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#------------------------------------------------------------------------------
# Copyright (c) 2007, Riverbank Computing Limited
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD license.
# However, when used with the GPL version of PyQt the additional terms described in the PyQt GPL exception also apply
#
# Author: Riverbank Computing Limited
# Description: <Enthought pyface package component>
#------------------------------------------------------------------------------
# Standard library imports.
import os
# Major package imports.
from pyface.qt import QtCore, QtGui
# Enthought library imports.
from traits.api import Enum, Int, List, provides, Unicode
# Local imports.
from pyface.i_file_dialog import IFileDialog, MFileDialog
from .dialog import Dialog
import six
@provides(IFileDialog)
class FileDialog(MFileDialog, Dialog):
""" The toolkit specific implementation of a FileDialog. See the
IFileDialog interface for the API documentation.
"""
#### 'IFileDialog' interface ##############################################
action = Enum('open', 'open files', 'save as')
default_directory = Unicode
default_filename = Unicode
default_path = Unicode
directory = Unicode
filename = Unicode
path = Unicode
paths = List(Unicode)
wildcard = Unicode
wildcard_index = Int(0)
###########################################################################
# 'MFileDialog' *CLASS* interface.
###########################################################################
# In Windows, Qt needs only a * while wx needs a *.*
WILDCARD_ALL = "All files (*)|*"
@classmethod
def create_wildcard(cls, description, extension):
""" Creates a wildcard for a given extension. """
if isinstance(extension, six.string_types):
pattern = extension
else:
pattern = ' '.join(extension)
return "%s (%s)|%s|" % (description, pattern, pattern)
###########################################################################
# Protected 'IDialog' interface.
###########################################################################
def _create_contents(self, parent):
# In PyQt this is a canned dialog.
pass
###########################################################################
# 'IWindow' interface.
###########################################################################
def close(self):
# Get the path of the chosen directory.
files = self.control.selectedFiles()
if files:
self.path = six.text_type(files[0])
self.paths = [six.text_type(file) for file in files]
else:
self.path = ''
self.paths = ['']
# Extract the directory and filename.
self.directory, self.filename = os.path.split(self.path)
# Get the index of the selected filter.
self.wildcard_index = self.control.nameFilters().index(
self.control.selectedNameFilter())
# Let the window close as normal.
super(FileDialog, self).close()
###########################################################################
# Protected 'IWidget' interface.
###########################################################################
def _create_control(self, parent):
# If the caller provided a default path instead of a default directory
# and filename, split the path into it directory and filename
# components.
if len(self.default_path) != 0 and len(self.default_directory) == 0 \
and len(self.default_filename) == 0:
default_directory, default_filename = os.path.split(self.default_path)
else:
default_directory = self.default_directory
default_filename = self.default_filename
# Convert the filter.
filters = []
for filter_list in self.wildcard.split('|')[::2]:
# Qt uses spaces instead of semicolons for extension separators
filter_list = filter_list.replace(';', ' ')
filters.append(filter_list)
# Set the default directory.
if not default_directory:
default_directory = QtCore.QDir.currentPath()
dlg = QtGui.QFileDialog(parent, self.title, default_directory)
dlg.setViewMode(QtGui.QFileDialog.Detail)
dlg.selectFile(default_filename)
dlg.setNameFilters(filters)
if self.wildcard_index < len(filters):
dlg.selectNameFilter(filters[self.wildcard_index])
if self.action == 'open':
dlg.setAcceptMode(QtGui.QFileDialog.AcceptOpen)
dlg.setFileMode(QtGui.QFileDialog.ExistingFile)
elif self.action == 'open files':
dlg.setAcceptMode(QtGui.QFileDialog.AcceptOpen)
dlg.setFileMode(QtGui.QFileDialog.ExistingFiles)
else:
dlg.setAcceptMode(QtGui.QFileDialog.AcceptSave)
dlg.setFileMode(QtGui.QFileDialog.AnyFile)
return dlg
###########################################################################
# Trait handlers.
###########################################################################
def _wildcard_default(self):
""" Return the default wildcard. """
return self.WILDCARD_ALL
#### EOF ######################################################################
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