Hi Everybody

I have a graphics scene and I need to have some controls on top of it( like buttons ).
This buttons should be static/unmoved while scene scaled, moved, rotated and so on.
So it seems I can not use any kind of graphicitems.

So I decided to create subclass of QWidget

Qt Code: 
  1. #include <QPixmap>
  2. #include <QGLWidget>
  3.  
  4. class CLStaticImageWidget : public QGLWidget 
  5. {
  6. 	Q_OBJECT
  7. public:
  8. 	CLStaticImageWidget(QWidget *parent, QString img, QString name, int max_width);
  9. signals:
  10. 	void onPressed(QString name);
  11. protected:
  12. 	void paintEvent(QPaintEvent *event);
  13. protected:
  14. 	QPixmap m_img;
  15. 	QString m_name;
  16.  
  17. 	int m_width;
  18. 	int m_height;
  19.  
  20. };
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and cpp file

Qt Code: 
  1. CLStaticImageWidget::CLStaticImageWidget(QWidget *parent, QString img, QString name, int max_width):
  2. QGLWidget(parent,0)//, Qt::Window)
  3. {
  4. 	hide();
  5. 	m_img = cached(img);
  6.  
  7. 	int w = m_img.width();
  8. 	int h = m_img.height();
  9.  
  10. 	qreal apect = (qreal)w/h;
  11.  
  12. 	m_width = max_width;
  13. 	m_height = max_width/apect;
  14.  
  15. 	QSize size(m_width, m_height);
  16.  
  17. 	setMaximumSize(size);
  18. 	setMinimumSize(size);
  19.  
  20. 	setWindowOpacity(0.5); // here is an issue 
  21.  
  22.  
  23.  
  24. }
  25.  
  26. void CLStaticImageWidget::paintEvent(QPaintEvent *event)
  27. {
  28. 	QPainter painter(this);
  29. 	painter.drawPixmap(QRect(0,0,m_width,m_height), m_img, m_img.rect());
  30. 	painter.end();
  31. }
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and I add it to the scene inside my graphicsview like this

Qt Code: 
  1. CLStaticImageWidget * wgt = new CLStaticImageWidget(this, "./skin/home.bmp", "home", 100);
  2. 			wgt->move(1,1);
  3. 			wgt->show();
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So, it works fine except two issues

1) setWindowOpacity does not work. But if widget has flag Qt::Window it works.
Is there any way I can make widget transperent and do not have this Qt::Window flag.

2) If i replace QWidget with QGLWidget and add widget it first dwaws some garbage for a moment(may be something look like part of my desctop or so) and after that works fine.


Any ideas?
Thank you!