use of com.bumptech.glide.request.ThumbnailRequestCoordinator in project glide by bumptech.
the class RequestBuilder method buildRequestRecursive.
private Request buildRequestRecursive(Target<TranscodeType> target, @Nullable ThumbnailRequestCoordinator parentCoordinator, TransitionOptions<?, ? super TranscodeType> transitionOptions, Priority priority, int overrideWidth, int overrideHeight) {
if (thumbnailBuilder != null) {
// Recursive case: contains a potentially recursive thumbnail request builder.
if (isThumbnailBuilt) {
throw new IllegalStateException("You cannot use a request as both the main request and a " + "thumbnail, consider using clone() on the request(s) passed to thumbnail()");
}
TransitionOptions<?, ? super TranscodeType> thumbTransitionOptions = thumbnailBuilder.transitionOptions;
if (DEFAULT_ANIMATION_OPTIONS.equals(thumbTransitionOptions)) {
thumbTransitionOptions = transitionOptions;
}
Priority thumbPriority = thumbnailBuilder.requestOptions.isPrioritySet() ? thumbnailBuilder.requestOptions.getPriority() : getThumbnailPriority(priority);
int thumbOverrideWidth = thumbnailBuilder.requestOptions.getOverrideWidth();
int thumbOverrideHeight = thumbnailBuilder.requestOptions.getOverrideHeight();
if (Util.isValidDimensions(overrideWidth, overrideHeight) && !thumbnailBuilder.requestOptions.isValidOverride()) {
thumbOverrideWidth = requestOptions.getOverrideWidth();
thumbOverrideHeight = requestOptions.getOverrideHeight();
}
ThumbnailRequestCoordinator coordinator = new ThumbnailRequestCoordinator(parentCoordinator);
Request fullRequest = obtainRequest(target, requestOptions, coordinator, transitionOptions, priority, overrideWidth, overrideHeight);
isThumbnailBuilt = true;
// Recursively generate thumbnail requests.
Request thumbRequest = thumbnailBuilder.buildRequestRecursive(target, coordinator, thumbTransitionOptions, thumbPriority, thumbOverrideWidth, thumbOverrideHeight);
isThumbnailBuilt = false;
coordinator.setRequests(fullRequest, thumbRequest);
return coordinator;
} else if (thumbSizeMultiplier != null) {
// Base case: thumbnail multiplier generates a thumbnail request, but cannot recurse.
ThumbnailRequestCoordinator coordinator = new ThumbnailRequestCoordinator(parentCoordinator);
Request fullRequest = obtainRequest(target, requestOptions, coordinator, transitionOptions, priority, overrideWidth, overrideHeight);
BaseRequestOptions<?> thumbnailOptions = requestOptions.clone().sizeMultiplier(thumbSizeMultiplier);
Request thumbnailRequest = obtainRequest(target, thumbnailOptions, coordinator, transitionOptions, getThumbnailPriority(priority), overrideWidth, overrideHeight);
coordinator.setRequests(fullRequest, thumbnailRequest);
return coordinator;
} else {
// Base case: no thumbnail.
return obtainRequest(target, requestOptions, parentCoordinator, transitionOptions, priority, overrideWidth, overrideHeight);
}
}
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