BitmapSource TryGetImage(string uriString, InternalImageOptions options)
{
if (uriString == null)
{
return(null);
}
var key = new ImageKey(uriString, options);
WeakReference weakImage;
BitmapSource image;
if (imageCache.TryGetValue(key, out weakImage))
{
image = weakImage.Target as BitmapSource;
if (image != null)
{
return(image);
}
}
image = TryLoadImage(uriString, options.PhysicalSize);
if (image == null)
{
return(null);
}
if (options.BackgroundColor != null)
{
image = ThemedImageCreator.CreateThemedBitmapSource(image, options.BackgroundColor.Value, isHighContrast);
}
imageCache[key] = new WeakReference(image);
return(image);
}
BitmapSource GetImageUsingUri(string uri, Color bgColor)
{
var key = Tuple.Create(uri, bgColor);
BitmapSource image;
if (imageCache.TryGetValue(key, out image))
{
return(image);
}
image = ThemedImageCreator.CreateThemedBitmapSource(new BitmapImage(new Uri(uri)), bgColor, isHighContrast);
imageCache.Add(key, image);
return(image);
}