> On Oct. 4, 2016, 9:21 p.m., Albert Astals Cid wrote: > > ui/presentationwidget.cpp, line 544 > > <https://git.reviewboard.kde.org/r/128858/diff/3/?file=481683#file481683line544> > > > > You should return true for the events you actually handle i guess
Not sure, but so far I have read the documentation differently. On http://doc.qt.io/qt-5/qobject.html#eventFilter it says: "In your reimplementation of this function, if you want to filter the event out, i.e. stop it being handled further, return true; otherwise return false." I want to do something when the event happens, but I don't want to filter it out. Others may still be allowed to act on the event after me. Therefore I always return false. Does that make sense? - Oliver ----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: https://git.reviewboard.kde.org/r/128858/#review99790 ----------------------------------------------------------- On Oct. 4, 2016, 8:13 p.m., Oliver Sander wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://git.reviewboard.kde.org/r/128858/ > ----------------------------------------------------------- > > (Updated Oct. 4, 2016, 8:13 p.m.) > > > Review request for Okular. > > > Repository: okular > > > Description > ------- > > I am trying to fix the following papercut: I regularly write on pdf files in > presentation mode, using the pen that comes with my Lenovo ThinkPad Yoga. > When I approach the screen with the pen, the cursor appears, and it follows > the pen tip during writing. When I lift off the pen, the cursor stays on, > and auto-hides only a few seconds later (because of > Okular::Settings::EnumSlidesCursor::HiddenDelay). As a consequence, the > cursor frequently hides the last bits of what I have just written. This is a > nuisance, because I do this in front of an audience, and a lot of it is math > (where every detail matters). > > Ideally, the cursor would auto-hide when I lift the pen off the screen. > Luckily, Qt has an event for this: QEvent::TabletLeaveProximity. Unluckily, > the documentation says (http://doc.qt.io/qt-5/qtabletevent.html): > > "TabletEnterProximity and TabletLeaveProximity events [...] are only sent to > QApplication" > > Therefore, this patch introduces a new class TabletApplication, which > inherits from QApplication, and is used in main.cpp instead of QApplication. > The proximity events are really caught, and each time a short note is printed > on the console. > > Unfortunately, at this point I am stuck and need some help. Apparently, I > cannot control the cursor from a QApplication. How do I get the information > that a TabletProximity has been caught to the presentation widget? Maybe the > answer is trivial, but I have very little Qt programming experience. Thanks > for your help! > > > Diffs > ----- > > ui/presentationwidget.h 69574d2 > ui/presentationwidget.cpp c16d616 > > Diff: https://git.reviewboard.kde.org/r/128858/diff/ > > > Testing > ------- > > > Thanks, > > Oliver Sander > >
