uibitmapdisplay.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 "uigeom.h"
#include "callback.h"
#include "datapack.h"

class uiBitMapDisplayTask;
class uiDynamicImageItem;
class uiGraphicsItem;
class DataPackMgr;
class FlatDataPack;
class Task;

namespace FlatView { class Appearance; }


mExpClass(uiFlatView) uiBitMapDisplay : public CallBacker
{
public:
                        uiBitMapDisplay(FlatView::Appearance&,
                                        bool withalpha=true);
                        ~uiBitMapDisplay();

    void                update();
                        //When inputs or settings have changed

    uiGraphicsItem*     getDisplay();
    void                removeDisplay();

    void                setOverlap(float v) { overlap_ = v; }
    float               getOverlap() const  { return overlap_; }

    const uiWorldRect&  boundingBox() const;
    void                setBoundingBox(const uiWorldRect&);
    void                setDataPack(const FlatDataPack*,bool wva);
    Notifier<uiBitMapDisplay> rangeUpdated;

private:

    void                        reGenerateCB(CallBacker*);
    void                        dynamicTaskFinishCB(CallBacker*);

    Task*                       createDynamicTask(bool issnapshot);

    bool                        isVisible(bool wva) const;
    StepInterval<double>        getDataPackRange(bool wva,bool x1) const;
    uiWorldRect                 getBoundingBox(bool wva) const;

    FlatView::Appearance&       appearance_;
    ConstRefMan<FlatDataPack>   wvapack_;
    ConstRefMan<FlatDataPack>   vdpack_;
    uiWorldRect                 boundingbox_;
    float                       overlap_;
    int                         workqueueid_;
    bool                        withalpha_;

    uiDynamicImageItem*         display_;
    uiBitMapDisplayTask*        basetask_;

    CallBack                    finishedcb_;
};