Skip layers with 'rendering/noPreviewJobs' custom property set in pre…

…fetch preview jobs
qgis · Dec 20, 2022 · d30a7be · d30a7be
1 parent dfe38ed
commit d30a7be
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/gui/qgsmapcanvas.cpp b/src/gui/qgsmapcanvas.cpp
@@ -3147,6 +3147,11 @@ void QgsMapCanvas::startPreviewJob( int number )
   context.maxRenderingTimeMs = MAXIMUM_LAYER_PREVIEW_TIME_MS;
   for ( QgsMapLayer *layer : layers )
   {
+    if ( layer->customProperty( QStringLiteral( "rendering/noPreviewJobs" ), false ).toBool() )
+    {
+      QgsDebugMsgLevel( QStringLiteral( "Layer %1 not rendered because it is explicitly blocked from preview jobs" ).arg( layer->id() ), 3 );
+      continue;
+    }
     context.lastRenderingTimeMs = mLastLayerRenderTime.value( layer->id(), 0 );
     QgsDataProvider *provider = layer->dataProvider();
     if ( provider && !provider->renderInPreview( context ) )