Method: TkVariable#initialize

Defined in:
lib/tk/variable.rb

#initialize(val = "", type = nil) ⇒ TkVariable

Returns a new instance of TkVariable.



283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
 
# File 'lib/tk/variable.rb', line 283

def initialize(val="", type=nil)
  # @id = Tk_VARIABLE_ID.join('')
  begin
    Tk_VARIABLE_ID.mutex.synchronize{
      @id = Tk_VARIABLE_ID.join(TkCore::INTERP._ip_id_)
      Tk_VARIABLE_ID[1].succ!
    }
  end until INTERP._invoke_without_enc('info', 'globals', @id).empty?

  TkVar_ID_TBL.mutex.synchronize{
    TkVar_ID_TBL[@id] = self
  }

  @var  = @id
  @elem = nil

  @def_default = false
  @default_val = nil

  @trace_var  = nil
  @trace_elem = nil
  @trace_opts = nil

  @type = nil
  var = self
  @element_type = Hash.new{|k,v| var.default_value_type }

  self.default_value_type = type

  # teach Tk-ip that @id is global var
  INTERP._invoke_without_enc('global', @id)
  #INTERP._invoke('global', @id)

  # create and init
  if val.kind_of?(Hash)
    # assoc-array variable
    self[''] = 0
    self.clear
  end
  self.value = val

=begin
  if val == []
    # INTERP._eval(format('global %s; set %s(0) 0; unset %s(0)',
    #                     @id, @id, @id))
  elsif val.kind_of?(Array)
    a = []
    # val.each_with_index{|e,i| a.push(i); a.push(array2tk_list(e))}
    # s = '"' + a.join(" ").gsub(/[\[\]$"]/, '\\\\\&') + '"'
    val.each_with_index{|e,i| a.push(i); a.push(e)}
    #s = '"' + array2tk_list(a).gsub(/[\[\]$"]/, '\\\\\&') + '"'
    s = '"' + array2tk_list(a).gsub(/[\[\]$"\\]/, '\\\\\&') + '"'
    INTERP._eval(format('global %s; array set %s %s', @id, @id, s))
  elsif  val.kind_of?(Hash)
    #s = '"' + val.to_a.collect{|e| array2tk_list(e)}.join(" ")\
    #             .gsub(/[\[\]$"]/, '\\\\\&') + '"'
    s = '"' + val.to_a.collect{|e| array2tk_list(e)}.join(" ")\
                 .gsub(/[\[\]$"\\]/, '\\\\\&') + '"'
    INTERP._eval(format('global %s; array set %s %s', @id, @id, s))
  else
    #s = '"' + _get_eval_string(val).gsub(/[\[\]$"]/, '\\\\\&') + '"'
    s = '"' + _get_eval_string(val).gsub(/[\[\]$"\\]/, '\\\\\&') + '"'
    INTERP._eval(format('global %s; set %s %s', @id, @id, s))
  end
=end
=begin
  if  val.kind_of?(Hash)
    #s = '"' + val.to_a.collect{|e| array2tk_list(e)}.join(" ")\
    #             .gsub(/[\[\]$"]/, '\\\\\&') + '"'
    s = '"' + val.to_a.collect{|e| array2tk_list(e)}.join(" ")\
                 .gsub(/[\[\]$"\\]/, '\\\\\&') + '"'
    INTERP._eval(Kernel.format('global %s; array set %s %s', @id, @id, s))
  else
    #s = '"' + _get_eval_string(val).gsub(/[\[\]$"]/, '\\\\\&') + '"'
    s = '"' + _get_eval_string(val).gsub(/[\[\]$"\\]/, '\\\\\&') + '"'
    INTERP._eval(Kernel.format('global %s; set %s %s', @id, @id, s))
  end
=end
end