CurveEditorGraphicsView.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 CURVEEDITORGRAPHICSVIEW_H
#define CURVEEDITORGRAPHICSVIEW_H

#include "FrapperPrerequisites.h"
#include "BaseGraphicsView.h"
#include "ParameterGroup.h"
#include "NumberParameter.h"
#include "TimelineGraphicsItem.h"
#include <QtGui/QGraphicsView>
#include <QtGui/QPen>
#include <QtGui/QPainter>
#include <QtGui/QpainterPath>
#include <QtCore/QPointF>
#include <QtGui/QTreeWidget>


namespace Frapper {


class KeyGraphicsItem;

class FRAPPER_GUI_EXPORT CurveEditorGraphicsView : public BaseGraphicsView
{

    Q_OBJECT

public: // constructors and destructors

    CurveEditorGraphicsView ( QWidget *parent = 0, Qt::WindowFlags flags = 0 );

    virtual ~CurveEditorGraphicsView ();

public: // functions

    void showCurves ( QList<QTreeWidgetItem *> *selectedItems );

    virtual void buildScene ();

    void setCurrentFrame ( const int pos );


public slots: //

    void homeView ();

    void frameAll ();

    void frameSelected ();

        void toggleShowEnabledOnly( bool enabled );

signals:
        void drag();

protected: // event handlers

    //virtual void paintEvent (QPaintEvent *event);

    inline void drawCurves ( AbstractParameter *parameter );


        virtual void mouseMoveEvent ( QMouseEvent * event );


    virtual void resizeEvent ( QResizeEvent *event );

    virtual void drawBackground (QPainter *painter, const QRectF &rect);

protected: // functions
        virtual void wheelEvent ( QWheelEvent *event );

private: // functions
        void scaleSceneItems ( const float value );

private: // data

    QPen m_pointPen;

    QPen m_connectionPen;

    QBrush m_pointBrush;

    QSizeF m_pointSize;

    QList<NumberParameter *> m_numberParametersToDraw;

    TimelineGraphicsItem *m_timeline;

    int m_timelinePos;

    int m_maxLength;

    float m_maxValue;

    bool m_showEnabledCurves;

        qreal m_scaleFactor;
};

} // end namespace Frapper

#endif