QTfrontend/ui/widget/about.cpp
author Wuzzy <Wuzzy2@mail.ru>
Mon, 19 Mar 2018 15:21:11 +0100 (2018-03-19)
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/*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#include <QGridLayout>
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#include <QLabel>
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#include <QList>
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#include <QUrl>
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#include <QRegExp>
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#include <QNetworkAccessManager>
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#include <QNetworkRequest>
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#include <QMessageBox>
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#include <QNetworkReply>
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#include <QDebug>
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#include <QMimeData>
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#include "hwconsts.h"
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#include "SDLInteraction.h"
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#include "SDL.h"
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#include "SDL_version.h"
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#include "physfs.h"
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#ifdef VIDEOREC
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extern "C"
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{
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    #include "libavcodec/version.h"
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    #include "libavformat/version.h"
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    #include "libavutil/avutil.h" // version.h only from 51.36.0
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}
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#endif
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#if defined(Q_OS_WINDOWS)
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#define sopath(x) x ".dll"
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#elif defined(Q_OS_MAC)
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#define sopath(x) "@executable_path/../Frameworks/" x ".framework/" x
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#else
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#define sopath(x) "lib" x ".so"
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#endif
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#include "about.h"
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About::About(QWidget * parent) :
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    QWidget(parent)
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{
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    QGridLayout *mainLayout = new QGridLayout(this);
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    QVBoxLayout * leftLayout = new QVBoxLayout();
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    mainLayout->addLayout(leftLayout, 0, 0, 2, 1);
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    QLabel *imageLabel = new QLabel;
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    QImage image(":/res/Hedgehog.png");
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    imageLabel->setPixmap(QPixmap::fromImage(image));
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    imageLabel->setFixedWidth(273);
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    imageLabel->setFixedHeight(300);
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    leftLayout->addWidget(imageLabel, 0, Qt::AlignHCenter);
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    QLabel *lbl1 = new QLabel(this);
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    lbl1->setOpenExternalLinks(true);
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    lbl1->setText(
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        //: %1 contains Hedgewars' version number
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        "<div align=\"center\"><h1>"+QString(tr("Hedgewars %1")).arg(*cVersionString) + "</h1>"
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        //: “Revision” stands for a revision in Mercurial, a distributed version control system. %1 is the revision, %2 is the hexadecimal hash.
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        "<h3>" + QString(tr("Revision %1 (%2)")).arg(*cRevisionString, *cHashString) + "</h3>"
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        //: %1 is replaced by the URL of Hedgewars.
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        "<p>" + QString(tr("Visit our homepage: %1"))
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        .arg("<a href=\"https://www.hedgewars.org/\">https://www.hedgewars.org/</a>") + "</p>" +
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        //: %1 is the name of a license
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        tr("This program is distributed under the %1.")
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	.arg("<a href=\"https://www.gnu.org/licenses/gpl-2.0.html\">"+
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        //: Short for “GNU General Public License version 2”
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        tr("GNU GPL v2")+"</a>") +
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        "</div>"
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    );
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    lbl1->setWordWrap(true);
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    mainLayout->addWidget(lbl1, 0, 1);
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    lbl2 = new QTextBrowser(this);
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    lbl2->setOpenExternalLinks(true);
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    QUrl localpage = QUrl::fromLocalFile(":/res/html/about.html");
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    lbl2->setSource(localpage); //sets the source of the label from the file above
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    mainLayout->addWidget(lbl2, 1, 1);
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    /* Library information */
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    //: For the version numbers of Hedgewars' software dependencies
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    QString libinfo = QString(tr("Dependency versions:") + QString("<br>"));
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#ifdef __GNUC__
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    libinfo.append(QString(tr("<a href=\"https://gcc.gnu.org\">GCC</a>: %1")).arg(__VERSION__));
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    libinfo.append(QString("<br>"));
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#else
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    libinfo.append(QString(tr("Unknown Compiler")).arg(__VERSION__) + QString("<br>"));
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#endif
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    const SDL_version *sdl_ver;
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    SDL_version sdl_version;
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    SDL_GetVersion(&sdl_version);
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    sdl_ver = &sdl_version;
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    libinfo.append(QString(tr("<a href=\"https://www.libsdl.org/\">SDL2</a>: %1.%2.%3"))
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        .arg(sdl_ver->major)
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        .arg(sdl_ver->minor)
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        .arg(sdl_ver->patch));
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    libinfo.append(QString("<br>"));
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    const SDL_version *sdlmixer_ver = Mix_Linked_Version();
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    libinfo.append(QString(tr("<a href=\"https://www.libsdl.org/\">SDL2_mixer</a>: %1.%2.%3"))
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        .arg(sdlmixer_ver->major)
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        .arg(sdlmixer_ver->minor)
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        .arg(sdlmixer_ver->patch));
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    libinfo.append(QString("<br>"));
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    // the remaining sdl modules used only in engine, so instead of needlessly linking them here
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    // we dynamically call the function returning the linked version
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    void *sdlnet_handle = SDL_LoadObject(sopath("SDL2_net"));
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    if (sdlnet_handle != NULL) {
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        SDL_version *(*sdlnet_ver_get)(void) = NULL;
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        sdlnet_ver_get = (SDL_version *(*)(void)) SDL_LoadFunction(sdlnet_handle, "SDLNet_Linked_Version");
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        if (sdlnet_ver_get != NULL) {
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            SDL_version *sdlnet_ver = sdlnet_ver_get();
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            libinfo.append(QString(tr("<a href=\"https://www.libsdl.org/\">SDL2_net</a>: %1.%2.%3"))
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                .arg(sdlnet_ver->major)
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                .arg(sdlnet_ver->minor)
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                .arg(sdlnet_ver->patch));
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            libinfo.append(QString("<br>"));
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        }
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        SDL_UnloadObject(sdlnet_handle);
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    }
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    void *sdlimage_handle = SDL_LoadObject(sopath("SDL2_image"));
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    if (sdlimage_handle != NULL) {
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        SDL_version *(*sdlimage_ver_get)(void) = NULL;
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        sdlimage_ver_get = (SDL_version *(*)(void)) SDL_LoadFunction(sdlimage_handle, "IMG_Linked_Version");
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        if (sdlimage_ver_get != NULL) {
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            SDL_version *sdlimage_ver = sdlimage_ver_get();
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            libinfo.append(QString(tr("<a href=\"https://www.libsdl.org/\">SDL2_image</a>: %1.%2.%3"))
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                .arg(sdlimage_ver->major)
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                .arg(sdlimage_ver->minor)
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                .arg(sdlimage_ver->patch));
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            libinfo.append(QString("<br>"));
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        }
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        SDL_UnloadObject(sdlimage_handle);
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    }
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    void *sdlttf_handle = SDL_LoadObject(sopath("SDL2_ttf"));
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    if (sdlttf_handle != NULL) {
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        SDL_version *(*sdlttf_ver_get)(void) = NULL;
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        sdlttf_ver_get = (SDL_version *(*)(void)) SDL_LoadFunction(sdlttf_handle, "TTF_Linked_Version");
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        if (sdlttf_ver_get != NULL) {
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            SDL_version *sdlttf_ver = sdlttf_ver_get();
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            libinfo.append(QString(tr("<a href=\"https://www.libsdl.org/\">SDL2_ttf</a>: %1.%2.%3"))
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                .arg(sdlttf_ver->major)
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                .arg(sdlttf_ver->minor)
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                .arg(sdlttf_ver->patch));
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            libinfo.append(QString("<br>"));
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        }
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        SDL_UnloadObject(sdlttf_handle);
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    }
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    libinfo.append(QString(tr("<a href=\"https://www.qt.io/developers/\">Qt</a>: %1")).arg(QT_VERSION_STR));
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    libinfo.append(QString("<br>"));
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#ifdef VIDEOREC
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    libinfo.append(QString(tr("<a href=\"https://libav.org\">libavcodec</a>: %1.%2.%3"))
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        .arg(LIBAVCODEC_VERSION_MAJOR)
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        .arg(LIBAVCODEC_VERSION_MINOR)
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        .arg(LIBAVCODEC_VERSION_MICRO));
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    libinfo.append(QString("<br>"));
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    libinfo.append(QString(tr("<a href=\"https://libav.org\">libavformat</a>: %1.%2.%3"))
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        .arg(LIBAVFORMAT_VERSION_MAJOR)
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        .arg(LIBAVFORMAT_VERSION_MINOR)
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        .arg(LIBAVFORMAT_VERSION_MICRO));
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    libinfo.append(QString("<br>"));
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    libinfo.append(QString(tr("<a href=\"https://libav.org\">libavutil</a>: %1.%2.%3"))
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        .arg(LIBAVUTIL_VERSION_MAJOR)
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        .arg(LIBAVUTIL_VERSION_MINOR)
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        .arg(LIBAVUTIL_VERSION_MICRO));
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    libinfo.append(QString("<br>"));
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#endif
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    libinfo.append(QString(tr("<a href=\"https://icculus.org/physfs/\">PhysFS</a>: %1.%2.%3"))
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        .arg(PHYSFS_VER_MAJOR)
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        .arg(PHYSFS_VER_MINOR)
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        .arg(PHYSFS_VER_PATCH));
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    libinfo.append(QString("<br>"));
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    // TODO: how to add Lua information?
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    QLabel * lblLibInfo = new QLabel();
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    lblLibInfo->setOpenExternalLinks(true);
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    lblLibInfo->setText(libinfo);
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   207
    lblLibInfo->setWordWrap(true);
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    lblLibInfo->setMaximumWidth(280);
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    leftLayout->addWidget(lblLibInfo, 0, Qt::AlignHCenter);
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    leftLayout->addStretch(1);
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   211
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    setAcceptDrops(true);
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96c3154efee5 "About" page, not yet filled with content
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}
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void About::dragEnterEvent(QDragEnterEvent * event)
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{
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    if (event->mimeData()->hasUrls())
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    {
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        QList<QUrl> urls = event->mimeData()->urls();
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        QString url = urls[0].toString();
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        if (urls.count() == 1)
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            if (url.contains(QRegExp("^file://.*\\.ogg$")))
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                event->acceptProposedAction();
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    }
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}
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void About::dropEvent(QDropEvent * event)
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{
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    QString file =
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        event->mimeData()->urls()[0].toString().remove(QRegExp("^file://"));
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    SDLInteraction::instance().setMusicTrack(file);
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    event->acceptProposedAction();
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}