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QT 右键菜单

2016-06-21 13:52 316 查看
1. widget 控件 ContextMenuPolicy 设置为 CustomContextMenu

2. include 文件中声明菜单的指针

QMenu *listRightMenu;


3. 初始化函数中进行构建

QMenu *listRightMenu = new QMenu(ui->tableWidget);

QAction *addUnitAction = listRightMenu->addAction(QString::fromLocal8Bit("添加通信点"));
QAction *editUnitAction = listRightMenu->addAction(QString::fromLocal8Bit("修改通信点"));
QAction *deleteUnitAction = listRightMenu->addAction(QString::fromLocal8Bit("删除通信点"));
connect(addUnitAction,SIGNAL(triggered(bool)),this,SLOT(addUnit()));

this->listRightMenu = listRightMenu;


4. 右键信号中进行调用

<pre name="code" class="cpp">void MainWindow::on_tableWidget_customContextMenuRequested(const QPoint &pos)
{

if(this->listRightMenu)
{
this->listRightMenu->exec(QCursor::pos());
}
}


                                            
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