padnavigator.pro Example File
graphicsview/padnavigator/padnavigator.pro
  SOURCES += main.cpp \
      roundrectitem.cpp \
      flippablepad.cpp \
      padnavigator.cpp \
      splashitem.cpp
  HEADERS += \
      roundrectitem.h \
      flippablepad.h \
      padnavigator.h \
      splashitem.h
  RESOURCES += \
      padnavigator.qrc
  FORMS += \
      form.ui
  QT += widgets
  qtHaveModule(opengl): QT += opengl
  # install
  target.path = $$[QT_INSTALL_EXAMPLES]/widgets/graphicsview/padnavigator
  INSTALLS += target
  CONFIG += console