在我的CMake项目中,我正在使用Qt的元对象编译器遇到了问题。我正在构建一个包含以下代码并采用pimpl习语的共享库。在调用CMake并进行编译后,我得到:
AUTOGEN:错误:~/tools/Project/gui/src/mainWindow.cpp:该文件包含Q_OBJECT宏,但未包括“mainWindow.moc”! gui/CMakeFiles/gui_automoc.dir/build.make:57:目标‘gui/CMakeFiles/gui_automoc’失败 make [2]:*** [gui/CMakeFiles/gui_automoc] 错误1 CMakeFiles / Makefile2:234:目标‘gui/CMakeFiles/gui_automoc.dir/all’失败
我不知道自己做错了什么或者在项目中如何正确地结合带有Q_OBJECT宏的src文件。请帮忙 = /
gui/include/gui/mainWindow.hpp
#include <QMainWindow>
#include <string>
class MainWindow : public QMainWindow {
class MainWindowImpl;
public:
MainWindow(QWidget* parent = nullptr);
private:
MainWindowImpl* pimpl_;
};
gui/src/mainWindow.cpp
#include "gui/mainWindow.hpp"
class MainWindow::MainWindowImpl : public QWidget{
Q_OBJECT
public:
explicit MainWindowImpl(MainWindow *parent);
private:
MainWindow &parent_;
};
MainWindow::MainWindowImpl::MainWindowImpl(MainWindow *parent)
: QWidget{parent}, parent_(*parent) {}
MainWindow::MainWindow(QWidget *parent) : QMainWindow{parent} {
pimpl_ = new MainWindowImpl{this};
setCentralWidget(pimpl_);
}
我这样编译库:
cmake_minimum_required(VERSION 3.5.1 FATAL_ERROR)
project(gui)
QT5_WRAP_CPP(MOC_Files
include/gui/mainWindow.hpp
)
add_library(${PROJECT_NAME}
SHARED
src/mainWindow.cpp
${MOC_Files}
)
add_library(gui::gui ALIAS ${PROJECT_NAME})
target_include_directories(${PROJECT_NAME}
PUBLIC
${PROJECT_SOURCE_DIR}/include
)
set_target_properties(${PROJECT_NAME} PROPERTIES AUTOMOC TRUE)
target_link_libraries(${PROJECT_NAME}
PUBLIC
Qt5::Widgets
Qt5::Core
Qt5::Xml
Qt5::OpenGL
Qt5::Gui
)
install(TARGETS ${PROJECT_NAME} DESTINATION lib)
现在我想将这个库链接到我的可执行文件中。
应用程序 / main.cpp#include <QApplication>
#include "gui/mainWindow.hpp"
int main(int argc, char *argv[]) {
QApplication app{argc, argv};
MainWindow gui{};
gui.show();
return app.exec();
}
使用下面的 CMakelists.txt 文件,在其中链接到 gui 库。
cmake_minimum_required (VERSION 3.5.1 FATAL_ERROR)
project (app)
add_executable(${PROJECT_NAME}
main.cpp
)
target_include_directories(${PROJECT_NAME}
PUBLIC ${PROJECT_BINARY_DIR}
)
target_link_libraries(${PROJECT_NAME}
PRIVATE
gui::gui
Qt5::Widgets
Qt5::Core
Qt5::Xml
Qt5::OpenGL
Qt5::Gui
)
install(TARGETS ${PROJECT_NAME}
DESTINATION bin)
我的项目的顶层CMakeLists文件如下所示
cmake_minimum_required (VERSION 3.5.1 FATAL_ERROR)
project(project)
set(CMAKE_INSTALL_DIR ${PROJECT_SOURCE_DIR}/obj)
set(CMAKE_INSTALL_PREFIX ${CMAKE_INSTALL_DIR})
# add our local path to the runtime path
SET(CMAKE_INSTALL_RPATH "$ORIGIN:${CMAKE_INSTALL_PREFIX}/lib")
# also add the link paths to the runtime paths
SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
find_package(Qt5 COMPONENTS Core Widgets Xml OpenGL Gui REQUIRED)
## --> Build libraries and applications <--
add_subdirectory(gui)
add_subdirectory(apps)
gui/include/gui/mainWindow.cpp
中添加一行#include "mainWindow.moc"
吗? - TsyvarevmainWindow.cpp
中按照这里建议的方式使用#include "gui/mainWindow.moc"
? - Steve Lorimerqt5_wrap_cpp(MOC_OUT ${INPUT})
,然后将${MOC_OUT}
传递给我的库或二进制文件的源列表。你可能想尝试一下这种方法。 - Steve Lorimer