Pango::Rectangle Class Reference

A Pango::Rectangle represents a rectangle. More...

List of all members.

Public Methods

Rectangle ()

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

Rectangle (const PangoRectangle* src)

void set_x (int x)

Sets the X coordinate of the left side of the rectangle.

void set_y (int y)

Sets the Y coordinate of the top side of the rectangle.

void set_width (int w)

Sets the width of the rectangle.

void set_height (int h)

Sets the height of the rectangle.

int get_x () const

Gets the X coordinate of the left side of the rectangle.

int get_y () const

Gets the Y coordinate of the top side of the rectangle.

int get_width () const

Gets the width of the rectangle.

int get_height () const

Gets the height of the rectangle.

int get_ascent () const

Extracts the ascent from a Pango::Rectangle representing glyph extents.

int get_descent () const

Extracts the descent from a Pango::Rectangle representing glyph extents.

int get_lbearing () const

Extracts the left bearing from a Pango::Rectangle representing glyph extents.

int get_rbearing () const

Extracts the right bearing from a Pango::Rectangle representing glyph extents.

bool equal (const Rectangle& rhs) const

Checks for equality of two Pango::Rectangles.

PangoRectangle* gobj ()

const PangoRectangle* gobj () const

Protected Attributes

PangoRectangle gobject_

Related Functions

(Note that these are not member functions.)

bool operator== (const Rectangle& lhs, const Rectangle& rhs)

bool operator!= (const Rectangle& lhs, const Rectangle& rhs)

Pango::Rectangle& wrap (PangoRectangle* object)

const Pango::Rectangle& wrap (const PangoRectangle* object)

Detailed Description

A Pango::Rectangle represents a rectangle.

It is frequently used to represent the logical or ink extents of a single glyph or section of text. The coordinate system for each rectangle has its origin at the base line and the horizontal origin of the character with increasing coordinates extending to the right and down. get_ascent(), get_descent(), get_lbearing(), and get_rbearing() can be used to convert from the extents rectangle to more traditional font metrics. The units of rectangles usually are in 1/Pango::SCALE of a device unit.

Constructor & Destructor Documentation

Pango::Rectangle::Rectangle ( )

Pango::Rectangle::Rectangle ( int x,

int y,

int width,

int height

)

Pango::Rectangle::Rectangle ( const PangoRectangle* src ) [explicit]

Member Function Documentation

bool Pango::Rectangle::equal ( const Rectangle& rhs ) const

Checks for equality of two Pango::Rectangles.

Parameters:

rhs The Pango::Rectangle to compare with.

Returns:
true if rhs is equal with the rectangle.

int Pango::Rectangle::get_ascent ( ) const [inline]

Extracts the ascent from a Pango::Rectangle representing glyph extents.
The ascent is the distance from the baseline to the highest point of the character. This is positive if the glyph ascends above the baseline.
Returns:
The ascent of the character.

int Pango::Rectangle::get_descent ( ) const [inline]

Extracts the descent from a Pango::Rectangle representing glyph extents.
The descent is the distance from the baseline to the lowest point of the character. This is positive if the glyph descends below the baseline.
Returns:
The descent of the character.

int Pango::Rectangle::get_height ( ) const [inline]

Gets the height of the rectangle.

Returns:
The height.

int Pango::Rectangle::get_lbearing ( ) const [inline]

Extracts the left bearing from a Pango::Rectangle representing glyph extents.
The left bearing is the distance from the horizontal origin to the farthest left point of the character. This is positive for characters drawn completely to the right of the glyph origin.
Returns:
The left bearing of the character.

int Pango::Rectangle::get_rbearing ( ) const [inline]

Extracts the right bearing from a Pango::Rectangle representing glyph extents.
The right bearing is the distance from the horizontal origin to the farthest right point of the character. This is positive except for characters drawn completely to the left of the horizontal origin.
Returns:
The right bearing of the character.

int Pango::Rectangle::get_width ( ) const [inline]

Gets the width of the rectangle.

Returns:
The width.

int Pango::Rectangle::get_x ( ) const [inline]

Gets the X coordinate of the left side of the rectangle.

Returns:
The X coordinate.

int Pango::Rectangle::get_y ( ) const [inline]

Gets the Y coordinate of the top side of the rectangle.

Returns:
The Y coordinate.

const PangoRectangle* Pango::Rectangle::gobj ( ) const [inline]

PangoRectangle* Pango::Rectangle::gobj ( ) [inline]

void Pango::Rectangle::set_height ( int h ) [inline]

Sets the height of the rectangle.

Parameters:

h The new height.

void Pango::Rectangle::set_width ( int w ) [inline]

Sets the width of the rectangle.

Parameters:

w The new width.

void Pango::Rectangle::set_x ( int x ) [inline]

Sets the X coordinate of the left side of the rectangle.

Parameters:

x The new X coordinate.

void Pango::Rectangle::set_y ( int y ) [inline]

Sets the Y coordinate of the top side of the rectangle.

Parameters:

y The new Y coordinate.

Friends And Related Function Documentation

bool operator!= ( const Rectangle& lhs,

const Rectangle& rhs

) [related]

bool operator== ( const Rectangle& lhs,

const Rectangle& rhs

) [related]

const Pango::Rectangle& wrap ( const PangoRectangle* object ) [related]

Pango::Rectangle& wrap ( PangoRectangle* object ) [related]

Member Data Documentation

PangoRectangle Pango::Rectangle::gobject_ [protected]

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

pango/pangomm/rectangle.h