gtkmm: Gtk::CenterLayout Class Reference

A centering layout. More...

#include <gtkmm/centerlayout.h>

Inheritance diagram for Gtk::CenterLayout:

[legend]

Public Member Functions
	CenterLayout (CenterLayout &&src) noexcept

CenterLayout &	operator= (CenterLayout &&src) noexcept

	~CenterLayout () noexcept override

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

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

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

void	set_orientation (Orientation orientation)
	Sets the orientation of self.

Orientation	get_orientation () const
	Gets the current orienration of the layout manager.

void	set_baseline_position (BaselinePosition baseline_position)
	Sets the new baseline position of self.

BaselinePosition	get_baseline_position () const
	Returns the baseline position of the layout.

void	set_start_widget (Widget *widget)
	Sets the new start widget of self.

Widget *	get_start_widget ()
	Returns the start widget of the layout.

const Widget *	get_start_widget () const
	Returns the start widget of the layout.

void	set_center_widget (Widget *widget)
	Sets the new center widget of self.

Widget *	get_center_widget ()
	Returns the center widget of the layout.

const Widget *	get_center_widget () const
	Returns the center widget of the layout.

void	set_end_widget (Widget *widget)
	Sets the new end widget of self.

Widget *	get_end_widget ()
	Returns the end widget of the layout.

const Widget *	get_end_widget () const
	Returns the end widget of the layout.

void	set_shrink_center_last (bool shrink_center_last=true)
	Sets whether to shrink the center widget after other children.

bool	get_shrink_center_last () const
	Gets whether self shrinks the center widget after other children.

Glib::PropertyProxy< bool >	property_shrink_center_last ()
	Whether to shrink the center widget after other children.

Glib::PropertyProxy_ReadOnly< bool >	property_shrink_center_last () const
	Whether to shrink the center widget after other children.

Public Member Functions inherited from Gtk::LayoutManager
	LayoutManager (LayoutManager &&src) noexcept

LayoutManager &	operator= (LayoutManager &&src) noexcept

	~LayoutManager () noexcept override

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

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

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

void	measure (Widget &widget, Orientation orientation, int for_size, int & minimum, int & natural, int &minimum_baseline, int &natural_baseline) const
	Measures the size of the widget using manager, for the given orientation and size.

void	allocate (Widget &widget, int width, int height, int baseline)
	Assigns the given width, height, and baseline to a widget, and computes the position and sizes of the children of the widget using the layout management policy of manager.

SizeRequestMode	get_request_mode () const
	Retrieves the request mode of manager.

Widget *	get_widget ()
	Retrieves the `Gtk::Widget` using the given `Gtk::LayoutManager`.

const Widget *	get_widget () const
	Retrieves the `Gtk::Widget` using the given `Gtk::LayoutManager`.

void	layout_changed ()
	Queues a resize on the `Gtk::Widget` using manager, if any.

Glib::RefPtr< LayoutChild >	get_layout_child (Widget &child)
	Retrieves a `Gtk::LayoutChild` instance for the `Gtk::LayoutManager`, creating one if necessary.

Glib::RefPtr< const LayoutChild >	get_layout_child (Widget &child) const
	Retrieves a `Gtk::LayoutChild` instance for the `Gtk::LayoutManager`, creating one if necessary.

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

static Glib::RefPtr< CenterLayout >	create ()

Static Public Member Functions inherited from Gtk::LayoutManager
static GType	get_type ()
	Get the GType for this class, for use with the underlying GObject type system.

Protected Member Functions
	CenterLayout ()

Protected Member Functions inherited from Gtk::LayoutManager
	LayoutManager ()
	There is no create() method that corresponds to this constructor, because only derived classes shall be created.

virtual SizeRequestMode	get_request_mode_vfunc (const Widget &widget) const

virtual void	measure_vfunc (const Widget &widget, Orientation orientation, int for_size, int & minimum, int & natural, int &minimum_baseline, int &natural_baseline) const

virtual void	allocate_vfunc (const Widget &widget, int width, int height, int baseline)

virtual Glib::RefPtr< LayoutChild >	create_layout_child_vfunc (const Widget &widget, const Widget &for_child)

virtual void	root_vfunc ()

virtual void	unroot_vfunc ()

Related Symbols
(Note that these are not member symbols.)
Glib::RefPtr< Gtk::CenterLayout >	wrap (GtkCenterLayout *object, bool take_copy=false)
	A Glib::wrap() method for this object.

Related Symbols inherited from Gtk::LayoutManager
Glib::RefPtr< Gtk::LayoutManager >	wrap (GtkLayoutManager *object, bool take_copy=false)
	A Glib::wrap() method for this object.

Detailed Description

A centering layout.

A Gtk::CenterLayout is a layout manager that manages up to three children. The start widget is allocated at the start of the layout (left in LRT layouts and right in RTL ones), and the end widget at the end.

The center widget is centered regarding the full width of the layout.

Since gtkmm 3.96:

Constructor & Destructor Documentation

◆ CenterLayout() [1/2]

Gtk::CenterLayout::CenterLayout ( CenterLayout && src )

noexcept

◆ ~CenterLayout()

Gtk::CenterLayout::~CenterLayout ( )

overridenoexcept

◆ CenterLayout() [2/2]

Gtk::CenterLayout::CenterLayout ( )

protected

Member Function Documentation

◆ create()

static Glib::RefPtr< CenterLayout > Gtk::CenterLayout::create ( )

static

◆ get_baseline_position()

BaselinePosition Gtk::CenterLayout::get_baseline_position ( ) const

Returns the baseline position of the layout.

Returns: The current baseline position of self.

◆ get_center_widget() [1/2]

Widget * Gtk::CenterLayout::get_center_widget ( )

Returns the center widget of the layout.

Returns: The current center widget of self.

◆ get_center_widget() [2/2]

const Widget * Gtk::CenterLayout::get_center_widget ( ) const

Returns the center widget of the layout.

Returns: The current center widget of self.

◆ get_end_widget() [1/2]

Widget * Gtk::CenterLayout::get_end_widget ( )

Returns the end widget of the layout.

Returns: The current end widget of self.

◆ get_end_widget() [2/2]

const Widget * Gtk::CenterLayout::get_end_widget ( ) const

Returns the end widget of the layout.

Returns: The current end widget of self.

◆ get_orientation()

Orientation Gtk::CenterLayout::get_orientation ( ) const

Gets the current orienration of the layout manager.

Returns: The current orientation of self.

◆ get_shrink_center_last()

bool Gtk::CenterLayout::get_shrink_center_last ( ) const

Gets whether self shrinks the center widget after other children.

Since gtkmm 4.12:

Returns: Whether to shrink the center widget after others.

◆ get_start_widget() [1/2]

Widget * Gtk::CenterLayout::get_start_widget ( )

Returns the start widget of the layout.

Returns: The current start widget of self.

◆ get_start_widget() [2/2]

const Widget * Gtk::CenterLayout::get_start_widget ( ) const

Returns the start widget of the layout.

Returns: The current start widget of self.

◆ get_type()

static GType Gtk::CenterLayout::get_type ( )

static

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

◆ gobj() [1/2]

GtkCenterLayout * Gtk::CenterLayout::gobj ( )

inline

Provides access to the underlying C GObject.

◆ gobj() [2/2]

const GtkCenterLayout * Gtk::CenterLayout::gobj ( ) const

inline

Provides access to the underlying C GObject.

◆ gobj_copy()

GtkCenterLayout * Gtk::CenterLayout::gobj_copy ( )

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

◆ operator=()

CenterLayout & Gtk::CenterLayout::operator= ( CenterLayout && src )

noexcept

◆ property_shrink_center_last() [1/2]

Glib::PropertyProxy< bool > Gtk::CenterLayout::property_shrink_center_last ( )

Whether to shrink the center widget after other children.

By default, when there's no space to give all three children their natural widths, the start and end widgets start shrinking and the center child keeps natural width until they reach minimum width.

If set to false, start and end widgets keep natural width and the center widget starts shrinking instead.

Since gtkmm 4.12:

Default value: true

Returns: A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

◆ property_shrink_center_last() [2/2]

Glib::PropertyProxy_ReadOnly< bool > Gtk::CenterLayout::property_shrink_center_last ( ) const

Whether to shrink the center widget after other children.

By default, when there's no space to give all three children their natural widths, the start and end widgets start shrinking and the center child keeps natural width until they reach minimum width.

If set to false, start and end widgets keep natural width and the center widget starts shrinking instead.

Since gtkmm 4.12:

Default value: true

Returns: A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

◆ set_baseline_position()

void Gtk::CenterLayout::set_baseline_position ( BaselinePosition baseline_position )

Sets the new baseline position of self.

Parameters

baseline_position The new baseline position.

◆ set_center_widget()

void Gtk::CenterLayout::set_center_widget ( Widget * widget )

Sets the new center widget of self.

To remove the existing center widget, pass nullptr.

Parameters

widget The new center widget.

◆ set_end_widget()

void Gtk::CenterLayout::set_end_widget ( Widget * widget )

Sets the new end widget of self.

To remove the existing center widget, pass nullptr.

Parameters

widget The new end widget.

◆ set_orientation()

void Gtk::CenterLayout::set_orientation ( Orientation orientation )

Sets the orientation of self.

Parameters

orientation The new orientation.

◆ set_shrink_center_last()

void Gtk::CenterLayout::set_shrink_center_last ( bool shrink_center_last = true )

Sets whether to shrink the center widget after other children.

By default, when there's no space to give all three children their natural widths, the start and end widgets start shrinking and the center child keeps natural width until they reach minimum width.

If set to false, start and end widgets keep natural width and the center widget starts shrinking instead.

Since gtkmm 4.12:

Parameters

shrink_center_last Whether to shrink the center widget after others.

◆ set_start_widget()

void Gtk::CenterLayout::set_start_widget ( Widget * widget )

Sets the new start widget of self.

To remove the existing start widget, pass nullptr.

Parameters

widget The new start widget.

Friends And Related Symbol Documentation

◆ wrap()

Glib::RefPtr< Gtk::CenterLayout > wrap	(	GtkCenterLayout *	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.

Public Member Functions

Static Public Member Functions

Protected Member Functions

Related Symbols

Detailed Description

Constructor & Destructor Documentation

◆ CenterLayout() [1/2]

◆ ~CenterLayout()

◆ CenterLayout() [2/2]

Member Function Documentation

◆ create()

◆ get_baseline_position()

◆ get_center_widget() [1/2]

◆ get_center_widget() [2/2]

◆ get_end_widget() [1/2]

◆ get_end_widget() [2/2]

◆ get_orientation()

◆ get_shrink_center_last()

◆ get_start_widget() [1/2]

◆ get_start_widget() [2/2]

◆ get_type()

◆ gobj() [1/2]

◆ gobj() [2/2]

◆ gobj_copy()

◆ operator=()

◆ property_shrink_center_last() [1/2]

◆ property_shrink_center_last() [2/2]

◆ set_baseline_position()

◆ set_center_widget()

◆ set_end_widget()

◆ set_orientation()

◆ set_shrink_center_last()

◆ set_start_widget()

Friends And Related Symbol Documentation

◆ wrap()