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/*****************************************************************************
* Copyright (c) 2011 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:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.properties.databinding;
import org.eclipse.core.databinding.observable.value.AbstractObservableValue;
import org.eclipse.gmf.runtime.notation.datatype.GradientData;
/**
* An ObservableValue for GradientData
* The GradientData is not a pure EMF object
*
* @author Camille Letavernier
*/
public class GradientDataObservableValue extends AbstractObservableValue {
private GradientData data;
private GradientProperty property;
/**
*
* Constructor.
*
* @param data
* The GradientData to observe
* @param property
* The name of the property to observe
*/
public GradientDataObservableValue(GradientData data, String property) {
this.data = data;
this.property = GradientProperty.valueOf(property);
}
public Object getValueType() {
return Object.class;
}
@Override
protected Object doGetValue() {
if(data == null) {
return null;
}
switch(property) {
case gradientColor1:
return data.getGradientColor1();
case gradientColor2:
return data.getGradientColor2();
case gradientStyle:
return data.getGradientStyle();
case activate:
if(data instanceof ObservableGradientData) {
return ((ObservableGradientData)data).getActivate();
} else {
return true;
}
}
return null;
}
@Override
protected void doSetValue(Object value) {
if(data == null) {
return;
}
switch(property) {
case gradientColor1:
data.setGradientColor1((Integer)value);
break;
case gradientColor2:
data.setGradientColor2((Integer)value);
break;
case gradientStyle:
data.setGradientStyle((Integer)value);
break;
case activate:
if(data instanceof ObservableGradientData) {
((ObservableGradientData)data).setActivate((Boolean)value);
}
}
}
/**
* The list of properties that can be used by the GradientDataObservableValue
*
* @author Camille Letavernier
*/
public static enum GradientProperty {
/**
* The gradientColor2 property
* (In Papyrus diagrams, it is actually the fillColor that is used
* instead of the gradientColor2)
*/
gradientColor2,
/**
* The gradientColor1 property
*/
gradientColor1,
/**
* The gradientStyle property (Vertical or Horizontal)
*/
gradientStyle,
/**
* Whether the gradient is activated or not
*/
activate
}
}
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