public ScriptMediaMarker(MediaMarker marker)
{
Content = marker.Content;
Id = marker.Id;
Begin = marker.Begin.TotalSeconds;
End = marker.End.TotalSeconds;
Type = marker.Type;
}
private void Timeline_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
var sourceElement = e.OriginalSource as FrameworkElement;
MediaMarker marker = sourceElement != null
? sourceElement.DataContext as MediaMarker
: null;
if (marker != null && MarkerSelected != null)
{
MarkerSelected(this, new CustomEventArgs <MediaMarker>(marker));
}
}
protected override Size ArrangeOverride(Size finalSize)
{
// use live position when in live, otherwise end position,
// this is the bounds where markers are visisble
TimeSpan endPosition = IsLive && LivePosition.HasValue && !DisplayMarkersOutsideLiveWindow
? LivePosition.Value
: EndPosition;
if (endPosition > StartPosition)
{
// go through each marker control and layout on the timeline
foreach (UIElement childControl in Children)
{
var contentPresenter = childControl as ContentPresenter;
MediaMarker mediaMarker = contentPresenter != null
? contentPresenter.Content as MediaMarker
: null;
if (mediaMarker != null)
{
// make sure the marker is within the timeline range
if (mediaMarker.Begin < StartPosition || mediaMarker.Begin > endPosition)
{
// don't display the marker
childControl.Arrange(new Rect(0, 0, 0, 0));
}
else
{
// convert the absolute time to a relative timeline time
TimeSpan time = mediaMarker.Begin - StartPosition;
// calculate the top position, center the marker vertically
double top = (finalSize.Height - childControl.DesiredSize.Height) / 2;
// calculate the left position, first get the pixel position within the timeline
double left = (time.TotalSeconds * (finalSize.Width - ThumbWidth)) /
(endPosition.TotalSeconds - StartPosition.TotalSeconds);
// next adjust the position so the center of the control is at the time on the timeline,
// note that the marker control can overhang the left or right side of the timeline
left += ((ThumbWidth - childControl.DesiredSize.Width) / 2);
// display the marker
childControl.Arrange(new Rect(left, top, childControl.DesiredSize.Width,
childControl.DesiredSize.Height));
}
}
}
}
return(base.ArrangeOverride(finalSize));
}
private void Item_PositionChanged(MediaMarker item)
{
var tItem = item as TMediaMarker;
if (tItem != null)
{
_suspendCollectionChangedEvents = true;
Remove(tItem);
Add(tItem);
_suspendCollectionChangedEvents = false;
MarkerPositionChanged.IfNotNull(i => i(tItem));
}
}
private void MediaElement_MarkerReached(object sender, TimelineMarkerRoutedEventArgs e)
{
string logMessage = string.Format(ProgressiveMediaPluginResources.TimelineMarkerReached, e.Marker.Time,
e.Marker.Type, e.Marker.Text);
SendLogEntry(KnownLogEntryTypes.MediaElementMarkerReached, message: logMessage);
var mediaMarker = new MediaMarker
{
Type = e.Marker.Type,
Begin = e.Marker.Time,
End = e.Marker.Time,
Content = e.Marker.Text
};
NotifyMarkerReached(mediaMarker);
}
public string SecondsToText(double seconds)
{
TimeSpan ts = TimeSpan.FromSeconds(seconds);
return(MediaMarker.Format(ts));
}
private void NotifyMarkerReached(MediaMarker mediaMarker)
{
MarkerReached.IfNotNull(i => i(this, mediaMarker));
}
public static string ToString(this MediaMarker Marker)
{
return(String.Format("[{0}]{1}: {2}", Marker.Index, Marker.Position, Marker.Label));
}
