Warning, file /education/khipu/src/datastore.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

 /*************************************************************************************
  *  Copyright (C) 2012 by Percy Camilo T. Aucahuasi <percy.camilo.ta@gmail.com>      *
  *                                                                                   *
  *  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   *
  *************************************************************************************/
 
 #include "datastore.h"
 
 //Analitza includes
 #include <analitza/variables.h>
 #include <analitza/expression.h>
 #include <analitzaplot/plotsmodel.h>
 #include <analitzaplot/planecurve.h>
 #include <analitzaplot/plotsdictionarymodel.h>
 
 //Qt includes
 #include <qitemselectionmodel.h>
 #include <QFile>
 #include <QString>
 #include <QUrl>
 #include <QFileDialog>
 
 //KDE includes
 #include <KMessageBox>
 #include <KLocalizedString>
 
 //local includes
 #include "spacesmodel.h"
 #include "spaceplotsproxymodel.h"
 #include "spaceitem.h"
 #include "plotseditor.h"
 
 using namespace Analitza;
 
 DataStore::DataStore(QObject* parent)
     : QObject(parent)
     , m_currentSpace(-1)
 {
     m_spacesModel = new SpacesModel(this);
     m_variables = new Analitza::Variables;
     m_plotsModel = new PlotsModel(this);
     
     m_plotsDictionaryModel = new PlotsDictionaryModel(this);
     
     connect(this, SIGNAL(spaceActivated(int)), SLOT(setCurrentSpace(int)));
 
     connect(m_plotsModel, SIGNAL(rowsInserted(QModelIndex,int,int)), SLOT(mapPlot(QModelIndex,int)));
 
     m_spacePlotsFilterProxyModel = new SpacePlotsFilterProxyModel(this);
     m_spacePlotsFilterProxyModel->setSourceModel(m_plotsModel);
 
     m_currentSelectionModel = new QItemSelectionModel(m_spacePlotsFilterProxyModel);
     connect(m_currentSelectionModel, SIGNAL(currentChanged(QModelIndex,QModelIndex)), SLOT(selectCurrentPlot(QModelIndex)));
 
     m_currentSpaceSelectionModel = new QItemSelectionModel(m_spacesModel);
     
     connect(m_spacePlotsFilterProxyModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)), SLOT(plotDataChanged(QModelIndex)));
 }
 
 DataStore::~DataStore()
 {
     delete m_variables;
 }
 
 bool DataStore::isMapped(SpaceItem* space, PlotItem* plot) const
 {
     return m_maps.values(space).contains(plot);
 }
 
 void DataStore::setCurrentSpace(int spaceidx)
 {
     if (m_spacesModel->index(spaceidx).isValid())
     {
         m_currentSpace = spaceidx;
         m_spacePlotsFilterProxyModel->setFilterSpaceDimension(m_spacesModel->space(spaceidx)->dimension());
         m_spacePlotsFilterProxyModel->setFilterSpace(m_spacesModel->space(spaceidx));
     } else {
         qWarning() << "wrong space" << spaceidx;
     }
 }
 
 void DataStore::mapPlot(const QModelIndex & parent, int start)
 {
     Q_ASSERT(m_currentSpace>=0);
     PlotItem* item = m_plotsModel->index(start, 0, parent).data(PlotsModel::PlotRole).value<PlotItem*>();
 
     m_maps.insertMulti(m_spacesModel->space(m_currentSpace), item);
 }
 
 void DataStore::selectCurrentPlot(const QModelIndex& curr)
 {
     if (!curr.isValid())
         return;
     
     int i = 0;
     switch (curr.data(PlotsModel::PlotRole).value<PlotItem*>()->coordinateSystem())
     {
         //TODO for 3d
         case Cartesian: i = 1; break;
         case Polar: i = 2; break;
         default : i=0; break;
     }
     emit gridStyleChanged(i);
 }
 
 void DataStore::plotDataChanged(const QModelIndex& topLeft)
 {
     int i = 0;
 
     switch (topLeft.data(PlotsModel::PlotRole).value<PlotItem*>()->coordinateSystem())
     {
         case Cartesian: i = 1; break;
         case Polar: i = 2; break;
         default : i=0; break;
     }
     emit gridStyleChanged(i);
 }
 
 void DataStore::removeCurrentSpace()
 {
     if (m_currentSpaceSelectionModel->hasSelection())
     {
 
         m_maps.remove(m_spacesModel->space(m_currentSpace));
 
         m_spacesModel->removeRow(m_currentSpace);
 
         m_currentSpaceSelectionModel->clear();
     }
 }
 
 void DataStore::unmapPlot(const QModelIndex & proxyindex )
 {
     QMap<SpaceItem*, PlotItem*>::iterator i = m_maps.begin();
 
     while (i != m_maps.end())
     {
         if (i.value() == proxyindex.data(PlotsModel::PlotRole).value<PlotItem*>())
         {
             m_maps.erase(i);
             break;
         }
         ++i;
     }
     m_spacePlotsFilterProxyModel->removeRow(proxyindex.row());
 }
 
 void DataStore::removeSpace(int row)
 {
     m_maps.remove(m_spacesModel->space(row));
     m_spacesModel->removeRow(row);
 }
 
 void DataStore::saveSpaceAsDictionary(QModelIndex ind)
 {
     const QString path = QFileDialog::getSaveFileName(nullptr, i18n( "Export the space as a Dictionary" ), {}, i18n("Plot-Dictionary Files (*.plots);;All Files (*)"));
     QFile file(path);
 
     if(!file.open(QFile::WriteOnly | QFile::Text)){
         qDebug() << "Error in writing";
         return;
     }
 
     QTextStream out(&file);
     if(m_maps.empty()) {
         KMessageBox::error(nullptr,i18n("Error while saving file, no plots available for this space"),i18n("Error while saving a dictionary"));
         return;
     }
 
     QList<Analitza::PlotItem*> itemList= m_maps.values(m_spacesModel->space(ind.row()));
 
     for(int i=0;i<itemList.size();i++) {
         QString name = itemList.at(i)->name();
         // we dont want the plots in the dictionary which dont have names !
         if(!name.isEmpty())
             out << name << " := " << itemList.at(i)->expression().toString() << "\n";
     }
     file.close();
 }
 
 void DataStore::clearAllData()
 {
     //delete prev data
     QItemSelectionModel *toBeRemovedCurrentSelectionModel = m_currentSelectionModel;
     QItemSelectionModel *toBeRemovedcurrentSpaceSelectionModel = m_currentSpaceSelectionModel;
     
     SpacesModel *toBeRemovedSpacesModel = m_spacesModel;
     PlotsModel *toBeRemovedPlotsModel = m_plotsModel;
 
     toBeRemovedCurrentSelectionModel->deleteLater();
     toBeRemovedcurrentSpaceSelectionModel->deleteLater();
     toBeRemovedPlotsModel->deleteLater();
     toBeRemovedSpacesModel->deleteLater();
     delete m_variables;
     
     //setup&bindnew data structs
     
     m_spacesModel = new SpacesModel(this);
     m_variables = new Analitza::Variables;
     m_plotsModel = new PlotsModel(this);
     
     connect(m_plotsModel, SIGNAL(rowsInserted(QModelIndex,int,int)), SLOT(mapPlot(QModelIndex,int)));
 
     m_spacePlotsFilterProxyModel->setSourceModel(m_plotsModel);
 
     m_currentSelectionModel = new QItemSelectionModel(m_spacePlotsFilterProxyModel);
     connect(m_currentSelectionModel, SIGNAL(currentChanged(QModelIndex,QModelIndex)), SLOT(selectCurrentPlot(QModelIndex)));
 
     m_currentSpaceSelectionModel = new QItemSelectionModel(m_spacesModel);
 
     connect(m_spacePlotsFilterProxyModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)), SLOT(plotDataChanged(QModelIndex)));
 }