Class: Tk::OptionObj

Inherits:
Hash show all
Includes:
TkUtil
Defined in:
lib/tk/optionobj.rb

Constant Summary

Constants included from TkUtil

TkUtil::None, TkUtil::RELEASE_DATE

Instance Method Summary collapse

Methods included from TkUtil

#_conv_args, _conv_args, #_fromUTF8, #_get_eval_enc_str, _get_eval_enc_str, #_get_eval_string, _get_eval_string, _symbolkey2str, #_symbolkey2str, #_toUTF8, #bool, bool, callback, eval_cmd, #hash_kv, hash_kv, install_cmd, #num_or_nil, num_or_nil, num_or_str, #num_or_str, number, #number, string, #string, uninstall_cmd, untrust

Constructor Details

#initialize(hash = nil) ⇒ OptionObj

Returns a new instance of OptionObj.



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# File 'lib/tk/optionobj.rb', line 17

def initialize(hash = nil)
  super()
  @observ = []
  update_without_notify(_symbolkey2str(hash)) if hash
end

Instance Method Details

#+(hash) ⇒ Object 



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# File 'lib/tk/optionobj.rb', line 163

def +(hash)
  unless hash.kind_of?(Hash)
    fail ArgumentError, "expect a Hash"
  end
  new_obj = self.dup
  new_obj.update_without_notify(_symbolkey2str(hash))
  new_obj
end

#[](key) ⇒ Object Also known as: cget 



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# File 'lib/tk/optionobj.rb', line 187

def [](key)
  super(key.to_s)
end

#[]=(key, val) ⇒ Object 



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# File 'lib/tk/optionobj.rb', line 197

def []=(key, val)
  store(key,val)
end

#assign(*wins) ⇒ Object 



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# File 'lib/tk/optionobj.rb', line 59

def assign(*wins)
  # win :=
  #   widget             #==> call widget.configure(hash)
  #   [widget]           #==> call widget.configure(hash)
  #   [widget, nil, {src=>target, ... }]
  #                      #==> call widget.configure(hash)
  #                               with converting hash-key
  #   [widget, method]   #==> call widget.method(hash)
  #   [widget, method, {src=>target, ... }]
  #                      #==> call widget.method(hash)
  #                               with converting hash-key
  #   [widget [receiver, method, arg, ... ]]
  #                      #==> call receiver.method(arg, ... , hash)
  #   [widget [receiver, method, arg, ... ], {src=>target, ... }]
  #                      #==> call receiver.method(arg, ... , hash)
  #                               with onverting hash-key
  #
  # src := option_name_on_optobj
  #
  # target :=
  #   nil                #==> not use the src
  #   option_name_on_target_widget
  #   [ option_name_on_target_widget, ... ]
  #                      #==> set all of them
  #
  wins.each{|win|
    _remove_win(win)
    @observ << win
    notify(win)
  }
  self
end

#configure(key, value = nil) ⇒ Object 



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# File 'lib/tk/optionobj.rb', line 179

def configure(key, value=nil)
  if key.kind_of?(Hash)
    update(key)
  else
    store(key,value)
  end
end

#notify(target = nil) ⇒ Object Also known as: apply 



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# File 'lib/tk/optionobj.rb', line 99

def notify(target = nil)
  if target
    targets = [target]
  elsif @observ.empty?
    return self
  else
    targets = @observ.dup
  end

  return self if empty?

  org_hash = _symbolkey2str(self)

  targets.each{|win|
    widget = receiver = win
    hash = org_hash
    begin
      if win.kind_of?(Array)
        widget, method, conv_tbl = win
        receiver = widget

        if conv_tbl
          hash = {}
          org_hash.each{|key, val|
            key = conv_tbl[key] if conv_tbl.key?(key)
            next unless key
            if key.kind_of?(Array)
              key.each{|k| hash[k] = val}
            else
              hash[key] = val
            end
          }
        end

        if method.kind_of?(Array)
          receiver, method, *args = method
          receiver.__send__(method, *(args << hash))
        elsif method
          widget.__send__(method, hash)
        else
          widget.configure(hash)
        end

      else
        widget.configure(self)
      end
    rescue => e
      if ( ( widget.kind_of?(TkObject) \
            && widget.respond_to?('exist?') \
            && ! receiver.exist? ) \
        || ( receiver.kind_of?(TkObject) \
            && receiver.respond_to?('exist?') \
            && ! receiver.exist? ) )
        @observ.delete(win)
      else
        fail e
      end
    end
  }

  self
end

#observ_info ⇒ Object 



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# File 'lib/tk/optionobj.rb', line 23

def observ_info
  @observ.dup
end

#observs ⇒ Object 



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# File 'lib/tk/optionobj.rb', line 27

def observs
  @observ.collect{|win|
    if win.kind_of?(Array)
      win[0]
    else
      win
    end
  }
end

#replace(hash) ⇒ Object 



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# File 'lib/tk/optionobj.rb', line 201

def replace(hash)
  super(_symbolkey2str(hash))
  notify
end

#store(key, val) ⇒ Object 



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# File 'lib/tk/optionobj.rb', line 192

def store(key, val)
  key = key.to_s
  super(key, val)
  notify
end

#unassign(*wins) ⇒ Object 



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# File 'lib/tk/optionobj.rb', line 92

def unassign(*wins)
  wins.each{|win|
    _remove_win(win)
  }
  self
end

#update(hash) ⇒ Object 



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# File 'lib/tk/optionobj.rb', line 174

def update(hash)
  update_without_notify(_symbolkey2str(hash))
  notify
end

#update_without_notify ⇒ Object 



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# File 'lib/tk/optionobj.rb', line 172

alias update_without_notify update