Deprecated several map canvas signals related to rendering

src/gui/qgsmapcanvas.cpp

@@ -433,8 +433,6 @@ void QgsMapCanvas::refresh()
     // Tell the user we're going to be a while
     QApplication::setOverrideCursor( Qt::WaitCursor );
 
-    emit renderStarting();
-
     mMap->render();
 
     mDirty = false;
@@ -445,19 +443,12 @@ void QgsMapCanvas::refresh()
     emit renderComplete( &p );
     p.end();
 
-    // notifies current map tool
-    if ( mMapTool )
-      mMapTool->renderComplete();
-
     // Tell the user we've finished going to be a while
     QApplication::restoreOverrideCursor();
   }
 
   mDrawing = false;
 
-  // Done refreshing
-  emit mapCanvasRefreshed();
-
   if ( logRefresh )
   {
     QString logMsg = tr( "Canvas refresh: %1 ms" ).arg( t.elapsed() );

src/gui/qgsmapcanvas.h

@@ -333,7 +333,8 @@ class GUI_EXPORT QgsMapCanvas : public QGraphicsView
 
   signals:
     /** Let the owner know how far we are with render operations */
-    void setProgress( int, int );
+    //! @deprecated since 2.1 - already unused in 2.0 anyway
+    Q_DECL_DEPRECATED void setProgress( int, int );
 
     /** emits current mouse position
         \note changed in 1.3 */
@@ -353,15 +354,19 @@ class GUI_EXPORT QgsMapCanvas : public QGraphicsView
      being rendered onto a pixmap other than the mapCanvas own pixmap member.
 
     */
-    void renderComplete( QPainter * );
+    //! @deprecated since 2.1 - anything related to rendering progress is not visible outside of map canvas
+    //! - additional drawing shall be done directly within the renderer job or independently as a map canvas item
+    Q_DECL_DEPRECATED void renderComplete( QPainter * );
 
     /** Emitted when canvas finished a refresh request.
     \note Added in 2.0 */
-    void mapCanvasRefreshed();
+    //! @deprecated since 2.1 - anything related to rendering progress is not visible outside of map canvas
+    Q_DECL_DEPRECATED void mapCanvasRefreshed();
 
     /** Emitted when the canvas is about to be rendered.
       \note Added in 1.5 */
-    void renderStarting();
+    //! @deprecated since 2.1 - anything related to rendering progress is not visible outside of map canvas
+    Q_DECL_DEPRECATED void renderStarting();
 
     //! Emitted when a new set of layers has been received
     void layersChanged();

src/plugins/grass/qgsgrassregion.cpp

@@ -258,8 +258,6 @@ QgsGrassRegion::QgsGrassRegion( QgsGrassPlugin *plugin,  QgisInterface *iface,
 
   refreshGui();
 
-  connect( mCanvas, SIGNAL( renderComplete( QPainter * ) ), this, SLOT( postRender( QPainter * ) ) );
-
   // Connect entries
   connect( mNorth, SIGNAL( editingFinished() ), this, SLOT( northChanged() ) );
   connect( mSouth, SIGNAL( editingFinished() ), this, SLOT( southChanged() ) );