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#------------------------------------------------------------------------------
# Copyright (c) 2005, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
# Thanks for using Enthought open source!
#
# Author: David C. Morrill
# Date: 12/02/2004
# Description: Define the base Tkinter EditorFactory class and Editor classes
# used in a traits-based user interface.
#
# Symbols defined: EditorFactory
#
#------------------------------------------------------------------------------
#-------------------------------------------------------------------------------
# Imports:
#-------------------------------------------------------------------------------
import tk
from enthought.traits.ui.editor_factory import EditorFactory as UIEditorFactory
from enthought.traits.api import TraitError
from editor import Editor
from helper import TkDelegate
#-------------------------------------------------------------------------------
# 'EditorFactory' base class:
#-------------------------------------------------------------------------------
class EditorFactory ( UIEditorFactory ):
#---------------------------------------------------------------------------
# 'Editor' factory methods:
#---------------------------------------------------------------------------
def simple_editor ( self, ui, object, name, description, parent ):
return SimpleEditor( parent,
factory = self,
ui = ui,
object = object,
name = name,
description = description )
def custom_editor ( self, ui, object, name, description, parent ):
return self.simple_editor( ui, object, name, description, parent )
def text_editor ( self, ui, object, name, description, parent ):
return TextEditor( parent,
factory = self,
ui = ui,
object = object,
name = name,
description = description )
def readonly_editor ( self, ui, object, name, description, parent ):
return ReadonlyEditor( parent,
factory = self,
ui = ui,
object = object,
name = name,
description = description )
#-------------------------------------------------------------------------------
# 'SimpleEditor' class:
#-------------------------------------------------------------------------------
class SimpleEditor ( Editor ):
#---------------------------------------------------------------------------
# Finishes initializing the editor by creating the underlying toolkit
# widget:
#---------------------------------------------------------------------------
def init ( self, parent ):
""" Finishes initializing the editor by creating the underlying toolkit
widget.
"""
var = tk.StringVar()
self.control = tk.Label( parent, textvariable = var )
self.control.bind( '<ButtonRelease-1>',
TkDelegate( self.popup_editor, var = var ) )
#---------------------------------------------------------------------------
# Invokes the pop-up editor for an object trait:
#
# (Normally overridden in a subclass)
#---------------------------------------------------------------------------
def popup_editor ( self, delegate ):
""" Invokes the pop-up editor for an object trait.
"""
pass
#-------------------------------------------------------------------------------
# 'TextEditor' class:
#-------------------------------------------------------------------------------
class TextEditor ( Editor ):
#---------------------------------------------------------------------------
# Finishes initializing the editor by creating the underlying toolkit
# widget:
#---------------------------------------------------------------------------
def init ( self, parent ):
""" Finishes initializing the editor by creating the underlying toolkit
widget.
"""
var = tk.StringVar()
update_object = TkDelegate( self.update_object, var = var )
self.control = control = tk.Entry( parent, textvariable = var )
control.bind( '<Return>', update_object )
control.bind( '<FocusOut>', update_object )
#---------------------------------------------------------------------------
# Handles the user changing the contents of the edit control:
#---------------------------------------------------------------------------
def update_object ( self, event ):
""" Handles the user changing the contents of the edit control.
"""
try:
self.value = self.control.cget( 'textvariable' ).get()
except TraitError, excp:
pass
#-------------------------------------------------------------------------------
# 'ReadonlyEditor' class:
#-------------------------------------------------------------------------------
class ReadonlyEditor ( Editor ):
#---------------------------------------------------------------------------
# Finishes initializing the editor by creating the underlying toolkit
# widget:
#---------------------------------------------------------------------------
def init ( self, parent ):
""" Finishes initializing the editor by creating the underlying toolkit
widget.
"""
self.control = tk.Label( parent, textvariable = tk.StringVar() )
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