/*
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 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
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 */

#ifndef FontTranscoder_h
#define FontTranscoder_h

#include <wtf/HashMap.h>
#include <wtf/Noncopyable.h>
#include <wtf/text/AtomicStringHash.h>

namespace WebCore {

class FontDescription;
class TextEncoding;

class FontTranscoder {
    WTF_MAKE_NONCOPYABLE(FontTranscoder); WTF_MAKE_FAST_ALLOCATED;
public:
    void convert(String& text, const FontDescription&, const TextEncoding* = 0) const;
    bool needsTranscoding(const FontDescription&, const TextEncoding* = 0) const;

private:
    FontTranscoder();
    ~FontTranscoder(); // Not implemented to make sure nobody accidentally calls delete -- WebCore does not delete singletons.

    enum ConverterType {
        NoConversion, BackslashToYenSign,
    };

    ConverterType converterType(const FontDescription&, const TextEncoding*) const;

    HashMap<AtomicString, ConverterType> m_converterTypes;

    friend FontTranscoder& fontTranscoder();
};

FontTranscoder& fontTranscoder();

} // namespace WebCore

#endif // FontTranscoder_h