QT prepared custom controls, a good example, can be used to study

QNeedleIndicator-0.3.2\archive.sh
QNeedleIndicator-0.3.2\AUTHORS
QNeedleIndicator-0.3.2\Changelog
QNeedleIndicator-0.3.2\Doxygen
QNeedleIndicator-0.3.2\HotChicksInside.txt
QNeedleIndicator-0.3.2\LICENCE
QNeedleIndicator-0.3.2\main.cpp
QNeedleIndicator-0.3.2\mainwindow.cpp
QNeedleIndicator-0.3.2\mainwindow.h
QNeedleIndicator-0.3.2\mainwindow.ui
QNeedleIndicator-0.3.2\qneedleindicator.cpp
QNeedleIndicator-0.3.2\qneedleindicator.h
QNeedleIndicator-0.3.2\QNeedleIndicator.pro
QNeedleIndicator-0.3.2\QNeedleIndicator.pro.user
QNeedleIndicator-0.3.2\QNeedleIndicatorPlugin\qneedleindicatorplugin.cpp
QNeedleIndicator-0.3.2\QNeedleIndicatorPlugin\qneedleindicatorplugin.h
QNeedleIndicator-0.3.2\QNeedleIndicatorPlugin\QNeedleIndicatorPlugin.pro
QNeedleIndicator-0.3.2\QNeedleIndicatorPlugin\QNeedleIndicatorPlugin.pro.user
QNeedleIndicator-0.3.2\QNeedleIndicatorPlugin\QNeedleIndicatorPlugin.pro.user.-1
QNeedleIndicator-0.3.2\QNeedleIndicatorPlugin\QNeedleIndicatorPlugin_global.h
QNeedleIndicator-0.3.2\README.txt
QNeedleIndicator-0.3.2\screenshot\QNeedleIndicator.png
QNeedleIndicator-0.3.2\VERSION
QNeedleIndicator-0.3.2\QNeedleIndicatorPlugin
QNeedleIndicator-0.3.2\screenshot
QNeedleIndicator-0.3.2

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