Built-in ZOOM function

Question

Does anybody know where i can find implementation of feature called "Zoom to Feature".

To use this function from GUI you have to right click on layer then choose "Open Attribute Table" then right click on feature and there should be option called "Zoom to Feature" in context menu.

It looks like this:

[IMPORTANT]

Feature in Qgis is a set of attributes from table.

Answer 1

It is what i was looking 4.

    void QgsIdentifyResultsDialog::zoomToFeature()
{
  QTreeWidgetItem *item = lstResults->currentItem();

  QgsVectorLayer *vlayer = vectorLayer( item );
  QgsRasterLayer *rlayer = rasterLayer( item );
  if ( !vlayer && !rlayer )
    return;

  QgsMapLayer *layer = nullptr;
  if ( vlayer )
    layer = vlayer;
  else
    layer = rlayer;

  QgsIdentifyResultsFeatureItem *featItem = dynamic_cast<QgsIdentifyResultsFeatureItem *>( featureItem( item ) );
  if ( !featItem )
    return;

  QgsFeature feat = featItem->feature();
  if ( !feat.hasGeometry() )
    return;

  // TODO: verify CRS for raster WMS features
  QgsRectangle rect = mCanvas->mapSettings().layerExtentToOutputExtent( layer, feat.geometry().boundingBox() );

  if ( rect.isEmpty() )
  {
    QgsPointXY c = rect.center();
    rect = mCanvas->extent();
    rect.scale( 0.5, &c );
  }

  mCanvas->setExtent( rect );
  mCanvas->refresh();
}