import java.awt.*;
import java.awt.event.*;
import java.text.*;
//import java.io.*;

class MousePositionAdapter extends MouseMotionAdapter {

    private double cursorX = 0;
    private double cursorY = 0;

    private GraphPanel graphPanel = null;
    private TextField cursorFieldX; 
    private TextField cursorFieldY;

    //    PrintWriter printlog = new PrintWriter(System.out, true);

    public MousePositionAdapter( 
        GraphPanel graphPanelIn, 
        TextField cursorFieldXIn, 
        TextField cursorFieldYIn
        ){
	graphPanel = graphPanelIn;
        cursorFieldX = cursorFieldXIn;
        cursorFieldY = cursorFieldYIn;
    }

    public void mouseMoved(MouseEvent e) {

	if ( graphPanel == null ) 
	    return;

	    int cursorPixelX = e.getX();
            cursorX = graphPanel.xPixelToValue( cursorPixelX );
	    NumberFormat cursorOutputX = new DecimalFormat("#####0.0");
            cursorFieldX.setText( " " + 
	        cursorOutputX.format( cursorX ) ); 

	    int cursorPixelY = e.getY();
	    cursorY = graphPanel.yPixelToValue( cursorPixelY );
	    NumberFormat cursorOutputY = new DecimalFormat("###0.000");
	    cursorFieldY.setText( " " + 
                cursorOutputY.format( cursorY ) ); 

    }

    public void mouseDragged(MouseEvent e) { }

}