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Viewing changes to traitsui/qt4/image_editor.py

  • Committer: Bazaar Package Importer
  • Author(s): Varun Hiremath
  • Date: 2011-07-09 13:57:39 UTC
  • Revision ID: james.westby@ubuntu.com-20110709135739-x5u20q86huissmn1
Tags: upstream-4.0.0
Import upstream version 4.0.0

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traitsui/qt4/image_editor.py
 
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#-------------------------------------------------------------------------------
 
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#
 
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#  Copyright (c) 2009, Enthought, Inc.
 
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#  All rights reserved.
 
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#
 
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#  This software is provided without warranty under the terms of the BSD
 
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#  license included in enthought/LICENSE.txt and may be redistributed only
 
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#  under the conditions described in the aforementioned license.  The license
 
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#  is also available online at http://www.enthought.com/licenses/BSD.txt
 
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#
 
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#  Thanks for using Enthought open source!
 
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#
 
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#  Author: Evan Patterson
 
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#  Date:   07/21/2009
 
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#
 
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#-------------------------------------------------------------------------------
 
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""" Traits UI 'display only' image editor.
 
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"""
 
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#-------------------------------------------------------------------------------
 
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#  Imports:
 
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#-------------------------------------------------------------------------------
 
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from pyface.qt import QtGui
 
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from pyface.image_resource \
 
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    import ImageResource
 
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from traitsui.ui_traits \
 
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    import convert_bitmap
 
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# FIXME: ImageEditor is a proxy class defined here just for backward
 
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# compatibility. The class has been moved to the
 
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# traitsui.editors.image_editor file.
 
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from traitsui.editors.image_editor \
 
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    import ImageEditor
 
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from editor \
 
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    import Editor
 
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#-------------------------------------------------------------------------------
 
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#  '_ImageEditor' class:
 
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#-------------------------------------------------------------------------------
 
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class _ImageEditor ( Editor ):
 
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    """ Traits UI 'display only' image editor.
 
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    """
 
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    #---------------------------------------------------------------------------
 
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    #  Finishes initializing the editor by creating the underlying toolkit
 
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    #  widget:
 
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    #---------------------------------------------------------------------------
 
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    def init ( self, parent ):
 
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        """ Finishes initializing the editor by creating the underlying toolkit
 
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            widget.
 
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        """
 
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        image = self.factory.image
 
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        if image is None:
 
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            image = self.value
 
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        self.control = QtGui.QLabel()
 
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        self.control.setPixmap( convert_bitmap( image ) )
 
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        self.set_tooltip()
 
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    #---------------------------------------------------------------------------
 
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    #  Updates the editor when the object trait changes external to the editor:
 
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    #---------------------------------------------------------------------------
 
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    def update_editor ( self ):
 
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        """ Updates the editor when the object trait changes externally to the
 
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            editor.
 
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        """
 
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        if self.factory.image is None:
 
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            value = self.value
 
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            if isinstance( value, ImageResource ):
 
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                self.control.setPixmap( convert_bitmap( value ) )