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#! /usr/bin/env python
import json
import os
import sys
import re
from math import floor
cr_coord_map = [
[
# Row 0
[ 4, 0], [ 4, 2], [ 2, 0], [ 1, 0], [ 2, 2], [ 3, 0], [ 3, 2],
[ 3, 4], [ 3, 6], [ 2, 4], [ 1, 2], [ 2, 6], [ 4, 4], [ 4, 6],
],
[
# Row 1
[ 8, 0], [ 8, 2], [ 6, 0], [ 5, 0], [ 6, 2], [ 7, 0], [ 7, 2],
[ 7, 4], [ 7, 6], [ 6, 4], [ 5, 2], [ 6, 6], [ 8, 4], [ 8, 6],
],
[
# Row 2
[12, 0], [12, 2], [10, 0], [ 9, 0], [10, 2], [11, 0], [ ],
[ ], [11, 2], [10, 4], [ 9, 2], [10, 6], [12, 4], [12, 6],
],
[
# Row 3
[17, 0], [17, 2], [15, 0], [14, 0], [15, 2], [16, 0], [13, 0],
[13, 2], [16, 2], [15, 4], [14, 2], [15, 6], [17, 4], [17, 6],
],
[
# Row 4
[20, 0], [20, 2], [19, 0], [18, 0], [19, 2], [], [], [], [],
[19, 4], [18, 2], [19, 6], [20, 4], [20, 6],
],
[
# Row 5
[ ], [23, 0], [22, 2], [22, 0], [22, 4], [21, 0], [21, 2],
[24, 0], [24, 2], [25, 0], [25, 4], [25, 2], [26, 0], [ ],
],
]
def set_attr_at(j, b, n, attr, fn, val):
blk = j[b][n]
if attr in blk:
blk[attr] = fn(blk[attr], val)
else:
blk[attr] = fn(None, val)
def coord(col, row):
return cr_coord_map[row][col]
def set_attr(orig, new):
return new
def set_bg(j, (b, n), color):
set_attr_at(j, b, n, "c", set_attr, color)
#set_attr_at(j, b, n, "g", set_attr, False)
def _set_tap_info(o, count, cap):
ns = 4 - o.count ("\n")
return o + "\n" * ns + "%.02f%%" % (float(count) / float(cap) * 100)
def set_tap_info(j, (b, n), count, cap):
j[b][n + 1] = _set_tap_info (j[b][n + 1], count, cap)
def heatmap_color (v):
colors = [ [0.3, 0.3, 1], [0.3, 1, 0.3], [1, 1, 0.3], [1, 0.3, 0.3]]
fb = 0
if v <= 0:
idx1, idx2 = 0, 0
elif v >= 1:
idx1, idx2 = len(colors) - 1, len(colors) - 1
else:
val = v * (len(colors) - 1)
idx1 = int(floor(val))
idx2 = idx1 + 1
fb = val - float(idx1)
r = (colors[idx2][0] - colors[idx1][0]) * fb + colors[idx1][0]
g = (colors[idx2][1] - colors[idx1][1]) * fb + colors[idx1][1]
b = (colors[idx2][2] - colors[idx1][2]) * fb + colors[idx1][2]
r, g, b = [x * 255 for x in r, g, b]
return "#%02x%02x%02x" % (r, g, b)
# Load the keylog
def load_keylog(fname, restrict_row):
keylog = {}
total = 0
with open(fname, "r") as f:
lines = f.readlines()
for line in lines:
m = re.search ('KL: col=(\d+), row=(\d+)', line)
if not m:
continue
(c, r) = (int(m.group (2)), int(m.group (1)))
if restrict_row != None and r != int(restrict_row):
continue
if (c, r) in keylog:
keylog[(c, r)] = keylog[(c, r)] + 1
else:
keylog[(c, r)] = 1
total = total + 1
return total / 2, keylog
def l_flat(s):
f = s.split("\n")
return ", ".join (f)
def main(base_fn, log_fn, restrict_row = None):
with open(base_fn, "r") as f:
layout = json.load (f)
## Reset colors
for row in cr_coord_map:
for col in row:
if col != []:
set_bg (layout, col, "#d9dae0")
#set_attr_at (layout, col[0], col[1], "g", set_attr, True)
total, log = load_keylog (log_fn, restrict_row)
max_cnt = 0
for (c, r) in log:
max_cnt = max(max_cnt, log[(c, r)])
# Create the heatmap
for (c, r) in log:
coords = coord(c, r)
b, n = coords
cap = max_cnt
v = float(log[(c, r)]) / cap
print >> sys.stderr, "%s => %d/%d => %f = %s" % (l_flat(layout[b][n+1]), log[(c,r)], cap, v, heatmap_color(v))
set_bg (layout, coord(c, r), heatmap_color (v))
set_tap_info (layout, coord (c, r), log[(c, r)], total)
print json.dumps(layout)
if __name__ == "__main__":
if len(sys.argv) < 3:
print """Log to Heatmap -- creates a heatmap out of keyboard logs
Usage: log-to-heatmap.py base-layout.json logfile [row] >layout.json"""
sys.exit (1)
main(*sys.argv[1:])
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