# Gdk::Rectangle Class Reference

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

List of all members.

## Public Member Functions

| Rectangle ()
| Rectangle (const GdkRectangle* gobject)
GdkRectangle* | gobj ()
| Provides access to the underlying C instance.
const GdkRectangle* | gobj () const
| Provides access to the underlying C instance.
| Rectangle (int x, int y, int width, int height)
| Creates a new rectangle instance with these dimensions.
Rectangle& | join (const Rectangle& src2)
| Calculates the union of two rectangles.
Rectangle& | intersect (const Rectangle& src2)
| Calculates the intersection of two rectangles, changing this rectangle.
Rectangle& | intersect (const Rectangle& src2, bool& rectangles_intersect)
| Calculates the intersection of two rectangles, changing this rectangle.
bool | has_zero_area () const
| Checks whether either the width or height are 0.
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)

## Protected Attributes

GdkRectangle | gobject_

## Related Functions

(Note that these are not member functions.)
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 union().

## Constructor & Destructor Documentation

Gdk::Rectangle::Rectangle | ( |  | ) |

Gdk::Rectangle::Rectangle | ( | const GdkRectangle * | gobject | ) | `[explicit]`

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

Creates a new rectangle instance with these dimensions.

## Member Function Documentation

int Gdk::Rectangle::get_height | ( |  | ) | const

int Gdk::Rectangle::get_width | ( |  | ) | const

int Gdk::Rectangle::get_x | ( |  | ) | const

int Gdk::Rectangle::get_y | ( |  | ) | const

const GdkRectangle* Gdk::Rectangle::gobj | ( |  | ) | const`[inline]`

Provides access to the underlying C instance.

GdkRectangle* Gdk::Rectangle::gobj | ( |  | ) | `[inline]`

Provides access to the underlying C instance.

bool Gdk::Rectangle::has_zero_area | ( |  | ) | const

Checks whether either the width or height are 0.

Returns:
  Whether this rectangle has any non-0 area.

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 is 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.

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 is 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.
  rectangles_interesect | This will be set to true if the rectangles intersect.

Returns:
  A reference to this rectangle.

Rectangle& Gdk::Rectangle::join | ( | const Rectangle& | src2 | ) |

Calculates the union of two rectangles.

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.

void Gdk::Rectangle::set_height | ( | const int & | value | ) |

void Gdk::Rectangle::set_width | ( | const int & | value | ) |

void Gdk::Rectangle::set_x | ( | const int & | value | ) |

void Gdk::Rectangle::set_y | ( | const int & | value | ) |

## Friends And Related Function Documentation

Gdk::Rectangle& wrap | ( | GdkRectangle * | object | ) | `[related]`

Parameters:

  object | The C instance

Returns:
  A C++ instance that wraps this C instance.

const Gdk::Rectangle& wrap | ( | const GdkRectangle * | object | ) | `[related]`

Parameters:

  object | The C instance

Returns:
  A C++ instance that wraps this C instance.

## Member Data Documentation

GdkRectangle Gdk::Rectangle::gobject_ `[protected]`

The documentation for this class was generated from the following file:

- gdkmm/rectangle.h