[Octave-bug-tracker] [bug #57128] no visual clue (graying) to enable=off for uicontrols

[Rik]

Follow-up Comment #8, bug #57128 (project octave):

On the coloring, Matlab seems to have a special quirk.  When the background is
the default ([0.94, 0.94, 0.94]) it renders the background as white ([1 1 1])
instead.  It seems stupid to have that sort of special case.  Attached is a
test script which shows that behavior.


figure;
str = repmat ("on ", 1, 100);
h = uicontrol (...
  'Style','edit', ...
  'Units','normalized', ...
  'Position',[0.25 0.25 0.5 0.2], ...
  'Max',2, ...
  'String', str);

disp ('Default background: '), get (h, 'backgroundcolor')
disp ("Notice background is white ([1 1 1])");
pause (2)
set (h, 'backgroundcolor', 'm');
disp ('Magenta background: '), get (h, 'backgroundcolor')
disp ("Background color now reflects backgroundcolor property");
pause (2)
set (h, 'backgroundcolor', [0.94, 0.94, 0.95]);
disp ('Backgroundcolor [0.94, 0.94, 0.95] (last value not default)');
disp ('Notice that background is now grey which matches the values set');
pause (2)
set (h, 'backgroundcolor', [0.94, 0.94, 0.94]);
disp ('Backgroundcolor [0.94, 0.94, 0.94] which is default, but shows up as
white');




(file #48950)
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Additional Item Attachment:

File name: tst_edit_bg.m                  Size:0 KB
    <https://savannah.gnu.org/file/tst_edit_bg.m?file_id=48950>



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