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Remove unused function "quadraticRoots"

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qbezier.cpp(122): warning #177: function "quadraticRoots" was declared but never referenced

Change-Id: I590f59ed6e41462d0a14a9239adb8bd0acbeeae4
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
This commit is contained in:
Thiago Macieira 2013-12-06 22:35:29 -08:00 committed by The Qt Project
parent a115fdbe02
commit e6799c6e33
1 changed files with 0 additions and 31 deletions
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31
src/gui/painting/qbezier.cpp
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@ -119,37 +119,6 @@ QBezier QBezier::getSubRange(qreal t0, qreal t1) const
return result;
}
static inline int quadraticRoots(qreal a, qreal b, qreal c,
qreal *x1, qreal *x2)
{
if (qFuzzyIsNull(a)) {
if (qFuzzyIsNull(b))
return 0;
*x1 = *x2 = (-c / b);
return 1;
} else {
const qreal det = b * b - 4 * a * c;
if (qFuzzyIsNull(det)) {
*x1 = *x2 = -b / (2 * a);
return 1;
}
if (det > 0) {
if (qFuzzyIsNull(b)) {
*x2 = qSqrt(-c / a);
*x1 = -(*x2);
return 2;
}
const qreal stableA = b / (2 * a);
const qreal stableB = c / (a * stableA * stableA);
const qreal stableC = -1 - qSqrt(1 - stableB);
*x2 = stableA * stableC;
*x1 = (stableA * stableB) / stableC;
return 2;
} else
return 0;
}
}
void QBezier::addToPolygon(QPolygonF *polygon, qreal bezier_flattening_threshold) const
{
QBezier beziers[10];