# -*- encoding: utf-8 -*-
##############################################################################
#
#    OpenERP, Open Source Management Solution	
#    Copyright (C) 2004-2008 Tiny SPRL (<http://tiny.be>). All Rights Reserved
#    $Id$
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################

import re
import reportlab
import reportlab.lib.units

def text_get(node):
    rc = ''
    for node in node.childNodes:
        if node.nodeType == node.TEXT_NODE:
            rc = rc + node.data
    return rc

units = [
    (re.compile('^(-?[0-9\.]+)\s*in$'), reportlab.lib.units.inch),
    (re.compile('^(-?[0-9\.]+)\s*cm$'), reportlab.lib.units.cm),  
    (re.compile('^(-?[0-9\.]+)\s*mm$'), reportlab.lib.units.mm),
    (re.compile('^(-?[0-9\.]+)\s*px$'), 0.7),
    (re.compile('^(-?[0-9\.]+)\s*$'), 1)
]

def unit_get(size):
    global units
    for unit in units:
        res = unit[0].search(size, 0)
        if res:
            return int(unit[1]*float(res.group(1))*1.3)
    return False

def tuple_int_get(node, attr_name, default=None):
    if not node.hasAttribute(attr_name):
        return default
    res = [int(x) for x in node.getAttribute(attr_name).split(',')]
    return res

def bool_get(value):
    return (str(value)=="1") or (value.lower()=='yes')

def attr_get(node, attrs, dict={}):
    res = {}
    for name in attrs:
        if node.hasAttribute(name):
            res[name] =  unit_get(node.getAttribute(name))
    for key in dict:
        if node.hasAttribute(key):
            if dict[key]=='str':
                res[key] = str(node.getAttribute(key))
            elif dict[key]=='bool':
                res[key] = bool_get(node.getAttribute(key))
            elif dict[key]=='int':
                res[key] = int(node.getAttribute(key))
    return res

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