panel.add(previewTransparentRatio = new JSpinner(new SpinnerNumberModel(0.0, 0.0, 1.0, 0.05)), "7,5,FULL,FULL");
previewTransparentRatio.addChangeListener(
new ChangeListenerAction(DockedTypeDescriptor.class,
"previewTransparentRatio",
new ViewContextSource(viewContext, DockedTypeDescriptor.class),
new ToFloatSource(new SpinnerValueSource(previewTransparentRatio)))
);
panel.addEntry(3, 1, "animating : ", animating = new JCheckBox());
animating.setSelected(true);
animating.setAction(new DynamicAction(ToolWindowTypeDescriptor.class,