/* This file is part of the KDE libraries
   Copyright (C) 2007 Urs Wolfer <uwolfer at kde.org>
   Copyright (C) 2008 Friedrich W. H. Kossebau <kossebau@kde.org>
   Copyright (C) 2010 Teo Mrnjavac <teo@kde.org>

   Parts of this class have been take from the KAboutApplication class, which was
   Copyright (C) 2000 Waldo Bastian (bastian@kde.org) and Espen Sand (espen@kde.org)

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License version 2 as published by the Free Software Foundation.

   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/

#include "kaboutapplicationdialog.h"

#include "kabstractaboutdialog_p.h"
#include "../kxmlgui_version.h"
// KF
#include <KAboutData>
#include <KLocalizedString>
#include <KWidgetItemDelegate>
// Qt
#include <QApplication>
#include <QLabel>
#include <QTabWidget>
#include <QVBoxLayout>


class Q_DECL_HIDDEN KAboutApplicationDialog::Private : public KAbstractAboutDialogPrivate
{
public:
    Private(const KAboutData &aboutData, KAboutApplicationDialog *parent)
        : q(parent)
        , aboutData(aboutData)
    {}

    void init(Options opt);

private:
    KAboutApplicationDialog * const q;

    const KAboutData aboutData;
};


KAboutApplicationDialog::KAboutApplicationDialog(const KAboutData &aboutData, QWidget *parent)
    : KAboutApplicationDialog(aboutData, NoOptions, parent)
{
}

KAboutApplicationDialog::KAboutApplicationDialog(const KAboutData &aboutData, Options opt, QWidget *parent)
    : QDialog(parent)
    , d(new Private(aboutData, this))
{
    d->init(opt);
}

void KAboutApplicationDialog::Private::init(Options opt)
{
    q->setWindowTitle(i18n("About %1", aboutData.displayName()));

    //Set up the title widget...
    QPixmap titlePixmap;
    if (aboutData.programLogo().canConvert<QPixmap>()) {
        titlePixmap = aboutData.programLogo().value<QPixmap>();
    } else if (aboutData.programLogo().canConvert<QImage>()) {
        titlePixmap = QPixmap::fromImage(aboutData.programLogo().value<QImage>());
    } else {
        QIcon windowIcon = qApp->windowIcon();
        // Legacy support for deprecated KAboutData::programIconName()
QT_WARNING_PUSH
QT_WARNING_DISABLE_CLANG("-Wdeprecated-declarations")
QT_WARNING_DISABLE_GCC("-Wdeprecated-declarations")
        if (windowIcon.isNull() && !aboutData.programIconName().isEmpty()) {
            windowIcon = QIcon::fromTheme(aboutData.programIconName());
        }
QT_WARNING_POP
        titlePixmap = windowIcon.pixmap(48, 48);
    }

    QWidget *titleWidget = createTitleWidget(titlePixmap, aboutData.displayName(), aboutData.version(), q);

    //Then the tab bar...
    QTabWidget *tabWidget = new QTabWidget;
    tabWidget->setUsesScrollButtons(false);

    //Set up the first page...
    QWidget *aboutWidget = createAboutWidget(aboutData.shortDescription(), aboutData.otherText(),
                                             aboutData.copyrightStatement(), aboutData.homepage(),
                                             aboutData.licenses(), q);

    tabWidget->addTab(aboutWidget, i18n("About"));

    // Version
    QWidget *versionWidget = new QWidget(q);
    QVBoxLayout *versionLayout = new QVBoxLayout;
    if (!(opt & HideKdeVersion)) {
        QLabel *versionLabel = new QLabel(
            i18n("<ul><li>KDE Frameworks %1</li><li>Qt %2 (built against %3)</li><li>The <em>%4</em> windowing system</li></ul>",
                 QStringLiteral(KXMLGUI_VERSION_STRING),
                 QString::fromLocal8Bit(qVersion()),
                 QStringLiteral(QT_VERSION_STR),
                 QGuiApplication::platformName()));
        versionLabel->setTextInteractionFlags(Qt::TextSelectableByMouse);
        versionLayout->addWidget(versionLabel);
    }
    versionLayout->addStretch();
    versionWidget->setLayout(versionLayout);
    tabWidget->addTab(versionWidget, i18n("Libraries"));

    //And here we go, authors page...
    const int authorCount = aboutData.authors().count();
    if (authorCount) {
        QWidget *authorWidget = createAuthorsWidget(aboutData.authors(), aboutData.ocsProviderUrl(),
                                                    aboutData.customAuthorTextEnabled(),
                                                    aboutData.customAuthorRichText(),
                                                    aboutData.bugAddress(), q);

        const QString authorPageTitle = i18np("Author", "Authors", authorCount);
        tabWidget->addTab(authorWidget, authorPageTitle);
    }

    //And credits page...
    if (!aboutData.credits().isEmpty()) {
        QWidget *creditWidget = createCreditWidget(aboutData.credits(), aboutData.ocsProviderUrl(), q);
        tabWidget->addTab(creditWidget, i18n("Thanks To"));
    }

    //Finally, the optional translators page...
    if (!(opt & HideTranslators) && !aboutData.translators().isEmpty()) {
        QWidget *translatorWidget = createTranslatorsWidget(aboutData.translators(), aboutData.ocsProviderUrl(), q);

        tabWidget->addTab(translatorWidget, i18n("Translation"));
    }

    createForm(titleWidget, tabWidget, q);
}

KAboutApplicationDialog::~KAboutApplicationDialog()
{
    delete d;
    // The delegate wants to be deleted before the items it created, otherwise
    // complains bitterly about it
    qDeleteAll(findChildren<KWidgetItemDelegate *>());
}
