private void SetColumns()
{
var starAuto = new GridLength[] { new GridLength(1, GridUnitType.Star), GridLength.Auto };
var autoStar = starAuto.Reverse();
switch (Direction)
{
case FlowDirection.RightToLeft:
SetColumnDefinitions((GetTemplateChild("root") as Grid).ColumnDefinitions, starAuto);
SetColumnDefinitions((GetTemplateChild("side") as Grid).ColumnDefinitions, autoStar);
Grid.SetColumn((GetTemplateChild("rect") as FrameworkElement), 1);
Grid.SetColumn((GetTemplateChild("viewbox") as FrameworkElement), 0);
Grid.SetColumn((GetTemplateChild("side") as FrameworkElement), 1);
Grid.SetColumn((GetTemplateChild("RootGrid") as FrameworkElement), 0);
break;
case FlowDirection.LeftToRight:
SetColumnDefinitions((GetTemplateChild("root") as Grid).ColumnDefinitions, autoStar);
SetColumnDefinitions((GetTemplateChild("side") as Grid).ColumnDefinitions, starAuto);
Grid.SetColumn((GetTemplateChild("rect") as FrameworkElement), 0);
Grid.SetColumn((GetTemplateChild("viewbox") as FrameworkElement), 1);
Grid.SetColumn((GetTemplateChild("side") as FrameworkElement), 0);
Grid.SetColumn((GetTemplateChild("RootGrid") as FrameworkElement), 1);
break;
}
}