HGKeeper

#include <gtk/gtk.h>

#include <gtk/gtkgl.h>

#define DEFAULT_FRAME_DELAY 40

typedef void (gl_init_func) (GtkWidget *widget, void *data);

typedef gboolean (*gl_config_func) (GtkWidget *widget, GdkEventConfigure *event,

void *data);

typedef gboolean (*gl_draw_func) (GtkWidget *widget, GdkEventExpose *event,

void *data);

struct draw_info {

gboolean timeout; /* use/not use a timer callback */

int timer_id; /* glib timer callback id */

guint delay_ms; /* timer callback delay in ms */

void *data; /* drawing data */

};

struct window_box {

GtkWidget *window;

GtkWidget *vbox;

GtkWidget *draw_area;

};

/**

* Initialize the gtkglext framework for all our widgets.

* @return 0 on success, non-zero on failure

int cc_init_gtk_gl(void);

/**

* Create a new OpenGL enabled window

* @param init the initialize callback function

* @param draw the drawing callback function

* @param data drawing metadata

* @param ret struct with returned window and vbox

void cc_new_gl_window(gl_init_func init, gl_config_func config,

gl_draw_func draw, struct draw_info *data,

struct window_box *ret);

/**

* Create a new OpenGL enabled drawing area widget.

* @param init the initialize callback function

* @param draw the drawing callback function

* @param data drawing metadata

* @return the drawing widget

GtkWidget *cc_new_gl_area(gl_init_func init, gl_config_func config,

gl_draw_func draw, struct draw_info *data);