branch: Allow PgUp and PgDwn to put the cursor on the first or last row.

see r32036.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_1_6_X@32152 a592a061-630c-0410-9148-cb99ea01b6c8

src/TextMetrics.cpp

@@ -1447,8 +1447,8 @@ Row const & TextMetrics::getPitAndRowNearY(int & y, pit_type & pit,
 		if (yy + rit->height() > y)
 			break;
 
-	if (assert_in_view && yy + rit->height() != y) {
-		if (!up) {
+	if (assert_in_view) {
+		if (!up && yy + rit->height() > y) {
 			if (rit != pm.rows().begin()) {
 				y = yy;
 				--rit;
@@ -1460,7 +1460,7 @@ Row const & TextMetrics::getPitAndRowNearY(int & y, pit_type & pit,
 				--rit;
 				y = yy;
 			}
-		} else  {
+		} else if (up && yy != y) {
 			if (rit != rlast) {
 				y = yy + rit->height();
 				++rit;

status.16x

@@ -313,6 +313,8 @@ What's new
 - In the Linguistics module, do not switch to the buffer language in
   glosses (this was only a cosmetic issue in the LyX window).
 
+- Allow PgUp and PgDown to position the cursor on the first or last row.
+
 
 * DOCUMENTATION AND LOCALIZATION