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/*****************************************************************************
* Copyright (c) 2017 CEA LIST 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:
* Fanch BONNABESSE (ALL4TEC) fanch.bonnabesse@all4tec.net - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.common.databinding.custom;
import org.eclipse.core.databinding.observable.ChangeEvent;
import org.eclipse.core.databinding.observable.value.ValueDiff;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
/**
*
* Implementation for an ObservableValue associated to a BooleanValueStyle and a IPreferenceStore.
* @since 3.0
*
*/
public class CustomBooleanStyleWithStoreObservableValue extends CustomBooleanStyleObservableValue {
/**
* The IPreferenceStore corresponding to the EditPart.
*/
protected IPreferenceStore preferenceStore;
/**
* The listener on the preference store used to force refresh.
*/
protected IPropertyChangeListener listener = new IPropertyChangeListener() {
@Override
public void propertyChange(final PropertyChangeEvent event) {
if (styleName.equals(event.getProperty())) {
ValueDiff diff = new ValueDiff() {
@Override
public Object getOldValue() {
return event.getOldValue();
}
@Override
public Object getNewValue() {
return event.getNewValue();
}
};
fireValueChange(diff);
}
}
};
/**
*
* Constructor.
*
* @param source
* The view source
* @param domain
* The editing domain
* @param styleName
* The style name to of the property
* @param preferenceStore
* The preference store
*/
public CustomBooleanStyleWithStoreObservableValue(final View source, final EditingDomain domain, final String styleName, final IPreferenceStore preferenceStore) {
super(source, domain, styleName);
this.preferenceStore = preferenceStore;
this.preferenceStore.addPropertyChangeListener(this.listener);
}
/**
* {@inheritDoc}
*/
@Override
public void handleChange(final ChangeEvent event) {
super.handleChange(event);
addToPreferenceStore(doGetValue());
}
/**
* Set the new value in the corresponding IPreferenceStore.
*
* @param value
* The new value
*/
public void addToPreferenceStore(final Object value) {
if (value instanceof Boolean) {
this.preferenceStore.setValue(this.styleName, ((Boolean) value).booleanValue());
}
}
/**
* {@inheritDoc}
*/
@Override
public void dispose() {
this.preferenceStore.removePropertyChangeListener(this.listener);
super.dispose();
}
/**
* {@inheritDoc}
*/
@Override
protected Boolean getDefaultValue() {
return this.preferenceStore.getBoolean(this.styleName);
}
}
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