The inefficiency of QColor(const char*) came to light by
a recent refactoring which showed that the existing char*
overload of qt_get_hex_rgb() was never called.
So, provide a QLatin1String interface for named colors
that allows user code to reach that internal function
without converting to QString first.
Change-Id: I74df7b570ef28c00e35ca4adf46c4b7c7e9994b3
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Anton Kudryavtsev <a.kudryavtsev@netris.ru>
0889e9da20