MouseEventHandler.hpp

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#ifndef DART_GUI_OSG_MOUSEEVENTHANDLER_HPP_
#define DART_GUI_OSG_MOUSEEVENTHANDLER_HPP_

#include "dart/common/ClassWithVirtualBase.hpp"
#include "dart/common/Observer.hpp"
#include "dart/common/Subject.hpp"

#include "dart/gui/osg/DefaultEventHandler.hpp"

namespace dart {
namespace gui {
namespace osg {

class DefaultEventHandler;

DART_DECLARE_CLASS_WITH_VIRTUAL_BASE_BEGIN
class MouseEventHandler : public virtual dart::common::Subject,
                          public virtual dart::common::Observer
{
public:
  friend class DefaultEventHandler;

  inline MouseEventHandler() : mEventHandler(nullptr)
  {
  }

  virtual void update() = 0;

protected:
  void handleDestructionNotification(const Subject* _subject) override
  {
    if (mEventHandler == _subject)
      delete this;
  }

  DefaultEventHandler* mEventHandler;
};
DART_DECLARE_CLASS_WITH_VIRTUAL_BASE_END

} // namespace osg
} // namespace gui
} // namespace dart

#endif // DART_GUI_OSG_MOUSEEVENTHANDLER_HPP_