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Date: Tue, 10 Dec 1996 03:25:21 GMTServer: NCSA/1.4.2Content-type: text/html<html><head><TITLE>Converting an Existing User Interface to Use Constraints</title></head><body><H2>Converting an Existing User Interface to Use Constraints</H2><p>Author: Bjorn Freeman-Benson<p>Published in <em>Proceedings of the 1993 ACM Symposium on User InterfaceSoftware and Technology</em>, Atlanta, Georgia, November 1993, pages 207-215.<P><hr><H3>Abstract</H3>Constraints have long been championed as a tool for user interfaceconstruction. However, while certain constraint systems have established auser community, constraint-based user interfaces have not yet been widelyadopted. The premise of this paper is that a major stumbling block to theirpervasive use has been the emphasis on designing new interface toolkitsrather than augmenting existing ones. The thesis of the work described inthis paper is that it is possible, and practical, to convert an existinguser interface written in an imperative programming language into a similaruser interface implemented with constraints. This thesis is proved byexample: the conversion of HotDraw into CoolDraw.<P><HR><P>Click <!WA0><a href="ftp://cs.washington.edu/pub/constraints/papers/cooldraw-uist-93.ps.Z">here</a> to get the postscript file.<P>Return to <!WA1><a href="http://www.cs.washington.edu/research/projects/weird/www/index.html">Constraints home page</a>⌨️ 快捷键说明
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