Atk::Image Class Reference

The ATK Interface implemented by components which expose image or pixmap content on-screen. More...

#include <atkmm/image.h>

Inheritance diagram for Atk::Image:

Public Member Functions
	Image (Image && src) noexcept
Image &	operator= (Image && src) noexcept
	~Image () noexcept override
AtkImage *	gobj ()
	Provides access to the underlying C GObject. More...
const AtkImage *	gobj () const
	Provides access to the underlying C GObject. More...
bool	set_image_description (const Glib::ustring & description)
	Sets the textual description for this image. More...
Glib::ustring	get_image_description () const
	Get a textual description of this image. More...
void	get_image_size (int & width, int & height) const
	Get the width and height in pixels for the specified image. More...
void	get_image_position (int & x, int & y, CoordType coord_type) const
	Gets the position of the image in the form of a point specifying the images top-left corner. More...

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

Protected Member Functions
	Image ()
	You should derive from this class to use it. More...
virtual bool	set_image_description_vfunc (const Glib::ustring & description)
virtual const char *	get_image_description_vfunc () const
virtual void	get_image_position_vfunc (int & x, int & y, CoordType coord_type) const
virtual void	get_image_size_vfunc (int & width, int & height) const

Related Functions
(Note that these are not member functions.)
Glib::RefPtr< Atk::Image >	wrap (AtkImage * object, bool take_copy=false)
	A Glib::wrap() method for this object. More...

Detailed Description

The ATK Interface implemented by components which expose image or pixmap content on-screen.

This should be implemented by Atk::Object subtypes on behalf of components which display image/pixmap information onscreen, and which provide information (other than just widget borders, etc.) via that image content. For instance, icons, buttons with icons, toolbar elements, and image viewing panes typically should implement AtkImage.

Atk::Image primarily provides two types of information: coordinate information (useful for screen review mode of screenreaders, and for use by onscreen magnifiers), and descriptive information. The descriptive information is provided for alternative, text-only presentation of the most significant information present in the image.

Constructor & Destructor Documentation

Image() [1/2]

Atk::Image::Image ( )

protected

You should derive from this class to use it.

Image() [2/2]

Atk::Image::Image ( Image &&  src )

noexcept

~Image()

Atk::Image::~Image ( )

overridenoexcept

Member Function Documentation

add_interface()

static void Atk::Image::add_interface ( GType  gtype_implementer )

static

get_image_description()

Glib::ustring Atk::Image::get_image_description

(

)

const

Get a textual description of this image.

Returns

A string representing the image description.

get_image_description_vfunc()

virtual const char * Atk::Image::get_image_description_vfunc ( ) const

protectedvirtual

get_image_position()

void Atk::Image::get_image_position	(	int &	x,
		int &	y,
		CoordType	coord_type
	)		const

Gets the position of the image in the form of a point specifying the images top-left corner.

Parameters

x	Address of int to put x coordinate position; otherwise, -1 if value cannot be obtained.
y	Address of int to put y coordinate position; otherwise, -1 if value cannot be obtained.
coord_type	Specifies whether the coordinates are relative to the screen or to the components top level window.

get_image_position_vfunc()

virtual void Atk::Image::get_image_position_vfunc ( int &  x, int &  y, CoordType  coord_type  ) const

protectedvirtual

get_image_size()

void Atk::Image::get_image_size	(	int &	width,
		int &	height
	)		const

Get the width and height in pixels for the specified image.

The values of width and height are returned as -1 if the values cannot be obtained (for instance, if the object is not onscreen).

Parameters

width	Filled with the image width, or -1 if the value cannot be obtained.
height	Filled with the image height, or -1 if the value cannot be obtained.

get_image_size_vfunc()

virtual void Atk::Image::get_image_size_vfunc ( int &  width, int &  height  ) const

protectedvirtual

get_type()

static GType Atk::Image::get_type ( )

static

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

gobj() [1/2]

AtkImage * Atk::Image::gobj ( )

inline

Provides access to the underlying C GObject.

gobj() [2/2]

const AtkImage * Atk::Image::gobj ( ) const

inline

Provides access to the underlying C GObject.

operator=()

Image & Atk::Image::operator= ( Image &&  src )

noexcept

set_image_description()

bool Atk::Image::set_image_description

(

const Glib::ustring &

description

)

Sets the textual description for this image.

Parameters

description

A string description to set for image.

Returns

Boolean true, or false if operation could not be completed.

set_image_description_vfunc()

virtual bool Atk::Image::set_image_description_vfunc ( const Glib::ustring &  description )

protectedvirtual

Friends And Related Function Documentation

wrap()

Glib::RefPtr< Atk::Image > wrap ( AtkImage *  object, bool  take_copy = false  )

related

A Glib::wrap() method for this object.

Parameters

object	The C instance.
take_copy	False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns

A C++ instance that wraps this C instance.