vistexturepanelstrip.h

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#ifndef vistexturepanelstrip_h
#define vistexturepanelstrip_h

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Jaap Glas
 Date:          April 2013
 RCS:           $Id$
________________________________________________________________________


-*/


#include "visbasemod.h"
#include "visobject.h"
#include "vistransform.h"


namespace osgGeo { class TexturePanelStripNode; }

namespace visBase
{

class TextureChannels;

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

    void                        setTextureChannels(visBase::TextureChannels*);
    visBase::TextureChannels*   getTextureChannels();

    void                        freezeDisplay(bool yn=true);
    bool                        isDisplayFrozen() const;
    void                        setPath(const TypeSet<Coord>&);
    const TypeSet<Coord>&       getPath() const;

    void                        setPath2TextureMapping(
                                                const TypeSet<float>& offsets);
    const TypeSet<float>&       getPath2TextureMapping() const;

    void                        setPathTextureShift(float shift,int startidx=0);
    float                       getPathTextureShift() const;
    float                       getPathTextureShiftStartIdx() const;

    void                        setZRange(const Interval<float>&);
    Interval<float>             getZRange() const;

    void                        unsetZRange2TextureMapping();
    void                        setZRange2TextureMapping(
                                                const Interval<float>& offsets);
    bool                        isZRange2TextureMappingSet() const;
    Interval<float>             getZRange2TextureMapping() const;

    void                        setZTextureShift(float);
    float                       getZTextureShift() const;

    void                        swapTextureAxes(bool yn=true);
    bool                        areTextureAxesSwapped() const;

    void                        smoothNormals(bool yn=true);
    bool                        areNormalsSmoothed() const;
    
    void                        setDisplayTransformation(const mVisTrans*);
    const mVisTrans*            getDisplayTransformation() const;
    int                         getNrTextures() const;
    const unsigned char*        getTextureData() const;
    mStruct(visBase) TextureDataInfo
    {
        TypeSet<Coord3> coords_;
        TypeSet<Coord>  texcoords_;
        TypeSet<int>    ps_;    
        void            setEmpty() { coords_.erase(); texcoords_.erase();
                                     ps_.erase(); }
    };

    bool                        getTextureDataInfo(int tidx,
                                    TextureDataInfo& texinfo) const;
    bool                        getTextureInfo(int& width,int& height,
                                    int& pixsize);
protected:
                                        ~TexturePanelStrip();
    void                                updatePath();
    
    RefMan<const mVisTrans>             displaytrans_;
    osgGeo::TexturePanelStripNode*      osgpanelstrip_;
    RefMan<TextureChannels>             channels_;
    PtrMan<TypeSet<Coord> >             pathcoords_;
    PtrMan<TypeSet<float> >             pathtexoffsets_;

private:
    bool                        calcTextureCoordinates(int,
                                                       TypeSet<Coord>&)const;

    bool                        calcTextureCoordinates(TypeSet<Coord3>& coordin,
                                        TypeSet<Coord>& coordout) const;
    Coord                       getImageTextureCoord(const Coord3 dispcrd,
                                        double minx,double xlen,double minz,
                                        double zlen) const;
    void                        getMinAndLengthInfo(double& minval,double& len,
                                                    bool bz=false) const;
};

};

#endif