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[apps] InteractCurveVwCtlr::addMargin adds more than the required margin

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Léa Saviot
2020-05-14 10:59:59 +02:00
committed by EmilieNumworks
parent ee78948cf8
commit a0c5a1fe1c
1 changed files with 5 additions and 1 deletions
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6
apps/shared/interactive_curve_view_controller.cpp
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@@ -57,7 +57,11 @@ float InteractiveCurveViewController::addMargin(float y, float range, bool isVer
assert(topMarginRatio + bottomMarginRatio < 1); // Assertion so that the formula is correct
float ratioDenominator = 1 - bottomMarginRatio - topMarginRatio;
float ratio = isMin ? -bottomMarginRatio : topMarginRatio;
ratio = ratio / ratioDenominator;
/* We want to add slightly more than the required margin, so that
* InteractiveCurveViewRange::panToMakePointVisible does not think a point is
* invisible due to precision problems when checking if it is outside the
* required margin. This is why we add a 1.05f factor. */
ratio = 1.05f * ratio / ratioDenominator;
return y + ratio * range;
}