ArgumentImpl.py

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#!/usr/local/bin/python
#
#                               Copyright 2005
#                                     by
#                        The Board of Trustees of the
#                     Leland Stanford Junior University.
#                            All rights reserved.
#

__facility__ = "Online"
__author__   = "A. Kavelaars <aliciak@SLAC.Stanford.edu> SLAC - GLAST LAT I&T/Online"
__abstract__ = "Argument GUI implementation module"
__date__     = "2003/11/20 00:00:00"
__updated__  = "$Date: 2005/09/21 23:54:51 $"
__version__  = "$Revision: 1.4 $"
__release__  = "$Name: HEAD $"
__credits__  = "SLAC"

import LICOS.copyright_SLAC

import sys
from qt import *
from Argument import Argument


class ArgumentImpl(Argument):
  """!\brief Generic class to provide an input dialog for operator input.

  """
  def __init__(self, parent = None,name = None, modal = 0, fl = 0):
    """!\brief ArgumentImpl constructor

    \param parent Parent GUI
    \param name   GUI name
    \param modal  Whether the dialog is modal or not
    \param fl     GUI flags
    """
    Argument.__init__(self,parent,name,modal,fl)

    self.__label = 0

    self.connect(self.OKButton,SIGNAL("clicked()"),self.OKButtonClicked)
    self.connect(self.CancelButton,SIGNAL("clicked()"),self.CancelButtonClicked)

  def OKButtonClicked(self):
    """!\brief Handle OK button click.

    """
    self.__value = int(self.ArgumentList.text().latin1())
    self.close()

  def getValue(self, caption, value = None):
    """!\brief Show the dialog box and wait for user input.

    \param caption Input dialog title
    \param value   Default value

    \return Input value
    """
    if value is not None:
      self.ArgumentList.setText(str(value))
    self.ArgLabel.setText(caption)
    self.show()
    self.exec_loop()
    return self.__value

  def CancelButtonClicked(self):
    """!\brief Handle Cancel button click.

    """
    self.close()

if __name__ == "__main__":
    a = QApplication(sys.argv)
    QObject.connect(a,SIGNAL("lastWindowClosed()"),a,SLOT("quit()"))
    w = ArgumentImpl()
    a.setMainWidget(w)
    w.show()
    a.exec_loop()

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