#0  0xb7a73fc5 in QBoxLayout::insertWidget () from /usr/lib/qt4/libQtGui.so.4
#1  0xb7a74213 in QBoxLayout::addWidget () from /usr/lib/qt4/libQtGui.so.4
#2  0x0804a5c6 in addwidget::test ()
#3  0x0804a7e9 in addwidget::qt_metacall ()
#4  0xb76ffdf0 in QMetaObject::activate () from /usr/lib/qt4/libQtCore.so.4
#5  0xb76fffe3 in QMetaObject::activate () from /usr/lib/qt4/libQtCore.so.4
#6  0xb7e198f3 in QAbstractButton::clicked () from /usr/lib/qt4/libQtGui.so.4
#7  0xb7c9e24a in QAbstractButtonPrivate::click () from /usr/lib/qt4/libQtGui.so.4
#8  0xb7c9e490 in QAbstractButton::mouseReleaseEvent () from /usr/lib/qt4/libQtGui.so.4
#9  0xb7aaed42 in QWidget::event () from /usr/lib/qt4/libQtGui.so.4
#10 0xb7c9d76a in QAbstractButton::event () from /usr/lib/qt4/libQtGui.so.4
#11 0xb7d0b944 in QPushButton::event () from /usr/lib/qt4/libQtGui.so.4
#12 0xb7a67f6f in QApplicationPrivate::notify_helper () from /usr/lib/qt4/libQtGui.so.4
#13 0xb7a68a15 in QApplication::notify () from /usr/lib/qt4/libQtGui.so.4
#14 0xb7ac536f in QETWidget::translateMouseEvent () from /usr/lib/qt4/libQtGui.so.4
#15 0xb7ac41eb in QApplication::x11ProcessEvent () from /usr/lib/qt4/libQtGui.so.4
#16 0xb7ad41e0 in QEventDispatcherX11::processEvents () from /usr/lib/qt4/libQtGui.so.4
#17 0xb76ed849 in QEventLoop::processEvents () from /usr/lib/qt4/libQtCore.so.4
#18 0xb76eda72 in QEventLoop::exec () from /usr/lib/qt4/libQtCore.so.4
#19 0xb76f2b36 in QCoreApplication::exec () from /usr/lib/qt4/libQtCore.so.4
#20 0xb7a676e7 in QApplication::exec () from /usr/lib/qt4/libQtGui.so.4
#21 0x08049fd0 in main ()