/**************************************************************************** ** ** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. ** ** This file is part of the QtGui module of the Qt Toolkit. ** ** This file may be used under the terms of the GNU General Public ** License versions 2.0 or 3.0 as published by the Free Software ** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3 ** included in the packaging of this file. Alternatively you may (at ** your option) use any later version of the GNU General Public ** License if such license has been publicly approved by Trolltech ASA ** (or its successors, if any) and the KDE Free Qt Foundation. In ** addition, as a special exception, Trolltech gives you certain ** additional rights. These rights are described in the Trolltech GPL ** Exception version 1.1, which can be found at ** http://www.trolltech.com/products/qt/gplexception/ and in the file ** GPL_EXCEPTION.txt in this package. ** ** Please review the following information to ensure GNU General ** Public Licensing requirements will be met: ** http://trolltech.com/products/qt/licenses/licensing/opensource/. If ** you are unsure which license is appropriate for your use, please ** review the following information: ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview ** or contact the sales department at sales@trolltech.com. ** ** In addition, as a special exception, Trolltech, as the sole ** copyright holder for Qt Designer, grants users of the Qt/Eclipse ** Integration plug-in the right for the Qt/Eclipse Integration to ** link to functionality provided by Qt Designer and its related ** libraries. ** ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE. Trolltech reserves all rights not expressly ** granted herein. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ****************************************************************************/ #ifndef QMATH_P_H #define QMATH_P_H // // W A R N I N G // ------------- // // This file is not part of the Qt API. It exists purely as an // implementation detail. This header file may change from version to // version without notice, or even be removed. // // We mean it. // #include <math.h> static const double Q_PI = 3.14159265358979323846; // pi static const double Q_2PI = 6.28318530717958647693; // 2*pi static const double Q_PI2 = 1.57079632679489661923; // pi/2 inline int qCeil(qreal v) { #ifdef QT_USE_MATH_H_FLOATS if (sizeof(qreal) == sizeof(float)) return int(ceilf(v)); else #endif return int(ceil(v)); } inline int qFloor(qreal v) { #ifdef QT_USE_MATH_H_FLOATS if (sizeof(qreal) == sizeof(float)) return int(floorf(v)); else #endif return int(floor(v)); } inline qreal qSin(qreal v) { #ifdef QT_USE_MATH_H_FLOATS if (sizeof(qreal) == sizeof(float)) return sinf(v); else #endif return sin(v); } inline qreal qCos(qreal v) { #ifdef QT_USE_MATH_H_FLOATS if (sizeof(qreal) == sizeof(float)) return cosf(v); else #endif return cos(v); } inline qreal qSqrt(qreal v) { #ifdef QT_USE_MATH_H_FLOATS if (sizeof(qreal) == sizeof(float)) return sqrtf(v); else #endif return sqrt(v); } inline qreal qLog(qreal v) { #ifdef QT_USE_MATH_H_FLOATS if (sizeof(qreal) == sizeof(float)) return logf(v); else #endif return log(v); } #endif // QMATH_P_H