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 #include <gtkmm2ext/pix.h>
   9
  10 namespace Gtkmm2ext {
  11
  12 class PixScroller : public Gtk::DrawingArea
  13 {
  14   public:
  15         PixScroller(Gtk::Adjustment& adjustment, Pix&);
  16
  17
  18         bool on_expose_event (GdkEventExpose*);
  19         bool on_motion_notify_event (GdkEventMotion*);
  20         bool on_button_press_event (GdkEventButton*);
  21         bool on_button_release_event (GdkEventButton*);
  22         void on_size_request (GtkRequisition*);
  23
  24   protected:
  25         Gtk::Adjustment& adj;
  26
  27   private:
  28         Glib::RefPtr<Gdk::Pixmap> rail;
  29         Glib::RefPtr<Gdk::Pixmap> slider;
  30         Glib::RefPtr<Gdk::Bitmap> rail_mask;
  31         Glib::RefPtr<Gdk::Bitmap> slider_mask;
  32         Gdk::Rectangle sliderrect;
  33         Gdk::Rectangle railrect;
  34         GdkWindow* grab_window;
  35         double grab_y;
  36         double grab_start;
  37         int overall_height;
  38         bool dragging;
  39
  40         float default_value;
  41
  42         void adjustment_changed ();
  43 };
  44
  45 } // namespace
  46
  47 #endif /* __gtkmm2ext_pixscroller_h__ */