+void wxSpinButton::MacHandleControlClick( ControlHandle control , SInt16 controlpart )
+{
+ if ( m_macControl == NULL )
+ return ;
+
+ wxEventType scrollEvent = wxEVT_NULL;
+ int nScrollInc;
+
+ switch( controlpart )
+ {
+ case kControlUpButtonPart :
+ nScrollInc = 1;
+ scrollEvent = wxEVT_SCROLL_LINEUP;
+ break ;
+ case kControlDownButtonPart :
+ nScrollInc = -1;
+ scrollEvent = wxEVT_SCROLL_LINEDOWN;
+ break ;
+ }
+
+ m_value = m_value + nScrollInc;
+
+ if (m_value < m_min)
+ {
+ if ( m_windowStyle & wxSP_WRAP )
+ m_value = m_max;
+ else
+ m_value = m_min;
+ }
+
+ if (m_value > m_max)
+ {
+ if ( m_windowStyle & wxSP_WRAP )
+ m_value = m_min;
+ else
+ m_value = m_max;
+ }
+
+ wxScrollEvent event(scrollEvent, m_windowId);
+
+ event.SetPosition(m_value);
+ event.SetEventObject( this );
+ GetEventHandler()->ProcessEvent(event);
+}
+
+// ----------------------------------------------------------------------------
+// size calculation
+// ----------------------------------------------------------------------------