On 2020-02-21 15:02, NIkolai Marchenko wrote:
it's definitely neat, but it's nothing that you can't do with pure c++
though. It's just qt's native implementation of score guard pattern.
Tbh I didn't even know it existed because I use my own scope guarder
class.
On Fri, Feb 21, 2020 at 4:33 PM Henry Skoglund <he...@tungware.se
<mailto:he...@tungware.se>> wrote:
Hi, just want to thank whoever worked to implement qScopeGuard (in
5.12), it was a perfect gift from heaven today :-)
I'm writing a LOB app with heavy database munging, and want to
show the
user an hourglass cursor while munging/waiting for MS SQLServer.
However my functions have lots of exits due to bad weather etc. and I
dreaded pasting a restore-mouse-cursor call everywhere. Googled a bit
and now I use this 2-line magic at the top of my functions:
...
qApp->setOverrideCursor(Qt::WaitCursor);
auto restoreCursor = qScopeGuard([] {
qApp->restoreOverrideCursor(); });
...
Before I discovered Qt I spent 20 years in MFC purgatory, but now
I've
seen the light!
Agreed, you could roll your own class say in an hour, but it's there,
*documented* and someone has tested and debugged it for me already.
That's what "standing on the shoulder of giants" is all about...
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