PinGraphicsItem.h

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/*
-----------------------------------------------------------------------------
This source file is part of FRAPPER
research.animationsinstitut.de
sourceforge.net/projects/frapper

Copyright (c) 2008-2009 Filmakademie Baden-Wuerttemberg, Institute of Animation 

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free Software
Foundation; version 2.1 of the License.

This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
-----------------------------------------------------------------------------
*/


#ifndef PINGRAPHICSITEM_H
#define PINGRAPHICSITEM_H

#include "BaseRectItem.h"
#include "Parameter.h"
#include "ParameterGroup.h"
#include "InstanceCounterMacros.h"

namespace Frapper {

class FRAPPER_CORE_EXPORT PinGraphicsItem : public QObject, public BaseRectItem
{

    Q_OBJECT
        ADD_INSTANCE_COUNTER

private: // nested enumerations

    enum ConnectedType {
        CT_All,
        CT_Connected,
        CT_NonConnected
    };

public: // constructors and destructors

    PinGraphicsItem ( QGraphicsItem *parent, int index, Parameter *parameter );

    PinGraphicsItem ( QGraphicsItem *parent, int index, ParameterGroup *parameterGroup, Parameter::PinType pinType );

    PinGraphicsItem ( QGraphicsItem *parent, int index, ParameterGroup *parameterGroup, Parameter::PinType pinType, bool connected );

    ~PinGraphicsItem ();

public: // functions

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

    QPointF center () const;

    void setEnabled ( bool enabled );

    bool setEnabled ( Parameter::Type parameterType, Parameter::PinType pinType );

    Parameter::PinType getPinType () const;

    bool represents ( Parameter *parameter ) const;

    bool represents ( Parameter::Type parameterType ) const;

signals: //

    void parameterClicked ( PinGraphicsItem *pinItem, Parameter *parameter );

protected: // functions

    void mouseReleaseEvent ( QGraphicsSceneMouseEvent *event );

    void contextMenuEvent ( QGraphicsSceneContextMenuEvent *event );

private: // functions

    void fillMenu ( QMenu *menu, ParameterGroup *parameterGroup );

    private slots:
        void removeParameter ();

private: // data

    AbstractParameter *m_abstractParameter;

    bool m_isGroup;

    bool m_isRootGroup;

    Parameter::PinType m_pinType;

    ConnectedType m_connectedType;

    Parameter::Type m_parameterTypeFilter;

};

} // end namespace Frapper

#endif