| /******************************************************************************* |
| * Copyright (c) 2005, 2006 IBM 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.sse.ui.internal.reconcile; |
| |
| import org.eclipse.jface.text.Position; |
| import org.eclipse.jface.text.source.ISourceViewer; |
| import org.eclipse.wst.sse.core.StructuredModelManager; |
| import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel; |
| import org.eclipse.wst.sse.core.internal.provisional.IndexedRegion; |
| import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion; |
| |
| /** |
| * Uses IStructuredModel nodes to check "overlaps()" when getting annotations to remove. |
| */ |
| public abstract class StructuredTextReconcilingStrategy extends AbstractStructuredTextReconcilingStrategy { |
| |
| |
| public StructuredTextReconcilingStrategy(ISourceViewer sourceViewer) { |
| super(sourceViewer); |
| } |
| |
| /** |
| * Checks if this position overlaps any of the StructuredDocument regions' |
| * correstponding IndexedRegion. |
| * |
| * @param pos |
| * @param dr |
| * @return true if the position overlaps any of the regions, otherwise |
| * false. |
| */ |
| protected boolean overlaps(Position pos, IStructuredDocumentRegion[] sdRegions) { |
| int start = -1; |
| int end = -1; |
| for (int i = 0; i < sdRegions.length; i++) { |
| if(!sdRegions[i].isDeleted()) { |
| IndexedRegion corresponding = getCorrespondingNode(sdRegions[i]); |
| if(corresponding != null) { |
| if (start == -1 || start > corresponding.getStartOffset()) |
| start = corresponding.getStartOffset(); |
| if (end == -1 || end < corresponding.getEndOffset()) |
| end = corresponding.getEndOffset(); |
| } |
| } |
| } |
| return pos.overlapsWith(start, end - start); |
| } |
| |
| /** |
| * Returns the corresponding node for the StructuredDocumentRegion. |
| * |
| * @param sdRegion |
| * @return the corresponding node for sdRegion |
| */ |
| protected IndexedRegion getCorrespondingNode(IStructuredDocumentRegion sdRegion) { |
| IStructuredModel sModel = StructuredModelManager.getModelManager().getExistingModelForRead(getDocument()); |
| IndexedRegion indexedRegion = null; |
| try { |
| if (sModel != null) |
| indexedRegion = sModel.getIndexedRegion(sdRegion.getStart()); |
| } finally { |
| if (sModel != null) |
| sModel.releaseFromRead(); |
| } |
| return indexedRegion; |
| } |
| |
| } |