ui->textEdit->setContextMenuPolicy(Qt::CustomContextMenu);
connect(ui->textEdit,SIGNAL(customContextMenuRequested(QPoint)),this,SLOT(ShowTextEditMenu(QPoint)));
ui->textEdit->setContextMenuPolicy(Qt::CustomContextMenu);
connect(ui->textEdit,SIGNAL(customContextMenuRequested(QPoint)),this,SLOT(ShowTextEditMenu(QPoint)));