Source code for pyface.i_file_dialog

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""" The interface for a dialog that allows the user to open/save files etc. """


import sys


from traits.api import Enum, HasTraits, Int, List, Str


from pyface.i_dialog import IDialog


[docs]class IFileDialog(IDialog): """ The interface for a dialog that allows the user to open/save files etc. """ # 'IFileDialog' interface ---------------------------------------------# #: The 'action' that the user is peforming on the directory ("open files" #: differs from "open" in that the former supports multiple selections). action = Enum("open", "open files", "save as") #: The default directory. default_directory = Str() #: The default filename. default_filename = Str() #: The default path (directory and filename) of the chosen file. This is #: only used when the *default_directory* and *default_filename* are not set #: and is equivalent to setting both. default_path = Str() #: The directory containing the chosen file. directory = Str() #: The name (basename only) of the chosen file. filename = Str() #: The path (directory and filename) of the chosen file. To be used when only #: single selection is allowed: if *action* is "open files", use *paths* instead. path = Str() #: The paths (directory and filename) of the chosen files. To be used when #: multiple selection is allowed. paths = List(Str()) #: The wildcard used to restrict the set of files. wildcard = Str() #: The index of the selected wildcard. wildcard_index = Int(0)
[docs]class MFileDialog(HasTraits): """ The mixin class that contains common code for toolkit specific implementations of the IFileDialog interface. Implements: create_wildcard() """ # FIXME v3: These are referenced elsewhere so maybe should be part of the # interface. The format is toolkit specific and so shouldn't be exposed. # The create_wildcard() class method (why isn't it a static method?) should # be the basis for this - but nothing seems to use it. For now the PyQt # implementation will convert the wx format to its own. Actually we need # the format to be portable between toolkits - so stick with PyQt # supporting the wx format or invent a data structure. #: A file dialog wildcard for Python files. WILDCARD_PY = "Python files (*.py)|*.py|" #: A file dialog wildcard for text files. WILDCARD_TXT = "Text files (*.txt)|*.txt|" #: A file dialog wildcard for all files. if sys.platform == "win32": WILDCARD_ALL = "All files (*.*)|*.*|" else: WILDCARD_ALL = "All files (*)|*" #: A file dialog wildcard for Zip archives. WILDCARD_ZIP = "Zip files (*.zip)|*.zip|" # ------------------------------------------------------------------------ # 'MFileDialog' *CLASS* interface. # ------------------------------------------------------------------------
[docs] @classmethod def create_wildcard(cls, description, extension): """ Creates a wildcard for a given extension. Parameters ---------- description : str A human-readable description of the pattern. extenstion : list The wildcard patterns for the extension. """ if isinstance(extension, str): pattern = extension else: pattern = ";".join(extension) return "%s (%s)|%s|" % (description, pattern, pattern)