class InsetCollapsible;
class InsetCommand;
class InsetGraphics;
+class InsetIndex;
class InsetIterator;
class InsetLayout;
class InsetList;
virtual InsetCommand const * asInsetCommand() const { return nullptr; }
/// is this inset based on the InsetArgument class?
virtual InsetArgument const * asInsetArgument() const { return nullptr; }
+ /// is this inset based on the InsetIndex class?
+ virtual InsetIndex const * asInsetIndex() const { return nullptr; }
/// is this inset based on the InsetGraphics class?
virtual InsetGraphics * asInsetGraphics() { return nullptr; }
/// is this inset based on the InsetGraphics class?