Trait gtk::prelude::OverlayExt[−][src]

pub trait OverlayExt: 'static {
    fn add_overlay<P: IsA<Widget>>(&self, widget: &P);

    fn is_overlay_pass_through<P: IsA<Widget>>(&self, widget: &P) -> bool;

    fn reorder_overlay<P: IsA<Widget>>(&self, child: &P, index_: i32);

    fn set_overlay_pass_through<P: IsA<Widget>>(
        &self, 
        widget: &P, 
        pass_through: bool
    );

    fn child_index<T: IsA<Widget>>(&self, item: &T) -> i32;

    fn set_child_index<T: IsA<Widget>>(&self, item: &T, index: i32);
}
Expand description

Trait containing all Overlay methods.

Implementors

Overlay

Required methods

Adds widget to self.

The widget will be stacked on top of the main widget added with ContainerExt::add().

The position at which widget is placed is determined from its property::Widget::halign and property::Widget::valign properties.

widget

a Widget to be added to the container

Convenience function to get the value of the property::Overlay::pass-through child property for widget.

widget

an overlay child of Overlay

Returns

whether the widget is a pass through child.

Moves child to a new index in the list of self children. The list contains overlays in the order that these were added to self by default. See also property::Overlay::index.

A widget’s index in the self children list determines which order the children are drawn if they overlap. The first child is drawn at the bottom. It also affects the default focus chain order.

child

the overlaid Widget to move

index_

the new index for child in the list of overlay children of self, starting from 0. If negative, indicates the end of the list

Convenience function to set the value of the property::Overlay::pass-through child property for widget.

widget

an overlay child of Overlay

pass_through

whether the child should pass the input through

Implementors