private void SpeakerContentPresenter_Loaded(object sender, RoutedEventArgs e)
{
ContentPresenter contentPresenter = (ContentPresenter)sender;
contentPresenter.Loaded -= SpeakerContentPresenter_Loaded;
AirPlaySpeakerControl control = contentPresenter.FindVisualChild<AirPlaySpeakerControl>();
if (control == null)
return;
_currentSpeakerControls.Add(control);
control.SetSingleSelectionMode(_singleSelectionModeEnabled, false);
}
/// <summary>
/// If the content is an Image, don't allow scaling beyond the natural pixel dimensions of the image.
/// </summary>
/// <returns>The max scale, based on the pixel dimensions of any nested image.</returns>
private double GetMaxScale()
{
if (_content == null)
{
return(MaximumScaleFactor);
}
Image image = _content.FindVisualChild <Image>();
if (image == null)
{
return(MaximumScaleFactor);
}
BitmapSource source = image.Source as BitmapSource;
if (source == null)
{
return(MaximumScaleFactor);
}
return(Math.Max(1, MaximumScaleFactor * Math.Min(source.PixelWidth / image.ActualWidth, source.PixelHeight / image.ActualHeight)));
}