Sorry if I wasn’t clear, I meant simply “don’t tell me to no longer have the requirement to get the correct/updated rectangles before the window is shown”
Please do FEEL FREE to tell me how to do anything differently, as long as we keep the requirement "get the correct/updated rectangles before the window is shown” :) > On May 26, 2024, at 11:58 PM, Axel Spoerl via Interest > <interest@qt-project.org> wrote: > > Hi David, > > §1 Please don’t try to tell me to do it differently. > §2 If you don’ know how to answer it, please don’t chime in, thanks. > > These instructions are a bit limiting, are they not? > > In essence, you want a widget's geometry to be precise and up to date, before > it has been shown. > That is done (under more), if QWidgetPrivate::updateGeometry_helper(true) is > called. > There are three ways to achieve that on a hidden widget: > setVisible(true), show() => probably not an option > setMaximumSize() > setMinimumSize() => under certain circumstances. > > Except for the first code path shown, all others cause the helper to be > called with a "false" argument, hence the result is not to your liking. > I haven't debugged with negative co-ordinates. Maybe it works. However, I > would be reluctant to depend on something like that. > There are hacky ways, like re-implementing geometry calculation in the > application, linking to WidgetsPrivate. I guess you have discarded those for > good reasons. > > With §1 in sight: Grinding stop. > > Cheers > Axel > Von: Interest <interest-boun...@qt-project.org> im Auftrag von coroberti > <corobe...@gmail.com> > Gesendet: Montag, 27. Mai 2024 08:05 > An: David M. Cotter <d...@kjams.com> > Cc: Qt Project <Interest@qt-project.org> > Betreff: Re: [Interest] Update widget geometry BEFORE window shown > > Have you tried the suggestion from Henry to move the window first to the > negative coordinates? > > Kind regards, > Robert Iakobashvili > ............................ > > > On Mon, May 27, 2024 at 9:01 AM David M. Cotter <d...@kjams.com > <mailto:d...@kjams.com>> wrote: > Does ANY ONE have any ideas on this?? Pretty please?? > > -dave > >> On May 24, 2024, at 12:14 PM, David M. Cotter <d...@kjams.com >> <mailto:d...@kjams.com>> wrote: >> >> I’ve tried everything I can think of. The ONLY one that works the way I NEED >> is the first one, but that one flashes the window on the screen >> >> #if 1 >> qWidgetP->show(); >> qWidgetP->hide(); >> QtLetTimersFire(0); >> #endif >> >> #if 0 >> QLayout* >> layoutP(qWidgetP->layout()); >> >> layoutP->update(); >> layoutP->activate(); >> QtLetTimersFire(0); >> #endif >> >> #if 0 >> for (auto* childP: qWidgetP->findChildren<QWidget*>()) { >> childP->updateGeometry(); >> } >> >> qWidgetP->updateGeometry(); >> QtLetTimersFire(0); >> #endif >> >> #if 0 >> qWidgetP->setAttribute(Qt::WA_DontShowOnScreen, true); >> qWidgetP->show(); >> // qWidgetP->layout()->invalidate(); >> // qWidgetP->layout()->update(); >> // qWidgetP->layout()->activate(); >> qWidgetP->hide(); >> qWidgetP->setAttribute(Qt::WA_DontShowOnScreen, false); >> QtLetTimersFire(0); >> #endif >> >> #if 0 >> qWidgetP->setAttribute(Qt::WA_DontShowOnScreen, true); >> qWidgetP->show(); >> >> qWidgetP->layout()->invalidate(); >> qWidgetP->layout()->update(); >> qWidgetP->layout()->activate(); >> >> for (auto* childP: qWidgetP->findChildren<QWidget*>()) { >> childP->updateGeometry(); >> } >> >> qWidgetP->updateGeometry(); >> >> qWidgetP->hide(); >> qWidgetP->setAttribute(Qt::WA_DontShowOnScreen, false); >> QtLetTimersFire(0); >> #endif >> >> >>> On May 24, 2024, at 12:47 AM, coroberti <corobe...@gmail.com >>> <mailto:corobe...@gmail.com>> wrote: >>> >>> David, >>> Try >>> yourWidget->layout()->update(); >>> yourWidget->layout()->activate(); >>> >>> If not, >>> let the event loop to run, ie. arranging a short timer. >>> >>> Kind regards, >>> Robert Iakobashvili >>> ............................ >>> >>> On Fri, May 24, 2024 at 1:53 AM David M. Cotter <d...@kjams.com >>> <mailto:d...@kjams.com>> wrote: >>>> >>>> I need to do something like this: >>>> >>>> windowP->layout()->updateGeometry(); // causes all widget geometry to >>>> update >>>> DoSomethingImportant(windowP->GetWidget(“someWidget”).geometry()); // do >>>> something with the geometry of a widget (which must be up to date) >>>> windowP->setGeometry(windowP->GetInitialGeometry()); // pos/size now based >>>> on the fact that we KNOW the geometry of one of the widgets BEFORE the >>>> window is shown >>>> windowP->show(); // only NOW show the window, NOT before now >>>> >>>> How do I do something like the first line? Cause all widget geometry >>>> (Recursively), to know / figure out its size AND position? And this BEFORE >>>> the window or any widget is “shown” via the windowP->show() command? >>>> >>>> Please don’t try to tell me to do it differently. If you don’ know how to >>>> answer it, please don’t chime in, thanks. >>>> >>>> -Dave >>>> _______________________________________________ >>>> Interest mailing list >>>> Interest@qt-project.org <mailto:Interest@qt-project.org> >>>> https://lists.qt-project.org/listinfo/interest >> >> _______________________________________________ >> Interest mailing list >> Interest@qt-project.org <mailto:Interest@qt-project.org> >> https://lists.qt-project.org/listinfo/interest > > _______________________________________________ > Interest mailing list > Interest@qt-project.org <mailto:Interest@qt-project.org> > https://lists.qt-project.org/listinfo/interest
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