package awb;

import java.awt.*;

/* PictureCanvas Class
 * Eric Jewart
 * 
 * This class is a Canvas so it can be used
 * as a component in any Java app.  It holds
 * a Picture object.  Double-clicking on the
 * PictureCanvas will spawn an ImageViewer.
 */


public class PictureCanvas extends Canvas
{
    private int WIDTH, HEIGHT;
    private Picture myPicture;
    private String myTitle;

    public PictureCanvas(int w, int h)
    {
	WIDTH = w;
	HEIGHT = h;
    }

    public Dimension preferredSize()
    {
	return new Dimension(WIDTH,HEIGHT);
    }

    public Dimension minimumSize()
    {
	return new Dimension(WIDTH,HEIGHT);
    }

    public void paint(Graphics g)
    {
	if (myPicture != null) myPicture.draw(g,0,0,this);
    }

    public Picture getPicture()
    {
	return myPicture;
    }

    public void setPicture(Picture p, String t)
    {
	myPicture = p;
	myTitle = t;
	repaint();
    }

    public void clear()
    {
	myPicture = null;
	repaint();
    }

    public boolean handleEvent(Event e)
    {
	if ((e.id == Event.MOUSE_DOWN) && (e.clickCount == 2))
	{
	    ImageViewer iv = new ImageViewer(myPicture, myTitle);
	    return true;
	}

	return super.handleEvent(e);
    }
}