/*
 * KCMDesktopTheme
 * Copyright (C) 2002 Karol Szwed <gallium@kde.org>
 * Copyright (C) 2002 Daniel Molkentin <molkentin@kde.org>
 * Copyright (C) 2007 Urs Wolfer <uwolfer @ kde.org>
 * Copyright (C) 2009 by Davide Bettio <davide.bettio@kdemail.net>

 * Portions Copyright (C) 2007 Paolo Capriotti <p.capriotti@gmail.com>
 * Portions Copyright (C) 2007 Ivan Cukic <ivan.cukic+kde@gmail.com>
 * Portions Copyright (C) 2008 by Petri Damsten <damu@iki.fi>
 * Portions Copyright (C) 2000 TrollTech AS.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License version 2 as published by the Free Software Foundation.
 *
 * 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; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#include "kcmdesktoptheme.h"
#include "thememodel.h"

#include <kaboutdata.h>
#include <kstandarddirs.h>
#include <kpluginfactory.h>
#include <kpluginloader.h>
#include <Plasma/Theme>

/**** DLL Interface for kcontrol ****/

K_PLUGIN_FACTORY(KCMDesktopThemeFactory, registerPlugin<KCMDesktopTheme>();)
K_EXPORT_PLUGIN(KCMDesktopThemeFactory("kcmdesktoptheme","kcm_desktopthemedetails"))


KCMDesktopTheme::KCMDesktopTheme(QWidget *parent, const QVariantList &args)
    : KCModule(KCMDesktopThemeFactory::componentData(), parent)
{
    Q_UNUSED(args);

    setQuickHelp(
        i18n(
            "<h1>Desktop Theme</h1>"
            "This module allows you to modify the visual appearance "
            "of the desktop."
        )
    );

    setupUi(this);

    m_bDesktopThemeDirty = false;
    m_bDetailsDirty = false;

    KGlobal::dirs()->addResourceType("themes", "data", "kstyle/themes");

    KAboutData *about = new KAboutData(
        I18N_NOOP("KCMDesktopTheme"), 0,
        ki18n("KDE Desktop Theme Module"),
        0, KLocalizedString(), KAboutData::License_GPL,
        ki18n("(c) 2002 Karol Szwed, Daniel Molkentin")
    );

    about->addAuthor(ki18n("Karol Szwed"), KLocalizedString(), "gallium@kde.org");
    about->addAuthor(ki18n("Daniel Molkentin"), KLocalizedString(), "molkentin@kde.org");
    about->addAuthor(ki18n("Ralf Nolden"), KLocalizedString(), "nolden@kde.org");
    setAboutData(about);

    m_themeModel = new ThemeModel(this);
    m_theme->setModel(m_themeModel);
    m_theme->setItemDelegate(new ThemeDelegate(m_theme));
    m_theme->setVerticalScrollMode(QAbstractItemView::ScrollPerPixel);

    connect(m_detailsWidget, SIGNAL(changed()), this, SLOT(detailChanged()));

    connect(
        m_theme->selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)),
        this, SLOT(setDesktopThemeDirty())
    );
}


KCMDesktopTheme::~KCMDesktopTheme()
{
}

void KCMDesktopTheme::load()
{
    KConfig config( "kdeglobals", KConfig::FullConfig );

    loadDesktopTheme();

    m_bDesktopThemeDirty = false;
    m_bDetailsDirty = false;

    emit changed( false );
}


void KCMDesktopTheme::save()
{
    // Don't do anything if we don't need to.
    if (!(m_bDesktopThemeDirty) && !(m_bDetailsDirty)) {
        return;
    }

    //Desktop theme
    if (m_bDesktopThemeDirty) {
        QString theme = m_themeModel->data(m_theme->currentIndex(), ThemeModel::PackageNameRole).toString();
        Plasma::Theme::defaultTheme()->setThemeName(theme);
    }

    if (m_bDetailsDirty) {
        m_detailsWidget->save();
    }

    // Clean up
    m_bDesktopThemeDirty = false;
    m_bDetailsDirty = false;
    emit changed(false);
}

void KCMDesktopTheme::defaults()
{
    // TODO: reset back to default theme?
}

void KCMDesktopTheme::setDesktopThemeDirty()
{
    m_bDesktopThemeDirty = true;
    emit changed(true);
}

void KCMDesktopTheme::loadDesktopTheme()
{
    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
    m_themeModel->reload();
    QString themeName = Plasma::Theme::defaultTheme()->themeName();
    m_theme->setCurrentIndex(m_themeModel->indexOf(themeName));
    QApplication::restoreOverrideCursor();
}

void KCMDesktopTheme::detailChanged()
{
    m_bDetailsDirty = true;
    emit changed(true);
}

#include "moc_kcmdesktoptheme.cpp"

// vim: set noet ts=4: