// SPDX-License-Identifier: GPL-2.0+
/*******************************************************************************
 * QtMips - MIPS 32-bit Architecture Subset Simulator
 *
 * Implemented to support following courses:
 *
 *   B35APO - Computer Architectures
 *   https://cw.fel.cvut.cz/wiki/courses/b35apo
 *
 *   B4M35PAP - Advanced Computer Architectures
 *   https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start
 *
 * Copyright (c) 2017-2019 Karel Koci<cynerd@email.cz>
 * Copyright (c) 2019      Pavel Pisa <pisa@cmp.felk.cvut.cz>
 *
 * Faculty of Electrical Engineering (http://www.fel.cvut.cz)
 * Czech Technical University        (http://www.cvut.cz/)
 *
 * 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 "aboutdialog.h"

#include <QObject>
#include <QTabWidget>
#include <QVBoxLayout>
#include <QPlainTextEdit>
#include <QTextBrowser>
#include <QLabel>
#include <QPushButton>
#include <QApplication>
#include <QDebug>


AboutDialog::AboutDialog(QWidget *parent)
    : QDialog(parent)
{
  QLabel *lbl;

  setAttribute(Qt::WA_DeleteOnClose);
  setAttribute(Qt::WA_ShowModal);
  setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);

  setWindowTitle(tr("About Qt Mips"));

  all = new QVBoxLayout(this);

  QWidget *hbox = new QWidget();
  QHBoxLayout *hl = new QHBoxLayout(hbox);
  hl->setContentsMargins(0,0,0,0);

  all->addWidget(hbox);
 
  QWidget *vbox = new QWidget();
  QVBoxLayout *vl = new QVBoxLayout(vbox);
  //vl->setContentsMargins(0,0,0,0);
  hl->addWidget(vbox);

  QString versionText;
  versionText = "Version 0.7.4\n";

  vl->addWidget(new QLabel("<span style='font-size:x-large; font-weight:bold;'>Qt Mips - MIPS Architecture Simulator</span>"));
  lbl = new QLabel(versionText);
  lbl->setAlignment(Qt::AlignHCenter);
  lbl->setOpenExternalLinks(true);
  vl->addWidget(lbl);
  vl->addWidget(new QLabel("Copyright (C) 2017-2019 Karel Kočí "
                "<a href=\"mailto://cynerd@email.cz\">cynerd@email.cz</a><br/>"
                "Copyright (C) 2019 Pavel Píša "
                "<a href=\"mailto://pisa@cmp.felk.cvut.cz\">pisa@cmp.felk.cvut.cz</a>"));

  QString supportText;
  supportText =  "Home Page : <a href=\"https://github.com/cvut/QtMips\">https://github.com/cvut/QtMips</a><br/>"
                 "Implemented for<br/>"
                 "<a href=\"https://cw.fel.cvut.cz/wiki/courses/b35apo/start\">Computer Architectures</a><br/>"
                 "and<br/>"
                 "<a href=\"https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start\">Advanced Computer Achitectures</a><br/>"
                 "courses at<br/>"
                 "<a href=\"https://www.cvut.cz/\">Czech Technical University in Prague</a><br/>"
                 "<a href=\"https://www.fel.cvut.cz/\">Faculty of Electrical Engineering</a><br/>";

  QTextBrowser *supportBrowser = new QTextBrowser;
  supportBrowser->setOpenExternalLinks(true);
  supportBrowser->setHtml(supportText);
  vl->addWidget(supportBrowser);

  QString licenseText;
  licenseText = "This program is free software; you can redistribute it and/or\n"
                "modify it under the terms of the GNU General Public License\n"
                "as published by the Free Software Foundation; either version 2\n"
                "of the License, or (at your option) any later version.\n"
                "<br/>\n"
                "<br/>\n"
                "This program is distributed in the hope that it will be useful,\n"
                "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
                "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
                "GNU General Public License for more details.\n"
                "<br/>\n"
                "<br/>\n"
                "You should have received a copy of the GNU General Public License\n"
                "along with this program; if not, write to the Free Software\n"
                "Foundation, Inc., 51 Franklin Street, Fifth Floor,\n"
                "Boston, MA  02110-1301, USA.\n";

  QTextBrowser *licenseBrowser = new QTextBrowser;
  licenseBrowser->setOpenExternalLinks(true);
  licenseBrowser->setHtml(licenseText);
  vl->addWidget(licenseBrowser);

  QWidget *hbBtn = new QWidget();
  QHBoxLayout *hlBtn = new QHBoxLayout(hbBtn);
  hlBtn->setContentsMargins(0,0,0,0);
  vl->addWidget(hbBtn);

  QPushButton *okButton = new QPushButton(tr("&OK"), parent);
  okButton->setFocus();
  connect(okButton, SIGNAL(clicked()), this, SLOT(close()));
  hlBtn->addStretch();
  hlBtn->addWidget(okButton);

  setMinimumSize(450, 500);

  prevTab = 0; // first Tab is selected by default
}