File indexing completed on 2024-04-21 03:41:34

 /*************************************************************************************
  *  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 "varedit.h"
 #include <analitza/analyzer.h>
 #include <analitza/expression.h>
 #include <analitza/variables.h>
 #include <analitzagui/expressionedit.h>
 
 #include <QDialogButtonBox>
 #include <QPushButton>
 #include <QVBoxLayout>
 #include <klocalizedstring.h>
 
 VarEdit::VarEdit(QWidget *parent, bool modal)
     : QDialog(parent)
     , vars(nullptr)
     , m_correct(false)
 {
     setWindowTitle(i18n("Add/Edit a variable"));
     setModal(modal);
 
     m_buttonBox = new QDialogButtonBox(this);
     m_buttonBox->setStandardButtons(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
     m_removeBtn = m_buttonBox->addButton(i18n("Remove Variable"), QDialogButtonBox::DestructiveRole);
     m_removeBtn->setIcon(QIcon::fromTheme(QStringLiteral("edit-table-delete-row")));
 
     connect(m_removeBtn, &QAbstractButton::clicked, this, &VarEdit::removeVariable);
 
     connect(m_buttonBox, &QDialogButtonBox::accepted, this, &VarEdit::accept);
     connect(m_buttonBox, &QDialogButtonBox::rejected, this, &VarEdit::reject);
 
     m_exp = new Analitza::ExpressionEdit(this);
     connect(m_exp, &QPlainTextEdit::textChanged, this, &VarEdit::edit);
     connect(m_exp, &Analitza::ExpressionEdit::returnPressed, this, &VarEdit::ok);
 
     m_valid = new QLabel(this);
 
     QVBoxLayout *topLayout = new QVBoxLayout(this);
     topLayout->addWidget(m_exp);
     topLayout->addWidget(m_valid);
     topLayout->addWidget(m_buttonBox);
 
     m_exp->setFocus();
 }
 
 void VarEdit::setName(const QString &newVar)
 {
     m_var = newVar;
     setWindowTitle(i18n("Edit '%1' value", newVar));
     if (!vars)
         m_exp->setText(i18n("not available"));
     else {
         m_exp->setExpression(Analitza::Expression(vars->value(newVar)->copy()));
     }
     m_removeBtn->setEnabled(vars && canRemove(newVar));
 }
 
 bool VarEdit::canRemove(const QString &name) const
 {
     QHash<QString, Analitza::Object *>::const_iterator it = vars->constBegin(), itEnd = vars->constEnd();
     for (; it != itEnd; ++it) {
         QStringList deps = AnalitzaUtils::dependencies(*it, QStringList());
         if (deps.contains(name)) {
             return false;
         }
     }
     return true;
 }
 
 Analitza::Expression VarEdit::val()
 {
     Analitza::Expression val;
     Analitza::Analyzer a(vars);
 
     a.setExpression(m_exp->expression());
 
     if (a.isCorrect()) {
         a.simplify();
         val = a.expression();
     }
 
     m_correct = a.isCorrect();
     if (m_correct) {
         m_valid->setText(i18n("<b style='color:#090'>%1 := %2</b>", m_var, val.toString()));
         m_valid->setToolTip(QString());
     } else {
         m_valid->setText(i18n("<b style='color:red'>WRONG</b>"));
         m_valid->setToolTip(a.errors().join(QStringLiteral("\n")));
     }
     m_buttonBox->button(QDialogButtonBox::Ok)->setEnabled(m_correct);
     m_exp->setCorrect(m_correct);
 
     return val;
 }
 
 void VarEdit::edit()
 {
     val();
 }
 
 void VarEdit::ok()
 {
     if (m_correct)
         accept();
 }
 
 void VarEdit::setAnalitza(Analitza::Analyzer *na)
 {
     vars = na->variables();
     m_exp->setAnalitza(na);
 }
 
 void VarEdit::removeVariable()
 {
     vars->remove(m_var);
     close();
 }