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   # We need to pass that to swig to be sure all modules are generated in the proper dir
  18   SET(CMAKE_SWIG_FLAGS "-outdir ${GDCM_BINARY_DIR}/bin")
  19   # Looks like a bug to me in cmake 2.0.x:
  20   SEPARATE_ARGUMENTS(CMAKE_SWIG_FLAGS)
  21
  22   FIND_PACKAGE(SWIG REQUIRED)
  23   INCLUDE(${SWIG_USE_FILE})
  24
  25   #SET_SOURCE_FILES_PROPERTIES(gdcm.i PROPERTIES PYTHON ON)
  26   SET_SOURCE_FILES_PROPERTIES(gdcm.i PROPERTIES CPLUSPLUS ON)
  27   # Setting SWIG_FLAGS to "-includeall" at the following line looks like
  28   # a bad idea since swig tries to reculsively include all the referenced
  29   # files, "including" the C++ <sstream>, <list>, <map>... Of course swig
  30   # has no way of finding the path to those files (unless it is told by
  31   # cmake) since they are related to the compiler installation layout.
  32   # Anyhow, since this inclusion recursion is not necessary, just don't
  33   # do it.
  34   # Note: apparently the line is required in order to avoid a NOTFOUND
  35   #       as argument of swig on invocation of make.
  36   SET_SOURCE_FILES_PROPERTIES(gdcm.i PROPERTIES SWIG_FLAGS "")
  37   SWIG_ADD_MODULE(gdcm python gdcm.i)  #gdcm_wrap.cxx
  38   SWIG_LINK_LIBRARIES(gdcm gdcm ${PYTHON_LIBRARIES})
  39
  40   SET(GDCM_CXX_FLAGS ${CMAKE_SWIG_FLAGS})
  41   # Get rid of -Wall / -W / -pedantic if exist
  42   SET(CMAKE_CXX_FLAGS "")
  43   # I guess I need to put them back on the this file:
  44   SET_SOURCE_FILES_PROPERTIES(${GDCM_BINARY_DIR}/gdcmPython/gdcm_wrap.cxx
  45                               PROPERTIES COMPILE_FLAGS "")
  46 #  SET_TARGET_PROPERTIES(${GDCM_BINARY_DIR}/gdcmPython/gdcm_wrap.cxx
  47 #                        PROPERTIES CMAKE_CXX_FLAGS "-foo")
  48
  49 ELSE(${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 1.9)
  50
  51   # As of 09/10/2003 there was no FindSWIG.cmake
  52   # later we should use SWIG instead of swig
  53   FIND_PROGRAM(SWIG_EXECUTABLE
  54     NAMES swig-1.3 swig
  55   )
  56
  57   IF(NOT SWIG_EXECUTABLE)
  58     MESSAGE(FATAL_ERROR "Swig could not be found wrapping is impossible")
  59   ENDIF(NOT SWIG_EXECUTABLE)
  60
  61   # Build our custom command :
  62   ADD_CUSTOM_COMMAND(
  63     OUTPUT    ${GDCM_BINARY_DIR}/gdcmPython/gdcm_wrap.cxx
  64     COMMAND   ${SWIG_EXECUTABLE}
  65     ARGS      -python -c++ -I${GDCM_SOURCE_DIR}/src -o
  66               ${GDCM_BINARY_DIR}/gdcmPython/gdcm_wrap.cxx
  67               ${GDCM_SOURCE_DIR}/gdcmPython/gdcm.i
  68     DEPENDS   ${GDCM_SOURCE_DIR}/gdcmPython/gdcm.i
  69     COMMENT   "Generating gdcm_wrap.cxx/gdcm.py based on gdcm.i"
  70   )
  71   # Since the file gdcm_wrap.cxx does not exist, mark it as GENERATED:
  72   SET_SOURCE_FILES_PROPERTIES(${GDCM_BINARY_DIR}/gdcmPython/gdcm_wrap.cxx GENERATED)
  73
  74   ADD_LIBRARY(pygdcm gdcm_wrap.cxx)
  75   TARGET_LINK_LIBRARIES(pygdcm
  76     ${PYTHON_LIBRARY}
  77     gdcm
  78   )
  79   # http://www.cmake.org/pipermail/cmake/2003-August/004190.html
  80   #SET_TARGET_PROPERTIES(pygdcm PROPERTIES PREFIX "_")
  81
  82   # This swig command will also outputs gdcm.py :
  83   SET_SOURCE_FILES_PROPERTIES(${GDCM_BINARY_DIR}/gdcmPython/gdcm.py GENERATED)
  84
  85   # Instead of a simple copy operation let create our own gdcm.py file:
  86   # First read what swig dumped:
  87   IF(EXISTS ${GDCM_BINARY_DIR}/gdcmPython/gdcm.py)
  88     FILE(READ ${GDCM_BINARY_DIR}/gdcmPython/gdcm.py SWIG_GDCM_PY)
  89   ENDIF(EXISTS ${GDCM_BINARY_DIR}/gdcmPython/gdcm.py)
  90
  91   # Then create the gdcm.py = gdcmVersion.py + gdcm.py (swig) file:
  92   FILE(WRITE ${GDCM_BINARY_DIR}/bin/gdcmVersion.py
  93     "import os\n"
  94     "gdcmVERSION=\"${GDCM_VERSION}\"\n"
  95     "GDCM_DATA_PATH=\"${GDCM_DATA_ROOT}\"\n\n"
  96     ${SWIG_GDCM_PY}
  97     )
  98
  99   # Seems like they want instead a file called gdcmPython.py
 100   # Thus add the custom command to copy it to proper location:
 101 #  ADD_CUSTOM_COMMAND(
 102 #    TARGET pygdcm
 103 #    POST_BUILD
 104 #    COMMAND ${CMAKE_COMMAND}
 105 #    ARGS -E copy
 106 #      ${GDCM_BINARY_DIR}/bin/gdcm.py
 107 #      ${GDCM_BINARY_DIR}/bin/gdcmPython.py
 108 #  )
 109
 110   # Here comes the hack to rename the library to a more 'swig' compliant scheme"
 111   SET(LIB_NAME ${CMAKE_SHARED_LIBRARY_PREFIX}pygdcm${CMAKE_SHARED_LIBRARY_SUFFIX})
 112   SET(EXE_DIR ${GDCM_BINARY_DIR}/Executable)
 113   IF(EXECUTABLE_OUTPUT_PATH)
 114     SET(EXE_DIR ${EXECUTABLE_OUTPUT_PATH})
 115   ENDIF(EXECUTABLE_OUTPUT_PATH)
 116   SET(LIB_DIR ${GDCM_BINARY_DIR}/Library/Shared)
 117   IF(LIBRARY_OUTPUT_PATH)
 118     SET(LIB_DIR ${LIBRARY_OUTPUT_PATH})
 119   ENDIF(LIBRARY_OUTPUT_PATH)
 120
 121   IF(WIN32 OR APPLE)
 122     SET(SHARED_MUST_BE_IN_EXE_DIR 1)
 123   ENDIF(WIN32 OR APPLE)
 124
 125   IF(NOT SHARED_MUST_BE_IN_EXE_DIR)
 126     SET(EXE_DIR ${LIB_DIR})
 127   ENDIF(NOT SHARED_MUST_BE_IN_EXE_DIR)
 128
 129   ADD_CUSTOM_COMMAND(
 130     TARGET pygdcm
 131     POST_BUILD
 132     COMMAND ${CMAKE_COMMAND} ARGS -E copy
 133     ${LIB_DIR}/${CMAKE_CFG_INTDIR}/${LIB_NAME}
 134     ${EXE_DIR}/${CMAKE_CFG_INTDIR}/_gdcm${CMAKE_SHARED_LIBRARY_SUFFIX}
 135     )
 136
 137   # Remove temporary (lib)pygdcm(.so .dll) library:
 138 #  ADD_CUSTOM_COMMAND(
 139 #    TARGET pygdcm
 140 #    POST_BUILD
 141 #    COMMAND ${CMAKE_COMMAND}
 142 #    ARGS -E remove ${LIB_DIR}/${CMAKE_CFG_INTDIR}/${LIB_NAME}
 143 #  )
 144
 145   # where are library stored ?
 146 #  SET(GDCM_LIB_DIR ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR})
 147 #  ADD_CUSTOM_COMMAND(
 148 #    TARGET pygdcm
 149 #    POST_BUILD
 150 #    COMMAND ${CMAKE_COMMAND}
 151 #    ARGS -E copy
 152 #      ${EXECUTABLE_OUTPUT_PATH}/${CMAKE_CFG_INTDIR}/${MY_LIB_NAME}${CMAKE_SHLIB_SUFFIX}
 153 #      ${EXECUTABLE_OUTPUT_PATH}/${CMAKE_CFG_INTDIR}/vtkXY.pvm
 154 #    TARGET vtkXY
 155 #  )
 156
 157 ENDIF(${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 1.9)
 158
 159
 160 #-----------------------------------------------------------------------------
 161 # VTK Wrapping
 162 #
 163 IF(GDCM_VTK)
 164   # Include the VTK library
 165   INCLUDE(${VTK_USE_FILE})
 166
 167   INCLUDE_DIRECTORIES(
 168     ${GDCM_SOURCE_DIR}/vtk
 169   )
 170
 171   SET(vtkgdcmPython_la_SOURCES
 172       ${GDCM_SOURCE_DIR}/vtk/vtkGdcmReader.cxx
 173   )
 174   SET_SOURCE_FILES_PROPERTIES(vtkGdcmReaderPython.cxx GENERATED)
 175
 176   # Configure Python module, which is the plugin itself
 177   IF (GDCM_WRAP_PYTHON)
 178     IF(NOT VTK_WRAP_PYTHON)
 179       MESSAGE(FATAL_ERROR "Can't build gdcm python wrapping if VTK_WRAP_PYTHON is OFF" )
 180     ENDIF(NOT VTK_WRAP_PYTHON)
 181     VTK_WRAP_PYTHON2(vtkgdcmPython gdcmWrapSOURCES
 182                    ${vtkgdcmPython_la_SOURCES})
 183     # The C++ files must be made into a C++ library
 184     ADD_LIBRARY(vtkgdcmPython SHARED ${gdcmWrapSOURCES})  #MODULE on apple ?
 185     # set the libraries to link against
 186     #SET_TARGET_PROPERTIES(${foobar} PROPERTIES PREFIX "")
 187
 188     #GET_TARGET_PROPERTY(swig_gdcm_fullpath "${SWIG_MODULE_gdcm_REAL_NAME}" LOCATION)
 189     TARGET_LINK_LIBRARIES (vtkgdcmPython
 190                            vtkgdcm
 191                            vtkCommonPython
 192                            vtkIOPython)
 193   ENDIF (GDCM_WRAP_PYTHON)
 194 ENDIF(GDCM_VTK)
 195
 196   # generate a setup.py according to VTK installation
 197   # put it in subdir in order to not override old one
 198
 199   GET_FILENAME_COMPONENT(VTKPATH ${VTK_DIR}/../../ ABSOLUTE)
 200   CONFIGURE_FILE(
 201       ${GDCM_SOURCE_DIR}/gdcmPython/setup.py.in
 202       ${GDCM_BINARY_DIR}/setup.py
 203   )
 204
 205 #-----------------------------------------------------------------------------
 206 # Install stuff:
 207
 208 # Cmake cannot handle installing since python wants stuff to be installed
 209 # in /usr/lib/pythonx.x/site-package and not a a std /usr/lib
 210 # Thus generate a setup.py file using distutils
 211
 212 # Create a gdcm.pth file:
 213
 214 FILE(WRITE ${GDCM_BINARY_DIR}/gdcmPython/gdcm.pth
 215     "gdcmPython\n"
 216     )
 217
 218 FILE(WRITE ${GDCM_BINARY_DIR}/gdcmPython/__init__.py
 219     "import gdcm\n"
 220     )
 221
 222 IF(GDCM_VTK)
 223   FILE(APPEND ${GDCM_BINARY_DIR}/gdcmPython/__init__.py
 224     "import os\n"
 225     "if os.name == 'posix':\n"
 226     "  from libvtkgdcmPython import *\n"
 227     "else:\n"
 228     "  from vtkgdcmPython import *\n"
 229     )
 230 ENDIF(GDCM_VTK)
 231
 232 #-----------------------------------------------------------------------------
 233 # Add test from demo subdir:
 234
 235 SUBDIRS(demo)