Wt::WRectF Class Reference
[Painting system]

Utility class that defines a rectangle. More...

#include <Wt/WRectF>

List of all members.

Public Member Functions
	WRectF ()
	Default constructor.
	WRectF (double x, double y, double width, double height)
	Construct a rectangle.
	WRectF (const WPointF &topLeft, const WPointF &bottomRight)
	Construct a rectangle.
bool	isNull () const
	Checks for a null rectangle.
void	setX (double x)
	Changes the X-position of the left side.
void	setY (double y)
	Changes the Y-position of the top side.
void	setWidth (double width)
	Changes the width.
void	setHeight (double height)
	Changes the Y-position of the top side.
double	x () const
	Returns the X-position of the left side.
double	y () const
	Returns the Y-position of the top side.
double	width () const
	Returns the width.
double	height () const
	Returns the height.
double	left () const
	Returns the X position of the left side.
double	top () const
	Returns the Y position of the top side.
double	right () const
	Returns the X position of the right side.
double	bottom () const
	Returns the Y position of the bottom side.
WPointF	topLeft () const
	Returns the top left point.
WPointF	topRight () const
	Returns the top right point.
WPointF	center () const
	Returns the center point.
WPointF	bottomLeft () const
	Returns the bottom left point.
WPointF	bottomRight () const
	Returns the bottom right point.
bool	intersects (const WRectF &other) const
	Tests if two rectangles intersect.
WRectF	united (const WRectF &other) const
	Makes the union of to rectangles.

---

Detailed Description

Utility class that defines a rectangle.

The rectangle is defined by a top-left point and a width and height.

---

Constructor & Destructor Documentation

Wt::WRectF::WRectF

(

)

Default constructor.

Constructs a null rectangle.

See also:

isNull()

Wt::WRectF::WRectF	(	double	x,
		double	y,
		double	width,
		double	height
	)

Construct a rectangle.

Constructs a rectangle with top left point (x, y) and size width x height.

Wt::WRectF::WRectF	(	const WPointF &	topLeft,
		const WPointF &	bottomRight
	)

Construct a rectangle.

Constructs a rectangle from the two points topLeft and bottomRight.

---

Member Function Documentation

bool Wt::WRectF::isNull

(

)

const

Checks for a null rectangle.

See also:

WRectF()

void Wt::WRectF::setX

(

double

x

)

Changes the X-position of the left side.

The right side of the rectangle does not move, and as a result, the rectangle may be resized.

void Wt::WRectF::setY

(

double

y

)

Changes the Y-position of the top side.

The bottom side of the rectangle does not move, and as a result, the rectangle may be resized.

void Wt::WRectF::setWidth

(

double

width

)

[inline]

Changes the width.

The right side of the rectangle may move, but does not change the X position of the left side.

void Wt::WRectF::setHeight

(

double

height

)

[inline]

Changes the Y-position of the top side.

The bottom side of the rectangle may move, but does not change the Y position of the top side.

double Wt::WRectF::x

(

)

const [inline]

Returns the X-position of the left side.

This is equivalent to left().

See also:

y(), left()

double Wt::WRectF::y

(

)

const [inline]

Returns the Y-position of the top side.

This is equivalent to top().

See also:

x(), top()

double Wt::WRectF::width

(

)

const [inline]

Returns the width.

See also:

height()

double Wt::WRectF::height

(

)

const [inline]

Returns the height.

See also:

width()

double Wt::WRectF::left

(

)

const [inline]

Returns the X position of the left side.

See also:

x(), right()

double Wt::WRectF::top

(

)

const [inline]

Returns the Y position of the top side.

See also:

y(), bottom()

double Wt::WRectF::right

(

)

const [inline]

Returns the X position of the right side.

See also:

left()

double Wt::WRectF::bottom

(

)

const [inline]

Returns the Y position of the bottom side.

See also:

top()

WPointF Wt::WRectF::topLeft

(

)

const

Returns the top left point.

See also:

left(), top()

WPointF Wt::WRectF::topRight

(

)

const

Returns the top right point.

See also:

right(), top()

WPointF Wt::WRectF::bottomLeft

(

)

const

Returns the bottom left point.

See also:

left(), bottom()

WPointF Wt::WRectF::bottomRight

(

)

const

Returns the bottom right point.

See also:

right(), bottom()