private void OnCurrentTimeInvalidated(object sender, EventArgs e)
{
Clock clock = (Clock)sender;
if (clock == null)
{
return;
}
_CurrentMediaTimeSpan = new TimeSpan(clock.CurrentTime.Value.Ticks);
TimerText.Text = _CurrentMediaTimeSpan.ToString();
Slider1.Value = _CurrentMediaTimeSpan.Seconds;
//DebugHelp3D.Trace.Message(_CurrentMediaTimeSpan.TotalSeconds.ToString());
// determine if we need to pause and show an annotation
if (((int)_CurrentMediaTimeSpan.TotalSeconds) == 0)
{
_CurrentSecond = 0;
}
if (_CurrentSecond <= (int)_CurrentMediaTimeSpan.TotalSeconds)
{
//DebugHelp3D.Trace.Message(_CurrentSecond.ToString());
VideoAnnotationItem sci = _VideoAnnotation.FindAnnotation(_CurrentMediaTimeSpan);
if (sci != null)
{
Storyboard s = (Storyboard)DocumentRoot.FindResource("OnLoaded");
s.Seek(DocumentRoot, TimeSpan.FromSeconds(sci.InkTimeSpan.TotalSeconds), TimeSeekOrigin.BeginTime);
PauseShowAnnotation(sci);
}
_CurrentSecond = (int)_CurrentMediaTimeSpan.TotalSeconds + 1;
}
}
public VideoAnnotationItem FindAnnotation(TimeSpan time)
{
if ((time == null) || (Data == null))
{
return(null);
}
VideoAnnotationItem sci = FindVideoAnnotationItemTimeSpan(Data.VideoAnnotationItems, time);
return(sci);
}
private void SeekShowAnnotation(VideoAnnotationItem sci)
{
if (sci == null)
{
return;
}
PauseShowAnnotation(sci);
Storyboard s = (Storyboard)DocumentRoot.FindResource("OnLoaded");
s.Seek(DocumentRoot, TimeSpan.FromSeconds(sci.InkTimeSpan.TotalSeconds), TimeSeekOrigin.BeginTime);
_CurrentSecond = (int)sci.InkTimeSpan.TotalSeconds;
}
private void RemoveItem(VideoAnnotationItemCollection scic, string id)
{
if ((id == null) || (Data == null))
{
return;
}
VideoAnnotationItem sci = FindVideoAnnotationItem(scic, id);
if (sci != null)
{
scic.Remove(sci);
}
}
private void AddItem(VideoAnnotationItemCollection scic, StrokeCollection strokes, string id, string text, TimeSpan time, Point pt)
{
VideoAnnotationItem sci = new VideoAnnotationItem();
sci.ID = id;
sci.Title = id;
sci.Description = text;
sci.Strokes = strokes;
sci.InkTimeSpan = time;
sci.PositionLeft = pt.X;
sci.PositionTop = pt.Y;
scic.Add(sci);
}
private void PauseShowAnnotation(VideoAnnotationItem sci)
{
if (sci == null)
{
return;
}
Application.Current.Windows[1].Height = _ANNOTATE_HEIGHT;
ToggleButton1.IsChecked = true;
ToggleButton1.Content = "Save";
myInkCanvas.Strokes = sci.Strokes.Clone();
TextBox1.Text = sci.Description;
Button1.RaiseEvent(new RoutedEventArgs(Button.ClickEvent)); // forward click event to pause button
}
private VideoAnnotationItem FindVideoAnnotationItemTimeSpan(VideoAnnotationItemCollection scic, TimeSpan time)
{
VideoAnnotationItem sciRet = null;
foreach (VideoAnnotationItem sci in scic)
{
if ((int)sci.InkTimeSpan.TotalSeconds == (int)time.TotalSeconds)
{
sciRet = sci;
break;
}
}
return(sciRet);
}
private VideoAnnotationItem FindVideoAnnotationItem(VideoAnnotationItemCollection scic, string id)
{
VideoAnnotationItem sciRet = null;
foreach (VideoAnnotationItem sci in scic)
{
if (sci.ID == id)
{
sciRet = sci;
break;
}
}
return(sciRet);
}
void OnAnnotationsListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if ((e.AddedItems == null) || (e.AddedItems.Count == 0))
{
return;
}
VideoAnnotationItem sci = e.AddedItems[0] as VideoAnnotationItem;
if (sci == null)
{
return;
}
SeekShowAnnotation(sci);
}