#include <xpoly.hxx>

Collaboration diagram for XPolygon:

Public Member Functions
	XPolygon (sal_uInt16 nSize=16)

	XPolygon (const XPolygon &)

	XPolygon (XPolygon &&)

	XPolygon (const tools::Polygon &rPoly)
	create a XPolygon out of a standard polygon More...

	XPolygon (const tools::Rectangle &rRect, tools::Long nRx=0, tools::Long nRy=0)
	create a rectangle (also with rounded corners) as a Bézier polygon More...

	XPolygon (const Point &rCenter, tools::Long nRx, tools::Long nRy, Degree100 nStartAngle=0_deg100, Degree100 nEndAngle=36000_deg100, bool bClose=true)
	create an ellipse (curve) as Bézier polygon More...

	~XPolygon ()

sal_uInt16	GetSize () const

void	SetPointCount (sal_uInt16 nPoints)

sal_uInt16	GetPointCount () const

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

void	Insert (sal_uInt16 nPos, const XPolygon &rXPoly)

void	Remove (sal_uInt16 nPos, sal_uInt16 nCount)

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

tools::Rectangle	GetBoundRect () const

const Point &	operator[] (sal_uInt16 nPos) const

Point &	operator[] (sal_uInt16 nPos)

XPolygon &	operator= (const XPolygon &)

XPolygon &	operator= (XPolygon &&)

bool	operator== (const XPolygon &rXPoly) const

PolyFlags	GetFlags (sal_uInt16 nPos) const
	get the flags for the point at the given position More...

void	SetFlags (sal_uInt16 nPos, PolyFlags eFlags)
	set the flags for the point at the given position More...

bool	IsControl (sal_uInt16 nPos) const
	short path to read the CONTROL flag directly (TODO: better explain what the sense behind this flag is!) More...

bool	IsSmooth (sal_uInt16 nPos) const
	short path to read the SMOOTH and SYMMTR flag directly (TODO: better explain what the sense behind these flags is!) More...

double	CalcDistance (sal_uInt16 nP1, sal_uInt16 nP2)
	calculate the euclidean distance between two points More...

void	CalcSmoothJoin (sal_uInt16 nCenter, sal_uInt16 nDrag, sal_uInt16 nPnt)
	Calculate a smooth transition to connect two Bézier curves. More...

void	CalcTangent (sal_uInt16 nCenter, sal_uInt16 nPrev, sal_uInt16 nNext)
	Calculate tangent between two Bézier curves. More...

void	PointsToBezier (sal_uInt16 nFirst)
	convert four polygon points into a Bézier curve More...

void	Scale (double fSx, double fSy)
	scale in X- and/or Y-direction More...

void	Distort (const tools::Rectangle &rRefRect, const XPolygon &rDistortedRect)
	Distort a polygon by scaling its coordinates relative to a reference rectangle into an arbitrary rectangle. More...

basegfx::B2DPolygon	getB2DPolygon () const

	XPolygon (const basegfx::B2DPolygon &rPolygon)

Private Member Functions
void	SubdivideBezier (sal_uInt16 nPos, bool bCalcFirst, double fT)

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)
	Generate a Bézier arc. More...

Static Private Member Functions
static bool	CheckAngles (Degree100 &nStart, Degree100 nEnd, Degree100 &nA1, Degree100 &nA2)

Private Attributes
o3tl::cow_wrapper< ImpXPolygon >	pImpXPolygon

Detailed Description

Definition at line 45 of file xpoly.hxx.

Constructor & Destructor Documentation

◆ XPolygon() [1/7]

XPolygon::XPolygon ( sal_uInt16 nSize = 16 )

Definition at line 198 of file _xpoly.cxx.

◆ XPolygon() [2/7]

XPolygon::XPolygon ( const XPolygon & )

default

◆ XPolygon() [3/7]

XPolygon::XPolygon ( XPolygon && )

default

◆ XPolygon() [4/7]

XPolygon::XPolygon ( const tools::Polygon & rPoly )

create a XPolygon out of a standard polygon

Definition at line 208 of file _xpoly.cxx.

References tools::Polygon::GetFlags(), tools::Polygon::GetSize(), i, and pImpXPolygon.

◆ XPolygon() [5/7]

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

create a rectangle (also with rounded corners) as a Bézier polygon

Definition at line 222 of file _xpoly.cxx.

References Point::AdjustX(), Point::AdjustY(), tools::Rectangle::BottomLeft(), tools::Rectangle::BottomRight(), GenBezArc(), tools::Rectangle::GetHeight(), tools::Rectangle::GetWidth(), nPos, pImpXPolygon, tools::Rectangle::TopLeft(), and tools::Rectangle::TopRight().

◆ XPolygon() [6/7]

XPolygon::XPolygon	(	const Point &	rCenter,
		tools::Long	nRx,
		tools::Long	nRy,
		Degree100	nStartAngle = `0_deg100`,
		Degree100	nEndAngle = `36000_deg100`,
		bool	bClose = `true`
	)

create an ellipse (curve) as Bézier polygon

Definition at line 282 of file _xpoly.cxx.

References CheckAngles(), GenBezArc(), o3tl::strong_int< typename UNDERLYING_TYPE, typename PHANTOM_TYPE >::get(), nPos, and pImpXPolygon.

◆ ~XPolygon()

XPolygon::~XPolygon ( )

default

References Insert(), Move, and Remove.

◆ XPolygon() [7/7]

XPolygon::XPolygon ( const basegfx::B2DPolygon & rPolygon )

explicit

Definition at line 821 of file _xpoly.cxx.

References tools::Polygon::GetFlags(), tools::Polygon::GetSize(), i, pImpXPolygon, and Polygon.

Member Function Documentation

◆ CalcDistance()

double XPolygon::CalcDistance	(	sal_uInt16	nP1,
		sal_uInt16	nP2
	)

calculate the euclidean distance between two points

Parameters

nP1	The first point
nP2	The second point

Definition at line 483 of file _xpoly.cxx.

References pImpXPolygon, Point::X(), and Point::Y().

Referenced by CalcSmoothJoin(), CalcTangent(), and PointsToBezier().

◆ CalcSmoothJoin()

void XPolygon::CalcSmoothJoin	(	sal_uInt16	nCenter,
		sal_uInt16	nDrag,
		sal_uInt16	nPnt
	)

Calculate a smooth transition to connect two Bézier curves.

This is done by projecting the corresponding point onto a line between two other points.

Parameters

nCenter	The point at the end or beginning of the curve. If nCenter is at the end of the polygon the point is moved to the opposite side.
nDrag	The moved point that specifies the relocation.
nPnt	The point to modify.

Definition at line 615 of file _xpoly.cxx.

References CalcDistance(), o3tl::cow_wrapper< typename T, class MTPolicy >::get(), GetFlags(), IsControl(), pImpXPolygon, Point::setX(), Point::setY(), Point::X(), and Point::Y().

◆ CalcTangent()

void XPolygon::CalcTangent	(	sal_uInt16	nCenter,
		sal_uInt16	nPrev,
		sal_uInt16	nNext
	)

Calculate tangent between two Bézier curves.

Parameters

nCenter	start or end point of the curves
nPrev	previous reference point
nNext	next reference point

Definition at line 644 of file _xpoly.cxx.

References CalcDistance(), GetFlags(), pImpXPolygon, Point::setX(), Point::setY(), Point::X(), and Point::Y().

Referenced by ImpPathForDragAndCreate::EndCreate(), and ImpPathForDragAndCreate::MovCreate().

◆ CheckAngles()

bool XPolygon::CheckAngles	(	Degree100 &	nStart,
		Degree100	nEnd,
		Degree100 &	nA1,
		Degree100 &	nA2
	)

staticprivate

Definition at line 587 of file _xpoly.cxx.

References o3tl::strong_int< typename UNDERLYING_TYPE, typename PHANTOM_TYPE >::get().

Referenced by XPolygon().

◆ Distort()

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

Distort a polygon by scaling its coordinates relative to a reference rectangle into an arbitrary rectangle.

Mapping between polygon corners and reference rectangle: 0: top left 0-—1 1: top right | | 2: bottom right 3-—2 3: bottom left

Definition at line 762 of file _xpoly.cxx.

References DBG_ASSERT, tools::Rectangle::GetHeight(), tools::Rectangle::GetWidth(), i, tools::Rectangle::Left(), pImpXPolygon, Point::setX(), Point::setY(), tools::Rectangle::Top(), Point::X(), X1, X2, Point::Y(), Y1, and Y2.

Referenced by SdrEditView::ImpDistortObj().

◆ GenBezArc()

void XPolygon::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
	)