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/*
* Copyright 2011 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3, 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 warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the applicable version of the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of both the GNU Lesser General Public
* License version 3 along with this program. If not, see
* <http://www.gnu.org/licenses/>
**
* Authored by: Nick Dedekind <nick.dedekind@canonical.com>
*
*/
#ifndef UNITYSHARED_THUMBNAILGENERATOR_H
#define UNITYSHARED_THUMBNAILGENERATOR_H
#include <Nux/Nux.h>
#include "UnityCore/GLibWrapper.h"
namespace unity
{
class Thumbnailer
{
public:
typedef std::shared_ptr<Thumbnailer> Ptr;
virtual std::string GetName() const = 0;
virtual bool Run(int size, std::string const& input_file, std::string& output_file, std::string& error_hint) = 0;
};
class ThumbnailNotifier : public nux::Object
{
public:
typedef nux::ObjectPtr<ThumbnailNotifier> Ptr;
NUX_DECLARE_OBJECT_TYPE(ThumbnailNotifier, Object);
ThumbnailNotifier();
void Cancel();
bool IsCancelled() const;
sigc::signal<void, std::string> ready;
sigc::signal<void, std::string> error;
private:
glib::Object<GCancellable> cancel_;
};
class ThumbnailGeneratorImpl;
class ThumbnailGenerator
{
public:
ThumbnailGenerator();
virtual ~ThumbnailGenerator();
static ThumbnailGenerator& Instance();
static void RegisterThumbnailer(std::list<std::string> mime_types, Thumbnailer::Ptr thumbnailer);
ThumbnailNotifier::Ptr GetThumbnail(std::string const& uri, int size);
void DoCleanup();
protected:
std::unique_ptr<ThumbnailGeneratorImpl> pimpl;
friend class Thumbnail;
};
} // namespace unity
#endif // UNITYSHARED_THUMBNAILGENERATOR_H
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