From 8f28b68bcd1e18529ebece8c94133443b925ebab Mon Sep 17 00:00:00 2001 From: Aleksandar Sasha Babic Date: Fri, 11 Dec 2009 15:03:19 +0100 Subject: qreal-ization In some places we do have direct math related calls. Almost all are calling the double precision functions even if the args and results are float. This leads to unnecessary float->double and double->float transitions. By using wrapper functions we can control which functrion variants are effectively called. Task-number: QTBUG-4894 Reviewed-by: Shane Kearns --- src/corelib/tools/qline.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/corelib/tools/qline.cpp b/src/corelib/tools/qline.cpp index d0afb7a..8112757 100644 --- a/src/corelib/tools/qline.cpp +++ b/src/corelib/tools/qline.cpp @@ -574,7 +574,7 @@ qreal QLineF::angle() const const qreal dx = pt2.x() - pt1.x(); const qreal dy = pt2.y() - pt1.y(); - const qreal theta = atan2(-dy, dx) * 360.0 / M_2PI; + const qreal theta = qAtan2(-dy, dx) * 360.0 / M_2PI; const qreal theta_normalized = theta < 0 ? theta + 360 : theta; @@ -814,7 +814,7 @@ qreal QLineF::angle(const QLineF &l) const qreal cos_line = (dx()*l.dx() + dy()*l.dy()) / (length()*l.length()); qreal rad = 0; // only accept cos_line in the range [-1,1], if it is outside, use 0 (we return 0 rather than PI for those cases) - if (cos_line >= -1.0 && cos_line <= 1.0) rad = acos( cos_line ); + if (cos_line >= -1.0 && cos_line <= 1.0) rad = qAcos( cos_line ); return rad * 360 / M_2PI; } -- cgit v0.12