handle wxDEFAULT as a default font size (12), not as just some value (70)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@7765 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/font.cpp

@@ -41,6 +41,13 @@
 
 IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
 
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
+
+// the default font size in points
+static const int wxDEFAULT_FONT_SIZE = 12;
+
 // ----------------------------------------------------------------------------
 // wxFontRefData - the internal description of the font
 // ----------------------------------------------------------------------------
@@ -52,7 +59,7 @@ friend class WXDLLEXPORT wxFont;
 public:
     wxFontRefData()
     {
-        Init(12, wxDEFAULT, wxNORMAL, wxNORMAL, FALSE,
+        Init(wxDEFAULT_FONT_SIZE, wxDEFAULT, wxNORMAL, wxNORMAL, FALSE,
              "", wxFONTENCODING_DEFAULT);
     }
 
@@ -170,6 +177,12 @@ bool wxFont::Create(int pointSize,
                     wxFontEncoding encoding)
 {
     UnRef();
+
+    // wxDEFAULT is a valid value for the font size too so we must treat it
+    // specially here (otherwise the size would be 70 == wxDEFAULT value)
+    if ( pointSize == wxDEFAULT )
+        pointSize = wxDEFAULT_FONT_SIZE;
+
     m_refData = new wxFontRefData(pointSize, family, style, weight,
                                   underlined, faceName, encoding);