private async Task UpdateBackgroundFx(RenderTargetBitmap rtb)
{
////await Task.Delay(1000);
if (_renderedGrid.ActualHeight < 1 ||
_backgroundFxImage == null)
{
return;
}
var pw = rtb.PixelWidth;
var ph = rtb.PixelHeight;
var wb = _backgroundFxImage.Source as WriteableBitmap;
if (wb == null ||
wb.PixelWidth != pw ||
wb.PixelHeight != ph)
{
wb = new WriteableBitmap(pw, ph);
}
await ProcessBackgroundImage(rtb, wb, pw, ph);
_backgroundFxImage.Source = wb;
}
public static async Task<IRandomAccessStream> RenderToRandomAccessStream(this UIElement element) {
var rtb = new RenderTargetBitmap();
await rtb.RenderAsync(element);
IBuffer pixelBuffer = await rtb.GetPixelsAsync();
byte[] pixels = pixelBuffer.ToArray();
// Useful for rendering in the correct DPI
DisplayInformation displayInformation = DisplayInformation.GetForCurrentView();
var stream = new InMemoryRandomAccessStream();
BitmapEncoder encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, stream);
encoder.SetPixelData(BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Premultiplied,
(uint)rtb.PixelWidth,
(uint)rtb.PixelHeight,
displayInformation.RawDpiX,
displayInformation.RawDpiY,
pixels);
await encoder.FlushAsync();
stream.Seek(0);
return stream;
}
public static async Task<IBuffer> SaveAsPngIntoBufferAsync(this Canvas canvas, double _scaleFactor, int dpiForImage = 200)
{
//string currentresolution = Window.Current.Bounds.Width * scaleFactor + "*" + Window.Current.Bounds.Height * scaleFactor;
RenderTargetBitmap renderTargetBitmap = new RenderTargetBitmap();
await renderTargetBitmap.RenderAsync(canvas);
var pixels = await renderTargetBitmap.GetPixelsAsync();
using (IRandomAccessStream stream = new InMemoryRandomAccessStream())
{
var encoder = await
BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, stream);
byte[] bytes = pixels.ToArray();
await CoreWindow.GetForCurrentThread().Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
encoder.SetPixelData(BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Ignore,
(uint)(canvas.ActualWidth * _scaleFactor), (uint)(canvas.ActualHeight * _scaleFactor),
dpiForImage, dpiForImage, bytes);
});
await encoder.FlushAsync();
stream.Seek(0);
var buffer = WindowsRuntimeBuffer.Create((int)stream.Size);
await stream.ReadAsync(buffer, (uint)stream.Size, InputStreamOptions.None);
return buffer;
}
}
async void SaveTheForest()
{
var displayInformation = DisplayInformation.GetForCurrentView();
var imageSize = new Size(ACTWIDTH, ACTHEIGHT);
canvasOfAvaga.Measure(imageSize);
canvasOfAvaga.UpdateLayout();
canvasOfAvaga.Arrange(new Rect(0, 0, imageSize.Width, imageSize.Height));
var renderTargetBitmap = new RenderTargetBitmap();
await renderTargetBitmap.RenderAsync(canvasOfAvaga, Convert.ToInt32(imageSize.Width), Convert.ToInt32(imageSize.Height));
//await renderTargetBitmap.RenderAsync(canvasOfAvaga, Convert.ToInt32(ACTWIDTH), Convert.ToInt32(ACTHEIGHT));
var pixelBuffer = await renderTargetBitmap.GetPixelsAsync();
var picker = new FileSavePicker();
picker.FileTypeChoices.Add(".jpg",new[] {".jpg"});
var file = picker.PickSaveFileAsync();
//var file = await ApplicationData.Current.LocalFolder.CreateFileAsync("D:\\Screen.jpg", CreationCollisionOption.ReplaceExisting);
using (var fileStream = await (await picker.PickSaveFileAsync()).OpenAsync(FileAccessMode.ReadWrite))
{
var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.JpegEncoderId, fileStream);
encoder.SetPixelData(
BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Ignore,
(uint)renderTargetBitmap.PixelWidth,
(uint)renderTargetBitmap.PixelHeight,
displayInformation.LogicalDpi,
displayInformation.LogicalDpi,
pixelBuffer.ToArray());
await encoder.FlushAsync();
}
}
// If showPicker == false => PicturesLibrary capability must be set in client app
public static async Task<IStorageFile> CreateBitmapFromElement(FrameworkElement uielement, bool showPicker = true, string filenamePrefix = "receipt")
{
try
{
var renderTargetBitmap = new RenderTargetBitmap();
await renderTargetBitmap.RenderAsync(uielement);
var file = await SaveFile(showPicker, filenamePrefix);
var pixelBuffer = await renderTargetBitmap.GetPixelsAsync();
using (var stream = await file.OpenAsync(FileAccessMode.ReadWrite))
{
var logicalDpi = DisplayInformation.GetForCurrentView().LogicalDpi;
var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.JpegEncoderId, stream);
encoder.SetPixelData(
BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Ignore,
(uint) renderTargetBitmap.PixelWidth,
(uint) renderTargetBitmap.PixelHeight,
logicalDpi,
logicalDpi,
pixelBuffer.ToArray());
await encoder.FlushAsync();
}
return file;
}
catch (Exception ex)
{
Debug.WriteLine(ex);
return null;
}
}
public static async Task<PixelColor[,]> GetPixels(RenderTargetBitmap source)
{
int width = source.PixelWidth;
int height = source.PixelHeight;
var result = new PixelColor[width, height];
var buffer = await source.GetPixelsAsync();
var bytes = buffer.ToArray();
for (var y = 0; y < height; y++)
{
for (var x = 0; x < width; x++)
{
var k = (y * width + x) * 4;
result[x, y] = new PixelColor
{
Blue = bytes[k],
Green = bytes[k + 1],
Red = bytes[k + 2]
};
}
}
return result;
}
private async Task RenderUIElement(FrameworkElement elm, string fileName, int width, int height) {
await System.Threading.Tasks.Task.Delay(TimeSpan.FromSeconds(1));
using (InMemoryRandomAccessStream ms = new InMemoryRandomAccessStream())
{
var renderTargetBitmap = new RenderTargetBitmap();
await renderTargetBitmap.RenderAsync(elm);
var pixels = await renderTargetBitmap.GetPixelsAsync();
var logicalDpi = DisplayInformation.GetForCurrentView().LogicalDpi;
var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, ms);
encoder.SetPixelData(
BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Ignore,
(uint)renderTargetBitmap.PixelWidth,
(uint)renderTargetBitmap.PixelHeight,
logicalDpi,
logicalDpi,
pixels.ToArray());
await encoder.FlushAsync();
await X.Services.Image.Service.Instance.GenerateResizedImageAsync(width, elm.ActualWidth, elm.ActualHeight, ms, fileName + ".png", Services.Image.Service.location.TileFolder, height);
}
}
async Task _render()
{
var r = new RenderTargetBitmap();
await r.RenderAsync(OLEDRenderer);
var colors = await PixelRender.GetPixels(r);
for (var i = 0; i < r.PixelHeight; i++)
{
for (var x = 0; x < r.PixelWidth; x++)
{
var pixel = colors[x, i];
var average = (pixel.Red + pixel.Green + pixel.Blue) / 3;
if (average > 0)
{
_oled.DrawPixel((ushort)x, (ushort)i, 1);
}
else
{
_oled.DrawPixel((ushort)x, (ushort)i, 0);
}
}
}
_oled.Display();
await Task.Yield();
}
public async Task<string> RenderToBase64(UIElement element)
{
RenderTargetBitmap rtb = new RenderTargetBitmap();
await rtb.RenderAsync(element);
var pixelBuffer = await rtb.GetPixelsAsync();
var pixels = pixelBuffer.ToArray();
// Useful for rendering in the correct DPI
var displayInformation = DisplayInformation.GetForCurrentView();
var stream = new InMemoryRandomAccessStream();
var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, stream);
encoder.SetPixelData(BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Premultiplied,
(uint)rtb.PixelWidth,
(uint)rtb.PixelHeight,
displayInformation.RawDpiX,
displayInformation.RawDpiY,
pixels);
await encoder.FlushAsync();
stream.Seek(0);
// read bytes
var bytes = new byte[stream.Size];
await stream.AsStream().ReadAsync(bytes, 0, bytes.Length);
// create base64
return Convert.ToBase64String(bytes);
}
/// <summary>
/// Start of the Drag and Drop operation: we set some content and change the DragUI
/// depending on the selected options
/// </summary>
/// <param name="sender"></param>
/// <param name="args"></param>
private async void SourceGrid_DragStarting(Windows.UI.Xaml.UIElement sender, Windows.UI.Xaml.DragStartingEventArgs args)
{
args.Data.SetText(SourceTextBox.Text);
if ((bool)DataPackageRB.IsChecked)
{
// Standard icon will be used as the DragUIContent
args.DragUI.SetContentFromDataPackage();
}
else if ((bool)CustomContentRB.IsChecked)
{
// Generate a bitmap with only the TextBox
// We need to take the deferral as the rendering won't be completed synchronously
var deferral = args.GetDeferral();
var rtb = new RenderTargetBitmap();
await rtb.RenderAsync(SourceTextBox);
var buffer = await rtb.GetPixelsAsync();
var bitmap = SoftwareBitmap.CreateCopyFromBuffer(buffer,
BitmapPixelFormat.Bgra8,
rtb.PixelWidth,
rtb.PixelHeight,
BitmapAlphaMode.Premultiplied);
args.DragUI.SetContentFromSoftwareBitmap(bitmap);
deferral.Complete();
}
// else just show the dragged UIElement
}
private async void AppBarButton_Click(object sender, RoutedEventArgs e)
{
var b = new RenderTargetBitmap();
await b.RenderAsync(WatchHubSection);
var vm = this.DataContext as MainPageViewModel;
vm.PurchaseCommand.Execute(b);
}
//Creates RenderTargetBitmap from UI Element
async Task<RenderTargetBitmap> CaptureToStreamAsync(FrameworkElement uielement, IRandomAccessStream stream, Guid encoderId)
{
try
{
var renderTargetBitmap = new RenderTargetBitmap();
await renderTargetBitmap.RenderAsync(uielement);
var pixels = await renderTargetBitmap.GetPixelsAsync();
var logicalDpi = DisplayInformation.GetForCurrentView().LogicalDpi;
var encoder = await BitmapEncoder.CreateAsync(encoderId, stream);
encoder.SetPixelData(
BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Ignore,
(uint)renderTargetBitmap.PixelWidth,
(uint)renderTargetBitmap.PixelHeight,
logicalDpi,
logicalDpi,
/*pixels.ToArray()*/ null);
await encoder.FlushAsync();
return renderTargetBitmap;
}
catch
{
}
return null;
}
public async void takeScreenShot()
{
RenderTargetBitmap renderTargetBitmap = new RenderTargetBitmap();
await renderTargetBitmap.RenderAsync(s);
DataTransferManager.ShowShareUI();
DataTransferManager.GetForCurrentView().DataRequested += OnShareDataRequested;
}
public static async Task RenderHelper(WriteableBitmap targetBitmap, FrameworkElement control, int x, int y)
{
RenderTargetBitmap renderTargetBitmap = new RenderTargetBitmap();
const int PixelSize = 4;
Frame topFrame;
Page topPage;
Panel topPanel;
if (((topFrame = Window.Current.Content as Frame).Content != null)
&& ((topPage = topFrame.Content as Page) != null)
&& ((topPanel = topPage.Content as Panel) != null))
{
/// Create a temporary container for the control to be rendered
var tmpPanel = new StackPanel()
{
// We will try to render the control offscreen to avoid flickering
RenderTransform = new TranslateTransform()
{
X = 1000,
Y = 1000
}
};
var oldParent = control.Parent;
try
{
tmpPanel.Children.Add(control);
topPanel.Children.Add(tmpPanel);
await renderTargetBitmap.RenderAsync(control);
}
finally
{
tmpPanel.Children.Remove(control);
topPanel.Children.Remove(tmpPanel);
}
var array = (await renderTargetBitmap.GetPixelsAsync()).ToArray();
using (var targetStream = targetBitmap.PixelBuffer.AsStream())
{
var startOfLine = y * targetBitmap.PixelWidth * PixelSize;
for (int i = 0; i < renderTargetBitmap.PixelHeight
&& i < targetBitmap.PixelHeight
&& startOfLine < targetBitmap.PixelBuffer.Capacity; i++)
{
targetStream.Seek(startOfLine + (PixelSize * x), SeekOrigin.Begin);
startOfLine = startOfLine + targetBitmap.PixelWidth * PixelSize;
if (i * renderTargetBitmap.PixelWidth * PixelSize < targetBitmap.PixelBuffer.Capacity)
{
await targetStream.WriteAsync(array, i * renderTargetBitmap.PixelWidth * PixelSize, (int)Math.Min(Math.Min(renderTargetBitmap.PixelWidth, targetBitmap.PixelWidth - x) * PixelSize, (long)targetBitmap.PixelBuffer.Capacity));
}
else
{
break;
}
}
}
}
}
private static async Task RenderElementAsync(FrameworkElement element, IRandomAccessStream stream, Guid encoderId, Size size)
{
var bitmap = new RenderTargetBitmap();
await bitmap.RenderAsync(element, (int)size.Width, (int)size.Height);
var pixels = await bitmap.GetPixelsAsync();
var logicalDpi = DisplayInformation.GetForCurrentView().LogicalDpi;
var encoder = await BitmapEncoder.CreateAsync(encoderId, stream);
encoder.SetPixelData(BitmapPixelFormat.Bgra8, BitmapAlphaMode.Straight, (uint)bitmap.PixelWidth, (uint)bitmap.PixelHeight, logicalDpi, logicalDpi, pixels.ToArray());
await encoder.FlushAsync();
}
/// <summary>
/// Applys a blur to a UI element
/// </summary>
/// <param name="sourceElement">UIElement to blur, generally an Image control, but can be anything</param>
/// <param name="blurAmount">Level of blur to apply</param>
/// <returns>Blurred UIElement as BitmapImage</returns>
public static async Task<BitmapImage> BlurElementAsync(this UIElement sourceElement, float blurAmount = 2.0f)
{
if (sourceElement == null)
return null;
var rtb = new RenderTargetBitmap();
await rtb.RenderAsync(sourceElement);
var buffer = await rtb.GetPixelsAsync();
var array = buffer.ToArray();
var displayInformation = DisplayInformation.GetForCurrentView();
using (var stream = new InMemoryRandomAccessStream())
{
var pngEncoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, stream);
pngEncoder.SetPixelData(BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Premultiplied,
(uint) rtb.PixelWidth,
(uint) rtb.PixelHeight,
displayInformation.RawDpiX,
displayInformation.RawDpiY,
array);
await pngEncoder.FlushAsync();
stream.Seek(0);
var canvasDevice = new CanvasDevice();
var bitmap = await CanvasBitmap.LoadAsync(canvasDevice, stream);
var renderer = new CanvasRenderTarget(canvasDevice,
bitmap.SizeInPixels.Width,
bitmap.SizeInPixels.Height,
bitmap.Dpi);
using (var ds = renderer.CreateDrawingSession())
{
var blur = new GaussianBlurEffect
{
BlurAmount = blurAmount,
Source = bitmap
};
ds.DrawImage(blur);
}
stream.Seek(0);
await renderer.SaveAsync(stream, CanvasBitmapFileFormat.Png);
var image = new BitmapImage();
await image.SetSourceAsync(stream);
return image;
}
}
static async Task<RenderTargetBitmap> CaptureToStreamAsync(FrameworkElement uielement, IRandomAccessStream stream, Guid encoderId)
{
var renderTargetBitmap = new RenderTargetBitmap();
await renderTargetBitmap.RenderAsync(uielement);
IBuffer pixels = await renderTargetBitmap.GetPixelsAsync();
double logicalDpi = DisplayInformation.GetForCurrentView().LogicalDpi;
var encoder = await BitmapEncoder.CreateAsync(encoderId, stream);
encoder.SetPixelData(BitmapPixelFormat.Bgra8, BitmapAlphaMode.Straight, (UInt32)(renderTargetBitmap.PixelWidth), (UInt32)(renderTargetBitmap.PixelHeight), logicalDpi, logicalDpi, pixels.ToArray());
await encoder.FlushAsync();
return renderTargetBitmap;
}
/// <summary>
/// Esegue il rendering di un FrameworkElement
/// </summary>
public async Task<WriteableBitmap> Screenshot(FrameworkElement ele)
{
// Render some UI to a RenderTargetBitmap
var renderTargetBitmap = new RenderTargetBitmap();
await renderTargetBitmap.RenderAsync(ele);
// Get the pixel buffer and copy it into a WriteableBitmap
var pixelBuffer = await renderTargetBitmap.GetPixelsAsync();
var width = renderTargetBitmap.PixelWidth;
var height = renderTargetBitmap.PixelHeight;
var wbmp = await new WriteableBitmap(1, 1).FromPixelBuffer(pixelBuffer, width, height);
return wbmp;
}
private async void Page_Loaded(object sender, RoutedEventArgs e)
{
var control = new LandscapeWeekView() { Width = 300, Height = 300 };
TestGrid.Children.Add(control);
var bitmap = new RenderTargetBitmap();
await bitmap.RenderAsync(control);
TestGrid.Children.Remove(control);
TestGrid.Background = new ImageBrush() { ImageSource = bitmap };
}
private void func(string xamlTemplate, string hotel)
{
Canvas oCanvas = (Canvas)XamlReader.Parse(InjectData(xamlTemplate, hotel));
int iWidth = (int)oCanvas.Width;
int iHeight = (int)oCanvas.Height;
oCanvas.Arrange(new Rect(0, 0, iWidth, iHeight));
RenderTargetBitmap oRenderTargetBitmap = new RenderTargetBitmap(iWidth, iHeight, 96, 96, PixelFormats.Default);
oRenderTargetBitmap.Render(oCanvas);
// Save image using JpegBitmapEncoder
}
private async Task UpdateFx()
{
if (_renderedGrid.ActualHeight < 1 ||
_backgroundFxImage == null ||
_foregroundFxImage == null)
{
return;
}
var rtb = new RenderTargetBitmap();
await rtb.RenderAsync(_renderedGrid);
await this.UpdateBackgroundFx(rtb);
await this.UpdateForegroundFx(rtb);
}
private async void BuildButton_OnClick(object sender, RoutedEventArgs e)
{
var bitmap = new RenderTargetBitmap();
await bitmap.RenderAsync(this.ContentGrid);
var pixelBuffer = await bitmap.GetPixelsAsync();
var name = DateTime.Now.ToString("yyyy-MM-dd hh-mm-ss") + ".jpg";
var file = await KnownFolders.SavedPictures.CreateFileAsync(name, CreationCollisionOption.GenerateUniqueName);
using (var stream = await file.OpenAsync(FileAccessMode.ReadWrite))
{
var dpi = DisplayInformation.GetForCurrentView().LogicalDpi;
var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, stream);
encoder.SetPixelData(BitmapPixelFormat.Bgra8, BitmapAlphaMode.Premultiplied,
(uint)bitmap.PixelWidth, (uint)bitmap.PixelHeight, dpi, dpi,
pixelBuffer.ToArray());
await encoder.FlushAsync();
}
}
private async void OnTapped(object sender, TappedRoutedEventArgs e)
{
Type tp = sender.GetType();
runSender.Text = tp.FullName;
Type tpOrg = e.OriginalSource.GetType();
runOrg.Text = tpOrg.FullName;
UIElement u = e.OriginalSource as UIElement;
if(u != null)
{
RenderTargetBitmap rtbmp = new RenderTargetBitmap();
await rtbmp.RenderAsync(u);
img.Source = rtbmp;
}
}
public ColorDialog()
{
this.InitializeComponent();
ImageBrush imageBrush = new ImageBrush();
RenderTargetBitmap renderTargetBitmap = new RenderTargetBitmap();
this.NavigationCacheMode = Windows.UI.Xaml.Navigation.NavigationCacheMode.Enabled;
Rectangle rectangle = new Rectangle();
rectangle.Width = 100;
rectangle.Height = 100;
//colorDialogCanvas.Children.Add(rectangle);
Image img = new Image();
fileOpenPicker.FileTypeFilter.Add(".png");
fileOpenPicker.FileTypeFilter.Add(".jpg");
open();
}
/// <summary>
/// Renders the ui element into a bitmap frame using the specified scale.
/// </summary>
/// <param name = "element">The UI element.</param>
/// <param name = "scale">The scale (default: 1).</param>
/// <returns>The created bitmap frame</returns>
public static BitmapSource RenderToBitmap(this UIElement element, double scale)
{
var renderWidth = (int) (element.RenderSize.Width * scale);
var renderHeight = (int) (element.RenderSize.Height * scale);
var renderTarget = new RenderTargetBitmap(renderWidth, renderHeight, 96, 96, PixelFormats.Pbgra32);
var sourceBrush = new VisualBrush(element);
var drawingVisual = new DrawingVisual();
using (var drawingContext = drawingVisual.RenderOpen())
{
drawingContext.PushTransform(new ScaleTransform(scale, scale));
drawingContext.DrawRectangle(sourceBrush, null, new Rect(new Point(0, 0), new Point(element.RenderSize.Width, element.RenderSize.Height)));
}
renderTarget.Render(drawingVisual);
return renderTarget;
}
/// <summary>
/// Processes the RenderTargetBitmap and outputs the result to the output WriteableBitmap.
/// </summary>
/// <param name="rtb">The RenderTargetBitmap that typically includes a screen grab of the portion of UI.</param>
/// <param name="wb">The WriteableBitmap that the effect output is written to.</param>
/// <param name="pw">The pixel width of both bitmaps.</param>
/// <param name="ph">The pixel height of both bitmaps.</param>
/// <returns>A task that completes when the processing is complete.</returns>
public override async Task ProcessBitmapAsync(RenderTargetBitmap rtb, WriteableBitmap wb, int pw, int ph)
{
//var sw = new Stopwatch();
//sw.Start();
var rtbBuffer = await rtb.GetPixelsAsync();
var rtbPixels = rtbBuffer.GetPixels();
var wbBuffer = wb.PixelBuffer;
var wbPixels = wbBuffer.GetPixels();
// Blur
int radius = 1;
for (int x = 0; x < pw; x++)
for (int y = 0; y < ph; y++)
{
int x1min = Math.Max(0, x - radius);
int x1max = Math.Min(x + radius, pw - 1);
int y1min = Math.Max(0, y - radius);
int y1max = Math.Min(y + radius, ph - 1);
int count = (x1max - x1min + 1) * (y1max - y1min + 1) + 7;
var sum = new int[4];
for (int x1 = x1min; x1 <= x1max; x1++)
for (int y1 = y1min; y1 <= y1max; y1++)
for (int i = 0; i < 4; i++)
sum[i] +=
(x == x1 && y == y1) ?
rtbPixels.Bytes[4 * (y1 * pw + x1) + i] * 8 :
rtbPixels.Bytes[4 * (y1 * pw + x1) + i];
for (int i = 0; i < 4; i++)
wbPixels.Bytes[4 * (y * pw + x) + i] = (byte)(sum[i] / count);
}
wbPixels.UpdateFromBytes();
wb.Invalidate();
//sw.Stop();
//new MessageDialog(sw.ElapsedMilliseconds.ToString()).ShowAsync();
}
public static async void templateCreator(Template t,Image I,Grid VisualTreeParent,int Hoffset, int Voffset,int ScaleFactor)
{
//say cheese
VisualTreeParent.Children.Add(t);
RenderTargetBitmap render = new RenderTargetBitmap();
await render.RenderAsync(t);
var result = await render.GetPixelsAsync();
//print the photo
WriteableBitmap source = new WriteableBitmap(ScaleFactor * render.PixelWidth, ScaleFactor * render.PixelHeight);
using (Stream stream = source.PixelBuffer.AsStream())
{
Byte[] res = new Byte[source.PixelHeight * source.PixelWidth * 4];
for (int i = 0; i < res.Length; i++)
{
res[i] = 0xff;
}
//عيب يا ابو عيسي :P
Byte[] kareem = result.ToArray();
for (int i = 0, j = 0; i + 4 < source.PixelWidth * render.PixelHeight * 4 + Voffset * source.PixelWidth * 4; i = ((j / (render.PixelWidth * 4)) + Voffset) * source.PixelWidth * 4 + i % (render.PixelWidth * 4))
{
if (kareem[j + 1] == 0 && kareem[j] == 0 && kareem[j + 2] == 0 && kareem[j + 3] == 255)
{
for (int l = 0; l < 3; l++)
{
res[i++ + Hoffset * 4] = kareem[j++];
}
res[i++ + Hoffset * 4] = 0;
j++;
}
else
for (int l = 0; l < 4; l++)
{
res[i++ + Hoffset * 4] = 0xff;
j++;
}
}
await stream.WriteAsync(res, 0, res.Length);
}
VisualTreeParent.Children.Remove(t);
I.Source = source;
}
private async void OnPressed(object o, PointerRoutedEventArgs args)
{
if (args.Pointer.PointerDeviceType == Windows.Devices.Input.PointerDeviceType.Pen)
return;
_qbs.Clear();
foreach (var q in _mainpage.MainCanvas.Children.Where(c => c is QueryBoxView))
{
_qbs.Add((QueryBoxView)q);
}
if (!_inqCanvasPressed && args.OriginalSource is InqCanvas)
{
_inqCanvasPressed = true;
}
var pressedItem = (FrameworkElement)args.OriginalSource;
if (_inqCanvasPressed && pressedItem.DataContext is QueryBoxListItemViewModel)
{
_pressedItem = pressedItem;
_mainpage.PointerMoved += OnManipulationDelta;
_pressedPointerId = args.Pointer.PointerId;
foreach (var queryBoxView in _qbs)
{
queryBoxView.IsBlocked = true;
}
var vm = (QueryBoxListItemViewModel)_pressedItem.DataContext;
_graph = Controller.Instance.CreateLineGraph(new List<TimeSeries> {vm.TimeSeriesModel});
_mainpage.MainCanvas.Children.Add(_graph);
RenderTargetBitmap renderTargetBitmap = new RenderTargetBitmap();
await renderTargetBitmap.RenderAsync(_graph, (int)_graph.ActualWidth, (int)_graph.ActualHeight);
// _draggedItem.Background = new SolidColorBrush(Colors.Black);
if (!_mainpage.MainCanvas.Children.Contains(_draggedItem))
_mainpage.MainCanvas.Children.Add(_draggedItem);
_draggedItem.Opacity = 0.5;
_draggedItem.Source = renderTargetBitmap;
}
}
public static async Task<string> CreateNormalTileImage(string cover, UIElement tile)
{
var fileName = MD5.GetMd5String(cover);
var filePath = Path.Combine(LiveTilePicsDirectoryName, fileName);
if (FileExists(filePath)) return filePath;
if (cover.Contains("http"))
{
var target = new RenderTargetBitmap();
tile.Opacity = 1;
await target.RenderAsync(tile);
tile.Opacity = 0;
var pixels = await target.GetPixelsAsync();
}
else
{
}
return filePath;
}
public async Task CaptureThumbnail(InMemoryRandomAccessStream ms)
{
var renderTargetBitmap = new RenderTargetBitmap();
await renderTargetBitmap.RenderAsync(_renderElement);
var pixels = await renderTargetBitmap.GetPixelsAsync();
var logicalDpi = DisplayInformation.GetForCurrentView().LogicalDpi;
var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, ms);
encoder.SetPixelData(
BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Ignore,
(uint)renderTargetBitmap.PixelWidth,
(uint)renderTargetBitmap.PixelHeight,
logicalDpi,
logicalDpi,
pixels.ToArray());
await encoder.FlushAsync();
}
