/*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * 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; version 2 of the License

 *

 * 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 <QGridLayout>

#include <QLabel>

#include <QList>

#include <QUrl>

#include <QRegExp>

#include <QNetworkAccessManager>

#include <QNetworkRequest>

#include <QMessageBox>

#include <QNetworkReply>

#include <QDebug>

#include "hwconsts.h"

#include "SDLInteraction.h"

#include "SDL.h"

#include "SDL_version.h"

#include "physfs.h"

#ifdef VIDEOREC

extern "C"

{

#include "libavutil/avutil.h"

}

#endif

#include "about.h"

About::About(QWidget * parent) :

    QWidget(parent)

{

    QGridLayout *mainLayout = new QGridLayout(this);

    QLabel *imageLabel = new QLabel;

    QImage image(":/res/Hedgehog.png");

    imageLabel->setPixmap(QPixmap::fromImage(image));

    imageLabel->setScaledContents(true);

    imageLabel->setMinimumWidth(2.8);

    imageLabel->setMaximumWidth(280);

    imageLabel->setMinimumHeight(30);

    imageLabel->setMaximumHeight(300);

    mainLayout->addWidget(imageLabel, 0, 0, 2, 1);

    QLabel *lbl1 = new QLabel(this);

    lbl1->setOpenExternalLinks(true);

    lbl1->setText(

        "<style type=\"text/css\">"

        "a { color: #ffcc00; }"

//            "a:hover { color: yellow; }"

        "</style>"

        "<div align=\"center\"><h1>Hedgewars</h1>"

        "<h3>" + QLabel::tr("Version") + " " + *cVersionString + "</h3>"

        "<p><a href=\"http://www.hedgewars.org/\">http://www.hedgewars.org/</a></p><br>" +

        QLabel::tr("This program is distributed under the GNU General Public License v2") +

        "</div>"

    );

    lbl1->setWordWrap(true);

    mainLayout->addWidget(lbl1, 0, 1);

    QString html;

    QFile file(":/res/html/about.html");

    if(!file.open(QIODevice::ReadOnly))

        QMessageBox::information(0, "Error loading about page", file.errorString());

    QTextStream in(&file);

    while(!in.atEnd())

        html.append(in.readLine());

    file.close();

    /* Get information */

    QString compilerText, compilerOpen, compilerClose;

    #ifdef __GNUC__

        compilerText = "GCC " + QString(__VERSION__) + "\n";

        compilerOpen = "<a href=\"http://gcc.gnu.org\">";

        compilerClose = "</a>";

    #else

        compilerText = "Unknown\n";

        compilerOpen = compilerClose = "";

    #endif

    /* Add information */

    html.replace("%COMPILER_A_OPEN%", compilerOpen);

    html.replace("%COMPILER_A_CLOSE%", compilerClose);

    html.replace("%COMPILER%", compilerText);

    html.replace("%SDL%", QString("version: %1.%2.%3")

        .arg(SDL_MAJOR_VERSION)

        .arg(SDL_MINOR_VERSION)

        .arg(SDL_PATCHLEVEL));

    html.replace("%QT%", QT_VERSION_STR);

#ifdef VIDEOREC

    html.replace("%LIBAV%", QString("<a href=\"http://libav.org\">Libav</a> version: %1.%2.%3")

        .arg(LIBAVUTIL_VERSION_MAJOR)

        .arg(LIBAVUTIL_VERSION_MINOR)

        .arg(LIBAVUTIL_VERSION_MICRO));

#endif

    html.replace("%PHYSFS%", QString("version: %1.%2.%3")

        .arg(PHYSFS_VER_MAJOR)

        .arg(PHYSFS_VER_MINOR)

        .arg(PHYSFS_VER_PATCH));

    lbl2 = new QTextBrowser(this);

    lbl2->setOpenExternalLinks(true);

    lbl2->setHtml(html);

    mainLayout->addWidget(lbl2, 1, 1);

    setAcceptDrops(true);

}

void About::dragEnterEvent(QDragEnterEvent * event)

{

    if (event->mimeData()->hasUrls())

    {

        QList<QUrl> urls = event->mimeData()->urls();

        QString url = urls[0].toString();

        if (urls.count() == 1)

            if (url.contains(QRegExp("^file://.*\\.ogg$")))

                event->acceptProposedAction();

    }

}

void About::dropEvent(QDropEvent * event)

{

    QString file =

        event->mimeData()->urls()[0].toString().remove(QRegExp("^file://"));

    SDLInteraction::instance().setMusicTrack(file);

    event->acceptProposedAction();

}