void QgsGml::startElement( const XML_Char* el, const XML_Char** attr )
{
QString elementName( QString::fromUtf8( el ) );
ParseMode theParseMode( mParseModeStack.isEmpty() ? none : mParseModeStack.top() );
QStringList splitName = elementName.split( NS_SEPARATOR );
QString localName = splitName.last();
QString ns = splitName.size() > 1 ? splitName.first() : "";
if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "coordinates" )
{
mParseModeStack.push( QgsGml::coordinate );
mCoorMode = QgsGml::coordinate;
mStringCash.clear();
mCoordinateSeparator = readAttribute( "cs", attr );
if ( mCoordinateSeparator.isEmpty() )
{
mCoordinateSeparator = ",";
}
mTupleSeparator = readAttribute( "ts", attr );
if ( mTupleSeparator.isEmpty() )
{
mTupleSeparator = " ";
}
}
if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "pos"
|| elementName == GML_NAMESPACE + NS_SEPARATOR + "posList" )
{
mParseModeStack.push( QgsGml::posList );
mCoorMode = QgsGml::posList;
mStringCash.clear();
QString dimension = readAttribute( "srsDimension", attr );
bool ok;
mDimension = dimension.toInt( &ok );
if ( dimension.isEmpty() || !ok )
{
mDimension = 2;
}
}
else if ( localName == mGeometryAttribute )
{
mParseModeStack.push( QgsGml::geometry );
}
//else if ( mParseModeStack.size() == 0 && elementName == GML_NAMESPACE + NS_SEPARATOR + "boundedBy" )
else if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "boundedBy" )
{
mParseModeStack.push( QgsGml::boundingBox );
}
else if ( theParseMode == none && localName == mTypeName )
{
Q_ASSERT( !mCurrentFeature );
mCurrentFeature = new QgsFeature( mFeatureCount );
QgsAttributes attributes( mThematicAttributes.size() ); //add empty attributes
mCurrentFeature->setAttributes( attributes );
mParseModeStack.push( QgsGml::feature );
mCurrentFeatureId = readAttribute( "fid", attr );
}
else if ( theParseMode == boundingBox && elementName == GML_NAMESPACE + NS_SEPARATOR + "Box" )
{
//read attribute srsName="EPSG:26910"
int epsgNr;
if ( readEpsgFromAttribute( epsgNr, attr ) != 0 )
{
QgsDebugMsg( "error, could not get epsg id" );
}
}
else if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "Polygon" )
{
mCurrentWKBFragments.push_back( QList<unsigned char*>() );
mCurrentWKBFragmentSizes.push_back( QList<int>() );
}
else if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "MultiPoint" )
{
mParseModeStack.push( QgsGml::multiPoint );
//we need one nested list for intermediate WKB
mCurrentWKBFragments.push_back( QList<unsigned char*>() );
mCurrentWKBFragmentSizes.push_back( QList<int>() );
}
else if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "MultiLineString" )
{
mParseModeStack.push( QgsGml::multiLine );
//we need one nested list for intermediate WKB
mCurrentWKBFragments.push_back( QList<unsigned char*>() );
mCurrentWKBFragmentSizes.push_back( QList<int>() );
}
else if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "MultiPolygon" )
{
mParseModeStack.push( QgsGml::multiPolygon );
}
else if ( theParseMode == feature && mThematicAttributes.contains( localName ) )
{
mParseModeStack.push( QgsGml::attribute );
mAttributeName = localName;
mStringCash.clear();
}
// QGIS server (2.2) is using:
// <Attribute value="My description" name="desc"/>
else if ( theParseMode == feature
&& localName.compare( "attribute", Qt::CaseInsensitive ) == 0 )
{
QString name = readAttribute( "name", attr );
if ( mThematicAttributes.contains( name ) )
{
QString value = readAttribute( "value", attr );
setAttribute( name, value );
}
}
if ( mEpsg == 0 && ( localName == "Point" || localName == "MultiPoint" ||
localName == "LineString" || localName == "MultiLineString" ||
localName == "Polygon" || localName == "MultiPolygon" ) )
{
if ( readEpsgFromAttribute( mEpsg, attr ) != 0 )
{
QgsDebugMsg( "error, could not get epsg id" );
}
else
{
QgsDebugMsg( QString( "mEpsg = %1" ).arg( mEpsg ) );
}
}
}
void QgsGml::endElement( const XML_Char* el )
{
QString elementName( QString::fromUtf8( el ) );
ParseMode theParseMode( mParseModeStack.isEmpty() ? none : mParseModeStack.top() );
QStringList splitName = elementName.split( NS_SEPARATOR );
QString localName = splitName.last();
QString ns = splitName.size() > 1 ? splitName.first() : "";
if (( theParseMode == coordinate && elementName == GML_NAMESPACE + NS_SEPARATOR + "coordinates" )
|| ( theParseMode == posList && (
elementName == GML_NAMESPACE + NS_SEPARATOR + "pos"
|| elementName == GML_NAMESPACE + NS_SEPARATOR + "posList" ) ) )
{
mParseModeStack.pop();
}
else if ( theParseMode == attribute && localName == mAttributeName ) //add a thematic attribute to the feature
{
mParseModeStack.pop();
setAttribute( mAttributeName, mStringCash );
}
else if ( theParseMode == geometry && localName == mGeometryAttribute )
{
mParseModeStack.pop();
}
else if ( theParseMode == boundingBox && elementName == GML_NAMESPACE + NS_SEPARATOR + "boundedBy" )
{
//create bounding box from mStringCash
if ( createBBoxFromCoordinateString( mCurrentExtent, mStringCash ) != 0 )
{
QgsDebugMsg( "creation of bounding box failed" );
}
mParseModeStack.pop();
}
else if ( theParseMode == feature && localName == mTypeName )
{
Q_ASSERT( mCurrentFeature );
if ( mCurrentWKBSize > 0 )
{
mCurrentFeature->setGeometryAndOwnership( mCurrentWKB, mCurrentWKBSize );
}
else if ( !mCurrentExtent.isEmpty() )
{
mCurrentFeature->setGeometry( QgsGeometry::fromRect( mCurrentExtent ) );
}
else
{
mCurrentFeature->setGeometry( 0 );
}
mCurrentFeature->setValid( true );
mFeatures.insert( mCurrentFeature->id(), mCurrentFeature );
if ( !mCurrentFeatureId.isEmpty() )
{
mIdMap.insert( mCurrentFeature->id(), mCurrentFeatureId );
}
mCurrentFeature = 0;
++mFeatureCount;
mParseModeStack.pop();
}
else if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "Point" )
{
QList<QgsPoint> pointList;
if ( pointsFromString( pointList, mStringCash ) != 0 )
{
//error
}
if ( pointList.count() == 0 )
return; // error
if ( theParseMode == QgsGml::geometry )
{
//directly add WKB point to the feature
if ( getPointWKB( &mCurrentWKB, &mCurrentWKBSize, *( pointList.begin() ) ) != 0 )
{
//error
}
if ( *mWkbType != QGis::WKBMultiPoint ) //keep multitype in case of geometry type mix
{
*mWkbType = QGis::WKBPoint;
}
}
else //multipoint, add WKB as fragment
{
unsigned char* wkb = 0;
int wkbSize = 0;
QList<unsigned char*> wkbList;
QList<int> wkbSizeList;
if ( getPointWKB( &wkb, &wkbSize, *( pointList.begin() ) ) != 0 )
{
//error
}
if ( !mCurrentWKBFragments.isEmpty() )
{
mCurrentWKBFragments.last().push_back( wkb );
mCurrentWKBFragmentSizes.last().push_back( wkbSize );
}
else
{
QgsDebugMsg( "No wkb fragments" );
}
}
}
else if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "LineString" )
{
//add WKB point to the feature
QList<QgsPoint> pointList;
if ( pointsFromString( pointList, mStringCash ) != 0 )
{
//error
}
if ( theParseMode == QgsGml::geometry )
{
if ( getLineWKB( &mCurrentWKB, &mCurrentWKBSize, pointList ) != 0 )
{
//error
}
if ( *mWkbType != QGis::WKBMultiLineString )//keep multitype in case of geometry type mix
{
*mWkbType = QGis::WKBLineString;
}
}
else //multiline, add WKB as fragment
{
unsigned char* wkb = 0;
int wkbSize = 0;
QList<unsigned char*> wkbList;
QList<int> wkbSizeList;
if ( getLineWKB( &wkb, &wkbSize, pointList ) != 0 )
{
//error
}
if ( !mCurrentWKBFragments.isEmpty() )
{
mCurrentWKBFragments.last().push_back( wkb );
mCurrentWKBFragmentSizes.last().push_back( wkbSize );
}
else
{
QgsDebugMsg( "no wkb fragments" );
}
}
}
else if (( theParseMode == geometry || theParseMode == multiPolygon ) && elementName == GML_NAMESPACE + NS_SEPARATOR + "LinearRing" )
{
QList<QgsPoint> pointList;
if ( pointsFromString( pointList, mStringCash ) != 0 )
{
//error
}
unsigned char* wkb = 0;
int wkbSize = 0;
if ( getRingWKB( &wkb, &wkbSize, pointList ) != 0 )
{
//error
}
if ( !mCurrentWKBFragments.isEmpty() )
{
mCurrentWKBFragments.last().push_back( wkb );
mCurrentWKBFragmentSizes.last().push_back( wkbSize );
}
else
{
QgsDebugMsg( "no wkb fragments" );
}
}
else if (( theParseMode == geometry || theParseMode == multiPolygon ) && elementName == GML_NAMESPACE + NS_SEPARATOR + "Polygon" )
{
if ( *mWkbType != QGis::WKBMultiPolygon )//keep multitype in case of geometry type mix
{
*mWkbType = QGis::WKBPolygon;
}
if ( theParseMode == geometry )
{
createPolygonFromFragments();
}
}
else if ( theParseMode == multiPoint && elementName == GML_NAMESPACE + NS_SEPARATOR + "MultiPoint" )
{
*mWkbType = QGis::WKBMultiPoint;
mParseModeStack.pop();
createMultiPointFromFragments();
}
else if ( theParseMode == multiLine && elementName == GML_NAMESPACE + NS_SEPARATOR + "MultiLineString" )
{
*mWkbType = QGis::WKBMultiLineString;
mParseModeStack.pop();
createMultiLineFromFragments();
}
else if ( theParseMode == multiPolygon && elementName == GML_NAMESPACE + NS_SEPARATOR + "MultiPolygon" )
{
*mWkbType = QGis::WKBMultiPolygon;
mParseModeStack.pop();
createMultiPolygonFromFragments();
}
}
void QgsGml::startElement( const XML_Char* el, const XML_Char** attr )
{
QString elementName( QString::fromUtf8( el ) );
ParseMode theParseMode( mParseModeStack.isEmpty() ? none : mParseModeStack.top() );
QStringList splitName = elementName.split( NS_SEPARATOR );
QString localName = splitName.last();
QString ns = splitName.size() > 1 ? splitName.first() : "";
if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "coordinates" )
{
mParseModeStack.push( QgsGml::coordinate );
mStringCash.clear();
mCoordinateSeparator = readAttribute( "cs", attr );
if ( mCoordinateSeparator.isEmpty() )
{
mCoordinateSeparator = ",";
}
mTupleSeparator = readAttribute( "ts", attr );
if ( mTupleSeparator.isEmpty() )
{
mTupleSeparator = " ";
}
}
else if ( localName == mGeometryAttribute )
{
mParseModeStack.push( QgsGml::geometry );
}
//else if ( mParseModeStack.size() == 0 && elementName == GML_NAMESPACE + NS_SEPARATOR + "boundedBy" )
else if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "boundedBy" )
{
mParseModeStack.push( QgsGml::boundingBox );
}
else if ( theParseMode == none && localName == mTypeName )
{
Q_ASSERT( !mCurrentFeature );
mCurrentFeature = new QgsFeature( mFeatureCount );
QgsAttributes attributes( mThematicAttributes.size() ); //add empty attributes
mCurrentFeature->setAttributes( attributes );
mParseModeStack.push( QgsGml::feature );
mCurrentFeatureId = readAttribute( "fid", attr );
}
else if ( theParseMode == boundingBox && elementName == GML_NAMESPACE + NS_SEPARATOR + "Box" )
{
//read attribute srsName="EPSG:26910"
int epsgNr;
if ( readEpsgFromAttribute( epsgNr, attr ) != 0 )
{
QgsDebugMsg( "error, could not get epsg id" );
}
}
else if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "Polygon" )
{
mCurrentWKBFragments.push_back( QList<unsigned char*>() );
mCurrentWKBFragmentSizes.push_back( QList<int>() );
}
else if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "MultiPoint" )
{
mParseModeStack.push( QgsGml::multiPoint );
//we need one nested list for intermediate WKB
mCurrentWKBFragments.push_back( QList<unsigned char*>() );
mCurrentWKBFragmentSizes.push_back( QList<int>() );
}
else if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "MultiLineString" )
{
mParseModeStack.push( QgsGml::multiLine );
//we need one nested list for intermediate WKB
mCurrentWKBFragments.push_back( QList<unsigned char*>() );
mCurrentWKBFragmentSizes.push_back( QList<int>() );
}
else if ( elementName == GML_NAMESPACE + NS_SEPARATOR + "MultiPolygon" )
{
mParseModeStack.push( QgsGml::multiPolygon );
}
else if ( theParseMode == feature && mThematicAttributes.contains( localName ) )
{
mParseModeStack.push( QgsGml::attribute );
mAttributeName = localName;
mStringCash.clear();
}
}
