private void LoadTemplates()
{
Items.Clear();
PageItems.Clear();
int count = 0;
string[] files = Directory.GetFiles(Constants.TemplateThumbnailRoot);
if (files == null)
{
Debug.Write("Error: Reading files from the souvenirs image folder returns null.");
return;
}
foreach (var file in files)
{
string name = Path.GetFileNameWithoutExtension(file);
TemplateModel template = new TemplateModel(name, Path.GetFullPath(file), name);
if (count < Constants.NumberOfItemsPerPage)
{
PageItems.Add(template);
++count;
}
Items.Add(template);
}
PageCursor = 1;
NumberOfPages = (Items.Count + Constants.NumberOfItemsPerPage - 1) / Constants.NumberOfItemsPerPage;
PageBackCommand.RaiseCanExecuteChanged();
PageForwardCommand.RaiseCanExecuteChanged();
}
protected void Reset()
{
PageCursor = 1;
NumberOfPages = 1;
Items.Clear();
PageItems.Clear();
PageBackCommand.RaiseCanExecuteChanged();
PageForwardCommand.RaiseCanExecuteChanged();
}
private void EditBookChanged()
{
EditBook.BookPages.CollectionChanged += BookPages_CollectionChanged;
PaperWidth = EditBook.PaperSize.GetWidthPixel();
PaperHeight = EditBook.PaperSize.GetHeightPiexl();
TotalNum = EditBook.BookPages.Count;
LeftNum = -1;
RightNum = 0;
PageBackCommand.RaiseCanExecuteChanged();
PageForwardCommand.RaiseCanExecuteChanged();
}
private void PageForwardCommandExecute(object parameter)
{
PageItems.Clear();
++PageCursor;
int startIndex = (PageCursor - 1) * Constants.NumberOfItemsPerPage;
for (var i = startIndex; i < startIndex + Constants.NumberOfItemsPerPage; ++i)
{
if (i >= Items.Count)
{
break;
}
PageItems.Add(Items[i]);
}
PageBackCommand.RaiseCanExecuteChanged();
PageForwardCommand.RaiseCanExecuteChanged();
}
private void BookPages_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
TotalNum = EditBook.BookPages.Count;
if (e.Action == NotifyCollectionChangedAction.Remove &&
TotalNum % 2 == 0)
{
PageBack();
}
else
{
LeftNum = LeftNum;
RightNum = RightNum;
}
PageBackCommand.RaiseCanExecuteChanged();
PageForwardCommand.RaiseCanExecuteChanged();
}
private async void LoadAlbumsAsync()
{
lock (loadAlbumsMutex)
{
if (isLoadingAlbums)
{
return;
}
isLoadingAlbums = true;
}
Items.Clear();
PageItems.Clear();
int count = 0;
var albums = await oneDriveController.GetAlbumsAsync();
if (albums == null)
{
if (!HasInternetConnection)
{
Debug.WriteLine("No internet connection.");
}
ItemsExist = false;
IsLoading = false;
Debug.WriteLine("Error: Fetching albums from OneDrive returns null.");
lock (loadAlbumsMutex)
{
isLoadingAlbums = false;
}
}
else
{
foreach (var album in albums)
{
var bundle = new BundleModel(album.Id, album.Name, album.ThumbnailUrl);
if (count < Constants.NumberOfItemsPerPage)
{
PageItems.Add(bundle);
++count;
}
Items.Add(bundle);
}
}
PageCursor = 1;
NumberOfPages = (Items.Count + Constants.NumberOfItemsPerPage - 1) / Constants.NumberOfItemsPerPage;
NumberOfPages = NumberOfPages < 1 ? 1 : NumberOfPages;
ItemsExist = Items.Count != 0;
PageBackCommand.RaiseCanExecuteChanged();
PageForwardCommand.RaiseCanExecuteChanged();
IsLoading = false;
lock (loadAlbumsMutex)
{
isLoadingAlbums = false;
}
}