Query Widget

The Query class in the ptolemy.gui package provides a very simple interface for creating on-screen controls for parameter values. The controls include entry boxes, check boxes, and sliders. Below is an example that includes one of each type of query that is supported. Such a combination of queries is not particularly attractive, and is rarely needed, but it illustrates the features.

If you were able to run applets, you would have one here.

Notice that if you change the values, the change is reported in the status bar of the browser. See the source code to see how to create a widget like this.

An instance of Query can be placed in a modal dialog using the ComponentDialog class.