Do not zoom while scrolling lists, closes #769

src/ui/controls/edit.cpp

@@ -248,7 +248,7 @@ bool CEdit::EventProcess(const Event &event)
     {
         auto data = event.GetData<MouseWheelEventData>();
         Scroll(m_lineFirst - data->y, true);
-        return true;
+        return false;
     }
 
     CControl::EventProcess(event);

src/ui/controls/editvalue.cpp

@@ -190,6 +190,7 @@ bool CEditValue::EventProcess(const Event &event)
         if ( value > m_maxValue )  value = m_maxValue;
         SetValue(value, true);
         HiliteValue(event);
+        return false;
     }
 
     return true;

src/ui/controls/list.cpp

@@ -288,7 +288,7 @@ bool CList::EventProcess(const Event &event)
 
         UpdateScroll();
         UpdateButton();
-        return true;
+        return false;
     }
 
     CControl::EventProcess(event);

src/ui/controls/scroll.cpp

@@ -291,6 +291,7 @@ bool CScroll::EventProcess(const Event &event)
                     m_event->AddEvent(Event(m_buttonDown->GetEventType()));
             }
         }
+        return false;
     }
 
     return true;

src/ui/controls/slider.cpp

@@ -356,6 +356,7 @@ bool CSlider::EventProcess(const Event &event)
                     m_event->AddEvent(Event(m_buttonRight->GetEventType()));
             }
         }
+        return false;
     }
 
     return true;