src/misc.c

   1 /*
   2  * Geeqie
   3  * Copyright (C) 2008 The Geeqie Team
   4  *
   5  * Authors: Vladimir Nadvornik / Laurent Monin
   6  *
   7  * This software is released under the GNU General Public License (GNU GPL).
   8  * Please read the included file COPYING for more information.
   9  * This software comes with no warranty of any kind, use at your own risk!
  10  */
  11
  12 #include "main.h"
  13 #include "misc.h"
  14
  15 gdouble get_zoom_increment(void)
  16 {
  17         return ((options->image.zoom_increment != 0) ? (gdouble)options->image.zoom_increment / 10.0 : 1.0);
  18 }
  19
  20 gchar *utf8_validate_or_convert(const gchar *text)
  21 {
  22         gint len;
  23
  24         if (!text) return NULL;
  25
  26         len = strlen(text);
  27         if (!g_utf8_validate(text, len, NULL))
  28                 return g_convert(text, len, "UTF-8", "ISO-8859-1", NULL, NULL, NULL);
  29
  30         return g_strdup(text);
  31 }
  32
  33 gint utf8_compare(const gchar *s1, const gchar *s2, gboolean case_sensitive)
  34 {
  35         gchar *s1_key, *s2_key;
  36         gchar *s1_t, *s2_t;
  37         gint ret;
  38
  39         g_assert(g_utf8_validate(s1, -1, NULL));
  40         g_assert(g_utf8_validate(s2, -1, NULL));
  41
  42         if (!case_sensitive)
  43                 {
  44                 s1_t = g_utf8_casefold(s1, -1);
  45                 s2_t = g_utf8_casefold(s2, -1);
  46                 }
  47
  48         s1_key = g_utf8_collate_key(s1_t, -1);
  49         s2_key = g_utf8_collate_key(s2_t, -1);
  50
  51         ret = strcmp(s1_key, s2_key);
  52
  53         g_free(s1_key);
  54         g_free(s2_key);
  55
  56         if (!case_sensitive)
  57                 {
  58                 g_free(s1_t);
  59                 g_free(s2_t);
  60                 }
  61
  62         return ret;
  63 }
  64
  65 /* Borrowed from gtkfilesystemunix.c */
  66 gchar *expand_tilde(const gchar *filename)
  67 {
  68 #ifndef G_OS_UNIX
  69         return g_strdup(filename);
  70 #else
  71         const gchar *notilde;
  72         const gchar *slash;
  73         const gchar *home;
  74
  75         if (filename[0] != '~')
  76                 return g_strdup(filename);
  77
  78         notilde = filename + 1;
  79         slash = strchr(notilde, G_DIR_SEPARATOR);
  80         if (slash == notilde || !*notilde)
  81                 {
  82                 home = g_get_home_dir();
  83                 if (!home)
  84                         return g_strdup(filename);
  85                 }
  86         else
  87                 {
  88                 gchar *username;
  89                 struct passwd *passwd;
  90
  91                 if (slash)
  92                         username = g_strndup(notilde, slash - notilde);
  93                 else
  94                         username = g_strdup(notilde);
  95
  96                 passwd = getpwnam(username);
  97                 g_free(username);
  98
  99                 if (!passwd)
 100                         return g_strdup(filename);
 101
 102                 home = passwd->pw_dir;
 103                 }
 104
 105         if (slash)
 106                 return g_build_filename(home, G_DIR_SEPARATOR_S, slash + 1, NULL);
 107         else
 108                 return g_build_filename(home, G_DIR_SEPARATOR_S, NULL);
 109 #endif
 110 }