public ImageLoaderTask(IMemoryCache <TImageContainer> memoryCache, IDataResolverFactory dataResolverFactory, ITarget <TImageContainer, TImageView> target, TaskParameter parameters, IImageService imageService, Configuration configuration, IMainThreadDispatcher mainThreadDispatcher, bool clearCacheOnOutOfMemory)
{
_clearCacheOnOutOfMemory = clearCacheOnOutOfMemory;
MemoryCache = memoryCache;
DataResolverFactory = dataResolverFactory;
PlatformTarget = target;
ImageService = imageService;
Configuration = configuration;
MainThreadDispatcher = mainThreadDispatcher;
Parameters = parameters;
CancellationTokenSource = new CancellationTokenSource();
ImageInformation = new ImageInformation();
CanUseMemoryCache = true;
SetKeys();
Target?.SetImageLoadingTask(this);
}
public ImageLoaderTask(IMemoryCache <TImageContainer> memoryCache, IDataResolverFactory dataResolverFactory, ITarget <TImageContainer, TImageView> target, TaskParameter parameters, IImageService imageService, Configuration configuration, IMainThreadDispatcher mainThreadDispatcher, bool clearCacheOnOutOfMemory)
{
_clearCacheOnOutOfMemory = clearCacheOnOutOfMemory;
MemoryCache = memoryCache;
DataResolverFactory = dataResolverFactory;
PlatformTarget = target;
ImageService = imageService;
Configuration = configuration;
MainThreadDispatcher = mainThreadDispatcher;
Parameters = parameters;
CancellationTokenSource = new CancellationTokenSource();
ImageInformation = new ImageInformation();
CanUseMemoryCache = true;
KeyRaw = Parameters.Path;
if (Parameters.Source == ImageSource.Stream)
{
CanUseMemoryCache = false;
KeyRaw = string.Concat("Stream_", GetNextStreamIndex());
}
if (!string.IsNullOrWhiteSpace(Parameters.CustomCacheKey))
{
CanUseMemoryCache = true;
KeyRaw = Parameters.CustomCacheKey;
}
if (string.IsNullOrWhiteSpace(KeyRaw))
{
KeyRaw = Guid.NewGuid().ToString("N");
}
KeyDownsamplingOnly = string.Empty;
if (Parameters.DownSampleSize != null && (Parameters.DownSampleSize.Item1 > 0 || Parameters.DownSampleSize.Item2 > 0))
{
KeyDownsamplingOnly = string.Concat(";", Parameters.DownSampleSize.Item1, "x", Parameters.DownSampleSize.Item2);
}
KeyTransformationsOnly = string.Empty;
if (Parameters.Transformations != null && Parameters.Transformations.Count > 0)
{
KeyTransformationsOnly = string.Concat(string.Join(";", Parameters.Transformations.Select(t => t.Key)));
}
Key = string.Concat(KeyRaw, KeyDownsamplingOnly, KeyTransformationsOnly);
KeyWithoutTransformations = string.Concat(KeyRaw, KeyDownsamplingOnly);
if (!string.IsNullOrWhiteSpace(Parameters.LoadingPlaceholderPath))
{
if (TransformPlaceholders)
{
KeyForLoadingPlaceholder = string.Concat(Parameters.LoadingPlaceholderPath, KeyDownsamplingOnly, KeyTransformationsOnly);
}
else
{
KeyForLoadingPlaceholder = string.Concat(Parameters.LoadingPlaceholderPath, KeyDownsamplingOnly);
}
}
if (!string.IsNullOrWhiteSpace(Parameters.ErrorPlaceholderPath))
{
if (TransformPlaceholders)
{
KeyForErrorPlaceholder = string.Concat(Parameters.ErrorPlaceholderPath, KeyDownsamplingOnly, KeyTransformationsOnly);
}
else
{
KeyForErrorPlaceholder = string.Concat(Parameters.ErrorPlaceholderPath, KeyDownsamplingOnly);
}
}
ImageInformation.SetKey(Key, Parameters.CustomCacheKey);
ImageInformation.SetPath(Parameters.Path);
Target?.SetImageLoadingTask(this);
}
public WrappedDataResolverFactory(IDataResolverFactory factory)
{
_factory = factory;
}