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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file GUI/View/Overlay/VertexOverlay.cpp
//! @brief Implements class VertexOverlay.
//!
//! @homepage http://www.bornagainproject.org
//! @license GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
// ************************************************************************************************
#include "GUI/View/Overlay/VertexOverlay.h"
#include "GUI/Model/Mask/PointItem.h"
#include "GUI/View/Overlay/OverlayStyle.h"
#include "GUI/View/Plotter/ColorMap.h"
#include <QGraphicsSceneMouseEvent>
#include <QPainter>
VertexOverlay::VertexOverlay(PointItem* item, ColorMap* plot)
: IOverlay(plot)
, m_item(item)
, m_on_hover(false)
{
setFlag(QGraphicsItem::ItemIsMovable);
setFlag(QGraphicsItem::ItemSendsGeometryChanges);
}
QRectF VertexOverlay::boundingRect() const
{
return {-4, -4, 8, 8};
}
OverlayItem* VertexOverlay::parameterizedItem() const
{
return m_item;
}
void VertexOverlay::updateParameterizedItem(const QPointF& pos)
{
m_item->setPosX(x2coo(pos.x()));
m_item->setPosY(y2coo(pos.y()));
}
void VertexOverlay::update_view()
{
update();
}
void VertexOverlay::onPropertyChange()
{
emit propertyChanged();
}
void VertexOverlay::paint(QPainter* painter, const QStyleOptionGraphicsItem*, QWidget*)
{
painter->setRenderHints(QPainter::Antialiasing);
QBrush brush = GUI::Overlay::getSelectionMarkerBrush();
if (acceptHoverEvents() && m_on_hover)
brush.setColor(Qt::red);
painter->setBrush(brush);
painter->setPen(GUI::Overlay::getSelectionMarkerPen());
painter->drawEllipse(boundingRect());
}
void VertexOverlay::mouseMoveEvent(QGraphicsSceneMouseEvent* event)
{
updateParameterizedItem(event->scenePos());
onGeometryChange();
}
void VertexOverlay::hoverEnterEvent(QGraphicsSceneHoverEvent* event)
{
m_on_hover = true;
emit closePolygonRequest(m_on_hover);
IOverlay::hoverEnterEvent(event);
}
void VertexOverlay::hoverLeaveEvent(QGraphicsSceneHoverEvent* event)
{
m_on_hover = false;
emit closePolygonRequest(m_on_hover);
IOverlay::hoverLeaveEvent(event);
}
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