import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class Hemtenta extends MIDlet implements CommandListener {
    private Display display;    
    private TextBox om_rutan =
	new TextBox("Om programmet",
		    "Hemtentan 31 maj 2008. " +
		    "Av Thomas Padron-McCarthy.", 100, TextField.ANY);
    private TreObjekt canvasen = new TreObjekt();

    private Form cirkelform = new Form("Cirkeln");
    private Gauge cirkel_x = new Gauge("X-position", true, canvasen.get_the_width(), canvasen.getCirkelX());
    private Gauge cirkel_y = new Gauge("Y-position", true, canvasen.get_the_height(), canvasen.getCirkelY());
    private Gauge cirkel_radie = new Gauge("Radie", true, 100, canvasen.getCirkelRadie());

    private Form triangelform = new Form("Triangeln");
    private Gauge triangel_x = new Gauge("X-position", true, canvasen.get_the_width(), canvasen.getTriangelX());
    private Gauge triangel_y = new Gauge("Y-position", true, canvasen.get_the_height(), canvasen.getTriangelY());
    private Gauge triangel_hojd = new Gauge("Höjd", true, 100, canvasen.getTriangelHojd());

    private Form kvadratform = new Form("Kvadraten");
    private Gauge kvadrat_x = new Gauge("X-position", true, canvasen.get_the_width(), canvasen.getKvadratX());
    private Gauge kvadrat_y = new Gauge("Y-position", true, canvasen.get_the_height(), canvasen.getKvadratY());
    private Gauge kvadrat_sida = new Gauge("Sida", true, 100, canvasen.getKvadratSida());

    private Command tillbaka_kommandot = new Command("Tillbaka", Command.BACK, 1);
    private Command avsluta_kommandot = new Command("Avsluta", Command.EXIT, 1);
    private Command om_kommandot = new Command("Om programmet", Command.SCREEN, 1);
    private Command cirkel_kommandot = new Command("Redigera cirkeln", Command.SCREEN, 1);
    private Command triangel_kommandot = new Command("Redigera triangeln", Command.SCREEN, 1);
    private Command kvadrat_kommandot = new Command("Redigera kvadraten", Command.SCREEN, 1);

    public Hemtenta() {
        om_rutan.addCommand(tillbaka_kommandot);
        om_rutan.addCommand(avsluta_kommandot);
	om_rutan.setCommandListener(this);
        canvasen.addCommand(om_kommandot);
        canvasen.addCommand(avsluta_kommandot);
        canvasen.addCommand(cirkel_kommandot);
        canvasen.addCommand(triangel_kommandot);
        canvasen.addCommand(kvadrat_kommandot);
	canvasen.setCommandListener(this);

	cirkelform.append(cirkel_x);
	cirkelform.append(cirkel_y);
	cirkelform.append(cirkel_radie);
        cirkelform.addCommand(tillbaka_kommandot);
	cirkelform.setCommandListener(this);

	triangelform.append(triangel_x);
	triangelform.append(triangel_y);
	triangelform.append(triangel_hojd);
        triangelform.addCommand(tillbaka_kommandot);
	triangelform.setCommandListener(this);

	kvadratform.append(kvadrat_x);
	kvadratform.append(kvadrat_y);
	kvadratform.append(kvadrat_sida);
        kvadratform.addCommand(tillbaka_kommandot);
	kvadratform.setCommandListener(this);
    }

    public void startApp() {
        display = Display.getDisplay(this);
        display.setCurrent(canvasen);
    }

    public void commandAction(Command kommandot, Displayable s) {
        if (kommandot == avsluta_kommandot) {
	    destroyApp(true);
            notifyDestroyed();
        }
        else if (kommandot == om_kommandot) {
            display.setCurrent(om_rutan);
        }
        else if (kommandot == tillbaka_kommandot) {
	    if (display.getCurrent() == cirkelform) {
		canvasen.setCirkelX(cirkel_x.getValue());
		canvasen.setCirkelY(cirkel_y.getValue());
		canvasen.setCirkelRadie(cirkel_radie.getValue());
	    }
	    else if (display.getCurrent() == triangelform) {
		canvasen.setTriangelX(triangel_x.getValue());
		canvasen.setTriangelY(triangel_y.getValue());
		canvasen.setTriangelHojd(triangel_hojd.getValue());
	    }
	    else if (display.getCurrent() == kvadratform) {
		canvasen.setKvadratX(kvadrat_x.getValue());
		canvasen.setKvadratY(kvadrat_y.getValue());
		canvasen.setKvadratSida(kvadrat_sida.getValue());
	    }
            display.setCurrent(canvasen);
        }
        else if (kommandot == cirkel_kommandot) {
	    cirkel_x.setValue(canvasen.getCirkelX());
	    cirkel_y.setValue(canvasen.getCirkelY());
	    cirkel_radie.setValue(canvasen.getCirkelRadie());
	    display.setCurrent(cirkelform);
        }
        else if (kommandot == triangel_kommandot) {
	    triangel_x.setValue(canvasen.getTriangelX());
	    triangel_y.setValue(canvasen.getTriangelY());
	    triangel_hojd.setValue(canvasen.getTriangelHojd());
	    display.setCurrent(triangelform);
        }
        else if (kommandot == kvadrat_kommandot) {
	    kvadrat_x.setValue(canvasen.getKvadratX());
	    kvadrat_y.setValue(canvasen.getKvadratY());
	    kvadrat_sida.setValue(canvasen.getKvadratSida());
	    display.setCurrent(kvadratform);
        }
    }

    public void destroyApp(boolean unconditional) { 

    }

    public void pauseApp() {

    }
} // Hemtenta