private async Task SaveStrokesToBitmap(WriteableBitmap b)
{
Rect imgRect = new Rect(0, 0, b.PixelWidth, b.PixelHeight);
InkStrokeContainer container = TheInkCanvas.InkPresenter.StrokeContainer;
InkStrokeBuilder builder = new InkStrokeBuilder();
// Unsichtbare Tinte!
InkDrawingAttributes da = TheInkCanvas.InkPresenter.CopyDefaultDrawingAttributes();
da.Size = new Size(0.1, 0.1);
builder.SetDefaultDrawingAttributes(da);
// Strich in oberer linker Ecke einfügen
InkStroke topLeft = builder.CreateStroke(new List<Point>() {
new Point(1, 1),
new Point(2, 2) });
container.AddStroke(topLeft);
// Strich in unterer Rechter Ecke einfügen
InkStroke bottomRight = builder.CreateStroke(new List<Point>() {
new Point(imgRect.Width -2, imgRect.Height -2),
new Point(imgRect.Width -1, imgRect.Height -1) });
container.AddStroke(bottomRight);
// Striche in WriteableBitmap speichern
WriteableBitmap bmp;
using (InMemoryRandomAccessStream ims =
new InMemoryRandomAccessStream())
{
await container.SaveAsync(ims);
bmp = await new WriteableBitmap(1, 1)
.FromStream(ims, BitmapPixelFormat.Bgra8);
}
// Bilder zusammenfügen
b.Blit(imgRect, bmp, imgRect, WriteableBitmapExtensions.BlendMode.Alpha);
}
private async void LoadWallpaperArt()
{
if (_loaded ||
!App.Locator.AppSettingsHelper.Read("WallpaperArt", true, SettingsStrategy.Roaming)) return;
var wait = App.Locator.AppSettingsHelper.Read<int>("WallpaperDayWait");
var created = App.Locator.AppSettingsHelper.ReadJsonAs<DateTime>("WallpaperCreated");
// Set the image brush
var imageBrush = new ImageBrush { Opacity = .25, Stretch = Stretch.UniformToFill, AlignmentY = AlignmentY.Top};
LayoutGrid.Background = imageBrush;
// Once a week remake the wallpaper
if ((DateTime.Now - created).TotalDays > wait)
{
var albums =
App.Locator.CollectionService.Albums.ToList()
.Where(p => p.HasArtwork)
.ToList();
var albumCount = albums.Count;
if (albumCount < 10) return;
var h = Window.Current.Bounds.Height;
var rows = (int) Math.Ceiling(h/(ActualWidth/5));
const int collumns = 5;
var albumSize = (int) Window.Current.Bounds.Width/collumns;
var numImages = rows*5;
var imagesNeeded = numImages - albumCount;
var shuffle = await Task.FromResult(albums
.Shuffle()
.Take(numImages > albumCount ? albumCount : numImages)
.ToList());
if (imagesNeeded > 0)
{
var repeatList = new List<Album>();
while (imagesNeeded > 0)
{
var takeAmmount = imagesNeeded > albumCount ? albumCount : imagesNeeded;
await Task.Run(() => repeatList.AddRange(shuffle.Shuffle().Take(takeAmmount)));
imagesNeeded -= shuffle.Count;
}
shuffle.AddRange(repeatList);
}
// Initialize an empty WriteableBitmap.
var destination = new WriteableBitmap((int) Window.Current.Bounds.Width,
(int) Window.Current.Bounds.Height);
var col = 0; // Current Column Position
var row = 0; // Current Row Position
destination.Clear(Colors.Black); // Set the background color of the image to black
// will be copied
foreach (var artworkPath in shuffle.Select(album => string.Format(AppConstant.ArtworkPath, album.Id)))
{
var file = await WinRtStorageHelper.GetFileAsync(artworkPath);
// Read the image file into a RandomAccessStream
using (var fileStream = await file.OpenReadAsync())
{
try
{
// Now that you have the raw bytes, create a Image Decoder
var decoder = await BitmapDecoder.CreateAsync(fileStream);
// Get the first frame from the decoder because we are picking an image
var frame = await decoder.GetFrameAsync(0);
// Convert the frame into pixels
var pixelProvider = await frame.GetPixelDataAsync();
// Convert pixels into byte array
var srcPixels = pixelProvider.DetachPixelData();
var wid = (int) frame.PixelWidth;
var hgt = (int) frame.PixelHeight;
// Create an in memory WriteableBitmap of the same size
var bitmap = new WriteableBitmap(wid, hgt); // Temporary bitmap into which the source
using (var pixelStream = bitmap.PixelBuffer.AsStream())
{
pixelStream.Seek(0, SeekOrigin.Begin);
// Push the pixels from the original file into the in-memory bitmap
await pixelStream.WriteAsync(srcPixels, 0, srcPixels.Length);
bitmap.Invalidate();
// Resize the in-memory bitmap and Blit (paste) it at the correct tile
// position (row, col)
destination.Blit(new Rect(col*albumSize, row*albumSize, albumSize, albumSize),
bitmap.Resize(albumSize, albumSize, WriteableBitmapExtensions.Interpolation.Bilinear),
new Rect(0, 0, albumSize, albumSize));
col++;
if (col < collumns) continue;
row++;
col = 0;
}
}
catch
{
// ignored
}
}
}
var wallpaper =
await WinRtStorageHelper.CreateFileAsync("wallpaper.jpg", ApplicationData.Current.LocalFolder);
using (var rndWrite = await wallpaper.OpenAsync(FileAccessMode.ReadWrite))
{
await destination.ToStreamAsJpeg(rndWrite);
}
App.Locator.AppSettingsHelper.WriteAsJson("WallpaperCreated", DateTime.Now);
// If there are 30 or less albums then recreate in one day, else wait a week
App.Locator.AppSettingsHelper.Write("WallpaperDayWait", albums.Count < 30 ? 1 : 7);
imageBrush.ImageSource = null;
imageBrush.ImageSource = new BitmapImage(new Uri("ms-appdata:/local/wallpaper.jpg"));
}
else if (created != DateTime.MinValue)
{
// Not the first time, so there must already be one created
imageBrush.ImageSource = new BitmapImage(new Uri("ms-appdata:/local/wallpaper.jpg"));
}
_loaded = true;
}
async Task CreateCollage(IReadOnlyList<StorageFile> files)
{
progressIndicator.Visibility = Windows.UI.Xaml.Visibility.Visible;
var sampleDataGroups = files;
if (sampleDataGroups.Count() == 0) return;
try
{
// Do a square-root of the number of images to get the
// number of images on x and y axis
int number = (int)Math.Ceiling(Math.Sqrt((double)files.Count));
// Calculate the width of each small image in the collage
int numberX = (int)(ImageCollage.ActualWidth / number);
int numberY = (int)(ImageCollage.ActualHeight / number);
// Initialize an empty WriteableBitmap.
WriteableBitmap destination = new WriteableBitmap(numberX * number, numberY * number);
int col = 0; // Current Column Position
int row = 0; // Current Row Position
destination.Clear(Colors.White); // Set the background color of the image to white
WriteableBitmap bitmap; // Temporary bitmap into which the source
// will be copied
foreach (var file in files)
{
// Create RandomAccessStream reference from the current selected image
RandomAccessStreamReference streamRef = RandomAccessStreamReference.CreateFromFile(file);
int wid = 0;
int hgt = 0;
byte[] srcPixels;
// Read the image file into a RandomAccessStream
using (IRandomAccessStreamWithContentType fileStream = await streamRef.OpenReadAsync())
{
// Now that you have the raw bytes, create a Image Decoder
BitmapDecoder decoder = await BitmapDecoder.CreateAsync(fileStream);
// Get the first frame from the decoder because we are picking an image
BitmapFrame frame = await decoder.GetFrameAsync(0);
// Convert the frame into pixels
PixelDataProvider pixelProvider = await frame.GetPixelDataAsync();
// Convert pixels into byte array
srcPixels = pixelProvider.DetachPixelData();
wid = (int)frame.PixelWidth;
hgt = (int)frame.PixelHeight;
// Create an in memory WriteableBitmap of the same size
bitmap = new WriteableBitmap(wid, hgt);
Stream pixelStream = bitmap.PixelBuffer.AsStream();
pixelStream.Seek(0, SeekOrigin.Begin);
// Push the pixels from the original file into the in-memory bitmap
pixelStream.Write(srcPixels, 0, (int)srcPixels.Length);
bitmap.Invalidate();
if (row < number)
{
// Resize the in-memory bitmap and Blit (paste) it at the correct tile
// position (row, col)
destination.Blit(new Rect(col * numberX, row * numberY, numberX, numberY),
bitmap.Resize(numberX, numberY, WriteableBitmapExtensions.Interpolation.Bilinear),
new Rect(0, 0, numberX, numberY));
col++;
if (col >= number)
{
row++;
col = 0;
}
}
}
}
ImageCollage.Source = destination;
((WriteableBitmap)ImageCollage.Source).Invalidate();
progressIndicator.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
}
catch (Exception ex)
{
// TODO: Log Error, unable to render image
throw;
}
}
private async Task ResizeReferenceImage()
{
this.Precentage = 0.0D;
ToolControlsVisibility = Visibility.Visible;
await DispatcherHelper.RunAsync(async () =>
{
try
{
OnStarted();
var entries = Enum.GetValues(typeof (VisualAssets));
var count = entries.Length;
var percentagePerResizeCycle = 100/count;
StorageFolder fld = null;
if (!string.IsNullOrEmpty(OutputDirectory) || !string.IsNullOrWhiteSpace(OutputDirectory))
{
fld = await StorageFolder.GetFolderFromPathAsync(OutputDirectory);
}
if (ReferenceImage != null)
{
foreach (VisualAssets vasset in entries)
{
CurrentFileName = OutputDirectory + Enum.GetName(typeof (VisualAssets), vasset) + ".png";
//Set the current cycle
Precentage += percentagePerResizeCycle;
var currentImageData = EnumTools.GetAttribute<ImageDataAttribute>(vasset);
WriteableBitmap imgCopy = ReferenceImage.Clone();
var resizedImage = imgCopy.Resize(currentImageData.IconicWidth,
currentImageData.IconicHeight,
WriteableBitmapExtensions.Interpolation.Bilinear);
var visualAsset = new WriteableBitmap(currentImageData.Width, currentImageData.Height);
var outerWidth = visualAsset.PixelWidth/2;
var outerHeight = visualAsset.PixelHeight/2;
var innerWidth = resizedImage.PixelWidth/2;
var innerHeight = resizedImage.PixelHeight/2;
var placmentPointWidht = outerWidth - innerWidth;
var placmentPointHeight = outerHeight - innerHeight;
visualAsset.Blit(new Point(placmentPointWidht, placmentPointHeight), resizedImage,
new Rect(0, 0, resizedImage.PixelWidth, resizedImage.PixelHeight), Colors.White,
WriteableBitmapExtensions.BlendMode.Alpha);
IRandomAccessStream stream = new InMemoryRandomAccessStream();
var bytes = visualAsset.PixelBuffer.ToArray();
var assetName = "";
if (Enum.GetName(typeof (VisualAssets), vasset).Contains("altform"))
{
assetName = Enum.GetName(typeof (VisualAssets), vasset)
.Replace("_altform", "_altform-unplated.png").Replace("TargetSize",".targetsize-");
}
else
{
assetName = Enum.GetName(typeof (VisualAssets), vasset)
.Replace("Scale", ".scale-")
.Replace("Square", "")
.Replace("Wide", "") +
(ChosenTheme == ThemeChosen.Dark ? "_black.png" : "_white.png");
}
using (
var imageStream =
await
fld.OpenStreamForWriteAsync(assetName
,
CreationCollisionOption.ReplaceExisting))
{
BitmapEncoder enc =
await
BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId,
imageStream.AsRandomAccessStream());
enc.SetPixelData(BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Straight,
(uint) visualAsset.PixelWidth,
(uint) visualAsset.PixelHeight,
96, 96,
visualAsset.PixelBuffer.ToArray());
await enc.FlushAsync();
}
}
Precentage = 100;
RaisePropertyChanged(() => Precentage);
await Task.Delay(300);
ToolControlsVisibility = Visibility.Collapsed;
ChooseThemeVisibility = Visibility.Collapsed;
OnEnded();
var messageDialog = new MessageDialog("Asset Creation successfully finished.");
await messageDialog.ShowAsync();
}
}
catch (Exception)
{
var messageDialog =
new MessageDialog(
"Sorry, but you have to choose a folder within your pictures library. Thank you.");
await messageDialog.ShowAsync();
}
});
}
async Task CreateCollage()
{
var sampleDataGroups = this._allGroups;
if (sampleDataGroups.Count() > 0 && sampleDataGroups.ToList()[0].TopItems.Count() == 0) return;
List<TwitterList> list = sampleDataGroups.ToList();
foreach (var currentList in list)
{
try
{
IEnumerable<TweetItem> topItems = currentList.TopItems;
List<Uri> uris = (from tweetItem in topItems
select ((BitmapImage)tweetItem.Image).UriSource).ToList<Uri>();
if (uris.Count > 0)
{
int number = (int)Math.Ceiling(Math.Sqrt((double)uris.Count));
WriteableBitmap destination = new WriteableBitmap(48 * number, 48 * number);
int col = 0;
int row = 0;
destination.Clear(Colors.Transparent);
WriteableBitmap bitmap;
foreach (var uri1 in uris)
{
RandomAccessStreamReference streamRef = RandomAccessStreamReference.CreateFromUri(uri1);
int wid = 0;
int hgt = 0;
byte[] srcPixels;
using (IRandomAccessStreamWithContentType fileStream = await streamRef.OpenReadAsync())
{
BitmapDecoder decoder = await BitmapDecoder.CreateAsync(fileStream);
BitmapFrame frame = await decoder.GetFrameAsync(0);
PixelDataProvider pixelProvider = await frame.GetPixelDataAsync();
srcPixels = pixelProvider.DetachPixelData();
wid = (int)frame.PixelWidth;
hgt = (int)frame.PixelHeight;
bitmap = new WriteableBitmap(wid, hgt);
}
Stream pixelStream1 = bitmap.PixelBuffer.AsStream();
pixelStream1.Seek(0, SeekOrigin.Begin);
pixelStream1.Write(srcPixels, 0, (int)srcPixels.Length);
bitmap.Invalidate();
if (row < number)
{
destination.Blit(new Rect(col * wid, row * hgt, wid, hgt), bitmap, new Rect(0, 0, wid, hgt));
col++;
if (col >= number)
{
row++;
col = 0;
}
}
}
currentList.Image = destination;
((WriteableBitmap)currentList.Image).Invalidate();
}
}
catch (Exception ex)
{
// TODO: Log Error, unable to render image
}
}
}
private async Task<BitmapSource> GetWriteableBitmap()
{
var width = (int)this.Width;
var height = width;
WriteableBitmap writeableBitmap = null;
string cacheFileName = string.Format("{0}.{1}", this.CacheName, ImageExtension);
var storageFile = await Windows.Storage.ApplicationData.Current.LocalFolder.TryGetItemAsync(cacheFileName) as StorageFile;
if (storageFile != null)
{
writeableBitmap = await new WriteableBitmap(width, height).LoadAsync(storageFile);
}
else
{
try
{
var innerWidth = width / 2;
var innerHeight = innerWidth;
writeableBitmap = new WriteableBitmap(width, height);
int index = 0;
foreach (Uri uri in this.m_uriCollection)
{
try
{
var randomAccessStreamReference = RandomAccessStreamReference.CreateFromUri(uri);
using (IRandomAccessStream randomAccessStream = await randomAccessStreamReference.OpenReadAsync())
{
if (randomAccessStream != null)
{
//We initialize the bitmap with height and width, but the actual size will be reset after the FromStream method!
WriteableBitmap innerImage = new WriteableBitmap(innerWidth, innerHeight);
innerImage = await innerImage.FromStream(randomAccessStream);
int xPosition = 0;
int yPosition = 0;
if (index == 1 || index == 2)
{
xPosition = xPosition + innerWidth;
}
if (index == 2 || index == 3)
{
yPosition = yPosition + innerHeight;
}
writeableBitmap.Blit(
new Rect()
{
Height = innerHeight,
Width = innerWidth,
X = xPosition,
Y = yPosition
},
innerImage,
new Rect()
{
Height = innerImage.PixelHeight,
Width = innerImage.PixelWidth,
X = 0,
Y = 0
}, WriteableBitmapExtensions.BlendMode.Additive);
}
index++;
}
}
catch(Exception)
{ }
}
await writeableBitmap.SaveToFile(Windows.Storage.ApplicationData.Current.LocalFolder, cacheFileName, CreationCollisionOption.ReplaceExisting);
}
catch (Exception)
{
}
}
return writeableBitmap;
}
public async Task<BitmapSource> GetBitmapSource(object bitmapSource, string cacheName, int width, bool asThumbnail = false)
{
var height = width;
WriteableBitmap writeableBitmap = null;
ObservableCollection<Uri> uriSource = bitmapSource as ObservableCollection<Uri>;
if (!string.IsNullOrEmpty(cacheName) && uriSource != null)
{
try
{
cacheName = asThumbnail ? cacheName + ThumbnailPart : cacheName;
string cacheFileName = string.Format("{0}.{1}", cacheName, ImageExtension);
var storageFolder = await LocalStorage.GetImageFolderAsync();
var storageFile = await storageFolder.TryGetItemAsync(cacheFileName) as StorageFile;
if (storageFile != null)
{
writeableBitmap = await new WriteableBitmap(width, height).LoadAsync(storageFile);
}
var innerWidth = width / 2;
var innerHeight = innerWidth;
writeableBitmap = new WriteableBitmap(width, height);
int index = 0;
foreach (Uri uri in uriSource)
{
try
{
var randomAccessStreamReference = RandomAccessStreamReference.CreateFromUri(uri);
using (IRandomAccessStream randomAccessStream = await randomAccessStreamReference.OpenReadAsync())
{
if (randomAccessStream != null)
{
//We initialize the bitmap with height and width, but the actual size will be reset after the FromStream method!
WriteableBitmap innerImage = new WriteableBitmap(innerWidth, innerHeight);
innerImage = await innerImage.FromStream(randomAccessStream);
int xPosition = 0;
int yPosition = 0;
if (index == 1 || index == 2)
{
xPosition = xPosition + innerWidth;
}
if (index == 1 || index == 3)
{
yPosition = yPosition + innerHeight;
}
writeableBitmap.Blit(
new Rect()
{
Height = innerHeight,
Width = innerWidth,
X = xPosition,
Y = yPosition
},
innerImage,
new Rect()
{
Height = innerImage.PixelHeight,
Width = innerImage.PixelWidth,
X = 0,
Y = 0
}, WriteableBitmapExtensions.BlendMode.Additive);
}
index++;
}
}
catch (Exception)
{ }
}
await writeableBitmap.SaveToFile(storageFolder, cacheFileName, CreationCollisionOption.ReplaceExisting);
}
catch (Exception)
{
}
}
return writeableBitmap;
}