#-----------------------------------------------------------------------------
#OPTION(USE_VTK "Build VTK-based black boxes" OFF)
IF(USE_VTK)
  # Search VTK
  FIND_PACKAGE(VTK)
  # If vtk found
  IF(VTK_FOUND)
    MESSAGE ( STATUS "VTK FOUND - VERSION = ${VTK_MAJOR_VERSION}.${VTK_MINOR_VERSION}.${VTK_BUILD_VERSION}")
    INCLUDE(${VTK_USE_FILE})
    ADD_DEF( _USE_VTK_ )
    SET(BBTK_VTK_LIBRARIES
      #     vtkCommon 
      vtkImaging  vtkGraphics vtkRendering vtkFiltering vtkCommon vtkWidgets
      # LG : removed vtkIO because conflict with itktiff lib in ITKIO 
      ) 
    MARK_AS_ADVANCED(VTK_DIR)
  ENDIF(VTK_FOUND)
ENDIF(USE_VTK)
#-----------------------------------------------------------------------------


#-----------------------------------------------------------------------------
#OPTION(USE_ITK "Build ITK-based black boxes" OFF)
IF(USE_ITK)
  # Search ITK
  FIND_PACKAGE(ITK)
  # If itk found
  IF(ITK_FOUND)
     MESSAGE ( STATUS "ITK FOUND - VERSION = ${ITK_VERSION_MAJOR}.${ITK_VERSION_MINOR}.${ITK_VERSION_PATCH}")
    INCLUDE(${ITK_USE_FILE})
    ADD_DEF( _USE_ITK_ )
    SET(BBTK_ITK_LIBRARIES
      ITKCommon ITKIO ITKBasicFilters ITKAlgorithms
      )  
    MARK_AS_ADVANCED(ITK_DIR)
   # images compilation option 
    OPTION ( itk_IMAGE_DIM_2 "itk : Compile 2D images" ON)
    OPTION ( itk_IMAGE_DIM_3 "itk : Compile 3D images" ON)
    OPTION ( itk_IMAGE_DIM_4 "itk : Compile 4D images" ON)
    OPTION ( itk_IMAGE_TYPE_CHAR "itk : Compile char images" ON)
    OPTION ( itk_IMAGE_TYPE_UCHAR "itk : Compile unsigned char images" ON)
    OPTION ( itk_IMAGE_TYPE_SHORT "itk : Compile short images" ON)
    OPTION ( itk_IMAGE_TYPE_USHORT "itk : Compile unsigned short images" ON)
    OPTION ( itk_IMAGE_TYPE_INT "itk : Compile int images" ON)
    OPTION ( itk_IMAGE_TYPE_UINT "itk : Compile unsigned int images" ON)
    OPTION ( itk_IMAGE_TYPE_FLOAT "itk : Compile float images" ON)
    OPTION ( itk_IMAGE_TYPE_DOUBLE "itk : Compile double images" ON)
    
    IF ( itk_IMAGE_DIM_2 ) 
      ADD_DEF( BBTK_ITK_IMAGE_DIM_2 )
    ENDIF ( itk_IMAGE_DIM_2 )
    
    IF ( itk_IMAGE_DIM_3 ) 
      ADD_DEF( BBTK_ITK_IMAGE_DIM_3 )
    ENDIF ( itk_IMAGE_DIM_3 )
    
    IF ( itk_IMAGE_DIM_4 ) 
      ADD_DEF( BBTK_ITK_IMAGE_DIM_4 )
    ENDIF ( itk_IMAGE_DIM_4 )

    IF ( itk_IMAGE_TYPE_CHAR ) 
      ADD_DEF( BBTK_ITK_IMAGE_TYPE_int8_t )
    ENDIF ( itk_IMAGE_TYPE_CHAR )

    IF ( itk_IMAGE_TYPE_UCHAR ) 
      ADD_DEF( BBTK_ITK_IMAGE_TYPE_uint8_t )
    ENDIF ( itk_IMAGE_TYPE_UCHAR )
    
    IF ( itk_IMAGE_TYPE_SHORT ) 
      ADD_DEF( BBTK_ITK_IMAGE_TYPE_int16_t )
    ENDIF ( itk_IMAGE_TYPE_SHORT )
    
    IF ( itk_IMAGE_TYPE_USHORT ) 
      ADD_DEF( BBTK_ITK_IMAGE_TYPE_uint16_t )
    ENDIF ( itk_IMAGE_TYPE_USHORT )
    
    IF ( itk_IMAGE_TYPE_INT ) 
      ADD_DEF( BBTK_ITK_IMAGE_TYPE_int32_t )
    ENDIF ( itk_IMAGE_TYPE_INT )
    
    IF ( itk_IMAGE_TYPE_UINT ) 
      ADD_DEF( BBTK_ITK_IMAGE_TYPE_uint32_t )
    ENDIF ( itk_IMAGE_TYPE_UINT )
    
    IF ( itk_IMAGE_TYPE_FLOAT ) 
      ADD_DEF( BBTK_ITK_IMAGE_TYPE_float )
    ENDIF ( itk_IMAGE_TYPE_FLOAT )
    
    IF ( itk_IMAGE_TYPE_DOUBLE ) 
      ADD_DEF( BBTK_ITK_IMAGE_TYPE_double )
    ENDIF ( itk_IMAGE_TYPE_DOUBLE )
  ENDIF(ITK_FOUND)
ENDIF(USE_ITK)
#-----------------------------------------------------------------------------

#-----------------------------------------------------------------------------
#OPTION(USE_GDCM "Build GDCM-based black boxes" OFF)
IF(USE_GDCM)
  # Search GDCM
  FIND_PACKAGE(GDCM)
  # If gdcm found
  IF(GDCM_FOUND)
    INCLUDE(${GDCM_USE_FILE})
    ADD_DEF( _USE_GDCM_ )
    
    SET(BBTK_GDCM_LIBRARIES
# TO DO : USE GDCM LINK LIBRARIES !!!
      libgdcm libgdcmjpeg8 libgdcmjpeg12libgdcmjpeg16
      )
  ENDIF(GDCM_FOUND)
ENDIF(USE_GDCM)
#-----------------------------------------------------------------------------

#-----------------------------------------------------------------------------
#OPTION(USE_WXWIDGETS "Build wxWidgets-based black boxes" OFF)
IF(USE_WXWIDGETS)

IF(WIN32)
  # Search WXWIDGETS

  #  WXWINDOWS_LIBRARY         = full path to the wxWindows library and linker flags on unix
  #  CMAKE_WX_CXX_FLAGS        = compiler flags for building wxWindows 
  #  WXWINDOWS_INCLUDE_PATH    = include path of wxWindows
  SET(WXWINDOWS_USE_GL 1)

  #wxWidgets build related stuff
  SET(WXW_USE_DEBUG ON)
  SET(WXW_USE_UNICODE OFF)
  SET(WXW_USE_SHARED ON)
  SET(WXW_USE_UNIV OFF)
  SET(WXW_USE_MONO OFF)
  SET(WXW_FILE_VERSION "28")
  SET(WXW_VERSION "2.8")

  #CMake Options
  # Why forcing verbosity ?
  # SET(CMAKE_VERBOSE_MAKEFILE TRUE)

  INCLUDE (${BBTK_DIR}/BBTKFindWX_WIN)
  #
  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}${WXWIDGETS_CXX_FLAGS}")
  SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}${WXWIDGETS_EXE_LINKER_FLAGS}")
  ADD_DEFINITIONS( ${WXWIDGETS_DEFINITIONS}  )
  #
  INCLUDE_DIRECTORIES(${WXWIDGETS_INCLUDE_DIR})
  LINK_DIRECTORIES( ${WXWIDGETS_LINK_DIRECTORIES} )
  SET(THE_WXWIDGETS_LIBRARIES
    ${WXWIDGETS_LIBRARIES}     
    debug msvcrtd
    debug msvcprtd
    optimized msvcrt
    optimized msvcprt
    )
ENDIF(WIN32)
IF(UNIX)
  # GTK2
  INCLUDE(${BBTK_DIR}/BBTKFindGTK2.cmake)
  INCLUDE_DIRECTORIES(${GTK2_INCLUDE_DIRS})
  LINK_DIRECTORIES(${GTK2_LIBRARY_DIRS})
  LINK_LIBRARIES(${GTK2_LIBRARIES})
  # WX
  # LG : Do not force but use what is installed !
  # SET(wxWidgets_USE_LIBS base core gl)
  FIND_PACKAGE( wxWidgets REQUIRED) 
  INCLUDE( ${wxWidgets_USE_FILE} )
  MARK_AS_ADVANCED(wxWidgets_CONFIG_EXECUTABLE)
  SET(THE_WXWIDGETS_LIBRARIES
    ${GTK2_LIBRARIES}
    ${wxWidgets_LIBRARIES}
   )
ENDIF(UNIX)

ADD_DEF( _USE_WXWIDGETS_ )
SET(BBTK_WXWIDGETS_LIBRARIES
  ${THE_WXWIDGETS_LIBRARIES}
  )

ENDIF(USE_WXWIDGETS)
#-----------------------------------------------------------------------------



#-----------------------------------------------------------------------------
IF(USE_DOXYGEN) 
  FIND_PACKAGE(Doxygen REQUIRED)
#  MESSAGE(STATUS "Looking for doxygen... - found ${DOXYGEN}")
  #  IF(DOXYGEN)
#    
#  ELSE(DOXYGEN)
#    MESSAGE(FATAL_ERROR "Doxygen not found. Required to build the doxygen documentation")
#  ENDIF(DOXYGEN)
ENDIF(USE_DOXYGEN)
#-----------------------------------------------------------------------------


#-----------------------------------------------------------------------------
IF(USE_LATEX) 
  FIND_PACKAGE(LATEX REQUIRED)
  MESSAGE(STATUS "Looking for latex... - found ${LATEX_COMPILER}")
ENDIF(USE_LATEX) 
#-----------------------------------------------------------------------------

#-----------------------------------------------------------------------------
IF(USE_TTH) 
  FIND_FILE(LATEX_tth_CONVERTER NAME tth tth.exe PATHS . c:/Creatis/tth_exe/ ~/Creatis/tth ~/Creatis/tth_linux)
  IF (NOT LATEX_tth_CONVERTER)
    MESSAGE(FATAL_ERROR "TTH not found (LATEX_tth_CONVERTER). Required to build the HTML documentation from tex source")
  ELSE (NOT LATEX_tth_CONVERTER)
    MESSAGE(STATUS "Looking for tth... - found ${LATEX_tth_CONVERTER}")
  ENDIF(NOT LATEX_tth_CONVERTER)
  MARK_AS_ADVANCED(LATEX_tth_CONVERTER)
ENDIF(USE_TTH)
#-----------------------------------------------------------------------------