internal Surface(IFont font, string text, Color color, int wrapLength)
{
if (font == null)
{
throw new ArgumentNullException(nameof(font));
}
// Only check null instead of Empty/Whitespace because SDL allows everything but null for rendering fonts.
if (text == null)
{
throw new ArgumentNullException(nameof(text));
}
if (wrapLength < 0)
{
throw new ArgumentOutOfRangeException(nameof(wrapLength), "Wrap length must be greater than or equal to 0.");
}
Type = SurfaceType.Text;
SDL.SDL_Color rawColor = new SDL.SDL_Color()
{
r = color.R, g = color.G, b = color.B
};
IntPtr unsafeHandle = IntPtr.Zero;
if (wrapLength > 0)
{
unsafeHandle = SDL_ttf.TTF_RenderText_Blended_Wrapped(font.Handle, text, rawColor, (uint)wrapLength);
}
else
{
unsafeHandle = SDL_ttf.TTF_RenderText_Blended(font.Handle, text, rawColor);
}
if (unsafeHandle == IntPtr.Zero)
{
throw new InvalidOperationException($"Error while loading text surface: {SDL.SDL_GetError()}");
}
safeHandle = new SafeSurfaceHandle(unsafeHandle);
GetSurfaceMetaData();
}
internal Surface(string filePath, SurfaceType surfaceType)
{
if (String.IsNullOrEmpty(filePath))
{
throw new ArgumentNullException(nameof(filePath));
}
FilePath = filePath;
Type = surfaceType;
IntPtr unsafeHandle = SDL_image.IMG_Load(FilePath);
if (unsafeHandle == IntPtr.Zero)
{
throw new InvalidOperationException($"Error while loading image surface: {SDL.SDL_GetError()}");
}
safeHandle = new SafeSurfaceHandle(unsafeHandle);
GetSurfaceMetaData();
}
