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#!/usr/bin/env python3
import sys
import os
from PyQt5 import QtGui, QtWidgets, uic
from PyQt5.QtCore import Qt, QEvent
from qtvcp.core import Info
from qtvcp import logger
LOG = logger.getLogger(__name__)
INFO = Info()
class VirtualKeyboard(QtWidgets.QWidget):
def __init__(self, parent=None):
super(VirtualKeyboard, self).__init__(parent)
# Load the widgets UI file:
self.filename = os.path.join(INFO.LIB_PATH,'widgets_ui', 'virtual_keyboard.ui')
try:
self.instance = uic.loadUi(self.filename, self)
except AttributeError as e:
LOG.critical(e)
self.NO_ORD_KEY_LIST = list()
self.NO_ORD_KEY_LIST.append(Qt.Key_Backspace)
self.NO_ORD_KEY_LIST.append(Qt.Key_Enter)
self.NO_ORD_KEY_LIST.append(Qt.Key_Escape)
self.NO_ORD_KEY_LIST.append(Qt.Key_Delete)
self.NO_ORD_KEY_LIST.append(Qt.Key_F1)
self.NO_ORD_KEY_LIST.append(Qt.Key_F2)
self.NO_ORD_KEY_LIST.append(Qt.Key_F3)
self.NO_ORD_KEY_LIST.append(Qt.Key_F4)
self.NO_ORD_KEY_LIST.append(Qt.Key_F5)
self.NO_ORD_KEY_LIST.append(Qt.Key_F6)
self.NO_ORD_KEY_LIST.append(Qt.Key_F7)
self.NO_ORD_KEY_LIST.append(Qt.Key_F8)
self.NO_ORD_KEY_LIST.append(Qt.Key_F9)
self.NO_ORD_KEY_LIST.append(Qt.Key_F10)
self.NO_ORD_KEY_LIST.append(Qt.Key_F11)
self.NO_ORD_KEY_LIST.append(Qt.Key_F12)
self.letter_list = "abcdefghijklmnopqrstuvwxyz"
self.number_list = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'minus', 'equal']
self.shift_number = [')', '!', '@', '#', '$', '%', '^', '&&', '*', '(']
self.special_list = {
'less': Qt.Key_Less,
'greater': Qt.Key_Greater,
'question': Qt.Key_Question,
'colon': Qt.Key_Colon,
'leftbrace': Qt.Key_BraceLeft,
'rightbrace': Qt.Key_BraceRight,
'doublequote': Qt.Key_QuoteDbl,
'pipe': Qt.Key_Bar,
'underscore': Qt.Key_Underscore,
'plus': Qt.Key_Plus,
'exclamation': Qt.Key_Exclam,
'at': Qt.Key_At,
'pound': Qt.Key_NumberSign,
'dollar': Qt.Key_Dollar,
'percent': Qt.Key_Percent,
'carat': Qt.Key_AsciiCircum,
'ampersand': Qt.Key_Ampersand,
'asterisk': Qt.Key_Asterisk,
'leftparenth': Qt.Key_ParenLeft,
'rightparenth': Qt.Key_ParenRight,
'space': Qt.Key_Space
}
self.function_keys = {
'0': Qt.Key_F10,
'1': Qt.Key_F1,
'2': Qt.Key_F2,
'3': Qt.Key_F3,
'4': Qt.Key_F4,
'5': Qt.Key_F5,
'6': Qt.Key_F6,
'7': Qt.Key_F7,
'8': Qt.Key_F8,
'9': Qt.Key_F9,
'minus': Qt.Key_F11,
'equal': Qt.Key_F12
}
self.init_letters()
self.init_numbers()
self.init_special()
# control button group
self.btn_back.KEY_CHAR = Qt.Key_Backspace
self.btn_delete.KEY_CHAR = Qt.Key_Delete
self.btn_enter.KEY_CHAR = Qt.Key_Enter
self.letters_buttonGroup.buttonClicked.connect(self.letter_clicked)
self.numbers_buttonGroup.buttonClicked.connect(self.special_clicked)
self.special_buttonGroup.buttonClicked.connect(self.special_clicked)
self.control_buttonGroup.buttonClicked.connect(self.button_clicked)
def init_letters(self):
for val in self.letter_list:
self['btn_' + val].setText(val)
self['btn_' + val].KEY_CHAR = ord(val)
def init_numbers(self):
for i, val in enumerate(self.number_list[:-2]):
self['btn_' + val].setText(self.shift_number[i] + '\n' + val)
self['btn_' + val].KEY_CHAR = ord(val)
self.btn_minus.setText('_\n-')
self.btn_minus.KEY_CHAR = Qt.Key_Minus
self.btn_equal.setText('+\n=')
self.btn_equal.KEY_CHAR = Qt.Key_Equal
def init_special(self):
self.btn_comma.KEY_CHAR = Qt.Key_Comma
self.btn_period.KEY_CHAR = Qt.Key_Period
self.btn_semicolon.KEY_CHAR = Qt.Key_Semicolon
self.btn_slash.KEY_CHAR = Qt.Key_Slash
self.btn_backslash.KEY_CHAR = Qt.Key_Backslash
self.btn_apostrophe.KEY_CHAR = Qt.Key_Apostrophe
self.btn_left_bracket.KEY_CHAR = Qt.Key_BracketLeft
self.btn_right_bracket.KEY_CHAR = Qt.Key_BracketRight
self.btn_space.KEY_CHAR = Qt.Key_Space
def letter_clicked(self, btn):
if self.btn_shift.isChecked():
btn.KEY_CHAR = ord(btn.text().upper())
self.button_clicked(btn)
btn.KEY_CHAR = ord(btn.text())
def special_clicked(self, btn):
key_save = btn.KEY_CHAR
if self.btn_shift.isChecked() and not self.btn_function.isChecked():
key = btn.property('upper')
btn.KEY_CHAR = self.special_list.get(key)
self.button_clicked(btn)
btn.KEY_CHAR = key_save
def button_clicked(self, btn):
fw = QtWidgets.QApplication.focusWidget()
if fw is None: return
if btn.KEY_CHAR in self.NO_ORD_KEY_LIST:
keyPress = QtGui.QKeyEvent(QEvent.KeyPress, btn.KEY_CHAR, Qt.NoModifier, '')
else:
if self.btn_shift.isChecked():
modifier = Qt.ShiftModifier
self.btn_shift.setChecked(False)
else:
modifier = Qt.NoModifier
keyPress = QtGui.QKeyEvent(QEvent.KeyPress, btn.KEY_CHAR, modifier, chr(btn.KEY_CHAR))
try:
QtWidgets.QApplication.sendEvent(fw, keyPress)
except:
pass
def caps_lock_clicked(self, state):
if state:
for val in self.letter_list:
self['btn_' + val].setText(val.upper())
self['btn_' + val].KEY_CHAR = ord(val.upper())
else:
self.init_letters()
def function_clicked(self, state):
if state:
for val in self.number_list:
alt_txt = self['btn_' + val].property('fcode')
self['btn_' + val].setText(alt_txt)
for key, val in list(self.function_keys.items()):
self['btn_' + key].KEY_CHAR = val
else:
self.init_numbers()
def __getitem__(self, item):
return getattr(self, item)
def __setitem__(self, item, value):
return setattr(self, item, value)
#############################
# Testing #
#############################
if __name__ == "__main__":
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
app = QtWidgets.QApplication(sys.argv)
w = VirtualKeyboard()
w.show()
sys.exit( app.exec_() )
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