Fixed compiler warnings.

src/font/font_with_face.cpp

@@ -336,7 +336,7 @@ void FontWithFace::setDPI()
     if (UserConfigParams::m_hidpi_enabled)
     {
         float scale = screen_height / 480.0f;
-        m_face_dpi = getScalingFactorTwo() * getScalingFactorOne() * scale;
+        m_face_dpi = int(getScalingFactorTwo() * getScalingFactorOne() * scale);
     }
     else
     {

src/guiengine/widgets/dynamic_ribbon_widget.cpp

@@ -155,7 +155,7 @@ void DynamicRibbonWidget::add()
     
     if (UserConfigParams::m_hidpi_enabled)
     {
-        m_arrows_w *= 1.5f;
+        m_arrows_w = int(m_arrows_w*1.5f);
     }
 
     const int button_h = m_arrows_w;