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50 lines
2.1 KiB
C++
50 lines
2.1 KiB
C++
/*
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Copyright 2006-2020 The QElectroTech Team
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This file is part of QElectroTech.
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QElectroTech 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, either version 2 of the License, or
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(at your option) any later version.
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QElectroTech 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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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef QETGRAPHICSHANDLERUTILITY_H
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#define QETGRAPHICSHANDLERUTILITY_H
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#include <QRectF>
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#include <QLineF>
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#include <QPolygonF>
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class QPainter;
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/**
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@brief The QetGraphicsHandlerUtility class
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This class provide some methods to create and use handler for
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modify graphics shape like line rectangle etc...
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They also provide some conveniance static method.
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*/
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class QetGraphicsHandlerUtility
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{
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public:
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static QVector <QPointF> pointsForRect (const QRectF &rect);
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static QVector <QPointF> pointsForLine (const QLineF &line);
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static QVector <QPointF> pointsForArc (const QRectF &rect, qreal start_angle, qreal span_angle);
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static QRectF rectForPosAtIndex (const QRectF &old_rect, const QPointF &pos, int index);
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static QRectF mirrorRectForPosAtIndex (const QRectF &old_rect, const QPointF &pos, int index);
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static QRectF rectForArc (const QRectF &rect, qreal start_angle, qreal span_angle);
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static QLineF lineForPosAtIndex (const QLineF &old_line, const QPointF &pos, int index);
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static QPolygonF polygonForInsertPoint(const QPolygonF &old_polygon, bool closed, const QPointF &pos);
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static QVector <QPointF> pointForRadiusRect (const QRectF &rect, qreal xRadius, qreal yRadius, Qt::SizeMode mode = Qt::AbsoluteSize);
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static qreal radiusForPosAtIndex (const QRectF &rect, const QPointF &pos, int index, Qt::SizeMode mode = Qt::AbsoluteSize);
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static qreal percentageInRange(qreal min, qreal max, qreal value);
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};
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#endif // QETGRAPHICSHANDLERUTILITY_H
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