/// <summary>
/// Constructs an HG-3 attribute with the specified Id and <see cref="HG3ATS"/>.
/// </summary>
/// <param name="id">The identifier for the attribute.</param>
/// <param name="ats">The HG3ATS struct containing attribute information.</param>
/// <param name="hg3Frame">The HG-3 frame containing this attribute.</param>
internal Hg3Attribute(int id, HG3ATS ats, HgxFrame hg3Frame)
{
Hg3Frame = hg3Frame;
Id = id;
X = ats.X;
Y = ats.Y;
Width = ats.Width;
Height = ats.Height;
Color = Color.FromArgb(ats.Color);
}
internal static void ExtractImage(Stream stream, HgxFrame frame, string pngFile, HgxOptions options)
{
switch (frame.HgxType)
{
case HgxFormat.Hg2: ExtractHg2ImageFromFrame(stream, frame, pngFile, options); break;
case HgxFormat.Hg3: ExtractHg3ImageFromFrame(stream, frame, pngFile, options); break;
default: throw new InvalidOperationException($"{nameof(HgxFrame.HgxType)} is not valid!");
}
}
private static void ExtractHg3ImageFromFrame(Stream stream, HgxFrame frame, string pngFile, HgxOptions options)
{
BinaryReader reader = new BinaryReader(stream);
stream.Position = frame.FrameOffset;
HGXHDR hdr = new HGXHDR {
Type = frame.HgxImage.Type
};
Hg3FrameInfo frameInfo = ReadHg3FrameInfo(reader, hdr, true);
ExtractHg3Image(reader, frameInfo, options, pngFile);
}
