Added possibility to change zoom using toolbar in GAL.

common/drawframe.cpp

@@ -426,6 +426,20 @@ void EDA_DRAW_FRAME::OnSelectZoom( wxCommandEvent& event )
             return;
 
         GetScreen()->SetZoom( selectedZoom );
+
+        if( m_galCanvasActive )
+        {
+            // Apply computed view settings to GAL
+            KiGfx::VIEW* view = m_galCanvas->GetView();
+            KiGfx::GAL* gal = m_galCanvas->GetGAL();
+
+            double zoomFactor = gal->GetWorldScale() / gal->GetZoomFactor();
+            double zoom = 1.0 / ( zoomFactor * GetZoom() );
+
+            view->SetScale( zoom );
+            m_galCanvas->Refresh();
+        }
+        else
             RedrawScreen( GetScreen()->GetScrollCenterPosition(), false );
     }
 }