internal void ChangeSource(IPlayItem playItem, IMediaSource newSource, PlayRange?newRange)
{
int index = _playItems.IndexOf(playItem);
if (index < 0)
{
throw new ArgumentException();
}
IPlayItem newPlayItem = null;
if (newRange != null && playItem.ScheduleMode != PlayScheduleMode.Auto)
{
if (newRange.Value.Duration > playItem.PlayRange.Duration)
{
var newStopTime = playItem.StartTime.Add(newRange.Value.Duration);
if (this.HasTimingConflict(playItem.StartTime, newStopTime, playItem))
{
throw new InvalidOperationException();
}
}
}
else
{
}
newRange = newRange == null ? new PlayRange(TimeSpan.Zero, playItem.CalculatedPlayDuration) : newRange.Value;
var newPlaySource = new PlaySource(newSource, newRange.Value, playItem.PlaybillItem.PlaySource.CGItems);
switch (playItem.ScheduleMode)
{
case PlayScheduleMode.Auto:
newPlayItem = new AutoPlayItem(AutoPlaybillItem.Auto(newPlaySource));
break;
case PlayScheduleMode.Timing:
newPlayItem = (IPlayItem)TimingPlaybillItem.Timing(newPlaySource, playItem.StartTime);
break;
case PlayScheduleMode.TimingBreak:
newPlayItem = (IPlayItem)TimingPlaybillItem.TimingBreak(newPlaySource, playItem.StartTime);
break;
}
_playItems[index] = newPlayItem;
this.IsDirty = true;
}
public void ChangeStartTime(IPlayItem playItem, DateTime newStartTime)
{
// TODO: 检查操作合法性。
if (newStartTime == playItem.StartTime)
{
return;
}
if (playItem.ScheduleMode == PlayScheduleMode.Timing)
{
ChangeTimingStartTime(playItem, newStartTime);
}
else if (playItem.ScheduleMode == PlayScheduleMode.TimingBreak)
{
var newBreakItem = (TimingPlaybillItem)TimingPlaybillItem.TimingBreak(playItem.PlaybillItem.PlaySource, newStartTime);
this.RemoveItem(playItem); // remove a break item
this.AddTimingBreakItem(newBreakItem); // add a new breakItem
}
else
{
throw new ArgumentException();
}
}