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