Moved the check for page scrolling with the wheel into wxMouseEvent so

it wouldn't have to be duplicated everywhere.

Also fixed wxSTC so it can handle wheel page scrolling too.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16218 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/scrlwing.cpp

@@ -1084,10 +1084,6 @@ void wxScrollHelper::HandleOnMouseLeave(wxMouseEvent& event)
 
 #if wxUSE_MOUSEWHEEL
 
-#ifndef  WHEEL_PAGESCROLL
-#define WHEEL_PAGESCROLL  (UINT_MAX)   // signifies to scroll a page
-#endif
-
 void wxScrollHelper::HandleOnMouseWheel(wxMouseEvent& event)
 {
     m_wheelRotation += event.GetWheelRotation();
@@ -1103,7 +1099,7 @@ void wxScrollHelper::HandleOnMouseWheel(wxMouseEvent& event)
         newEvent.SetOrientation(wxVERTICAL);
         newEvent.m_eventObject = m_win;
 
-        if (event.GetLinesPerAction() == WHEEL_PAGESCROLL)
+        if (event.IsPageScroll())
         {
             if (lines > 0)
                 newEvent.m_eventType = wxEVT_SCROLLWIN_PAGEUP;