QtLasso.hh

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//=============================================================================
//
//  CLASS QtLasso
//
//=============================================================================
 
 
#ifndef ACG_QTLASSO_HH
#define ACG_QTLASSO_HH
 
 
//== INCLUDES =================================================================
 
// ACG
#include "../GL/GLState.hh"
#include "../Math/VectorT.hh"
 
// Qt
//#include <QGl>
//#include <QNameSpace>
#include <QMouseEvent>
 
 
//== FORWARDDECLARATIONS ======================================================
 
 
//== NAMESPACES ===============================================================
 
namespace ACG {
 
 
//== CLASS DEFINITION =========================================================
 
 
class ACGDLLEXPORT QtLasso : public QObject
{
  Q_OBJECT
 
public:
 
  explicit QtLasso(GLState& _glstate);
  ~QtLasso();
 
  void reset() { is_active_ = false; free_mask(); }
  bool is_active() const { return is_active_; }
 
  bool is_vertex_selected(const Vec3d& _v);
 
  enum SelectionMode {
    NewSelection,
    AddToSelection,
    DelFromSelection
  };
 
 
public slots:
 
  void slotMouseEvent(QMouseEvent* _event);
 
 
signals:
 
  void signalLassoSelection(ACG::QtLasso::SelectionMode);
 
 
private:
 
  // hide copy & assignement
  QtLasso(const QtLasso& _rhs);
  QtLasso& operator=(const QtLasso& _rhs);
 
  void create_mask();
  void free_mask();
 
 
  GLState&                glstate_;
  Vec2i                   first_point_, last_point_, rubberband_point_;
  unsigned char          *mask_;
  unsigned int            mask_width_, mask_height_;
  bool                    is_active_;
};
 
 
//=============================================================================
} // namespace ACG
//=============================================================================
#endif // ACG_QTLASSO_HH defined
//=============================================================================