public Desk GetWrapNeighbor(Wnck.MotionDirection direction)
{
Desk desk;
wrapneighbors.TryGetValue(direction, out desk);
return(desk);
}
public void SetNeighbor(Wnck.MotionDirection direction, Desk newneighbor)
{
Desk oldneighbor = GetNeighbor(direction);
if (oldneighbor != null && oldneighbor != newneighbor)
{
neighbors.Remove(direction);
if (oldneighbor.GetNeighbor(OppositeDirection(direction)) == this)
{
oldneighbor.SetNeighbor(OppositeDirection(direction), null);
}
}
if (oldneighbor != newneighbor && newneighbor != null)
{
neighbors.Add(direction, newneighbor);
if (GetNeighbor(OppositeDirection(direction)) == null)
{
Desk oldwrapneighbor = newneighbor.GetWrapNeighbor(OppositeDirection(direction));
if (oldwrapneighbor != null)
{
SetWrapNeighbor(OppositeDirection(direction), oldwrapneighbor);
}
else
{
SetWrapNeighbor(OppositeDirection(direction), newneighbor);
}
}
newneighbor.SetNeighbor(OppositeDirection(direction), this);
}
}
public static Wnck.MotionDirection OppositeDirection(Wnck.MotionDirection direction)
{
switch (direction)
{
case MotionDirection.Down: return(MotionDirection.Up);
case MotionDirection.Up: return(MotionDirection.Down);
case MotionDirection.Left: return(MotionDirection.Right);
case MotionDirection.Right:
default: return(MotionDirection.Left);
}
}
public static Wnck.MotionDirection AlternateMovingDirection(Wnck.MotionDirection direction)
{
switch (direction)
{
case MotionDirection.Down: return(MotionDirection.Right);
case MotionDirection.Up: return(MotionDirection.Left);
case MotionDirection.Left: return(MotionDirection.Up);
case MotionDirection.Right:
default: return(MotionDirection.Down);
}
}
bool SwitchDesk(Wnck.MotionDirection direction)
{
Desk activedesk = Desks.Find(desk => desk.IsActive);
Desk nextdesk = activedesk.GetNeighbor(direction);
if (WrappedScrolling)
{
// Walk through the columns/rows and jump between [1,1] and [n,m]
Desk tmp = activedesk.GetWrapNeighbor(direction);
if (tmp != null && (nextdesk = tmp.GetNeighbor(Desk.AlternateMovingDirection(direction))) == null)
{
if ((nextdesk = tmp.GetWrapNeighbor(Desk.AlternateMovingDirection(direction))) == null)
{
nextdesk = tmp;
}
}
}
if (nextdesk != null)
{
nextdesk.Activate();
return(true);
}
return(false);
}