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**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
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** Commercial License Usage
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** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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#include "versiondialog.h"

#include <app/app_version.h>
#include <coreplugin/coreconstants.h>
#include <coreplugin/icore.h>
#include <utils/qtcassert.h>

#include <QDialogButtonBox>
#include <QGridLayout>
#include <QKeyEvent>
#include <QLabel>
#include <QPushButton>

using namespace Core;
using namespace Core::Internal;

VersionDialog::VersionDialog(QWidget *parent)
    : QDialog(parent)
{
    // We need to set the window icon explicitly here since for some reason the
    // application icon isn't used when the size of the dialog is fixed (at least not on X11/GNOME)
    setWindowIcon(QIcon(QLatin1String(Constants::ICON_QTLOGO_128)));

    setWindowTitle(tr("About Qt Creator"));
    setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
    QGridLayout *layout = new QGridLayout(this);
    layout->setSizeConstraint(QLayout::SetFixedSize);

    QString ideRev;
#ifdef IDE_REVISION
     //: This gets conditionally inserted as argument %8 into the description string.
     ideRev = tr("From revision %1<br/>").arg(QString::fromLatin1(Constants::IDE_REVISION_STR).left(10));
#endif

     const QString description = tr(
        "<h3>%1</h3>"
        "%2<br/>"
        "<br/>"
        "Built on %3 at %4<br />"
        "<br/>"
        "%5"
        "<br/>"
        "Copyright 2008-%6 %7. All rights reserved.<br/>"
        "<br/>"
        "The program is provided AS IS with NO WARRANTY OF ANY KIND, "
        "INCLUDING THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A "
        "PARTICULAR PURPOSE.<br/>")
        .arg(ICore::versionString(),
             ICore::buildCompatibilityString(),
             QLatin1String(__DATE__), QLatin1String(__TIME__),
             ideRev,
             QLatin1String(Constants::IDE_YEAR),
             QLatin1String(Constants::IDE_AUTHOR));

    QLabel *copyRightLabel = new QLabel(description);
    copyRightLabel->setWordWrap(true);
    copyRightLabel->setOpenExternalLinks(true);
    copyRightLabel->setTextInteractionFlags(Qt::TextBrowserInteraction);

    QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Close);
    QPushButton *closeButton = buttonBox->button(QDialogButtonBox::Close);
    QTC_CHECK(closeButton);
    buttonBox->addButton(closeButton, QDialogButtonBox::ButtonRole(QDialogButtonBox::RejectRole | QDialogButtonBox::AcceptRole));
    connect(buttonBox , SIGNAL(rejected()), this, SLOT(reject()));

    QLabel *logoLabel = new QLabel;
    logoLabel->setPixmap(QPixmap(QLatin1String(Constants::ICON_QTLOGO_128)));
    layout->addWidget(logoLabel , 0, 0, 1, 1);
    layout->addWidget(copyRightLabel, 0, 1, 4, 4);
    layout->addWidget(buttonBox, 4, 0, 1, 5);
}

bool VersionDialog::event(QEvent *event)
{
    if (event->type() == QEvent::ShortcutOverride) {
        QKeyEvent *ke = static_cast<QKeyEvent *>(event);
        if (ke->key() == Qt::Key_Escape && !ke->modifiers()) {
            ke->accept();
            return true;
        }
    }
    return QDialog::event(event);
}