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// ************************************************************************** //
//
// BornAgain: simulate and fit scattering at grazing incidence
//
//! @file GUI/coregui/Views/SampleDesigner/NodeEditorPort.cpp
//! @brief Implements class NodeEditorPort
//!
//! @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/coregui/Views/SampleDesigner/NodeEditorPort.h"
#include "GUI/coregui/Views/SampleDesigner/DesignerHelper.h"
#include "GUI/coregui/Views/SampleDesigner/NodeEditorConnection.h"
#include "GUI/coregui/utils/StyleUtils.h"
#include <QGraphicsScene>
#include <QPainter>
#include <QPen>
NodeEditorPort::NodeEditorPort(QGraphicsItem* parent, const QString& name,
NodeEditorPort::EPortDirection direction,
NodeEditorPort::EPortType port_type)
: QGraphicsPathItem(parent), m_name(name), m_direction(direction), m_port_type(port_type),
m_radius(0), m_margin(0), m_label(nullptr)
{
m_radius = StyleUtils::SizeOfLetterM().width() * 0.4;
m_margin = m_radius * 0.5;
m_color = getPortTypeColor(port_type);
QPainterPath p;
p.addEllipse(-m_radius, -m_radius, 2 * m_radius, 2 * m_radius);
setPath(p);
setPen(QPen(m_color.darker(180)));
setBrush(m_color);
setFlag(QGraphicsItem::ItemSendsScenePositionChanges);
if (!m_name.isEmpty()) {
setLabel(m_name);
}
}
NodeEditorPort::~NodeEditorPort()
{
while (m_connections.size() > 0) {
auto conn = m_connections.last();
conn->setSelected(false);
delete conn;
}
}
bool NodeEditorPort::isOutput()
{
return (m_direction == OUTPUT);
}
bool NodeEditorPort::isInput()
{
return !isOutput();
}
void NodeEditorPort::remove(NodeEditorConnection* connection)
{
if (m_connections.contains(connection))
m_connections.remove(m_connections.indexOf(connection));
}
void NodeEditorPort::append(NodeEditorConnection* connection)
{
m_connections.append(connection);
}
bool NodeEditorPort::isConnected(NodeEditorPort* other)
{
for (auto conn : m_connections)
if (conn->port1() == other || conn->port2() == other)
return true;
return false;
}
QColor NodeEditorPort::getPortTypeColor(NodeEditorPort::EPortType port_type)
{
switch (port_type) {
case DEFAULT:
return QColor(Qt::gray);
case INTERFERENCE:
return QColor(Qt::yellow);
case PARTICLE_LAYOUT:
return QColor(Qt::green);
case FORM_FACTOR:
return QColor(Qt::blue);
case TRANSFORMATION:
return QColor(Qt::magenta);
default:
return QColor(Qt::red);
}
}
QVariant NodeEditorPort::itemChange(GraphicsItemChange change, const QVariant& value)
{
if (change == ItemScenePositionHasChanged) {
for (auto conn : m_connections) {
conn->updatePosFromPorts();
conn->updatePath();
}
}
return value;
}
void NodeEditorPort::setLabel(QString name)
{
if (!m_label)
m_label = new QGraphicsTextItem(this);
m_label->setPlainText(name);
QFont serifFont("Monospace", DesignerHelper::getPortFontSize(), QFont::Normal);
m_label->setFont(serifFont);
if (isOutput()) {
m_label->setPos(-m_radius - m_margin - m_label->boundingRect().width(),
-m_label->boundingRect().height() / 2);
} else {
m_label->setPos(m_radius + m_margin, -m_label->boundingRect().height() / 2);
}
}
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