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//
// Filename : QGLBasicWidget.h
// Author : Stephane Grabli
// Purpose : A basic qgl widget designed to be used as
// a 2D offscreen buffer. (no interactive function)
// Date of creation : 26/12/2003
//
///////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) : Please refer to the COPYRIGHT file distributed
// with this source distribution.
//
// 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 for more details.
//
// You should have received a copy of the GNU 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.
//
///////////////////////////////////////////////////////////////////////////////
#ifndef QGLBASICWIDGET_H
#define QGLBASICWIDGET_H
#include <qgl.h>
#include "../geometry/Geom.h"
//#include "../rendering/pbuffer.h"
#include "../scene_graph/NodeDrawingStyle.h"
using namespace Geometry;
class GLRenderer;
class ViewMap;
// #ifndef WIN32
// class PBuffer;
// #endif
class QGLBasicWidget : public QGLWidget
{
Q_OBJECT
public:
QGLBasicWidget( QWidget* parent, const char* name, int w, int h, const QGLWidget* shareWidget=0 );
QGLBasicWidget( const QGLFormat& format, QWidget* parent, const char* name,
int w, int h, const QGLWidget* shareWidget=0 );
~QGLBasicWidget();
/*! Adds a node directly under the root node */
void AddNode(Node* iNode);
/*! Detach the node iNode which must
* be directly under the root node.
*/
void DetachNode(Node *iNode);
/*! reads the frame buffer pixels as luminance .
* \param x
* The lower-left corner x-coordinate of the
* rectangle we want to grab.
* \param y
* The lower-left corner y-coordinate of the
* rectangle we want to grab.
* \param width
* The width of the rectangle we want to grab.
* \param height
* The height of the rectangle we want to grab.
* \params pixels
* The array of float (of size width*height) in which
* the read values are stored.
*/
void readPixels(int x,int y,int width,int height,float *pixels) ;
// #ifndef WIN32
// void draw() { paintGL(); }
// #endif
inline void SetClearColor(const Vec3f& c) {_clearColor = c;}
inline Vec3f getClearColor() const {return _clearColor;}
protected:
virtual void initializeGL();
virtual void paintGL();
virtual void resizeGL(int w, int h);
private:
// #ifndef WIN32
// PBuffer *_Pbuffer;
// #endif
NodeDrawingStyle _RootNode;
Vec3f _clearColor;
GLRenderer *_pGLRenderer;
};
#endif // QGLBASICWIDGET_H
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