* @file gtkstyle.c GTK+ Style utility functions * Pidgin is the legal property of its developers, whose names are too numerous * to list here. Please refer to the COPYRIGHT file distributed with this * This program is free software; you can redistribute it and/or modify * under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * This program 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, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA static gboolean dark_mode_cache = FALSE; pidgin_style_is_dark(GtkStyle *style) { bg = style->base[GTK_STATE_NORMAL]; if (bg.red != 0xFFFF || bg.green != 0xFFFF || bg.blue != 0xFFFF) { dark_mode_cache = ((int) bg.red + (int) bg.green + (int) bg.blue) < (65536 * 3 / 2); pidgin_style_adjust_contrast(GtkStyle *style, GdkRGBA *rgba) { if (pidgin_style_is_dark(style)) { gtk_rgb_to_hsv(rgba->red, rgba->green, rgba->blue, &h, &s, &v); gtk_hsv_to_rgb(h, s, v, &rgba->red, &rgba->green, &rgba->blue);