File indexing completed on 2022-09-27 12:21:22

0001 /*************************************************************************************
0002  *  Copyright (C) 2010-2012 by Percy Camilo T. Aucahuasi <percy.camilo.ta@gmail.com> *
0003  *  Copyright (C) 2007 by Abderrahman Taha: Basic OpenGL calls like scene, lights    *
0004  *                                          and mouse behaviour taken from K3DSurf   *
0005  *                                                                                   *
0006  *  This program is free software; you can redistribute it and/or                    *
0007  *  modify it under the terms of the GNU General Public License                      *
0008  *  as published by the Free Software Foundation; either version 2                   *
0009  *  of the License, or (at your option) any later version.                           *
0010  *                                                                                   *
0011  *  This program is distributed in the hope that it will be useful,                  *
0012  *  but WITHOUT ANY WARRANTY; without even the implied warranty of                   *
0013  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                    *
0014  *  GNU General Public License for more details.                                     *
0015  *                                                                                   *
0016  *  You should have received a copy of the GNU General Public License                *
0017  *  along with this program; if not, write to the Free Software                      *
0018  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA   *
0019  *************************************************************************************/
0020 
0021 #include "plotsview3d.h"
0022 #include <analitzaplot/plotsmodel.h>
0023 #include <analitzaplot/surface.h>
0024 #include <analitzaplot/spacecurve.h>
0025 #include <QVector3D>
0026 #include <QItemSelectionModel>
0027 #include <QVector>
0028 #include <QDebug>
0029 
0030 using namespace Analitza;
0031 
0032 PlotsView3D::PlotsView3D(QWidget *parent)
0033     : QGLWidget(parent), m_selection(0), old_x(-1), old_y(-1)
0034 {
0035     setFocusPolicy(Qt::ClickFocus);
0036 }
0037 
0038 PlotsView3D::~PlotsView3D()
0039 {}
0040 
0041 void PlotsView3D::setSelectionModel(QItemSelectionModel* selection)
0042 {
0043     Q_ASSERT(selection);
0044 
0045     m_selection = selection;
0046 //     connect(m_selection,SIGNAL(currentChanged(QModelIndex,QModelIndex)), SLOT(forceRepaint()));
0047 }
0048 
0049 void PlotsView3D::resetView()
0050 {
0051     //TODO remove qglviewer
0052 //     setSceneCenter(qglviewer::Vec(0.f,0.f,0.f));
0053 
0054 //     camera()->setUpVector(qglviewer::Vec(-1,-1,1), false);
0055 //     camera()->setPosition(qglviewer::Vec(7,7,7));
0056 //     camera()->lookAt(qglviewer::Vec(0,0,0));
0057 //     camera()->setRevolveAroundPoint(qglviewer::Vec(0,0,0));
0058 }
0059 
0060 void PlotsView3D::addFuncs(const QModelIndex & parent, int start, int end)
0061 {
0062     updatePlots(parent, start, end);
0063 }
0064 
0065 void PlotsView3D::removeFuncs(const QModelIndex & parent, int start, int end)
0066 {
0067     updatePlots(parent, start, end);
0068 }
0069 
0070 //NOTE
0071 //si hay un cambio aki es desetvisible (que no es necesario configurar en el plotitem) o es del
0072 //setinterval (que si es necesario configurarlo en el plotitem)
0073 //el enfoque es: si hay un cambio borro el displaylist y lo genero de nuevo (no lo genero si el item no es visible)
0074 //TODO cache para exp e interval ... pues del resto es solo cuestion de update
0075 void PlotsView3D::updateFuncs(const QModelIndex& start, const QModelIndex& end)
0076 {
0077     updatePlots(QModelIndex(), start.row(), end.row());
0078 }
0079 
0080 void PlotsView3D::paintGL()
0081 {
0082     drawPlots();
0083 }
0084 
0085 void PlotsView3D::initializeGL()
0086 {
0087     initGL();
0088 }
0089 
0090 void PlotsView3D::resizeGL(int newwidth, int newheight)
0091 {
0092     setViewport(QRectF(0,0,newwidth,newheight));
0093 }
0094 
0095 void PlotsView3D::mousePressEvent(QMouseEvent *e)
0096 {
0097     buttons = e->buttons();
0098 
0099     old_y = e->y();
0100     old_x = e->x();
0101     CartesianAxis axis = selectAxisArrow(e->x(), e->y());
0102     showAxisArrowHint(axis);
0103 
0104     if (isRotationFixed() && axis != InvalidAxis) {
0105         fixRotation(QVector3D());
0106         hideAxisHint();
0107     } else switch (axis)
0108     {
0109         case XAxis: 
0110             fixRotation(QVector3D(1,0,0));
0111             break;
0112         case YAxis: 
0113             fixRotation(QVector3D(0,1,0));
0114             break;
0115         case ZAxis: 
0116             fixRotation(QVector3D(0,0,1));
0117             break;
0118         case InvalidAxis:
0119             break;
0120     }
0121 
0122 }
0123 
0124 void PlotsView3D::modelChanged()
0125 {
0126 //     if (model()) {
0127 //         disconnect(model(), SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(updateFuncs(QModelIndex,QModelIndex)));
0128 //         disconnect(model(), SIGNAL(rowsInserted(QModelIndex,int,int)), this, SLOT(addFuncs(QModelIndex,int,int)));
0129 //         disconnect(model(), SIGNAL(rowsRemoved(QModelIndex,int,int)), this, SLOT(removeFuncs(QModelIndex,int,int)));
0130 //     }
0131 
0132 //     for (int i = 0; i < model()->rowCount(); ++i) {
0133 //         if (itemAt(i)) {
0134 //             glDeleteLists(m_displayLists[itemAt(i)], 1);
0135 //             addFuncs(QModelIndex(), 0, model()->rowCount()-1);
0136 //         }
0137 //     }
0138 
0139     connect(model(), &QAbstractItemModel::dataChanged, this, &PlotsView3D::updateFuncs);
0140     connect(model(), &QAbstractItemModel::rowsInserted, this, &PlotsView3D::addFuncs);
0141     connect(model(), &QAbstractItemModel::rowsRemoved, this, &PlotsView3D::removeFuncs);
0142 
0143     update();
0144 }
0145 
0146 void PlotsView3D::renderGL()
0147 {
0148     update();
0149 }
0150 
0151 void PlotsView3D::wheelEvent(QWheelEvent* ev)
0152 {
0153     scale(1.f-ev->delta()/1000.f);
0154 }
0155 
0156 void PlotsView3D::mouseMoveEvent(QMouseEvent *e)
0157 {
0158 //TODO translate with middle btn
0159 // Rotational function :
0160     if(buttons & Qt::LeftButton)
0161         rotate(old_x - e->x(), old_y - e->y());
0162 
0163     old_y = e->y();
0164     old_x = e->x();
0165 }
0166 
0167 void PlotsView3D::keyPressEvent(QKeyEvent* ev)
0168 {
0169     switch(ev->key()) {
0170         case Qt::Key_S:
0171             scale(1.1);
0172             break;
0173         case Qt::Key_W:
0174             scale(0.9);
0175             break;
0176         case Qt::Key_Left:
0177             rotate(-10, 0);
0178             break;
0179         case Qt::Key_Right:
0180             rotate(10, 0);
0181             break;
0182         case Qt::Key_Up:
0183             rotate(0, -10);
0184             break;
0185         case Qt::Key_Down:
0186             rotate(0, 10);
0187             break;
0188     }
0189 }