vistopbotimage.h

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#ifndef vistopbotimage_h
#define vistopbotimage_h

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Ranojay Sen
 Date:          June 2009
 RCS:           $Id$
________________________________________________________________________

-*/


#include "visbasemod.h"
#include "visobject.h"
#include "position.h"

namespace OD{ class RGBImage; }
namespace osgGeo { class LayeredTexture; class TexturePlaneNode; }


namespace visBase
{


mExpClass(visBase) TopBotImage : public VisualObjectImpl
{
public:
    static TopBotImage*         create()
                                mCreateDataObj(TopBotImage);

    void                        setDisplayTransformation(const mVisTrans*);
    const mVisTrans*            getDisplayTransformation() const;
    void                        setPos(const Coord3& tl,const Coord3& br);
    const Coord3&               topLeft() const     { return pos0_; }
    const Coord3&               bottomRight() const { return pos1_; }

    void                        setImageFilename(const char*);
    const char*                 getImageFilename() const;
    void                        setRGBImageFromFile(const char*);

    void                        setTransparency(float); // 0-1
    float                       getTransparency() const; // returns value 0-1

    bool                        getImageInfo(int& w,int& h,int& pixsz) const;
    const unsigned char*        getTextureData() const;
    bool                        getTextureDataInfo(TypeSet<Coord3>& coords,
                                                   TypeSet<Coord>& texcoords,
                                                   TypeSet<int>& ps ) const;

    void                        fillPar(IOPar&) const;
    bool                        usePar(const IOPar&);

protected:
                                ~TopBotImage();

    void                        updateCoords();
    void                        setRGBImage(const OD::RGBImage&);


    const mVisTrans*            trans_;
    Coord3                      pos0_;
    Coord3                      pos1_;
    BufferString                filenm_;

    static const char*          sKeyTopLeftCoord();
    static const char*          sKeyBottomRightCoord();
    static const char*          sKeyFileNameStr();
    static const char*          sKeyTransparencyStr();

    int                                 layerid_;
    osgGeo::LayeredTexture*             laytex_;
    osgGeo::TexturePlaneNode*           texplane_;
};

} // namespace visBase

#endif