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/******************************************************************************
** libDXFrw - Library to read/write DXF files (ascii & binary) **
** **
** Copyright (C) 2011-2015 José F. Soriano, 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 "libdwgr.h"
#include <fstream>
#include <algorithm>
#include <sstream>
#include "intern/drw_dbg.h"
#include "intern/drw_textcodec.h"
#include "intern/dwgreader.h"
#include "intern/dwgreader15.h"
#include "intern/dwgreader18.h"
#include "intern/dwgreader21.h"
#include "intern/dwgreader24.h"
#include "intern/dwgreader27.h"
#define FIRSTHANDLE 48
/*enum sections {
secUnknown,
secHeader,
secTables,
secBlocks,
secEntities,
secObjects
};*/
dwgR::dwgR(){
DRW_DBGSL(DRW_dbg::NONE);
reader = NULL;
// writer = NULL;
applyExt = false;
version = DRW::UNKNOWNV;
error = DRW::BAD_NONE;
}
dwgR::~dwgR(){
if (reader != NULL)
delete reader;
}
void dwgR::setDebug(DRW::DBG_LEVEL lvl){
switch (lvl){
case DRW::DEBUG:
DRW_DBGSL(DRW_dbg::DEBUG);
break;
default:
DRW_DBGSL(DRW_dbg::NONE);
}
}
/*reads metadata and loads image preview*/
bool dwgR::getPreview(std::istream &stream){
bool isOk = false;
isOk = open(&stream);
if (!isOk)
return false;
isOk = reader->readMetaData();
if (isOk) {
isOk = reader->readPreview();
} else
error = DRW::BAD_READ_METADATA;
if (reader != NULL) {
delete reader;
reader = NULL;
}
return isOk;
}
bool dwgR::read(std::istream &stream, DRW_Interface *interface_, bool ext){
applyExt = ext;
iface = interface_;
bool isOk = false;
isOk = open(&stream);
if (!isOk)
return false;
isOk = reader->readMetaData();
if (isOk) {
isOk = reader->readFileHeader();
if (isOk) {
isOk = processDwg();
} else
error = DRW::BAD_READ_FILE_HEADER;
} else
error = DRW::BAD_READ_METADATA;
if (reader != NULL) {
delete reader;
reader = NULL;
}
return isOk;
}
bool dwgR::open(std::istream *stream){
char line[7];
stream->read (line, 6);
line[6]='\0';
DRW_DBG("dwgR::read 2\n");
DRW_DBG("dwgR::read line version: ");
DRW_DBG(line);
DRW_DBG("\n");
if (strcmp(line, "AC1006") == 0)
version = DRW::AC1006;
else if (strcmp(line, "AC1009") == 0) {
version = DRW::AC1009;
// reader = new dwgReader09(&filestr, this);
}else if (strcmp(line, "AC1012") == 0){
version = DRW::AC1012;
reader = new dwgReader15(stream, this);
} else if (strcmp(line, "AC1014") == 0) {
version = DRW::AC1014;
reader = new dwgReader15(stream, this);
} else if (strcmp(line, "AC1015") == 0) {
version = DRW::AC1015;
reader = new dwgReader15(stream, this);
} else if (strcmp(line, "AC1018") == 0){
version = DRW::AC1018;
reader = new dwgReader18(stream, this);
} else if (strcmp(line, "AC1021") == 0) {
version = DRW::AC1021;
reader = new dwgReader21(stream, this);
} else if (strcmp(line, "AC1024") == 0) {
version = DRW::AC1024;
reader = new dwgReader24(stream, this);
} else if (strcmp(line, "AC1027") == 0) {
version = DRW::AC1027;
reader = new dwgReader27(stream, this);
} else
version = DRW::UNKNOWNV;
if (reader == NULL) {
error = DRW::BAD_VERSION;
return false;
}
return true;
}
/********* Reader Process *********/
bool dwgR::processDwg() {
DRW_DBG("dwgR::processDwg() start processing dwg\n");
bool ret;
bool ret2;
DRW_Header hdr;
ret = reader->readDwgHeader(hdr);
if (!ret) {
error = DRW::BAD_READ_HEADER;
}
ret2 = reader->readDwgClasses();
if (ret && !ret2) {
error = DRW::BAD_READ_CLASSES;
ret = ret2;
}
ret2 = reader->readDwgHandles();
if (ret && !ret2) {
error = DRW::BAD_READ_HANDLES;
ret = ret2;
}
ret2 = reader->readDwgTables(hdr);
if (ret && !ret2) {
error = DRW::BAD_READ_TABLES;
ret = ret2;
}
iface->addHeader(&hdr);
for (std::map<duint32, DRW_LType*>::iterator it=reader->ltypemap.begin(); it!=reader->ltypemap.end(); ++it) {
DRW_LType *lt = it->second;
iface->addLType(const_cast<DRW_LType&>(*lt) );
}
for (std::map<duint32, DRW_Layer*>::iterator it=reader->layermap.begin(); it!=reader->layermap.end(); ++it) {
DRW_Layer *ly = it->second;
iface->addLayer(const_cast<DRW_Layer&>(*ly));
}
for (std::map<duint32, DRW_Textstyle*>::iterator it=reader->stylemap.begin(); it!=reader->stylemap.end(); ++it) {
DRW_Textstyle *ly = it->second;
iface->addTextStyle(const_cast<DRW_Textstyle&>(*ly));
}
for (std::map<duint32, DRW_Dimstyle*>::iterator it=reader->dimstylemap.begin(); it!=reader->dimstylemap.end(); ++it) {
DRW_Dimstyle *ly = it->second;
iface->addDimStyle(const_cast<DRW_Dimstyle&>(*ly));
}
for (std::map<duint32, DRW_Vport*>::iterator it=reader->vportmap.begin(); it!=reader->vportmap.end(); ++it) {
DRW_Vport *ly = it->second;
iface->addVport(const_cast<DRW_Vport&>(*ly));
}
for (std::map<duint32, DRW_AppId*>::iterator it=reader->appIdmap.begin(); it!=reader->appIdmap.end(); ++it) {
DRW_AppId *ly = it->second;
iface->addAppId(const_cast<DRW_AppId&>(*ly));
}
ret2 = reader->readDwgBlocks(*iface);
if (ret && !ret2) {
error = DRW::BAD_READ_BLOCKS;
ret = ret2;
}
ret2 = reader->readDwgEntities(*iface);
if (ret && !ret2) {
error = DRW::BAD_READ_ENTITIES;
ret = ret2;
}
ret2 = reader->readDwgObjects(*iface);
if (ret && !ret2) {
error = DRW::BAD_READ_OBJECTS;
ret = ret2;
}
return ret;
}
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