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-rw-r--r--ipl/mprocs/evutils.icn94
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-############################################################################
-#
-# File: evutils.icn
-#
-# Subject: Procedures to support event monitoring
-#
-# Author: Clinton L. Jeffery
-#
-# Date: November 23, 1997
-#
-############################################################################
-#
-# This file is in the public domain.
-#
-############################################################################
-#
-# This may not be the latest version of this file, despite the date.
-#
-############################################################################
-#
-# Requires: Version 9 graphics
-#
-############################################################################
-
-#
-# location() - encodes a two-dimensional location in an integer
-#
-procedure location(x, y)
- return ishift(x, 16) + y
-end
-
-#
-# vertical() - returns the y/line/row component of a location
-#
-procedure vertical(Loc)
- return iand(Loc, 65535) # 16 least-significant bits
-end
-
-#
-# horizontal - returns the x/column component of a location
-#
-procedure horizontal(Loc)
- return ishift(Loc, -16) # 16 most-significant bits
-end
-
-#
-# prog_len() return the number of lines in TP
-# Don't call until EvInit() has been called.
-#
-procedure prog_len()
- local basename, fname, f, count
- #
- # Extract TP's &file keyword
- #
- basename := fname := keyword("file", EventSource)
- if (not (f := open(fname))) & lpath := getenv("LPATH") || " " then {
- #
- # Search LPATH for the file if it wasn't in the current directory.
- #
- lpath ? {
- while dir := tab(find(" ")) do {
- if fname := dir || "/" || basename & (f := open(fname)) then break
- }
- if /f then fail
- }
- }
- count := 0
- every !f do count +:= 1
- close(f)
- return count
-end
-
-#
-# procedure_name() - return the name of a procedure
-#
-procedure procedure_name(p)
- return image(p)[10:0] # strip off "procedure " prefix of image
-end
-
-#
-# XHeight(w) - return window height in pixels
-#
-procedure XHeight(w)
- /w := &window
- return WAttrib(w, "height")
-end
-
-#
-# XWidth(w) - return window width in pixels
-#
-procedure XWidth(w)
- /w := &window
- return WAttrib(w, "width")
-end