From 566b7f7bbf7b48072d6f93e6bff90ac9cea78071 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Wed, 8 Feb 2006 14:00:34 +0000
Subject: [PATCH] added wxCHANGE_HDC_MAP_MODE to avoid #ifdef __WXWINCE__
 everywhere

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@37385 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 include/wx/msw/private.h | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/include/wx/msw/private.h b/include/wx/msw/private.h
index 4fdca8a4d7..30aebc2836 100644
--- a/include/wx/msw/private.h
+++ b/include/wx/msw/private.h
@@ -519,6 +519,41 @@ private:
     DECLARE_NO_COPY_CLASS(HDCClipper)
 };
 
+// set the given map mode for the life time of this object
+//
+// NB: SetMapMode() is not supported by CE so we also define a helper macro
+//     to avoid using it there
+#ifdef __WXWINCE__
+    #define wxCHANGE_HDC_MAP_MODE(hdc, mm)
+#else // !__WXWINCE__
+    class HDCMapModeChanger
+    {
+    public:
+        HDCMapModeChanger(HDC hdc, int mm)
+            : m_hdc(hdc)
+        {
+            m_modeOld = ::SetMapMode(hdc, mm);
+            if ( !m_modeOld )
+                wxLogLastError(_T("SelectClipRgn"));
+        }
+
+        ~HDCMapModeChanger()
+        {
+            if ( m_modeOld )
+                ::SetMapMode(m_hdc, m_modeOld);
+        }
+
+    private:
+        HDC m_hdc;
+        int m_modeOld;
+
+        DECLARE_NO_COPY_CLASS(HDCMapModeChanger)
+    };
+
+    #define wxCHANGE_HDC_MAP_MODE(hdc, mm) \
+        HDCMapModeChanger wxMAKE_UNIQUE_NAME(wxHDCMapModeChanger)(hdc, mm)
+#endif // __WXWINCE__/!__WXWINCE__
+
 // smart buffeer using GlobalAlloc/GlobalFree()
 class GlobalPtr
 {
-- 
2.45.2