private void leftPanel_Paint(object sender, PaintEventArgs e)
 {
     if (drawingUtils == null)
     {
         return;
     }
     using (var g = new LJD.Graphics(e.Graphics))
         drawingUtils.DrawLeftPanelView(g, leftPanel.PointToClient(arrowsPanel.PointToScreen(new System.Drawing.Point())).ToPoint(), leftPanel.ClientSize.ToSize());
 }
 void PaintLeftPanel(RectangleF dyrtyRect)
 {
     if (drawingUtils == null)
     {
         return;
     }
     using (var g = new LJD.Graphics())
         drawingUtils.DrawLeftPanelView(g,
                                                     //leftPanel.PointToClient(arrowsPanel.PointToScreen(new Point())),
                                        new Point(), // todo
                                        leftPanelView.Frame.Size.ToSizeF().ToSize());
 }