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fix(scoreboard): the strip and the social bar now really share the frame

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Reported: the ticker was painting OVER the socials. The coupling rule existed and was tested
(ScoreboardLayout.ResolveEdges) but nothing ever CALLED it — the strip's Y still came from its own
preference, so both bars landed on the south edge.

Now the resolution runs at publish time: the social bar keeps its side, the scoreboard takes the
other one, and its Y follows from that edge. The pair re-sorts whenever the social bar moves (the
preview click-toggle) or shows/hides, because the rule is "resolve from what is visible", not a
stored pairing.

The layer also gains an Edge preference (Top/Bottom) in its properties, labelled "socials take the
other" — a preference, never a claim on an occupied edge.

Also stabilised the opacity assertion: it samples a plate-only pixel 5px from the left edge instead
of the first semi-transparent pixel it finds (which could be anti-aliased text).
This commit is contained in:
gramps
2026-10-30 15:11:35 -07:00
parent e27e79962c
commit 882b8551d9
5 changed files with 40 additions and 17 deletions
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ytLive.Tests/ScoreboardRendererTests.cs
+3 -6
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@@ -55,12 +55,9 @@ public class ScoreboardRendererTests
// Opacity: 20% and 80% must produce visibly different plate transparency.
var faint = ScoreboardRenderer.Render(Tiles, new ScoreboardStyle("#FFFFFF", true, "#0000FF", 0.2));
var solid = ScoreboardRenderer.Render(Tiles, new ScoreboardStyle("#FFFFFF", true, "#0000FF", 0.8));
int AlphaOf(VideoFrame f)
{
for (var i = 3; i < f.BgraPixels.Length; i += 4)
if (f.BgraPixels[i] is > 10 and < 245) return f.BgraPixels[i];
return 0;
}
// Sample a plate-only pixel (5px in from the left edge, vertical middle): the text is
// centred, so nothing anti-aliased can pollute the alpha reading.
static int AlphaOf(VideoFrame f) => f.BgraPixels[((f.Height / 2) * f.Width + 5) * 4 + 3];
Assert.InRange(AlphaOf(faint!), 35, 70); // ~20% of 255
Assert.InRange(AlphaOf(solid!), 190, 220); // ~80% of 255
Assert.True(AlphaOf(solid!) > AlphaOf(faint!) + 100, "the opacity slider must move the alpha");