X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c4513b23896c274eb859e0856d7e391b04f77819..1e52188741389278cd99abf79218162c87024ba3:/src/generic/scrlwing.cpp

diff --git a/src/generic/scrlwing.cpp b/src/generic/scrlwing.cpp
index bf9a58d3fa..8dab9a85f1 100644
--- a/src/generic/scrlwing.cpp
+++ b/src/generic/scrlwing.cpp
@@ -44,6 +44,7 @@
 #include "wx/timer.h"
 #endif
 #include "wx/sizer.h"
+#include "wx/recguard.h"
 
 #ifdef __WXMSW__
     #include <windows.h> // for DLGC_WANTARROWS
@@ -621,6 +622,19 @@ int wxScrollHelper::CalcScrollInc(wxScrollWinEvent& event)
 // Adjust the scrollbars - new version.
 void wxScrollHelper::AdjustScrollbars()
 {
+    static wxRecursionGuardFlag s_flagReentrancy;
+    wxRecursionGuard guard(s_flagReentrancy);
+    if ( guard.IsInside() )
+    {
+        // don't reenter AdjustScrollbars() while another call to
+        // AdjustScrollbars() is in progress because this may lead to calling
+        // ScrollWindow() twice and this can really happen under MSW if
+        // SetScrollbar() call below adds or removes the scrollbar which
+        // changes the window size and hence results in another
+        // AdjustScrollbars() call
+        return;
+    }
+
 #ifdef __WXMAC__
     m_targetWindow->Update();
 #endif
@@ -1289,24 +1303,6 @@ wxGenericScrolledWindow::MSWWindowProc(WXUINT nMsg,
 
 #endif // __WXMSW__
 
-#if WXWIN_COMPATIBILITY
-
-void wxGenericScrolledWindow::GetScrollUnitsPerPage (int *x_page, int *y_page) const
-{
-      *x_page = GetScrollPageSize(wxHORIZONTAL);
-      *y_page = GetScrollPageSize(wxVERTICAL);
-}
-
-void wxGenericScrolledWindow::CalcUnscrolledPosition(int x, int y, float *xx, float *yy) const
-{
-    if ( xx )
-        *xx = (float)(x + m_xScrollPosition * m_xScrollPixelsPerLine);
-    if ( yy )
-        *yy = (float)(y + m_yScrollPosition * m_yScrollPixelsPerLine);
-}
-
-#endif // WXWIN_COMPATIBILITY
-
 #endif // !wxGTK
 
 // vi:sts=4:sw=4:et