Move vector tile style handling to data provider subclasses

src/core/vectortile/qgsarcgisvectortileservicedataprovider.cpp

@@ -105,9 +105,27 @@ QgsCoordinateReferenceSystem QgsArcGisVectorTileServiceDataProvider::crs() const
 
 QgsLayerMetadata QgsArcGisVectorTileServiceDataProvider::layerMetadata() const
 {
+  QGIS_PROTECT_QOBJECT_THREAD_ACCESS
+
   return mLayerMetadata;
 }
 
+QVariantMap QgsArcGisVectorTileServiceDataProvider::styleDefinition() const
+{
+  QGIS_PROTECT_QOBJECT_THREAD_ACCESS
+
+  return mArcgisStyleConfiguration;
+}
+
+QString QgsArcGisVectorTileServiceDataProvider::styleUrl() const
+{
+  QGIS_PROTECT_QOBJECT_THREAD_ACCESS
+
+  // for ArcMap VectorTileServices we default to the defaultStyles URL from the layer configuration
+  return mArcgisLayerConfiguration.value( QStringLiteral( "serviceUri" ) ).toString()
+         + '/' + mArcgisLayerConfiguration.value( QStringLiteral( "defaultStyles" ) ).toString();
+}
+
 bool QgsArcGisVectorTileServiceDataProvider::setupArcgisVectorTileServiceConnection()
 {
   QGIS_PROTECT_QOBJECT_THREAD_ACCESS

src/core/vectortile/qgsarcgisvectortileservicedataprovider.h

@@ -42,6 +42,8 @@ class CORE_EXPORT QgsArcGisVectorTileServiceDataProvider : public QgsXyzVectorTi
     QString sourcePath() const override;
     QgsCoordinateReferenceSystem crs() const override;
     QgsLayerMetadata layerMetadata() const override;
+    QVariantMap styleDefinition() const override;
+    QString styleUrl() const;
 
     static QString ARCGIS_VT_SERVICE_DATA_PROVIDER_KEY;
     static QString ARCGIS_VT_SERVICE_DATA_PROVIDER_DESCRIPTION;

src/core/vectortile/qgsvectortiledataprovider.cpp

@@ -17,6 +17,7 @@
 #include "qgsthreadingutils.h"
 
 #include <QNetworkRequest>
+#include <QImage>
 
 QgsVectorTileDataProvider::QgsVectorTileDataProvider(
   const QString &uri,
@@ -61,5 +62,33 @@ QNetworkRequest QgsVectorTileDataProvider::tileRequest( const QgsTileMatrix &, c
   return QNetworkRequest();
 }
 
+QVariantMap QgsVectorTileDataProvider::styleDefinition() const
+{
+  QGIS_PROTECT_QOBJECT_THREAD_ACCESS
+
+  return QVariantMap();
+}
+
+QString QgsVectorTileDataProvider::styleUrl() const
+{
+  QGIS_PROTECT_QOBJECT_THREAD_ACCESS
+
+  return QString();
+}
+
+QVariantMap QgsVectorTileDataProvider::spriteDefinition() const
+{
+  QGIS_PROTECT_QOBJECT_THREAD_ACCESS
+
+  return QVariantMap();
+}
+
+QImage QgsVectorTileDataProvider::spriteImage() const
+{
+  QGIS_PROTECT_QOBJECT_THREAD_ACCESS
+
+  return QImage();
+}
+
 
 

src/core/vectortile/qgsvectortiledataprovider.h

@@ -108,6 +108,37 @@ class CORE_EXPORT QgsVectorTileDataProvider : public QgsDataProvider
      * The default implementation returns an invalid request.
      */
     virtual QNetworkRequest tileRequest( const QgsTileMatrix &tileMatrix, const QgsTileXYZ &id, Qgis::RendererUsage usage ) const;
+
+    /**
+     * Returns the style definition for the provider, if available.
+     *
+     * \see styleUrl()
+     * \see spriteDefinition()
+     */
+    virtual QVariantMap styleDefinition() const;
+
+    /**
+     * Returns the URL for the provider style, if available.
+     *
+     * If styleDefinition() is empty, then the layer style may be available
+     * from this URL.
+     */
+    virtual QString styleUrl() const;
+
+    /**
+     * Returns the sprite definition for the provider, if available.
+     *
+     * \see spriteImage()
+     * \see styleDefinition()
+     */
+    virtual QVariantMap spriteDefinition() const;
+
+    /**
+     * Returns the sprite image for the provider, if available.
+     *
+     * \see spriteDefinition()
+     */
+    virtual QImage spriteImage() const;
 };
 
 

src/core/vectortile/qgsvectortilelayer.cpp

@@ -17,7 +17,6 @@
 
 #include "qgslogger.h"
 #include "qgsvectortilelayerrenderer.h"
-#include "qgsvtpktiles.h"
 #include "qgsvectortilebasiclabeling.h"
 #include "qgsvectortilebasicrenderer.h"
 #include "qgsvectortilelabeling.h"
@@ -36,7 +35,6 @@
 #include "qgsthreadingutils.h"
 #include "qgsproviderregistry.h"
 #include "qgsvectortiledataprovider.h"
-#include "qgsarcgisvectortileservicedataprovider.h"
 
 #include <QUrl>
 #include <QUrlQuery>
@@ -379,6 +377,9 @@ bool QgsVectorTileLayer::loadDefaultStyleAndSubLayers( QString &error, QStringLi
 bool QgsVectorTileLayer::loadDefaultStyleAndSubLayersPrivate( QString &error, QStringList &warnings, QList<QgsMapLayer *> *subLayers )
 {
   QGIS_PROTECT_QOBJECT_THREAD_ACCESS
+  QgsVectorTileDataProvider *vtProvider = qgis::down_cast< QgsVectorTileDataProvider *> ( mDataProvider.get() );
+  if ( !vtProvider )
+    return false;
 
   QgsDataSourceUri dsUri;
   dsUri.setEncodedUri( mDataSource );
@@ -390,38 +391,22 @@ bool QgsVectorTileLayer::loadDefaultStyleAndSubLayersPrivate( QString &error, QS
   {
     styleUrl = dsUri.param( QStringLiteral( "styleUrl" ) );
   }
-  else if ( mSourceType == QLatin1String( "xyz" ) && dsUri.param( QStringLiteral( "serviceType" ) ) == QLatin1String( "arcgis" ) )
+  else
   {
-    // for ArcMap VectorTileServices we default to the defaultStyles URL from the layer configuration
-    styleUrl = mArcgisLayerConfiguration.value( QStringLiteral( "serviceUri" ) ).toString()
-               + '/' + mArcgisLayerConfiguration.value( QStringLiteral( "defaultStyles" ) ).toString();
+    styleUrl = vtProvider->styleUrl();
   }
 
-  if ( mSourceType == QLatin1String( "vtpk" ) )
+  styleDefinition = vtProvider->styleDefinition();
+  const QVariantMap spriteDefinition = vtProvider->spriteDefinition();
+  if ( !spriteDefinition.isEmpty() )
   {
-    QgsVtpkTiles reader( sourcePath() );
-    if ( !reader.open() )
-    {
-      QgsDebugMsg( QStringLiteral( "failed to open VTPK file: " ) + sourcePath() );
-      return false;
-    }
-
-    styleDefinition = reader.styleDefinition();
-
-    const QVariantMap spriteDefinition = reader.spriteDefinition();
-    if ( !spriteDefinition.isEmpty() )
-    {
-      const QImage spriteImage = reader.spriteImage();
-      context.setSprites( spriteImage, spriteDefinition );
-    }
+    const QImage spriteImage = vtProvider->spriteImage();
+    context.setSprites( spriteImage, spriteDefinition );
   }
-  else if ( !mArcgisStyleConfiguration.isEmpty() || !styleUrl.isEmpty() )
+
+  if ( !styleDefinition.isEmpty() || !styleUrl.isEmpty() )
   {
-    if ( !mArcgisStyleConfiguration.isEmpty() )
-    {
-      styleDefinition = mArcgisStyleConfiguration;
-    }
-    else
+    if ( styleDefinition.isEmpty() )
     {
       QNetworkRequest request = QNetworkRequest( QUrl( styleUrl ) );
 

src/core/vectortile/qgsvectortilelayer.h

@@ -295,9 +295,6 @@ class CORE_EXPORT QgsVectorTileLayer : public QgsMapLayer
     //! Whether we draw borders of tiles
     bool mTileBorderRendering = false;
 
-    QVariantMap mArcgisLayerConfiguration;
-    QVariantMap mArcgisStyleConfiguration;
-
     QgsCoordinateTransformContext mTransformContext;
 
     std::unique_ptr< QgsDataProvider > mDataProvider;

src/core/vectortile/qgsvtpkvectortiledataprovider.cpp

@@ -57,6 +57,12 @@ QgsVtpkVectorTileDataProvider::QgsVtpkVectorTileDataProvider( const QString &uri
   mCrs = mMatrixSet.crs();
   mExtent = reader.extent( transformContext() );
   mLayerMetadata = reader.layerMetadata();
+  mStyleDefinition = reader.styleDefinition();
+  mSpriteDefinition = reader.spriteDefinition();
+  if ( !mSpriteDefinition.isEmpty() )
+  {
+    mSpriteImage = reader.spriteImage();
+  }
 
   mIsValid = true;
 }
@@ -131,6 +137,27 @@ const QgsVectorTileMatrixSet &QgsVtpkVectorTileDataProvider::tileMatrixSet() con
   return mMatrixSet;
 }
 
+QVariantMap QgsVtpkVectorTileDataProvider::styleDefinition() const
+{
+  QGIS_PROTECT_QOBJECT_THREAD_ACCESS
+
+  return mStyleDefinition;
+}
+
+QVariantMap QgsVtpkVectorTileDataProvider::spriteDefinition() const
+{
+  QGIS_PROTECT_QOBJECT_THREAD_ACCESS
+
+  return mSpriteDefinition;
+}
+
+QImage QgsVtpkVectorTileDataProvider::spriteImage() const
+{
+  QGIS_PROTECT_QOBJECT_THREAD_ACCESS
+
+  return mSpriteImage;
+}
+
 QByteArray QgsVtpkVectorTileDataProvider::readTile( const QgsTileMatrix &, const QgsTileXYZ &id, QgsFeedback *feedback ) const
 {
   QGIS_PROTECT_QOBJECT_THREAD_ACCESS

src/core/vectortile/qgsvtpkvectortiledataprovider.h

@@ -22,6 +22,8 @@
 #include "qgsprovidermetadata.h"
 #include "qgsvectortilematrixset.h"
 
+#include <QImage>
+
 #define SIP_NO_FILE
 
 ///@cond PRIVATE
@@ -47,6 +49,9 @@ class CORE_EXPORT QgsVtpkVectorTileDataProvider : public QgsVectorTileDataProvid
     QgsRectangle extent() const override;
     QgsLayerMetadata layerMetadata() const override;
     const QgsVectorTileMatrixSet &tileMatrixSet() const override;
+    QVariantMap styleDefinition() const override;
+    QVariantMap spriteDefinition() const override;
+    QImage spriteImage() const override;
     QByteArray readTile( const QgsTileMatrix &tileMatrix, const QgsTileXYZ &id, QgsFeedback *feedback = nullptr ) const override;
     QList<QgsVectorTileRawData> readTiles( const QgsTileMatrix &, const QVector<QgsTileXYZ> &tiles, QgsFeedback *feedback = nullptr ) const override;
 
@@ -62,6 +67,9 @@ class CORE_EXPORT QgsVtpkVectorTileDataProvider : public QgsVectorTileDataProvid
     QgsRectangle mExtent;
     QgsVectorTileMatrixSet mMatrixSet;
     QgsLayerMetadata mLayerMetadata;
+    QVariantMap mStyleDefinition;
+    QVariantMap mSpriteDefinition;
+    QImage mSpriteImage;
 
 };