Class

GtkBox

Description [src]

class Gtk.Box : Gtk.Widget
  implements Gtk.Accessible, Gtk.Buildable, Gtk.ConstraintTarget, Gtk.Orientable {
  /* No available fields */
}

The GtkBox widget arranges child widgets into a single row or column.

An example GtkBox

Whether it is a row or column depends on the value of its GtkOrientable:orientation property. Within the other dimension, all children are allocated the same size. Of course, the GtkWidget:halign and GtkWidget:valign properties can be used on the children to influence their allocation.

Use repeated calls to gtk_box_append() to pack widgets into a GtkBox from start to end. Use gtk_box_remove() to remove widgets from the GtkBox. gtk_box_insert_child_after() can be used to add a child at a particular position.

Use gtk_box_set_homogeneous() to specify whether or not all children of the GtkBox are forced to get the same amount of space.

Use gtk_box_set_spacing() to determine how much space will be minimally placed between all children in the GtkBox. Note that spacing is added between the children.

Use gtk_box_reorder_child_after() to move a child to a different place in the box.

CSS nodes

GtkBox uses a single CSS node with name box.

Accessibility

Until GTK 4.10, GtkBox used the GTK_ACCESSIBLE_ROLE_GROUP role.

Starting from GTK 4.12, GtkBox uses the GTK_ACCESSIBLE_ROLE_GENERIC role.

Hierarchy

Ancestors

Descendants

Implements

Constructors

gtk_box_new

Creates a new GtkBox.

Instance methods

gtk_box_append

Adds child as the last child to box.

gtk_box_get_baseline_child

Gets the value set by gtk_box_set_baseline_child().

since: 4.12

gtk_box_get_baseline_position

Gets the value set by gtk_box_set_baseline_position().

gtk_box_get_homogeneous

Returns whether the box is homogeneous (all children are the same size).

gtk_box_get_spacing

Gets the value set by gtk_box_set_spacing().

gtk_box_insert_child_after

Inserts child in the position after sibling in the list of box children.

gtk_box_prepend

Adds child as the first child to box.

gtk_box_remove

Removes a child widget from box.

gtk_box_reorder_child_after

Moves child to the position after sibling in the list of box children.

gtk_box_set_baseline_child

Sets the baseline child of a box.

since: 4.12

gtk_box_set_baseline_position

Sets the baseline position of a box.

gtk_box_set_homogeneous

Sets whether or not all children of box are given equal space in the box.

gtk_box_set_spacing

Sets the number of pixels to place between children of box.

Methods inherited from GtkWidget (162)

Please see GtkWidget for a full list of methods.

Methods inherited from GObject (43)

Please see GObject for a full list of methods.

Methods inherited from GtkAccessible (19)

gtk_accessible_announce

Requests the user’s screen reader to announce the given message.

since: 4.14

gtk_accessible_get_accessible_parent

Retrieves the accessible parent for an accessible object.

since: 4.10

gtk_accessible_get_accessible_role

Retrieves the accessible role of an accessible object.

gtk_accessible_get_at_context

Retrieves the accessible implementation for the given GtkAccessible.

since: 4.10

gtk_accessible_get_bounds

Queries the coordinates and dimensions of this accessible.

since: 4.10

gtk_accessible_get_first_accessible_child

Retrieves the first accessible child of an accessible object.

since: 4.10

gtk_accessible_get_next_accessible_sibling

Retrieves the next accessible sibling of an accessible object.

since: 4.10

gtk_accessible_get_platform_state

Query a platform state, such as focus.

since: 4.10

gtk_accessible_reset_property

Resets the accessible property to its default value.

gtk_accessible_reset_relation

Resets the accessible relation to its default value.

gtk_accessible_reset_state

Resets the accessible state to its default value.

gtk_accessible_set_accessible_parent

Sets the parent and sibling of an accessible object.

since: 4.10

gtk_accessible_update_next_accessible_sibling

Updates the next accessible sibling of self.

since: 4.10

gtk_accessible_update_property

Updates a list of accessible properties.

gtk_accessible_update_property_value

Updates an array of accessible properties.

gtk_accessible_update_relation

Updates a list of accessible relations.

gtk_accessible_update_relation_value

Updates an array of accessible relations.

gtk_accessible_update_state

Updates a list of accessible states. See the GtkAccessibleState documentation for the value types of accessible states.

gtk_accessible_update_state_value

Updates an array of accessible states.

Methods inherited from GtkBuildable (1)

gtk_buildable_get_buildable_id

Gets the ID of the buildable object.

Methods inherited from GtkOrientable (2)

gtk_orientable_get_orientation

Retrieves the orientation of the orientable.

gtk_orientable_set_orientation

Sets the orientation of the orientable.

Properties

Gtk.Box:baseline-child

The child that determines the baseline, in vertical orientation.

since: 4.12

Gtk.Box:baseline-position

The position of the baseline aligned widgets if extra space is available.

Gtk.Box:homogeneous

Whether the children should all be the same size.

Gtk.Box:spacing

The amount of space between children.

Properties inherited from GtkWidget (34)

Gtk.Widget:can-focus

Whether the widget or any of its descendents can accept the input focus.

Gtk.Widget:can-target

Whether the widget can receive pointer events.

Gtk.Widget:css-classes

A list of css classes applied to this widget.

Gtk.Widget:css-name

The name of this widget in the CSS tree.

Gtk.Widget:cursor

The cursor used by widget.

Gtk.Widget:focus-on-click

Whether the widget should grab focus when it is clicked with the mouse.

Gtk.Widget:focusable

Whether this widget itself will accept the input focus.

Gtk.Widget:halign

How to distribute horizontal space if widget gets extra space.

Gtk.Widget:has-default

Whether the widget is the default widget.

Gtk.Widget:has-focus

Whether the widget has the input focus.

Gtk.Widget:has-tooltip

Enables or disables the emission of the ::query-tooltip signal on widget.

Gtk.Widget:height-request

Override for height request of the widget.

Gtk.Widget:hexpand

Whether to expand horizontally.

Gtk.Widget:hexpand-set

Whether to use the hexpand property.

Gtk.Widget:layout-manager

The GtkLayoutManager instance to use to compute the preferred size of the widget, and allocate its children.

Gtk.Widget:margin-bottom

Margin on bottom side of widget.

Gtk.Widget:margin-end

Margin on end of widget, horizontally.

Gtk.Widget:margin-start

Margin on start of widget, horizontally.

Gtk.Widget:margin-top

Margin on top side of widget.

Gtk.Widget:name

The name of the widget.

Gtk.Widget:opacity

The requested opacity of the widget.

Gtk.Widget:overflow

How content outside the widget’s content area is treated.

Gtk.Widget:parent

The parent widget of this widget.

Gtk.Widget:receives-default

Whether the widget will receive the default action when it is focused.

Gtk.Widget:root

The GtkRoot widget of the widget tree containing this widget.

Gtk.Widget:scale-factor

The scale factor of the widget.

Gtk.Widget:sensitive

Whether the widget responds to input.

Gtk.Widget:tooltip-markup

Sets the text of tooltip to be the given string, which is marked up with Pango markup.

Gtk.Widget:tooltip-text

Sets the text of tooltip to be the given string.

Gtk.Widget:valign

How to distribute vertical space if widget gets extra space.

Gtk.Widget:vexpand

Whether to expand vertically.

Gtk.Widget:vexpand-set

Whether to use the vexpand property.

Gtk.Widget:visible

Whether the widget is visible.

Gtk.Widget:width-request

Override for width request of the widget.

Properties inherited from GtkAccessible (1)

GtkAccessible:accessible-role

The accessible role of the given GtkAccessible implementation.

Properties inherited from GtkOrientable (1)

GtkOrientable:orientation

The orientation of the orientable.

Signals

Signals inherited from GtkWidget (13)

GtkWidget::destroy

Signals that all holders of a reference to the widget should release the reference that they hold.

GtkWidget::direction-changed

Emitted when the text direction of a widget changes.

GtkWidget::hide

Emitted when widget is hidden.

GtkWidget::keynav-failed

Emitted if keyboard navigation fails.

GtkWidget::map

Emitted when widget is going to be mapped.

GtkWidget::mnemonic-activate

Emitted when a widget is activated via a mnemonic.

GtkWidget::move-focus

Emitted when the focus is moved.

GtkWidget::query-tooltip

Emitted when the widget’s tooltip is about to be shown.

GtkWidget::realize

Emitted when widget is associated with a GdkSurface.

GtkWidget::show

Emitted when widget is shown.

GtkWidget::state-flags-changed

Emitted when the widget state changes.

GtkWidget::unmap

Emitted when widget is going to be unmapped.

GtkWidget::unrealize

Emitted when the GdkSurface associated with widget is destroyed.

Signals inherited from GObject (1)

GObject::notify

The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.

Class structure

struct GtkBoxClass {
  GtkWidgetClass parent_class;
  
}

No description available.

Class members

parent_class: GtkWidgetClass: The parent class.