Widget.hh

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#ifndef __NCPP_WIDGET_HH
#define __NCPP_WIDGET_HH
 
#include "Root.hh"
#include "Plane.hh"
 
namespace ncpp
{
    class NCPP_API_EXPORT Widget : public Root
    {
    protected:
        explicit Widget (NotCurses *ncinst)
            : Root (ncinst)
        {}
 
        void ensure_valid_plane (Plane *plane) const
        {
            if (plane == nullptr)
                throw invalid_argument ("'plane' must be a valid pointer");
            ensure_valid_plane (*plane);
        }
 
        void ensure_valid_plane (Plane &plane) const
        {
            if (!plane.is_valid ())
                throw invalid_argument ("Invalid Plane object passed in 'plane'. Widgets must not reuse the same plane.");
        }
 
        void take_plane_ownership (Plane *plane) const
        {
            if (plane == nullptr)
                return;
 
            take_plane_ownership (*plane);
        }
 
        void take_plane_ownership (Plane &plane) const
        {
            plane.release_native_plane ();
        }
    };
}
#endif // __NCPP_WIDGET_HH