After an evaluation, GNOME has moved from Bugzilla to GitLab. Learn more about GitLab.
No new issues can be reported in GNOME Bugzilla anymore.
To report an issue in a GNOME project, go to GNOME GitLab.
Do not go to GNOME Gitlab for: Bluefish, Doxygen, GnuCash, GStreamer, java-gnome, LDTP, NetworkManager, Tomboy.
Bug 121331 - Color Picker tool could be made to set the opacity of the current tool
Color Picker tool could be made to set the opacity of the current tool
Status: RESOLVED WONTFIX
Product: GIMP
Classification: Other
Component: Tools
unspecified
Other All
: Normal enhancement
: ---
Assigned To: GIMP Bugs
GIMP Bugs
Depends on:
Blocks:
 
 
Reported: 2003-09-03 06:00 UTC by Joao S. O. Bueno
Modified: 2004-12-22 21:47 UTC
See Also:
GNOME target: ---
GNOME version: ---



Description Joao S. O. Bueno 2003-09-03 06:00:11 UTC
When using the color picker through holding  
"control" while painting, the alpha 
value picked by it should be used 
to set the opacity of the parent painting 
tool. 
 
Not only that seens intuitive, as it will make 
a color match when it´s picked this way. 
 
Without this one have to: 
-switch to the "permanent" color picker tool, as 
if the "control" facility did not exist; 
-Check the desired alpha value with it; 
- convert it mentally from the 0-255 alpha range 
to the 0.0-100.0 opacity range; 
-switch back to the original paint tool; 
- set the opacity accordingly.
Comment 1 Sven Neumann 2003-09-03 08:39:19 UTC
Please note that the color-picker in the latest 1.3 versions shows the
alpha information as percentage as well.

Your suggestion needs some discussion. I expect quite a few users to
disagree with it. Perhaps you can raise the issue on the mailing-lists.
Comment 2 Sven Neumann 2003-09-07 15:25:11 UTC
Here's what I wrote at the mailing-list on this subject:

  I doubt that this would be useful in general. Actually I can only
  imagine workflows where I would not want the color-picker to affect
  the tool opacity. When doing retouching you usually set the brush
  opacity to some lower value in order to carefully apply some color
  where needed. While doing this you frequently pick colors from other
  places in the image. In most cases these places are opaque but you
  definitely don't want the brush opacity to change to 100%. You want
  to pick up the color, not the alpha value.

Thus, I vote for closing this report as WONTFIX.
Comment 3 Joao S. O. Bueno 2003-09-26 05:06:07 UTC
Ok. 
 
But maybe it could be made a tool option. It owould require a GMP 
wide opacity that would be updated by the picker, and in each tool, 
onde could select between using the tool opacity (default), or the 
gimp-wide opacity. 
 
Let it be for now, and we will bring on the lists when figuring 
chanegs for 2.2.