FvGdiArc.h

[詳解]

//  $Revision: 1.1 $
/*
    @file   FvGdiArc.h
    @brief  Grafics device interface figure class (ellipse)
    @author FAST Corporation
*/

#ifndef _FVGDISRC_H_INCLUDED_
#define _FVGDISRC_H_INCLUDED_

#include "FvGdiFigure.h"

#pragma pack(push,_FVCL_PACKING)

namespace FVCL
{
namespace GDI
{
// front declaration
class FVCL_API CFvGdiImage;

// class
class FVCL_API CFvGdiArc : public CFvGdiFigure
{
private:
    void _Constructor();

public:
    CFvGdiArc();
    CFvGdiArc( const CFvGdiArc& src );
    CFvGdiArc( const FVCL::Data::CFvEllipse& src );
    CFvGdiArc( DOUBLE center_x, DOUBLE center_y, DOUBLE axis_x, DOUBLE axis_y );
    CFvGdiArc( DOUBLE center_x, DOUBLE center_y, DOUBLE axis_x, DOUBLE axis_y, DOUBLE st_angle, DOUBLE ed_angle );
    virtual ~CFvGdiArc();

    enum { DataID = 23 };

    virtual INT GetDataID() const;
    virtual INT Play( HDC dc, DOUBLE magnification ) const;
    virtual bool GetDataObject( CFvDataObject* object ) const;
    virtual CFvGdiFigure* Clone() const;
    virtual FVCL::Data::CFvRectangle GetClipRect() const;
    virtual INT CheckFocusMarkPosition( const FVCL::Data::CFvPoint& mouse, DOUBLE margin = 2.0 ) const;

    virtual bool SetPosition( const FVCL::Data::CFvPoint& position );
    virtual const FVCL::Data::CFvPoint& GetPosition() const;

    bool SetArcStAngle( const FVCL::Data::CFvAngle& angle );
    const FVCL::Data::CFvAngle& GetArcStAngle() const;
    FVCL::Data::CFvAngle& GetArcStAngle();
    FVCL::Data::CFvPoint GetArcStPoint() const;

    bool SetArcEdAngle( const FVCL::Data::CFvAngle& angle );
    const FVCL::Data::CFvAngle& GetArcEdAngle() const;
    FVCL::Data::CFvAngle& GetArcEdAngle();
    FVCL::Data::CFvPoint GetArcEdPoint() const;

    FVCL::Data::CFvAngle CalcArcAngle( FVCL::Data::CFvPoint point, bool invert );

    virtual CFvGdiArc& operator = ( const FVCL::Data::CFvEllipse& src );
    virtual CFvGdiArc& operator = ( const CFvGdiArc& src );
    virtual bool operator == ( const CFvGdiFigure& src ) const;
    virtual bool operator != ( const CFvGdiFigure& src ) const;

    FVCL::Data::CFvEllipse ToCFvEllipse() const;

protected:

public:
    FVCL::Data::CFvPoint                center;
    DOUBLE                  axis_x;
    DOUBLE                  axis_y;

protected:

private:
    FVCL::Data::CFvAngle    m_ArcStAngle;
    FVCL::Data::CFvAngle    m_ArcEdAngle;
    FVCL::Data::CFvPoint CalcArcStPoint(DOUBLE mag) const;
    FVCL::Data::CFvPoint CalcArcEdPoint(DOUBLE mag) const;
};

}   // GDI
}   // FVCL

#pragma pack(pop)

#endif  // _FVGDISRC_H_INCLUDED_