Merge pull request #45262 from nyalldawson/provider

Always pass on transform context to providers, even minimal ones

python/core/auto_generated/vectortile/qgsvectortilelayer.sip.in

@@ -71,7 +71,20 @@ Currently supported decoders:
 #include "qgsvectortilelayer.h"
 %End
   public:
-    explicit QgsVectorTileLayer( const QString &path = QString(), const QString &baseName = QString() );
+
+
+    struct LayerOptions
+    {
+
+      explicit LayerOptions( const QgsCoordinateTransformContext &transformContext = QgsCoordinateTransformContext( ) );
+%Docstring
+Constructor for LayerOptions with optional ``transformContext``.
+%End
+
+      QgsCoordinateTransformContext transformContext;
+    };
+
+    explicit QgsVectorTileLayer( const QString &path = QString(), const QString &baseName = QString(), const QgsVectorTileLayer::LayerOptions &options = QgsVectorTileLayer::LayerOptions() );
 %Docstring
 Constructs a new vector tile layer
 %End

src/app/qgisapp.cpp

@@ -2159,7 +2159,8 @@ void QgisApp::handleDropUriList( const QgsMimeDataUtils::UriList &lst )
     {
       QgsTemporaryCursorOverride busyCursor( Qt::WaitCursor );
 
-      QgsVectorTileLayer *layer = new QgsVectorTileLayer( uri, u.name );
+      const QgsVectorTileLayer::LayerOptions options( QgsProject::instance()->transformContext() );
+      QgsVectorTileLayer *layer = new QgsVectorTileLayer( uri, u.name, options );
       bool ok = false;
       layer->loadDefaultMetadata( ok );
 
@@ -6004,7 +6005,8 @@ QgsVectorTileLayer *QgisApp::addVectorTileLayerPrivate( const QString &url, cons
   QgsDebugMsgLevel( "completeBaseName: " + base, 2 );
 
   // create the layer
-  std::unique_ptr<QgsVectorTileLayer> layer( new QgsVectorTileLayer( url, base ) );
+  const QgsVectorTileLayer::LayerOptions options( QgsProject::instance()->transformContext() );
+  std::unique_ptr<QgsVectorTileLayer> layer( new QgsVectorTileLayer( url, base, options ) );
 
   if ( !layer || !layer->isValid() )
   {
@@ -7609,7 +7611,8 @@ bool QgisApp::openLayer( const QString &fileName, bool allowInteractive )
         QUrlQuery uq;
         uq.addQueryItem( QStringLiteral( "type" ), QStringLiteral( "mbtiles" ) );
         uq.addQueryItem( QStringLiteral( "url" ), fileName );
-        std::unique_ptr<QgsVectorTileLayer> vtLayer( new QgsVectorTileLayer( uq.toString(), fileInfo.completeBaseName() ) );
+        const QgsVectorTileLayer::LayerOptions options( QgsProject::instance()->transformContext() );
+        std::unique_ptr<QgsVectorTileLayer> vtLayer( new QgsVectorTileLayer( uq.toString(), fileInfo.completeBaseName(), options ) );
         if ( vtLayer->isValid() )
         {
           QgsProject::instance()->addMapLayer( vtLayer.release() );

src/core/annotations/qgsannotationlayer.cpp

@@ -107,7 +107,10 @@ QgsAnnotationLayer::QgsAnnotationLayer( const QString &name, const LayerOptions
 {
   mShouldValidateCrs = false;
   mValid = true;
-  mDataProvider = new QgsAnnotationLayerDataProvider( QgsDataProvider::ProviderOptions(), QgsDataProvider::ReadFlags() );
+
+  QgsDataProvider::ProviderOptions providerOptions;
+  providerOptions.transformContext = options.transformContext;
+  mDataProvider = new QgsAnnotationLayerDataProvider( providerOptions, QgsDataProvider::ReadFlags() );
 
   mPaintEffect.reset( QgsPaintEffectRegistry::defaultStack() );
   mPaintEffect->setEnabled( false );
@@ -325,6 +328,9 @@ QgsRectangle QgsAnnotationLayer::extent() const
 
 void QgsAnnotationLayer::setTransformContext( const QgsCoordinateTransformContext &context )
 {
+  if ( mDataProvider )
+    mDataProvider->setTransformContext( context );
+
   mTransformContext = context;
   invalidateWgs84Extent();
 }

src/core/qgsmaplayerfactory.cpp

@@ -95,7 +95,10 @@ QgsMapLayer *QgsMapLayerFactory::createLayer( const QString &uri, const QString
     }
 
     case QgsMapLayerType::VectorTileLayer:
-      return new QgsVectorTileLayer( uri, name );
+    {
+      const QgsVectorTileLayer::LayerOptions vectorTileOptions( options.transformContext );
+      return new QgsVectorTileLayer( uri, name, vectorTileOptions );
+    }
 
     case QgsMapLayerType::AnnotationLayer:
     {

src/core/vectortile/qgsvectortilelayer.cpp

@@ -36,8 +36,9 @@
 #include <QUrl>
 #include <QUrlQuery>
 
-QgsVectorTileLayer::QgsVectorTileLayer( const QString &uri, const QString &baseName )
+QgsVectorTileLayer::QgsVectorTileLayer( const QString &uri, const QString &baseName, const LayerOptions &options )
   : QgsMapLayer( QgsMapLayerType::VectorTileLayer, baseName )
+  , mTransformContext( options.transformContext )
 {
   mDataSource = uri;
 
@@ -129,7 +130,7 @@ bool QgsVectorTileLayer::loadDataSource()
 
   setCrs( QgsCoordinateReferenceSystem( QStringLiteral( "EPSG:3857" ) ) );
 
-  const QgsDataProvider::ProviderOptions providerOptions { transformContext() };
+  const QgsDataProvider::ProviderOptions providerOptions { mTransformContext };
   const QgsDataProvider::ReadFlags flags;
   mDataProvider.reset( new QgsVectorTileDataProvider( providerOptions, flags ) );
   mProviderKey = mDataProvider->name();
@@ -207,7 +208,8 @@ QgsVectorTileLayer::~QgsVectorTileLayer() = default;
 
 QgsVectorTileLayer *QgsVectorTileLayer::clone() const
 {
-  QgsVectorTileLayer *layer = new QgsVectorTileLayer( source(), name() );
+  const QgsVectorTileLayer::LayerOptions options( mTransformContext );
+  QgsVectorTileLayer *layer = new QgsVectorTileLayer( source(), name(), options );
   layer->setRenderer( renderer() ? renderer()->clone() : nullptr );
   return layer;
 }
@@ -385,7 +387,10 @@ bool QgsVectorTileLayer::writeSymbology( QDomNode &node, QDomDocument &doc, QStr
 
 void QgsVectorTileLayer::setTransformContext( const QgsCoordinateTransformContext &transformContext )
 {
-  Q_UNUSED( transformContext )
+  if ( mDataProvider )
+    mDataProvider->setTransformContext( transformContext );
+
+  mTransformContext = transformContext;
   invalidateWgs84Extent();
 }
 

src/core/vectortile/qgsvectortilelayer.h

@@ -85,8 +85,29 @@ class CORE_EXPORT QgsVectorTileLayer : public QgsMapLayer
     Q_OBJECT
 
   public:
+
+
+    /**
+     * Setting options for loading vector tile layers.
+     *
+     * \since QGIS 3.22
+     */
+    struct LayerOptions
+    {
+
+      /**
+       * Constructor for LayerOptions with optional \a transformContext.
+       */
+      explicit LayerOptions( const QgsCoordinateTransformContext &transformContext = QgsCoordinateTransformContext( ) )
+        : transformContext( transformContext )
+      {}
+
+      //! Coordinate transform context
+      QgsCoordinateTransformContext transformContext;
+    };
+
     //! Constructs a new vector tile layer
-    explicit QgsVectorTileLayer( const QString &path = QString(), const QString &baseName = QString() );
+    explicit QgsVectorTileLayer( const QString &path = QString(), const QString &baseName = QString(), const QgsVectorTileLayer::LayerOptions &options = QgsVectorTileLayer::LayerOptions() );
     ~QgsVectorTileLayer() override;
 
 #ifdef SIP_RUN
@@ -195,6 +216,8 @@ class CORE_EXPORT QgsVectorTileLayer : public QgsMapLayer
 
     QVariantMap mArcgisLayerConfiguration;
 
+    QgsCoordinateTransformContext mTransformContext;
+
     std::unique_ptr< QgsDataProvider > mDataProvider;
 
     bool setupArcgisVectorTileServiceConnection( const QString &uri, const QgsDataSourceUri &dataSourceUri );