src/Pure/General/swing.scala

Reintroduce set_interpreter for Collect and op :.
I removed them by accident when removing old code that dealt with the "set" type.
Incidentally, there is still some broken "set" code in Refute that should be fixed (see TODO in refute.ML).

/*  Title:      Pure/General/swing.scala
    Author:     Makarius

Swing utilities.
*/

package isabelle

import javax.swing.SwingUtilities

object Swing
{
  def now(body: => Unit) {
    if (SwingUtilities.isEventDispatchThread) body
    else SwingUtilities.invokeAndWait(new Runnable { def run = body })
  }

  def later(body: => Unit) {
    if (SwingUtilities.isEventDispatchThread) body
    else SwingUtilities.invokeLater(new Runnable { def run = body })
  }
}