/usr/share/pyshared/libavg/ui/keyboard.py is in python-libavg 1.7.1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 | #!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# libavg - Media Playback Engine.
# Copyright (C) 2003-2011 Ulrich von Zadow
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Current versions can be found at www.libavg.de
#
# Original author of this module: Thomas Schott <scotty at c-base dot org>
#
import os.path
from libavg import avg
g_Player = avg.Player.get()
g_Logger = avg.Logger.get()
class Key(avg.ImageNode):
def __init__(self, keyDef, ovlHref, onDownCallback, onUpCallback,
onOutCallback=lambda event, keyCode:None, sticky=False, *args, **kwargs):
kwargs['pos'] = keyDef[1]
kwargs['size'] = keyDef[2]
kwargs['opacity'] = 0.0
super(Key, self).__init__(*args, **kwargs)
if ovlHref:
self.__createImage(ovlHref)
self.__keyCode = keyDef[0]
self.__onDownCallback = onDownCallback
self.__onUpCallback = onUpCallback
self.__onOutCallback = onOutCallback
self.__sticky = sticky
if self.__sticky:
self.__stickyIsDown = False
self.__cursorID = None
self.setEventHandler(avg.CURSORDOWN, avg.MOUSE | avg.TOUCH, self.__onDown)
self.setEventHandler(avg.CURSORUP, avg.MOUSE | avg.TOUCH, self.__onUp)
self.setEventHandler(avg.CURSOROUT, avg.MOUSE | avg.TOUCH, self.__onOut)
def reset(self):
if self.__sticky:
self.opacity = 0.0
self.__stickyIsDown = False
def __createImage(self, ovlHref):
if os.path.isabs(ovlHref):
effectiveHref = ovlHref
else:
effectiveHref = self.getParent().getEffectiveMediaDir() + ovlHref
canvas = g_Player.loadCanvasString(
'''
<canvas id="offscreen" size="%s">
<image href="%s" pos="%s"/>
</canvas>
'''
%(str(self.size),
effectiveHref,
str(-self.pos)))
canvas.render()
self.setBitmap(canvas.screenshot())
g_Player.deleteCanvas('offscreen')
def __onDown(self, event):
if self.__sticky:
self.__stickyIsDown = not(self.__stickyIsDown)
if self.__stickyIsDown:
self.__pseudoDown(event)
else:
self.__pseudoUp(event)
else:
if self.__cursorID:
return
self.__pseudoDown(event)
def __onUp(self, event):
if not self.__cursorID == event.cursorid:
return
if not (self.__sticky):
self.__pseudoUp(event)
def __onOut(self, event):
if not self.__cursorID == event.cursorid:
return
if not(self.__sticky):
self.__cursorID = None
self.opacity = 0.0
self.__onOutCallback(event, self.__keyCode)
def __pseudoDown(self, event):
self.__cursorID = event.cursorid
self.opacity = 1.0
if self.__onDownCallback:
self.__onDownCallback(event, self.__keyCode)
def __pseudoUp(self, event):
self.__cursorID = None
self.opacity = 0.0
if self.__onUpCallback:
self.__onUpCallback(event, self.__keyCode)
class Keyboard(avg.DivNode):
def __init__(self, bgHref, ovlHref, keyDefs, shiftKeyCode, altGrKeyCode=None,
stickyShift=False, *args, **kwargs):
# TODO: shift and altGr handling have some duplicated code.
super(Keyboard, self).__init__(*args, **kwargs)
self.__shiftKeyCode = shiftKeyCode
self.__shiftDownCounter = 0
self.__stickyShift = stickyShift
self.__altGrKeyCode = altGrKeyCode
self.__altGrKeyCounter = 0
if not(self.__shiftKeyCode) and self.__altGrKeyCode:
raise RuntimeError(
"Keyboard: If there is an altgr key, there must also be a shift key.")
self.__codesPerKey = 1
if self.__shiftKeyCode:
self.__codesPerKey = 2
if self.__altGrKeyCode:
self.__codesPerKey = 3
self.__downKeyHandler = None
self.__upKeyHandler = None
self.__keys = []
if bgHref:
avg.ImageNode(href=bgHref, parent=self)
for kd in keyDefs:
if isinstance(kd[0], tuple):
while len(kd[0]) < self.__codesPerKey:
kd[0] += (kd[0][0],)
key = Key(kd, ovlHref, self.__onCharKeyDown, self.__onCharKeyUp,
parent=self)
else:
sticky =(self.__stickyShift and
(self.__shiftKeyCode == kd[0] or self.__altGrKeyCode == kd[0]))
key = Key(kd, ovlHref, self.__onCommandKeyDown, self.__onCommandKeyUp,
self.__onCommandKeyUp, sticky=sticky, parent=self)
self.__keys.append(key)
@classmethod
def makeRowKeyDefs(cls, startPos, keySize, spacing, keyStr, shiftKeyStr,
altGrKeyStr=None):
keyDefs = []
curPos = startPos
offset = keySize[0]+spacing
if altGrKeyStr:
for keyCode, shiftKeyCode, altGrKeyCode in (
zip(keyStr, shiftKeyStr, altGrKeyStr)):
keyDefs.append([(keyCode, shiftKeyCode, altGrKeyCode), curPos, keySize])
curPos = (curPos[0]+offset, curPos[1])
else:
for keyCode, shiftKeyCode in zip(keyStr, shiftKeyStr):
keyDefs.append([(keyCode, shiftKeyCode), curPos, keySize])
curPos = (curPos[0]+offset, curPos[1])
return keyDefs
def setKeyHandler(self, downHandler, upHandler=None):
self.__downKeyHandler = downHandler
self.__upKeyHandler = upHandler
def reset(self):
for key in self.__keys:
key.reset()
self.__shiftDownCounter = 0
self.__altGrKeyCounter = 0
def _getCharKeyCode(self, keyCodes):
'''
Return one of a character key's keycodes depending on shift key(s) status.
Overload this method to change character key keycode handling.
'''
if self.__shiftDownCounter:
return keyCodes[1]
elif self.__altGrKeyCounter:
return keyCodes[2]
else:
return keyCodes[0]
def _onCommandKeyDown(self, event, keyCode):
'''
Overload this method to add command key functionality.
'''
pass
def _onCommandKeyUp(self, event, keyCode):
'''
Overload this method to add command key functionality.
'''
pass
def __onCharKeyDown(self, event, keyCodes):
if self.__downKeyHandler:
self.__downKeyHandler(event, self._getCharKeyCode(keyCodes), None)
def __onCharKeyUp(self, event, keyCodes):
if self.__upKeyHandler:
self.__upKeyHandler(event, self._getCharKeyCode(keyCodes), None)
def __onCommandKeyDown(self, event, keyCode):
self._onCommandKeyDown(event, keyCode)
if keyCode == self.__shiftKeyCode:
self.__shiftDownCounter += 1
if keyCode == self.__altGrKeyCode:
self.__altGrKeyCounter += 1
if self.__downKeyHandler:
self.__downKeyHandler(event, None, keyCode)
def __onCommandKeyUp(self, event, keyCode):
self._onCommandKeyUp(event, keyCode)
if keyCode == self.__shiftKeyCode:
if self.__shiftDownCounter > 0:
self.__shiftDownCounter -= 1
else:
g_Logger.trace(g_Logger.WARNING,
'Keyboard: ShiftDownCounter=0 on [%s] up'
%self.__shiftKeyCode)
elif keyCode == self.__altGrKeyCode:
if self.__altGrKeyCounter > 0:
self.__altGrKeyCounter -= 1
if self.__upKeyHandler:
self.__upKeyHandler(event, None, keyCode)
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