PMPolygon4 Class Reference

#include <PMPolygon4.h>

Public Types
typedef base_type	data_type

Public Member Functions
	PMPolygon4 ()
	PMPolygon4 (const PMRect &r)
	PMPolygon4 (const PMPolygon4 &other)
void	SetPoints (const PMRect &r)
bool16	IsEmpty () const
PMPolygon4 &	operator= (const PMPolygon4 &other)
PMPoint	operator[] (int16 index) const
PMPoint &	operator[] (int16 index)
PMRect	GetContainingRect () const

Detailed Description

A C++ class for a 4-side polygon. This polygon is defined by 4 points.

Constructor & Destructor Documentation

PMPolygon4::PMPolygon4

(

)

Default constructor.

PMPolygon4::PMPolygon4

(

const PMRect &

r

)

Contstructor a polygon with a given rectangle.

Parameters

r	is the rectangle.

PMPolygon4::PMPolygon4

(

const PMPolygon4 &

other

)

Contstructor a polygon with another polygon.

Parameters

other

is the PMPolygon4.

Member Function Documentation

PMRect PMPolygon4::GetContainingRect

(

)

const

Returns

the smallest rectangle that contains this polygon.

bool16 PMPolygon4::IsEmpty

(

)

const

Returns

true if this is an empty polygon.

PMPolygon4& PMPolygon4::operator=

(

const PMPolygon4 &

other

)

Return true if two polygons are equal.

Parameters

other

specifies the other PMPolygon4 to compare with.

Returns

true if both are equal.

PMPoint PMPolygon4::operator[]

(

int16

index

)

const

Returns the nth point of the polygon. 0 is the top left, 1 is top right, 2 is bottom right, 3 is bottom left.

Parameters

index

should be >= 0 and <= 3.

Returns

the nth point.

PMPoint& PMPolygon4::operator[]

(

int16

index

)

Returns the nth point of the polygon. 0 is the top left, 1 is top right, 2 is bottom right, 3 is bottom left.

Parameters

index

should be >= 0 and <= 3.

Returns

the nth point.

void PMPolygon4::SetPoints

(

const PMRect &

r

)

Set four points for the polygon from the given rectangle.

Parameters

r	is the rectangle.