+ sigc::signal<std::string, int, int> signal_tooltip;
+
+private:
+ Resources &resources;
+ Input::Keyboard *keyboard = nullptr;
+ InputMethod *input_method = nullptr;
+ Input::Mouse *mouse = nullptr;
+ Input::Touchscreen *touchscreen = nullptr;
+ bool own_input = false;
+ Label *lbl_tooltip = nullptr;
+ int pointer_x = 0;
+ int pointer_y = 0;
+ Time::TimeStamp tooltip_timeout;
+ Time::TimeStamp last_tick;
+ Widget *tooltip_target = nullptr;
+ Msp::GL::Camera camera;
+ Msp::GL::Program *shprog = nullptr;
+ Msp::GL::Blend blend;
+
+public:
+ /** Creates a Root widget for a window. The geometry is set to match the
+ window's size, and input devices are created automatically. */
+ Root(Resources &, Graphics::Window &);
+
+ /** Creates a Root widget with custom input devices. If window is not null,
+ it is used to set the widget's initial geometry. */
+ Root(Resources &, Graphics::Window *, Input::Keyboard *, Input::Mouse *, Input::Touchscreen * = nullptr);
+ virtual ~Root();
+
+ virtual const char *get_class() const { return "root"; }
+
+ Resources &get_resources() const { return resources; }
+ virtual unsigned get_width() const { return geom.w; }
+ virtual unsigned get_height() const { return geom.h; }
+
+ void tick();
+ virtual void setup_frame(GL::Renderer &);
+ virtual void render(GL::Renderer &, GL::Tag = GL::Tag()) const;
+