updated messages

windows.h

@@ -0,0 +1,35 @@
+#ifndef WINDOWS_H
+#define WINDOWS_H
+
+#include "mainwindow.h"
+
+#include <QMutex>
+
+class Windows
+{
+public:
+    static void invalidateEmotes();
+
+    static MainWindow &
+    mainWindow()
+    {
+        m_windowMutex.lock();
+        if (m_mainWindow == NULL) {
+            m_mainWindow = new MainWindow();
+        }
+        m_windowMutex.unlock();
+
+        return *m_mainWindow;
+    }
+
+private:
+    Windows()
+    {
+    }
+
+    static QMutex m_windowMutex;
+
+    static MainWindow *m_mainWindow;
+};
+
+#endif  // WINDOWS_H