Use mousewheel to turn book pages.

apps/openmw/mwgui/bookwindow.cpp

@@ -130,26 +130,12 @@ namespace MWGui
 
     void BookWindow::onNextPageButtonClicked (MyGUI::Widget* sender)
     {
-        if ((mCurrentPage+1)*2 < mPages.size())
+        nextPage();
-        {
-            MWBase::Environment::get().getSoundManager()->playSound ("book page2", 1.0, 1.0);
-
-            ++mCurrentPage;
-
-            updatePages();
-        }
     }
 
     void BookWindow::onPrevPageButtonClicked (MyGUI::Widget* sender)
     {
-        if (mCurrentPage > 0)
+        prevPage();
-        {
-            MWBase::Environment::get().getSoundManager()->playSound ("book page", 1.0, 1.0);
-
-            --mCurrentPage;
-
-            updatePages();
-        }
     }
 
     void BookWindow::updatePages()
@@ -195,4 +181,27 @@ namespace MWGui
             button->setPosition(button->getPosition() + MyGUI::IntPoint(diff.width,0));
     }
     
+    void BookWindow::nextPage()
+    {
+	if ((mCurrentPage+1)*2 < mPages.size())
+        {
+            MWBase::Environment::get().getSoundManager()->playSound ("book page2", 1.0, 1.0);
+
+            ++mCurrentPage;
+
+            updatePages();
+        }
+    }
+    void BookWindow::prevPage()
+    {
+	if (mCurrentPage > 0)
+        {
+            MWBase::Environment::get().getSoundManager()->playSound ("book page", 1.0, 1.0);
+
+            --mCurrentPage;
+
+            updatePages();
+        }
+    }
+
 }

apps/openmw/mwgui/bookwindow.hpp

@@ -16,7 +16,8 @@ namespace MWGui
 
             void open(MWWorld::Ptr book);
             void setTakeButtonShow(bool show);
-
+            void nextPage();
+            void prevPage();
             void setInventoryAllowed(bool allowed);
 
         protected:

apps/openmw/mwinput/inputmanagerimp.cpp

@@ -25,6 +25,7 @@
 #include "../mwbase/world.hpp"
 #include "../mwbase/windowmanager.hpp"
 #include "../mwbase/soundmanager.hpp"
+#include "../mwgui/bookwindow.hpp"
 
 namespace MWInput
 {
@@ -553,6 +554,15 @@ namespace MWInput
                 MWBase::Environment::get().getWorld()->changeVanityModeScale(arg.state.Z.rel);
         }
         
+        //if the player is reading a book and flicking the mouse wheel
+        if (MWBase::Environment::get().getWindowManager()->getMode() == MWGui::GM_Book && arg.state.Z.rel)
+        {
+            if (arg.state.Z.rel < 0)
+                MWBase::Environment::get().getWindowManager()->getBookWindow()->nextPage();
+            else
+                MWBase::Environment::get().getWindowManager()->getBookWindow()->prevPage();
+        }
+
         return true;
     }