import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;

abstract class Figure {
	protected int x, y, width, height,start,end;
	protected Color color;

	public Figure(int x,int y,int w,int h,Color c) {
		this.x = x; this.y = y;
		width = w; height = h;
		color = c;
		}

	public void setSize(int w, int h) {
		width = w; height = h;
		}

	public void setLocation(int x, int y) {
		this.x = x; this.y = y;
		}

	abstract public void reshape(int x1,int y1,int x2,int y2);
	abstract public void paint(Graphics g);
}

class RectangleFigure extends Figure {

	public RectangleFigure(int x, int y, int w, int h, Color c) {
		super(x, y, w, h, c);
		}

	public void reshape(int x1,int y1,int x2,int y2) {
		x = Math.min(x1, x2);
		y = Math.min(y1, y2);
		width = Math.abs(x1 - x2);
		height = Math.abs(y1 - y2);
		}

	public void paint(Graphics g) {
		g.setColor(color);
		g.drawRect(x, y, width, height);
	}
}

class fRectangleFigure extends Figure {

	public fRectangleFigure(int x, int y, int w, int h, Color c) {
		super(x, y, w, h, c);
		}

	public void reshape(int x1,int y1,int x2,int y2) {
		x = Math.min(x1, x2);
		y = Math.min(y1, y2);
		width = Math.abs(x1 - x2);
		height = Math.abs(y1 - y2);
		}

	public void paint(Graphics g) {
		g.setColor(color);
		g.fillRect(x, y, width, height);
		}
}

class OvalFigure extends Figure{

	public OvalFigure(int x, int y, int w, int h, Color c) {
		super(x, y, w, h, c);
		}

	public void reshape(int x1,int y1,int x2,int y2) {
		x = Math.min(x1, x2);
		y = Math.min(y1, y2);
		width = Math.abs(x1 - x2);
		height = Math.abs(y1 - y2);
		}

	public void paint(Graphics g) {
		g.setColor(color);
		g.drawOval(x, y, width, height);
		}
}

class fOvalFigure extends Figure {
	public fOvalFigure(int x,int y,int w,int h,Color c){
		super(x, y, w, h, c);
	}
	
	public void reshape(int x1,int y1,int x2,int y2){
		x = Math.min(x1, x2);
		y = Math.min(y1, y2);
		width = Math.abs(x1 - x2);
		height = Math.abs(y1 - y2);
	}
	
	public void paint(Graphics g){
		g.setColor(color);
		g.fillOval(x, y, width, height);
	}
}

class LineFigure extends Figure {
	public LineFigure(int x,int y,int w,int h,Color c){
		super(x, y, w, h, c);
	}
	
	public void reshape(int x1,int y1,int x2,int y2){
		x = x1;
		y = y1;
		width = x2;
		height = y2;
	}
	
	public void paint(Graphics g){
		g.setColor(color);
		g.drawLine(x, y, width, height);
	}
}

class DrawApplication {
	protected Vector<Figure> figures;
	protected Figure drawingFigure;
	protected Color currentColor;
	protected DrawPanel drawPanel;
	boolean fill = false;
	boolean rect = true;
	boolean oval = false;
	boolean line = false;

	public DrawApplication() {
		figures = new Vector<Figure>();
		drawingFigure = null;
		currentColor = Color.red;
		}

	public void setDrawPanel(DrawPanel c) {
		drawPanel = c;
		}

	public int getNumberOfFigures() {
		return figures.size();
		}

	public Figure getFigure(int index) {
		return (Figure)figures.elementAt(index);
		}

	public void createFigure(int x, int y) {

		Figure f = null;
		
		if(rect==true){
			if(fill==false) f = new RectangleFigure(x, y, 0, 0, currentColor);
			else f = new fRectangleFigure(x, y, 0, 0, currentColor);
		}
		else if(oval==true){
			if(fill==false) f = new OvalFigure(x, y, 0, 0, currentColor);
			else f = new fOvalFigure(x, y, 0, 0, currentColor);
		}
		else if(line==true){
			f = new LineFigure(x, y, x, y, currentColor);
		}

		figures.addElement(f);
		drawingFigure = f;
		drawPanel.repaint();
		}
	

	public void reshapeFigure(int x1,int y1,int x2,int y2) {
		if (drawingFigure != null) {
			drawingFigure.reshape(x1, y1, x2, y2);
			drawPanel.repaint();
		}
	}
	
	public void setColor(Color c){
		currentColor = c;
		}

	public Color getColor(){
		return currentColor;
		}
	
	public void pRect(){
		rect = true;
		oval = false;
		line = false;
		}
	
	public void pOval(){
		rect = false;
		oval = true;
		line = false;
		}
	
	public void pLine(){
		rect = false;
		oval = false;
		line = true;
		}
	
	public void pfill(){
		fill = !fill;
	}
	
	public void allclear(){
		figures = new Vector<Figure>();
		drawingFigure = null;
		drawPanel.repaint();
		currentColor = Color.red;
	}
}

class DrawPanel extends JPanel {
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	protected DrawApplication drawApplication;

	public DrawPanel(DrawApplication app) {
		setBackground(Color.white);
		drawApplication = app;
		}

	public void paintComponent(Graphics g) {
		super.paintComponent(g);

		for(int i = 0;i < drawApplication.getNumberOfFigures(); i++){
			Figure f = drawApplication.getFigure(i);
			f.paint(g);
		}
	}
}

class DrawMouseListener implements MouseListener,MouseMotionListener {
	protected DrawApplication drawApplication;
	protected int dragStartX,dragStartY;

	public DrawMouseListener(DrawApplication a) {
		drawApplication = a;
		}

	public void mouseClicked(MouseEvent e) { }

	public void mousePressed(MouseEvent e) {
		dragStartX = e.getX(); dragStartY = e.getY();
		drawApplication.createFigure(dragStartX, dragStartY);
		}

	public void mouseReleased(MouseEvent e) {
		drawApplication.reshapeFigure(dragStartX,dragStartY,e.getX(),e.getY());
		}

	public void mouseEntered(MouseEvent e) { }

	public void mouseExited(MouseEvent e) { }

	public void mouseDragged(MouseEvent e) {
		drawApplication.reshapeFigure(dragStartX,dragStartY,e.getX(),e.getY());
		}

	public void mouseMoved(MouseEvent e) { }
}

class DrawMain {
	public static void main(String argv[]) {
		JFrame f = new JFrame("Draw");
		
		final DrawApplication app = new DrawApplication();
		DrawPanel c =new DrawPanel(app);
		DrawMouseListener dm = new DrawMouseListener(app);
		c.addMouseListener(dm);
		c.addMouseMotionListener(dm);
		app.setDrawPanel(c);

		JPanel p = new JPanel();
		JPanel p2 = new JPanel();
		
		final JButton cc = new JButton("�F(�Ô¥—Î¥�Â)");
		final JButton fc = new JButton("˜g�Ì“h‚è‚‚Ԃµ");
		final JButton ac = new JButton("‘S�Á‚µ");
		final JButton rtc = new JButton("ŽlŠp");
		final JButton otc = new JButton("‘ȉ~");
		final JButton ltc = new JButton("�ü");
		
		cc.setForeground(app.getColor());
		
		p.add(cc);
		p.add(fc);
		p.add(ac);
		p2.add(rtc);
		p2.add(otc);
		p2.add(ltc);

		cc.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				if (app.getColor() == Color.red){
					app.setColor(Color.green);
					}else if(app.getColor() == Color.green){
						app.setColor(Color.blue);
					}else if(app.getColor() == Color.blue){
						app.setColor(Color.red);
					}
				cc.setForeground(app.getColor());
				if(app.fill==true) fc.setForeground(app.getColor());
				else fc.setForeground(Color.black);
			}
			});
		
		fc.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				app.pfill();
				fc.setForeground(app.getColor());
				if(app.fill==false) fc.setForeground(Color.black);
			}
			});
		
		ac.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				app.allclear();
				if(app.fill==true) app.pfill();
				fc.setForeground(Color.black);
				cc.setForeground(app.getColor());
				}
			});
		
		rtc.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				app.pRect();
				}
			});
		
		otc.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				app.pOval();
				}
			});
		
		ltc.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				app.pLine();
				}
			});

		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		f.getContentPane().add(p, BorderLayout.NORTH);
		f.getContentPane().add(c, BorderLayout.CENTER);
		f.getContentPane().add(p2, BorderLayout.SOUTH);
		f.setSize(400,300);
		f.setVisible(true);
	}
}