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Gtk::AccelGroup Class Reference

A Gtk::AccelGroup represents a group of keyboard accelerators, typically attached to a toplevel Gtk::Window (with Gtk::Window::add_accel_group()). More...

Inheritance diagram for Gtk::AccelGroup:

Inheritance graph
[legend]
List of all members.

Public Methods

virtual ~AccelGroup ()
GtkAccelGroup* gobj ()
const GtkAccelGroup* gobj () const
GtkAccelGroup* gobj_copy ()
void lock ()
 Locks the given accelerator group.

void unlock ()
 Undoes the last call to lock() on this accel_group .

bool disconnect_key (guint accel_key, Gdk::ModifierType accel_mods)
 Removes an accelerator previously installed through connect().

Glib::SignalProxy3< void,
guint, GdkModifierType, GClosure* > 
signal_accel_changed ()

Static Public Methods

Glib::RefPtr<AccelGroup> create ()
bool valid (guint keyval, Gdk::ModifierType modifiers)
 Determines whether a given keyval and modifier mask constitute a valid keyboard accelerator.

void parse (const Glib::ustring& accelerator, guint& accelerator_key, Gdk::ModifierType& accelerator_mods)
 Parse the accelerator string.

Glib::ustring name (guint accelerator_key, Gdk::ModifierType accelerator_mods)
 Converts an accelerator keyval and modifier mask into a string parseable by parse().

void set_default_mod_mask (Gdk::ModifierType default_mod_mask)
 Sets the modifiers that will be considered significant for keyboard accelerators.

Gdk::ModifierType get_default_mod_mask ()
 See set_default_mod_mask().

bool activate (Gtk::Object& object, guint accel_key, Gdk::ModifierType accel_mods)
 Finds the first accelerator in any Gtk::AccelGroup attached to object that matches accel_key and accel_mods , and activates that accelerator.


Protected Methods

 AccelGroup ()
virtual void on_accel_changed (guint keyval, GdkModifierType modifier, GClosure* accel_closure)

Related Functions

(Note that these are not member functions.)

Glib::RefPtr<Gtk::AccelGroup> wrap (GtkAccelGroup* object, bool take_copy=false)

Detailed Description

A Gtk::AccelGroup represents a group of keyboard accelerators, typically attached to a toplevel Gtk::Window (with Gtk::Window::add_accel_group()).

Usually you won't need to create a Gtk::AccelGroup directly; instead, gtkmm automatically sets up the accelerators for your menus. Note that accelerators are different from mnemonics. Accelerators are shortcuts for activating a menu item; they appear alongside the menu item for which they're a shortcut. For example "Ctrl+Q" might appear alongside the "Quit" menu item. Mnemonics are shortcuts for GUI elements such as text entries or buttons; they appear as underlined characters. See the Gtk::Label constructor. Menu items can have both accelerators and mnemonics, of course.

You can use Gtk::Window::get_accel_group() to get an accel group for that window, then use it with other widgets too.


Constructor & Destructor Documentation

virtual Gtk::AccelGroup::~AccelGroup (   [virtual]
 

Gtk::AccelGroup::AccelGroup (   [protected]
 


Member Function Documentation

bool Gtk::AccelGroup::activate ( Gtk::Object   object,
guint    accel_key,
Gdk::ModifierType    accel_mods
[static]
 

Finds the first accelerator in any Gtk::AccelGroup attached to object that matches accel_key and accel_mods , and activates that accelerator.

If an accelerator was activated and handled this keypress, true is returned.

Parameters:
object The G::Object, usually a Gtk::Window, on which to activate the accelerator.
accel_key Accelerator keyval from a key event.
accel_mods Keyboard state mask from a key event.
Returns:
true if the accelerator was handled, false otherwise.

Glib::RefPtr<AccelGroup> Gtk::AccelGroup::create (   [static]
 

bool Gtk::AccelGroup::disconnect_key ( guint    accel_key,
Gdk::ModifierType    accel_mods
 

Removes an accelerator previously installed through connect().

Parameters:
accel_key Key value of the accelerator.
accel_mods Modifier combination of the accelerator.
Returns:
true if there was an accelerator which could be removed, false otherwise.

Gdk::ModifierType Gtk::AccelGroup::get_default_mod_mask (   [static]
 

See set_default_mod_mask().

const GtkAccelGroup* Gtk::AccelGroup::gobj (   const [inline]
 

Reimplemented from Glib::ObjectBase.

GtkAccelGroup* Gtk::AccelGroup::gobj (   [inline]
 

Reimplemented from Glib::ObjectBase.

GtkAccelGroup* Gtk::AccelGroup::gobj_copy (  
 

void Gtk::AccelGroup::lock (  
 

Locks the given accelerator group.

Locking an acelerator group prevents the accelerators contained within it to be changed during runtime. Refer to gtk_accel_map_change_entry() about runtime accelerator changes.

If called more than once, accel_group remains locked until unlock() has been called an equivalent number of times.

Glib::ustring Gtk::AccelGroup::name ( guint    accelerator_key,
Gdk::ModifierType    accelerator_mods
[static]
 

Converts an accelerator keyval and modifier mask into a string parseable by parse().

For example, if you pass in 'q' and Gdk::CONTROL_MASK, it returns "<Control>q".

virtual void Gtk::AccelGroup::on_accel_changed ( guint    keyval,
GdkModifierType    modifier,
GClosure*    accel_closure
[protected, virtual]
 

void Gtk::AccelGroup::parse ( const Glib::ustring   accelerator,
guint&    accelerator_key,
Gdk::ModifierType   accelerator_mods
[static]
 

Parse the accelerator string.

Parameters:
accelerator See the Gtk::AccelKey constructor for the format.
accelerator_key Output argument
accelerator_mods Output argument

void Gtk::AccelGroup::set_default_mod_mask ( Gdk::ModifierType    default_mod_mask [static]
 

Sets the modifiers that will be considered significant for keyboard accelerators.

The default mod mask is Gdk::CONTROL_MASK | Gdk::SHIFT_MASK | Gdk::MOD1_MASK, that is, Control, Shift, and Alt. Other modifiers will ignored by default. You must include at least the three default modifiers in any value you pass to this function.

The default mod mask should be changed on application startup, before using any accelerator groups.

Glib::SignalProxy3<void,guint,GdkModifierType,GClosure*> Gtk::AccelGroup::signal_accel_changed (  
 

Prototype:
void accel_changed(guint keyval, GdkModifierType modifier, GClosure* accel_closure)

void Gtk::AccelGroup::unlock (  
 

Undoes the last call to lock() on this accel_group .

bool Gtk::AccelGroup::valid ( guint    keyval,
Gdk::ModifierType    modifiers
[static]
 

Determines whether a given keyval and modifier mask constitute a valid keyboard accelerator.

For example, the 'a' keyval plus Gdk::CONTROL_MASK is valid - this is a "Ctrl+a" accelerator. But you can't, for instance, use the GDK_Control_L keyval as an accelerator.


Friends And Related Function Documentation

Glib::RefPtr<Gtk::AccelGroup> wrap ( GtkAccelGroup*    object,
bool    take_copy = false
[related]
 


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