1/* 2 * 3 * Copyright (C) 2018 - Jente Hidskes <hjdskes@gmail.com> 4 * 5 * gitg is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * gitg is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with gitg. If not, see <http://www.gnu.org/licenses/>. 17 */ 18 19namespace Gitg 20{ 21 22public class Theme : Gtk.Widget 23{ 24 private static GLib.Once<Theme> _instance; 25 26 public static unowned Theme instance () 27 { 28 return _instance.once (() => { return new Theme (); }); 29 } 30 31 public bool is_theme_dark() 32 { 33 var settings = Gtk.Settings.get_default(); 34 var theme = Environment.get_variable("GTK_THEME"); 35 36 var dark = settings.gtk_application_prefer_dark_theme || (theme != null && theme.has_suffix(":dark")); 37 38 if (!dark) { 39 var stylecontext = get_style_context(); 40 Gdk.RGBA rgba; 41 var background_set = stylecontext.lookup_color("theme_bg_color", out rgba); 42 43 if (background_set && rgba.red + rgba.green + rgba.blue < 1.0) 44 { 45 dark = true; 46 } 47 } 48 49 return dark; 50 } 51} 52 53} 54 55// ex:ts=4 noet 56