Add support for paragraph spacing attribute to wxTextCtrl in wxMSW.

Use PFM_SPACEAFTER/PFM_SPACEBEFORE to implement support for them.

Closes #16417.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@77069 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -607,6 +607,7 @@ wxMSW:
 - Fix appearance of wxToggleButtons with non default colours (Artur Wieczorek).
 - Fix drawing on wxDC when using right-to-left layout (Artur Wieczorek).
 - Fix wxGrid appearance and behaviour in RTL (Artur Wieczorek).
+- Add paragraph spacing attributes support to wxTextCtrl (dannchr).
 
 
 3.0.1: (released 2014-06-15)

src/msw/textctrl.cpp

@@ -2817,6 +2817,24 @@ bool wxTextCtrl::MSWSetParaFormat(const wxTextAttr& style, long start, long end)
         }
     }
 
+#if wxUSE_RICHEDIT2
+    if ( style.HasParagraphSpacingAfter() )
+    {
+        pf.dwMask |= PFM_SPACEAFTER;
+
+        // Convert from 1/10 mm to TWIPS
+        pf.dySpaceAfter = (int) (((double) style.GetParagraphSpacingAfter()) * mm2twips / 10.0) ;
+    }
+
+    if ( style.HasParagraphSpacingBefore() )
+    {
+        pf.dwMask |= PFM_SPACEBEFORE;
+
+        // Convert from 1/10 mm to TWIPS
+        pf.dySpaceBefore = (int) (((double) style.GetParagraphSpacingBefore()) * mm2twips / 10.0) ;
+    }
+#endif // wxUSE_RICHEDIT2
+
 #if wxUSE_RICHEDIT2
     if ( m_verRichEdit > 1 )
     {