pdf_uint32 PdfXRef::GetSize() const
{
pdf_uint32 nCount = 0;
PdfXRef::TCIVecXRefBlock it = m_vecBlocks.begin();
while( it != m_vecBlocks.end() )
{
nCount += (*it).m_nCount;
++it;
}
//return nCount;
if( !m_vecBlocks.size() )
return 0;
const PdfXRefBlock& lastBlock = m_vecBlocks.back();
pdf_objnum highObj = lastBlock.items.size() ? lastBlock.items.back().reference.ObjectNumber() : 0;
pdf_objnum highFree = lastBlock.freeItems.size() ? lastBlock.freeItems.back().ObjectNumber() : 0;
pdf_uint32 max = PDF_MAX( highObj, highFree );
// From the PdfReference: /Size's value is 1 greater than the highes object number used in the file.
return max+1;
}
pdf_long PdfMemoryOutputStream::Write( const char* pBuffer, pdf_long lLen )
{
if( !m_pBuffer )
{
PODOFO_RAISE_ERROR( ePdfError_InvalidHandle );
}
if( m_lLen + lLen > m_lSize )
{
if( m_bOwnBuffer )
{
// a reallocation is required
m_lSize = PDF_MAX( (m_lLen + lLen), (m_lSize << 1 ) );
m_pBuffer = static_cast<char*>(podofo_realloc( m_pBuffer, m_lSize ));
if( !m_pBuffer )
{
PODOFO_RAISE_ERROR( ePdfError_OutOfMemory );
}
}
else
{
PODOFO_RAISE_ERROR( ePdfError_OutOfMemory );
}
}
memcpy( m_pBuffer + m_lLen, pBuffer, lLen );
m_lLen += lLen;
return lLen;
}
void PdfFontCID::CreateWidth( PdfObject* pFontDict ) const
{
const int cAbsoluteMax = 0xffff;
int nFirstChar = m_pEncoding->GetFirstChar();
int nLastChar = m_pEncoding->GetLastChar();
int i;
// Allocate an initialize an array, large enough to
// hold a width value for every possible glyph index
double* pdWidth = static_cast<double*>(malloc( sizeof(double) * cAbsoluteMax ) );
if( !pdWidth )
{
PODOFO_RAISE_ERROR( ePdfError_OutOfMemory );
}
for( i=0;i<cAbsoluteMax;i++ )
pdWidth[i] = 0.0;
// Load the width of all requested glyph indeces
int nMin = 0xffff;
int nMax = 0;
long lGlyph = 0;
for( i=nFirstChar;i<=nLastChar;i++ )
{
lGlyph = m_pMetrics->GetGlyphId( i );
if( lGlyph )
{
nMin = PDF_MIN( static_cast<long>(nMin), lGlyph );
nMax = PDF_MAX( static_cast<long>(nMax), lGlyph );
nMax = PDF_MIN( nMax, cAbsoluteMax );
if( lGlyph < cAbsoluteMax )
pdWidth[lGlyph] = m_pMetrics->GetGlyphWidth( lGlyph );
}
}
if (nMax >= nMin) {
// Now compact the array
std::ostringstream oss;
PdfArray array;
array.reserve( nMax - nMin + 1 );
i = nMin;
double dCurWidth = pdWidth[i];
pdf_int64 lCurIndex = i++;
pdf_int64 lCurLength = 1L;
for( ;i<=nMax;i++ )
{
if( static_cast<int>(pdWidth[i] - dCurWidth) == 0 )
++lCurLength;
else
{
if( lCurLength > 1 )
{
array.push_back( lCurIndex );
pdf_int64 temp = lCurIndex + lCurLength - 1;
array.push_back( temp );
array.push_back( dCurWidth );
}
else
{
if( array.size() && array.back().IsArray() )
{
array.back().GetArray().push_back( dCurWidth );
}
else
{
PdfArray tmp;
tmp.push_back( dCurWidth );
array.push_back( lCurIndex );
array.push_back( tmp );
}
}
lCurIndex = i;
lCurLength = 1L;
dCurWidth = pdWidth[i];
}
}
if (array.size() == 0)
{
array.push_back( lCurIndex = nMin );
array.push_back( lCurIndex = nMax );
array.push_back( dCurWidth );
}
pFontDict->GetDictionary().AddKey( PdfName("W"), array );
}
free( pdWidth );
}