public static PlaySource Create(NormalPlaySource playSource, PlayRange playRange)
{
// Note: 是否在自动垫片上操作？
if (playSource == null)
{
throw new ArgumentNullException("playSource");
}
playRange = playSource.Adjust(playRange);
if (playRange == playSource.PlayRange)
{
return(playSource);
}
return(new PlaySourceSegment(playSource, playRange));
}
public override void Split(TimeSpan duration, out PlaybillItem first, out PlaybillItem second)
{
if (duration <= TimeSpan.Zero)
{
throw new ArgumentOutOfRangeException("duration", string.Format("<{0}>无效，必须大于TimeSpan.Zero。", duration));
}
// Note: 是否在自动垫片上操作？
PlayRange firstRange, secondRange;
this.PlaySource.Break(duration, out firstRange, out secondRange);
var segment = this.PlaySource as PlaySourceSegment;
NormalPlaySource source = segment != null ? segment.PlaySource : (NormalPlaySource)this.PlaySource;
var firstSource = PlaySourceSegment.Create(source, firstRange);
first = CreateInternal(firstSource);
var secondSource = PlaySourceSegment.Create(source, secondRange);
second = CreateInternal(secondSource);
}
private AutoPlaybillItem(NormalPlaySource playSource)
: base(playSource, ScheduleMode.Auto)
{
}
private PlaySourceSegment(NormalPlaySource playSource, PlayRange playRange)
{
this.PlayRange = playRange;
this.PlaySource = playSource;
}
private TimingPlaybillItem(DateTime startTime, NormalPlaySource playSource, bool isBreak)
: base(playSource, isBreak ? ScheduleMode.TimingBreak : ScheduleMode.Timing)
{
_scheduleInfo = new ScheduleInfo(startTime, this.PlaySource.PlayRange.Duration, this.ScheduleMode);
}
