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[wxWidgets.git] / src / common / rendcmn.cpp

diff --git a/src/common/rendcmn.cpp b/src/common/rendcmn.cpp
index 77bfdde5168306426ef8841c958706716cfcfc7c..572600a9bdfea58890ffbdc5fab99426e4cf1225 100644 (file)
--- a/src/common/rendcmn.cpp
+++ b/src/common/rendcmn.cpp
@@ -25,6 +25,8 @@
 
 #ifndef WX_PRECOMP
     #include "wx/app.h"
+    #include "wx/log.h"
+    #include "wx/intl.h"
 #endif //WX_PRECOMP
 
 #include "wx/apptrait.h"
@@ -40,8 +42,8 @@
 // wxRendererPtr: auto pointer holding the global renderer
 // ----------------------------------------------------------------------------
 
-wxDECLARE_SCOPED_PTR(wxRendererNative, wxRendererPtrBase);
-wxDEFINE_SCOPED_PTR(wxRendererNative, wxRendererPtrBase);
+wxDECLARE_SCOPED_PTR(wxRendererNative, wxRendererPtrBase)
+wxDEFINE_SCOPED_PTR(wxRendererNative, wxRendererPtrBase)
 
 class wxRendererPtr : public wxRendererPtrBase
 {
@@ -61,12 +63,7 @@ public:
     }
 
     // return the global and unique wxRendererPtr
-    static wxRendererPtr& Get()
-    {
-        static wxRendererPtr s_renderer;
-
-        return s_renderer;
-    }
+    static wxRendererPtr& Get();
 
 private:
     wxRendererPtr() : wxRendererPtrBase(NULL) { m_initialized = false; }
@@ -83,9 +80,20 @@ private:
 
     bool m_initialized;
 
+    // just to suppress a gcc warning
+    friend class wxRendererPtrDummyFriend;
+
     DECLARE_NO_COPY_CLASS(wxRendererPtr)
 };
 
+// return the global and unique wxRendererPtr
+/*static*/ wxRendererPtr& wxRendererPtr::Get()
+{
+    static wxRendererPtr s_renderer;
+
+    return s_renderer;
+}
+
 #if wxUSE_DYNLIB_CLASS
 
 // ----------------------------------------------------------------------------
@@ -123,6 +131,11 @@ private:
 // wxRendererNative implementation
 // ============================================================================
 
+wxRendererNative::~wxRendererNative()
+{
+    // empty but necessary
+}
+
 // ----------------------------------------------------------------------------
 // Managing the global renderer
 // ----------------------------------------------------------------------------
@@ -171,10 +184,24 @@ wxRendererNative *wxRendererNative::Load(const wxString& name)
     if ( !pfnwxCreateRenderer )
         return NULL;
 
+    // create a renderer object
     wxRendererNative *renderer = (*pfnwxCreateRenderer)();
     if ( !renderer )
         return NULL;
 
+    // check that its version is compatible with ours
+    wxRendererVersion ver = renderer->GetVersion();
+    if ( !wxRendererVersion::IsCompatible(ver) )
+    {
+        wxLogError(_("Renderer \"%s\" has incompatible version %d.%d and couldn't be loaded."),
+                   name.c_str(), ver.version, ver.age);
+        delete renderer;
+
+        return NULL;
+    }
+
+    // finally wrap the renderer in an object which will delete it and unload
+    // the library when it is deleted and return it to the caller
     return new wxRendererFromDynLib(dll, renderer);
 }