#!/usr/bin/python

# Copyright 2011 Anthony Tong <atong@trustedcs.com>

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#     http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

"""

tool to preconvert an icon file to a x11 property as expected

by ewm hints spec:

width, length, [argb pixels]

"""

import PIL

import PIL.Image

import os

import sys

def usage():

	print "convert_to_ewm_prop <infile> <outfile>"

	return 1

def main(argv):

	if len(argv) != 3:

		return usage()

	im = PIL.Image.open(argv[1])

	fp = open(argv[2], 'w')

	var_name = os.path.basename(argv[2])

	if var_name.endswith('.h'):

		var_name = var_name[:-2]

	fp.write("static unsigned long %s_prop [] = {\n" % var_name)

	fp.write(" %d, %d\n" % im.size)

	i = 0

	for pixel in im.getdata():

		r,g,b,a = pixel

		pixel = b 

		pixel |= g << 8

		pixel |= r << 16

		pixel |= a << 24

		fp.write(" , %du" % pixel)

		i += 1

		if i % 8 == 0:

			fp.write("\n")

	fp.write("};\n")

if __name__ == '__main__':

	sys.exit(main(sys.argv))