visannot.h

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#ifndef visannot_h
#define visannot_h

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Kris Tingdahl
 Date:          Jan 2002
 RCS:           $Id$
________________________________________________________________________


-*/

#include "visbasemod.h"
#include "visosg.h"
#include "visobject.h"
#include "color.h"
#include "trckeyzsampling.h"
#include "position.h"
#include "sets.h"

class AxisInfo;
class FontData;
class Color;
class uiString;

namespace osg
{
    class Geode;
    class Array;
    class Group;
    class Geometry;
    class Vec3f;
}

namespace osgGeo
{
    class OneSideRender;
}

namespace visBase
{
class Text2;
class DataObjectGroup;

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

    void                showText(bool yn);
    bool                isTextShown() const;

    void                showScale(bool yn);
    bool                isScaleShown() const;

    bool                canShowGridLines() const;
    void                showGridLines(bool yn);
    bool                isGridLinesShown() const;

    const FontData&     getFont() const;
    void                setFont(const FontData&);

    void                setTrcKeyZSampling(const TrcKeyZSampling&);
    const TrcKeyZSampling& getTrcKeyZSampling() const;
    void                setScale(const TrcKeyZSampling&);
                        /*<! TrcKeyZSampling(false) as input takes default
                             axis scale of survey box instead */
    const TrcKeyZSampling& getScale() const;

    void                setScaleFactor(int dim,int scale);

    void                setText(int dim,const uiString&);
    void                fillPar(IOPar&) const;
    bool                usePar(const IOPar&);

    void                setDisplayTransformation(const mVisTrans*);
    const mVisTrans*    getDisplayTransformation() const 
                        { return displaytrans_; }
    virtual void        setPixelDensity(float);
    const Text2*        getAnnotTexts() const { return axisannot_; }


    void                setScene(Scene*);
    void                allowShading(bool yn) { allowshading_=yn; }
private:
                        ~Annotation();
    void                firstTraversal(CallBacker*);
    void                initGridLines();
    void                updateGridLines();
    void                updateTextPos();
    void                updateTextColor(CallBacker*);
    void                getAxisCoords(int,osg::Vec3f&,osg::Vec3f&) const;
    void                setCorner( int, float, float, float );

    int                         scalefactor_[3];

    TrcKeyZSampling             tkzs_;
    TrcKeyZSampling             tkzsdefaultscale_;
    TrcKeyZSampling             scale_;
    osg::Geometry*              box_;
    osg::Array*                 gridlinecoords_;
    osg::Geode*                 geode_;
    osgGeo::OneSideRender*      gridlines_;
    RefMan<Text2>               axisnames_;
    RefMan<Text2>               axisannot_;
    visBase::Scene*             scene_;

    const mVisTrans*            displaytrans_;

    Color                       annotcolor_;
    bool                        allowshading_;

    static const char*          textprefixstr();
    static const char*          cornerprefixstr();
    static const char*          showtextstr();
    static const char*          showscalestr();
};

} // namespace visBase

#endif