/// <summary>
/// Clicking on the save button saves the photo in MainPage.ImageStream
/// to media library camera roll. Once image has been saved, the
/// application will navigate back to the main page.
/// </summary>
private async void SaveButton_Click(object sender, RoutedEventArgs e)
{
int selectedIndex = FilterPreviewListView.SelectedIndex;
DataContext dataContext = FilterEffects.DataContext.Instance;
// Create the File Picker control
var picker = new FileSavePicker();
picker.FileTypeChoices.Add("JPG File", new List <string> {
".jpg"
});
StorageFile file = await picker.PickSaveFileAsync();
if (file != null)
{
// If the file path and name is entered properly, and user has not tapped 'cancel'..
AbstractFilter filter = _filters[selectedIndex];
IBuffer buffer = await filter.RenderJpegAsync(
dataContext.FullResolutionStream.GetWindowsRuntimeBuffer());
using (IRandomAccessStream stream = await file.OpenAsync(FileAccessMode.ReadWrite))
{
await stream.WriteAsync(buffer);
await stream.FlushAsync();
}
ShowToast(Strings.ImageSavedAs + file.Name);
}
}
/// <summary>
/// Initializes the filters and creates the preview images.
/// </summary>
private async void CreatePreviewImagesAsync()
{
Debug.WriteLine(DebugTag + "CreatePreviewImages()");
DataContext dataContext = FilterEffects.DataContext.Instance;
if (dataContext.PreviewResolutionStream == null)
{
Debug.WriteLine(DebugTag + "No image (preview) stream available!");
_navigationHelper.GoBack();
}
else
{
foreach (AbstractFilter filter in _filters)
{
Debug.WriteLine(DebugTag + "CreatePreviewImages(): " + filter.Name);
filter.PreviewResolution = FilterEffects.DataContext.Instance.PreviewResolution;
filter.Buffer = dataContext.PreviewResolutionStream.GetWindowsRuntimeBuffer();
filter.Apply();
if (filter is OriginalImageFilter)
{
AbstractFilter filter1 = filter;
await Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(
Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
PreviewImage.Source = filter1.PreviewImageSource;
});
}
_filterPreviewViewModel.Add(filter);
}
}
FilterPreviewListView.SelectedIndex = 0;
}
/// <summary>
/// Severes the connections related to showing and hiding the filter
/// property controls and hides the controls if visible.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void FilterPreviewPivot_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
int index = FilterPreviewPivot.SelectedIndex;
Debug.WriteLine(DebugTag + "FilterPreviewPivot_SelectionChanged(): Index is " + index);
if (!_hintTextShown && index != 0)
{
HintText.Visibility = Visibility.Visible;
_hintTextShown = true;
}
else if (_hintTextShown &&
HintText.Visibility == Visibility.Visible &&
index == 0)
{
HintText.Visibility = Visibility.Collapsed;
_hintTextShown = false;
}
ShowControlsAnimationStoryBoard.Completed -= ShowControlsAnimationStoryBoard_Completed;
HideControlsAnimation.Completed -= HideControlsAnimation_Completed;
ShowControlsAnimationStoryBoard.Stop();
HideControlsAnimationStoryBoard.Stop();
FilterControlsContainer.Visibility = Visibility.Collapsed;
FilterControlsContainer.Opacity = 0;
FilterControlsContainer.Children.Clear();
AbstractFilter filter = _filters[index];
if (filter.Control != null)
{
FilterControlsContainer.Children.Add(filter.Control);
}
}
/// <summary>
/// Clicking on the save button opens a file picker, which prompts for
/// the location where to save the image.
/// </summary>
private async void SaveButton_Click(object sender, RoutedEventArgs e)
{
ProgressIndicator.IsActive = true;
#if WINDOWS_PHONE_APP
int selectedIndex = FilterPreviewPivot.SelectedIndex;
#else
int selectedIndex = FilterPreviewListView.SelectedIndex;
#endif
AbstractFilter filter = _filters[selectedIndex];
DataContext dataContext = FilterEffects.DataContext.Instance;
IBuffer buffer = await filter.RenderJpegAsync(
dataContext.FullResolutionStream.GetWindowsRuntimeBuffer());
FileManager fileManager = FileManager.Instance;
bool success = await fileManager.SaveImageFileAsync(buffer);
if (success)
{
#if WINDOWS_PHONE_APP
fileManager.ImageFileSavedResult += OnImageFileSavedResult;
#else
// On Windows the image is already saved
OnImageFileSavedResult(null, success);
#endif
}
else
{
ProgressIndicator.IsActive = false;
}
}
/// <summary>
/// Clicking on the save button saves the photo in MainPage.ImageStream
/// to media library camera roll. Once image has been saved, the
/// application will navigate back to the main page.
/// </summary>
private async void SaveButton_Click(object sender, EventArgs e)
{
_progressIndicator.Text = AppResources.SavingText;
_progressIndicator.IsVisible = true;
SystemTray.SetProgressIndicator(this, _progressIndicator);
int selectedIndex = FilterPreviewPivot.SelectedIndex;
DataContext dataContext = FilterEffects.DataContext.Instance;
GC.Collect();
try
{
if (selectedIndex == 0)
{
using (MediaLibrary library = new MediaLibrary())
{
dataContext.FullResolutionStream.Position = 0;
library.SavePictureToCameraRoll(FileNamePrefix
+ DateTime.Now.ToString() + ".jpg",
dataContext.FullResolutionStream);
}
}
else
{
AbstractFilter filter = _filters[selectedIndex];
IBuffer buffer = await filter.RenderJpegAsync(
dataContext.FullResolutionStream.GetWindowsRuntimeBuffer());
using (MediaLibrary library = new MediaLibrary())
{
library.SavePictureToCameraRoll(FileNamePrefix
+ DateTime.Now.ToString() + ".jpg", buffer.AsStream());
}
}
}
catch (Exception ex)
{
MessageBox.Show("Failed to save the image: " + ex.ToString());
}
_progressIndicator.IsVisible = false;
SystemTray.SetProgressIndicator(this, _progressIndicator);
NavigationService.GoBack();
}