lib/skin/colors.c

   1 /*
   2    Skins engine.
   3    Work with colors
   4
   5    Copyright (C) 2009, 2010, 2011
   6    The Free Software Foundation, Inc.
   7
   8    Written by:
   9    Slava Zanko <slavazanko@gmail.com>, 2009
  10    Egmont Koblinger <egmont@gmail.com>, 2010
  11
  12    This file is part of the Midnight Commander.
  13
  14    The Midnight Commander is free software: you can redistribute it
  15    and/or modify it under the terms of the GNU General Public License as
  16    published by the Free Software Foundation, either version 3 of the License,
  17    or (at your option) any later version.
  18
  19    The Midnight Commander is distributed in the hope that it will be useful,
  20    but WITHOUT ANY WARRANTY; without even the implied warranty of
  21    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22    GNU General Public License for more details.
  23
  24    You should have received a copy of the GNU General Public License
  25    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  26  */
  27
  28 #include <config.h>
  29 #include <string.h>
  30
  31 #include "internal.h"
  32
  33 #include "lib/tty/color.h"
  34
  35 /*** global variables ****************************************************************************/
  36
  37 int mc_skin_color__cache[MC_SKIN_COLOR_CACHE_COUNT];
  38
  39 /*** file scope macro definitions ****************************************************************/
  40
  41 /*** file scope type declarations ****************************************************************/
  42
  43 /*** file scope variables ************************************************************************/
  44
  45 /*** file scope functions ************************************************************************/
  46
  47 static mc_skin_color_t *
  48 mc_skin_color_get_from_hash (mc_skin_t * mc_skin, const gchar * group, const gchar * key)
  49 {
  50     gchar kname[BUF_TINY];
  51     mc_skin_color_t *mc_skin_color;
  52
  53     if (group == NULL || key == NULL)
  54         return NULL;
  55
  56     if (mc_skin == NULL)
  57         mc_skin = &mc_skin__default;
  58
  59     g_snprintf (kname, sizeof (kname), "%s.%s", group, key);
  60     mc_skin_color = (mc_skin_color_t *) g_hash_table_lookup (mc_skin->colors, (gpointer) kname);
  61
  62     return mc_skin_color;
  63 }
  64
  65 /* --------------------------------------------------------------------------------------------- */
  66
  67 #if 0
  68 static void
  69 mc_skin_color_remove_from_hash (mc_skin_t * mc_skin, const gchar * group, const gchar * key)
  70 {
  71     gchar kname[BUF_TINY];
  72     if (group == NULL || key == NULL)
  73         return;
  74
  75     if (mc_skin == NULL)
  76         mc_skin = &mc_skin__default;
  77
  78     g_snprintf (kname, sizeof (kname), "%s.%s", group, key);
  79     g_hash_table_remove (mc_skin->colors, (gpointer) kname);
  80 }
  81 #endif
  82
  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 *kname;
  90
  91     kname = g_strdup_printf ("%s.%s", group, key);
  92     if (kname != NULL)
  93     {
  94         if (g_hash_table_lookup (mc_skin->colors, (gpointer) kname) != NULL)
  95             g_hash_table_remove (mc_skin->colors, (gpointer) kname);
  96
  97         g_hash_table_insert (mc_skin->colors, (gpointer) kname, (gpointer) mc_skin_color);
  98     }
  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     if (values == NULL || values[0] == NULL)
 131     {
 132         g_strfreev (values);
 133         return NULL;
 134     }
 135
 136     mc_skin_color = g_try_new0 (mc_skin_color_t, 1);
 137     if (mc_skin_color == NULL)
 138     {
 139         g_strfreev (values);
 140         return NULL;
 141     }
 142
 143     tmp = mc_skin_color_get_with_defaults (group, "_default_");
 144     mc_skin_color->fgcolor = (items_count > 0 && values[0][0]) ? g_strstrip (g_strdup (values[0])) :
 145         (tmp != NULL) ? g_strdup (tmp->fgcolor) : NULL;
 146     mc_skin_color->bgcolor = (items_count > 1 && values[1][0]) ? g_strstrip (g_strdup (values[1])) :
 147         (tmp != NULL) ? g_strdup (tmp->bgcolor) : NULL;
 148     mc_skin_color->attrs = (items_count > 2 && values[2][0]) ? g_strstrip (g_strdup (values[2])) :
 149         (tmp != NULL) ? g_strdup (tmp->attrs) : NULL;
 150
 151     g_strfreev (values);
 152
 153     mc_skin_color->pair_index =
 154         tty_try_alloc_color_pair2 (mc_skin_color->fgcolor, mc_skin_color->bgcolor,
 155                                    mc_skin_color->attrs, FALSE);
 156
 157     return mc_skin_color;
 158 }
 159
 160 /* --------------------------------------------------------------------------------------------- */
 161
 162 static void
 163 mc_skin_color_set_default_for_terminal (mc_skin_t * mc_skin)
 164 {
 165     mc_skin_color_t *mc_skin_color;
 166     mc_skin_color = g_try_new0 (mc_skin_color_t, 1);
 167     if (mc_skin_color != NULL)
 168     {
 169         mc_skin_color->fgcolor = g_strdup ("default");
 170         mc_skin_color->bgcolor = g_strdup ("default");
 171         mc_skin_color->attrs = NULL;
 172         mc_skin_color->pair_index =
 173             tty_try_alloc_color_pair2 (mc_skin_color->fgcolor, mc_skin_color->bgcolor,
 174                                        mc_skin_color->attrs, FALSE);
 175         mc_skin_color_add_to_hash (mc_skin, "skin", "terminal_default_color", mc_skin_color);
 176     }
 177 }
 178
 179 /* --------------------------------------------------------------------------------------------- */
 180 static void
 181 mc_skin_color_cache_init (void)
 182 {
 183     DEFAULT_COLOR = mc_skin_color_get ("skin", "terminal_default_color");
 184     NORMAL_COLOR = mc_skin_color_get ("core", "_default_");
 185     MARKED_COLOR = mc_skin_color_get ("core", "marked");
 186     SELECTED_COLOR = mc_skin_color_get ("core", "selected");
 187     MARKED_SELECTED_COLOR = mc_skin_color_get ("core", "markselect");
 188     DISABLED_COLOR = mc_skin_color_get ("core", "disabled");
 189     REVERSE_COLOR = mc_skin_color_get ("core", "reverse");
 190     HEADER_COLOR = mc_skin_color_get ("core", "header");
 191     COMMAND_MARK_COLOR = mc_skin_color_get ("core", "commandlinemark");
 192
 193     COLOR_NORMAL = mc_skin_color_get ("dialog", "_default_");
 194     COLOR_FOCUS = mc_skin_color_get ("dialog", "dfocus");
 195     COLOR_HOT_NORMAL = mc_skin_color_get ("dialog", "dhotnormal");
 196     COLOR_HOT_FOCUS = mc_skin_color_get ("dialog", "dhotfocus");
 197     COLOR_TITLE = mc_skin_color_get ("dialog", "dtitle");
 198
 199     ERROR_COLOR = mc_skin_color_get ("error", "_default_");
 200     ERROR_FOCUS = mc_skin_color_get ("error", "errdfocus");
 201     ERROR_HOT_NORMAL = mc_skin_color_get ("error", "errdhotnormal");
 202     ERROR_HOT_FOCUS = mc_skin_color_get ("error", "errdhotfocus");
 203     ERROR_TITLE = mc_skin_color_get ("error", "errdtitle");
 204
 205     MENU_ENTRY_COLOR = mc_skin_color_get ("menu", "_default_");
 206     MENU_SELECTED_COLOR = mc_skin_color_get ("menu", "menusel");
 207     MENU_HOT_COLOR = mc_skin_color_get ("menu", "menuhot");
 208     MENU_HOTSEL_COLOR = mc_skin_color_get ("menu", "menuhotsel");
 209     MENU_INACTIVE_COLOR = mc_skin_color_get ("menu", "menuinactive");
 210
 211     PMENU_ENTRY_COLOR = mc_skin_color_get ("popupmenu", "_default_");
 212     PMENU_SELECTED_COLOR = mc_skin_color_get ("popupmenu", "menusel");
 213     PMENU_TITLE_COLOR = mc_skin_color_get ("popupmenu", "menutitle");
 214
 215     BUTTONBAR_HOTKEY_COLOR = mc_skin_color_get ("buttonbar", "hotkey");
 216     BUTTONBAR_BUTTON_COLOR = mc_skin_color_get ("buttonbar", "button");
 217
 218     STATUSBAR_COLOR = mc_skin_color_get ("statusbar", "_default_");
 219
 220     GAUGE_COLOR = mc_skin_color_get ("core", "gauge");
 221     INPUT_COLOR = mc_skin_color_get ("core", "input");
 222     INPUT_HISTORY_COLOR = mc_skin_color_get ("core", "inputhistory");
 223     COMMAND_HISTORY_COLOR = mc_skin_color_get ("core", "commandhistory");
 224     INPUT_MARK_COLOR = mc_skin_color_get ("core", "inputmark");
 225     INPUT_UNCHANGED_COLOR = mc_skin_color_get ("core", "inputunchanged");
 226
 227     HELP_NORMAL_COLOR = mc_skin_color_get ("help", "_default_");
 228     HELP_ITALIC_COLOR = mc_skin_color_get ("help", "helpitalic");
 229     HELP_BOLD_COLOR = mc_skin_color_get ("help", "helpbold");
 230     HELP_LINK_COLOR = mc_skin_color_get ("help", "helplink");
 231     HELP_SLINK_COLOR = mc_skin_color_get ("help", "helpslink");
 232     HELP_TITLE_COLOR = mc_skin_color_get ("help", "helptitle");
 233
 234     VIEW_BOLD_COLOR = mc_skin_color_get ("viewer", "viewbold");
 235     VIEW_UNDERLINED_COLOR = mc_skin_color_get ("viewer", "viewunderline");
 236     VIEW_SELECTED_COLOR = mc_skin_color_get ("viewer", "viewselected");
 237
 238     EDITOR_NORMAL_COLOR = mc_skin_color_get ("editor", "_default_");
 239     EDITOR_BOLD_COLOR = mc_skin_color_get ("editor", "editbold");
 240     EDITOR_MARKED_COLOR = mc_skin_color_get ("editor", "editmarked");
 241     EDITOR_WHITESPACE_COLOR = mc_skin_color_get ("editor", "editwhitespace");
 242     EDITOR_RIGHT_MARGIN_COLOR = mc_skin_color_get ("editor", "editrightmargin");
 243     LINE_STATE_COLOR = mc_skin_color_get ("editor", "editlinestate");
 244
 245     BOOK_MARK_COLOR = mc_skin_color_get ("editor", "bookmark");
 246     BOOK_MARK_FOUND_COLOR = mc_skin_color_get ("editor", "bookmarkfound");
 247
 248     DFF_ADD_COLOR = mc_skin_color_get ("diffviewer", "added");
 249     DFF_CHG_COLOR = mc_skin_color_get ("diffviewer", "changedline");
 250     DFF_CHH_COLOR = mc_skin_color_get ("diffviewer", "changednew");
 251     DFF_CHD_COLOR = mc_skin_color_get ("diffviewer", "changed");
 252     DFF_DEL_COLOR = mc_skin_color_get ("diffviewer", "removed");
 253     DFF_FOLDER_COLOR = mc_skin_color_get ("diffviewer", "folder");
 254     DFF_ERROR_COLOR = mc_skin_color_get ("diffviewer", "error");
 255 }
 256
 257 /* --------------------------------------------------------------------------------------------- */
 258
 259 static gboolean
 260 mc_skin_color_check_inisection (const gchar * group)
 261 {
 262     return !((strcasecmp ("skin", group) == 0)
 263              || (strcasecmp ("lines", group) == 0) || (strncasecmp ("widget-", group, 7) == 0));
 264 }
 265
 266 /* --------------------------------------------------------------------------------------------- */
 267
 268 static void
 269 mc_skin_color_check_bw_mode (mc_skin_t * mc_skin)
 270 {
 271     gchar **groups, **orig_groups;
 272
 273     if (tty_use_colors () && !mc_global.tty.disable_colors)
 274         return;
 275
 276     orig_groups = groups = mc_config_get_groups (mc_skin->config, NULL);
 277
 278     if (groups == NULL)
 279         return;
 280
 281     for (; *groups != NULL; groups++)
 282     {
 283         if (mc_skin_color_check_inisection (*groups))
 284             mc_config_del_group (mc_skin->config, *groups);
 285     }
 286     g_strfreev (orig_groups);
 287     mc_skin_hardcoded_blackwhite_colors (mc_skin);
 288 }
 289
 290 /* --------------------------------------------------------------------------------------------- */
 291 /*** public functions ****************************************************************************/
 292 /* --------------------------------------------------------------------------------------------- */
 293
 294 gboolean
 295 mc_skin_color_parse_ini_file (mc_skin_t * mc_skin)
 296 {
 297     gsize items_count;
 298     gchar **groups, **orig_groups;
 299     gchar **keys, **orig_keys;
 300     mc_skin_color_t *mc_skin_color;
 301
 302     mc_skin_color_check_bw_mode (mc_skin);
 303
 304     orig_groups = groups = mc_config_get_groups (mc_skin->config, &items_count);
 305     if (groups == NULL || groups[0] == NULL)
 306     {
 307         g_strfreev (groups);
 308         return FALSE;
 309     }
 310
 311     /* as first, need to set up default colors */
 312     mc_skin_color_set_default_for_terminal (mc_skin);
 313     mc_skin_color = mc_skin_color_get_from_ini_file (mc_skin, "core", "_default_");
 314     if (mc_skin_color == NULL)
 315         return FALSE;
 316
 317     tty_color_set_defaults (mc_skin_color->fgcolor, mc_skin_color->bgcolor, mc_skin_color->attrs);
 318     mc_skin_color_add_to_hash (mc_skin, "core", "_default_", mc_skin_color);
 319
 320     for (; *groups != NULL; groups++)
 321     {
 322         if (!mc_skin_color_check_inisection (*groups))
 323             continue;
 324
 325         orig_keys = keys = mc_config_get_keys (mc_skin->config, *groups, &items_count);
 326         if (keys == NULL)
 327             continue;
 328
 329         for (; *keys != NULL; keys++)
 330         {
 331             mc_skin_color = mc_skin_color_get_from_ini_file (mc_skin, *groups, *keys);
 332             if (mc_skin_color != NULL)
 333                 mc_skin_color_add_to_hash (mc_skin, *groups, *keys, mc_skin_color);
 334         }
 335         g_strfreev (orig_keys);
 336     }
 337     g_strfreev (orig_groups);
 338
 339     mc_skin_color_cache_init ();
 340     return TRUE;
 341 }
 342
 343 /* --------------------------------------------------------------------------------------------- */
 344
 345 int
 346 mc_skin_color_get (const gchar * group, const gchar * name)
 347 {
 348     mc_skin_color_t *mc_skin_color;
 349
 350     mc_skin_color = mc_skin_color_get_with_defaults (group, name);
 351
 352     return (mc_skin_color != NULL) ? mc_skin_color->pair_index : 0;
 353 }
 354
 355 /* --------------------------------------------------------------------------------------------- */