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Fix: setReadOnly(false) was having no effect

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As noted in this discourse post:
https://discourse.psychopy.org/t/slider-setreadonly-sets-contrast-incorrectly/7055

Also, I wonder if we should be changing contrast by halving the color
values (if they are signed color vals) rather than the transparency, in
keeping with the Python version. Transparency will be weird if the scale
is on a textured backgorund?
This commit is contained in:
Jon Peirce 2019-04-10 17:36:21 +01:00
parent becf79b5d6
commit 9f0d4f75ce
1 changed files with 2 additions and 0 deletions
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2
js/visual/Slider.js
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@ -274,6 +274,8 @@ export class Slider extends util.mix(VisualStim).with(ColorMixin)
// halve the opacity:
if (readOnly)
this._opacity /= 2.0;
else
this._opacity *= 2.0;
this._needUpdate = true;
}