From c93a9c50a513155e0606c990978d63b6e5ca1f5f Mon Sep 17 00:00:00 2001
From: Stefan Csomor <csomor@advancedconcepts.ch>
Date: Tue, 16 Jul 2013 05:13:35 +0000
Subject: [PATCH] never return negative client sizes, fixes #15338

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74538 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/osx/window_osx.cpp | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/src/osx/window_osx.cpp b/src/osx/window_osx.cpp
index e8ce2cfc67..bba95e6e8a 100644
--- a/src/osx/window_osx.cpp
+++ b/src/osx/window_osx.cpp
@@ -872,9 +872,22 @@ void wxWindowMac::DoGetClientSize( int *x, int *y ) const
 
 #endif
     if (x)
-       *x = ww;
+    {
+        // we shouldn't return invalid width
+        if ( ww < 0 )
+            ww = 0;
+        
+        *x = ww;
+    }
+    
     if (y)
-       *y = hh;
+    {
+        // we shouldn't return invalid height
+        if ( hh < 0 )
+            hh = 0;
+        
+        *y = hh;
+    }
 }
 
 bool wxWindowMac::SetCursor(const wxCursor& cursor)
-- 
2.47.2