bool QgsMapLayer::writeLayerXML( QDomElement& layerElement, QDomDocument& document )
{
// use scale dependent visibility flag
layerElement.setAttribute( "hasScaleBasedVisibilityFlag", hasScaleBasedVisibility() ? 1 : 0 );
layerElement.setAttribute( "minimumScale", QString::number( minimumScale() ) );
layerElement.setAttribute( "maximumScale", QString::number( maximumScale() ) );
// ID
QDomElement layerId = document.createElement( "id" );
QDomText layerIdText = document.createTextNode( id() );
layerId.appendChild( layerIdText );
layerElement.appendChild( layerId );
// data source
QDomElement dataSource = document.createElement( "datasource" );
QString src = source();
QgsVectorLayer *vlayer = qobject_cast<QgsVectorLayer *>( this );
// TODO: what about postgres, mysql and others, they should not go through writePath()
if ( vlayer && vlayer->providerType() == "spatialite" )
{
QgsDataSourceURI uri( src );
QString database = QgsProject::instance()->writePath( uri.database() );
uri.setConnection( uri.host(), uri.port(), database, uri.username(), uri.password() );
src = uri.uri();
}
else if ( vlayer && vlayer->providerType() == "ogr" )
{
QStringList theURIParts = src.split( "|" );
theURIParts[0] = QgsProject::instance()->writePath( theURIParts[0] );
src = theURIParts.join( "|" );
}
else if ( vlayer && vlayer->providerType() == "delimitedtext" )
{
QUrl urlSource = QUrl::fromEncoded( src.toAscii() );
QUrl urlDest = QUrl::fromLocalFile( QgsProject::instance()->writePath( urlSource.toLocalFile() ) );
urlDest.setQueryItems( urlSource.queryItems() );
src = QString::fromAscii( urlDest.toEncoded() );
}
else
{
src = QgsProject::instance()->writePath( src );
}
QDomText dataSourceText = document.createTextNode( src );
dataSource.appendChild( dataSourceText );
layerElement.appendChild( dataSource );
// layer name
QDomElement layerName = document.createElement( "layername" );
QDomText layerNameText = document.createTextNode( originalName() );
layerName.appendChild( layerNameText );
// layer title
QDomElement layerTitle = document.createElement( "title" ) ;
QDomText layerTitleText = document.createTextNode( title() );
layerTitle.appendChild( layerTitleText );
// layer abstract
QDomElement layerAbstract = document.createElement( "abstract" );
QDomText layerAbstractText = document.createTextNode( abstract() );
layerAbstract.appendChild( layerAbstractText );
layerElement.appendChild( layerName );
layerElement.appendChild( layerTitle );
layerElement.appendChild( layerAbstract );
// layer keyword list
QStringList keywordStringList = keywordList().split( "," );
if ( keywordStringList.size() > 0 )
{
QDomElement layerKeywordList = document.createElement( "keywordList" );
for ( int i = 0; i < keywordStringList.size(); ++i )
{
QDomElement layerKeywordValue = document.createElement( "value" );
QDomText layerKeywordText = document.createTextNode( keywordStringList.at( i ).trimmed() );
layerKeywordValue.appendChild( layerKeywordText );
layerKeywordList.appendChild( layerKeywordValue );
}
layerElement.appendChild( layerKeywordList );
}
// layer metadataUrl
QString aDataUrl = dataUrl();
if ( !aDataUrl.isEmpty() )
{
QDomElement layerDataUrl = document.createElement( "dataUrl" ) ;
QDomText layerDataUrlText = document.createTextNode( aDataUrl );
layerDataUrl.appendChild( layerDataUrlText );
layerDataUrl.setAttribute( "format", dataUrlFormat() );
layerElement.appendChild( layerDataUrl );
}
// layer attribution
QString aAttribution = attribution();
if ( !aAttribution.isEmpty() )
{
QDomElement layerAttribution = document.createElement( "attribution" ) ;
QDomText layerAttributionText = document.createTextNode( aAttribution );
layerAttribution.appendChild( layerAttributionText );
layerAttribution.setAttribute( "href", attributionUrl() );
layerElement.appendChild( layerAttribution );
}
// layer metadataUrl
QString aMetadataUrl = metadataUrl();
if ( !aMetadataUrl.isEmpty() )
{
QDomElement layerMetadataUrl = document.createElement( "metadataUrl" ) ;
QDomText layerMetadataUrlText = document.createTextNode( aMetadataUrl );
layerMetadataUrl.appendChild( layerMetadataUrlText );
layerMetadataUrl.setAttribute( "type", metadataUrlType() );
layerMetadataUrl.setAttribute( "format", metadataUrlFormat() );
layerElement.appendChild( layerMetadataUrl );
}
// timestamp if supported
if ( timestamp() > QDateTime() )
{
QDomElement stamp = document.createElement( "timestamp" );
QDomText stampText = document.createTextNode( timestamp().toString( Qt::ISODate ) );
stamp.appendChild( stampText );
layerElement.appendChild( stamp );
}
layerElement.appendChild( layerName );
// zorder
// This is no longer stored in the project file. It is superfluous since the layers
// are written and read in the proper order.
// spatial reference system id
QDomElement mySrsElement = document.createElement( "srs" );
mCRS->writeXML( mySrsElement, document );
layerElement.appendChild( mySrsElement );
#if 0
// <transparencyLevelInt>
QDomElement transparencyLevelIntElement = document.createElement( "transparencyLevelInt" );
QDomText transparencyLevelIntText = document.createTextNode( QString::number( getTransparency() ) );
transparencyLevelIntElement.appendChild( transparencyLevelIntText );
maplayer.appendChild( transparencyLevelIntElement );
#endif
// now append layer node to map layer node
writeCustomProperties( layerElement, document );
return writeXml( layerElement, document );
} // bool QgsMapLayer::writeXML
bool QgsMapLayer::writeLayerXML( QDomElement& layerElement, QDomDocument& document, const QString& relativeBasePath )
{
// use scale dependent visibility flag
layerElement.setAttribute( "hasScaleBasedVisibilityFlag", hasScaleBasedVisibility() ? 1 : 0 );
layerElement.setAttribute( "minimumScale", QString::number( minimumScale() ) );
layerElement.setAttribute( "maximumScale", QString::number( maximumScale() ) );
// ID
QDomElement layerId = document.createElement( "id" );
QDomText layerIdText = document.createTextNode( id() );
layerId.appendChild( layerIdText );
layerElement.appendChild( layerId );
// data source
QDomElement dataSource = document.createElement( "datasource" );
QString src = source();
QgsVectorLayer *vlayer = qobject_cast<QgsVectorLayer *>( this );
// TODO: what about postgres, mysql and others, they should not go through writePath()
if ( vlayer && vlayer->providerType() == "spatialite" )
{
QgsDataSourceURI uri( src );
QString database = QgsProject::instance()->writePath( uri.database(), relativeBasePath );
uri.setConnection( uri.host(), uri.port(), database, uri.username(), uri.password() );
src = uri.uri();
}
else if ( vlayer && vlayer->providerType() == "ogr" )
{
QStringList theURIParts = src.split( "|" );
theURIParts[0] = QgsProject::instance()->writePath( theURIParts[0], relativeBasePath );
src = theURIParts.join( "|" );
}
else if ( vlayer && vlayer->providerType() == "gpx" )
{
QStringList theURIParts = src.split( "?" );
theURIParts[0] = QgsProject::instance()->writePath( theURIParts[0], relativeBasePath );
src = theURIParts.join( "?" );
}
else if ( vlayer && vlayer->providerType() == "delimitedtext" )
{
QUrl urlSource = QUrl::fromEncoded( src.toAscii() );
QUrl urlDest = QUrl::fromLocalFile( QgsProject::instance()->writePath( urlSource.toLocalFile(), relativeBasePath ) );
urlDest.setQueryItems( urlSource.queryItems() );
src = QString::fromAscii( urlDest.toEncoded() );
}
else
{
bool handled = false;
if ( !vlayer )
{
QgsRasterLayer *rlayer = qobject_cast<QgsRasterLayer *>( this );
// Update path for subdataset
if ( rlayer && rlayer->providerType() == "gdal" )
{
if ( src.startsWith( "NETCDF:" ) )
{
// NETCDF:filename:variable
// filename can be quoted with " as it can contain colons
QRegExp r( "NETCDF:(.+):([^:]+)" );
if ( r.exactMatch( src ) )
{
QString filename = r.cap( 1 );
if ( filename.startsWith( '"' ) && filename.endsWith( '"' ) )
filename = filename.mid( 1, filename.length() - 2 );
src = "NETCDF:\"" + QgsProject::instance()->writePath( filename, relativeBasePath ) + "\":" + r.cap( 2 );
handled = true;
}
}
else if ( src.startsWith( "HDF4_SDS:" ) )
{
// HDF4_SDS:subdataset_type:file_name:subdataset_index
// filename can be quoted with " as it can contain colons
QRegExp r( "HDF4_SDS:([^:]+):(.+):([^:]+)" );
if ( r.exactMatch( src ) )
{
QString filename = r.cap( 2 );
if ( filename.startsWith( '"' ) && filename.endsWith( '"' ) )
filename = filename.mid( 1, filename.length() - 2 );
src = "HDF4_SDS:" + r.cap( 1 ) + ":\"" + QgsProject::instance()->writePath( filename, relativeBasePath ) + "\":" + r.cap( 3 );
handled = true;
}
}
else if ( src.startsWith( "HDF5:" ) )
{
// HDF5:file_name:subdataset
// filename can be quoted with " as it can contain colons
QRegExp r( "HDF5:(.+):([^:]+)" );
if ( r.exactMatch( src ) )
{
QString filename = r.cap( 1 );
if ( filename.startsWith( '"' ) && filename.endsWith( '"' ) )
filename = filename.mid( 1, filename.length() - 2 );
src = "HDF5:\"" + QgsProject::instance()->writePath( filename, relativeBasePath ) + "\":" + r.cap( 2 );
handled = true;
}
}
else if ( src.contains( QRegExp( "^(NITF_IM|RADARSAT_2_CALIB):" ) ) )
{
// NITF_IM:0:filename
// RADARSAT_2_CALIB:?:filename
QRegExp r( "([^:]+):([^:]+):(.+)" );
if ( r.exactMatch( src ) )
{
src = r.cap( 1 ) + ":" + r.cap( 2 ) + ":" + QgsProject::instance()->writePath( r.cap( 3 ), relativeBasePath );
handled = true;
}
}
}
}
if ( !handled )
src = QgsProject::instance()->writePath( src, relativeBasePath );
}
QDomText dataSourceText = document.createTextNode( src );
dataSource.appendChild( dataSourceText );
layerElement.appendChild( dataSource );
// layer name
QDomElement layerName = document.createElement( "layername" );
QDomText layerNameText = document.createTextNode( originalName() );
layerName.appendChild( layerNameText );
// layer title
QDomElement layerTitle = document.createElement( "title" );
QDomText layerTitleText = document.createTextNode( title() );
layerTitle.appendChild( layerTitleText );
// layer abstract
QDomElement layerAbstract = document.createElement( "abstract" );
QDomText layerAbstractText = document.createTextNode( abstract() );
layerAbstract.appendChild( layerAbstractText );
layerElement.appendChild( layerName );
layerElement.appendChild( layerTitle );
layerElement.appendChild( layerAbstract );
// layer keyword list
QStringList keywordStringList = keywordList().split( "," );
if ( keywordStringList.size() > 0 )
{
QDomElement layerKeywordList = document.createElement( "keywordList" );
for ( int i = 0; i < keywordStringList.size(); ++i )
{
QDomElement layerKeywordValue = document.createElement( "value" );
QDomText layerKeywordText = document.createTextNode( keywordStringList.at( i ).trimmed() );
layerKeywordValue.appendChild( layerKeywordText );
layerKeywordList.appendChild( layerKeywordValue );
}
layerElement.appendChild( layerKeywordList );
}
// layer metadataUrl
QString aDataUrl = dataUrl();
if ( !aDataUrl.isEmpty() )
{
QDomElement layerDataUrl = document.createElement( "dataUrl" );
QDomText layerDataUrlText = document.createTextNode( aDataUrl );
layerDataUrl.appendChild( layerDataUrlText );
layerDataUrl.setAttribute( "format", dataUrlFormat() );
layerElement.appendChild( layerDataUrl );
}
// layer legendUrl
QString aLegendUrl = legendUrl();
if ( !aLegendUrl.isEmpty() )
{
QDomElement layerLegendUrl = document.createElement( "legendUrl" );
QDomText layerLegendUrlText = document.createTextNode( aLegendUrl );
layerLegendUrl.appendChild( layerLegendUrlText );
layerLegendUrl.setAttribute( "format", legendUrlFormat() );
layerElement.appendChild( layerLegendUrl );
}
// layer attribution
QString aAttribution = attribution();
if ( !aAttribution.isEmpty() )
{
QDomElement layerAttribution = document.createElement( "attribution" );
QDomText layerAttributionText = document.createTextNode( aAttribution );
layerAttribution.appendChild( layerAttributionText );
layerAttribution.setAttribute( "href", attributionUrl() );
layerElement.appendChild( layerAttribution );
}
// layer metadataUrl
QString aMetadataUrl = metadataUrl();
if ( !aMetadataUrl.isEmpty() )
{
QDomElement layerMetadataUrl = document.createElement( "metadataUrl" );
QDomText layerMetadataUrlText = document.createTextNode( aMetadataUrl );
layerMetadataUrl.appendChild( layerMetadataUrlText );
layerMetadataUrl.setAttribute( "type", metadataUrlType() );
layerMetadataUrl.setAttribute( "format", metadataUrlFormat() );
layerElement.appendChild( layerMetadataUrl );
}
// timestamp if supported
if ( timestamp() > QDateTime() )
{
QDomElement stamp = document.createElement( "timestamp" );
QDomText stampText = document.createTextNode( timestamp().toString( Qt::ISODate ) );
stamp.appendChild( stampText );
layerElement.appendChild( stamp );
}
layerElement.appendChild( layerName );
// zorder
// This is no longer stored in the project file. It is superfluous since the layers
// are written and read in the proper order.
// spatial reference system id
QDomElement mySrsElement = document.createElement( "srs" );
mCRS->writeXML( mySrsElement, document );
layerElement.appendChild( mySrsElement );
#if 0
// <transparencyLevelInt>
QDomElement transparencyLevelIntElement = document.createElement( "transparencyLevelInt" );
QDomText transparencyLevelIntText = document.createTextNode( QString::number( getTransparency() ) );
transparencyLevelIntElement.appendChild( transparencyLevelIntText );
maplayer.appendChild( transparencyLevelIntElement );
#endif
// now append layer node to map layer node
writeCustomProperties( layerElement, document );
return writeXml( layerElement, document );
} // bool QgsMapLayer::writeXML
