public void ShowLayer(int layerPos, bool doShow)
{
if (layerPos < 0 && layerPos >= _ParentGrid.Children.Count)
{
return;
}
FgLayer layer = _ParentGrid.Children[layerPos] as FgLayer;
layer.Visibility = doShow ? Visibility.Visible : Visibility.Hidden;
}
private void EnableLayerSelectively(int layerPos)
{
for (int i = 0; i < _ParentGrid.Children.Count; i++)
{
FgLayer layer = _ParentGrid.Children[i] as FgLayer;
layer.Visibility =
(layerPos == (int)SelectiveLayerEnableProperty.DefaultMetadata.DefaultValue
? Visibility.Visible
: (layerPos == i
? Visibility.Visible
: Visibility.Hidden
)
);
}
}
private void SetPropertyValuesInLayers(string explicitAttrString, string readyMadeAttrString, [CallerMemberName] string propertyName = "")
{
PropertyInfo layerPropInfo = typeof(FgLayer).GetProperty(propertyName);
int layerNo = 0;
foreach (var effectivePerLayerValue in ComputeEffectivePerLayerValues(readyMadeAttrString, explicitAttrString))
{
FgLayer layer = GetOrCreateNthLayer(layerNo);
layerPropInfo.SetValue(layer, effectivePerLayerValue);
layerNo++;
}
if (SelectiveLayerEnable != (int)SelectiveLayerEnableProperty.DefaultMetadata.DefaultValue)
{
EnableLayerSelectively(SelectiveLayerEnable);
}
}
// see FontogramBaseProps.cs, generated from FontogramBaseProps.tt
#endregion
private FgLayer GetOrCreateNthLayer(int n)
{
if (n < _ParentGrid.Children.Count)
{
return(_ParentGrid.Children[n] as FgLayer);
}
if (n > _ParentGrid.Children.Count)
{
return(null);
}
// 'n' is 1 past the end of the current list -> add new layer
FgLayer newLayer = new FgLayer();
_ParentGrid.Children.Add(newLayer);
return(newLayer);
}