Gtk.ContainerClass

Fields

Name	Type	Access	Description
add	object	r
check_resize	object	r
child_type	object	r
composite_name	object	r
forall	object	r
get_child_property	object	r
get_path_for_child	object	r
parent_class	Gtk.WidgetClass	r	The parent class.
remove	object	r
set_child_property	object	r
set_focus_child	object	r

Methods

	find_child_property (property_name)
	handle_border_width ()
	install_child_properties (pspecs)
	install_child_property (property_id, pspec)
	list_child_properties ()

Details

class Gtk.ContainerClass

Base class for containers.

find_child_property(property_name)

Parameters:property_name (str) – the name of the child property to find Returns:the GObject.ParamSpec of the child property or None if class has no child property with that name. Return type:GObject.ParamSpec or None

Finds a child property of a container class by name.

handle_border_width()

Modifies a subclass of Gtk.ContainerClass to automatically add and remove the border-width setting on Gtk.Container. This allows the subclass to ignore the border width in its size request and allocate methods. The intent is for a subclass to invoke this in its class_init function.

Gtk.ContainerClass.handle_border_width() is necessary because it would break API too badly to make this behavior the default. So subclasses must “opt in” to the parent class handling border_width for them.

install_child_properties(pspecs)

Parameters:pspecs ([GObject.ParamSpec]) – the GObject.ParamSpec array defining the new child properties

Installs child properties on a container class.

New in version 3.18.

install_child_property(property_id, pspec)

Parameters:

• property_id (int) – the id for the property
• pspec (GObject.ParamSpec) – the GObject.ParamSpec for the property

Installs a child property on a container class.

list_child_properties()

Returns:a newly allocated None-terminated array of GObject.ParamSpec. The array must be freed with GLib.free(). Return type:[GObject.ParamSpec]

Returns all child properties of a container class.