Method addPage

plugin/seq/plotPDF.cpp:652–728

#endif

void SimplePDFModule::addPage( const std::stringstream &ContentStream, const int WIDTH, const int HEIGHT, const int *const MARGIN )
{
    const int &marginl = MARGIN[0]; // left
    const int &marginb = MARGIN[1]; // bottom
    const int &marginr = MARGIN[2]; // right
    const int &margint = MARGIN[3]; // top

    //----------------------------------------
    // PageObject
    //----------------------------------------
    std::stringstream strPageObject;
    
    strPageObject << page_obj_offset+2*page << " 0 obj\n"
		  << "<<\n"
		  << "  /Type /Page\n"
		  << "  /Parent 3 0 R\n"
		  << "  /Resources << /Font << /F1 7 0 R >> >>\n"
		  << "  /MediaBox [0 0 " << WIDTH+marginl+marginr << ' ' << HEIGHT+marginb+margint << "]\n"
		  << "  /Contents " << page_obj_offset+2*page+1 << " 0 R\n"
		  << ">>\n"
		  << "endobj\n";

    const std::string PageObject = strPageObject.str();

    //----------------------------------------
    // pageContent (stream)
    //----------------------------------------
#ifdef HAVE_ZLIB
    char *buf;
    const int compressed_buf_length = deflate_compress( buf, ContentStream.str() );
#endif

    //----------------------------------------
    // pageContent (object)
    //----------------------------------------
    std::stringstream strContent;
    strContent << page_obj_offset+2*page+1 << " 0 obj\n"
	       << "<< /Length ";
#ifdef HAVE_ZLIB
    strContent << compressed_buf_length << " /Filter /FlateDecode";
#else
    strContent << ContentStream.str().length();
#endif
    strContent << " >>\n"
	       << "stream\n";

#ifdef HAVE_ZLIB
    // Following works well even if buf[] has '\0'
    strContent << std::string( buf+0, buf+compressed_buf_length );
    delete [] buf;
#else
    strContent << ContentStream.str();
#endif

    strContent << "endstream\n"
	       << "endobj\n";