src/adg/adg-utils.h

   1 /* ADG - Automatic Drawing Generation
   2  * Copyright (C) 2007,2008,2009,2010,2011,2012  Nicola Fontana <ntd at entidi.it>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library 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 GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301, USA.
  18  */
  19
  20
  21 #if !defined(__ADG_H__)
  22 #error "Only <adg.h> can be included directly."
  23 #endif
  24
  25
  26 #ifndef __ADG_UTILS_H__
  27 #define __ADG_UTILS_H__
  28
  29
  30 #define ADG_FORWARD_DECL(id)    typedef struct _##id id
  31
  32 #define ADG_DIR_RIGHT           0.
  33 #define ADG_DIR_DOWN            G_PI_2
  34 #define ADG_DIR_LEFT            G_PI
  35 #define ADG_DIR_UP              -G_PI_2
  36
  37 #define ADG_UTF8_DIAMETER       "\xE2\x8C\x80"
  38 #define ADG_UTF8_DEGREE         "\xC2\xB0"
  39
  40
  41 G_BEGIN_DECLS
  42
  43 typedef struct _AdgClosure        AdgClosure;
  44
  45
  46 struct _AdgClosure {
  47     GCallback       callback;
  48     gpointer        user_data;
  49 };
  50
  51
  52 #if GLIB_MINOR_VERSION < 16
  53 gint            g_strcmp0               (const gchar    *s1,
  54                                          const gchar    *s2);
  55 #endif
  56
  57 gboolean        adg_is_string_empty     (const gchar    *str);
  58 gboolean        adg_is_enum_value       (int             value,
  59                                          GType           enum_type);
  60 gboolean        adg_is_boolean_value    (gboolean        value);
  61 gchar *         adg_string_replace      (const gchar    *str,
  62                                          const gchar    *from,
  63                                          const gchar    *to);
  64 gchar *         adg_find_file           (const gchar    *file,
  65                                                          ...);
  66 const gchar *   adg_datadir             (void);
  67
  68 G_END_DECLS
  69
  70
  71 #endif /* __ADG_UTILS_H__ */