BoxSelectionInteractor.h

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/* This file is part of COVISE.
 
   You can use it under the terms of the GNU Lesser General Public License
   version 2.1 or later, see lgpl-2.1.txt.
 
 * License: LGPL 2+ */
 
#ifndef _BOX_SELECTION_INTERACTOR_H
#define _BOX_SELECTION_INTERACTOR_H
 
#include <util/coExport.h>
#include <osg/MatrixTransform>
#include <osg/Geode>
#include <osg/StateSet>
 
#include "BoxSelection.h"
 
#include <OpenVRUI/coTrackerButtonInteraction.h>
 
namespace opencover
{
 
class PLUGIN_UTILEXPORT BoxSelectionInteractor : public vrui::coTrackerButtonInteraction
{
public:
    // create the scene graph for a movable, scalable wireframe cube
    BoxSelectionInteractor(vrui::coInteraction::InteractionType type, const char *name, vrui::coInteraction::InteractionPriority priority);
 
    // destroy the cube scene graph
    ~BoxSelectionInteractor();
 
    // start the interaction
    void startInteraction();
 
    // ongoing interaction
    void doInteraction();
    void registerInteractionRunningCallback(void (*interactionRunning)());
    void unregisterInteractionRunningCallback();
 
    // stop the interaction
    void stopInteraction();
    void registerInteractionFinishedCallback(void (*interactionFinished)());
    void unregisterInteractionFinishedCallback();
 
    void getBox(float &minX, float &minY, float &minZ, float &maxX, float &maxY, float &maxZ);
 
private:
    osg::Vec3 m_min, m_max;
    osg::Vec3 m_worldCoordMin, m_worldCoordMax;
    osg::Geode *m_cubeGeode;
    osg::ref_ptr<osg::Group> m_root;
    bool m_animationWasRunning;
    void (*m_interactionFinished)();
    void (*m_interactionRunning)();
 
    osg::Geometry *createWireframeBox(osg::Vec3 min, osg::Vec3 max);
    osg::StateSet *createBoxMaterial();
 
    void updateBox(osg::Vec3 min, osg::Vec3 max);
};
}
#endif