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#-------------------------------------------------------------------------------
#
# Copyright (c) 2007, 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: 06/26/2007
#
#-------------------------------------------------------------------------------
""" Traits UI themed button editor.
"""
#-------------------------------------------------------------------------------
# Imports:
#-------------------------------------------------------------------------------
import wx
from traits.api \
import Instance, Str, on_trait_change
from traitsui.api \
import Theme
from traitsui.ui_traits \
import ATheme, AView, Image, Position, Spacing
from traitsui.wx.editor \
import Editor
from traitsui.basic_editor_factory \
import BasicEditorFactory
from themed_control \
import ThemedControl
#-------------------------------------------------------------------------------
# '_ThemedButtonEditor' class:
#-------------------------------------------------------------------------------
class _ThemedButtonEditor ( Editor ):
""" Traits UI themed button editor.
"""
# The ThemedControl used for the button:
button = Instance( ThemedControl )
#---------------------------------------------------------------------------
# Finishes initializing the editor by creating the underlying toolkit
# widget:
#---------------------------------------------------------------------------
def init ( self, parent ):
""" Finishes initializing the editor by creating the underlying toolkit
widget.
"""
# Create the button and its control:
factory = self.factory
label = factory.label
if (label == '') and (factory.image is None):
label = self.item.get_label( self.ui )
label = self.string_value( label )
self.button = button = ThemedControl( **factory.get(
'theme', 'image', 'position', 'spacing' ) ).set(
text = label,
controller = self,
default_alignment = 'center',
min_size = ( 80, 0 ) )
self.control = button.create_control( parent )
# Set the tooltip:
self.set_tooltip()
#---------------------------------------------------------------------------
# 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.
"""
pass
#-- Trait Event Handlers ---------------------------------------------------
@on_trait_change( 'button.enabled' )
def _on_enabled_changed ( self ):
""" Handles the button 'enabled' state changing.
"""
if self.button.enabled:
self.button.set( state = 'normal',
offset = ( 0, 0 ),
theme = self.factory.theme )
else:
self.button.set( state = 'disabled',
offset = ( 0, 0 ),
theme = self.factory.disabled_theme or
self.factory.theme )
#-- ThemedControl Event Handlers -------------------------------------------
def normal_left_down ( self, x, y, event ):
if self.control.IsEnabled():
self.button.set( state = 'down',
offset = ( 1, 1 ),
theme = self.factory.down_theme or
self.factory.theme )
def normal_motion ( self, x, y, event ):
hover = self.factory.hover_theme
if self.control.IsEnabled() and (hover is not None):
self.button.set( state = 'hover', theme = hover )
self.control.CaptureMouse()
def hover_left_down ( self, x, y, event ):
self.control.ReleaseMouse()
self.normal_left_down( x, y, event )
def hover_motion ( self, x, y, event ):
if not self.button.in_control( x, y ):
self.control.ReleaseMouse()
self.button.set( state = 'normal', theme = self.factory.theme )
def down_left_up ( self, x, y, event ):
if self.button.in_control( x, y ):
self.value = True
# If there is an associated view, display it:
if self.factory.view is not None:
self.object.edit_traits( view = self.factory.view,
parent = self.control )
self.button.set( state = 'normal',
offset = ( 0, 0 ),
theme = self.factory.theme )
def down_motion ( self, x, y, event ):
theme = self.factory.down_theme or self.factory.theme
is_in = self.button.in_control( x, y )
if not is_in:
theme = self.factory.theme
self.button.set( offset = ( is_in, is_in ), theme = theme )
#-------------------------------------------------------------------------------
# Create the editor factory object:
#-------------------------------------------------------------------------------
# wxPython editor factory for themed button editors:
class ThemedButtonEditor ( BasicEditorFactory ):
# The editor class to be created:
klass = _ThemedButtonEditor
# The button label:
label = Str
# The basic theme for the button (i.e. the 'up' state):
theme = ATheme( '@std:BG5' )
# The optional 'down' state theme for the button:
down_theme = ATheme( '@std:BE5' )
# The optional 'hover' state theme for the button:
hover_theme = ATheme( '@std:BG6' )
# The optional 'disabled' state theme for the button:
disabled_theme = ATheme( '@std:GG3' )
# The optional image to display in the button:
image = Image
# The position of the image relative to the text:
position = Position
# The amount of space between the image and the text:
spacing = Spacing
# The optional view to display when the button is clicked:
view = AView
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