EditableEdgeItem.h

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#ifndef SIMPT_EDITOR_EDITABLE_EDGE_ITEM_H_INCLUDED
#define SIMPT_EDITOR_EDITABLE_EDGE_ITEM_H_INCLUDED
/*
 * Copyright 2011-2016 Universiteit Antwerpen
 *
 * Licensed under the EUPL, Version 1.1 or  as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at: http://ec.europa.eu/idabc/eupl5
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing
 * permissions and limitations under the Licence.
 */
#include "editor/EditableItem.h"
#include "bio/Edge.h"

#include <QGraphicsLineItem>
#include <QGraphicsScene>

namespace SimPT_Editor {

class EditableNodeItem;

class EditableEdgeItem : public EditableItem, public QGraphicsLineItem
{
        Q_OBJECT
public:
        EditableEdgeItem(EditableNodeItem* node1, EditableNodeItem* node2);

        virtual ~EditableEdgeItem();

        EditableNodeItem* First() const { return m_endpoint1; };

        EditableNodeItem* Second() const { return m_endpoint2; };

        virtual bool IsAtBoundary() const;

        bool ContainsEndpoint(EditableNodeItem* endpoint) const;

        bool ContainsEndpoints(EditableNodeItem* endpoint1, EditableNodeItem* endpoint2) const;

        EditableNodeItem* ConnectingNode(EditableEdgeItem* edge) const;

        SimPT_Sim::Edge Edge() const;

        virtual void Highlight(bool highlighted);

        virtual void SetHighlightColor(const QColor& color = DEFAULT_HIGHLIGHT_COLOR);

        EditableEdgeItem* MergeEdge(EditableEdgeItem* edge);

        std::pair<EditableEdgeItem*, EditableEdgeItem*> SplitEdge(EditableNodeItem* node);


signals:
        void EdgeSplitted(EditableEdgeItem* oldEdge, EditableEdgeItem* edge1, EditableEdgeItem* edge2);

        void EdgeMerged(EditableEdgeItem* oldEdge1, EditableEdgeItem* oldEdge2, EditableEdgeItem* edge);

public slots:
        virtual void Update();

private:
        virtual void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = 0);


        EditableNodeItem* m_endpoint1;
        EditableNodeItem* m_endpoint2;

        QColor m_highlight_color;

private:
        static const QColor DEFAULT_HIGHLIGHT_COLOR;
};

} // namespace

#endif // end_of_include_guard