main.cpp

#include <QGuiApplication>
#include <QQmlApplicationEngine>

#include <QThread>
#include <QObject>
#include <QDebug>
#include <QQmlContext>

#include "windowmanager.h"
#include "xcbthread.h"


int main(int argc, char *argv[])
{
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
#endif
    QGuiApplication app(argc, argv);

    // 创建并启动 XCB 事件处理线程
    XcbThread xcbThread;
    qRegisterMetaType<xcb_window_t>("xcb_window_t");
    xcbThread.start();
    QQmlApplicationEngine engine;
    const QUrl url(QStringLiteral("qrc:/main.qml"));
    // 创建 WindowManager 实例，用于管理窗口信息
    WindowManager windowManager;
    // 将 windowManager 注册到 QML 上下文
    // 注册自定义类型
    qRegisterMetaType<QVector<WindowInfo_1>>("QVector<WindowInfo_1>");
    qRegisterMetaType<WindowInfo_1>("WindowInfo_1");
    engine.rootContext()->setContextProperty("windowManager", &windowManager);
    // 根据新创建的窗口进行更新为前台应用
    QObject::connect(&xcbThread, &XcbThread::windowInfoChanged,
                     &windowManager, &WindowManager::setWindowInfo_qiantai,
                     Qt::QueuedConnection);
    // 更新前台应用
    QObject::connect(&xcbThread, &XcbThread::windowInfoChanged_qiantai,
                     &windowManager, &WindowManager::setWindowInfo_qiantai,
                     Qt::QueuedConnection);
    // 更新后台应用
    QObject::connect(&xcbThread, &XcbThread::windowInfoChanged_houtai,
                     &windowManager, &WindowManager::setWindowInfo_houtai,
                     Qt::QueuedConnection);
    // 使用 XCB 线程中的信号来更新 WindowManager 中的已经被摧毁窗口信息
    QObject::connect(&xcbThread, &XcbThread::windowDestroyChanged,
                     &windowManager, &WindowManager::WindowDetroyInfo,
                     Qt::QueuedConnection);
    // 在主线程中加载 QML 应用程序
    QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
                     &app, [url](QObject *obj, const QUrl &objUrl) {
        if (!obj && url == objUrl)
            QCoreApplication::exit(-1);
    }, Qt::QueuedConnection);
    engine.load(url);
    int ret = app.exec();

    // 等待 XCB 线程结束
    xcbThread.quit();
    xcbThread.wait();

    return ret;
}