gistfile1.java

import groovy.swing.SwingBuilder
import griffon.builder.trident.*
import griffon.builder.gfx.*
import griffon.builder.gfx.swing.*
import groovy.beans.Bindable

@Bindable
class Model {
  float s = 0.5f
  float ra = 0.0f
}
def model = new Model()

def gfx = new GfxBuilder()
def node = gfx.group {
  antialias true
  rect(id: "r", x: 75, y: 75, w: 50, h: 50, f: color('blue'),
    sx: bind{model.s}, sy: bind{model.s}, ra: bind{model.ra})
}

def swing = new SwingBuilder()
swing.edt {
  frame(size: [210,220], visible: true) {
    widget(new GfxCanvas(), id: "canvas", node: node)
  }
}

def trident = new TridentBuilder()

trident.with {
  timeline(model, duration: 2000, loop: 'reverse') {
    interpolatedProperty(property: "s", from: 0.5f, to: 2.0f)
    interpolatedProperty(property: "ra", from: 0f, to: 359f)
  }
  swingRepaintTimeline(swing.canvas, loop: true)
}

/*
int direction = 1
trident.swingRepaintTimeline(swing.canvas, loop: true)
trident.timeline(duration: 2000) {
  timelineCallback {
    timelinePulse { df, tp ->
      model.s += direction * 0.1
      if(model.s >= 2.0) direction = -1
      else if(model.s <= 0.5) direction = 1
    }
  }
}
*/