PGetFunctionsBlockDialog.cpp

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/****************************************************************************
 
  PGetFunctionsBlockDialog.cpp
 
  Author: Andreas Suter
  e-mail: andreas.suter@psi.ch
 
*****************************************************************************/
 
/***************************************************************************
 *   Copyright (C) 2009-2026 by Andreas Suter                              *
 *   andreas.suter@psi.ch                                                  *
 *                                                                         *
 *   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.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

 
#include <QTextEdit>
#include <QLineEdit>
#include <QMessageBox>
#include <QRegularExpression>
#include <QEvent>
#include <QDesktopServices>
#include <QUrl>
 
#include <QtDebug>
 
#include "PGetFunctionsBlockDialog.h"
 
//----------------------------------------------------------------------------------------------------
PGetFunctionsBlockDialog::PGetFunctionsBlockDialog(const QString helpUrl) : fHelpUrl(helpUrl)
{
  setupUi(this);
 
  setModal(true);
 
  fFunctionInput_lineEdit->setFocus();
}
 
//----------------------------------------------------------------------------------------------------
void PGetFunctionsBlockDialog::addFunction()
{
  QString str = fFunctionInput_lineEdit->text();
 
  if (str.isEmpty())
    return;
 
  // validation
 
  // check that the function string starts with 'fun'
  if (!str.trimmed().startsWith("fun")) {
    QMessageBox::critical(this, "addFunction",
                          "a function has to start with 'funX' (X a number).\nNeeds to be fixed.",
                          QMessageBox::Ok, QMessageBox::NoButton);
    return;
  }
 
  // check if function string contains 'funX ='
  if (str.indexOf( QRegularExpression("fun\\d+\\s*=") ) == -1) {
    QMessageBox::critical(this, "addFunction",
                          "a function has to start with 'funX =' (X a positive number).\nNeeds to be fixed.",
                          QMessageBox::Ok, QMessageBox::NoButton);
    return;
  }
 
  // check if function string contains more than one 'funX'
  if (str.trimmed().lastIndexOf("fun", -1, Qt::CaseInsensitive) > 0) {
    QMessageBox::critical(this, "addFunction",
                          "a function cannot contain more than one function,\ni.e. fun2 = fun1 + par1 is not OK.",
                          QMessageBox::Ok, QMessageBox::NoButton);
    return;
  }
 
  // add to Functions block
  fFunctionBlock_plainTextEdit->appendPlainText(str);
 
  // clear functions input text
  fFunctionInput_lineEdit->clear();
}
 
//----------------------------------------------------------------------------------------------------
void PGetFunctionsBlockDialog::helpContent()
{
  if (fHelpUrl.isEmpty()) {
    QMessageBox::information(this, "INFO", "Will eventually show a help window");
  } else {
    bool ok = QDesktopServices::openUrl(QUrl(fHelpUrl, QUrl::TolerantMode));
    if (!ok) {
      QString msg = QString("<p>Sorry: Couldn't open default web-browser for the help.<br>Please try: <a href=\"%1\">musrfit docu</a> in your web-browser.").arg(fHelpUrl);
      QMessageBox::critical( nullptr, tr("FATAL ERROR"), msg, QMessageBox::Close );
    }
  }
}
 
//----------------------------------------------------------------------------------------------------
// END
//----------------------------------------------------------------------------------------------------