dictionary.cpp

Go to the documentation of this file.

/*************************************************************************************
 *  Copyright (C) 2007 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 "dictionary.h"
#include <analitza/variables.h>
#include <analitza/expression.h>
#include <analitzagui/operatorsmodel.h>
#include <analitzagui/plotsview2d.h>
#include <analitzaplot/plotsmodel.h>
#include <analitzaplot/plotsfactory.h>
#include <analitzaplot/functiongraph.h>

#include <QLabel>
#include <QGroupBox>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QFormLayout>
#include <KLocale>
#include <QtMmlWidget>

Dictionary::Dictionary(QWidget *p) : QWidget(p)
{
    m_ops=new OperatorsModel(this);
    m_sortProxy = new QSortFilterProxyModel(this);
    m_sortProxy->setSourceModel(m_ops);
    m_sortProxy->sort(2, Qt::AscendingOrder);
    m_sortProxy->setFilterKeyColumn(2);

    m_vars = new Analitza::Variables;

    QGroupBox *descr=new QGroupBox(i18n("Information"), this);
    descr->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    QFormLayout *descrLayo=new QFormLayout;
    QVBoxLayout *graphLayo=new QVBoxLayout(this);
    m_name=new QLabel(descr);
    m_descr=new QLabel(descr);
    m_sample=new QLabel(descr);
    m_example=new QLabel(descr);
    m_formula=new QtMmlWidget(descr);
//  m_formula->setFrameStyle(2);
    m_formula->setBaseFontPointSize(10);
    m_formula->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    m_funcs=new Analitza::PlotsModel(descr);
    m_graph=new Analitza::PlotsView2D(descr);
    m_graph->setTicksShown(0);
    m_graph->setModel(m_funcs);
    m_graph->setReadOnly(true);
    m_graph->setViewport(QRect(QPoint(-30, 7), QPoint(30, -7)));
    m_graph->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);

    m_name->setIndent(10);
    m_descr->setIndent(10);
    m_sample->setIndent(10);
    m_example->setIndent(10);

    m_example->setTextInteractionFlags(Qt::TextSelectableByMouse);

    descrLayo->addRow(i18n("<b>%1</b>", m_ops->headerData(0, Qt::Horizontal).toString()), m_name);
    descrLayo->addRow(i18n("<b>%1</b>", m_ops->headerData(1, Qt::Horizontal).toString()), m_descr);
    descrLayo->addRow(i18n("<b>%1</b>", m_ops->headerData(2, Qt::Horizontal).toString()), m_sample);
    descrLayo->addRow(i18n("<b>%1</b>", m_ops->headerData(3, Qt::Horizontal).toString()), m_example);
    descrLayo->addRow(i18n("<b>Formula</b>"), m_formula);
    descrLayo->setFieldGrowthPolicy(QFormLayout::ExpandingFieldsGrow);
    graphLayo->addWidget(descr);
//  graphLayo->addWidget(m_formula);
    graphLayo->addWidget(m_graph);
    descr->setLayout(descrLayo);

    m_funcs->clear();
    m_formula->setContent("<math />");
//  connect(m_list, SIGNAL(clicked(QModelIndex)), this, SLOT(activated(QModelIndex)));
}

Dictionary::~Dictionary()
{
    delete m_vars;
}

void Dictionary::activated(const QModelIndex& idx, const QModelIndex& prev)
{
    Q_UNUSED(prev);

    m_funcs->clear();
    if(idx.isValid()) {
        QModelIndex nameIdx, descriptionIdx, sampleIdx, exampleIdx;
        nameIdx = idx.sibling(idx.row(), 0);
        descriptionIdx = idx.sibling(idx.row(), 1);
        sampleIdx = idx.sibling(idx.row(), 2);
        exampleIdx = idx.sibling(idx.row(), 3);

        QString name=m_sortProxy->data(nameIdx).toString();
        QString description=m_sortProxy->data(descriptionIdx).toString();
        QString sample=m_sortProxy->data(sampleIdx).toString();
        QString example=m_sortProxy->data(exampleIdx).toString();

        Analitza::Expression e(example, false);

        m_name->setText(name);
        m_descr->setText(description);
        m_sample->setText(sample);
        m_example->setText(example);

        QString error;
        m_formula->setContent(e.toMathMLPresentation(), &error);
        if(!error.isEmpty())
            qDebug() << "dict formula error: " << error << e.toMathMLPresentation();

        m_funcs->addPlot(Analitza::PlotsFactory::self()->requestPlot(e, Analitza::Dim2D, m_vars).create(QColor(0,150,0), "dict"));
    } else {
        QString error;
        m_name->setText(QString());
        m_descr->setText(QString());
        m_sample->setText(QString());
        m_example->setText(QString());
        m_formula->setContent("<math />", &error);
    }
}

void Dictionary::setFilter(const QString &filter)
{
    m_sortProxy->setFilterFixedString(filter);
}

#include "dictionary.moc"