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/*****************************************************************************
* Copyright (c) 2009 CEA LIST.
*
* 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:
* Remi Schnekenburger (CEA LIST) remi.schnekenburger@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.diagram.common.part;
import org.eclipse.gef.palette.PaletteContainer;
import org.eclipse.gef.palette.PaletteEntry;
import org.eclipse.gmf.runtime.gef.ui.palette.customize.PaletteEntryState;
import org.eclipse.ui.IMemento;
/**
* Extended palette state, that also manages parent modification, etc.
*/
public class PapyrusPaletteEntryState extends PaletteEntryState {
/** key for the parent field */
public static final String PARENT_ID_KEY = "parent";
/** value of the parent ID field */
protected String parentID;
/**
* Creates a new PapyrusPaletteEntryState.
*
* @param entry
* the palette entry to manage
*/
public PapyrusPaletteEntryState(PaletteEntry entry) {
super(entry);
}
public void applyChangesFromMemento(IMemento entryMemento) {
super.applyChangesFromMemento(entryMemento);
PaletteEntry entry = getPaletteEntry();
String sValue = entryMemento.getString(PARENT_ID_KEY);
if(sValue != null) {
if(!entry.getParent().getId().equals(sValue)) {
// adds to the new container, but does nto remove from old one,
// because of
// iterator...
PaletteContainer container = PaletteUtil.getContainerByID(entry, sValue);
container.add(entry);
}
}
}
/**
* {@inheritDoc}
*/
public void rollback() {
super.rollback();
PaletteEntry entry = getPaletteEntry();
entry.setParent(PaletteUtil.getContainerByID(entry, parentID));
}
/**
* {@inheritDoc}
*/
@Override
public void storeChangesInMemento(IMemento memento) {
super.storeChangesInMemento(memento);
PaletteEntry entry = getPaletteEntry();
// stores the parent id name
if(parentID != null && !parentID.equals(entry.getParent().getId()) || (parentID == null && entry.getParent() != null)) {
memento.putString(PARENT_ID_KEY, entry.getParent().getId());
}
}
/**
* {@inheritDoc}
*/
public void storeState() {
super.storeState();
PaletteEntry entry = getPaletteEntry();
parentID = entry.getParent().getId();
}
}
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