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/*******************************************************************************
* Copyright (c) 2001, 2004 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;
import org.eclipse.swt.graphics.Image;
import org.eclipse.wst.dtd.core.internal.DTDCorePlugin;
import org.eclipse.wst.dtd.core.parser.DTDRegionTypes;
import org.eclipse.wst.sse.core.text.IStructuredDocumentRegion;
import org.eclipse.wst.sse.core.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, DTDCorePlugin.getDTDString("_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
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