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;
}
internal void ChangeStartTime(DateTime newStartTime)
{
if (_playItems[0].ScheduleMode != PlayScheduleMode.Timing)
{
throw new InvalidOperationException();
}
var newStopTime = newStartTime.Add(_playItems[0].PlaybillItem.PlayRange.Duration);
var prevSegment = this.Previous;
if (newStartTime < this.StartTime)
{
if (prevSegment != null)
{
if (prevSegment.HasTimingConflict(newStartTime, newStopTime))
{
throw new InvalidOperationException("定时播或定时插播之间有时间冲突。");
}
for (int i = prevSegment._playItems.Count - 1; i >= 0; i--)
{
var item = prevSegment._playItems[i];
if (item.ScheduleMode == PlayScheduleMode.TimingBreak)
{
if (item.StartTime >= newStartTime)
{
this._playItems.Insert(1, item);
//AddNewTimingBreakItem(item);
prevSegment._playItems.Remove(item);
}
else
{
break;
}
}
}
}
}
else //newStartTime > this.StartTime
{
if (this.HasTimingConflict(newStartTime, newStopTime, _playItems[0]))
{
throw new InvalidOperationException("定时播或定时插播之间有时间冲突。");
}
for (int i = this._playItems.Count - 1; i >= 0; i--)
{
var item = this._playItems[i];
if (item.ScheduleMode == PlayScheduleMode.TimingBreak)
{
if (item.StartTime < newStartTime)
{
if (prevSegment == null)
{
throw new InvalidOperationException();
}
prevSegment._playItems.Add(item);
//prevSegment.AddNewTimingBreakItem(item);
this._playItems.Remove(item);
}
}
}
}
var playSource = _playItems[0].PlaybillItem.PlaySource;
_playItems[0] = (TimingPlaybillItem)TimingPlaybillItem.Timing(playSource, newStartTime);
if (prevSegment != null)
{
prevSegment.IsDirty = true;
}
this.IsDirty = true;
}