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
  33 #include "lib/tty/color.h"
  34
  35 #include "src/args.h"
  36
  37 /*** global variables ****************************************************************************/
  38
  39 int mc_skin_color__cache[MC_SKIN_COLOR_CACHE_COUNT];
  40
  41 /*** file scope macro definitions ****************************************************************/
  42
  43 /*** file scope type declarations ****************************************************************/
  44
  45 /*** file scope variables ************************************************************************/
  46
  47 /*** file scope functions ************************************************************************/
  48
  49 static mc_skin_color_t *
  50 mc_skin_color_get_from_hash (mc_skin_t * mc_skin, const gchar * group, const gchar * key)
  51 {
  52     gchar kname[BUF_TINY];
  53     mc_skin_color_t *mc_skin_color;
  54
  55     if (group == NULL || key == NULL)
  56         return NULL;
  57
  58     if (mc_skin == NULL)
  59         mc_skin = &mc_skin__default;
  60
  61     g_snprintf (kname, sizeof (kname), "%s.%s", group, key);
  62     mc_skin_color = (mc_skin_color_t *) g_hash_table_lookup (mc_skin->colors, (gpointer) kname);
  63
  64     return mc_skin_color;
  65 }
  66
  67 /* --------------------------------------------------------------------------------------------- */
  68
  69 #if 0
  70 static void
  71 mc_skin_color_remove_from_hash (mc_skin_t * mc_skin, const gchar * group, const gchar * key)
  72 {
  73     gchar kname[BUF_TINY];
  74     if (group == NULL || key == NULL)
  75         return;
  76
  77     if (mc_skin == NULL)
  78         mc_skin = &mc_skin__default;
  79
  80     g_snprintf (kname, sizeof (kname), "%s.%s", group, key);
  81     g_hash_table_remove (mc_skin->colors, (gpointer) kname);
  82 }
  83 #endif
  84
  85 /* --------------------------------------------------------------------------------------------- */
  86
  87 static void
  88 mc_skin_color_add_to_hash (mc_skin_t * mc_skin, const gchar * group, const gchar * key,
  89                            mc_skin_color_t * mc_skin_color)
  90 {
  91     gchar *kname;
  92
  93     kname = g_strdup_printf ("%s.%s", group, key);
  94     if (kname != NULL)
  95     {
  96         if (g_hash_table_lookup (mc_skin->colors, (gpointer) kname) != NULL)
  97             g_hash_table_remove (mc_skin->colors, (gpointer) kname);
  98
  99         g_hash_table_insert (mc_skin->colors, (gpointer) kname, (gpointer) mc_skin_color);
 100     }
 101 }
 102
 103 /* --------------------------------------------------------------------------------------------- */
 104
 105 static mc_skin_color_t *
 106 mc_skin_color_get_with_defaults (const gchar * group, const gchar * name)
 107 {
 108     mc_skin_color_t *mc_skin_color;
 109
 110     mc_skin_color = mc_skin_color_get_from_hash (NULL, group, name);
 111     if (mc_skin_color != NULL)
 112         return mc_skin_color;
 113
 114     mc_skin_color = mc_skin_color_get_from_hash (NULL, group, "_default_");
 115     if (mc_skin_color != NULL)
 116         return mc_skin_color;
 117
 118     mc_skin_color = mc_skin_color_get_from_hash (NULL, "core", "_default_");
 119     return mc_skin_color;
 120 }
 121
 122 /* --------------------------------------------------------------------------------------------- */
 123
 124 static mc_skin_color_t *
 125 mc_skin_color_get_from_ini_file (mc_skin_t * mc_skin, const gchar * group, const gchar * key)
 126 {
 127     gsize items_count;
 128     gchar **values;
 129     mc_skin_color_t *mc_skin_color, *tmp;
 130
 131     values = mc_config_get_string_list (mc_skin->config, group, key, &items_count);
 132     if (values == NULL)
 133         return NULL;
 134     if (*values == NULL)
 135     {
 136         g_strfreev (values);
 137         return NULL;
 138     }
 139
 140     mc_skin_color = g_try_new0 (mc_skin_color_t, 1);
 141     if (mc_skin_color == NULL)
 142     {
 143         g_strfreev (values);
 144         return NULL;
 145     }
 146
 147     switch (items_count)
 148     {
 149     case 0:
 150         tmp = mc_skin_color_get_with_defaults (group, "_default_");
 151         if (tmp != NULL)
 152         {
 153             mc_skin_color->fgcolor = g_strdup (tmp->fgcolor);
 154             mc_skin_color->bgcolor = g_strdup (tmp->bgcolor);
 155         }
 156         else
 157         {
 158             g_strfreev (values);
 159             g_free (mc_skin_color);
 160             return NULL;
 161         }
 162         break;
 163     case 1:
 164         mc_skin_color->fgcolor = (values[0]) ? g_strstrip (g_strdup (values[0])) : NULL;
 165         tmp = mc_skin_color_get_with_defaults (group, "_default_");
 166         mc_skin_color->bgcolor = (tmp != NULL) ? g_strdup (tmp->bgcolor) : NULL;
 167         break;
 168     case 2:
 169         mc_skin_color->fgcolor = (values[0]) ? g_strstrip (g_strdup (values[0])) : NULL;
 170         mc_skin_color->bgcolor = (values[1]) ? g_strstrip (g_strdup (values[1])) : NULL;
 171         break;
 172     }
 173     g_strfreev (values);
 174
 175     mc_skin_color->pair_index =
 176         tty_try_alloc_color_pair2 (mc_skin_color->fgcolor, mc_skin_color->bgcolor, FALSE);
 177
 178     return mc_skin_color;
 179 }
 180
 181 /* --------------------------------------------------------------------------------------------- */
 182
 183 static void
 184 mc_skin_color_set_default_for_terminal (mc_skin_t * mc_skin)
 185 {
 186     mc_skin_color_t *mc_skin_color;
 187     mc_skin_color = g_try_new0 (mc_skin_color_t, 1);
 188     if (mc_skin_color != NULL)
 189     {
 190         mc_skin_color->fgcolor = g_strdup ("default");
 191         mc_skin_color->bgcolor = g_strdup ("default");
 192         mc_skin_color->pair_index =
 193             tty_try_alloc_color_pair2 (mc_skin_color->fgcolor, mc_skin_color->bgcolor, FALSE);
 194         mc_skin_color_add_to_hash (mc_skin, "skin", "terminal_default_color", mc_skin_color);
 195     }
 196 }
 197
 198 /* --------------------------------------------------------------------------------------------- */
 199 static void
 200 mc_skin_color_cache_init (void)
 201 {
 202     DEFAULT_COLOR = mc_skin_color_get ("skin", "terminal_default_color");
 203     NORMAL_COLOR = mc_skin_color_get ("core", "_default_");
 204     MARKED_COLOR = mc_skin_color_get ("core", "marked");
 205     SELECTED_COLOR = mc_skin_color_get ("core", "selected");
 206     MARKED_SELECTED_COLOR = mc_skin_color_get ("core", "markselect");
 207     DISABLED_COLOR = mc_skin_color_get ("core", "disabled");
 208     REVERSE_COLOR = mc_skin_color_get ("core", "reverse");
 209     HEADER_COLOR = mc_skin_color_get ("core", "header");
 210     COMMAND_MARK_COLOR = mc_skin_color_get ("core", "commandlinemark");
 211
 212     COLOR_NORMAL = mc_skin_color_get ("dialog", "_default_");
 213     COLOR_FOCUS = mc_skin_color_get ("dialog", "dfocus");
 214     COLOR_HOT_NORMAL = mc_skin_color_get ("dialog", "dhotnormal");
 215     COLOR_HOT_FOCUS = mc_skin_color_get ("dialog", "dhotfocus");
 216     COLOR_TITLE = mc_skin_color_get ("dialog", "dtitle");
 217
 218     ERROR_COLOR = mc_skin_color_get ("error", "_default_");
 219     ERROR_FOCUS = mc_skin_color_get ("error", "errdfocus");
 220     ERROR_HOT_NORMAL = mc_skin_color_get ("error", "errdhotnormal");
 221     ERROR_HOT_FOCUS = mc_skin_color_get ("error", "errdhotfocus");
 222     ERROR_TITLE = mc_skin_color_get ("error", "errdtitle");
 223
 224     MENU_ENTRY_COLOR = mc_skin_color_get ("menu", "_default_");
 225     MENU_SELECTED_COLOR = mc_skin_color_get ("menu", "menusel");
 226     MENU_HOT_COLOR = mc_skin_color_get ("menu", "menuhot");
 227     MENU_HOTSEL_COLOR = mc_skin_color_get ("menu", "menuhotsel");
 228     MENU_INACTIVE_COLOR = mc_skin_color_get ("menu", "menuinactive");
 229
 230     PMENU_ENTRY_COLOR = mc_skin_color_get ("popupmenu", "_default_");
 231     PMENU_SELECTED_COLOR = mc_skin_color_get ("popupmenu", "menusel");
 232     PMENU_TITLE_COLOR = mc_skin_color_get ("popupmenu", "menutitle");
 233
 234     BUTTONBAR_HOTKEY_COLOR = mc_skin_color_get ("buttonbar", "hotkey");
 235     BUTTONBAR_BUTTON_COLOR = mc_skin_color_get ("buttonbar", "button");
 236
 237     STATUSBAR_COLOR = mc_skin_color_get ("statusbar", "_default_");
 238
 239     GAUGE_COLOR = mc_skin_color_get ("core", "gauge");
 240     INPUT_COLOR = mc_skin_color_get ("core", "input");
 241     INPUT_HISTORY_COLOR = mc_skin_color_get ("core", "inputhistory");
 242     COMMAND_HISTORY_COLOR = mc_skin_color_get ("core", "commandhistory");
 243     INPUT_MARK_COLOR = mc_skin_color_get ("core", "inputmark");
 244     INPUT_UNCHANGED_COLOR = mc_skin_color_get ("core", "inputunchanged");
 245
 246     HELP_NORMAL_COLOR = mc_skin_color_get ("help", "_default_");
 247     HELP_ITALIC_COLOR = mc_skin_color_get ("help", "helpitalic");
 248     HELP_BOLD_COLOR = mc_skin_color_get ("help", "helpbold");
 249     HELP_LINK_COLOR = mc_skin_color_get ("help", "helplink");
 250     HELP_SLINK_COLOR = mc_skin_color_get ("help", "helpslink");
 251     HELP_TITLE_COLOR = mc_skin_color_get ("help", "helptitle");
 252
 253     VIEW_BOLD_COLOR = mc_skin_color_get ("viewer", "viewbold");
 254     VIEW_UNDERLINED_COLOR = mc_skin_color_get ("viewer", "viewunderline");
 255     VIEW_SELECTED_COLOR = mc_skin_color_get ("viewer", "viewselected");
 256
 257     EDITOR_NORMAL_COLOR = mc_skin_color_get ("editor", "_default_");
 258     EDITOR_BOLD_COLOR = mc_skin_color_get ("editor", "editbold");
 259     EDITOR_MARKED_COLOR = mc_skin_color_get ("editor", "editmarked");
 260     EDITOR_WHITESPACE_COLOR = mc_skin_color_get ("editor", "editwhitespace");
 261     EDITOR_RIGHT_MARGIN_COLOR = mc_skin_color_get ("editor", "editrightmargin");
 262     LINE_STATE_COLOR = mc_skin_color_get ("editor", "editlinestate");
 263
 264     BOOK_MARK_COLOR = mc_skin_color_get ("editor", "bookmark");
 265     BOOK_MARK_FOUND_COLOR = mc_skin_color_get ("editor", "bookmarkfound");
 266
 267     DFF_ADD_COLOR = mc_skin_color_get ("diffviewer", "added");
 268     DFF_CHG_COLOR = mc_skin_color_get ("diffviewer", "changedline");
 269     DFF_CHH_COLOR = mc_skin_color_get ("diffviewer", "changednew");
 270     DFF_CHD_COLOR = mc_skin_color_get ("diffviewer", "changed");
 271     DFF_DEL_COLOR = mc_skin_color_get ("diffviewer", "removed");
 272     DFF_FOLDER_COLOR = mc_skin_color_get ("diffviewer", "folder");
 273     DFF_ERROR_COLOR = mc_skin_color_get ("diffviewer", "error");
 274 }
 275
 276 /* --------------------------------------------------------------------------------------------- */
 277
 278 static gboolean
 279 mc_skin_color_check_inisection (const gchar * group)
 280 {
 281     return !((strcasecmp ("skin", group) == 0)
 282              || (strcasecmp ("lines", group) == 0) || (strncasecmp ("widget-", group, 7) == 0));
 283 }
 284
 285 /* --------------------------------------------------------------------------------------------- */
 286
 287 static void
 288 mc_skin_color_check_bw_mode (mc_skin_t * mc_skin)
 289 {
 290     gchar **groups, **orig_groups;
 291
 292     if (tty_use_colors () && !mc_args__disable_colors)
 293         return;
 294
 295     orig_groups = groups = mc_config_get_groups (mc_skin->config, NULL);
 296
 297     if (groups == NULL)
 298         return;
 299
 300     for (; *groups != NULL; groups++)
 301     {
 302         if (mc_skin_color_check_inisection (*groups))
 303             mc_config_del_group (mc_skin->config, *groups);
 304     }
 305     g_strfreev (orig_groups);
 306     mc_skin_hardcoded_blackwhite_colors (mc_skin);
 307 }
 308
 309 /* --------------------------------------------------------------------------------------------- */
 310 /*** public functions ****************************************************************************/
 311 /* --------------------------------------------------------------------------------------------- */
 312
 313 gboolean
 314 mc_skin_color_parse_ini_file (mc_skin_t * mc_skin)
 315 {
 316     gsize items_count;
 317     gchar **groups, **orig_groups;
 318     gchar **keys, **orig_keys;
 319     mc_skin_color_t *mc_skin_color;
 320
 321     mc_skin_color_check_bw_mode (mc_skin);
 322
 323     orig_groups = groups = mc_config_get_groups (mc_skin->config, &items_count);
 324
 325     if (groups == NULL)
 326         return FALSE;
 327
 328     if (*groups == NULL)
 329     {
 330         g_strfreev (groups);
 331         return FALSE;
 332     }
 333
 334     /* as first, need to set up default colors */
 335     mc_skin_color_set_default_for_terminal (mc_skin);
 336     mc_skin_color = mc_skin_color_get_from_ini_file (mc_skin, "core", "_default_");
 337     if (mc_skin_color == NULL)
 338         return FALSE;
 339
 340     tty_color_set_defaults (mc_skin_color->fgcolor, mc_skin_color->bgcolor);
 341     mc_skin_color_add_to_hash (mc_skin, "core", "_default_", mc_skin_color);
 342
 343     for (; *groups != NULL; groups++)
 344     {
 345         if (!mc_skin_color_check_inisection (*groups))
 346             continue;
 347
 348         orig_keys = keys = mc_config_get_keys (mc_skin->config, *groups, &items_count);
 349         if (keys == NULL)
 350             continue;
 351
 352         for (; *keys != NULL; keys++)
 353         {
 354             mc_skin_color = mc_skin_color_get_from_ini_file (mc_skin, *groups, *keys);
 355             if (mc_skin_color != NULL)
 356                 mc_skin_color_add_to_hash (mc_skin, *groups, *keys, mc_skin_color);
 357         }
 358         g_strfreev (orig_keys);
 359     }
 360     g_strfreev (orig_groups);
 361
 362     mc_skin_color_cache_init ();
 363     return TRUE;
 364 }
 365
 366 /* --------------------------------------------------------------------------------------------- */
 367
 368 int
 369 mc_skin_color_get (const gchar * group, const gchar * name)
 370 {
 371     mc_skin_color_t *mc_skin_color;
 372
 373     mc_skin_color = mc_skin_color_get_with_defaults (group, name);
 374
 375     return (mc_skin_color != NULL) ? mc_skin_color->pair_index : 0;
 376 }
 377
 378 /* --------------------------------------------------------------------------------------------- */