/****************************************************************************
**
** Copyright (C) 2003-2006 Tilo Riemer <riemer@crossvc.com>,
**                         Frank Hemer <frank@hemer.org>
**
**
**----------------------------------------------------------------------------
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**----------------------------------------------------------------------------
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** See the GNU General Public License version 2 for more details.
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*****************************************************************************/

#include "TextDecoder.h"
#include "TextCodec.h"
#include "globals.h"
#include "LinCVSLog.h"

//----------------------------------------------------------------------------

CTextDecoderPool::CTextDecoderPool(CTextCodecPool *pCodecPool)
   : m_pCodecPool(pCodecPool)
{
   m_decoderDict.setAutoDelete(true);
}

//----------------------------------------------------------------------------

CTextDecoderPool::~CTextDecoderPool()
{
}

//----------------------------------------------------------------------------

void CTextDecoderPool::addDefaultDecoder()
{
   addDecoderForName(TextCodec::DEFAULT_CODEC);
}

//----------------------------------------------------------------------------

void CTextDecoderPool::addDecoderForLocale()
{
   addDecoderForName(nameOfCodecForLocale());
}

//----------------------------------------------------------------------------

void CTextDecoderPool::addDecoderForName(const char* name)
{
   if (!m_decoderDict.find(name)) {//no decoder
      m_pCodecPool->addCodecForName(name);
      m_decoderDict.insert(name, m_pCodecPool->pCodecForName(name)->makeDecoder());
   }
}

//----------------------------------------------------------------------------

QString CTextDecoderPool::nameOfCodecForLocale() const
{
   return m_pCodecPool->nameOfCodecForLocale();
}

//----------------------------------------------------------------------------
//----------------------------------------------------------------------------

CMetaTextDecoder::CMetaTextDecoder(CTextCodecPool *pCodecPool)
{
   m_pDecoderPool = new CTextDecoderPool(pCodecPool);

//TEST
   /*
   m_pDecoderPool->addDefaultDecoder();
   QString def = "Default Codec: ";
   def += TextCodec::DEFAULT_CODEC;
   Debug::g_pLog->log(Debug::LL_INFO, def);

   m_pDecoderPool->addDecoderForLocale();
   QString loc = m_pDecoderPool->nameOfCodecForLocale();

   Debug::g_pLog->log(Debug::LL_INFO, "Codec for locale: " + loc);
   */
}

//----------------------------------------------------------------------------

CMetaTextDecoder::~CMetaTextDecoder()
{
   delete m_pDecoderPool;
}

//----------------------------------------------------------------------------

QString CMetaTextDecoder::decode(const char *pData, const unsigned int size)
{
   return m_pDecoderPool->pDecoderForName(m_generalDecoder)->toUnicode(pData, size);
}

//----------------------------------------------------------------------------

void CMetaTextDecoder::setGeneralDecoder(const char* name)
{
   //wenn die erzeugung irnedeines decoders fehlschlägt, auf 
   //locale oder default zurückfallen... try catch
   if (name == TextCodec::CODEC_FOR_LOCALE) {
      //at least at this point we need try catch because under linux this func fails
      //m_pDecoderPool->addDecoderForLocale();
      //was speichere ich hier? den wirklichen namen des codecs oder die konstante?
      //wenn default codec... kein problem
   } else {
      m_pDecoderPool->addDecoderForName(name);
      m_generalDecoder = name;
   }
}

//----------------------------------------------------------------------------