What is the best way to do GUIs in Clojure?

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Is there an example of some functional Swing or SWT wrapper? Or some integration with JavaFX declarative GUI description

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无人共我

2020-12-07 07:14

There is a wrapper for MigLayout in clojure contrib. You can also take a look at this gist. I am basically putting up whatever code I am writing as I am learning swing/miglayout.

dsm's example re-written in a lispy way using contrib.swing-utils

(ns test
      (:import (javax.swing JButton JFrame))
      (:use (clojure.contrib
          [swing-utils :only (add-action-listener)])))

    (defn handler
      [event]
      (JOptionPane/showMessageDialog nil,
        (str "<html>Hello from <b>Clojure</b>. Button "
          (.getActionCommand event) " clicked.")))

    (let [ frame (JFrame. "Hello Swing") 
           button (JButton. "Click Me")  ]
      (add-action-listener button handler)
        (doto frame
          (.setDefaultCloseOperation JFrame/EXIT_ON_CLOSE)
          (.add button)
          (.pack)
          (.setVisible true)))

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-上瘾入骨i

2020-12-07 07:18

I will humbly suggest Seesaw.

Here's a REPL-based tutorial that assumes no Java or Swing knowledge.

Seesaw's a lot like what @tomjen suggests. Here's "Hello, World":

(use 'seesaw.core)

(-> (frame :title "Hello"
       :content "Hello, Seesaw"
       :on-close :exit)
  pack!
  show!)

and here's @Abhijith and @dsm's example, translated pretty literally:

(ns seesaw-test.core
  (:use seesaw.core))

(defn handler
  [event]
  (alert event
    (str "<html>Hello from <b>Clojure</b>. Button "
      (.getActionCommand event) " clicked.")))

(-> (frame :title "Hello Swing" :on-close :exit
           :content (button :text "Click Me" :listen [:action handler]))
  pack!
  show!)

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逝去的感伤

2020-12-07 07:26

My preferred Clojure UI environment uses IO.js (Node for ES6) + Electron (Container) + Quiescent (ReactJS wrapper).

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离开以前

2020-12-07 07:27

There's been talk on the mailing list about a few Cells (a la Kenny Tilton's Cells) implementations. It's a pretty neat way to do GUI programming.

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暖寄归人

2020-12-07 07:29

Stuart Sierra recently published a series of blog posts on GUI-development with clojure (and swing). Start off here: http://stuartsierra.com/2010/01/02/first-steps-with-clojure-swing

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情书的邮戳

2020-12-07 07:29

From this page:

(import '(javax.swing JFrame JButton JOptionPane)) ;'
(import '(java.awt.event ActionListener))          ;'

(let [frame (JFrame. "Hello Swing")
     button (JButton. "Click Me")]
 (.addActionListener button
   (proxy [ActionListener] []
     (actionPerformed [evt]
       (JOptionPane/showMessageDialog  nil,
          (str "<html>Hello from <b>Clojure</b>. Button "
               (.getActionCommand evt) " clicked.")))))

 (.. frame getContentPane (add button))

 (doto frame
   (.setDefaultCloseOperation JFrame/EXIT_ON_CLOSE)
   .pack
   (.setVisible true)))

print("code sample");

And, of course, it would be worth looking at the interoperability section of clojure's website.

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