Struct ImageViewer 

pub struct ImageViewer { /* private fields */ }

A framed viewer for one image at a time.

Implementations

impl ImageViewer

pub fn new( ident: impl Into<Ident>, frames: impl IntoIterator<Item = ImageFrame>, ) -> Self

pub fn showing(self, id: impl Into<SharedString>) -> Self

Which image the caller says is showing. Without one the first is.

pub fn fit(self, fit: FitMode) -> Self

How the caller says the image is sized. The viewer draws this and reports every request to change it.

pub fn zoom_range(self, min: f32, max: f32) -> Self

How far in and out the reader may go. Both ends are the caller’s judgement: a thumbnail and a scan of a page have different answers.

pub fn height(self, height: f32) -> Self

pub fn image( self, supplier: impl Fn(&ImageFrame, &mut Window, &mut App) -> Option<AnyElement> + 'static, ) -> Self

Supplies the element to draw for an image the host already holds.

Answering None leaves a placeholder naming the source, so a host that cannot supply one has said so rather than left a gap.

pub fn on_event( self, handler: impl Fn(&ImageViewerEvent, &mut Window, &mut App) + 'static, ) -> Self

Trait Implementations

impl Debug for ImageViewer

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

Formats the value using the given formatter.

impl Disableable for ImageViewer

fn disabled(self, disabled: bool) -> Self

impl IntoElement for ImageViewer

type Element = ViewElement<ImageViewer>

The specific type of element into which the implementing type is converted. Useful for converting other types into elements automatically, like Strings

fn into_element(self) -> Self::Element

Convert self into a type that implements Element.

fn into_any_element(self) -> AnyElement

Convert self into a dynamically-typed AnyElement.

impl RenderOnce for ImageViewer

fn render(self, window: &mut Window, cx: &mut App) -> impl IntoElement

Render this component into an element tree. Note that this method takes ownership of self, as compared to Render::render() method which takes a mutable reference.