import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Diese Klasse stellt einen Button dar.
 * 
 * @author Felix Stupp
 * @version 26.04.2016
 */
public class Button extends GUI_Interface {
    
    boolean autoSize = true;
    Color foreC = Color.WHITE
    Color backC = Color.BLACK
    int textSize = 1;
    String text = "";
    
    ButtonEvent handler;
    
    /**
     * Erstellt einen Button mit dem gegebenen Objekt als Event-Handler.
     * 
     * @param h Der Handler mit dem Interface ButtonEvent implementiert.
     */
    public Button(ButtonEvent h) {
        handler = h;
    }
    
    /**
     * Fragt ab, ob ein Klick auf den Button gekommen ist.
     */
    public void act() {
        if(Greenfoot.mouseClicked(this)) {
            handler.buttonClicked(this);
        }
    }
    
    public boolean getAutoSize() {
        return autoSize;
    }
    
    public void setAutoSize(boolean b) {
        autoSize = b;
        if(autoSize) {
            redraw();
        }
    }
    
    public int getTextSize() {
        return textSize;
    }
    
    public void setTextSize(int s) {
        if(textSize != s && s > 0) {
            textSize = s;
            redraw();
        }
    }
    
    public String getText() {
        return text;
    }
    
    public void setText(String s) {
        if(text != s) {
            text = s;
            redraw();
        }
    }
    
    private void redraw() {
        GreenfootImage tI = new GreenfootImage(text,textSize,foreC,backC);
        GreenfootImage corner = new GreenfootImage("images/Button_Corner.png");
        int csx = corner.getWidth();
        int csy = corner.getHeight();
        GreenfootImage side = new GreenfootImage("images/Button_Side.png");
        if(autoSize) {
            sx = tI.getWidth() + (csx * 2);
            sy = tI.getHeight() + (csy * 2);
        }
        GreenfootImage all = new GreenfootImage(sx,sy);
        all.drawImage(corner,0,0);
        corner.rotate(90);
        all.drawImage(corner,sx-csx,0);
        corner.rotate(90);
        all.drawImage(corner,sx-csx,sy-csy);
        corner.rotate(90);
        all.drawImage(corner,0,sy-csy);
        for(int i = csx; i < (sx-csx+1); i++) {
            
        }
        all.drawImage(tI,(sx-tI.getWidth())/2,(sy-tI.getHeight())/2);
        setImage(all);
    }
}