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);}

可参考文章

QT之系统托盘
QT之自定义菜单
QT之样式styleSheet

下代码

QT二级菜单

结尾

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