protected override string GetReadableKey(InputKey key)
{
var keycode = SDL.SDL_GetKeyFromScancode(key.ToScancode());
// early return if unknown. probably because key isn't a keyboard key, or doesn't map to an `SDL_Scancode`.
if (keycode == SDL.SDL_Keycode.SDLK_UNKNOWN)
{
return(base.GetReadableKey(key));
}
string name;
// overrides for some keys that we want displayed differently from SDL_GetKeyName().
if (TryGetNameFromKeycode(keycode, out name))
{
return(name);
}
name = SDL.SDL_GetKeyName(keycode);
// fall back if SDL couldn't find a name.
if (string.IsNullOrEmpty(name))
{
return(base.GetReadableKey(key));
}
// true if SDL_GetKeyName() returned a proper key/scancode name.
// see https://github.com/libsdl-org/SDL/blob/release-2.0.16/src/events/SDL_keyboard.c#L1012
if (((int)keycode & SDL.SDLK_SCANCODE_MASK) != 0)
{
return(name);
}
// SDL_GetKeyName() returned a unicode character that would be produced if that key was pressed.
// consumers expect an uppercase letter.
return(name.ToUpper());
}