trigger loading of sub indexes using queued connection

qgis · Oct 19, 2023 · 993c95d · 993c95d
1 parent ca5041b
commit 993c95d
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/src/3d/qgsvirtualpointcloudentity_p.cpp b/src/3d/qgsvirtualpointcloudentity_p.cpp
@@ -56,7 +56,9 @@ QgsVirtualPointCloudEntity::QgsVirtualPointCloudEntity( QgsPointCloudLayer *laye
   }
 
   updateBboxEntity();
+  connect( this, &QgsVirtualPointCloudEntity::subIndexNeedsLoading, provider(), &QgsVirtualPointCloudProvider::loadSubIndex, Qt::QueuedConnection );
   connect( provider(), &QgsVirtualPointCloudProvider::subIndexLoaded, this, &QgsVirtualPointCloudEntity::createChunkedEntityForSubIndex );
+
 }
 
 QList<QgsChunkedEntity *> QgsVirtualPointCloudEntity::chunkedEntities() const
@@ -120,7 +122,7 @@ void QgsVirtualPointCloudEntity::handleSceneUpdate( const SceneState &state )
     // then once the camera changes we display as bbox depending on screen space error
     const bool displayAsBbox = state.cameraPos.isNull() || sse < THRESHOLD;
     if ( !displayAsBbox && !subIndexes.at( i ).index() )
-      provider()->loadSubIndex( i );
+      emit subIndexNeedsLoading( i );
 
     setRenderSubIndexAsBbox( i, displayAsBbox );
     if ( !displayAsBbox && mChunkedEntitiesMap.contains( i ) )

diff --git a/src/3d/qgsvirtualpointcloudentity_p.h b/src/3d/qgsvirtualpointcloudentity_p.h
@@ -75,6 +75,9 @@ class QgsVirtualPointCloudEntity : public Qgs3DMapSceneEntity
     //! If \a asBbox is TRUE only the bounding box will be rendered for the sub index \a i. If it is FALSE, the sub index will be rendered as a chunked entity.
     void setRenderSubIndexAsBbox( int i, bool asBbox );
 
+  signals:
+    void subIndexNeedsLoading( int i );
+
   private:
     //! Updates the Bbox child entity to display the sub indexes set with setRenderSubIndexAsBbox()
     void updateBboxEntity();