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/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 *
 *   Copyright (C) 2012 by Dominik Riebeling
 *
 * All files in this archive are subject to the GNU General Public License.
 * See the file COPYING in the source tree root for full license agreement.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/

#include <QtGui>
#include <QDebug>
#include "infowidget.h"
#include "rbsettings.h"

InfoWidget::InfoWidget(QWidget *parent) : QWidget(parent)
{
    ui.setupUi(this);

    ui.treeInfo->setAlternatingRowColors(true);
    ui.treeInfo->setHeaderLabels(QStringList() << tr("File") << tr("Version"));
    ui.treeInfo->expandAll();
    ui.treeInfo->setColumnCount(2);
    ui.treeInfo->setLayoutDirection(Qt::LeftToRight);
}


void InfoWidget::updateInfo(void)
{
    qDebug() << "[InfoWidget] updating server info";

    QString mp = RbSettings::value(RbSettings::Mountpoint).toString();
    QSettings log(mp + "/.rockbox/rbutil.log", QSettings::IniFormat, this);
    QStringList groups = log.childGroups();
    QList<QTreeWidgetItem *> items;
    QTreeWidgetItem *w, *w2;
    QString min, max;
    int olditems = 0;

    // remove old list entries (if any)
    int l = ui.treeInfo->topLevelItemCount();
    while(l--) {
        QTreeWidgetItem *m;
        m = ui.treeInfo->takeTopLevelItem(l);
        // delete childs (single level deep, no recursion here)
        int n = m->childCount();
        while(n--)
            delete m->child(n);
    }
    // get and populate new items
    for(int a = 0; a < groups.size(); a++) {
        log.beginGroup(groups.at(a));
        QStringList keys = log.allKeys();
        w = new QTreeWidgetItem;
        w->setFlags(Qt::ItemIsEnabled);
        w->setText(0, groups.at(a));
        items.append(w);
        // get minimum and maximum version information so we can hilight old files
        min = max = log.value(keys.at(0)).toString();
        for(int b = 0; b < keys.size(); b++) {
            if(log.value(keys.at(b)).toString() > max)
                max = log.value(keys.at(b)).toString();
            if(log.value(keys.at(b)).toString() < min)
                min = log.value(keys.at(b)).toString();
        }

        for(int b = 0; b < keys.size(); b++) {
            QString file;
            file = mp + "/" + keys.at(b);
            if(QFileInfo(file).isDir())
                continue;
            w2 = new QTreeWidgetItem(w, QStringList() << "/"
                    + keys.at(b) << log.value(keys.at(b)).toString());
            if(log.value(keys.at(b)).toString() != max) {
                w2->setForeground(0, QBrush(QColor(255, 0, 0)));
                w2->setForeground(1, QBrush(QColor(255, 0, 0)));
                olditems++;
            }
            items.append(w2);
        }
        log.endGroup();
        if(min != max)
            w->setData(1, Qt::DisplayRole, QString("%1 / %2").arg(min, max));
        else
            w->setData(1, Qt::DisplayRole, max);
    }
    ui.treeInfo->insertTopLevelItems(0, items);
    ui.treeInfo->expandAll();
    ui.treeInfo->resizeColumnToContents(0);
    ui.treeInfo->collapseAll();
}