#!/usr/bin/python
# -*- coding: iso-8859-1 -*-

# Python Imports
import os
import sys
import subprocess

def usage():
    print """Usage: %s border inkscape-export-options file.svg
Export with inkscape use --export-area-drawing but add a border.

Example:
 %s 20 -e file.png file.svg
""" % (
        os.path.basename(sys.argv[0]),
        os.path.basename(sys.argv[0]))

def main():
    if len(sys.argv)<5:
        usage()
        sys.exit()
    border=int(sys.argv[1])
    svgfile=sys.argv[-1]
    assert os.path.exists(svgfile)
    floats=[]
    for item in ["x", "y", "width", "height"]:
        p=subprocess.Popen(["inkscape", "--query-%s" % item,
                            "--without-gui", svgfile],
                           stdout=subprocess.PIPE)
        floats.append(float(p.stdout.read()))

    #area="%.4f:%.4f:%.4f:%.4f" % (
    area="%.0f:%.0f:%.0f:%.0f" % (
        floats[0]-border,
        floats[1]-border,
        floats[0]+floats[2]+border,
        floats[1]+floats[3]+border)
    print floats
    print area
    cmd=["inkscape", "--without-gui", "--export-area=%s" % area]
    cmd.extend(sys.argv[2:])
    p=subprocess.Popen(cmd)
    sys.exit(p.wait())
        
if __name__=="__main__":
    main()