Bug 17400 - kghostview non-intuitive scrolling with 'page down'
Summary: kghostview non-intuitive scrolling with 'page down'
Status: RESOLVED INTENTIONAL
Alias: None
Product: kghostview
Classification: Unmaintained
Component: general (show other bugs)
Version: unspecified
Platform: Mandrake RPMs Other
: NOR wishlist
Target Milestone: ---
Assignee: Wilco Greven
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2000-12-20 00:48 UTC by stig
Modified: 2003-09-17 20:14 UTC (History)
3 users (show)

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Description stig 2000-12-20 00:45:56 UTC
(*** This bug was imported into bugs.kde.org ***)

Package: kghostview
Version: 2.0 mandrake
Severity: normal
Installed from: mandrake rpms


intuitively page up/down are used to view more text.  but in kghostview they flip pages...
regardless of whether you've seen the whole of a page or not.

correct behavior would be to scroll to the bottom of the page then go to the top of the next page etcetera

(submitted via bugs.kde.org)
Comment 1 oever 2002-12-05 00:28:08 UTC
This bug says that PgUp/PgDn should be for half pages. That's not the way 
other programs with similar tasks (gv and kdvi) work. Acroread does work like 
this, but I think PgUp should scroll a page up and not a screen. The spacebar 
scrolls down a screen in kghostview. 
 
 
Comment 2 stig 2002-12-05 23:58:27 UTC
the important thing is that page-oriented viewing be preserved.  It wouldn't
work particularly well to emulate word-processor layout for a document that's
say, 2-up landscape.  too confusing...

intuitively, for viewing prepress formats such as PDF, one wants pgdn to move
onto the next page worth of text, which may hit a page boundary, in which case
it would align the bottom of the page with the bottom of the window and actually
move the viewport less than a full page.

moving by whole pages, regardless of the user has seen on the screen is sadistic.
Comment 3 stig 2002-12-06 00:20:38 UTC
upon re-reading comments from oever@fenk.wau.nl, i must add that SPACEBAR IS AN
AWFULLY NON-INTUITIVE SCROLLING KEY....

why? 

 1. across apps, keys ought to do roughly the same things.  
    spacebar is usually for typing.  

 2. directional movement keys come in pairs.  
    that are close to one another for simpler navigation.
    left-right up-down page-up-page-down.
    the spacebar has no obvious opposite...
    ...(space backspace you propose?)...
    ...that can be easily typed with the same hand.
Comment 4 Jens 2003-05-15 09:15:15 UTC
Actually, I think this bug can be closed, the behaviour has been changed completely in CVS of March 
2003. 
 
Comment 5 Matt Rogers 2003-05-15 09:23:33 UTC
in branch, or head, or both? I see this error as well with 3.1.1a. IMHO, it should be fixed in 
branch as well. 
Comment 6 Leston Buell 2003-06-24 15:38:58 UTC
In what way has the behavior been changed? I think that it's very important to
maintain consistency with the behavior of kdvi.

As for the space bar for scrolling, kdvi also uses this. At least in the version
of kghostview i have (in KDE 3.0.5a), scroll down uses space bar to scroll down
while scroll up uses shift+space. Kdvi is going to be implementing shift+space
for scrolling up to match kghostview's behavior. (See bug 58826.) So, i hope
that this hasn't all been undone.
Comment 7 Leston Buell 2003-07-10 03:19:59 UTC
Please indicate how the behavior has been changed. The following programs have
been found to use the spacebar to scroll down: Mozilla, Konqueror, KDVI, and
Ghostview. If KGhostView does not implement the spacebar to scroll down, then it
will have non-standard behavior.
Comment 8 Leston Buell 2003-07-10 09:14:44 UTC
Bug 61028 now requests space/shift+space scrolling be added to the KDE HIG.
Comment 9 Ferdinand Gassauer 2003-07-12 08:58:50 UTC
scroll down behaves like page down, i.e jumps to the end of the next page 
(scroll up works correctly) 
 
BTW - please implement icons for scrolling  
- novice users will NOT find the space/shift space shortcuts to scroll  
 
Comment 10 Luís Pedro Coelho 2003-09-17 20:14:41 UTC
This bug has become a discussion of a lot of diferent things. 
 
However, taking the original bug ("PgDown" changes pages), I am not going to fix it. 
It changes pages and will do so for some time. 
 
Therefore, I am closing this as WONTFIX. 
If there are any bugs in the keyboard handling (there might be - keyboard handling 
needs to be re-factored), then, please, open a specific limited bug report 
 
luis