/*
 * see programm avab eraldi joonistusakna ning laseb eri värvidega joonistada
 * sirgeid ja vabakäejooni
 *  
 */

import java.awt.event.*;
import java.awt.*;
import java.awt.image.*;
import java.applet.*;
import java.util.Vector;
import com.sun.image.codec.jpeg.*; //- jpeg algoritmi laadimine
import java.io.*; //- input/output mooduli laadimine

public class joonistus1 extends Applet{
    DrawPanel panel;
    DrawControls controls;

    public void init() {
	setLayout(new BorderLayout());
	panel = new DrawPanel();
    controls = new DrawControls(panel); //-controls joonistatakse panel sisse
	add("Center", panel);
	add("North",controls);
    } //- end init

    public void destroy() {
        remove(panel);
        remove(controls);
    } //-end destroy

    public static void main(String args[]) {
	Frame f = new Frame("joonistus1");
	joonistus1 drawTest = new joonistus1();
	drawTest.init(); //-veebilehel kuvamiseks
	drawTest.start();

	f.add("Center", drawTest);
	f.setSize(500, 500);
	f.show();
    } //- end main

} //-end public class

/** eraldi klass p6hja joonistamiseks */
class DrawPanel extends Panel implements MouseListener, MouseMotionListener {
    public static final int LINES = 0; //- LINES v22rtus 0
    public static final int POINTS = 1; //- POINTS v22rtus 1
    int	   mode = LINES; //-mode defineeritakse siin
    Vector lines = new Vector();
    Vector colors = new Vector();
    int x1,y1;
    int x2,y2;

    public DrawPanel() {
	setBackground(Color.white);
	addMouseMotionListener(this);
	addMouseListener(this);
    } //- end DrawPanel

    /** joonistuse kujundi seadmiseks */
    public void setDrawMode(int mode) { //- mode v22rtust kasutatakse siin
	    switch (mode) {
	        case LINES:
	        case POINTS:
	        this.mode = mode;
	        break;
	    default:
	    throw new IllegalArgumentException();
	} //-end switch
    } //-end setDrawMode

    /** hiire vedamise peale reageerimine */
    public void mouseDragged(MouseEvent e) {
        e.consume();
        switch (mode) {
            case LINES:
                x2 = e.getX();
                y2 = e.getY();
                break;
            case POINTS:
            default:
                colors.addElement(getForeground());
                lines.addElement(new Rectangle(x1, y1, e.getX(), e.getY()));
                x1 = e.getX();
                y1 = e.getY();
                break;
        } //-end switch
        repaint();
    } //- end mouseDragged

    public void mouseMoved(MouseEvent e) {}

    //- hiire kliki peale reageerimine */
    public void mousePressed(MouseEvent e) {
        e.consume();
        switch (mode) {
            case LINES:
                x1 = e.getX();
                y1 = e.getY();
                x2 = -1;
                break;
            case POINTS:
            default:
                colors.addElement(getForeground());
                lines.addElement(new Rectangle(e.getX(), e.getY(), -1, -1));
                x1 = e.getX();
                y1 = e.getY();
                repaint();
                break;
        } //-end switch
    } //- end mousePressed

    /** nupu lahtilaskmise peale reageerimine */
    public void mouseReleased(MouseEvent e) {
        e.consume();
        switch (mode) {
            case LINES:
                colors.addElement(getForeground());
                lines.addElement(new Rectangle(x1, y1, e.getX(), e.getY()));
                x2 = -1;
                break;
            case POINTS:
            default:
                break;
        } //-end switch
        repaint();
    } //-end mouseReleased

    public void mouseEntered(MouseEvent e) {}
    public void mouseExited(MouseEvent e) {}
    public void mouseClicked(MouseEvent e) {}

    public void paint(Graphics g) {
	int np = lines.size(); //- np = ?

	/* draw the current lines */
	g.setColor(getForeground());
	for (int i=0; i < np; i++) {
	    Rectangle p = (Rectangle)lines.elementAt(i);
	    g.setColor((Color)colors.elementAt(i));
	    if (p.width != -1) {
		g.drawLine(p.x, p.y, p.width, p.height);
	    } else {
		g.drawLine(p.x, p.y, p.x, p.y);
	    } //-end if
	} //-end for
	if (mode == LINES) { //-if_1
	    g.setColor(getForeground());
	    if (x2 != -1) { //-if_2
                g.drawLine(x1, y1, x2, y2);
	    } //-end if_2
	} //-end if_1
    } //-end paint
} //-end class DrawPanel


class DrawControls extends Panel implements ItemListener {
    DrawPanel target;

    public DrawControls(DrawPanel target) {
	this.target = target;
	setLayout(new FlowLayout());
	setBackground(Color.lightGray);
	target.setForeground(Color.red);            //-miks see siin on?
	CheckboxGroup group = new CheckboxGroup();  
	Checkbox b;
	add(b = new Checkbox(null, group, false));  //-punane
	b.addItemListener(this);
	b.setForeground(Color.red);
	add(b = new Checkbox(null, group, false));  //-roheline
	b.addItemListener(this);
	b.setForeground(Color.green);
	add(b = new Checkbox(null, group, false));  //-sinine
	b.addItemListener(this);
	b.setForeground(Color.blue);
	add(b = new Checkbox(null, group, false));  //-roosa
	b.addItemListener(this);
	b.setForeground(Color.yellow);
	add(b = new Checkbox(null, group, true));   //-must (default)
	b.addItemListener(this);
	b.setForeground(Color.black);
	target.setForeground(b.getForeground());    //-seab joonistusv2rvi
	Choice shapes = new Choice();               //-kujundi valiku seadmine
	shapes.addItemListener(this);
	shapes.addItem("Sirged");
	shapes.addItem("Vabalt");
	shapes.setBackground(Color.lightGray);
	add(shapes);
	Button salvestusnupp=new Button("Salvesta");
	Button lugemisnupp=new Button("Loe failist");
	add(salvestusnupp);
      add(lugemisnupp);
      //salvestusnupp.addItemListener(this);
	//lugemisnupp.addItemListener(this);
    } //-end DrawControls

    public void paint(Graphics g) {
	Rectangle r = getBounds();
	g.setColor(Color.lightGray);
	g.draw3DRect(0, 0, r.width, r.height, false);

        int n = getComponentCount();
        for(int i=0; i<n; i++) {
            Component comp = getComponent(i);
            if (comp instanceof Checkbox) {
                Point loc = comp.getLocation();
                Dimension d = comp.getSize();
                g.setColor(comp.getForeground());
                g.drawRect(loc.x-1, loc.y-1, d.width+1, d.height+1);
            } //-end if
        } //-end for
    } //-end paint

  public void itemStateChanged(ItemEvent e) {
    if (e.getSource() instanceof Checkbox) { //-if_1
      target.setForeground(((Component)e.getSource()).getForeground());
    } else if (e.getSource() instanceof Choice) {
      String choice = (String) e.getItem();
      if (choice.equals("Sirged")) { //-if_2
	target.setDrawMode(DrawPanel.LINES);
      } else if (choice.equals("Vabalt")) {
	target.setDrawMode(DrawPanel.POINTS);
      } //-end if_2
    } //-end if_1
/*
  public void actionPerformed(ActionEvent e){
    try{
	if(e.getSource()==lugemisnupp){
		Image failipilt=Toolkit.getDefaultToolkit().getImage("pilt1.jpg");
		MediaTracker md=new MediaTracker(this);
		md.addImage(failipilt, 0);
		md.waitForAll();
		piltg.drawImage(failipilt, 0, 0, this);
		repaint();
	} //-end end if
	if(e.getSource()==salvestusnupp){
		FileOutputStream fos=new FileOutputStream("pilt1.jpg");
		JPEGCodec.createJPEGEncoder(fos).encode(pilt);
		fos.close();
	} //- end if

	}catch(Exception ex){
		ex.printStackTrace();
	} //- end try/catch
  } //- end actionPerformed()
*/
  } //-end DrawControls
} //-end class DrawControls