public GridLineController(DesignerCanvas canvas)
{
IsVisible = true;
_canvas = canvas;
_geometry = new StreamGeometry();
GridLines = new ObservableCollection<GridLine>();
GridLines.CollectionChanged += (s, e) => Invalidate();
Invalidate();
}
public SubPlanAdorner(DesignerCanvas designerCanvas)
: base(designerCanvas)
{
}