 import mx.core.LayoutDirection;
 import mx.core.UIComponent;
 import mx.core.UIComponentGlobals;
+import mx.core.mx_internal;
+import mx.effects.easing.Back;
 import mx.events.DataGridEvent;
 import mx.events.SandboxMouseEvent;
 import mx.managers.CursorManager;

                    m.width = dataGrid.width / dataGrid.scaleX - m.x - dataGrid.viewMetrics.right;
                    m.height = dataGrid.height / dataGrid.scaleY - m.x - dataGrid.viewMetrics.bottom;

                    columnDropIndicator.x = xx - columnDropIndicator.width;
                    columnDropIndicator.y = 0;
                    columnDropIndicator.setActualSize(3, dataGrid.height / dataGrid.scaleY);
                }
                break;
            }

import mx.skins.halo.DataGridColumnDropIndicator;
import mx.styles.ISimpleStyleClient;
import mx.styles.StyleManager;

use namespace mx_internal;

