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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <string.h>
#include <rtl/instance.hxx>
#include "psputil.hxx"
namespace psp {
/*
* string convenience routines
*/
sal_Int32
getHexValueOf (sal_Int32 nValue, sal_Char* pBuffer)
{
const static sal_Char pHex [0x10] = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
pBuffer[0] = pHex [(nValue & 0xF0) >> 4];
pBuffer[1] = pHex [(nValue & 0x0F) ];
return 2;
}
sal_Int32
getAlignedHexValueOf (sal_Int32 nValue, sal_Char* pBuffer)
{
// get sign
bool bNegative = nValue < 0;
nValue = bNegative ? -nValue : nValue;
// get required buffer size, must be a multiple of two
sal_Int32 nPrecision;
if (nValue < 0x80)
nPrecision = 2;
else
if (nValue < 0x8000)
nPrecision = 4;
else
if (nValue < 0x800000)
nPrecision = 6;
else
nPrecision = 8;
// convert the int into its hex representation, write it into the buffer
sal_Int32 nRet = nPrecision;
while (nPrecision)
{
nPrecision -= getHexValueOf (nValue % 256, pBuffer + nPrecision - 2 );
nValue /= 256;
}
// set sign bit
if (bNegative)
{
switch (pBuffer[0])
{
case '0' : pBuffer[0] = '8'; break;
case '1' : pBuffer[0] = '9'; break;
case '2' : pBuffer[0] = 'A'; break;
case '3' : pBuffer[0] = 'B'; break;
case '4' : pBuffer[0] = 'C'; break;
case '5' : pBuffer[0] = 'D'; break;
case '6' : pBuffer[0] = 'E'; break;
case '7' : pBuffer[0] = 'F'; break;
default: OSL_FAIL("Already a signed value");
}
}
// report precision
return nRet;
}
sal_Int32
getValueOf (sal_Int32 nValue, sal_Char* pBuffer)
{
sal_Int32 nChar = 0;
if (nValue < 0)
{
pBuffer [nChar++] = '-';
nValue *= -1;
}
else
if (nValue == 0)
{
pBuffer [nChar++] = '0';
return nChar;
}
sal_Char pInvBuffer [32];
sal_Int32 nInvChar = 0;
while (nValue > 0)
{
pInvBuffer [nInvChar++] = '0' + nValue % 10;
nValue /= 10;
}
while (nInvChar > 0)
{
pBuffer [nChar++] = pInvBuffer [--nInvChar];
}
return nChar;
}
sal_Int32
appendStr (const sal_Char* pSrc, sal_Char* pDst)
{
sal_Int32 nBytes = strlen (pSrc);
strncpy (pDst, pSrc, nBytes + 1);
return nBytes;
}
/*
* copy strings to file
*/
bool
WritePS (osl::File* pFile, const sal_Char* pString)
{
sal_uInt64 nInLength = rtl_str_getLength (pString);
sal_uInt64 nOutLength = 0;
if (nInLength > 0 && pFile)
pFile->write (pString, nInLength, nOutLength);
return nInLength == nOutLength;
}
bool
WritePS (osl::File* pFile, const sal_Char* pString, sal_uInt64 nInLength)
{
sal_uInt64 nOutLength = 0;
if (nInLength > 0 && pFile)
pFile->write (pString, nInLength, nOutLength);
return nInLength == nOutLength;
}
bool
WritePS (osl::File* pFile, const OString &rString)
{
sal_uInt64 nInLength = rString.getLength();
sal_uInt64 nOutLength = 0;
if (nInLength > 0 && pFile)
pFile->write (rString.getStr(), nInLength, nOutLength);
return nInLength == nOutLength;
}
bool
WritePS (osl::File* pFile, const OUString &rString)
{
return WritePS (pFile, OUStringToOString(rString, RTL_TEXTENCODING_ASCII_US));
}
/*
* cache converter for use in postscript drawing routines
*/
ConverterFactory::ConverterFactory()
{
}
ConverterFactory::~ConverterFactory ()
{
for( std::map< rtl_TextEncoding, rtl_UnicodeToTextConverter >::const_iterator it = m_aConverters.begin(); it != m_aConverters.end(); ++it )
rtl_destroyUnicodeToTextConverter (it->second);
}
rtl_UnicodeToTextConverter
ConverterFactory::Get (rtl_TextEncoding nEncoding)
{
if (rtl_isOctetTextEncoding( nEncoding ))
{
std::map< rtl_TextEncoding, rtl_UnicodeToTextConverter >::const_iterator it =
m_aConverters.find( nEncoding );
rtl_UnicodeToTextConverter aConverter;
if (it == m_aConverters.end())
{
aConverter = rtl_createUnicodeToTextConverter (nEncoding);
m_aConverters[nEncoding] = aConverter;
}
else
aConverter = it->second;
return aConverter;
}
return nullptr;
}
// wrapper for rtl_convertUnicodeToText that handles the usual cases for
// textconversion in drawtext
std::size_t
ConverterFactory::Convert (const sal_Unicode *pText, int nTextLen,
unsigned char *pBuffer, std::size_t nBufferSize, rtl_TextEncoding nEncoding)
{
const sal_uInt32 nCvtFlags = RTL_UNICODETOTEXT_FLAGS_UNDEFINED_QUESTIONMARK
| RTL_UNICODETOTEXT_FLAGS_INVALID_QUESTIONMARK ;
sal_uInt32 nCvtInfo;
sal_Size nCvtChars;
rtl_UnicodeToTextConverter aConverter = Get (nEncoding);
rtl_UnicodeToTextContext aContext = rtl_createUnicodeToTextContext (aConverter);
sal_Size nSize = rtl_convertUnicodeToText (aConverter, aContext,
pText, nTextLen, reinterpret_cast<char*>(pBuffer), nBufferSize,
nCvtFlags, &nCvtInfo, &nCvtChars);
rtl_destroyUnicodeToTextContext (aConverter, aContext);
return nSize;
}
namespace
{
class theConverterFactory
: public rtl::Static<ConverterFactory, theConverterFactory>
{
};
}
ConverterFactory& GetConverterFactory()
{
return theConverterFactory::get();
}
} /* namespace psp */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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