plotter3d.h

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/*************************************************************************************
 *  Copyright (C) 2012 by Percy Camilo T. Aucahuasi <percy.camilo.ta@gmail.com>      * 
 *  Copyright (C) 2007 by Abderrahman Taha: Basic OpenGL calls like scene, lights    *
 *                                          and mouse behaviour taken from K3DSurf   *
 *                                                                                   *
 *  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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA   *
 *************************************************************************************/

#ifndef PLOTTER3D_H
#define PLOTTER3D_H

#include "plotitem.h"

#include <QModelIndex>
#include <QRect>
#include <QVector3D>
#include <QMatrix4x4>

#define GL_GLEXT_PROTOTYPES
#ifdef Q_OS_WIN
#include <windows.h>
#include <GL/glew.h>
#endif

#include <GL/glu.h>

class QAbstractItemModel;
class QPainter;
class QPaintDevice;
class QModelIndex;

namespace Analitza
{

class ANALITZAPLOT_EXPORT Plotter3D
{
    public:
        static const GLubyte XAxisArrowColor[];
        static const GLubyte YAxisArrowColor[];
        static const GLubyte ZAxisArrowColor[];

        //TODO transparency effect when select current item 
//         enum FocusEffect {};

        Plotter3D(QAbstractItemModel* model = 0);
        virtual ~Plotter3D();

        virtual void initGL();
        virtual void setViewport(const QRectF &vp);
        virtual void drawPlots();
        virtual int currentPlot() const = 0;
        virtual void modelChanged() = 0;

        virtual void renderGL() = 0;
        
        void updatePlots(const QModelIndex & parent, int start, int end);

        void setModel(QAbstractItemModel* f);
        QAbstractItemModel* model() const { return m_model; }

        PlotStyle plotStyle() const { return m_plotStyle; }
        void setPlotStyle(PlotStyle ps) { m_plotStyle = ps; }
//         void setPlottingAttributes(PlotStyle st) { m_plotStyle = ps; }
        PlottingFocusPolicy plottingFocusPolicy() const { return m_plottingFocusPolicy; }
        void setPlottingFocusPolicy(PlottingFocusPolicy fp);

        void scale(GLdouble factor);

        // Advanced rotation features

        void rotate(int dx, int dy);

        CartesianAxis selectAxisArrow(int x, int y);

        void fixRotation(const QVector3D &direction);
        
        bool isRotationFixed() const { return !m_rotFixed.isNull(); }
        
        void showAxisArrowHint(CartesianAxis axis);

        void hideAxisHint();

        void setReferencePlaneColor(const QColor &color);

        void setUseSimpleRotation(bool simplerot) { m_simpleRotation = simplerot; }

        bool isUsingSimpleRotation() const { return m_simpleRotation; }
        
        void resetView();

    protected:
        void addPlots(PlotItem* item);
        
    private:
        void resetViewPrivate(const QVector3D& rot);
        
        enum SceneObjectType {Axes, RefPlaneXY, XArrowAxisHint, YArrowAxisHint, ZArrowAxisHint};
        
        PlotItem *itemAt(int row) const;

        void initAxes();
        void initRefPlanes();

        QAbstractItemModel* m_model;

        QMap<PlotItem*, QPair<GLuint, GLuint> > m_itemGeometries; // pair:=<indexdata_id, vertex-normals_id>

        PlotStyle m_plotStyle;
        PlottingFocusPolicy m_plottingFocusPolicy;

        //scene properties
        QMap<SceneObjectType, GLuint > m_sceneObjects;
        QRectF m_viewport;
        const GLfloat m_depth;
        GLdouble m_scale;
        QMatrix4x4 m_rot;
        QVector3D m_rotFixed;
        CartesianAxis m_currentAxisIndicator;
        bool m_simpleRotation;
        QVector3D m_simpleRotationVector;
        QVector3D m_lightpos;
        QColor m_referencePlaneColor;
};

}

#endif // PLOTTER3D_H