public bool Compare(ImageData arg)
{
if (ContentType != arg.ContentType)
return false;
if (Image.GetLongLength(0) != arg.Image.GetLongLength(0))
return false;
// Compare the arrays byte by byte
long length = Image.GetLongLength(0);
byte[] image1 = Image;
byte[] image2 = arg.Image;
for (long n = 0; n < length; n++)
if (image1[n] != image2[n])
return false;
return true;
}
// General function for handling images that tries to use an existing image if they are the same
private static ImageData ManageImageCopy(ImagePart oldImage, OpenXmlPart newContentPart, List<ImageData> images)
{
ImageData oldImageData = new ImageData(newContentPart, oldImage);
foreach (ImageData item in images)
{
if (newContentPart != item.ContentPart)
continue;
if (item.Compare(oldImageData))
return item;
}
images.Add(oldImageData);
return oldImageData;
}
