# This module defines

# OSG_LIBRARY
# OSG_FOUND, if false, do not try to link to osg
# OSG_INCLUDE_DIRS, where to find the headers
# OSG_INCLUDE_DIR, where to find the source headers
# OSG_GEN_INCLUDE_DIR, where to find the generated headers

# to use this module, set variables to point to the osg build
# directory, and source directory, respectively
# OSGDIR or OSG_SOURCE_DIR: osg source directory, typically OpenSceneGraph
# OSG_DIR or OSG_BUILD_DIR: osg build directory, place in which you've
#    built osg via cmake 

# Header files are presumed to be included like
# #include <osg/PositionAttitudeTransform>
# #include <osgUtil/SceneView>

###### headers ######

MACRO( FIND_OSG_INCLUDE THIS_OSG_INCLUDE_DIR THIS_OSG_INCLUDE_FILE )

FIND_PATH( ${THIS_OSG_INCLUDE_DIR} ${THIS_OSG_INCLUDE_FILE}
    PATHS
        $ENV{OSG_SOURCE_DIR}
        $ENV{OSGDIR}
        $ENV{OSG_DIR}
        /usr/local/
        /usr/
        /sw/ # Fink
        /opt/local/ # DarwinPorts
        /opt/csw/ # Blastwave
        /opt/
        [HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Session\ Manager\\Environment;OSG_ROOT]/
        ~/Library/Frameworks
        /Library/Frameworks
    PATH_SUFFIXES
        include
)

ENDMACRO( FIND_OSG_INCLUDE THIS_OSG_INCLUDE_DIR THIS_OSG_INCLUDE_FILE )

FIND_OSG_INCLUDE( OSG_GEN_INCLUDE_DIR   osg/Config )
FIND_OSG_INCLUDE( OSG_INCLUDE_DIR       osg/Node )

###### libraries ######

MACRO( FIND_OSG_LIBRARY MYLIBRARY MYLIBRARYNAME )

FIND_LIBRARY(${MYLIBRARY}
    NAMES
        ${MYLIBRARYNAME}
    PATHS
        $ENV{OSG_BUILD_DIR}
        $ENV{OSG_DIR}
        $ENV{OSGDIR}
        $ENV{OSG_ROOT}
        ~/Library/Frameworks
        /Library/Frameworks
        /usr/local
        /usr/
        /sw/
        /opt/local
        /opt/csw
        /opt
        [HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Session\ Manager\\Environment;OSG_ROOT]/lib
        /usr/freeware/lib64
    PATH_SUFFIXES
        lib
        build/lib
        Build/lib
     )

ENDMACRO(FIND_OSG_LIBRARY LIBRARY LIBRARYNAME)

FIND_OSG_LIBRARY( OSG_LIBRARY osg )
FIND_OSG_LIBRARY( OSGGA_LIBRARY osgGA )
FIND_OSG_LIBRARY( OSGUTIL_LIBRARY osgUtil )
FIND_OSG_LIBRARY( OSGDB_LIBRARY osgDB )
FIND_OSG_LIBRARY( OSGTEXT_LIBRARY osgText )
FIND_OSG_LIBRARY( OSGTERRAIN_LIBRARY osgTerrain )
FIND_OSG_LIBRARY( OSGFX_LIBRARY osgFX )
FIND_OSG_LIBRARY( OSGSIM_LIBRARY osgSim )
FIND_OSG_LIBRARY( OSGVIEWER_LIBRARY osgViewer )

SET( OSG_FOUND "NO" )
IF( OSG_LIBRARY AND OSG_INCLUDE_DIR AND OSG_GEN_INCLUDE_DIR )
    SET( OSG_FOUND "YES" )
    SET( OSG_INCLUDE_DIRS ${OSG_INCLUDE_DIR} ${OSG_GEN_INCLUDE_DIR} )
    GET_FILENAME_COMPONENT( OSG_LIBRARIES_DIR ${OSG_LIBRARY} PATH )
ENDIF( OSG_LIBRARY AND OSG_INCLUDE_DIR AND OSG_GEN_INCLUDE_DIR )