public RawBitmap Snip(RawBitmap bitmap, Rectangle rect)
{
var target = new RawBitmap(rect.Width, rect.Height);
using (var sourceAdapter = _gdiFactory.CreateAdapter(bitmap))
using (var targetAdapter = _gdiFactory.CreateAdapter(target))
using (var targetGraphics = _gdiFactory.CreateGraphics(targetAdapter.Bitmap))
{
targetGraphics.DrawImage(
sourceAdapter.Bitmap,
new Rectangle(0, 0, rect.Width, rect.Height),
rect,
GraphicsUnit.Pixel);
}
return(target);
}
public void Write(Stream stream, IRawBitmap rawBitmap)
{
if (!(rawBitmap is RawBitmap rawBitmapImpl))
{
throw new Exception("Can only work with implementations of RawBitmap for now..");
}
using (var adapter = _gdiFactory.CreateAdapter(rawBitmapImpl))
using (var output = _gdiFactory.CreateBitmap(rawBitmap.Width, rawBitmap.Height))
using (var g = _gdiFactory.CreateGraphics(output))
{
g.DrawImage(adapter.Bitmap, 0, 0);
output.Save(stream, ImageFormat.Png);
}
}
public RawBitmap Read(Stream stream)
{
using (var source = new Bitmap(stream))
{
var result = new RawBitmap
{
Width = source.Width,
Height = source.Height,
Data = new int[source.Width * source.Height]
};
using (var adapter = _gdiFactory.CreateAdapter(result))
using (var g = _gdiFactory.CreateGraphics(adapter.Bitmap))
{
g.DrawImage(source, 0, 0);
}
return(result);
}
}