解决cmake编译时*ui，*h存放在不同文件夹下时*.ui无法生成ui_*.h问题

使用的Qt版本为6.8.1， cmake版本为3.31.0-rc1。

遇到问题原因

原本的目录结构比较乱，代码文件一多就很不好找，在对文件进行分类管理的过程中发现*ui文件无法生成ui_*.h

有问题部分的cmake

本来想使用qt_wrap_ui和set(CMAKE_AUTOUIC ON)让他自动生成ui_*.h的，但是失败了

cmake_minimum_required(VERSION 3.16)
project(Usim LANGUAGES CXX)

set(CMAKE_AUTOUIC ON)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_VERBOSE_MAKEFILE ON)

set(CMAKE_PREFIX_PATH "D:/Qt/Qt6.8.1/6.8.1/msvc2022_64")    

find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets Charts)
qt_standard_project_setup()

set(SOURCE_DIR ${PROJECT_SOURCE_DIR}/src)
set(MOUDLE_DIR ${SOURCE_DIR}/moudle)
set(UI_DIR ${PROJECT_SOURCE_DIR}/ui)
set(INCLUDE_DIR ${PROJECT_SOURCE_DIR}/include)
set(VTK_DIR "C:/Program Files (x86)/VTK/include/vtk-9.4")
include_directories(${UI_DIR} ${VTK_DIR} ${SOURCE_DIR} ${INCLUDE_DIR} ${MOUDLE_DIR})

# 处理 .ui 文件
file(GLOB UI_FILES ${UI_DIR}/*.ui)
qt_wrap_ui(UI_HEADERS ${UI_FILES})
message(STATUS "UI_HEADERS: "${UI_HEADERS})

# 处理源文件和头文件
file(GLOB PROJECT_SOURCES 
    ${SOURCE_DIR}/main.cpp
)

file(GLOB MOUDLE_SOURCES 
    ${MOUDLE_DIR}/*.cpp
    ${INCLUDE_DIR}/*.h
)
list(APPEND PROJECT_SOURCES ${UI_HEADERS} ${MOUDLE_SOURCES})

正确的完整cmake写法

使用list(APPEND CMAKE_AUTOUIC_SEARCH_PATHS ${UI_DIR})替换file(GLOB UI_FILES ${UI_DIR}/*.ui)和qt_wrap_ui(UI_HEADERS ${UI_FILES})即可。

cmake_minimum_required(VERSION 3.16)
project(Usim LANGUAGES CXX)

set(CMAKE_AUTOUIC ON)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_VERBOSE_MAKEFILE ON)
set(CMAKE_PREFIX_PATH "D:/Qt/Qt6.8.1/6.8.1/msvc2022_64")
set(CMAKE_AUTOUIC ON)

set(VERSION_MAJOR 2)
set(VERSION_MINOR 0)
set(VERSION_PATCH 1)

find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets Charts)
qt_standard_project_setup()

# 设置源文件、头文件、ui文件路径
set(SOURCE_DIR ${PROJECT_SOURCE_DIR}/src)
set(SOURCE_MOUDLE_DIR ${SOURCE_DIR}/moudle)
set(SOURCE_UI_DIR ${SOURCE_DIR}/ui)
set(UI_DIR ${PROJECT_SOURCE_DIR}/ui)
set(INCLUDE_DIR ${PROJECT_SOURCE_DIR}/include)
set(VTK_DIR "C:/Program Files (x86)/VTK/include/vtk-9.4")
include_directories(${UI_DIR} ${VTK_DIR} ${SOURCE_DIR} ${INCLUDE_DIR} ${SOURCE_MOUDLE_DIR} ${SOURCE_UI_DIR})
file(GLOB PROJECT_SOURCES 
    ${SOURCE_DIR}/main.cpp
    ${SOURCE_MOUDLE_DIR}/*.cpp
    ${SOURCE_UI_DIR}/*.cpp
)
file(GLOB INCLUDE_SOURCES 
    ${INCLUDE_DIR}/*.h
)
list(APPEND CMAKE_AUTOUIC_SEARCH_PATHS ${UI_DIR})
list(APPEND PROJECT_SOURCES ${INCLUDE_SOURCES})
add_executable(${PROJECT_NAME} ${PROJECT_SOURCES})

# 设置 CGNS 库
if(CMAKE_BUILD_TYPE MATCHES "Debug")
    set(CGNS_LIB_PATH "${PROJECT_SOURCE_DIR}/libs/debug")
elseif(CMAKE_BUILD_TYPE STREQUAL "Release")
    set(CGNS_LIB_PATH "${PROJECT_SOURCE_DIR}/libs/release")
endif()
set(CGNS_LIBS 
    cgns libhdf5 libszip libzlib
)
foreach(cgns_lib ${CGNS_LIBS})
    add_library(${cgns_lib} STATIC IMPORTED)
    set_target_properties(${cgns_lib} PROPERTIES IMPORTED_LOCATION "${CGNS_LIB_PATH}/${cgns_lib}.lib")
endforeach()

# 设置 VTK 库
set(VTK_LIB_PATH "C:/Program Files (x86)/VTK/lib")
set(VTK_LIBS
    vtksys-9.4 vtkImagingCore-9.4 vtkIOImage-9.4 vtkGUISupportQt-9.4
    vtkCommonCore-9.4 vtkCommonDataModel-9.4 vtkCommonExecutionModel-9.4
    vtkFiltersCore-9.4 vtkFiltersGeneral-9.4 vtkFiltersGeometry-9.4 vtkFiltersModeling-9.4 vtkFiltersSources-9.4
    vtkRenderingCore-9.4 vtkRenderingAnnotation-9.4 vtkRenderingContext2D-9.4 vtkRenderingOpenGL2-9.4
    vtkInteractionStyle-9.4 vtkInteractionWidgets-9.4 vtkInteractionImage-9.4
)
if(CMAKE_BUILD_TYPE MATCHES "Debug")
    set(VTK_LIBS_DEBUG "")
    foreach(lib ${VTK_LIBS})
        list(APPEND VTK_LIBS_DEBUG "${lib}d")
    endforeach()
    set(VTK_LIBS ${VTK_LIBS_DEBUG})
endif()
foreach(vtk_lib ${VTK_LIBS})
    add_library(${vtk_lib} STATIC IMPORTED)
    set_target_properties(${vtk_lib} PROPERTIES IMPORTED_LOCATION "${VTK_LIB_PATH}/${vtk_lib}.lib")
endforeach()

# 链接库
target_link_libraries(${PROJECT_NAME}
    PUBLIC
        Qt6::Core Qt6::Gui Qt6::Widgets Qt6::Charts
        ${CGNS_LIBS}
        ${VTK_LIBS}
)

# 定义翻译文件
set(TRANSLATIONS
    "${PROJECT_SOURCE_DIR}/translations/zh_CN.ts"
)
find_program(LUPDATE_EXECUTABLE lupdate)
find_program(LRELEASE_EXECUTABLE lrelease)
foreach(_ts_file ${TRANSLATIONS})
    execute_process(COMMAND ${LUPDATE_EXECUTABLE} -recursive ${CMAKE_SOURCE_DIR} -ts ${_ts_file})
    execute_process(COMMAND ${LRELEASE_EXECUTABLE} ${_ts_file})
endforeach()

# 资源文件
qt_add_resources(PROJECT_SOURCES resources/Resource.qrc)

# 生成的是windows下的可执行文件
set_target_properties(${PROJECT_NAME}
    PROPERTIES
        WIN32_EXECUTABLE TRUE
)