flatviewzoommgr.h

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#pragma once
/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Bert
 Date:          Feb 2007
________________________________________________________________________

-*/

#include "uiflatviewmod.h"
#include "geometry.h"
#include "sets.h"

namespace FlatView
{

mExpClass(uiFlatView) ZoomMgr
{
public:

    typedef Geom::Size2D<double>        Size;
    typedef Geom::Point2D<double>       Point;


                        ZoomMgr();
                        ~ZoomMgr();

    void                setNrViewers(int);

    void                init(const Geom::PosRectangle<double>&);
    void                reInit(const Geom::PosRectangle<double>&);

    void                init(const TypeSet<Geom::PosRectangle<double> >&);
    void                reInit(const TypeSet<Geom::PosRectangle<double> >&);

    void                add(Size,int vieweridx=0);
    Size                current(int vieweridx=0) const;
    Size                back(int vieweridx,bool onlyvertical,
                             bool usefwdfac) const;
    Size                forward(int vieweridx,bool onlyvertical,
                                bool usefwdfac) const;
    bool                atStart(int vieweridx=-1) const;
    void                toStart(int vieweridx=-1) const;
    int                 nrZooms(int vieweridx=0) const;
    Size                initialSize(int vieweridx=0) const;
    Point               initialCenter(int vieweridx=0) const;

    double              fwdFac() const          { return fwdfac_; }
    void                setFwdFac(double fac);

protected:

    mutable TypeSet<int>        current_;

    struct ViewerZoomData
    {
                                TypeSet<Size>   zooms_;
                                Point           center_;
    };

    ObjectSet<ViewerZoomData>   viewerdata_;

    double                      fwdfac_;

};

} // namespace FlatView