#12 FunctionComposition sync errors

[Tom Downey]

The FunctionComposition applet can have a slider and an x input field. Dragging the slider updates the x input and the draggable point, but dragging the point does not update either the x input or the slider.

Also, if you click on Use Mouse to create a TableFunction, drag a couple of the function definition points, then drag the draggable point box, errors appear on the Java console (due to one of the Tie's causing a sync to happen on the x input while the x input is in the middle of processing a sync).

Need to look at how the Ties are wired up in this applet, and how VariableInput and VariableJSlider handle sync.

[Tom Downey]

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I think this is a duplicate of the VariableInput problem with always firing document events on a tie sync, even when nothing has changed.