chapter4-customPropertyTypes.pro Example File
tutorials/extending-qml/chapter4-customPropertyTypes/chapter4-customPropertyTypes.pro
  QT += qml quick
  HEADERS += piechart.h \
             pieslice.h
  SOURCES += piechart.cpp \
             pieslice.cpp \
             main.cpp
  RESOURCES += chapter4-customPropertyTypes.qrc
  DESTPATH = $$[QT_INSTALL_EXAMPLES]/qml/tutorials/extending-qml/chapter4-customPropertyTypes
  target.path = $$DESTPATH
  qml.files = *.qml
  qml.path = $$DESTPATH
  INSTALLS += target qml