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70 lines
2.7 KiB
70 lines
2.7 KiB
/*
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* Copyright (C) 2015-2022 Département de l'Instruction Publique (DIP-SEM)
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*
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* Copyright (C) 2013 Open Education Foundation
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*
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* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
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* l'Education Numérique en Afrique (GIP ENA)
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*
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* This file is part of OpenBoard.
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*
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* OpenBoard is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License,
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* with a specific linking exception for the OpenSSL project's
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* "OpenSSL" library (or with modified versions of it that use the
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* same license as the "OpenSSL" library).
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*
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* OpenBoard is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef UBGEOMETRYUTILS_H_
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#define UBGEOMETRYUTILS_H_
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#include <QtGui>
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class UBGeometryUtils
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{
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private:
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UBGeometryUtils();
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virtual ~UBGeometryUtils();
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public:
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static QPolygonF lineToPolygon(const QLineF& pLine, const qreal& pWidth);
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static QPolygonF lineToPolygon(const QLineF& pLine, const qreal& pStartWidth, const qreal& pEndWidth);
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static QRectF lineToInnerRect(const QLineF& pLine, const qreal& pWidth);
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static QPolygonF arcToPolygon(const QLineF& startRadius, qreal spanAngle, qreal width);
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static QPolygonF lineToPolygon(const QPointF& pStart, const QPointF& pEnd,
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const qreal& pStartWidth, const qreal& pEndWidth);
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static QPolygonF curveToPolygon(const QList<QPointF>& points, qreal startWidth, qreal endWidth);
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static QPolygonF curveToPolygon(const QList<QPair<QPointF, qreal> >& points, bool roundStart, bool roundEnd);
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static QPointF pointConstrainedInRect(QPointF point, QRectF rect);
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static QPoint pointConstrainedInRect(QPoint point, QRect rect);
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static void crashPointList(QVector<QPointF> &points);
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static qreal angle(const QPointF& p1, const QPointF& p2, const QPointF& p3);
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static QList<QPointF> quadraticBezier(const QPointF& p0, const QPointF& p1, const QPointF& p2, unsigned int nPoints);
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const static int centimeterGraduationHeight;
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const static int halfCentimeterGraduationHeight;
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const static int millimeterGraduationHeight;
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const static int millimetersPerCentimeter;
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const static int millimetersPerHalfCentimeter;
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const static float inchSize;
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};
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#endif /* UBGEOMETRYUTILS_H_ */
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