PySimpleGUI/DemoPrograms/Demo_Touch_Keyboard.py

100 lines
3.4 KiB
Python

import PySimpleGUI as sg
'''
Example of on-screen keyboard.
'''
class keyboard():
def __init__(self, location=(None, None), font=('Arial', 16)):
self.font = font
numberRow = '1234567890'
topRow = 'QWERTYUIOP'
midRow = 'ASDFGHJKL'
bottomRow = 'ZXCVBNM'
keyboard_layout = [[sg.Button(c, key=c, size=(4, 2), font=self.font) for c in numberRow] + [
sg.Button('', key='back', size=(4, 2), font=self.font),
sg.Button('Esc', key='close', size=(4, 2), font=self.font)],
[sg.Text(' ' * 4)] + [sg.Button(c, key=c, size=(4, 2), font=self.font) for c in
topRow] + [sg.Stretch()],
[sg.Text(' ' * 11)] + [sg.Button(c, key=c, size=(4, 2), font=self.font) for c in
midRow] + [sg.Stretch()],
[sg.Text(' ' * 18)] + [sg.Button(c, key=c, size=(4, 2), font=self.font) for c in
bottomRow] + [sg.Stretch()]]
self.window = sg.Window('keyboard', keyboard_layout,
grab_anywhere=True, keep_on_top=True, alpha_channel=0,
no_titlebar=True, element_padding=(0, 0), location=location, finalize=True)
self.hide()
def _keyboardhandler(self):
if self.event is not None:
if self.event == 'close':
self.hide()
elif len(self.event) == 1:
self.focus.update(self.focus.Get() + self.event)
elif self.event == 'back':
Text = self.focus.Get()
if len(Text) > 0:
Text = Text[:-1]
self.focus.update(Text)
def hide(self):
self.visible = False
self.window.Disappear()
def show(self):
self.visible = True
self.window.Reappear()
def togglevis(self):
if self.visible:
self.hide()
else:
self.show()
def update(self, focus):
self.event, _ = self.window.read(timeout=0)
if focus is not None:
self.focus = focus
self._keyboardhandler()
def close(self):
self.window.close()
class GUI():
def __init__(self):
layout = [[sg.Text('Enter Text')],
[sg.Input('', size=(17, 1), key='input1')],
[sg.InputText('', size=(17, 1), key='input2')],
[sg.Button('on-screen keyboard', key='keyboard')],
[sg.Button('close', key='close')]]
self.mainWindow = sg.Window('On-screen test', layout,
grab_anywhere=True, no_titlebar=False, finalize=True)
location = self.mainWindow.current_location()
location = location[0]-200, location[1]+200
self.keyboard = keyboard(location)
self.focus = None
def run(self):
while True:
cur_focus = self.mainWindow.find_element_with_focus()
if cur_focus is not None:
self.focus = cur_focus
event, values = self.mainWindow.read(
timeout=200, timeout_key='timeout')
if self.focus is not None:
self.keyboard.update(self.focus)
if event == 'keyboard':
self.keyboard.togglevis()
elif event == 'close' or event is None:
break
self.keyboard.close()
self.mainWindow.Close()
if __name__ == '__main__':
app = GUI()
app.run()