Merge pull request #9504 from m-kuhn/geometry_validator_zoom_to_improvements

Disable automatic zoom to problem when fixing errors on geometries

Author: m-kuhn

src/app/qgsgeometryvalidationdock.cpp

@@ -87,6 +87,11 @@ void QgsGeometryValidationDock::setGeometryValidationModel( QgsGeometryValidatio
   connect( mGeometryValidationModel, &QgsGeometryValidationModel::dataChanged, this, &QgsGeometryValidationDock::onDataChanged );
   connect( mGeometryValidationModel, &QgsGeometryValidationModel::rowsRemoved, this, &QgsGeometryValidationDock::updateCurrentError );
   connect( mGeometryValidationModel, &QgsGeometryValidationModel::rowsInserted, this, &QgsGeometryValidationDock::onRowsInserted );
+
+  // We cannot connect to the regular aboutToRemoveRows signal, because we need this to happen
+  // before the currentIndex is changed.
+  connect( mGeometryValidationModel, &QgsGeometryValidationModel::aboutToRemoveSingleGeometryCheck, this, [this]() { mPreventZoomToError = true; } );
+  connect( mGeometryValidationModel, &QgsGeometryValidationModel::rowsRemoved, this, [this]() { mPreventZoomToError = false; } );
 }
 
 void QgsGeometryValidationDock::gotoNextError()
@@ -244,6 +249,20 @@ void QgsGeometryValidationDock::onCurrentErrorChanged( const QModelIndex &curren
 
   bool hasFeature = !FID_IS_NULL( current.data( QgsGeometryValidationModel::ErrorFeatureIdRole ) );
   mZoomToFeatureButton->setEnabled( hasFeature );
+
+  if ( !mPreventZoomToError )
+  {
+    switch ( mLastZoomToAction )
+    {
+      case  ZoomToProblem:
+        zoomToProblem();
+        break;
+
+      case ZoomToFeature:
+        zoomToFeature();
+        break;
+    }
+  }
 }
 
 void QgsGeometryValidationDock::onCurrentLayerChanged( QgsMapLayer *layer )

src/app/qgsgeometryvalidationdock.h

@@ -80,6 +80,7 @@ class QgsGeometryValidationDock : public QgsDockWidget, public Ui_QgsGeometryVal
     QgsRubberBand *mErrorRubberband = nullptr;
     QgsRubberBand *mErrorLocationRubberband = nullptr;
     QgsVectorLayer *mCurrentLayer = nullptr;
+    bool mPreventZoomToError = false;
 };
 
 #endif // QGSGEOMETRYVALIDATIONPANEL_H

src/app/qgsgeometryvalidationmodel.cpp

@@ -257,6 +257,7 @@ void QgsGeometryValidationModel::onSingleGeometryCheckCleared( QgsVectorLayer *l
 
   if ( mCurrentLayer == layer && !layerErrors.empty() )
   {
+    emit aboutToRemoveSingleGeometryCheck();
     beginRemoveRows( QModelIndex(), 0, layerErrors.size() - 1 );
   }
 
@@ -279,7 +280,10 @@ void QgsGeometryValidationModel::onGeometryCheckCompleted( QgsVectorLayer *layer
   if ( featureIdx > -1 && errors.empty() ) // && !mGeometryValidationService->validationActive( layer, fid ) )
   {
     if ( mCurrentLayer == layer )
+    {
+      emit aboutToRemoveSingleGeometryCheck();
       beginRemoveRows( QModelIndex(), featureIdx, featureIdx );
+    }
 
     layerErrors.removeAt( featureIdx );
 

src/app/qgsgeometryvalidationmodel.h

@@ -49,6 +49,15 @@ class QgsGeometryValidationModel : public QAbstractItemModel
 
     QgsVectorLayer *currentLayer() const;
 
+  signals:
+
+    /**
+     * Emitted before single geometry check results are removed.
+     * This is guaranteed to be emitted before the models regular
+     * aboutToRemoveRows() signal.
+     */
+    void aboutToRemoveSingleGeometryCheck();
+
   public slots:
     void setCurrentLayer( QgsVectorLayer *currentLayer );