__all__ = ('convert', 'default', 'round_units', 'decompose')
from .form import *
import cbpos
logger = cbpos.get_logger(__name__)
def convert(price_in_src, src, dst):
if price_in_src == 0:
return 0
if src == dst:
return price_in_src
logger.debug(u'Converting {} from {} to {}'.format(repr(price_in_src), src,
dst))
price_in_dst = price_in_src * src.current_rate.reference_to_currency_ratio * dst.current_rate.currency_to_reference_ratio
logger.debug(u'Price in {}: {}'.format(dst, repr(price_in_dst)))
return price_in_dst
_default_cache = None
def get_default():
global _default_cache
if _default_cache is None:
from PySide import QtGui, QtCore
import cbpos
logger = cbpos.get_logger(__name__)
class InvalidPrinterFunction(ValueError):
pass
class InvalidPrinterName(ValueError):
pass
class PrinterManager(object):
NoPrinter = -1
def __init__(self):
pass
def prompt_printer(self, name, printer=None):
"""
Opens a dialog to let the user configure a printer.
"""
if printer is None:
qprinter = QtGui.QPrinter()
else:
# TODO: On Windows (at least), the copy count is not showing in the dialog
# and I suspect others too not to update...
qprinter = QtGui.QPrinter(printer.qprinter)
print_dialog = QtGui.QPrintDialog(qprinter)
