File indexing completed on 2024-10-06 12:07:41

 /*************************************************************************************
 *  Copyright (C) 2012 by Aleix Pol <aleixpol@kde.org>                               *
 *                                                                                   *
 *  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 "plotsfactory.h"
 #include <analitzaplot/functiongraph.h>
 #include "private/functiongraphfactory.h"
 #include <analitza/analyzer.h>
 #include <analitza/variables.h>
 #include <QStringList>
 #include <QCoreApplication>
 
 using namespace Analitza;
 
 Q_GLOBAL_STATIC(PlotsFactory, factoryInstance)
 
 PlotsFactory::PlotsFactory()
     : m_vars(new Variables)
 {}
 
 PlotsFactory::~PlotsFactory()
 {
 }
 
 PlotsFactory* PlotsFactory::self()
 {
     return factoryInstance;
 }
 
 PlotBuilder PlotsFactory::requestPlot(const Analitza::Expression& testexp, Dimension dim, const QSharedPointer<Variables> &vars) const
 {
     QStringList errs;
     
     if(!testexp.isCorrect() || testexp.toString().isEmpty()) {
         errs << QCoreApplication::tr("The expression is not correct");
         PlotBuilder b;
         b.m_errors = errs;
         return b;
     }
     
     Analitza::Expression exp(testexp);
     if(exp.isDeclaration())
         exp = exp.declarationValue();
     
     if(exp.isEquation())
         exp = exp.equationToFunction();
     
     Analitza::Analyzer a(vars ? vars : m_vars);
     a.setExpression(exp);
     a.setExpression(a.dependenciesToLambda());
 
     QString id;
     if(a.isCorrect()) {
         QString expectedid = FunctionGraphFactory::self()->trait(a.expression(), a.type(), dim);
         if(FunctionGraphFactory::self()->contains(expectedid)) {
             id = expectedid;
         } else if (!expectedid.isEmpty())
             errs << QCoreApplication::tr("Function type '%1' not recognized").arg(expectedid);
         else
             errs << QCoreApplication::tr("Function '%1' not recognized").arg(a.expression().toString());
     } else {
         errs << a.errors();
     }
     
     Q_ASSERT(!errs.isEmpty() || !id.isEmpty());
     
     PlotBuilder b;
     b.m_errors = errs;
     b.m_id = id;
     b.m_expression = a.expression();
     b.m_display = testexp.toString();
     b.m_vars = vars;
     return b;
 }
 
 QStringList PlotsFactory::examples(Dimensions s) const
 {
     QStringList examples;
     if(s & Dim1D) examples += FunctionGraphFactory::self()->examples(Dim1D);
     if(s & Dim2D) examples += FunctionGraphFactory::self()->examples(Dim2D);
     if(s & Dim3D) examples += FunctionGraphFactory::self()->examples(Dim3D);
     return examples;
 }
 
 //------------------------------------------ PlotBuilder
 
 PlotBuilder::PlotBuilder()
     : m_vars(nullptr)
 {}
 
 bool PlotBuilder::canDraw() const
 {
     return m_errors.isEmpty() && !m_id.isEmpty();
 }
 
 FunctionGraph* PlotBuilder::create(const QColor& color, const QString& name) const
 {
     FunctionGraph* it = FunctionGraphFactory::self()->buildItem(m_id, m_expression, m_vars);
     it->setColor(color);
     it->setName(name);
     it->setDisplay(m_display);
     return it;
 }
 
 Analitza::Expression PlotBuilder::expression() const
 {
     return m_expression;
 }
 
 QString PlotBuilder::display() const
 {
     return m_display;
 }