painteditem.pro Example File
customitems/painteditem/painteditem.pro
  TEMPLATE = lib
  CONFIG += plugin
  QT += qml quick
  TARGET = qmltextballoonplugin
  HEADERS += TextBalloonPlugin/plugin.h \
      textballoon.h
  SOURCES += textballoon.cpp
  RESOURCES += painteditem.qrc
  DESTDIR = TextBalloonPlugin
  target.path = $$[QT_INSTALL_EXAMPLES]/quick/customitems/painteditem/TextBalloonPlugin
  qmldir.files = TextBalloonPlugin/qmldir
  qmldir.path = $$[QT_INSTALL_EXAMPLES]/quick/customitems/painteditem/TextBalloonPlugin
  INSTALLS += qmldir target
  CONFIG += install_ok  # Do not cargo-cult this!
  OTHER_FILES += \
      textballoons.qml