/*
* Geotoolkit - An Open Source Java GIS Toolkit
* http://www.geotoolkit.org
*
* (C) 2008 - 2009, Geomatys
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotoolkit.style;
import org.opengis.filter.expression.Expression;
import org.opengis.style.ShadedRelief;
import org.opengis.style.StyleVisitor;
import static org.geotoolkit.style.StyleConstants.*;
import static org.opengis.filter.expression.Expression.*;
/**
* Immutable implementation of Types shaded relief.
*
* @author Johann Sorel (Geomatys)
* @module
*/
public class DefaultShadedRelief implements ShadedRelief{
private final boolean bright;
private final Expression relief;
/**
* Create a default immutable shaded relief.
*
* @param bright : can be null
* @param relief : if null or Expression.NIL will be replaced by default description.
*/
public DefaultShadedRelief(final boolean bright, final Expression relief){
this.bright = bright;
this.relief = (relief == null || relief == NIL) ? DEFAULT_SHADED_RELIEF_FACTOR : relief;
}
/**
* {@inheritDoc }
*/
@Override
public boolean isBrightnessOnly() {
return bright;
}
/**
* {@inheritDoc }
*/
@Override
public Expression getReliefFactor() {
return relief;
}
/**
* {@inheritDoc }
*/
@Override
public Object accept(final StyleVisitor visitor, final Object extraData) {
return visitor.visit(this,extraData);
}
/**
* {@inheritDoc }
*/
@Override
public boolean equals(final Object obj) {
if(this == obj){
return true;
}
if(obj == null || !this.getClass().equals(obj.getClass()) ){
return false;
}
DefaultShadedRelief other = (DefaultShadedRelief) obj;
return this.bright == other.bright
&& this.relief.equals(other.relief);
}
/**
* {@inheritDoc }
*/
@Override
public int hashCode() {
return Boolean.valueOf(bright).hashCode() + relief.hashCode() ;
}
/**
* {@inheritDoc }
*/
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append("[ShadedRelief : Bright=");
builder.append(bright);
builder.append(" Factor=");
builder.append(relief);
builder.append(']');
return builder.toString();
}
}