PainterGraphicsView.h

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

Copyright (c) 2008-2012 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 PAINTERGRAPHICSVIEW_H
#define PAINTERGRAPHICSVIEW_H

#include "FrapperPrerequisites.h"
#include "BaseGraphicsView.h"
#include "PainterGraphicsItems.h"
#include "PainterGraphicsScene.h"

#include "ParameterGroup.h"
#include "NumberParameter.h"
#include <QtGui/QGraphicsView>
#include <QtGui/QPen>
#include <QtGui/QPainter>
#include <QtGui/QPainterPath>


namespace PainterPanel {
using namespace Frapper;


class PainterGraphicsView : public BaseGraphicsView
{
    Q_OBJECT

public: // constructors and destructors

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

    virtual ~PainterGraphicsView ();

    enum DrawMode { NONE = 0, PAINT, LINE, RECT, CIRCLE, ELLIPSE, POLYGON, POLYLINE, CURVE, CLOSEDCURVE, NUM_MODES };

public: // functions

    void renderToImage( QImage& image );

    void setDrawMode( DrawMode drawmode);

    void setCurrentScene( PainterGraphicsScene *scene);

public slots: //

    void onSelectionChanged();

    void changeBrush( QBrush brush);

    void changePen( QPen pen);

signals:

    void triggerRedraw();

    void sceneChanged( QGraphicsScene *scene );

    void drawModeChanged( int mode );

    void penChanged( QPen pen);

    void brushChanged( QBrush brush);

    void selectionChanged( QList<QGraphicsItem*> items );

protected: // event handlers

        virtual void mouseMoveEvent ( QMouseEvent * event );

        virtual void mousePressEvent(QMouseEvent *event);

        virtual void mouseReleaseEvent(QMouseEvent *event);

    virtual void keyPressEvent ( QKeyEvent *event );

protected: // functions


private: // functions

    void toggleDrawmode();

    void clearScene();

    BaseShapeItem* createGraphicsItem( QPointF pos );
            
private: // data

    BaseShapeItem *m_currentItem;

    QBrush m_brush;

    QPen m_pen;
        
    DrawMode m_drawMode;

};

} // end namespace Frapper

#endif