179 lines
7.5 KiB
C++
179 lines
7.5 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Valentina project All Rights Reserved.
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**
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** This file is part of Valentina.
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**
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** Tox 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 "vabstracttool.h"
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const QString VAbstractTool::AttrId = QStringLiteral("id");
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const QString VAbstractTool::AttrType = QStringLiteral("type");
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const QString VAbstractTool::AttrMx = QStringLiteral("mx");
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const QString VAbstractTool::AttrMy = QStringLiteral("my");
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const QString VAbstractTool::AttrName = QStringLiteral("name");
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const QString VAbstractTool::AttrX = QStringLiteral("x");
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const QString VAbstractTool::AttrY = QStringLiteral("y");
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const QString VAbstractTool::AttrTypeLine = QStringLiteral("typeLine");
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const QString VAbstractTool::AttrLength = QStringLiteral("length");
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const QString VAbstractTool::AttrBasePoint = QStringLiteral("basePoint");
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const QString VAbstractTool::AttrFirstPoint = QStringLiteral("firstPoint");
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const QString VAbstractTool::AttrSecondPoint = QStringLiteral("secondPoint");
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const QString VAbstractTool::AttrThirdPoint = QStringLiteral("thirdPoint");
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const QString VAbstractTool::AttrCenter = QStringLiteral("center");
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const QString VAbstractTool::AttrRadius = QStringLiteral("radius");
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const QString VAbstractTool::AttrAngle = QStringLiteral("angle");
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const QString VAbstractTool::AttrAngle1 = QStringLiteral("angle1");
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const QString VAbstractTool::AttrAngle2 = QStringLiteral("angle2");
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const QString VAbstractTool::AttrP1Line = QStringLiteral("p1Line");
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const QString VAbstractTool::AttrP2Line = QStringLiteral("p2Line");
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const QString VAbstractTool::AttrP1Line1 = QStringLiteral("p1Line1");
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const QString VAbstractTool::AttrP2Line1 = QStringLiteral("p2Line1");
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const QString VAbstractTool::AttrP1Line2 = QStringLiteral("p1Line2");
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const QString VAbstractTool::AttrP2Line2 = QStringLiteral("p2Line2");
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const QString VAbstractTool::AttrPShoulder = QStringLiteral("pShoulder");
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const QString VAbstractTool::AttrPoint1 = QStringLiteral("point1");
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const QString VAbstractTool::AttrPoint4 = QStringLiteral("point4");
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const QString VAbstractTool::AttrKAsm1 = QStringLiteral("kAsm1");
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const QString VAbstractTool::AttrKAsm2 = QStringLiteral("kAsm2");
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const QString VAbstractTool::AttrKCurve = QStringLiteral("kCurve");
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const QString VAbstractTool::AttrPathPoint = QStringLiteral("pathPoint");
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const QString VAbstractTool::AttrPSpline = QStringLiteral("pSpline");
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const QString VAbstractTool::AttrAxisP1 = QStringLiteral("axisP1");
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const QString VAbstractTool::AttrAxisP2 = QStringLiteral("axisP2");
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const QString VAbstractTool::TypeLineNone = QStringLiteral("none");
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const QString VAbstractTool::TypeLineLine = QStringLiteral("hair");
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VAbstractTool::VAbstractTool(VDomDocument *doc, VContainer *data, qint64 id, QObject *parent)
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:VDataTool(data, parent), doc(doc), id(id), baseColor(Qt::black), currentColor(Qt::black)
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{
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connect(this, &VAbstractTool::toolhaveChange, this->doc, &VDomDocument::haveLiteChange);
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connect(this->doc, &VDomDocument::FullUpdateFromFile, this, &VAbstractTool::FullUpdateFromFile);
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connect(this, &VAbstractTool::FullUpdateTree, this->doc, &VDomDocument::FullUpdateTree);
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}
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QPointF VAbstractTool::LineIntersectRect(QRectF rec, QLineF line)
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{
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qreal x1, y1, x2, y2;
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rec.getCoords(&x1, &y1, &x2, &y2);
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QPointF point;
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QLineF::IntersectType type = line.intersect(QLineF(QPointF(x1, y1), QPointF(x1, y2)), &point);
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if ( type == QLineF::BoundedIntersection )
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{
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return point;
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}
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type = line.intersect(QLineF(QPointF(x1, y1), QPointF(x2, y1)), &point);
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if ( type == QLineF::BoundedIntersection )
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{
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return point;
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}
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type = line.intersect(QLineF(QPointF(x1, y2), QPointF(x2, y2)), &point);
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if ( type == QLineF::BoundedIntersection )
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{
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return point;
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}
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type = line.intersect(QLineF(QPointF(x2, y1), QPointF(x2, y2)), &point);
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if ( type == QLineF::BoundedIntersection )
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{
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return point;
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}
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Q_ASSERT_X(type != QLineF::BoundedIntersection, Q_FUNC_INFO, "There is no point of intersection.");
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return point;
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}
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qint32 VAbstractTool::LineIntersectCircle(QPointF center, qreal radius, QLineF line, QPointF &p1, QPointF &p2)
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{
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const qreal eps = 1e-8;
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//коефіцієнти для рівняння відрізку
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qreal a = 0, b = 0, c = 0;
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LineCoefficients(line, &a, &b, &c);
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// проекция центра окружности на прямую
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QPointF p = ClosestPoint (line, center);
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// сколько всего решений?
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qint32 flag = 0;
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qreal d = QLineF (center, p).length();
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if (qAbs (d - radius) <= eps)
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{
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flag = 1;
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}
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else
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{
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if (radius > d)
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{
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flag = 2;
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}
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else
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{
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return 0;
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}
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}
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// находим расстояние от проекции до точек пересечения
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qreal k = sqrt (radius * radius - d * d);
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qreal t = QLineF (QPointF (0, 0), QPointF (b, - a)).length();
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// добавляем к проекции векторы направленные к точкам пеерсечения
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p1 = addVector (p, QPointF (0, 0), QPointF (- b, a), k / t);
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p2 = addVector (p, QPointF (0, 0), QPointF (b, - a), k / t);
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return flag;
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}
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QPointF VAbstractTool::ClosestPoint(QLineF line, QPointF p)
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{
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QLineF lineP2pointFrom = QLineF(line.p2(), p);
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qreal angle = 180-line.angleTo(lineP2pointFrom)-90;
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QLineF pointFromlineP2 = QLineF(p, line.p2());
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pointFromlineP2.setAngle(pointFromlineP2.angle()+angle);
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QPointF point;
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QLineF::IntersectType type = pointFromlineP2.intersect(line, &point);
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if ( type == QLineF::BoundedIntersection )
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{
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return point;
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}
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else
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{
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if ( type == QLineF::NoIntersection || type == QLineF::UnboundedIntersection )
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{
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Q_ASSERT_X(type != QLineF::BoundedIntersection, Q_FUNC_INFO, "Немає точки перетину.");
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return point;
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}
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}
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return point;
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}
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QPointF VAbstractTool::addVector(QPointF p, QPointF p1, QPointF p2, qreal k)
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{
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return QPointF (p.x() + (p2.x() - p1.x()) * k, p.y() + (p2.y() - p1.y()) * k);
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}
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void VAbstractTool::RemoveAllChild(QDomElement &domElement)
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{
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if ( domElement.hasChildNodes() )
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{
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while ( domElement.childNodes().length() >= 1 )
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{
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domElement.removeChild( domElement.firstChild() );
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}
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}
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}
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void VAbstractTool::LineCoefficients(const QLineF &line, qreal *a, qreal *b, qreal *c)
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{
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//коефіцієнти для рівняння відрізку
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*a = line.p2().y() - line.p1().y();
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*b = line.p1().x() - line.p2().x();
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*c = - *a * line.p1().x() - *b * line.p1().y();
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}
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