package jp.ac.kyutech.mns.ist;


import java.awt.BasicStroke;
import java.awt.event.InputEvent;
import java.awt.geom.Point2D;

import jp.ac.kyutech.mns.ist.util.MouseWheelRotationListener;
import jp.ac.kyutech.mns.ist.util.WheelRotationHandler;


import edu.umd.cs.piccolo.PCanvas;
import edu.umd.cs.piccolo.PLayer;
import edu.umd.cs.piccolo.event.PBasicInputEventHandler;
import edu.umd.cs.piccolo.event.PDragSequenceEventHandler;
import edu.umd.cs.piccolo.event.PInputEvent;
import edu.umd.cs.piccolo.event.PInputEventFilter;
import edu.umd.cs.piccolo.nodes.PPath;
import edu.umd.cs.piccolox.PFrame;

/**
 * SimpleATNでは未使用．マウス手書き機能．Piccolo Java のサンプルほぼそのまま．
 * @author miuramo
 *
 */
public class SquiggleExample extends PFrame implements MouseWheelRotationListener {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    public PLayer layer;

    public SquiggleExample() {
        this(null);
    }

    public SquiggleExample(final PCanvas aCanvas) {
        super("SquiggleExample", false, aCanvas);
    }

    public void initialize() {
        super.initialize();
        final PBasicInputEventHandler squiggleEventHandler = createSquiggleEventHandler();
//        final PBasicInputEventHandler squiggleEventHandler = new SquiggleHandler(this);
        squiggleEventHandler.setEventFilter(new PInputEventFilter(InputEvent.BUTTON1_MASK));
//        getCanvas().removeInputEventListener(getCanvas().getPanEventHandler());
        getCanvas().addInputEventListener(squiggleEventHandler);
        getCanvas().removeInputEventListener(getCanvas().getZoomEventHandler());
        
        final WheelRotationHandler wrHandler = new WheelRotationHandler(getCanvas(), getCanvas().getCamera());
        wrHandler.setEventFilter(new PInputEventFilter(InputEvent.BUTTON2_MASK));
        getCanvas().addInputEventListener(wrHandler);
        
        
        getCanvas().getPanEventHandler().setEventFilter(new PInputEventFilter(InputEvent.BUTTON3_MASK));
        layer = getCanvas().getLayer();
    }

    public PBasicInputEventHandler createSquiggleEventHandler() {
        return new PDragSequenceEventHandler() {

            protected PPath squiggle;

            public void startDrag(final PInputEvent e) {
                super.startDrag(e);

                final Point2D p = e.getPosition();

                squiggle = new PPath();
                squiggle.moveTo((float) p.getX(), (float) p.getY());
                squiggle.setStroke(new BasicStroke((float) (1 / e.getCamera().getViewScale())));
                layer.addChild(squiggle);
            }

            public void drag(final PInputEvent e) {
                super.drag(e);
                updateSquiggle(e);
            }

            public void endDrag(final PInputEvent e) {
                super.endDrag(e);
                updateSquiggle(e);
                squiggle = null;
            }

            public void updateSquiggle(final PInputEvent aEvent) {
                final Point2D p = aEvent.getPosition();
                squiggle.lineTo((float) p.getX(), (float) p.getY());
            }
        };
    }

    public static void main(final String[] args) {
        new SquiggleExample();
    }

	@Override
	public void mouseWheelRotated(float f) {
		// TODO Auto-generated method stub
		
	}
}