// Version: $Id: 35096df13bc0a45c3ecfcdde90e0334dd451add2 $
//
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// Commentary:
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// Change Log:
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// Code:

#pragma once

#include <dtkComposerExport.h>

#include <QtWidgets>

class dtkComposerNode;
class dtkComposerSceneEdge;
class dtkComposerSceneEdgeList;
class dtkComposerScenePort;
class dtkComposerScenePortList;

// /////////////////////////////////////////////////////////////////
// dtkComposerSceneNode
// /////////////////////////////////////////////////////////////////

class dtkComposerSceneNodePrivate;

class DTKCOMPOSER_EXPORT dtkComposerSceneNode : public QGraphicsItem
{
public:
    dtkComposerSceneNode(void);
    virtual ~dtkComposerSceneNode(void);

#pragma mark -
#pragma mark Wrapping of logic

public:
    virtual void wrap(dtkComposerNode *wrapee);

public:
    dtkComposerNode *wrapee(void);

#pragma mark -
#pragma mark Parent/Child relationships

public:
    dtkComposerSceneNode *parent(void);

public:
    void setParent(dtkComposerSceneNode *parent);

#pragma mark -
#pragma mark Structure management

public:
    void  addInputEdge(dtkComposerSceneEdge *edge);
    void addOutputEdge(dtkComposerSceneEdge *edge);

    void  removeInputEdge(dtkComposerSceneEdge *edge);
    void removeOutputEdge(dtkComposerSceneEdge *edge);

    dtkComposerSceneEdgeList  inputEdges(void);
    dtkComposerSceneEdgeList outputEdges(void);

public:
    int  addInputPort(dtkComposerScenePort *port);
    void addOutputPort(dtkComposerScenePort *port);

    void  removeInputPort(dtkComposerScenePort *port);
    void removeOutputPort(dtkComposerScenePort *port);

    dtkComposerScenePortList  inputPorts(void);
    dtkComposerScenePortList outputPorts(void);

#pragma mark -
#pragma mark Attributes setup

public:
    const QString& title(void);

public:
    void setTitle(const QString& title);

public:
    bool embedded(void);

public:
    void setEmbedded(bool embedded);

#pragma mark -
#pragma mark Graphics

public:
    virtual QRectF boundingRect(void) const = 0;

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

public:
    virtual void layout(void) = 0;

public:
    virtual void resize(qreal width, qreal height) = 0;

// protected:
//     QVariant itemChange(GraphicsItemChange change, const QVariant& value);

protected:
    dtkComposerSceneNodePrivate *d;
};

// /////////////////////////////////////////////////////////////////
// dtkComposerSceneNodeList
// /////////////////////////////////////////////////////////////////

class dtkComposerSceneNodeList : public QList<dtkComposerSceneNode *> {};

//
// dtkComposerSceneNode.h ends here