From eed1be652a7c645bb1cdc7c5b054545458f7f355 Mon Sep 17 00:00:00 2001
From: Julian Smart <julian@anthemion.co.uk>
Date: Sun, 26 Jan 2003 19:04:10 +0000
Subject: [PATCH] Fixed problem with kill focus event getting sent to control
 that is getting the focus.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@18947 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/mac/carbon/window.cpp | 25 +++++++++++++++++--------
 src/mac/window.cpp        | 25 +++++++++++++++++--------
 2 files changed, 34 insertions(+), 16 deletions(-)

diff --git a/src/mac/carbon/window.cpp b/src/mac/carbon/window.cpp
index 2515e88ca5..c0a47faa5f 100644
--- a/src/mac/carbon/window.cpp
+++ b/src/mac/carbon/window.cpp
@@ -227,24 +227,32 @@ void wxWindowMac::SetFocus()
     {
         if (gFocusWindow )
         {
-            #if wxUSE_CARET
+#if wxUSE_CARET
                 // Deal with caret
                 if ( gFocusWindow->m_caret )
                 {
                       gFocusWindow->m_caret->OnKillFocus();
                 }
-            #endif // wxUSE_CARET
-      #ifndef __WXUNIVERSAL__
+#endif // wxUSE_CARET
+#ifndef __WXUNIVERSAL__
             wxControl* control = wxDynamicCast( gFocusWindow , wxControl ) ;
             if ( control && control->GetMacControl() )
             {
                 UMASetKeyboardFocus( (WindowRef) gFocusWindow->MacGetRootWindow() , (ControlHandle) control->GetMacControl()  , kControlFocusNoPart ) ;
                 control->MacRedrawControl() ;
             }
-            #endif
-            wxFocusEvent event(wxEVT_KILL_FOCUS, gFocusWindow->m_windowId);
-            event.SetEventObject(gFocusWindow);
-            gFocusWindow->GetEventHandler()->ProcessEvent(event) ;
+#endif
+            // Without testing the window id, for some reason
+            // a kill focus event can still be sent to
+            // the control just being focussed.
+            int thisId = this->m_windowId;
+            int gFocusWindowId = gFocusWindow->m_windowId;
+            if (gFocusWindowId != thisId)
+            {
+                wxFocusEvent event(wxEVT_KILL_FOCUS, gFocusWindow->m_windowId);
+                event.SetEventObject(gFocusWindow);
+                gFocusWindow->GetEventHandler()->ProcessEvent(event) ;
+            }
         }
         gFocusWindow = this ;
         {
@@ -1765,7 +1773,8 @@ void wxWindowMac::MacRedraw( WXHRGN updatergnr , long time, bool erase)
         if ( erase && !EmptyRgn(ownUpdateRgn) )
         {
           wxWindowDC dc(this);
-          dc.SetClippingRegion(wxRegion(ownUpdateRgn));
+          if (!EmptyRgn(ownUpdateRgn)) 
+              dc.SetClippingRegion(wxRegion(ownUpdateRgn));
           wxEraseEvent eevent( GetId(), &dc );
           eevent.SetEventObject( this );
           GetEventHandler()->ProcessEvent( eevent );
diff --git a/src/mac/window.cpp b/src/mac/window.cpp
index 2515e88ca5..c0a47faa5f 100644
--- a/src/mac/window.cpp
+++ b/src/mac/window.cpp
@@ -227,24 +227,32 @@ void wxWindowMac::SetFocus()
     {
         if (gFocusWindow )
         {
-            #if wxUSE_CARET
+#if wxUSE_CARET
                 // Deal with caret
                 if ( gFocusWindow->m_caret )
                 {
                       gFocusWindow->m_caret->OnKillFocus();
                 }
-            #endif // wxUSE_CARET
-      #ifndef __WXUNIVERSAL__
+#endif // wxUSE_CARET
+#ifndef __WXUNIVERSAL__
             wxControl* control = wxDynamicCast( gFocusWindow , wxControl ) ;
             if ( control && control->GetMacControl() )
             {
                 UMASetKeyboardFocus( (WindowRef) gFocusWindow->MacGetRootWindow() , (ControlHandle) control->GetMacControl()  , kControlFocusNoPart ) ;
                 control->MacRedrawControl() ;
             }
-            #endif
-            wxFocusEvent event(wxEVT_KILL_FOCUS, gFocusWindow->m_windowId);
-            event.SetEventObject(gFocusWindow);
-            gFocusWindow->GetEventHandler()->ProcessEvent(event) ;
+#endif
+            // Without testing the window id, for some reason
+            // a kill focus event can still be sent to
+            // the control just being focussed.
+            int thisId = this->m_windowId;
+            int gFocusWindowId = gFocusWindow->m_windowId;
+            if (gFocusWindowId != thisId)
+            {
+                wxFocusEvent event(wxEVT_KILL_FOCUS, gFocusWindow->m_windowId);
+                event.SetEventObject(gFocusWindow);
+                gFocusWindow->GetEventHandler()->ProcessEvent(event) ;
+            }
         }
         gFocusWindow = this ;
         {
@@ -1765,7 +1773,8 @@ void wxWindowMac::MacRedraw( WXHRGN updatergnr , long time, bool erase)
         if ( erase && !EmptyRgn(ownUpdateRgn) )
         {
           wxWindowDC dc(this);
-          dc.SetClippingRegion(wxRegion(ownUpdateRgn));
+          if (!EmptyRgn(ownUpdateRgn)) 
+              dc.SetClippingRegion(wxRegion(ownUpdateRgn));
           wxEraseEvent eevent( GetId(), &dc );
           eevent.SetEventObject( this );
           GetEventHandler()->ProcessEvent( eevent );
-- 
2.47.2