AOO410/main/svx/inc/svx/polypolygoneditor.hxx

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#ifndef _SDR_POLYPOLYGONEDITOR_HXX_
#define _SDR_POLYPOLYGONEDITOR_HXX_

#include "svx/svxdllapi.h"

#include "svx/ipolypolygoneditorcontroller.hxx"

#include <basegfx/polygon/b2dpolypolygon.hxx>
#include <set>

class SdrUShortCont;

namespace sdr
{

/** this class implements some helper functions to edit a B2DPolyPolygon */
class SVX_DLLPUBLIC PolyPolygonEditor
{
public:
	PolyPolygonEditor( const basegfx::B2DPolyPolygon& rPolyPolygon, bool bClosed );

	const basegfx::B2DPolyPolygon& GetPolyPolygon() const { return maPolyPolygon; }

	/** returns true if the B2DPolyPolygon was changed.
		Warning: B2DPolyPolygon can be empty after this operation!
	*/
	bool DeletePoints( const std::set< sal_uInt16 >& rAbsPoints );
	
	/** returns true if the B2DPolyPolygon was changed.
	*/
	bool SetSegmentsKind(SdrPathSegmentKind eKind, const std::set< sal_uInt16 >& rAbsPoints);

	/** returns true if the B2DPolyPolygon was changed.
	*/
	bool SetPointsSmooth( basegfx::B2VectorContinuity eFlags, const std::set< sal_uInt16 >& rAbsPoints);

	/** Outputs the realative position ( polygon number and point number in that polygon ) from the absolut point number.
		False is returned if the given absolute point is greater not inside this B2DPolyPolygon
	*/
	static bool GetRelativePolyPoint( const basegfx::B2DPolyPolygon& rPoly, sal_uInt32 nAbsPnt, sal_uInt32& rPolyNum, sal_uInt32& rPointNum );

private:
	basegfx::B2DPolyPolygon maPolyPolygon;
	bool mbIsClosed;
};

}

#endif