Progbar.hh

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#ifndef __NCPP_PROGBAR_HH
#define __NCPP_PROGBAR_HH
 
#include <exception>
#include <notcurses/notcurses.h>
 
#include "NotCurses.hh"
#include "Plane.hh"
 
namespace ncpp
{
    class NCPP_API_EXPORT Progbar : public Root
    {
    public:
        Progbar (Plane& n, const ncprogbar_options* opts)
            : Root (nullptr)
        {
            if (opts == nullptr) {
                throw invalid_argument ("Argument 'opts' must be a valid pointer");
            }
 
            progbar = ncprogbar_create (n, opts);
            if (progbar == nullptr) {
                throw init_error ("Notcurses failed to create ncprogbar");
            }
        }
 
        ~Progbar ()
        {
            if (!is_notcurses_stopped ()) {
                ncprogbar_destroy (progbar);
            }
        }
 
        Plane* get_plane () const noexcept
        {
            ncplane *ret = ncprogbar_plane (progbar);
            if (ret == nullptr) {
                return nullptr;
            }
 
            return Plane::map_plane (ret);
        }
 
        void set_progress (double p) const noexcept
        {
            ncprogbar_set_progress (progbar, p);
        }
 
        double get_progress () const noexcept
        {
            return ncprogbar_progress (progbar);
        }
 
    private:
        ncprogbar *progbar = nullptr;
    };
}
 
#endif // __NCPP_PROGBAR_HH