Gtk::SizeGroup Class Reference

#include <sizegroup.h>

Inheritance diagram for Gtk::SizeGroup:

Public Member Functions
virtual	~SizeGroup ()
GtkSizeGroup *	gobj ()
	Provides access to the underlying C GObject. More...
const GtkSizeGroup *	gobj () const
	Provides access to the underlying C GObject. More...
GtkSizeGroup *	gobj_copy ()
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
void	set_mode (SizeGroupMode mode)
SizeGroupMode	get_mode () const
void	set_ignore_hidden (bool ignore_hidden=true)
bool	get_ignore_hidden () const
void	add_widget (Widget &widget)
void	remove_widget (Widget &widget)
Glib::SListHandle< Widget * >	get_widgets ()
Glib::SListHandle< const Widget * >	get_widgets () const
Glib::PropertyProxy< SizeGroupMode >	property_mode ()
Glib::PropertyProxy_ReadOnly< SizeGroupMode >	property_mode () const
Glib::PropertyProxy< bool >	property_ignore_hidden ()
Glib::PropertyProxy_ReadOnly< bool >	property_ignore_hidden () const

Static Public Member Functions
static GType	get_type () G_GNUC_CONST
static Glib::RefPtr< SizeGroup >	create (SizeGroupMode mode)

Protected Member Functions
	SizeGroup (SizeGroupMode mode)

Related Functions
(Note that these are not member functions.)
Glib::RefPtr< Gtk::SizeGroup >	wrap (GtkSizeGroup *object, bool take_copy=false)

Detailed Description

Gtk::SizeGroup provides a mechanism for grouping a number of widgets together so they all request the same amount of space. This is typically useful when you want a column of widgets to have the same size, but you can't use a Gtk::Table widget.

In detail, the size requested for each widget in a Gtk::SizeGroup is the maximum of the sizes that would have been requested for each widget in the size group if they were not in the size group. The mode of the size group (see set_mode()) determines whether this applies to the horizontal size, the vertical size, or both sizes.

Note that size groups only affect the amount of space requested, not the size that the widgets finally receive. If you want the widgets in a GtkSizeGroup to actually be the same size, you need to pack them in such a way that they get the size they request and not more. For example, if you are packing your widgets into a table, you would not include the Gtk::FILL flag.

Widgets can be part of multiple size groups; GTK+ will compute the horizontal size of a widget from the horizontal requisition of all widgets that can be reached from the widget by a chain of size groups of type Gtk::SIZE_GROUP_HORIZONTAL or Gtk::SIZE_GROUP_BOTH, and the vertical size from the vertical requisition of all widgets
that can be reached from the widget by a chain of size groups of type Gtk::SIZE_GROUP_VERTICAL or Gtk::SIZE_GROUP_BOTH.

Definition at line 104 of file sizegroup.h.

Constructor & Destructor Documentation

~SizeGroup()

virtual Gtk::SizeGroup::~SizeGroup ( )

virtual

SizeGroup()

Gtk::SizeGroup::SizeGroup ( SizeGroupMode  mode )

explicitprotected

Member Function Documentation

add_widget()

void Gtk::SizeGroup::add_widget

(

Widget &

widget

)

Adds a widget to a Gtk::SizeGroup. In the future, the requisition of the widget will be determined as the maximum of its requisition and the requisition of the other widgets in the size group. Whether this applies horizontally, vertically, or in both directions depends on the mode of the size group. See set_mode().

When the widget is destroyed or no longer referenced elsewhere, it will be removed from the size group.

Parameters

widget

The Gtk::Widget to add.

create()

static Glib::RefPtr<SizeGroup> Gtk::SizeGroup::create ( SizeGroupMode  mode )

static

get_ignore_hidden()

bool Gtk::SizeGroup::get_ignore_hidden

(

)

const

Returns if invisible widgets are ignored when calculating the size.

Returns

true if invisible widgets are ignored.

get_mode()

SizeGroupMode Gtk::SizeGroup::get_mode

(

)

const

Gets the current mode of the size group. See set_mode().

Returns

The current mode of the size group.

get_type()

static GType Gtk::SizeGroup::get_type ( )

static

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

get_widgets() [1/2]

Glib::SListHandle<Widget*> Gtk::SizeGroup::get_widgets

(

)

Returns the list of widgets associated with size_group.

Returns

A SList of widgets. The list is owned by GTK+ and should not be modified.

get_widgets() [2/2]

Glib::SListHandle<const Widget*> Gtk::SizeGroup::get_widgets

(

)

const

Returns the list of widgets associated with size_group.

Returns

A SList of widgets. The list is owned by GTK+ and should not be modified.

gobj() [1/2]

GtkSizeGroup* Gtk::SizeGroup::gobj ( )

inline

Provides access to the underlying C GObject.

Definition at line 143 of file sizegroup.h.

gobj() [2/2]

const GtkSizeGroup* Gtk::SizeGroup::gobj ( ) const

inline

Provides access to the underlying C GObject.

Definition at line 146 of file sizegroup.h.

gobj_copy()

GtkSizeGroup* Gtk::SizeGroup::gobj_copy

(

)

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

property_ignore_hidden() [1/2]

Glib::PropertyProxy< bool > Gtk::SizeGroup::property_ignore_hidden

(

)

If TRUE, unmapped widgets are ignored when determining the size of the group.

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_ignore_hidden() [2/2]

Glib::PropertyProxy_ReadOnly< bool > Gtk::SizeGroup::property_ignore_hidden

(

)

const

If TRUE, unmapped widgets are ignored when determining the size of the group.

Returns

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

property_mode() [1/2]

Glib::PropertyProxy< SizeGroupMode > Gtk::SizeGroup::property_mode

(

)

The directions in which the size group affects the requested sizes of its component widgets.

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_mode() [2/2]

Glib::PropertyProxy_ReadOnly< SizeGroupMode > Gtk::SizeGroup::property_mode

(

)

const

The directions in which the size group affects the requested sizes of its component widgets.

Returns

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

remove_widget()

void Gtk::SizeGroup::remove_widget

(

Widget &

widget

)

Removes a widget from a Gtk::SizeGroup.

Parameters

widget

The Gtk::Widget to remove.

set_ignore_hidden()

void Gtk::SizeGroup::set_ignore_hidden

(

bool

ignore_hidden = true

)

Sets whether unmapped widgets should be ignored when calculating the size.

Parameters

ignore_hidden

Whether unmapped widgets should be ignored when calculating the size.

set_mode()

void Gtk::SizeGroup::set_mode

(

SizeGroupMode

mode

)

Sets the Gtk::SizeGroupMode of the size group. The mode of the size group determines whether the widgets in the size group should all have the same horizontal requisition (Gtk::SIZE_GROUP_MODE_HORIZONTAL) all have the same vertical requisition (Gtk::SIZE_GROUP_MODE_VERTICAL), or should all have the same requisition in both directions (Gtk::SIZE_GROUP_MODE_BOTH).

Parameters

mode	The mode to set for the size group.

Friends And Related Function Documentation

wrap()

Glib::RefPtr< Gtk::SizeGroup > wrap ( GtkSizeGroup *  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.

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

• sizegroup.h