findqt4.cmake

Gaussian Mixture Algorithm

  IF (QT_MOC_EXECUTABLE)
     SET(QT_WRAP_CPP "YES")
  ENDIF (QT_MOC_EXECUTABLE)

  IF (QT_UIC_EXECUTABLE)
     SET(QT_WRAP_UI "YES")
  ENDIF (QT_UIC_EXECUTABLE)



  MARK_AS_ADVANCED( QT_UIC_EXECUTABLE QT_UIC3_EXECUTABLE QT_MOC_EXECUTABLE QT_RCC_EXECUTABLE )

  ######################################
  #
  #       Macros for building Qt files
  #
  ######################################

  MACRO (QT4_GET_MOC_INC_DIRS _moc_INC_DIRS)
     SET(${_moc_INC_DIRS})
     GET_DIRECTORY_PROPERTY(_inc_DIRS INCLUDE_DIRECTORIES)

     FOREACH(_current ${_inc_DIRS})
        SET(${_moc_INC_DIRS} ${${_moc_INC_DIRS}} "-I" ${_current})
     ENDFOREACH(_current ${_inc_DIRS})
  ENDMACRO(QT4_GET_MOC_INC_DIRS)


  MACRO (QT4_GENERATE_MOC infile outfile )
  # get include dirs
     QT4_GET_MOC_INC_DIRS(moc_includes)

     GET_FILENAME_COMPONENT(infile ${infile} ABSOLUTE)

     ADD_CUSTOM_COMMAND(OUTPUT ${outfile}
        COMMAND ${QT_MOC_EXECUTABLE}
        ARGS ${moc_includes} -o ${outfile} ${infile}
        DEPENDS ${infile})

     MACRO_ADD_FILE_DEPENDENCIES(${infile} ${outfile})
  ENDMACRO (QT4_GENERATE_MOC)


  # QT4_WRAP_CPP(outfiles inputfile ... )
  # TODO  perhaps add support for -D, -U and other minor options

  MACRO (QT4_WRAP_CPP outfiles )
    # get include dirs
    QT4_GET_MOC_INC_DIRS(moc_includes)

    FOREACH (it ${ARGN})
      GET_FILENAME_COMPONENT(it ${it} ABSOLUTE)
      GET_FILENAME_COMPONENT(outfile ${it} NAME_WE)

      SET(outfile ${CMAKE_CURRENT_BINARY_DIR}/moc_${outfile}.cxx)
      ADD_CUSTOM_COMMAND(OUTPUT ${outfile}
        COMMAND ${QT_MOC_EXECUTABLE}
        ARGS ${moc_includes} -o ${outfile} ${it}
        DEPENDS ${it})
      SET(${outfiles} ${${outfiles}} ${outfile})
    ENDFOREACH(it)

  ENDMACRO (QT4_WRAP_CPP)


  # QT4_WRAP_UI(outfiles inputfile ... )

  MACRO (QT4_WRAP_UI outfiles )

    FOREACH (it ${ARGN})
      GET_FILENAME_COMPONENT(outfile ${it} NAME_WE)
      GET_FILENAME_COMPONENT(infile ${it} ABSOLUTE)
      SET(outfile ${CMAKE_CURRENT_BINARY_DIR}/ui_${outfile}.h)
      ADD_CUSTOM_COMMAND(OUTPUT ${outfile}
        COMMAND ${QT_UIC_EXECUTABLE}
        ARGS -o ${outfile} ${infile}
        MAIN_DEPENDENCY ${infile})
      SET(${outfiles} ${${outfiles}} ${outfile})
    ENDFOREACH (it)

  ENDMACRO (QT4_WRAP_UI)


  # QT4_ADD_RESOURCE(outfiles inputfile ... )
  # TODO  perhaps consider adding support for compression and root options to rcc

  MACRO (QT4_ADD_RESOURCES outfiles )

    FOREACH (it ${ARGN})
      GET_FILENAME_COMPONENT(outfilename ${it} NAME_WE)
      GET_FILENAME_COMPONENT(infile ${it} ABSOLUTE)
      GET_FILENAME_COMPONENT(rc_path ${infile} PATH)
      SET(outfile ${CMAKE_CURRENT_BINARY_DIR}/qrc_${outfilename}.cxx)
      #  parse file for dependencies
      FILE(READ "${infile}" _RC_FILE_CONTENTS)
      STRING(REGEX MATCHALL "<file>[^<]*" _RC_FILES "${_RC_FILE_CONTENTS}")
      SET(_RC_DEPENDS)
      FOREACH(_RC_FILE ${_RC_FILES})
        STRING(REGEX REPLACE "^<file>" "" _RC_FILE "${_RC_FILE}")
        SET(_RC_DEPENDS ${_RC_DEPENDS} "${rc_path}/${_RC_FILE}")
      ENDFOREACH(_RC_FILE)
      ADD_CUSTOM_COMMAND(OUTPUT ${outfile}
        COMMAND ${QT_RCC_EXECUTABLE}
        ARGS -name ${outfilename} -o ${outfile} ${infile}
        MAIN_DEPENDENCY ${infile}
        DEPENDS ${_RC_DEPENDS})
      SET(${outfiles} ${${outfiles}} ${outfile})
    ENDFOREACH (it)

  ENDMACRO (QT4_ADD_RESOURCES)


   MACRO(QT4_AUTOMOC)
      QT4_GET_MOC_INC_DIRS(_moc_INCS)

      SET(_matching_FILES )
      FOREACH (_current_FILE ${ARGN})

         GET_FILENAME_COMPONENT(_abs_FILE ${_current_FILE} ABSOLUTE)
         # if "SKIP_AUTOMOC" is set to true, we will not handle this file here.
         # here. this is required to make bouic work correctly:
         # we need to add generated .cpp files to the sources (to compile them),
         # but we cannot let automoc handle them, as the .cpp files don't exist yet when
         # cmake is run for the very first time on them -> however the .cpp files might
         # exist at a later run. at that time we need to skip them, so that we don't add two
         # different rules for the same moc file
         GET_SOURCE_FILE_PROPERTY(_skip ${_abs_FILE} SKIP_AUTOMOC)

         IF ( NOT _skip AND EXISTS ${_abs_FILE} )

            FILE(READ ${_abs_FILE} _contents)

            GET_FILENAME_COMPONENT(_abs_PATH ${_abs_FILE} PATH)

            STRING(REGEX MATCHALL "#include +[^ ]+\\.moc[\">]" _match "${_contents}")
            IF(_match)
               FOREACH (_current_MOC_INC ${_match})
                  STRING(REGEX MATCH "[^ <\"]+\\.moc" _current_MOC "${_current_MOC_INC}")

                  GET_filename_component(_basename ${_current_MOC} NAME_WE)
   #               SET(_header ${CMAKE_CURRENT_SOURCE_DIR}/${_basename}.h)
                  SET(_header ${_abs_PATH}/${_basename}.h)
                  SET(_moc    ${CMAKE_CURRENT_BINARY_DIR}/${_current_MOC})
                  ADD_CUSTOM_COMMAND(OUTPUT ${_moc}
                     COMMAND ${QT_MOC_EXECUTABLE}
                     ARGS ${_moc_INCS} ${_header} -o ${_moc}
                     DEPENDS ${_header}
                  )

                  MACRO_ADD_FILE_DEPENDENCIES(${_abs_FILE} ${_moc})
               ENDFOREACH (_current_MOC_INC)
            ENDIF(_match)
         ENDIF ( NOT _skip AND EXISTS ${_abs_FILE} )
      ENDFOREACH (_current_FILE)
   ENDMACRO(QT4_AUTOMOC)



  ######################################
  #
  #       decide if Qt got found
  #
  ######################################

  # if the includes,libraries,moc,uic and rcc are found then we have it
  IF( QT_LIBRARY_DIR AND QT_INCLUDE_DIR AND QT_MOC_EXECUTABLE AND QT_UIC_EXECUTABLE AND QT_RCC_EXECUTABLE)
    SET( QT4_FOUND "YES" )
    IF( NOT Qt4_FIND_QUIETLY)
      MESSAGE(STATUS "Found Qt-Version ${QTVERSION}")
    ENDIF( NOT Qt4_FIND_QUIETLY)
  ELSE( QT_LIBRARY_DIR AND QT_INCLUDE_DIR AND QT_MOC_EXECUTABLE AND QT_UIC_EXECUTABLE AND QT_RCC_EXECUTABLE)
    SET( QT4_FOUND "NO")
    IF( Qt4_FIND_REQUIRED)
      MESSAGE( FATAL_ERROR "Qt libraries, includes, moc, uic or/and rcc NOT found!")
    ENDIF( Qt4_FIND_REQUIRED)
  ENDIF( QT_LIBRARY_DIR AND QT_INCLUDE_DIR AND QT_MOC_EXECUTABLE AND QT_UIC_EXECUTABLE AND  QT_RCC_EXECUTABLE)
  SET(QT_FOUND ${QT4_FOUND})

  #######################################
  #
  #       Qt configuration
  #
  #######################################
  IF(EXISTS "${QT_MKSPECS_DIR}/qconfig.pri")
    FILE(READ ${QT_MKSPECS_DIR}/qconfig.pri _qconfig_FILE_contents)
    STRING(REGEX MATCH "QT_CONFIG[^\n]+" QT_QCONFIG ${_qconfig_FILE_contents})
    STRING(REGEX MATCH "CONFIG[^\n]+" QT_CONFIG ${_qconfig_FILE_contents})
  ENDIF(EXISTS "${QT_MKSPECS_DIR}/qconfig.pri")


  ###############################################
  #
  #       configuration/system dependent settings  
  #
  ###############################################

  SET(QT_GUI_LIB_DEPENDENCIES "")
  SET(QT_CORE_LIB_DEPENDENCIES "")
  
  # shared build needs -DQT_SHARED
  IF(NOT QT_CONFIG MATCHES "static")
    # warning currently only qconfig.pri on Windows potentially contains "static"
    # so QT_SHARED might not get defined properly on Mac/X11 (which seems harmless right now)
    # Trolltech said they'd consider exporting it for all platforms in future releases.
    SET(QT_DEFINITIONS ${QT_DEFINITIONS} -DQT_SHARED)
  ENDIF(NOT QT_CONFIG MATCHES "static")
  
  ## system png
  IF(QT_QCONFIG MATCHES "system-png")
    FIND_LIBRARY(QT_PNG_LIBRARY NAMES png)
    SET(QT_GUI_LIB_DEPENDENCIES ${QT_GUI_LIB_DEPENDENCIES} ${QT_PNG_LIBRARY})
    MARK_AS_ADVANCED(QT_PNG_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "system-png")
  
  # for X11, get X11 library directory
  IF(Q_WS_X11)
    QT_QUERY_QMAKE(QMAKE_LIBDIR_X11 "QMAKE_LIBDIR_X11")
  ENDIF(Q_WS_X11)

  ## X11 SM
  IF(QT_QCONFIG MATCHES "x11sm")
    # ask qmake where the x11 libs are
    FIND_LIBRARY(QT_X11_SM_LIBRARY NAMES SM PATHS ${QMAKE_LIBDIR_X11})
    FIND_LIBRARY(QT_X11_ICE_LIBRARY NAMES ICE PATHS ${QMAKE_LIBDIR_X11})
    SET(QT_GUI_LIB_DEPENDENCIES ${QT_GUI_LIB_DEPENDENCIES} ${QT_X11_SM_LIBRARY} ${QT_X11_ICE_LIBRARY})
    MARK_AS_ADVANCED(QT_X11_SM_LIBRARY)
    MARK_AS_ADVANCED(QT_X11_ICE_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "x11sm")
  
  ## Xi
  IF(QT_QCONFIG MATCHES "tablet")
    FIND_LIBRARY(QT_XI_LIBRARY NAMES Xi PATHS ${QMAKE_LIBDIR_X11})
    SET(QT_GUI_LIB_DEPENDENCIES ${QT_GUI_LIB_DEPENDENCIES} ${QT_XI_LIBRARY})
    MARK_AS_ADVANCED(QT_XI_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "tablet")

  ## Xrender
  IF(QT_QCONFIG MATCHES "xrender")
    FIND_LIBRARY(QT_XRENDER_LIBRARY NAMES Xrender PATHS ${QMAKE_LIBDIR_X11})
    SET(QT_GUI_LIB_DEPENDENCIES ${QT_GUI_LIB_DEPENDENCIES} ${QT_XRENDER_LIBRARY})
    MARK_AS_ADVANCED(QT_XRENDER_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "xrender")
  
  ## Xrandr
  IF(QT_QCONFIG MATCHES "xrandr")
    FIND_LIBRARY(QT_XRANDR_LIBRARY NAMES Xrandr PATHS ${QMAKE_LIBDIR_X11})
    SET(QT_GUI_LIB_DEPENDENCIES ${QT_GUI_LIB_DEPENDENCIES} ${QT_XRANDR_LIBRARY})
    MARK_AS_ADVANCED(QT_XRANDR_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "xrandr")
  
  ## Xcursor
  IF(QT_QCONFIG MATCHES "xcursor")
    FIND_LIBRARY(QT_XCURSOR_LIBRARY NAMES Xcursor PATHS ${QMAKE_LIBDIR_X11})
    SET(QT_GUI_LIB_DEPENDENCIES ${QT_GUI_LIB_DEPENDENCIES} ${QT_XCURSOR_LIBRARY})
    MARK_AS_ADVANCED(QT_XCURSOR_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "xcursor")
  
  ## Xinerama
  IF(QT_QCONFIG MATCHES "xinerama")
    FIND_LIBRARY(QT_XINERAMA_LIBRARY NAMES Xinerama PATHS ${QMAKE_LIBDIR_X11})
    SET(QT_GUI_LIB_DEPENDENCIES ${QT_GUI_LIB_DEPENDENCIES} ${QT_XINERAMA_LIBRARY})
    MARK_AS_ADVANCED(QT_XINERAMA_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "xinerama")
  
  ## system-freetype
  IF(QT_QCONFIG MATCHES "system-freetype")
    FIND_LIBRARY(QT_FREETYPE_LIBRARY NAMES freetype)
    SET(QT_GUI_LIB_DEPENDENCIES ${QT_GUI_LIB_DEPENDENCIES} ${QT_FREETYPE_LIBRARY})
    MARK_AS_ADVANCED(QT_FREETYPE_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "system-freetype")
  
  ## fontconfig
  IF(QT_QCONFIG MATCHES "fontconfig")
    FIND_LIBRARY(QT_FONTCONFIG_LIBRARY NAMES fontconfig)
    SET(QT_GUI_LIB_DEPENDENCIES ${QT_GUI_LIB_DEPENDENCIES} ${QT_FONTCONFIG_LIBRARY})
    MARK_AS_ADVANCED(QT_FONTCONFIG_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "fontconfig")
  
  ## system-zlib
  IF(QT_QCONFIG MATCHES "system-zlib")
    FIND_LIBRARY(QT_ZLIB_LIBRARY NAMES z)
    SET(QT_CORE_LIB_DEPENDENCIES ${QT_CORE_LIB_DEPENDENCIES} ${QT_ZLIB_LIBRARY})
    MARK_AS_ADVANCED(QT_ZLIB_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "system-zlib")

  IF(Q_WS_X11)
    # X11 libraries Qt absolutely depends on
    QT_QUERY_QMAKE(QT_LIBS_X11 "QMAKE_LIBS_X11")
    SEPARATE_ARGUMENTS(QT_LIBS_X11)
    FOREACH(QT_X11_LIB ${QT_LIBS_X11})
      STRING(REGEX REPLACE "-l" "" QT_X11_LIB "${QT_X11_LIB}")
      SET(QT_TMP_STR "QT_X11_${QT_X11_LIB}_LIBRARY")
      FIND_LIBRARY(${QT_TMP_STR} NAMES "${QT_X11_LIB}" PATHS ${QMAKE_LIBDIR_X11})
      SET(QT_GUI_LIB_DEPENDENCIES ${QT_GUI_LIB_DEPENDENCIES} ${${QT_TMP_STR}})
    ENDFOREACH(QT_X11_LIB)

    QT_QUERY_QMAKE(QT_LIBS_THREAD "QMAKE_LIBS_THREAD")
    SET(QT_CORE_LIB_DEPENDENCIES ${QT_CORE_LIB_DEPENDENCIES} ${QT_LIBS_THREAD})
    
    QT_QUERY_QMAKE(QMAKE_LIBS_DYNLOAD "QMAKE_LIBS_DYNLOAD")
    SET (QT_CORE_LIB_DEPENDENCIES ${QT_CORE_LIB_DEPENDENCIES} ${QMAKE_LIBS_DYNLOAD})

  ENDIF(Q_WS_X11)

  IF(Q_WS_WIN)
    SET(QT_GUI_LIB_DEPENDENCIES ${QT_GUI_LIB_DEPENDENCIES} Imm32 Winmm)
    SET(QT_CORE_LIB_DEPENDENCIES ${QT_CORE_LIB_DEPENDENCIES} Ws2_32)
  ENDIF(Q_WS_WIN)
  
  IF(Q_WS_MAC)
    SET(QT_GUI_LIB_DEPENDENCIES ${QT_GUI_LIB_DEPENDENCIES} "-framework Carbon" "-framework QuickTime")
    SET(QT_CORE_LIB_DEPENDENCIES ${QT_CORE_LIB_DEPENDENCIES} "-framework ApplicationServices")
  ENDIF(Q_WS_MAC)

  #######################################
  #
  #       compatibility settings 
  #
  #######################################
  # Backwards compatibility for CMake1.4 and 1.2
  SET (QT_MOC_EXE ${QT_MOC_EXECUTABLE} )
  SET (QT_UIC_EXE ${QT_UIC_EXECUTABLE} )

  SET( QT_QT_LIBRARY "")

ELSE(QT4_QMAKE_FOUND)

   IF(Qt4_FIND_REQUIRED)
      IF(QT4_INSTALLED_VERSION_TOO_OLD)
         MESSAGE(FATAL_ERROR "The installed Qt version ${QTVERSION} is too old, at least version ${QT_MIN_VERSION} is required")
      ELSE(QT4_INSTALLED_VERSION_TOO_OLD)
     MESSAGE( FATAL_ERROR "Qt qmake not found!")
      ENDIF(QT4_INSTALLED_VERSION_TOO_OLD)
   ELSE(Qt4_FIND_REQUIRED)
      IF(QT4_INSTALLED_VERSION_TOO_OLD AND NOT Qt4_FIND_QUIETLY)
         MESSAGE(STATUS "The installed Qt version ${QTVERSION} is too old, at least version ${QT_MIN_VERSION} is required")
      ENDIF(QT4_INSTALLED_VERSION_TOO_OLD AND NOT Qt4_FIND_QUIETLY)
   ENDIF(Qt4_FIND_REQUIRED)
 
ENDIF (QT4_QMAKE_FOUND)