Aegisub/aegisub/src/subtitles_provider.cpp

// Copyright (c) 2007, Rodrigo Braz Monteiro
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are met:
//
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//     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
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//   * Neither the name of the Aegisub Group nor the names of its contributors
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//     without specific prior written permission.
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// Aegisub Project http://www.aegisub.org/
//
// $Id$

/// @file subtitles_provider.cpp
/// @brief Base class for subtitle renderers
/// @ingroup subtitle_rendering
///


///////////
// Headers
#include "config.h"

#include "compat.h"
#include "main.h"
#ifdef WITH_CSRI
#include "subtitles_provider_csri.h"
#endif
#ifdef WITH_LIBASS
#include "subtitles_provider_libass.h"
#endif
#include "subtitles_provider_manager.h"


/// @brief Destructor 
///
SubtitlesProvider::~SubtitlesProvider() {
}



/// @brief Check if provider available (doesn't verify provider works!) 
/// @return 
///
bool SubtitlesProviderFactoryManager::ProviderAvailable() {
	// List of providers
	wxArrayString list = GetFactoryList(lagi_wxString(OPT_GET("Subtitle/Provider")->GetString()));

	// None available
	return (list.Count() > 0);
}



/// @brief Get provider 
/// @return 
///
SubtitlesProvider* SubtitlesProviderFactoryManager::GetProvider() {
	// List of providers
	wxArrayString list = GetFactoryList(lagi_wxString(OPT_GET("Subtitle/Provider")->GetString()));

	// None available
	if (list.Count() == 0) throw _T("No subtitle providers are available.");

	// Get provider
	wxString error;
	for (unsigned int i=0;i<list.Count();i++) {
		try {
			size_t pos = list[i].Find(_T('/'));
			wxString name = list[i].Left(pos);
			wxString subType = list[i].Mid(pos+1);
			SubtitlesProvider *provider = GetFactory(list[i])->CreateProvider(subType);
			if (provider) return provider;
		}
		catch (wxString err) { error += list[i] + _T(" factory: ") + err + _T("\n"); }
		catch (const wxChar *err) { error += list[i] + _T(" factory: ") + wxString(err) + _T("\n"); }
		catch (...) { error += list[i] + _T(" factory: Unknown error\n"); }
	}

	// Failed
	throw error;
}



/// @brief Register providers 
///
void SubtitlesProviderFactoryManager::RegisterProviders() {
#ifdef WITH_CSRI
	CSRISubtitlesProviderFactory *csri = new CSRISubtitlesProviderFactory();
	RegisterFactory(csri,_T("CSRI"),csri->GetSubTypes());
#endif
#ifdef WITH_LIBASS
	RegisterFactory(new LibassSubtitlesProviderFactory(),_T("libass"));
#endif
}



/// @brief Clear providers 
///
void SubtitlesProviderFactoryManager::ClearProviders() {
	ClearFactories();
}



/// DOCME
template <class SubtitlesProviderFactory> std::map<wxString,SubtitlesProviderFactory*>* FactoryManager<SubtitlesProviderFactory>::factories=NULL;