change tracking:

	* paragraph.h: add method isUnchanged(..)

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15511 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/paragraph.h b/src/paragraph.h
index fedd97c3c3e0da1f50d99733d30ece73e4100da5..be0d0b1ef7df8dbfb3fd900d3adea8bd334531b8 100644 (file)
--- a/src/paragraph.h
+++ b/src/paragraph.h
@@ -198,6 +198,10 @@ public:
 
        /// is there a change within the given range ?
        bool isChanged(pos_type start, pos_type end) const;
+       /// is there an unchanged char at the given pos ?
+       bool isUnchanged(pos_type pos) const {
+               return lookupChange(pos).type == Change::UNCHANGED;
+       }
        /// is there an insertion at the given pos ?
        bool isInserted(pos_type pos) const {
                return lookupChange(pos).type == Change::INSERTED;