/************************************************************************
 **
 **  @file   dialogeditwrongformula.cpp
 **  @author Roman Telezhynskyi <dismine(at)gmail.com>
 **  @date   29 5, 2014
 **
 **  @brief
 **  @copyright
 **  This source code is part of the Valentina project, a pattern making
 **  program, whose allow create and modeling patterns of clothing.
 **  Copyright (C) 2013-2015 Valentina project
 **  <https://gitlab.com/smart-pattern/valentina> All Rights Reserved.
 **
 **  Valentina 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 3 of the License, or
 **  (at your option) any later version.
 **
 **  Valentina 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 Valentina.  If not, see <http://www.gnu.org/licenses/>.
 **
 *************************************************************************/

#include "dialogeditwrongformula.h"

#include <QAbstractItemView>
#include <QApplication>
#include <QCheckBox>
#include <QCursor>
#include <QDialog>
#include <QFont>
#include <QHeaderView>
#include <QLabel>
#include <QMapIterator>
#include <QPlainTextEdit>
#include <QPushButton>
#include <QRadioButton>
#include <QSharedPointer>
#include <QShowEvent>
#include <QSize>
#include <QTableWidget>
#include <QTableWidgetItem>
#include <QTextCursor>
#include <QTimer>
#include <QToolButton>
#include <QWidget>
#include <new>

#include "../tools/dialogtool.h"
#include "../vformat/knownmeasurements/vknownmeasurement.h"
#include "../vformat/knownmeasurements/vknownmeasurements.h"
#include "../vformat/knownmeasurements/vknownmeasurementsdatabase.h"
#include "../vmisc/def.h"
#include "../vmisc/theme/vtheme.h"
#include "../vmisc/vabstractapplication.h"
#include "../vmisc/vcommonsettings.h"
#include "../vpatterndb/variables/varcradius.h"
#include "../vpatterndb/variables/vcurveangle.h"
#include "../vpatterndb/variables/vcurveclength.h"
#include "../vpatterndb/variables/vcurvelength.h"
#include "../vpatterndb/variables/vincrement.h"
#include "../vpatterndb/variables/vlineangle.h"
#include "../vpatterndb/variables/vlinelength.h"
#include "../vpatterndb/variables/vmeasurement.h"
#include "../vpatterndb/variables/vpiecearea.h"
#include "../vpatterndb/vcontainer.h"
#include "../vpatterndb/vtranslatevars.h"
#include "ui_dialogeditwrongformula.h"

template <class T> class QSharedPointer;

enum
{
    ColumnName = 0,
    ColumnFullName
};

//---------------------------------------------------------------------------------------------------------------------
DialogEditWrongFormula::DialogEditWrongFormula(const VContainer *data, quint32 toolId, QWidget *parent)
  : QDialog(parent),
    ui(new Ui::DialogEditWrongFormula),
    m_data(data),
    m_toolId(toolId),
    timerFormula(new QTimer(this))
{
    SCASSERT(data != nullptr)

    ui->setupUi(this);

    ui->radioButtonPieceArea->setVisible(false);

    timerFormula->setSingleShot(true);
    connect(timerFormula, &QTimer::timeout, this, &DialogEditWrongFormula::EvalFormula);

#if defined(Q_OS_MAC)
    setWindowFlags(Qt::Window);
#endif

    InitVariables();
    this->formulaBaseHeight = ui->plainTextEditFormula->height();
    ui->plainTextEditFormula->installEventFilter(this);
    ui->filterFormulaInputs->setClearButtonEnabled(true);

    connect(ui->filterFormulaInputs, &QLineEdit::textChanged, this, &DialogEditWrongFormula::FilterVariablesEdited);

    QPushButton *bOk = ui->buttonBox->button(QDialogButtonBox::Ok);
    SCASSERT(bOk != nullptr)
    connect(bOk, &QPushButton::clicked, this, &DialogEditWrongFormula::DialogAccepted);

    QPushButton *bCancel = ui->buttonBox->button(QDialogButtonBox::Cancel);
    SCASSERT(bCancel != nullptr)
    connect(bCancel, &QPushButton::clicked, this, &DialogEditWrongFormula::DialogRejected);

    VAbstractApplication::VApp()->Settings()->GetOsSeparator() ? setLocale(QLocale()) : setLocale(QLocale::c());

    connect(ui->toolButtonPutHere, &QPushButton::clicked, this, &DialogEditWrongFormula::PutHere);
    connect(ui->tableWidget, &QTableWidget::itemDoubleClicked, this, &DialogEditWrongFormula::PutVal);

    connect(ui->plainTextEditFormula, &QPlainTextEdit::textChanged, this,
            [this]() { timerFormula->start(formulaTimerTimeout); });

    // Disable Qt::WaitCursor
#ifndef QT_NO_CURSOR
    if (QGuiApplication::overrideCursor() != nullptr)
    {
        if (QGuiApplication::overrideCursor()->shape() == Qt::WaitCursor)
        {
            restoreCursor = true;
            QGuiApplication::restoreOverrideCursor();
        }
    }
#endif
    ui->tableWidget->setColumnCount(2);
    ui->tableWidget->setEditTriggers(QTableWidget::NoEditTriggers);
    ui->tableWidget->verticalHeader()->hide();
    ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);
}

//---------------------------------------------------------------------------------------------------------------------
DialogEditWrongFormula::~DialogEditWrongFormula()
{
#ifndef QT_NO_CURSOR
    if (restoreCursor)
    {
        QGuiApplication::setOverrideCursor(Qt::WaitCursor);
    }
#endif
    delete ui;
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::DialogAccepted()
{
    formula = ui->plainTextEditFormula->toPlainText();
    emit DialogClosed(QDialog::Accepted);
    emit accepted();
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::DialogRejected()
{
    emit DialogClosed(QDialog::Rejected);
    emit rejected();
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::EvalFormula()
{
    FormulaData formulaData;
    formulaData.formula = ui->plainTextEditFormula->toPlainText();
    formulaData.variables = m_data->DataVariables();
    formulaData.labelEditFormula = ui->labelEditFormula;
    formulaData.labelResult = ui->labelResultCalculation;
    formulaData.postfix = postfix;
    formulaData.checkZero = checkZero;
    formulaData.checkLessThanZero = checkLessThanZero;

    Eval(formulaData, flagFormula);
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief ValChanged show description when current variable changed
 * @param row number of row
 */
void DialogEditWrongFormula::ValChanged(int row)
{
    if (ui->tableWidget->rowCount() == 0)
    {
        ui->labelDescription->setText(QString());
        return;
    }
    QTableWidgetItem *item = ui->tableWidget->item(row, ColumnName);
    const QString name = VAbstractApplication::VApp()->TrVars()->VarFromUser(item->text());

    try
    {
        if (ui->radioButtonStandardTable->isChecked())
        {
            SetMeasurementDescription(item, name);
        }
        else if (ui->radioButtonIncrements->isChecked() || ui->radioButtonPC->isChecked())
        {
            const QSharedPointer<VIncrement> incr = m_data->GetVariable<VIncrement>(name);
            SetDescription(item->text(), *incr->GetValue(), incr->IsSpecialUnits(), incr->GetDescription());
        }
        else if (ui->radioButtonLengthLine->isChecked())
        {
            const bool specialUnits = false;
            SetDescription(item->text(), *m_data->GetVariable<VLengthLine>(name)->GetValue(), specialUnits,
                           tr("Line length"));
        }
        else if (ui->radioButtonLengthSpline->isChecked())
        {
            const bool specialUnits = false;
            SetDescription(item->text(), *m_data->GetVariable<VCurveLength>(name)->GetValue(), specialUnits,
                           tr("Curve length"));
        }
        else if (ui->radioButtonAngleLine->isChecked())
        {
            const bool specialUnits = true;
            SetDescription(item->text(), *m_data->GetVariable<VLineAngle>(name)->GetValue(), specialUnits,
                           tr("Line Angle"));
        }
        else if (ui->radioButtonRadiusesArcs->isChecked())
        {
            const bool specialUnits = false;
            SetDescription(item->text(), *m_data->GetVariable<VArcRadius>(name)->GetValue(), specialUnits,
                           tr("Arc radius"));
        }
        else if (ui->radioButtonAnglesCurves->isChecked())
        {
            const bool specialUnits = true;
            SetDescription(item->text(), *m_data->GetVariable<VCurveAngle>(name)->GetValue(), specialUnits,
                           tr("Curve angle"));
        }
        else if (ui->radioButtonCLength->isChecked())
        {
            const bool specialUnits = false;
            SetDescription(item->text(), *m_data->GetVariable<VCurveCLength>(name)->GetValue(), specialUnits,
                           tr("Length to control point"));
        }
        else if (ui->radioButtonPieceArea->isChecked())
        {
            SetPieceAreaDescription(item, name);
        }
        else if (ui->radioButtonFunctions->isChecked())
        {
            ui->labelDescription->setText(item->toolTip());
        }
    }
    catch (const VExceptionBadId &e)
    {
        qCritical() << qUtf8Printable(e.ErrorMessage());
    }
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief PutHere put variable into edit
 */
void DialogEditWrongFormula::PutHere()
{
    QTableWidgetItem *item = ui->tableWidget->currentItem();
    if (item != nullptr)
    {
        PutVal(item);
        ui->plainTextEditFormula->setFocus();
    }
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief PutVal put variable into edit
 * @param item chosen item of table widget
 */
void DialogEditWrongFormula::PutVal(QTableWidgetItem *item)
{
    SCASSERT(item != nullptr)
    QTableWidgetItem *valItem = ui->tableWidget->item(item->row(), ColumnName);
    QTextCursor cursor = ui->plainTextEditFormula->textCursor();
    if (ui->radioButtonFunctions->isChecked())
    {
        QString const function = valItem->data(Qt::UserRole).toString();
        const VTranslateVars *trVars = VAbstractApplication::VApp()->TrVars();
        const QMap<QString, QString> functionsArguments = trVars->GetFunctionsArguments();
        cursor.insertText(valItem->text() + functionsArguments.value(function));
    }
    else
    {
        cursor.insertText(valItem->text());
    }

    ui->plainTextEditFormula->setTextCursor(cursor);
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief Measurements show in list measurements
 */
void DialogEditWrongFormula::Measurements()
{
    ui->checkBoxHideEmpty->setEnabled(true);

    QList<QSharedPointer<VMeasurement>> vars = m_data->DataMeasurements().values();
    std::stable_sort(vars.begin(), vars.end(),
                     [](const QSharedPointer<VMeasurement> &obj1, const QSharedPointer<VMeasurement> &obj2)
                     { return obj1->Index() < obj2->Index(); });

    ShowMeasurements(vars);
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief LengthLines show in list lengths of lines variables
 */
void DialogEditWrongFormula::LengthLines()
{
    ui->checkBoxHideEmpty->setEnabled(false);
    ShowVariable(m_data->DataLengthLines().values());
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::RadiusArcs()
{
    ui->checkBoxHideEmpty->setEnabled(false);
    ShowVariable(m_data->DataRadiusesArcs().values());
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::AnglesCurves()
{
    ui->checkBoxHideEmpty->setEnabled(false);
    ShowVariable(m_data->DataAnglesCurves().values());
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief LengthCurves show in list lengths of curves variables
 */
void DialogEditWrongFormula::LengthCurves()
{
    ui->checkBoxHideEmpty->setEnabled(false);
    ShowVariable(m_data->DataLengthCurves().values());
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::CurvesCLength()
{
    ui->checkBoxHideEmpty->setEnabled(false);
    ShowVariable(m_data->DataCurvesCLength().values());
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::AngleLines()
{
    ui->checkBoxHideEmpty->setEnabled(false);
    ShowVariable(m_data->DataAngleLines().values());
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief Increments show in list increment variables
 */
void DialogEditWrongFormula::Increments()
{
    ShowIncrementsInPreviewCalculation(false);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::PreviewCalculations()
{
    ShowIncrementsInPreviewCalculation(true);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::PieceArea()
{
    ui->checkBoxHideEmpty->setEnabled(false);
    ShowVariable(m_data->DataPieceArea().values());
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief Functions show in list functions
 */
void DialogEditWrongFormula::Functions()
{
    ui->checkBoxHideEmpty->setEnabled(false);
    ShowFunctions();
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::closeEvent(QCloseEvent *event)
{
    ui->plainTextEditFormula->blockSignals(true);
    QDialog::closeEvent(event);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::showEvent(QShowEvent *event)
{
    QDialog::showEvent(event);
    if (event->spontaneous())
    {
        return;
    }

    if (m_isInitialized)
    {
        return;
    }
    // do your init stuff here

    const QSize sz = VAbstractApplication::VApp()->Settings()->GetFormulaWizardDialogSize();
    if (not sz.isEmpty())
    {
        resize(sz);
    }

    CheckState();

    m_isInitialized = true; // first show windows are held
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::resizeEvent(QResizeEvent *event)
{
    // remember the size for the next time this dialog is opened, but only
    // if widget was already initialized, which rules out the resize at
    // dialog creating, which would
    if (m_isInitialized)
    {
        VAbstractApplication::VApp()->Settings()->SetFormulaWizardDialogSize(size());
    }
    QDialog::resizeEvent(event);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::changeEvent(QEvent *event)
{
    if (event->type() == QEvent::LanguageChange)
    {
        ui->retranslateUi(this);
    }

    if (event->type() == QEvent::PaletteChange)
    {
        InitIcons();
        InitDialogButtonBoxIcons(ui->buttonBox);
    }

    // remember to call base class implementation
    QDialog::changeEvent(event);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::CheckState()
{
    QPushButton *bOk = ui->buttonBox->button(QDialogButtonBox::Ok);
    SCASSERT(bOk != nullptr)
    bOk->setEnabled(IsValid());
    // In case dialog hasn't apply button
    QPushButton *bApply = ui->buttonBox->button(QDialogButtonBox::Apply);
    if (bApply != nullptr)
    {
        bApply->setEnabled(bOk->isEnabled());
    }
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::SetFormula(const QString &value)
{
    formula = VAbstractApplication::VApp()->TrVars()->FormulaToUser(
        value, VAbstractApplication::VApp()->Settings()->GetOsSeparator());
    ui->plainTextEditFormula->setPlainText(formula);
    MoveCursorToEnd(ui->plainTextEditFormula);
    ui->plainTextEditFormula->selectAll();
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::setCheckZero(bool value)
{
    checkZero = value;
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::setCheckLessThanZero(bool value)
{
    checkLessThanZero = value;
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::setPostfix(const QString &value)
{
    postfix = value;
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::SetMeasurementsMode()
{
    ui->radioButtonIncrements->setDisabled(true);
    SetIncrementsMode();
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::SetIncrementsMode()
{
    ui->radioButtonPC->setDisabled(true);
    SetPreviewCalculationsMode();
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::SetPreviewCalculationsMode()
{
    ui->radioButtonLengthLine->setDisabled(true);
    ui->radioButtonLengthSpline->setDisabled(true);
    ui->radioButtonAngleLine->setDisabled(true);
    ui->radioButtonRadiusesArcs->setDisabled(true);
    ui->radioButtonAnglesCurves->setDisabled(true);
    ui->radioButtonCLength->setDisabled(true);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::ShowPieceArea(bool show) const
{
    ui->radioButtonPieceArea->setVisible(show);
}

//---------------------------------------------------------------------------------------------------------------------
auto DialogEditWrongFormula::GetFormula() const -> QString
{
    return VTranslateVars::TryFormulaFromUser(formula, VAbstractApplication::VApp()->Settings()->GetOsSeparator());
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::InitVariables()
{
    connect(ui->tableWidget, &QTableWidget::currentCellChanged, this, &DialogEditWrongFormula::ValChanged);

    ui->radioButtonStandardTable->setChecked(true);
    Measurements();

    // clear text filter every time when new radio button selected
    auto ClearFilterFormulaInputs = [this]() { ui->filterFormulaInputs->clear(); };

    connect(ui->radioButtonStandardTable, &QRadioButton::clicked, this, &DialogEditWrongFormula::Measurements);
    connect(ui->radioButtonStandardTable, &QRadioButton::clicked, this, ClearFilterFormulaInputs);

    connect(ui->radioButtonIncrements, &QRadioButton::clicked, this, &DialogEditWrongFormula::Increments);
    connect(ui->radioButtonIncrements, &QRadioButton::clicked, this, ClearFilterFormulaInputs);

    connect(ui->radioButtonPC, &QRadioButton::clicked, this, &DialogEditWrongFormula::PreviewCalculations);
    connect(ui->radioButtonPC, &QRadioButton::clicked, this, ClearFilterFormulaInputs);

    connect(ui->radioButtonLengthLine, &QRadioButton::clicked, this, &DialogEditWrongFormula::LengthLines);
    connect(ui->radioButtonLengthLine, &QRadioButton::clicked, this, ClearFilterFormulaInputs);

    connect(ui->radioButtonLengthSpline, &QRadioButton::clicked, this, &DialogEditWrongFormula::LengthCurves);
    connect(ui->radioButtonLengthSpline, &QRadioButton::clicked, this, ClearFilterFormulaInputs);

    connect(ui->radioButtonAngleLine, &QRadioButton::clicked, this, &DialogEditWrongFormula::AngleLines);
    connect(ui->radioButtonAngleLine, &QRadioButton::clicked, this, ClearFilterFormulaInputs);

    connect(ui->radioButtonRadiusesArcs, &QRadioButton::clicked, this, &DialogEditWrongFormula::RadiusArcs);
    connect(ui->radioButtonRadiusesArcs, &QRadioButton::clicked, this, ClearFilterFormulaInputs);

    connect(ui->radioButtonAnglesCurves, &QRadioButton::clicked, this, &DialogEditWrongFormula::AnglesCurves);
    connect(ui->radioButtonAnglesCurves, &QRadioButton::clicked, this, ClearFilterFormulaInputs);

    connect(ui->radioButtonCLength, &QRadioButton::clicked, this, &DialogEditWrongFormula::CurvesCLength);
    connect(ui->radioButtonCLength, &QRadioButton::clicked, this, ClearFilterFormulaInputs);

    connect(ui->radioButtonPieceArea, &QRadioButton::clicked, this, &DialogEditWrongFormula::PieceArea);
    connect(ui->radioButtonPieceArea, &QRadioButton::clicked, this, ClearFilterFormulaInputs);

    connect(ui->radioButtonFunctions, &QRadioButton::clicked, this, &DialogEditWrongFormula::Functions);
    connect(ui->radioButtonFunctions, &QRadioButton::clicked, this, ClearFilterFormulaInputs);

    connect(ui->checkBoxHideEmpty, &QCheckBox::stateChanged, this, &DialogEditWrongFormula::Measurements);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::SetDescription(const QString &name, qreal value, bool specialUnits,
                                            const QString &description, bool square)
{
    QString unitName = postfix;
    if (not specialUnits && square)
    {
        unitName += QStringLiteral("²");
    }

    const QString unit = specialUnits ? degreeSymbol : ' ' + unitName;
    const auto desc = QStringLiteral("%1(%2%3) - %4").arg(name).arg(value).arg(unit, description);
    ui->labelDescription->setText(desc);
}

//---------------------------------------------------------------------------------------------------------------------
auto DialogEditWrongFormula::Eval(const FormulaData &formulaData, bool &flag) -> qreal
{
    const qreal result = EvalToolFormula(this, formulaData, flag);
    CheckState(); // Disable Ok and Apply buttons if something wrong.
    return result;
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::InitIcons()
{
    const auto resource = QStringLiteral("icon");

    ui->label->setPixmap(VTheme::GetPixmapResource(resource, QStringLiteral("24x24/equal.png")));
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief ShowVariable show variables in list
 * @param vars container with variables
 */
template <class T> void DialogEditWrongFormula::ShowVariable(const QList<T> &vars)
{
    ui->tableWidget->blockSignals(true);
    ui->tableWidget->clearContents();
    ui->tableWidget->setRowCount(0);
    ui->tableWidget->setColumnHidden(ColumnFullName, true);
    ui->labelDescription->setText(QString());

    const VTranslateVars *trVars = VAbstractApplication::VApp()->TrVars();

    for (const auto &var : vars)
    {
        if (ui->checkBoxHideEmpty->isEnabled() && ui->checkBoxHideEmpty->isChecked() && var->IsNotUsed())
        {
            continue; // skip this measurement
        }

        if (!var->Filter(m_toolId))
        { // If we create this variable don't show
            ui->tableWidget->setRowCount(ui->tableWidget->rowCount() + 1);
            auto *item = new QTableWidgetItem(trVars->VarToUser(var->GetName()));
            QFont font = item->font();
            font.setBold(true);
            item->setFont(font);
            ui->tableWidget->setItem(ui->tableWidget->rowCount() - 1, ColumnName, item);
        }
    }

    ui->tableWidget->blockSignals(false);
    ui->tableWidget->selectRow(0);
    ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief ShowMeasurements show measurements in table
 * @param vars container with measurements
 */
void DialogEditWrongFormula::ShowMeasurements(const QList<QSharedPointer<VMeasurement>> &vars)
{
    ui->tableWidget->blockSignals(true);
    ui->tableWidget->clearContents();
    ui->tableWidget->setRowCount(0);
    ui->tableWidget->setColumnHidden(ColumnFullName, false);
    ui->labelDescription->setText(QString());

    for (const auto &var : vars)
    {
        if (ui->checkBoxHideEmpty->isEnabled() && ui->checkBoxHideEmpty->isChecked() && var->IsNotUsed())
        {
            continue; // skip this measurement
        }

        if (not var->Filter(m_toolId))
        { // If we create this variable don't show
            ui->tableWidget->setRowCount(ui->tableWidget->rowCount() + 1);
            auto *itemName = new QTableWidgetItem(var->GetName());
            QFont fontName = itemName->font();
            fontName.setBold(true);
            itemName->setFont(fontName);
            itemName->setToolTip(itemName->text());

            auto *itemFullName = new QTableWidgetItem();
            QFont fontFullName = itemName->font();
            fontFullName.setBold(true);
            itemFullName->setFont(fontFullName);
            if (var->IsCustom())
            {
                itemFullName->setText(var->GetGuiText());
            }
            else
            {
                itemFullName->setText(QString());
                if (VKnownMeasurementsDatabase *db = VAbstractApplication::VApp()->KnownMeasurementsDatabase())
                {
                    VKnownMeasurements const known = db->KnownMeasurements(var->GetKnownMeasurementsId());
                    if (known.IsValid())
                    {
                        itemFullName->setText(known.Measurement(var->GetName()).fullName);
                    }
                }
            }

            itemFullName->setToolTip(itemFullName->text());
            ui->tableWidget->setItem(ui->tableWidget->rowCount() - 1, ColumnName, itemName);
            ui->tableWidget->setItem(ui->tableWidget->rowCount() - 1, ColumnFullName, itemFullName);
        }
    }

    ui->tableWidget->blockSignals(false);
    ui->tableWidget->selectRow(0);
    ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief ShowFunctions show functions in list
 */
void DialogEditWrongFormula::ShowFunctions()
{
    ui->tableWidget->blockSignals(true);
    ui->tableWidget->clearContents();
    ui->tableWidget->setRowCount(0);
    ui->tableWidget->setColumnHidden(ColumnFullName, true);
    ui->labelDescription->setText(QString());

    VCommonSettings *settings = VAbstractApplication::VApp()->Settings();
    const VTranslateVars *trVars = VAbstractApplication::VApp()->TrVars();
    const QMap<QString, qmu::QmuTranslation> functionsDescriptions = trVars->GetFunctionsDescriptions();
    const QMap<QString, qmu::QmuTranslation> functions = trVars->GetFunctions();
    QMap<QString, qmu::QmuTranslation>::const_iterator i = functions.constBegin();
    while (i != functions.constEnd())
    {
        ui->tableWidget->setRowCount(ui->tableWidget->rowCount() + 1);

        QString const name = (!settings->IsTranslateFormula()
                                  ? i.value().getMsourceText()
                                  : i.value().translate(VAbstractApplication::VApp()->Settings()->GetLocale()));

        auto *item = new QTableWidgetItem(name);
        item->setData(Qt::UserRole, i.key());
        QFont font = item->font();
        font.setBold(true);
        item->setFont(font);
        ui->tableWidget->setItem(ui->tableWidget->rowCount() - 1, ColumnName, item);

        if (functionsDescriptions.contains(i.key()))
        {
            QString const description =
                (!settings->IsTranslateFormula() ? functionsDescriptions.value(i.key()).getMsourceText()
                                                 : functionsDescriptions.value(i.key()).translate(
                                                       VAbstractApplication::VApp()->Settings()->GetLocale()));
            item->setToolTip(description);
        }
        else
        {
            item->setToolTip(i.value().getMdisambiguation());
        }
        ++i;
    }

    ui->tableWidget->blockSignals(false);
    ui->tableWidget->selectRow(0);
    ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::ShowIncrementsInPreviewCalculation(bool show)
{
    ui->checkBoxHideEmpty->setEnabled(false);

    QMap<QString, QSharedPointer<VIncrement>> increments;

    const QMap<QString, QSharedPointer<VIncrement>> list = m_data->DataIncrements();
    QMap<QString, QSharedPointer<VIncrement>>::const_iterator i = list.constBegin();
    while (i != list.constEnd())
    {
        if (i.value()->IsPreviewCalculation() == show)
        {
            increments.insert(i.key(), i.value());
        }
        ++i;
    }

    QList<QSharedPointer<VIncrement>> vars = increments.values();
    std::stable_sort(vars.begin(), vars.end(),
                     [](const QSharedPointer<VIncrement> &obj1, const QSharedPointer<VIncrement> &obj2)
                     { return obj1->GetIndex() < obj2->GetIndex(); });

    ShowVariable(vars);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::SetMeasurementDescription(QTableWidgetItem *item, const QString &name)
{
    const QSharedPointer<VMeasurement> stable = m_data->GetVariable<VMeasurement>(name);

    QString description;

    if (!stable->IsCustom())
    {
        if (VKnownMeasurementsDatabase *db = VAbstractApplication::VApp()->KnownMeasurementsDatabase())
        {
            VKnownMeasurements const known = db->KnownMeasurements(stable->GetKnownMeasurementsId());
            if (known.IsValid())
            {
                description = known.Measurement(stable->GetName()).description;
            }
        }
    }
    else
    {
        description = stable->GetDescription();
    }

    SetDescription(item->text(), *stable->GetValue(), stable->IsSpecialUnits(), description);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::SetPieceAreaDescription(QTableWidgetItem *item, const QString &name)
{
    const bool specialUnits = false;
    const QSharedPointer<VPieceArea> var = m_data->GetVariable<VPieceArea>(name);
    QString description = tr("Area of piece");

    try
    {
        VPiece const piece = m_data->GetPiece(var->GetPieceId());
        QString const name = piece.GetName();
        if (not name.isEmpty())
        {
            description += QStringLiteral(" '%1'").arg(piece.GetName());
        }
    }
    catch (const VExceptionBadId &)
    {
        // do nothing
    }

    SetDescription(item->text(), *var->GetValue(), specialUnits, description, true);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogEditWrongFormula::FilterVariablesEdited(const QString &filter)
{
    ui->tableWidget->blockSignals(true);

    // If filter is empty findItems() for unknown reason returns nullptr items.
    // See issue #586. https://bitbucket.org/dismine/valentina/issues/586/valentina-crashes-if-clear-input-filter
    if (filter.isEmpty())
    {
        // show all rows
        for (auto i = 0; i < ui->tableWidget->rowCount(); ++i)
        {
            ui->tableWidget->showRow(i);
        }
    }
    else
    {
        // hide all rows
        for (auto i = 0; i < ui->tableWidget->rowCount(); i++)
        {
            ui->tableWidget->hideRow(i);
        }

        // show rows with matched filter
        const QList<QTableWidgetItem *> items = ui->tableWidget->findItems(filter, Qt::MatchContains);
        for (auto *item : items)
        {
            // If filter is empty findItems() for unknown reason returns nullptr
            // items.
            if (item)
            {
                ui->tableWidget->showRow(item->row());
            }
        }
    }

    ui->tableWidget->blockSignals(false);
}