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