public void PrintViewHierarchy(FrameworkElement c, StringBuilder sb, int level = 0)
{
var children = c.GetChildren().ToImmutableArray();
for (int i = 0; i < children.Length; i++)
{
var v = children[i];
var vElement = (FrameworkElement)v;
var desc = string.Concat(Enumerable.Repeat(" |", level)) + $" [{i + 1}/{children.Length}] {v.GetType().Name}";
if (vElement != null)
{
desc += $" -- ActualHeight:{vElement.ActualHeight}, ActualWidth:{vElement.ActualWidth}, Height:{vElement.Height}, Width:{vElement.Width}, DataContext:{vElement.DataContext?.GetType().FullName}";
var vTextBlock = vElement as TextBlock;
if (vTextBlock != null)
{
desc += $", Text: {vTextBlock.Text}";
}
}
sb.AppendLine(desc);
var childViewGroup = v as Control;
if (childViewGroup != null)
{
PrintViewHierarchy(childViewGroup, sb, level + 1);
}
}
}
private static async Task GenerateBitmap(CancellationToken ct, string folderName, string fileName, FrameworkElement content)
{
var parent = content.Parent as FrameworkElement;
if (parent != null)
{
parent.MinWidth = 400;
parent.MinHeight = 400;
}
content.MinWidth = 400;
content.MinHeight = 400;
var border = content.FindFirstChild <Border>();
if (border != null)
{
border.Background = new SolidColorBrush(Colors.White);
}
Windows.UI.Xaml.Media.Imaging.RenderTargetBitmap bmp = new Windows.UI.Xaml.Media.Imaging.RenderTargetBitmap();
await bmp.RenderAsync(content.Parent as FrameworkElement).AsTask(ct);
content.DataContext = null;
var pixels = await bmp.GetPixelsAsync().AsTask(ct);
var folder = await Windows.Storage.ApplicationData.Current.LocalFolder.CreateFolderAsync(
folderName,
Windows.Storage.CreationCollisionOption.OpenIfExists
).AsTask(ct);
if (folder == null)
{
folder = await Windows.Storage.ApplicationData.Current.LocalFolder.CreateFolderAsync(folderName).AsTask(ct);
}
var file = await folder.CreateFileAsync(
fileName,
Windows.Storage.CreationCollisionOption.ReplaceExisting
).AsTask(ct);
using (var fileStream = await file.OpenAsync(FileAccessMode.ReadWrite).AsTask(ct))
{
var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, fileStream).AsTask(ct);
encoder.SetPixelData(
BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Ignore,
(uint)bmp.PixelWidth,
(uint)bmp.PixelHeight,
DisplayInformation.GetForCurrentView().RawDpiX,
DisplayInformation.GetForCurrentView().RawDpiY,
pixels.ToArray()
);
await encoder.FlushAsync().AsTask(ct);
}
}
