/*  This file is part of the KDE libraries
    Copyright (C) 2003 Fredrik Höglund <fredrik@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 as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    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 "cursorcreator.h"

#include <QImage>
#include <QFile>

#include <kdemacros.h>

#include <X11/Xlib.h>
#include <X11/Xcursor/Xcursor.h>

extern "C"
{
    KDE_EXPORT ThumbCreator *new_creator()
    {
        return new CursorCreator;
    }
}

CursorCreator::CursorCreator()
{
}

bool CursorCreator::create(const QString &path, int width, int height, QImage &img)
{
    const QByteArray pathbytes = QFile::encodeName(path);
    XcursorImage *cursor = XcursorFilenameLoadImage(
        pathbytes.constData(),
        width > height ? height : width
    );

    if (cursor) {
        img = QImage(
            reinterpret_cast<uchar*>(cursor->pixels),
            cursor->width, cursor->height,
            QImage::Format_ARGB32_Premultiplied
        );

        // Create a deep copy of the image so the image data is preserved
        img = img.copy();
        XcursorImageDestroy(cursor);
        return true;
    }

    return false;
}