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############################################################################
#
# File: anim.icn
#
# Subject: Program to show animated display of Icon source code
#
# Author: Gregg M. Townsend, modified by Ralph E. Griswold
#
# Date: February 28, 1997
#
############################################################################
#
# This file is in the public domain.
#
############################################################################
#
# anim displays a miniaturized program listing, highlighting each
# line as it is executed.
#
# Two accompanying barcharts display execution profiles. The one on
# the extreme left shows the number of clock ticks attributable to each
# source line. The second chart shows the number of times each line was
# executed.
#
# A chart to the right of the listing displays a time-based history
# similar to that of the "roll" program (q.v.).
#
# usage: anim [options] [arg...]
#
# -d n decay after n new line events
# -b n length of barcharts (0 to disable)
# -z n length of history (0 to disable)
# -t n ticks per history pixel
#
# -s n vertical line spacing, in pixels
# -w n width of one character, in pixels
# -h n height of one character, in pixels
# -p n set in pointsize n (OpenWindows only; overrides -w and -h)
#
# -P x program text color
# -C x comment color
# -A x active text color
# -O x old-text color (after fading)
# -R x background color for barcharts and history
# -S n spacing between sections of the display
#
# plus standard options from optwindow.icn
# (-F sets the color used for the barcharts and history)
#
# Setting -s or -p establishes good defaults for the other sizes.
#
# It is assumed that the program source file can be found by appending
# ".icn" to the icode file name.
#
############################################################################
#
# Requires: Version 9 graphics
#
############################################################################
#
# Links: em_setup, evinit, evmux, barchart, decay, options, optwindw,
# strpchrt
#
############################################################################
#
# Includes: evdefs.icn
#
############################################################################
$include "evdefs.icn"
link em_setup
link evinit
link evmux
link barchart
link decay
link options
link optwindw
link strpchrt
global progname, opttab, ifile, font
global gcP, gcC, gcA, gcO, gcR
global margin, gutter, textx
global code, pos1, pos2
global xsiz, ysiz, spacing, dp
procedure main(args)
local win, len, lno, cs, i, maxlines, lifetime
local hchart, hlength, hscale
local barlength, barwidth, linescale, linecount, linebars
local nticks, tickscale, tickcount, tickbars
local src, linemask
linemask := 2 ^ 16 -1
progname := "anim"
maxlines := 1000
opttab := options (args, winoptions() || "d+b+z+t+s+w+h+p+P:C:A:O:R:S:")
lifetime := \opttab["d"] | 3
barlength := \opttab["b"] | 40
hlength := \opttab["z"] | 90
tickscale := 1.00
linescale := 0.25
hscale := \opttab["t"] | 10
gutter := \opttab["S"] | 10
# default to tiny-text mode under OpenWindows
if (not \opttab[!"swhp"]) & getenv ("NEWSSERVER") then
opttab["p"] := 6
if i := \opttab["p"] then {
i >:= 13 # maximum size
font := "lucidasanstypewriter-" || i
# -p 1 2 3 4 5 6 7 8 9 10 11 12 13
xsiz := [1,1,2,2,3,4,4, 5, 5 ,6, 7, 7, 8] [i]
ysiz := [2,3,4,5,7,8,9,10,11,11,12,13,14] [i]
spacing := \opttab["s"] | i
}
else {
spacing := \opttab["s"] | \opttab["h"] + 1 | 4
xsiz := \opttab["w"] | 0 < integer (0.6 * spacing + 0.5) | 1
ysiz := \opttab["h"] | 0 < spacing - 1 | 1
}
EvInit (args) | stop ("can't load icode file")
# read source file into memory
src := prog_name()
ifile := open(src) | stop (progname, ": can't open ", src)
every put(code := [], detab(trim(!ifile \ maxlines)))
pos1 := list(*code)
pos2 := list(*code)
every i := 1 to *code do
code[i] ? {
tab(many(' '))
if pos(0) | ="#" then next
pos1[i] := &pos
pos2[i] := pos1[i] + *trim(tab(upto('#')|0))
}
if /opttab["W"] then { # calculate window width if not specified
len := 0
every len <:= *!code
len *:= xsiz
if barlength > 0 then
len +:= 2 * barlength + 2 * gutter
if hlength > 0 then
len +:= gutter + hlength
opttab["W"] := len
}
/opttab["H"] := spacing * *code
/opttab["L"] := "Anim"
/opttab["F"] := "goldenrod"
/opttab["R"] := "floralwhite"
/opttab["M"] := -1
win := optwindow (opttab, "cursor=off", "echo=off")
if \font then
Font (win, font) | stop ("can't set font ", font)
margin := opttab["M"]
Bg (gcR := Clone(win), opttab["R"])
if barlength = 0 then
textx := margin
else {
barwidth := spacing - 1
if barwidth = 0 then
barwidth := 1
tickcount := list (*code, 0)
tickbars := barchart (gcR, margin+barlength-1, margin,
0, spacing, -tickscale, *code, barlength, barwidth)
linecount := list (*code, 0)
linebars := barchart (gcR, margin+barlength+gutter+barlength-1, margin,
0, spacing, -linescale, *code, barlength, barwidth)
textx := margin + 2 * gutter + 2 * barlength
}
if hlength > 0 then {
hchart := stripchart (gcR, margin + opttab["W"] - hlength, margin,
hlength, spacing * *code)
}
if \font then {
Fg (gcP := Clone(win), \opttab["P"] | "gray70")
Fg (gcC := Clone(win), \opttab["C"] | "gray90")
Fg (gcO := Clone(win), \opttab["O"] | "black")
Bg (gcA := Clone(gcO), \opttab["A"] | "red")
}
else {
Fg (gcP := Clone(win), \opttab["P"] | "gray70")
Fg (gcC := Clone(win), \opttab["C"] | "gray90")
Fg (gcA := Clone(win), \opttab["P"] | "indianred")
Fg (gcO := Clone(win), \opttab["O"] | "peachpuff")
}
every i := 1 to *code do {
docmt (gcC, i) # show comments
docode (gcP, i) # show initial code listing
}
dp := dpipe (docode, lifetime, gcA, gcO) # initialize decay pipe
cs := E_Loc ++ E_Tick
nticks := 0
while EvGet (cs) do # for each line event
if &eventcode === E_Loc then {
decay (dp, lno := iand(&eventvalue, linemask)) # mark line
setbar (\linebars, lno, linecount[lno] +:= 1)
smark (\hchart, margin + spacing * (lno-1), margin + spacing * lno - 1)
}
else if &eventcode === E_Tick then {
setbar (\tickbars, \lno, tickcount[\lno] +:= 1)
if (nticks +:= 1) % hscale = 0 then
sadvance (\hchart)
}
every 1 to lifetime do
decay (dp) # flush decay pipe
quitsensor (win, 1) # wait for quit signal
end
procedure docode (gc, lno)
doblock (gc, lno, \pos1[lno], pos2[lno]);
return
end
procedure docmt (gc, lno)
local p
code[lno] ? {
tab(upto('#')) | return
while not pos(0) do {
p := &pos
doblock (gc, lno, p, tab(upto(' ')|0) & &pos)
tab(many(' '))
}
}
return
end
procedure doblock (gc, lno, pos1, pos2)
local x
x := textx + xsiz * (pos1 - 1)
if \font then {
GotoXY(gc, x, margin + spacing * lno - 1)
writes(gc, code[lno][pos1:pos2])
}
else {
FillRectangle(gc, x, margin + spacing*(lno-1), xsiz*(pos2-pos1), ysiz)
}
return
end
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