Source code for camelot.view.action_steps.select_file

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from PyQt4 import QtGui
  
from camelot.admin.action import ActionStep
from camelot.core.exception import CancelRequest

[docs]class SelectFile( ActionStep ): """Select one or more files to open or to process. :param file_name_filter: Filter on the names of the files that can be selected, such as 'All files (*)'. See :class:`QtGui.QFileDialog` for more documentation. .. attribute:: single defaults to :keyword:`True`, set to :keyword:`False` if selection of multiple files is allowed .. attribute:: existing defaults to :keyword:`True`, set to :keyword:`False` if non existing files are allowed (to save something) The :keyword:`yield` statement of :class:`SelectFile` returns a list of selected file names. This list has only one element when single is set to :keyword:`True`. Raises a :class:`camelot.core.exception.CancelRequest` when no file was selected. .. image:: /_static/actionsteps/select_file.png """ def __init__( self, file_name_filter = '' ): self.file_name_filter = file_name_filter self.single = True self.existing = True
[docs] def render( self ): """create the file dialog widget. this method is used to unit test the action step.""" dialog = QtGui.QFileDialog( filter = self.file_name_filter ) if self.existing == False: file_mode = QtGui.QFileDialog.AnyFile else: if self.single == True: file_mode = QtGui.QFileDialog.ExistingFile else: file_mode = QtGui.QFileDialog.ExistingFiles dialog.setFileMode( file_mode ) return dialog
[docs] def gui_run( self, gui_context ): dialog = self.render() if dialog.exec_() == QtGui.QDialog.Rejected: raise CancelRequest() file_names = [unicode(fn) for fn in dialog.selectedFiles()] return file_names

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