[_CDCSL_93-16_]<1>Cedar>release>ButtonClasses>ButtonClassesDoc.tioga~

ButtonClassesDoc.tioga

Bier, June 12, 1991 4:25 pm PDT

Button Classes

CEDAR 7.0 — FOR INTERNAL XEROX USE ONLY

Button Classes

Behavior Options for Embedded Buttons

Eric Bier

Abstract: This package is part of the EmbeddedButtons architecture, which includes EmbeddedButtons.df, ButtonClasses.df, ButtonApplications.df, and the participating editors (which include Tioga and Gargoyle). ButtonClasses.df defines how a button behaves when it is pressed. For instance, a PopUpButton makes a menu appear, MultiStateButton cycles to the next state, and a RadioButton turns on and turns other buttons from its group off.

Created by: Aaron Goodisman

Maintained by: Eric <Bier.pa>

Keywords: Embedded buttons, behavior, PopUpButton, MultiStateButton, RadioButton

XEROX Xerox Corporation
Palo Alto Research Center
3333 Coyote Hill Road
Palo Alto, California 94304

For Internal Xerox Use Only

1. About the Existing Button Classes

There are currently four button classes: Button (a type of guarded button), PopUpButton, MultiStateButton and RadioButton. To learn more about them, read the comments at the beginning of each section of ButtonClassesImpl.mesa.

Another good way to learn about them is to try them. ButtonApplications.df includes a number of test documents that demonstrate all four button classes. For instance, try:

openr ButtonIdeas.tioga