private void MapShapesWithAudio(PowerPointSlide slide)
{
var relativeSlideId = GetRelativeSlideIndex(slide.ID);
XmlParser xmlParser;
string searchRule = string.Format("^({0}|{1})", SpeechShapePrefixOld, SpeechShapePrefix);
var shapes = slide.GetShapesWithMediaType(PpMediaType.ppMediaTypeSound, new Regex(searchRule));
if (shapes.Count == 0)
{
return;
}
try
{
xmlParser = new XmlParser(string.Format(_tempShapAudioXmlFormat, relativeSlideId + 1));
}
catch (ArgumentException)
{
// xml does not exist, means this page is either a new page or
// created dues to pasting. For either case we do nothing
return;
}
// iterate through all shapes, skip audios that are not generated speech
foreach (var shape in shapes)
{
var audio = new Audio();
// detect audio type
switch (shape.MediaFormat.AudioSamplingRate)
{
case Audio.GeneratedSamplingRate:
audio.Type = Audio.AudioType.Auto;
break;
case Audio.RecordedSamplingRate:
audio.Type = Audio.AudioType.Record;
break;
default:
MessageBox.Show(TextCollection.RecorderUnrecognizeAudio);
break;
}
// derive matched id from shape name
var temp = shape.Name.Split(new[] { ' ' });
audio.MatchScriptID = Int32.Parse(temp[2]);
// get corresponding audio
audio.Name = shape.Name;
audio.SaveName = _tempFullPath + xmlParser.GetCorrespondingAudio(audio.Name);
audio.Length = AudioHelper.GetAudioLengthString(audio.SaveName);
audio.LengthMillis = AudioHelper.GetAudioLength(audio.SaveName);
// maintain a sorted audio list
// Note: here relativeID == slide.Index - 1
if (audio.MatchScriptID >= _audioList[relativeSlideId].Count)
{
_audioList[relativeSlideId].Add(audio);
}
else
{
_audioList[relativeSlideId].Insert(audio.MatchScriptID, audio);
}
// match id > total script count -> script does not exsit
if (audio.MatchScriptID >= _scriptList[relativeSlideId].Count)
{
audio.MatchScriptID = -1;
}
}
}
