QOpenGLWidget introduced in Qt 5.4.
The old QGLWidget is obsolete in Qt 5.
After this patch the performance of image browsing in Monteverdi on my machine is increased dramatically. I can browse an image smoothly while it was very slow before.
Please see the Qt Documentation for QOpenGLWidget for details on the differences between the two.
The copyright owner is CNES and has signed the ORFEO ToolBox Contributor License Agreement.
Check before merging:
git diff develop... -U0 --no-color | clang-format-diff.py -p1 -i on latest changes and commit