private static void RecursiveMoveLeaf(Brother brother, int distanceInXDirection, int distanceInYDirection)
{
if( brother.Label.Parent != null )
{
brother.Label.Location = new Point( brother.Label.Left + distanceInXDirection,
brother.Label.Top + distanceInYDirection );
}
if( brother.HasRightSibling() )
{
RecursiveMoveLeaf( (Brother) brother.GetRightSibling(), distanceInXDirection, distanceInYDirection );
}
if( brother.HasChild() )
{
RecursiveMoveLeaf( (Brother) brother.GetFirstChild(), distanceInXDirection, distanceInYDirection );
}
}
private void RecursiveCaptureLeaf(Brother brother, MouseEventArgs mouseEvent)
{
if( brother.Label.Parent == null ) return;
brother.lastPoint = mouseEvent.Location;
brother.Label.BringToFront();
if( brother.HasRightSibling() )
{
RecursiveCaptureLeaf( (Brother) brother.GetRightSibling(), mouseEvent );
}
if( brother.HasChild() )
{
RecursiveCaptureLeaf( (Brother) brother.GetFirstChild(), mouseEvent );
}
}
private void SwapChildOrder(Brother left, Brother right)
{
if( !left.HasParent() ) return;
if( !right.HasParent() ) return;
if( (Brother) left.GetParent( true ) != (Brother) right.GetParent( true ) ) return;
if( (Brother) left.GetParent( true ) != this ) return;
if( !left.HasRightSibling( true ) ) return;
if( !right.HasLeftSibling( true ) ) return;
if( (Brother) left.GetRightSibling( true ) != right ) return;
if( (Brother) right.GetLeftSibling( true ) != left ) return;
if( left == (Brother) GetFirstChild( true ) )
{
SetChild( right );
}
right.SetLeftSibling( left.GetLeftSibling( true ) );
left.SetRightSibling( right.GetRightSibling( true ) );
if( right.HasRightSibling( true ) )
{
((Brother) right.GetRightSibling( true )).SetLeftSibling( left );
}
if( left.HasLeftSibling( true ) )
{
((Brother) left.GetLeftSibling( true )).SetRightSibling( right );
}
left.SetLeftSibling( right );
right.SetRightSibling( left );
}