GtkMenu
GtkMenu — A menu widget
Functions
GtkWidget * | gtk_menu_new () |
GtkWidget * | gtk_menu_new_from_model () |
void | gtk_menu_set_screen () |
void | gtk_menu_reorder_child () |
void | gtk_menu_attach () |
void | gtk_menu_popup_for_device () |
void | gtk_menu_popup () |
void | gtk_menu_set_accel_group () |
GtkAccelGroup * | gtk_menu_get_accel_group () |
void | gtk_menu_set_accel_path () |
const gchar * | gtk_menu_get_accel_path () |
void | gtk_menu_set_title () |
const gchar * | gtk_menu_get_title () |
void | gtk_menu_set_monitor () |
gint | gtk_menu_get_monitor () |
gboolean | gtk_menu_get_tearoff_state () |
void | gtk_menu_set_reserve_toggle_size () |
gboolean | gtk_menu_get_reserve_toggle_size () |
void | gtk_menu_popdown () |
void | gtk_menu_reposition () |
GtkWidget * | gtk_menu_get_active () |
void | gtk_menu_set_active () |
void | gtk_menu_set_tearoff_state () |
void | gtk_menu_attach_to_widget () |
void | gtk_menu_detach () |
GtkWidget * | gtk_menu_get_attach_widget () |
GList * | gtk_menu_get_for_attach_widget () |
void | (*GtkMenuPositionFunc) () |
void | (*GtkMenuDetachFunc) () |
Properties
GtkAccelGroup * | accel-group | Read / Write |
gchar * | accel-path | Read / Write |
gint | active | Read / Write |
GtkWidget * | attach-widget | Read / Write |
gint | monitor | Read / Write |
gboolean | reserve-toggle-size | Read / Write |
gboolean | tearoff-state | Read / Write |
gchar * | tearoff-title | Read / Write |
Child Properties
gint | bottom-attach | Read / Write |
gint | left-attach | Read / Write |
gint | right-attach | Read / Write |
gint | top-attach | Read / Write |
Style Properties
GtkArrowPlacement | arrow-placement | Read |
gfloat | arrow-scaling | Read |
gboolean | double-arrows | Read |
gint | horizontal-offset | Read |
gint | horizontal-padding | Read |
gint | vertical-offset | Read |
gint | vertical-padding | Read |
Signals
void | move-scroll | Action |
Types and Values
struct | GtkMenu |
enum | GtkArrowPlacement |
Object Hierarchy
GObject ╰── GInitiallyUnowned ╰── GtkWidget ╰── GtkContainer ╰── GtkMenuShell ╰── GtkMenu ╰── GtkRecentChooserMenu
Implemented Interfaces
GtkMenu implements AtkImplementorIface and GtkBuildable.
Includes
#include <gtk/gtk.h>
Description
A GtkMenu is a GtkMenuShell that implements a drop down menu consisting of a list of GtkMenuItem objects which can be navigated and activated by the user to perform application functions.
A GtkMenu is most commonly dropped down by activating a GtkMenuItem in a GtkMenuBar or popped up by activating a GtkMenuItem in another GtkMenu.
A GtkMenu can also be popped up by activating a GtkComboBox. Other composite widgets such as the GtkNotebook can pop up a GtkMenu as well.
Applications can display a GtkMenu as a popup menu by calling the gtk_menu_popup()
function. The example below shows how an application can pop up a menu when the 3rd mouse button is pressed.
Connecting the popup signal handler.
Signal handler which displays a popup menu.
CSS nodes
// connect our handler which will popup the menu g_signal_connect_swapped(window,"button_press_event", G_CALLBACK(my_popup_handler), menu);
The main CSS node of GtkMenu has name menu, and there are two subnodes with name arrow, for scrolling menu arrows. These subnodes get the .top and .bottom style classes.
Functions
gtk_menu_new_from_model ()
GtkWidget *
gtk_menu_new_from_model (GMenuModel *model
);
Creates a GtkMenu and populates it with menu items and submenus according to model
.
The created menu items are connected to actions found in the GtkApplicationWindow to which the menu belongs - typically by means of being attached to a widget (see gtk_menu_attach_to_widget()
) that is contained within the GtkApplicationWindows widget hierarchy.
Actions can also be added using gtk_widget_insert_action_group()
on the menu's attach widget or on any of its parent widgets.
Parameters
model |
Returns
a new GtkMenu
Since: 3.4
gtk_menu_set_screen ()
void gtk_menu_set_screen (GtkMenu *menu
,GdkScreen *screen
);
Sets the GdkScreen on which the menu will be displayed.
Parameters
Since: 2.2
gtk_menu_reorder_child ()
void gtk_menu_reorder_child (GtkMenu *menu
,GtkWidget *child
,gint position
);
Moves child
to a new position
in the list of menu
children.
Parameters
menu | a GtkMenu | |
child | the GtkMenuItem to move | |
position | the new position to place |
gtk_menu_attach ()
void gtk_menu_attach (GtkMenu *menu
,GtkWidget *child
,guint left_attach
,guint right_attach
,guint top_attach
,guint bottom_attach
);
Adds a new GtkMenuItem to a (table) menu. The number of “cells” that an item will occupy is specified by left_attach
, right_attach
, top_attach
and bottom_attach
. These each represent the leftmost, rightmost, uppermost and lower column and row numbers of the table. (Columns and rows are indexed from zero).
Note that this function is not related to gtk_menu_detach()
.
Parameters
menu | a GtkMenu | |
child | ||
left_attach | The column number to attach the left side of the item to | |
right_attach | The column number to attach the right side of the item to | |
top_attach | The row number to attach the top of the item to | |
bottom_attach | The row number to attach the bottom of the item to |
Since: 2.4
gtk_menu_popup_for_device ()
void gtk_menu_popup_for_device (GtkMenu *menu
,GdkDevice *device
,GtkWidget *parent_menu_shell
,GtkWidget *parent_menu_item
,GtkMenuPositionFunc func
,gpointer data
,GDestroyNotify destroy
,guint button
,guint32 activate_time
);
Displays a menu and makes it available for selection.
Applications can use this function to display context-sensitive menus, and will typically supply NULL
for the parent_menu_shell
, parent_menu_item
, func
, data
and destroy
parameters. The default menu positioning function will position the menu at the current position of device
(or its corresponding pointer).
The button
parameter should be the mouse button pressed to initiate the menu popup. If the menu popup was initiated by something other than a mouse button press, such as a mouse button release or a keypress, button
should be 0.
The activate_time
parameter is used to conflict-resolve initiation of concurrent requests for mouse/keyboard grab requests. To function properly, this needs to be the time stamp of the user event (such as a mouse click or key press) that caused the initiation of the popup. Only if no such event is available, gtk_get_current_event_time()
can be used instead.
Parameters
menu | a GtkMenu | |
device | a GdkDevice. | [allow-none] |
parent_menu_shell | the menu shell containing the triggering menu item, or | [allow-none] |
parent_menu_item | the menu item whose activation triggered the popup, or | [allow-none] |
func | a user supplied function used to position the menu, or | [allow-none] |
data | user supplied data to be passed to | [allow-none] |
destroy | destroy notify for | [allow-none] |
button | the mouse button which was pressed to initiate the event | |
activate_time | the time at which the activation event occurred |
Since: 3.0
gtk_menu_popup ()
void gtk_menu_popup (GtkMenu *menu
,GtkWidget *parent_menu_shell
,GtkWidget *parent_menu_item
,GtkMenuPositionFunc func
,gpointer data
,guint button
,guint32 activate_time
);
Displays a menu and makes it available for selection.
Applications can use this function to display context-sensitive menus, and will typically supply NULL
for the parent_menu_shell
, parent_menu_item
, func
and data
parameters. The default menu positioning function will position the menu at the current mouse cursor position.
The button
parameter should be the mouse button pressed to initiate the menu popup. If the menu popup was initiated by something other than a mouse button press, such as a mouse button release or a keypress, button
should be 0.
The activate_time
parameter is used to conflict-resolve initiation of concurrent requests for mouse/keyboard grab requests. To function properly, this needs to be the timestamp of the user event (such as a mouse click or key press) that caused the initiation of the popup. Only if no such event is available, gtk_get_current_event_time()
can be used instead.
Parameters
menu | a GtkMenu | |
parent_menu_shell | the menu shell containing the triggering menu item, or | [allow-none] |
parent_menu_item | the menu item whose activation triggered the popup, or | [allow-none] |
func | a user supplied function used to position the menu, or | [scope async][allow-none] |
data | user supplied data to be passed to | |
button | the mouse button which was pressed to initiate the event. | |
activate_time | the time at which the activation event occurred. |
gtk_menu_set_accel_group ()
void gtk_menu_set_accel_group (GtkMenu *menu
,GtkAccelGroup *accel_group
);
Set the GtkAccelGroup which holds global accelerators for the menu. This accelerator group needs to also be added to all windows that this menu is being used in with gtk_window_add_accel_group()
, in order for those windows to support all the accelerators contained in this group.
Parameters
menu | a GtkMenu | |
accel_group | the GtkAccelGroup to be associated with the menu. | [allow-none] |
gtk_menu_get_accel_group ()
GtkAccelGroup *
gtk_menu_get_accel_group (GtkMenu *menu
);
Gets the GtkAccelGroup which holds global accelerators for the menu. See gtk_menu_set_accel_group()
.
Parameters
menu | a GtkMenu |
gtk_menu_set_accel_path ()
void gtk_menu_set_accel_path (GtkMenu *menu
,const gchar *accel_path
);
Sets an accelerator path for this menu from which accelerator paths for its immediate children, its menu items, can be constructed. The main purpose of this function is to spare the programmer the inconvenience of having to call gtk_menu_item_set_accel_path()
on each menu item that should support runtime user changable accelerators. Instead, by just calling gtk_menu_set_accel_path()
on their parent, each menu item of this menu, that contains a label describing its purpose, automatically gets an accel path assigned.
For example, a menu containing menu items “New” and “Exit”, will, after gtk_menu_set_accel_path (menu, "<Gnumeric-Sheet>/File");
has been called, assign its items the accel paths: "<Gnumeric-Sheet>/File/New"
and "<Gnumeric-Sheet>/File/Exit"
.
Assigning accel paths to menu items then enables the user to change their accelerators at runtime. More details about accelerator paths and their default setups can be found at gtk_accel_map_add_entry()
.
Note that accel_path
string will be stored in a GQuark. Therefore, if you pass a static string, you can save some memory by interning it first with g_intern_static_string()
.
Parameters
menu | a valid GtkMenu | |
accel_path | a valid accelerator path. | [allow-none] |
gtk_menu_get_accel_path ()
const gchar *
gtk_menu_get_accel_path (GtkMenu *menu
);
Retrieves the accelerator path set on the menu.
Parameters
menu | a valid GtkMenu |
Returns
the accelerator path set on the menu.
Since: 2.14
gtk_menu_set_title ()
void gtk_menu_set_title (GtkMenu *menu
,const gchar *title
);
gtk_menu_set_title
has been deprecated since version 3.10 and should not be used in newly-written code.
Sets the title string for the menu.
The title is displayed when the menu is shown as a tearoff menu. If title
is NULL
, the menu will see if it is attached to a parent menu item, and if so it will try to use the same text as that menu item’s label.
Parameters
menu | a GtkMenu | |
title | a string containing the title for the menu |
gtk_menu_get_title ()
const gchar *
gtk_menu_get_title (GtkMenu *menu
);
gtk_menu_get_title
has been deprecated since version 3.10 and should not be used in newly-written code.
Returns the title of the menu. See gtk_menu_set_title()
.
Parameters
menu | a GtkMenu |
Returns
the title of the menu, or NULL
if the menu has no title set on it. This string is owned by GTK+ and should not be modified or freed.
gtk_menu_set_monitor ()
void gtk_menu_set_monitor (GtkMenu *menu
,gint monitor_num
);
Informs GTK+ on which monitor a menu should be popped up. See gdk_screen_get_monitor_geometry()
.
This function should be called from a GtkMenuPositionFunc if the menu should not appear on the same monitor as the pointer. This information can’t be reliably inferred from the coordinates returned by a GtkMenuPositionFunc, since, for very long menus, these coordinates may extend beyond the monitor boundaries or even the screen boundaries.
Parameters
menu | a GtkMenu | |
monitor_num | the number of the monitor on which the menu should be popped up |
Since: 2.4
gtk_menu_get_monitor ()
gint
gtk_menu_get_monitor (GtkMenu *menu
);
Retrieves the number of the monitor on which to show the menu.
Parameters
menu | a GtkMenu |
Returns
the number of the monitor on which the menu should be popped up or -1, if no monitor has been set
Since: 2.14
gtk_menu_get_tearoff_state ()
gboolean
gtk_menu_get_tearoff_state (GtkMenu *menu
);
gtk_menu_get_tearoff_state
has been deprecated since version 3.10 and should not be used in newly-written code.
Returns whether the menu is torn off. See gtk_menu_set_tearoff_state()
.
Parameters
menu | a GtkMenu |
Returns
TRUE
if the menu is currently torn off.
gtk_menu_set_reserve_toggle_size ()
void gtk_menu_set_reserve_toggle_size (GtkMenu *menu
,gboolean reserve_toggle_size
);
Sets whether the menu should reserve space for drawing toggles or icons, regardless of their actual presence.
Parameters
menu | a GtkMenu | |
reserve_toggle_size | whether to reserve size for toggles |
Since: 2.18
gtk_menu_get_reserve_toggle_size ()
gboolean
gtk_menu_get_reserve_toggle_size (GtkMenu *menu
);
Returns whether the menu reserves space for toggles and icons, regardless of their actual presence.
Parameters
menu | a GtkMenu |
Returns
Whether the menu reserves toggle space
Since: 2.18
gtk_menu_popdown ()
void
gtk_menu_popdown (GtkMenu *menu
);
Removes the menu from the screen.
Parameters
menu | a GtkMenu |
gtk_menu_reposition ()
void
gtk_menu_reposition (GtkMenu *menu
);
Repositions the menu according to its position function.
Parameters
menu | a GtkMenu |
gtk_menu_get_active ()
GtkWidget *
gtk_menu_get_active (GtkMenu *menu
);
Returns the selected menu item from the menu. This is used by the GtkComboBox.
Parameters
menu | a GtkMenu |
Returns
the GtkMenuItem that was last selected in the menu. If a selection has not yet been made, the first menu item is selected.
[transfer none]
gtk_menu_set_active ()
void gtk_menu_set_active (GtkMenu *menu
,guint index
);
Selects the specified menu item within the menu. This is used by the GtkComboBox and should not be used by anyone else.
Parameters
menu | a GtkMenu | |
index | the index of the menu item to select. Index values are from 0 to n-1 |
gtk_menu_set_tearoff_state ()
void gtk_menu_set_tearoff_state (GtkMenu *menu
,gboolean torn_off
);
gtk_menu_set_tearoff_state
has been deprecated since version 3.10 and should not be used in newly-written code.
Changes the tearoff state of the menu. A menu is normally displayed as drop down menu which persists as long as the menu is active. It can also be displayed as a tearoff menu which persists until it is closed or reattached.
gtk_menu_attach_to_widget ()
void gtk_menu_attach_to_widget (GtkMenu *menu
,GtkWidget *attach_widget
,GtkMenuDetachFunc detacher
);
Attaches the menu to the widget and provides a callback function that will be invoked when the menu calls gtk_menu_detach()
during its destruction.
If the menu is attached to the widget then it will be destroyed when the widget is destroyed, as if it was a child widget. An attached menu will also move between screens correctly if the widgets moves between screens.
Parameters
menu | a GtkMenu | |
attach_widget | the GtkWidget that the menu will be attached to | |
detacher | the user supplied callback function that will be called when the menu calls | [scope async][allow-none] |
gtk_menu_detach ()
void
gtk_menu_detach (GtkMenu *menu
);
Detaches the menu from the widget to which it had been attached. This function will call the callback function, detacher
, provided when the gtk_menu_attach_to_widget()
function was called.
Parameters
menu | a GtkMenu |
gtk_menu_get_attach_widget ()
GtkWidget *
gtk_menu_get_attach_widget (GtkMenu *menu
);
Returns the GtkWidget that the menu is attached to.
Parameters
menu | a GtkMenu |
gtk_menu_get_for_attach_widget ()
GList *
gtk_menu_get_for_attach_widget (GtkWidget *widget
);
Returns a list of the menus which are attached to this widget. This list is owned by GTK+ and must not be modified.
Parameters
widget |
Returns
the list of menus attached to his widget.
[element-type GtkWidget][transfer none]
Since: 2.6
GtkMenuPositionFunc ()
void (*GtkMenuPositionFunc) (GtkMenu *menu
,gint *x
,gint *y
,gboolean *push_in
,gpointer user_data
);
A user function supplied when calling gtk_menu_popup()
which controls the positioning of the menu when it is displayed. The function sets the x
and y
parameters to the coordinates where the menu is to be drawn. To make the menu appear on a different monitor than the mouse pointer, gtk_menu_set_monitor()
must be called.
Parameters
menu | a GtkMenu. | |
x | address of the gint representing the horizontal position where the menu shall be drawn. | [inout] |
y | address of the gint representing the vertical position where the menu shall be drawn. This is an output parameter. | [inout] |
push_in | This parameter controls how menus placed outside the monitor are handled. If this is set to | [out] |
user_data | the data supplied by the user in the |
GtkMenuDetachFunc ()
void (*GtkMenuDetachFunc) (GtkWidget *attach_widget
,GtkMenu *menu
);
A user function supplied when calling gtk_menu_attach_to_widget()
which will be called when the menu is later detached from the widget.
Types and Values
struct GtkMenu
struct GtkMenu;
enum GtkArrowPlacement
Used to specify the placement of scroll arrows in scrolling menus.
Members
GTK_ARROWS_BOTH | Place one arrow on each end of the menu. | |
GTK_ARROWS_START | Place both arrows at the top of the menu. | |
GTK_ARROWS_END | Place both arrows at the bottom of the menu. |
Property Details
The “accel-group”
property
“accel-group” GtkAccelGroup *
The accel group holding accelerators for the menu.
Flags: Read / Write
Since: 2.14
The “accel-path”
property
“accel-path” gchar *
An accel path used to conveniently construct accel paths of child items.
Flags: Read / Write
Default value: NULL
Since: 2.14
The “active”
property
“active” gint
The index of the currently selected menu item, or -1 if no menu item is selected.
Flags: Read / Write
Allowed values: >= -1
Default value: -1
Since: 2.14
The “attach-widget”
property
“attach-widget” GtkWidget *
The widget the menu is attached to. Setting this property attaches the menu without a GtkMenuDetachFunc. If you need to use a detacher, use gtk_menu_attach_to_widget()
directly.
Flags: Read / Write
Since: 2.14
The “monitor”
property
“monitor” gint
The monitor the menu will be popped up on.
Flags: Read / Write
Allowed values: >= -1
Default value: -1
Since: 2.14
The “reserve-toggle-size”
property
“reserve-toggle-size” gboolean
A boolean that indicates whether the menu reserves space for toggles and icons, regardless of their actual presence.
This property should only be changed from its default value for special-purposes such as tabular menus. Regular menus that are connected to a menu bar or context menus should reserve toggle space for consistency.
Flags: Read / Write
Default value: TRUE
Since: 2.18
The “tearoff-state”
property
“tearoff-state” gboolean
A boolean that indicates whether the menu is torn-off.
GtkMenu:tearoff-state
has been deprecated since version 3.10 and should not be used in newly-written code.
Flags: Read / Write
Default value: FALSE
Since: 2.6
The “tearoff-title”
property
“tearoff-title” gchar *
A title that may be displayed by the window manager when this menu is torn-off.
GtkMenu:tearoff-title
has been deprecated since version 3.10 and should not be used in newly-written code.
Flags: Read / Write
Default value: NULL
Child Property Details
The “bottom-attach”
child property
“bottom-attach” gint
The row number to attach the bottom of the child to.
Flags: Read / Write
Allowed values: >= -1
Default value: -1
The “left-attach”
child property
“left-attach” gint
The column number to attach the left side of the child to.
Flags: Read / Write
Allowed values: >= -1
Default value: -1
The “right-attach”
child property
“right-attach” gint
The column number to attach the right side of the child to.
Flags: Read / Write
Allowed values: >= -1
Default value: -1
The “top-attach”
child property
“top-attach” gint
The row number to attach the top of the child to.
Flags: Read / Write
Allowed values: >= -1
Default value: -1
Style Property Details
The “arrow-placement”
style property
“arrow-placement” GtkArrowPlacement
Indicates where scroll arrows should be placed.
GtkMenu:arrow-placement
has been deprecated since version 3.20 and should not be used in newly-written code.
the value of this style property is ignored.
Flags: Read
Default value: GTK_ARROWS_BOTH
Since: 2.16
The “arrow-scaling”
style property
“arrow-scaling” gfloat
Arbitrary constant to scale down the size of the scroll arrow.
GtkMenu:arrow-scaling
has been deprecated since version 3.20 and should not be used in newly-written code.
use the standard min-width/min-height CSS properties on the arrow node; the value of this style property is ignored.
Flags: Read
Allowed values: [0,1]
Default value: 0.7
Since: 2.16
The “double-arrows”
style property
“double-arrows” gboolean
When TRUE
, both arrows are shown when scrolling.
GtkMenu:double-arrows
has been deprecated since version 3.20 and should not be used in newly-written code.
the value of this style property is ignored.
Flags: Read
Default value: TRUE
The “horizontal-offset”
style property
“horizontal-offset” gint
When the menu is a submenu, position it this number of pixels offset horizontally.
Flags: Read
Default value: -2
The “horizontal-padding”
style property
“horizontal-padding” gint
Extra space at the left and right edges of the menu.
GtkMenu:horizontal-padding
has been deprecated since version 3.8 and should not be used in newly-written code.
use the standard padding CSS property (through objects like GtkStyleContext and GtkCssProvider); the value of this style property is ignored.
Flags: Read
Allowed values: >= 0
Default value: 0
The “vertical-offset”
style property
“vertical-offset” gint
When the menu is a submenu, position it this number of pixels offset vertically.
Flags: Read
Default value: 0
The “vertical-padding”
style property
“vertical-padding” gint
Extra space at the top and bottom of the menu.
GtkMenu:vertical-padding
has been deprecated since version 3.8 and should not be used in newly-written code.
use the standard padding CSS property (through objects like GtkStyleContext and GtkCssProvider); the value of this style property is ignored.
Flags: Read
Allowed values: >= 0
Default value: 1
Signal Details
The “move-scroll”
signal
void user_function (GtkMenu *menu, GtkScrollType scroll_type, gpointer user_data)
Parameters
menu | a GtkMenu | |
scroll_type | ||
user_data | user data set when the signal handler was connected. |
Flags: Action
© 2005–2020 The GNOME Project
Licensed under the GNU Lesser General Public License version 2.1 or later.
https://developer.gnome.org/gtk3/3.20/GtkMenu.html