Interface
Gtk.Scrollable
Description [src]
interface Gtk.Scrollable : GObject.ObjectGtkScrollable is an interface for widgets with native scrolling ability.
To implement this interface you should override the
GtkScrollable:hadjustment and
GtkScrollable: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’ GtkAdjustment:lower,GtkAdjustment:upper,GtkAdjustment:step-increment,GtkAdjustment:page-incrementandGtkAdjustment:page-sizeproperties and connect to theGtkAdjustment::value-changedsignal.
- 
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 GtkAdjustment::value-changedsignal, the scrollable widget should scroll its contents.
Instance methods
gtk_scrollable_get_border
Returns the size of a non-scrolling border around the outside of the scrollable.
gtk_scrollable_get_hadjustment
Retrieves the GtkAdjustment used for horizontal scrolling.
gtk_scrollable_get_hscroll_policy
Gets the horizontal GtkScrollablePolicy.
gtk_scrollable_get_vadjustment
Retrieves the GtkAdjustment used for vertical scrolling.
gtk_scrollable_get_vscroll_policy
Gets the vertical GtkScrollablePolicy.
gtk_scrollable_set_hadjustment
Sets the horizontal adjustment of the GtkScrollable.
gtk_scrollable_set_hscroll_policy
Sets the GtkScrollablePolicy.
gtk_scrollable_set_vadjustment
Sets the vertical adjustment of the GtkScrollable.
gtk_scrollable_set_vscroll_policy
Sets the GtkScrollablePolicy.
Properties
Gtk.Scrollable:hadjustment
Horizontal GtkAdjustment of the scrollable widget.
Gtk.Scrollable:hscroll-policy
Determines when horizontal scrolling should start.
Gtk.Scrollable:vadjustment
Vertical GtkAdjustment of the scrollable widget.
Gtk.Scrollable:vscroll-policy
Determines when vertical scrolling should start.
Interface structure
struct GtkScrollableInterface {
  GTypeInterface base_iface;
  gboolean (* get_border) (
    GtkScrollable* scrollable,
    GtkBorder* border
  );
  
}Interface members
| base_iface |  | 
| No description available. | |
| get_border |  | 
| No description available. | 
Virtual methods
Gtk.Scrollable.get_border
Returns the size of a non-scrolling border around the outside of the scrollable.