Returns the size of a non-scrolling border around the outside of the scrollable.
Retrieves the GtkAdjustment used for horizontal scrolling.
Gets the horizontal GtkScrollablePolicy.
Get the main Gtk struct
the main Gtk struct as a void*
Retrieves the GtkAdjustment used for vertical scrolling.
Gets the vertical GtkScrollablePolicy.
Sets the horizontal adjustment of the GtkScrollable.
Sets the GtkScrollablePolicy.
Sets the vertical adjustment of the GtkScrollable.
Sets the GtkScrollablePolicy.
GtkScrollable is 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.
Creating a scrollable widget
All scrollable widgets should do the following.
- When a parent widget sets the scrollable child widget’s adjustments, the widget should populate the adjustments’ [property@Gtk.Adjustment:lower], [property@Gtk.Adjustment:upper], [property@Gtk.Adjustment:step-increment], [property@Gtk.Adjustment:page-increment] and [property@Gtk.Adjustment:page-size] properties and connect to the [signal@Gtk.Adjustment::value-changed] signal.
- 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 GtkWidgetClass.size_allocate() function.
- When the parent allocates space to the scrollable child widget, the widget should update the adjustments’ properties with new values.
- When any of the adjustments emits the [signal@Gtk.Adjustment::value-changed] signal, the scrollable widget should scroll its contents.