public bool IsDrag(MouseEventArgs e)
{
const int dragThreshold = 4; //Length in px to consider a drag (instead of a click)
var mouseOffset = e.GetClientPos() - cursorStartPos;
return(mouseOffset.GetLength() > dragThreshold);
}
public void OnStartNodeDrag(INode nodeToDrag, MouseEventArgs e)
{
this.nodeToDrag = nodeToDrag;
nodeToDragOutputs = nodeHandler.Tree.Nodes
.SelectMany(node => node.GetAllInputs()
.OfType <InputProcedural>()
.Where(input => input.ConnectedNode == nodeToDrag)).ToList();
cursorStartPos = e.GetClientPos();
nodeStartPos = nodeToDrag.Pos;
}
public void OnDrop(MouseEventArgs e)
{
//Console.WriteLine("Dropping node");
if (nodeToDrag != null)
{
//TODO: Refactor this
if (isDraggingNewNode)
{
isDraggingNewNode = false;
nodeToDrag.Pos += (e.GetClientPos() - cursorStartPos) / ZoomHandler.Zoom;
nodeHandler.Tree.AddNode(nodeToDrag);
}
nodeToDrag = null;
}
}
public void OnStartNodeDrag(NodeViewModel nodeToDrag, MouseEventArgs e, IVirtualStudioController virtualStudioController = null)
{
dragProcess = new NodeDragProcess(0, nodeToDrag, e.GetClientPos(), virtualStudioController);
}