seesaw.applet — seesaw 1.5.0

Macros and functions that make creating an applet with Seesaw a little less painful.

defapplet clj macro

(defapplet &
           {:keys [name init start stop content]
            :or {init (quote (fn [applet]))
                 start (quote (fn [applet]))
                 stop (quote (fn [applet]))
                 content (quote (fn [applet]
                                    (seesaw.core/label "A Seesaw Applet")))}})

Define an applet. This macro does all the gen-class business and takes maps applet lifetime methods to callback functions automatically. Supports the following options:

:name The name of the generated class. Defaults to the current namespace.

:init Function called when the applet is first loaded. Takes a single JApplet argument. This function is called from the UI thread.

:start Function called when the applet is started. Takes a single JApplet argument. This function is called from the UI thread.

:stop Function called when the applet is stopped. Takes a single JApplet argument. This function is called from the UI thread.

:content Function called after :init which should return the content of the applet, for example some kind of panel. It's added to the center of a border pane so it will be resized with the applet.

Note that the namespace containing a call to (defapplet) must be compiled. In Leiningen, this is easiest to do by adding an :aot option to project.clj:

:aot [namespace.with.defapplet]

After that, use "lein uberjar" to build a jar with everything.

Since Seesaw is currently reflection heavy, the resulting jar must be signed:

$ keytool -genkey -alias seesaw -dname "cn=company, c=en" $ keytool -selfcert -alias seesaw -dname "cn=company, c=en" $ lein uberjar $ jarsigner name-of-project-X.X.X-SNAPSHOT-standalone.jar seesaw

Then refer to it from your webpage like this:

<applet archive="name-of-project-X.X.X-standalone.jar" code="namespace/with/defapplet.class" width="200" height="200">

Examples:

See examples/applet project.

See: http://download.oracle.com/javase/7/docs/api/javax/swing/JApplet.html http://download.oracle.com/javase/tutorial/uiswing/components/applet.html http://download.oracle.com/javase/tutorial/deployment/applet/index.html