protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
printHelper = new PhotosPrintHelper(this);
printHelper.RegisterForPrinting();
}
/// Open coloring page with coloring image and, if applicable, ink.
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
// NavigationEvent parameter is the source of the coloring page, either a blank coloring image or a previously inked coloring page.
String parameter = e.Parameter.ToString();
// If navigating from ContinueColoring, the image is a previously inked coloring page.
if (parameter.EndsWith(Constants.inkedImageFile))
{
// Get folder in local storage containing ink file and coloring image source.
string folderpath = parameter.Substring(0, parameter.IndexOf(Constants.inkedImageFile));
_Foldername = folderpath.Substring(parameter.IndexOf(Constants.inkImageFolder));
try
{
StorageFolder folder = await ApplicationData.Current.LocalFolder.GetFolderAsync(_Foldername);
// Get coloring image source.
StorageFile imgsrcFile = await folder.GetFileAsync(Constants.imgsrcFile);
_Imgsrc = await FileIO.ReadTextAsync(imgsrcFile);
// Load ink.
StorageFile inkFile = await folder.GetFileAsync(Constants.inkFile);
if (inkFile != null)
{
IRandomAccessStream stream = await inkFile.OpenAsync(Windows.Storage.FileAccessMode.Read);
using (var inputStream = stream.GetInputStreamAt(0))
{
await myInkCanvas.InkPresenter.StrokeContainer.LoadAsync(stream);
}
stream.Dispose();
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
// If navigating from PickColoringPage, the image is a blank coloring image.
else
{
Uri abspath = new Uri($"{Windows.ApplicationModel.Package.Current.InstalledLocation.Path}\\Images");
Uri relpath = abspath.MakeRelativeUri(new Uri(parameter));
_Imgsrc = relpath.ToString();
}
// Set up printing.
_PrintHelper = new PhotosPrintHelper(this);
_PrintHelper.RegisterForPrinting();
// Adjust ScrollViewer size to Window.
var bounds = Window.Current.Bounds;
myScrollViewer.Height = bounds.Height - myCommandBar.Height;
myScrollViewer.Width = bounds.Width;
myImage.Source = new BitmapImage(new Uri("ms-appx:///" + _Imgsrc));
}
