Struct ShownPicture 

pub struct ShownPicture { /* private fields */ }

One picture a widget shows, by its address: loaded through the window’s pictures the first frame it is here, and kept while the address stays. A widget holds one and reads it from sync and draw.

Implementations

impl Shown

pub fn set(&mut self, pictures: Pictures, picture: PictureSource) -> bool

Show picture instead, through pictures; true when that is a picture other than the one shown (its bytes load on the next read).

pub fn resolve(&mut self) -> bool

Take the picture’s bytes, once they are here; true when that changed what it shows.

pub fn image(&self) -> Option<&ImageData>

The decoded picture, once its bytes are here.

pub fn failed(&self) -> bool

Whether it is a picture whose bytes are not here and cannot be: it shows the error mark.

pub fn waiting(&self) -> bool

Whether it waits for its picture: it asks for a frame until the bytes are here or fail.

Trait Implementations

impl Clone for Shown

fn clone(&self) -> Shown

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Shown

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for Shown

fn default() -> Shown

Returns the “default value” for a type.