Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* libcdr
       3             :  * Version: MPL 1.1 / GPLv2+ / LGPLv2+
       4             :  *
       5             :  * The contents of this file are subject to the Mozilla Public License Version
       6             :  * 1.1 (the "License"); you may not use this file except in compliance with
       7             :  * the License or as specified alternatively below. You may obtain a copy of
       8             :  * the License at http://www.mozilla.org/MPL/
       9             :  *
      10             :  * Software distributed under the License is distributed on an "AS IS" basis,
      11             :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12             :  * for the specific language governing rights and limitations under the
      13             :  * License.
      14             :  *
      15             :  * Major Contributor(s):
      16             :  * Copyright (C) 2011 Fridrich Strba <fridrich.strba@bluewin.ch>
      17             :  *
      18             :  *
      19             :  * All Rights Reserved.
      20             :  *
      21             :  * For minor contributions see the git repository.
      22             :  *
      23             :  * Alternatively, the contents of this file may be used under the terms of
      24             :  * either the GNU General Public License Version 2 or later (the "GPLv2+"), or
      25             :  * the GNU Lesser General Public License Version 2 or later (the "LGPLv2+"),
      26             :  * in which case the provisions of the GPLv2+ or the LGPLv2+ are applicable
      27             :  * instead of those above.
      28             :  */
      29             : 
      30             : #include <libwpd-stream/libwpd-stream.h>
      31             : #include "libcdr_utils.h"
      32             : #include "CommonParser.h"
      33             : 
      34             : #ifndef M_PI
      35             : #define M_PI 3.14159265358979323846
      36             : #endif
      37             : 
      38           0 : libcdr::CommonParser::CommonParser(libcdr::CDRCollector *collector)
      39           0 :   : m_collector(collector), m_precision(libcdr::PRECISION_UNKNOWN) {}
      40             : 
      41           0 : libcdr::CommonParser::~CommonParser()
      42             : {
      43           0 : }
      44             : 
      45           0 : double libcdr::CommonParser::readCoordinate(WPXInputStream *input, bool bigEndian)
      46             : {
      47           0 :   if (m_precision == PRECISION_UNKNOWN)
      48           0 :     throw UnknownPrecisionException();
      49           0 :   else if (m_precision == PRECISION_16BIT)
      50           0 :     return (double)readS16(input, bigEndian) / 1000.0;
      51           0 :   return (double)readS32(input, bigEndian) / 254000.0;
      52             : }
      53             : 
      54           0 : unsigned libcdr::CommonParser::readUnsigned(WPXInputStream *input, bool bigEndian)
      55             : {
      56           0 :   if (m_precision == PRECISION_UNKNOWN)
      57           0 :     throw UnknownPrecisionException();
      58           0 :   else if (m_precision == PRECISION_16BIT)
      59           0 :     return (unsigned)readU16(input, bigEndian);
      60           0 :   return readU32(input, bigEndian);
      61             : }
      62             : 
      63           0 : int libcdr::CommonParser::readInteger(WPXInputStream *input, bool bigEndian)
      64             : {
      65           0 :   if (m_precision == PRECISION_UNKNOWN)
      66           0 :     throw UnknownPrecisionException();
      67           0 :   else if (m_precision == PRECISION_16BIT)
      68           0 :     return (int)readS16(input, bigEndian);
      69           0 :   return readS32(input, bigEndian);
      70             : }
      71             : 
      72           0 : double libcdr::CommonParser::readAngle(WPXInputStream *input, bool bigEndian)
      73             : {
      74           0 :   if (m_precision == PRECISION_UNKNOWN)
      75           0 :     throw UnknownPrecisionException();
      76           0 :   else if (m_precision == PRECISION_16BIT)
      77           0 :     return M_PI * (double)readS16(input, bigEndian) / 1800.0;
      78           0 :   return M_PI * (double)readS32(input, bigEndian) / 180000000.0;
      79             : }
      80             : 
      81           0 : void libcdr::CommonParser::outputPath(const std::vector<std::pair<double, double> > &points,
      82             :                                       const std::vector<unsigned char> &types)
      83             : {
      84           0 :   bool isClosedPath = false;
      85           0 :   std::vector<std::pair<double, double> >tmpPoints;
      86           0 :   for (unsigned k=0; k<points.size(); k++)
      87             :   {
      88           0 :     const unsigned char &type = types[k];
      89           0 :     if (type & 0x08)
      90           0 :       isClosedPath = true;
      91             :     else
      92           0 :       isClosedPath = false;
      93           0 :     if (!(type & 0x10) && !(type & 0x20))
      94             :     {
      95             :       // cont angle
      96             :     }
      97           0 :     else if (type & 0x10)
      98             :     {
      99             :       // cont smooth
     100             :     }
     101           0 :     else if (type & 0x20)
     102             :     {
     103             :       // cont symmetrical
     104             :     }
     105           0 :     if (!(type & 0x40) && !(type & 0x80))
     106             :     {
     107           0 :       tmpPoints.clear();
     108           0 :       m_collector->collectMoveTo(points[k].first, points[k].second);
     109             :     }
     110           0 :     else if ((type & 0x40) && !(type & 0x80))
     111             :     {
     112           0 :       tmpPoints.clear();
     113           0 :       m_collector->collectLineTo(points[k].first, points[k].second);
     114           0 :       if (isClosedPath)
     115           0 :         m_collector->collectClosePath();
     116             :     }
     117           0 :     else if (!(type & 0x40) && (type & 0x80))
     118             :     {
     119           0 :       if (tmpPoints.size() >= 2)
     120           0 :         m_collector->collectCubicBezier(tmpPoints[0].first, tmpPoints[0].second,
     121           0 :                                         tmpPoints[1].first, tmpPoints[1].second,
     122           0 :                                         points[k].first, points[k].second);
     123             :       else
     124           0 :         m_collector->collectLineTo(points[k].first, points[k].second);
     125           0 :       if (isClosedPath)
     126           0 :         m_collector->collectClosePath();
     127           0 :       tmpPoints.clear();
     128             :     }
     129           0 :     else if((type & 0x40) && (type & 0x80))
     130             :     {
     131           0 :       tmpPoints.push_back(points[k]);
     132             :     }
     133           0 :   }
     134           0 : }
     135             : 
     136             : 
     137             : /* vim:set shiftwidth=2 softtabstop=2 expandtab: */