Crate zng_ext_image

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Image loading and cache.

§Crate

This crate is part of the zng project.

This crate provides 1 feature flag, not enabled by default.

Enable web image source.

IMAGES: Image loading, cache and render service.
IMAGES_WINDOW: Images render window hook.
IMAGE_RENDER: Controls properties of the render window used by IMAGES.render.
ImageHash: A 256-bit hash for image entries.
ImageHasher: Hasher that computes a ImageHash.
ImageLimits: Limits for image loading and decoding.
ImageManager: Application extension that provides an image cache.
ImagePpi: Pixels-per-inch of each dimension of an image.
ImageRenderArgs: Arguments for the ImageSource::Render closure.
Img: State of an ImageVar.

ImageCacheMode: Cache mode of IMAGES.
ImageDataFormat: Format of the image bytes.
ImageDownscale: Defines how an image is downscaled after decoding.
ImageMaskMode: Defines how the A8 image mask pixels are to be derived from a source mask image.
ImageSource: The different sources of an image resource.
ImageSourceFilter: Represents a PathFilter and UriFilter.
ProxyGetResult: Result of an ImageCacheProxy get redirect.
ProxyRemoveResult: Result of an ImageCacheProxy remove redirect.

ImageCacheProxy: A custom proxy in IMAGES.
ImageRenderWindowRoot: Implemented for the root window type.
ImageRenderWindowsService: Reference to a windows manager service that IMAGES can use to render images.
render_retain

render_retain: P If the render task is kept alive after a frame is produced, this is false by default meaning the image only renders once, if set to true the image will automatically update when the render widget requests a new frame.