Gtk.SliceListModel

Subclasses:

None

Methods

Inherited:

GObject.Object (37), Gio.ListModel (4), Gtk.SectionModel (2)

Structs:

GObject.ObjectClass (5)

class	new (model, offset, size)
	get_model ()
	get_offset ()
	get_size ()
	set_model (model)
	set_offset (offset)
	set_size (size)

Virtual Methods

Inherited:

GObject.Object (7), Gio.ListModel (3), Gtk.SectionModel (1)

Properties

Name	Type	Flags	Short Description
item-type	GObject.GType	r
model	Gio.ListModel	r/w/en
n-items	int	r
offset	int	r/w/en
size	int	r/w/en

Signals

Inherited:

GObject.Object (1), Gio.ListModel (1), Gtk.SectionModel (1)

Fields

Inherited:

GObject.Object (1), Gio.ListModel (1), Gtk.SectionModel (1)

Class Details

class Gtk.SliceListModel(**kwargs)

Bases:

GObject.Object, Gio.ListModel, Gtk.SectionModel

Abstract:

No

Structure:

Gtk.SliceListModelClass

GtkSliceListModel is a list model that presents a slice of another model.

This is useful when implementing paging by setting the size to the number of elements per page and updating the offset whenever a different page is opened.

GtkSliceListModel passes through sections from the underlying model.

classmethod new(model, offset, size)

Parameters:

• model (Gio.ListModel or None) – The model to use

• offset (int) – the offset of the slice

• size (int) – maximum size of the slice

Returns:

A new GtkSliceListModel

Return type:

Gtk.SliceListModel

Creates a new slice model.

It presents the slice from offset to offset + size of the given model.

get_model()

Returns:

The model in use

Return type:

Gio.ListModel or None

Gets the model that is currently being used or None if none.

get_offset()

Returns:

The offset

Return type:

int

Gets the offset set via Gtk.SliceListModel.set_offset().

get_size()

Returns:

The size

Return type:

int

Gets the size set via Gtk.SliceListModel.set_size().

set_model(model)

Parameters:

model (Gio.ListModel or None) – The model to be sliced

Sets the model to show a slice of.

The model’s item type must conform to self's item type.

set_offset(offset)

Parameters:

offset (int) – the new offset to use

Sets the offset into the original model for this slice.

If the offset is too large for the sliced model, self will end up empty.

set_size(size)

Parameters:

size (int) – the maximum size

Sets the maximum size. self will never have more items than size.

It can however have fewer items if the offset is too large or the model sliced from doesn’t have enough items.

Property Details

Gtk.SliceListModel.props.item_type

Name:

item-type

Type:

GObject.GType

Default Value:

<GType GObject>

Flags:

READABLE

The type of items. See [method`Gio`.ListModel.get_item_type].

New in version 4.8.

Gtk.SliceListModel.props.model

Name:

model

Type:

Gio.ListModel

Default Value:

None

Flags:

READABLE, WRITABLE, EXPLICIT_NOTIFY

Child model to take slice from.

Gtk.SliceListModel.props.n_items

Name:

n-items

Type:

int

Default Value:

0

Flags:

READABLE

The number of items. See [method`Gio`.ListModel.get_n_items].

New in version 4.8.

Gtk.SliceListModel.props.offset

Name:

offset

Type:

int

Default Value:

0

Flags:

READABLE, WRITABLE, EXPLICIT_NOTIFY

Offset of slice.

Gtk.SliceListModel.props.size

Name:

size

Type:

int

Default Value:

10

Flags:

READABLE, WRITABLE, EXPLICIT_NOTIFY

Maximum size of slice.