0001-psi-fix-hunspell-cpu-usage.diff

--- git.orig/src/libpsi/tools/spellchecker/hunspellchecker.cpp
+++ git/src/libpsi/tools/spellchecker/hunspellchecker.cpp
@@ -33,6 +33,7 @@
 #include <QTextCodec>
 #include <QCoreApplication>
 #include <QLocale>
+#include <QMutableListIterator>
 //#include <QDebug>
 #include <hunspell.hxx>
 #ifdef Q_OS_WIN
@@ -55,9 +56,6 @@ HunspellChecker::HunspellChecker()
 {
 	getDictPaths();
 	getSupportedLanguages();
-	foreach (const QLocale &locale, supportedLangs_) {
-		addLanguage(locale);
-	}
 }
 
 HunspellChecker::~HunspellChecker()
@@ -116,7 +114,9 @@ void HunspellChecker::getSupportedLangua
 		}
 		foreach (const QFileInfo &fi, dir.entryInfoList(QStringList() << "*.dic", QDir::Files)) {
 			QLocale locale(fi.baseName());
-			if (locale != QLocale::c())  {
+			if (locale != QLocale::c()
+			    && !locale.nativeLanguageName().isEmpty()
+			    && !locale.nativeCountryName().isEmpty()) {
 				retHash.insert(locale.nativeLanguageName()+locale.nativeCountryName(), locale);
 			}
 		}
@@ -180,7 +180,6 @@ bool HunspellChecker::isCorrect(const QS
 			return true;
 		}
 	}
-
 	return false;
 }
 bool HunspellChecker::add(const QString& word)
@@ -208,3 +207,51 @@ bool HunspellChecker::writable() const
 {
 	return false;
 }
+
+void HunspellChecker::unloadLanguage(const QLocale &locale)
+{
+	QMutableListIterator<LangItem> it(languages_);
+	while(it.hasNext()) {
+		LangItem item = it.next();
+		if(item.info.language == locale.language()
+		   && item.info.country == locale.country()) {
+			it.remove();
+		}
+	}
+}
+
+QList<QString> HunspellChecker::getAllLanguages() const
+{
+	QList<QString> result;
+	foreach (const QLocale &locale, supportedLangs_) {
+		result << locale.name();
+	}
+	return result;
+}
+
+void HunspellChecker::setActiveLanguages(const QList<QString> &langs)
+{
+	QSet<LangId> loadedLangs;
+	QSet<LangId> newLangs;
+	foreach (const LangItem &item, languages_) {
+		LangId id(item.info.language, item.info.country);
+		loadedLangs << id;
+	}
+	foreach (const QString &lang, langs) {
+		QLocale locale(lang);
+		LangId id(locale.language(), locale.country());
+		newLangs << id;
+	}
+	QSet<LangId> langsToUnload = loadedLangs - newLangs;
+	QSet<LangId> langsToLoad = newLangs - loadedLangs;
+	QSetIterator<LangId> it(langsToUnload);
+	while(it.hasNext()) {
+		LangId id = it.next();
+		unloadLanguage(QLocale(id.first,id.second));
+	}
+	it = langsToLoad;
+	while(it.hasNext()) {
+		LangId id = it.next();
+		addLanguage(QLocale(id.first,id.second));
+	}
+}
--- git.orig/src/libpsi/tools/spellchecker/hunspellchecker.h
+++ git/src/libpsi/tools/spellchecker/hunspellchecker.h
@@ -38,6 +38,7 @@ class Hunspell;
 class QTextCodec;
 
 typedef QSharedPointer<Hunspell> HunspellPtr;
+typedef QPair<QLocale::Language, QLocale::Country> LangId;
 
 class HunspellChecker : public SpellChecker
 {
@@ -49,6 +50,8 @@ public:
 	virtual bool add(const QString &word);
 	virtual bool available() const;
 	virtual bool writable() const;
+	virtual void setActiveLanguages(const QList<QString> &langs);
+	virtual QList<QString> getAllLanguages() const;
 private:
 	struct DictInfo
 	{
@@ -65,7 +68,7 @@ private:
 	void addLanguage(const QLocale &locale);
 	void getDictPaths();
 	bool scanDictPaths(const QString &language, QFileInfo &aff , QFileInfo &dic);
-
+	void unloadLanguage(const QLocale &locale);
 private:
 	QList<LangItem> languages_;
 	QStringList dictPaths_;