tests/wiimote/py_ext_0@py_ext/pyfile.xml
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Wed, 29 Aug 2018 18:53:02 +0300
changeset 2301 5b8a7dd43f9f
parent 1185 b36755d7c19e
permissions -rw-r--r--
Avoid usage of localized strings before initialization during import in many modules

This happens if import is done before i18n setup
(InstallLocalRessources()).
This affects PLCOpenEditor mostly. Beremiz IDE is free from this issue, but moving
initialization from import should make modules more robust.
Otherwise execution result depends on where and when import was done
and this is not a good thing.

Some modules (ConfigTreeNode, features, CodeFileEditor related
classes) still have this, but they are used only in Beremiz.
Most problems result in non-working internatialization.
In some cases (VariablePanel) there is backtrace, because localized
key is not found in non-localized dictionary.
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<PyFile>
  <variables>
    <variable name="WiiNunchuckStickX" type="INT"/>
    <variable name="WiiNunchuckStickY" type="INT"/>
    <variable name="WiiNunchuckAccX" type="INT"/>
    <variable name="WiiNunchuckAccY" type="INT"/>
    <variable name="WiiNunchuckAccZ" type="INT"/>
    <variable name="WiiNunchuckButtons" type="WORD"/>
    <variable name="WiiButtons" type="WORD"/>
  </variables>
  <globals>
<![CDATA[
import cwiid,commands,sys,re,os,time

wiimote = None
WIIMOTE_ADDR_MODEL = re.compile("((?:[0-9A-F]{2})(?::[0-9A-F]{2}){5})\s*Nintendo")
nunchuckzero = None

def Wiimote_cback(messages, time):
    global nunchuckzero
    state = dict(messages)
    bts = state.get(cwiid.MESG_BTN, None)
    if bts is not None:
        PLCGlobals.WiiButtons = bts
    nunchuck = state.get(cwiid.MESG_NUNCHUK, None)
    if nunchuck is not None:
        PLCGlobals.WiiNunchuckButtons = nunchuck['buttons']
        X,Y = nunchuck['stick']
        PLCGlobals.WiiNunchuckAccX = nunchuck['acc'][cwiid.X]
        PLCGlobals.WiiNunchuckAccY = nunchuck['acc'][cwiid.Y]
        PLCGlobals.WiiNunchuckAccZ = nunchuck['acc'][cwiid.Z]
        if nunchuckzero is None:
            nunchuckzero = X,Y
        (PLCGlobals.WiiNunchuckStickX,
         PLCGlobals.WiiNunchuckStickY) = X-nunchuckzero[0],Y-nunchuckzero[1]

def Connect_Wiimote(connected_callback):
    global wiimote,nunchuckzero
    mac_addr = ''
    try:
        mac_addr = file("wiimac.txt","rt").read()
    except:
        PLCObject.LogMessage("Wiimote MAC unknown, scanning bluetooth")
        output = commands.getoutput("hcitool scan")
        result = WIIMOTE_ADDR_MODEL.search(output)
        if result is not None:
            mac_addr = result.group(1)
            PLCObject.LogMessage("Found Wiimote with MAC %s"%mac_addr)
            file("wiimac.txt","wt").write(mac_addr)
 
    # Connect to wiimote
    if not mac_addr:
        PLCObject.LogMessage("Connection to unknown Wiimote...")
        wiimote = cwiid.Wiimote()
    else:
        PLCObject.LogMessage("Connection to Wiimote %s..."%mac_addr)
        wiimote = cwiid.Wiimote(mac_addr)

    if wiimote is not None:
        nunchuckzero = None
        wiimote.rpt_mode = cwiid.RPT_BTN | cwiid.RPT_EXT
        # use the callback interface
        wiimote.mesg_callback = Wiimote_cback
        wiimote.enable(cwiid.FLAG_MESG_IFC)
        connected_callback(mac_addr)
        PLCObject.LogMessage("Wiimote %s Connected"%mac_addr)
    else:
        PLCObject.LogMessage("Wiimote %s not found"%mac_addr)
        os.remove("wiimac.txt")
        connected_callback(None)

def Disconnect_Wiimote():
  global wiimote
  if wiimote is not None:
    wiimote.disable(cwiid.FLAG_MESG_IFC)
    time.sleep(0.1)
    wiimote.close()
    wiimote = None
    PLCObject.LogMessage("Wiimote disconnected")

]]>
  </globals>
  <init>
<![CDATA[
]]>
  </init>
  <cleanup>
<![CDATA[
Disconnect_Wiimote()

]]>
  </cleanup>
  <start>
<![CDATA[
]]>
  </start>
  <stop>
<![CDATA[
]]>
  </stop>
</PyFile>