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; Copyright (c) Dave Ray, 2011. 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.
(ns ^{:doc "Functions for associating metadata with frames and widgets, etc."
:author "Dave Ray"}
seesaw.meta)
(defprotocol Meta
(put-meta! [this key value])
(get-meta [this key]))
(def ^{:private true} meta-map (java.util.WeakHashMap.))
(extend-protocol Meta
Object
(put-meta! [this key value]
(if-let [this-map (.get ^java.util.Map meta-map this)]
(.put ^java.util.Map this-map key value)
(.put ^java.util.Map meta-map this (doto (java.util.HashMap.)
(.put key value))))
this)
(get-meta [this key]
(when-let [this-map (.get ^java.util.Map meta-map this)]
(.get ^java.util.Map this-map key)))
javax.swing.JComponent
(put-meta! [this key value] (doto this (.putClientProperty key value)))
(get-meta [this key] (.getClientProperty this key))
javax.swing.Action
(put-meta! [this key value] (doto this (.putValue (str key) value)))
(get-meta [this key] (.getValue this (str key))))
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