public void SetAlternative(string writingSystemId, string form)
{
Debug.Assert(!string.IsNullOrEmpty(writingSystemId), "The writing system id was empty.");
Debug.Assert(writingSystemId.Trim() == writingSystemId,
"The writing system id had leading or trailing whitespace");
//enhance: check to see if there has actually been a change
LanguageForm alt = Find(writingSystemId);
if (string.IsNullOrEmpty(form)) // we don't use space to store empty strings.
{
if (alt != null && !alt.IsStarred)
{
RemoveLanguageForm(alt);
}
}
else
{
if (alt != null)
{
alt.Form = form;
}
else
{
AddLanguageForm(new LanguageForm(writingSystemId, form, this));
}
}
NotifyPropertyChanged(writingSystemId);
}
public void SetAnnotationOfAlternativeIsStarred(string id, bool isStarred)
{
LanguageForm alt = Find(id);
if (isStarred)
{
if (alt == null)
{
AddLanguageForm(new LanguageForm(id, String.Empty, this));
alt = Find(id);
Debug.Assert(alt != null);
}
alt.IsStarred = true;
}
else
{
if (alt != null)
{
if (alt.Form == String.Empty) //non-starred and empty? Nuke it.
{
RemoveLanguageForm(alt);
}
else
{
alt.IsStarred = false;
}
}
else
{
//nothing to do. Missing altertive == not starred.
}
}
NotifyPropertyChanged(id);
}
/// <summary>
/// Get a string out
/// </summary>
/// <returns>the string of the requested id if it exists,
/// else the 'first'(?) one that does exist + the suffix,
/// else the given suffix </returns>
private string GetAlternative(string writingSystemId, bool doShowSomethingElseIfMissing,
string notFirstChoiceSuffix)
{
LanguageForm alt = Find(writingSystemId);
if (null == alt)
{
if (doShowSomethingElseIfMissing)
{
return(GetFirstAlternative() + notFirstChoiceSuffix);
}
else
{
return(string.Empty);
}
}
string form = alt.Form;
if (form == null || (form.Trim().Length == 0))
{
if (doShowSomethingElseIfMissing)
{
return(GetFirstAlternative() + notFirstChoiceSuffix);
}
else
{
return(string.Empty);
}
}
else
{
return(form);
}
}
public bool GetAnnotationOfAlternativeIsStarred(string id)
{
LanguageForm alt = Find(id);
if (alt == null)
{
return(false);
}
return(alt.IsStarred);
}
public string GetBestAlternativeString(IEnumerable <string> orderedListOfWritingSystemIds)
{
LanguageForm form = GetBestAlternative(orderedListOfWritingSystemIds);
if (form == null)
{
return(string.Empty);
}
return(form.Form);
}
public bool ContainsEqualForm(LanguageForm other)
{
foreach (LanguageForm form in Forms)
{
if (other.Equals(form))
{
return(true);
}
}
return(false);
}
protected void AddLanguageForm(LanguageForm languageForm)
{
LanguageForm[] forms = new LanguageForm[Forms.Length + 1];
for (int i = 0; i < Forms.Length; i++)
{
forms[i] = Forms[i];
}
//actually copy the contents, as we must now be the parent
forms[Forms.Length] = new LanguageForm(languageForm, this);
Array.Sort(forms);
_forms = forms;
}
/// <summary>
/// Gets the Spans for the exact alternative or null.
/// </summary>
public List <LanguageForm.FormatSpan> GetExactAlternativeSpans(string writingSystemId)
{
LanguageForm alt = Find(writingSystemId);
if (null == alt)
{
return(null);
}
else
{
return(alt.Spans);
}
}
public LanguageForm[] GetOrderedAndFilteredForms(IEnumerable <string> writingSystemIdsInOrder)
{
List <LanguageForm> forms = new List <LanguageForm>();
foreach (string id in writingSystemIdsInOrder)
{
LanguageForm form = Find(id);
if (form != null)
{
forms.Add(form);
}
}
return(forms.ToArray());
}
public void RemoveLanguageForm(LanguageForm languageForm)
{
Debug.Assert(Forms.Length > 0);
LanguageForm[] forms = new LanguageForm[Forms.Length - 1];
for (int i = 0, j = 0; i < forms.Length; i++, j++)
{
if (Forms[j] == languageForm)
{
j++;
}
forms[i] = Forms[j];
}
_forms = forms;
}
public void MergeIn(MultiTextBase incoming)
{
foreach (LanguageForm form in incoming)
{
LanguageForm f = Find(form.WritingSystemId);
if (f != null)
{
f.Form = form.Form;
}
else
{
AddLanguageForm(form); //this actually copies the meat of the form
}
}
}
protected static void CopyForms(Dictionary <string, string> forms, MultiTextBase m)
{
if (forms != null && forms.Keys != null)
{
foreach (string key in forms.Keys)
{
LanguageForm f = m.Find(key);
if (f != null)
{
f.Form = forms[key];
}
else
{
m.SetAlternative(key, forms[key]);
}
}
}
}
/// <summary>
/// Try to get an alternative according to the ws's given(e.g. the enabled writing systems for a field)
/// </summary>
/// <param name="orderedListOfWritingSystemIds"></param>
/// <returns>May return null!</returns>
public LanguageForm GetBestAlternative(IEnumerable <string> orderedListOfWritingSystemIds)
{
foreach (string id in orderedListOfWritingSystemIds)
{
LanguageForm alt = Find(id);
if (null != alt)
{
return(alt);
}
}
// //just send back an empty
// foreach (string id in orderedListOfWritingSystemIds)
// {
// return new LanguageForm(id, string.Empty );
// }
return(null);
}
