seFileSelector.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"
__abstract__ = "A customizable file open dialog class"
__author__   = """S. Tuvi <stuvi@slac.Stanford.edu>
                  SLAC - GLAST LAT I&T/Online"""
__date__     = "2005/11/09 00:08:27"
__updated__  = "$Date: 2005/11/10 03:45:39 $"
__version__  = "$Revision: 1.1 $"
__release__  = "$Name: HEAD $"
__credits__  = "SLAC"

import LICOS.copyright_SLAC

import os

from qt import QFileDialog

class seFileSelector(QFileDialog):
  """!\brief A customizable file open dialog class.

  """
  def __init__(self, startwith, filter, parent, name):
    """!\brief seFileSelector constructor.

    \param startwith File path to start with
    \param filter    File extension filter
    \param parent    Parent GUI
    \param name      GUI name
    """
    QFileDialog.__init__(self, parent, name, 0)
    self.setMode(QFileDialog.ExistingFile)
    self.setFilter(filter)
    self.setDir(os.path.dirname(startwith))
    self.setCaption(name)
    self.setViewMode( QFileDialog.Detail)
    self.setSelection(startwith)

  def getValue(self):
    """!\brief Retrieve the file name selected.

    \return Full path of the file selected or
            None if the user cancelled file selection.
    """
    if self.exec_loop() == QFileDialog.Accepted:
      return str(self.selectedFile())
    else:
      return None

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