Felix Miata posted on Sun, 03 Aug 2014 03:20:51 -0400 as excerpted:
> In 4.13.80, is there a way to make it stop shifting back to fit from
> 100% when doing next/previous? The Fit button with mouse is a seriously
> long way away from the prv/nxt buttons. :-(
4.13.80? That's 4.14-beta1, isn't it, making it a rather outdated pre-
release since 4.13.97 aka 4.14-rc1 is out now. FWIW I'm running (gentoo/
kde overlay) live-build packages, 4.x-HEAD, now (well, as of a rebuild
about a day ago) listed as kde 4.14.60, gwenview 4.14.0-pre, but it's
probably a later 4.14.0 pre than you're running if you're still on kde
4.13.80.
Never-the-less, I had some sizing issues with gwenview at one point some
versions ago but they seem to be worked out now, tho I think that's as
much due to a change in my behavior as a change in gwenview's.
To some extent gwenview sizing behavior depends on whether the image size
is smaller or larger than the window size.
* Where image size is SMALLER than the window size:
in the config dialog, imageview section, there's a checkbox "Enlarge
smaller images". With that set, small images are zoomed IN to window
size when first displayed. With it unset, they're 100% view, thus
smaller than window size for this case.
* Where image size is LARGER than window size:
Unfortunately, there's not a similar checkbox for this case. It seems
gwenview now defaults to zooming OUT to window size, tho there's the 100%
button.
Since I'm running a triple-stacked full-HD monitor config with my full-
size desktop thus 1920x3240 (height of 1080*3), tho with the top monitor
dedicated to system status display (superkaramba), leaving a working area
of 1920x2160 (height of 1080*2), and most of the images I deal with here
aren't /too/ huge, smaller than 1920x2160, the solution I came up with
was a kwin window rule that sets the gwenview window size to almost, but
not quite the full 1920x2160, leaving enough room around the edge to
focus-shift between gwenview and other apps (focus-follows-mouse, click-
to-raise policy), while leaving the gwenview window big enough to show
most of my images at 100%, with room for the thumbnail bar at the bottom
and the toolbar on the side (sidebar hidden).
That kwin-window-rule solution works well for me, but I'd certainly be
frustrated without a multi-monitor setup big enough to allow it, just as
I was frustrated with gwenview previously, when it started zooming all my
small images in to >100%, until it got that config checkbox that allowed
setting the small-image default-zoom to 100%.
Meanwhile, as you mentioned there's the fit/100% buttons and zoombar, but
it's not exactly convenient to repeatedly hit them for /every/ image.
There are, however, a couple workarounds.
1) Mouse middle-button. In gwenview, clicking the middle mouse button
toggles between 100% and zoom-to-fit mode. While clicking the middle
button repeatedly in mouse-browse mode is certainly tedious, it's
definitely less so than having to move to the fit/100% buttons every time.
(Two-button mouse note: Two-button mice can be configured such that
clicking both buttons together emulates a middle-click. While my mouse
has/had a middle button, that's also the scrollwheel, and I used to have
issues with accidentally scrolling when I wanted to middle-click, or less
often, middle-clicking when I wanted to scroll. So when the middle-click
button broke I was actually a bit relieved as the scrolling functionality
was then uninterrupted and third-button click emulation using the other
two buttons worked well enough for me anyway. So here, I dual-click left/
right together to middle-click. That works well enough in gwenview,
particularly with the window-rule enlarged gwenview window size described
above so I don't have to do it so often. =:^)
2) Keyboard shortcuts. Given kde's common keyboard shortcut remapping
functionality, I long ago remapped keyboard shortcuts both in kde
globally and in gwenview specifically, so I've no longer any idea what
the default mapping might be. However, here's my zoom-related mapping:
Gwenview:
Zoom-to-fit: ctrl-right
Actual-size: ctrl-left
Zoom-in: ctrl-plus
Zoom-out: ctrl-minus
IIRC gwenview's default zoom-step is 100% at a time, way **WAY** to big
for me, so when gwenview changed that from it's earlier much smaller zoom-
step, I diffed the sources for the two versions and came up with a patch
that redefined the zoom-step to 5%. Since I run gentoo and build from
sources anyway, I was able to simply drop that patch in the appropriate
location, and it gets automatically applied when I rebuild gwenview --
which given I'm running live-sources and typically update once or twice a
week, automatically rebuilding gwenview if its sources have changed,
means I've rebuilt and applied that patch quite some number of times by
now. =:^)
So anyway, with that patch zoom-in and zoom-out do so in 5% steps for me,
not the 100% steps that are IIRC the default. =:^) I can of course post
the patch if you're interested...
But these days I don't actually use gwenview zooming, other than
occasionally the actual/fit toggling, so much. Instead:
Kwin whole-desktop zoom-effect:
Zoom-in: meta-ctrl-up
Zoom-out: meta-ctrl-down
Actual-size: meta-ctrl-left
(Meta is my "winkey", which I reserve for global kwin/window effect
shortcuts, meta/win-end to close a window, for instance, win-c for the
cube effect, etc. So win-arrow shortcuts make sense for zooming, but
simple win-arrow is reserved for left/right/up/down movement when zoomed,
so win-ctrl-arrow is what I use to zoom-in/out/normal.)
At least on Radeon graphics with the native kernel driver (I don't do
proprietary drivers), kwin's opengl-based zooming is more efficient and
of better quality than gwenview's, anyway. =:^)
FWIW I have kwin's zoom set to 1% zoom-steps. Which works really well
with auto-repeat, zooming in/out smoothly as I hold the keys down.
So all told the solution I use here is:
1) Multiple monitors and a kwin rule to set gwenview size larger than a
single monitor and generally larger than most images I view in gwenview.
2) Kwin whole-desktop zooming using keyboard shortcuts.
Less often but as necessary:
3) (Sometimes) Gwenview middle-click 100%/fit zoom toggle.
4) (Seldom) Gwenview keyboard shortcut zooming, using 5% zoom-step patch.
Meanwhile, as I mentioned, at one point I found gwenview's behavior a bit
broken for my needs. During that time I found a gtk-based alternative
that seems to work reasonably well, tho I never used it enough to become
as comfortable with it as I am with gwenview, and between my own behavior
changing and gwenview getting that small-image default-zoom behavior
checkbox, I'm back on gwenview now. But it's nice to have working
alternatives when they are needed, and this is mine:
gimageview, aka gimv . If you can't get gwenview behaving as you like,
try gimv and see if it works better for you. As I said it does seem to
be a reasonable alternative to gwenview for my usage, and tho gwenview's
working for me well enough now, having an alternative comes in useful
when it's not. =:^)
--
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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