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#ifndef _SVC_STRINGCONVERTER_H
#define _SVC_STRINGCONVERTER_H
#include <bfc/dispatch.h>
#include <api/service/services.h>
#include <api/service/svcs/svc_stringtypes.h>
// Porting Rule: A new service to respond to at least OSNATIVE and UTF16 shall be
// provided for every new platform. This service should provide transcoding
// to and from the platform's native internationalized string encoding format
// (ie: MBCS under Win9x, WorldScript on the Mac, etc etc etc).and to and from
// UTF16. If the OSNATIVE string _IS_ UTF16, just respond that you can convert
// both.
class NOVTABLE svc_stringConverter : public Dispatchable {
public:
static FOURCC getServiceType() { return WaSvc::STRINGCONVERTER; }
// test the type.
int canConvert(FOURCC encoding_type);
// The return code is the number of bytes written to the output buffer, or the error.
// A return code of 0 is not an error, other than you passing NULL or a size 0 buffer won't do much interesting.
int convertToUTF8(FOURCC encoding_type, const void *in_buffer, int size_in_bytes, char *out_buffer, int size_out_bytes);
int preflightToUTF8(FOURCC encoding_type, const void *in_buffer, int size_in_bytes);
int convertFromUTF8(FOURCC encoding_type, const char *in_buffer, int size_in_bytes, void *out_buffer, int size_out_bytes);
int preflightFromUTF8(FOURCC encoding_type, const char *in_buffer, int size_in_bytes);
protected:
enum {
CANCONVERT,
CONVERTTOUTF8,
PREFLIGHTTOUTF8,
CONVERTFROMUTF8,
PREFLIGHTFROMUTF8
};
};
inline
int svc_stringConverter::canConvert(FOURCC encoding_type) {
return _call(CANCONVERT, (int)0, encoding_type);
}
inline
int svc_stringConverter::convertToUTF8(FOURCC encoding_type, const void *in_buffer, int size_in_bytes, char *out_buffer, int size_out_bytes) {
return _call(CONVERTTOUTF8, (int)0, encoding_type, in_buffer, size_in_bytes, out_buffer, size_out_bytes);
}
inline
int svc_stringConverter::preflightToUTF8(FOURCC encoding_type, const void *in_buffer, int size_in_bytes) {
return _call(PREFLIGHTTOUTF8, (int)0, encoding_type, in_buffer, size_in_bytes);
}
inline
int svc_stringConverter::convertFromUTF8(FOURCC encoding_type, const char *in_buffer, int size_in_bytes, void *out_buffer, int size_out_bytes) {
return _call(CONVERTFROMUTF8, (int)0, encoding_type, in_buffer, size_in_bytes, out_buffer, size_out_bytes);
}
inline
int svc_stringConverter::preflightFromUTF8(FOURCC encoding_type, const char *in_buffer, int size_in_bytes) {
return _call(PREFLIGHTFROMUTF8, (int)0, encoding_type, in_buffer, size_in_bytes);
}
// implementor derives from this one
class NOVTABLE svc_stringConverterI : public svc_stringConverter {
public:
// test the type
virtual int canConvert(FOURCC encoding_type) = 0;
virtual int convertToUTF8(FOURCC encoding_type, const void *in_buffer, int size_in_bytes, char *out_buffer, int size_out_bytes) = 0;
virtual int preflightToUTF8(FOURCC encoding_type, const void *in_buffer, int size_in_bytes) = 0;
virtual int convertFromUTF8(FOURCC encoding_type, const char *in_buffer, int size_in_bytes, void *out_buffer, int size_out_bytes) = 0;
virtual int preflightFromUTF8(FOURCC encoding_type, const char *in_buffer, int size_in_bytes) = 0;
protected:
RECVS_DISPATCH;
};
#include <api/service/svc_enum.h>
class StringConverterEnum : public SvcEnumT<svc_stringConverter> {
public:
StringConverterEnum(FOURCC enc_type) : encoding_type(enc_type) {}
protected:
virtual int testService(svc_stringConverter *svc) {
return (svc->canConvert(encoding_type));
}
private:
FOURCC encoding_type;
};
#endif // _SVC_STRINGCONVERTER_H
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