diff options
Diffstat (limited to 'lib/skin/colors.c')
| -rw-r--r-- | lib/skin/colors.c | 422 |
1 files changed, 422 insertions, 0 deletions
diff --git a/lib/skin/colors.c b/lib/skin/colors.c new file mode 100644 index 0000000..87e9442 --- /dev/null +++ b/lib/skin/colors.c @@ -0,0 +1,422 @@ +/* + Skins engine. + Work with colors + + Copyright (C) 2009-2023 + Free Software Foundation, Inc. + + Written by: + Slava Zanko <slavazanko@gmail.com>, 2009 + Egmont Koblinger <egmont@gmail.com>, 2010 + Andrew Borodin <aborodin@vmail.ru>, 2012 + + This file is part of the Midnight Commander. + + The Midnight Commander is free software: you can redistribute it + and/or modify it under the terms of the GNU General Public License as + published by the Free Software Foundation, either version 3 of the License, + or (at your option) any later version. + + The Midnight Commander is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <config.h> +#include <string.h> + +#include "internal.h" + +#include "lib/tty/color.h" + +/*** global variables ****************************************************************************/ + +int mc_skin_color__cache[MC_SKIN_COLOR_CACHE_COUNT]; + +/*** file scope macro definitions ****************************************************************/ + +/*** file scope type declarations ****************************************************************/ + +/*** forward declarations (file scope functions) *************************************************/ + +/*** file scope variables ************************************************************************/ + +/* --------------------------------------------------------------------------------------------- */ +/*** file scope functions ************************************************************************/ +/* --------------------------------------------------------------------------------------------- */ + +static mc_skin_color_t * +mc_skin_color_get_from_hash (mc_skin_t * mc_skin, const gchar * group, const gchar * key) +{ + gchar kname[BUF_TINY]; + mc_skin_color_t *mc_skin_color; + + if (group == NULL || key == NULL) + return NULL; + + if (mc_skin == NULL) + mc_skin = &mc_skin__default; + + g_snprintf (kname, sizeof (kname), "%s.%s", group, key); + mc_skin_color = (mc_skin_color_t *) g_hash_table_lookup (mc_skin->colors, (gpointer) kname); + + return mc_skin_color; +} + +/* --------------------------------------------------------------------------------------------- */ + +#if 0 +static void +mc_skin_color_remove_from_hash (mc_skin_t * mc_skin, const gchar * group, const gchar * key) +{ + gchar kname[BUF_TINY]; + if (group == NULL || key == NULL) + return; + + if (mc_skin == NULL) + mc_skin = &mc_skin__default; + + g_snprintf (kname, sizeof (kname), "%s.%s", group, key); + g_hash_table_remove (mc_skin->colors, (gpointer) kname); +} +#endif + +/* --------------------------------------------------------------------------------------------- */ + +static void +mc_skin_color_add_to_hash (mc_skin_t * mc_skin, const gchar * group, const gchar * key, + mc_skin_color_t * mc_skin_color) +{ + gchar *kname; + + kname = g_strdup_printf ("%s.%s", group, key); + if (kname != NULL) + { + if (g_hash_table_lookup (mc_skin->colors, (gpointer) kname) != NULL) + g_hash_table_remove (mc_skin->colors, (gpointer) kname); + + g_hash_table_insert (mc_skin->colors, (gpointer) kname, (gpointer) mc_skin_color); + } +} + +/* --------------------------------------------------------------------------------------------- */ + +static mc_skin_color_t * +mc_skin_color_get_with_defaults (const gchar * group, const gchar * name) +{ + mc_skin_color_t *mc_skin_color; + + mc_skin_color = mc_skin_color_get_from_hash (NULL, group, name); + if (mc_skin_color != NULL) + return mc_skin_color; + + mc_skin_color = mc_skin_color_get_from_hash (NULL, group, "_default_"); + if (mc_skin_color != NULL) + return mc_skin_color; + + mc_skin_color = mc_skin_color_get_from_hash (NULL, "core", "_default_"); + return mc_skin_color; +} + +/* --------------------------------------------------------------------------------------------- */ + +/* If an alias is found, alloc a new string for the resolved value and free the input parameter. + Otherwise it's a no-op returning the original string. */ +static gchar * +mc_skin_color_look_up_alias (mc_skin_t * mc_skin, gchar * str) +{ + gchar *orig, *str2; + int hop = 0; + + orig = g_strdup (str); + str2 = g_strdup (str); + + while (TRUE) + { + gchar **values; + gsize items_count; + + values = mc_config_get_string_list (mc_skin->config, "aliases", str, &items_count); + if (items_count != 1) + { + /* No such alias declaration found, that is, we've got the resolved value. */ + g_strfreev (values); + g_free (str2); + g_free (orig); + return str; + } + + g_free (str); + str = g_strdup (values[0]); + g_strfreev (values); + + /* str2 resolves at half speed than str. This is used for loop detection. */ + if (hop++ % 2 != 0) + { + values = mc_config_get_string_list (mc_skin->config, "aliases", str2, &items_count); + g_assert (items_count == 1); + g_free (str2); + str2 = g_strdup (values[0]); + g_strfreev (values); + + if (strcmp (str, str2) == 0) + { + /* Loop detected. */ + fprintf (stderr, + "Loop detected while trying to resolve alias \"%s\" in skin \"%s\"\n", + orig, mc_skin->name); + g_free (str); + g_free (str2); + return orig; + } + } + } +} + +/* --------------------------------------------------------------------------------------------- */ + +static mc_skin_color_t * +mc_skin_color_get_from_ini_file (mc_skin_t * mc_skin, const gchar * group, const gchar * key) +{ + gsize items_count; + gchar **values; + mc_skin_color_t *mc_skin_color, *tmp; + + values = mc_config_get_string_list (mc_skin->config, group, key, &items_count); + if (values == NULL || values[0] == NULL) + { + g_strfreev (values); + return NULL; + } + + mc_skin_color = g_try_new0 (mc_skin_color_t, 1); + if (mc_skin_color == NULL) + { + g_strfreev (values); + return NULL; + } + + tmp = mc_skin_color_get_with_defaults (group, "_default_"); + mc_skin_color->fgcolor = (items_count > 0 && values[0][0]) ? + mc_skin_color_look_up_alias (mc_skin, g_strstrip (g_strdup (values[0]))) : + (tmp != NULL) ? g_strdup (tmp->fgcolor) : NULL; + mc_skin_color->bgcolor = (items_count > 1 && values[1][0]) ? + mc_skin_color_look_up_alias (mc_skin, g_strstrip (g_strdup (values[1]))) : + (tmp != NULL) ? g_strdup (tmp->bgcolor) : NULL; + mc_skin_color->attrs = (items_count > 2 && values[2][0]) ? + mc_skin_color_look_up_alias (mc_skin, g_strstrip (g_strdup (values[2]))) : + (tmp != NULL) ? g_strdup (tmp->attrs) : NULL; + + g_strfreev (values); + + mc_skin_color->pair_index = + tty_try_alloc_color_pair2 (mc_skin_color->fgcolor, mc_skin_color->bgcolor, + mc_skin_color->attrs, FALSE); + + return mc_skin_color; +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +mc_skin_color_set_default_for_terminal (mc_skin_t * mc_skin) +{ + mc_skin_color_t *mc_skin_color; + mc_skin_color = g_try_new0 (mc_skin_color_t, 1); + if (mc_skin_color != NULL) + { + mc_skin_color->fgcolor = g_strdup ("default"); + mc_skin_color->bgcolor = g_strdup ("default"); + mc_skin_color->attrs = NULL; + mc_skin_color->pair_index = + tty_try_alloc_color_pair2 (mc_skin_color->fgcolor, mc_skin_color->bgcolor, + mc_skin_color->attrs, FALSE); + mc_skin_color_add_to_hash (mc_skin, "skin", "terminal_default_color", mc_skin_color); + } +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +mc_skin_color_cache_init (void) +{ + DEFAULT_COLOR = mc_skin_color_get ("skin", "terminal_default_color"); + NORMAL_COLOR = mc_skin_color_get ("core", "_default_"); + MARKED_COLOR = mc_skin_color_get ("core", "marked"); + SELECTED_COLOR = mc_skin_color_get ("core", "selected"); + MARKED_SELECTED_COLOR = mc_skin_color_get ("core", "markselect"); + DISABLED_COLOR = mc_skin_color_get ("core", "disabled"); + REVERSE_COLOR = mc_skin_color_get ("core", "reverse"); + HEADER_COLOR = mc_skin_color_get ("core", "header"); + COMMAND_MARK_COLOR = mc_skin_color_get ("core", "commandlinemark"); + SHADOW_COLOR = mc_skin_color_get ("core", "shadow"); + + COLOR_NORMAL = mc_skin_color_get ("dialog", "_default_"); + COLOR_FOCUS = mc_skin_color_get ("dialog", "dfocus"); + COLOR_HOT_NORMAL = mc_skin_color_get ("dialog", "dhotnormal"); + COLOR_HOT_FOCUS = mc_skin_color_get ("dialog", "dhotfocus"); + COLOR_TITLE = mc_skin_color_get ("dialog", "dtitle"); + + ERROR_COLOR = mc_skin_color_get ("error", "_default_"); + ERROR_FOCUS = mc_skin_color_get ("error", "errdfocus"); + ERROR_HOT_NORMAL = mc_skin_color_get ("error", "errdhotnormal"); + ERROR_HOT_FOCUS = mc_skin_color_get ("error", "errdhotfocus"); + ERROR_TITLE = mc_skin_color_get ("error", "errdtitle"); + + MENU_ENTRY_COLOR = mc_skin_color_get ("menu", "_default_"); + MENU_SELECTED_COLOR = mc_skin_color_get ("menu", "menusel"); + MENU_HOT_COLOR = mc_skin_color_get ("menu", "menuhot"); + MENU_HOTSEL_COLOR = mc_skin_color_get ("menu", "menuhotsel"); + MENU_INACTIVE_COLOR = mc_skin_color_get ("menu", "menuinactive"); + + PMENU_ENTRY_COLOR = mc_skin_color_get ("popupmenu", "_default_"); + PMENU_SELECTED_COLOR = mc_skin_color_get ("popupmenu", "menusel"); + PMENU_TITLE_COLOR = mc_skin_color_get ("popupmenu", "menutitle"); + + BUTTONBAR_HOTKEY_COLOR = mc_skin_color_get ("buttonbar", "hotkey"); + BUTTONBAR_BUTTON_COLOR = mc_skin_color_get ("buttonbar", "button"); + + STATUSBAR_COLOR = mc_skin_color_get ("statusbar", "_default_"); + + GAUGE_COLOR = mc_skin_color_get ("core", "gauge"); + INPUT_COLOR = mc_skin_color_get ("core", "input"); + INPUT_HISTORY_COLOR = mc_skin_color_get ("core", "inputhistory"); + COMMAND_HISTORY_COLOR = mc_skin_color_get ("core", "commandhistory"); + INPUT_MARK_COLOR = mc_skin_color_get ("core", "inputmark"); + INPUT_UNCHANGED_COLOR = mc_skin_color_get ("core", "inputunchanged"); + + HELP_NORMAL_COLOR = mc_skin_color_get ("help", "_default_"); + HELP_ITALIC_COLOR = mc_skin_color_get ("help", "helpitalic"); + HELP_BOLD_COLOR = mc_skin_color_get ("help", "helpbold"); + HELP_LINK_COLOR = mc_skin_color_get ("help", "helplink"); + HELP_SLINK_COLOR = mc_skin_color_get ("help", "helpslink"); + HELP_TITLE_COLOR = mc_skin_color_get ("help", "helptitle"); + + VIEW_NORMAL_COLOR = mc_skin_color_get ("viewer", "_default_"); + VIEW_BOLD_COLOR = mc_skin_color_get ("viewer", "viewbold"); + VIEW_UNDERLINED_COLOR = mc_skin_color_get ("viewer", "viewunderline"); + VIEW_SELECTED_COLOR = mc_skin_color_get ("viewer", "viewselected"); + + EDITOR_NORMAL_COLOR = mc_skin_color_get ("editor", "_default_"); + EDITOR_BOLD_COLOR = mc_skin_color_get ("editor", "editbold"); + EDITOR_MARKED_COLOR = mc_skin_color_get ("editor", "editmarked"); + EDITOR_WHITESPACE_COLOR = mc_skin_color_get ("editor", "editwhitespace"); + EDITOR_RIGHT_MARGIN_COLOR = mc_skin_color_get ("editor", "editrightmargin"); + LINE_STATE_COLOR = mc_skin_color_get ("editor", "editlinestate"); + EDITOR_BACKGROUND = mc_skin_color_get ("editor", "editbg"); + EDITOR_FRAME = mc_skin_color_get ("editor", "editframe"); + EDITOR_FRAME_ACTIVE = mc_skin_color_get ("editor", "editframeactive"); + EDITOR_FRAME_DRAG = mc_skin_color_get ("editor", "editframedrag"); + + BOOK_MARK_COLOR = mc_skin_color_get ("editor", "bookmark"); + BOOK_MARK_FOUND_COLOR = mc_skin_color_get ("editor", "bookmarkfound"); + + DFF_ADD_COLOR = mc_skin_color_get ("diffviewer", "added"); + DFF_CHG_COLOR = mc_skin_color_get ("diffviewer", "changedline"); + DFF_CHH_COLOR = mc_skin_color_get ("diffviewer", "changednew"); + DFF_CHD_COLOR = mc_skin_color_get ("diffviewer", "changed"); + DFF_DEL_COLOR = mc_skin_color_get ("diffviewer", "removed"); + DFF_ERROR_COLOR = mc_skin_color_get ("diffviewer", "error"); +} + +/* --------------------------------------------------------------------------------------------- */ + +static gboolean +mc_skin_color_check_inisection (const gchar * group) +{ + return !((strcasecmp ("skin", group) == 0) || (strcasecmp ("aliases", group) == 0) + || (strcasecmp ("lines", group) == 0) || (strncasecmp ("widget-", group, 7) == 0)); +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +mc_skin_color_check_bw_mode (mc_skin_t * mc_skin) +{ + gchar **groups, **orig_groups; + + if (tty_use_colors () && !mc_global.tty.disable_colors) + return; + + orig_groups = mc_config_get_groups (mc_skin->config, NULL); + + for (groups = orig_groups; *groups != NULL; groups++) + if (mc_skin_color_check_inisection (*groups)) + mc_config_del_group (mc_skin->config, *groups); + + g_strfreev (orig_groups); + + mc_skin_hardcoded_blackwhite_colors (mc_skin); +} + +/* --------------------------------------------------------------------------------------------- */ +/*** public functions ****************************************************************************/ +/* --------------------------------------------------------------------------------------------- */ + +gboolean +mc_skin_color_parse_ini_file (mc_skin_t * mc_skin) +{ + gboolean ret = FALSE; + gsize items_count; + gchar **groups, **orig_groups; + mc_skin_color_t *mc_skin_color; + + mc_skin_color_check_bw_mode (mc_skin); + + orig_groups = mc_config_get_groups (mc_skin->config, &items_count); + if (*orig_groups == NULL) + goto ret; + + /* as first, need to set up default colors */ + mc_skin_color_set_default_for_terminal (mc_skin); + mc_skin_color = mc_skin_color_get_from_ini_file (mc_skin, "core", "_default_"); + if (mc_skin_color == NULL) + goto ret; + + tty_color_set_defaults (mc_skin_color->fgcolor, mc_skin_color->bgcolor, mc_skin_color->attrs); + mc_skin_color_add_to_hash (mc_skin, "core", "_default_", mc_skin_color); + + for (groups = orig_groups; *groups != NULL; groups++) + { + gchar **keys, **orig_keys; + + if (!mc_skin_color_check_inisection (*groups)) + continue; + + orig_keys = mc_config_get_keys (mc_skin->config, *groups, NULL); + + for (keys = orig_keys; *keys != NULL; keys++) + { + mc_skin_color = mc_skin_color_get_from_ini_file (mc_skin, *groups, *keys); + if (mc_skin_color != NULL) + mc_skin_color_add_to_hash (mc_skin, *groups, *keys, mc_skin_color); + } + g_strfreev (orig_keys); + } + + mc_skin_color_cache_init (); + + ret = TRUE; + + ret: + g_strfreev (orig_groups); + return ret; +} + +/* --------------------------------------------------------------------------------------------- */ + +int +mc_skin_color_get (const gchar * group, const gchar * name) +{ + mc_skin_color_t *mc_skin_color; + + mc_skin_color = mc_skin_color_get_with_defaults (group, name); + + return (mc_skin_color != NULL) ? mc_skin_color->pair_index : 0; +} + +/* --------------------------------------------------------------------------------------------- */ |