xref: /aoo42x/main/vcl/unx/generic/gdi/salcvt.hxx (revision ebfcd9af)
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22*ebfcd9afSAndrew Rist 
23cdf0e10cSrcweir #ifndef SAL_CONVERTER_CACHE_HXX_
24cdf0e10cSrcweir #define SAL_CONVERTER_CACHE_HXX_
25cdf0e10cSrcweir 
26cdf0e10cSrcweir #include <rtl/tencinfo.h>
27cdf0e10cSrcweir #include <rtl/textcvt.h>
28cdf0e10cSrcweir 
29cdf0e10cSrcweir #include <unx/salunx.h>
30cdf0e10cSrcweir 
31cdf0e10cSrcweir #include <map>
32cdf0e10cSrcweir 
33cdf0e10cSrcweir extern "C" const char*
34cdf0e10cSrcweir pGetEncodingName( rtl_TextEncoding nEncoding );
35cdf0e10cSrcweir 
36cdf0e10cSrcweir //
37cdf0e10cSrcweir // Cache TextToUnicode and UnicodeToText converter and conversion info which is
38cdf0e10cSrcweir // used in DrawXYZ routines and in the Event loop
39cdf0e10cSrcweir //
40cdf0e10cSrcweir 
41cdf0e10cSrcweir class SalConverterCache {
42cdf0e10cSrcweir 
43cdf0e10cSrcweir 	public:
44cdf0e10cSrcweir 						SalConverterCache();
45cdf0e10cSrcweir 						~SalConverterCache();
46cdf0e10cSrcweir 		Bool			EncodingHasChar(
47cdf0e10cSrcweir 								rtl_TextEncoding nEncoding, sal_Unicode nChar );
48cdf0e10cSrcweir 		rtl_UnicodeToTextConverter
49cdf0e10cSrcweir 						GetU2TConverter( rtl_TextEncoding nEncoding );
50cdf0e10cSrcweir 		rtl_TextToUnicodeConverter
51cdf0e10cSrcweir 						GetT2UConverter( rtl_TextEncoding nEncoding );
52cdf0e10cSrcweir 		Bool			IsSingleByteEncoding( rtl_TextEncoding nEncoding );
53cdf0e10cSrcweir 		sal_Size 		ConvertStringUTF16( const sal_Unicode *pText, int nTextLen,
54cdf0e10cSrcweir 								sal_Char *pBuffer, sal_Size nBufferSize,
55cdf0e10cSrcweir 								rtl_TextEncoding nEncoding);
56cdf0e10cSrcweir 
57cdf0e10cSrcweir 		static SalConverterCache*
58cdf0e10cSrcweir 						GetInstance ();
59cdf0e10cSrcweir 
60cdf0e10cSrcweir 	private:
61cdf0e10cSrcweir 
62cdf0e10cSrcweir 		struct ConverterT {
63cdf0e10cSrcweir 			rtl_UnicodeToTextConverter 	mpU2T;
64cdf0e10cSrcweir 			rtl_TextToUnicodeConverter 	mpT2U;
65cdf0e10cSrcweir 			Bool						mbSingleByteEncoding;
66cdf0e10cSrcweir 			Bool						mbValid;
ConverterTSalConverterCache::ConverterT67cdf0e10cSrcweir             ConverterT() :
68cdf0e10cSrcweir                     mpU2T( NULL ),
69cdf0e10cSrcweir                     mpT2U( NULL ),
70cdf0e10cSrcweir                     mbSingleByteEncoding( False ),
71cdf0e10cSrcweir                     mbValid( False )
72cdf0e10cSrcweir             {
73cdf0e10cSrcweir             }
~ConverterTSalConverterCache::ConverterT74cdf0e10cSrcweir             ~ConverterT()
75cdf0e10cSrcweir             {
76cdf0e10cSrcweir                 if( mpU2T )
77cdf0e10cSrcweir                     rtl_destroyUnicodeToTextConverter( mpU2T );
78cdf0e10cSrcweir                 if( mpT2U )
79cdf0e10cSrcweir                     rtl_destroyTextToUnicodeConverter( mpT2U );
80cdf0e10cSrcweir             }
81cdf0e10cSrcweir 		};
82cdf0e10cSrcweir 
83cdf0e10cSrcweir     std::map< rtl_TextEncoding, ConverterT >		m_aConverters;
84cdf0e10cSrcweir };
85cdf0e10cSrcweir 
86cdf0e10cSrcweir 
87cdf0e10cSrcweir 
88cdf0e10cSrcweir #endif /* SAL_CONVERTER_CACHE_HXX_ */
89cdf0e10cSrcweir 
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