File list (Check if you may need any files):
qthualingde
...........\qthualingde
...........\...........\qthualingde.pro
...........\...........\qthualingde.pro.user
...........\...........\speedWidget.cpp
...........\...........\mygauge2.cpp
...........\...........\mainwindow.cpp
...........\...........\qcustomplot.h
...........\...........\qcustomplot.cpp
...........\...........\speed.ui
...........\...........\speedWidget.h
...........\...........\main.cpp
...........\...........\mygauge2.h
...........\...........\mainwindow.h
...........\build-qthualingde-unknown-Debug
...........\...............................\qthualingde
...........\...............................\moc_mainwindow.o
...........\...............................\moc_qcustomplot.cpp
...........\...............................\mygauge2.o
...........\...............................\moc_speedWidget.o
...........\...............................\qcustomplot.o
...........\...............................\Makefile
...........\...............................\mainwindow.o
...........\...............................\speedWidget.o
...........\...............................\moc_speedWidget.cpp
...........\...............................\moc_mygauge2.cpp
...........\...............................\moc_mygauge2.o
...........\...............................\main.o
...........\...............................\moc_mainwindow.cpp
...........\...............................\ui_speed.h
...........\...............................\moc_qcustomplot.o