valentina/src/libs/vwidgets/vcurvepathitem.cpp

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/************************************************************************
**
** @file
** @author Roman Telezhynskyi <dismine(at)gmail.com>
** @date 16 5, 2017
**
** @brief
** @copyright
** This source code is part of the Valentina project, a pattern making
** program, whose allow create and modeling patterns of clothing.
** Copyright (C) 2017 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 "vcurvepathitem.h"
#include "../vwidgets/global.h"
#include "../vgeometry/vabstractcurve.h"
#include <QPainter>
//---------------------------------------------------------------------------------------------------------------------
VCurvePathItem::VCurvePathItem(QGraphicsItem *parent)
: QGraphicsPathItem(parent),
m_directionArrows(),
m_points(),
m_defaultWidth(widthMainLine)
{
}
//---------------------------------------------------------------------------------------------------------------------
QPainterPath VCurvePathItem::shape() const
{
QPainterPath itemPath;
if (not m_points.isEmpty())
{
for (qint32 i = 0; i < m_points.count()-1; ++i)
{
itemPath.moveTo(m_points.at(i));
itemPath.lineTo(m_points.at(i+1));
}
}
else
{
itemPath = path();
}
const QPainterPath arrowsPath = VAbstractCurve::ShowDirection(m_directionArrows,
ScaleWidth(VAbstractCurve::lengthCurveDirectionArrow,
SceneScale(scene())));
if (arrowsPath != QPainterPath())
{
itemPath.addPath(arrowsPath);
}
itemPath.setFillRule(Qt::WindingFill);
return ItemShapeFromPath(itemPath, pen());
}
//---------------------------------------------------------------------------------------------------------------------
void VCurvePathItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
ScalePenWidth();
const QPainterPath arrowsPath = VAbstractCurve::ShowDirection(m_directionArrows,
ScaleWidth(VAbstractCurve::lengthCurveDirectionArrow,
SceneScale(scene())));
if (arrowsPath != QPainterPath())
{
painter->save();
QPen arrowPen(pen());
arrowPen.setStyle(Qt::SolidLine);
painter->setPen(arrowPen);
painter->setBrush(brush());
painter->drawPath(arrowsPath);
painter->restore();
}
QGraphicsPathItem::paint(painter, option, widget);
}
//---------------------------------------------------------------------------------------------------------------------
void VCurvePathItem::SetDirectionArrows(const QVector<QPair<QLineF, QLineF> > &arrows)
{
m_directionArrows = arrows;
}
//---------------------------------------------------------------------------------------------------------------------
void VCurvePathItem::SetPoints(const QVector<QPointF> &points)
{
m_points = points;
}
//---------------------------------------------------------------------------------------------------------------------
void VCurvePathItem::SetWidth(qreal width)
{
m_defaultWidth = width;
}
//---------------------------------------------------------------------------------------------------------------------
void VCurvePathItem::ScalePenWidth()
{
const qreal width = ScaleWidth(m_defaultWidth, SceneScale(scene()));
QPen toolPen = pen();
toolPen.setWidthF(width);
setPen(toolPen);
}