Struct Image 

pub struct Image { /* private fields */ }

Shows an image. Without a size it takes the image’s own size in logical pixels; with only a width (or height) it keeps the aspect ratio. With crossfade, a new image dissolves over the one before it.

use ravenrs_core::ImageData;
use ravenrs_widgets::{Image, Ui};

let pixel = ImageData::from_rgba8(1, 1, vec![200, 80, 40, 255]).expect("one pixel");
let photo = Image::new(pixel).size(160.0, 90.0).crossfade(0.2).alt("A photo");
let mut ui = Ui::new(photo, ravenrs_style::Theme::raven_dark());
ui.update();

Implementations

impl Image

pub fn new(data: ImageData) -> Self

An image of decoded RGBA pixels, Cover mode.

pub fn from_bytes(bytes: &[u8]) -> Result<Self, DecodeError>

Decodes PNG or JPEG bytes (e.g. from include_bytes!).

pub fn content_mode(self, mode: ContentMode) -> Self

How the image fills its frame (Cover by default).

pub fn corner_radius(self, radius: f32) -> Self

Corner radius in logical pixels (default 0).

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

Width in logical pixels.

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

Height in logical pixels.

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

Width and height in logical pixels.

pub fn stretch(self) -> Self

Stretches across the parent stack (height follows the aspect ratio unless set).

pub fn alt(self, text: impl Into<String>) -> Self

Describes the image for screen readers. Images without it are treated as decoration and hidden from them.

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

Opacity, 0.0 (invisible) to 1.0 (opaque, the default).

pub fn crossfade(self, seconds: f64) -> Self

When the image changes, dissolves from the old one to the new one over this many seconds. It asks for frames only while that lasts, and with reduced motion the new one simply appears. Pass a clone of the same ImageData while the picture is the same: new data counts as a new image, even with the same pixels.

Trait Implementations

impl Clone for Image

fn clone(&self) -> Image

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Image

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

Formats the value using the given formatter.

impl View for Image

fn build(&self, cx: &mut BuildCx<'_>) -> NodeId

Creates this view’s node for the current build.

fn type_name(&self) -> &'static str

The name the diagnostics panel shows this view’s cost under.