From 6d53b35f5b43de526248945aa046e37e8192845e Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Tue, 24 Apr 2012 11:50:41 +0200
Subject: Actually lock X for middle mouse button panning


diff --git a/src/glview.cc b/src/glview.cc
index 12657b8..aa2e746 100644
--- a/src/glview.cc
+++ b/src/glview.cc
@@ -603,6 +603,9 @@ void GLView::mouseMoveEvent(QMouseEvent *event)
 			if (event->buttons() & Qt::MiddleButton) {
 				my = mz;
 				mz = 0;
+				// actually lock the x-position
+				// (turns out to be easier to use than xy panning)
+				mx = 0;
 			}
 
 			Matrix3d aax, aay, aaz, tm3;
-- 
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