uk.ac.rdg.resc.edal.graphics.style.MappedColourScheme Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of edal-graphics Show documentation
There is a newer version: 1.5.3
/*******************************************************************************
 * Copyright (c) 2015 The University of Reading
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University of Reading, nor the names of the
 *    authors or contributors may be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ******************************************************************************/

package uk.ac.rdg.resc.edal.graphics.style;

import java.awt.Color;
import java.util.Collections;
import java.util.Map;

import uk.ac.rdg.resc.edal.graphics.utils.GraphicsUtils;
import uk.ac.rdg.resc.edal.metadata.Parameter.Category;

public class MappedColourScheme extends ColourScheme {

    private Map colours;
    private Color bgColour;
    private float min;
    private float max;

    public MappedColourScheme(Map categories, Color bgColour) {
        this.colours = GraphicsUtils.getColourMapForCategories(categories);
        this.bgColour = bgColour;
        this.min = Collections.min(categories.keySet()).floatValue();
        this.max = Collections.max(categories.keySet()).floatValue();
    }

    @Override
    public Color getColor(Number value) {
        if(value == null || !colours.containsKey(value.intValue())) {
            return bgColour;
        } else {
            return colours.get(value.intValue());
        }
    }

    @Override
    public Float getScaleMin() {
        return min;
    }

    @Override
    public Float getScaleMax() {
        return max;
    }
}