| /******************************************************************************* |
| * Copyright (c) 2001, 2005 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 |
| * Jens Lukowski/Innoopract - initial renaming/restructuring |
| * |
| *******************************************************************************/ |
| package org.eclipse.wst.dtd.core.internal; |
| |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.wst.dtd.core.internal.parser.DTDRegionTypes; |
| import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion; |
| import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion; |
| |
| |
| public abstract class CMRepeatableNode extends CMNode { |
| |
| public static final char ONCE = '1'; |
| public static final char ONE_OR_MORE = '+'; |
| public static final char OPTIONAL = '?'; |
| public static final char ZERO_OR_MORE = '*'; |
| |
| |
| public CMRepeatableNode(DTDFile file, IStructuredDocumentRegion flatNode) { |
| super(file, flatNode); |
| } |
| |
| public Image getImage() { |
| DTDCorePlugin resourcePlugin = DTDCorePlugin.getInstance(); |
| return resourcePlugin.getImage(DTDResource.ELEMENTREFICON); |
| } |
| |
| public char getOccurrence() { |
| ITextRegion occurRegion = getOccurrenceRegion(); |
| if (occurRegion != null && occurRegion.getType() == DTDRegionTypes.OCCUR_TYPE) { |
| return getStructuredDTDDocumentRegion().getText(occurRegion).charAt(0); |
| } |
| return CMRepeatableNode.ONCE; |
| } |
| |
| // returns the occurrenceregion, or the last region where the occurrence |
| // region should appear after |
| abstract public ITextRegion getOccurrenceRegion(); |
| |
| public void setOccurrence(char occurrence) { |
| beginRecording(this, DTDCoreMessages._UI_LABEL_CM_REP_NODE_CHG_OCCUR); //$NON-NLS-1$ |
| setOccurrence(this, occurrence); |
| endRecording(this); |
| } |
| |
| public void setOccurrence(Object requestor, char occurrence) { |
| if (getOccurrence() != occurrence) { |
| ITextRegion region = getOccurrenceRegion(); |
| if (region != null) { |
| if (region.getType().equals(DTDRegionTypes.OCCUR_TYPE)) { |
| if (occurrence == CMRepeatableNode.ONCE) { |
| // we need to remove the occur region from the flat |
| // model; |
| getDTDFile().getStructuredDocument().replaceText(requestor, getStructuredDTDDocumentRegion().getStartOffset(region), 1, ""); //$NON-NLS-1$ |
| } |
| else { |
| // Region oldOccur = region.createCopy(); |
| getDTDFile().getStructuredDocument().replaceText(requestor, getStructuredDTDDocumentRegion().getStartOffset(region), 1, String.valueOf(occurrence)); |
| // changeStructuredDocument(oldOccur, region); |
| } |
| } |
| else if (occurrence != CMRepeatableNode.ONCE) { |
| // System.out.println(getString()); |
| // we need to create an occurrenceRegion |
| replaceText(requestor, getStructuredDTDDocumentRegion().getEndOffset(region), 0, String.valueOf(occurrence)); |
| } |
| } |
| } |
| } |
| |
| }// CMRepeatableNode |