The attached .zip file includes source code and assets for a speedometer simulation using Qt declarative. It illustrates how to script custom gauges which can be driven by native QNX C++ code. Includes a Makefile and instructions for building the example via command-line on Windows-hosted Momentics. PDF documentation and screenshot in next post.
Documentation...
NOTE regarding performance - I did all my testing for this example on i.mx53QSB (armv7). The SD card filesystem I was using had Qt 4.8.0 binaries installed. The motion is smooth and there is a minimum of a few percent idle time reported. When I reverted back to the 4.7.1 binaries, I discovered the example behaves very poorly! With 4.7.1, the CPU requirement exceeds 100% so the motion is very jumpy! Apparently, lots of improvements for the relatively "new" declarative model have gone into the baseline. I have prepared a zipfile with the 4.8.0 runtime binaries and files to support speedo (and the other Qt examples I have posted). Just apply the archive to the root of your runtime filesystem. If the example utilizes .jpg images, you will need to "export QT_PLUGIN_PATH=/usr/lib/qt4/plugins" prior to starting the Qt binary. The zipfile is: http://dl.dropbox.com/u/13676760/armv7-runtime-4.8.0.zip
