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Newsgroups: comp.emacs,gnu.emacs.sources
Subject: HERE IT IS: Double-click capabilities for GNU Emacs and Epoch
Keywords: double click Emacs Epoch
Message-ID: <15917@crdgw1.crd.ge.com>
Date: 21 Jan 91 21:06:20 GMT
Reply-To: kinstrey@wsqtba.crd.ge.com (M. A. Kinstrey)
Followup-To: comp.emacs
Distribution: na
Organization: General Electric Corp. R&D, Schenectady, NY
Lines: 41

From: kinstrey@wsqtba.crd.ge.com (M. A. Kinstrey)
Path: wsqtba!kinstrey

Several people have posted requests for double-click capabilities
in GNU Emacs and Epoch, and since I had written a library to do this
last year, I decided to post it. 

The code works with Epoch 3.2, and GNU "XEmacs" 18.55.

Here's a summary of what's available:
   A "double-click" handler determines whether 2 clicks within 1 second
of each other, at the same point location in a buffer, have occurred.
Functions can be assigned to the double-click map, as well as "before"
and "after" mouse-click hooks. For Epoch, the functions can be executed
on mouse-down or mouse-up.
   I tried to make everything user-configurable.
   There are 2 .el files:
      1) mouse-double-click-functions.el :  contains the function definitions
					    and support variable declarations.
      2) mouse-double-click.el : this is the front-end for the .el above.
				 To use double-clicks, do a
				 (load-library "mouse-double-click"). 
				 The variables are all buffer-local-variables, so you
				 can control which buffers are double-click
				 capable. In addition, you can disable the 
	                         double-click at any time by turning off the
                                 double-clicks-allowed flag.
  This was initially developed to duplicate the Macintosh MORE II outliner.
A double-click on a section of text caused the outline body to "hide". 
Outline-mode functions in Emacs were tied to the double-click handler,
and off I went.

  Any questions, comments, etc. can be sent to:
	kinstrey@wsqtba.crd.ge.com
	kinstrey@crd.ge.com


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