/usr/lib/python2.7/dist-packages/traitsui/wx/image_enum_editor.py is in python-traitsui 4.4.0-1.3.
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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: 10/21/2004
#
#------------------------------------------------------------------------------
""" Defines the various image enumeration editors for the wxPython user interface toolkit.
"""
#-------------------------------------------------------------------------------
# Imports:
#-------------------------------------------------------------------------------
import wx
from traits.api \
import Any
# FIXME: ToolkitEditorFactory is a proxy class defined here just for backward
# compatibility. The class has been moved to the
# traitsui.editors.image_enum_editor file.
from traitsui.editors.image_enum_editor \
import ToolkitEditorFactory
from editor \
import Editor
from helper \
import bitmap_cache, position_window, TraitsUIPanel
from constants \
import WindowColor
from image_control \
import ImageControl
#-------------------------------------------------------------------------------
# 'ReadonlyEditor' class:
#-------------------------------------------------------------------------------
class ReadonlyEditor ( Editor ):
""" Read-only style of image enumeration editor, which displays a single
ImageControl, representing the object trait's value.
"""
#---------------------------------------------------------------------------
# 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 = ImageControl( parent, bitmap_cache( '%s%s%s' %
( self.factory.prefix, self.str_value, self.factory.suffix ),
False, self.factory._image_path ) )
#---------------------------------------------------------------------------
# Updates the editor when the object trait changes external to the editor:
#---------------------------------------------------------------------------
def update_editor ( self ):
""" Updates the editor when the object trait changes externally to the
editor.
"""
self.control.Bitmap( bitmap_cache( '%s%s%s' %
( self.factory.prefix, self.str_value, self.factory.suffix ),
False, self.factory._image_path ) )
#-------------------------------------------------------------------------------
# 'SimpleEditor' class:
#-------------------------------------------------------------------------------
class SimpleEditor ( ReadonlyEditor ):
""" Simple style of image enumeration editor, which displays an
ImageControl, representing the object trait's value. Clicking an image
displays a dialog box for selecting an image corresponding to a different
value.
"""
#---------------------------------------------------------------------------
# Finishes initializing the editor by creating the underlying toolkit
# widget:
#---------------------------------------------------------------------------
def init ( self, parent ):
""" Finishes initializing the editor by creating the underlying toolkit
widget.
"""
super( SimpleEditor, self ).init( parent )
self.control.Selected( True )
self.control.Handler( self.popup_editor )
self.set_tooltip()
#---------------------------------------------------------------------------
# Handles the user clicking the ImageControl to display the pop-up dialog:
#---------------------------------------------------------------------------
def popup_editor ( self, control ):
""" Handles the user clicking the ImageControl to display the pop-up
dialog.
"""
ImageEnumDialog( self )
#-------------------------------------------------------------------------------
# 'CustomEditor' class:
#-------------------------------------------------------------------------------
class CustomEditor ( Editor ):
""" Custom style of image enumeration editor, which displays a grid of
ImageControls. The user can click an image to select the corresponding
value.
"""
#---------------------------------------------------------------------------
# Trait definitions:
#---------------------------------------------------------------------------
update_handler = Any # Callback to call when any button clicked
#---------------------------------------------------------------------------
# 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._create_image_grid( parent )
#---------------------------------------------------------------------------
# Populates a specified window with a grid of image buttons:
#---------------------------------------------------------------------------
def _create_image_grid ( self, parent ):
""" Populates a specified window with a grid of image buttons.
"""
# Create the panel to hold the ImageControl buttons:
self.control = panel = TraitsUIPanel( parent, -1 )
# Create the main sizer:
if self.factory.cols > 1:
sizer = wx.GridSizer( 0, self.factory.cols, 0, 0 )
else:
sizer = wx.BoxSizer( wx.VERTICAL )
# Add the set of all possible choices:
factory = self.factory
mapping = factory._mapping
cur_value = self.value
for name in self.factory._names:
value = mapping[ name ]
control = ImageControl( panel,
bitmap_cache( '%s%s%s' % ( factory.prefix, name,
factory.suffix ), False, factory._image_path ),
value == cur_value,
self.update_object )
control.value = value
sizer.Add( control, 0, wx.ALL, 2 )
self.set_tooltip( control )
# Finish setting up the control layout:
panel.SetSizerAndFit( sizer )
#---------------------------------------------------------------------------
# Handles the user clicking on an ImageControl to set an object value:
#---------------------------------------------------------------------------
def update_object ( self, control ):
""" Handles the user clicking on an ImageControl to set an object value.
"""
self.value = control.value
if self.update_handler is not None:
self.update_handler()
#---------------------------------------------------------------------------
# Updates the editor when the object trait changes external to the editor:
#---------------------------------------------------------------------------
def update_editor ( self ):
""" Updates the editor when the object trait changes externally to the
editor.
"""
value = self.value
for control in self.control.GetChildren():
control.Selected( value == control.value )
#-------------------------------------------------------------------------------
# 'ImageEnumDialog' class:
#-------------------------------------------------------------------------------
class ImageEnumDialog ( wx.Frame ):
""" Dialog box for selecting an ImageControl
"""
#---------------------------------------------------------------------------
# Initializes the object:
#---------------------------------------------------------------------------
def __init__ ( self, editor ):
""" Initializes the object.
"""
wx.Frame.__init__( self, editor.control, -1, '',
style = wx.SIMPLE_BORDER )
self.SetBackgroundColour( WindowColor )
wx.EVT_ACTIVATE( self, self._on_close_dialog )
self._closed = False
dlg_editor = CustomEditor( self,
factory = editor.factory,
ui = editor.ui,
object = editor.object,
name = editor.name,
description = editor.description,
update_handler = self._close_dialog )
dlg_editor.init( self )
# Wrap the dialog around the image button panel:
sizer = wx.BoxSizer( wx.VERTICAL )
sizer.Add( dlg_editor.control )
sizer.Fit( self )
# Position the dialog:
position_window( self, parent = editor.control )
self.Show()
#---------------------------------------------------------------------------
# Closes the dialog:
#---------------------------------------------------------------------------
def _on_close_dialog ( self, event ):
""" Closes the dialog.
"""
if not event.GetActive():
self._close_dialog()
#---------------------------------------------------------------------------
# Closes the dialog:
#---------------------------------------------------------------------------
def _close_dialog ( self ):
""" Closes the dialog.
"""
if not self._closed:
self._closed = True
self.Destroy()
### EOF #######################################################################
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