Add weather routes project progress

WeatherRoutes/mvc/controller/stylecontroller.cpp

@@ -0,0 +1,30 @@
+#include "stylecontroller.h"
+
+StyleController* StyleController::m_instance;
+
+StyleController *StyleController::Instance()
+{
+    if(m_instance != nullptr)
+    {
+        return m_instance;
+    }
+    m_instance = new StyleController();
+    return m_instance;
+}
+
+StyleController::StyleController(QObject *parent)
+    : QObject{parent}
+{}
+
+int StyleController::colorMode() const
+{
+    return m_colorMode;
+}
+
+void StyleController::setColorMode(int newColorMode)
+{
+    if (m_colorMode == newColorMode)
+        return;
+    m_colorMode = newColorMode;
+    emit colorModeChanged();
+}