private void DrawGraph(bool selected)
{
if (Graph == null)
{
return;
}
foreach (var node in Graph.Nodes.Where(x => selected == Selector.IsSelected(x)))
{
TinyGUI.DrawNode(node, selected, Graph.HasInEdge(node), Graph.HasOutEdge(node));
}
foreach (var edge in Graph.Edges.Where(x => selected == Selector.IsSelected(x)))
{
var @out = TinyGUI.GetOutRect(Graph.GetNode(edge.Out));
var @in = TinyGUI.GetInRect(Graph.GetNode(edge.In));
if (TinyGUI.DrawEdge(@out, @in, selected))
{
Selector.AddSingle(edge);
}
}
}
private bool ProcessMouseDown(Event @event)
{
if (@event.button == 1)
{
//Clean up selection on right mouse click
_selector.Clean();
// _newEdge = EditingEdge.Empty;
return(true);
}
if (@event.button != 0)
{
return(false);
}
var node = _graph.GetNodeUnder(Zoomed(CurrentPosition), _selector);
if (node == default)
{
_selector.Clean();
MultiSelectionOn = true;
return(false);
}
//Try Select node or edge on left mouse click
var outRect = TinyGUI.GetOutRect(node);
NewEdge = outRect.Contains(Zoomed(CurrentPosition));
if (NewEdge)
{
StartPosition = outRect.center / ZoomOffset;
}
_selector.AddSingle(node);
return(true);
}