private bool ConsistencyCheckPngToShape(IEnumerable<string> pngShapes, PowerPointSlide category)
{
// if some png could not be found in shape gallery, we will delete it
// to save space
var shapeLost = false;
foreach (var pngShape in pngShapes)
{
var shapeName = System.IO.Path.GetFileNameWithoutExtension(pngShape);
var searchPattern = GenereateNameSearchPattern(shapeName);
var found = category.HasShapeWithRule(searchPattern);
if (!found)
{
shapeLost = true;
File.Delete(pngShape);
}
}
return shapeLost;
}