QGraphicsView move child associate the border like frame

i use QGraphicsScene and QGraphicsView to scale the child widget. i want to just move the child widget and the main frame will also move it.
this is because the default border like frame is some odd and i want to delete it.
now i can only move the child widget. the scence is fixed.
how to move the scence or view without the border like frame?
my code is :

Code:

---

QASelectFrame::QASelectFrame(QWidget *parent) :QFrame(parent),ui(new Ui::QASelectFrame)
{
    ui->setupUi(this);
 
    m_scene = new QGraphicsScene;
    m_scene->addWidget(this);
    m_view = new QGraphicsView(m_scene);
    //m_view->setFrameShape(QFrame::NoFrame);
    //m_view->setStyleSheet("border: 0px");
 
    //m_view->setWindowFlags(Qt::Window | Qt::FramelessWindowHint);
    m_view->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
    m_view->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
    //m_view->setContentsMargins(QMargins());
 
    // title area
    setTitleText(tr("Selector"));
}

---

now something is like this:

Attachment 12986

can any one help me , please