libs/gtkmm2ext/gtkmm2ext/pixscroller.h

   1 #ifndef __gtkmm2ext_pixscroller_h__
   2 #define __gtkmm2ext_pixscroller_h__
   3
   4 #include <gtkmm/drawingarea.h>
   5 #include <gtkmm/adjustment.h>
   6 #include <gdkmm.h>
   7
   8 namespace Gtkmm2ext {
   9
  10 class PixScroller : public Gtk::DrawingArea
  11 {
  12   public:
  13         PixScroller(Gtk::Adjustment& adjustment,
  14                     Glib::RefPtr<Gdk::Pixbuf> slider,
  15                     Glib::RefPtr<Gdk::Pixbuf> rail);
  16
  17         bool on_expose_event (GdkEventExpose*);
  18         bool on_motion_notify_event (GdkEventMotion*);
  19         bool on_button_press_event (GdkEventButton*);
  20         bool on_button_release_event (GdkEventButton*);
  21         bool on_scroll_event (GdkEventScroll*);
  22         void on_size_request (GtkRequisition*);
  23
  24   protected:
  25         Gtk::Adjustment& adj;
  26
  27   private:
  28         Glib::RefPtr<Gdk::Pixbuf> rail;
  29         Glib::RefPtr<Gdk::Pixbuf> slider;
  30         Gdk::Rectangle sliderrect;
  31         Gdk::Rectangle railrect;
  32         GdkWindow* grab_window;
  33         double grab_y;
  34         double grab_start;
  35         int overall_height;
  36         bool dragging;
  37
  38         float default_value;
  39
  40         void adjustment_changed ();
  41 };
  42
  43 } // namespace
  44
  45 #endif /* __gtkmm2ext_pixscroller_h__ */