菜单式弹出窗体

弹出式窗体他的要求如下:
   1.点击按钮弹出这个窗体在按钮旁边,并可编辑内容。
   2.鼠标点击其他地方(非弹出窗体),这个窗体关闭

注意:1.这里基类必须是QDialog.
      2.创建他时必须指定parent.
      3.这个窗体必须new出来。


//头文件
class GTZLSetWidget : public QDialog
{
    Q_OBJECT
 
  
public:
    explicit GTZLSetWidget(QWidget *parent = 0);
    ~GTZLSetWidget();
 
  
public slots:

 
  
private slots:
    void onTimer();
 
  
private:
    void setupUI();
 
  
private:
    QTimer * m_timer;
};
 
  
 
  
 
  
 
  
 
  
//实现文件
GTZLSetWidget::GTZLSetWidget(QWidget *parent)
   :QDialog(parent)
{
    setupUI();
    m_timer->start(100);
}

GTZLSetWidget::~GTZLSetWidget()
{
    m_timer->stop();
    if(m_timer)delete m_timer;
}

void GTZLSetWidget::setupUI()
{
    this->setWindowFlags(windowFlags() | Qt::FramelessWindowHint);
    //this->setWindowFlags(Qt::FramelessWindowHint | Qt::Window);
    //this->setAttribute(Qt::WA_TranslucentBackground);

}

void GTZLSetWidget::onTimer()
{
    if(!this->isActiveWindow())
    {
        this->close();
        this->deleteLater();
    }
}
 
  
 
  
 
  
 
  
 
  
//调用点函数,记住,这里有点特殊,这个窗体必须new出来否则窗体无法获取到键盘输入焦点,必须指定parent否者无法正常显示
void GZLTestAccountView::onSetting()
{
    QPoint pt = m_settingButton->pos();
    pt = this->mapToGlobal(pt);
    int h = m_settingButton->height();

    GTZLSetWidget *setting = new GTZLSetWidget(this);
    pt.setY(pt.y()+h);
    setting->move(pt);

    setting->show();
    setting->raise();
    setting->setFocus();
}

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转载自blog.csdn.net/wolfseek/article/details/41729557