) { |
| TemplateContextType contextType = getContextType(viewer, region); |
| if (contextType != null) { |
| IDocument document = viewer.getDocument(); |
| return new QvtTemplateContext(contextType, document, region.getOffset(), region.getLength()); |
| } |
| return null; |
| } |
| |
| @Override |
| protected Image getImage(Template template) { |
| return CompletionProposalUtil.getImage(CategoryImageConstants.TEMPLATE); |
| } |
| |
| @Override |
| protected Template[] getTemplates(String contextTypeId) { |
| return Activator.getDefault().getTemplateStore().getTemplates(contextTypeId); |
| } |
| |
| private final TemplateContextType myContextType; |
| |
| } |
| |