bitmapmgr.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 "generalmod.h"

#include "array2dbitmap.h"
#include "datapack.h"
#include "geometry.h"

namespace FlatView { class Appearance; }
class FlatDataPack;

mExpClass(General) BitMapMgr
{
public:
                        BitMapMgr();
                        ~BitMapMgr();

    void                init(const FlatDataPack*,const FlatView::Appearance&,
                             bool wva);
    void                clearAll();

    Geom::Point2D<int>  dataOffs(const Geom::PosRectangle<double>&,
                                 const Geom::Size2D<int>&) const;

    bool                generate(const Geom::PosRectangle<double>& wr,
                                 const Geom::Size2D<int>& bufwrsz,
                                 const Geom::Size2D<int>& availpixels);
    const A2DBitMap*    bitMap() const                  { return bmp_; }
    const A2DBitMapGenerator*   bitMapGen() const       { return gen_; }
    A2DBitMapGenerator*         bitMapGen() { return gen_; }

private:

    void                                setup();

    mutable Threads::Lock               lock_;
    ConstRefMan<FlatDataPack>           datapack_;
    FlatView::Appearance&               appearance_;
    A2DBitMap*                          bmp_;
    A2DBitMapPosSetup*                  pos_;
    A2DBitMapInpData*                   data_;
    A2DBitMapGenerator*                 gen_;
    bool                                wva_;

    Geom::Size2D<int>                   sz_;
    Geom::PosRectangle<double>          wr_;
};


mExpClass(General) BitMapGenTask : public Task
{
public:
                BitMapGenTask(BitMapMgr& mgr,
                        const Geom::PosRectangle<double>& wr,
                        const Geom::Size2D<int>& bufwrsz,
                        const Geom::Size2D<int>& pix )
                    : mgr_(mgr), wr_(wr), bufwrsz_(bufwrsz), availpixels_(pix){}

    bool        execute() { return mgr_.generate(wr_,bufwrsz_,availpixels_); }

protected:

    BitMapMgr&                          mgr_;
    const Geom::PosRectangle<double>&   wr_;
    const Geom::Size2D<int>&            bufwrsz_;
    const Geom::Size2D<int>&            availpixels_;
};