#ifndef GLWIDGET_H
#define GLWIDGET_H

#include <gtkmm/gl/drawingarea.h>

class SierpinskiDA : public Gtk::GL::DrawingArea
{
    public:
        SierpinskiDA(const Glib::RefPtr<const Gdk::GL::Config> & config,
                Gtk::Entry & n_points_entry);
        void regenerate(int npts);
        void regenerate_clicked();

    protected:
        int m_x, m_y;
        int m_dl;
        Gtk::Entry & m_n_points_entry;

        virtual bool draw();
        virtual void on_realize();
        virtual bool on_configure_event(GdkEventConfigure * event);
        virtual bool on_expose_event(GdkEventExpose * event);
        bool gl_begin();
        void gl_end();

        /* signal handlers */
        virtual bool on_motion_notify_event(GdkEventMotion * event);
        virtual bool on_button_press_event(GdkEventButton * event);
        virtual bool on_button_release_event(GdkEventButton * event);
        virtual bool on_scroll_event(GdkEventScroll * event);
};

#endif