File indexing completed on 2023-10-03 06:50:26

 /*************************************************************************************
  *  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 PLOTTER3DES_H
 #define PLOTTER3DES_H
 
 #include "plotitem.h"
 
 #include <QModelIndex>
 #include <QRect>
 #include <QVector3D>
 #include <QMatrix4x4>
 #include <QOpenGLFunctions>
 #include <QOpenGLBuffer>
 #include <QOpenGLShaderProgram>
 #include "analitzaplotexport.h"
 
 class QAbstractItemModel;
 
 namespace Analitza
 {
 
 /**
  * \class Plotter3DES
  * 
  * \ingroup AnalitzaPlotModule
  *
  * \brief This class manage the OpenGL scene where the plots will be rendered.
  *
  * Plotter3DES provides an agnostic way to manage a 3d scene for draw math plots,
  * Contains just OpenGL calls, so is uncoupled with QWidget nor QtQuick. This 
  * class needs the PlotsModel (to create the geometry for 3D plots) and also 
  * exposes some methods to change the scene (like hide/show the axis or 
  * reference planes for example)
  */
 
 class ANALITZAPLOT_EXPORT Plotter3DES : private QOpenGLFunctions
 {
     public:
         //TODO transparency effect when select current item
 //         enum FocusEffect {};
 
         explicit Plotter3DES(QAbstractItemModel* model = nullptr);
         virtual ~Plotter3DES();
 
         virtual void initGL();
         virtual void setViewport(const QRectF &vp);
         void drawPlots();
         virtual int currentPlot() const = 0;
         virtual void modelChanged() = 0;
 
         /** Force OpenGL to render the scene. QGLWidget should call updateGL in this method. */
         virtual void renderGL() = 0;
 
         void exportSurfaces(const QString& path) const;
 
         /** Force the plots from @p start to @p end to be recalculated. */
         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; renderGL(); }
 //         void setPlottingAttributes(PlotStyle st) { m_plotStyle = ps; }
         PlottingFocusPolicy plottingFocusPolicy() const { return m_plottingFocusPolicy; }
         void setPlottingFocusPolicy(PlottingFocusPolicy fp);
 
         /** Set the scale of all the scene by @p factor */
         void scale(qreal factor);
 
         // Advanced rotation features
 
         /** Rotates by @p dx and @p dy in screen coordinates. */
         void rotate(int dx, int dy);
 
         /** Query if there is a valid axis arrow for @p x and @p y screen coordinates. */
         CartesianAxis selectAxisArrow(int x, int y);
 
         /** Fix the rotation around @p direction */
         void fixRotation(const QVector3D &direction);
 
         /** Query if the rotation is fixed by a specific direction. */
         bool isRotationFixed() const { return !m_rotFixed.isNull(); }
 
         /** Show a little indicator (as a hint) next to the arrow of @p axis */
         void showAxisArrowHint(CartesianAxis axis);
 
         /** Hide the current indicator of the axis */
         void hideAxisHint();
 
         /**  If the flag @p simplerot is true the rotation ignores any fixed or free direction */
         ANALITZAPLOT_DEPRECATED void setUseSimpleRotation(bool simplerot);
 
         /**  Get information about the current rotarion approach: if return true then rotation is simple. */
         bool isUsingSimpleRotation() const { return m_simpleRotation; }
 
         /** sets the view to the initial perspective */
         void resetViewport();
 
         /**
          * saves the currently displayed plot in @p url
          *
          * @returns whether it was saved successfully
          */
         bool save(const QUrl &url);
 
         /**
          * @returns the filters supported by save
          *
          * @see save()
          */
         QStringList filters() const;
 
         void setReferencePlaneColor(const QColor &color) { m_referencePlaneColor = color; }
 
     protected:
         void addPlots(PlotItem* item);
 
     private:
         static const quint8 XAxisArrowColor[];
         static const quint8 YAxisArrowColor[];
         static const quint8 ZAxisArrowColor[];
 
         virtual QImage grabImage() = 0;
 
         void resetViewPrivate(const QVector3D& rot);
 
         enum SceneObjectType {Axes, RefPlaneXY, XArrowAxisHint, YArrowAxisHint, ZArrowAxisHint};
 
         PlotItem *itemAt(int row) const;
 
         void drawAxes();
         void drawRefPlane();
 
         QAbstractItemModel* m_model;
 
         QMap<PlotItem*, QOpenGLBuffer> m_itemGeometries; // pair:=<indexdata_id, vertex-normals_id>
 
         PlotStyle m_plotStyle;
         PlottingFocusPolicy m_plottingFocusPolicy;
 
         //scene properties
         QMap<SceneObjectType, uint > m_sceneObjects;
         QRectF m_viewport;
         const GLfloat m_depth;
         qreal m_scale;
         QMatrix4x4 m_rot;
         QVector3D m_rotFixed;
         CartesianAxis m_currentAxisIndicator;
         bool m_simpleRotation;
         QVector3D m_simpleRotationVector;
         QVector3D m_lightpos;
         QColor m_referencePlaneColor;
 
         QOpenGLShaderProgram program;
         QMatrix4x4 m_projection;
 };
 
 }
 
 #endif // PLOTTER3D_H