C++ (Cpp) providerType示例

示例#1

文件： qgsmeshlayer.cpp 项目： lyhkop/QGIS

bool QgsMeshLayer::writeXml( QDomNode &layer_node, QDomDocument &document, const QgsReadWriteContext &context ) const
{
  // first get the layer element so that we can append the type attribute
  QDomElement mapLayerNode = layer_node.toElement();

  if ( mapLayerNode.isNull() || ( QLatin1String( "maplayer" ) != mapLayerNode.nodeName() ) )
  {
    QgsDebugMsgLevel( QStringLiteral( "can't find <maplayer>" ), 2 );
    return false;
  }

  mapLayerNode.setAttribute( QStringLiteral( "type" ), QStringLiteral( "mesh" ) );

  // add provider node
  if ( mDataProvider )
  {
    QDomElement provider  = document.createElement( QStringLiteral( "provider" ) );
    QDomText providerText = document.createTextNode( providerType() );
    provider.appendChild( providerText );
    layer_node.appendChild( provider );
  }

  // renderer specific settings
  QString errorMsg;
  return writeSymbology( layer_node, document, errorMsg, context );
}

示例#2

文件： qgsprojectbadlayerguihandler.cpp 项目： JudeHu/QGIS

bool QgsProjectBadLayerGuiHandler::findLayer( QString const & fileFilters, QDomNode const & constLayerNode )
{
  // XXX actually we could possibly get away with a copy of the node
  QDomNode & layerNode = const_cast<QDomNode&>( constLayerNode );

  bool retVal = false;

  switch ( providerType( layerNode ) )
  {
    case IS_FILE:
      QgsDebugMsg( "layer is file based" );
      retVal = findMissingFile( fileFilters, layerNode );
      break;

    case IS_DATABASE:
      QgsDebugMsg( "layer is database based" );
      break;

    case IS_URL:
      QgsDebugMsg( "layer is URL based" );
      break;

    case IS_Unknown:
      QgsDebugMsg( "layer has an unknown type" );
      break;
  }
  return retVal;
} // findLayer

示例#3

文件： qgsmeshlayer.cpp 项目： lyhkop/QGIS

QString QgsMeshLayer::encodedSource( const QString &source, const QgsReadWriteContext &context ) const
{
  QString src( source );
  if ( providerType() == QLatin1String( "mdal" ) )
  {
    src = context.pathResolver().writePath( src );
  }
  return src;
}

示例#4

文件： qgsmeshlayer.cpp 项目： anitagraser/QGIS

bool QgsMeshLayer::writeXml( QDomNode &layer_node, QDomDocument &document, const QgsReadWriteContext &context ) const
{
  // first get the layer element so that we can append the type attribute
  QDomElement mapLayerNode = layer_node.toElement();

  if ( mapLayerNode.isNull() || ( QLatin1String( "maplayer" ) != mapLayerNode.nodeName() ) )
  {
    QgsDebugMsgLevel( QStringLiteral( "can't find <maplayer>" ), 2 );
    return false;
  }

  mapLayerNode.setAttribute( QStringLiteral( "type" ), QStringLiteral( "mesh" ) );

  // add provider node
  if ( mDataProvider )
  {
    QDomElement provider  = document.createElement( QStringLiteral( "provider" ) );
    QDomText providerText = document.createTextNode( providerType() );
    provider.appendChild( providerText );
    layer_node.appendChild( provider );

    const QStringList extraDatasetUris = mDataProvider->extraDatasets();
    QDomElement elemExtraDatasets = document.createElement( QStringLiteral( "extra-datasets" ) );
    for ( const QString &uri : extraDatasetUris )
    {
      QString path = context.pathResolver().writePath( uri );
      QDomElement elemUri = document.createElement( QStringLiteral( "uri" ) );
      elemUri.appendChild( document.createTextNode( path ) );
      elemExtraDatasets.appendChild( elemUri );
    }
    layer_node.appendChild( elemExtraDatasets );
  }

  // renderer specific settings
  QString errorMsg;
  return writeSymbology( layer_node, document, errorMsg, context );
}