private void AnimateEntry(Size targetSize)
{
var svi = GuiHelpers.GetParentObject <ScatterViewItem>(this, false);
if (svi != null)
{
// Easing function provide a more natural animation
IEasingFunction ease = new BackEase {
EasingMode = EasingMode.EaseOut, Amplitude = 0.3
};
var duration = new Duration(TimeSpan.FromMilliseconds(500));
var w = new DoubleAnimation(0.0, targetSize.Width, duration)
{
EasingFunction = ease
};
var h = new DoubleAnimation(0.0, targetSize.Height, duration)
{
EasingFunction = ease
};
var o = new DoubleAnimation(0.0, 1.0, duration);
// Remove the animation after it has completed so that its possible to manually resize the scatterviewitem
w.Completed += (s, e) => svi.BeginAnimation(ScatterViewItem.WidthProperty, null);
h.Completed += (s, e) => svi.BeginAnimation(ScatterViewItem.HeightProperty, null);
// Set the size manually, otherwise once the animation is removed the size will revert back to the minimum size
// Since animation has higher priority for DP's, this setting won't have effect until the animation is removed
svi.Width = targetSize.Width;
svi.Height = targetSize.Height;
svi.BeginAnimation(ScatterViewItem.WidthProperty, w);
svi.BeginAnimation(ScatterViewItem.HeightProperty, h);
svi.BeginAnimation(ScatterViewItem.OpacityProperty, o);
}
}
private void btnClose_Click(object sender, RoutedEventArgs e)
{
var sv = GuiHelpers.GetParentObject <ScatterView>(this);
if (sv != null)
{
sv.Items.Remove(this);
}
}
private void AnimateExit()
{
var svi = GuiHelpers.GetParentObject <ScatterViewItem>(this, false);
if (svi != null)
{
IEasingFunction ease = new BackEase {
EasingMode = EasingMode.EaseOut, Amplitude = 0.3
};
var duration = new Duration(TimeSpan.FromMilliseconds(500));
var w = new DoubleAnimation(0.0, duration)
{
EasingFunction = ease
};
var h = new DoubleAnimation(0.0, duration)
{
EasingFunction = ease
};
var o = new DoubleAnimation(0.0, duration);
svi.BeginAnimation(ScatterViewItem.WidthProperty, w);
svi.BeginAnimation(ScatterViewItem.HeightProperty, h);
svi.BeginAnimation(ScatterViewItem.OpacityProperty, o);
}
}