embedded_layout::layout::linear

Trait SecondaryAlignment

Source 
pub trait SecondaryAlignment: Alignment {
    type First: Alignment;

    // Required method
    fn measure(prev: Size, view_size: Size) -> Size;
}
Expand description

Secondary alignment is used to align views perpendicular to the placement axis.

For example, use horizontal::Right to align views to the right in a vertical linear layout.

SecondaryAlignment should be implemented by custom Alignment types, otherwise they won’t be compatible with LinearLayout.

Required Associated Types§

Source

type First: Alignment

The secondary alignment of the first view

Required Methods§

Source

fn measure(prev: Size, view_size: Size) -> Size

Return the combined Size occupied by both Views after they are arranged.

I.e. horizontal::Left returns the maximum width, while horizontal::LeftToRight returns the sum of the two widths.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§