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// SEIRRelativeValueColorProviderAdapter.java
package org.eclipse.stem.ui.adapters.color;
/*******************************************************************************
* Copyright (c) 2007 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
*******************************************************************************/
import org.eclipse.emf.edit.provider.ItemPropertyDescriptor;
import org.eclipse.stem.core.graph.DynamicNodeLabel;
import org.eclipse.stem.core.graph.Node;
import org.eclipse.stem.core.graph.NodeLabel;
import org.eclipse.stem.ui.adapters.color.AbstractRelativeValueColorProviderAdapterFactory.PropertySelectionListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.GC;
/**
* This class adapts {@link Node} objects to
* {@link SEIRRelativeValueColorProvider} object.
*/
public class SEIRRelativeValueColorProviderAdapter extends
AbstractRelativeValueColorProviderAdapter implements PropertySelectionListener{
private ItemPropertyDescriptor selectedProperty;
/**
* Constructor
* @param selectedProperty
*/
public SEIRRelativeValueColorProviderAdapter(ItemPropertyDescriptor selectedProperty) {
super();
this.selectedProperty = selectedProperty;
} // SEIRRelativeValueColorProviderAdapter
/**
* @see org.eclipse.stem.ui.adapters.color.AbstractRelativeValueColorProviderAdapter#getRelativeValue()
*/
@Override
public float getRelativeValue() {
final Node node = (Node) getTarget();
for (final NodeLabel label : node.getLabels()) {
if (label instanceof DynamicNodeLabel) {
DynamicNodeLabel nodeLabel = (DynamicNodeLabel)label;
if (nodeLabel.getDecorator() == selectedDecorator) {
setRVPTarget(nodeLabel);
return (float) rvp.getRelativeValue(selectedProperty);
}
}
}
return 0; // We shouldn't reach this point
} // getRelativeValue
/**
* @see org.eclipse.stem.ui.adapters.color.AbstractRelativeValueColorProviderAdapter#updateGC(org.eclipse.swt.graphics.GC, float, boolean)
*/
@Override
public void updateGC(GC gcToUpdate, float gainFactor, boolean useLogScaling) {
device = gcToUpdate.getDevice();
double relativeValue = getRelativeValue();
double gainedRelativeValue = gainFactor * relativeValue;
Color foreground = getColorForRelativeValue(gainedRelativeValue);
gcToUpdate.setBackground(foreground);
}
/**
* @see org.eclipse.stem.ui.adapters.color.IntensityColorsLabelsMappingColorProviderAdapterFactory.PropertySelectionListener#propertySelected(org.eclipse.emf.edit.provider.ItemPropertyDescriptor)
*/
public void propertySelected(ItemPropertyDescriptor selectedProperty) {
this.selectedProperty = selectedProperty;
}
} // SEIRRelativeValueColorProviderAdapter
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