/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
 * Software engineering by Intevation GmbH
 *
 * This file is Free Software under the GNU AGPL (>=v3)
 * and comes with ABSOLUTELY NO WARRANTY! Check out the
 * documentation coming with Dive4Elements River for details.
 */

package org.dive4elements.river.exports;

import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.event.AxisChangeEvent;
import org.jfree.chart.event.AxisChangeListener;
import org.jfree.data.Range;

import org.apache.log4j.Logger;

/**
 * Axis which is to be registered with other axis and tries
 * to clone its range. The cloned range is transformed.
 * Keeps in sync via AxisChangedEvents.
 */
public class SyncNumberAxis extends IdentifiableNumberAxis
        implements AxisChangeListener
{
    /** The logger used in this generator. */
    private static Logger logger =
        Logger.getLogger(SyncNumberAxis.class);

    /** The other axis to clone range from. */
    protected NumberAxis proxyAxis;

    /** Value to translate range by. */
    protected double shift;


    public SyncNumberAxis(String key, String label, NumberAxis n) {
        super(key, label);
        this.proxyAxis = n;
    }


    /** Range of other axis changed, adjust own range. */
    @Override
    public void axisChanged(AxisChangeEvent event) {
        logger.debug("SyncNumberAxis: axischange event");
        this.setRange(
            transRange(((NumberAxis)event.getAxis()).getRange()));
    }

    /** Set value by which to translate the range. */
    public void setShift(double shift) {
        this.shift = shift;
    }


    /** Set other axis to relate to, register listener. */
    public void setProxyAxis(NumberAxis ax) {
        proxyAxis = ax;
        proxyAxis.addChangeListener(this);
    }

    /** Translate range by shift, scale by 100. */
    protected Range transRange(Range r) {
        return new Range(100d*(r.getLowerBound()+shift),
            100d*(r.getUpperBound()+shift));
    }

    /** Set Range. */
    @Override
    public void setRange(Range r) {
        super.setRange(r);
        logger.debug("SyncAxis: setRange");
    }


    /*
    @Override
    public Range getRange() {
        Range r = new Range(100d*(proxyAxis.getRange().getLowerBound()+shift),
            100d*(proxyAxis.getRange().getUpperBound()+shift));
        return r;
    }

    @Override
    public void setLowerBound(double max) {
    }

    @Override
    public void setLowerMargin(double margin) {
    }

    @Override
    public void setUpperBound(double max) {
    }

    @Override
    public void setUpperMargin(double margin) {
    }

    @Override
    public void setRange(double a, double b) {
    }

    @Override
    public void setRange(Range range, boolean turnOffAutoRange, boolean notify){
    }

    @Override
    public void setRangeAboutValue(double value, double length) {}

    @Override
    public void setRangeWithMargins(double lower, double upper) {}

    @Override
    public void setRangeWithMargins(Range range) {}

    @Override
    public void pan(double percent) {}

    @Override
    public void resizeRange(double p){}

    @Override
    public void resizeRange(double p, double a){}

    @Override
    public void resizeRange2(double p, double a){}

    */
}
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