1 /* 2 * Copyright (C) 2013-2016 Paul Davis <paul@linuxaudiosystems.com> 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License along 15 * with this program; if not, write to the Free Software Foundation, Inc., 16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 17 */ 18 19 #ifndef __libgtkmm2ext_visibility_tracker__ 20 #define __libgtkmm2ext_visibility_tracker__ 21 22 #include <gdk/gdkevents.h> 23 24 #include "gtkmm2ext/visibility.h" 25 26 namespace GTK { 27 class Window; 28 } 29 30 namespace Gtkmm2ext { 31 32 class LIBGTKMM2EXT_API VisibilityTracker : public virtual sigc::trackable { 33 public: 34 VisibilityTracker (Gtk::Window&); ~VisibilityTracker()35 virtual ~VisibilityTracker() {} 36 37 static void set_use_window_manager_visibility (bool); use_window_manager_visibility()38 static bool use_window_manager_visibility() { return _use_window_manager_visibility; } 39 void cycle_visibility (); 40 41 bool fully_visible() const; 42 bool not_visible() const; 43 bool partially_visible() const; 44 window()45 Gtk::Window& window () const { return _window; } 46 47 private: 48 Gtk::Window& _window; 49 GdkVisibilityState _visibility; 50 51 static bool _use_window_manager_visibility; 52 53 bool handle_visibility_notify_event (GdkEventVisibility*); 54 }; 55 56 } 57 58 #endif /* __libgtkmm2ext_visibility_tracker__ */ 59