lib/skin/colors.c

   1 /*
   2    Skins engine.
   3    Work with colors
   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 <string.h>
  30
  31 #include "internal.h"
  32 #include "lib/tty/color.h"
  33
  34 #include "src/args.h"
  35
  36 /*** global variables ****************************************************************************/
  37
  38 int mc_skin_color__cache[MC_SKIN_COLOR_CACHE_COUNT];
  39
  40 /*** file scope macro definitions ****************************************************************/
  41
  42 /*** file scope type declarations ****************************************************************/
  43
  44 /*** file scope variables ************************************************************************/
  45
  46 /*** file scope functions ************************************************************************/
  47
  48 static mc_skin_color_t *
  49 mc_skin_color_get_from_hash (mc_skin_t * mc_skin, const gchar * group, const gchar * key)
  50 {
  51     gchar key_name[BUF_TINY];
  52     mc_skin_color_t *mc_skin_color;
  53
  54     if (group == NULL || key == NULL)
  55         return NULL;
  56
  57     if (mc_skin == NULL)
  58         mc_skin = &mc_skin__default;
  59
  60     g_snprintf (key_name, sizeof (key_name), "%s.%s", group, key);
  61     mc_skin_color = (mc_skin_color_t *) g_hash_table_lookup (mc_skin->colors, (gpointer) key_name);
  62
  63     return mc_skin_color;
  64 }
  65
  66 /* --------------------------------------------------------------------------------------------- */
  67
  68 #if 0
  69 static void
  70 mc_skin_color_remove_from_hash (mc_skin_t * mc_skin, const gchar * group, const gchar * key)
  71 {
  72     gchar key_name[BUF_TINY];
  73     if (group == NULL || key == NULL)
  74         return;
  75
  76     if (mc_skin == NULL)
  77         mc_skin = &mc_skin__default;
  78
  79     g_snprintf (key_name, sizeof (key_name), "%s.%s", group, key);
  80     g_hash_table_remove (mc_skin->colors, (gpointer) key_name);
  81 }
  82 #endif
  83 /* --------------------------------------------------------------------------------------------- */
  84
  85 static void
  86 mc_skin_color_add_to_hash (mc_skin_t * mc_skin, const gchar * group, const gchar * key,
  87                            mc_skin_color_t * mc_skin_color)
  88 {
  89     gchar *key_name;
  90
  91     key_name = g_strdup_printf ("%s.%s", group, key);
  92     if (key_name == NULL)
  93         return;
  94
  95     if (g_hash_table_lookup (mc_skin->colors, (gpointer) key_name) != NULL)
  96         g_hash_table_remove (mc_skin->colors, (gpointer) key_name);
  97
  98     g_hash_table_insert (mc_skin->colors, (gpointer) key_name, (gpointer) mc_skin_color);
  99 }
 100
 101 /* --------------------------------------------------------------------------------------------- */
 102
 103 static mc_skin_color_t *
 104 mc_skin_color_get_with_defaults (const gchar * group, const gchar * name)
 105 {
 106     mc_skin_color_t *mc_skin_color;
 107
 108     mc_skin_color = mc_skin_color_get_from_hash (NULL, group, name);
 109     if (mc_skin_color != NULL)
 110         return mc_skin_color;
 111
 112     mc_skin_color = mc_skin_color_get_from_hash (NULL, group, "_default_");
 113     if (mc_skin_color != NULL)
 114         return mc_skin_color;
 115
 116     mc_skin_color = mc_skin_color_get_from_hash (NULL, "core", "_default_");
 117     return mc_skin_color;
 118 }
 119
 120 /* --------------------------------------------------------------------------------------------- */
 121
 122 static mc_skin_color_t *
 123 mc_skin_color_get_from_ini_file (mc_skin_t * mc_skin, const gchar * group, const gchar * key)
 124 {
 125     gsize items_count;
 126     gchar **values;
 127     mc_skin_color_t *mc_skin_color, *tmp;
 128
 129     values = mc_config_get_string_list (mc_skin->config, group, key, &items_count);
 130
 131     if (values == NULL || *values == NULL) {
 132         if (values != NULL)
 133             g_strfreev (values);
 134         return NULL;
 135     }
 136     mc_skin_color = g_try_new0 (mc_skin_color_t, 1);
 137     if (mc_skin_color == NULL) {
 138         g_strfreev (values);
 139         return NULL;
 140     }
 141
 142     switch (items_count) {
 143     case 0:
 144         tmp = mc_skin_color_get_with_defaults (group, "_default_");
 145         if (tmp) {
 146             mc_skin_color->fgcolor = g_strdup (tmp->fgcolor);
 147             mc_skin_color->bgcolor = g_strdup (tmp->bgcolor);
 148         } else {
 149             g_strfreev (values);
 150             g_free (mc_skin_color);
 151             return NULL;
 152         }
 153         break;
 154     case 1:
 155         mc_skin_color->fgcolor = (values[0]) ? g_strstrip (g_strdup (values[0])) : NULL;
 156         tmp = mc_skin_color_get_with_defaults (group, "_default_");
 157         mc_skin_color->bgcolor = (tmp != NULL) ? g_strdup (tmp->bgcolor) : NULL;
 158         break;
 159     case 2:
 160         mc_skin_color->fgcolor = (values[0]) ? g_strstrip (g_strdup (values[0])) : NULL;
 161         mc_skin_color->bgcolor = (values[1]) ? g_strstrip (g_strdup (values[1])) : NULL;
 162         break;
 163     }
 164     g_strfreev (values);
 165
 166     mc_skin_color->pair_index =
 167         tty_try_alloc_color_pair2 (mc_skin_color->fgcolor, mc_skin_color->bgcolor, FALSE);
 168
 169     return mc_skin_color;
 170 }
 171
 172 /* --------------------------------------------------------------------------------------------- */
 173
 174 static void
 175 mc_skin_color_set_default_for_terminal (mc_skin_t * mc_skin)
 176 {
 177     mc_skin_color_t *mc_skin_color;
 178     mc_skin_color = g_try_new0 (mc_skin_color_t, 1);
 179     if (mc_skin_color != NULL) {
 180         mc_skin_color->fgcolor = g_strdup ("default");
 181         mc_skin_color->bgcolor = g_strdup ("default");
 182         mc_skin_color->pair_index =
 183             tty_try_alloc_color_pair2 (mc_skin_color->fgcolor, mc_skin_color->bgcolor, FALSE);
 184         mc_skin_color_add_to_hash (mc_skin, "skin", "terminal_default_color", mc_skin_color);
 185     }
 186 }
 187
 188 /* --------------------------------------------------------------------------------------------- */
 189 static void
 190 mc_skin_color_cache_init (void)
 191 {
 192     DEFAULT_COLOR = mc_skin_color_get ("skin", "terminal_default_color");
 193     NORMAL_COLOR = mc_skin_color_get ("core", "_default_");
 194     MARKED_COLOR = mc_skin_color_get ("core", "marked");
 195     SELECTED_COLOR = mc_skin_color_get ("core", "selected");
 196     MARKED_SELECTED_COLOR = mc_skin_color_get ("core", "markselect");
 197     REVERSE_COLOR = mc_skin_color_get ("core", "reverse");
 198
 199     COLOR_NORMAL = mc_skin_color_get ("dialog", "_default_");
 200     COLOR_FOCUS = mc_skin_color_get ("dialog", "dfocus");
 201     COLOR_HOT_NORMAL = mc_skin_color_get ("dialog", "dhotnormal");
 202     COLOR_HOT_FOCUS = mc_skin_color_get ("dialog", "dhotfocus");
 203
 204     ERROR_COLOR = mc_skin_color_get ("error", "_default_");
 205     ERROR_HOT_NORMAL = mc_skin_color_get ("error", "errdhotnormal");
 206     ERROR_HOT_FOCUS = mc_skin_color_get ("error", "errdhotfocus");
 207
 208     MENU_ENTRY_COLOR = mc_skin_color_get ("menu", "_default_");
 209     MENU_SELECTED_COLOR = mc_skin_color_get ("menu", "menusel");
 210     MENU_HOT_COLOR = mc_skin_color_get ("menu", "menuhot");
 211     MENU_HOTSEL_COLOR = mc_skin_color_get ("menu", "menuhotsel");
 212
 213     GAUGE_COLOR = mc_skin_color_get ("core", "gauge");
 214     INPUT_COLOR = mc_skin_color_get ("core", "input");
 215
 216     HELP_NORMAL_COLOR = mc_skin_color_get ("help", "_default_");
 217     HELP_ITALIC_COLOR = mc_skin_color_get ("help", "helpitalic");
 218     HELP_BOLD_COLOR = mc_skin_color_get ("help", "helpbold");
 219     HELP_LINK_COLOR = mc_skin_color_get ("help", "helplink");
 220     HELP_SLINK_COLOR = mc_skin_color_get ("help", "helpslink");
 221
 222     VIEW_UNDERLINED_COLOR = mc_skin_color_get ("viewer", "viewunderline");
 223
 224     EDITOR_NORMAL_COLOR = mc_skin_color_get ("editor", "_default_");
 225     EDITOR_BOLD_COLOR = mc_skin_color_get ("editor", "editbold");
 226     EDITOR_MARKED_COLOR = mc_skin_color_get ("editor", "editmarked");
 227     EDITOR_WHITESPACE_COLOR = mc_skin_color_get ("editor", "editwhitespace");
 228     EDITOR_RIGHT_MARGIN_COLOR = mc_skin_color_get ("editor", "editrightmargin");
 229     LINE_STATE_COLOR = mc_skin_color_get ("editor", "linestate");
 230
 231     BOOK_MARK_COLOR = mc_skin_color_get ("editor", "bookmark");
 232     BOOK_MARK_FOUND_COLOR = mc_skin_color_get ("editor", "bookmarkfound");
 233     BUTTONBAR_HOTKEY_COLOR = mc_skin_color_get ("buttonbar", "hotkey");
 234     BUTTONBAR_BUTTON_COLOR = mc_skin_color_get ("buttonbar", "button");
 235
 236
 237 }
 238
 239 /* --------------------------------------------------------------------------------------------- */
 240
 241 static gboolean
 242 mc_skin_color_check_inisection (const gchar * group)
 243 {
 244     return !((strcasecmp ("skin", group) == 0)
 245         || (strcasecmp ("lines", group) == 0));
 246 }
 247
 248 /* --------------------------------------------------------------------------------------------- */
 249
 250 static void
 251 mc_skin_color_check_bw_mode (mc_skin_t * mc_skin)
 252 {
 253     gchar **groups, **orig_groups;
 254
 255     if ( tty_use_colors () && !mc_args__disable_colors)
 256         return;
 257
 258     orig_groups = groups = mc_config_get_groups (mc_skin->config, NULL);
 259
 260     if (groups == NULL)
 261         return;
 262
 263     for (; *groups != NULL; groups++) {
 264         if (mc_skin_color_check_inisection (*groups))
 265             mc_config_del_group (mc_skin->config, *groups);
 266     }
 267     g_strfreev (orig_groups);
 268     mc_skin_hardcoded_blackwhite_colors (mc_skin);
 269 }
 270
 271 /* --------------------------------------------------------------------------------------------- */
 272 /*** public functions ****************************************************************************/
 273 /* --------------------------------------------------------------------------------------------- */
 274
 275 gboolean
 276 mc_skin_color_parse_ini_file (mc_skin_t * mc_skin)
 277 {
 278     gsize items_count;
 279     gchar **groups, **orig_groups;
 280     gchar **keys, **orig_keys;
 281     mc_skin_color_t *mc_skin_color;
 282
 283     mc_skin_color_check_bw_mode (mc_skin);
 284
 285     orig_groups = groups = mc_config_get_groups (mc_skin->config, &items_count);
 286
 287     if (groups == NULL)
 288         return FALSE;
 289
 290     if (*groups == NULL) {
 291         g_strfreev (groups);
 292         return FALSE;
 293     }
 294
 295     /* as first, need to set up default colors */
 296     mc_skin_color_set_default_for_terminal (mc_skin);
 297     mc_skin_color = mc_skin_color_get_from_ini_file (mc_skin, "core", "_default_");
 298     if (mc_skin_color == NULL)
 299         return FALSE;
 300
 301     tty_color_set_defaults (mc_skin_color->fgcolor, mc_skin_color->bgcolor);
 302     mc_skin_color_add_to_hash (mc_skin, "core", "_default_", mc_skin_color);
 303
 304     for (; *groups != NULL; groups++) {
 305         if (!mc_skin_color_check_inisection (*groups))
 306             continue;
 307
 308         orig_keys = keys = mc_config_get_keys (mc_skin->config, *groups, &items_count);
 309         if (keys == NULL)
 310             continue;
 311
 312         if(*keys == NULL) {
 313             g_strfreev (keys);
 314             continue;
 315         }
 316
 317         for (; *keys; keys++) {
 318             mc_skin_color = mc_skin_color_get_from_ini_file (mc_skin, *groups, *keys);
 319             if (mc_skin_color != NULL)
 320                 mc_skin_color_add_to_hash (mc_skin, *groups, *keys, mc_skin_color);
 321         }
 322         g_strfreev (orig_keys);
 323     }
 324     g_strfreev (orig_groups);
 325
 326     mc_skin_color_cache_init ();
 327     return TRUE;
 328 }
 329
 330 /* --------------------------------------------------------------------------------------------- */
 331
 332 int
 333 mc_skin_color_get (const gchar * group, const gchar * name)
 334 {
 335     mc_skin_color_t *mc_skin_color;
 336
 337     mc_skin_color = mc_skin_color_get_with_defaults (group, name);
 338
 339     return (mc_skin_color != NULL) ? mc_skin_color->pair_index : 0;
 340 }
 341
 342 /* --------------------------------------------------------------------------------------------- */