src/objects/astro_object.h

   1 /*
   2  * Copyright (C) 2008 Liam Girdwood
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifndef __ASTRO_OBJECT_H
  21 #define __ASTRO_OBJECT_H
  22
  23 #include <libastrodb/astrodb.h>
  24 #include <glib-2.0/glib.h>
  25 #include "render.h"
  26
  27 #define noffset(x,y) (long)(&((x*)0)->y)        /* offset in struct */
  28 #define nsizeof(x,y) sizeof(((x*)0)->y)         /* size in struct */
  29 #define nsize(x) (sizeof(x)/sizeof(x[0]))       /* array size */
  30
  31 enum object_type
  32 {
  33         OT_STAR = 0,
  34         OT_SOLAR,
  35         OT_LUNAR,
  36         OT_PLANET,
  37 };
  38
  39 struct astro_object {
  40         gchar  *type;
  41         gint (*init)(struct astrodb_table *table);
  42         void (*free)(struct astrodb_table *table);
  43         void (*render)(struct render_object *r);
  44         gint (*info)(void *object, GList *info);
  45 };
  46
  47 #endif