From eda52aa9eeffdf431637caafca573e3f1ef8d50d Mon Sep 17 00:00:00 2001
From: Matthijs Kooijman <matthijs@stdin.nl>
Date: Mon, 24 Aug 2009 22:09:08 +0200
Subject: [PATCH] Make key events work.
---
FPPrac.hs | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
diff --git a/FPPrac.hs b/FPPrac.hs
index 9f5ec9d..2a67b6e 100644
--- a/FPPrac.hs
+++ b/FPPrac.hs
@@ -162,20 +162,29 @@ runGUI w h (IS { .. }) = do
buffer' <- Cairo.createImageSurface Cairo.FormatARGB32 w h
buffer <- newIORef buffer'
+ -- Repack state
+ let state = IS { .. }
+
-- Register events
Gtk.on window Gtk.exposeEvent $ onExpose buffer
Gtk.on window Gtk.configureEvent $ onResize buffer
+ Gtk.on window Gtk.keyPressEvent $ onKeyDown state
- -- Repack state
- let state = IS { .. }
-
-- Process any initial requests
processPostponed state
-- Show the window and start the Gtk mainloop.
Gtk.widgetShowAll window
Gtk.mainGUI
-
+
+-- | Called when a key is pressed.
+onKeyDown :: IState -> EventM.EventM EventM.EKey Bool
+onKeyDown s = do
+ keyval <- EventM.eventKeyVal
+ case Gtk.keyToChar keyval of
+ Just c -> liftIO $ post s (KeyIn c)
+ Nothing -> return ()
+ return True -- No clue what this means
-- | Called when (part of) the window should be redrawn. Copy the given surface
-- to the exposed window on an expose event.
--
2.30.2