SetClock(
MediaClock clock,
MediaPlayer player
)
{
VerifyAPI();
MediaClock oldClock = _mediaClock;
MediaClock newClock = clock;
// Avoid infinite loops
if (oldClock != newClock)
{
_mediaClock = newClock;
// Disassociate the old clock
if (oldClock != null)
{
oldClock.Player = null;
}
// Associate the new clock;
if (newClock != null)
{
newClock.Player = player;
}
// According to the spec, setting the Clock to null
// should set the Source to null
if (newClock == null)
{
Open(null);
}
}
}
public Test()
{
_viewModel = new MainWindowViewModel(DialogCoordinator.Instance);
DataContext = _viewModel;
InitializeComponent();
var accent = ThemeManager.Accents.First(x => x.Name == "Purple");
var theme = ThemeManager.GetAppTheme("BaseLight");
ThemeManager.ChangeAppStyle(Application.Current, accent, theme);
TaskEx.Delay(2000);
homepage.IsEnabled = false;
MediaTimeline timeline = new MediaTimeline(new Uri("Wildlife.wmv", UriKind.RelativeOrAbsolute));
clock = timeline.CreateClock();//创建控制时钟
MediaElement mediaElement = Resources["video"] as MediaElement;//得到资源
orgin.Child = mediaElement;
mediaElement.Clock = clock;
clock.Controller.Seek(new TimeSpan(0, 0, 0, 2), TimeSeekOrigin.BeginTime);//跳过固定的时间线
clock.Controller.Stop();
clock.Controller.Begin();
MainTabControl.SelectionChanged += MainTabControl_SelectionChanged;
clock.Completed += Clock_Completed;
}
/// <summary>
/// Called by the Clock to create a type-specific clock for this
/// timeline.
/// </summary>
/// <returns>
/// A clock for this timeline.
/// </returns>
/// <remarks>
/// If a derived class overrides this method, it should only create
/// and return an object of a class inheriting from Clock.
/// </remarks>
protected internal override Clock AllocateClock()
{
if (Source == null)
{
throw new InvalidOperationException(SR.Get(SRID.Media_UriNotSpecified));
}
MediaClock mediaClock = new MediaClock(this);
return(mediaClock);
}
/// <summary>
/// Return the duration from a specific clock
/// </summary>
/// <param name="clock">
/// The Clock whose natural duration is desired.
/// </param>
/// <returns>
/// A Duration quantity representing the natural duration.
/// </returns>
protected override Duration GetNaturalDurationCore(Clock clock)
{
MediaClock mc = (MediaClock)clock;
if (mc.Player == null)
{
return(Duration.Automatic);
}
else
{
return(mc.Player.NaturalDuration);
}
}
public Window1()
{
InitializeComponent();
MediaTimeline timeline = new MediaTimeline(new Uri("Wildlife.wmv", UriKind.RelativeOrAbsolute));
clock = timeline.CreateClock();//创建控制时钟
MediaElement mediaElement = Resources["video"] as MediaElement;//得到资源
orgin.Child = mediaElement;
mediaElement.Clock = clock;
clock.Controller.Seek(new TimeSpan(0, 0, 0, 2), TimeSeekOrigin.BeginTime);//跳过固定的时间线
clock.Controller.Stop();
clock.Controller.Begin();
}
private void Reset()
{
Duration = 0;
CurrentTime = 0;
_clock = null;
_controller = null;
IsMediaLoaded = false;
IsPlaying = false;
IsPaused = false;
_timeline.Source = null;
}
private void MediaOpened(object sender, RoutedEventArgs e)
{
if (MediaPlayerElement.Clock != null &&
MediaPlayerElement.Clock.Controller != null)
{
_clock = MediaPlayerElement.Clock;
_controller = MediaPlayerElement.Clock.Controller;
IsMediaLoaded = true;
_controller.Stop();
if (_clock.NaturalDuration.HasTimeSpan)
{
Duration = _clock.NaturalDuration.TimeSpan.TotalMilliseconds/1000;
}
}
else
{
Reset();
}
}
/// <summary>
/// Called by the Clock to create a type-specific clock for this
/// timeline.
/// </summary>
/// <returns>
/// A clock for this timeline.
/// </returns>
/// <remarks>
/// If a derived class overrides this method, it should only create
/// and return an object of a class inheriting from Clock.
/// </remarks>
protected internal override Clock AllocateClock()
{
if (Source == null)
{
throw new InvalidOperationException(SR.Get(SRID.Media_UriNotSpecified));
}
MediaClock mediaClock = new MediaClock(this);
return mediaClock;
}
// (0.1.3.2)_timer.IsEnabledのチェックを追加。
public void Close()
{
// アンドゥの時にしか呼ばれない！
_questionMediaPlayer.Clock = null;
//_questionMediaPlayer.Stop();
_questionClock = null;
_followClock = null;
if (_timer != null && _timer.IsEnabled)
{
_timer.Stop();
}
NotifyPropertyChanged("CurrentPosition");
_currentSongDuration = TimeSpan.Zero;
NotifyPropertyChanged("Duration");
}
public void Stop()
{
_questionClock.Controller.Pause();
_questionTimeLine.Duration = System.Windows.Duration.Automatic;
_followClock = (MediaClock)_questionTimeLine.CreateClock(true);
_followClock.Controller.Seek(_questionMediaPlayer.Position, TimeSeekOrigin.BeginTime);
_timer.Stop();
this.QuestionStopped(this, EventArgs.Empty);
// Clockを切り替えます。
_questionMediaPlayer.Clock = _followClock;
_followClock.Controller.Pause();
}
public void Start()
{
// 停止位置設定を行う．
if (CurrentQuestion.StopPos > TimeSpan.Zero)
{
_questionTimeLine.Duration = CurrentQuestion.StopPos;
}
// CurrentPosition更新通知用のタイマーを動かす。
_timer = new DispatcherTimer { Interval = TimeSpan.FromMilliseconds(250) };
_timer.Tick += (sender, e) => { NotifyPropertyChanged("CurrentPosition"); };
// 再生を開始する。
_questionClock = (MediaClock)_questionTimeLine.CreateClock(true);
_questionClock.Controller.Seek(CurrentQuestion.PlayPos, TimeSeekOrigin.BeginTime);
_questionClock.Completed += question_Completed;
_questionMediaPlayer.Clock = _questionClock;
_timer.Start();
}
SetClock(
MediaClock clock,
MediaPlayer player
)
{
VerifyAPI();
MediaClock oldClock = _mediaClock;
MediaClock newClock = clock;
// Avoid infinite loops
if (oldClock != newClock)
{
_mediaClock = newClock;
// Disassociate the old clock
if (oldClock != null)
{
oldClock.Player = null;
}
// Associate the new clock;
if (newClock != null)
{
newClock.Player = player;
}
// According to the spec, setting the Clock to null
// should set the Source to null
if (newClock == null)
{
Open(null);
}
}
}
