void OnClickedSelectionButton(object sender, EventArgs ev)
{
var index = Array.IndexOf(new Button[] { NoneButton, CircleButton, TriangleButton, SquareButton }, sender);
var type = (ViewMaskerType)index;
if (_applyToLayout)
{
Stack.ApplyMask(type);
}
else
{
ExampleBoxView.ApplyMask(type);
ButtonView.ApplyMask(type);
LabelView.ApplyMask(type);
ExampleImageview.ApplyMask(type);
}
}