vcl/unx/source/printergfx/psputil.cxx

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   9  * $RCSfile: psputil.cxx,v $
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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_vcl.hxx"
  33
  34 #include <string.h>
  35
  36 #include "psputil.hxx"
  37
  38 #include "tools/debug.hxx"
  39
  40 namespace psp {
  41
  42 /*
  43  * string convenience routines
  44  */
  45
  46 sal_Int32
  47 getHexValueOf (sal_Int32 nValue, sal_Char* pBuffer)
  48 {
  49     const static sal_Char pHex [0x10] = {
  50         '0', '1', '2', '3', '4', '5', '6', '7',
  51         '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
  52
  53     pBuffer[0] = pHex [(nValue & 0xF0) >> 4];
  54     pBuffer[1] = pHex [(nValue & 0x0F)     ];
  55
  56     return 2;
  57 }
  58
  59 sal_Int32
  60 getAlignedHexValueOf (sal_Int32 nValue, sal_Char* pBuffer)
  61 {
  62     // get sign
  63     sal_Bool bNegative = nValue < 0;
  64     nValue = bNegative ? -nValue : nValue;
  65
  66     // get required buffer size, must be a multiple of two
  67     sal_Int32 nPrecision;
  68     if (nValue < 0x80)
  69         nPrecision = 2;
  70     else
  71         if (nValue < 0x8000)
  72             nPrecision = 4;
  73         else
  74             if (nValue < 0x800000)
  75                 nPrecision = 6;
  76             else
  77                 nPrecision = 8;
  78
  79     // convert the int into its hex representation, write it into the buffer
  80     sal_Int32 nRet = nPrecision;
  81     while (nPrecision)
  82     {
  83         nPrecision -= getHexValueOf (nValue % 256, pBuffer + nPrecision - 2 );
  84         nValue /= 256;
  85     }
  86
  87     // set sign bit
  88     if (bNegative)
  89     {
  90         switch (pBuffer[0])
  91         {
  92             case '0' : pBuffer[0] = '8'; break;
  93             case '1' : pBuffer[0] = '9'; break;
  94             case '2' : pBuffer[0] = 'A'; break;
  95             case '3' : pBuffer[0] = 'B'; break;
  96             case '4' : pBuffer[0] = 'C'; break;
  97             case '5' : pBuffer[0] = 'D'; break;
  98             case '6' : pBuffer[0] = 'E'; break;
  99             case '7' : pBuffer[0] = 'F'; break;
 100             default: DBG_ERROR("Already a signed value");
 101         }
 102     }
 103
 104     // report precision
 105     return nRet;
 106 }
 107
 108
 109 sal_Int32
 110 getValueOf (sal_Int32 nValue, sal_Char* pBuffer)
 111 {
 112     sal_Int32 nChar = 0;
 113     if (nValue < 0)
 114     {
 115         pBuffer [nChar++] = '-';
 116         nValue *= -1;
 117     }
 118     else
 119         if (nValue == 0)
 120         {
 121             pBuffer [nChar++] = '0';
 122             return nChar;
 123         }
 124
 125     sal_Char  pInvBuffer [32];
 126     sal_Int32 nInvChar = 0;
 127     while (nValue > 0)
 128     {
 129         pInvBuffer [nInvChar++] = '0' + nValue % 10;
 130         nValue /= 10;
 131     }
 132     while (nInvChar > 0)
 133     {
 134         pBuffer [nChar++] = pInvBuffer [--nInvChar];
 135     }
 136
 137     return nChar;
 138 }
 139
 140 sal_Int32
 141 appendStr (const sal_Char* pSrc, sal_Char* pDst)
 142 {
 143     sal_Int32 nBytes = strlen (pSrc);
 144     strncpy (pDst, pSrc, nBytes + 1);
 145
 146     return nBytes;
 147 }
 148
 149 sal_Int32
 150 appendStr (const sal_Char* pSrc, sal_Char* pDst, sal_Int32 nBytes)
 151 {
 152     strncpy (pDst, pSrc, nBytes);
 153     pDst [nBytes] = '\0';
 154     return nBytes;
 155 }
 156
 157 /*
 158  * copy strings to file
 159  */
 160
 161 sal_Bool
 162 WritePS (osl::File* pFile, const sal_Char* pString)
 163 {
 164     sal_uInt64 nInLength = rtl_str_getLength (pString);
 165     sal_uInt64 nOutLength = 0;
 166
 167     if (nInLength > 0 && pFile)
 168         pFile->write (pString, nInLength, nOutLength);
 169
 170     return nInLength == nOutLength;
 171 }
 172
 173 sal_Bool
 174 WritePS (osl::File* pFile, const sal_Char* pString, sal_uInt64 nInLength)
 175 {
 176     sal_uInt64 nOutLength = 0;
 177
 178     if (nInLength > 0 && pFile)
 179         pFile->write (pString, nInLength, nOutLength);
 180
 181     return nInLength == nOutLength;
 182 }
 183
 184 sal_Bool
 185 WritePS (osl::File* pFile, const rtl::OString &rString)
 186 {
 187     sal_uInt64 nInLength = rString.getLength();
 188     sal_uInt64 nOutLength = 0;
 189
 190     if (nInLength > 0 && pFile)
 191         pFile->write (rString, nInLength, nOutLength);
 192
 193     return nInLength == nOutLength;
 194 }
 195
 196 sal_Bool
 197 WritePS (osl::File* pFile, const rtl::OUString &rString)
 198 {
 199     return WritePS (pFile, rtl::OUStringToOString(rString, RTL_TEXTENCODING_ASCII_US));
 200 }
 201
 202 /*
 203  * cache converter for use in postscript drawing routines
 204  */
 205
 206 ConverterFactory::ConverterFactory()
 207 {
 208 }
 209
 210 ConverterFactory::~ConverterFactory ()
 211 {
 212     for( std::map< rtl_TextEncoding, rtl_UnicodeToTextConverter >::const_iterator it = m_aConverters.begin(); it != m_aConverters.end(); ++it )
 213             rtl_destroyUnicodeToTextConverter (it->second);
 214 }
 215
 216 rtl_UnicodeToTextConverter
 217 ConverterFactory::Get (rtl_TextEncoding nEncoding)
 218 {
 219     if (rtl_isOctetTextEncoding( nEncoding ))
 220     {
 221         std::map< rtl_TextEncoding, rtl_UnicodeToTextConverter >::const_iterator it =
 222             m_aConverters.find( nEncoding );
 223         rtl_UnicodeToTextConverter aConverter;
 224         if (it == m_aConverters.end())
 225         {
 226             aConverter = rtl_createUnicodeToTextConverter (nEncoding);
 227             m_aConverters[nEncoding] = aConverter;
 228         }
 229         else
 230             aConverter = it->second;
 231         return aConverter;
 232     }
 233     return NULL;
 234 }
 235
 236 // wrapper for rtl_convertUnicodeToText that handles the usual cases for
 237 // textconversion in drawtext
 238 sal_Size
 239 ConverterFactory::Convert (const sal_Unicode *pText, int nTextLen,
 240                            sal_uChar *pBuffer, sal_Size nBufferSize, rtl_TextEncoding nEncoding)
 241 {
 242     const sal_uInt32 nCvtFlags =  RTL_UNICODETOTEXT_FLAGS_UNDEFINED_QUESTIONMARK
 243         | RTL_UNICODETOTEXT_FLAGS_INVALID_QUESTIONMARK ;
 244     sal_uInt32  nCvtInfo;
 245     sal_Size    nCvtChars;
 246
 247     rtl_UnicodeToTextConverter aConverter = Get (nEncoding);
 248     rtl_UnicodeToTextContext   aContext   = rtl_createUnicodeToTextContext (aConverter);
 249
 250     sal_Size nSize = rtl_convertUnicodeToText (aConverter, aContext,
 251                                                pText, nTextLen, (sal_Char*)pBuffer, nBufferSize,
 252                                                nCvtFlags, &nCvtInfo, &nCvtChars);
 253
 254     rtl_destroyUnicodeToTextContext (aConverter, aContext);
 255
 256     return nSize;
 257 }
 258
 259 ConverterFactory*
 260 GetConverterFactory ()
 261 {
 262     static ConverterFactory* pCvt = NULL;
 263
 264     if (pCvt == NULL)
 265         pCvt = new ConverterFactory;
 266
 267     return pCvt;
 268 }
 269
 270
 271 } /* namespace psp */