/** Emitted when something about a piece of our content has changed;
* these emissions include when the position of the content changes.
* Third parameter is true if signals are currently being emitted frequently.
*/
mutable boost::signals2::signal<void (boost::weak_ptr<Content>, int, bool)> ContentChanged;
/** Emitted when something about a piece of our content has changed;
* these emissions include when the position of the content changes.
* Third parameter is true if signals are currently being emitted frequently.
*/
mutable boost::signals2::signal<void (boost::weak_ptr<Content>, int, bool)> ContentChanged;