Posted by
Fred Damen on
URL: http://imagej.273.s1.nabble.com/Ctrl-Shift-keys-and-arrow-keys-tp5022996p5023003.html
Greetings Michael,
In a short example: When trying to restore any roi in a image window, with
the cursor in the image window I hit Ctrl-Shift-e and the roi is not
restored but I see...
+--------------+
| title |
+--------------+
| |
| |
| |
| |
| |
+-+ |
|e| |
+-+--------------+
Any Ctrl-Shift-(letter) causes the same results. Ctrl-(letter) or
Shift-(letter) works fine. Using the main window menu item that
corresponds to the key sequence always works. This does not happen with
any other applications that I have. So there is something that is paying
attention to my key stokes while using ImageJ. ImageJ is the only Java
program that I am using. I have upgraded and / or restarted ImageJ many
times and it still happens. I have yet to figure out what I do to put it
into this mode, or what is guaranteed to take it out of this mode.
For #2 below: This is independent from #1 and happens randomly on
different systems. I use the arrow keys to move roi(s), (mostly a point
roi), around in an image window. Some times I will do something else in
ImageJ and then go back to moving the roi around and the left/right work
as expected, but the up/down act like +/-. As this happens randomly and
infrequently I have not tracked it down to a specific cause(s). It seems
as though a key handler is changing its interpretation of these keys for
some reason. That reason seems to get reset to normal after a
genericdialog is presented.
--------
[BTW, I did not understand your other post on CTRL-SHIFT under Fedora;
is this about using the text tool on an image? Can you supply a
screenshot to explain (Plugins>Utilities>Capture Delayed)? Replies in
that thread, please]
Michael
-------
Thanks,
Fred
On Sun, March 1, 2020 12:34 am, Fred Damen wrote:
> Greetings,
>
> I have two separate issues with key combinations.
>
> 1) After upgrading to Fedora 31 and a somewhat recent version of ImageJ, I
> startted noticing that the Ctrl-Shift keys commands stop working and the
> letter key was being drawn in a tiny tab just outside the lower left
> corner of the window. This randomly start happening, then after a while,
> stop happening, I have yet to figure out the triggering event(s). Using
> just the Ctrl OR shift modifier does not seem to be involved. Although I
> do not suspect that this is a ImageJ issue per se, but this is the only
> place that I have seen this. Does anyone have any insight as to what this
> is and how to disable it?
>
> 2) At some random point in ImageWindow(s) the up and down arrow keys will
> perform the equivalent of the the + and - keys. The left and right arrow
> keys are not affected. Causing a popup menu to appear seems to remap the
> up and down arrow keys back to moving an Roi around.
>
> Thanks in advance,
>
> Fred
>
> --
> ImageJ mailing list:
http://imagej.nih.gov/ij/list.html>
--
ImageJ mailing list:
http://imagej.nih.gov/ij/list.html