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   # Setting SWIG_FLAGS to "-includeall" at the following line looks like
  26   # a bad idea since swig tries to reculsively include all the referenced
  27   # files, "including" the C++ <sstream>, <list>, <map>... Of course swig
  28   # has no way of finding the path to those files (unless it is told by
  29   # cmake) since they are related to the compiler installation layout.
  30   # Anyhow, since this inclusion recursion is not necessary, just don't
  31   # do it.
  32   # Note: apparently the line is required in order to avoid a NOTFOUND
  33   #       as argument of swig on invocation of make.
  34   SET_SOURCE_FILES_PROPERTIES(gdcm.i PROPERTIES SWIG_FLAGS "")
  35   SWIG_ADD_MODULE(gdcm python gdcm.i)  #gdcm_wrap.cxx
  36   SWIG_LINK_LIBRARIES(gdcm gdcm ${PYTHON_LIBRARIES})
  37
  38   #SWIG_GET_EXTRA_OUTPUT_FILES(python foobar "/usr/" "gdcm" )
  39   #MESSAGE(FATAL_ERROR ${swig_generated_file_fullname})
  40   #MESSAGE(FATAL_ERROR ${swig_source_file_fullname})
  41
  42   # Swig creates a gdcm.py file put it in the right place, if only cmake
  43   # was able to do stuff properly ...
  44   ADD_CUSTOM_TARGET( CMAKE_S____ ALL)
  45   ADD_CUSTOM_COMMAND(
  46     TARGET CMAKE_S____
  47     POST_BUILD
  48     COMMAND ${CMAKE_COMMAND}
  49     ARGS -E copy
  50       ${GDCM_BINARY_DIR}/gdcmPython/gdcm.py
  51       ${GDCM_BINARY_DIR}/bin/gdcm.py
  52   )
  53
  54 ELSE(${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 1.9)
  55
  56   # As of 09/10/2003 there was no FindSWIG.cmake
  57   # later we should use SWIG instead of swig
  58   FIND_PROGRAM(SWIG_EXECUTABLE
  59     NAMES swig-1.3 swig
  60   )
  61
  62   IF(NOT SWIG_EXECUTABLE)
  63     MESSAGE(FATAL_ERROR "Swig could not be found wrapping is impossible")
  64   ENDIF(NOT SWIG_EXECUTABLE)
  65
  66   # Build our custom command :
  67   ADD_CUSTOM_COMMAND(
  68     OUTPUT    ${GDCM_BINARY_DIR}/gdcmPython/gdcm_wrap.cxx
  69     COMMAND   ${SWIG_EXECUTABLE}
  70     ARGS      -python -c++ -I${GDCM_SOURCE_DIR}/src -o
  71               ${GDCM_BINARY_DIR}/gdcmPython/gdcm_wrap.cxx
  72               ${GDCM_SOURCE_DIR}/gdcmPython/gdcm.i
  73     DEPENDS   ${GDCM_SOURCE_DIR}/gdcmPython/gdcm.i
  74     COMMENT   "Generating gdcm_wrap.cxx/gdcm.py based on gdcm.i"
  75   )
  76   # Since the file gdcm_wrap.cxx does not exist, mark it as GENERATED:
  77   SET_SOURCE_FILES_PROPERTIES(${GDCM_BINARY_DIR}/gdcmPython/gdcm_wrap.cxx GENERATED)
  78
  79   ADD_LIBRARY(pygdcm gdcm_wrap.cxx)
  80   TARGET_LINK_LIBRARIES(pygdcm
  81     ${PYTHON_LIBRARY}
  82     gdcm
  83   )
  84   # http://www.cmake.org/pipermail/cmake/2003-August/004190.html
  85   #SET_TARGET_PROPERTIES(pygdcm PROPERTIES PREFIX "_")
  86
  87   # This swig command will also outputs gdcm.py :
  88   SET_SOURCE_FILES_PROPERTIES(${GDCM_BINARY_DIR}/gdcmPython/gdcm.py GENERATED)
  89
  90   # Instead of a simple copy operation let create our own gdcm.py file:
  91   # First read what swig dumped:
  92   IF(EXISTS ${GDCM_BINARY_DIR}/gdcmPython/gdcm.py)
  93     FILE(READ ${GDCM_BINARY_DIR}/gdcmPython/gdcm.py SWIG_GDCM_PY)
  94   ENDIF(EXISTS ${GDCM_BINARY_DIR}/gdcmPython/gdcm.py)
  95
  96   # Then create the gdcm.py = gdcmVersion.py + gdcm.py (swig) file:
  97   FILE(WRITE ${GDCM_BINARY_DIR}/bin/gdcmVersion.py
  98     "import os\n"
  99     "gdcmVERSION=\"${GDCM_VERSION}\"\n"
 100     "GDCM_DATA_PATH=\"${GDCM_DATA_ROOT}\"\n\n"
 101     ${SWIG_GDCM_PY}
 102     )
 103
 104   # Seems like they want instead a file called gdcmPython.py
 105   # Thus add the custom command to copy it to proper location:
 106 #  ADD_CUSTOM_COMMAND(
 107 #    TARGET pygdcm
 108 #    POST_BUILD
 109 #    COMMAND ${CMAKE_COMMAND}
 110 #    ARGS -E copy
 111 #      ${GDCM_BINARY_DIR}/bin/gdcm.py
 112 #      ${GDCM_BINARY_DIR}/bin/gdcmPython.py
 113 #  )
 114
 115   # Here comes the hack to rename the library to a more 'swig' compliant scheme"
 116   SET(LIB_NAME ${CMAKE_SHARED_LIBRARY_PREFIX}pygdcm${CMAKE_SHARED_LIBRARY_SUFFIX})
 117   SET(EXE_DIR ${GDCM_BINARY_DIR}/Executable)
 118   IF(EXECUTABLE_OUTPUT_PATH)
 119     SET(EXE_DIR ${EXECUTABLE_OUTPUT_PATH})
 120   ENDIF(EXECUTABLE_OUTPUT_PATH)
 121   SET(LIB_DIR ${GDCM_BINARY_DIR}/Library/Shared)
 122   IF(LIBRARY_OUTPUT_PATH)
 123     SET(LIB_DIR ${LIBRARY_OUTPUT_PATH})
 124   ENDIF(LIBRARY_OUTPUT_PATH)
 125
 126   IF(WIN32 OR APPLE)
 127     SET(SHARED_MUST_BE_IN_EXE_DIR 1)
 128   ENDIF(WIN32 OR APPLE)
 129
 130   IF(NOT SHARED_MUST_BE_IN_EXE_DIR)
 131     SET(EXE_DIR ${LIB_DIR})
 132   ENDIF(NOT SHARED_MUST_BE_IN_EXE_DIR)
 133
 134   ADD_CUSTOM_COMMAND(
 135     TARGET pygdcm
 136     POST_BUILD
 137     COMMAND ${CMAKE_COMMAND} ARGS -E copy
 138     ${LIB_DIR}/${CMAKE_CFG_INTDIR}/${LIB_NAME}
 139     ${EXE_DIR}/${CMAKE_CFG_INTDIR}/_gdcm${CMAKE_SHARED_LIBRARY_SUFFIX}
 140     )
 141
 142   # Remove temporary (lib)pygdcm(.so .dll) library:
 143 #  ADD_CUSTOM_COMMAND(
 144 #    TARGET pygdcm
 145 #    POST_BUILD
 146 #    COMMAND ${CMAKE_COMMAND}
 147 #    ARGS -E remove ${LIB_DIR}/${CMAKE_CFG_INTDIR}/${LIB_NAME}
 148 #  )
 149
 150   # where are library stored ?
 151 #  SET(GDCM_LIB_DIR ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR})
 152 #  ADD_CUSTOM_COMMAND(
 153 #    TARGET pygdcm
 154 #    POST_BUILD
 155 #    COMMAND ${CMAKE_COMMAND}
 156 #    ARGS -E copy
 157 #      ${EXECUTABLE_OUTPUT_PATH}/${CMAKE_CFG_INTDIR}/${MY_LIB_NAME}${CMAKE_SHLIB_SUFFIX}
 158 #      ${EXECUTABLE_OUTPUT_PATH}/${CMAKE_CFG_INTDIR}/vtkXY.pvm
 159 #    TARGET vtkXY
 160 #  )
 161
 162 ENDIF(${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 1.9)
 163
 164
 165 #-----------------------------------------------------------------------------
 166 # VTK Wrapping
 167 #
 168 IF(GDCM_VTK)
 169   INCLUDE_DIRECTORIES(
 170     ${GDCM_SOURCE_DIR}/vtk
 171   )
 172
 173   SET(vtkgdcmPython_la_SOURCES
 174       ${GDCM_SOURCE_DIR}/vtk/vtkGdcmReader.cxx
 175   )
 176   SET_SOURCE_FILES_PROPERTIES(vtkGdcmReaderPython.cxx GENERATED)
 177
 178   # Configure Python module, which is the plugin itself
 179   IF (GDCM_WRAP_PYTHON)
 180     IF(NOT VTK_WRAP_PYTHON)
 181       MESSAGE(FATAL_ERROR "Can't build gdcm python wrapping if VTK_WRAP_PYTHON is OFF" )
 182     ENDIF(NOT VTK_WRAP_PYTHON)
 183     VTK_WRAP_PYTHON2(vtkgdcmPython gdcmWrapSOURCES
 184                    ${vtkgdcmPython_la_SOURCES})
 185     # The C++ files must be made into a C++ library
 186     ADD_LIBRARY(vtkgdcmPython SHARED ${gdcmWrapSOURCES})  #MODULE on apple ?
 187     # set the libraries to link against
 188     #SET_TARGET_PROPERTIES(${foobar} PROPERTIES PREFIX "")
 189
 190     #GET_TARGET_PROPERTY(swig_gdcm_fullpath "${SWIG_MODULE_gdcm_REAL_NAME}" LOCATION)
 191     TARGET_LINK_LIBRARIES (vtkgdcmPython
 192                            vtkgdcm
 193                            vtkCommonPython
 194                            vtkIOPython)
 195   ENDIF (GDCM_WRAP_PYTHON)
 196 ENDIF(GDCM_VTK)
 197
 198   # generate a setup.py according to VTK installation
 199   # put it in subdir in order to not override old one
 200
 201   GET_FILENAME_COMPONENT(VTKPATH ${VTK_DIR}/../../ ABSOLUTE)
 202   CONFIGURE_FILE(
 203       ${GDCM_SOURCE_DIR}/gdcmPython/setup.py.in
 204       ${GDCM_BINARY_DIR}/setup.py
 205   )
 206
 207 #-----------------------------------------------------------------------------
 208 # Install stuff:
 209
 210 # Cmake cannot handle installing since python wants stuff to be installed
 211 # in /usr/lib/pythonx.x/site-package and not a a std /usr/lib
 212 # Thus generate a setup.py file using distutils
 213
 214 # Create a gdcm.pth file:
 215
 216 FILE(WRITE ${GDCM_BINARY_DIR}/gdcmPython/gdcm.pth
 217     "gdcmPython\n"
 218     )
 219
 220 FILE(WRITE ${GDCM_BINARY_DIR}/gdcmPython/__init__.py
 221     "import gdcm\n"
 222     )
 223
 224 IF(GDCM_VTK)
 225   FILE(APPEND ${GDCM_BINARY_DIR}/gdcmPython/__init__.py
 226     "import os\n"
 227     "if os.name == 'posix':\n"
 228     "  from libvtkgdcmPython import *\n"
 229     "else:\n"
 230     "  from vtkgdcmPython import *\n"
 231     )
 232 ENDIF(GDCM_VTK)
 233
 234 #-----------------------------------------------------------------------------
 235 # Add test from demo subdir:
 236
 237 SUBDIRS(demo)