Gdk::Rectangle Class Reference

Gdk::Rectangle is a structure holding the position and size of a rectangle. More...

#include <gdkmm/rectangle.h>

Public Member Functions
	Rectangle (const Rectangle & other) noexcept
Rectangle &	operator= (const Rectangle & other) noexcept
	Rectangle (Rectangle && other) noexcept
Rectangle &	operator= (Rectangle && other) noexcept
	Rectangle ()
	Rectangle (const GdkRectangle * gobject)
GdkRectangle *	gobj ()
	Provides access to the underlying C instance. More...
const GdkRectangle *	gobj () const
	Provides access to the underlying C instance. More...
	Rectangle (int x, int y, int width, int height)
	Creates a new rectangle instance with these dimensions. More...
bool	operator== (const Rectangle & src) const
Rectangle &	join (const Rectangle & src2)
	Calculates the union of two rectangles, changing this rectangle. More...
Rectangle &	intersect (const Rectangle & src2)
	Calculates the intersection of two rectangles, changing this rectangle. More...
Rectangle &	intersect (const Rectangle & src2, bool & rectangles_intersect)
	Calculates the intersection of two rectangles, changing this rectangle. More...
bool	intersects (const Rectangle & src2) const
	Checks whether two rectangles intersect. More...
bool	has_zero_area () const
	Checks whether either the width or height is 0. More...
int	get_x () const
void	set_x (const int & value)
int	get_y () const
void	set_y (const int & value)
int	get_width () const
void	set_width (const int & value)
int	get_height () const
void	set_height (const int & value)

Static Public Member Functions
static GType	get_type ()
	Get the GType for this class, for use with the underlying GObject type system. More...

Protected Attributes
GdkRectangle	gobject_

Related Functions
(Note that these are not member functions.)
Rectangle	join (const Rectangle & src1, const Rectangle & src2)
	Calculates the union of two rectangles. More...
Rectangle	intersect (const Rectangle & src1, const Rectangle & src2)
	Calculates the intersection of two rectangles. More...
Rectangle	intersect (const Rectangle & src1, const Rectangle & src2, bool & rectangles_intersect)
	Calculates the intersection of two rectangles. More...
Gdk::Rectangle &	wrap (GdkRectangle * object)
const Gdk::Rectangle &	wrap (const GdkRectangle * object)

Detailed Description

Gdk::Rectangle is a structure holding the position and size of a rectangle.

The intersection of two rectangles can be computed with intersect(). To find the union of two rectangles use join().

Constructor & Destructor Documentation

Rectangle() [1/5]

Gdk::Rectangle::Rectangle ( const Rectangle &  other )

noexcept

Rectangle() [2/5]

Gdk::Rectangle::Rectangle ( Rectangle &&  other )

noexcept

Rectangle() [3/5]

Gdk::Rectangle::Rectangle

(

)

Rectangle() [4/5]

Gdk::Rectangle::Rectangle ( const GdkRectangle *  gobject )

explicit

Rectangle() [5/5]

Gdk::Rectangle::Rectangle	(	int	x,
		int	y,
		int	width,
		int	height
	)

Creates a new rectangle instance with these dimensions.

Member Function Documentation

get_height()

int Gdk::Rectangle::get_height

(

)

const

get_type()

static GType Gdk::Rectangle::get_type ( )

static

Get the GType for this class, for use with the underlying GObject type system.

get_width()

int Gdk::Rectangle::get_width

(

)

const

get_x()

int Gdk::Rectangle::get_x

(

)

const

get_y()

int Gdk::Rectangle::get_y

(

)

const

gobj() [1/2]

GdkRectangle * Gdk::Rectangle::gobj ( )

inline

Provides access to the underlying C instance.

gobj() [2/2]

const GdkRectangle * Gdk::Rectangle::gobj ( ) const

inline

Provides access to the underlying C instance.

has_zero_area()

bool Gdk::Rectangle::has_zero_area

(

)

const

Checks whether either the width or height is 0.

Returns

Whether this rectangle has 0 area.

intersect() [1/2]

Rectangle & Gdk::Rectangle::intersect

(

const Rectangle &

src2

)

Calculates the intersection of two rectangles, changing this rectangle.

If the rectangles do not intersect, this rectangle's width and height are set to 0 and its x and y values are undefined.

This method returns a reference to this instance, allowing you to then call another method easily. For instance: rect.intersect(src2).join(src3);

Parameters

src2	The rectangle with which to calculate the intersection with this rectangle.

Returns

A reference to this rectangle.

intersect() [2/2]

Rectangle & Gdk::Rectangle::intersect	(	const Rectangle &	src2,
		bool &	rectangles_intersect
	)

Calculates the intersection of two rectangles, changing this rectangle.

If the rectangles do not intersect, this rectangle's width and height are set to 0 and its x and y values are undefined.

This method returns a reference to this instance, allowing you to then call another method easily. For instance: rect.intersect(src2, rectangles_intersect).join(src3);

Parameters

	src2	The rectangle with which to calculate the intersection with this rectangle.
[out]	rectangles_intersect	This will be set to true if the rectangles intersect, else false.

Returns

A reference to this rectangle.

intersects()

bool Gdk::Rectangle::intersects

(

const Rectangle &

src2

)

const

Checks whether two rectangles intersect.

Since gtkmm 3.8:

Parameters

src2	The rectangle with which to check intersection with this rectangle.

Returns

Whether this rectangle intersects src2.

join()

Rectangle & Gdk::Rectangle::join

(

const Rectangle &

src2

)

Calculates the union of two rectangles, changing this rectangle.

The union of this rectangle and src2 is the smallest rectangle which includes both this rectangle and src2 within it.

This method returns a reference to this instance, allowing you to then call another method easily. For instance: rect.join(src2).intersect(src3);

Parameters

src2	The rectangle with which to calculate the union with this rectangle.

Returns

A reference to this rectangle.

operator=() [1/2]

Rectangle & Gdk::Rectangle::operator= ( const Rectangle &  other )

noexcept

operator=() [2/2]

Rectangle & Gdk::Rectangle::operator= ( Rectangle &&  other )

noexcept

operator==()

bool Gdk::Rectangle::operator==

(

const Rectangle &

src

)

const

Since gtkmm 3.20:

set_height()

void Gdk::Rectangle::set_height

(

const int &

value

)

set_width()

void Gdk::Rectangle::set_width

(

const int &

value

)

set_x()

void Gdk::Rectangle::set_x

(

const int &

value

)

set_y()

void Gdk::Rectangle::set_y

(

const int &

value

)

Friends And Related Function Documentation

intersect() [1/2]

Rectangle intersect ( const Rectangle &  src1, const Rectangle &  src2  )

related

Calculates the intersection of two rectangles.

If the rectangles do not intersect, the returned rectangle's width and height are set to 0 and its x and y values are undefined.

Since gtkmm 3.8:

Parameters

src1	One of the rectangles.
src2	The other rectangle.

Returns

The intersection of src1 and src2.

intersect() [2/2]

Rectangle intersect ( const Rectangle &  src1, const Rectangle &  src2, bool &  rectangles_intersect  )

related

Calculates the intersection of two rectangles.

If the rectangles do not intersect, the returned rectangle's width and height are set to 0 and its x and y values are undefined.

Since gtkmm 3.8:

Parameters

	src1	One of the rectangles.
	src2	The other rectangle.
[out]	rectangles_intersect	This will be set to true if the rectangles intersect, else false.

Returns

The intersection of src1 and src2.

join()

Rectangle join ( const Rectangle &  src1, const Rectangle &  src2  )

related

Calculates the union of two rectangles.

The union of src1 and src2 is the smallest rectangle which includes both src1 and src2 within it.

Since gtkmm 3.8:

Parameters

src1	One of the rectangles.
src2	The other rectangle.

Returns

The union of src1 and src2.

wrap() [1/2]

const Gdk::Rectangle & wrap ( const GdkRectangle *  object )

related

Parameters

object

The C instance

Returns

A C++ instance that wraps this C instance.

wrap() [2/2]

Gdk::Rectangle & wrap ( GdkRectangle *  object )

related

Parameters

object

The C instance

Returns

A C++ instance that wraps this C instance.

Member Data Documentation

gobject_

GdkRectangle Gdk::Rectangle::gobject_

protected