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sdrangel/cmake/include/Qt5ExternalResources.cmake

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CMake

#
# External resource support for CMake's Qt5 support, version 1.0
# written by Grzegorz Antoniak <ga -at- anadoxin -dot- org>
# http://github.com/antekone/qt5-external-resources-cmake
#
# Tested on CMake 3.2.2
# qt5_parse_rcc_depends function
#
# Based on original Qt5CoreMacros.cmake/qt5_add_resources function.
function(QT5_PARSE_RCC_DEPENDS infile)
set(_RC_DEPENDS)
if(EXISTS "${infile}")
# parse file for dependencies
# all files are absolute paths or relative to the location of the qrc file
file(READ "${infile}" _RC_FILE_CONTENTS)
string(REGEX MATCHALL "<file[^<]+" _RC_FILES "${_RC_FILE_CONTENTS}")
foreach(_RC_FILE ${_RC_FILES})
string(REGEX REPLACE "^<file[^>]*>" "" _RC_FILE "${_RC_FILE}")
if(NOT IS_ABSOLUTE "${_RC_FILE}")
set(_RC_FILE "${rc_path}/${_RC_FILE}")
endif()
set(_RC_DEPENDS ${_RC_DEPENDS} "${_RC_FILE}")
endforeach()
# Since this cmake macro is doing the dependency scanning for these files,
# let's make a configured file and add it as a dependency so cmake is run
# again when dependencies need to be recomputed.
qt5_make_output_file("${infile}" "" "qrc.depends" out_depends)
configure_file("${infile}" "${out_depends}" COPYONLY)
set(out_depends_return ${out_depends} PARENT_SCOPE)
set(_RC_DEPENDS_RETURN ${_RC_DEPENDS} PARENT_SCOPE)
else()
# The .qrc file does not exist (yet). Let's add a dependency and hope
# that it will be generated later
set(out_depends)
endif()
endfunction()
# qt5_add_external_resources function
#
# Usage:
#
# qt5_add_external_resources(outfile res/infile.qrc)
#
# This should generate ${CMAKE_BINARY_DIR}/outfile.rcc, ready to be used inside
# the application. You can also use it like this:
#
# qt5_add_external_resources(outfile res/infile.qrc OPTIONS -someoption)
#
# if you would like to add some option to the RCC's command line.
function(QT5_ADD_EXTERNAL_RESOURCES rccfilename qrcfilename)
set(options)
set(oneValueArgs)
set(multiValueArgs OPTIONS)
cmake_parse_arguments(_RCC "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
set(rcc_files ${_RCC_UNPARSED_ARGUMENTS})
set(rcc_options ${_RCC_OPTIONS})
get_filename_component(outfilename ${rccfilename} NAME_WE)
get_filename_component(infile ${qrcfilename} ABSOLUTE)
get_filename_component(rc_path ${infile} PATH)
set(outfile ${CMAKE_CURRENT_BINARY_DIR}/${outfilename}.rcc)
qt5_parse_rcc_depends(${infile})
add_custom_command(OUTPUT ${outfile}
COMMAND ${Qt5Core_RCC_EXECUTABLE}
ARGS ${rcc_options} -name ${outfilename} -o ${outfile} ${infile} -binary
MAIN_DEPENDENCY ${infile}
DEPENDS ${_RC_DEPENDS_RETURN} "${out_depends_return}" VERBATIM)
set(_RC_TARGETNAME "qrc_external_${outfilename}")
add_custom_target(${_RC_TARGETNAME} ALL DEPENDS ${outfile})
endfunction()
# vim:set et: