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#! /usr/bin/env python
"""
make-ico.py
LICENSE: This program is put into the public domain by James Stroud, 2008.
"""
import sys
import os
import base64
win16map = """\
UDYKMTYgMQoyNTUKAAAAgAAAAP//AP8AwMDAAICA/wD//wAAgICAAACAgACA//////8AAIAAgIAA
AAD/
"""
def err(msg):
sys.stderr.write("%s\n" % msg)
def usage(err_msg=None):
if err_msg is not None:
err("\n** ERROR **: %s\n" % err_msg)
progname = os.path.basename(sys.argv[0])
err("usage: python %s imagefile\n" % progname)
sys.exit()
def main():
try:
png_file = sys.argv[1]
except IndexError:
usage('No image file given.')
if not os.path.exists(png_file):
usage('The image file given (%s) does not exist.' % png_file)
png_base, extension = os.path.basename(png_file).rsplit('.', 1)
to_delete = []
sizes = [48, 32, 24, 16]
depths = [4, 8, 24]
# these commands are redundant at this point
# however, if this is generalized, this will need to be done
# to ensure the final .ico file is created correctly
sizes.sort(reverse=True)
depths.sort()
to_map = {}
for size in sizes:
name_args = (png_base, size, size)
resized_base = "%s-%02dx%02d" % name_args
resized_name = "%s.png" % resized_base
resize_args = (png_file, size, size, resized_name)
command = 'convert %s -resize %dx%d %s' % resize_args
err(command)
os.system(command)
to_map[size] = resized_base
to_delete.append(resized_name)
ico_parts = []
for depth in depths:
for size in sizes:
resized_base = to_map[size]
resized_name = "%s.png" % resized_base
redepthed_base = "%s-%02d" % (resized_base, depth)
redepthed_name = "%s.pnm" % redepthed_base
redepth_args = (depth, resized_name, redepthed_name)
if depth >= 8:
command = "convert -depth %d %s %s" % redepth_args
else:
command = "convert %s %s" % (resized_name, redepthed_name)
err(command)
os.system(command)
to_delete.append(redepthed_name)
map_base = "%s-%02d" % (resized_base, depth)
map_name = "%s.pam" % map_base
if depth >= 8:
colors = 256
map_args = (colors, redepthed_name, map_name)
command = "pnmcolormap %d %s > %s" % map_args
err(command)
os.system(command)
else:
# for the < 8 bit images, we don't need to calculate the map
open(map_name, 'wb').write(base64.decodestring(win16map))
to_delete.append(map_name)
remapped_base = map_base
remapped_name = "%s.ppm" % remapped_base
remap_args = (map_name, redepthed_name, remapped_name)
command = "pnmremap -mapfile=%s -fs %s > %s" % remap_args
err(command)
os.system(command)
to_delete.append(remapped_name)
ico_parts.append(remapped_name)
icon_names = " ".join(ico_parts)
icon_name = "%s.ico" % png_base
icon_args = (icon_names, icon_name)
command = 'ppmtowinicon %s --output %s' % icon_args
err(command)
os.system(command)
err("rm %s" % " ".join(to_delete))
for p in to_delete:
os.remove(p)
if __name__ == "__main__":
main()
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