class Gtk::HeaderBar
Overview
Gtk::HeaderBar
is a widget for creating custom title bars for windows.
Gtk::HeaderBar
is similar to a horizontal Gtk::CenterBox
. It allows
children to be placed at the start or the end. In addition, it allows
the window title 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.
Gtk::HeaderBar
can add typical window frame controls, such as minimize,
maximize and close buttons, or the window icon.
For these reasons, Gtk::HeaderBar
is the natural choice for use as the
custom titlebar widget of a Gtk::Window
(see Gtk::Window#titlebar=
),
as it gives features typical of titlebars while allowing the addition of
child widgets.
Gtk::HeaderBar as Gtk::Buildable
The Gtk::HeaderBar
implementation of the Gtk::Buildable
interface supports
adding children at the start or end sides by specifying “start” or “end” as
the “type” attribute of a
By default the Gtk::HeaderBar
uses a Gtk::Label
displaying the title of the
window it is contained in as the title widget, equivalent to the following
UI definition:
WARNING ⚠️ The following code is in xml ⚠️
<object class="Gtk::HeaderBar">
<property name="title-widget">
<object class="Gtk::Label">
<property name="label" translatable="yes">Label</property>
<property name="single-line-mode">True</property>
<property name="ellipsize">end</property>
<property name="width-chars">5</property>
<style>
<class name="title"/>
</style>
</object>
</property>
</object>
CSS nodes
headerbar
╰── windowhandle
╰── box
├── box.start
│ ├── windowcontrols.start
│ ╰── [other children]
├── [Title Widget]
╰── box.end
├── [other children]
╰── windowcontrols.end
A Gtk::HeaderBar
's CSS node is called headerbar
. It contains a windowhandle
subnode, which contains a box
subnode, which contains two box
subnodes at
the start and end of the header bar, as well as a center node that represents
the title.
Each of the boxes contains a windowcontrols
subnode, see
Gtk::WindowControls
for details, as well as other children.
Accessibility
Gtk::HeaderBar
uses the %GTK_ACCESSIBLE_ROLE_GROUP role.
Included Modules
Defined in:
lib/gi-crystal/src/auto/gtk-4.0/header_bar.crConstructors
-
.new : self
Creates a new
Gtk::HeaderBar
widget. - .new(*, accessible_role : Gtk::AccessibleRole | Nil = nil, can_focus : Bool | Nil = nil, can_target : Bool | Nil = nil, css_classes : Enumerable(String) | Nil = nil, css_name : String | Nil = nil, cursor : Gdk::Cursor | Nil = nil, decoration_layout : String | Nil = nil, focus_on_click : Bool | Nil = nil, focusable : Bool | Nil = nil, halign : Gtk::Align | Nil = nil, has_default : Bool | Nil = nil, has_focus : Bool | Nil = nil, has_tooltip : Bool | Nil = nil, height_request : Int32 | Nil = nil, hexpand : Bool | Nil = nil, hexpand_set : Bool | Nil = nil, layout_manager : Gtk::LayoutManager | Nil = nil, margin_bottom : Int32 | Nil = nil, margin_end : Int32 | Nil = nil, margin_start : Int32 | Nil = nil, margin_top : Int32 | Nil = nil, name : String | Nil = nil, opacity : Float64 | Nil = nil, overflow : Gtk::Overflow | Nil = nil, parent : Gtk::Widget | Nil = nil, receives_default : Bool | Nil = nil, root : Gtk::Root | Nil = nil, scale_factor : Int32 | Nil = nil, sensitive : Bool | Nil = nil, show_title_buttons : Bool | Nil = nil, title_widget : Gtk::Widget | Nil = nil, tooltip_markup : String | Nil = nil, tooltip_text : String | Nil = nil, valign : Gtk::Align | Nil = nil, vexpand : Bool | Nil = nil, vexpand_set : Bool | Nil = nil, visible : Bool | Nil = nil, width_request : Int32 | Nil = nil)
Class Method Summary
-
.g_type : UInt64
Returns the type id (GType) registered in GLib type system.
Instance Method Summary
-
#==(other : self)
Returns
true
if this reference is the same as other. -
#decoration_layout : String | Nil
Gets the decoration layout of the
Gtk::HeaderBar
. - #decoration_layout=(value : String) : String
-
#decoration_layout=(value : Nil) : Nil
Set
#decoration_layout
property to nil. -
#decoration_layout=(layout : String | Nil) : Nil
Sets the decoration layout for this header bar.
-
#decoration_layout? : String | Nil
Same as
#decoration_layout
, but can return nil. -
#hash(hasher)
See
Object#hash(hasher)
-
#pack_end(child : Gtk::Widget) : Nil
Adds child to bar, packed with reference to the end of the bar.
-
#pack_start(child : Gtk::Widget) : Nil
Adds child to bar, packed with reference to the start of the bar.
-
#remove(child : Gtk::Widget) : Nil
Removes a child from the
Gtk::HeaderBar
. -
#show_title_buttons : Bool
Returns whether this header bar shows the standard window title buttons.
-
#show_title_buttons=(setting : Bool) : Nil
Sets whether this header bar shows the standard window title buttons.
- #show_title_buttons? : Bool
-
#title_widget : Gtk::Widget | Nil
Retrieves the title widget of the header.
-
#title_widget=(title_widget : Gtk::Widget | Nil) : Nil
Sets the title for the
Gtk::HeaderBar
.
Instance methods inherited from module Gtk::ConstraintTarget
to_unsafe
to_unsafe
Constructor methods inherited from module Gtk::ConstraintTarget
cast(obj : GObject::Object) : self
cast
Class methods inherited from module Gtk::ConstraintTarget
cast?(obj : GObject::Object) : self | Nil
cast?,
g_type : UInt64
g_type
Instance methods inherited from module Gtk::Buildable
buildable_id : String | Nil
buildable_id,
to_unsafe
to_unsafe
Constructor methods inherited from module Gtk::Buildable
cast(obj : GObject::Object) : self
cast
Class methods inherited from module Gtk::Buildable
cast?(obj : GObject::Object) : self | Nil
cast?,
g_type : UInt64
g_type
Instance methods inherited from module Gtk::Accessible
accessible_role : Gtk::AccessibleRole
accessible_role,
accessible_role=(value : Gtk::AccessibleRole) : Gtk::AccessibleRole
accessible_role=,
reset_property(property : Gtk::AccessibleProperty) : Nil
reset_property,
reset_relation(relation : Gtk::AccessibleRelation) : Nil
reset_relation,
reset_state(state : Gtk::AccessibleState) : Nil
reset_state,
to_unsafe
to_unsafe,
update_property(properties : Enumerable(Gtk::AccessibleProperty), values : Enumerable(_)) : Nil
update_property,
update_relation(relations : Enumerable(Gtk::AccessibleRelation), values : Enumerable(_)) : Nil
update_relation,
update_state(states : Enumerable(Gtk::AccessibleState), values : Enumerable(_)) : Nil
update_state
Constructor methods inherited from module Gtk::Accessible
cast(obj : GObject::Object) : self
cast
Class methods inherited from module Gtk::Accessible
cast?(obj : GObject::Object) : self | Nil
cast?,
g_type : UInt64
g_type
Instance methods inherited from class Gtk::Widget
==(other : self)
==,
action_set_enabled(action_name : String, enabled : Bool) : Nil
action_set_enabled,
activate : Bool
activate,
activate_action(name : String, args : _ | Nil) : Bool
activate_action,
activate_default : Nil
activate_default,
add_controller(controller : Gtk::EventController) : Nil
add_controller,
add_css_class(css_class : String) : Nil
add_css_class,
add_mnemonic_label(label : Gtk::Widget) : Nil
add_mnemonic_label,
add_tick_callback(callback : Gtk::TickCallback) : UInt32
add_tick_callback,
allocate(width : Int32, height : Int32, baseline : Int32, transform : Gsk::Transform | Nil) : Nil
allocate,
allocated_baseline : Int32
allocated_baseline,
allocated_height : Int32
allocated_height,
allocated_width : Int32
allocated_width,
allocation : Gdk::Rectangle
allocation,
ancestor(widget_type : UInt64) : Gtk::Widget | Nil
ancestor,
can_focus : Bool
can_focus,
can_focus=(can_focus : Bool) : Nil
can_focus=,
can_focus? : Bool
can_focus?,
can_target : Bool
can_target,
can_target=(can_target : Bool) : Nil
can_target=,
can_target? : Bool
can_target?,
child_focus(direction : Gtk::DirectionType) : Bool
child_focus,
child_visible : Bool
child_visible,
child_visible=(child_visible : Bool) : Nil
child_visible=,
children : Iterator(Widget)
children,
clipboard : Gdk::Clipboard
clipboard,
compute_bounds(target : Gtk::Widget) : Graphene::Rect
compute_bounds,
compute_expand(orientation : Gtk::Orientation) : Bool
compute_expand,
compute_point(target : Gtk::Widget, point : Graphene::Point) : Graphene::Point
compute_point,
compute_transform(target : Gtk::Widget) : Graphene::Matrix
compute_transform,
contains(x : Float64, y : Float64) : Bool
contains,
create_pango_context : Pango::Context
create_pango_context,
create_pango_layout(text : String | Nil) : Pango::Layout
create_pango_layout,
css_classes : Enumerable(String)
css_classes,
css_classes=(classes : Enumerable(String)) : Nil
css_classes=,
css_name : String
css_name,
css_name=(value : String) : Stringcss_name=(value : Nil) : Nil css_name=, css_name? : String | Nil css_name?, cursor : Gdk::Cursor | Nil cursor, cursor=(cursor : Gdk::Cursor | Nil) : Nil cursor=, cursor_from_name=(name : String | Nil) : Nil cursor_from_name=, destroy_signal destroy_signal, direction : Gtk::TextDirection direction, direction=(dir : Gtk::TextDirection) : Nil direction=, direction_changed_signal direction_changed_signal, display : Gdk::Display display, drag_check_threshold(start_x : Int32, start_y : Int32, current_x : Int32, current_y : Int32) : Bool drag_check_threshold, error_bell : Nil error_bell, first_child : Gtk::Widget | Nil first_child, focus_child : Gtk::Widget | Nil focus_child, focus_child=(child : Gtk::Widget | Nil) : Nil focus_child=, focus_on_click : Bool focus_on_click, focus_on_click=(focus_on_click : Bool) : Nil focus_on_click=, focus_on_click? : Bool focus_on_click?, focusable : Bool focusable, focusable=(focusable : Bool) : Nil focusable=, focusable? : Bool focusable?, font_map : Pango::FontMap | Nil font_map, font_map=(font_map : Pango::FontMap | Nil) : Nil font_map=, font_options : Cairo::FontOptions | Nil font_options, font_options=(options : Cairo::FontOptions | Nil) : Nil font_options=, frame_clock : Gdk::FrameClock | Nil frame_clock, grab_focus : Bool grab_focus, halign : Gtk::Align halign, halign=(align : Gtk::Align) : Nil halign=, has_css_class(css_class : String) : Bool has_css_class, has_default : Bool has_default, has_default? : Bool has_default?, has_focus : Bool has_focus, has_focus? : Bool has_focus?, has_tooltip : Bool has_tooltip, has_tooltip=(has_tooltip : Bool) : Nil has_tooltip=, has_tooltip? : Bool has_tooltip?, has_visible_focus : Bool has_visible_focus, hash(hasher) hash, height : Int32 height, height_request : Int32 height_request, height_request=(value : Int32) : Int32 height_request=, hexpand : Bool hexpand, hexpand=(expand : Bool) : Nil hexpand=, hexpand? : Bool hexpand?, hexpand_set : Bool hexpand_set, hexpand_set=(set : Bool) : Nil hexpand_set=, hexpand_set? : Bool hexpand_set?, hide : Nil hide, hide_signal hide_signal, in_destruction : Bool in_destruction, init_template : Nil init_template, insert_action_group(name : String, group : Gio::ActionGroup | Nil) : Nil insert_action_group, insert_after(parent : Gtk::Widget, previous_sibling : Gtk::Widget | Nil) : Nil insert_after, insert_before(parent : Gtk::Widget, next_sibling : Gtk::Widget | Nil) : Nil insert_before, is_ancestor(ancestor : Gtk::Widget) : Bool is_ancestor, is_drawable : Bool is_drawable, is_focus : Bool is_focus, is_sensitive : Bool is_sensitive, is_visible : Bool is_visible, keynav_failed(direction : Gtk::DirectionType) : Bool keynav_failed, keynav_failed_signal keynav_failed_signal, last_child : Gtk::Widget | Nil last_child, layout_manager : Gtk::LayoutManager | Nil layout_manager, layout_manager=(layout_manager : Gtk::LayoutManager | Nil) : Nil layout_manager=, list_mnemonic_labels : GLib::List list_mnemonic_labels, map : Nil map, map_signal map_signal, mapped : Bool mapped, margin_bottom : Int32 margin_bottom, margin_bottom=(margin : Int32) : Nil margin_bottom=, margin_end : Int32 margin_end, margin_end=(margin : Int32) : Nil margin_end=, margin_start : Int32 margin_start, margin_start=(margin : Int32) : Nil margin_start=, margin_top : Int32 margin_top, margin_top=(margin : Int32) : Nil margin_top=, measure(orientation : Gtk::Orientation, for_size : Int32) : Nil measure, mnemonic_activate(group_cycling : Bool) : Bool mnemonic_activate, mnemonic_activate_signal mnemonic_activate_signal, move_focus_signal move_focus_signal, name : String name, name=(name : String) : Nil
name=(value : Nil) : Nil name=, name? : String | Nil name?, native : Gtk::Native | Nil native, next_sibling : Gtk::Widget | Nil next_sibling, observe_children : Gio::ListModel observe_children, observe_controllers : Gio::ListModel observe_controllers, opacity : Float64 opacity, opacity=(opacity : Float64) : Nil opacity=, overflow : Gtk::Overflow overflow, overflow=(overflow : Gtk::Overflow) : Nil overflow=, pango_context : Pango::Context pango_context, parent : Gtk::Widget | Nil parent, parent=(parent : Gtk::Widget) : Nil parent=, pick(x : Float64, y : Float64, flags : Gtk::PickFlags) : Gtk::Widget | Nil pick, preferred_size : Gtk::Requisition preferred_size, prev_sibling : Gtk::Widget | Nil prev_sibling, primary_clipboard : Gdk::Clipboard primary_clipboard, query_tooltip_signal query_tooltip_signal, queue_allocate : Nil queue_allocate, queue_draw : Nil queue_draw, queue_resize : Nil queue_resize, realize : Nil realize, realize_signal realize_signal, realized : Bool realized, receives_default : Bool receives_default, receives_default=(receives_default : Bool) : Nil receives_default=, receives_default? : Bool receives_default?, remove_controller(controller : Gtk::EventController) : Nil remove_controller, remove_css_class(css_class : String) : Nil remove_css_class, remove_mnemonic_label(label : Gtk::Widget) : Nil remove_mnemonic_label, remove_tick_callback(id : UInt32) : Nil remove_tick_callback, request_mode : Gtk::SizeRequestMode request_mode, root : Gtk::Root | Nil root, scale_factor : Int32 scale_factor, sensitive : Bool sensitive, sensitive=(sensitive : Bool) : Nil sensitive=, sensitive? : Bool sensitive?, set_size_request(width : Int32, height : Int32) : Nil set_size_request, set_state_flags(flags : Gtk::StateFlags, clear : Bool) : Nil set_state_flags, settings : Gtk::Settings settings, should_layout : Bool should_layout, show : Nil show, show_signal show_signal, size(orientation : Gtk::Orientation) : Int32 size, size_allocate(x : Int32, y : Int32, width : Int32, height : Int32, baseline : Int32)
size_allocate(allocation : Gdk::Rectangle, baseline : Int32) : Nil size_allocate, size_request : Nil size_request, snapshot_child(child : Gtk::Widget, snapshot : Gtk::Snapshot) : Nil snapshot_child, state_flags : Gtk::StateFlags state_flags, state_flags_changed_signal state_flags_changed_signal, style_context : Gtk::StyleContext style_context, template_child(widget_type : UInt64, name : String) : GObject::Object
template_child(name : String) : GObject::Object template_child, tooltip_markup : String | Nil tooltip_markup, tooltip_markup=(value : String) : String
tooltip_markup=(value : Nil) : Nil
tooltip_markup=(markup : String | Nil) : Nil tooltip_markup=, tooltip_markup? : String | Nil tooltip_markup?, tooltip_text : String | Nil tooltip_text, tooltip_text=(value : String) : String
tooltip_text=(value : Nil) : Nil
tooltip_text=(text : String | Nil) : Nil tooltip_text=, tooltip_text? : String | Nil tooltip_text?, translate_coordinates(dest_widget : Gtk::Widget, src_x : Float64, src_y : Float64) : Bool translate_coordinates, trigger_tooltip_query : Nil trigger_tooltip_query, unmap : Nil unmap, unmap_signal unmap_signal, unparent : Nil unparent, unrealize : Nil unrealize, unrealize_signal unrealize_signal, unset_state_flags(flags : Gtk::StateFlags) : Nil unset_state_flags, valign : Gtk::Align valign, valign=(align : Gtk::Align) : Nil valign=, vexpand : Bool vexpand, vexpand=(expand : Bool) : Nil vexpand=, vexpand? : Bool vexpand?, vexpand_set : Bool vexpand_set, vexpand_set=(set : Bool) : Nil vexpand_set=, vexpand_set? : Bool vexpand_set?, visible : Bool visible, visible=(visible : Bool) : Nil visible=, visible? : Bool visible?, width : Int32 width, width_request : Int32 width_request, width_request=(value : Int32) : Int32 width_request=
Constructor methods inherited from class Gtk::Widget
newnew(*, accessible_role : Gtk::AccessibleRole | Nil = nil, can_focus : Bool | Nil = nil, can_target : Bool | Nil = nil, css_classes : Enumerable(String) | Nil = nil, css_name : String | Nil = nil, cursor : Gdk::Cursor | Nil = nil, focus_on_click : Bool | Nil = nil, focusable : Bool | Nil = nil, halign : Gtk::Align | Nil = nil, has_default : Bool | Nil = nil, has_focus : Bool | Nil = nil, has_tooltip : Bool | Nil = nil, height_request : Int32 | Nil = nil, hexpand : Bool | Nil = nil, hexpand_set : Bool | Nil = nil, layout_manager : Gtk::LayoutManager | Nil = nil, margin_bottom : Int32 | Nil = nil, margin_end : Int32 | Nil = nil, margin_start : Int32 | Nil = nil, margin_top : Int32 | Nil = nil, name : String | Nil = nil, opacity : Float64 | Nil = nil, overflow : Gtk::Overflow | Nil = nil, parent : Gtk::Widget | Nil = nil, receives_default : Bool | Nil = nil, root : Gtk::Root | Nil = nil, scale_factor : Int32 | Nil = nil, sensitive : Bool | Nil = nil, tooltip_markup : String | Nil = nil, tooltip_text : String | Nil = nil, valign : Gtk::Align | Nil = nil, vexpand : Bool | Nil = nil, vexpand_set : Bool | Nil = nil, visible : Bool | Nil = nil, width_request : Int32 | Nil = nil) new
Class methods inherited from class Gtk::Widget
default_direction : Gtk::TextDirection
default_direction,
default_direction=(dir : Gtk::TextDirection) : Nil
default_direction=,
g_type : UInt64
g_type
Instance methods inherited from module Gtk::ConstraintTarget
to_unsafe
to_unsafe
Constructor methods inherited from module Gtk::ConstraintTarget
cast(obj : GObject::Object) : self
cast
Class methods inherited from module Gtk::ConstraintTarget
cast?(obj : GObject::Object) : self | Nil
cast?,
g_type : UInt64
g_type
Instance methods inherited from module Gtk::Buildable
buildable_id : String | Nil
buildable_id,
to_unsafe
to_unsafe
Constructor methods inherited from module Gtk::Buildable
cast(obj : GObject::Object) : self
cast
Class methods inherited from module Gtk::Buildable
cast?(obj : GObject::Object) : self | Nil
cast?,
g_type : UInt64
g_type
Instance methods inherited from module Gtk::Accessible
accessible_role : Gtk::AccessibleRole
accessible_role,
accessible_role=(value : Gtk::AccessibleRole) : Gtk::AccessibleRole
accessible_role=,
reset_property(property : Gtk::AccessibleProperty) : Nil
reset_property,
reset_relation(relation : Gtk::AccessibleRelation) : Nil
reset_relation,
reset_state(state : Gtk::AccessibleState) : Nil
reset_state,
to_unsafe
to_unsafe,
update_property(properties : Enumerable(Gtk::AccessibleProperty), values : Enumerable(_)) : Nil
update_property,
update_relation(relations : Enumerable(Gtk::AccessibleRelation), values : Enumerable(_)) : Nil
update_relation,
update_state(states : Enumerable(Gtk::AccessibleState), values : Enumerable(_)) : Nil
update_state
Constructor methods inherited from module Gtk::Accessible
cast(obj : GObject::Object) : self
cast
Class methods inherited from module Gtk::Accessible
cast?(obj : GObject::Object) : self | Nil
cast?,
g_type : UInt64
g_type
Instance methods inherited from class GObject::InitiallyUnowned
==(other : self)
==,
hash(hasher)
hash
Constructor methods inherited from class GObject::InitiallyUnowned
new
new
Class methods inherited from class GObject::InitiallyUnowned
g_type : UInt64
g_type
Instance methods inherited from class GObject::Object
==(other : self)
==,
bind_property(source_property : String, target : GObject::Object, target_property : String, flags : GObject::BindingFlags) : GObject::Binding
bind_property,
bind_property_full(source_property : String, target : GObject::Object, target_property : String, flags : GObject::BindingFlags, transform_to : GObject::Closure, transform_from : GObject::Closure) : GObject::Binding
bind_property_full,
data(key : String) : Pointer(Void) | Nil
data,
finalize
finalize,
freeze_notify : Nil
freeze_notify,
getv(names : Enumerable(String), values : Enumerable(_)) : Nil
getv,
hash(hasher)
hash,
notify(property_name : String) : Nil
notify,
notify_by_pspec(pspec : GObject::ParamSpec) : Nil
notify_by_pspec,
notify_signal
notify_signal,
property(property_name : String, value : _) : Nil
property,
qdata(quark : UInt32) : Pointer(Void) | Nil
qdata,
ref_count : UInt32
ref_count,
run_dispose : Nil
run_dispose,
set_data(key : String, data : Pointer(Void) | Nil) : Nil
set_data,
set_property(property_name : String, value : _) : Nil
set_property,
steal_data(key : String) : Pointer(Void) | Nil
steal_data,
steal_qdata(quark : UInt32) : Pointer(Void) | Nil
steal_qdata,
thaw_notify : Nil
thaw_notify,
to_unsafe : Pointer(Void)
to_unsafe,
watch_closure(closure : GObject::Closure) : Nil
watch_closure
Constructor methods inherited from class GObject::Object
cast(obj : GObject::Object) : self
cast,
new(pointer : Pointer(Void), transfer : GICrystal::Transfer)new new, newv(object_type : UInt64, parameters : Enumerable(GObject::Parameter)) : self newv
Class methods inherited from class GObject::Object
cast?(obj : GObject::Object) : self | Nil
cast?,
compat_control(what : UInt64, data : Pointer(Void) | Nil) : UInt64
compat_control,
g_type : UInt64
g_type,
interface_find_property(g_iface : GObject::TypeInterface, property_name : String) : GObject::ParamSpec
interface_find_property,
interface_list_properties(g_iface : GObject::TypeInterface) : Enumerable(GObject::ParamSpec)
interface_list_properties
Macros inherited from class GObject::Object
previous_vfunc(*args)
previous_vfunc,
previous_vfunc!(*args)
previous_vfunc!,
signal(signature)
signal
Constructor Detail
Class Method Detail
Returns the type id (GType) registered in GLib type system.
Instance Method Detail
Returns true
if this reference is the same as other. Invokes same?
.
Gets the decoration layout of the Gtk::HeaderBar
.
Sets the decoration layout for this header bar.
This property overrides the [property@Gtk.Settings: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 and icon (the window icon).
For example, “icon:minimize,maximize,close” specifies a icon on the left, and minimize, maximize and close buttons on the right.
Same as #decoration_layout
, but can return nil.
Adds child to bar, packed with reference to the end of the bar.
Adds child to bar, packed with reference to the start of the bar.
Removes a child from the Gtk::HeaderBar
.
The child must have been added with
Gtk::HeaderBar#pack_start
,
Gtk::HeaderBar#pack_end
or
Gtk::HeaderBar#title_widget=
.
Returns whether this header bar shows the standard window title buttons.
Sets whether this header bar shows the standard window title buttons.
Sets the title for the Gtk::HeaderBar
.
When set to nil
, the headerbar will display the title of
the window it is contained in.
The title should help a user identify the current view. To achieve the same style as the builtin title, use the “title” style class.
You should set the title widget to nil
, for the window
title label to be visible again.