Moved the expansion of the key codes into ApplicationUsage so that help is only generated for non zero keycodes.

include/osg/ApplicationUsage

@@ -77,6 +77,8 @@ class OSG_EXPORT ApplicationUsage : public osg::Referenced
         const UsageMap& getEnvironmentalVariablesDefaults() const { return _environmentalVariablesDefaults; }
 
 
+        void addKeyboardMouseBinding(const std::string& prefix, int key, const std::string& explanation);
+        void addKeyboardMouseBinding(int key, const std::string& explanation);
         void addKeyboardMouseBinding(const std::string& option,const std::string& explanation);
 
         void setKeyboardMouseBindings(const UsageMap& usageMap) { _keyboardMouse=usageMap; }

src/osg/ApplicationUsage.cpp

@@ -18,6 +18,8 @@
 #include <osg/Math>
 #include <osg/ref_ptr>
 
+#include <sstream>
+
 using namespace osg;
 
 ApplicationUsage::ApplicationUsage(const std::string& commandLineUsage):
@@ -42,7 +44,7 @@ void ApplicationUsage::addUsageExplanation(Type type,const std::string& option,c
             addEnvironmentalVariable(option,explanation);
             break;
         case(KEYBOARD_MOUSE_BINDING):
-            addKeyboardMouseBinding(option,explanation);
+            //addKeyboardMouseBinding(option,explanation);
             break;
         default:
             break;
@@ -61,6 +63,32 @@ void ApplicationUsage::addEnvironmentalVariable(const std::string& option,const
     _environmentalVariablesDefaults[option]=defaultValue;
 }
 
+void ApplicationUsage::addKeyboardMouseBinding(const std::string& prefix, int key, const std::string& explanation)
+{
+    if (key!=0)
+    {
+        std::ostringstream ostr;
+        ostr<<prefix;
+        
+        if (key==' ')
+        {
+            ostr<<"Space";
+        }
+        else if (key!=0)
+        {
+            ostr<<char(key);
+        }
+
+        _keyboardMouse[ostr.str()]=explanation;
+    }
+}
+
+
+void ApplicationUsage::addKeyboardMouseBinding(int key,const std::string& explanation)
+{
+    addKeyboardMouseBinding("",key,explanation);
+}
+
 void ApplicationUsage::addKeyboardMouseBinding(const std::string& option,const std::string& explanation)
 {
     _keyboardMouse[option]=explanation;

src/osgViewer/HelpHandler.cpp

@@ -206,5 +206,5 @@ void HelpHandler::setUpScene(osgViewer::ViewerBase* viewer)
 
 void HelpHandler::getUsage(osg::ApplicationUsage& usage) const
 {
-    usage.addKeyboardMouseBinding("h","Onscreen help.");
+    if (_keyEventTogglesOnScreenHelp) usage.addKeyboardMouseBinding(_keyEventTogglesOnScreenHelp,"Onscreen help.");
 }

src/osgViewer/ScreenCaptureHandler.cpp

@@ -11,8 +11,6 @@
 * OpenSceneGraph Public License for more details.
 */
 
-#include <sstream>
-
 #include <osgDB/WriteFile>
 
 #include <osgViewer/Viewer>
@@ -851,17 +849,8 @@ void ScreenCaptureHandler::stopCapture()
 /** Get the keyboard and mouse usage of this manipulator.*/
 void ScreenCaptureHandler::getUsage(osg::ApplicationUsage& usage) const
 {
-    {
-        std::ostringstream ostr;
-        ostr<<char(_keyEventTakeScreenShot);
-        usage.addKeyboardMouseBinding(ostr.str(),"Take screenshot.");
-    }
-
-    {
-        std::ostringstream ostr;
-        ostr<<char(_keyEventToggleContinuousCapture);
-        usage.addKeyboardMouseBinding(ostr.str(),"Toggle continuous screen capture.");
-    }
+    usage.addKeyboardMouseBinding(_keyEventTakeScreenShot,"Take screenshot.");
+    usage.addKeyboardMouseBinding(_keyEventToggleContinuousCapture,"Toggle continuous screen capture.");
 }
 
 }

src/osgViewer/StatsHandler.cpp

@@ -1707,8 +1707,8 @@ void StatsHandler::createCameraTimeStats(osg::Vec3& pos, bool acquireGPUStats, o
 
 void StatsHandler::getUsage(osg::ApplicationUsage& usage) const
 {
-    usage.addKeyboardMouseBinding("s","On screen stats.");
-    usage.addKeyboardMouseBinding("S","Output stats to console.");
+    usage.addKeyboardMouseBinding(_keyEventTogglesOnScreenStats,"On screen stats.");
+    usage.addKeyboardMouseBinding(_keyEventPrintsOutStats,"Output stats to console.");
 }
 
 }

src/osgViewer/ViewerEventHandlers.cpp

@@ -68,9 +68,9 @@ WindowSizeHandler::WindowSizeHandler() :
 
 void WindowSizeHandler::getUsage(osg::ApplicationUsage &usage) const
 {
-    usage.addKeyboardMouseBinding(reinterpret_cast<const char*>(&_keyEventToggleFullscreen), "Toggle full screen.");
-    usage.addKeyboardMouseBinding(reinterpret_cast<const char*>(&_keyEventWindowedResolutionUp), "Increase the screen resolution (in windowed mode).");
-    usage.addKeyboardMouseBinding(reinterpret_cast<const char*>(&_keyEventWindowedResolutionDown), "Decrease the screen resolution (in windowed mode).");
+    usage.addKeyboardMouseBinding(_keyEventToggleFullscreen, "Toggle full screen.");
+    usage.addKeyboardMouseBinding(_keyEventWindowedResolutionUp, "Increase the screen resolution (in windowed mode).");
+    usage.addKeyboardMouseBinding(_keyEventWindowedResolutionDown, "Decrease the screen resolution (in windowed mode).");
 }
 
 bool WindowSizeHandler::handle(const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &aa)
@@ -308,8 +308,8 @@ ThreadingHandler::ThreadingHandler() :
 
 void ThreadingHandler::getUsage(osg::ApplicationUsage &usage) const
 {
-    usage.addKeyboardMouseBinding(reinterpret_cast<const char*>(&_keyEventChangeThreadingModel), "Toggle threading model.");
-    usage.addKeyboardMouseBinding(reinterpret_cast<const char*>(&_keyEventChangeEndBarrierPosition), "Toggle the placement of the end of frame barrier.");
+    usage.addKeyboardMouseBinding(_keyEventChangeThreadingModel, "Toggle threading model.");
+    usage.addKeyboardMouseBinding(_keyEventChangeEndBarrierPosition, "Toggle the placement of the end of frame barrier.");
 }
 
 bool ThreadingHandler::handle(const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &aa)
@@ -420,8 +420,8 @@ RecordCameraPathHandler::RecordCameraPathHandler(const std::string& filename, fl
 
 void RecordCameraPathHandler::getUsage(osg::ApplicationUsage &usage) const
 {
-    usage.addKeyboardMouseBinding(reinterpret_cast<const char*>(&_keyEventToggleRecord), "Toggle camera path recording.");
-    usage.addKeyboardMouseBinding(reinterpret_cast<const char*>(&_keyEventTogglePlayback), "Toggle camera path playback.");
+    usage.addKeyboardMouseBinding(_keyEventToggleRecord, "Toggle camera path recording.");
+    usage.addKeyboardMouseBinding(_keyEventTogglePlayback, "Toggle camera path playback.");
 }
 
 bool RecordCameraPathHandler::handle(const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &aa)
@@ -631,17 +631,8 @@ bool LODScaleHandler::handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionA
 
 void LODScaleHandler::getUsage(osg::ApplicationUsage& usage) const
 {
-    {
-        std::ostringstream ostr;
-        ostr<<char(_keyEventIncreaseLODScale);
-        usage.addKeyboardMouseBinding(ostr.str(),"Increase LODScale.");
-    }
-
-    {
-        std::ostringstream ostr;
-        ostr<<char(_keyEventDecreaseLODScale);
-        usage.addKeyboardMouseBinding(ostr.str(),"Decrease LODScale.");
-    }
+    usage.addKeyboardMouseBinding(_keyEventIncreaseLODScale,"Increase LODScale.");
+    usage.addKeyboardMouseBinding(_keyEventDecreaseLODScale,"Decrease LODScale.");
 }
 
 ToggleSyncToVBlankHandler::ToggleSyncToVBlankHandler():
@@ -696,11 +687,7 @@ bool ToggleSyncToVBlankHandler::handle(const osgGA::GUIEventAdapter& ea, osgGA::
 
 void ToggleSyncToVBlankHandler::getUsage(osg::ApplicationUsage& usage) const
 {
-    {
-        std::ostringstream ostr;
-        ostr<<char(_keyEventToggleSyncToVBlank);
-        usage.addKeyboardMouseBinding(ostr.str(),"Toggle SyncToVBlank.");
-    }
+    usage.addKeyboardMouseBinding(_keyEventToggleSyncToVBlank,"Toggle SyncToVBlank.");
 }