#
# tk/toplevel.rb : treat toplevel widget
#
require 'tk'
require 'tk/wm'
require 'tk/menuspec'

class TkToplevel<TkWindow
  include Wm
  include TkMenuSpec

  TkCommandNames = ['toplevel'.freeze].freeze
  WidgetClassName = 'Toplevel'.freeze
  WidgetClassNames[WidgetClassName] = self

################# old version
#  def initialize(parent=nil, screen=nil, classname=nil, keys=nil)
#    if screen.kind_of? Hash
#      keys = screen.dup
#    else
#      @screen = screen
#    end
#    @classname = classname
#    if keys.kind_of? Hash
#      keys = keys.dup
#      @classname = keys.delete('classname') if keys.key?('classname')
#      @colormap  = keys.delete('colormap')  if keys.key?('colormap')
#      @container = keys.delete('container') if keys.key?('container')
#      @screen    = keys.delete('screen')    if keys.key?('screen')
#      @use       = keys.delete('use')       if keys.key?('use')
#      @visual    = keys.delete('visual')    if keys.key?('visual')
#    end
#    super(parent, keys)
#  end
#
#  def create_self
#    s = []
#    s << "-class"     << @classname if @classname
#    s << "-colormap"  << @colormap  if @colormap
#    s << "-container" << @container if @container
#    s << "-screen"    << @screen    if @screen 
#    s << "-use"       << @use       if @use
#    s << "-visual"    << @visual    if @visual
#    tk_call 'toplevel', @path, *s
#  end
#################

  def _wm_command_option_chk(keys)
    keys = {} unless keys
    new_keys = {}
    wm_cmds = {}
    keys.each{|k,v|
      if Wm.method_defined?(k)
        case k
        when 'screen','class','colormap','container','use','visual'
          new_keys[k] = v
        else
          case self.method(k).arity
          when -1,1
            wm_cmds[k] = v
          else
            new_keys[k] = v
          end
        end
      else
        new_keys[k] = v
      end
    }
    [new_keys, wm_cmds]
  end
  private :_wm_command_option_chk

  def initialize(parent=nil, screen=nil, classname=nil, keys=nil)
    my_class_name = nil
    if self.class < WidgetClassNames[WidgetClassName]
      my_class_name = self.class.name
      my_class_name = nil if my_class_name == ''
    end
    if parent.kind_of? Hash
      keys = _symbolkey2str(parent)
      if keys.key?('classname')
        keys['class'] = keys.delete('classname')
      end
      @classname = keys['class']
      @colormap  = keys['colormap']
      @container = keys['container']
      @screen    = keys['screen']
      @use       = keys['use']
      @visual    = keys['visual']
      if !@classname && my_class_name
        keys['class'] = @classname = my_class_name 
      end
      if @classname.kind_of? TkBindTag
        @db_class = @classname
        @classname = @classname.id
      elsif @classname
        @db_class = TkDatabaseClass.new(@classname)
      else
        @db_class = self.class
        @classname = @db_class::WidgetClassName
      end
      keys, cmds = _wm_command_option_chk(keys)
      super(keys)
      cmds.each{|k,v| 
        if v.kind_of? Array
          self.__send__(k,*v)
        else
          self.__send__(k,v)
        end
      }
      return
    end

    if screen.kind_of? Hash
      keys = screen
    else
      @screen = screen
      if classname.kind_of? Hash
        keys = classname
      else
        @classname = classname
      end
    end
    if keys.kind_of? Hash
      keys = _symbolkey2str(keys)
      if keys.key?('classname')
        keys['class'] = keys.delete('classname')
      end
      @classname = keys['class']  unless @classname
      @colormap  = keys['colormap']
      @container = keys['container']
      @screen    = keys['screen'] unless @screen
      @use       = keys['use']
      @visual    = keys['visual']
    else
      keys = {}
    end
    if !@classname && my_class_name
      keys['class'] = @classname = my_class_name 
    end
    if @classname.kind_of? TkBindTag
      @db_class = @classname
      @classname = @classname.id
    elsif @classname
      @db_class = TkDatabaseClass.new(@classname)
    else
      @db_class = self.class
      @classname = @db_class::WidgetClassName
    end
    keys, cmds = _wm_command_option_chk(keys)
    super(parent, keys)
    cmds.each{|k,v| 
      if v.kind_of? Array
        self.send(k,*v)
      else
        self.send(k,v)
      end
    }
  end

  #def create_self(keys)
  #  if keys and keys != None
  #    tk_call_without_enc('toplevel', @path, *hash_kv(keys, true))
  #  else
  #    tk_call_without_enc('toplevel', @path)
  #  end
  #end
  #private :create_self

  def specific_class
    @classname
  end

  def add_menu(menu_info, tearoff=false, opts=nil)
    # See tk/menuspec.rb for menu_info.
    # opts is a hash of default configs for all of cascade menus. 
    # Configs of menu_info can override it. 
    if tearoff.kind_of?(Hash)
      opts = tearoff
      tearoff = false
    end
    _create_menubutton(self, menu_info, tearoff, opts)
  end

  def add_menubar(menu_spec, tearoff=false, opts=nil)
    # See tk/menuspec.rb for menu_spec.
    # opts is a hash of default configs for all of cascade menus.
    # Configs of menu_spec can override it. 
    menu_spec.each{|info| add_menu(info, tearoff, opts)}
    self.menu
  end

  def self.database_class
    if self == WidgetClassNames[WidgetClassName] || self.name == ''
      self
    else
      TkDatabaseClass.new(self.name)
    end
  end
  def self.database_classname
    self.database_class.name
  end

  def self.bind(*args, &b)
    if self == WidgetClassNames[WidgetClassName] || self.name == ''
      super(*args, &b)
    else
      TkDatabaseClass.new(self.name).bind(*args, &b)
    end
  end
  def self.bind_append(*args, &b)
    if self == WidgetClassNames[WidgetClassName] || self.name == ''
      super(*args, &b)
    else
      TkDatabaseClass.new(self.name).bind_append(*args, &b)
    end
  end
  def self.bind_remove(*args)
    if self == WidgetClassNames[WidgetClassName] || self.name == ''
      super(*args)
    else
      TkDatabaseClass.new(self.name).bind_remove(*args)
    end
  end
  def self.bindinfo(*args)
    if self == WidgetClassNames[WidgetClassName] || self.name == ''
      super(*args)
    else
      TkDatabaseClass.new(self.name).bindinfo(*args)
    end
  end
end
