Creates a new gtk.fixed_layout.FixedLayout.
Assigns the given width, height, and baseline to a widget, and computes the position and sizes of the children of the widget using the layout management policy of manager.
Retrieves a gtk.layout_child.LayoutChild instance for the gtk.layout_manager.LayoutManager, creating one if necessary.
Retrieves the request mode of manager.
Retrieves the gtk.widget.Widget using the given gtk.layout_manager.LayoutManager.
Queues a resize on the gtk.widget.Widget using manager, if any.
Measures the size of the widget using manager, for the given orientation and size.
gtk.fixed_layout.FixedLayout is a layout manager which can place child widgets at fixed positions.
Most applications should never use this layout manager; fixed positioning and sizing requires constant recalculations on where children need to be positioned and sized. Other layout managers perform this kind of work internally so that application developers don't need to do it. Specifically, widgets positioned in a fixed layout manager will need to take into account:
In addition, gtk.fixed_layout.FixedLayout does not pay attention to text direction and thus may produce unwanted results if your app is run under right-to-left languages such as Hebrew or Arabic. That is: normally GTK will order containers appropriately depending on the text direction, e.g. to put labels to the right of the thing they label when using an RTL language; gtk.fixed_layout.FixedLayout won't be able to do that for you.
Finally, fixed positioning makes it kind of annoying to add/remove UI elements, since you have to reposition all the other elements. This is a long-term maintenance problem for your application.