Can i multiply inherite from QGraphicsItem and QHBoxLayout?
can i multiply inherite from QGraphicsItem and QHBoxLayout?
i tried, and then I add this "layout" on a dialog, and then set this dialog to QGraphicsProxyWidget by setWidget().
but overriden pain(), mousePressEvent() and so on does not work...
ps. if i can't inherite from QGraphicsItem and QHBoxLayout, so how should i do if i want to add some controls on the QGraphicsItem as well as the background can be painted by myself.
i tried inherite from QWidget and QGraphicsItem, but there seems to have many ambiguis func with same name...
What's wrong with composition? Inheritance is not a solution to everything. To get a flying rat one should not have a class inherited from rat and wings rather wings should be composed in inheritance of rat.
but i don't know whether a QHBoxLayout can be added into a QGraphicsItem...
what i need is to render the QGraphicsItem as background as well as some controls(eg.label, editbox, etc) on it. what is the best way to do this?
QApplication a(argc, argv);
QGroupBox *groupBox = new QGroupBox("Contact Details"); QLabel *numberLabel = new QLabel("Telephone number"); QLineEdit *numberEdit = new QLineEdit; QFormLayout *layout = new QFormLayout; layout->addRow(numberLabel, numberEdit); groupBox->setLayout(layout); QGraphicsScene scene; QPixmap pixmap(600,200); pixmap.fill(Qt::blue); QGraphicsPixmapItem* pixmapItem = scene.addPixmap(pixmap); QGraphicsProxyWidget *proxy = new QGraphicsProxyWidget(pixmapItem); proxy->setWidget(groupBox); QGraphicsView view(&scene); view.show(); return a.exec();
I hope this gives you an idea.
thank you, and i will try.
what i want is in this link: "":http://qt-project.org/forums/viewthread/45769/
and as the code u give, i can get the item in the big rect node...but how can i add many item as ur code together in the big rect node? and these item would better to be on sth like the "layout"
i tried ur code, have a problem...pixmap.fill(Qt::blue); seems meanless..cause the whole rect have covered by the layout...
BTW, as i said above, actually i want to use the QGraphicsItem as a backgound where i can add some controls on it. meanwhile, when i click the area which is not covered by the controls but on the QGraphicsItem, i want to handle the mouse event in my custom QGraphicsItem class(or can i get this through set some controls disable?)