public Broker()
{
try
{
_handle = Bindings.enchant_broker_init();
_isLibEnchantAvailable = true;
}
catch (DllNotFoundException)
{
_isLibEnchantAvailable = false;
}
if (_isLibEnchantAvailable == true)
{
VerifyNoErrors();
if (_handle.IsInvalid)
{
throw new ApplicationException("Unable to initialize broker");
}
}
_dictionaryCache = new Dictionary<string, WeakReference>();
_pwlDictionaryCache = new Dictionary<string, WeakReference>();
}
public TextBoxSpellChecker()
{
_extendees = new Dictionary<Control, string>();
bool brokerSuccessfullyCreated = false;
try
{
_broker = new Broker();
brokerSuccessfullyCreated = true;
}
catch
{
//it's okay if we can't create one.
// probably because Enchant isn't installed on this machine
}
if (brokerSuccessfullyCreated)
{
_hotSpotProvider = new HotSpotProvider();
_hotSpotProvider.RetrieveHotSpots += CheckSpelling;
_dictionaries = new Dictionary<string, Dictionary>();
}
}
private static bool RemoveDictionaryFromCache(IDictionary<string, WeakReference> cache, Dictionary dictionary) {
foreach (KeyValuePair<string, WeakReference> pair in cache)
{
if (pair.Value.IsAlive
&& pair.Value.Target == dictionary)
{
cache.Remove(pair.Key);
return true;
}
}
return false;
}
private Dictionary CreateAndRegisterDictionary(SafeDictionaryHandle handle, IDictionary<string, WeakReference> cache, string language_tag) {
Dictionary dictionary;
dictionary = new Dictionary(handle);
dictionary.Disposed += OnDictionaryDisposed;
// always store the dictionaries we have created
// so that we can dispose of them cleanly and give a
// better error message (ObjectDisposed) instead of a crash
// if someone tries to use a dictionary after the broker
// that created it has been disposed.
cache[language_tag] = new WeakReference(dictionary);
return dictionary;
}
/// <summary>
/// Ensure that the specified spelling dictionary will give the specified answer regarding the specified word.
/// </summary>
public static void SetSpellingStatus(string word, bool fCorrect, Dictionary dict)
{
if (fCorrect)
{
if (!dict.Check(word))
dict.Add(word);
}
else
{
if (dict.Check(word))
dict.Remove(word);
}
}
/// <summary>
/// Add the word to the spelling dictionary.
/// Overrides to also add to the wordform inventory.
/// </summary>
/// <param name="dict"></param>
/// <param name="word"></param>
/// <param name="ws"></param>
public override void AddToSpellDict(Dictionary dict, string word, int ws)
{
base.AddToSpellDict(dict, word, ws);
if (m_cache == null)
return; // bizarre, but means we just can't do it.
// If it's in a current vernacular writing system, we want to update the WFI as well.
bool fVern = false;
foreach (LgWritingSystem lws in m_cache.LangProject.CurVernWssRS)
if (lws.Hvo == ws)
{
fVern = true;
break;
}
if (!fVern)
return;
// Now add to WFI.
int hvoWf = SIL.FieldWorks.FDO.Ling.WfiWordform.FindOrCreateWordform(m_cache, word, ws, true);
IWfiWordform wf = SIL.FieldWorks.FDO.Ling.WfiWordform.CreateFromDBObject(m_cache, hvoWf);
wf.SpellingStatus = (int)SpellingStatusStates.correct;
}
