public CanvasHolder(Canvas canvas)
{
var canvasDrawables = canvas.Drawbles;
translation = canvas.Translation;
List <NodeHolder> nodeHoldersList = new List <NodeHolder>();
List <NodeRingHolder> nodeRingHoldersList = new List <NodeRingHolder>();
List <WireHolder> wireHoldersList = new List <WireHolder>();
IDGenerator idGenerator = new IDGenerator();
foreach (Drawable d in canvasDrawables)
{
if (d.GetType() == typeof(Node))
{
Node node = (Node)d;
ID nodeId = idGenerator.Add(node);
List <Drawable> nodeElements = node.Elements;
int[] nodeHolderElements = new int[nodeElements.Count];
for (int i = 0; i < nodeElements.Count; i++)
{
NodeRing nodeRing = (NodeRing)nodeElements[i];
ID nodeRingId = idGenerator.Add(nodeRing);
nodeHolderElements[i] = nodeRingId.value;
nodeRingHoldersList.Add(new NodeRingHolder(nodeRingId.value, nodeId.value, nodeRing.Title, nodeRing.Color, nodeRing.Direction));
}
nodeHoldersList.Add(new NodeHolder(nodeId.value, node.BoundingBox.X, node.BoundingBox.Y, node.BoundingBox.Width, node.Title, nodeHolderElements));
}
}
foreach (Drawable d in canvasDrawables)
{
if (d.GetType() == typeof(Wire))
{
Wire wire = (Wire)d;
ID wireId = idGenerator.Add(wire);
wireHoldersList.Add(new WireHolder(wireId.value, idGenerator.Find(wire.Start.Drawable).value, idGenerator.Find(wire.End.Drawable).value));
}
}
nodeHolders = nodeHoldersList.ToArray();
nodeRingHolders = nodeRingHoldersList.ToArray();
wireHolders = wireHoldersList.ToArray();
}