Added initial cut at plugin query code

applications/osgconv/CMakeLists.txt

@@ -1,7 +1,15 @@
 #this file is automatically generated 
 
 
-SET(TARGET_SRC OrientationConverter.cpp osgconv.cpp )
-SET(TARGET_H OrientationConverter.h )
+SET(TARGET_SRC
+    OrientationConverter.cpp 
+    PluginQuery.cpp
+    osgconv.cpp
+)
+SET(TARGET_H
+    OrientationConverter.h
+    PluginQuery.h
+)
+
 #### end var setup  ###
 SETUP_APPLICATION(osgconv)

applications/osgconv/PluginQuery.cpp

@@ -0,0 +1,41 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2008 Robert Osfield 
+ *
+ * This application is open source and may be redistributed and/or modified   
+ * freely and without restriction, both in commericial and non commericial applications,
+ * as long as this copyright notice is maintained.
+ * 
+ * This application is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+*/
+
+#include <osgDB/FileUtils>
+#include <osg/Version>
+
+#include "PluginQuery.h"
+
+using namespace osgDB;
+
+FileNameList osgDB::listAllAvailablePlugins()
+{
+    FileNameList pluginFiles;
+
+    std::string pluginDirectoryName = std::string("osgPlugins-")+std::string(osgGetVersion());
+    std::string fullPath = osgDB::findLibraryFile(pluginDirectoryName);
+    if (!fullPath.empty())
+    {
+        osgDB::DirectoryContents contents = getDirectoryContents(fullPath);
+        for(DirectoryContents::iterator itr = contents.begin();
+            itr != contents.end();
+            ++itr)
+        {
+            std::string::size_type pos = itr->find("osgdb_");
+            if (pos!=std::string::npos)
+            {
+                pluginFiles.push_back(fullPath + std::string("/")+*itr);
+            }
+        }
+    }
+    
+    return pluginFiles;
+}

applications/osgconv/PluginQuery.h

@@ -0,0 +1,28 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2008 Robert Osfield 
+ *
+ * This application is open source and may be redistributed and/or modified   
+ * freely and without restriction, both in commericial and non commericial applications,
+ * as long as this copyright notice is maintained.
+ * 
+ * This application is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+*/
+
+#ifndef PLUGINQUERY_H
+#define PLUGINQUERY_H
+
+#include <list>
+
+namespace osgDB
+{
+
+typedef std::list<std::string> FileNameList;
+
+
+FileNameList listAllAvailablePlugins();
+
+
+}
+
+#endif

applications/osgconv/osgconv.cpp

@@ -28,6 +28,7 @@
 #include <iostream>
 
 #include "OrientationConverter.h"
+#include "PluginQuery.h"
 
 typedef std::vector<std::string> FileNameList;
 
@@ -506,6 +507,7 @@ int main( int argc, char **argv )
     arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
     arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display command line parameters");
     arguments.getApplicationUsage()->addCommandLineOption("--help-env","Display environmental variables available");
+    arguments.getApplicationUsage()->addCommandLineOption("--fmts","List supported file formats");
 
 
     // if user request help write it out to cout.
@@ -522,6 +524,18 @@ int main( int argc, char **argv )
         return 1;
     }
     
+    if (arguments.read("--fmts"))
+    {
+        osgDB::FileNameList plugins = osgDB::listAllAvailablePlugins();
+        for(osgDB::FileNameList::iterator itr = plugins.begin();
+            itr != plugins.end();
+            ++itr)
+        {
+            std::cout<<"Plugin "<<*itr<<std::endl;
+        }
+        return 1;
+    }    
+    
     if (arguments.argc()<=1)
     {
         arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);