ScrollableT

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 connect to the [signal@Gtk.Adjustment::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::value-changed] signal, the scrollable widget should scroll its contents.

template ScrollableT (

TStruct

) {

GtkScrollable* getScrollableStruct(bool transferOwnership);

bool getBorder(Border border);

Adjustment getHadjustment();

GtkScrollablePolicy getHscrollPolicy();

Adjustment getVadjustment();

GtkScrollablePolicy getVscrollPolicy();

void setHadjustment(Adjustment hadjustment);

void setHscrollPolicy(GtkScrollablePolicy policy);

void setVadjustment(Adjustment vadjustment);

void setVscrollPolicy(GtkScrollablePolicy policy);

}

Members

Functions

getBorder bool getBorder(Border border): Returns the size of a non-scrolling border around the outside of the scrollable.
getHadjustment Adjustment getHadjustment(): Retrieves the GtkAdjustment used for horizontal scrolling.
getHscrollPolicy GtkScrollablePolicy getHscrollPolicy(): Gets the horizontal GtkScrollablePolicy.
getScrollableStruct GtkScrollable* getScrollableStruct(bool transferOwnership): Get the main Gtk struct
getVadjustment Adjustment getVadjustment(): Retrieves the GtkAdjustment used for vertical scrolling.
getVscrollPolicy GtkScrollablePolicy getVscrollPolicy(): Gets the vertical GtkScrollablePolicy.
setHadjustment void setHadjustment(Adjustment hadjustment): Sets the horizontal adjustment of the GtkScrollable.
setHscrollPolicy void setHscrollPolicy(GtkScrollablePolicy policy): Sets the GtkScrollablePolicy.
setVadjustment void setVadjustment(Adjustment vadjustment): Sets the vertical adjustment of the GtkScrollable.
setVscrollPolicy void setVscrollPolicy(GtkScrollablePolicy policy): Sets the GtkScrollablePolicy.

ScrollableT

Creating a scrollable widget

Members

Functions

Meta

Source