KeyGraphicsItem.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 KEYGRAPHICSITEM_H
#define KEYGRAPHICSITEM_H

#include "FrapperPrerequisites.h"
#include <QtGui/QGraphicsItem>
#include <QtCore/QList>


QT_BEGIN_NAMESPACE
class QGraphicsSceneMouseEvent;
QT_END_NAMESPACE


namespace Frapper {

class SegmentGraphicsItem;

class CurveEditorGraphicsView;


class FRAPPER_GUI_EXPORT KeyGraphicsItem : public QGraphicsItem
{

public: // constructors and destructors

    KeyGraphicsItem ( CurveEditorGraphicsView *curveEditorGraphicsView, const float scale = 1.0f, const float posX = 0.0f );

public: // functions

    void setCurveScale ( const float scale );

    void addSegment ( SegmentGraphicsItem *segmentItem );

    //inline QList<SegmentGraphicsItem *> getSegmentItems () const;

protected: // functions

    QVariant itemChange ( GraphicsItemChange change, const QVariant &value );

    virtual QRectF boundingRect () const;

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

        virtual void mouseMoveEvent ( QGraphicsSceneMouseEvent *event );


private: // data

    QList<SegmentGraphicsItem *> m_segmentItems;

        qreal m_posX;

        qreal m_sceneScale;

        qreal m_size;
};

} // end namespace Frapper

#endif