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/***************************************************************************

 *   Copyright (c) 2008 Werner Mayer <wmayer@users.sourceforge.net>        *

 *                                                                         *

 *   This file is part of the FreeCAD CAx development system.              *

 *                                                                         *

 *   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., 59 Temple Place,         *

 *   Suite 330, Boston, MA  02111-1307, USA                                *

 *                                                                         *

 ***************************************************************************/

 

 

#include "PreCompiled.h"

 

#ifndef _PreComp_

# include <QBuffer>

# include <QByteArray>

# include <QDateTime>

# include <QImage>

#endif

 

#include "Thumbnail.h"

#include "View3DInventorViewer.h"

#include <Base/Writer.h>

#include <Base/Reader.h>

#include <App/Application.h>

 

using namespace Gui;

 

Thumbnail::Thumbnail(int s) : viewer(0), size(s)

{

}

 

Thumbnail::~Thumbnail()

{

}

 

void Thumbnail::setViewer(View3DInventorViewer* v)

{

    this->viewer = v;

}

 

void Thumbnail::setSize(int s)

{

    this->size = s;

}

 

void Thumbnail::setFileName(const char* fn)

{

    this->uri = QUrl::fromLocalFile(QString::fromUtf8(fn));

}

 

unsigned int Thumbnail::getMemSize (void) const

{

    return 0;

}

 

void Thumbnail::Save (Base::Writer &writer) const

{

    // It's only possible to add extra information if force of XML is disabled

    if (writer.isForceXML() == false)

        writer.addFile("thumbnails/Thumbnail.png", this);

}

 

void Thumbnail::Restore(Base::XMLReader &reader)

{

    //reader.addFile("Thumbnail.png",this);

}

 

void Thumbnail::SaveDocFile (Base::Writer &writer) const

{

    if (!this->viewer)

        return;

    QImage img;

    this->viewer->savePicture(this->size, this->size, View3DInventorViewer::White, img);

 

    // according to specification add some meta-information to the image

    uint mt = QDateTime::currentDateTime().toTime_t();

    QString mtime = QString::fromAscii("%1").arg(mt);

    img.setText(QLatin1String("Software"), QString::fromUtf8(App::Application::Config()["ExeName"].c_str()));

    img.setText(QLatin1String("Thumb::Mimetype"), QLatin1String("application/x-extension-fcstd"));

    img.setText(QLatin1String("Thumb::MTime"), mtime);

    img.setText(QLatin1String("Thumb::URI"), this->uri.toString());

 

    QByteArray ba;

    QBuffer buffer(&ba);

    buffer.open(QIODevice::WriteOnly);

    img.save(&buffer, "PNG");

    writer.Stream().write(ba.constData(), ba.length());

}

 

void Thumbnail::RestoreDocFile(Base::Reader &reader)

{

}