public ImageType DetectImageType(Stream stream)
{
ImageType whatIs = ImageType.none;
if (ImagePNG.itsMyFormat(stream))
{
whatIs = ImageType.png;
}
else if (ImageBMP.itsMyFormat(stream))
{
whatIs = ImageType.bmp;
}
else if (ImageGIF.itsMyFormat(stream))
{
whatIs = ImageType.gif;
}
else
{
throw new Exception("тут шото не так");
}
return(whatIs);
}
public ImageObject makeImageObject(ImageType imageType, Stream stream)
{
ImageObject res;
switch (imageType)
{
case ImageType.png:
res = new ImagePNG(stream);
break;
case ImageType.bmp:
res = new ImageBMP(stream);
break;
case ImageType.gif:
res = new ImageGIF(stream);
break;
default:
throw new ArgumentOutOfRangeException(nameof(imageType), imageType, null);
}
return(res);
}