lib/skin/common.c

   1 /*
   2    Skins engine.
   3    Interface functions
   4
   5    Copyright (C) 2009 The Free Software Foundation, Inc.
   6
   7    Written by:
   8    Slava Zanko <slavazanko@gmail.com>, 2009.
   9
  10    This file is part of the Midnight Commander.
  11
  12    The Midnight Commander is free software; you can redistribute it
  13    and/or modify it under the terms of the GNU General Public License as
  14    published by the Free Software Foundation; either version 2 of the
  15    License, or (at your option) any later version.
  16
  17    The Midnight Commander is distributed in the hope that it will be
  18    useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  19    of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20    General Public License for more details.
  21
  22    You should have received a copy of the GNU General Public License
  23    along with this program; if not, write to the Free Software
  24    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  25    MA 02110-1301, USA.
  26  */
  27
  28 #include <config.h>
  29 #include <stdlib.h>
  30
  31 #include "internal.h"
  32
  33 #include "src/args.h"
  34
  35 /*** global variables ****************************************************************************/
  36
  37 mc_skin_t mc_skin__default;
  38
  39 /*** file scope macro definitions ****************************************************************/
  40
  41 /*** file scope type declarations ****************************************************************/
  42
  43 /*** file scope variables ************************************************************************/
  44
  45 static gboolean mc_skin_is_init = FALSE;
  46
  47 /* --------------------------------------------------------------------------------------------- */
  48 /*** file scope functions ************************************************************************/
  49 /* --------------------------------------------------------------------------------------------- */
  50
  51 static inline void
  52 mc_skin_hash_destroy_key (gpointer data)
  53 {
  54     g_free (data);
  55 }
  56
  57 /* --------------------------------------------------------------------------------------------- */
  58
  59 static void
  60 mc_skin_hash_destroy_value (gpointer data)
  61 {
  62     mc_skin_color_t *mc_skin_color = (mc_skin_color_t *) data;
  63     g_free (mc_skin_color->fgcolor);
  64     g_free (mc_skin_color->bgcolor);
  65     g_free (mc_skin_color);
  66 }
  67
  68 /* --------------------------------------------------------------------------------------------- */
  69
  70 static char *
  71 mc_skin_get_default_name (void)
  72 {
  73     char *tmp_str;
  74
  75     /* from command line */
  76     if (mc_args__skin != NULL)
  77         return g_strdup (mc_args__skin);
  78
  79     /* from envirovement variable */
  80     tmp_str = getenv ("MC_SKIN");
  81     if (tmp_str != NULL)
  82         return g_strdup (tmp_str);
  83
  84     /*  from config. Or 'default' if no present in config */
  85     return mc_config_get_string (mc_main_config, CONFIG_APP_SECTION, "skin", "default");
  86 }
  87
  88 /* --------------------------------------------------------------------------------------------- */
  89
  90 static void
  91 mc_skin_reinit (void)
  92 {
  93     mc_skin_deinit ();
  94     mc_skin__default.name = mc_skin_get_default_name ();
  95     mc_skin__default.colors = g_hash_table_new_full (g_str_hash, g_str_equal,
  96                                                      mc_skin_hash_destroy_key,
  97                                                      mc_skin_hash_destroy_value);
  98 }
  99
 100 /* --------------------------------------------------------------------------------------------- */
 101
 102 static void
 103 mc_skin_try_to_load_default (void)
 104 {
 105     mc_skin_reinit ();
 106     g_free (mc_skin__default.name);
 107     mc_skin__default.name = g_strdup ("default");
 108     if (!mc_skin_ini_file_load (&mc_skin__default)) {
 109         mc_skin_reinit ();
 110         mc_skin_set_hardcoded_skin (&mc_skin__default);
 111     }
 112
 113 }
 114
 115 /* --------------------------------------------------------------------------------------------- */
 116 /*** public functions ****************************************************************************/
 117 /* --------------------------------------------------------------------------------------------- */
 118
 119 gboolean
 120 mc_skin_init (GError ** error)
 121 {
 122     gboolean is_good_init = TRUE;
 123
 124     mc_skin__default.name = mc_skin_get_default_name ();
 125
 126     mc_skin__default.colors = g_hash_table_new_full (g_str_hash, g_str_equal,
 127                                                      mc_skin_hash_destroy_key,
 128                                                      mc_skin_hash_destroy_value);
 129
 130     if (!mc_skin_ini_file_load (&mc_skin__default)) {
 131         *error = g_error_new (MC_ERROR, 0,
 132                               _("Unable to load '%s' skin.\nDefault skin has been loaded"),
 133                               mc_skin__default.name);
 134
 135         mc_skin_try_to_load_default ();
 136         is_good_init = FALSE;
 137     }
 138     mc_skin_colors_old_configure (&mc_skin__default);
 139
 140     if (!mc_skin_ini_file_parse (&mc_skin__default)) {
 141         if (*error == NULL)
 142             *error = g_error_new (MC_ERROR, 0,
 143                                   _("Unable to parse '%s' skin.\nDefault skin has been loaded"),
 144                                   mc_skin__default.name);
 145
 146         mc_skin_try_to_load_default ();
 147         mc_skin_colors_old_configure (&mc_skin__default);
 148         (void) mc_skin_ini_file_parse (&mc_skin__default);
 149         is_good_init = FALSE;
 150     }
 151     mc_skin_is_init = TRUE;
 152     return is_good_init;
 153 }
 154
 155 /* --------------------------------------------------------------------------------------------- */
 156
 157 void
 158 mc_skin_deinit (void)
 159 {
 160
 161     g_free (mc_skin__default.name);
 162     mc_skin__default.name = NULL;
 163     g_hash_table_destroy (mc_skin__default.colors);
 164     mc_skin__default.colors = NULL;
 165
 166     g_free (mc_skin__default.description);
 167     mc_skin__default.description = NULL;
 168
 169     if (mc_skin__default.config) {
 170         mc_config_deinit (mc_skin__default.config);
 171         mc_skin__default.config = NULL;
 172     }
 173
 174     mc_skin_is_init = FALSE;
 175 }
 176
 177 /* --------------------------------------------------------------------------------------------- */
 178
 179 gchar *
 180 mc_skin_get(const gchar *group, const gchar *key, const gchar *default_value)
 181 {
 182     if (mc_args__ugly_line_drawing) {
 183         return g_strdup(default_value);
 184     }
 185     return mc_config_get_string(mc_skin__default.config, group, key, default_value);
 186 }
 187
 188 /* --------------------------------------------------------------------------------------------- */