/*
 * ConstructView.java
 * 
 * Copyright (C) 1996 :)uane Steward <duane@mit.edu>.
 */

import java.awt.*;
import java.lang.*;

public class constructview3_1 extends java.applet.Applet{

	public int construct_position_x = 125, construct_position_y = 30;	
	Construct root = new Construct("Healthy", "Unhealthy");
	public int widthh, heightt, halfwidth = 80;
	Label Title_label;

	public void init() {
        try {
        	this.setLayout(new BorderLayout());
        	Title_label = new Label("Constructus \"Image\" Structure ",
        													Label.CENTER);
        	add("North", Title_label);
        	add("East", new Scrollbar(Scrollbar.VERTICAL, 1, 0, 0, 100));
        	add("South", new Scrollbar(Scrollbar.HORIZONTAL, 50, 0, 0, 100));
        	root.insert_sibling("Does Not Smoke","Smokes");
        	root.insert_sibling("More Exercise","Less Exercise");
        	root.insert_sibling("Normal Breathing","Coughing");
        	root.insert_sibling("Younger","Older");
        	root.insert_sibling("High Energy","Less Energy");
        } catch (ConstructFoundException e) {
			Title_label = new Label(e.toString());
        } catch (ConstructError e) {
			Title_label = new Label(e.toString());
        	}
        widthh = root.width * halfwidth * 2 + 60;
        heightt = root.branch_depth * 30 + 70;
        resize(widthh, heightt);
		construct_position_x = root.width * halfwidth + 20;
		construct_position_y = 25;
   }

	public boolean handleEvent(Event evt) {
		if (evt.target instanceof Scrollbar) {
	    	switch (((Scrollbar)evt.target).getOrientation()) {
	    		case Scrollbar.VERTICAL:
					int v =  ((Scrollbar)evt.target).getValue();
					construct_position_y = 25 - (v * (heightt - 70)/100);
					repaint();   // calls update method of applet class which refills entire panel w/ bkgd
					break;
	    		case Scrollbar.HORIZONTAL:
					int h =  ((Scrollbar)evt.target).getValue();
					construct_position_x = ((h * widthh - 60)/ 100) - 10;
					repaint();   // calls update method of applet class which refills entire panel w/ bkgd
					break;
				};
			};
		return true;
		}

	public void update(Graphics g) { // overwrite the update to selectively repaint bkgd
		g.setColor(getBackground());
//		g.fillRect(5, 5, Math.min(widthh - 26,574), heightt - 26);
		g.fillRect(0, 0, widthh - 20, heightt - 40);
		g.setColor(getForeground());
		paint(g);
		}

 	public void paint(Graphics g) {
		try {
			root.draw(construct_position_x, construct_position_y, g);
//			g.setColor(getBackground());
//			g.fillRect(0, 0, widthh, 1);
//			for (int n = 2; n < 5; n +=1) {
//				g.setColor(Color.gray);
//				g.drawLine(0+n,0+n,Math.min(widthh -17-n,600-17-n), 0+n);
//				g.drawLine(0+n,0+n,0+n,heightt - 17-n);
//				g.setColor(Color.darkGray);
//				g.drawLine(Math.min(widthh -17-n,600-17-n),
//							0+n,Math.min(widthh -17-n,600-17-n),heightt - 17-n);
//				g.drawLine(0+n,heightt - 17-n,
//							Math.min(widthh -17-n,600-17-n), heightt - 17-n);
//				};
//				g.setColor(Color.black);
//				g.draw3DRect(0+n,0+n,
//					Math.min(widthh -17-2*n,600-17-2*n),heightt - 17-2*n,false);
			}
		catch (Exception e) {
			g.drawString("Method constructview.paint(g) failed " + e, 10,10);
		}
	}
}