Enum ImageSource 

pub enum ImageSource {
    Placeholder(Size<f32>),
    Asset(ImageAsset),
    Bytes(Bytes),
}

An image source describes the source of an image that can be passed to e.g. the Image component. An image source can either be a placeholder, an Asset or a Bytes (3rd party crate) object.

Variants

Placeholder(Size<f32>)

If you’re loading a remote image, you might want to show a placeholder instead. The placeholder is entirely transparent (unless you give the containing component an opaque background color) but does have a size. This size is subsequently used in calculating the layout.

The benefit of this is that when the image is eventually completely loaded and the component re-renders to show that image, the rest of the layout will not change because it already anticipated the correct size of the image.

Asset(ImageAsset)

This image source is backed by a local asset that is included in a Polyhorn package.

Bytes(Bytes)

This image source is backed by an PNG-encoded buffer.

Implementations

impl ImageSource

pub fn placeholder(width: f32, height: f32) -> ImageSource

Returns a placeholder image source with the given width and height.

Trait Implementations

impl Clone for ImageSource

fn clone(&self) -> ImageSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for ImageSource

fn default() -> Self

Returns the “default value” for a type.

impl From<&'static [u8]> for ImageSource

fn from(bytes: &'static [u8]) -> Self

Converts to this type from the input type.

impl From<Bytes> for ImageSource

fn from(bytes: Bytes) -> Self

Converts to this type from the input type.

impl From<ImageAsset> for ImageSource

fn from(asset: ImageAsset) -> Self

Converts to this type from the input type.

impl PartialEq for ImageSource

fn eq(&self, other: &ImageSource) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ImageSource