gistfile1.java

import java.awt.Color
import groovy.swing.SwingBuilder
import griffon.builder.trident.TridentBuilder

def trident = new TridentBuilder()
def swing = new SwingBuilder()
swing.edt {
  frame( title: "Trident+Groovy", size: [400,200],
         locationRelativeTo: null, visible: true ) {
    flowLayout()
    button = button("Sample")
    timeline = trident.timeline(button, duration: 2500) {
      trident.interpolatedProperty("foreground",
        from: Color.BLUE, to: Color.RED)
    }
    noparent {
      bean(button,
        mouseEntered: {timeline.play()},
        mouseExited: {timeline.playReverse()})
    }
  }
}