Added translations to the cmake build (1451236)

Fixed bugs:
  - https://launchpad.net/bugs/1451236

(bzr r14304)

4 files changed, 253 insertions, 2 deletions

diff --git a/CMakeScripts/ConfigChecks.cmake b/CMakeScripts/ConfigChecks.cmake
index 905465448..7ec6863eb 100644
--- a/CMakeScripts/ConfigChecks.cmake
+++ b/CMakeScripts/ConfigChecks.cmake
@@ -19,7 +19,6 @@ CHECK_FUNCTION_EXISTS(fpsetmask HAVE_FPSETMASK)
 CHECK_INCLUDE_FILES(gc/gc.h HAVE_GC_GC_H)
 CHECK_INCLUDE_FILES(gc.h HAVE_GC_H)
 CHECK_INCLUDE_FILES(getopt.h HAVE_GETOPT_H)
-CHECK_FUNCTION_EXISTS(gettext HAVE_GETTEXT)
 CHECK_FUNCTION_EXISTS(gettimeofday HAVE_GETTIMEOFDAY)
 CHECK_FUNCTION_EXISTS(gtk_window_fullscreen HAVE_GTK_WINDOW_FULLSCREEN)
 CHECK_FUNCTION_EXISTS(gtk_window_set_default_icon_from_file HAVE_GTK_WINDOW_SET_DEFAULT_ICON_FROM_FILE)
diff --git a/CMakeScripts/ConfigPaths.cmake b/CMakeScripts/ConfigPaths.cmake
index 770e0c6ad..848e293f4 100644
--- a/CMakeScripts/ConfigPaths.cmake
+++ b/CMakeScripts/ConfigPaths.cmake
@@ -5,7 +5,9 @@ IF(WIN32)
     set(SHARE_INSTALL "share" CACHE STRING "Data file install path. Must be a relative path (from CMAKE_INSTALL_PREFIX), with no trailing slash.")
 ELSE(WIN32)
     # TODO: check and change this to correct value:
-    SET(PACKAGE_LOCALE_DIR "locale")
+  if(NOT PACKAGE_LOCALE_DIR)
+    SET(PACKAGE_LOCALE_DIR "${CMAKE_INSTALL_PREFIX}/share/locale") # packagers might overwrite this
+  endif(NOT PACKAGE_LOCALE_DIR)
 
   if(NOT SHARE_INSTALL)
     set(SHARE_INSTALL "share" CACHE STRING "Data file install path. Must be a relative path (from CMAKE_INSTALL_PREFIX), with no trailing slash.")
diff --git a/CMakeScripts/DefineDependsandFlags.cmake b/CMakeScripts/DefineDependsandFlags.cmake
index a4dad21b1..8d6405265 100644
--- a/CMakeScripts/DefineDependsandFlags.cmake
+++ b/CMakeScripts/DefineDependsandFlags.cmake
@@ -355,6 +355,19 @@ if(WITH_IMAGE_MAGICK)
 endif()
 
 include(${CMAKE_CURRENT_LIST_DIR}/IncludeJava.cmake)
+
+set(ENABLE_NLS OFF)
+if(WITH_NLS)
+  find_package(Gettext)
+  if(GETTEXT_FOUND)
+    message(STATUS "Found gettext + msgfmt to convert language files. Translation enabled")
+    set(ENABLE_NLS ON)
+  else(GETTEXT_FOUND)
+    message(STATUS "Cannot find gettext + msgfmt to convert language file. Translation won't be enabled")
+  endif(GETTEXT_FOUND)
+endif(WITH_NLS)
+
+
 # end Dependencies
 
 list(REMOVE_DUPLICATES INKSCAPE_LIBS)
diff --git a/CMakeScripts/FindGettext.cmake b/CMakeScripts/FindGettext.cmake
new file mode 100644
index 000000000..753040b40
--- /dev/null
+++ b/CMakeScripts/FindGettext.cmake
@@ -0,0 +1,237 @@
+#.rst:
+# FindGettext
+# -----------
+#
+# Find GNU gettext tools
+#
+# This module looks for the GNU gettext tools.  This module defines the
+# following values:
+#
+# ::
+#
+#   GETTEXT_MSGMERGE_EXECUTABLE: the full path to the msgmerge tool.
+#   GETTEXT_MSGFMT_EXECUTABLE: the full path to the msgfmt tool.
+#   GETTEXT_FOUND: True if gettext has been found.
+#   GETTEXT_VERSION_STRING: the version of gettext found (since CMake 2.8.8)
+#
+#
+#
+# Additionally it provides the following macros:
+# GETTEXT_CREATE_TRANSLATIONS ( outputFile [ALL] file1 ...  fileN )
+#
+# ::
+#
+#     This will create a target "translations" which will convert the
+#     given input po files into the binary output mo file. If the
+#     ALL option is used, the translations will also be created when
+#     building the default target.
+#
+# GETTEXT_PROCESS_POT( <potfile> [ALL] [INSTALL_DESTINATION <destdir>]
+# LANGUAGES <lang1> <lang2> ...  )
+#
+# ::
+#
+#      Process the given pot file to mo files.
+#      If INSTALL_DESTINATION is given then automatically install rules will be created,
+#      the language subdirectory will be taken into account (by default use share/locale/).
+#      If ALL is specified, the pot file is processed when building the all traget.
+#      It creates a custom target "potfile".
+#
+# GETTEXT_PROCESS_PO_FILES( <lang> [ALL] [INSTALL_DESTINATION <dir>]
+# PO_FILES <po1> <po2> ...  )
+#
+# ::
+#
+#      Process the given po files to mo files for the given language.
+#      If INSTALL_DESTINATION is given then automatically install rules will be created,
+#      the language subdirectory will be taken into account (by default use share/locale/).
+#      If ALL is specified, the po files are processed when building the all traget.
+#      It creates a custom target "pofiles".
+
+#=============================================================================
+# Copyright 2007-2009 Kitware, Inc.
+# Copyright 2007      Alexander Neundorf <neundorf@kde.org>
+#
+# 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 distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+#=============================================================================
+# This file got changed for Inkscape's purposes to name the .mo files installed with
+# GETTEXT_PROCESS_PO_FILES ${CMAKE_PROJECT_NAME}.mo instead of <language>.mo
+
+find_program(GETTEXT_MSGMERGE_EXECUTABLE msgmerge)
+
+find_program(GETTEXT_MSGFMT_EXECUTABLE msgfmt)
+
+if(GETTEXT_MSGMERGE_EXECUTABLE)
+   execute_process(COMMAND ${GETTEXT_MSGMERGE_EXECUTABLE} --version
+                  OUTPUT_VARIABLE gettext_version
+                  ERROR_QUIET
+                  OUTPUT_STRIP_TRAILING_WHITESPACE)
+   if (gettext_version MATCHES "^msgmerge \\(.*\\) [0-9]")
+      string(REGEX REPLACE "^msgmerge \\([^\\)]*\\) ([0-9\\.]+[^ \n]*).*" "\\1" GETTEXT_VERSION_STRING "${gettext_version}")
+   endif()
+   unset(gettext_version)
+endif()
+
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(Gettext
+                                  REQUIRED_VARS GETTEXT_MSGMERGE_EXECUTABLE GETTEXT_MSGFMT_EXECUTABLE
+                                  VERSION_VAR GETTEXT_VERSION_STRING)
+
+include(CMakeParseArguments)
+
+function(_GETTEXT_GET_UNIQUE_TARGET_NAME _name _unique_name)
+   set(propertyName "_GETTEXT_UNIQUE_COUNTER_${_name}")
+   get_property(currentCounter GLOBAL PROPERTY "${propertyName}")
+   if(NOT currentCounter)
+      set(currentCounter 1)
+   endif()
+   set(${_unique_name} "${_name}_${currentCounter}" PARENT_SCOPE)
+   math(EXPR currentCounter "${currentCounter} + 1")
+   set_property(GLOBAL PROPERTY ${propertyName} ${currentCounter} )
+endfunction()
+
+macro(GETTEXT_CREATE_TRANSLATIONS _potFile _firstPoFileArg)
+   # make it a real variable, so we can modify it here
+   set(_firstPoFile "${_firstPoFileArg}")
+
+   set(_gmoFiles)
+   get_filename_component(_potName ${_potFile} NAME)
+   string(REGEX REPLACE "^(.+)(\\.[^.]+)$" "\\1" _potBasename ${_potName})
+   get_filename_component(_absPotFile ${_potFile} ABSOLUTE)
+
+   set(_addToAll)
+   if(${_firstPoFile} STREQUAL "ALL")
+      set(_addToAll "ALL")
+      set(_firstPoFile)
+   endif()
+
+   foreach (_currentPoFile ${_firstPoFile} ${ARGN})
+      get_filename_component(_absFile ${_currentPoFile} ABSOLUTE)
+      get_filename_component(_abs_PATH ${_absFile} PATH)
+      get_filename_component(_lang ${_absFile} NAME_WE)
+      set(_gmoFile ${CMAKE_CURRENT_BINARY_DIR}/${_lang}.gmo)
+
+      add_custom_command(
+         OUTPUT ${_gmoFile}
+         COMMAND ${GETTEXT_MSGMERGE_EXECUTABLE} --quiet --update --backup=none -s ${_absFile} ${_absPotFile}
+         COMMAND ${GETTEXT_MSGFMT_EXECUTABLE} -o ${_gmoFile} ${_absFile}
+         DEPENDS ${_absPotFile} ${_absFile}
+      )
+
+      install(FILES ${_gmoFile} DESTINATION share/locale/${_lang}/LC_MESSAGES RENAME ${_potBasename}.mo)
+      set(_gmoFiles ${_gmoFiles} ${_gmoFile})
+
+   endforeach ()
+
+   if(NOT TARGET translations)
+      add_custom_target(translations)
+   endif()
+
+  _GETTEXT_GET_UNIQUE_TARGET_NAME(translations uniqueTargetName)
+
+   add_custom_target(${uniqueTargetName} ${_addToAll} DEPENDS ${_gmoFiles})
+
+   add_dependencies(translations ${uniqueTargetName})
+
+endmacro()
+
+
+function(GETTEXT_PROCESS_POT_FILE _potFile)
+   set(_gmoFiles)
+   set(_options ALL)
+   set(_oneValueArgs INSTALL_DESTINATION)
+   set(_multiValueArgs LANGUAGES)
+
+   CMAKE_PARSE_ARGUMENTS(_parsedArguments "${_options}" "${_oneValueArgs}" "${_multiValueArgs}" ${ARGN})
+
+   get_filename_component(_potName ${_potFile} NAME)
+   string(REGEX REPLACE "^(.+)(\\.[^.]+)$" "\\1" _potBasename ${_potName})
+   get_filename_component(_absPotFile ${_potFile} ABSOLUTE)
+
+   foreach (_lang ${_parsedArguments_LANGUAGES})
+      set(_poFile  "${CMAKE_CURRENT_BINARY_DIR}/${_lang}.po")
+      set(_gmoFile "${CMAKE_CURRENT_BINARY_DIR}/${_lang}.gmo")
+
+      add_custom_command(
+         OUTPUT "${_poFile}"
+         COMMAND ${GETTEXT_MSGMERGE_EXECUTABLE} --quiet --update --backup=none -s ${_poFile} ${_absPotFile}
+         DEPENDS ${_absPotFile}
+      )
+
+      add_custom_command(
+         OUTPUT "${_gmoFile}"
+         COMMAND ${GETTEXT_MSGFMT_EXECUTABLE} -o ${_gmoFile} ${_poFile}
+         DEPENDS ${_absPotFile} ${_poFile}
+      )
+
+      if(_parsedArguments_INSTALL_DESTINATION)
+         install(FILES ${_gmoFile} DESTINATION ${_parsedArguments_INSTALL_DESTINATION}/${_lang}/LC_MESSAGES RENAME ${_potBasename}.mo)
+      endif()
+      list(APPEND _gmoFiles ${_gmoFile})
+   endforeach ()
+
+  if(NOT TARGET potfiles)
+     add_custom_target(potfiles)
+  endif()
+
+  _GETTEXT_GET_UNIQUE_TARGET_NAME( potfiles uniqueTargetName)
+
+   if(_parsedArguments_ALL)
+      add_custom_target(${uniqueTargetName} ALL DEPENDS ${_gmoFiles})
+   else()
+      add_custom_target(${uniqueTargetName} DEPENDS ${_gmoFiles})
+   endif()
+
+   add_dependencies(potfiles ${uniqueTargetName})
+
+endfunction()
+
+
+function(GETTEXT_PROCESS_PO_FILES _lang)
+   set(_options ALL)
+   set(_oneValueArgs INSTALL_DESTINATION)
+   set(_multiValueArgs PO_FILES)
+   set(_gmoFiles)
+
+   CMAKE_PARSE_ARGUMENTS(_parsedArguments "${_options}" "${_oneValueArgs}" "${_multiValueArgs}" ${ARGN})
+
+   foreach(_current_PO_FILE ${_parsedArguments_PO_FILES})
+      get_filename_component(_name ${_current_PO_FILE} NAME)
+      string(REGEX REPLACE "^(.+)(\\.[^.]+)$" "\\1" _basename ${_name})
+      set(_gmoFile ${CMAKE_CURRENT_BINARY_DIR}/${_basename}.gmo)
+      add_custom_command(OUTPUT ${_gmoFile}
+            COMMAND ${GETTEXT_MSGFMT_EXECUTABLE} -o ${_gmoFile} ${_current_PO_FILE}
+            WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
+            DEPENDS ${_current_PO_FILE}
+         )
+
+      if(_parsedArguments_INSTALL_DESTINATION)
+         install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${_basename}.gmo DESTINATION ${_parsedArguments_INSTALL_DESTINATION}/${_lang}/LC_MESSAGES/ RENAME ${CMAKE_PROJECT_NAME}.mo)
+      endif()
+      list(APPEND _gmoFiles ${_gmoFile})
+   endforeach()
+
+
+  if(NOT TARGET pofiles)
+     add_custom_target(pofiles)
+  endif()
+
+  _GETTEXT_GET_UNIQUE_TARGET_NAME( pofiles uniqueTargetName)
+
+   if(_parsedArguments_ALL)
+      add_custom_target(${uniqueTargetName} ALL DEPENDS ${_gmoFiles})
+   else()
+      add_custom_target(${uniqueTargetName} DEPENDS ${_gmoFiles})
+   endif()
+
+   add_dependencies(pofiles ${uniqueTargetName})
+
+endfunction()