// Copyright (c) 2007, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//   * Redistributions of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
//   * Neither the name of the Aegisub Group nor the names of its contributors
//     may be used to endorse or promote products derived from this software
//     without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// -----------------------------------------------------------------------------
//
// AEGISUB
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//


#pragma once


///////////
// Headers
#include <wx/wxprec.h>
#include "video_frame.h"
#include "factory.h"


//////////////
// Prototypes
class AssFile;


////////////////////////////////
// Subtitles provider interface
class SubtitlesProvider {
public:
	virtual ~SubtitlesProvider();

	virtual bool CanRaster() { return false; }
	virtual bool LockedToVideo() { return false; }

	virtual void LoadSubtitles(AssFile *subs)=0;
	virtual void DrawSubtitles(AegiVideoFrame &dst,double time) {}
};


///////////
// Factory
class SubtitlesProviderFactory : public AegisubFactory<SubtitlesProviderFactory> {
protected:
	virtual SubtitlesProvider *CreateProvider(wxString subType=_T(""))=0;
	SubtitlesProviderFactory(wxString name,wxArrayString subTypes=wxArrayString()) {
		RegisterFactory(name,subTypes);
	}

public:
	virtual ~SubtitlesProviderFactory() {}
	static SubtitlesProvider *GetProvider();
	static void RegisterProviders();
	static bool ProviderAvailable();
};