package elte.java2_utikalauz5.java2d;

import java.awt.*;
import java.awt.geom.*;
import java.awt.event.*;

/**
peldaprogram a konturok kezelesere.

@link.forrásfájl {@docRoot}/../data/java2d/src Kontur.java
@link.letöltés {@docRoot}/../data/java2d Kontur.jar
@since Java 2 Útikalauz programozóknak
*/
class Kontur extends Canvas implements ActionListener {
    /** Verziószám */
    private final static long serialVersionUID = 15L;

	Button gomb1 = new Button ("JOIN_MITER");
	Button gomb2 = new Button ("CAP_SQUARE");
	Button gomb3 = new Button ("Minta Ki");

	int joinStyle = BasicStroke.JOIN_MITER, endcapStyle = BasicStroke.CAP_BUTT;
	boolean mintaKell = true;

	public void initScreen () {
		Frame f = new Frame ();
		Panel p = new Panel ();

		p.setLayout (new FlowLayout ());
		p.add (gomb1);
		p.add (gomb2);
		p.add (gomb3);

		f.add (this);
		f.add ("South", p);

		gomb1.addActionListener (this);
		gomb2.addActionListener (this);
		gomb3.addActionListener (this);

		f.addWindowListener (
			new WindowAdapter () {
				public void windowClosing (WindowEvent e) {
					System.exit (0);
				}
			}
		);

		f.setSize (300, 300);
		f.setVisible (true);
	}

	public void paint (Graphics g) {
		Graphics2D g2 = (Graphics2D) g;
		float minta[] = {8.0f};
		BasicStroke bs;

		if (mintaKell == true)
			bs = new BasicStroke (5.0f, endcapStyle, joinStyle, 10.0f, minta, 0.0f);
		else
			bs = new BasicStroke (5.0f, endcapStyle, joinStyle);

		g2.setStroke (bs);
		g2.setColor (Color.blue);

		GeneralPath vBetu = new GeneralPath ();
		vBetu.append (new Line2D.Float (10.0f, 10.0f, 100.0f, 200.0f), true);
		vBetu.append (new Line2D.Float (100.0f, 200.0f, 190.0f, 10.0f), true);
		g2.draw (vBetu);
	}

	public static void main (String[] args) {
		Kontur k = new Kontur ();
		k.initScreen ();
	}

	public void actionPerformed (ActionEvent e) {
		if (e.getActionCommand ().compareTo ("JOIN_MITER") == 0) {
			joinStyle = BasicStroke.JOIN_ROUND;
			gomb1.setLabel ("JOIN_ROUND");
		} else
		if (e.getActionCommand ().compareTo ("JOIN_ROUND") == 0) {
			joinStyle = BasicStroke.JOIN_BEVEL;
			gomb1.setLabel ("JOIN_BEVEL");
		} else
		if (e.getActionCommand ().compareTo ("JOIN_BEVEL") == 0) {
			joinStyle = BasicStroke.JOIN_MITER;
			gomb1.setLabel ("JOIN_MITER");
		} else
		if (e.getActionCommand ().compareTo ("Minta Ki") == 0) {
			mintaKell = false;
			gomb3.setLabel ("Minta Be");
		} else
		if (e.getActionCommand ().compareTo ("Minta Be") == 0) {
			mintaKell = true;
			gomb3.setLabel ("Minta Ki");
		} else
		if (e.getActionCommand ().compareTo ("CAP_BUTT") == 0) {
			endcapStyle = BasicStroke.CAP_ROUND;
			gomb2.setLabel ("CAP_ROUND");
		} else
		if (e.getActionCommand ().compareTo ("CAP_ROUND") == 0) {
			endcapStyle = BasicStroke.CAP_SQUARE;
			gomb2.setLabel ("CAP_SQUARE");
		} else {
			endcapStyle = BasicStroke.CAP_BUTT;
			gomb2.setLabel ("CAP_BUTT");
		}

		repaint ();
	}

}