#define SG_PROPERTY_BASED_ELEMENT_HXX_
#include <simgear/props/props.hxx>
-
-#include <boost/call_traits.hpp>
-#include <boost/shared_ptr.hpp>
-#include <boost/weak_ptr.hpp>
-
+#include <simgear/structure/SGWeakReferenced.hxx>
namespace simgear
{
- class PropertyBasedElement;
- typedef boost::shared_ptr<PropertyBasedElement> PropertyBasedElementPtr;
- typedef boost::weak_ptr<PropertyBasedElement> PropertyBasedElementWeakPtr;
-
/**
* Base class for a property controlled element
*/
class PropertyBasedElement:
- public SGPropertyChangeListener
+ public SGPropertyChangeListener,
+ public SGWeakReferenced
{
public:
PropertyBasedElement(SGPropertyNode* node);
virtual ~PropertyBasedElement();
+ /**
+ * Remove the property listener of the element.
+ *
+ * You will need to call the appropriate methods (#childAdded,
+ * #childRemoved, #valueChanged) yourself to ensure the element still
+ * receives the needed events.
+ */
+ void removeListener();
+
+ /**
+ * Destroys this element (removes node from property tree)
+ */
+ void destroy();
+
virtual void update(double delta_time_sec) = 0;
SGConstPropertyNode_ptr getProps() const;
template<class T>
void set( const std::string& name,
- typename boost::call_traits<T>::param_type val )
+ const T& val )
{
setValue(_node->getNode(name, true), val);
}
template<class T>
T get( const std::string& name,
- typename boost::call_traits<T>::param_type def = T() )
+ const T& def = T() )
{
SGPropertyNode const* child = _node->getNode(name);
if( !child )
return getValue<T>(child);
}
- virtual void setSelf(const PropertyBasedElementPtr& self);
+ // Unshadow what we have just hidden...
+ using SGWeakReferenced::get;
+
+ virtual void onDestroy() {};
protected:
SGPropertyNode_ptr _node;
- PropertyBasedElementWeakPtr _self;
+
};
+ typedef SGSharedPtr<PropertyBasedElement> PropertyBasedElementPtr;
+ typedef SGWeakPtr<PropertyBasedElement> PropertyBasedElementWeakPtr;
+
} // namespace simgear
#endif /* SG_PROPERTY_BASED_ELEMENT_HXX_ */