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#------------------------------------------------------------------------------
# Copyright (c) 2017-19, 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 Qt-specific implementation of the text field class """
from __future__ import (
absolute_import, division, print_function, unicode_literals
)
from traits.api import Trait, provides
from pyface.fields.i_text_field import ITextField, MTextField
from pyface.qt.QtGui import QLineEdit
from .field import Field
ECHO_TO_QT_ECHO_MODE = {
'normal': QLineEdit.Normal,
'password': QLineEdit.Password,
'none': QLineEdit.NoEcho,
'when_editing': QLineEdit.PasswordEchoOnEdit,
}
QT_ECHO_MODE_TO_ECHO = {
value: key for key, value in ECHO_TO_QT_ECHO_MODE.items()
}
# mapped trait for Qt line edit echo modes
Echo = Trait(
'normal',
ECHO_TO_QT_ECHO_MODE,
)
@provides(ITextField)
class TextField(MTextField, Field):
""" The Qt-specific implementation of the text field class """
#: Display typed text, or one of several hidden "password" modes.
echo = Echo
# ------------------------------------------------------------------------
# IWidget interface
# ------------------------------------------------------------------------
def _create_control(self, parent):
""" Create the toolkit-specific control that represents the widget. """
control = QLineEdit(parent)
return control
# ------------------------------------------------------------------------
# Private interface
# ------------------------------------------------------------------------
def _get_control_value(self):
""" Toolkit specific method to get the control's value. """
return self.control.text()
def _set_control_value(self, value):
""" Toolkit specific method to set the control's value. """
self.control.setText(value)
# fire update
if self.update_text == 'editing_finished':
self.control.editingFinished.emit()
else:
self.control.textEdited.emit(value)
def _observe_control_value(self, remove=False):
""" Toolkit specific method to change the control value observer. """
if remove:
self.control.textEdited.disconnect(self._update_value)
else:
self.control.textEdited.connect(self._update_value)
def _get_control_placeholder(self):
""" Toolkit specific method to set the control's placeholder. """
return self.control.placeholderText()
def _set_control_placeholder(self, placeholder):
""" Toolkit specific method to set the control's placeholder. """
self.control.setPlaceholderText(placeholder)
def _get_control_echo(self):
""" Toolkit specific method to get the control's echo. """
return QT_ECHO_MODE_TO_ECHO[self.control.echoMode()]
def _set_control_echo(self, echo):
""" Toolkit specific method to set the control's echo. """
self.control.setEchoMode(ECHO_TO_QT_ECHO_MODE[echo])
def _get_control_read_only(self):
""" Toolkit specific method to get the control's read_only state. """
return self.control.isReadOnly()
def _set_control_read_only(self, read_only):
""" Toolkit specific method to set the control's read_only state. """
self.control.setReadOnly(read_only)
def _observe_control_editing_finished(self, remove=False):
""" Change observation of whether editing is finished. """
if remove:
self.control.editingFinished.disconnect(self._editing_finished)
else:
self.control.editingFinished.connect(self._editing_finished)
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