private void DoPlayTextPart(TextPart tp)
{
PlayerStoryboard.Stop(mediaElement);
MarkerStoryboard.Stop(PositionBar);
PlayPartLength = tp.TextWidth; // 1px = 1 mill
var scaledStartMills = tp.StartMills;
var seekTime = TimeSpan.FromMilliseconds(scaledStartMills);
MarkerRectangle.Margin = new Thickness(scaledStartMills * Scale, 0, 0, 0);
MarkerRectangle.Width = PlayPartLength * Scale;
SeekToMousePointInTime(seekTime);
TrackStartCommand.Execute(null);
}
private void DoTrackStop()
{
PlayerStoryboard.Stop(mediaElement);
}