+ validates :speech_balloon_template_id, :presence => true, :numericality => true, :existence => {:both => false}
+ validates :speech_balloon_template_classname, :presence => true, :length => {:maximum => 50}
+ validates :writing_format_id, :presence => true, :numericality => true, :existence => {:both => false}
+ validates :writing_format_classname, :presence => true, :length => {:maximum => 50}
+ validates :font_size, :presence => true, :numericality => {:only_integer => false}
+ validates :text_align, :presence => true, :numericality => true, :inclusion => { :in => 0..3 }
+ validates :fore_color, :presence => true, :numericality => {:greater_than_or_equal_to => 0, :less_than => 0x1000000}