#
#  tkextlib/iwidgets/spinner.rb
#                               by Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)
#

require 'tk'
require 'tkextlib/iwidgets.rb'

module Tk
  module Iwidgets
    class  Spinner < Tk::Iwidgets::Labeledwidget
    end
  end
end

class Tk::Iwidgets::Spinner
  TkCommandNames = ['::iwidgets::spinner'.freeze].freeze
  WidgetClassName = 'Spinner'.freeze
  WidgetClassNames[WidgetClassName] = self

  ####################################

  include Tk::ValidateConfigure

  class EntryfieldValidate < TkValidateCommand
    #class CalCmdArgs < TkUtil::CallbackSubst
    class ValidateArgs < TkUtil::CallbackSubst
      KEY_TBL  = [ 
        [ ?c, ?s, :char ], 
        [ ?P, ?s, :post ], 
        [ ?S, ?s, :current ], 
        [ ?W, ?w, :widget ], 
        nil
      ]
      PROC_TBL = [ 
        [ ?s, TkComm.method(:string) ], 
        [ ?w, TkComm.method(:window) ], 
        nil
      ]

      # for Ruby m17n :: ?x --> String --> char-code ( getbyte(0) )
      KEY_TBL.map!{|inf|
        if inf.kind_of?(Array)
          inf[0] = inf[0].getbyte(0) if inf[0].kind_of?(String)
          inf[1] = inf[1].getbyte(0) if inf[1].kind_of?(String)
        end
        inf
      }

      PROC_TBL.map!{|inf|
        if inf.kind_of?(Array)
          inf[0] = inf[0].getbyte(0) if inf[0].kind_of?(String)
        end
        inf
      }

      _setup_subst_table(KEY_TBL, PROC_TBL);
    end

    def self._config_keys
      ['validate', 'invalid']
    end
  end

  def __validation_class_list
    super() << EntryfieldValidate
  end

  Tk::ValidateConfigure.__def_validcmd(binding, EntryfieldValidate)

  ####################################

  def up
    tk_call_without_enc(@path, 'up')
    self
  end

  def down
    tk_call_without_enc(@path, 'down')
    self
  end

  def clear
    tk_call_without_enc(@path, 'clear')
    self
  end

  def delete(first, last=None)
    tk_send_without_enc('delete', first, last)
    self
  end

  def value
    _fromUTF8(tk_send_without_enc('get'))
  end
  def value= (val)
    tk_send_without_enc('delete', 0, 'end')
    tk_send_without_enc('insert', 0, _get_eval_enc_str(val))
    val
  end
  alias get value
  alias set value=

  def cursor=(index)
    tk_send_without_enc('icursor', index)
    #self
    index
  end
  alias icursor cursor=

  def index(idx)
    number(tk_send_without_enc('index', idx))
  end

  def insert(pos,text)
    tk_send_without_enc('insert', pos, _get_eval_enc_str(text))
    self
  end

  def mark(pos)
    tk_send_without_enc('scan', 'mark', pos)
    self
  end
  def dragto(pos)
    tk_send_without_enc('scan', 'dragto', pos)
    self
  end
  def selection_adjust(index)
    tk_send_without_enc('selection', 'adjust', index)
    self
  end
  def selection_clear
    tk_send_without_enc('selection', 'clear')
    self
  end
  def selection_from(index)
    tk_send_without_enc('selection', 'from', index)
    self
  end
  def selection_present()
    bool(tk_send_without_enc('selection', 'present'))
  end
  def selection_range(s, e)
    tk_send_without_enc('selection', 'range', s, e)
    self
  end
  def selection_to(index)
    tk_send_without_enc('selection', 'to', index)
    self
  end

  # based on tk/scrollable.rb
  def xview(*index)
    if index.size == 0
      list(tk_send_without_enc('xview'))
    else
      tk_send_without_enc('xview', *index)
      self
    end
  end
  def xview_moveto(*index)
    xview('moveto', *index)
  end
  def xview_scroll(*index)
    xview('scroll', *index)
  end
end