lineinfo.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#ifndef INCLUDED_VCL_LINEINFO_HXX
#define INCLUDED_VCL_LINEINFO_HXX

#include <sal/types.h>
#include <vcl/dllapi.h>
#include <vcl/vclenum.hxx>
#include <basegfx/vector/b2enums.hxx>
#include <com/sun/star/drawing/LineCap.hpp>
#include <o3tl/cow_wrapper.hxx>

#include <vector>

class SvStream;
namespace basegfx { class B2DPolyPolygon; }

struct ImplLineInfo
{
    double                  mnWidth;
    double                  mnDashLen;
    double                  mnDotLen;
    double                  mnDistance;

    basegfx::B2DLineJoin    meLineJoin;
    css::drawing::LineCap   meLineCap;
    LineStyle               meStyle;

    sal_uInt16              mnDashCount;
    sal_uInt16              mnDotCount;

    ImplLineInfo();

    bool operator==( const ImplLineInfo& ) const;
};


class VCL_DLLPUBLIC LineInfo
{
public:
                    LineInfo( LineStyle eLineStyle = LineStyle::Solid, double nWidth = 0 );
                    LineInfo( const LineInfo& rLineInfo );
                    LineInfo( LineInfo&& rLineInfo );
                    ~LineInfo();

    LineInfo&       operator=( const LineInfo& rLineInfo );
    LineInfo&       operator=( LineInfo&& rLineInfo );
    bool            operator==( const LineInfo& rLineInfo ) const;
    bool            operator!=( const LineInfo& rLineInfo ) const { return !(LineInfo::operator==( rLineInfo ) ); }

    void            SetStyle( LineStyle eStyle );
    LineStyle       GetStyle() const { return mpImplLineInfo->meStyle; }

    void            SetWidth( double nWidth );
    double          GetWidth() const { return mpImplLineInfo->mnWidth; }

    void            SetDashCount( sal_uInt16 nDashCount );
    sal_uInt16      GetDashCount() const { return mpImplLineInfo->mnDashCount; }

    void            SetDashLen( double nDashLen );
    double          GetDashLen() const { return mpImplLineInfo->mnDashLen; }

    void            SetDotCount( sal_uInt16 nDotCount );
    sal_uInt16      GetDotCount() const { return mpImplLineInfo->mnDotCount; }

    void            SetDotLen( double nDotLen );
    double          GetDotLen() const { return mpImplLineInfo->mnDotLen; }

    void            SetDistance( double nDistance );
    double          GetDistance() const { return mpImplLineInfo->mnDistance; }

    std::vector< double > GetDotDashArray() const;

    void SetLineJoin(basegfx::B2DLineJoin eLineJoin);
    basegfx::B2DLineJoin GetLineJoin() const { return mpImplLineInfo->meLineJoin; }

    void SetLineCap(css::drawing::LineCap eLineCap);
    css::drawing::LineCap GetLineCap() const { return mpImplLineInfo->meLineCap; }

    bool            IsDefault() const;

    friend SvStream& ReadLineInfo( SvStream& rIStm, LineInfo& rLineInfo );
    friend SvStream& WriteLineInfo( SvStream& rOStm, const LineInfo& rLineInfo );

    // helper to get decomposed polygon data with the LineInfo applied. The source
    // hairline polygon is given in io_rLinePolyPolygon. Both given polygons may
    // contain results; e.g. when no fat line but DashDot is defined, the result will
    // be in io_rLinePolyPolygon while o_rFillPolyPolygon will be empty. When fat line
    // is defined, it will be vice-versa. If none is defined, io_rLinePolyPolygon will
    // not be changed (but o_rFillPolyPolygon will be freed)
    void applyToB2DPolyPolygon(
        basegfx::B2DPolyPolygon& io_rLinePolyPolygon,
        basegfx::B2DPolyPolygon& o_rFillPolyPolygon) const;

private:
    o3tl::cow_wrapper< ImplLineInfo >          mpImplLineInfo;
};

#endif // INCLUDED_VCL_LINEINFO_HXX

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