gtkmm: Gdk::Cursor Class Reference

This represents a cursor. More...

Inheritance diagram for Gdk::Cursor:

Public Member Functions
virtual	~Cursor ()

GdkCursor*	gobj ()
	Provides access to the underlying C GObject. More...

const GdkCursor*	gobj () const
	Provides access to the underlying C GObject. More...

GdkCursor*	gobj_copy ()
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...

Glib::RefPtr< Display >	get_display ()
	Returns the display on which the Gdk::Cursor is defined. More...

Glib::RefPtr< const Display >	get_display () const
	Returns the display on which the Gdk::Cursor is defined. More...

Glib::RefPtr< Gdk::Pixbuf >	get_image ()
	Returns a Gdk::Pixbuf with the image used to display the cursor. More...

Glib::RefPtr< const Gdk::Pixbuf >	get_image () const
	Returns a Gdk::Pixbuf with the image used to display the cursor. More...

Cairo::RefPtr< Cairo::Surface >	get_surface (double& x_hot, double& y_hot)
	Returns a cairo image surface with the image used to display the cursor. More...

Cairo::RefPtr< const Cairo::Surface >	get_surface (double& x_hot, double& y_hot) const
	Returns a cairo image surface with the image used to display the cursor. More...

CursorType	get_cursor_type () const
	Returns the cursor type for this cursor. More...

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

static Glib::RefPtr< Cursor >	create (CursorType cursor_type)
	Creates a new cursor from the set of builtin cursors for the default display. More...

static Glib::RefPtr< Cursor >	create (const Glib::RefPtr< Display >& display, CursorType cursor_type)
	Creates a new cursor from the set of builtin cursors. More...

static Glib::RefPtr< Cursor >	create (const Glib::RefPtr< Display >& display, const Glib::RefPtr< Pixbuf >& pixbuf, int x, int y)
	Creates a new cursor from a pixbuf. More...

static Glib::RefPtr< Cursor >	create (const Glib::RefPtr< Display >& display, const ::Cairo::RefPtr< ::Cairo::Surface >& surface, double x, double y)
	Creates a new cursor from a cairo image surface. More...

static Glib::RefPtr< Cursor >	create (const Glib::RefPtr< Display >& display, const Glib::ustring& name)
	Creates a new cursor by looking up name in the current cursor theme. More...

Protected Member Functions
	Cursor (const Glib::RefPtr< Display >& display, const Glib::ustring& name)

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

Detailed Description

This represents a cursor.

Constructor & Destructor Documentation

virtual Gdk::Cursor::~Cursor ( )

virtual

Gdk::Cursor::Cursor	(	const Glib::RefPtr< Display >&	display,
		const Glib::ustring &	name
	)

explicitprotected

Member Function Documentation

static Glib::RefPtr<Cursor> Gdk::Cursor::create ( CursorType cursor_type )

static

Creates a new cursor from the set of builtin cursors for the default display.

See new_for_display().

To make the cursor invisible, use Gdk::BLANK_CURSOR.

Parameters

cursor_type Cursor to create.

Returns: A new Gdk::Cursor.

static Glib::RefPtr<Cursor> Gdk::Cursor::create	(	const Glib::RefPtr< Display >&	display,
		CursorType	cursor_type
	)

static

Creates a new cursor from the set of builtin cursors.

Some useful ones are:

<inlinegraphic format="PNG" fileref="right_ptr.png"></inlinegraphic> Gdk::RIGHT_PTR (right-facing arrow)
<inlinegraphic format="PNG" fileref="crosshair.png"></inlinegraphic> Gdk::CROSSHAIR (crosshair)
<inlinegraphic format="PNG" fileref="xterm.png"></inlinegraphic> Gdk::XTERM (I-beam)
<inlinegraphic format="PNG" fileref="watch.png"></inlinegraphic> Gdk::WATCH (busy)
<inlinegraphic format="PNG" fileref="fleur.png"></inlinegraphic> Gdk::FLEUR (for moving objects)
<inlinegraphic format="PNG" fileref="hand1.png"></inlinegraphic> Gdk::HAND1 (a right-pointing hand)
<inlinegraphic format="PNG" fileref="hand2.png"></inlinegraphic> Gdk::HAND2 (a left-pointing hand)
<inlinegraphic format="PNG" fileref="left_side.png"></inlinegraphic> Gdk::LEFT_SIDE (resize left side)
<inlinegraphic format="PNG" fileref="right_side.png"></inlinegraphic> Gdk::RIGHT_SIDE (resize right side)
<inlinegraphic format="PNG" fileref="top_left_corner.png"></inlinegraphic> Gdk::TOP_LEFT_CORNER (resize northwest corner)
<inlinegraphic format="PNG" fileref="top_right_corner.png"></inlinegraphic> Gdk::TOP_RIGHT_CORNER (resize northeast corner)
<inlinegraphic format="PNG" fileref="bottom_left_corner.png"></inlinegraphic> Gdk::BOTTOM_LEFT_CORNER (resize southwest corner)
<inlinegraphic format="PNG" fileref="bottom_right_corner.png"></inlinegraphic> Gdk::BOTTOM_RIGHT_CORNER (resize southeast corner)
<inlinegraphic format="PNG" fileref="top_side.png"></inlinegraphic> Gdk::TOP_SIDE (resize top side)
<inlinegraphic format="PNG" fileref="bottom_side.png"></inlinegraphic> Gdk::BOTTOM_SIDE (resize bottom side)
<inlinegraphic format="PNG" fileref="sb_h_double_arrow.png"></inlinegraphic> Gdk::SB_H_DOUBLE_ARROW (move vertical splitter)
<inlinegraphic format="PNG" fileref="sb_v_double_arrow.png"></inlinegraphic> Gdk::SB_V_DOUBLE_ARROW (move horizontal splitter)
Gdk::BLANK_CURSOR (Blank cursor). Since 2.16

Since gtkmm 2.2:

Parameters

display	The Gdk::Display for which the cursor will be created.
cursor_type	Cursor to create.

Returns: A new Gdk::Cursor.

static Glib::RefPtr<Cursor> Gdk::Cursor::create	(	const Glib::RefPtr< Display >&	display,
		const Glib::RefPtr< Pixbuf >&	pixbuf,
		int	x,
		int	y
	)

static

Creates a new cursor from a pixbuf.

Not all GDK backends support RGBA cursors. If they are not supported, a monochrome approximation will be displayed. The functions Gdk::Display::supports_cursor_alpha() and Gdk::Display::supports_cursor_color() can be used to determine whether RGBA cursors are supported; Gdk::Display::get_default_cursor_size() and Gdk::Display::get_maximal_cursor_size() give information about cursor sizes.

If x or y are -1, the pixbuf must have options named "x_hot" and "y_hot", resp., containing integer values between %0 and the width resp. height of the pixbuf. (

Since gtkmm 3.0:: )

On the X backend, support for RGBA cursors requires a sufficently new version of the X Render extension.

Since gtkmm 2.4:

Parameters

display	The Gdk::Display for which the cursor will be created.
pixbuf	The Gdk::Pixbuf containing the cursor image.
x	The horizontal offset of the 'hotspot' of the cursor.
y	The vertical offset of the 'hotspot' of the cursor.

Returns: A new Gdk::Cursor.

static Glib::RefPtr<Cursor> Gdk::Cursor::create	(	const Glib::RefPtr< Display >&	display,
		const ::Cairo::RefPtr< ::Cairo::Surface > &	surface,
		double	x,
		double	y
	)

static

Creates a new cursor from a cairo image surface.

On the X backend, support for RGBA cursors requires a sufficently new version of the X Render extension.

Since gtkmm 3.10:

Parameters

display	The Gdk::Display for which the cursor will be created.
surface	The cairo image surface containing the cursor pixel data.
x	The horizontal offset of the 'hotspot' of the cursor.
y	The vertical offset of the 'hotspot' of the cursor.

Returns: A new Gdk::Cursor.

static Glib::RefPtr<Cursor> Gdk::Cursor::create	(	const Glib::RefPtr< Display >&	display,
		const Glib::ustring &	name
	)

static

Creates a new cursor by looking up name in the current cursor theme.

Since gtkmm 2.8:

Parameters

display	The Gdk::Display for which the cursor will be created.
name	The name of the cursor.

Returns: A new Gdk::Cursor, or 0 if there is no cursor with the given name.

CursorType Gdk::Cursor::get_cursor_type ( ) const

Returns the cursor type for this cursor.

Since gtkmm 2.22:

Returns: A Gdk::CursorType.

Glib::RefPtr<Display> Gdk::Cursor::get_display ( )

Returns the display on which the Gdk::Cursor is defined.

Since gtkmm 2.2:

Returns: The Gdk::Display associated to cursor.

Glib::RefPtr<const Display> Gdk::Cursor::get_display ( ) const

Returns the display on which the Gdk::Cursor is defined.

Since gtkmm 2.2:

Returns: The Gdk::Display associated to cursor.

Glib::RefPtr<Gdk::Pixbuf> Gdk::Cursor::get_image ( )

Returns a Gdk::Pixbuf with the image used to display the cursor.

Note that depending on the capabilities of the windowing system and on the cursor, GDK may not be able to obtain the image data. In this case, 0 is returned.

Since gtkmm 2.8:

Returns: A Gdk::Pixbuf representing cursor, or 0.

Glib::RefPtr<const Gdk::Pixbuf> Gdk::Cursor::get_image ( ) const

Returns a Gdk::Pixbuf with the image used to display the cursor.

Note that depending on the capabilities of the windowing system and on the cursor, GDK may not be able to obtain the image data. In this case, 0 is returned.

Since gtkmm 2.8:

Returns: A Gdk::Pixbuf representing cursor, or 0.

Cairo::RefPtr<Cairo::Surface> Gdk::Cursor::get_surface	(	double &	x_hot,
		double &	y_hot
	)

Returns a cairo image surface with the image used to display the cursor.

Note that depending on the capabilities of the windowing system and on the cursor, GDK may not be able to obtain the image data. In this case, 0 is returned.

Since gtkmm 3.10:

Parameters

x_hot	Location to store the hotspot x position, or `0`.
y_hot	Location to store the hotspot y position, or `0`.

Returns: A #cairo_surface_t representing cursor, or 0.

Cairo::RefPtr<const Cairo::Surface> Gdk::Cursor::get_surface	(	double &	x_hot,
		double &	y_hot
	)		const

Returns a cairo image surface with the image used to display the cursor.

Note that depending on the capabilities of the windowing system and on the cursor, GDK may not be able to obtain the image data. In this case, 0 is returned.

Since gtkmm 3.10:

Parameters

x_hot	Location to store the hotspot x position, or `0`.
y_hot	Location to store the hotspot y position, or `0`.

Returns: A #cairo_surface_t representing cursor, or 0.

static GType Gdk::Cursor::get_type ( )

static

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

GdkCursor* Gdk::Cursor::gobj ( )

inline

Provides access to the underlying C GObject.

const GdkCursor* Gdk::Cursor::gobj ( ) const

inline

Provides access to the underlying C GObject.

GdkCursor* Gdk::Cursor::gobj_copy ( )

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

Friends And Related Function Documentation

Glib::RefPtr< Gdk::Cursor > wrap	(	GdkCursor *	object,
		bool	take_copy = `false`
	)

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.

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

gdkmm/cursor.h

gtkmm: Gdk::Cursor Class Reference

Public Member Functions

Static Public Member Functions

Protected Member Functions

Related Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation