private void ItemsControl_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
{
try
{
//foreach (var game in ViewModel.FilteredGames)
// game.ViewModel.SetDestination(game.ViewModel.X, game.ViewModel.Y + e.Delta);
//foreach (var game in ViewModel.FilteredGames)
// game.MoveToDestination(1);
e.Handled = true;
//var gameGrid = Helpers.UIHelper.FindChild<Grid>(GameGridScrollViewer, "GameGrid");
//var realScrollableHeight = ((gameGrid.RowDefinitions.Count - 1) / 2) * (Const.GameControlSize.Height + Const.GridBorder) - GameGridScrollViewer.ViewportHeight;
// TODO BUG max scrolling height is not updated after filter change
// TODO scrolling with pgUp/ pgDown or ctrl+pgUp / pgDown should be checked against realScrollableHeight
// "smooth" scrolling
Threading.ThreadAndForget(() =>
{
var direction = e.Delta < 0 ? -1.0 : 1.0;
for (var scrollStep = Math.Abs((double)e.Delta); scrollStep > 1; scrollStep = scrollStep / 2)
{
var newScroll = /*Math.Min(*/ GamesScrollViewer.VerticalOffset - (scrollStep * direction); //, realScrollableHeight);
GamesScrollViewer.Dispatcher.Invoke(() =>
{
GamesScrollViewer.ScrollToVerticalOffset(newScroll);
});
//if (newScroll == realScrollableHeight)
// break;
System.Threading.Thread.Sleep(16);
}
});
}
catch (Exception ex)
{
Log.WriteLine(ex.ToString());
}
}
private void FilterButton_Click(object sender, RoutedEventArgs e)
{
// reset scroll to zero when filter is changed
GamesScrollViewer.ScrollToVerticalOffset(0);
}