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/******************************************************************************
** libDXFrw - Library to read/write DXF files (ascii & binary) **
** **
** Copyright (C) 2011 Rallaz, rallazz@gmail.com **
** **
** This library is free software, licensed under the terms of the GNU **
** General Public License as published by the Free Software Foundation, **
** either version 2 of the License, or (at your option) any later version. **
** You should have received a copy of the GNU General Public License **
** along with this program. If not, see <http://www.gnu.org/licenses/>. **
******************************************************************************/
#include <stdlib.h>
#include <fstream>
#include <string>
#include <sstream>
#include "dxfreader.h"
#include "drw_textcodec.h"
#ifdef DRW_DBG
#include <iostream> //for debug
#define DBG(a) std::cerr << a
#else
#define DBG(a)
#endif
bool dxfReader::readRec(int *codeData, bool skip) {
// std::string text;
int code;
#ifdef DRW_DBG
count = count+2; //DBG
/* if (count > 10250)
DBG("line 10256");*/
#endif
if (!readCode(&code))
return false;
*codeData = code;
if (code < 10)
readString();
else if (code < 60)
readDouble();
else if (code < 80)
readInt();
else if (code > 89 && code < 100) //TODO this is an int 32b
readInt32();
else if (code == 100 || code == 102 || code == 105)
readString();
else if (code > 109 && code < 150) //skip not used at the v2012
readDouble();
else if (code > 159 && code < 170) //skip not used at the v2012
readInt64();
else if (code < 180)
readInt();
else if (code > 209 && code < 240) //skip not used at the v2012
readDouble();
else if (code > 269 && code < 290) //skip not used at the v2012
readInt();
else if (code < 300) //TODO this is a boolean indicator, int in Binary?
readBool();
else if (code < 370)
readString();
else if (code < 390)
readInt();
else if (code < 400)
readString();
else if (code < 410)
readInt();
else if (code < 420)
readString();
else if (code < 430) //TODO this is an int 32b
readInt32();
else if (code < 440)
readString();
else if (code < 450) //TODO this is an int 32b
readInt32();
else if (code < 460) //TODO this is long??
readInt();
else if (code < 470) //TODO this is a floating point double precision??
readDouble();
else if (code < 481)
readString();
else if (code > 998 && code < 1009) //skip not used at the v2012
readString();
else if (code < 1060) //TODO this is a floating point double precision??
readDouble();
else if (code < 1071)
readInt();
else if (code == 1071) //TODO this is an int 32b
readInt32();
else if (skip)
//skip safely this dxf entry ( ok for ascii dxf)
readString();
else
//break in binary files because the conduct is unpredictable
return false;
return (filestr->good());
}
int dxfReader::getHandleString(){
int res;
#if defined(__APPLE__)
int Succeeded = sscanf ( strData.c_str(), "%x", &res );
if ( !Succeeded || Succeeded == EOF )
res = 0;
#else
std::istringstream Convert(strData);
if ( !(Convert >> std::hex >>res) )
res = 0;
#endif
return res;
}
bool dxfReaderBinary::readCode(int *code) {
unsigned short *int16p;
char buffer[2];
filestr->read(buffer,2);
int16p = (unsigned short *) buffer;
//exist a 32bits int (code 90) with 2 bytes???
if ((*code == 90) && (*int16p>2000)){
DBG(*code); DBG(" de 16bits\n");
filestr->seekg(-4, std::ios_base::cur);
filestr->read(buffer,2);
int16p = (unsigned short *) buffer;
}
*code = *int16p;
DBG(*code); DBG("\n");
return (filestr->good());
}
bool dxfReaderBinary::readString() {
std::getline(*filestr, strData, '\0');
DBG(strData); DBG("\n");
return (filestr->good());
}
bool dxfReaderBinary::readString(std::string *text) {
std::getline(*filestr, *text, '\0');
DBG(*text); DBG("\n");
return (filestr->good());
}
bool dxfReaderBinary::readInt() {
char buffer[2];
filestr->read(buffer,2);
intData = (int)((buffer[1] << 8) | buffer[0]);
DBG(intData); DBG("\n");
return (filestr->good());
}
bool dxfReaderBinary::readInt32() {
unsigned int *int32p;
char buffer[4];
filestr->read(buffer,4);
int32p = (unsigned int *) buffer;
intData = *int32p;
DBG(intData); DBG("\n");
return (filestr->good());
}
bool dxfReaderBinary::readInt64() {
unsigned long long int *int64p; //64 bits integer pointer
char buffer[8];
filestr->read(buffer,8);
int64p = (unsigned long long int *) buffer;
int64 = *int64p;
DBG(int64); DBG(" int64\n");
return (filestr->good());
}
bool dxfReaderBinary::readDouble() {
double *result;
char buffer[8];
filestr->read(buffer,8);
result = (double *) buffer;
doubleData = *result;
DBG(doubleData); DBG("\n");
return (filestr->good());
}
//saved as int or add a bool member??
bool dxfReaderBinary::readBool() {
char buffer[1];
filestr->read(buffer,1);
intData = (int)(buffer[0]);
DBG(intData); DBG("\n");
return (filestr->good());
}
bool dxfReaderAscii::readCode(int *code) {
std::string text;
std::getline(*filestr, text);
*code = atoi(text.c_str());
DBG(*code); DBG("\n");
return (filestr->good());
}
bool dxfReaderAscii::readString(std::string *text) {
std::getline(*filestr, *text);
if (!text->empty() && text->at(text->size()-1) == '\r')
text->erase(text->size()-1);
return (filestr->good());
}
bool dxfReaderAscii::readString() {
std::getline(*filestr, strData);
if (!strData.empty() && strData.at(strData.size()-1) == '\r')
strData.erase(strData.size()-1);
DBG(strData); DBG("\n");
return (filestr->good());
}
bool dxfReaderAscii::readInt() {
std::string text;
if (readString(&text)){
intData = atoi(text.c_str());
DBG(intData); DBG("\n");
return true;
} else
return false;
}
bool dxfReaderAscii::readInt32() {
return readInt();
}
bool dxfReaderAscii::readInt64() {
return readInt();
}
bool dxfReaderAscii::readDouble() {
std::string text;
if (readString(&text)){
#if defined(__APPLE__)
int succeeded=sscanf( & (text[0]), "%lg", &doubleData);
if(succeeded != 1) {
DBG("dxfReaderAscii::readDouble(): reading double error: ");
DBG(text);
DBG('\n');
}
#else
std::istringstream sd(text);
sd >> doubleData;
DBG(doubleData); DBG('\n');
#endif
return true;
} else
return false;
}
//saved as int or add a bool member??
bool dxfReaderAscii::readBool() {
std::string text;
if (readString(&text)){
intData = atoi(text.c_str());
DBG(intData); DBG("\n");
return true;
} else
return false;
}
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