我一直在研究一個使用cmake作爲構建系統並在QtCreator中工作的項目。有子項目(一些Qt相關,其他只是簡單的C++),直到現在,他們都能夠找到頭文件,因此提供了自動完成功能。QtCreator CMake項目自動完成不總是工作嗎?
在某些時候,我添加了一個Qt項目,並注意到我的編輯器沒有找到Qt項目的頭文件。真奇怪的是他們通過QtCreator'Build-> Build All'編譯並運行得很好。這幾乎就像QtCreator無法找到他們的自動完成。
我環顧四周,用戶在QtCreator的早期版本中發現問題,發現Qt類,但找到他們定義的頭文件似乎沒有問題。
我把一個簡化的「項目」放在一起,並添加了兩個新的Qt Widget應用程序項目,主窗口是QDialog而不是QMainWindow。我添加了下面的CMakeLists.txt文件,每個項目:
My Standard CMake File For Qt
cmake_minimum_required(VERSION 3.0.2)
project("FooProj")
set(EXECUTABLE_NAME "Foo")
# Find Qt packages.
find_package(Qt5Core)
find_package(Qt5Widgets)
find_package(Qt5Gui)
set(CMAKE_AUTOMOC ON)
set(SOURCES
"src/main.cpp"
"src/Dialog.cpp"
)
set(HEADERS
"includes/Dialog.h"
)
set(UI_FORMS
"forms/Dialog.ui"
)
set(RESOURCES_FILES
"resources/resources.qrc"
)
# Convert Qt UI and resource files to C/C++ files.
qt5_wrap_ui(UI_HEADERS ${UI_FORMS})
qt5_add_resources(RESOURCES ${RESOURCES_FILES})
# Define the executable to be built.
add_executable(${EXECUTABLE_NAME}
${SOURCES}
${HEADERS}
${UI_HEADERS}
${RESOURCES}
)
# Include paths for this project.
target_include_directories(${EXECUTABLE_NAME} PRIVATE
"${CMAKE_CURRENT_SOURCE_DIR}/includes"
"${CMAKE_CURRENT_BINARY_DIR}"
)
# Link to appropriate libraries.
target_link_libraries(${EXECUTABLE_NAME}
Qt5::Core
Qt5::Widgets
Qt5::Gui
)
# Set distribution location and project structure.
set(DIST_DIR "${CMAKE_BINARY_DIR}/dist/${EXECUTABLE_NAME}")
set_property(TARGET ${EXECUTABLE_NAME} PROPERTY FOLDER "Guis")
# Setup distribution environment and copy final executable.
add_custom_command(TARGET ${EXECUTABLE_NAME}
POST_BUILD
COMMAND ${CMAKE_COMMAND} -E make_directory ${DIST_DIR}
COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:${EXECUTABLE_NAME}> ${DIST_DIR}
)
# OS specific deployment setup for sytems without Qt installed.
if(WIN32)
add_custom_command(TARGET ${EXECUTABLE_NAME}
POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_CURRENT_SOURCE_DIR}/QtDeploymentFiles/run.bat" ${DIST_DIR}/${EXECUTABLE_NAME}.bat
COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_CURRENT_SOURCE_DIR}/QtDeploymentFiles/qt.conf" ${DIST_DIR}
)
elseif(UNIX AND NOT APPLE)
add_custom_command(TARGET ${EXECUTABLE_NAME}
POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_CURRENT_SOURCE_DIR}/QtDeploymentFiles/run.sh" ${DIST_DIR}/${EXECUTABLE_NAME}.sh
)
endif()
隨着這一頂級的CMakeLists.txt:
Top Level CMakeLists.txt
cmake_minimum_required(VERSION 3.0.2)
project("Test")
add_subdirectory("FooProj")
add_subdirectory("BarProj")
一切都使得,編譯並運行就好了。自動完成也可以。
我添加了一個我需要的Qt庫項目,即使在使用庫文件時,一切仍然正常。這裏是我的圖書館CMake的文件:
Qt Library CMakeLists.txt
cmake_minimum_required(VERSION 3.0.2)
project("QtLib")
set(LIB_NAME "QtLib")
# Find Qt packages.
find_package(Qt5Core)
find_package(Qt5Widgets)
set(CMAKE_AUTOMOC ON)
# Set source files to be built.
set(SOURCES
"src/LibFile1.cpp"
"src/LibFile2.cpp"
.
.
.
)
set(HEADERS
"includes/LibFile1Header.h"
"includes/LibFile2Header.h"
"includes/OtherHeaders.h"
.
.
.
)
add_library(${LIB_NAME} ${SOURCES} ${HEADERS})
set_property(TARGET ${LIB_NAME} PROPERTY FOLDER "Libs")
target_include_directories(${LIB_NAME} PRIVATE
"${Qt5Core_INCLUDE_DIRS}"
"${Qt5Widgets_INCLUDE_DIRS}"
"${CMAKE_CURRENT_BINARY_DIR}"
)
target_include_directories(${LIB_NAME} PUBLIC
"${CMAKE_CURRENT_SOURCE_DIR}/includes"
)
target_link_libraries(${LIB_NAME}
Qt5::Core
Qt5::Widgets
)
最後我想補充我的真實項目之一的結構如下(即沒有自動完成者之一):
-forms
-MainForm.ui
-resources
-resources.qrc
-resource files and dirs
-src
-main.cpp
-MainWindow.cpp
-includes
-MainWindow.h
的CMake文件與上面的完全一樣。所有東西都可以編譯,編譯和運行,但是自動完成功能會停止工作。我還注意到沒有找到ui_MainWindow.h(在我的項目二進制目錄中自動生成的那個)。
真奇怪的是,如果我只是完全相同的文件沒有改變,只是作爲一個獨立的項目打開它,自動完成的作品。
有沒有關於我的cmake文件或這是一個Qt相關的問題?同樣的事情發生在VS2013中,這讓我覺得它不是QtCreator相關的,但我不確定。