+void wxScrollBar::MacHandleControlClick( WXWidget control, wxInt16 controlpart, bool mouseStillDown )
+{
+ int position = m_peer->GetValue();
+ int minPos = m_peer->GetMinimum();
+ int maxPos = m_peer->GetMaximum();
+
+ wxEventType scrollEvent = wxEVT_NULL;
+ int nScrollInc = 0;
+
+ // all events have already been reported during mouse down, except for THUMBRELEASE
+ if ( !mouseStillDown && controlpart != kControlIndicatorPart )
+ return;
+
+ switch ( controlpart )
+ {
+ case kControlUpButtonPart:
+ nScrollInc = -1;
+ scrollEvent = wxEVT_SCROLL_LINEUP;
+ break;
+
+ case kControlDownButtonPart:
+ nScrollInc = 1;
+ scrollEvent = wxEVT_SCROLL_LINEDOWN;
+ break;
+
+ case kControlPageUpPart:
+ nScrollInc = -m_pageSize;
+ scrollEvent = wxEVT_SCROLL_PAGEUP;
+ break;
+
+ case kControlPageDownPart:
+ nScrollInc = m_pageSize;
+ scrollEvent = wxEVT_SCROLL_PAGEDOWN;
+ break;
+
+ case kControlIndicatorPart:
+ nScrollInc = 0;
+ if ( mouseStillDown )
+ scrollEvent = wxEVT_SCROLL_THUMBTRACK;
+ else
+ scrollEvent = wxEVT_SCROLL_THUMBRELEASE;
+ break;
+
+ default:
+ wxFAIL_MSG(wxT("unknown scrollbar selector"));
+ break;
+ }
+
+ int new_pos = position + nScrollInc;
+
+ if (new_pos < minPos)
+ new_pos = minPos;
+ else if (new_pos > maxPos)
+ new_pos = maxPos;
+
+ if ( nScrollInc )
+ SetThumbPosition( new_pos );
+
+ wxScrollEvent event( scrollEvent, m_windowId );
+ if ( m_windowStyle & wxHORIZONTAL )
+ event.SetOrientation( wxHORIZONTAL );
+ else
+ event.SetOrientation( wxVERTICAL );
+
+ event.SetPosition( new_pos );
+ event.SetEventObject( this );
+
+ wxWindow* window = GetParent();
+ if (window && window->MacIsWindowScrollbar( this ))
+ // this is hardcoded
+ window->MacOnScroll( event );
+ else
+ GetEventHandler()->ProcessEvent( event );
+}