private void SelectNodesByRect(IGraphDrawerSystem graphDrawerSystem, Rect selection, Vector2 scroll)
{
selection.position -= scroll;
var nodesUnderRect = graphDrawerSystem.GetNodeDrawInfoByRect(selection);
graphDrawerSystem.Select(nodesUnderRect);
}
private void TryCreateArc(IGraphDrawerSystem graphDrawerSystem, DrawingContext drawingContext)
{
var graphContext = GraphContext.Current;
INodeDrawInfo nodeDrawInfo;
if (graphDrawerSystem.GetNodeDrawInfoByPosition(drawingContext.GetMousePosition(), out nodeDrawInfo))
{
var nodeTo = nodeDrawInfo;
graphContext.AddArc(graphDrawerSystem.GetNode(_nodeFrom), graphDrawerSystem.GetNode(nodeTo));
}
}
