vishortileresolutiondata.h

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#pragma once

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Kristofer Tingdahl
 Date:          March 2009
________________________________________________________________________


-*/

// this header file only be used in the classes related to Horzonsection .
// don't include it in somewhere else !!!


#include "vistransform.h"
#include "vishorizonsectiontile.h"
#include "typeset.h"
#include "zaxistransform.h"

#include "thread.h"

namespace osg
{
    class Geometry;
    class Geode;
    class UserDataContainer;
    class Array;
    class StateSet;
    class DrawElementsUShort;
}

namespace osgUtil { class CullVisitor; }

namespace osgGeo { class LayeredTexture;  }

namespace visBase
{
    class HorizonSectionTile;
    class TextureChannels;
    class Coordinates;

class TileResolutionData
{
public:
    TileResolutionData( const HorizonSectionTile* sectile,
                        char resolution );
    ~TileResolutionData();

    void                setTexture(const unsigned int unit, osg::Array* arr,
                                    osg::StateSet* stateset);
    void                enableGeometryTypeDisplay(GeometryType type, bool yn);

    bool                tesselateResolution(bool onlyifabsness);
    void                updatePrimitiveSets();
    void                setWireframeColor(Color& color);
    void                dirtyGeometry();
    const osg::PrimitiveSet*       getPrimitiveSet(GeometryType) const;

protected:

    friend class HorizonSectionTile;
    friend class HorizonSectionTileGlue;

    const HorizonSectionTile*   sectile_;
    osg::Switch*                osgswitch_;
    osg::UserDataContainer*     geodes_;

    osg::Array*                 osgvertices_;
    const osg::Array*           normals_;
    osg::Array*                 linecolor_;

    osg::DrawElementsUShort*    trianglesps_;
    osg::DrawElementsUShort*    linesps_;
    osg::DrawElementsUShort*    pointsps_;
    osg::DrawElementsUShort*    wireframesps_;

    osg::DrawElementsUShort*    trianglesosgps_;
    osg::DrawElementsUShort*    linesosgps_;
    osg::DrawElementsUShort*    pointsosgps_;
    osg::DrawElementsUShort*    wireframesosgps_;

    Threads::Mutex              tesselatemutex_;

    bool                        updateprimitiveset_;
    char                        needsretesselation_;
    char                        resolution_;
    int                         nrverticesperside_;
    bool                        needsetposition_;
    int                         dispgeometrytype_;

private:

    void                        buildOsgGeometres();
    void                        setPrimitiveSet(unsigned int,
                                                osg::DrawElementsUShort*);

    void                        tesselateCell(int row, int col);
    void                        refOsgPrimitiveSets();
    void                        unRefOsgPrimitiveSets();
    void                        createPrimitiveSets();
    void                        buildLineGeometry(int idx, int width);
    void                        buildTraingleGeometry(int idx);
    void                        buildPointGeometry(int idx);
    void                        hideFromDisplay();
    bool                        detectIsolatedLine(int crdidx,char direction);
    void                        setGeometryTexture(const unsigned int unit,
                                                   const osg::Array* arr,
                                                   osg::StateSet*stateset,
                                                   int geometrytype);
    void                        dirtyGeometry(int type);
};

}