uigraphicsscalebar.h

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#pragma once

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Henrique Mageste
 Date:          May 2015
 RCS:           $Id: $
________________________________________________________________________

-*/

#include "uiiocommon.h"
#include "uigraphicsitem.h"
#include "uiworld2ui.h"

class uiAdvancedTextItem;
class uiRectItem;
class SurveyInfo;

mExpClass(uiIo) uiScaleBarItem : public uiGraphicsItem
{
public:
                        uiScaleBarItem(int pxwidth=100,int pxheight=6);
                        ~uiScaleBarItem();

    inline int          getPxHeight() const     { return pxheight_; }
    inline float        getLength() const       { return worldwidth_; }
    inline int          getPxWidth() const      { return pxwidth_; }
    inline void         setPxHeight(int pxh)    { pxheight_ = pxh; }
    inline void         setLength(float len)    { worldwidth_ = len; }
    inline void         setPxWidth(int pxw)     { pxwidth_ = pxw;
                                                  preferablepxwidth_ = pxw; }

    void                setWorld2Ui(const uiWorld2Ui&);

    void                update();

protected:
    float               worldwidth_;
    int                 pxwidth_;
    int                 pxheight_;

    uiRectItem*         upperright_;
    uiRectItem*         uppermid_;
    uiRectItem*         upperleft_;
    uiRectItem*         lowerright_;
    uiRectItem*         lowermid_;
    uiRectItem*         lowerleft_;
    uiAdvancedTextItem* startnr_;
    uiAdvancedTextItem* midnr_;
    uiAdvancedTextItem* stopnr_;

private:
    void                initDefaultScale();
    void                adjustValues();
    void                setPolygons(int,int);
    uiWorld2Ui          w2ui_;
    int                 preferablepxwidth_;

};