Crate zng_ext_image

Image loading and cache.

Crate

This crate is part of the zng project.

Cargo Features

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

"http"

Enable web image source.

Structs

• 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.

Enums

• 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.

Traits

• 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

Functions

• 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.

Type Aliases

• ImageVar
  Represents an Img tracked by the IMAGES cache.
• PathFilter
  Represents a ImageSource::Read path request filter.
• UriFilter
  Represents a ImageSource::Download path request filter.