146 lines
5.3 KiB
C++
146 lines
5.3 KiB
C++
/************************************************************************
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**
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** @file vistoolpointfromarcandtangent.cpp
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** @author Roman Telezhynskyi <dismine(at)gmail.com>
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** @date 6 6, 2015
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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 Valentine project, a pattern making
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** program, whose allow create and modeling patterns of clothing.
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** Copyright (C) 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 "vistoolpointfromarcandtangent.h"
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#include "../container/vcontainer.h"
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#include "../tools/drawTools/vtoolpointfromarcandtangent.h"
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#include "../libs/vgeometry/vpointf.h"
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#include "../libs/vgeometry/varc.h"
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//---------------------------------------------------------------------------------------------------------------------
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VisToolPointFromArcAndTangent::VisToolPointFromArcAndTangent(const VContainer *data, QGraphicsItem *parent)
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: VisLine(data, parent), arcId(NULL_ID), crossPoint(CrossCirclesPoint::FirstPoint),
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point(nullptr), tangent(nullptr), arcPath(nullptr), tangentLine2(nullptr)
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{
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arcPath = InitItem<QGraphicsPathItem>(Qt::darkGreen, this);
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point = InitPoint(mainColor, this);
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tangent = InitPoint(supportColor, this);
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tangentLine2 = InitItem<QGraphicsLineItem>(supportColor, this);
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}
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//---------------------------------------------------------------------------------------------------------------------
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VisToolPointFromArcAndTangent::~VisToolPointFromArcAndTangent()
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{}
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//---------------------------------------------------------------------------------------------------------------------
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void VisToolPointFromArcAndTangent::RefreshGeometry()
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{
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if (point1Id > NULL_ID)// tangent point
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{
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const QSharedPointer<VPointF> tan = Visualization::data->GeometricObject<VPointF>(point1Id);
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DrawPoint(tangent, tan->toQPointF(), supportColor);
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if (arcId > NULL_ID)// circle center
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{
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const QSharedPointer<VArc> arc = Visualization::data->GeometricObject<VArc>(arcId);
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DrawPath(arcPath, arc->GetPath(PathDirection::Show), Qt::darkGreen, Qt::SolidLine, Qt::RoundCap);
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FindRays(tan->toQPointF(), arc.data());
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const QPointF fPoint = VToolPointFromArcAndTangent::FindPoint(tan->toQPointF(), arc.data(), crossPoint);
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DrawPoint(point, fPoint, mainColor);
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}
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}
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VisToolPointFromArcAndTangent::setArcId(const quint32 &value)
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{
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arcId = value;
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VisToolPointFromArcAndTangent::setCrossPoint(const CrossCirclesPoint &value)
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{
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crossPoint = value;
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VisToolPointFromArcAndTangent::FindRays(const QPointF &p, const VArc *arc)
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{
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QPointF p1, p2;
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const QPointF center = arc->GetCenter().toQPointF();
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const qreal radius = arc->GetRadius();
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const int res = VGObject::ContactPoints (p, center, radius, p1, p2);
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QLineF r1Arc(center, p1);
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r1Arc.setLength(radius+10);
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QLineF r2Arc(center, p2);
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r2Arc.setLength(radius+10);
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switch(res)
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{
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case 2:
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{
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int localRes = 0;
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bool flagP1 = false;
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if (arc->IsIntersectLine(r1Arc))
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{
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++localRes;
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flagP1 = true;
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}
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if (arc->IsIntersectLine(r2Arc))
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{
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++localRes;
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}
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switch(localRes)
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{
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case 2:
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DrawRay(this, p, p1, supportColor, Qt::DashLine);
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DrawRay(tangentLine2, p, p2, supportColor, Qt::DashLine);
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break;
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case 1:
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DrawRay(this, p, p1, supportColor, Qt::DashLine);
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tangentLine2->setVisible(false);
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break;
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case 0:
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default:
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this->setVisible(false);
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tangentLine2->setVisible(false);
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break;
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}
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break;
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}
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case 1:
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DrawRay(this, p, p1, supportColor, Qt::DashLine);
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tangentLine2->setVisible(false);
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break;
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case 3:
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case 0:
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default:
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this->setVisible(false);
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tangentLine2->setVisible(false);
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break;
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}
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}
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