> On Sept. 28, 2014, 5:13 p.m., Thomas Lübking wrote:
> > kdeui/widgets/kmenu.cpp, line 182
> > <https://git.reviewboard.kde.org/r/120403/diff/1/?file=315609#file315609line182>
> >
> >     try to avoid negated bools unless for performance or readability 
> > reasons (ie. you'd need "!flag" a lot otherwise)

isNOSXMenuBar? ;)


> On Sept. 28, 2014, 5:13 p.m., Thomas Lübking wrote:
> > kdeui/widgets/kmenu.cpp, line 189
> > <https://git.reviewboard.kde.org/r/120403/diff/1/?file=315609#file315609line189>
> >
> >     As mentioned before, the parentship is pretty meaningless here. A popup 
> > *might* be parented by a window that has it in its menubar, but doesn't 
> > have to at all.

Not necessarily at "this moment", but I've only seen menubars attached to 
windows until now ...


> On Sept. 28, 2014, 5:13 p.m., Thomas Lübking wrote:
> > kdeui/widgets/kmenu.cpp, line 186
> > <https://git.reviewboard.kde.org/r/120403/diff/1/?file=315609#file315609line186>
> >
> >     parsing associatedWidgets (eg. a QMenu or a QMenuBar or a QToolButton) 
> > is a good idea, but what you want to do is to search yourself through pot. 
> > QMenu's until one ::menuAction() is associated to a QMenuBar (ie. "this 
> > menu can be reached by navigating through a menubar and its menus)

I think you've lost me a bit here. Not to appear dumb or lazy, but how does one 
do that? Are we looking at a recursive function that gets called for each QMenu 
encountered (starting with 'this', calling itself afterwards) and cycles 
through all that QMenu's ::menuAction()->associatedWidgets, until we hit a 
widget for which `qobject_cast<QMenuBar*>(w) != NULL`?
(Or is there a better way to check the type of a QWidget?)


(AAArrgggh, all this would be much simpler if KDevelop would stop exitting for 
no apparent reason and without any error message like it just did, again)


> On Sept. 28, 2014, 5:13 p.m., Thomas Lübking wrote:
> > kdeui/widgets/kmenu.cpp, line 191
> > <https://git.reviewboard.kde.org/r/120403/diff/1/?file=315609#file315609line191>
> >
> >     If I understand the Qt doc correctly, there're basically two kinds of 
> > menubars:
> >     1) per window
> >     2) shared
> >     
> >     however, they all will end up as global menu?
> >     
> >     Even if not:
> >     how many menubars are not mapped to the global one (the I could think 
> > of Qt Designer forms) and are those false positives actually worth the 
> > false negatives (ie. you miss special casing a menu)?

For the moment we're talking KDE, not (pure) Qt apps. The only KDE app I know 
that uses per-window menus even on OS X is konsole. And it doesn't use 
KMenu::addTitle.

What's your point? That in the end I might be better off just emulating the 
title rendering for all popup menus, even if they actually could render the 
"official" style?


- René J.V.


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On Sept. 28, 2014, 2:46 p.m., René J.V. Bertin wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/120403/
> -----------------------------------------------------------
> 
> (Updated Sept. 28, 2014, 2:46 p.m.)
> 
> 
> Review request for KDE Software on Mac OS X, kdelibs and Qt KDE.
> 
> 
> Repository: kdelibs
> 
> 
> Description
> -------
> 
> This is a spin-off of RR https://git.reviewboard.kde.org/r/120355/
> 
> As described in that RR, OS X cannot render menu items that were created 
> using `KMenu::addTitle`. Without a Qt patch, that function will even provoke 
> a crash. With a patch, the items are rendered barely legibly once, and then 
> render as empty space in subsequent menu openings.
> The main object of that RR is to present and discuss a workaround at the 
> client level, emulating `KMenu::addTitle`. In this RR, I present a draft 
> adaptation of that function itself.
> 
> The main goal as I see it is to modify the function just enough so that it 
> changes its behaviour for items that will or can be rendered in the Mac's 
> global menubar, using non-Qt code. Pop-up menus that are not attached to that 
> structure are rendered through Qt and can show all the style formatting they 
> can under Linux as long as it's not tied to X11 directly.
> It's probably impossible to cater to all possible use cases, so I'd propose 
> to focus on the situations we can detect from inside `KMenu::addTitle`. That 
> is, *if* we want to ease the client's burden of obtaining a sensible menu 
> item *and* we want to maintain support for the intended/expected style in the 
> menus that can actually support them. (KDevelop's context menu its Project 
> view is a prime example.)
> The other goal (secondary for KDE/Mac for the time being) is to come up with 
> a patch proposal for Qt5's `QMenu::addSection`, because its current use of 
> texted separators makes it equivalent to `QMenu::addSeparator` on OS X. (= 
> you get a separator instead of an item showing the title text.)
> 
> I have not found a way to detect reliably that a menu is attached to the 
> global menubar. There are functions that are supposed to allow this 
> (KMenu::isTopLevelMenu, QMenu::macMenu) but they don't work as expected. So 
> what I propose here is to emulate the styled menu title when adding to a 
> KMenu that is somehow associated to a KMenu belonging to a KMainWindow that 
> has a menubar. This can probably lead to false hits, and I have already 
> learned that it doesn't catch all the intended cases either (e.g. 
> MessageList->Sorting menu under KMail's View menu is apparently not yet 
> attached when addTitle is called). So I'm following Thomas's suggestion to 
> publish the draft for feedback.
> 
> In case anyone wonders about the emulation code (when notMacMenuBar==false): 
> I'm open for suggestions but this is the only approach I've found to create 
> an entry that stands out. It's not impossible to to obtain the font OS X uses 
> for menubar menu items (Lucida Grande 14; requires 2 extra functions), but 
> changing font attributes (bold, underline, overline etc) has no effect. (The 
> bold font version file is available, so it might be possible to get the bold 
> font rendered by specifying it as a full font spec and not as an attribute 
> but I wouldn't know how to achieve this.)
> 
> 
> Diffs
> -----
> 
>   kdeui/widgets/kmenu.cpp 7dab149 
> 
> Diff: https://git.reviewboard.kde.org/r/120403/diff/
> 
> 
> Testing
> -------
> 
> On OS X 10.6.8 with kdelibs git/kde4.14 . Currently the draft does nothing on 
> other OSes, and the actual "emulation" code (when notMacMenuBar==false) can 
> go conditional if there are no other platforms where a similar approach could 
> be desired.
> 
> 
> Thanks,
> 
> René J.V. Bertin
> 
>

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