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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>
#------------------------------------------------------------------------------
""" The abstract base-class for all Pyface dialogs. """
# Standard library imports.
import logging
# Major package imports.
import wx
# Enthought library imports.
from enthought.traits.api import Bool, Enum, Int, Str
# Local imports.
from constant import OK, CANCEL, YES, NO
from window import Window
# Create a logger for this module.
logger = logging.getLogger(__name__)
class Dialog(Window):
""" The abstract base-class for all Pyface dialogs.
Usage: Sub-class this class and either override '_create_contents' or
more simply, just override the two methods that do the real work:-
1) '_create_dialog_area' creates the main content of the dialog.
2) '_create_buttons' creates the dialog buttons.
"""
RESULT_MAP = {
wx.ID_OK : OK,
wx.ID_CANCEL : CANCEL,
wx.ID_YES : YES,
wx.ID_NO : NO,
wx.ID_CLOSE : CANCEL,
# fixme: There seems to be a bug in wx.SingleChoiceDialog that allows
# it to return 0 when it is closed via the window (closing it via the
# buttons works just fine).
0 : CANCEL
}
# Default dialog style.
STYLE = wx.DEFAULT_DIALOG_STYLE | wx.CLIP_CHILDREN
#### 'Window' interface ###################################################
# The dialog title.
title = Str('Dialog')
#### 'Dialog' interface ###################################################
# The context sensitive help Id (the 'Help' button is only shown iff this
# is set).
help_id = Str
# Is the dialog resizeable?
resizeable = Bool(True)
# The dialog style (is is modal or not!).
style = Enum('modal', 'nonmodal')
# The size of the border around the dialog area.
dialog_area_border = Int(5)
# Label for the 'ok' button
ok_button_label = Str('OK')
# Label for the 'cancel' button
cancel_button_label = Str('Cancel')
# Label for the 'help' button
help_button_label = Str('Help')
###########################################################################
# 'Window' interface.
###########################################################################
def open(self):
""" Opens the window. """
if self.control is None:
self._create()
if self.style == 'modal':
result = self.control.ShowModal()
self.close()
# Map the result from wx terms into Pyface terms.
self.return_code = self.RESULT_MAP[result]
else:
self.control.Show(True)
self.return_code = OK
else:
logger.debug('dialog is already open %s' % str(self))
return self.return_code
###########################################################################
# Protected 'Window' interface.
###########################################################################
def _add_event_listeners(self, control):
""" Adds any event listeners required by the window. """
# For dialogs we don't need to catch any wx events.
pass
def _create_control(self, parent):
""" Create the toolkit-specific control that represents the window. """
style = self.STYLE
if self.resizeable:
style = style | wx.RESIZE_BORDER
return wx.Dialog(parent, -1, self.title, style=style)
def _create_contents(self, parent):
""" Creates the window contents.
Sub-classes can either override this method completely, or instead
override the two methods that do the real work:-
1) '_create_dialog_area' creates the main content of the dialog.
2) '_create_buttons' creates the dialog buttons.
"""
dialog = parent
sizer = wx.BoxSizer(wx.VERTICAL)
dialog.SetSizer(sizer)
dialog.SetAutoLayout(True)
# The 'guts' of the dialog.
dialog_area = self._create_dialog_area(dialog)
sizer.Add(dialog_area, 1, wx.EXPAND | wx.ALL, self.dialog_area_border)
# The buttons.
buttons = self._create_buttons(dialog)
sizer.Add(buttons, 0, wx.ALIGN_RIGHT | wx.ALL, 5)
# Resize the dialog to match the sizer's minimal size.
if self.size != (-1,-1):
dialog.SetSize(self.size)
else:
sizer.Fit(dialog)
dialog.CentreOnParent()
return dialog
###########################################################################
# Protected 'Dialog' interface.
###########################################################################
def _create_dialog_area(self, parent):
""" Creates the main content of the dialog. """
panel = wx.Panel(parent, -1)
panel.SetBackgroundColour("red")
panel.SetSize((100, 200))
return panel
def _create_buttons(self, parent):
""" Creates the buttons. """
sizer = wx.BoxSizer(wx.HORIZONTAL)
# 'OK' button.
self._ok = ok = wx.Button(parent, wx.ID_OK, self.ok_button_label)
ok.SetDefault()
wx.EVT_BUTTON(parent, wx.ID_OK, self._on_ok)
sizer.Add(ok)
# 'Cancel' button.
self._cancel = cancel = wx.Button(parent, wx.ID_CANCEL,
self.cancel_button_label)
wx.EVT_BUTTON(parent, wx.ID_CANCEL, self._on_cancel)
sizer.Add(cancel, 0, wx.LEFT, 10)
# 'Help' button.
if len(self.help_id) > 0:
help = wx.Button(parent, wx.ID_HELP, self.help_button_label)
wx.EVT_BUTTON(parent, wx.ID_HELP, self._on_help)
sizer.Add(help, 0, wx.LEFT, 10)
return sizer
###########################################################################
# 'Private' interface.
###########################################################################
#### wx event handlers ####################################################
def _on_ok(self, event):
""" Called when the 'OK' button is pressed. """
self.return_code = OK
# Let the default handler close the dialog appropriately.
event.Skip()
return
def _on_cancel(self, event):
""" Called when the 'Cancel' button is pressed. """
self.return_code = CANCEL
# Let the default handler close the dialog appropriately.
event.Skip()
return
def _on_help(self, event):
""" Called when the 'Help' button is pressed. """
print 'Heeeeelllllllllllllpppppppppppppppppppp'
return
#### EOF ######################################################################
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