wxRealPoint Class Reference

#include </home/zeitlin/src/wx/github/interface/wx/gdicmn.h>

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Detailed Description

A wxRealPoint is a useful data structure for graphics operations.

It contains floating point x and y members. See wxPoint for an integer version.

Note that the coordinates stored inside a wxRealPoint object may be negative and that wxRealPoint functions do not perform any check against negative values.

Library:  wxCore

Category:  Data Structures

参照:

wxPoint

Public Member Functions
	wxRealPoint ()
	Initializes to zero the x and y members.
	wxRealPoint (double x, double y)
	Initializes the point with the given coordinates.
	wxRealPoint (const wxPoint &pt)
	Converts the given wxPoint (with integer coordinates) to a wxRealPoint.
Miscellaneous operators
Note that these operators are documented as class members (to make them easier to find) but, as their prototype shows, they are implemented as global operators; note that this is transparent to the user but it helps to understand why the following functions are documented to take the wxPoint they operate on as an explicit argument.
wxRealPoint &	operator= (const wxRealPoint &pt)
bool	operator== (const wxRealPoint &p1, const wxRealPoint &p2)
bool	operator!= (const wxRealPoint &p1, const wxRealPoint &p2)
wxRealPoint	operator+ (const wxRealPoint &p1, const wxRealPoint &p2)
wxRealPoint	operator- (const wxRealPoint &p1, const wxRealPoint &p2)
wxRealPoint &	operator+= (const wxRealPoint &pt)
wxRealPoint &	operator-= (const wxRealPoint &pt)
wxRealPoint	operator+ (const wxRealPoint &pt, const wxSize &sz)
wxRealPoint	operator- (const wxRealPoint &pt, const wxSize &sz)
wxRealPoint	operator+ (const wxSize &sz, const wxRealPoint &pt)
wxRealPoint	operator- (const wxSize &sz, const wxRealPoint &pt)
wxRealPoint &	operator+= (const wxSize &sz)
wxRealPoint &	operator-= (const wxSize &sz)
wxSize	operator/ (const wxRealPoint &sz, int factor)
wxSize	operator* (const wxRealPoint &sz, int factor)
wxSize	operator* (int factor, const wxSize &sz)
wxSize &	operator/= (int factor)
wxSize &	operator*= (int factor)
Public Attributes
double	x
	X coordinate of this point.
double	y
	Y coordinate of this point.

List of all members.

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Constructor & Destructor Documentation

wxRealPoint::wxRealPoint

(

)

Initializes to zero the x and y members.

wxRealPoint::wxRealPoint	(	double	x,
		double	y
	)

Initializes the point with the given coordinates.

wxRealPoint::wxRealPoint

(

const wxPoint &

pt

)

Converts the given wxPoint (with integer coordinates) to a wxRealPoint.

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Member Function Documentation

bool wxRealPoint::operator!=	(	const wxRealPoint &	p1,
		const wxRealPoint &	p2
	)

wxSize wxRealPoint::operator*	(	int	factor,
		const wxSize &	sz
	)

wxSize wxRealPoint::operator*	(	const wxRealPoint &	sz,
		int	factor
	)

wxSize& wxRealPoint::operator*=

(

int

factor

)

wxRealPoint wxRealPoint::operator+	(	const wxRealPoint &	pt,
		const wxSize &	sz
	)

wxRealPoint wxRealPoint::operator+	(	const wxRealPoint &	p1,
		const wxRealPoint &	p2
	)

wxRealPoint wxRealPoint::operator+	(	const wxSize &	sz,
		const wxRealPoint &	pt
	)

wxRealPoint& wxRealPoint::operator+=

(

const wxSize &

sz

)

wxRealPoint& wxRealPoint::operator+=

(

const wxRealPoint &

pt

)

wxRealPoint wxRealPoint::operator-	(	const wxRealPoint &	pt,
		const wxSize &	sz
	)

wxRealPoint wxRealPoint::operator-	(	const wxRealPoint &	p1,
		const wxRealPoint &	p2
	)

wxRealPoint wxRealPoint::operator-	(	const wxSize &	sz,
		const wxRealPoint &	pt
	)

wxRealPoint& wxRealPoint::operator-=

(

const wxRealPoint &

pt

)

wxRealPoint& wxRealPoint::operator-=

(

const wxSize &

sz

)

wxSize wxRealPoint::operator/	(	const wxRealPoint &	sz,
		int	factor
	)

wxSize& wxRealPoint::operator/=

(

int

factor

)

wxRealPoint& wxRealPoint::operator=

(

const wxRealPoint &

pt

)

bool wxRealPoint::operator==	(	const wxRealPoint &	p1,
		const wxRealPoint &	p2
	)

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Member Data Documentation

double wxRealPoint::x

X coordinate of this point.

double wxRealPoint::y

Y coordinate of this point.