grail.py :  » Language-Interface » ChinesePython » chinesepython2.1.3-0.4 » Mac » Demo » speech » Python Open Source

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Python Open Source » Language Interface » ChinesePython 
ChinesePython » chinesepython2.1.3 0.4 » Mac » Demo » speech » grail.py
# Pass this program the Holy Grail script on stdin.
import sys
import string
import stdwin
from stdwinevents import *

try:
  import macspeech
except ImportError:
  macspeech = None

WINWIDTH = 1000
scrw, scrh = stdwin.getscrsize()
if WINWIDTH > 0.8*scrw:
  WINWIDTH = int(0.8*scrw)
BLACK = stdwin.fetchcolor('black')
RED = stdwin.fetchcolor('red')
BLUE = stdwin.fetchcolor('blue')

done='done'

class MacSpeaker:
  def __init__(self):
    self.voices = []
    self.nvoices = macspeech.CountVoices()
    self.curvoice = 1
    self.rate = 1.0
    
  def _newvoice(self):
    vd = macspeech.GetIndVoice(self.curvoice)
    sc = vd.NewChannel()
    self.curvoice = self.curvoice + 1
    if self.curvoice > self.nvoices:
      self.curvoice = 1
    return sc
    
  def newvoices(self, n):
    self.voices = []
    for i in range(n):
      self.voices.append(self._newvoice())
    if self.rate <> 1.0:
      self.setrate(1.0)
      
  def setrate(self, factor):
    self.rate = self.rate*factor
    for v in self.voices:
      r = v.GetRate()
      v.SetRate(r*factor)
          
  def speak(self, i, text):
    self.voices[i-1].SpeakText(text)
    
  def busy(self):
    return macspeech.Busy()

[NOTHING, NEWSCENE, ACT, TEXT, MORETEXT] = range(5)
def parseline(line):
  stripline = string.strip(line)
  if not stripline:
    return NOTHING, ''
  if stripline[:5] == 'Scene':
    return NEWSCENE, stripline
  if line[0] == '[':
    return ACT, stripline
  if line[0] == ' ' and ':' in line:
    splitline = string.splitfields(stripline, ':')
    stripline = string.joinfields(splitline[1:], ':')
    return TEXT, (splitline[0], string.strip(stripline))
  return MORETEXT, stripline

def readscript(file):
  lines = file.readlines()
  acts = []
  actor_dict = {}
  longest = 0
  prev_act = 0
  for i in range(len(lines)):
    tp, data = parseline(lines[i])
    if tp == NEWSCENE:
      acts.append((actor_dict.keys(), lines[prev_act:i]))
      prev_act = i
      actor_dict = {}
    elif tp == TEXT:
      actor_dict[data[0]] = 1
    lines[i] = tp, data
  return acts[1:]

class Main:
  def __init__(self):
    if macspeech:
      self.speaker = MacSpeaker()
    else:
      self.speaker = None
    sys.stdin = open('SCRIPT', 'r')
    self.acts = readscript(sys.stdin)
    maxactor = 0
    for actorlist, actdata in self.acts:
      if len(actorlist) > maxactor:
        maxactor = len(actorlist)
    if not self.loadnextact():
      print 'No acts to play!'
      raise done
    self.lh = stdwin.lineheight()
    self.winheight = (maxactor+2)*self.lh
    stdwin.setdefwinsize(WINWIDTH, self.winheight)
    self.win = stdwin.open('The Play')
    self.win.setdocsize(WINWIDTH, self.winheight)
    self.win.change(((0,0),(WINWIDTH, self.winheight)))
    self.menu = self.win.menucreate('Play')
    self.menu.additem('Faster', '+')
    self.menu.additem('Slower', '-')
    self.menu.additem('Quit', 'Q')
    self.speed = 4
    
  def done(self):
    del self.win
    del self.menu

  def loadnextact(self):
    if not self.acts: return 0
    actors, lines = self.acts[0]
    del self.acts[0]
    prevactor = 0
    for i in range(len(lines)):
      tp, data = lines[i]
      if tp == NOTHING:
        continue
      elif tp in (NEWSCENE, ACT):
        lines[i] = 0, data
      elif tp == TEXT:
        prevactor = actors.index(data[0])
        lines[i] = prevactor+1, data[1]
      else:
        lines[i] = prevactor+1, data
    self.lines = lines
    self.actors = [''] + actors
    self.actorlines = [''] * len(self.actors)
    if self.speaker:
      self.speaker.newvoices(len(self.actors)-1)
    self.prevline = 0
    self.actwidth = 0
    for a in self.actors:
      w = stdwin.textwidth(a)
      if w > self.actwidth:
        self.actwidth = w
    return 1

  def loadnextline(self):
    if not self.lines: return 0
    self.actorlines[self.prevline] = ''
    top = self.lh*self.prevline
    self.win.change(((0, top), (WINWIDTH, top+self.lh)))
    line, data = self.lines[0]
    del self.lines[0]
    self.actorlines[line] = data
    self.prevline = line
    top = self.lh*self.prevline
    self.win.change(((0, top), (WINWIDTH, top+self.lh)))
    if line == 0:
      self.win.settimer(5*self.speed)
    else:
      if self.speaker:
        self.speaker.speak(line, data)
        tv = 1
      else:
        nwords = len(string.split(data))
        tv = self.speed*(nwords+1)
      self.win.settimer(tv)
    return 1

  def timerevent(self):
    if self.speaker and self.speaker.busy():
      self.win.settimer(1)
      return
    while 1:
      if self.loadnextline(): return
      if not self.loadnextact():
        stdwin.message('The END')
        self.win.close()
        raise done
      self.win.change(((0,0), (WINWIDTH, self.winheight)))

  def redraw(self, top, bottom, draw):
    for i in range(len(self.actors)):
      tpos = i*self.lh
      bpos = (i+1)*self.lh-1
      if tpos < bottom and bpos > top:
        draw.setfgcolor(BLUE)
        draw.text((0, tpos), self.actors[i])
        if i == 0:
          draw.setfgcolor(RED)
        else:
          draw.setfgcolor(BLACK)
        draw.text((self.actwidth+5, tpos), self.actorlines[i])

  def run(self):
    self.win.settimer(10)
    while 1:
      ev, win, arg = stdwin.getevent()
      if ev == WE_DRAW:
        ((left, top), (right, bot)) = arg
        self.redraw(top, bot, self.win.begindrawing())
      elif ev == WE_TIMER:
        self.timerevent()
      elif ev == WE_CLOSE:
        self.win.close()
        raise done
      elif ev == WE_MENU and arg[0] == self.menu:
        if arg[1] == 0:
          if self.speed > 1:
            self.speed = self.speed/2
            if self.speaker:
              self.speaker.setrate(1.4)
        elif arg[1] == 1:
          self.speed = self.speed * 2
          if self.speaker:
            self.speaker.setrate(0.7)
        elif arg[1] == 2:
          self.win.close()
          raise done

if 1:
  main = Main()
  try:
    main.run()
  except done:
    pass
  del main
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