package de.laures.cewolf.taglib;

import java.io.Serializable;

import java.util.ArrayList;

import java.util.List;

import org.jfree.chart.JFreeChart;

import org.jfree.chart.plot.DefaultDrawingSupplier;

import org.jfree.chart.plot.DrawingSupplier;

import de.laures.cewolf.ChartValidationException;

import de.laures.cewolf.DatasetProduceException;

/**

 * Chart definition subclass to handle combined charts

 *

 * @author guido

 * @author tbardzil

 */

public class CombinedChartDefinition extends AbstractChartDefinition implements Serializable {

    private String layout;

    private List plotDefinitions = new ArrayList();

    private transient DrawingSupplier drawingSupplier = new DefaultDrawingSupplier();

    public void setLayout(String layout) {

        this.layout = layout;

    }

    public Object getDataset() throws DatasetProduceException {

        return ((PlotDefinition)plotDefinitions.get(0)).getDataset();

    }

    public void addPlot(PlotDefinition pd) {

        pd.setDrawingSupplier(drawingSupplier);

        plotDefinitions.add(pd);

    }

    protected JFreeChart produceChart() throws DatasetProduceException, ChartValidationException {

        return CewolfChartFactory.getCombinedChartInstance(type, title, xAxisLabel, yAxisLabel, plotDefinitions, layout);

    }

}