Scrollable

Object Hierarchy:

[ CCode ( type_cname = "GtkScrollableInterface" , type_id = "gtk_scrollable_get_type ()" ) ]
public interface Scrollable : Object

An interface for widgets with native scrolling ability.

To implement this interface you should override the [property@Gtk.Scrollable:hadjustment] and [property@Gtk.Scrollable:vadjustment] properties.

All scrollable widgets should do the following.

When a parent widget sets the scrollable child widget’s adjustments, the widget should connect to the [signal@Gtk.Adjustment:GtkScrollable:value-changed] signal. The child widget should then populate the adjustments’ properties as soon as possible, which usually means queueing an allocation right away and populating the properties in the [vfunc@Gtk.Widget.size_allocate] implementation.
Because its preferred size is the size for a fully expanded widget, the scrollable widget must be able to cope with underallocations. This means that it must accept any value passed to its [vfunc@Gtk.Widget.size_allocate] implementation.
When the parent allocates space to the scrollable child widget, the widget must ensure the adjustments’ property values are correct and up to date, for example using [method@Gtk.Adjustment.configure].
When any of the adjustments emits the [signal@Gtk.Adjustment:GtkScrollable:value-changed] signal, the scrollable widget should scroll its contents.

All known implementing classes:

Namespace: Gtk

Package: gtk4

public abstract Adjustment hadjustment { get; set construct; }
Horizontal `GtkAdjustment` of the scrollable widget.
public abstract ScrollablePolicy hscroll_policy { get; set; }
Determines when horizontal scrolling should start.
public abstract Adjustment vadjustment { get; set construct; }
Vertical `GtkAdjustment` of the scrollable widget.
public abstract ScrollablePolicy vscroll_policy { get; set; }
Determines when vertical scrolling should start.

public abstract bool get_border (out Border border)
Returns the size of a non-scrolling border around the outside of the scrollable.
public unowned Adjustment? get_hadjustment ()
Retrieves the `GtkAdjustment` used for horizontal scrolling.
public ScrollablePolicy get_hscroll_policy ()
Gets the horizontal `GtkScrollablePolicy`.
public unowned Adjustment? get_vadjustment ()
Retrieves the `GtkAdjustment` used for vertical scrolling.
public ScrollablePolicy get_vscroll_policy ()
Gets the vertical `GtkScrollablePolicy`.
public void set_hadjustment (Adjustment? hadjustment)
Sets the horizontal adjustment of the `GtkScrollable`.
public void set_hscroll_policy (ScrollablePolicy policy)
Sets the `GtkScrollablePolicy`.
public void set_vadjustment (Adjustment? vadjustment)
Sets the vertical adjustment of the `GtkScrollable`.
public void set_vscroll_policy (ScrollablePolicy policy)
Sets the `GtkScrollablePolicy`.

All known members inherited from class GLib.Object