valentina/src/app/widgets/vcontrolpointspline.cpp

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/************************************************************************
**
** @file vcontrolpointspline.cpp
** @author Roman Telezhynskyi <dismine(at)gmail.com>
** @date November 15, 2013
**
** @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) 2013 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/>.
**
*************************************************************************/
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#include "vcontrolpointspline.h"
#include "../tools/vabstracttool.h"
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#include <QPen>
#include "../widgets/vapplication.h"
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VControlPointSpline::VControlPointSpline(const qint32 &indexSpline, SplinePoint::Position position,
const QPointF &controlPoint, const QPointF &splinePoint,
QGraphicsItem *parent)
:QGraphicsEllipseItem(parent), radius(qApp->toPixel(1.5)), controlLine(nullptr), indexSpline(indexSpline),
position(position)
{
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//create circle
QRectF rec = QRectF(0, 0, radius*2, radius*2);
rec.translate(-rec.center().x(), -rec.center().y());
this->setRect(rec);
this->setPen(QPen(Qt::black, qApp->toPixel(qApp->widthHairLine())));
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this->setBrush(QBrush(Qt::NoBrush));
this->setFlag(QGraphicsItem::ItemIsSelectable, true);
this->setFlag(QGraphicsItem::ItemIsMovable, true);
this->setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);
this->setAcceptHoverEvents(true);
this->setPos(controlPoint);
QPointF p1, p2;
VAbstractTool::LineIntersectCircle(QPointF(), radius, QLineF( QPointF(), splinePoint-controlPoint), p1, p2);
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controlLine = new QGraphicsLineItem(QLineF(splinePoint-controlPoint, p1), this);
controlLine->setPen(QPen(Qt::red, qApp->toPixel(qApp->widthHairLine())));
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controlLine->setFlag(QGraphicsItem::ItemStacksBehindParent, true);
}
void VControlPointSpline::hoverMoveEvent(QGraphicsSceneHoverEvent *event)
{
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Q_UNUSED(event);
this->setPen(QPen(Qt::black, qApp->toPixel(qApp->widthMainLine())));
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}
void VControlPointSpline::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
{
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Q_UNUSED(event);
this->setPen(QPen(Qt::black, qApp->toPixel(qApp->widthHairLine())));
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}
QVariant VControlPointSpline::itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value)
{
if (change == ItemPositionChange && scene())
{
// value - new position.
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QPointF newPos = value.toPointF();
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emit ControlPointChangePosition(indexSpline, position, newPos);
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}
return QGraphicsItem::itemChange(change, value);
}
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void VControlPointSpline::RefreshLine(const qint32 &indexSpline, SplinePoint::Position pos,
const QPointF &controlPoint, const QPointF &splinePoint)
{
if (this->indexSpline == indexSpline && this->position == pos)
{
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QPointF p1, p2;
VAbstractTool::LineIntersectCircle(QPointF(), radius, QLineF( QPointF(), splinePoint-controlPoint), p1, p2);
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controlLine->setLine(QLineF(splinePoint-controlPoint, p1));
}
}
void VControlPointSpline::setEnabledPoint(bool enable)
{
if (enable == true)
{
this->setPen(QPen(Qt::black, qApp->toPixel(qApp->widthHairLine())));
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this->setFlag(QGraphicsItem::ItemIsSelectable, true);
this->setFlag(QGraphicsItem::ItemIsMovable, true);
this->setAcceptHoverEvents(true);
}
else
{
this->setPen(QPen(Qt::gray, qApp->toPixel(qApp->widthHairLine())));
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this->setFlag(QGraphicsItem::ItemIsSelectable, false);
this->setFlag(QGraphicsItem::ItemIsMovable, false);
this->setAcceptHoverEvents(false);
}
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}