/*
 * Cantata
 *
 * Copyright (c) 2011-2018 Craig Drummond <craig.p.drummond@gmail.com>
 *
 * ----
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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 "textbrowser.h"
#include <QImage>
#include <QScrollBar>

TextBrowser::TextBrowser(QWidget *p)
    : QTextBrowser(p)
{
    origZoomValue=font().pointSize();
}

// QTextEdit/QTextBrowser seems to do FastTransformation when scaling images, and this looks bad.
QVariant TextBrowser::loadResource(int type, const QUrl &name)
{
    if (QTextDocument::ImageResource==type) {
        if ((name.scheme().isEmpty() || QLatin1String("file")==name.scheme())) {
            QImage img;
            img.load(name.path());
            if (!img.isNull()) {
                return img.scaled(picSize(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
            }
        } else if (QLatin1String("data")==name.scheme()) {
            QByteArray encoded=name.toEncoded();
            static const QString constStart("data:image/png;base64,");
            encoded=QByteArray::fromBase64(encoded.mid(constStart.length()));
            QImage img;
            img.loadFromData(encoded);
            if (!img.isNull()) {
                return img.scaled(picSize(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
            }
        }
    }
    return QTextBrowser::loadResource(type, name);
}

void TextBrowser::setPal(const QPalette &pal)
{
    setPalette(pal);
    verticalScrollBar()->setPalette(pal);
    horizontalScrollBar()->setPalette(pal);
}