GNOME Bugzilla – Bug 678472
GEGL operation sliders range malfunctioning
Last modified: 2012-12-01 23:52:52 UTC
The sliders for GEGL operations don't work well on my system (native OS X 2.8.0 build by Partha, OS X 10.7.3). For some operations (for example dropshadow) the slider won't move, but the value will jump instantly to a very high value: 179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.00. It happens both when using the mouse and when using my Wacom tablet. Another user with a Wacom tablet installed has reported the same problem on the Gimpchat forum: http://www.gimpchat.com/viewtopic.php?f=7&t=4440&start=120#p56169 (see two posts lower for details).
Adding my 2cents worth to this report. I have the following system.... 2.39 Ghz Intel Core 2 Duo, 4GB Ram, Asus N51 Laptop with Mac OS 10.6.8 I am having same issue as the author of this report. I have the same version of the Gimp as well. Here is a list of all sliders I had issues with: Perlin-Noise ...all sliders fail except last one Iteration Matting-Global...only one slider here but it is "sensitive" like the "polar-cooridinates" slider. Grid... all sliders "sensitive' Fractal Explorer...Width, Height "sensitive" Drop Shadow...x, y don't move/numbers huge, Radius Sensitive checkerboard...all sliders sensitive Shear Origin x, y and x,y don't move/high number value Waves…x, y don't move/high number value Translate.. origin x, y and x,y don't move/high number value Transform… x, y don't move/high number value Scale size.. Origin x,y and x,y don't move/high number value Scale ratio… Origin x,y and x,y don't move/high number value Scale…Origin x,y and x,y don't move/high number value Rotate… Origin x,y and degrees… don't move/high number value Reflect.. Origin x,y and x,y don't move/high number value Polar-coordinates x,y sensitive sliders…they slide but numbers are huge..uncontrollable Perlin-Noise…all sliders except last do not move/give high number value…"iteration" works fine. Matting Global.. the only slider does move but no fine control.. is sensitive…it like others goes from 1 to 15230381 (note: this value only from this filter…but this same type problem I've seen in other sliders I've already mentioned. Grid…all sliders move but are sensitive, don't give fine control over values. Fractal explore…Width and Height…no fine control with this moving slider. Dropshadow…x,y don't move/high number value… Radius slider is sensitive no fine control checkerboard…all sliders sensitive..no fine control.
Although I didn't face weird slider movement nor non-movement I found a similar problem with the ranges, see bug #673863. The 'non-moving sliders'-issue could probably be the result of instant preview. Maybe you had the 'Preview' checkbox enabled?
GEGL operations need to set proper UI ranges so the GUI can pick them up.
This is reported against 2.8.x, human/ui ranges are used for sliders in 2.9.x