Fixed joystick hat not receiving 'CENTER' event (fixes #300).

Changes.txt

@@ -1,4 +1,18 @@
-5.1 to 5.2: (MMM d, 2018)
+===========================================================================
+
+     SSSS    tt          lll  lll
+    SS  SS   tt           ll   ll
+    SS     tttttt  eeee   ll   ll   aaaa
+     SSSS    tt   ee  ee  ll   ll      aa
+        SS   tt   eeeeee  ll   ll   aaaaa  --  "An Atari 2600 VCS Emulator"
+    SS  SS   tt   ee      ll   ll  aa  aa
+     SSSS     ttt  eeeee llll llll  aaaaa
+
+===========================================================================
+                              Release History
+===========================================================================
+
+5.1.1 to 5.2: (MMM d, 2018)
 
   * Extra functionality for Time Machine dialog (start/stop recording;
     minor fixes; TODO button and initial key repeats...)
@@ -7,6 +21,16 @@
 
   * UI modernization (new widget look, dialog titles added, dialogs refactored)
 
+  * Fixed bug in UI navigation with joystick hat movement.
+
+-Have fun!
+
+
+5.1 to 5.1.1: (February 21, 2018)
+
+  * Fixed bug in Stargunner ROM starting with a blank screen.
+
+
 5.0.2 to 5.1: (February 4, 2018)
 
   * Added "Time Machine" mode, which automatically creates save states
@@ -141,8 +165,6 @@
 
   * Updated included PNG library to latest stable version.
 
--Have fun!
-
 
 5.0.1 to 5.0.2: (August 20, 2017)
 

src/common/EventHandlerSDL2.cxx

@@ -111,7 +111,7 @@ void EventHandlerSDL2::pollEvent()
       case SDL_JOYHATMOTION:
       {
         int v = myEvent.jhat.value, value = 0;
-        if(v & SDL_HAT_CENTERED)
+        if(v == SDL_HAT_CENTERED)
           value  = EVENT_HATCENTER_M;
         else
         {