Question

我有一个简单的Qt5应用程序，我想用CMake制作它。它只有两个文件：.h文件和.cpp文件。这是代码：

.cpp文件

#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QQmlComponent>
#include <QVector>
#include "px_enum.h"
#include <QQuickStyle>

int main(int argc, char *argv[])
{
QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
QQuickStyle::setStyle("Material");
QGuiApplication app(argc, argv);

QQmlApplicationEngine engine;
PX_UI::registerEnums();
engine.load(QUrl(QStringLiteral("qrc:/main.qml")));

return app.exec();
}

.h文件

#ifndef PX_ENUM_H
#define PX_ENUM_H
#include <QObject>
#include <QQmlEngine>


namespace PX_UI{
Q_NAMESPACE
enum TOP_BAR_BUTTON_TYPE{
    TOP_BAR_CLOSE_BTN = 0,
    TOP_BAR_MINIMIZE_BTN ,
    TOP_BAR_MAXIMIZE_BTN
};
Q_ENUM_NS(TOP_BAR_BUTTON_TYPE)
static void registerEnums()
{
    qmlRegisterUncreatableMetaObject( PX_UI::staticMetaObject, 
"PX_UI_ENUMS",1, 0,"PX_UI","Error: only enums");
}

}

#endif // PX_ENUM_H

CMakeList.txt

cmake_minimum_required(VERSION 3.1.0)

project(TestApp)

find_package(Qt5Core CONFIG REQUIRED)
find_package(Qt5Quick CONFIG REQUIRED)
find_package(Qt5QuickControls2 CONFIG REQUIRED)

add_definitions( ${QT_DEFINITIONS} )

set(CMAKE_CXX_STANDARD 14)

set ( SOURCES
    main.cpp
    )

set ( MOC_HEADERS
    px_enum.h
    )


set ( RESOURCES
    qml.qrc
    )
add_library(${PROJECT_NAME}
    SHARED
    px_enum.h
    main.cpp
    )
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTOUIC ON)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
set(CMAKE_PREFIX_PATH 
/home/sajad/Installed_Softs/Qt/5.11.2/gcc_64/lib/cmake)
# Populate a CMake variable with the sources
# Tell CMake to create the helloworld executable
QT5_WRAP_CPP(MOC_SRCS ${MOC_HEADERS})

set_target_properties(${PROJECT_NAME} PROPERTIES AUTOMOC TRUE)
# Use the Widgets module from Qt 5
target_link_libraries(${PROJECT_NAME} Qt5::Quick)
target_link_libraries(${PROJECT_NAME} Qt5::QuickControls2)
target_link_libraries(${PROJECT_NAME} Qt5::Core)

现在，当我编译代码时出现此错误：

px_enum.h：8：5：错误：“ Q_NAMESPACE”未命名类型

我已经使用qmake成功编译了此代码。 CMakeList.txt文件的哪一部分错误？

CMake未找到Q_NAMESPACE宏

0 个答案: