mirror of
https://gitlab.com/smart-pattern/valentina.git
synced 2024-09-19 23:34:04 +02:00
120 lines
4 KiB
C++
120 lines
4 KiB
C++
/************************************************************************
|
|
**
|
|
** @file vabstractcurve.cpp
|
|
** @author Roman Telezhynskyi <dismine(at)gmail.com>
|
|
** @date 25 6, 2014
|
|
**
|
|
** @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) 2014 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 "vabstractcurve.h"
|
|
|
|
#include <QPainterPath>
|
|
#include <QtMath>
|
|
|
|
VAbstractCurve::VAbstractCurve(const GOType &type, const quint32 &idObject, const Draw &mode)
|
|
:VGObject(type, idObject, mode)
|
|
{}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
VAbstractCurve::VAbstractCurve(const VAbstractCurve &curve)
|
|
:VGObject(curve)
|
|
{}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
VAbstractCurve &VAbstractCurve::operator=(const VAbstractCurve &curve)
|
|
{
|
|
if ( &curve == this )
|
|
{
|
|
return *this;
|
|
}
|
|
VGObject::operator=(curve);
|
|
return *this;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
QPainterPath VAbstractCurve::GetPath(PathDirection direction) const
|
|
{
|
|
QPainterPath path;
|
|
|
|
QVector<QPointF> points = GetPoints();
|
|
if (points.count() >= 2)
|
|
{
|
|
for (qint32 i = 0; i < points.count()-1; ++i)
|
|
{
|
|
path.moveTo(points.at(i));
|
|
path.lineTo(points.at(i+1));
|
|
}
|
|
|
|
if (direction == PathDirection::Show && points.count() >= 3)
|
|
{
|
|
path.addPath(ShowDirection(points));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
qDebug()<<"points.count() < 2"<<Q_FUNC_INFO;
|
|
}
|
|
return path;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
QPainterPath VAbstractCurve::ShowDirection(const QVector<QPointF> &points) const
|
|
{
|
|
QPainterPath path;
|
|
|
|
if (points.count() >= 2)
|
|
{
|
|
/*Need find coordinate midle of curve.
|
|
Universal way is take all points and find sum.*/
|
|
const qreal seek_length = GetLength()/2.0;
|
|
qreal found_length = 0;
|
|
QLineF arrow;
|
|
for (qint32 i = 1; i <= points.size()-1; ++i)
|
|
{
|
|
arrow = QLineF(points.at(i-1), points.at(i));
|
|
found_length += arrow.length();//Length that we aready find
|
|
|
|
if (seek_length <= found_length)// if have found more that need stop.
|
|
{
|
|
//subtract length in last line and you will find position of the middle point.
|
|
arrow.setLength(arrow.length() - (found_length - seek_length));
|
|
break;
|
|
}
|
|
}
|
|
|
|
//Reverse line because we want start arrow from this point
|
|
arrow = QLineF(arrow.p2(), arrow.p1());
|
|
const qreal angle = arrow.angle();//we each time change line angle, better save original angle value
|
|
arrow.setLength(14);//arrow length in pixels
|
|
|
|
arrow.setAngle(angle-35);
|
|
path.moveTo(arrow.p1());
|
|
path.lineTo(arrow.p2());
|
|
|
|
arrow.setAngle(angle+35);
|
|
path.moveTo(arrow.p1());
|
|
path.lineTo(arrow.p2());
|
|
}
|
|
return path;
|
|
}
|