QT之二级菜单

QT之二级菜单

开场白

今天我们一起来了解下，在我们QT中，二级菜单是如何实现的，在上篇我们学习了QT之系统托盘，QT之自定义菜单, QT之样式styleSheet。今天我们在这基础上，增加二级菜单的功能。

效果图

大家注意下这里箭头，不是用的默认效果哦，还是自定义的好看哈！O(∩_∩)下面这张图示是默认的。

上代码

void SysTray::addSysTrayMenu()
{
    CustomMenu* customMenu = new CustomMenu(m_parent);
    customMenu->addCustomMenu("onGame", TRAY_ICON, tr("onGame"));
    customMenu->addSeparator();
    customMenu->addCustomMenu("onShow", TRAY_ICON, tr("onShow"));
    customMenu->addSeparator();
    customMenu->addCustomMenu("onQuit", CLOSE_MENU, tr("onQuit"));

    //子菜单添加和主菜单都是一样流程。
    CustomMenu* customSubMenu = new CustomMenu(m_parent);
    customSubMenu->addCustomMenu("onBottom", TRAY_ICON_ONDNF, tr("onBottom"));
    customSubMenu->addCustomMenu("onMusic", TRAY_ICON_ONMUSIC, tr("onMusic"));
    customSubMenu->addCustomMenu("onFire", TRAY_ICON_ONFIRE, tr("onFire"));
    customSubMenu->addCustomMenu("onCar", TRAY_ICON_ONCAR, tr("onCar"));
    customSubMenu->addCustomMenu("onLol", TRAY_ICON_ONLOL, tr("onLol"));
    //关键在这里，为QQ游戏添加子菜单。
    customMenu->getAction("onGame")->setMenu(customSubMenu);

    connect(customMenu->getAction("onShow"), SIGNAL(triggered(bool)), m_parent, SLOT(onShowNormal()));
    connect(customMenu->getAction("onQuit"), SIGNAL(triggered(bool)), m_parent, SLOT(onShowQuit()));
    customMenu->exec(QCursor::pos());
    delete customMenu;
    delete customSubMenu;
}

//自定义效果图
QMenu {
    border-width:2;
    border-image:url(:/Demo/Resources/common_menuborder.png);
}
QMenu::item { padding: 6px 24px 6px 28px;
}

QMenu::icon { padding: 0px 0px 0px 9px;
}

QMenu::separator { margin-left:24;
    margin-right:4;
    border-image: url(:/Demo/Resources/menu_separate.png);
}
QMenu::item:selected { border-image:url(:/Demo/Resources/menu_hover.png);
    padding: 6px 24px 6px 28px;
}
QMenu::item:hover { border-image:url(:/Demo/Resources/menu_hover.png);
    padding: 6px 24px 6px 28px;
}

QMenu::right-arrow { image: url(:/Demo/Resources/common/arrow_up.png);
}