VRS - The Virtual Rendering System

version 3.3

axonometriclookatmanipulator.h

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 /**********************************************************************
 VRS - The Virtual Rendering System
 Copyright (C) 2001 Computer Graphics Systems Group at the 
 Hasso-Plattner-Institute, Potsdam, Germany.
 This library is free software; you can redistribute it and/or 
 modify it under the terms of the GNU Lesser General Public 
 License as published by the Free Software Foundation; either 
 version 2.1 of the License, or (at your option) any later version.
 This library is distributed in the hope that it will be useful, but 
 WITHOUT ANY WARRANTY; without even the implied warranty of 
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
 See the GNU Lesser General Public License for more details.
 You should have received a copy of the GNU Lesser+ General Public
 License along with this library; if not, write to the FreeSoftware 
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA, 02111-1307, USA.
 **********************************************************************/
#ifndef VRS_AXONOMETRICLOOKATMANIPULATOR_H
#define VRS_AXONOMETRICLOOKATMANIPULATOR_H

//
// VRS
//
#include <vrs/axonometriclookat.h>
#include <vrs/container/array.h>
#include <vrs/sg/manipulator.h>
#include <vrs/rayrequest.h>


namespace VRS
{
    class VRS_CORE_API AxonometricLookAtManipulator : public Manipulator
    {
    public:

        enum Mode
        {
            Zoom            = 0,
            ScrollMouse     = 1,
            Rotate          = 2
        };
        VRS_SERIALIZABLE_CLASS_ENUM(Mode);

    public:

        AxonometricLookAtManipulator(
            const VRS::SO<AxonometricLookAt>& axonometricLookAt,
            Mode mode,
            InputEvent::Button button,
            InputEvent::Modifier mustModifier = InputEvent::NoModifier,
            InputEvent::Modifier mustNotModifier = InputEvent::NoModifier
            );
            
        void setAxonometricLookAt(const VRS::SO<AxonometricLookAt>& axonometricLookAt);
        inline const VRS::SO<AxonometricLookAt>& getAxonometrixLookAt(void) const
        {
            return this->axonometricLookAt_;
        }
        
        void setMode(AxonometricLookAtManipulator::Mode manipmode);
        inline AxonometricLookAtManipulator::Mode getMode() const
        {
            return this->mode_;
        }

        void setSensitivity(int mode, double sensitivity);
        inline double getSensitivity(int mode) const
        {
            return this->sensitivity_->getElement(mode);
        }
        
        virtual BehaviorNode::InvalidationHint dragStart(int x, int y, ButtonEvent*);
        virtual BehaviorNode::InvalidationHint dragMotion(int x, int y, MotionEvent*);
        virtual BehaviorNode::InvalidationHint dragEnd(int x, int y, ButtonEvent*);
        
        VRS_TYPEINFO(AxonometricLookAtManipulator, Manipulator);
        VRS_SERIALIZABLE(AxonometricLookAtManipulator);

    protected:

            AxonometricLookAtManipulator(void);
            
    private:

        bool performRayRequest(int x, int y, SO<Canvas> canvas, SO<RayRequest> request);

        bool performRayRequest(int x, int y, SO<Canvas> canv, Vector& hitPoint);

    private:

        VRS::SO<AxonometricLookAt>          axonometricLookAt_;
        SO<Array<double> >                   sensitivity_;
        AxonometricLookAtManipulator::Mode  mode_;
        Vector                              hitPoint_;
        SO<RayRequest>                      request_;
        int                                 currentX_;
        int                                 currentY_;
       
    };//endclass AxonometricLookAtManipulator

};//endnamespace VRS

#endif // VRS_AXONOMETRICLOOKATMANIPULATOR_H

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