QString QgsShapeFile::getFeatureClass(){
OGRFeature *feat = ogrLayer->GetNextFeature();
if(feat){
OGRGeometry *geom = feat->GetGeometryRef();
if(geom){
geom_type = QString(geom->getGeometryName());
char * esc_str = new char[geom_type.length()*2+1];
PQescapeString(esc_str, (const char *)geom_type, geom_type.length());
geom_type = QString(esc_str);
delete[] esc_str;
QString file(filename);
file.replace(file.length()-3, 3, "dbf");
// open the dbf file
std::ifstream dbf((const char*)file, std::ios::in | std::ios::binary);
// read header
DbaseHeader dbh;
dbf.read((char *)&dbh, sizeof(dbh));
Fda fda;
QString str_type = "varchar(";
for(int field_count = 0, bytes_read = sizeof(dbh); bytes_read < dbh.size_hdr-1; field_count++, bytes_read +=sizeof(fda)){
dbf.read((char *)&fda, sizeof(fda));
switch(fda.field_type){
case 'N': if((int)fda.field_decimal>0)
column_types.push_back("float");
else
column_types.push_back("int");
break;
case 'F': column_types.push_back("float");
break;
case 'D': column_types.push_back("date");
break;
case 'C':
str_type= QString("varchar(%1)").arg(fda.field_length);
column_types.push_back(str_type);
break;
case 'L': column_types.push_back("boolean");
break;
default:
column_types.push_back("varchar(256)");
break;
}
}
dbf.close();
int numFields = feat->GetFieldCount();
for(int n=0; n<numFields; n++)
column_names.push_back(feat->GetFieldDefnRef(n)->GetNameRef());
}else valid = false;
delete feat;
}else valid = false;
ogrLayer->ResetReading();
return valid?geom_type:NULL;
}
void CLDS2_Database::Create(void)
{
LOG_POST_X(1, Info << "LDS2: Creating database " << m_DbFile);
// Close the connection if any
x_ResetDbConnection();
// Delete all data
CFile dbf(m_DbFile);
if ( dbf.Exists() ) {
dbf.Remove();
}
// Initialize connection and create tables:
x_ExecuteSqls(kLDS2_CreateDB,
sizeof(kLDS2_CreateDB)/sizeof(kLDS2_CreateDB[0]));
}
QString Database::nextFileName()
{
if (m_lastFileName.isEmpty()) {
Parsers::DatabaseParser parser;
QFile dbf(m_dbfile);
parser.parse(&dbf);
parser.gc();
m_lastFileName = parser.lastFileName();
}
if (m_lastFileName.isEmpty()) {
m_lastFileName = "project0.ktn";
} else {
QRegExp reg("project(\\d+).ktn");
if (reg.indexIn(m_lastFileName) != -1) {
QStringList list = reg.capturedTexts();
m_lastFileName = QString("project%1.ktn").arg(list[1].toInt()+1);
}
}
return m_lastFileName;
}
QString QgsShapeFile::getFeatureClass()
{
// scan the whole layer to try to determine the geometry
// type.
qApp->processEvents();
isMulti = scanGeometries();
OGRFeatureH feat;
// skip features without geometry
while (( feat = OGR_L_GetNextFeature( ogrLayer ) ) != NULL )
{
if ( OGR_F_GetGeometryRef( feat ) )
break;
}
if ( feat )
{
OGRGeometryH geom = OGR_F_GetGeometryRef( feat );
if ( geom )
{
/* OGR doesn't appear to report geometry type properly
* for a layer containing both polygon and multipolygon
* entities
*
// get the feature type from the layer
OGRFeatureDefn * gDef = ogrLayer->GetLayerDefn();
OGRwkbGeometryType gType = gDef->GetGeomType();
geom_type = QGis::qgisFeatureTypes[gType];
*/
//geom_type = QString(geom->getGeometryName());
//geom_type = "GEOMETRY";
QgsDebugMsg( "Preparing to escape " + geom_type );
char * esc_str = new char[geom_type.length()*2+1];
PQescapeString( esc_str, geom_type.toUtf8(), geom_type.length() );
geom_type = QString( esc_str );
QgsDebugMsg( "After escaping, geom_type is : " + geom_type );
delete[] esc_str;
QString file( fileName );
file.replace( file.length() - 3, 3, "dbf" );
// open the dbf file
std::ifstream dbf( file.toUtf8(), std::ios::in | std::ios::binary );
// read header
DbaseHeader dbh;
dbf.read(( char * )&dbh, sizeof( dbh ) );
// Check byte order
if ( htonl( 1 ) == 1 )
{
/* DbaseHeader is stored in little-endian format.
* The num_recs, size_hdr and size_rec fields must be byte-swapped when read
* on a big-endian processor. Currently only size_hdr is used.
*/
unsigned char *byte = reinterpret_cast<unsigned char *>( &dbh.size_hdr );
unsigned char t = *byte; *byte = *( byte + 1 ); *( byte + 1 ) = t;
}
Fda fda;
QString str_type = "varchar(";
for ( int field_count = 0, bytes_read = sizeof( dbh ); bytes_read < dbh.size_hdr - 1; field_count++, bytes_read += sizeof( fda ) )
{
dbf.read(( char * )&fda, sizeof( fda ) );
switch ( fda.field_type )
{
case 'N':
if (( int )fda.field_decimal > 0 )
column_types.push_back( "float" );
else
column_types.push_back( "int" );
break;
case 'F': column_types.push_back( "float" );
break;
case 'D': column_types.push_back( "date" );
break;
case 'C':
str_type = QString( "varchar(%1)" ).arg( fda.field_length );
column_types.push_back( str_type );
break;
case 'L': column_types.push_back( "boolean" );
break;
default:
column_types.push_back( "varchar(256)" );
break;
}
}
dbf.close();
int numFields = OGR_F_GetFieldCount( feat );
for ( int n = 0; n < numFields; n++ )
{
QString s = codec->toUnicode( OGR_Fld_GetNameRef( OGR_F_GetFieldDefnRef( feat, n ) ) );
column_names.push_back( s );
}
}
else valid = false;
OGR_F_Destroy( feat );
}
else valid = false;
OGR_L_ResetReading( ogrLayer );
return valid ? geom_type : QString::null;
}
