/// <summary> /// Gets all photocopiers, which in ( layer and children )'s style manager. /// </summary> /// <param name="layerages"> The layerages. </param> /// <returns> The yield photocopiers. </returns> public static IEnumerable <Photocopier> GetPhotocopiers(IEnumerable <Layerage> layerages) { foreach (Layerage layerage in layerages) { ILayer layer = layerage.Self; foreach (Photocopier photocopier in LayerageCollection.GetPhotocopiers(layerage.Children)) { yield return(photocopier); } //ImageLayer if (layer.Type == LayerType.Image) { ImageLayer imageLayer = (ImageLayer)layer; yield return(imageLayer.Photocopier); } //Fill if (layer.Style.Fill.Type == BrushType.Image) { yield return(layer.Style.Fill.Photocopier); } //Stroke if (layer.Style.Stroke.Type == BrushType.Image) { yield return(layer.Style.Stroke.Photocopier); } } }