private void DrawingEnded()
{
FGraphEditor.LinkRoot.Remove(FTempPath);
FTempPathStarted = false;
FTempPath = null;
FStartingConnectable = null;
FGraphEditor.NoAwaitingConnections();
}
public override void OnClick(object sender, PInputEventArgs e)
{
base.OnClick(sender, e);
Solid target = FGraphEditor.GetConnectionCandidate(e.Position, FStartingConnectable);
if ((FTempPathStarted) && (e.Button == MouseButtons.Right))
{
// stop drawing path
DrawingEnded();
}
else if ((target == null) && (FTempPath != null))
{
//add linkpoint
FTempPath.AddPoint(e.Position);
}
else if (target != null)
{
var t = target.Connectable;
if (FTempPathStarted)
{
// end link
var s = FTempPath.StartSolid.Connectable;
if ((t.ConnectableType != s.ConnectableType) ||
(s.ConnectableType == ConnectableType.CanBeBoth) ||
(t.ConnectableType == ConnectableType.CanBeBoth))
{
if (t.ConnectableType == ConnectableType.StartingPoint)
{
// end point wants to be starting point
// let's invert the temp path, so that the host can rely on
// Path.Start is a Connectable with ConnectableType.StartingPoint
// Path.End is a Connectable with ConnectableType.EndPoint
FTempPath.Revert(target, out target);
}
FGraphEditor.Host.FinishPath(FTempPath, target.Connectable);
DrawingEnded();
}
}
else
{
// starting link even when mousedown and mouseup positions doesn't match exactly
var x = Math.Pow(e.Position.X - FMouseDownPoint.X, 2);
var y = Math.Pow(e.Position.Y - FMouseDownPoint.Y, 2);
if (Math.Sqrt(x + y) < 5)
{
// start link
FTempPath = new TempPath(null, target);
FTempPathStarted = true;
FStartingConnectable = target.Connectable;
t.DecorateStartingPath(FTempPath);
FGraphEditor.ShowAwaitingConnections(target.Connectable);
FGraphEditor.LinkRoot.Add(FTempPath);
}
}
}
}
