/*
 * This file Copyright (C) 2009 Charles Kerr <charles@transmissionbt.com>
 *
 * This file is licensed by the GPL version 2.  Works owned by the
 * Transmission project are granted a special exemption to clause 2(b)
 * so that the bulk of its code can remain under the MIT license.
 * This exemption does not extend to derived works not owned by
 * the Transmission project.
 *
 * $Id:$
 */

#include <QDialogButtonBox>
#include <QFont>
#include <QLabel>
#include <QMessageBox>
#include <QPixmap>
#include <QPushButton>
#include <QString>
#include <QTextEdit>
#include <QVBoxLayout>
#include <QWidget>

#include <libtransmission/transmission.h>
#include <libtransmission/version.h>

#include "about.h"
#include "hig.h"

AboutDialog :: AboutDialog( QWidget * parent ):
    QDialog( parent, Qt::Dialog )
{
    setWindowTitle( tr( "About Transmission" ) );
    QLabel * l;
    QVBoxLayout * v = new QVBoxLayout( this );

    l = new QLabel;
    l->setPixmap( QPixmap( ":/icons/transmission-48.png" ) );
    l->setAlignment( Qt::AlignCenter );
    v->addWidget( l );

    QFont f( font( ) );
    f.setWeight( QFont::Bold );
    f.setPointSize( int( f.pointSize( ) * 1.2 ) );
    l = new QLabel( "<big>Transmission " LONG_VERSION_STRING "</big>" );
    l->setAlignment( Qt::AlignCenter );
    l->setFont( f );
    l->setMargin( 8 );
    v->addWidget( l );

    l = new QLabel( tr( "A fast and easy BitTorrent client" ) );
    l->setStyleSheet( "text-align: center" );
    l->setAlignment( Qt::AlignCenter );
    v->addWidget( l );

    l = new QLabel( tr( "Copyright 2005-2009 The Transmission Project" ) );
    l->setAlignment( Qt::AlignCenter );
    v->addWidget( l );

    l = new QLabel( "<a href=\"http://www.transmissionbt.com/\">http://www.transmissionbt.com/</a>" );
    l->setOpenExternalLinks( true );
    l->setAlignment( Qt::AlignCenter );
    v->addWidget( l );

    v->addSpacing( HIG::PAD_BIG );

    QPushButton * b;
    QDialogButtonBox * box = new QDialogButtonBox;

    b = new QPushButton( tr( "C&redits" ), this );
    box->addButton( b, QDialogButtonBox::ActionRole );
    connect( b, SIGNAL(clicked()), this, SLOT(showCredits()) );

    b = new QPushButton( tr( "&License" ), this );
    box->addButton( b, QDialogButtonBox::ActionRole );
    connect( b, SIGNAL(clicked()), this, SLOT(showLicense()) );

    box->addButton( QDialogButtonBox::Close );
    box->setCenterButtons( true );
    v->addWidget( box );
    connect( box, SIGNAL(rejected()), this, SLOT(hide()) );
}

void
AboutDialog :: showCredits( )
{
    QMessageBox::about( this, tr( "Credits" ),
        "Charles Kerr (Backend; Daemon; GTK+; Qt)\n"
        "Michell Livingston (Backend; OS X)\n"
        "Eric Petit (Backend; OS X)" );
}

void
AboutDialog :: showLicense( )
{
    QMessageBox::about( this, tr( "License" ),
        "The Transmission binaries and most of its source code is distributed "
        "license. "
        "\n\n"
        "Some files are copyrighted by Charles Kerr and are covered by "
        "the GPL version 2.  Works owned by the Transmission project "
        "are granted a special exemption to clause 2(b) so that the bulk "
        "of its code can remain under the MIT license.  This exemption does "
        "not extend to original or derived works not owned by the "
        "Transmission project. "
        "\n\n"
        "Permission is hereby granted, free of charge, to any person obtaining "
        "a copy of this software and associated documentation files (the "
        "'Software'), to deal in the Software without restriction, including "
        "without limitation the rights to use, copy, modify, merge, publish, "
        "distribute, sublicense, and/or sell copies of the Software, and to "
        "permit persons to whom the Software is furnished to do so, subject to "
        "the following conditions: "
        "\n\n"
        "The above copyright notice and this permission notice shall be included "
        "in all copies or substantial portions of the Software. "
        "\n\n"
        "THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, "
        "EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF "
        "MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. "
        "IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY "
        "CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, "
        "TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE "
        "SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE." );
}