/// <summary>
/// Merge two MultiStringAccessor objects.
/// These cases are handled:
/// 1. If the main object (this) is missing an alternative, and the 'source' has it, then add it to 'this'.
/// 2. If the main object has an alternative, and the source has none, then do nothing.
/// 3. If both alternatives are non-empty, then
/// 3.1 if fConcatenateIfBoth is false, keep the current value (do nothing)
/// 3.2 if fConcatenateIfBoth is true, and the values are equal, keep the current value (do nothing);
/// 3.3 if fConcatenateIfBoth is true, and the values are not equal, append the source to the current value.
/// </summary>
/// <param name="source"></param>
/// <param name="fConcatenateIfBoth"></param>
/// <param name="sep">insert between alterantives when merging.</param>
public void MergeAlternatives(MultiStringAccessor source, bool fConcatenateIfBoth, string sep)
{
if (source == null)
return; // Nothing to do.
foreach (LgWritingSystem lws in m_cache.LanguageEncodings)
{
int ws = lws.Hvo;
string myAlt = GetAlternative(ws).Text;
string srcAlt = source.GetAlternative(ws).Text;
if ((myAlt == null || myAlt == String.Empty)
&& (srcAlt != null && srcAlt != String.Empty))
{
SetAlternative(source.GetAlternative(ws).UnderlyingTsString, ws);
}
else if (!fConcatenateIfBoth)
{
continue;
}
else if (myAlt != null && myAlt != String.Empty
&& srcAlt != null && srcAlt != String.Empty
&& !GetAlternative(ws).UnderlyingTsString.Equals(source.GetAlternative(ws).UnderlyingTsString))
{
// concatenate
ITsStrBldr tsb = GetAlternative(ws).UnderlyingTsString.GetBldr();
tsb.Replace(tsb.Length, tsb.Length, sep, null);
tsb.ReplaceTsString(tsb.Length, tsb.Length, source.GetAlternative(ws).UnderlyingTsString);
SetAlternative(tsb.GetString(), ws);
}
}
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Export the back translation of a picture caption
/// </summary>
/// <param name="caption">caption to export</param>
/// ------------------------------------------------------------------------------------
private void ExportPictureBT(MultiStringAccessor caption)
{
string pictureMarker = GetMarkerForStyle(ScrStyleNames.Figure, @"\figcap");
string marker = kBackTransMarkerPrefix + pictureMarker.Substring(1);
for (int i = 0; i < m_requestedAnalWS.Length; i++)
{
int ws = m_requestedAnalWS[i];
string captionText = caption.GetAlternative(ws).Text;
if (captionText != null && captionText != string.Empty)
{
// make sure the pic starts on a new line
m_file.WriteLine();
m_file.WriteLine(marker + GetIcuSuffix(i) + " " + captionText);
}
}
}