private void SetImage()
{
if (ImageBitmap != null)
{
SetImageDrawable(mImageBitmap.ToNative());
SetScaleType(ScaleType.FitXy);
}
else if (!String.IsNullOrEmpty(mImageUrl))
{
DestroyDrawingCache();
this.SetUrlDrawable(mImageUrl, Resources.GetDrawable(Android.Resource.Color.Transparent));
//SetScaleType(ScaleType.FitXy);
}
else if (!string.IsNullOrEmpty(PathImage))
{
Drawable drawable = Drawable.CreateFromPath(PathImage);
SetImageDrawable(drawable);
//SetScaleType(ScaleType.FitXy);
}
else
{
SetImageResource(Android.Resource.Color.Transparent);
}
}
private async Task GetThumbnailAsync()
{
Uri artworkUrl = this.soundCloudModel.ArtworkUrl;
if (artworkUrl == null)
{
return;
}
// Get a non-shitty resolution <c>
// https: //developers.soundcloud.com/docs/api/reference#tracks <c/>
artworkUrl = new Uri(artworkUrl.ToString().Replace("large", "t300x300"));
this.IsLoadingThumbnail = true;
try
{
IBitmap image = await BlobCache.InMemory.LoadImageFromUrl(artworkUrl.ToString(), absoluteExpiration : DateTimeOffset.Now + TimeSpan.FromMinutes(60));
this.Thumbnail = image.ToNative();
}
catch (Exception ex)
{
this.Log().ErrorException("Failed to download SoundCloud artwork", ex);
}
this.IsLoadingThumbnail = false;
}
private void updateView()
{
if (adapter != null)
{
adapter.NotifyDataSetChanged();
}
if (headerView != null && today != null && profile != null)
{
headerView.FindViewById <TextView> (Resource.Id.textView1).Text = profile.user.full_name;
}
if (totalTextView != null && today != null)
{
totalTextView.StartAnimation(fadeoutAnimation);
totalTextView.Text = today.challenge_profile.total_score.ToString();
totalTextView.StartAnimation(fadeinAnimation);
}
if (profileImageView != null && profileImage != null)
{
profileImageView.StartAnimation(fadeoutAnimation);
profileImageView.SetImageDrawable((BitmapDrawable)profileImage.ToNative());
profileImageView.StartAnimation(fadeinAnimation);
}
}
public XImage CreateImage(double x, double y, double width, double height, byte[] data)
{
Image image = new Image();
// enable high quality image scaling
RenderOptions.SetBitmapScalingMode(image, BitmapScalingMode.HighQuality);
// store original image data is Tag property
image.Tag = data;
// opacity mask is used for determining selection state
image.OpacityMask = NormalBrush;
//using(var ms = new System.IO.MemoryStream(data))
//{
// image = Image.FromStream(ms);
//}
using (var ms = new System.IO.MemoryStream(data))
{
IBitmap profileImage = BitmapLoader.Current.Load(ms, null, null).Result;
image.Source = profileImage.ToNative();
}
image.Width = width;
image.Height = height;
Canvas.SetLeft(image, x);
Canvas.SetTop(image, y);
var ximage = new XImage(image);
return(ximage);
}
private async Task <BitmapSource> LoadArtworkAsync(string key)
{
try
{
IBitmap img = await ArtworkCache.Instance.Retrieve(key, 50, orderHint);
return(img.ToNative());
}
catch (KeyNotFoundException ex)
{
this.Log().WarnException(String.Format("Could not find key {0} of album cover. This reeks like a threading problem", key), ex);
return(null);
}
catch (ArtworkCacheException ex)
{
this.Log().ErrorException(String.Format("Unable to load artwork with key {0} from cache", key), ex);
return(null);
}
catch (Exception ex)
{
this.Log().InfoException(String.Format("Akavache threw an error on artist cover loading for key {0}", key), ex);
return(null);
}
}
public override void ShowImage(IBitmap image, string message, int timeoutMillis)
{
var activity = this.TopActivityFunc();
activity.RunOnUiThread(() =>
AndHUD.Shared.ShowImage(activity, image.ToNative(), message, AndroidHUD.MaskType.Black, TimeSpan.FromMilliseconds(timeoutMillis))
);
}
public static async void SetImageURL(this ImageView imageView, string url)
{
using (IBitmap bmp = await App1.Shared.ImageDownloadService.DownloadImage(url, imageView.Width, imageView.Height))
{
if (bmp != null)
{
using (var nativeBmp = bmp.ToNative())
imageView.SetImageDrawable(nativeBmp);
}
}
}
private async Task <BitmapSource> LoadArtworkAsync(string key)
{
try
{
IBitmap img = await ArtworkCache.Instance.Retrieve(key, 50, orderHint);
return(img.ToNative());
}
catch (KeyNotFoundException ex)
{
this.Log().WarnException("Could not find key \{key} of album cover. This reeks like a threading problem", ex);
return(null);
}
protected override async Task <BitmapHolder> TransformAsync(BitmapHolder bitmap, IList <ITransformation> transformations, string path, ImageSource source, bool isPlaceholder)
{
await StaticLocks.DecodingLock.WaitAsync(CancellationTokenSource.Token).ConfigureAwait(false); // Applying transformations is both CPU and memory intensive
ThrowIfCancellationRequested();
try
{
foreach (var transformation in transformations)
{
ThrowIfCancellationRequested();
var old = bitmap;
try
{
IBitmap bitmapHolder = transformation.Transform(bitmap, path, source, isPlaceholder, Key);
bitmap = bitmapHolder.ToNative();
}
catch (Exception ex)
{
Logger.Error(string.Format("Transformation failed: {0}", transformation.Key), ex);
throw;
}
finally
{
if (old != null && old != bitmap && old.PixelData != bitmap.PixelData)
{
old.FreePixels();
old = null;
}
}
}
}
finally
{
StaticLocks.DecodingLock.Release();
}
return(bitmap);
}
private async Task GetThumbnailAsync()
{
Uri thumbnailUrl = ((YoutubeSong)this.Model).ThumbnailSource;
thumbnailUrl = new Uri(thumbnailUrl.ToString().Replace("default", "hqdefault"));
this.IsLoadingThumbnail = true;
try
{
IBitmap image = await BlobCache.LocalMachine.LoadImageFromUrl(thumbnailUrl.ToString(), absoluteExpiration : DateTimeOffset.Now + TimeSpan.FromMinutes(60));
this.Thumbnail = image.ToNative();
}
catch (Exception ex)
{
this.Log().ErrorException("Failed to download YouTube artwork", ex);
}
this.IsLoadingThumbnail = false;
}
protected virtual ImageView GetIcon(IBitmap icon)
{
var layout = new LinearLayout.LayoutParams(this.DpToPixels(24), this.DpToPixels(24))
{
TopMargin = this.DpToPixels(8),
BottomMargin = this.DpToPixels(8),
LeftMargin = this.DpToPixels(16),
RightMargin = this.DpToPixels(16),
Gravity = GravityFlags.Center
};
var img = new ImageView(this.Activity)
{
LayoutParameters = layout
};
if (icon != null)
{
img.SetImageDrawable(icon.ToNative());
}
return(img);
}
protected virtual void Show(IBitmap image, string message, Color bgColor, int timeoutMillis)
{
var stack = new StackPanel
{
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
Opacity = 0.7
};
if (image != null)
{
var source = image.ToNative();
stack.Children.Add(new Image {
Source = source
});
}
stack.Children.Add(new TextBlock
{
Text = message,
FontSize = 24f,
TextAlignment = TextAlignment.Center,
FontWeight = FontWeights.Bold
});
var cd = new ContentDialog
{
Background = new SolidColorBrush(bgColor.ToNative()),
BorderBrush = new SolidColorBrush(bgColor.ToNative()),
Content = stack
};
stack.Tapped += (sender, args) => cd.Hide();
this.Dispatch(() => cd.ShowAsync());
Task.Delay(TimeSpan.FromMilliseconds(timeoutMillis))
.ContinueWith(x => this.Dispatch(cd.Hide));
}
protected override async Task <BitmapHolder> TransformAsync(BitmapHolder bitmap, IList <ITransformation> transformations, string path, ImageSource source, bool isPlaceholder)
{
await StaticLocks.DecodingLock.WaitAsync(base.CancellationTokenSource.Token).ConfigureAwait(continueOnCapturedContext: false);
ThrowIfCancellationRequested();
try
{
foreach (ITransformation transformation in transformations)
{
ThrowIfCancellationRequested();
BitmapHolder old = bitmap;
try
{
IBitmap bitmapHolder = transformation.Transform(bitmap, path, source, isPlaceholder, base.Key);
bitmap = bitmapHolder.ToNative();
}
catch (Exception ex2)
{
Exception ex = ex2;
base.Logger.Error($"Transformation failed: {transformation.Key}", ex);
throw;
}
finally
{
if (old != null && old != bitmap && old.PixelData != bitmap.PixelData)
{
old.FreePixels();
}
}
}
}
finally
{
StaticLocks.DecodingLock.Release();
}
return(bitmap);
}
public IBitmap Transform(IBitmap source)
{
return(new BitmapHolder(Transform(source.ToNative())));
}
public override void ShowImage(IBitmap image, string message, int timeoutMillis)
{
UIApplication.SharedApplication.InvokeOnMainThread(() =>
BTProgressHUD.ShowImage(image.ToNative(), message, timeoutMillis)
);
}
public override void ShowImage(IBitmap image, string message, int timeoutMillis) => BTProgressHUD.ShowImage(image.ToNative(), message, timeoutMillis);
protected async override Task <WriteableBitmap> GenerateImageAsync(string path, ImageSource source, Stream imageData, ImageInformation imageInformation, bool enableTransformations, bool isPlaceholder)
{
BitmapHolder imageIn = null;
if (imageData == null)
{
throw new ArgumentNullException(nameof(imageData));
}
ThrowIfCancellationRequested();
try
{
// Special case to handle WebP decoding on Windows
string ext = null;
if (!string.IsNullOrWhiteSpace(path) && Uri.IsWellFormedUriString(path, UriKind.RelativeOrAbsolute))
{
if (source == ImageSource.Url)
{
ext = Path.GetExtension(new Uri(path).LocalPath).ToLowerInvariant();
}
else
{
ext = Path.GetExtension(path).ToLowerInvariant();
}
}
bool allowUpscale = Parameters.AllowUpscale ?? Configuration.AllowUpscale;
if (source != ImageSource.Stream && ext == ".webp")
{
throw new NotImplementedException("Webp is not implemented on Windows");
}
else if (enableTransformations && Parameters.Transformations != null && Parameters.Transformations.Count > 0)
{
imageIn = await imageData.ToBitmapHolderAsync(Parameters.DownSampleSize, Parameters.DownSampleUseDipUnits, Parameters.DownSampleInterpolationMode, allowUpscale, imageInformation).ConfigureAwait(false);
}
else
{
return(await imageData.ToBitmapImageAsync(Parameters.DownSampleSize, Parameters.DownSampleUseDipUnits, Parameters.DownSampleInterpolationMode, allowUpscale, imageInformation).ConfigureAwait(false));
}
}
finally
{
imageData?.Dispose();
}
ThrowIfCancellationRequested();
if (enableTransformations && Parameters.Transformations != null && Parameters.Transformations.Count > 0)
{
var transformations = Parameters.Transformations.ToList();
await _decodingLock.WaitAsync().ConfigureAwait(false); // Applying transformations is both CPU and memory intensive
try
{
foreach (var transformation in transformations)
{
ThrowIfCancellationRequested();
var old = imageIn;
try
{
IBitmap bitmapHolder = transformation.Transform(imageIn, path, source, isPlaceholder, Key);
imageIn = bitmapHolder.ToNative();
}
catch (Exception ex)
{
Logger.Error(string.Format("Transformation failed: {0}", transformation.Key), ex);
throw;
}
finally
{
if (old != null && old != imageIn && old.PixelData != imageIn.PixelData)
{
old.FreePixels();
old = null;
}
}
}
}
finally
{
_decodingLock.Release();
}
}
try
{
return(await imageIn.ToBitmapImageAsync());
}
finally
{
imageIn.FreePixels();
imageIn = null;
}
}
public IBitmap Transform(IBitmap source)
{
return new BitmapHolder(Transform(source.ToNative()));
}
protected async override Task <WriteableBitmap> GenerateImageAsync(string path, ImageSource source, Stream imageData, ImageInformation imageInformation, bool enableTransformations, bool isPlaceholder)
{
BitmapHolder imageIn = null;
if (imageData == null)
{
throw new ArgumentNullException(nameof(imageData));
}
ThrowIfCancellationRequested();
try
{
bool allowUpscale = Parameters.AllowUpscale ?? Configuration.AllowUpscale;
if (source != ImageSource.Stream && imageInformation.Type == ImageInformation.ImageType.WEBP)
{
throw new NotImplementedException("Webp is not implemented on Windows");
}
else if (enableTransformations && Parameters.Transformations != null && Parameters.Transformations.Count > 0)
{
imageIn = await imageData.ToBitmapHolderAsync(Parameters.DownSampleSize, Parameters.DownSampleUseDipUnits, Parameters.DownSampleInterpolationMode, allowUpscale, imageInformation).ConfigureAwait(false);
}
else
{
return(await imageData.ToBitmapImageAsync(Parameters.DownSampleSize, Parameters.DownSampleUseDipUnits, Parameters.DownSampleInterpolationMode, allowUpscale, imageInformation).ConfigureAwait(false));
}
}
finally
{
imageData.TryDispose();
}
ThrowIfCancellationRequested();
if (enableTransformations && Parameters.Transformations != null && Parameters.Transformations.Count > 0)
{
var transformations = Parameters.Transformations.ToList();
await _decodingLock.WaitAsync(CancellationTokenSource.Token).ConfigureAwait(false); // Applying transformations is both CPU and memory intensive
ThrowIfCancellationRequested();
try
{
foreach (var transformation in transformations)
{
ThrowIfCancellationRequested();
var old = imageIn;
try
{
IBitmap bitmapHolder = transformation.Transform(imageIn, path, source, isPlaceholder, Key);
imageIn = bitmapHolder.ToNative();
}
catch (Exception ex)
{
Logger.Error(string.Format("Transformation failed: {0}", transformation.Key), ex);
throw;
}
finally
{
if (old != null && old != imageIn && old.PixelData != imageIn.PixelData)
{
old.FreePixels();
old = null;
}
}
}
}
finally
{
_decodingLock.Release();
}
}
try
{
return(await imageIn.ToBitmapImageAsync());
}
finally
{
imageIn.FreePixels();
imageIn = null;
}
}
public override void ShowImage(IBitmap image, string message, int timeoutMillis)
{
UIApplication.SharedApplication.InvokeOnMainThread(() =>
BTProgressHUD.ShowImage(image.ToNative(), message, timeoutMillis)
);
}
static BitmapSource GetBitMapFromMemoryStream(IBitmap bitMap) => bitMap.ToNative();
protected virtual async Task <WithLoadingResult <WriteableBitmap> > GetImageAsync(string path, ImageSource source,
bool isPlaceholder, Stream originalStream = null)
{
if (IsCancelled)
{
return(new WithLoadingResult <WriteableBitmap>(LoadingResult.Canceled));
}
if (IsCancelled)
{
return(new WithLoadingResult <WriteableBitmap>(LoadingResult.Canceled));
}
Stream stream = null;
WithLoadingResult <Stream> streamWithResult;
if (originalStream != null)
{
streamWithResult = new WithLoadingResult <Stream>(originalStream, LoadingResult.Stream);
}
else
{
streamWithResult = await GetStreamAsync(path, source).ConfigureAwait(false);
}
if (streamWithResult.HasError)
{
if (streamWithResult.Result == LoadingResult.NotFound)
{
Logger.Error(string.Format("Not found: {0} from {1}", path, source.ToString()));
}
return(new WithLoadingResult <WriteableBitmap>(streamWithResult.Result));
}
stream = streamWithResult.Item;
if (IsCancelled)
{
return(new WithLoadingResult <WriteableBitmap>(LoadingResult.Canceled));
}
try
{
try
{
if (stream.Position != 0 && !stream.CanSeek)
{
if (originalStream != null)
{
// If we cannot seek the original stream then there's not much we can do
return(new WithLoadingResult <WriteableBitmap>(LoadingResult.Failed));
}
else
{
// Assets stream can't be seeked to origin position
stream.Dispose();
streamWithResult = await GetStreamAsync(path, source).ConfigureAwait(false);
if (streamWithResult.HasError)
{
return(new WithLoadingResult <WriteableBitmap>(streamWithResult.Result));
}
stream = streamWithResult.Item;
}
}
else
{
stream.Seek(0, SeekOrigin.Begin);
}
if (IsCancelled)
{
return(new WithLoadingResult <WriteableBitmap>(LoadingResult.Canceled));
}
}
catch (Exception ex)
{
Logger.Error("Something wrong happened while asynchronously retrieving image size from file: " + path, ex);
return(new WithLoadingResult <WriteableBitmap>(LoadingResult.Failed));
}
WriteableBitmap writableBitmap = null;
// Special case to handle WebP decoding
if (path.ToLowerInvariant().EndsWith(".webp"))
{
//TODO
Logger.Error("Webp is not implemented on Windows");
return(new WithLoadingResult <WriteableBitmap>(LoadingResult.Failed));
}
// Setting image informations
var imageInformation = streamWithResult.ImageInformation ?? new ImageInformation();
imageInformation.SetKey(path == "Stream" ? GetKey() : GetKey(path), Parameters.CustomCacheKey);
bool transformPlaceholdersEnabled = Parameters.TransformPlaceholdersEnabled.HasValue ?
Parameters.TransformPlaceholdersEnabled.Value : ImageService.Instance.Config.TransformPlaceholders;
if (Parameters.Transformations != null && Parameters.Transformations.Count > 0 &&
(!isPlaceholder || (isPlaceholder && transformPlaceholdersEnabled)))
{
BitmapHolder imageIn = null;
try
{
imageIn = await stream.ToBitmapHolderAsync(Parameters.DownSampleSize, Parameters.DownSampleUseDipUnits, Parameters.DownSampleInterpolationMode, imageInformation).ConfigureAwait(false);
}
catch (Exception ex)
{
Logger.Error("Something wrong happened while asynchronously loading/decoding image: " + path, ex);
return(new WithLoadingResult <WriteableBitmap>(LoadingResult.Failed));
}
foreach (var transformation in Parameters.Transformations.ToList() /* to prevent concurrency issues */)
{
if (IsCancelled)
{
return(new WithLoadingResult <WriteableBitmap>(LoadingResult.Canceled));
}
try
{
var old = imageIn;
IBitmap bitmapHolder = transformation.Transform(imageIn);
imageIn = bitmapHolder.ToNative();
if (old != null && old != imageIn && old.Pixels != imageIn.Pixels)
{
old.FreePixels();
old = null;
}
}
catch (Exception ex)
{
Logger.Error("Can't apply transformation " + transformation.Key + " to image " + path, ex);
}
}
writableBitmap = await imageIn.ToBitmapImageAsync();
imageIn.FreePixels();
imageIn = null;
}
else
{
try
{
writableBitmap = await stream.ToBitmapImageAsync(Parameters.DownSampleSize, Parameters.DownSampleUseDipUnits, Parameters.DownSampleInterpolationMode, imageInformation);
}
catch (Exception ex)
{
Logger.Error("Something wrong happened while asynchronously loading/decoding image: " + path, ex);
return(new WithLoadingResult <WriteableBitmap>(LoadingResult.Failed));
}
}
return(WithLoadingResult.Encapsulate(writableBitmap, streamWithResult.Result, imageInformation));
}
finally
{
if (stream != null)
{
stream.Dispose();
}
}
}
public override void ShowImage(IBitmap image, string message, int timeoutMillis)
{
Utils.RequestMainThread(() =>
AndHUD.Shared.ShowImage(this.GetTopActivity(), image.ToNative(), message, AndroidHUD.MaskType.Black, TimeSpan.FromMilliseconds(timeoutMillis))
);
}
public IBitmap Transform(IBitmap bitmapHolder, string path, ImageSource source, bool isPlaceholder, string key)
{
var sourceBitmap = bitmapHolder.ToNative();
return(new BitmapHolder(Transform(sourceBitmap, path, source, isPlaceholder, key)));
}
static BitmapSource GetBitMapFromMemoryStream(IBitmap bitMap) => bitMap.ToNative();
public IBitmap Transform(IBitmap source)
{
return Transform(source.ToNative());
}
public override void ShowImage(IBitmap image, string message, int timeoutMillis)
{
BTProgressHUD.ShowImage(image.ToNative(), message, timeoutMillis);
//this.ShowWithOverlay(timeoutMillis, () => BTProgressHUD.ShowImage(image.ToNative(), message, timeoutMillis));
}
protected virtual async Task <WithLoadingResult <WriteableBitmap> > GetImageAsync(string sourcePath, ImageSource source,
bool isPlaceholder, Stream originalStream = null)
{
if (CancellationToken.IsCancellationRequested)
{
return(null);
}
byte[] bytes = null;
string path = sourcePath;
LoadingResult?result = null;
try
{
if (originalStream != null)
{
using (var ms = new MemoryStream())
{
await originalStream.CopyToAsync(ms).ConfigureAwait(false);
bytes = ms.ToArray();
path = sourcePath;
result = LoadingResult.Stream;
}
}
else
{
using (var resolver = DataResolverFactory.GetResolver(source, Parameters, DownloadCache))
{
var data = await resolver.GetData(path, CancellationToken.Token).ConfigureAwait(false);
if (data == null)
{
return(null);
}
bytes = data.Data;
path = data.ResultIdentifier;
result = data.Result;
}
}
}
catch (OperationCanceledException)
{
Logger.Debug(string.Format("Image request for {0} got cancelled.", path));
return(null);
}
catch (Exception ex)
{
var message = String.Format("Unable to retrieve image data from source: {0}", sourcePath);
Logger.Error(message, ex);
Parameters.OnError(ex);
return(null);
}
if (bytes == null)
{
return(null);
}
var image = await Task.Run(async() =>
{
if (CancellationToken.IsCancellationRequested)
{
return(null);
}
WriteableBitmap writableBitmap = null;
// Special case to handle WebP decoding
if (sourcePath.ToLowerInvariant().EndsWith(".webp"))
{
//TODO
throw new NotImplementedException("Webp is not implemented on Windows");
}
bool transformPlaceholdersEnabled = Parameters.TransformPlaceholdersEnabled.HasValue ?
Parameters.TransformPlaceholdersEnabled.Value : ImageService.Config.TransformPlaceholders;
if (Parameters.Transformations != null && Parameters.Transformations.Count > 0 &&
(!isPlaceholder || (isPlaceholder && transformPlaceholdersEnabled)))
{
BitmapHolder imageIn = await bytes.ToBitmapHolderAsync(Parameters.DownSampleSize, Parameters.DownSampleInterpolationMode).ConfigureAwait(false);
foreach (var transformation in Parameters.Transformations.ToList() /* to prevent concurrency issues */)
{
if (CancellationToken.IsCancellationRequested)
{
return(null);
}
try
{
var old = imageIn;
IBitmap bitmapHolder = transformation.Transform(imageIn);
imageIn = bitmapHolder.ToNative();
// old = null;
// PLEASE NOTE! In Windows we could reuse int array (less memory usage) so we don't need that
}
catch (Exception ex)
{
Logger.Error("Can't apply transformation " + transformation.Key + " to image " + path, ex);
}
}
await MainThreadDispatcher.PostAsync(async() =>
{
writableBitmap = await imageIn.ToBitmapImageAsync();
}).ConfigureAwait(false);
}
else
{
writableBitmap = await bytes.ToBitmapImageAsync(Parameters.DownSampleSize, Parameters.DownSampleInterpolationMode).ConfigureAwait(false);
}
return(writableBitmap);
}).ConfigureAwait(false);
return(WithLoadingResult.Encapsulate(image, result.Value));
}
public override void ShowImage(IBitmap image, string message, int timeoutMillis)
{
Utils.RequestMainThread(() =>
AndHUD.Shared.ShowImage(this.GetTopActivity(), image.ToNative(), message, AndroidHUD.MaskType.Black, TimeSpan.FromMilliseconds(timeoutMillis))
);
}
public override void ShowImage(IBitmap image, string message, int timeoutMillis)
{
this.ShowWithOverlay(timeoutMillis, () => BTProgressHUD.ShowImage(image.ToNative(), message, timeoutMillis));
}
protected virtual void Show(IBitmap image, string message, Color bgColor, int timeoutMillis)
{
var stack = new StackPanel
{
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
Opacity = 0.7
};
if (image != null)
{
var source = image.ToNative();
stack.Children.Add(new Image { Source = source });
}
stack.Children.Add(new TextBlock
{
Text = message,
FontSize = 24f,
TextAlignment = TextAlignment.Center,
FontWeight = FontWeights.Bold
});
var cd = new ContentDialog
{
Background = new SolidColorBrush(bgColor.ToNative()),
BorderBrush = new SolidColorBrush(bgColor.ToNative()),
Content = stack
};
stack.Tapped += (sender, args) => cd.Hide();
this.Dispatch(() => cd.ShowAsync());
Task.Delay(TimeSpan.FromMilliseconds(timeoutMillis))
.ContinueWith(x => this.Dispatch(cd.Hide));
}
public IBitmap Transform(IBitmap bitmapHolder, string path, ImageSource source, bool isPlaceholder, string key)
{
var nativeHolder = bitmapHolder.ToNative();
return(Transform(nativeHolder, path, source, isPlaceholder, key));
}
protected async override Task <WriteableBitmap> GenerateImageAsync(string path, ImageSource source, Stream imageData, ImageInformation imageInformation, bool enableTransformations, bool isPlaceholder)
{
BitmapHolder imageIn = null;
if (imageData == null)
{
throw new ArgumentNullException(nameof(imageData));
}
ThrowIfCancellationRequested();
try
{
// Special case to handle WebP decoding on Windows
if (source != ImageSource.Stream && path.ToLowerInvariant().EndsWith(".webp", StringComparison.OrdinalIgnoreCase))
{
throw new NotImplementedException("Webp is not implemented on Windows");
}
else if (enableTransformations && Parameters.Transformations != null && Parameters.Transformations.Count > 0)
{
imageIn = await imageData.ToBitmapHolderAsync(Parameters.DownSampleSize, Parameters.DownSampleUseDipUnits, Parameters.DownSampleInterpolationMode, imageInformation).ConfigureAwait(false);
}
else
{
return(await imageData.ToBitmapImageAsync(Parameters.DownSampleSize, Parameters.DownSampleUseDipUnits, Parameters.DownSampleInterpolationMode, imageInformation).ConfigureAwait(false));
}
}
finally
{
imageData?.Dispose();
}
ThrowIfCancellationRequested();
if (enableTransformations && Parameters.Transformations != null && Parameters.Transformations.Count > 0)
{
var transformations = Parameters.Transformations.ToList();
await _decodingLock.WaitAsync().ConfigureAwait(false); // Applying transformations is both CPU and memory intensive
try
{
foreach (var transformation in transformations)
{
ThrowIfCancellationRequested();
var old = imageIn;
try
{
IBitmap bitmapHolder = transformation.Transform(imageIn);
imageIn = bitmapHolder.ToNative();
}
catch (Exception ex)
{
Logger.Error(string.Format("Transformation failed: {0}", transformation.Key), ex);
throw;
}
finally
{
if (old != null && old != imageIn && old.Pixels != imageIn.Pixels)
{
old.FreePixels();
old = null;
}
}
}
}
finally
{
_decodingLock.Release();
}
}
try
{
return(await imageIn.ToBitmapImageAsync());
}
finally
{
imageIn.FreePixels();
imageIn = null;
}
}