// before we embed we need to check if we have any old shape on the slide. If
// we have, we need to delete it AFTER the new shape is inserted to preserve
// the original timeline.
public void EmbedOnSlide(PowerPointSlide slide, int clickNumber)
{
var isOnClick = clickNumber > 0;
var shapeName = Name;
if (slide != null)
{
// embed new shape using two-turn method. In the first turn, embed the shape, name it to
// something special to distinguish from the old shape; in the second turn, delete the
// old shape using timeline invariant deletion, and rename the new shape to the correct
// name.
try
{
var audioShape = AudioHelper.InsertAudioFileOnSlide(slide, SaveName);
audioShape.Name = "#";
slide.RemoveAnimationsForShape(audioShape);
if (isOnClick)
{
slide.SetShapeAsClickTriggered(audioShape, clickNumber, MsoAnimEffect.msoAnimEffectMediaPlay);
}
else
{
slide.SetAudioAsAutoplay(audioShape);
}
// delete old shape
slide.DeleteShapesWithPrefixTimelineInvariant(Name);
audioShape.Name = shapeName;
}
catch (COMException)
{
// Adding the file failed for one reason or another - probably cancelled by the user.
}
}
else
{
MessageBox.Show("Slide selection error");
}
}
/// <summary>
/// Initialize Audio from a sound shape
/// </summary>
public Audio(Shape shape, string saveName)
{
// detect audio type from shape tag
AudioType audioType = GetShapeAudioType(shape);
this.Type = audioType;
// derive matched id from shape name
string[] temp = shape.Name.Split(new[] { ' ' });
if (temp.Length < 3)
{
throw new FormatException(NarrationsLabText.RecorderUnrecognizeAudio);
}
this.MatchScriptID = Int32.Parse(temp[2]);
// get corresponding audio
this.Name = shape.Name;
this.SaveName = saveName;
this.Length = AudioHelper.GetAudioLengthString(saveName);
this.LengthMillis = AudioHelper.GetAudioLength(saveName);
}