valentina/src/libs/vlayout/vabstractdetail.cpp

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/************************************************************************
**
** @file vabstractdetail.cpp
** @author Roman Telezhynskyi <dismine(at)gmail.com>
** @date 2 1, 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 "vabstractdetail.h"
#include "vabstractdetail_p.h"
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#include <QVector>
#include <QPointF>
#include <QLineF>
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief VAbstractDetail default contructor. Create empty detail.
*/
VAbstractDetail::VAbstractDetail()
:d(new VAbstractDetailData)
{}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief VAbstractDetail constructor.
* @param name detail name.
*/
VAbstractDetail::VAbstractDetail(const QString &name)
:d(new VAbstractDetailData(name))
{}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief VAbstractDetail copy constructor.
* @param detail detail.
*/
VAbstractDetail::VAbstractDetail(const VAbstractDetail &detail)
:d (detail.d)
{}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief operator = assignment operator.
* @param detail detail.
* @return new detail.
*/
VAbstractDetail &VAbstractDetail::operator=(const VAbstractDetail &detail)
{
if ( &detail == this )
{
return *this;
}
d = detail.d;
return *this;
}
//---------------------------------------------------------------------------------------------------------------------
VAbstractDetail::~VAbstractDetail()
{}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief Clear detail full clear.
*/
void VAbstractDetail::Clear()
{
d->name.clear();
d->seamAllowance = false;
d->closed = true;
d->width = 0;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief getName return detail name.
* @return name.
*/
QString VAbstractDetail::getName() const
{
return d->name;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief setName set detail name.
* @param value new name.
*/
void VAbstractDetail::setName(const QString &value)
{
d->name = value;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief getSeamAllowance keep status for seam allowance detail.
* @return true - need seam allowance, false - no need seam allowance.
*/
bool VAbstractDetail::getSeamAllowance() const
{
return d->seamAllowance;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief setSeamAllowance set status for seam allowance detail.
* @param value true - need seam allowance, false - no need seam allowance.
*/
void VAbstractDetail::setSeamAllowance(bool value)
{
d->seamAllowance = value;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief getClosed keep close status for detail equdistant.
* @return true - close equdistant, false - don't close equdistant.
*/
bool VAbstractDetail::getClosed() const
{
return d->closed;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief setClosed set close status for detail equdistant.
* @param value true - close equdistant, false - don't close equdistant.
*/
void VAbstractDetail::setClosed(bool value)
{
d->closed = value;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief getWidth return value detail seam allowance.
* @return value in mm.
*/
qreal VAbstractDetail::getWidth() const
{
return d->width;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief setWidth set value detail seam allowance.
* @param value width in mm.
*/
void VAbstractDetail::setWidth(const qreal &value)
{
d->width = value;
}
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//---------------------------------------------------------------------------------------------------------------------
QVector<QPointF> VAbstractDetail::Equidistant(const QVector<QPointF> &points, const EquidistantType &eqv, qreal width)
{
QVector<QPointF> ekvPoints;
if (width <= 0)
{
qDebug()<<"Width <= 0.";
return QVector<QPointF>();
}
QVector<QPointF> p = CorrectEquidistantPoints(points);
if ( p.size() < 3 )
{
qDebug()<<"Not enough points for building the equidistant.";
return QVector<QPointF>();
}
if (eqv == EquidistantType::CloseEquidistant)
{
p.append(points.at(0));
}
for (qint32 i = 0; i < points.size(); ++i )
{
if ( i == 0 && eqv == EquidistantType::CloseEquidistant)
{//first point, polyline closed
ekvPoints<<EkvPoint(QLineF(points.at(points.size()-2), points.at(points.size()-1)),
QLineF(points.at(1), points.at(0)), width);
continue;
}
else if (i == 0 && eqv == EquidistantType::OpenEquidistant)
{//first point, polyline doesn't closed
ekvPoints.append(SingleParallelPoint(QLineF(points.at(0), points.at(1)), 90, width));
continue;
}
if (i == points.size()-1 && eqv == EquidistantType::CloseEquidistant)
{//last point, polyline closed
ekvPoints.append(ekvPoints.at(0));
continue;
}
else if (i == points.size()-1 && eqv == EquidistantType::OpenEquidistant)
{//last point, polyline doesn't closed
ekvPoints.append(SingleParallelPoint(QLineF(points.at(points.size()-1), points.at(points.size()-2)),
-90, width));
continue;
}
//points in the middle of polyline
ekvPoints<<EkvPoint(QLineF(points.at(i-1), points.at(i)), QLineF(points.at(i+1), points.at(i)), width);
}
return ekvPoints;
}
//---------------------------------------------------------------------------------------------------------------------
QVector<QPointF> VAbstractDetail::RemoveDublicates(const QVector<QPointF> &points)
{
QVector<QPointF> p = points;
for(int i = 0; i < p.size(); i++)
{
QPointF current = p.at(i);
for(int j = i; j < p.size(); j++)
{
if(j == i)
{
continue;
}
else
{
QPointF temp = p.at(j);
if(current == temp)
{
QVector<QPointF>::iterator iter = p.begin() + j;
p.erase(iter);
j--;
}
}
}
}
return p;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief CorrectEquidistantPoints clear equivalent points and remove point on line from equdistant.
* @param points list of points equdistant.
* @return corrected list.
*/
QVector<QPointF> VAbstractDetail::CorrectEquidistantPoints(const QVector<QPointF> &points)
{
QVector<QPointF> correctPoints;
if (points.size()<4)//Better don't check if only three points. We can destroy equidistant.
{
qDebug()<<"Only three points.";
return points;
}
//Clear equivalent points
correctPoints = RemoveDublicates(points);
if (correctPoints.size()<3)
{
return correctPoints;
}
//Remove point on line
QPointF point;
for (qint32 i = 1; i <correctPoints.size()-1; ++i)
{
QLineF l1(correctPoints.at(i-1), correctPoints.at(i));
QLineF l2(correctPoints.at(i), correctPoints.at(i+1));
QLineF::IntersectType intersect = l1.intersect(l2, &point);
if (intersect == QLineF::NoIntersection)
{
correctPoints.remove(i);
}
}
correctPoints = CheckLoops(correctPoints);
return correctPoints;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief CheckLoops seek and delete loops in equidistant.
* @param points vector of points of equidistant.
* @return vector of points of equidistant.
*/
QVector<QPointF> VAbstractDetail::CheckLoops(const QVector<QPointF> &points)
{
QVector<QPointF> ekvPoints;
/*If we got less than 4 points no need seek loops.*/
if (points.size() < 4)
{
qDebug()<<"Less then 4 points. Doesn't need check for loops.";
return points;
}
bool closed = false;
if (points.at(0) == points.at(points.size()-1))
{
closed = true;
}
qint32 i, j;
for (i = 0; i < points.size(); ++i)
{
/*Last three points no need check.*/
if (i >= points.size()-3)
{
ekvPoints.append(points.at(i));
continue;
}
QPointF crosPoint;
QLineF::IntersectType intersect = QLineF::NoIntersection;
QLineF line1(points.at(i), points.at(i+1));
for (j = i+2; j < points.size()-1; ++j)
{
QLineF line2(points.at(j), points.at(j+1));
intersect = line1.intersect(line2, &crosPoint);
if (intersect == QLineF::BoundedIntersection)
{
break;
}
}
if (intersect == QLineF::BoundedIntersection)
{
if (i == 0 && j+1 == points.size()-1 && closed)
{
/*We got closed contour.*/
ekvPoints.append(points.at(i));
}
else
{
/*We found loop.*/
ekvPoints.append(points.at(i));
ekvPoints.append(crosPoint);
i = j;
}
}
else
{
/*We did not found loop.*/
ekvPoints.append(points.at(i));
}
}
return ekvPoints;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief EkvPoint return vector of points of equidistant two lines. Last point of two lines must be equal.
* @param line1 first line.
* @param line2 second line.
* @param width width of equidistant.
* @return vector of points.
*/
QVector<QPointF> VAbstractDetail::EkvPoint(const QLineF &line1, const QLineF &line2, const qreal &width)
{
if (width <= 0)
{
return QVector<QPointF>();
}
QVector<QPointF> points;
if (line1.p2() != line2.p2())
{
qDebug()<<"Last points of two lines must be equal.";
return QVector<QPointF>();
}
QPointF CrosPoint;
QLineF bigLine1 = ParallelLine(line1, width );
QLineF bigLine2 = ParallelLine(QLineF(line2.p2(), line2.p1()), width );
QLineF::IntersectType type = bigLine1.intersect( bigLine2, &CrosPoint );
switch (type)
{
case (QLineF::BoundedIntersection):
points.append(CrosPoint);
return points;
break;
case (QLineF::UnboundedIntersection):
{
QLineF line( line1.p2(), CrosPoint );
const qreal length = line.length();
if (length > width*2.4)
{ // Cutting too long an acute angle
line.setLength(width); // Not sure about width value here
QLineF cutLine(line.p2(), CrosPoint); // Cut line is a perpendicular
cutLine.setLength(length); // Decided take this length
// We do not check intersection type because intersection must alwayse exist
QPointF px;
cutLine.setAngle(cutLine.angle()+90);
QLineF::IntersectType type = bigLine1.intersect( cutLine, &px );
if (type == QLineF::NoIntersection)
{
qDebug()<<"Couldn't find intersection with cut line.";
}
points.append(px);
cutLine.setAngle(cutLine.angle()-180);
type = bigLine2.intersect( cutLine, &px );
if (type == QLineF::NoIntersection)
{
qDebug()<<"Couldn't find intersection with cut line.";
}
points.append(px);
}
else
{
points.append(CrosPoint);
return points;
}
break;
}
case (QLineF::NoIntersection):
/*If we have correct lines this means lines lie on a line.*/
points.append(bigLine1.p2());
return points;
break;
default:
break;
}
return points;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief ParallelLine create parallel line.
* @param line starting line.
* @param width width to parallel line.
* @return parallel line.
*/
QLineF VAbstractDetail::ParallelLine(const QLineF &line, qreal width)
{
QLineF paralel = QLineF (SingleParallelPoint(line, 90, width), SingleParallelPoint(QLineF(line.p2(), line.p1()),
-90, width));
return paralel;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief SingleParallelPoint return point of parallel line.
* @param line starting line.
* @param angle angle in degree.
* @param width width to parallel line.
* @return point of parallel line.
*/
QPointF VAbstractDetail::SingleParallelPoint(const QLineF &line, const qreal &angle, const qreal &width)
{
QLineF pLine = line;
pLine.setAngle( pLine.angle() + angle );
pLine.setLength( width );
return pLine.p2();
}