public void GrowNode(ImagePair imagePair)
{
if (IsEmptyLeaf())
{
throw new Exception("Attempted to grow an empty leaf");
}
var imageW = imagePair.Image.Width;
var imageH = imagePair.Image.Height;
var newChild = Clone();
Children.Clear();
Children.Add(newChild);
Image = null;
ImageName = "";
if (Rect.ShouldGrowVertically(imageW, imageH))
{
Children.Add(new Sprite(null, new Rect(Rect.X, Rect.Y + Rect.H, Rect.W, imageH)));
Rect.H += imageH;
}
else
{
Children.Add(new Sprite(null, new Rect(Rect.X + Rect.W, Rect.Y, imageW, Rect.H)));
Rect.W += imageW;
}
Children[1].SplitNode(imagePair);
}
public void SplitNode(ImagePair imagePair)
{
if (!IsLeaf())
{
throw new Exception("Attempted to split non-leaf");
}
var imageW = imagePair.Image.Width;
var imageH = imagePair.Image.Height;
if (!Rect.CanContain(imageW, imageH))
{
throw new Exception("Attempted to place an img in a node it doesn't fit");
}
//if it fits exactly then we are done
if (Rect.IsCongruentWith(imageW, imageH))
{
ImageName = imagePair.Path;
Image = imagePair.Image;
}
else
{
if (Rect.ShouldSplitVertically(imageW, imageH))
{
var vertRects = Rect.SplitVertical(imageH);
var top = new Sprite(null, vertRects[0]);
var bottom = new Sprite(null, vertRects[1]);
Children.Add(top);
Children.Add(bottom);
}
else
{
var horzRects = Rect.SplitHorizontal(imageW);
var left = new Sprite(null, horzRects[0]);
var right = new Sprite(null, horzRects[1]);
Children.Add(left);
Children.Add(right);
}
Children[0].SplitNode(imagePair);
}
}
public Sprite(ImagePair imagePair, Rect rect, List <Sprite> children = null)
{
if (null != imagePair)
{
ImageName = imagePair.Path;
Image = imagePair.Image;
}
else
{
ImageName = "";
Image = null;
}
Rect = rect;
Offset = new Offset(0, 0);
if (null != children)
{
Children = children;
}
else
{
Children = new List <Sprite>();
}
}