X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fcanvas%2Ftracking_text.cc;h=1b3004b3b1f5fd4becfbd23e228c8b4233c9dfaa;hb=f549fcfb7663ec0c37b1e176a742fbe6616fdab3;hp=ea44102f8f2bf6f6d046a70d6897d0e47b20687f;hpb=4eb565e0a9ea54715dcf2c9dd15d9c5f3ceb74e1;p=ardour.git

diff --git a/libs/canvas/tracking_text.cc b/libs/canvas/tracking_text.cc
index ea44102f8f..1b3004b3b1 100644
--- a/libs/canvas/tracking_text.cc
+++ b/libs/canvas/tracking_text.cc
@@ -70,7 +70,7 @@ TrackingText::pointer_motion (Duple const & winpos)
 	pos = pos.translate (offset);
 
 	/* keep inside the window */
-	
+
 	Rect r (0, 0, _canvas->width(), _canvas->height());
 
 	/* border of 200 pixels on the right, and 50 on all other sides */
@@ -83,7 +83,7 @@ TrackingText::pointer_motion (Duple const & winpos)
 	r.y1 = std::max (r.y0, (r.y1 - border));
 
 	/* clamp */
-	
+
 	if (pos.x < r.x0) {
 		pos.x = r.x0;
 	} else if (pos.x > r.x1) {
@@ -112,7 +112,7 @@ TrackingText::show_and_track (bool tx, bool ty)
 
 	if (!was_visible) {
 		/* move to current pointer location. do this after show() so that
-		 * _visible is true, and thus ::pointer_motion() will do 
+		 * _visible is true, and thus ::pointer_motion() will do
 		 * something.
 		 */
 		Duple winpos;
@@ -128,17 +128,23 @@ TrackingText::show_and_track (bool tx, bool ty)
 void
 TrackingText::set_x_offset (double o)
 {
+        begin_change ();
 	offset.x = o;
+        end_change ();
 }
 
 void
 TrackingText::set_y_offset (double o)
 {
+        begin_change ();
 	offset.y = o;
+        end_change ();
 }
 
 void
 TrackingText::set_offset (Duple const & d)
 {
+        begin_change ();
 	offset = d;
+        end_change ();
 }