[FEATURE]: Zoom to feature with right-click in attribute table

Author: mhugent

python/gui/attributetable/qgsdualview.sip

@@ -98,6 +98,16 @@ class QgsDualView : QStackedWidget
      * @return The master model
      */
     QgsAttributeTableModel* masterModel() const;
+    /**
+      Returns the filter model
+      @return the filter model
+      */
+    QgsAttributeTableFilterModel* filterModel() const;
+    /**
+      Returns the table view
+      @return the table view
+      */
+    const QgsAttributeTableView* tableView() const;
 
     void setRequest( const QgsFeatureRequest& request );
 

python/gui/qgsmapcanvas.sip

@@ -168,6 +168,11 @@ class QgsMapCanvas : QGraphicsView
       @param layer optionally specify different than current layer */
     void zoomToSelected( QgsVectorLayer* layer = NULL );
 
+    /** Set canvas extent to the bounding box of a feature
+        @param layer the vector layer
+        @param id the feature id*/
+    void zoomToFeatureId( QgsVectorLayer* layer, QgsFeatureId id );
+
     /** Pan to the selected features of current (vector) layer keeping same extent. */
     void panToSelected( QgsVectorLayer* layer = NULL );
 

src/app/qgsattributetabledialog.cpp

@@ -240,6 +240,8 @@ QgsAttributeTableDialog::QgsAttributeTableDialog( QgsVectorLayer *theLayer, QWid
   mMainView->setView( QgsDualView::AttributeTable );
 
   editingToggled();
+
+  QObject::connect( mMainView->tableView(), SIGNAL( willShowContextMenu( QMenu*, QModelIndex ) ), this, SLOT( viewWillShowContextMenu( QMenu*, QModelIndex ) ) );
 }
 
 QgsAttributeTableDialog::~QgsAttributeTableDialog()
@@ -351,6 +353,26 @@ void QgsAttributeTableDialog::updateFieldFromExpressionSelected()
   runFieldCalculation( mLayer, mFieldCombo->currentText(), mUpdateExpressionText->currentField(), filteredIds );
 }
 
+void QgsAttributeTableDialog::viewWillShowContextMenu( QMenu* menu, QModelIndex atIndex )
+{
+  if ( menu )
+  {
+    menu->addAction( tr( "Zoom to feature" ), this, SLOT( zoomToFeature() ) );
+  }
+}
+
+void QgsAttributeTableDialog::zoomToFeature()
+{
+  QModelIndex currentIndex = mMainView->tableView()->currentIndex();
+  if ( !currentIndex.isValid() )
+  {
+    return;
+  }
+
+  QgsFeatureId id = mMainView->filterModel()->rowToId( currentIndex );
+  QgisApp::instance()->mapCanvas()->zoomToFeatureId( mLayer, id );
+}
+
 void QgsAttributeTableDialog::runFieldCalculation( QgsVectorLayer* layer, const QString& fieldName, const QString& expression, const QgsFeatureIds& filteredIds )
 {
   QApplication::setOverrideCursor( Qt::WaitCursor );

src/app/qgsattributetabledialog.h

@@ -203,6 +203,13 @@ class APP_EXPORT QgsAttributeTableDialog : public QDialog, private Ui::QgsAttrib
     void updateFieldFromExpression();
     void updateFieldFromExpressionSelected();
 
+    /** Add items to the rightclick menu
+        @menu the context menu
+        @atIndex the current model index*/
+    void viewWillShowContextMenu( QMenu* menu, QModelIndex atIndex );
+    /** Zooms to the active feature*/
+    void zoomToFeature();
+
   private:
     QMenu* mMenuActions;
     QAction* mActionToggleEditing;

src/gui/attributetable/qgsdualview.h

@@ -136,6 +136,16 @@ class GUI_EXPORT QgsDualView : public QStackedWidget, private Ui::QgsDualViewBas
      * @return The master model
      */
     QgsAttributeTableModel* masterModel() const { return mMasterModel; }
+    /**
+      Returns the filter model
+      @return the filter model
+      */
+    QgsAttributeTableFilterModel* filterModel() const { return mFilterModel; }
+    /**
+      Returns the table view
+      @return the table view
+      */
+    const QgsAttributeTableView* tableView() const { return mTableView; }
 
     void setRequest( const QgsFeatureRequest& request );
 

src/gui/qgsmapcanvas.cpp

@@ -1042,7 +1042,11 @@ void QgsMapCanvas::zoomToSelected( QgsVectorLayer* layer )
     return;
 
   QgsRectangle rect = mapSettings().layerExtentToOutputExtent( layer, layer->boundingBoxOfSelected() );
+  zoomToFeatureExtent( rect );
+} // zoomToSelected
 
+void QgsMapCanvas::zoomToFeatureExtent( QgsRectangle& rect )
+{
   // no selected features, only one selected point feature
   //or two point features with the same x- or y-coordinates
   if ( rect.isEmpty() )
@@ -1063,7 +1067,31 @@ void QgsMapCanvas::zoomToSelected( QgsVectorLayer* layer )
 
   setExtent( rect );
   refresh();
-} // zoomToSelected
+}
+
+void QgsMapCanvas::zoomToFeatureId( QgsVectorLayer* layer, QgsFeatureId id )
+{
+  if ( !layer )
+  {
+    return;
+  }
+
+  QgsFeatureIterator it = layer->getFeatures( QgsFeatureRequest().setFilterFid( id ).setSubsetOfAttributes( QgsAttributeList() ) );
+  QgsFeature fet;
+  if ( !it.nextFeature( fet ) )
+  {
+    return;
+  }
+
+  QgsGeometry* geom = fet.geometry();
+  if ( !geom )
+  {
+    return;
+  }
+
+  QgsRectangle rect = mapSettings().layerExtentToOutputExtent( layer, geom->boundingBox() );
+  zoomToFeatureExtent( rect );
+}
 
 void QgsMapCanvas::panToSelected( QgsVectorLayer* layer )
 {

src/gui/qgsmapcanvas.h

@@ -21,6 +21,7 @@
 #include "qgsconfig.h"
 
 #include "qgsexpressioncontext.h"
+#include "qgsfeature.h"
 #include "qgsrectangle.h"
 #include "qgspoint.h"
 #include "qgis.h"
@@ -236,6 +237,11 @@ class GUI_EXPORT QgsMapCanvas : public QGraphicsView
       @param layer optionally specify different than current layer */
     void zoomToSelected( QgsVectorLayer* layer = nullptr );
 
+    /** Set canvas extent to the bounding box of a feature
+        @param layer the vector layer
+        @param id the feature id*/
+    void zoomToFeatureId( QgsVectorLayer* layer, QgsFeatureId id );
+
     /** Pan to the selected features of current (vector) layer keeping same extent. */
     void panToSelected( QgsVectorLayer* layer = nullptr );
 
@@ -619,6 +625,10 @@ class GUI_EXPORT QgsMapCanvas : public QGraphicsView
     //! called when panning is in action, reset indicates end of panning
     void moveCanvasContents( bool reset = false );
 
+    //! Zooms to feature extent. Adds a small margin around the extent
+    //! and does a pan if rect is empty (point extent)
+    void zoomToFeatureExtent( QgsRectangle& rect );
+
     //! called on resize or changed extent to notify canvas items to change their rectangle
     void updateCanvasItemPositions();