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// ************************************************************************** //
//
// BornAgain: simulate and fit scattering at grazing incidence
//
//! @file GUI/coregui/Views/SampleDesigner/NodeEditor.h
//! @brief Defines class NodeEditor
//!
//! @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)
//
// ************************************************************************** //
#ifndef BORNAGAIN_GUI_COREGUI_VIEWS_SAMPLEDESIGNER_NODEEDITOR_H
#define BORNAGAIN_GUI_COREGUI_VIEWS_SAMPLEDESIGNER_NODEEDITOR_H
/*
* Node editor: original code is taken from
* http://algoholic.eu/qnodeseditor-qt-nodesports-based-data-processing-flow-editor/
* Copyright (c) 2012, STANISLAW ADASZEWSKI
*/
#include <QObject>
class QGraphicsScene;
class NodeEditorConnection;
class QGraphicsItem;
class QPointF;
class QGraphicsSceneMouseEvent;
//! The NodeEditor class implement for QGraphicsScene an editable schematic
//! of the dependency graph, displaying nodes and the connections between their
//! attributes
class NodeEditor : public QObject
{
Q_OBJECT
public:
explicit NodeEditor(QObject* parent = 0);
void install(QGraphicsScene* scene);
bool eventFilter(QObject* object, QEvent* event);
signals:
void selectionModeChangeRequest(int);
void connectionIsEstablished(NodeEditorConnection*);
private:
QGraphicsItem* itemAt(const QPointF&);
private:
bool processMousePress(QGraphicsSceneMouseEvent* event);
bool processMouseMove(QGraphicsSceneMouseEvent* event);
bool processMouseRelease(QGraphicsSceneMouseEvent* event);
QGraphicsScene* m_scene;
NodeEditorConnection* m_conn;
};
#endif // BORNAGAIN_GUI_COREGUI_VIEWS_SAMPLEDESIGNER_NODEEDITOR_H
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