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

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * 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

 *   with this work for additional information regarding copyright

 *   ownership. The ASF licenses this file to you under the Apache

 *   License, Version 2.0 (the "License"); you may not use this file

 *   except in compliance with the License. You may obtain a copy of

 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .

 */

#ifndef INCLUDED_SVX_XPOLY_HXX

#define INCLUDED_SVX_XPOLY_HXX

#include <basegfx/polygon/b2dpolypolygon.hxx>

#include <svx/svxdllapi.h>

#include <o3tl/cow_wrapper.hxx>

#include <tools/poly.hxx>

#include <tools/degree.hxx>

class Point;

namespace tools { class Rectangle; }

namespace tools {

    class Polygon;

}

#define XPOLY_APPEND         0xFFFF

// Class XPolygon has a point-array and a flag-array, which contains information about a particular point

class ImpXPolygon;

class SVXCORE_DLLPUBLIC XPolygon final

{

    o3tl::cow_wrapper< ImpXPolygon > m_pImpXPolygon;

    // auxiliary functions for Bezier conversion

    SAL_DLLPRIVATE void    SubdivideBezier(sal_uInt16 nPos, bool bCalcFirst, double fT);

    SAL_DLLPRIVATE void    GenBezArc(const Point& rCenter, tools::Long nRx, tools::Long nRy,

                      tools::Long nXHdl, tools::Long nYHdl, Degree100 nStart, Degree100 nEnd,

                      sal_uInt16 nQuad, sal_uInt16 nFirst);

    SAL_DLLPRIVATE static bool CheckAngles(Degree100& nStart, Degree100 nEnd, Degree100& nA1, Degree100& nA2);

public:

    SAL_DLLPRIVATE XPolygon( sal_uInt16 nSize=16 );

    SAL_DLLPRIVATE XPolygon( const XPolygon& );

    SAL_DLLPRIVATE XPolygon( XPolygon&& );

    XPolygon( const tools::Polygon& rPoly );

    XPolygon( const tools::Rectangle& rRect, tools::Long nRx = 0, tools::Long nRy = 0 );

    XPolygon( const Point& rCenter, tools::Long nRx, tools::Long nRy,

              Degree100 nStartAngle = 0_deg100, Degree100 nEndAngle = 36000_deg100,

              bool bClose = true );

    ~XPolygon();

    sal_uInt16      GetSize() const;

    SAL_DLLPRIVATE void        SetPointCount( sal_uInt16 nPoints );

    SAL_DLLPRIVATE sal_uInt16      GetPointCount() const;

    void        Insert( sal_uInt16 nPos, const Point& rPt, PolyFlags eFlags );

    SAL_DLLPRIVATE void        Insert( sal_uInt16 nPos, const XPolygon& rXPoly );

    SAL_DLLPRIVATE void        Remove( sal_uInt16 nPos, sal_uInt16 nCount );

    SAL_DLLPRIVATE void        Move( tools::Long nHorzMove, tools::Long nVertMove );

    SAL_DLLPRIVATE tools::Rectangle   GetBoundRect() const;

    const Point&    operator[]( sal_uInt16 nPos ) const;

          Point&    operator[]( sal_uInt16 nPos );

    SAL_DLLPRIVATE XPolygon&       operator=( const XPolygon& );

    SAL_DLLPRIVATE XPolygon&       operator=( XPolygon&& );

    SAL_DLLPRIVATE bool            operator==( const XPolygon& rXPoly ) const;

    SAL_DLLPRIVATE PolyFlags  GetFlags( sal_uInt16 nPos ) const;

    SAL_DLLPRIVATE void        SetFlags( sal_uInt16 nPos, PolyFlags eFlags );

    SAL_DLLPRIVATE bool        IsControl(sal_uInt16 nPos) const;

    SAL_DLLPRIVATE bool        IsSmooth(sal_uInt16 nPos) const;

    // distance between two points

    SAL_DLLPRIVATE double  CalcDistance(sal_uInt16 nP1, sal_uInt16 nP2);

    // Bezier conversion

    SAL_DLLPRIVATE void CalcSmoothJoin(sal_uInt16 nCenter, sal_uInt16 nDrag, sal_uInt16 nPnt);

    SAL_DLLPRIVATE void CalcTangent(sal_uInt16 nCenter, sal_uInt16 nPrev, sal_uInt16 nNext);

    SAL_DLLPRIVATE void PointsToBezier(sal_uInt16 nFirst);

    // transformations

    void Scale(double fSx, double fSy);

    SAL_DLLPRIVATE void Distort(const tools::Rectangle& rRefRect, const XPolygon& rDistortedRect);

    // #116512# convert to basegfx::B2DPolygon and return

    basegfx::B2DPolygon getB2DPolygon() const;

    // #116512# constructor to convert from basegfx::B2DPolygon

    // #i76339# made explicit

    SAL_DLLPRIVATE explicit XPolygon(const basegfx::B2DPolygon& rPolygon);

};

// Class XPolyPolygon; like PolyPolygon, composed of XPolygons instead of Polygons

class ImpXPolyPolygon;

class XPolyPolygon final

{

    o3tl::cow_wrapper< ImpXPolyPolygon > m_pImpXPolyPolygon;

public:

                    XPolyPolygon();

                    XPolyPolygon( const XPolyPolygon& );

                    XPolyPolygon( XPolyPolygon&& );

                    ~XPolyPolygon();

    void            Insert( XPolygon&& rXPoly );

    void            Insert( const XPolyPolygon& rXPoly );

    void            Remove( sal_uInt16 nPos );

    const XPolygon& GetObject( sal_uInt16 nPos ) const;

    void            Clear();

    sal_uInt16          Count() const;

    tools::Rectangle       GetBoundRect() const;

    const XPolygon& operator[]( sal_uInt16 nPos ) const

                        { return GetObject( nPos ); }

    XPolygon&       operator[]( sal_uInt16 nPos );

    XPolyPolygon&   operator=( const XPolyPolygon& );

    XPolyPolygon&   operator=( XPolyPolygon&& );

    // transformations

    void Distort(const tools::Rectangle& rRefRect, const XPolygon& rDistortedRect);

    // #116512# convert to basegfx::B2DPolyPolygon and return

    basegfx::B2DPolyPolygon getB2DPolyPolygon() const;

    // #116512# constructor to convert from basegfx::B2DPolyPolygon

     // #i76339# made explicit

     explicit XPolyPolygon(const basegfx::B2DPolyPolygon& rPolyPolygon);

};

#endif // INCLUDED_SVX_XPOLY_HXX

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