MSForms: Make Drop-Down form field to have a default size

Similar to MSO Drop-down form field and LO Input List.

Change-Id: Idba278d8c2a2106b6f3cc22d8b9f8570f45bfae9
Reviewed-on: https://gerrit.libreoffice.org/67908
Tested-by: Jenkins
Reviewed-by: Tamás Zolnai <tamas.zolnai@collabora.com>

include/xmloff/odffields.hxx

@@ -22,7 +22,7 @@
 
 
 #define ODF_FORMTEXT "vnd.oasis.opendocument.field.FORMTEXT"
-#define ODF_FORMTEXT_DEFAULT_LENGTH 5
+#define ODF_FORMFIELD_DEFAULT_LENGTH 5
 
 #define ODF_FORMCHECKBOX "vnd.oasis.opendocument.field.FORMCHECKBOX"
 #define ODF_FORMCHECKBOX_HELPTEXT "Checkbox_HelpText"

sw/source/core/text/itrform2.cxx

@@ -859,7 +859,9 @@ namespace sw { namespace mark {
             if (nCurrentIdx < vListEntries.getLength())
                 return vListEntries[nCurrentIdx];
         }
-        return OUString();
+
+        sal_Unicode vEnSpaces[ODF_FORMFIELD_DEFAULT_LENGTH] = {8194, 8194, 8194, 8194, 8194};
+        return OUString(vEnSpaces, ODF_FORMFIELD_DEFAULT_LENGTH);
     }
 } }
 

sw/source/uibase/shells/textfld.cxx

@@ -725,8 +725,8 @@ FIELD_INSERT:
                 if(pCursorPos)
                 {
                     // Insert five enspace into the text field so the field has extent
-                    sal_Unicode vEnSpaces[ODF_FORMTEXT_DEFAULT_LENGTH] = {8194, 8194, 8194, 8194, 8194};
-                    bool bSuccess = rSh.GetDoc()->getIDocumentContentOperations().InsertString(*pCursorPos, OUString(vEnSpaces, ODF_FORMTEXT_DEFAULT_LENGTH));
+                    sal_Unicode vEnSpaces[ODF_FORMFIELD_DEFAULT_LENGTH] = {8194, 8194, 8194, 8194, 8194};
+                    bool bSuccess = rSh.GetDoc()->getIDocumentContentOperations().InsertString(*pCursorPos, OUString(vEnSpaces, ODF_FORMFIELD_DEFAULT_LENGTH));
                     if(bSuccess)
                     {
                         IDocumentMarkAccess* pMarksAccess = rSh.GetDoc()->getIDocumentMarkAccess();