src/extras/keyviewer.py
author Vijayan <ts.vijayan@nokia.com>
Tue, 16 Feb 2010 10:07:05 +0530
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#
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# keyviewer.py
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#
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# Copyright (c) 2005 Nokia Corporation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#     http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import appuifw
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import graphics
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import e32
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keyboard_state={}
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last_keycode=0
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def draw_state():
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    canvas.clear()
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    canvas.text((0,12),u'Scancodes of pressed keys:',0x008000)
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    canvas.text((0,24),u' '.join([unicode(k) for k in keyboard_state if keyboard_state[k]]))
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    canvas.text((0,36),u' '.join([unicode(hex(k)) for k in keyboard_state if keyboard_state[k]]))
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    canvas.text((0,48),u'Last received keycode:', 0x008000)    
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    canvas.text((0,60),u'%s (0x%x)'%(last_keycode,last_keycode))
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def callback(event):
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    global last_keycode
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    if event['type'] == appuifw.EEventKeyDown:
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        keyboard_state[event['scancode']]=1
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    elif event['type'] == appuifw.EEventKeyUp:
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        keyboard_state[event['scancode']]=0
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    elif event['type'] == appuifw.EEventKey:
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        last_keycode=event['keycode']
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    draw_state()
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canvas=appuifw.Canvas(event_callback=callback,
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                      redraw_callback=lambda rect:draw_state())
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appuifw.app.body=canvas
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lock=e32.Ao_lock()
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appuifw.app.exit_key_handler=lock.signal
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lock.wait()