AOO410/main/vcl/inc/vcl/lineinfo.hxx

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 * Licensed to the Apache Software Foundation (ASF) under one
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 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
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#ifndef _SV_LINEINFO_HXX
#define _SV_LINEINFO_HXX

#include <vcl/dllapi.h>
#include <tools/gen.hxx>
#include <vcl/vclenum.hxx>
#include <basegfx/vector/b2enums.hxx>
#include <com/sun/star/drawing/LineCap.hpp>

// ----------------
// - ImplLineInfo -
// ----------------

class SvStream;
namespace basegfx { class B2DPolyPolygon; }

struct ImplLineInfo
{
    sal_uLong				    mnRefCount;
	LineStyle			    meStyle;
    long				    mnWidth;
	sal_uInt16				    mnDashCount;
	long				    mnDashLen;
	sal_uInt16				    mnDotCount;
	long				    mnDotLen;
	long				    mnDistance;
    
    basegfx::B2DLineJoin    meLineJoin;
    com::sun::star::drawing::LineCap meLineCap;

						ImplLineInfo();
						ImplLineInfo( const ImplLineInfo& rImplLineInfo );

    bool operator==( const ImplLineInfo& ) const;

    friend SvStream&	operator>>( SvStream& rIStm, ImplLineInfo& rImplLineInfo );
    friend SvStream&	operator<<( SvStream& rOStm, const ImplLineInfo& rImplLineInfo );
};

// ------------
// - LineInfo -
// ------------

class VCL_DLLPUBLIC LineInfo
{
private:	

	ImplLineInfo*	mpImplLineInfo;
	long			n1;
	long			n2;
	long			n3;

	SAL_DLLPRIVATE void ImplMakeUnique();

public:

					LineInfo( LineStyle eLineStyle = LINE_SOLID, long nWidth = 0L );
                    LineInfo( const LineInfo& rLineInfo );
                    ~LineInfo();

	LineInfo&		operator=( const LineInfo& rLineInfo );
    sal_Bool            operator==( const LineInfo& rLineInfo ) const;
    sal_Bool            operator!=( const LineInfo& rLineInfo ) const { return !(LineInfo::operator==( rLineInfo ) ); }
    sal_Bool            IsSameInstance( const LineInfo& rLineInfo ) const { return( mpImplLineInfo == rLineInfo.mpImplLineInfo ); }

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

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

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

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

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

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

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

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

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

    sal_Bool			IsDefault() const;

    friend VCL_DLLPUBLIC SvStream& operator>>( SvStream& rIStm, LineInfo& rLineInfo );
    friend VCL_DLLPUBLIC SvStream& operator<<( SvStream& rOStm, const LineInfo& rLineInfo );

	// helper to check if line width or DashDot is used
	bool isDashDotOrFatLineUsed() const;

	// 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 DasDot is defined, the resut 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;
};

#endif  // _SV_LINEINFO_HXX