glibmm: Gio::Menu Class Reference

A simple implementation of MenuModel . More...

#include <giomm/menu.h>

Inheritance diagram for Gio::Menu:

Public Member Functions

Menu ( Menu && src) noexcept
Menu & operator= ( Menu && src) noexcept
~Menu () noexceptoverride
GMenu* gobj ()
Provides access to the underlying C GObject. More...

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

GMenu* 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 freeze ()
Marks menu as frozen. More...

void insert_item (int position, const Glib::RefPtr < MenuItem >& item)
Inserts item into menu . More...

void prepend_item (const Glib::RefPtr < MenuItem >& item)
Prepends item to the start of menu . More...

void append_item (const Glib::RefPtr < MenuItem >& item)
Appends item to the end of menu . More...

void remove (int position)
Removes an item from the menu. More...

void remove_all ()
Removes all items in the menu. More...

void insert (int position, const Glib::ustring & label, const Glib::ustring & detailed_action)
Convenience function for inserting a normal menu item into menu . More...

void insert (int position, const Glib::ustring & label)
A insert() convenience overload. More...

void prepend (const Glib::ustring & label, const Glib::ustring & detailed_action)
Convenience function for prepending a normal menu item to the start of menu . More...

void prepend (const Glib::ustring & label)
A prepend() convenience overload. More...

void append (const Glib::ustring & label, const Glib::ustring & detailed_action)
Convenience function for appending a normal menu item to the end of menu . More...

void append (const Glib::ustring & label)
A append() convenience overload. More...

void insert_section (int position, const Glib::ustring & label, const Glib::RefPtr < MenuModel >& section)
Convenience function for inserting a section menu item into menu . More...

void insert_section (int position, const Glib::RefPtr < MenuModel >& section)
A insert_section() convenience overload. More...

void prepend_section (const Glib::ustring & label, const Glib::RefPtr < MenuModel >& section)
Convenience function for prepending a section menu item to the start of menu . More...

void prepend_section (const Glib::RefPtr < MenuModel >& section)
A prepend_section() convenience overload. More...

void append_section (const Glib::ustring & label, const Glib::RefPtr < MenuModel >& section)
Convenience function for appending a section menu item to the end of menu . More...

void append_section (const Glib::RefPtr < MenuModel >& section)
A append_section() convenience overload. More...

void insert_submenu (int position, const Glib::ustring & label, const Glib::RefPtr < MenuModel >& submenu)
Convenience function for inserting a submenu menu item into menu . More...

void prepend_submenu (const Glib::ustring & label, const Glib::RefPtr < MenuModel >& submenu)
Convenience function for prepending a submenu menu item to the start of menu . More...

void append_submenu (const Glib::ustring & label, const Glib::RefPtr < MenuModel >& submenu)
Convenience function for appending a submenu menu item to the end of menu . More...

- Public Member Functions inherited from Gio::MenuModel
MenuModel ( MenuModel && src) noexcept
MenuModel & operator= ( MenuModel && src) noexcept
~MenuModel () noexceptoverride
GMenuModel* gobj ()
Provides access to the underlying C GObject. More...

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

GMenuModel* 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::VariantBase get_item_attribute (int item_index, MenuAttribute attribute, const Glib::VariantType & expected_type)
Queries the item at position item_index in model for the attribute specified by attribute . More...

const Glib::VariantBase get_item_attribute (int item_index, MenuAttribute attribute, const Glib::VariantType & expected_type) const
Queries the item at position item_index in model for the attribute specified by attribute . More...

Glib::RefPtr < MenuModel > get_item_link (int item_index, MenuLink link)
Queries the item at position item_index in model for the link specified by link . More...

Glib::RefPtr < const MenuModel > get_item_link (int item_index, MenuLink link) const
Queries the item at position item_index in model for the link specified by link . More...

bool is_mutable () const
Queries if model is mutable. More...

int get_n_items () const
Query the number of items in model . More...

Glib::RefPtr < MenuAttributeIter > iterate_item_attributes (int item_index)
Creates a MenuAttributeIter to iterate over the attributes of the item at position item_index in model . More...

Glib::RefPtr < const MenuAttributeIter > iterate_item_attributes (int item_index) const
Creates a MenuAttributeIter to iterate over the attributes of the item at position item_index in model . More...

Glib::RefPtr < MenuLinkIter > iterate_item_links (int item_index)
Creates a MenuLinkIter to iterate over the links of the item at position item_index in model . More...

Glib::RefPtr < const MenuLinkIter > iterate_item_links (int item_index) const
Creates a MenuLinkIter to iterate over the links of the item at position item_index in model . More...

void items_changed (int position, int removed, int added)
Requests emission of the MenuModel::signal_items_changed() signal on model . More...

Glib::SignalProxy < void, int, int, int > signal_items_changed ()
- Public Member Functions inherited from Glib::Object
Object (const Object &)=delete
Object & operator= (const Object &)=delete
Object ( Object && src) noexcept
Object & operator= ( Object && src) noexcept
void* get_data (const QueryQuark & key)
void set_data (const Quark & key, void* data)
void set_data (const Quark & key, void* data, DestroyNotify notify)
void remove_data (const QueryQuark & quark)
void* steal_data (const QueryQuark & quark)
- Public Member Functions inherited from Glib::ObjectBase
ObjectBase (const ObjectBase &)=delete
ObjectBase & operator= (const ObjectBase &)=delete
void set_property_value (const Glib::ustring & property_name, const Glib::ValueBase & value)
You probably want to use a specific property_*() accessor method instead. More...

void get_property_value (const Glib::ustring & property_name, Glib::ValueBase & value) const
You probably want to use a specific property_*() accessor method instead. More...

template<class PropertyType >
void set_property (const Glib::ustring & property_name, const PropertyType& value)
You probably want to use a specific property_*() accessor method instead. More...

template<class PropertyType >
void get_property (const Glib::ustring & property_name, PropertyType& value) const
You probably want to use a specific property_*() accessor method instead. More...

void connect_property_changed (const Glib::ustring & property_name, const sigc::slot < void >& slot)
You can use the signal_changed() signal of the property proxy instead. More...

void connect_property_changed (const Glib::ustring & property_name, sigc::slot < void >&& slot)
You can use the signal_changed() signal of the property proxy instead. More...

sigc::connection connect_property_changed_with_return (const Glib::ustring & property_name, const sigc::slot < void >& slot)
You can use the signal_changed() signal of the property proxy instead. More...

sigc::connection connect_property_changed_with_return (const Glib::ustring & property_name, sigc::slot < void >&& slot)
You can use the signal_changed() signal of the property proxy instead. More...

void freeze_notify ()
Increases the freeze count on object. More...

void thaw_notify ()
Reverts the effect of a previous call to freeze_notify() . More...

virtual void reference () const
Increment the reference count for this object. More...

virtual void unreference () const
Decrement the reference count for this object. More...

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

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

GObject* gobj_copy () const
Give a ref-ed copy to someone. Use for direct struct access. More...

- Public Member Functions inherited from sigc::trackable
trackable () noexcept
trackable (const trackable &src) noexcept
trackable ( trackable &&src)
~trackable ()
void add_destroy_notify_callback (void *data, func_destroy_notify func) const
void notify_callbacks ()
trackable & operator= (const trackable &src)
trackable & operator= ( trackable &&src)
void remove_destroy_notify_callback (void *data) const

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 < Menu > create ()
- Static Public Member Functions inherited from Gio::MenuModel
static GType get_type ()
Get the GType for this class, for use with the underlying GObject type system. More...

Protected Member Functions

Menu ()
- Protected Member Functions inherited from Gio::MenuModel
MenuModel ()
- Protected Member Functions inherited from Glib::Object
Object ()
Object (const Glib::ConstructParams& construct_params)
Object (GObject* castitem)
~Object () noexceptoverride
- Protected Member Functions inherited from Glib::ObjectBase
ObjectBase ()
This default constructor is called implicitly from the constructor of user-derived classes, even if, for instance, Gtk::Button calls a different ObjectBase constructor. More...

ObjectBase (const char* custom_type_name)
A derived constructor always overrides this choice. More...

ObjectBase (const std::type_info & custom_type_info)
This constructor is a special feature to allow creation of derived types on the fly, without having to use g_object_new() manually. More...

ObjectBase ( ObjectBase && src) noexcept
ObjectBase & operator= ( ObjectBase && src) noexcept
virtual ~ObjectBase () noexcept=0
void initialize (GObject* castitem)
void initialize_move (GObject* castitem, Glib::ObjectBase * previous_wrapper)

Related Functions

(Note that these are not member functions.)

Glib::RefPtr < Gio::Menu > wrap (GMenu* object, bool take_copy=false)
A Glib::wrap() method for this object. More...

Additional Inherited Members

- Public Types inherited from Glib::Object
using DestroyNotify = void(*)(gpointer data)
- Public Types inherited from sigc::trackable
typedef internal::func_destroy_notify func_destroy_notify

Detailed Description

A simple implementation of MenuModel .

You populate a Menu by adding MenuItem instances to it.

There are some convenience methods to allow you to directly add items (avoiding MenuItem ) for the common cases. To add a regular item, use insert() . To add a section, use insert_section() . To add a submenu, use insert_submenu() .

Since glibmm 2.32:

Constructor & Destructor Documentation

Gio::Menu::Menu ( Menu && src )
noexcept
Gio::Menu::~Menu ( )
override noexcept
Gio::Menu::Menu ( )
protected

Member Function Documentation

void Gio::Menu::append ( const Glib::ustring & label ,
const Glib::ustring & detailed_action
)

Convenience function for appending a normal menu item to the end of menu .

Combine g_menu_item_new() and g_menu_insert_item() for a more flexible alternative.

Since glibmm 2.32:
Parameters
label The section label, or nullptr .
detailed_action The detailed action string, or nullptr .
void Gio::Menu::append ( const Glib::ustring & label )

A append() convenience overload.

void Gio::Menu::append_item ( const Glib::RefPtr < MenuItem >& item )

Appends item to the end of menu .

See g_menu_insert_item() for more information.

Since glibmm 2.32:
Parameters
item A MenuItem to append.
void Gio::Menu::append_section ( const Glib::ustring & label ,
const Glib::RefPtr < MenuModel >& section
)

Convenience function for appending a section menu item to the end of menu .

Combine g_menu_item_new_section() and g_menu_insert_item() for a more flexible alternative.

Since glibmm 2.32:
Parameters
label The section label, or nullptr .
section A MenuModel with the items of the section.
void Gio::Menu::append_section ( const Glib::RefPtr < MenuModel >& section )

A append_section() convenience overload.

void Gio::Menu::append_submenu ( const Glib::ustring & label ,
const Glib::RefPtr < MenuModel >& submenu
)

Convenience function for appending a submenu menu item to the end of menu .

Combine g_menu_item_new_submenu() and g_menu_insert_item() for a more flexible alternative.

Since glibmm 2.32:
Parameters
label The section label, or nullptr .
submenu A MenuModel with the items of the submenu.
static Glib::RefPtr < Menu > Gio::Menu::create ( )
static
void Gio::Menu::freeze ( )

Marks menu as frozen.

After the menu is frozen, it is an error to attempt to make any changes to it. In effect this means that the Menu API must no longer be used.

This function causes g_menu_model_is_mutable() to begin returning false , which has some positive performance implications.

Since glibmm 2.32:
static GType Gio::Menu::get_type ( )
static

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

GMenu* Gio::Menu::gobj ( )
inline

Provides access to the underlying C GObject.

const GMenu* Gio::Menu::gobj ( ) const
inline

Provides access to the underlying C GObject.

GMenu* Gio::Menu::gobj_copy ( )

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

void Gio::Menu::insert ( int position ,
const Glib::ustring & label ,
const Glib::ustring & detailed_action
)

Convenience function for inserting a normal menu item into menu .

Combine g_menu_item_new() and g_menu_insert_item() for a more flexible alternative.

Since glibmm 2.32:
Parameters
position The position at which to insert the item.
label The section label, or nullptr .
detailed_action The detailed action string, or nullptr .
void Gio::Menu::insert ( int position ,
const Glib::ustring & label
)

A insert() convenience overload.

void Gio::Menu::insert_item ( int position ,
const Glib::RefPtr < MenuItem >& item
)

Inserts item into menu .

The "insertion" is actually done by copying all of the attribute and link values of item and using them to form a new item within menu . As such, item itself is not really inserted, but rather, a menu item that is exactly the same as the one presently described by item .

This means that item is essentially useless after the insertion occurs. Any changes you make to it are ignored unless it is inserted again (at which point its updated values will be copied).

You should probably just free item once you're done.

There are many convenience functions to take care of common cases. See g_menu_insert(), g_menu_insert_section() and g_menu_insert_submenu() as well as "prepend" and "append" variants of each of these functions.

Since glibmm 2.32:
Parameters
position The position at which to insert the item.
item The MenuItem to insert.
void Gio::Menu::insert_section ( int position ,
const Glib::ustring & label ,
const Glib::RefPtr < MenuModel >& section
)

Convenience function for inserting a section menu item into menu .

Combine g_menu_item_new_section() and g_menu_insert_item() for a more flexible alternative.

Since glibmm 2.32:
Parameters
position The position at which to insert the item.
label The section label, or nullptr .
section A MenuModel with the items of the section.
void Gio::Menu::insert_section ( int position ,
const Glib::RefPtr < MenuModel >& section
)

A insert_section() convenience overload.

void Gio::Menu::insert_submenu ( int position ,
const Glib::ustring & label ,
const Glib::RefPtr < MenuModel >& submenu
)

Convenience function for inserting a submenu menu item into menu .

Combine g_menu_item_new_submenu() and g_menu_insert_item() for a more flexible alternative.

Since glibmm 2.32:
Parameters
position The position at which to insert the item.
label The section label, or nullptr .
submenu A MenuModel with the items of the submenu.
Menu & Gio::Menu::operator= ( Menu && src )
noexcept
void Gio::Menu::prepend ( const Glib::ustring & label ,
const Glib::ustring & detailed_action
)

Convenience function for prepending a normal menu item to the start of menu .

Combine g_menu_item_new() and g_menu_insert_item() for a more flexible alternative.

Since glibmm 2.32:
Parameters
label The section label, or nullptr .
detailed_action The detailed action string, or nullptr .
void Gio::Menu::prepend ( const Glib::ustring & label )

A prepend() convenience overload.

void Gio::Menu::prepend_item ( const Glib::RefPtr < MenuItem >& item )

Prepends item to the start of menu .

See g_menu_insert_item() for more information.

Since glibmm 2.32:
Parameters
item A MenuItem to prepend.
void Gio::Menu::prepend_section ( const Glib::ustring & label ,
const Glib::RefPtr < MenuModel >& section
)

Convenience function for prepending a section menu item to the start of menu .

Combine g_menu_item_new_section() and g_menu_insert_item() for a more flexible alternative.

Since glibmm 2.32:
Parameters
label The section label, or nullptr .
section A MenuModel with the items of the section.
void Gio::Menu::prepend_section ( const Glib::RefPtr < MenuModel >& section )

A prepend_section() convenience overload.

void Gio::Menu::prepend_submenu ( const Glib::ustring & label ,
const Glib::RefPtr < MenuModel >& submenu
)

Convenience function for prepending a submenu menu item to the start of menu .

Combine g_menu_item_new_submenu() and g_menu_insert_item() for a more flexible alternative.

Since glibmm 2.32:
Parameters
label The section label, or nullptr .
submenu A MenuModel with the items of the submenu.
void Gio::Menu::remove ( int position )

Removes an item from the menu.

position gives the index of the item to remove.

It is an error if position is not in range the range from 0 to one less than the number of items in the menu.

It is not possible to remove items by identity since items are added to the menu simply by copying their links and attributes (ie: identity of the item itself is not preserved).

Since glibmm 2.32:
Parameters
position The position of the item to remove.
void Gio::Menu::remove_all ( )

Removes all items in the menu.

Since glibmm 2.38:

Friends And Related Function Documentation

Glib::RefPtr < Gio::Menu > wrap ( GMenu * 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.