Exemple #1
0
bool QgsMapLayer::writeXML( QDomNode & layer_node, QDomDocument & document )
{
  // general layer metadata
  QDomElement maplayer = document.createElement( "maplayer" );

  // use scale dependent visibility flag
  maplayer.setAttribute( "hasScaleBasedVisibilityFlag", hasScaleBasedVisibility() ? 1 : 0 );
  maplayer.setAttribute( "minimumScale", minimumScale() );
  maplayer.setAttribute( "maximumScale", maximumScale() );

  // ID
  QDomElement layerId = document.createElement( "id" );
  QDomText layerIdText = document.createTextNode( id() );
  layerId.appendChild( layerIdText );

  maplayer.appendChild( layerId );

  // data source
  QDomElement dataSource = document.createElement( "datasource" );

  QString src = source();

  QgsVectorLayer *vlayer = qobject_cast<QgsVectorLayer *>( this );
  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 );

  maplayer.appendChild( dataSource );


  // layer name
  QDomElement layerName = document.createElement( "layername" );
  QDomText layerNameText = document.createTextNode( name() );
  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 );

  maplayer.appendChild( layerName );
  maplayer.appendChild( layerTitle );
  maplayer.appendChild( layerAbstract );

  // timestamp if supported
  if ( timestamp() > QDateTime() )
  {
    QDomElement stamp = document.createElement( "timestamp" );
    QDomText stampText = document.createTextNode( timestamp().toString( Qt::ISODate ) );
    stamp.appendChild( stampText );
    maplayer.appendChild( stamp );
  }

  maplayer.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 );
  maplayer.appendChild( mySrsElement );

  // <transparencyLevelInt>
  QDomElement transparencyLevelIntElement = document.createElement( "transparencyLevelInt" );
  QDomText    transparencyLevelIntText    = document.createTextNode( QString::number( getTransparency() ) );
  transparencyLevelIntElement.appendChild( transparencyLevelIntText );
  maplayer.appendChild( transparencyLevelIntElement );
  // now append layer node to map layer node

  layer_node.appendChild( maplayer );

  writeCustomProperties( maplayer, document );

  return writeXml( maplayer, document );

} // bool QgsMapLayer::writeXML
Exemple #2
0
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
Exemple #3
0
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