GtkHeaderBar

GtkHeaderBar — A box with a centered child

Functions

Types and Values

struct GtkHeaderBar

Includes

#include <gtk/gtk.h>

Description

GtkHeaderBar is similar to a horizontal GtkBox. It allows children to be placed at the start or the end. In addition, it allows a title and subtitle to be displayed. The title will be centered with respect to the width of the box, even if the children at either side take up different amounts of space. The height of the titlebar will be set to provide sufficient space for the subtitle, even if none is currently set. If a subtitle is not needed, the space reservation can be turned off with gtk_header_bar_set_has_subtitle().

GtkHeaderBar can add typical window frame controls, such as minimize, maximize and close buttons, or the window icon.

Functions

gtk_header_bar_new ()

GtkWidget *
gtk_header_bar_new (void);

Creates a new GtkHeaderBar widget.

Returns

a new GtkHeaderBar

Since: 3.10


gtk_header_bar_set_title ()

void
gtk_header_bar_set_title (GtkHeaderBar *bar,
                          const gchar *title);

Sets the title of the GtkHeaderBar. The title should help a user identify the current view. A good title should not include the application name.

Parameters

bar

a GtkHeaderBar

 

title

a title, or NULL.

[allow-none]

Since: 3.10


gtk_header_bar_get_title ()

const gchar *
gtk_header_bar_get_title (GtkHeaderBar *bar);

Retrieves the title of the header. See gtk_header_bar_set_title().

Parameters

bar

a GtkHeaderBar

 

Returns

the title of the header, or NULL if none has been set explicitly. The returned string is owned by the widget and must not be modified or freed.

[nullable]

Since: 3.10


gtk_header_bar_set_subtitle ()

void
gtk_header_bar_set_subtitle (GtkHeaderBar *bar,
                             const gchar *subtitle);

Sets the subtitle of the GtkHeaderBar. The title should give a user an additional detail to help him identify the current view.

Note that GtkHeaderBar by default reserves room for the subtitle, even if none is currently set. If this is not desired, set the “has-subtitle” property to FALSE.

Parameters

bar

a GtkHeaderBar

 

subtitle

a subtitle, or NULL.

[allow-none]

Since: 3.10


gtk_header_bar_get_subtitle ()

const gchar *
gtk_header_bar_get_subtitle (GtkHeaderBar *bar);

Retrieves the subtitle of the header. See gtk_header_bar_set_subtitle().

Parameters

bar

a GtkHeaderBar

 

Returns

the subtitle of the header, or NULL if none has been set explicitly. The returned string is owned by the widget and must not be modified or freed.

[nullable]

Since: 3.10


gtk_header_bar_set_has_subtitle ()

void
gtk_header_bar_set_has_subtitle (GtkHeaderBar *bar,
                                 gboolean setting);

Sets whether the header bar should reserve space for a subtitle, even if none is currently set.

Parameters

bar

a GtkHeaderBar

 

setting

TRUE to reserve space for a subtitle

 

Since: 3.12


gtk_header_bar_get_has_subtitle ()

gboolean
gtk_header_bar_get_has_subtitle (GtkHeaderBar *bar);

Retrieves whether the header bar reserves space for a subtitle, regardless if one is currently set or not.

Parameters

bar

a GtkHeaderBar

 

Returns

TRUE if the header bar reserves space for a subtitle

Since: 3.12


gtk_header_bar_set_custom_title ()

void
gtk_header_bar_set_custom_title (GtkHeaderBar *bar,
                                 GtkWidget *title_widget);

Sets a custom title for the GtkHeaderBar.

The title should help a user identify the current view. This supersedes any title set by gtk_header_bar_set_title() or gtk_header_bar_set_subtitle(). To achieve the same style as the builtin title and subtitle, use the “title” and “subtitle” style classes.

You should set the custom title to NULL, for the header title label to be visible again.

Parameters

bar

a GtkHeaderBar

 

title_widget

a custom widget to use for a title.

[allow-none]

Since: 3.10


gtk_header_bar_get_custom_title ()

GtkWidget *
gtk_header_bar_get_custom_title (GtkHeaderBar *bar);

Retrieves the custom title widget of the header. See gtk_header_bar_set_custom_title().

Parameters

bar

a GtkHeaderBar

 

Returns

the custom title widget of the header, or NULL if none has been set explicitly.

[nullable][transfer none]

Since: 3.10


gtk_header_bar_pack_start ()

void
gtk_header_bar_pack_start (GtkHeaderBar *bar,
                           GtkWidget *child);

Adds child to bar , packed with reference to the start of the bar .

Parameters

bar

A GtkHeaderBar

 

child

the GtkWidget to be added to bar

 

Since: 3.10


gtk_header_bar_pack_end ()

void
gtk_header_bar_pack_end (GtkHeaderBar *bar,
                         GtkWidget *child);

Adds child to bar , packed with reference to the end of the bar .

Parameters

bar

A GtkHeaderBar

 

child

the GtkWidget to be added to bar

 

Since: 3.10


gtk_header_bar_set_show_close_button ()

void
gtk_header_bar_set_show_close_button (GtkHeaderBar *bar,
                                      gboolean setting);

Sets whether this header bar shows the standard window decorations, including close, maximize, and minimize.

Parameters

bar

a GtkHeaderBar

 

setting

TRUE to show standard window decorations

 

Since: 3.10


gtk_header_bar_get_show_close_button ()

gboolean
gtk_header_bar_get_show_close_button (GtkHeaderBar *bar);

Returns whether this header bar shows the standard window decorations.

Parameters

bar

a GtkHeaderBar

 

Returns

TRUE if the decorations are shown

Since: 3.10


gtk_header_bar_set_decoration_layout ()

void
gtk_header_bar_set_decoration_layout (GtkHeaderBar *bar,
                                      const gchar *layout);

Sets the decoration layout for this header bar, overriding the “gtk-decoration-layout” setting.

There can be valid reasons for overriding the setting, such as a header bar design that does not allow for buttons to take room on the right, or only offers room for a single close button. Split header bars are another example for overriding the setting.

The format of the string is button names, separated by commas. A colon separates the buttons that should appear on the left from those on the right. Recognized button names are minimize, maximize, close, icon (the window icon) and menu (a menu button for the fallback app menu).

For example, “menu:minimize,maximize,close” specifies a menu on the left, and minimize, maximize and close buttons on the right.

Parameters

bar

a GtkHeaderBar

 

layout

a decoration layout, or NULL to unset the layout.

[allow-none]

Since: 3.12


gtk_header_bar_get_decoration_layout ()

const gchar *
gtk_header_bar_get_decoration_layout (GtkHeaderBar *bar);

Gets the decoration layout set with gtk_header_bar_set_decoration_layout().

Parameters

bar

a GtkHeaderBar

 

Returns

the decoration layout

Since: 3.12

Types and Values

struct GtkHeaderBar

struct GtkHeaderBar {
  GtkContainer container;
};

See Also

GtkBox, GtkActionBar