src/adg/adg-utils.h

   1 /* ADG - Automatic Drawing Generation
   2  * Copyright (C) 2007-2021  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_DIR_RIGHT           0.
  31 #define ADG_DIR_DOWN            G_PI_2
  32 #define ADG_DIR_LEFT            G_PI
  33 #define ADG_DIR_UP              -G_PI_2
  34
  35 #define ADG_UTF8_DIAMETER       "\xC3\xB8"
  36 #define ADG_UTF8_DEGREE         "\xC2\xB0"
  37
  38
  39 G_BEGIN_DECLS
  40
  41 #if GLIB_CHECK_VERSION(2, 54, 0)
  42 #else
  43 GObject *               g_object_new_with_properties
  44                                                 (GType           object_type,
  45                                                  guint           n_properties,
  46                                                  const char     *names[],
  47                                                  const GValue    values[]);
  48 #endif
  49
  50 gboolean                adg_is_string_empty     (const gchar    *str);
  51 gboolean                adg_is_enum_value       (int             value,
  52                                                  GType           enum_type);
  53 gboolean                adg_is_boolean_value    (gboolean        value);
  54 gchar *                 adg_string_replace      (const gchar    *str,
  55                                                  const gchar    *from,
  56                                                  const gchar    *to);
  57 gchar *                 adg_find_file           (const gchar    *file,
  58                                                  ...);
  59 gdouble                 adg_scale_factor        (const gchar    *scale);
  60 cairo_surface_type_t    adg_type_from_filename  (const gchar    *file);
  61 GObject *               adg_object_clone        (GObject        *src);
  62 void                    adg_nop                 (void);
  63 gdouble                 adg_round               (gdouble         value,
  64                                                  gint            decimals);
  65 const gchar *           adg_unescaped_strchr    (const gchar    *string,
  66                                                  gint            ch);
  67
  68 G_END_DECLS
  69
  70
  71 #endif /* __ADG_UTILS_H__ */