Split some logic of FindQt4.cmake into separate files, which are included automatically.

Qt4Macros.cmake: all the "public" macros of FindQt4.cmake
Qt4ConfigDependentSettings.cmake: the code for detecting the
Qt-configuration dependent additional libraries, e.g. when linking statically.

There should be no functional changes in this patch.
The patch reduces the length of FindQt4.cmake from 1700 lines to around 1000
lines, which is still long enough, but this should make the file a easier to
handle (and it is similar to what we do in KDE with FindKDE4Internal.cmake
and KDE4Macros.cmake)

Ok by Clinton.

Alex

1 files changed, 399 insertions, 0 deletions

diff --git a/Modules/Qt4Macros.cmake b/Modules/Qt4Macros.cmake
new file mode 100644
index 0000000..bd72c8f
--- /dev/null
+++ b/Modules/Qt4Macros.cmake
@@ -0,0 +1,399 @@
+# This file is included by FindQt4.cmake, don't include it directly.
+
+#=============================================================================
+# Copyright 2005-2009 Kitware, Inc.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distributed this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+
+######################################
+#
+#       Macros for building Qt files
+#
+######################################
+
+
+MACRO (QT4_EXTRACT_OPTIONS _qt4_files _qt4_options)
+  SET(${_qt4_files})
+  SET(${_qt4_options})
+  SET(_QT4_DOING_OPTIONS FALSE)
+  FOREACH(_currentArg ${ARGN})
+    IF ("${_currentArg}" STREQUAL "OPTIONS")
+      SET(_QT4_DOING_OPTIONS TRUE)
+    ELSE ("${_currentArg}" STREQUAL "OPTIONS")
+      IF(_QT4_DOING_OPTIONS) 
+        LIST(APPEND ${_qt4_options} "${_currentArg}")
+      ELSE(_QT4_DOING_OPTIONS)
+        LIST(APPEND ${_qt4_files} "${_currentArg}")
+      ENDIF(_QT4_DOING_OPTIONS)
+    ENDIF ("${_currentArg}" STREQUAL "OPTIONS")
+  ENDFOREACH(_currentArg) 
+ENDMACRO (QT4_EXTRACT_OPTIONS)
+
+
+# macro used to create the names of output files preserving relative dirs
+MACRO (QT4_MAKE_OUTPUT_FILE infile prefix ext outfile )
+  STRING(LENGTH ${CMAKE_CURRENT_BINARY_DIR} _binlength)
+  STRING(LENGTH ${infile} _infileLength)
+  SET(_checkinfile ${CMAKE_CURRENT_SOURCE_DIR})
+  IF(_infileLength GREATER _binlength)
+    STRING(SUBSTRING "${infile}" 0 ${_binlength} _checkinfile)
+    IF(_checkinfile STREQUAL "${CMAKE_CURRENT_BINARY_DIR}")
+      FILE(RELATIVE_PATH rel ${CMAKE_CURRENT_BINARY_DIR} ${infile})
+    ELSE(_checkinfile STREQUAL "${CMAKE_CURRENT_BINARY_DIR}")
+      FILE(RELATIVE_PATH rel ${CMAKE_CURRENT_SOURCE_DIR} ${infile})
+    ENDIF(_checkinfile STREQUAL "${CMAKE_CURRENT_BINARY_DIR}")
+  ELSE(_infileLength GREATER _binlength)
+    FILE(RELATIVE_PATH rel ${CMAKE_CURRENT_SOURCE_DIR} ${infile})
+  ENDIF(_infileLength GREATER _binlength)
+  IF(WIN32 AND rel MATCHES "^[a-zA-Z]:") # absolute path 
+    STRING(REGEX REPLACE "^([a-zA-Z]):(.*)$" "\\1_\\2" rel "${rel}")
+  ENDIF(WIN32 AND rel MATCHES "^[a-zA-Z]:") 
+  SET(_outfile "${CMAKE_CURRENT_BINARY_DIR}/${rel}")
+  STRING(REPLACE ".." "__" _outfile ${_outfile})
+  GET_FILENAME_COMPONENT(outpath ${_outfile} PATH)
+  GET_FILENAME_COMPONENT(_outfile ${_outfile} NAME_WE)
+  FILE(MAKE_DIRECTORY ${outpath})
+  SET(${outfile} ${outpath}/${prefix}${_outfile}.${ext})
+ENDMACRO (QT4_MAKE_OUTPUT_FILE )
+
+
+MACRO (QT4_GET_MOC_FLAGS _moc_flags)
+  SET(${_moc_flags})
+  GET_DIRECTORY_PROPERTY(_inc_DIRS INCLUDE_DIRECTORIES)
+
+  FOREACH(_current ${_inc_DIRS})
+    IF("${_current}" MATCHES ".framework/?$")
+      STRING(REGEX REPLACE "/[^/]+.framework" "" framework_path "${_current}")
+      SET(${_moc_flags} ${${_moc_flags}} "-F${framework_path}")
+    ELSE("${_current}" MATCHES ".framework/?$")
+      SET(${_moc_flags} ${${_moc_flags}} "-I${_current}")
+    ENDIF("${_current}" MATCHES ".framework/?$")
+  ENDFOREACH(_current ${_inc_DIRS})
+
+  GET_DIRECTORY_PROPERTY(_defines COMPILE_DEFINITIONS)
+  FOREACH(_current ${_defines})
+    SET(${_moc_flags} ${${_moc_flags}} "-D${_current}")
+  ENDFOREACH(_current ${_defines})
+
+  IF(Q_WS_WIN)
+    SET(${_moc_flags} ${${_moc_flags}} -DWIN32)
+  ENDIF(Q_WS_WIN)
+
+ENDMACRO(QT4_GET_MOC_FLAGS)
+
+
+# helper macro to set up a moc rule
+MACRO (QT4_CREATE_MOC_COMMAND infile outfile moc_flags moc_options)
+  # For Windows, create a parameters file to work around command line length limit
+  IF (WIN32)
+    # Pass the parameters in a file.  Set the working directory to
+    # be that containing the parameters file and reference it by
+    # just the file name.  This is necessary because the moc tool on
+    # MinGW builds does not seem to handle spaces in the path to the
+    # file given with the @ syntax.
+    GET_FILENAME_COMPONENT(_moc_outfile_name "${outfile}" NAME)
+    GET_FILENAME_COMPONENT(_moc_outfile_dir "${outfile}" PATH)
+    IF(_moc_outfile_dir)
+      SET(_moc_working_dir WORKING_DIRECTORY ${_moc_outfile_dir})
+    ENDIF(_moc_outfile_dir)
+    SET (_moc_parameters_file ${outfile}_parameters)
+    SET (_moc_parameters ${moc_flags} ${moc_options} -o "${outfile}" "${infile}")
+    FILE (REMOVE ${_moc_parameters_file})
+    FOREACH(arg ${_moc_parameters})
+      FILE (APPEND ${_moc_parameters_file} "${arg}\n")
+    ENDFOREACH(arg)
+    ADD_CUSTOM_COMMAND(OUTPUT ${outfile}
+                       COMMAND ${QT_MOC_EXECUTABLE} @${_moc_outfile_name}_parameters
+                       DEPENDS ${infile}
+                       ${_moc_working_dir}
+                       VERBATIM)
+  ELSE (WIN32)
+    ADD_CUSTOM_COMMAND(OUTPUT ${outfile}
+                       COMMAND ${QT_MOC_EXECUTABLE}
+                       ARGS ${moc_flags} ${moc_options} -o ${outfile} ${infile}
+                       DEPENDS ${infile})
+  ENDIF (WIN32)
+ENDMACRO (QT4_CREATE_MOC_COMMAND)
+
+
+MACRO (QT4_GENERATE_MOC infile outfile )
+# get include dirs and flags
+   QT4_GET_MOC_FLAGS(moc_flags)
+   GET_FILENAME_COMPONENT(abs_infile ${infile} ABSOLUTE)
+   QT4_CREATE_MOC_COMMAND(${abs_infile} ${outfile} "${moc_flags}" "")
+   SET_SOURCE_FILES_PROPERTIES(${outfile} PROPERTIES SKIP_AUTOMOC TRUE)  # dont run automoc on this file
+ENDMACRO (QT4_GENERATE_MOC)
+
+
+# QT4_WRAP_CPP(outfiles inputfile ... )
+
+MACRO (QT4_WRAP_CPP outfiles )
+  # get include dirs
+  QT4_GET_MOC_FLAGS(moc_flags)
+  QT4_EXTRACT_OPTIONS(moc_files moc_options ${ARGN})
+
+  FOREACH (it ${moc_files})
+    GET_FILENAME_COMPONENT(it ${it} ABSOLUTE)
+    QT4_MAKE_OUTPUT_FILE(${it} moc_ cxx outfile)
+    QT4_CREATE_MOC_COMMAND(${it} ${outfile} "${moc_flags}" "${moc_options}")
+    SET(${outfiles} ${${outfiles}} ${outfile})
+  ENDFOREACH(it)
+
+ENDMACRO (QT4_WRAP_CPP)
+
+
+# QT4_WRAP_UI(outfiles inputfile ... )
+
+MACRO (QT4_WRAP_UI outfiles )
+  QT4_EXTRACT_OPTIONS(ui_files ui_options ${ARGN})
+
+  FOREACH (it ${ui_files})
+    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 ${ui_options} -o ${outfile} ${infile}
+      MAIN_DEPENDENCY ${infile})
+    SET(${outfiles} ${${outfiles}} ${outfile})
+  ENDFOREACH (it)
+
+ENDMACRO (QT4_WRAP_UI)
+
+
+# QT4_ADD_RESOURCES(outfiles inputfile ... )
+
+MACRO (QT4_ADD_RESOURCES outfiles )
+  QT4_EXTRACT_OPTIONS(rcc_files rcc_options ${ARGN})
+
+  FOREACH (it ${rcc_files})
+    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 
+    #  all files are absolute paths or relative to the location of the qrc file
+    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}")
+      STRING(REGEX MATCH "^/|([A-Za-z]:/)" _ABS_PATH_INDICATOR "${_RC_FILE}")
+      IF(NOT _ABS_PATH_INDICATOR)
+        SET(_RC_FILE "${rc_path}/${_RC_FILE}")
+      ENDIF(NOT _ABS_PATH_INDICATOR)
+      SET(_RC_DEPENDS ${_RC_DEPENDS} "${_RC_FILE}")
+    ENDFOREACH(_RC_FILE)
+    ADD_CUSTOM_COMMAND(OUTPUT ${outfile}
+      COMMAND ${QT_RCC_EXECUTABLE}
+      ARGS ${rcc_options} -name ${outfilename} -o ${outfile} ${infile}
+      MAIN_DEPENDENCY ${infile}
+      DEPENDS ${_RC_DEPENDS})
+    SET(${outfiles} ${${outfiles}} ${outfile})
+  ENDFOREACH (it)
+
+ENDMACRO (QT4_ADD_RESOURCES)
+
+
+MACRO(QT4_ADD_DBUS_INTERFACE _sources _interface _basename)
+  GET_FILENAME_COMPONENT(_infile ${_interface} ABSOLUTE)
+  SET(_header ${CMAKE_CURRENT_BINARY_DIR}/${_basename}.h)
+  SET(_impl   ${CMAKE_CURRENT_BINARY_DIR}/${_basename}.cpp)
+  SET(_moc    ${CMAKE_CURRENT_BINARY_DIR}/${_basename}.moc)
+
+  # handling more arguments (as in FindQt4.cmake from KDE4) will come soon, then
+  # _params will be used for more than just -m
+  SET(_params -m)
+
+  ADD_CUSTOM_COMMAND(OUTPUT ${_impl} ${_header}
+      COMMAND ${QT_DBUSXML2CPP_EXECUTABLE} ${_params} -p ${_basename} ${_infile}
+      DEPENDS ${_infile})
+
+  SET_SOURCE_FILES_PROPERTIES(${_impl} PROPERTIES SKIP_AUTOMOC TRUE)
+
+  QT4_GENERATE_MOC(${_header} ${_moc})
+
+  SET(${_sources} ${${_sources}} ${_impl} ${_header} ${_moc})
+  MACRO_ADD_FILE_DEPENDENCIES(${_impl} ${_moc})
+
+ENDMACRO(QT4_ADD_DBUS_INTERFACE)
+
+
+MACRO(QT4_ADD_DBUS_INTERFACES _sources)
+  FOREACH (_current_FILE ${ARGN})
+    GET_FILENAME_COMPONENT(_infile ${_current_FILE} ABSOLUTE)
+    # get the part before the ".xml" suffix
+    STRING(REGEX REPLACE "(.*[/\\.])?([^\\.]+)\\.xml" "\\2" _basename ${_current_FILE})
+    STRING(TOLOWER ${_basename} _basename)
+    QT4_ADD_DBUS_INTERFACE(${_sources} ${_infile} ${_basename}interface)
+  ENDFOREACH (_current_FILE)
+ENDMACRO(QT4_ADD_DBUS_INTERFACES)
+
+
+MACRO(QT4_GENERATE_DBUS_INTERFACE _header) # _customName OPTIONS -some -options )
+  QT4_EXTRACT_OPTIONS(_customName _qt4_dbus_options ${ARGN})
+
+  GET_FILENAME_COMPONENT(_in_file ${_header} ABSOLUTE)
+  GET_FILENAME_COMPONENT(_basename ${_header} NAME_WE)
+
+  IF (_customName)
+    SET(_target ${CMAKE_CURRENT_BINARY_DIR}/${_customName})
+  ELSE (_customName)
+    SET(_target ${CMAKE_CURRENT_BINARY_DIR}/${_basename}.xml)
+  ENDIF (_customName)
+
+  ADD_CUSTOM_COMMAND(OUTPUT ${_target}
+      COMMAND ${QT_DBUSCPP2XML_EXECUTABLE} ${_qt4_dbus_options} ${_in_file} -o ${_target}
+      DEPENDS ${_in_file}
+  )
+ENDMACRO(QT4_GENERATE_DBUS_INTERFACE)
+
+
+MACRO(QT4_ADD_DBUS_ADAPTOR _sources _xml_file _include _parentClass) # _optionalBasename _optionalClassName)
+  GET_FILENAME_COMPONENT(_infile ${_xml_file} ABSOLUTE)
+
+  SET(_optionalBasename "${ARGV4}")
+  IF (_optionalBasename)
+    SET(_basename ${_optionalBasename} )
+  ELSE (_optionalBasename)
+    STRING(REGEX REPLACE "(.*[/\\.])?([^\\.]+)\\.xml" "\\2adaptor" _basename ${_infile})
+    STRING(TOLOWER ${_basename} _basename)
+  ENDIF (_optionalBasename)
+
+  SET(_optionalClassName "${ARGV5}")
+  SET(_header ${CMAKE_CURRENT_BINARY_DIR}/${_basename}.h)
+  SET(_impl   ${CMAKE_CURRENT_BINARY_DIR}/${_basename}.cpp)
+  SET(_moc    ${CMAKE_CURRENT_BINARY_DIR}/${_basename}.moc)
+
+  IF(_optionalClassName)
+    ADD_CUSTOM_COMMAND(OUTPUT ${_impl} ${_header}
+       COMMAND ${QT_DBUSXML2CPP_EXECUTABLE} -m -a ${_basename} -c ${_optionalClassName} -i ${_include} -l ${_parentClass} ${_infile}
+       DEPENDS ${_infile}
+    )
+  ELSE(_optionalClassName)
+    ADD_CUSTOM_COMMAND(OUTPUT ${_impl} ${_header}
+       COMMAND ${QT_DBUSXML2CPP_EXECUTABLE} -m -a ${_basename} -i ${_include} -l ${_parentClass} ${_infile}
+       DEPENDS ${_infile}
+     )
+  ENDIF(_optionalClassName)
+
+  QT4_GENERATE_MOC(${_header} ${_moc})
+  SET_SOURCE_FILES_PROPERTIES(${_impl} PROPERTIES SKIP_AUTOMOC TRUE)
+  MACRO_ADD_FILE_DEPENDENCIES(${_impl} ${_moc})
+
+  SET(${_sources} ${${_sources}} ${_impl} ${_header} ${_moc})
+ENDMACRO(QT4_ADD_DBUS_ADAPTOR)
+
+
+MACRO(QT4_AUTOMOC)
+  QT4_GET_MOC_FLAGS(_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.
+    # This is required to make uic 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)
+          IF(EXISTS ${_abs_PATH}/${_basename}.hpp)
+            SET(_header ${_abs_PATH}/${_basename}.hpp)
+          ELSE(EXISTS ${_abs_PATH}/${_basename}.hpp)
+            SET(_header ${_abs_PATH}/${_basename}.h)
+          ENDIF(EXISTS ${_abs_PATH}/${_basename}.hpp)
+          SET(_moc    ${CMAKE_CURRENT_BINARY_DIR}/${_current_MOC})
+          QT4_CREATE_MOC_COMMAND(${_header} ${_moc} "${_moc_INCS}" "")
+          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)
+
+
+MACRO(QT4_CREATE_TRANSLATION _qm_files)
+   QT4_EXTRACT_OPTIONS(_lupdate_files _lupdate_options ${ARGN})
+   SET(_my_sources)
+   SET(_my_dirs)
+   SET(_my_tsfiles)
+   SET(_ts_pro)
+   FOREACH (_file ${_lupdate_files})
+     GET_FILENAME_COMPONENT(_ext ${_file} EXT)
+     GET_FILENAME_COMPONENT(_abs_FILE ${_file} ABSOLUTE)
+     IF(_ext MATCHES "ts")
+       LIST(APPEND _my_tsfiles ${_abs_FILE})
+     ELSE(_ext MATCHES "ts")
+       IF(NOT _ext)
+         LIST(APPEND _my_dirs ${_abs_FILE})
+       ELSE(NOT _ext)
+         LIST(APPEND _my_sources ${_abs_FILE})
+       ENDIF(NOT _ext)
+     ENDIF(_ext MATCHES "ts")
+   ENDFOREACH(_file)
+   FOREACH(_ts_file ${_my_tsfiles})
+     IF(_my_sources)
+       # make a .pro file to call lupdate on, so we don't make our commands too
+       # long for some systems
+       GET_FILENAME_COMPONENT(_ts_name ${_ts_file} NAME_WE)
+       SET(_ts_pro ${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/${_ts_name}_lupdate.pro)
+       SET(_pro_srcs)
+       FOREACH(_pro_src ${_my_sources})
+         SET(_pro_srcs "${_pro_srcs} \"${_pro_src}\"")
+       ENDFOREACH(_pro_src ${_my_sources})
+       FILE(WRITE ${_ts_pro} "SOURCES = ${_pro_srcs}")
+     ENDIF(_my_sources)
+     ADD_CUSTOM_COMMAND(OUTPUT ${_ts_file}
+        COMMAND ${QT_LUPDATE_EXECUTABLE}
+        ARGS ${_lupdate_options} ${_ts_pro} ${_my_dirs} -ts ${_ts_file}
+        DEPENDS ${_my_sources} ${_ts_pro})
+   ENDFOREACH(_ts_file)
+   QT4_ADD_TRANSLATION(${_qm_files} ${_my_tsfiles})
+ENDMACRO(QT4_CREATE_TRANSLATION)
+
+
+MACRO(QT4_ADD_TRANSLATION _qm_files)
+  FOREACH (_current_FILE ${ARGN})
+    GET_FILENAME_COMPONENT(_abs_FILE ${_current_FILE} ABSOLUTE)
+    GET_FILENAME_COMPONENT(qm ${_abs_FILE} NAME_WE)
+    GET_SOURCE_FILE_PROPERTY(output_location ${_abs_FILE} OUTPUT_LOCATION)
+    IF(output_location)
+      FILE(MAKE_DIRECTORY "${output_location}")
+      SET(qm "${output_location}/${qm}.qm")
+    ELSE(output_location)
+      SET(qm "${CMAKE_CURRENT_BINARY_DIR}/${qm}.qm")
+    ENDIF(output_location)
+
+    ADD_CUSTOM_COMMAND(OUTPUT ${qm}
+       COMMAND ${QT_LRELEASE_EXECUTABLE}
+       ARGS ${_abs_FILE} -qm ${qm}
+       DEPENDS ${_abs_FILE}
+    )
+    SET(${_qm_files} ${${_qm_files}} ${qm})
+  ENDFOREACH (_current_FILE)
+ENDMACRO(QT4_ADD_TRANSLATION)