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#
# handle translation using gettext
#
project(i18n)
# List of the supported locales.
set(xtrkcad_locale_ids
cy_GB
de_DE
fi
fr_FR
pt_BR
ru
)
# Misc variables
set(xtc_locale_targets)
set(potfile "${i18n_BINARY_DIR}/${XTRKCAD_PACKAGE}.pot")
set(xgtkeywords
--keyword=_
--keyword=p_
--keyword=N_
)
#
# Find programs, registry is used on Windows to find the installation path
find_program(xtc_xgettext xgettext PATHS [HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\;InstallPath]/bin )
find_program(xtc_msginit msginit PATHS [HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\;InstallPath]/bin )
find_program(xtc_msgmerge msgmerge PATHS [HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\;InstallPath]/bin )
find_program(xtc_msgfmt msgfmt PATHS [HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\;InstallPath]/bin )
set(xtc_translator "" CACHE FILEPATH "Translator program for editing the .po files.")
mark_as_advanced(xtc_xgettext xtc_msginit xtc_msgmerge
xtc_msgfmt xtc_translator)
#
# Extract the translatable strings from text files
#
# Custom string extractor utility
add_executable(stripmsg stripmsg.c)
# Create custom message files list
file(GLOB_RECURSE xtc_custom_msg_files
${XTrkCAD_SOURCE_DIR}/*.xtq
${XTrkCAD_SOURCE_DIR}/*.xtr
${XTrkCAD_SOURCE_DIR}/*.tip)
# Extract translatable strings from custom message files to one temporary file
add_custom_target(
custmsg
COMMAND stripmsg ${xtc_custom_msg_files} > ${CMAKE_CURRENT_BINARY_DIR}/custmsg.h
DEPENDS stripmsg ${xtc_custom_msg_files}
)
set_target_properties(
stripmsg custmsg
PROPERTIES FOLDER i18n
)
#
# Create the list of the original source files.
get_target_property(sourcefiles xtrkcad-lib SOURCES)
foreach( file ${sourcefiles})
#
# do not scan dependent objects / libraries for translatable strings
string(FIND "${file}" "TARGET_OBJECTS:" result)
if(result EQUAL -1)
#
# bllnhlp is generated in the build directory and has to be special cased
string(COMPARE NOTEQUAL ${file} "bllnhlp.c" RESULT)
if(RESULT)
cmake_path(ABSOLUTE_PATH file BASE_DIRECTORY ${xtrkcad-lib_SOURCE_DIR} )
cmake_path(RELATIVE_PATH file BASE_DIRECTORY ${i18n_SOURCE_DIR})
list(APPEND xgt_source_files ${file})
endif()
endif()
endforeach()
#
# add file with translatable strings
set(SOURCEFILES
"${xtrkcad-lib_SOURCE_DIR}/misc.c"
"${wlib_SOURCE_DIR}/mswlib/mswmisc.c"
"${messagefile_BINARY_DIR}/messages.h"
"${CMAKE_CURRENT_BINARY_DIR}/custmsg.h"
"${XTrkCAD_BINARY_DIR}/app/help/bllnhlp.c"
)
foreach( file ${SOURCEFILES})
cmake_path(RELATIVE_PATH
file
BASE_DIRECTORY ${i18n_SOURCE_DIR}
)
list(APPEND xgt_source_files ${file})
endforeach()
# Extract strings and create xtrkcad.pot
add_custom_command(
OUTPUT ${potfile}
COMMAND ${xtc_xgettext}
${xgtkeywords}
--add-comments=i18n
-d ${GETTEXT_PACKAGE}
-F
-o ${potfile}
--from-code=ISO-8859-15 ${xgt_source_files}
DEPENDS custmsg
WORKING_DIRECTORY ${i18n_SOURCE_DIR}
)
#
# function to create and update the po-file for a locale
function(updatepofile locale)
set(pofile ${i18n_SOURCE_DIR}/${locale}.po)
set(mofile_dir ${i18n_BINARY_DIR}/${locale}/LC_MESSAGES)
set(mofile ${mofile_dir}/${XTRKCAD_PACKAGE}.mo)
# Merge .pot file changes to .po file
add_custom_target(msgmerge-${locale}
COMMAND ${xtc_msgmerge} -U --backup=none ${pofile} ${potfile}
COMMAND ${xtc_msgfmt} -c -v -o ${mofile} ${pofile}
DEPENDS messages ${pofile}
)
# If new locale id was added, add .po file creation routine
if(NOT EXISTS ${pofile})
add_custom_command(
OUTPUT ${pofile}
COMMAND ${xtc_msginit} -l ${locale} -o ${pofile} -i ${potfile}
DEPENDS ${potfile}
)
endif()
file(MAKE_DIRECTORY ${mofile_dir})
# If translator program was given, add target to edit .po files with it
if(xtc_translator)
add_custom_target(msgtranslate-${locale}
COMMAND ${xtc_translator} ${pofile}
)
endif()
# Compile .po file to binary format .mo file
add_custom_command(
OUTPUT ${mofile}
COMMAND ${xtc_msgfmt} -c -v -o ${mofile} ${pofile}
DEPENDS ${pofile}
)
# Install all .mo files
install(
FILES ${mofile}
DESTINATION ${XTRKCAD_LOCALE_INSTALL_DIR}/${locale}/LC_MESSAGES
)
set_target_properties(
msgmerge-${locale}
PROPERTIES FOLDER i18n
)
set(xtc_locale_targets
${xtc_locale_targets}
${i18n_BINARY_DIR}/${localeid}/LC_MESSAGES/xtrkcad.mo
PARENT_SCOPE
)
endfunction()
#
# Loop through the list of the supported locales
foreach(localeid ${xtrkcad_locale_ids})
updatepofile(${localeid})
endforeach(localeid)
# xTrackCAD must be built before this to
# make sure that the dynamically generated files messages.h and bllnhlp.c are
# up to date.
add_custom_target(messages
DEPENDS xtrkcad ${potfile}
)
set_target_properties(
messages
PROPERTIES FOLDER i18n
)
# Utility target for building all translations
add_custom_target(alltranslations ALL
DEPENDS ${xtc_locale_targets}
)
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