sharpetronics/QGIS
1
0
Fork 0
mirror of https://github.com/qgis/QGIS.git synced 2025-02-28 00:17:30 -05:00
Code Issues Packages Projects Releases Wiki Activity

[afs] Auto populate layer metadata from provider metadata

Browse Source
This commit is contained in:
Nyall Dawson 2018-02-20 13:49:29 +10:00
parent 6a9f9869da
commit f7559d3022
2 changed files with 55 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
src/providers/arcgisrest/qgsafsprovider.cpp
View File

@ -73,25 +73,43 @@ QgsAfsProvider::QgsAfsProvider( const QString &uri )
if ( !xminOk || !yminOk || !xmaxOk || !ymaxOk )
mSharedData->mExtent = QgsRectangle();
}
QVariantMap layerExtentMap = layerData[QStringLiteral( "extent" )].toMap();
bool xminOk = false, yminOk = false, xmaxOk = false, ymaxOk = false;
QgsRectangle originalExtent;
originalExtent.setXMinimum( layerExtentMap[QStringLiteral( "xmin" )].toDouble( &xminOk ) );
originalExtent.setYMinimum( layerExtentMap[QStringLiteral( "ymin" )].toDouble( &yminOk ) );
originalExtent.setXMaximum( layerExtentMap[QStringLiteral( "xmax" )].toDouble( &xmaxOk ) );
originalExtent.setYMaximum( layerExtentMap[QStringLiteral( "ymax" )].toDouble( &ymaxOk ) );
if ( mSharedData->mExtent.isEmpty() && ( !xminOk || !yminOk || !xmaxOk || !ymaxOk ) )
{
appendError( QgsErrorMessage( tr( "Could not retrieve layer extent" ), QStringLiteral( "AFSProvider" ) ) );
return;
}
QgsCoordinateReferenceSystem extentCrs = QgsArcGisRestUtils::parseSpatialReference( layerExtentMap[QStringLiteral( "spatialReference" )].toMap() );
if ( mSharedData->mExtent.isEmpty() && !extentCrs.isValid() )
{
appendError( QgsErrorMessage( tr( "Could not parse spatial reference" ), QStringLiteral( "AFSProvider" ) ) );
return;
}
if ( xminOk && yminOk && xmaxOk && ymaxOk )
{
QgsLayerMetadata::SpatialExtent spatialExtent;
spatialExtent.bounds = QgsBox3d( originalExtent );
spatialExtent.extentCrs = extentCrs;
QgsLayerMetadata::Extent metadataExtent;
metadataExtent.setSpatialExtents( QList< QgsLayerMetadata::SpatialExtent >() << spatialExtent );
mLayerMetadata.setExtent( metadataExtent );
}
if ( extentCrs.isValid() )
{
mLayerMetadata.setCrs( extentCrs );
}
if ( mSharedData->mExtent.isEmpty() )
{
QVariantMap layerExtentMap = layerData[QStringLiteral( "extent" )].toMap();
bool xminOk = false, yminOk = false, xmaxOk = false, ymaxOk = false;
mSharedData->mExtent.setXMinimum( layerExtentMap[QStringLiteral( "xmin" )].toDouble( &xminOk ) );
mSharedData->mExtent.setYMinimum( layerExtentMap[QStringLiteral( "ymin" )].toDouble( &yminOk ) );
mSharedData->mExtent.setXMaximum( layerExtentMap[QStringLiteral( "xmax" )].toDouble( &xmaxOk ) );
mSharedData->mExtent.setYMaximum( layerExtentMap[QStringLiteral( "ymax" )].toDouble( &ymaxOk ) );
if ( !xminOk || !yminOk || !xmaxOk || !ymaxOk )
{
appendError( QgsErrorMessage( tr( "Could not retrieve layer extent" ), QStringLiteral( "AFSProvider" ) ) );
return;
}
QgsCoordinateReferenceSystem extentCrs = QgsArcGisRestUtils::parseSpatialReference( layerExtentMap[QStringLiteral( "spatialReference" )].toMap() );
if ( !extentCrs.isValid() )
{
appendError( QgsErrorMessage( tr( "Could not parse spatial reference" ), QStringLiteral( "AFSProvider" ) ) );
return;
}
mSharedData->mExtent = originalExtent;
Q_NOWARN_DEPRECATED_PUSH
mSharedData->mExtent = QgsCoordinateTransform( extentCrs, mSharedData->mSourceCRS ).transformBoundingBox( mSharedData->mExtent );
Q_NOWARN_DEPRECATED_POP
@ -172,6 +190,17 @@ QgsAfsProvider::QgsAfsProvider( const QString &uri )
mSharedData->mObjectIds.append( objectId.toInt() );
}
// layer metadata
mLayerMetadata.setIdentifier( mSharedData->mDataSource.param( QStringLiteral( "url" ) ) );
mLayerMetadata.setType( QStringLiteral( "dataset" ) );
mLayerMetadata.setAbstract( mLayerDescription );
mLayerMetadata.setTitle( mLayerName );
QString copyright = layerData[QStringLiteral( "copyrightText" )].toString();
if ( !copyright.isEmpty() )
mLayerMetadata.setRights( QStringList() << copyright );
mLayerMetadata.addLink( QgsLayerMetadata::Link( tr( "Source" ), QStringLiteral( "WWW:LINK" ), mSharedData->mDataSource.param( QStringLiteral( "url" ) ) ) );
mValid = true;
}
@ -200,9 +229,14 @@ QgsFields QgsAfsProvider::fields() const
return mSharedData->mFields;
}
QgsLayerMetadata QgsAfsProvider::layerMetadata() const
{
return mLayerMetadata;
}
QgsVectorDataProvider::Capabilities QgsAfsProvider::capabilities() const
{
return QgsVectorDataProvider::SelectAtId;
return QgsVectorDataProvider::SelectAtId | QgsVectorDataProvider::ReadLayerMetadata;
}
void QgsAfsProvider::setDataSourceUri( const QString &uri )

3
src/providers/arcgisrest/qgsafsprovider.h
View File

@ -25,6 +25,7 @@
#include "qgscoordinatereferencesystem.h"
#include "geometry/qgswkbtypes.h"
#include "qgsfields.h"
#include "qgslayermetadata.h"
/**
* \brief A provider reading features from a ArcGIS Feature Service
@ -44,6 +45,7 @@ class QgsAfsProvider : public QgsVectorDataProvider
QgsWkbTypes::Type wkbType() const override;
long featureCount() const override;
QgsFields fields() const override;
QgsLayerMetadata layerMetadata() const override;
/* Read only for the moment
bool addFeatures( QgsFeatureList &flist ) override{ return false; }
bool deleteFeatures( const QgsFeatureIds &id ) override{ return false; }
@ -75,6 +77,7 @@ class QgsAfsProvider : public QgsVectorDataProvider
int mObjectIdFieldIdx;
QString mLayerName;
QString mLayerDescription;
QgsLayerMetadata mLayerMetadata;
};
#endif // QGSAFSPROVIDER_H