#! /usr/bin/python -t
# _*_ coding: iso-8859-1 _*_
# Last edited on 2010-06-15 21:48:30 by stolfi

MODULE_NAME = "jspnm_image"
MODULE_DESC = "In-core format and ops for PPM/PGM images"
MODULE_VERS = "1.0"

MODULE_COPYRIGHT = "Copyright © 2010 State University of Campinas"

MODULE_INFO = "!!! MODULE_INFO to be written"

import sys
import re
import string
import copy

# Functions for parsing UNIX command line arguments.

class jspnm_image_t :
  "A parser for command line options.\n" \
  "\n" \
  "  An {jspnm_image_t} instance is three numbers {chns,cols,rows}, an" \
  " integer {maxval}, and a three-dimensional array" \
  " of integer samples in the range {0..maxval}.  The first index is the channel, then" \
  " raster column and row.\n"
  
  def __init__(pp, chns, cols, rows, maxval) :
    "Initalizes a {jspnm_image_t} instance and creates the sample array."
    
    # Instance setup:
    pp.chns = chns;
    pp.cols = cols;
    pp.rows = rows;
    pp.maxval = maxval;
    pp.smp = make_sample_array(nx, ny)
  
    assert (maxval > 0);
    assert (chns == 1) or (chns == 3);
  # ----------------------------------------------------------------------

def make_sample_array(chns,cols,rows) :
  sys.stderr.write("allocating array\n");
  a = chns*[None];
  for c in range(chns) :
    a[c] = copy.copy(rows*[None])
    for y in range(rows) :
      a[y] = copy.copy(nx*[None])
  return a;
  # ----------------------------------------------------------------------

help_info_NO_WARRANTY = \
  "This software is provided 'as is', WITHOUT ANY EXPLICIT OR" \
  " IMPLICIT WARRANTY, not even the implied warranties of merchantibility" \
  " and fitness for a particular purpose."

help_info_STANDARD_RIGHTS = \
  "Permission to use, copy, modify, and redistribute this software and" \
  " its documentation for any purpose is hereby granted, royalty-free," \
  " provided that: (1) the copyright notice at the top of this" \
  " file, and the AUTHOR, WARRANTY and RIGHTS sections of this" \
  " text are retained in all derived source files; (2) no executable" \
  " code derived from this file is published or distributed without the" \
  " corresponding source code; and (3) these same rights are granted to" \
  " any recipient of such code, under the same conditions."