419 lines
13 KiB
C++
419 lines
13 KiB
C++
/************************************************************************
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**
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** @file vabstractcurve.cpp
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** @author Roman Telezhynskyi <dismine(at)gmail.com>
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** @date 25 6, 2014
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**
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** @brief
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** @copyright
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** This source code is part of the Valentina project, a pattern making
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** program, whose allow create and modeling patterns of clothing.
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** Copyright (C) 2013-2015 Valentina project
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** <https://bitbucket.org/dismine/valentina> All Rights Reserved.
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**
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** Valentina 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 3 of the License, or
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** (at your option) any later version.
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**
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** Valentina 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 Valentina. If not, see <http://www.gnu.org/licenses/>.
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**
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*************************************************************************/
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#include "vabstractcurve.h"
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#include <QLine>
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#include <QLineF>
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#include <QMessageLogger>
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#include <QPainterPath>
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#include <QPoint>
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#include <QtDebug>
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#include "vabstractcurve_p.h"
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const qreal VAbstractCurve::lengthCurveDirectionArrow = 14;
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VAbstractCurve::VAbstractCurve(const GOType &type, const quint32 &idObject, const Draw &mode)
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:VGObject(type, idObject, mode), d (new VAbstractCurveData())
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{}
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//---------------------------------------------------------------------------------------------------------------------
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VAbstractCurve::VAbstractCurve(const VAbstractCurve &curve)
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:VGObject(curve), d (curve.d)
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{}
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//---------------------------------------------------------------------------------------------------------------------
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VAbstractCurve &VAbstractCurve::operator=(const VAbstractCurve &curve)
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{
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if ( &curve == this )
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{
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return *this;
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}
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VGObject::operator=(curve);
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d = curve.d;
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return *this;
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}
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//---------------------------------------------------------------------------------------------------------------------
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VAbstractCurve::~VAbstractCurve()
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{}
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//---------------------------------------------------------------------------------------------------------------------
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QVector<QPointF> VAbstractCurve::GetSegmentPoints(const QVector<QPointF> &points, const QPointF &begin,
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const QPointF &end, bool reverse)
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{
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QVector<QPointF> segment = points;
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if (reverse)
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{
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segment = GetReversePoints(segment);
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}
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QPointF start = begin;
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QPointF finish = end;
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if (begin == end)
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{
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start = segment.first();
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finish = segment.last();
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}
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segment = FromBegin(segment, start);
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segment = ToEnd(segment, finish);
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return segment;
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}
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//---------------------------------------------------------------------------------------------------------------------
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QVector<QPointF> VAbstractCurve::GetSegmentPoints(const QPointF &begin, const QPointF &end, bool reverse) const
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{
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return GetSegmentPoints(GetPoints(), begin, end, reverse);
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}
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//---------------------------------------------------------------------------------------------------------------------
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QVector<QPointF> VAbstractCurve::FromBegin(const QVector<QPointF> &points, const QPointF &begin, bool *ok)
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{
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if (points.count() >= 2)
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{
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if (points.first().toPoint() == begin.toPoint())
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{
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if (ok != nullptr)
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{
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*ok = true;
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}
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return points;
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}
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QVector<QPointF> segment;
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bool theBegin = false;
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for (qint32 i = 0; i < points.count()-1; ++i)
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{
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if (theBegin == false)
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{
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if (IsPointOnLineSegment(begin, points.at(i), points.at(i+1)))
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{
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theBegin = true;
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if (begin != points.at(i+1))
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{
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segment.append(begin);
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}
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if (i == points.count()-2)
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{
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segment.append(points.at(i+1));
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}
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}
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}
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else
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{
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segment.append(points.at(i));
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if (i == points.count()-2)
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{
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segment.append(points.at(i+1));
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}
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}
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}
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if (segment.isEmpty())
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{
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if (ok != nullptr)
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{
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*ok = false;
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}
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return points;
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}
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else
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{
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if (ok != nullptr)
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{
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*ok = true;
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}
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return segment;
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}
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}
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else
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{
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if (ok != nullptr)
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{
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*ok = false;
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}
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return points;
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}
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}
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//---------------------------------------------------------------------------------------------------------------------
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QVector<QPointF> VAbstractCurve::ToEnd(const QVector<QPointF> &points, const QPointF &end, bool *ok)
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{
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QVector<QPointF> reversed = GetReversePoints(points);
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reversed = FromBegin(reversed, end, ok);
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return GetReversePoints(reversed);
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}
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//---------------------------------------------------------------------------------------------------------------------
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QPainterPath VAbstractCurve::GetPath() const
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{
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QPainterPath path;
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const QVector<QPointF> points = GetPoints();
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if (points.count() >= 2)
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{
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path.addPolygon(QPolygonF(points));
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}
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else
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{
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qDebug()<<"points.count() < 2"<<Q_FUNC_INFO;
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}
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return path;
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}
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//---------------------------------------------------------------------------------------------------------------------
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qreal VAbstractCurve::GetLengthByPoint(const QPointF &point) const
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{
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const QVector<QPointF> points = GetPoints();
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if (points.size() < 2)
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{
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return -1;
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}
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if (points.first().toPoint() == point.toPoint())
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{
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return 0;
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}
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bool ok = false;
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const QVector<QPointF> segment = ToEnd(points, point, &ok);
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if (not ok)
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{
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return -1;
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}
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return PathLength(segment);
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief IntersectLine return list of points for real intersection with line
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* @param line line that intersect with curve
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* @return list of intersection points
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*/
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QVector<QPointF> VAbstractCurve::IntersectLine(const QLineF &line) const
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{
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return CurveIntersectLine(this->GetPoints(), line);
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}
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//---------------------------------------------------------------------------------------------------------------------
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bool VAbstractCurve::IsIntersectLine(const QLineF &line) const
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{
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const QVector<QPointF> points = IntersectLine(line);
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return not points.isEmpty();
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}
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//---------------------------------------------------------------------------------------------------------------------
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bool VAbstractCurve::IsPointOnCurve(const QVector<QPointF> &points, const QPointF &p)
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{
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if (points.isEmpty())
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{
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return false;
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}
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else if (points.size() < 2)
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{
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return points.at(0) == p;
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}
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else
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{
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for (qint32 i = 0; i < points.count()-1; ++i)
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{
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if (IsPointOnLineSegment(p, points.at(i), points.at(i+1)))
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{
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return true;
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}
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}
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}
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return false;
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}
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//---------------------------------------------------------------------------------------------------------------------
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bool VAbstractCurve::IsPointOnCurve(const QPointF &p) const
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{
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return IsPointOnCurve(GetPoints(), p);
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}
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//---------------------------------------------------------------------------------------------------------------------
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quint32 VAbstractCurve::GetDuplicate() const
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{
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return d->duplicate;
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VAbstractCurve::SetDuplicate(quint32 number)
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{
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d->duplicate = number;
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CreateName();
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}
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//---------------------------------------------------------------------------------------------------------------------
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QString VAbstractCurve::GetColor() const
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{
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return d->color;
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VAbstractCurve::SetColor(const QString &color)
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{
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d->color = color;
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}
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//---------------------------------------------------------------------------------------------------------------------
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QString VAbstractCurve::GetPenStyle() const
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{
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return d->penStyle;
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VAbstractCurve::SetPenStyle(const QString &penStyle)
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{
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d->penStyle = penStyle;
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}
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//---------------------------------------------------------------------------------------------------------------------
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qreal VAbstractCurve::GetApproximationScale() const
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{
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return d->approximationScale;
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VAbstractCurve::SetApproximationScale(qreal value)
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{
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d->approximationScale = value;
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}
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//---------------------------------------------------------------------------------------------------------------------
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QVector<QPointF> VAbstractCurve::CurveIntersectLine(const QVector<QPointF> &points, const QLineF &line)
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{
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QVector<QPointF> intersections;
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for ( auto i = 0; i < points.count()-1; ++i )
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{
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QPointF crosPoint;
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const auto type = line.intersect(QLineF(points.at(i), points.at(i+1)), &crosPoint);
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if ( type == QLineF::BoundedIntersection )
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{
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intersections.append(crosPoint);
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}
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}
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return intersections;
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}
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//---------------------------------------------------------------------------------------------------------------------
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QVector<DirectionArrow> VAbstractCurve::DirectionArrows() const
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{
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QVector<DirectionArrow> arrows;
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const QVector<QPointF> points = GetPoints();
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if (points.count() >= 2)
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{
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/*Need find coordinate midle of curve.
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Universal way is take all points and find sum.*/
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const qreal seek_length = qAbs(GetLength())/2.0;
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qreal found_length = 0;
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QLineF arrow;
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for (qint32 i = 1; i <= points.size()-1; ++i)
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{
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arrow = QLineF(points.at(i-1), points.at(i));
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found_length += arrow.length();//Length that we aready find
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if (seek_length <= found_length)// if have found more that need stop.
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{
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//subtract length in last line and you will find position of the middle point.
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arrow.setLength(arrow.length() - (found_length - seek_length));
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break;
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}
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}
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//Reverse line because we want start arrow from this point
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arrow = QLineF(arrow.p2(), arrow.p1());
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const qreal angle = arrow.angle();//we each time change line angle, better save original angle value
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arrow.setLength(lengthCurveDirectionArrow);//arrow length in pixels
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DirectionArrow dArrow;
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arrow.setAngle(angle-35);
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dArrow.first = arrow;
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arrow.setAngle(angle+35);
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dArrow.second = arrow;
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arrows.append(dArrow);
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}
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return arrows;
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}
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//---------------------------------------------------------------------------------------------------------------------
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QPainterPath VAbstractCurve::ShowDirection(const QVector<DirectionArrow> &arrows, qreal width)
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{
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QPainterPath path;
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for (int i = 0; i < arrows.size(); ++i)
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{
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const DirectionArrow arrow = arrows.at(i);
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if (not arrow.first.isNull() && not arrow.second.isNull())
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{
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QPainterPath arrowPath;
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QLineF line = arrow.first;
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line.setLength(width);
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arrowPath.moveTo(line.p1());
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arrowPath.lineTo(line.p2());
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line = arrow.second;
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line.setLength(width);
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arrowPath.moveTo(line.p1());
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arrowPath.lineTo(line.p2());
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path.addPath(arrowPath);
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}
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}
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return path;
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}
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//---------------------------------------------------------------------------------------------------------------------
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qreal VAbstractCurve::PathLength(const QVector<QPointF> &path)
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{
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if (path.size() < 2)
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{
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return 0;
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}
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QPainterPath splinePath;
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splinePath.moveTo(path.at(0));
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for (qint32 i = 1; i < path.count(); ++i)
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{
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splinePath.lineTo(path.at(i));
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}
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return splinePath.length();
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}
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