From eb0c794eb2cac361354641acaae82f7cf6ff8f4e Mon Sep 17 00:00:00 2001
From: nyalldawson <nyall.dawson@gmail.com>
Date: Thu, 10 Oct 2013 21:08:34 +1100
Subject: [PATCH] [FEATURE] Allow panning compositions by dragging with middle
 mouse button

---
 src/gui/qgscomposerview.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/gui/qgscomposerview.cpp b/src/gui/qgscomposerview.cpp
index c41c4376223..39f1c677f2d 100644
--- a/src/gui/qgscomposerview.cpp
+++ b/src/gui/qgscomposerview.cpp
@@ -105,6 +105,19 @@ void QgsComposerView::mousePressEvent( QMouseEvent* e )
     }
     return;
   }
+  else if ( e->button() == Qt::MidButton )
+  {
+    //pan composer with middle button
+    mPanning = true;
+    mMouseLastXY = e->pos();
+    if ( composition() )
+    {
+      //lock cursor to closed hand cursor
+      composition()->setPreventCursorChange( true );
+    }
+    viewport()->setCursor( Qt::ClosedHandCursor );
+    return;
+  }
 
   switch ( mCurrentTool )
   {