lib/skin/colors.c

   1 /*
   2    Skins engine.
   3    Work with colors
   4
   5    Copyright (C) 2009, 2010 The Free Software Foundation, Inc.
   6
   7    Written by:
   8    Slava Zanko <slavazanko@gmail.com>, 2009
   9    Egmont Koblinger <egmont@gmail.com>, 2010
  10
  11    This file is part of the Midnight Commander.
  12
  13    The Midnight Commander is free software; you can redistribute it
  14    and/or modify it under the terms of the GNU General Public License as
  15    published by the Free Software Foundation; either version 2 of the
  16    License, or (at your option) any later version.
  17
  18    The Midnight Commander is distributed in the hope that it will be
  19    useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  20    of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21    General Public License for more details.
  22
  23    You should have received a copy of the GNU General Public License
  24    along with this program; if not, write to the Free Software
  25    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  26    MA 02110-1301, USA.
  27  */
  28
  29 #include <config.h>
  30 #include <string.h>
  31
  32 #include "internal.h"
  33
  34 #include "lib/tty/color.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 kname[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 (kname, sizeof (kname), "%s.%s", group, key);
  61     mc_skin_color = (mc_skin_color_t *) g_hash_table_lookup (mc_skin->colors, (gpointer) kname);
  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 kname[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 (kname, sizeof (kname), "%s.%s", group, key);
  80     g_hash_table_remove (mc_skin->colors, (gpointer) kname);
  81 }
  82 #endif
  83
  84 /* --------------------------------------------------------------------------------------------- */
  85
  86 static void
  87 mc_skin_color_add_to_hash (mc_skin_t * mc_skin, const gchar * group, const gchar * key,
  88                            mc_skin_color_t * mc_skin_color)
  89 {
  90     gchar *kname;
  91
  92     kname = g_strdup_printf ("%s.%s", group, key);
  93     if (kname != NULL)
  94     {
  95         if (g_hash_table_lookup (mc_skin->colors, (gpointer) kname) != NULL)
  96             g_hash_table_remove (mc_skin->colors, (gpointer) kname);
  97
  98         g_hash_table_insert (mc_skin->colors, (gpointer) kname, (gpointer) mc_skin_color);
  99     }
 100 }
 101
 102 /* --------------------------------------------------------------------------------------------- */
 103
 104 static mc_skin_color_t *
 105 mc_skin_color_get_with_defaults (const gchar * group, const gchar * name)
 106 {
 107     mc_skin_color_t *mc_skin_color;
 108
 109     mc_skin_color = mc_skin_color_get_from_hash (NULL, group, name);
 110     if (mc_skin_color != NULL)
 111         return mc_skin_color;
 112
 113     mc_skin_color = mc_skin_color_get_from_hash (NULL, group, "_default_");
 114     if (mc_skin_color != NULL)
 115         return mc_skin_color;
 116
 117     mc_skin_color = mc_skin_color_get_from_hash (NULL, "core", "_default_");
 118     return mc_skin_color;
 119 }
 120
 121 /* --------------------------------------------------------------------------------------------- */
 122
 123 static mc_skin_color_t *
 124 mc_skin_color_get_from_ini_file (mc_skin_t * mc_skin, const gchar * group, const gchar * key)
 125 {
 126     gsize items_count;
 127     gchar **values;
 128     mc_skin_color_t *mc_skin_color, *tmp;
 129
 130     values = mc_config_get_string_list (mc_skin->config, group, key, &items_count);
 131     if (values == NULL || values[0] == NULL)
 132     {
 133         g_strfreev (values);
 134         return NULL;
 135     }
 136
 137     mc_skin_color = g_try_new0 (mc_skin_color_t, 1);
 138     if (mc_skin_color == NULL)
 139     {
 140         g_strfreev (values);
 141         return NULL;
 142     }
 143
 144     tmp = mc_skin_color_get_with_defaults (group, "_default_");
 145     mc_skin_color->fgcolor = (items_count > 0 && values[0][0]) ? g_strstrip (g_strdup (values[0])) :
 146         (tmp != NULL) ? g_strdup (tmp->fgcolor) : NULL;
 147     mc_skin_color->bgcolor = (items_count > 1 && values[1][0]) ? g_strstrip (g_strdup (values[1])) :
 148         (tmp != NULL) ? g_strdup (tmp->bgcolor) : NULL;
 149     mc_skin_color->attrs = (items_count > 2 && values[2][0]) ? g_strstrip (g_strdup (values[2])) :
 150         (tmp != NULL) ? g_strdup (tmp->attrs) : NULL;
 151
 152     g_strfreev (values);
 153
 154     mc_skin_color->pair_index =
 155         tty_try_alloc_color_pair2 (mc_skin_color->fgcolor, mc_skin_color->bgcolor,
 156                                    mc_skin_color->attrs, FALSE);
 157
 158     return mc_skin_color;
 159 }
 160
 161 /* --------------------------------------------------------------------------------------------- */
 162
 163 static void
 164 mc_skin_color_set_default_for_terminal (mc_skin_t * mc_skin)
 165 {
 166     mc_skin_color_t *mc_skin_color;
 167     mc_skin_color = g_try_new0 (mc_skin_color_t, 1);
 168     if (mc_skin_color != NULL)
 169     {
 170         mc_skin_color->fgcolor = g_strdup ("default");
 171         mc_skin_color->bgcolor = g_strdup ("default");
 172         mc_skin_color->attrs = NULL;
 173         mc_skin_color->pair_index =
 174             tty_try_alloc_color_pair2 (mc_skin_color->fgcolor, mc_skin_color->bgcolor,
 175                                        mc_skin_color->attrs, FALSE);
 176         mc_skin_color_add_to_hash (mc_skin, "skin", "terminal_default_color", mc_skin_color);
 177     }
 178 }
 179
 180 /* --------------------------------------------------------------------------------------------- */
 181 static void
 182 mc_skin_color_cache_init (void)
 183 {
 184     DEFAULT_COLOR = mc_skin_color_get ("skin", "terminal_default_color");
 185     NORMAL_COLOR = mc_skin_color_get ("core", "_default_");
 186     MARKED_COLOR = mc_skin_color_get ("core", "marked");
 187     SELECTED_COLOR = mc_skin_color_get ("core", "selected");
 188     MARKED_SELECTED_COLOR = mc_skin_color_get ("core", "markselect");
 189     DISABLED_COLOR = mc_skin_color_get ("core", "disabled");
 190     REVERSE_COLOR = mc_skin_color_get ("core", "reverse");
 191     HEADER_COLOR = mc_skin_color_get ("core", "header");
 192     COMMAND_MARK_COLOR = mc_skin_color_get ("core", "commandlinemark");
 193
 194     COLOR_NORMAL = mc_skin_color_get ("dialog", "_default_");
 195     COLOR_FOCUS = mc_skin_color_get ("dialog", "dfocus");
 196     COLOR_HOT_NORMAL = mc_skin_color_get ("dialog", "dhotnormal");
 197     COLOR_HOT_FOCUS = mc_skin_color_get ("dialog", "dhotfocus");
 198     COLOR_TITLE = mc_skin_color_get ("dialog", "dtitle");
 199
 200     ERROR_COLOR = mc_skin_color_get ("error", "_default_");
 201     ERROR_FOCUS = mc_skin_color_get ("error", "errdfocus");
 202     ERROR_HOT_NORMAL = mc_skin_color_get ("error", "errdhotnormal");
 203     ERROR_HOT_FOCUS = mc_skin_color_get ("error", "errdhotfocus");
 204     ERROR_TITLE = mc_skin_color_get ("error", "errdtitle");
 205
 206     MENU_ENTRY_COLOR = mc_skin_color_get ("menu", "_default_");
 207     MENU_SELECTED_COLOR = mc_skin_color_get ("menu", "menusel");
 208     MENU_HOT_COLOR = mc_skin_color_get ("menu", "menuhot");
 209     MENU_HOTSEL_COLOR = mc_skin_color_get ("menu", "menuhotsel");
 210     MENU_INACTIVE_COLOR = mc_skin_color_get ("menu", "menuinactive");
 211
 212     PMENU_ENTRY_COLOR = mc_skin_color_get ("popupmenu", "_default_");
 213     PMENU_SELECTED_COLOR = mc_skin_color_get ("popupmenu", "menusel");
 214     PMENU_TITLE_COLOR = mc_skin_color_get ("popupmenu", "menutitle");
 215
 216     BUTTONBAR_HOTKEY_COLOR = mc_skin_color_get ("buttonbar", "hotkey");
 217     BUTTONBAR_BUTTON_COLOR = mc_skin_color_get ("buttonbar", "button");
 218
 219     STATUSBAR_COLOR = mc_skin_color_get ("statusbar", "_default_");
 220
 221     GAUGE_COLOR = mc_skin_color_get ("core", "gauge");
 222     INPUT_COLOR = mc_skin_color_get ("core", "input");
 223     INPUT_HISTORY_COLOR = mc_skin_color_get ("core", "inputhistory");
 224     COMMAND_HISTORY_COLOR = mc_skin_color_get ("core", "commandhistory");
 225     INPUT_MARK_COLOR = mc_skin_color_get ("core", "inputmark");
 226     INPUT_UNCHANGED_COLOR = mc_skin_color_get ("core", "inputunchanged");
 227
 228     HELP_NORMAL_COLOR = mc_skin_color_get ("help", "_default_");
 229     HELP_ITALIC_COLOR = mc_skin_color_get ("help", "helpitalic");
 230     HELP_BOLD_COLOR = mc_skin_color_get ("help", "helpbold");
 231     HELP_LINK_COLOR = mc_skin_color_get ("help", "helplink");
 232     HELP_SLINK_COLOR = mc_skin_color_get ("help", "helpslink");
 233     HELP_TITLE_COLOR = mc_skin_color_get ("help", "helptitle");
 234
 235     VIEW_BOLD_COLOR = mc_skin_color_get ("viewer", "viewbold");
 236     VIEW_UNDERLINED_COLOR = mc_skin_color_get ("viewer", "viewunderline");
 237     VIEW_SELECTED_COLOR = mc_skin_color_get ("viewer", "viewselected");
 238
 239     EDITOR_NORMAL_COLOR = mc_skin_color_get ("editor", "_default_");
 240     EDITOR_BOLD_COLOR = mc_skin_color_get ("editor", "editbold");
 241     EDITOR_MARKED_COLOR = mc_skin_color_get ("editor", "editmarked");
 242     EDITOR_WHITESPACE_COLOR = mc_skin_color_get ("editor", "editwhitespace");
 243     EDITOR_RIGHT_MARGIN_COLOR = mc_skin_color_get ("editor", "editrightmargin");
 244     LINE_STATE_COLOR = mc_skin_color_get ("editor", "editlinestate");
 245
 246     BOOK_MARK_COLOR = mc_skin_color_get ("editor", "bookmark");
 247     BOOK_MARK_FOUND_COLOR = mc_skin_color_get ("editor", "bookmarkfound");
 248
 249     DFF_ADD_COLOR = mc_skin_color_get ("diffviewer", "added");
 250     DFF_CHG_COLOR = mc_skin_color_get ("diffviewer", "changedline");
 251     DFF_CHH_COLOR = mc_skin_color_get ("diffviewer", "changednew");
 252     DFF_CHD_COLOR = mc_skin_color_get ("diffviewer", "changed");
 253     DFF_DEL_COLOR = mc_skin_color_get ("diffviewer", "removed");
 254     DFF_FOLDER_COLOR = mc_skin_color_get ("diffviewer", "folder");
 255     DFF_ERROR_COLOR = mc_skin_color_get ("diffviewer", "error");
 256 }
 257
 258 /* --------------------------------------------------------------------------------------------- */
 259
 260 static gboolean
 261 mc_skin_color_check_inisection (const gchar * group)
 262 {
 263     return !((strcasecmp ("skin", group) == 0)
 264              || (strcasecmp ("lines", group) == 0) || (strncasecmp ("widget-", group, 7) == 0));
 265 }
 266
 267 /* --------------------------------------------------------------------------------------------- */
 268
 269 static void
 270 mc_skin_color_check_bw_mode (mc_skin_t * mc_skin)
 271 {
 272     gchar **groups, **orig_groups;
 273
 274     if (tty_use_colors () && !mc_global.args.disable_colors)
 275         return;
 276
 277     orig_groups = groups = mc_config_get_groups (mc_skin->config, NULL);
 278
 279     if (groups == NULL)
 280         return;
 281
 282     for (; *groups != NULL; groups++)
 283     {
 284         if (mc_skin_color_check_inisection (*groups))
 285             mc_config_del_group (mc_skin->config, *groups);
 286     }
 287     g_strfreev (orig_groups);
 288     mc_skin_hardcoded_blackwhite_colors (mc_skin);
 289 }
 290
 291 /* --------------------------------------------------------------------------------------------- */
 292 /*** public functions ****************************************************************************/
 293 /* --------------------------------------------------------------------------------------------- */
 294
 295 gboolean
 296 mc_skin_color_parse_ini_file (mc_skin_t * mc_skin)
 297 {
 298     gsize items_count;
 299     gchar **groups, **orig_groups;
 300     gchar **keys, **orig_keys;
 301     mc_skin_color_t *mc_skin_color;
 302
 303     mc_skin_color_check_bw_mode (mc_skin);
 304
 305     orig_groups = groups = mc_config_get_groups (mc_skin->config, &items_count);
 306     if (groups == NULL || groups[0] == NULL)
 307     {
 308         g_strfreev (groups);
 309         return FALSE;
 310     }
 311
 312     /* as first, need to set up default colors */
 313     mc_skin_color_set_default_for_terminal (mc_skin);
 314     mc_skin_color = mc_skin_color_get_from_ini_file (mc_skin, "core", "_default_");
 315     if (mc_skin_color == NULL)
 316         return FALSE;
 317
 318     tty_color_set_defaults (mc_skin_color->fgcolor, mc_skin_color->bgcolor, mc_skin_color->attrs);
 319     mc_skin_color_add_to_hash (mc_skin, "core", "_default_", mc_skin_color);
 320
 321     for (; *groups != NULL; groups++)
 322     {
 323         if (!mc_skin_color_check_inisection (*groups))
 324             continue;
 325
 326         orig_keys = keys = mc_config_get_keys (mc_skin->config, *groups, &items_count);
 327         if (keys == NULL)
 328             continue;
 329
 330         for (; *keys != NULL; keys++)
 331         {
 332             mc_skin_color = mc_skin_color_get_from_ini_file (mc_skin, *groups, *keys);
 333             if (mc_skin_color != NULL)
 334                 mc_skin_color_add_to_hash (mc_skin, *groups, *keys, mc_skin_color);
 335         }
 336         g_strfreev (orig_keys);
 337     }
 338     g_strfreev (orig_groups);
 339
 340     mc_skin_color_cache_init ();
 341     return TRUE;
 342 }
 343
 344 /* --------------------------------------------------------------------------------------------- */
 345
 346 int
 347 mc_skin_color_get (const gchar * group, const gchar * name)
 348 {
 349     mc_skin_color_t *mc_skin_color;
 350
 351     mc_skin_color = mc_skin_color_get_with_defaults (group, name);
 352
 353     return (mc_skin_color != NULL) ? mc_skin_color->pair_index : 0;
 354 }
 355
 356 /* --------------------------------------------------------------------------------------------- */