Clearing icon cache.

src/gui/dialogs/formmain.cpp

@@ -283,6 +283,9 @@ void FormMain::setupIcons() {
 
   // Setup icons on TabWidget too.
   m_ui->m_tabWidget->setupIcons();
+
+  // Most of icons are loaded, clear the cache.
+  qApp->icons()->clearCache();
 }
 
 void FormMain::loadSize() {

src/miscellaneous/iconfactory.cpp

@@ -57,6 +57,10 @@ QByteArray IconFactory::toByteArray(const QIcon &icon) {
   return array.toBase64();
 }
 
+void IconFactory::clearCache() {
+  m_cachedIcons.clear();
+}
+
 void IconFactory::setupSearchPaths() {
   QIcon::setThemeSearchPaths(QStringList() << APP_THEME_PATH);
   qDebug("Available icon theme paths: %s.",

src/miscellaneous/iconfactory.h

@@ -44,6 +44,8 @@ class IconFactory : public QObject {
     QIcon fromByteArray(QByteArray array);
     QByteArray toByteArray(const QIcon &icon);
 
+    void clearCache();
+
     // Returns icon from active theme or invalid icon if
     // "no icon theme" is set.
     inline QIcon fromTheme(const QString &name) {