package jas2.hist;

import jas2.plot.CoordinateTransformation;
import jas2.plot.DateCoordinateTransformation;
import jas2.plot.DoubleCoordinateTransformation;
import jas2.plot.MutableLegendEntry;
import jas2.plot.Overlay;
import jas2.plot.PlotGraphics;
import jas2.plot.Transformation;

import java.awt.BasicStroke;
import java.io.IOException;
import java.io.Serializable;
import java.util.Observable;


public class JASHist1DFunctionData extends JASHistData implements Serializable
{
    
    private double lowerBound = Double.NaN;
    private double upperBound = Double.NaN;
    
    public JASHist1DFunctionData(DataManager parent, Basic1DFunction ds)
    {
        super(parent);
        dataSource = ds;
        
        style = new JASHist1DFunctionStyle();
        style.addObserver(this);
    }
    public void setStyle(JASHistStyle style)
    {
        if (!(style instanceof JASHist1DFunctionStyle))
            throw new IllegalArgumentException("Style is not subclass of JASHist1DFunctionStyle");
        if (this.style != null) this.style.deleteObserver(this);
        this.style = (JASHist1DFunctionStyle) style;
        style.addObserver(this);
    }
    public void update (Observable o, Object arg)
    {
        // Dragons: Likely to be called by different thread
        if (o == dataSource) ((SupportsFunctions) parent).update(this);
        else if (o == style) ((SupportsFunctions) parent).update(this); // overkill, we really just need a repaint
    }
    public void axisChanged()
    {
        ((SupportsFunctions) parent).update(this);
    }
    
    public void setXBounds(double xmin, double xmax) {
        this.lowerBound = xmin;
        this.upperBound = xmax;
    }
    
    void setXRange(double xmin, double xmax)
    {
        if ( ! Double.isNaN(lowerBound) )
            xmin = xmin < lowerBound ? lowerBound : xmin;
        if ( ! Double.isNaN(upperBound) )
            xmax = xmax > upperBound ? upperBound : xmax;
        if ( xmin > xmax )
            xmin = xmax;
        if (overlay instanceof JASHistFunctionOverlay) ((JASHistFunctionOverlay) overlay).setXRange(xmin,xmax);
    }
    public String getTitle()
    {
        return dataSource.getTitle();
    }
    Overlay createOverlay()
    {
        return new JASHistFunctionOverlay(this,style);
    }
    public JASHistStyle getStyle()
    {
        return style;
    }
    public DataSource getDataSource()
    {
        return dataSource;
    }
    void normalizationChanged(boolean now)
    {
    }
    public void writeAsXML(XMLPrintWriter pw, boolean snapshot)
    {
        pw.setAttribute("axis","y"+getYAxis());
        //TODO: getTitle is not correct, fix this
        pw.setAttribute("type",dataSource.getTitle());
        pw.openTag("function1d");
        
        String[] pNames = dataSource.getParameterNames();
        double[] pValue = dataSource.getParameterValues();
        for (int i=0; i (width/2)) flw = (width > 2) ? (float) (width/2 -1) : 1;
        BasicStroke s = new BasicStroke(flw,BasicStroke.CAP_SQUARE,BasicStroke.JOIN_ROUND,10,lineStyles[style.getLineStyle()],0);
        g.setStroke(s);
        g.setStroke(s);
        g.drawLine(1, height/2, width-2, height/2);
        g.setStroke(null);
    }
    
    private JASHist1DFunctionStyle style;
    private JASHist1DFunctionData source;
    private double xmin, xmax;
}