#

# keyviewer.py

#

# Copyright (c) 2005 Nokia Corporation

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#     http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#

import appuifw

import graphics

import e32

keyboard_state={}

last_keycode=0

def draw_state():

    canvas.clear()

    canvas.text((0,12),u'Scancodes of pressed keys:',0x008000)

    canvas.text((0,24),u' '.join([unicode(k) for k in keyboard_state if keyboard_state[k]]))

    canvas.text((0,36),u' '.join([unicode(hex(k)) for k in keyboard_state if keyboard_state[k]]))

    canvas.text((0,48),u'Last received keycode:', 0x008000)    

    canvas.text((0,60),u'%s (0x%x)'%(last_keycode,last_keycode))

def callback(event):

    global last_keycode

    if event['type'] == appuifw.EEventKeyDown:

        keyboard_state[event['scancode']]=1

    elif event['type'] == appuifw.EEventKeyUp:

        keyboard_state[event['scancode']]=0

    elif event['type'] == appuifw.EEventKey:

        last_keycode=event['keycode']

    draw_state()

canvas=appuifw.Canvas(event_callback=callback,

                      redraw_callback=lambda rect:draw_state())

appuifw.app.body=canvas

lock=e32.Ao_lock()

appuifw.app.exit_key_handler=lock.signal

lock.wait()