/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

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 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   Licensed to the Apache Software Foundation (ASF) under one or more

 *   contributor license agreements. See the NOTICE file distributed

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#ifndef INCLUDED_VCL_MAPMOD_HXX

#define INCLUDED_VCL_MAPMOD_HXX

#include <vcl/dllapi.h>

#include <tools/mapunit.hxx>

#include <o3tl/cow_wrapper.hxx>

#include <ostream>

class Point;

class Fraction;

class SAL_WARN_UNUSED VCL_DLLPUBLIC MapMode

{

    friend class        OutputDevice;

public:

    struct SAL_DLLPRIVATE ImplMapMode;

    MapMode();

    MapMode( const MapMode& rMapMode );

    explicit MapMode( MapUnit eUnit );

    MapMode( MapUnit eUnit, const Point& rLogicOrg,

        const Fraction& rScaleX, const Fraction& rScaleY );

    ~MapMode();

    void            SetMapUnit( MapUnit eUnit );

    MapUnit         GetMapUnit() const;

    void            SetOrigin( const Point& rOrigin );

    const Point&    GetOrigin() const;

    void            SetScaleX( const Fraction& rScaleX );

    const Fraction& GetScaleX() const;

    void            SetScaleY( const Fraction& rScaleY );

    const Fraction& GetScaleY() const;

    MapMode&        operator=( const MapMode& rMapMode );

    MapMode&        operator=( MapMode&& rMapMode );

    bool            operator==( const MapMode& rMapMode ) const;

    bool            operator!=( const MapMode& rMapMode ) const

    {

        return !(MapMode::operator==( rMapMode ));

    }

    bool            IsDefault() const;

    // Compute value usable as hash.

    size_t          GetHashValue() const;

    // tdf#117984 needs to be thread-safe due to being used e.g. in Bitmaps

    // vcl::ScopedBitmapAccess in parallelized 3D renderer

    typedef o3tl::cow_wrapper< ImplMapMode, o3tl::ThreadSafeRefCountingPolicy > ImplType;

    // If only the map unit is set.

    bool IsSimple() const;

private:

    ImplType        mpImplMapMode;

};

template<typename charT, typename traits>

inline std::basic_ostream<charT, traits> & operator <<(

    std::basic_ostream<charT, traits> & rStream, const MapMode& rMode)

{

    rStream << "MapMode(" << static_cast<unsigned>(rMode.GetMapUnit()) << ",(" << rMode.GetScaleX() << "," << rMode.GetScaleY() << ")@(" << rMode.GetOrigin() << "))";

    return rStream;

}

bool TooLargeScaleForMapMode(const Fraction& rScale, int nDPI);

#endif // INCLUDED_VCL_MAPMOD_HXX

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