glarea.h

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/****************************************************************************
* VCGLib                                                            o o     *
* Visual and Computer Graphics Library                            o     o   *
*                                                                _   O  _   *
* Copyright(C) 2007                                                \/)\/    *
* Visual Computing Lab                                            /\/|      *
* ISTI - Italian National Research Council                           |      *
*                                                                    \      *
* All rights reserved.                                                      *
*                                                                           *
* This program is free software; you can redistribute it and/or modify      *   
* it under the terms of the GNU General Public License as published by      *
* the Free Software Foundation; either version 2 of the License, or         *
* (at your option) any later version.                                       *
*                                                                           *
* 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 General Public License (http://www.gnu.org/licenses/gpl.txt)          *
* for more details.                                                         *
*                                                                           *
****************************************************************************/
/****************************************************************************
History

$Log: not supported by cvs2svn $
Revision 1.1  2007/10/18 08:52:06  benedetti
Initial release.


****************************************************************************/

#ifndef GLAREA_H_
#define GLAREA_H_

#include <GL/glew.h>
#include <QGLWidget>

#include <wrap/gui/trackball.h>


#include "mesh.h"
#include "ml_scene_renderer.h"


enum MyDrawMode{MDM_SMOOTH=0,MDM_POINTS,MDM_WIRE,MDM_FLATWIRE,MDM_FLAT};

class SharedDataOpenGLContext : public QGLWidget
{
        Q_OBJECT
public:
        SharedDataOpenGLContext(CMeshO& mesh,MLThreadSafeMemoryInfo& mi,QWidget* parent = 0);
        ~SharedDataOpenGLContext();

    void myInitGL();
        void deAllocateBO();

        MLThreadSafeGLMeshAttributesFeeder feeder;

public slots:
        void passInfoToOpenGL(int mode);

signals:
        void dataReadyToBeRead(MyDrawMode,vcg::GLFeederInfo::ReqAtts&);
};

class GLArea:public QGLWidget
{
        Q_OBJECT 
public:
    GLArea (CMeshO& m,MLThreadSafeGLMeshAttributesFeeder& feed,QWidget* parent = NULL,QGLWidget* sharedcont = NULL);
        ~GLArea();
        void resetTrackBall();

signals:
        void setStatusBar(QString message);
protected:
        void initializeGL ();
        void resizeGL (int w, int h);
        void paintGL ();
        void keyReleaseEvent(QKeyEvent * e);
        void keyPressEvent(QKeyEvent * e);
        void mousePressEvent(QMouseEvent*e);
        void mouseMoveEvent(QMouseEvent*e);
        void mouseReleaseEvent(QMouseEvent*e);
        void wheelEvent(QWheelEvent*e); 
public slots:
        void updateRequested(MyDrawMode,vcg::GLFeederInfo::ReqAtts&);
private:
        CMeshO& mesh;
        vcg::Trackball track;
        void initMesh(QString message);
        MyDrawMode drawmode;
        MLThreadSafeGLMeshAttributesFeeder& feeder;
        vcg::GLFeederInfo::ReqAtts rq;
};

#endif /*GLAREA_H_ */