valentina/src/app/visualization/vistoolpointfromarcandtangent.cpp
Roman Telezhynskyi 717e95e672 New tool point from arc and tangent.
--HG--
branch : develop
2015-06-06 09:33:19 +03:00

146 lines
5.3 KiB
C++

/************************************************************************
**
** @file vistoolpointfromarcandtangent.cpp
** @author Roman Telezhynskyi <dismine(at)gmail.com>
** @date 6 6, 2015
**
** @brief
** @copyright
** This source code is part of the Valentine project, a pattern making
** program, whose allow create and modeling patterns of clothing.
** Copyright (C) 2015 Valentina project
** <https://bitbucket.org/dismine/valentina> All Rights Reserved.
**
** Valentina is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** Valentina is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with Valentina. If not, see <http://www.gnu.org/licenses/>.
**
*************************************************************************/
#include "vistoolpointfromarcandtangent.h"
#include "../container/vcontainer.h"
#include "../tools/drawTools/vtoolpointfromarcandtangent.h"
#include "../libs/vgeometry/vpointf.h"
#include "../libs/vgeometry/varc.h"
//---------------------------------------------------------------------------------------------------------------------
VisToolPointFromArcAndTangent::VisToolPointFromArcAndTangent(const VContainer *data, QGraphicsItem *parent)
: VisLine(data, parent), arcId(NULL_ID), crossPoint(CrossCirclesPoint::FirstPoint),
point(nullptr), tangent(nullptr), arcPath(nullptr), tangentLine2(nullptr)
{
arcPath = InitItem<QGraphicsPathItem>(Qt::darkGreen, this);
point = InitPoint(mainColor, this);
tangent = InitPoint(supportColor, this);
tangentLine2 = InitItem<QGraphicsLineItem>(supportColor, this);
}
//---------------------------------------------------------------------------------------------------------------------
VisToolPointFromArcAndTangent::~VisToolPointFromArcAndTangent()
{}
//---------------------------------------------------------------------------------------------------------------------
void VisToolPointFromArcAndTangent::RefreshGeometry()
{
if (point1Id > NULL_ID)// tangent point
{
const QSharedPointer<VPointF> tan = Visualization::data->GeometricObject<VPointF>(point1Id);
DrawPoint(tangent, tan->toQPointF(), supportColor);
if (arcId > NULL_ID)// circle center
{
const QSharedPointer<VArc> arc = Visualization::data->GeometricObject<VArc>(arcId);
DrawPath(arcPath, arc->GetPath(PathDirection::Show), Qt::darkGreen, Qt::SolidLine, Qt::RoundCap);
FindRays(tan->toQPointF(), arc.data());
const QPointF fPoint = VToolPointFromArcAndTangent::FindPoint(tan->toQPointF(), arc.data(), crossPoint);
DrawPoint(point, fPoint, mainColor);
}
}
}
//---------------------------------------------------------------------------------------------------------------------
void VisToolPointFromArcAndTangent::setArcId(const quint32 &value)
{
arcId = value;
}
//---------------------------------------------------------------------------------------------------------------------
void VisToolPointFromArcAndTangent::setCrossPoint(const CrossCirclesPoint &value)
{
crossPoint = value;
}
//---------------------------------------------------------------------------------------------------------------------
void VisToolPointFromArcAndTangent::FindRays(const QPointF &p, const VArc *arc)
{
QPointF p1, p2;
const QPointF center = arc->GetCenter().toQPointF();
const qreal radius = arc->GetRadius();
const int res = VGObject::ContactPoints (p, center, radius, p1, p2);
QLineF r1Arc(center, p1);
r1Arc.setLength(radius+10);
QLineF r2Arc(center, p2);
r2Arc.setLength(radius+10);
switch(res)
{
case 2:
{
int localRes = 0;
bool flagP1 = false;
if (arc->IsIntersectLine(r1Arc))
{
++localRes;
flagP1 = true;
}
if (arc->IsIntersectLine(r2Arc))
{
++localRes;
}
switch(localRes)
{
case 2:
DrawRay(this, p, p1, supportColor, Qt::DashLine);
DrawRay(tangentLine2, p, p2, supportColor, Qt::DashLine);
break;
case 1:
DrawRay(this, p, p1, supportColor, Qt::DashLine);
tangentLine2->setVisible(false);
break;
case 0:
default:
this->setVisible(false);
tangentLine2->setVisible(false);
break;
}
break;
}
case 1:
DrawRay(this, p, p1, supportColor, Qt::DashLine);
tangentLine2->setVisible(false);
break;
case 3:
case 0:
default:
this->setVisible(false);
tangentLine2->setVisible(false);
break;
}
}