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use std::future::Future;
use crate::{
foundation::Key,
painting::{
DecoderCallback, ImageCache, ImageCacheStatus, ImageConfiguration, ImageErrorListener,
ImageProvider, ImageStream, ImageStreamCompleter,
},
};
pub struct FileImage {
// The file to decode into an image.
// file: File,
// The scale to place in the ImageInfo object of the image.
pub scale: f64,
}
impl FileImage {
// Converts a key into an ImageStreamCompleter, and begins fetching the image.
// load(FileImage key, DecoderCallback decode) -> ImageStreamCompleter
// Converts an ImageProvider's settings plus an ImageConfiguration to a key that describes the precise image to load.
// obtainKey(ImageConfiguration configuration) -> Future<FileImage>
// Called by resolve with the key returned by obtainKey.
// resolveStreamForKey(ImageConfiguration configuration, ImageStream stream, FileImage key, ImageErrorListener handleError) -> void
}
impl ImageProvider for FileImage {
fn create_stream(&self, configuration: ImageConfiguration) -> ImageStream {
todo!()
}
fn evict(
&self,
cache: Option<ImageCache>,
configuration: ImageConfiguration, /*= ImageConfiguration.empty*/
) -> Box<dyn Future<Output = bool>> {
todo!()
}
fn load(&self, key: Key, decode: Box<DecoderCallback>) -> ImageStreamCompleter {
todo!()
}
fn obtain_cache_status(
&self,
configuration: ImageConfiguration,
handle_error: Option<Box<ImageErrorListener>>,
) -> Box<dyn Future<Output = Option<ImageCacheStatus>>> {
todo!()
}
fn obtain_key(&self, configuration: ImageConfiguration) -> Box<dyn Future<Output = Key>> {
todo!()
}
fn resolve(&self, configuration: ImageConfiguration) -> ImageStream {
todo!()
}
fn resolve_stream_for_key(
&self,
configuration: ImageConfiguration,
stream: ImageStream,
key: Key,
handle_error: Option<Box<ImageErrorListener>>,
) {
todo!()
}
}
// impl<T: Default> Default for ImageProvider<T> {
// fn default() -> Self {
// Self(Default::default())
// }
// }