From 5a3401c66eeb5f73599a4882bbc313cd9efee2a0 Mon Sep 17 00:00:00 2001
From: Jean-Marc Lasgouttes <lasgouttes@lyx.org>
Date: Thu, 7 Jul 2016 14:21:55 +0200
Subject: [PATCH] Revert "Skip all drawing with NoScreenUpdate strategy"

This reverts commit b874bdfd402a94428c8f5fe7ef2180146069120a.

It was commited by mistake and actually does not seem to improve
performance.
---
 src/BufferView.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/BufferView.cpp b/src/BufferView.cpp
index cff66ba5aa..f02cb66686 100644
--- a/src/BufferView.cpp
+++ b/src/BufferView.cpp
@@ -3079,8 +3079,12 @@ void BufferView::draw(frontend::Painter & pain)
 	switch (d->update_strategy_) {
 
 	case NoScreenUpdate:
+		// If no screen painting is actually needed, only some the different
+		// coordinates of insets and paragraphs needs to be updated.
 		LYXERR(Debug::PAINTING, "Strategy: NoScreenUpdate");
-		// nothing to do
+		pi.full_repaint = true;
+		pi.pain.setDrawingEnabled(false);
+		tm.draw(pi, 0, y);
 		break;
 
 	case SingleParUpdate: