src/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 "../src/global.h"
  32 #include "../src/args.h"
  33 #include "skin.h"
  34 #include "internal.h"
  35
  36 /*** global variables ****************************************************************************/
  37
  38 mc_skin_t mc_skin__default;
  39
  40 /*** file scope macro definitions ****************************************************************/
  41
  42 /*** file scope type declarations ****************************************************************/
  43
  44 /*** file scope variables ************************************************************************/
  45
  46 static gboolean mc_skin_is_init = FALSE;
  47
  48 /* --------------------------------------------------------------------------------------------- */
  49 /*** file scope functions ************************************************************************/
  50 /* --------------------------------------------------------------------------------------------- */
  51
  52 static inline void
  53 mc_skin_hash_destroy_key (gpointer data)
  54 {
  55     g_free (data);
  56 }
  57
  58 /* --------------------------------------------------------------------------------------------- */
  59
  60 static void
  61 mc_skin_hash_destroy_value (gpointer data)
  62 {
  63     mc_skin_color_t *mc_skin_color = (mc_skin_color_t *) data;
  64     g_free (mc_skin_color->fgcolor);
  65     g_free (mc_skin_color->bgcolor);
  66     g_free (mc_skin_color);
  67 }
  68
  69 /* --------------------------------------------------------------------------------------------- */
  70
  71 static char *
  72 mc_skin_get_default_name (void)
  73 {
  74     char *tmp_str;
  75
  76     /* from command line */
  77     if (mc_args__skin != NULL)
  78         return g_strdup (mc_args__skin);
  79
  80     /* from envirovement variable */
  81     tmp_str = getenv ("MC_SKIN");
  82     if (tmp_str != NULL)
  83         return g_strdup (tmp_str);
  84
  85     /*  from config. Or 'default' if no present in config */
  86     return mc_config_get_string (mc_main_config, CONFIG_APP_SECTION, "skin", "default");
  87 }
  88
  89 /* --------------------------------------------------------------------------------------------- */
  90
  91 static void
  92 mc_skin_reinit (void)
  93 {
  94     mc_skin_deinit ();
  95     mc_skin__default.name = mc_skin_get_default_name ();
  96     mc_skin__default.colors = g_hash_table_new_full (g_str_hash, g_str_equal,
  97                                                      mc_skin_hash_destroy_key,
  98                                                      mc_skin_hash_destroy_value);
  99 }
 100
 101 /* --------------------------------------------------------------------------------------------- */
 102
 103 static void
 104 mc_skin_try_to_load_default (void)
 105 {
 106     mc_skin_reinit ();
 107     g_free (mc_skin__default.name);
 108     mc_skin__default.name = g_strdup ("default");
 109     if (!mc_skin_ini_file_load (&mc_skin__default)) {
 110         mc_skin_reinit ();
 111         mc_skin_set_hardcoded_skin (&mc_skin__default);
 112     }
 113
 114 }
 115
 116 /* --------------------------------------------------------------------------------------------- */
 117 /*** public functions ****************************************************************************/
 118 /* --------------------------------------------------------------------------------------------- */
 119
 120 gboolean
 121 mc_skin_init (GError ** error)
 122 {
 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     gboolean is_good_init = TRUE;
 131
 132     if (!mc_skin_ini_file_load (&mc_skin__default)) {
 133         *error = g_error_new (MC_ERROR, 0,
 134                               _("Unable to load '%s' skin.\nDefault skin has been loaded"),
 135                               mc_skin__default.name);
 136
 137         mc_skin_try_to_load_default ();
 138         is_good_init = FALSE;
 139     }
 140     mc_skin_colors_old_configure (&mc_skin__default);
 141
 142     if (!mc_skin_ini_file_parse (&mc_skin__default)) {
 143         if (*error == NULL)
 144             *error = g_error_new (MC_ERROR, 0,
 145                                   _("Unable to parse '%s' skin.\nDefault skin has been loaded"),
 146                                   mc_skin__default.name);
 147
 148         mc_skin_try_to_load_default ();
 149         mc_skin_colors_old_configure (&mc_skin__default);
 150         (void) mc_skin_ini_file_parse (&mc_skin__default);
 151         is_good_init = FALSE;
 152     }
 153     mc_skin_is_init = TRUE;
 154     return is_good_init;
 155 }
 156
 157 /* --------------------------------------------------------------------------------------------- */
 158
 159 void
 160 mc_skin_deinit (void)
 161 {
 162
 163     g_free (mc_skin__default.name);
 164     mc_skin__default.name = NULL;
 165     g_hash_table_destroy (mc_skin__default.colors);
 166     mc_skin__default.colors = NULL;
 167
 168     g_free (mc_skin__default.description);
 169     mc_skin__default.description = NULL;
 170
 171     if (mc_skin__default.config) {
 172         mc_config_deinit (mc_skin__default.config);
 173         mc_skin__default.config = NULL;
 174     }
 175
 176     mc_skin_is_init = FALSE;
 177 }
 178
 179 /* --------------------------------------------------------------------------------------------- */