gridmaker.py

# deco-grid maker
# calculates widths and positions for the deco grid system for arbitrary
# number of columns, cell width and gutter (margin).
# author: Thomas Buchberger <[email protected]>
# last modified: Di  2 Nov 2010 18:05:36 CET

from optparse import OptionParser

def main():

    parser = OptionParser()
    parser.add_option("-c", "--columns", dest="columns", type="int", default=16)
    parser.add_option("-w", "--cell-width", dest="cell_width", type="int", default=40)
    parser.add_option("-g", "--gutter", dest="gutter", type="int", default=20)
    parser.add_option("-m", "--margin", dest="margin", type="int", default=10)
    parser.add_option("-r", "--relative", action="store_true", dest="relative", default=False)
    parser.add_option("-p", "--precision", dest="precision", type="int", default=5)
    (options, args) = parser.parse_args()

    cell_gutter = options.cell_width + options.gutter
    #wtotal = options.columns*(options.cell_width+options.gutter)
    wtotal = options.columns*options.cell_width+(options.columns-1)*options.gutter+2*options.margin
    print "total width: %spx." % wtotal
    for w in range(1, options.columns+1):
        ww = (cell_gutter)*w-options.gutter
        if options.relative:
            print "div.width-%s { width:%s%%; }" % (w, round(100*float(ww)/float(wtotal),options.precision))
        else:
            print "div.width-%s { width:%spx; }" % (w, ww)


    for w in range(0, options.columns):
        pp = cell_gutter*w
        if options.relative:
            print "div.position-%s  { margin-left:%s%%; }" % (w, round(100*float(pp)/float(wtotal)+100*float(options.margin)/float(wtotal)-100,options.precision))
        else:
            print "div.position-%s  { margin-left:%spx; }" % (w, pp-wtotal+options.margin)
if __name__ == '__main__':
    main()