import java.awt.*;

class Control extends Panel {
    MyCanvas canvas;

    Control(MyCanvas canvas) {
        setLayout(new FlowLayout(FlowLayout.CENTER, 10, 10));
        this.canvas = canvas;
        add(new Button("Fast"));
        add(new Button("Slow"));
    }

    //---------------------------------------------------------------------
    //void init() {
    //    addNotify();
    //    resize(preferredSize());
    //}

    //---------------------------------------------------------------------
    public boolean action(Event ev, Object arg) {
        if (ev.target instanceof Button) {
            if ("Fast".equals(arg)) {
                canvas.goFast();
            } else /*if ("Slow".equals(arg))*/ {
                canvas.goSlow();
            }
            return true;
        }
        return false;
    }
}