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Functions
GtkWidget * | gtk_menu_new () |
void | gtk_menu_set_screen () |
#define | gtk_menu_append() |
#define | gtk_menu_prepend() |
#define | gtk_menu_insert() |
void | gtk_menu_reorder_child () |
void | gtk_menu_attach () |
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 |
Object Hierarchy
GObject ╰── GInitiallyUnowned ╰── GtkObject ╰── GtkWidget ╰── GtkContainer ╰── GtkMenuShell ╰── GtkMenu ╰── GtkRecentChooserMenu
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 GtkOptionMenu. 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.
Example 31. Connecting the popup signal handler.
1 2 3 |
/* connect our handler which will popup the menu */ g_signal_connect_swapped (window, "button_press_event", G_CALLBACK (my_popup_handler), menu); |
Example 32. Signal handler which displays a popup menu.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 |
static gint my_popup_handler (GtkWidget *widget, GdkEvent *event) { GtkMenu *menu; GdkEventButton *event_button; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_MENU (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); /* The "widget" is the menu that was supplied when * g_signal_connect_swapped() was called. */ menu = GTK_MENU (widget); if (event->type == GDK_BUTTON_PRESS) { event_button = (GdkEventButton *) event; if (event_button->button == 3) { gtk_menu_popup (menu, NULL, NULL, NULL, NULL, event_button->button, event_button->time); return TRUE; } } return FALSE; } |
Functions
gtk_menu_set_screen ()
void gtk_menu_set_screen (GtkMenu *menu
,GdkScreen *screen
);
Sets the GdkScreen on which the menu will be displayed.
Since 2.2
gtk_menu_append()
#define gtk_menu_append(menu,child) gtk_menu_shell_append ((GtkMenuShell *)(menu),(child))
gtk_menu_append
is deprecated and should not be used in newly-written code.
Use gtk_menu_shell_append()
instead.
Adds a new GtkMenuItem to the end of the menu's item list.
gtk_menu_prepend()
#define gtk_menu_prepend(menu,child) gtk_menu_shell_prepend ((GtkMenuShell *)(menu),(child))
gtk_menu_prepend
is deprecated and should not be used in newly-written code.
Use gtk_menu_shell_prepend()
instead.
Adds a new GtkMenuItem to the beginning of the menu's item list.
gtk_menu_insert()
#define gtk_menu_insert(menu,child,pos) gtk_menu_shell_insert ((GtkMenuShell *)(menu),(child),(pos))
gtk_menu_insert
is deprecated and should not be used in newly-written code.
Use gtk_menu_shell_insert()
instead.
Adds a new GtkMenuItem to the menu's item list at the position
indicated by position
.
Parameters
menu |
a GtkMenu. |
|
child |
The GtkMenuItem to add. |
|
pos |
The position in the item list where |
gtk_menu_reorder_child ()
void gtk_menu_reorder_child (GtkMenu *menu
,GtkWidget *child
,gint position
);
Moves a GtkMenuItem to a new position within the GtkMenu.
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 |
a GtkMenuItem. |
|
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 ()
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 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. |
|
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] |
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.
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()
.
Gets the GtkAccelGroup which holds global accelerators for the menu.
See gtk_menu_set_accel_group()
.
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()
.
gtk_menu_get_accel_path ()
const gchar *
gtk_menu_get_accel_path (GtkMenu *menu
);
Retrieves the accelerator path set on the menu.
Since 2.14
gtk_menu_set_title ()
void gtk_menu_set_title (GtkMenu *menu
,const gchar *title
);
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.
gtk_menu_get_title ()
const gchar *
gtk_menu_get_title (GtkMenu *menu
);
Returns the title of the menu. See gtk_menu_set_title()
.
Returns
the title of the menu, or NULL
if the menu has no
title set on it. This string is owned by the widget 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.
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
);
Returns whether the menu is torn off. See
gtk_menu_set_tearoff_state()
.
gtk_menu_set_reserve_toggle_size ()
void gtk_menu_set_reserve_toggle_size (GtkMenu *menu
,gboolean reserve_toggle_size
);
gtk_menu_set_reserve_toggle_size
is deprecated and should not be used in newly-written code.
Sets whether the menu should reserve space for drawing toggles or icons, regardless of their actual presence.
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.
Since 2.18
gtk_menu_reposition ()
void
gtk_menu_reposition (GtkMenu *menu
);
Repositions the menu according to its position function.
gtk_menu_get_active ()
GtkWidget *
gtk_menu_get_active (GtkMenu *menu
);
Returns the selected menu item from the menu. This is used by the GtkOptionMenu.
Returns the selected menu item from the menu. This is used by the GtkOptionMenu.
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 GtkOptionMenu 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
);
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.
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 |
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.
gtk_menu_get_attach_widget ()
GtkWidget *
gtk_menu_get_attach_widget (GtkMenu *menu
);
Returns the GtkWidget that the menu is attached to.
Returns the GtkWidget that the menu is attached to.
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.
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. This is an output parameter. |
|
y |
address of the gint representing the vertical position where the menu shall be drawn. This is an output parameter. |
|
push_in |
This parameter controls how menus placed outside the monitor are handled.
If this is set to |
|
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;
The GtkMenu struct contains private data only, and should be accessed using the functions below.
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.
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.
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.
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.
Flags: Read
Allowed values: [0,1]
Default value: 0.7
The “double-arrows”
style property
“double-arrows” gboolean
When scrolling, always show both arrows.
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.
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.
Flags: Read
Allowed values: >= 0
Default value: 1
Signal Details
The “move-scroll”
signal
void user_function (GtkMenu *menu, GtkScrollType arg1, gpointer user_data)
Parameters
menu |
the object which received the signal. |
|
user_data |
user data set when the signal handler was connected. |
Flags: Action