src/app/nodetool/qgsmaptoolnodetool.cpp

@@ -717,7 +717,31 @@ void QgsMapToolNodeTool::keyPressEvent( QKeyEvent* e )
   if ( e->key() == Qt::Key_Control )
   {
     mCtrl = true;
+    return;
+  }
+
+  if ( mSelectedFeature && ( e->key() == Qt::Key_Backspace || e->key() == Qt::Key_Delete ) )
+  {
+    int firstSelectedIndex = firstSelectedVertex();
+    if ( firstSelectedIndex == -1 ) return;
+
+    mSelectedFeature->deleteSelectedVertexes();
+    safeSelectVertex( firstSelectedIndex );
+    mCanvas->refresh();
+
+    // Override default shortcut management in MapCanvas
+    e->ignore();
   }
+  else
+    if ( mSelectedFeature && ( e->key() == Qt::Key_Less || e->key() == Qt::Key_Greater ) )
+    {
+      int firstSelectedIndex = firstSelectedVertex();
+      if ( firstSelectedIndex == -1 ) return;
+
+      mSelectedFeature->deselectAllVertexes();
+      safeSelectVertex( firstSelectedIndex + (( e->key() == Qt::Key_Less ) ? -1 : + 1 ) );
+      mCanvas->refresh();
+    }
 }
 
 void QgsMapToolNodeTool::keyReleaseEvent( QKeyEvent* e )
@@ -727,12 +751,6 @@ void QgsMapToolNodeTool::keyReleaseEvent( QKeyEvent* e )
     mCtrl = false;
     return;
   }
-
-  if ( mSelectedFeature && e->key() == Qt::Key_Delete )
-  {
-    mSelectedFeature->deleteSelectedVertexes();
-    mCanvas->refresh();
-  }
 }
 
 QgsRubberBand* QgsMapToolNodeTool::createRubberBandMarker( QgsPoint center, QgsVectorLayer* vlayer )
@@ -748,3 +766,37 @@ QgsRubberBand* QgsMapToolNodeTool::createRubberBandMarker( QgsPoint center, QgsV
   marker->addPoint( pom );
   return marker;
 }
+
+int QgsMapToolNodeTool::firstSelectedVertex( )
+{
+  if ( mSelectedFeature )
+  {
+    QList<QgsVertexEntry*> &vertexMap = mSelectedFeature->vertexMap();
+    int vertexNr = 0;
+
+    foreach ( QgsVertexEntry *entry, vertexMap )
+    {
+      if ( entry->isSelected() )
+      {
+        return vertexNr;
+      }
+      vertexNr++;
+    }
+  }
+  return -1;
+}
+
+int QgsMapToolNodeTool::safeSelectVertex( int vertexNr )
+{
+  if ( mSelectedFeature )
+  {
+    QList<QgsVertexEntry*> &vertexMap = mSelectedFeature->vertexMap();
+
+    if ( vertexNr >= vertexMap.size() ) vertexNr -= vertexMap.size();
+    if ( vertexNr < 0 ) vertexNr = vertexMap.size() - 1 + vertexNr;
+
+    mSelectedFeature->selectVertex( vertexNr );
+    return vertexNr;
+  }
+  return -1;
+}

src/app/nodetool/qgsmaptoolnodetool.h

@@ -105,6 +105,16 @@ class QgsMapToolNodeTool: public QgsMapToolVertexEdit
      */
     void createTopologyRubberBands( QgsVectorLayer* vlayer, const QList<QgsVertexEntry*> &vertexMap, int vertex );
 
+    /**
+     * Returns the index of first selected vertex, -1 when all unselected
+     */
+    int firstSelectedVertex();
+
+    /**
+     * Select the specified vertex bounded to current index range, returns the valid selected index
+     */
+    int safeSelectVertex( int vertexNr );
+
     /** The position of the vertex to move (in map coordinates) to exclude later from snapping*/
     QList<QgsPoint> mExcludePoint;
 

src/app/qgisapp.cpp

@@ -1903,6 +1903,10 @@ void QgisApp::setupConnections()
   connect( mRenderSuppressionCBox, SIGNAL( toggled( bool ) ),
            mMapCanvas, SLOT( setRenderFlag( bool ) ) );
 
+  // connect MapCanvas keyPress event so we can check if selected feature collection must be deleted
+  connect( mMapCanvas, SIGNAL( keyPressed( QKeyEvent * ) ),
+           this, SLOT( mapCanvas_keyPressed( QKeyEvent * ) ) );
+
   // connect renderer
   connect( mMapCanvas->mapRenderer(), SIGNAL( drawingProgress( int, int ) ),
            this, SLOT( showProgress( int, int ) ) );
@@ -4800,7 +4804,7 @@ void QgisApp::layerProperties()
   showLayerProperties( activeLayer() );
 }
 
-void QgisApp::deleteSelected( QgsMapLayer *layer, QWidget* parent )
+void QgisApp::deleteSelected( QgsMapLayer *layer, QWidget* parent, bool promptConfirmation )
 {
   if ( !layer )
   {
@@ -4845,9 +4849,17 @@ void QgisApp::deleteSelected( QgsMapLayer *layer, QWidget* parent )
     return;
   }
 
-  //display a warning
+  //validate selection
   int numberOfDeletedFeatures = vlayer->selectedFeaturesIds().size();
-  if ( QMessageBox::warning( parent, tr( "Delete features" ), tr( "Delete %n feature(s)?", "number of features to delete", numberOfDeletedFeatures ), QMessageBox::Ok, QMessageBox::Cancel ) == QMessageBox::Cancel )
+  if ( numberOfDeletedFeatures == 0 )
+  {
+    messageBar()->pushMessage( tr( "No Features Selected" ),
+                               tr( "The current layer has not selected features" ),
+                               QgsMessageBar::INFO, messageTimeout() );
+    return;
+  }
+  //display a warning
+  if ( promptConfirmation && QMessageBox::warning( parent, tr( "Delete features" ), tr( "Delete %n feature(s)?", "number of features to delete", numberOfDeletedFeatures ), QMessageBox::Ok | QMessageBox::Cancel ) == QMessageBox::Cancel )
   {
     return;
   }
@@ -4859,6 +4871,10 @@ void QgisApp::deleteSelected( QgsMapLayer *layer, QWidget* parent )
                                tr( "A problem occured during deletion of features" ),
                                QgsMessageBar::WARNING );
   }
+  else
+  {
+    showStatusMessage( tr( "%n feature(s) deleted.", "number of features deleted", numberOfDeletedFeatures ) );
+  }
 
   vlayer->endEditCommand();
 }
@@ -6477,7 +6493,7 @@ void QgisApp::removeAllLayers()
   QgsMapLayerRegistry::instance()->removeAllMapLayers();
 }
 
-void QgisApp::removeLayer()
+void QgisApp::removeLayer( bool promptConfirmation )
 {
   if ( mMapCanvas && mMapCanvas->isDrawing() )
   {
@@ -6496,8 +6512,25 @@ void QgisApp::removeLayer()
       return;
   }
 
+  //validate selection
+  int numberOfRemovedLayers = mMapLegend->selectedLayers().size();
+  if ( numberOfRemovedLayers == 0 )
+  {
+    messageBar()->pushMessage( tr( "No Layer Selected" ),
+                               tr( "To remove layers, you must select they in the legend" ),
+                               QgsMessageBar::INFO, messageTimeout() );
+    return;
+  }
+  //display a warning
+  if ( promptConfirmation && QMessageBox::warning( this, tr( "Remove layers" ), tr( "Remove %n layer(s)?", "number of layers to remove", numberOfRemovedLayers ), QMessageBox::Ok | QMessageBox::Cancel ) == QMessageBox::Cancel )
+  {
+    return;
+  }
+
   mMapLegend->removeSelectedLayers();
 
+  showStatusMessage( tr( "%n layer(s) removed.", "number of layers removed", numberOfRemovedLayers ) );
+
   mMapCanvas->refresh();
 }
 
@@ -9061,6 +9094,15 @@ void QgisApp::keyPressEvent( QKeyEvent * e )
   }
 }
 
+void QgisApp::mapCanvas_keyPressed( QKeyEvent *e )
+{
+  // Delete selected features when it is possible and KeyEvent was not managed by current MapTool
+  if (( e->key() == Qt::Key_Backspace || e->key() == Qt::Key_Delete ) && e->isAccepted() )
+  {
+    deleteSelected();
+  }
+}
+
 #ifdef Q_OS_WIN
 // hope your wearing your peril sensitive sunglasses.
 void QgisApp::contextMenuEvent( QContextMenuEvent *e )

src/app/qgisapp.h

@@ -577,7 +577,7 @@ class APP_EXPORT QgisApp : public QMainWindow, private Ui::MainWindow
     void loadGDALSublayers( QString uri, QStringList list );
 
     /**Deletes the selected attributes for the currently selected vector layer*/
-    void deleteSelected( QgsMapLayer *layer = 0, QWidget* parent = 0 );
+    void deleteSelected( QgsMapLayer *layer = 0, QWidget* parent = 0, bool promptConfirmation = false );
 
     //! project was written
     void writeProject( QDomDocument & );
@@ -686,7 +686,7 @@ class APP_EXPORT QgisApp : public QMainWindow, private Ui::MainWindow
     //! Slot to handle user center input;
     void userCenter();
     //! Remove a layer from the map and legend
-    void removeLayer();
+    void removeLayer( bool promptConfirmation = true );
     /** Duplicate map layer(s) in legend
      * @note added in 1.9 */
     void duplicateLayers( const QList<QgsMapLayer *> lyrList = QList<QgsMapLayer *>() );
@@ -1161,6 +1161,9 @@ class APP_EXPORT QgisApp : public QMainWindow, private Ui::MainWindow
 
     void clipboardChanged();
 
+    //! catch MapCanvas keyPress event so we can check if selected feature collection must be deleted
+    void mapCanvas_keyPressed( QKeyEvent *e );
+
   signals:
     /** emitted when a key is pressed and we want non widget sublasses to be able
       to pick up on this (e.g. maplayer) */

src/app/qgsattributetabledialog.cpp

@@ -222,6 +222,16 @@ void QgsAttributeTableDialog::closeEvent( QCloseEvent* event )
   }
 }
 
+void QgsAttributeTableDialog::keyPressEvent( QKeyEvent* event )
+{
+  QDialog::keyPressEvent( event );
+
+  if (( event->key() == Qt::Key_Backspace || event->key() == Qt::Key_Delete ) && mDeleteSelectedButton->isEnabled() )
+  {
+    QgisApp::instance()->deleteSelected( mLayer, this );
+  }
+}
+
 void QgsAttributeTableDialog::columnBoxInit()
 {
   foreach ( QAction* a, mFilterColumnsMenu->actions() )

src/app/qgsattributetabledialog.h

@@ -172,6 +172,12 @@ class APP_EXPORT QgsAttributeTableDialog : public QDialog, private Ui::QgsAttrib
      */
     void closeEvent( QCloseEvent* event );
 
+    /*
+     * Handle KeyPress event of the window
+     * @param event
+     */
+    void keyPressEvent( QKeyEvent* event );
+
   private slots:
     /**
      * Initialize column box

src/app/qgsmaptoolannotation.cpp

@@ -133,14 +133,17 @@ void QgsMapToolAnnotation::keyPressEvent( QKeyEvent* e )
   QgsAnnotationItem* sItem = selectedItem();
   if ( sItem )
   {
-    if ( e->key() == Qt::Key_Delete )
+    if ( e->key() == Qt::Key_Backspace || e->key() == Qt::Key_Delete )
     {
       if ( mCanvas && mCanvas->scene() )
       {
         QCursor neutralCursor( sItem->cursorShapeForAction( QgsAnnotationItem::NoAction ) );
         mCanvas->scene()->removeItem( sItem );
         delete sItem;
         mCanvas->setCursor( neutralCursor );
+
+        // Override default shortcut management in MapCanvas
+        e->ignore();
       }
     }
   }

src/app/qgsmaptoolcapture.cpp

@@ -269,6 +269,9 @@ void QgsMapToolCapture::keyPressEvent( QKeyEvent* e )
   if ( e->key() == Qt::Key_Backspace || e->key() == Qt::Key_Delete )
   {
     undo();
+
+    // Override default shortcut management in MapCanvas
+    e->ignore();
   }
 }
 

src/core/composer/qgscomposermousehandles.h

@@ -97,7 +97,7 @@ class CORE_EXPORT QgsComposerMouseHandles: public QObject, public QGraphicsRectI
 
     /**Redraws handles when selected item rotation changes*/
     void selectedItemRotationChanged();
-    
+
   private:
 
     QgsComposition* mComposition; //reference to composition
@@ -131,8 +131,8 @@ class CORE_EXPORT QgsComposerMouseHandles: public QObject, public QGraphicsRectI
 
     /**Returns the mouse handle bounds of current selection*/
     QRectF selectionBounds() const;
-    
-    /**Returns true if all selected items have same rotation, and if so, updates passed rotation variable*/    
+
+    /**Returns true if all selected items have same rotation, and if so, updates passed rotation variable*/
     bool selectionRotation( double & rotation ) const;
 
     /**Redraws or hides the handles based on the current selection*/

src/core/composer/qgscomposition.h

@@ -413,11 +413,11 @@ class CORE_EXPORT QgsComposition : public QGraphicsScene
     void computeWorldFileParameters( double& a, double& b, double& c, double& d, double& e, double& f ) const;
 
     QgsAtlasComposition& atlasComposition() { return mAtlasComposition; };
-    
+
     /**Resizes a QRectF relative to the change from boundsBefore to boundsAfter*/
     static void relativeResizeRect( QRectF& rectToResize, const QRectF& boundsBefore, const QRectF& boundsAfter );
     /**Returns a scaled position given a before and after range*/
-    static double relativePosition( double position, double beforeMin, double beforeMax, double afterMin, double afterMax );    
+    static double relativePosition( double position, double beforeMin, double beforeMax, double afterMin, double afterMax );
 
   public slots:
     /**Casts object to the proper subclass type and calls corresponding itemAdded signal*/

src/gui/qgsmapcanvas.cpp

@@ -802,10 +802,11 @@ void QgsMapCanvas::keyPressEvent( QKeyEvent * e )
     e->ignore();
   }
 
-  emit keyPressed( e );
-
   if ( mCanvasProperties->mouseButtonDown || mCanvasProperties->panSelectorDown )
+  {
+    emit keyPressed( e );
     return;
+  }
 
   QPainter paint;
   QPen     pen( Qt::gray );
@@ -886,12 +887,14 @@ void QgsMapCanvas::keyPressEvent( QKeyEvent * e )
         {
           mMapTool->keyPressEvent( e );
         }
-        e->ignore();
+        else e->ignore();
 
         QgsDebugMsg( "Ignoring key: " + QString::number( e->key() ) );
-
     }
   }
+
+  emit keyPressed( e );
+
 } //keyPressEvent()
 
 void QgsMapCanvas::keyReleaseEvent( QKeyEvent * e )
@@ -921,8 +924,7 @@ void QgsMapCanvas::keyReleaseEvent( QKeyEvent * e )
       {
         mMapTool->keyReleaseEvent( e );
       }
-
-      e->ignore();
+      else e->ignore();
 
       QgsDebugMsg( "Ignoring key release: " + QString::number( e->key() ) );
   }

src/gui/qgsrelationmanagerdialog.cpp

@@ -119,7 +119,7 @@ void QgsRelationManagerDialog::on_mBtnAddRelation_clicked()
 void QgsRelationManagerDialog::on_mBtnRemoveRelation_clicked()
 {
   if ( mRelationsTable->currentIndex().isValid() )
-  mRelationsTable->removeRow( mRelationsTable->currentItem()->row() );
+    mRelationsTable->removeRow( mRelationsTable->currentItem()->row() );
 }
 
 QList< QgsRelation > QgsRelationManagerDialog::relations()

src/plugins/grass/qgsgrassmapcalc.cpp

@@ -829,9 +829,12 @@ void QgsGrassMapcalc::deleteItem()
 
 void QgsGrassMapcalc::keyPressEvent( QKeyEvent * e )
 {
-  if ( e->key() == Qt::Key_Delete )
+  if ( e->key() == Qt::Key_Backspace || e->key() == Qt::Key_Delete )
   {
     deleteItem();
+
+    // Override default shortcut management in MapCanvas
+    e->ignore();
   }
 }