X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e74d06a33b48f4335bf628da028c2a02676a92a6..6d94009faa51ae4018e08ced13cfdfe575b03f08:/src/common/fontmap.cpp

diff --git a/src/common/fontmap.cpp b/src/common/fontmap.cpp
index 87b28c7bd2..be05e44b85 100644
--- a/src/common/fontmap.cpp
+++ b/src/common/fontmap.cpp
@@ -163,14 +163,17 @@ wxFontMapper::~wxFontMapper()
 {
 }
 
+bool wxFontMapper::IsWxFontMapper()
+{   return true; }
+
 /* static */
-// Declared as returning wxFontMapper when wxUSE_GUI=1.  Unfortunately, it's
-// only implemented in wxBase library.  Note that if the last resort
-// is taken and GUI code tries to treat it as a real wxFontMapper
-// then you'd be in trouble.
 wxFontMapper *wxFontMapper::Get()
 {
-    return (wxFontMapper*)wxFontMapperBase::Get();
+    wxFontMapperBase *fontmapper = wxFontMapperBase::Get();
+    wxASSERT_MSG(fontmapper->IsWxFontMapper(), wxT("GUI code requested a wxFontMapper but we only have a wxFontMapperBase."));
+    // Now return it anyway because there's a chance the GUI code might just
+    // only want to call wxFontMapperBase functions.
+    return (wxFontMapper*)fontmapper;
 }
 
 wxFontEncoding