From cde1bcc350419163be16e0dc9957219aed1a0ca3 Mon Sep 17 00:00:00 2001
From: Colin Wallace <wallacoloo@gmail.com>
Date: Thu, 18 Feb 2016 20:16:08 -0800
Subject: [PATCH] Fix #2588 by making Alt+Right shortcut mirror the Alt+Left
 shortcut; Alt+Right sets the PianoRoll to edit the *next* pattern in the song
 editor; Alt+Left = previous.

---
 src/gui/editors/PianoRoll.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/gui/editors/PianoRoll.cpp b/src/gui/editors/PianoRoll.cpp
index 85ef9339b..a8c70c6a9 100644
--- a/src/gui/editors/PianoRoll.cpp
+++ b/src/gui/editors/PianoRoll.cpp
@@ -1081,7 +1081,8 @@ void PianoRoll::keyPressEvent(QKeyEvent* ke )
 				}
 				else if( ke->modifiers() & Qt::AltModifier)
 				{
-					Pattern * p = m_pattern->previousPattern();
+					// switch to editing a pattern adjacent to this one in the song editor
+					Pattern * p = direction > 0 ? m_pattern->nextPattern() : m_pattern->previousPattern();
 					if(p != NULL)
 					{
 						setCurrentPattern(p);