Enum polyhorn_android::assets::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.

Trait Implementations

impl Clone for ImageSource

fn clone(&self) -> ImageSource

Returns a copy of the value.

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

Performs copy-assignment from source.

impl From<Bytes> for ImageSource

fn from(bytes: Bytes) -> ImageSource

Performs the conversion.

impl From<ImageAsset> for ImageSource

fn from(asset: ImageAsset) -> ImageSource

Performs the conversion.

impl PartialEq<ImageSource> for ImageSource

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl StructuralPartialEq for ImageSource