changed handling of scene toolbar button icons

apps/opencs/view/world/scenetool.cpp

@@ -11,11 +11,6 @@ CSVWorld::SceneTool::SceneTool (SceneToolbar *parent) : QPushButton (parent)
     connect (this, SIGNAL (clicked()), this, SLOT (openRequest()));
 }
 
-void CSVWorld::SceneTool::updateIcon (const QIcon& icon)
-{
-    setIcon (icon);
-}
-
 void CSVWorld::SceneTool::openRequest()
 {
     showPanel (parentWidget()->mapToGlobal (pos()));

apps/opencs/view/world/scenetool.hpp

@@ -18,10 +18,6 @@ namespace CSVWorld
 
             virtual void showPanel (const QPoint& position) = 0;
 
-        protected slots:
-
-            void updateIcon (const QIcon& icon);
-
         private slots:
 
             void openRequest();

apps/opencs/view/world/scenetoolmode.cpp

@@ -36,6 +36,9 @@ void CSVWorld::SceneToolMode::addButton (const std::string& icon, const std::str
     mButtons.insert (std::make_pair (button, id));
 
     connect (button, SIGNAL (clicked()), this, SLOT (selected()));
+
+    if (mButtons.size()==1)
+        setIcon (button->icon());
 }
 
 void CSVWorld::SceneToolMode::selected()
@@ -47,7 +50,7 @@ void CSVWorld::SceneToolMode::selected()
     {
         mPanel->hide();
 
-        emit updateIcon (iter->first->icon());
+        setIcon (iter->first->icon());
         emit modeChanged (iter->second);
     }
 }