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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: Enthought, Inc.
# Description: <Enthought pyface package component>
#------------------------------------------------------------------------------
""" A dialog that prompts the user for confirmation. """
# Major package imports.
import wx
# Enthought library imports.
from enthought.traits.api import Bool, Enum, Instance, Str
# Local imports.
from constant import CANCEL, NO, YES
from dialog import Dialog
from image_resource import ImageResource
from image_widget import ImageWidget
def confirm(parent, message, title=None, cancel=False, default=NO):
""" Convenience function to show a confirmation dialog. """
if title is None:
title = "Confirmation"
dialog = ConfirmationDialog(
parent = parent,
message = message,
cancel = cancel,
default = default,
title = title
)
return dialog.open()
class ConfirmationDialog(Dialog):
""" A dialog that prompts the user for confirmation. """
DEFAULT_TO_STYLE_MAP = {
YES : wx.YES_DEFAULT,
NO : wx.NO_DEFAULT
}
#### 'Dialog' interface ###################################################
# Is the dialog resizeable?
resizeable = False
#### 'ConfirmationDialog' interface #######################################
# Should the cancel button be displayed?
cancel = Bool(False)
# The default button.
default = Enum(NO, YES, CANCEL)
# The image displayed to the left of the message.
image = Instance(ImageResource, ImageResource('warning.png'))
# The message displayed in the body of the dialog (use the inherited
# 'title' trait to set the title of the dialog itself).
message = Str
# Button labels.
yes_label = Str('Yes')
no_label = Str('No')
cancel_label = Str('Cancel')
###########################################################################
# Protected 'Dialog' interface.
###########################################################################
def _create_dialog_area(self, parent):
""" Creates the main content of the dialog. """
panel = wx.Panel(parent, -1)
sizer = wx.BoxSizer(wx.HORIZONTAL)
panel.SetSizer(sizer)
panel.SetAutoLayout(True)
# The image.
image = ImageWidget(panel, bitmap=self.image.create_bitmap())
sizer.Add(image.control, 0, wx.EXPAND)
# The message.
message = wx.StaticText(panel, -1, self.message)
sizer.Add(message, 1, wx.EXPAND | wx.TOP, 15)
# Resize the panel to match the sizer.
sizer.Fit(panel)
return panel
def _create_buttons(self, parent):
""" Creates the buttons. """
sizer = wx.BoxSizer(wx.HORIZONTAL)
# 'YES' button.
self._yes = yes = wx.Button(parent, wx.ID_YES, self.yes_label)
if self.default == YES:
yes.SetDefault()
wx.EVT_BUTTON(parent, wx.ID_YES, self._on_yes)
sizer.Add(yes)
# 'NO' button.
self._no = no = wx.Button(parent, wx.ID_NO, self.no_label)
if self.default == NO:
no.SetDefault()
wx.EVT_BUTTON(parent, wx.ID_NO, self._on_no)
sizer.Add(no, 0, wx.LEFT, 10)
if self.cancel:
# 'Cancel' button.
self._cancel = cancel = wx.Button(
parent, wx.ID_CANCEL, self.cancel_label
)
if self.default == CANCEL:
cancel.SetDefault()
wx.EVT_BUTTON(parent, wx.ID_CANCEL, self._on_cancel)
sizer.Add(cancel, 0, wx.LEFT, 10)
return sizer
###########################################################################
# 'Private' interface.
###########################################################################
#### wx event handlers ####################################################
def _on_yes(self, event):
""" Called when the 'Yes' button is pressed. """
self.control.EndModal(wx.ID_YES)
return
def _on_no(self, event):
""" Called when the 'No' button is pressed. """
self.control.EndModal(wx.ID_NO)
return
#### EOF ######################################################################
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