protected override void SaveImageSettingsCore(CodedImage image)
{
base.SaveImageSettingsCore(image);
image.AdditionalData[nameof(CropKind)] = CropKind.ToString();
if (CropKind != ImageCropper.CropKind.None)
{
image.AdditionalData[nameof(CropRect)] = $"{CropRect.Left},{CropRect.Top},{CropRect.Width},{CropRect.Height}";
}
}
/// <summary>
/// Creates cropped copy of source picture.
/// </summary>
/// <param name="sourceImage">Source picture instance.</param>
/// <param name="cropRect">Rectange with cropping bounds.</param>
/// <param name="cropKind">Cropping method.</param>
/// <param name="destImage">Destionation <see cref="IndexedImage"/> object or null.</param>
/// <returns>New or updated <see cref="IndexedImage"/> object with cropped picture.</returns>
public static IndexedImage Crop(IndexedImage sourceImage, Rectangle cropRect, CropKind cropKind = CropKind.Rectangle, IndexedImage destImage = null)
{
Debug.Assert(destImage != sourceImage, "It's impossible to crop image into itself.");
if (destImage == null)
{
destImage = new IndexedImage();
}
if (cropKind == CropKind.None)
{
destImage.Size = sourceImage.Size;
sourceImage.Pixels.CopyTo(destImage.Pixels, 0);
}
else
{
destImage.Size = new Size(cropRect.Width, cropRect.Height);
switch (cropKind)
{
case CropKind.Arc:
CropArc(sourceImage.Pixels, destImage.Pixels, sourceImage.Size, cropRect);
break;
case CropKind.Rectangle:
default:
CropRect(sourceImage.Pixels, destImage.Pixels, sourceImage.Size, cropRect);
break;
}
}
return(destImage);
}