protected override void OnMouseUp(MouseEventArgs e)
{
if (mdown.X == e.X && mdown.Y == e.Y)
{
select(hitTest(e.X, e.Y).node, Control.ModifierKeys == Keys.Shift);
}
if (bDragging)
{
bDragging = false;
recalcFocus();
return;
}
if (bLinking)
{
bLinking = false;
Node.Address a = hitTest(e.X, e.Y, false);
Node.Address old = linkTo.node.getProperties()[linkTo.port].input;
if (old != null)
{
Node.disconnect(old.node, old.port, linkTo.node, linkTo.port);
}
if (a.node != null && a.port != null)
{
Node.connect(a.node, a.port, linkTo.node, linkTo.port);
}
Invalidate();
return;
}
base.OnMouseUp(e);
}
protected override void OnMouseDown(MouseEventArgs e)
{
this.Focus();
Node.Address a;
mdown = e.Location;
//if the mouse is over a node, selected it and begin dragging. otherwise do base.
// if shift is selected, toggle selection instead of replacing
if ((a = hitTest(e.X, e.Y, true)).node != null)
{
if (a.port != null)
{
bLinking = true;
ScreenToCanvas(ref mdown);
mdrag = mdown;
linkTo = a;
}
else
{
if (!project.selectedNodes.Contains(a.node))
{
select(a.node, Control.ModifierKeys == Keys.Shift);
}
bDragging = true;
ScreenToCanvas(ref mdown);
}
}
else
{
base.OnMouseDown(e);
}
}