notcurses/include/ncpp/Palette256.hh
Marek Habersack e429724287 [C++] API sync + some (breaking) changes
Added:

 * Plane: gradient (`ncplane_gradient`)
 * Plane: gradient_sized (`ncplane_gradient_sized`)
 * NotCurses: drop_planes (`ncplane_drop_planes`)
 * NcReel: constructor which takes `Plane&`
 * Visual: constructors which take `Plane const*`, `Plane&` and `Plane const&`)
 * ncpp_build: a nonsensical "demo" which exists purely to test whether
   the C++ builds and does absolutely nothing interesting.

Broke:
 * All exceptions throw temporary objects instead of allocated
   instances. Less typing in `catch` :P (and more conventional)
2020-02-18 12:30:13 -05:00

66 lines
1.3 KiB
C++

#ifndef __NCPP_PALETTE256_HH
#define __NCPP_PALETTE256_HH
#include "Root.hh"
#include "_helpers.hh"
namespace ncpp
{
class NCPP_API_EXPORT Palette256 : public Root
{
public:
Palette256 ()
{
palette = palette256_new (get_notcurses ());
if (palette == nullptr)
throw init_error ("notcurses failed to create a new palette");
}
~Palette256 ()
{
palette256_free (palette);
}
operator palette256* () noexcept
{
return palette;
}
operator palette256 const* () const noexcept
{
return palette;
}
bool set (int idx, int r, int g, int b) const noexcept
{
return palette256_set_rgb (palette, idx, r, g, b) != -1;
}
bool set (int idx, unsigned rgb) const noexcept
{
return palette256_set (palette, idx, rgb) != -1;
}
bool get (int idx, unsigned *r, unsigned *g, unsigned *b) const
{
if (r == nullptr)
throw invalid_argument ("'r' must be a valid pointer");
if (g == nullptr)
throw invalid_argument ("'g' must be a valid pointer");
if (b == nullptr)
throw invalid_argument ("'b' must be a valid pointer");
return get (idx, *r, *g, *b);
}
bool get (int idx, unsigned &r, unsigned &g, unsigned &b) const noexcept
{
return palette256_get_rgb (palette, idx, &r, &g, &b) != -1;
}
private:
palette256 *palette;
};
}
#endif