EasyDialogs.py :  » Language-Interface » ChinesePython » chinesepython2.1.3-0.4 » Mac » Lib » Python Open Source

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Python Open Source » Language Interface » ChinesePython 
ChinesePython » chinesepython2.1.3 0.4 » Mac » Lib » EasyDialogs.py
"""Easy to use dialogs.

Message(msg) -- display a message and an OK button.
AskString(prompt, default) -- ask for a string, display OK and Cancel buttons.
AskPassword(prompt, default) -- like AskString(), but shows text as bullets.
AskYesNoCancel(question, default) -- display a question and Yes, No and Cancel buttons.
bar = Progress(label, maxvalue) -- Display a progress bar
bar.set(value) -- Set value
bar.inc( *amount ) -- increment value by amount (default=1)
bar.label( *newlabel ) -- get or set text label. 

More documentation in each function.
This module uses DLOG resources 260 and on.
Based upon STDWIN dialogs with the same names and functions.
"""

from Dlg import GetNewDialog,SetDialogItemText,GetDialogItemText,ModalDialog
import Qd
import QuickDraw
import Dialogs
import Windows
import Dlg,Win,Evt,Events # sdm7g
import Ctl
import Controls
import Menu
import MacOS
import string
from ControlAccessor import *# Also import Controls constants
macfs

def cr2lf(text):
  if '\r' in text:
    text = string.join(string.split(text, '\r'), '\n')
  return text

def lf2cr(text):
  if '\n' in text:
    text = string.join(string.split(text, '\n'), '\r')
  if len(text) > 253:
    text = text[:253] + '\311'
  return text

def Message(msg, id=260, ok=None):
  """Display a MESSAGE string.
  
  Return when the user clicks the OK button or presses Return.
  
  The MESSAGE string can be at most 255 characters long.
  """
  
  d = GetNewDialog(id, -1)
  if not d:
    print "Can't get DLOG resource with id =", id
    return
  h = d.GetDialogItemAsControl(2)
  SetDialogItemText(h, lf2cr(msg))
  if ok != None:
    h = d.GetDialogItemAsControl(1)
    h.SetControlTitle(ok)
  d.SetDialogDefaultItem(1)
  d.AutoSizeDialog()
  d.GetDialogWindow().ShowWindow()
  while 1:
    n = ModalDialog(None)
    if n == 1:
      return


def AskString(prompt, default = "", id=261, ok=None, cancel=None):
  """Display a PROMPT string and a text entry field with a DEFAULT string.
  
  Return the contents of the text entry field when the user clicks the
  OK button or presses Return.
  Return None when the user clicks the Cancel button.
  
  If omitted, DEFAULT is empty.
  
  The PROMPT and DEFAULT strings, as well as the return value,
  can be at most 255 characters long.
  """
  
  d = GetNewDialog(id, -1)
  if not d:
    print "Can't get DLOG resource with id =", id
    return
  h = d.GetDialogItemAsControl(3)
  SetDialogItemText(h, lf2cr(prompt))
  h = d.GetDialogItemAsControl(4)
  SetDialogItemText(h, lf2cr(default))
  d.SelectDialogItemText(4, 0, 999)
#  d.SetDialogItem(4, 0, 255)
  if ok != None:
    h = d.GetDialogItemAsControl(1)
    h.SetControlTitle(ok)
  if cancel != None:
    h = d.GetDialogItemAsControl(2)
    h.SetControlTitle(cancel)
  d.SetDialogDefaultItem(1)
  d.SetDialogCancelItem(2)
  d.AutoSizeDialog()
  d.GetDialogWindow().ShowWindow()
  while 1:
    n = ModalDialog(None)
    if n == 1:
      h = d.GetDialogItemAsControl(4)
      return cr2lf(GetDialogItemText(h))
    if n == 2: return None

def AskPassword(prompt,   default='', id=264, ok=None, cancel=None):  
  """Display a PROMPT string and a text entry field with a DEFAULT string.
  The string is displayed as bullets only.
  
  Return the contents of the text entry field when the user clicks the
  OK button or presses Return.
  Return None when the user clicks the Cancel button.
  
  If omitted, DEFAULT is empty.
  
  The PROMPT and DEFAULT strings, as well as the return value,
  can be at most 255 characters long.
  """
  d = GetNewDialog(id, -1)
  if not d:
    print "Can't get DLOG resource with id =", id
    return
  h = d.GetDialogItemAsControl(3)
  SetDialogItemText(h, lf2cr(prompt))  
  pwd = d.GetDialogItemAsControl(4)
  bullets = '\245'*len(default)
##  SetControlData(pwd, kControlEditTextPart, kControlEditTextTextTag, bullets)
  SetControlData(pwd, kControlEditTextPart, kControlEditTextPasswordTag, default)
  d.SelectDialogItemText(4, 0, 999)
  Ctl.SetKeyboardFocus(d.GetDialogWindow(), pwd, kControlEditTextPart)
  if ok != None:
    h = d.GetDialogItemAsControl(1)
    h.SetControlTitle(ok)
  if cancel != None:
    h = d.GetDialogItemAsControl(2)
    h.SetControlTitle(cancel)
  d.SetDialogDefaultItem(Dialogs.ok)
  d.SetDialogCancelItem(Dialogs.cancel)
  d.AutoSizeDialog()
  d.GetDialogWindow().ShowWindow()
  while 1:
    n = ModalDialog(None)
    if n == 1:
      h = d.GetDialogItemAsControl(4)
      return cr2lf(GetControlData(pwd, kControlEditTextPart, kControlEditTextPasswordTag))
    if n == 2: return None

def AskYesNoCancel(question, default = 0, yes=None, no=None, cancel=None, id=262):
  """Display a QUESTION string which can be answered with Yes or No.
  
  Return 1 when the user clicks the Yes button.
  Return 0 when the user clicks the No button.
  Return -1 when the user clicks the Cancel button.
  
  When the user presses Return, the DEFAULT value is returned.
  If omitted, this is 0 (No).
  
  The QUESTION string can be at most 255 characters.
  """
  
  d = GetNewDialog(id, -1)
  if not d:
    print "Can't get DLOG resource with id =", id
    return
  # Button assignments:
  # 1 = default (invisible)
  # 2 = Yes
  # 3 = No
  # 4 = Cancel
  # The question string is item 5
  h = d.GetDialogItemAsControl(5)
  SetDialogItemText(h, lf2cr(question))
  if yes != None:
    if yes == '':
      d.HideDialogItem(2)
    else:
      h = d.GetDialogItemAsControl(2)
      h.SetControlTitle(yes)
  if no != None:
    if no == '':
      d.HideDialogItem(3)
    else:
      h = d.GetDialogItemAsControl(3)
      h.SetControlTitle(no)
  if cancel != None:
    if cancel == '':
      d.HideDialogItem(4)
    else:
      h = d.GetDialogItemAsControl(4)
      h.SetControlTitle(cancel)
  d.SetDialogCancelItem(4)
  if default == 1:
    d.SetDialogDefaultItem(2)
  elif default == 0:
    d.SetDialogDefaultItem(3)
  elif default == -1:
    d.SetDialogDefaultItem(4)
  d.AutoSizeDialog()
  d.GetDialogWindow().ShowWindow()
  while 1:
    n = ModalDialog(None)
    if n == 1: return default
    if n == 2: return 1
    if n == 3: return 0
    if n == 4: return -1


    

screenbounds = Qd.qd.screenBits.bounds
screenbounds = screenbounds[0]+4, screenbounds[1]+4, \
  screenbounds[2]-4, screenbounds[3]-4

        
class ProgressBar:
  def __init__(self, title="Working...", maxval=100, label="", id=263):
    self.w = None
    self.d = None
    self.maxval = maxval
    self.curval = -1
    self.d = GetNewDialog(id, -1)
    self.w = self.d.GetDialogWindow()
    self.label(label)
    self._update(0)
    self.d.AutoSizeDialog()
    self.title(title)
    self.w.ShowWindow()
    self.d.DrawDialog()

  def __del__( self ):
    if self.w:
      self.w.BringToFront()
      self.w.HideWindow()
    del self.w
    del self.d
    
  def title(self, newstr=""):
    """title(text) - Set title of progress window"""
    self.w.BringToFront()
    self.w.SetWTitle(newstr)
    
  def label( self, *newstr ):
    """label(text) - Set text in progress box"""
    self.w.BringToFront()
    if newstr:
      self._label = lf2cr(newstr[0])
    text_h = self.d.GetDialogItemAsControl(2)
    SetDialogItemText(text_h, self._label)    
        
  def _update(self, value):
    maxval = self.maxval
    if maxval == 0:
      # XXXX Quick fix. Should probably display an unknown duration
      value = 0
      maxval = 1
    if maxval > 32767:
      value = int(value/(maxval/32767.0))
      maxval = 32767
    progbar = self.d.GetDialogItemAsControl(3)
    progbar.SetControlMaximum(maxval)
    progbar.SetControlValue(value)  
    # Test for cancel button
    
    ready, ev = Evt.WaitNextEvent( Events.mDownMask, 1  )
    if ready : 
      what,msg,when,where,mod = ev
      part = Win.FindWindow(where)[0]
      if Dlg.IsDialogEvent(ev):
        ds = Dlg.DialogSelect(ev)
        if ds[0] and ds[1] == self.d and ds[-1] == 1:
          self.w.HideWindow()
          self.w = None
          self.d = None
          raise KeyboardInterrupt, ev
      else:
        if part == 4:  # inDrag 
          self.w.DragWindow(where, screenbounds)
        else:
          MacOS.HandleEvent(ev) 
      
      
  def set(self, value, max=None):
    """set(value) - Set progress bar position"""
    if max != None:
      self.maxval = max
    if value < 0: value = 0
    if value > self.maxval: value = self.maxval
    self.curval = value
    self._update(value)

  def inc(self, n=1):
    """inc(amt) - Increment progress bar position"""
    self.set(self.curval + n)

ARGV_ID=265
ARGV_ITEM_OK=1
ARGV_ITEM_CANCEL=2
ARGV_OPTION_GROUP=3
ARGV_OPTION_EXPLAIN=4
ARGV_OPTION_VALUE=5
ARGV_OPTION_ADD=6
ARGV_COMMAND_GROUP=7
ARGV_COMMAND_EXPLAIN=8
ARGV_COMMAND_ADD=9
ARGV_ADD_OLDFILE=10
ARGV_ADD_NEWFILE=11
ARGV_ADD_FOLDER=12
ARGV_CMDLINE_GROUP=13
ARGV_CMDLINE_DATA=14

##def _myModalDialog(d):
##  while 1:
##    ready, ev = Evt.WaitNextEvent(0xffff, -1)
##    print 'DBG: WNE', ready, ev
##    if ready : 
##      what,msg,when,where,mod = ev
##      part, window = Win.FindWindow(where)
##      if Dlg.IsDialogEvent(ev):
##        didit, dlgdone, itemdone = Dlg.DialogSelect(ev)
##        print 'DBG: DialogSelect', didit, dlgdone, itemdone, d
##        if didit and dlgdone == d:
##          return itemdone
##      elif window == d.GetDialogWindow():
##        d.GetDialogWindow().SelectWindow()
##        if part == 4:  # inDrag 
##            d.DragWindow(where, screenbounds)
##        else:
##          MacOS.HandleEvent(ev) 
##      else:
##        MacOS.HandleEvent(ev) 
##
def _setmenu(control, items):
    mhandle = control.GetControlData_Handle(Controls.kControlMenuPart,
        Controls.kControlPopupButtonMenuHandleTag)
    menu = Menu.as_Menu(mhandle)
    for item in items:
      if type(item) == type(()):
        label = item[0]
      else:
        label = item
      if label[-1] == '=' or label[-1] == ':':
        label = label[:-1]
      menu.AppendMenu(label)
##    mhandle, mid = menu.getpopupinfo()
##    control.SetControlData_Handle(Controls.kControlMenuPart,
##        Controls.kControlPopupButtonMenuHandleTag, mhandle)
    control.SetControlMinimum(1)
    control.SetControlMaximum(len(items)+1)
    
def _selectoption(d, optionlist, idx):
  if idx < 0 or idx >= len(optionlist):
    MacOS.SysBeep()
    return
  option = optionlist[idx]
  if type(option) == type(()) and \
      len(option) > 1:
    help = option[-1]
  else:
    help = ''
  h = d.GetDialogItemAsControl(ARGV_OPTION_EXPLAIN)
  Dlg.SetDialogItemText(h, help)
  hasvalue = 0
  if type(option) == type(()):
    label = option[0]
  else:
    label = option
  if label[-1] == '=' or label[-1] == ':':
    hasvalue = 1
  h = d.GetDialogItemAsControl(ARGV_OPTION_VALUE)
  Dlg.SetDialogItemText(h, '')
  if hasvalue:
    d.ShowDialogItem(ARGV_OPTION_VALUE)
    d.SelectDialogItemText(ARGV_OPTION_VALUE, 0, 0)
  else:
    d.HideDialogItem(ARGV_OPTION_VALUE)


def GetArgv(optionlist=None, commandlist=None, addoldfile=1, addnewfile=1, addfolder=1, id=ARGV_ID):
  d = GetNewDialog(id, -1)
  if not d:
    print "Can't get DLOG resource with id =", id
    return
#  h = d.GetDialogItemAsControl(3)
#  SetDialogItemText(h, lf2cr(prompt))
#  h = d.GetDialogItemAsControl(4)
#  SetDialogItemText(h, lf2cr(default))
#  d.SelectDialogItemText(4, 0, 999)
#  d.SetDialogItem(4, 0, 255)
  if optionlist:
    _setmenu(d.GetDialogItemAsControl(ARGV_OPTION_GROUP), optionlist)
    _selectoption(d, optionlist, 0)
  else:
    d.GetDialogItemAsControl(ARGV_OPTION_GROUP).DeactivateControl()
  if commandlist:
    _setmenu(d.GetDialogItemAsControl(ARGV_COMMAND_GROUP), commandlist)
    if type(commandlist[0]) == type(()) and len(commandlist[0]) > 1:
      help = commandlist[0][-1]
      h = d.GetDialogItemAsControl(ARGV_COMMAND_EXPLAIN)
      Dlg.SetDialogItemText(h, help)
  else:
    d.GetDialogItemAsControl(ARGV_COMMAND_GROUP).DeactivateControl()
  if not addoldfile:
    d.GetDialogItemAsControl(ARGV_ADD_OLDFILE).DeactivateControl()
  if not addnewfile:
    d.GetDialogItemAsControl(ARGV_ADD_NEWFILE).DeactivateControl()
  if not addfolder:
    d.GetDialogItemAsControl(ARGV_ADD_FOLDER).DeactivateControl()
  d.SetDialogDefaultItem(ARGV_ITEM_OK)
  d.SetDialogCancelItem(ARGV_ITEM_CANCEL)
  d.GetDialogWindow().ShowWindow()
  d.DrawDialog()
  appsw = MacOS.SchedParams(1, 0)
  try:
    while 1:
      stringstoadd = []
      n = ModalDialog(None)
      if n == ARGV_ITEM_OK:
        break
      elif n == ARGV_ITEM_CANCEL:
        raise SystemExit
      elif n == ARGV_OPTION_GROUP:
        idx = d.GetDialogItemAsControl(ARGV_OPTION_GROUP).GetControlValue()-1
        _selectoption(d, optionlist, idx)
      elif n == ARGV_OPTION_VALUE:
        pass
      elif n == ARGV_OPTION_ADD:
        idx = d.GetDialogItemAsControl(ARGV_OPTION_GROUP).GetControlValue()-1
        if 0 <= idx < len(optionlist):
          option = optionlist[idx]
          if type(option) == type(()):
            option = option[0]
          if option[-1] == '=' or option[-1] == ':':
            option = option[:-1]
            h = d.GetDialogItemAsControl(ARGV_OPTION_VALUE)
            value = Dlg.GetDialogItemText(h)
          else:
            value = ''
          if len(option) == 1:
            stringtoadd = '-' + option
          else:
            stringtoadd = '--' + option
          stringstoadd = [stringtoadd]
          if value:
            stringstoadd.append(value)
        else:
          MacOS.SysBeep()
      elif n == ARGV_COMMAND_GROUP:
        idx = d.GetDialogItemAsControl(ARGV_COMMAND_GROUP).GetControlValue()-1
        if 0 <= idx < len(commandlist) and type(commandlist[idx]) == type(()) and \
            len(commandlist[idx]) > 1:
          help = commandlist[idx][-1]
          h = d.GetDialogItemAsControl(ARGV_COMMAND_EXPLAIN)
          Dlg.SetDialogItemText(h, help)
      elif n == ARGV_COMMAND_ADD:
        idx = d.GetDialogItemAsControl(ARGV_COMMAND_GROUP).GetControlValue()-1
        if 0 <= idx < len(commandlist):
          command = commandlist[idx]
          if type(command) == type(()):
            command = command[0]
          stringstoadd = [command]
        else:
          MacOS.SysBeep()
      elif n == ARGV_ADD_OLDFILE:
        fss, ok = macfs.StandardGetFile()
        if ok:
          stringstoadd = [fss.as_pathname()]
      elif n == ARGV_ADD_NEWFILE:
        fss, ok = macfs.StandardPutFile('')
        if ok:
          stringstoadd = [fss.as_pathname()]
      elif n == ARGV_ADD_FOLDER:
        fss, ok = macfs.GetDirectory()
        if ok:
          stringstoadd = [fss.as_pathname()]
      elif n == ARGV_CMDLINE_DATA:
        pass # Nothing to do
      else:
        raise RuntimeError, "Unknown dialog item %d"%n
      
      for stringtoadd in stringstoadd:
        if '"' in stringtoadd or "'" in stringtoadd or " " in stringtoadd:
          stringtoadd = `stringtoadd`
        h = d.GetDialogItemAsControl(ARGV_CMDLINE_DATA)
        oldstr = GetDialogItemText(h)
        if oldstr and oldstr[-1] != ' ':
          oldstr = oldstr + ' '
        oldstr = oldstr + stringtoadd
        if oldstr[-1] != ' ':
          oldstr = oldstr + ' '
        SetDialogItemText(h, oldstr)
        d.SelectDialogItemText(ARGV_CMDLINE_DATA, 0x7fff, 0x7fff)
    h = d.GetDialogItemAsControl(ARGV_CMDLINE_DATA)
    oldstr = GetDialogItemText(h)
    tmplist = string.split(oldstr)
    newlist = []
    while tmplist:
      item = tmplist[0]
      del tmplist[0]
      if item[0] == '"':
        while item[-1] != '"':
          if not tmplist:
            raise RuntimeError, "Unterminated quoted argument"
          item = item + ' ' + tmplist[0]
          del tmplist[0]
        item = item[1:-1]
      if item[0] == "'":
        while item[-1] != "'":
          if not tmplist:
            raise RuntimeError, "Unterminated quoted argument"
          item = item + ' ' + tmplist[0]
          del tmplist[0]
        item = item[1:-1]
      newlist.append(item)
    return newlist
  finally:
    apply(MacOS.SchedParams, appsw)
    del d
  
def test():
  import time, sys

  Message("Testing EasyDialogs.")
  optionlist = (('v', 'Verbose'), ('verbose', 'Verbose as long option'), 
        ('flags=', 'Valued option'), ('f:', 'Short valued option'))
  commandlist = (('start', 'Start something'), ('stop', 'Stop something'))
  argv = GetArgv(optionlist=optionlist, commandlist=commandlist, addoldfile=0)
  for i in range(len(argv)):
    print 'arg[%d] = %s'%(i, `argv[i]`)
  print 'Type return to continue - ',
  sys.stdin.readline()
  ok = AskYesNoCancel("Do you want to proceed?")
  ok = AskYesNoCancel("Do you want to identify?", yes="Identify", no="No")
  if ok > 0:
    s = AskString("Enter your first name", "Joe")
    s2 = AskPassword("Okay %s, tell us your nickname"%s, s, cancel="None")
    if not s2:
      Message("%s has no secret nickname"%s)
    else:
      Message("Hello everybody!!\nThe secret nickname of %s is %s!!!"%(s, s2))
  text = ( "Working Hard...", "Hardly Working..." , 
      "So far, so good!", "Keep on truckin'" )
  bar = ProgressBar("Progress, progress...", 100)
  try:
    appsw = MacOS.SchedParams(1, 0)
    for i in range(100):
      bar.set(i)
      time.sleep(0.1)
      if i % 10 == 0:
        bar.label(text[(i/10) % 4])
    bar.label("Done.")
    time.sleep(0.3)   # give'em a chance to see the done.
  finally:
    del bar
    apply(MacOS.SchedParams, appsw)

if __name__ == '__main__':
  try:
    test()
  except KeyboardInterrupt:
    Message("Operation Canceled.")

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