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C++: Make it possible to split up the C++ code generated for a .slint file

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Add a COMPILATION_UNITS argument to slint_target_sources that defines into how many .cpp files to split up a .slint file. The new default is now one.
This commit is contained in:
Simon Hausmann 2024-08-18 15:04:50 +02:00 • committed by Simon Hausmann
parent 12f5343cd8
commit c25a03d6f7
6 changed files with 160 additions and 31 deletions
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23
api/cpp/cmake/SlintMacro.cmake
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@ -12,7 +12,7 @@ set_property(CACHE DEFAULT_SLINT_EMBED_RESOURCES PROPERTY STRINGS
function(SLINT_TARGET_SOURCES target)
# Parse the NAMESPACE argument
cmake_parse_arguments(SLINT_TARGET_SOURCES "" "NAMESPACE" "LIBRARY_PATHS" ${ARGN})
cmake_parse_arguments(SLINT_TARGET_SOURCES "" "NAMESPACE;COMPILATION_UNITS" "LIBRARY_PATHS" ${ARGN})
get_target_property(enabled_features Slint::Slint SLINT_ENABLED_FEATURES)
if (("EXPERIMENTAL" IN_LIST enabled_features) AND ("SYSTEM_TESTING" IN_LIST enabled_features))
@ -30,6 +30,15 @@ function(SLINT_TARGET_SOURCES target)
set(_SLINT_CPP_NAMESPACE_ARG "--cpp-namespace=${SLINT_TARGET_SOURCES_NAMESPACE}")
endif()
if (DEFINED SLINT_TARGET_SOURCES_COMPILATION_UNITS)
if (NOT SLINT_TARGET_SOURCES_COMPILATION_UNITS MATCHES "^[0-9]+$")
message(FATAL_ERROR "Expected number, got '${SLINT_TARGET_SOURCES_COMPILATION_UNITS}' for COMPILATION_UNITS argument")
endif()
set(compilation_units ${SLINT_TARGET_SOURCES_COMPILATION_UNITS})
else()
set(compilation_units 1)
endif()
while (SLINT_TARGET_SOURCES_LIBRARY_PATHS)
list(POP_FRONT SLINT_TARGET_SOURCES_LIBRARY_PATHS name_and_path)
list(APPEND _SLINT_CPP_LIBRARY_PATHS_ARG "-L")
@ -48,8 +57,15 @@ function(SLINT_TARGET_SOURCES target)
set(scale_factor_target_prop "$<TARGET_PROPERTY:${target},SLINT_SCALE_FACTOR>")
set(scale_factor_arg "$<IF:$<STREQUAL:${scale_factor_target_prop},>,,--scale-factor=${scale_factor_target_prop}>")
if (compilation_units GREATER 0)
foreach(cpp_num RANGE 1 ${compilation_units})
list(APPEND cpp_files "${CMAKE_CURRENT_BINARY_DIR}/slint_generated_${_SLINT_BASE_NAME}_${cpp_num}.cpp")
endforeach()
list(TRANSFORM cpp_files PREPEND "--cpp-file=" OUTPUT_VARIABLE cpp_files_arg)
endif()
add_custom_command(
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${_SLINT_BASE_NAME}.h
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${_SLINT_BASE_NAME}.h ${cpp_files}
COMMAND ${SLINT_COMPILER_ENV} $<TARGET_FILE:Slint::slint-compiler> ${_SLINT_ABSOLUTE}
-o ${CMAKE_CURRENT_BINARY_DIR}/${_SLINT_BASE_NAME}.h
--depfile ${CMAKE_CURRENT_BINARY_DIR}/${_SLINT_BASE_NAME}.d
@ -59,13 +75,14 @@ function(SLINT_TARGET_SOURCES target)
${_SLINT_CPP_NAMESPACE_ARG}
${_SLINT_CPP_LIBRARY_PATHS_ARG}
${scale_factor_arg}
${cpp_files_arg}
DEPENDS Slint::slint-compiler ${_SLINT_ABSOLUTE}
COMMENT "Generating ${_SLINT_BASE_NAME}.h"
DEPFILE ${CMAKE_CURRENT_BINARY_DIR}/${_SLINT_BASE_NAME}.d
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
)
target_sources(${target} PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/${_SLINT_BASE_NAME}.h)
target_sources(${target} PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/${_SLINT_BASE_NAME}.h ${cpp_files})
endforeach()
target_include_directories(${target} PUBLIC ${CMAKE_CURRENT_BINARY_DIR})
endfunction()