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;; Copyright (c) Stephen C. Gilardi. All rights reserved. The use and
;; distribution terms for this software are covered by the Eclipse Public
;; License 1.0 (http://opensource.org/licenses/eclipse-1.0.php) which can
;; be found in the file epl-v10.html at the root of this distribution. By
;; using this software in any fashion, you are agreeing to be bound by the
;; terms of this license. You must not remove this notice, or any other,
;; from this software.
;;
;; clojure.contrib.swing-utils
;;
;; Useful functions for interfacing Clojure to Swing
;;
;; scgilardi (gmail)
;; Created 31 May 2009
(ns clojure.contrib.swing-utils
(:import (java.awt.event ActionListener KeyAdapter)
(javax.swing SwingUtilities)))
(defn add-action-listener
"Adds an ActionLister to component. When the action fires, f will be
invoked with the event as its first argument followed by args.
Returns the listener."
[component f & args]
(let [listener (proxy [ActionListener] []
(actionPerformed [event] (apply f event args)))]
(.addActionListener component listener)
listener))
(defn add-key-typed-listener
"Adds a KeyListener to component that only responds to KeyTyped events.
When a key is typed, f is invoked with the KeyEvent as its first argument
followed by args. Returns the listener."
[component f & args]
(let [listener (proxy [KeyAdapter] []
(keyTyped [event] (apply f event args)))]
(.addKeyListener component listener)
listener))
;; ----------------------------------------------------------------------
;; Meikel Brandmeyer
(defn do-swing*
"Runs thunk in the Swing event thread according to schedule:
- :later => schedule the execution and return immediately
- :now => wait until the execution completes."
[schedule thunk]
(cond
(= schedule :later) (SwingUtilities/invokeLater thunk)
(= schedule :now) (if (SwingUtilities/isEventDispatchThread)
(thunk)
(SwingUtilities/invokeAndWait thunk)))
nil)
(defmacro do-swing
"Executes body in the Swing event thread asynchronously. Returns
immediately after scheduling the execution."
[& body]
`(do-swing* :later (fn [] ~@body)))
(defmacro do-swing-and-wait
"Executes body in the Swing event thread synchronously. Returns
after the execution is complete."
[& body]
`(do-swing* :now (fn [] ~@body)))
;; ----------------------------------------------------------------------
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