private static ScrollingDirection GetScrollingDirection(RadDiagram diagram, Point currentPosition)
{
var diagramPosition = diagram.GetTransformedPoint(currentPosition);
if (diagramPosition.Y <= diagram.Viewport.Top)
{
return(ScrollingDirection.Up);
}
else if (diagramPosition.Y >= diagram.Viewport.Bottom)
{
return(ScrollingDirection.Down);
}
else if (diagramPosition.X <= diagram.Viewport.Left)
{
return(ScrollingDirection.Left);
}
else if (diagramPosition.X >= diagram.Viewport.Right)
{
return(ScrollingDirection.Right);
}
else
{
return(ScrollingDirection.None);
}
}
private static ScrollingDirection GetScrollingDirection(RadDiagram diagram, Point currentPosition)
{
var diagramPosition = diagram.GetTransformedPoint(currentPosition);
if (diagramPosition.Y <= diagram.Viewport.Top)
{
return ScrollingDirection.Up;
}
else if (diagramPosition.Y >= diagram.Viewport.Bottom)
{
return ScrollingDirection.Down;
}
else if (diagramPosition.X <= diagram.Viewport.Left)
{
return ScrollingDirection.Left;
}
else if (diagramPosition.X >= diagram.Viewport.Right)
{
return ScrollingDirection.Right;
}
else
{
return ScrollingDirection.None;
}
}