music and sound volume can be modified in options. much left to do : make the gauge nicer-looking, save value to file, load value from file, make the slider start at an actual value, ...

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/branches/irrlicht@3390 178a84e3-b1eb-0310-8ba1-8eac791a3b58

data/CREDITS

@@ -76,7 +76,6 @@ Benjamin Arnaudet
 MacIO
 - Cave X arena
 
-
 Ivar ten Cate (Varivar)
 - Old mine track
 - Tux Tollway track

src/gui/state_manager.cpp

@@ -1,4 +1,6 @@
 
+#include "audio/sound_manager.hpp"
+#include "audio/sfx_manager.hpp"
 #include "gui/state_manager.hpp"
 #include "gui/engine.hpp"
 #include "gui/widget.hpp"
@@ -284,6 +286,25 @@ namespace StateManager
             else if(selection == "players") replaceTopMostMenu("options_players.stkgui");
             else if(selection == "controls") replaceTopMostMenu("options_input.stkgui");
         }
+        else if(name == "music_volume")
+        {
+            GUIEngine::GaugeWidget* w = dynamic_cast<GUIEngine::GaugeWidget*>
+                (GUIEngine::getCurrentScreen()->getWidget("music_volume"));
+            assert(w != NULL);
+            
+            // TODO - save value to file, load value from file, make the slider start at an actual value
+            sound_manager->setMasterMusicVolume( w->getValue() );
+        }
+        else if(name == "sfx_volume")
+        {
+            GUIEngine::GaugeWidget* w = dynamic_cast<GUIEngine::GaugeWidget*>
+                (GUIEngine::getCurrentScreen()->getWidget("sfx_volume"));
+            assert(w != NULL);
+            
+            // TODO - save value to file, load value from file, make the slider start at an actual value
+            sfx_manager->setMasterSFXVolume( w->getValue() );
+        }
+
     }
 
     /**

src/gui/widget.cpp

@@ -266,6 +266,13 @@ void GaugeWidget::add()
     m_element->setTabOrder(id);
     m_element->setTabGroup(false);
 }
+// -----------------------------------------------------------------------------
+float GaugeWidget::getValue()
+{
+    IGUIScrollBar* sb = dynamic_cast<IGUIScrollBar*>(m_element);
+    assert(sb != NULL);
+    return (float)sb->getPos() / sb->getMax();
+}
 
 #if 0
 #pragma mark -

src/gui/widget.hpp

@@ -171,6 +171,7 @@ namespace GUIEngine
         void add();
     public:
         virtual ~GaugeWidget() {}
+        float getValue();
     };
     
     class SpinnerWidget : public Widget