QGraphicsScene...How to have your own format for button,etc..???

[wysota]

To be honest your code doesn't make much sense and is invalid and won't work... Those methods you have to implement are there for a reason, you can't leave them empty.

Why not do it this way?

int main(int argc, char **argv){
  QApplication app(argc, argv);
  QGraphicsView view;
  QGraphicsScene *scene = new QGraphicsScene(&view);
  view.setScene(scene);
  QWidget *wgt = new QWidget;
  QHBoxLayout *l = new QHBoxLayout(wgt);
  l->addWidget(new QPushButton("play"));
  l->addWidget(new QPushButton("stop"));
  QGraphicsProxyWidget *wgtItem = scene->addWidget(wgt);
  QGraphicsTextItem *txtItem = scene->addText("salman"); 
  wgtItem->setPos(100,100);
  txtItem->setPos(200, 300); 
  view.show();
  return app.exec();
}

int main(int argc, char **argv){
  QApplication app(argc, argv);
  QGraphicsView view;
  QGraphicsScene *scene = new QGraphicsScene(&view);
  view.setScene(scene);
  QWidget *wgt = new QWidget;
  QHBoxLayout *l = new QHBoxLayout(wgt);
  l->addWidget(new QPushButton("play"));
  l->addWidget(new QPushButton("stop"));
  QGraphicsProxyWidget *wgtItem = scene->addWidget(wgt);
  QGraphicsTextItem *txtItem = scene->addText("salman"); 
  wgtItem->setPos(100,100);
  txtItem->setPos(200, 300); 
  view.show();
  return app.exec();
}

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[salmanmanekia]

Ya,thanks,great,not only the problem is solved but things are also clear..
In your code you implemented a Widget in main function itself ,it worked fine...
i tried to make a class derived from QWidget and define the play and stop button there and called the object of that class in main

exclass *lay = new exclass;

QGraphicsProxyWidget *widgItem = scene->addWidget(lay);

widgItem->setPos(20,20);

but in this case it shows an empty gray screen with in my view which has purple background...