From bad3ed60df5179004224645c8ba6375e79f02c35 Mon Sep 17 00:00:00 2001
From: Hannu Haahti <grejppi@gmail.com>
Date: Fri, 17 Jan 2014 15:44:43 +0200
Subject: [PATCH] Prevent piano roll window from being resized to 0px height
 (http://sourceforge.net/p/lmms/patches/43/)

---
 src/gui/piano_roll.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gui/piano_roll.cpp b/src/gui/piano_roll.cpp
index 39a12611b..6679120a1 100644
--- a/src/gui/piano_roll.cpp
+++ b/src/gui/piano_roll.cpp
@@ -618,7 +618,7 @@ pianoRoll::pianoRoll() :
 	if( engine::mainWindow()->workspace() )
 	{
 		engine::mainWindow()->workspace()->addSubWindow( this );
-		parentWidget()->setMinimumWidth( tb_layout->minimumSize().width()+10 );
+		parentWidget()->setMinimumSize( tb_layout->minimumSize().width()+10, 200 );
 		parentWidget()->resize( tb_layout->minimumSize().width()+10,
 						INITIAL_PIANOROLL_HEIGHT );
 		parentWidget()->hide();