X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/066f1b7a9580fc6c487efa753d61e3683de61407..365796b153d710b08a03b92de241574d01c498d7:/src/generic/scrlwing.cpp?ds=sidebyside

diff --git a/src/generic/scrlwing.cpp b/src/generic/scrlwing.cpp
index 726b6c1935..bce06f0b5e 100644
--- a/src/generic/scrlwing.cpp
+++ b/src/generic/scrlwing.cpp
@@ -18,7 +18,7 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
     #pragma implementation "genscrolwin.h"
 #endif
 
@@ -40,8 +40,11 @@
 
 #include "wx/scrolwin.h"
 #include "wx/panel.h"
+#if wxUSE_TIMER
 #include "wx/timer.h"
+#endif
 #include "wx/sizer.h"
+#include "wx/recguard.h"
 
 #ifdef __WXMSW__
     #include <windows.h> // for DLGC_WANTARROWS
@@ -91,6 +94,7 @@ private:
     DECLARE_NO_COPY_CLASS(wxScrollHelperEvtHandler)
 };
 
+#if wxUSE_TIMER
 // ----------------------------------------------------------------------------
 // wxAutoScrollTimer: the timer used to generate a stream of scroll events when
 // a captured mouse is held outside the window
@@ -175,6 +179,7 @@ void wxAutoScrollTimer::Notify()
         }
     }
 }
+#endif
 
 // ----------------------------------------------------------------------------
 // wxScrollHelperEvtHandler
@@ -617,6 +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
@@ -718,7 +736,7 @@ void wxScrollHelper::AdjustScrollbars()
         oldh = h;
 
         GetTargetSize( &w, &h );
-    } while ( w != oldw && h != oldh );
+    } while ( w != oldw || h != oldh );
 
 #ifdef __WXMOTIF__
     // Sorry, some Motif-specific code to implement a backing pixmap
@@ -1072,11 +1090,13 @@ bool wxScrollHelper::SendAutoScrollEvents(wxScrollWinEvent& event) const
 
 void wxScrollHelper::StopAutoScrolling()
 {
+#if wxUSE_TIMER
     if ( m_timerAutoScroll )
     {
         delete m_timerAutoScroll;
         m_timerAutoScroll = (wxTimer *)NULL;
     }
+#endif
 }
 
 void wxScrollHelper::HandleOnMouseEnter(wxMouseEvent& event)
@@ -1138,6 +1158,7 @@ void wxScrollHelper::HandleOnMouseLeave(wxMouseEvent& event)
         if ( !m_targetWindow->HasScrollbar(orient) )
             return;
 
+#if wxUSE_TIMER
         delete m_timerAutoScroll;
         m_timerAutoScroll = new wxAutoScrollTimer
                                 (
@@ -1148,6 +1169,7 @@ void wxScrollHelper::HandleOnMouseLeave(wxMouseEvent& event)
                                     orient
                                 );
         m_timerAutoScroll->Start(50); // FIXME: make configurable
+#endif
     }
 }