private void MainCanvas_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
finalMouseX = e.GetPosition(MainCanvas).X;
double diff = Math.Abs(finalMouseX - initMouseX);
// Make sure the diff is substantial so that tiles
// don't scroll on double-click.
if ((diff > 5))
{
if ((finalMouseX < initMouseX))
{
newX = x - (diff * 2);
}
else if ((finalMouseX > initMouseX))
{
newX = x + (diff * 2);
}
anim.KeyFrames.Add(new SplineDoubleKeyFrame(newX, KeyTime.FromTimeSpan(TimeSpan.FromSeconds(1)), new KeySpline(0.161, 0.079, 0.008, 1)));
anim.FillBehavior = FillBehavior.HoldEnd;
MetroStackPanel.BeginAnimation(Canvas.LeftProperty, anim);
anim.KeyFrames.Clear();
timer.Start();
}
}
// Check whether the StackPanel is no longer in view and
// return it to a suitable postion.
private void timer_Tick(object sender, EventArgs e)
{
double mspWidth = MetroStackPanel.ActualWidth;
if ((newX > 200))
{
anim.KeyFrames.Add(new SplineDoubleKeyFrame(45, KeyTime.FromTimeSpan(TimeSpan.FromSeconds(1)), new KeySpline(0.161, 0.079, 0.008, 1)));
anim.FillBehavior = FillBehavior.HoldEnd;
MetroStackPanel.BeginAnimation(Canvas.LeftProperty, anim);
anim.KeyFrames.Clear();
}
else if (((newX + mspWidth) < 500))
{
double widthX = 500 - (newX + mspWidth);
double shiftX = newX + widthX;
anim.KeyFrames.Add(new SplineDoubleKeyFrame(shiftX, KeyTime.FromTimeSpan(TimeSpan.FromSeconds(1)), new KeySpline(0.161, 0.079, 0.008, 1)));
anim.FillBehavior = FillBehavior.HoldEnd;
MetroStackPanel.BeginAnimation(Canvas.LeftProperty, anim);
anim.KeyFrames.Clear();
}
timer.Stop();
}