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cmake_minimum_required(VERSION 3.16)
cmake_policy(VERSION 3.16)
# Enable policy to run automoc on generated files.
if(POLICY CMP0071)
cmake_policy(SET CMP0071 NEW)
endif()
project(scriptableapplication)
# Set CPP standard to C++11 minimum.
set(CMAKE_CXX_STANDARD 11)
# Find required Qt packages.
find_package(Qt5 5.12 REQUIRED COMPONENTS Core Gui Widgets)
# Use provided python interpreter if given.
if(NOT python_interpreter)
find_program(python_interpreter NAMES python3 python)
endif()
message(STATUS "Using python interpreter: ${python_interpreter}")
# Macro to get various pyside / python include / link flags.
macro(pyside2_config option output_var)
if(${ARGC} GREATER 2)
set(is_list ${ARGV2})
else()
set(is_list "")
endif()
execute_process(
COMMAND ${python_interpreter} "${CMAKE_SOURCE_DIR}/../utils/pyside2_config.py"
${option}
OUTPUT_VARIABLE ${output_var}
OUTPUT_STRIP_TRAILING_WHITESPACE)
if ("${${output_var}}" STREQUAL "")
message(FATAL_ERROR "Error: Calling pyside2_config.py ${option} returned no output.")
endif()
if(is_list)
string (REPLACE " " ";" ${output_var} "${${output_var}}")
endif()
endmacro()
# Query for the shiboken2-generator path, PySide2 path, Python path, include paths and linker flags.
pyside2_config(--shiboken2-module-path SHIBOKEN2_MODULE_PATH)
pyside2_config(--shiboken2-generator-path SHIBOKEN2_GENERATOR_PATH)
pyside2_config(--pyside2-path PYSIDE2_PATH)
pyside2_config(--python-include-path PYTHON_INCLUDE_DIR)
pyside2_config(--shiboken2-generator-include-path SHIBOKEN2_GENERATOR_INCLUDE_DIR 1)
pyside2_config(--pyside2-include-path PYSIDE2_INCLUDE_DIR 1)
pyside2_config(--python-link-flags-cmake PYTHON_LINKING_DATA 0)
pyside2_config(--shiboken2-module-shared-libraries-cmake SHIBOKEN2_MODULE_SHARED_LIBRARIES 0)
pyside2_config(--pyside2-shared-libraries-cmake PYSIDE2_SHARED_LIBRARIES 0)
set(SHIBOKEN_PATH "${SHIBOKEN2_GENERATOR_PATH}/shiboken2${CMAKE_EXECUTABLE_SUFFIX}")
if(NOT EXISTS ${SHIBOKEN_PATH})
message(FATAL_ERROR "Shiboken executable not found at path: ${SHIBOKEN_PATH}")
endif()
# Get all relevant Qt include dirs, to pass them on to shiboken.
get_property(QT_CORE_INCLUDE_DIRS TARGET Qt5::Core PROPERTY INTERFACE_INCLUDE_DIRECTORIES)
get_property(QT_GUI_INCLUDE_DIRS TARGET Qt5::Gui PROPERTY INTERFACE_INCLUDE_DIRECTORIES)
get_property(QT_WIDGETS_INCLUDE_DIRS TARGET Qt5::Widgets PROPERTY INTERFACE_INCLUDE_DIRECTORIES)
set(QT_INCLUDE_DIRS ${QT_CORE_INCLUDE_DIRS} ${QT_GUI_INCLUDE_DIRS} ${QT_WIDGETS_INCLUDE_DIRS})
set(INCLUDES "")
foreach(INCLUDE_DIR ${QT_INCLUDE_DIRS})
list(APPEND INCLUDES "-I${INCLUDE_DIR}")
endforeach()
# On macOS, check if Qt is a framework build. This affects how include paths should be handled.
get_target_property(QtCore_is_framework Qt5::Core FRAMEWORK)
if (QtCore_is_framework)
get_target_property(qt_core_library_location Qt5::Core LOCATION)
get_filename_component(qt_core_library_location_dir "${qt_core_library_location}" DIRECTORY)
get_filename_component(lib_dir "${qt_core_library_location_dir}/../" ABSOLUTE)
list(APPEND INCLUDES "--framework-include-paths=${lib_dir}")
endif()
# Set up the options to pass to shiboken.
set(WRAPPED_HEADER ${CMAKE_SOURCE_DIR}/wrappedclasses.h)
set(TYPESYSTEM_FILE ${CMAKE_SOURCE_DIR}/scriptableapplication.xml)
set(SHIBOKEN_OPTIONS --generator-set=shiboken --enable-parent-ctor-heuristic
--enable-pyside-extensions --enable-return-value-heuristic --use-isnull-as-nb_nonzero
--avoid-protected-hack
${INCLUDES}
-I${CMAKE_SOURCE_DIR}
-T${CMAKE_SOURCE_DIR}
-T${PYSIDE2_PATH}/typesystems
--output-directory=${CMAKE_CURRENT_BINARY_DIR}
)
# Specify which sources will be generated by shiboken, and their dependencies.
set(GENERATED_SOURCES
${CMAKE_CURRENT_BINARY_DIR}/AppLib/applib_module_wrapper.cpp
${CMAKE_CURRENT_BINARY_DIR}/AppLib/mainwindow_wrapper.cpp)
set(GENERATED_SOURCES_DEPENDENCIES
${WRAPPED_HEADER}
${TYPESYSTEM_FILE}
)
# Add custom target to run shiboken.
add_custom_command(OUTPUT ${GENERATED_SOURCES}
COMMAND ${SHIBOKEN_PATH}
${SHIBOKEN_OPTIONS} ${WRAPPED_HEADER} ${TYPESYSTEM_FILE}
DEPENDS ${GENERATED_SOURCES_DEPENDENCIES}
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
COMMENT "Running generator for ${TYPESYSTEM_FILE}.")
# Set the CPP files.
set(SOURCES
mainwindow.cpp
pythonutils.cpp
${GENERATED_SOURCES}
)
# We need to include the headers for the module bindings that we use.
set(PYSIDE2_ADDITIONAL_INCLUDES "")
foreach(INCLUDE_DIR ${PYSIDE2_INCLUDE_DIR})
list(APPEND PYSIDE2_ADDITIONAL_INCLUDES "${INCLUDE_DIR}/QtCore")
list(APPEND PYSIDE2_ADDITIONAL_INCLUDES "${INCLUDE_DIR}/QtGui")
list(APPEND PYSIDE2_ADDITIONAL_INCLUDES "${INCLUDE_DIR}/QtWidgets")
endforeach()
# =============================================================================================
# !!! (The section below is deployment related, so in a real world application you will want to
# take care of this properly with some custom script or tool).
# =============================================================================================
# Enable rpaths so that the example can be executed from the build dir.
set(CMAKE_SKIP_BUILD_RPATH FALSE)
set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
set(CMAKE_INSTALL_RPATH ${PYSIDE2_PATH} ${SHIBOKEN2_MODULE_PATH})
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
# =============================================================================================
# !!! End of dubious section.
# =============================================================================================
# Declare executable so we can enable automoc.
add_executable(${PROJECT_NAME} main.cpp)
# Enable automoc.
set_property(TARGET ${PROJECT_NAME} PROPERTY AUTOMOC 1)
# Add the rest of the sources.
target_sources(${PROJECT_NAME} PUBLIC ${SOURCES})
# Apply relevant include and link flags.
target_include_directories(${PROJECT_NAME} PRIVATE ${PYTHON_INCLUDE_DIR})
target_include_directories(${PROJECT_NAME} PRIVATE ${SHIBOKEN2_GENERATOR_INCLUDE_DIR})
target_include_directories(${PROJECT_NAME} PRIVATE ${PYSIDE2_INCLUDE_DIR})
target_include_directories(${PROJECT_NAME} PRIVATE ${PYSIDE2_ADDITIONAL_INCLUDES})
target_include_directories(${PROJECT_NAME} PRIVATE ${CMAKE_SOURCE_DIR})
target_link_libraries(${PROJECT_NAME} PRIVATE Qt5::Widgets)
target_link_libraries(${PROJECT_NAME} PRIVATE ${SHIBOKEN2_MODULE_SHARED_LIBRARIES})
target_link_libraries(${PROJECT_NAME} PRIVATE ${PYSIDE2_SHARED_LIBRARIES})
# Find and link to the python library.
list(GET PYTHON_LINKING_DATA 0 PYTHON_LIBDIR)
list(GET PYTHON_LINKING_DATA 1 PYTHON_LIB)
find_library(PYTHON_LINK_FLAGS ${PYTHON_LIB} PATHS ${PYTHON_LIBDIR} HINTS ${PYTHON_LIBDIR})
target_link_libraries(${PROJECT_NAME} PRIVATE ${PYTHON_LINK_FLAGS})
# Same as CONFIG += no_keywords to avoid syntax errors in object.h due to the usage of the word Slot
target_compile_definitions(${PROJECT_NAME} PRIVATE QT_NO_KEYWORDS)
if(WIN32)
# =============================================================================================
# !!! (The section below is deployment related, so in a real world application you will want to
# take care of this properly (this is simply to eliminate errors that users usually encounter.
# =============================================================================================
# Circumvent some "#pragma comment(lib)"s in "include/pyconfig.h" which might force to link
# against a wrong python shared library.
set(PYTHON_VERSIONS_LIST 3 32 33 34 35 36 37 38)
set(PYTHON_ADDITIONAL_LINK_FLAGS "")
foreach(VER ${PYTHON_VERSIONS_LIST})
set(PYTHON_ADDITIONAL_LINK_FLAGS
"${PYTHON_ADDITIONAL_LINK_FLAGS} /NODEFAULTLIB:\"python${VER}_d.lib\"")
set(PYTHON_ADDITIONAL_LINK_FLAGS
"${PYTHON_ADDITIONAL_LINK_FLAGS} /NODEFAULTLIB:\"python${VER}.lib\"")
endforeach()
set_target_properties(${PROJECT_NAME} PROPERTIES LINK_FLAGS "${PYTHON_ADDITIONAL_LINK_FLAGS}")
# Add custom target to hard link PySide2 shared libraries (just like in qmake example), so you
# don't have to set PATH manually to point to the PySide2 package.
set(shared_libraries ${SHIBOKEN2_MODULE_SHARED_LIBRARIES} ${PYSIDE2_SHARED_LIBRARIES})
foreach(LIBRARY_PATH ${shared_libraries})
string(REGEX REPLACE ".lib$" ".dll" LIBRARY_PATH ${LIBRARY_PATH})
get_filename_component(BASE_NAME ${LIBRARY_PATH} NAME)
file(TO_NATIVE_PATH ${LIBRARY_PATH} SOURCE_PATH)
file(TO_NATIVE_PATH "${CMAKE_CURRENT_BINARY_DIR}/${BASE_NAME}" DEST_PATH)
add_custom_command(OUTPUT "${BASE_NAME}"
COMMAND mklink /H "${DEST_PATH}" "${SOURCE_PATH}"
DEPENDS ${LIBRARY_PATH}
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
COMMENT "Creating hardlink to PySide2 shared library ${BASE_NAME}")
# Fake target that depends on the previous one, but has special ALL keyword, which means
# it will always be executed.
add_custom_target("fake_${BASE_NAME}" ALL DEPENDS ${BASE_NAME})
endforeach()
# =============================================================================================
# !!! End of dubious section.
# =============================================================================================
endif()
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