valentina/src/libs/vwidgets/vsimplecurve.cpp

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/************************************************************************
**
** @file vsimplecurve.cpp
** @author Roman Telezhynskyi <dismine(at)gmail.com>
** @date 7 5, 2016
**
** @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) 2016 Valentina project
** <https://gitlab.com/smart-pattern/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 "vsimplecurve.h"
#include <QBrush>
#include <QFlags>
#include <QGraphicsScene>
#include <QGraphicsSceneMouseEvent>
#include <QKeyEvent>
#include <QMessageLogger>
#include <QPainterPath>
#include <QPen>
#include <Qt>
#include <QtDebug>
#include "global.h"
#include "../vgeometry/vabstractcurve.h"
#include "../vmisc/vabstractapplication.h"
template <class T> class QSharedPointer;
//---------------------------------------------------------------------------------------------------------------------
VSimpleCurve::VSimpleCurve(quint32 id, const QSharedPointer<VAbstractCurve> &curve, QObject *parent)
: VAbstractSimple(id, parent),
VCurvePathItem(),
m_curve(curve),
m_isHovered(false)
{
this->setBrush(QBrush(Qt::NoBrush));
this->setAcceptHoverEvents(true);
this->setFlag(QGraphicsItem::ItemIsFocusable, true);// For keyboard input focus
}
//---------------------------------------------------------------------------------------------------------------------
void VSimpleCurve::RefreshGeometry(const QSharedPointer<VAbstractCurve> &curve)
{
m_curve = curve;
if (not m_curve.isNull())
{
m_isHovered ? SetDirectionArrows(m_curve->DirectionArrows()) : SetDirectionArrows(QVector<DirectionArrow>());
setPath(m_curve->GetPath());
SetPoints(m_curve->GetPoints());
}
else
{
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qWarning() << "VSimpleCurve::RefreshGeometry: pointer to curve is null.";
}
}
//---------------------------------------------------------------------------------------------------------------------
void VSimpleCurve::CurveChoosed()
{
emit Choosed(id);
}
//---------------------------------------------------------------------------------------------------------------------
void VSimpleCurve::CurveSelected(bool selected)
{
emit Selected(selected, id);
}
//---------------------------------------------------------------------------------------------------------------------
void VSimpleCurve::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
// Special for not selectable item first need to call standard mousePressEvent then accept event
QGraphicsPathItem::mousePressEvent(event);
// Somehow clicking on notselectable object do not clean previous selections.
if (not (flags() & ItemIsSelectable) && scene())
{
scene()->clearSelection();
}
if (selectionType == SelectionType::ByMouseRelease)
{
event->accept();// Special for not selectable item first need to call standard mousePressEvent then accept event
}
else
{
if (event->button() == Qt::LeftButton && event->type() != QEvent::GraphicsSceneMouseDoubleClick)
{
emit Choosed(id);
event->accept();
}
}
}
//---------------------------------------------------------------------------------------------------------------------
void VSimpleCurve::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
if (selectionType == SelectionType::ByMouseRelease && IsSelectedByReleaseEvent(this, event))
{
emit Choosed(id);
}
QGraphicsPathItem::mouseReleaseEvent(event);
}
//---------------------------------------------------------------------------------------------------------------------
void VSimpleCurve::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
{
m_isHovered = true;
if (not m_curve.isNull())
{
SetDirectionArrows(m_curve->DirectionArrows());
}
QGraphicsPathItem::hoverEnterEvent(event);
}
//---------------------------------------------------------------------------------------------------------------------
void VSimpleCurve::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
{
m_isHovered = false;
SetDirectionArrows(QVector<DirectionArrow>());
QGraphicsPathItem::hoverLeaveEvent(event);
}
//---------------------------------------------------------------------------------------------------------------------
QVariant VSimpleCurve::itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value)
{
if (change == QGraphicsItem::ItemSelectedHasChanged)
{
emit Selected(value.toBool(), id);
}
return QGraphicsPathItem::itemChange(change, value);
}
//---------------------------------------------------------------------------------------------------------------------
void VSimpleCurve::contextMenuEvent(QGraphicsSceneContextMenuEvent *event)
{
emit ShowContextMenu(event, id);
}
//---------------------------------------------------------------------------------------------------------------------
void VSimpleCurve::keyReleaseEvent(QKeyEvent *event)
{
switch (event->key())
{
case Qt::Key_Delete:
emit Delete();
return; //Leave this method immediately after call!!!
default:
break;
}
QGraphicsPathItem::keyReleaseEvent ( event );
}
//---------------------------------------------------------------------------------------------------------------------
void VSimpleCurve::ScalePenWidth()
{
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qreal width = m_isHovered ? VAbstractApplication::VApp()->Settings()->WidthMainLine()
: VAbstractApplication::VApp()->Settings()->WidthHairLine();
width = ScaleWidth(width, SceneScale(scene()));
setPen(QPen(CorrectColor(this, m_curve->GetColor()), width, LineStyleToPenStyle(m_curve->GetPenStyle())));
}