protected override RequestedAction LayoutImage(ImageState s)
{
if (s.sourceBitmap == null) return RequestedAction.None;
//percentpadding. Percentage is 0-100, multiplied by the average of the width and height.
double percentpadding = s.settings.Get<double>("trim.percentpadding", 0) / 100;
int? threshold = s.settings.Get<int>("trim.threshold");
if (threshold != null) {
if (threshold < 0) threshold = 0; if (threshold > 255) threshold = 255;
Rectangle box = new BoundingBoxFinder().FindBoxSobel(s.sourceBitmap, new Rectangle(0, 0, s.sourceBitmap.Width, s.sourceBitmap.Height), (byte)threshold);
//Add padding
int paddingPixels = (int)Math.Ceiling(percentpadding * (box.Width + box.Height) / 2);
box.X = Math.Max(0, box.X - paddingPixels);
box.Y= Math.Max(0, box.Y - paddingPixels);
box.Width = Math.Min(s.sourceBitmap.Width, box.Width + paddingPixels * 2);
box.Height = Math.Min(s.sourceBitmap.Height, box.Height + paddingPixels * 2);
//Adjust s.originalSize so the layout occurs properly.
s.originalSize = box.Size;
s.Data[RectDataKey] = box;
}
return RequestedAction.None;
}
protected override RequestedAction LayoutImage(ImageState s)
{
if (s.sourceBitmap == null)
{
return(RequestedAction.None);
}
//percentpadding. Percentage is 0-100, multiplied by the average of the width and height.
double percentpadding = s.settings.Get <double>("trim.percentpadding", 0) / 100;
int?threshold = s.settings.Get <int>("trim.threshold");
if (threshold != null)
{
if (threshold < 0)
{
threshold = 0;
}
if (threshold > 255)
{
threshold = 255;
}
Rectangle box = new BoundingBoxFinder().FindBoxSobel(s.sourceBitmap, new Rectangle(0, 0, s.sourceBitmap.Width, s.sourceBitmap.Height), (byte)threshold);
//Add padding
int paddingPixels = (int)Math.Ceiling(percentpadding * (box.Width + box.Height) / 2);
int leftPadding = Math.Min(paddingPixels, box.X);
int topPadding = Math.Min(paddingPixels, box.Y);
box.X = box.X - leftPadding;
box.Y = box.Y - topPadding;
box.Width = Math.Min(s.sourceBitmap.Width - box.X, box.Width + paddingPixels + leftPadding);
box.Height = Math.Min(s.sourceBitmap.Height - box.Y, box.Height + paddingPixels + topPadding);
//Adjust s.originalSize so the layout occurs properly.
s.originalSize = box.Size;
s.Data[RectDataKey] = box;
}
return(RequestedAction.None);
}