From f724732290cd7a512411ed5043b98dd43927a340 Mon Sep 17 00:00:00 2001
From: scrawl <scrawl@baseoftrash.de>
Date: Mon, 11 Aug 2014 00:51:54 +0200
Subject: [PATCH] Implement mouse wheel journal navigation (Fixes #1790)

---
 apps/openmw/mwgui/journalwindow.cpp | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/apps/openmw/mwgui/journalwindow.cpp b/apps/openmw/mwgui/journalwindow.cpp
index b588ba3e1..3e2006e57 100644
--- a/apps/openmw/mwgui/journalwindow.cpp
+++ b/apps/openmw/mwgui/journalwindow.cpp
@@ -123,6 +123,9 @@ namespace
 
                 getPage (LeftBookPage)->adviseLinkClicked (callback);
                 getPage (RightBookPage)->adviseLinkClicked (callback);
+
+                getPage (LeftBookPage)->eventMouseWheel += MyGUI::newDelegate(this, &JournalWindowImpl::notifyMouseWheel);
+                getPage (RightBookPage)->eventMouseWheel += MyGUI::newDelegate(this, &JournalWindowImpl::notifyMouseWheel);
             }
 
             {
@@ -488,6 +491,14 @@ namespace
             MWBase::Environment::get().getWindowManager ()->popGuiMode ();
         }
 
+        void notifyMouseWheel(MyGUI::Widget* sender, int rel)
+        {
+            if (rel < 0)
+                notifyNextPage(sender);
+            else
+                notifyPrevPage(sender);
+        }
+
         void notifyNextPage(MyGUI::Widget* _sender)
         {
             if (!mStates.empty ())
@@ -509,7 +520,7 @@ namespace
             {
                 unsigned int & page = mStates.top ().mPage;
 
-                if(page > 0)
+                if(page >= 2)
                 {
                     page -= 2;
                     updateShowingPages ();