How do I unsubscribe???  I followed the instructions at:
http://gnome-apps.13852.n7.nabble.com/mailing_list/MailingListOptions.jtp?forum=22338.
But I continue to receive messages from the Pan mailing list.



On Fri, Jul 3, 2015 at 2:22 AM, Duncan <1i5t5.dun...@cox.net> wrote:

> walt posted on Thu, 02 Jul 2015 08:34:34 -0700 as excerpted:
>
> > About once a year I get bored enough to try to fix this ancient bug in
> > pan's behavior and every time I conclude that gtk is a horrible mess,
> > designed by the devil to torture innocent soft- ware developers.
> >
> > Anyway, here's the behavior that I consider to be wrong:
> >
> > When pan displays an image (typically a jpeg) in the body pane,
> > if the image is is too large to fit properly then the body pane somehow
> > manages to enlarge the entire pan window enough so that it's too big to
> > fit on my monitor screen.
> >
> > I think, in general, that a child window should never resize a top-level
> > parent window under any circumstances, so this should be fixed.  I keep
> > looking at the code but I don't understand it enough to fix it myself.
> >
> > Anyone else have any clues?
> >
> > Thanks.
> >
> > BTW, note that the body pane already has a scroll-bar to allow the user
> > to view the entire image, so resizing the top-level window is completely
> > unnecessary in any case.
>
> What OS/window-manager are you using, and do you have pan's main window
> setup with any custom rules?  And do you have pan set to size images to
> fit by default, or not?
>
> I ask because I've /never/ seen pan behave like that, here, running kde4/
> kwin4.  I do have some custom window rules setup for pan's main window,
> but I'm not forcing height, tho I am forcing width.
>
> (The following takes my usual long, "scenic route" approach, to the reply
> at hand.  Just sit back and enjoy the scenery.  We'll get there
> eventually!  =:^)
>
> While most of the time I don't do binary groups, mainly only some
> primarily textual technical mailing lists like this one via gmane's
> list2news service, I did sign up for a huge 1 TB (10-power) block from
> astraweb for $50 a couple years ago, so I have binary access, and I do
> use it occasionally, tho at my usage it could last me well over a decade,
> perhaps even several... my lifetime (which is why I went big, despite low
> general use, for $50 it doesn't expire, and I may well never have to
> worry about buying more access ever again, even if I live several more
> decades!).
>
> Between the occasional binary/images groups usage and the occasional
> screen shot on the technical groups, I get enough images that if the pan
> main-window-resizing was a problem, I'm sure I'd have seen it, but I
> haven't...
>
> FWIW, here's my relevant settings:
>
> Pan: view > body pane > size pictures to fit : checked
>
> (But IIRC, last I used the toggle with a large image, it gave me scroll
> bars as expected.)
>
> KWin window rules:
>
> Match tab:
>
> Window class: substring match: "pan pan"
> Window role: exact match: "pan-main-window"
> Window type: normal window
> Window title: substring match: "Pan"
>
> Size & Position tab (see explanation):
>
> Position: apply initially: 0,2180
> Size: apply initially: 1920,1060
> Maximized horizontally: force: yes
> Initial placement: force: no placement
>
> (Nothing set on the other tabs.)
>
> Explanation:
>
> My desktop consists of three full-hd monitors, 1080x1920 resolution,
> logically stacked for 1920x3240 total resolution.  The two lower
> monitors, my normal working space, are actually big-screen TVs, a 48-inch
> (122 cm) on the bottom, with a 42-inch (106 cm) above it, logically in
> the center.  That's actually the wall at the foot of my bed. =:^)
> Logically above them but physically off on the right side wall, is my
> third monitor, actually left over from before my big-screen upgrade;
> while the same resolution, it's only a 21-inch.
>
> The small top (actually right) monitor is my system status dashboard, a
> superkarumba theme with real-time per-second-sampled line graphing per-
> core multi-category cpu usage (user/system/nice/io-wait/total), multi-
> category RAM usage (app/buffer/cache/total), voltage/fan/power/temp
> readouts, network usage, and displaying top apps by cpu and memory usage
> and the last 20-ish general syslog entries.
>
> That superkaramba theme display window is full-width, almost full height
> of that monitor, "almost", because if I have the other two monitors full,
> sometimes the narrow bit at the bottom of that monitor is the only bit of
> the actual desktop I can access, I have plasma set so vert-scrolling the
> desktop changes vertical desktops, and that's the usual way I do so (tho
> I also have hotkeys for it), so I need access to at least a /small/ bit
> of the desktop in ordered to switch desktops.
>
> The two big-screen monitors, then, are my normal workspace.  Actually,
> the bottom one is, with the middle one (the 42-inch) being aux/overflow.
> Often, I'll have youtube playing full-screen on the 42-inch middle
> monitor, while I actually work in the bottom (48-inch) one.
>
> FWIW, here's a screenshot (which I've posted here before, IIRC), now a
> couple years dated but it'll give you an idea.  Just imagine the top
> third off to the side, on a normal size computer monitor, while the
> bottom two thirds are my main workspace on the wall in front of me.  In
> it, pan (open to a kde list/group on gmane) is on the middle monitor,
> with my claws-mail feeds instance open on the bottom monitor, with
> firefox/aurora open behind it, half-width.
>
> http://wstaw.org/m/2013/05/11/duncan-fullscreen.png
>
>
> OK, now that you have a general picture of my desktop in mind, I can
> better explain the kwin size and position settings I use for pan...
>
> In general, I want pan open at full width (horizontal maximized), but
> not /quite/ the full height of the monitor, with it starting on the
> bottom monitor.  In the screenshot, the claws feed instance, with firefox
> open behind it, illustrates the reason behind the _almost_ but _not_
> _quite_ full height.  I use a mouse policy of (sloppy) focus follows
> mouse, click-to-raise.  With pan (or claws in either feeds or mail mode)
> in three-pane-mode, I need full-width to get all three panes on-screen
> without crimping on header or body display area.  The /almost/ full-
> height, bottomed on the monitor, leaves just enough room for a title-bar
> to stick out above.  That arrangement, with vertically maximized (to
> monitor) half-width browser, compose-window, and terminal (konsole)
> windows, combined with window transparency set just so, lets me work with
> upto three windows visible on the monitor at once.  In particular, I can
> have the almost-maximized window in front, with another half-width window
> or two behind, set so I can make any of the three active and type into
> them, while still viewing the others.  At a click I can bring any of the
> three to the top, and as long as I don't bring both half-width windows to
> the top at the same time thus hiding the full-width window, I can
> continue to work with all three at once.
>
> Of course, this is usually on the bottom monitor, leaving the middle one
> for either more reference windows (normally full-height, half-width, so
> two, side-by-side), or for that full-screen youtube or the like.
>
> So, a pan size, applied initially, of 1920x1060, with horizontally-
> maximized forced on, and position, applied initially, of 0x2180, sizes
> and positions pan exactly as you see claws positioned in the screenshot,
> at the bottom of the bottom/primary-working monitor, with just enough
> room above pan for the titlebars of two full-height, half-width windows
> to stick out.
>
> The applied-initially on the (vertical) size and position let me move pan
> to the aux monitor if desired, or, occasionally if I'm browsing the
> images groups, expand pan vertically to cover both working monitors,
> which if I toggle the groups pane off, gives me full 1920 width for image
> display, with a tall enough (2160 px) window I can still have a few
> headers showing in the headers list, while leaving the rest for image
> display.  I can then either have the body pane taking the full bottom
> monitor with the middle one for headers, giving me full-HD resolution
> image viewing in landscape mode, or, if some images are portrait mode,
> increase the body pane size a bit further at the expense of shrinking the
> number of headers displayed, to give portrait mode images a bit more room
> to display.
>
> Meanwhile, the forced horizontal-max means my header column widths don't
> get screwed up as pan is always full-display-width.  =:^)  And the forced
> no-placement avoids the smart-window-placement that could otherwise
> override the apply-initially positioning.
>
> (We'll forget about, for now, the other pan/gtk bug where it sometimes
> initializes column widths to zero, my guess being that it has to do with
> a gtk-icon resource loading race.  That always screws up column widths.
> Unfortunately, I'm not enough of a coder to fix it properly, but
> fortunately, I've scripted a workaround for it that patches the zeroed-
> out column config, such that when it happens, I only have to shutdown and
> restart pan, and it automatically fixes the problem for me.)
>
>
> So... Obviously I occasionally deal with images larger than my standard-
> size body pane, or I could simply set the size to forced instead of
> apply-initially.  Equally obviously, I'm not seeing pan resize itself
> displaying those images, because if it were to do so, I'd have been
> annoyed enough to set kwin to force size anyway, thereby stopping the
> problem.  The fact that I've not done so confirms my memory of never
> having that happen, thereby provoking the annoyance that would have lead
> to setting kwin to force the size.
>
>
> So... it's not happening here.  Possible explanations/solutions:
>
> 1) It's some weird interaction between your window manager and pan.
>
> S: Try a different window manager, or configure your window manager to
> avoid that interaction or force the size.
>
> 2) If pan is maximized, at least horizontally, the bug doesn't trigger.
>
> S: Set pan maximized, at least horizontally.  Consider configuring your
> window manager to force it, if necessary.  If your window manager lacks
> such configurability, consider switching window managers to something
> that has it.
>
> 3) If pan's size, likely width, is over some minimum, the bug doesn't
> trigger.  Various people have reported issues with pan when run on
> extremely low resolution, typically under 1280 or 1024 px width,
> screens.  One problem, I believe now fixed, was that pan wouldn't resize
> smaller than its toolbar width.  Given the number of icons in the toolbar,
> it was wider than 1024 px, and people on netbooks with displays narrower
> than that really had problems.  Perhaps it can be resized smaller than
> that now, but certain conditions, including large images, triggers a
> resize larger, once again.
>
> S: Configure the window manager to force width.  See #2's solution if
> your window manager can't be so configured.
>
> 4) It doesn't trigger if pan is set to size images to fit.
>
> S: This one's easy to check, and to use as a workaround if it helps.
> Simply toggle that setting, as mentioned above, in the view menu, body
> pane submenu. =:^)
>
> 5) It's a gtk3 problem.  While pan has nominally been ported to build and
> use gtk3 instead of gtk2 for many years now, a gtk2-based build is still
> very much recommended as there continue to be various strange and
> unresolved bugs reported by folks running pan built against gtk3.  Of
> course the bugs remain unresolved because the users with enough knowledge
> to fix them simply build pan against gtk2 as recommended when the find
> such a bug, instead of bothering to trace it down and develop and submit
> a patch for it, but there you have it.
>
> If you're running a gtk3-based pan-build, this is very likely one of
> those "strange and unresolved" gtk3-related bugs!  I'd definitely call
> this the prime suspect if your pan is gtk3 based.
>
> S: Build pan against gtk2, not gtk3.  Or either find and fix the gtk3
> related bug, submitting a patch as appropriate, or file it with your
> distro building it against gtk3 so hopefully they will either find and
> fix the bug and submit a patch, or switch back to building against gtk2.
>
> (FWIW, firefox being in the position it's in, even if chrome/chromium is
> gaining share, with it still gtk2-based by default, few distros will
> remove gtk2 entirely, tho they might well deprecate it, building what
> they can against gtk3 and making gtk2 a dependency only installed if
> firefox or other remaining gtk2-based packages are installed to pull it
> in.)
>
> 6) Something else I didn't think of?
>
> --
> Duncan - List replies preferred.   No HTML msgs.
> "Every nonfree program has a lord, a master --
> and if you use the program, he is your master."  Richard Stallman
>
>
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