【1061】【5.5.1.0】【显示】插件区的功能面板背景色调异常

[SuperEffie]

SUMMARY | 问题概要

【bug链接】：https://pms.uniontech.com/bug-view-211649.html
【问题备注】：社区版v23 beta中暂未复现该bug

SOFTWARE/OS VERSIONS | 软件/系统版本信息

[环境]
1.内核：Linux uos-PC 4.19.0-loongson-3-desktop #6032
2.镜像地址：https://cdimage.uniontech.com/daily-iso/1060-update1/professional/daily-stable/20230724/
3.镜像：uos-desktop-20-professional-1061-loongarch64.iso
4.仓库：
deb  [trusted=yes] https://aptly.uniontech.com/pkg/eagle-1061/release-candidate/44CQMTA2MSBEREXjgJE3LjI05o-Q5rWLMjAyMy0wNy0yMiAxODo0MjowNw/  unstable main
deb  [trusted=yes] https://aptly.uniontech.com/pkg/nonfree-eagle-1061/release-candidate/44CQMTA2MSBEREXjgJE3LjI05o-Q5rWLMjAyMy0wNy0yMiAxODo0MjowNw/  unstable non-free
5.应用版本：dde-control-center  5.6.16-1
6.硬件设备：清华同方3A5000笔记本

PRE-REQUIREMENT | 预置条件

无线网络和有线网络均为已连接

STEPS TO REPRODUCE | 复现步骤

1.测试机安装镜像+仓库升级，然后重启后进入系统，连接uniontech-m
2.打开任务栏插件区的音量、网络、磁盘、蓝牙等面板，检查面板背景色

OBSERVED RESULT | 观察到的结果

插件区的功能面板背景色调异常

EXPECTED RESULT | 期望的结果

插件区的功能面板背景色调显示正常

ADDITIONAL INFORMATION | 额外补充

No response

[babyfengfjx]

@kegechen 专业版反馈的问题，请帮忙分析，原bug链接：https://pms.uniontech.com/bug-view-211649.html。

[kegechen]

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    QWidget w;
    w.setAttribute(Qt::WA_TranslucentBackground);


    w.setAttribute(Qt::WA_NativeWindow); // DPlatformWindowHandle  ensureWindowHandle
    
    // fix
    if (w.testAttribute(Qt::WA_TranslucentBackground))
    {
         QSurfaceFormat format = w.windowHandle()->format();
         const int oldAlpha = format.alphaBufferSize();
         if (oldAlpha != 8) {
             format.setAlphaBufferSize(8);
             w.windowHandle()->setFormat(format);
        }
    }

    w.windowHandle()->winId();           // DWindowManagerHelper::currentWorkspaceWindows

    w.resize({300, 300});
    w.show();
    return a.exec();
}

[kegechen]

setAttribute(Qt::WA_TranslucentBackground) 时如果窗口 handle 未创建不会设置透明通道 （ updateIsTranslucent ）