QT Transformation Widget

gistfile1.cpp

## Ref: http://www.qtcentre.org/threads/27130-Rotate-QGraphicsProxyWidget-in-QGraphicsView

#include <QtGui>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QGraphicsView gv;
    QGraphicsScene scene(-200,-200,400,400);
    gv.setScene(&scene);
    gv.setRenderHint(QPainter::Antialiasing);
    gv.setDragMode(QGraphicsView::ScrollHandDrag);

    QWidget wi;
    QVBoxLayout lo;
    QPushButton btn("My Button", &wi);
    lo.addWidget(&btn);
    wi.setLayout(&lo);
    QGraphicsProxyWidget *pw = scene.addWidget(&wi);
    pw->setPos(0, 0);
    pw->setRotation(-20);
    gv.show();
    return a.exec();
}