TransformManipulator.h

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/*  Copyright (C) 2003-2021 Free Electron Organization
    Any use of this software requires a license.  If a valid license
    was not distributed with this file, visit freeelectron.org. */

/** @file */

#ifndef __operator_TransformManipulator_h__
#define __operator_TransformManipulator_h__

namespace fe
{
namespace ext
{

/**************************************************************************//**
    @brief Manipulator to adjust a SpatialTransform

    @ingroup operator
*//***************************************************************************/
class FE_DL_EXPORT TransformManipulator:
    public ManipulatorCommon,
    public Initialize<TransformManipulator>
{
    public:

                    TransformManipulator(void):
                        m_mode(e_deform)                                    {}
virtual             ~TransformManipulator(void)                             {}

        void        initialize(void);

                    //* As HandlerI (window events)
virtual void        handle(Record& a_rSignal);

virtual String      mode(void) const
                    {   return m_mode==e_deform? "deform": "pivot"; }

    protected:
                    //* As ManipulatorCommon
virtual void        updateGrips(void);

    private:

        void        updateTransform(void);

        enum        Mode
                    {
                        e_deform,
                        e_pivot
                    };

        Mode                m_mode;
        sp<DrawMode>        m_spCircleAura;

        SpatialTransform    m_unscaled;
        SpatialVector       m_scaling;
};

} /* namespace ext */
} /* namespace fe */

#endif /* __operator_TransformManipulator_h__ */