Fixed several VS compilation problems.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/branches/irrlicht@3776 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/guiengine/event_handler.cpp

@@ -15,11 +15,13 @@
 //  along with this program; if not, write to the Free Software
 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
-#include "guiengine/abstract_state_manager.hpp"
 #include "guiengine/event_handler.hpp"
+
+#include "guiengine/abstract_state_manager.hpp"
 #include "guiengine/engine.hpp"
 #include "guiengine/modaldialog.hpp"
 #include "guiengine/screen.hpp"
+#include "guiengine/widget.hpp"
 #include "input/input_manager.hpp"
 
 using GUIEngine::EventHandler;
@@ -136,7 +138,7 @@ bool EventHandler::onGUIEvent(const SEvent& event)
     return false;        
 }
 
-bool EventHandler::onWidgetActivated(Widget* w)
+bool EventHandler::onWidgetActivated(GUIEngine::Widget* w)
 {
     if(ModalDialog::isADialogActive() && w->m_event_handler == NULL)
     {

src/guiengine/widgets/ribbon_grid_widget.cpp

@@ -20,6 +20,10 @@
 #include "io/file_manager.hpp"
 using namespace GUIEngine;
 
+#ifndef round
+#  define round(x)  (floor(x+0.5f))
+#endif
+
 RibbonGridWidget::RibbonGridWidget(const bool combo, const int max_rows)
 {
     m_scroll_offset = 0;

src/guiengine/widgets/ribbon_widget.cpp

@@ -15,12 +15,17 @@
 //  along with this program; if not, write to the Free Software
 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
+#include "guiengine/widgets/ribbon_widget.hpp"
+
 #include "guiengine/engine.hpp"
 #include "guiengine/my_button.hpp"
-#include "guiengine/widgets/ribbon_widget.hpp"
 #include "io/file_manager.hpp"
 using namespace GUIEngine;
 
+#ifndef round
+#  define round(x)  (floor(x+0.5f))
+#endif
+
 RibbonWidget::RibbonWidget(const RibbonType type)
 {
     m_selection = 0;