gdcmPython/CMakeLists.txt

   1 # gdcm Python wrapping stuff:
   2
   3 INCLUDE_DIRECTORIES(
   4   ${GDCM_SOURCE_DIR}/src
   5   ${PYTHON_INCLUDE_PATH}
   6   ${GDCM_BINARY_DIR}/
   7 )
   8
   9 #-----------------------------------------------------------------------------
  10 # SWIG Wrapping
  11 #
  12
  13 # CMake 2.0 will fully support Swig wrapping so split based on cmake version:
  14
  15 IF(${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 1.9)
  16
  17   FIND_PACKAGE(SWIG REQUIRED)
  18   INCLUDE(${SWIG_USE_FILE})
  19
  20   #INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
  21   #SET(CMAKE_SWIG_FLAGS "")
  22
  23   #SET_SOURCE_FILES_PROPERTIES(gdcm.i PROPERTIES PYTHON ON)
  24   SET_SOURCE_FILES_PROPERTIES(gdcm.i PROPERTIES CPLUSPLUS ON)
  25   SET_SOURCE_FILES_PROPERTIES(gdcm.i PROPERTIES SWIG_FLAGS "-includeall")
  26   SWIG_ADD_MODULE(gdcm python gdcm.i)  #gdcm_wrap.cxx
  27   SWIG_LINK_LIBRARIES(gdcm gdcm ${PYTHON_LIBRARIES})
  28
  29   #SWIG_GET_EXTRA_OUTPUT_FILES(python foobar "/usr/" "gdcm" )
  30   #MESSAGE(FATAL_ERROR ${swig_generated_file_fullname})
  31   #MESSAGE(FATAL_ERROR ${swig_source_file_fullname})
  32
  33   # Swig creates a gdcm.py file put it in the right place, if only cmake
  34   # was able to do stuff properly ...
  35   ADD_CUSTOM_TARGET( CMAKE_S____ ALL)
  36   ADD_CUSTOM_COMMAND(
  37     TARGET CMAKE_S____
  38     POST_BUILD
  39     COMMAND ${CMAKE_COMMAND}
  40     ARGS -E copy
  41       ${GDCM_BINARY_DIR}/gdcmPython/gdcm.py
  42       ${GDCM_BINARY_DIR}/bin/gdcm.py
  43   )
  44
  45 ELSE(${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 1.9)
  46
  47   # As of 09/10/2003 there was no FindSWIG.cmake
  48   # later we should use SWIG instead of swig
  49   FIND_PROGRAM(SWIG_EXECUTABLE
  50     NAMES swig-1.3 swig
  51   )
  52
  53   IF(NOT SWIG_EXECUTABLE)
  54     MESSAGE(FATAL_ERROR "Swig could not be found wrapping is impossible")
  55   ENDIF(NOT SWIG_EXECUTABLE)
  56
  57   # Build our custom command :
  58   ADD_CUSTOM_COMMAND(
  59     OUTPUT    ${GDCM_BINARY_DIR}/gdcmPython/gdcm_wrap.cxx
  60     COMMAND   ${SWIG_EXECUTABLE}
  61     ARGS      -python -c++ -I${GDCM_SOURCE_DIR}/src -o
  62               ${GDCM_BINARY_DIR}/gdcmPython/gdcm_wrap.cxx
  63               ${GDCM_SOURCE_DIR}/gdcmPython/gdcm.i
  64     DEPENDS   ${GDCM_SOURCE_DIR}/gdcmPython/gdcm.i
  65     COMMENT   "Generating gdcm_wrap.cxx/gdcm.py based on gdcm.i"
  66   )
  67   # Since the file gdcm_wrap.cxx does not exist, mark it as GENERATED:
  68   SET_SOURCE_FILES_PROPERTIES(${GDCM_BINARY_DIR}/gdcmPython/gdcm_wrap.cxx GENERATED)
  69
  70   ADD_LIBRARY(pygdcm gdcm_wrap.cxx)
  71   TARGET_LINK_LIBRARIES(pygdcm
  72     ${PYTHON_LIBRARY}
  73     gdcm
  74   )
  75   # http://www.cmake.org/pipermail/cmake/2003-August/004190.html
  76   #SET_TARGET_PROPERTIES(pygdcm PROPERTIES PREFIX "_")
  77
  78   # This swig command will also outputs gdcm.py :
  79   SET_SOURCE_FILES_PROPERTIES(${GDCM_BINARY_DIR}/gdcmPython/gdcm.py GENERATED)
  80
  81   # Instead of a simple copy operation let create our own gdcm.py file:
  82   # First read what swig dumped:
  83   IF(EXISTS ${GDCM_BINARY_DIR}/gdcmPython/gdcm.py)
  84     FILE(READ ${GDCM_BINARY_DIR}/gdcmPython/gdcm.py SWIG_GDCM_PY)
  85   ENDIF(EXISTS ${GDCM_BINARY_DIR}/gdcmPython/gdcm.py)
  86
  87   # Then create the gdcm.py = gdcmVersion.py + gdcm.py (swig) file:
  88   FILE(WRITE ${GDCM_BINARY_DIR}/bin/gdcmVersion.py
  89     "import os\n"
  90     "gdcmVERSION=\"${GDCM_VERSION}\"\n"
  91     "GDCM_DATA_PATH=\"${GDCM_DATA_ROOT}\"\n\n"
  92     ${SWIG_GDCM_PY}
  93     )
  94
  95   # Seems like they want instead a file called gdcmPython.py
  96   # Thus add the custom command to copy it to proper location:
  97 #  ADD_CUSTOM_COMMAND(
  98 #    TARGET pygdcm
  99 #    POST_BUILD
 100 #    COMMAND ${CMAKE_COMMAND}
 101 #    ARGS -E copy
 102 #      ${GDCM_BINARY_DIR}/bin/gdcm.py
 103 #      ${GDCM_BINARY_DIR}/bin/gdcmPython.py
 104 #  )
 105
 106   # Here comes the hack to rename the library to a more 'swig' compliant scheme"
 107   SET(LIB_NAME ${CMAKE_SHARED_LIBRARY_PREFIX}pygdcm${CMAKE_SHARED_LIBRARY_SUFFIX})
 108   SET(EXE_DIR ${GDCM_BINARY_DIR}/Executable)
 109   IF(EXECUTABLE_OUTPUT_PATH)
 110     SET(EXE_DIR ${EXECUTABLE_OUTPUT_PATH})
 111   ENDIF(EXECUTABLE_OUTPUT_PATH)
 112   SET(LIB_DIR ${GDCM_BINARY_DIR}/Library/Shared)
 113   IF(LIBRARY_OUTPUT_PATH)
 114     SET(LIB_DIR ${LIBRARY_OUTPUT_PATH})
 115   ENDIF(LIBRARY_OUTPUT_PATH)
 116
 117   IF(WIN32 OR APPLE)
 118     SET(SHARED_MUST_BE_IN_EXE_DIR 1)
 119   ENDIF(WIN32 OR APPLE)
 120
 121   IF(NOT SHARED_MUST_BE_IN_EXE_DIR)
 122     SET(EXE_DIR ${LIB_DIR})
 123   ENDIF(NOT SHARED_MUST_BE_IN_EXE_DIR)
 124
 125   ADD_CUSTOM_COMMAND(
 126     TARGET pygdcm
 127     POST_BUILD
 128     COMMAND ${CMAKE_COMMAND} ARGS -E copy
 129     ${LIB_DIR}/${CMAKE_CFG_INTDIR}/${LIB_NAME}
 130     ${EXE_DIR}/${CMAKE_CFG_INTDIR}/_gdcm${CMAKE_SHARED_LIBRARY_SUFFIX}
 131     )
 132
 133   # Remove temporary (lib)pygdcm(.so .dll) library:
 134 #  ADD_CUSTOM_COMMAND(
 135 #    TARGET pygdcm
 136 #    POST_BUILD
 137 #    COMMAND ${CMAKE_COMMAND}
 138 #    ARGS -E remove ${LIB_DIR}/${CMAKE_CFG_INTDIR}/${LIB_NAME}
 139 #  )
 140
 141   # where are library stored ?
 142 #  SET(GDCM_LIB_DIR ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR})
 143 #  ADD_CUSTOM_COMMAND(
 144 #    TARGET pygdcm
 145 #    POST_BUILD
 146 #    COMMAND ${CMAKE_COMMAND}
 147 #    ARGS -E copy
 148 #      ${EXECUTABLE_OUTPUT_PATH}/${CMAKE_CFG_INTDIR}/${MY_LIB_NAME}${CMAKE_SHLIB_SUFFIX}
 149 #      ${EXECUTABLE_OUTPUT_PATH}/${CMAKE_CFG_INTDIR}/vtkXY.pvm
 150 #    TARGET vtkXY
 151 #  )
 152
 153 ENDIF(${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 1.9)
 154
 155
 156 #-----------------------------------------------------------------------------
 157 # VTK Wrapping
 158 #
 159 IF(GDCM_VTK)
 160   INCLUDE_DIRECTORIES(
 161     ${GDCM_SOURCE_DIR}/vtk
 162   )
 163
 164   SET(vtkgdcmPython_la_SOURCES
 165       ${GDCM_SOURCE_DIR}/vtk/vtkGdcmReader.cxx
 166   )
 167   SET_SOURCE_FILES_PROPERTIES(vtkGdcmReaderPython.cxx GENERATED)
 168
 169   # Configure Python module, which is the plugin itself
 170   IF (GDCM_WRAP_PYTHON)
 171     IF(NOT VTK_WRAP_PYTHON)
 172       MESSAGE(FATAL_ERROR "Can't build gdcm python wrapping if VTK_WRAP_PYTHON is OFF" )
 173     ENDIF(NOT VTK_WRAP_PYTHON)
 174     VTK_WRAP_PYTHON2(vtkgdcmPython gdcmWrapSOURCES
 175                    ${vtkgdcmPython_la_SOURCES})
 176     # The C++ files must be made into a C++ library
 177     ADD_LIBRARY(vtkgdcmPython SHARED ${gdcmWrapSOURCES})  #MODULE on apple ?
 178     # set the libraries to link against
 179     #SET_TARGET_PROPERTIES(${foobar} PROPERTIES PREFIX "")
 180
 181     #GET_TARGET_PROPERTY(swig_gdcm_fullpath "${SWIG_MODULE_gdcm_REAL_NAME}" LOCATION)
 182     TARGET_LINK_LIBRARIES (vtkgdcmPython
 183                            vtkgdcm
 184                            vtkCommonPython
 185                            vtkIOPython)
 186   ENDIF (GDCM_WRAP_PYTHON)
 187 ENDIF(GDCM_VTK)
 188
 189   # generate a setup.py according to VTK installation
 190   # put it in subdir in order to not override old one
 191
 192   GET_FILENAME_COMPONENT(VTKPATH ${VTK_DIR}/../../ ABSOLUTE)
 193   CONFIGURE_FILE(
 194       ${GDCM_SOURCE_DIR}/gdcmPython/setup.py.in
 195       ${GDCM_BINARY_DIR}/setup.py
 196   )
 197
 198 #-----------------------------------------------------------------------------
 199 # Install stuff:
 200
 201 # Cmake cannot handle installing since python wants stuff to be installed
 202 # in /usr/lib/pythonx.x/site-package and not a a std /usr/lib
 203 # Thus generate a setup.py file using distutils
 204
 205 # Create a gdcm.pth file:
 206
 207 FILE(WRITE ${GDCM_BINARY_DIR}/gdcmPython/gdcm.pth
 208     "gdcmPython\n"
 209     )
 210
 211 FILE(WRITE ${GDCM_BINARY_DIR}/gdcmPython/__init__.py
 212     "import gdcm\n"
 213     )
 214
 215 IF(GDCM_VTK)
 216   FILE(APPEND ${GDCM_BINARY_DIR}/gdcmPython/__init__.py
 217     "import os\n"
 218     "if os.name == 'posix':\n"
 219     "  from libvtkgdcmPython import *\n"
 220     "else:\n"
 221     "  from vtkgdcmPython import *\n"
 222     )
 223 ENDIF(GDCM_VTK)
 224
 225 #-----------------------------------------------------------------------------
 226 # Add test from demo subdir:
 227
 228 SUBDIRS(demo)