[Kst] kst 2.0 : pan and zoom with cursor keys .. erratic?

Barth Netterfield barth.netterfield at gmail.com
Wed Aug 11 19:44:09 CEST 2010

I also have experienced occasions where the mouse is ignored under
linux.  This should be looked into.

Can you submit a bug report?


On Wed, Aug 11, 2010 at 4:49 AM, Peter Milne <Peter.Milne at d-tacq.com> wrote:
> Something that I've noticed appears to be in all versions of Kst 2.0,
> but haven't been able to pin down:
> A feature that is very useful is the cursor key PAN/ZOOM capability:
> This works well for examining large data sets - pan at low zoom, zoom in
> to region of interest, zoom out, pan again.
> However, in my experience, the feature works some but not all the time
> under Linux, and never works under Windows. It could be that I'm not
> driving it correctly, but don't recall having any problem at all in
> (Linux) Kst 1.8.
> While testing for this message, in one session of Kst (Linux), one View
> tab had working cursor keys, while another didn't. However, after saving
> state, quitting Kst, re-run Kst, reload state, all the Views work ..
> that is a reasonable work-around on Linux, but doesn't help on Win. On
> Win, the only way to work is: right-click, zoom maximum, rubber-band
> area of interest and zoom in - all very usable of course, but near
> impossible to pan through zoomed data.
> Another issue (cosmetic, but may be related) is displayed cursor state.
> We start off with a cross hair.
> PAN LEFT, PAN RIGHT : still a cross-hair : good
> UP, DOWN : vertical axis pan : good
> SHIFT LEFT : cursor changes to "Up Down Arrow", a horizontal guide line
> appears, but the ZOOM IN function still works.
> Wrong Cursor!.
> When the mouse pointer leaves the window, and returns, then we are back
> to the cross hair.
> SHIFT UP / SHIFT DOWN : cursor changes to "Up Down Arrow", and the
> vertical range changes - Good.
> To be consistent, the cursor should change to "Left Right Arrow" when
> the X ZOOM IN, X ZOOM OUT functions are active. The cursor should reset
> to "Cross Hair" when any of the PAN functions (no-shift L,R,U,D) are
> invoked.
> Did anyone else see this?.
> Is it a known feature?
> Would two bug reports be helpful?
> #1 Pan/Zoom feature broken (functional)
> #2 Pointer shape change inconsistent (cosmetic).
> --
> Peter Milne                     Peter.Milne at d-tacq.com
> D-TACQ Solutions Ltd            www.d-tacq.com
> _______________________________________________
> Kst mailing list
> Kst at kde.org
> https://mail.kde.org/mailman/listinfo/kst

C. Barth Netterfield
University of Toronto

More information about the Kst mailing list