continuous rendering while glQueue isn't empty in PartialRenderPolicy.

base/threaded_list.hpp

@@ -108,7 +108,7 @@ public:
     return m_list.size();
   }
 
-  bool Empty()
+  bool Empty() const
   {
     threads::ConditionGuard g(m_Cond);
     return m_list.empty();

map/framework.cpp

@@ -244,7 +244,7 @@ void Framework<TModel>::SetMaxWorldRect()
 template <typename TModel>
 bool Framework<TModel>::NeedRedraw() const
 {
-  return m_windowHandle->needRedraw();
+  return m_windowHandle->needRedraw() || m_renderPolicy->NeedRedraw();
 }
 
 template <typename TModel>

map/partial_render_policy.cpp

@@ -88,4 +88,8 @@ void PartialRenderPolicy::DrawFrame(shared_ptr<PaintEvent> const & paintEvent,
   RenderPolicyMT::DrawFrame(paintEvent, screenBase);
 
 //  OGLCHECK(glFinish());
+
+bool PartialRenderPolicy::NeedRedraw() const
+{
+  return !m_glQueue.Empty();
 }

map/partial_render_policy.hpp

@@ -29,4 +29,6 @@ public:
 
   void DrawFrame(shared_ptr<PaintEvent> const & paintEvent,
                  ScreenBase const & screenBase);
+
+  bool NeedRedraw() const;
 };

map/render_policy.cpp

@@ -98,3 +98,8 @@ bool RenderPolicy::DoSupportRotation() const
 {
   return m_doSupportRotation;
 }
+
+bool RenderPolicy::NeedRedraw() const
+{
+  return false;
+}

map/render_policy.hpp

@@ -76,4 +76,6 @@ public:
   /// @}
 
   bool DoSupportRotation() const;
+
+  bool NeedRedraw() const;
 };