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Bug 1981 - Mac: Background of pan/gain sliders wrong color in Light theme.

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This commit is contained in:
James Crook 2018-09-19 16:16:42 +01:00
parent 42efe53884
commit e4bdd68c70
1 changed files with 10 additions and 0 deletions
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10
src/widgets/ASlider.cpp
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@ -641,6 +641,16 @@ void LWSlider::DrawToBitmap(wxDC & paintDC)
wxColour backgroundColour = theTheme.Colour(clrTrackInfo); wxColour backgroundColour = theTheme.Colour(clrTrackInfo);
if( mHW ) if( mHW )
backgroundColour = mParent->GetBackgroundColour(); backgroundColour = mParent->GetBackgroundColour();
// Bug 1981 workaround.
// On Mac the colour may end up being the system background colour.
// For some reason (not yet known) the mask does not work in that case.
// So perturb the colour very slightly to work around that.
// (we can actually perterb it a lot before the anti-aliassing starts
// to look bad)
backgroundColour = wxColour( backgroundColour.Red(),
backgroundColour.Green(),
backgroundColour.Blue() ^1 );
dc.SetBackground(wxBrush(backgroundColour)); dc.SetBackground(wxBrush(backgroundColour));
dc.Clear(); dc.Clear();