The #GtkAspectFrame is useful when you want pack a widget so that it can resize but always retains the same aspect ratio. For instance, one might be drawing a small preview of a larger image. #GtkAspectFrame derives from #GtkFrame, so it can draw a label and a frame around the child. The frame will be “shrink-wrapped” to the size of the child.
Fluent builder for gtk.aspect_frame.AspectFrame
Fluent builder implementation template for gtk.aspect_frame.AspectFrame
Module for AspectFrame class