Class: PPCurses::BaseMenu

Inherits:
Object
  • Object
show all
Defined in:
lib/ppcurses/menu/BaseMenu.rb

Overview

noinspection RubyResolve

Direct Known Subclasses

Menu, RadioMenu

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(menu_items, action_items = nil) ⇒ BaseMenu

Returns a new instance of BaseMenu.



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# File 'lib/ppcurses/menu/BaseMenu.rb', line 13

def initialize(menu_items, action_items=nil)
  @selection=0
  @max_menu_width = 0

  @side_wall_char = '|'
  @top_bot_wall_char = '-'

  case menu_items[0]
    when String
      # Case 1: menu_items is a list of strings, with an associated action list
      build_menu_items(menu_items, action_items)
    else
      # Case 2: Received a list of MenuItem, or objects that implement
      # MenuItem protocol
      @menu_items=menu_items
  end

  find_max_menu_width

  create_window

end

Instance Attribute Details

Returns the value of attribute menu_items.



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# File 'lib/ppcurses/menu/BaseMenu.rb', line 6

def menu_items
  @menu_items
end

#selection ⇒ Object

Returns the value of attribute selection.



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# File 'lib/ppcurses/menu/BaseMenu.rb', line 7

def selection
  @selection
end

#side_wall_char ⇒ Object

Returns the value of attribute side_wall_char.



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# File 'lib/ppcurses/menu/BaseMenu.rb', line 9

def side_wall_char
  @side_wall_char
end

#top_bot_wall_char ⇒ Object

Returns the value of attribute top_bot_wall_char.



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# File 'lib/ppcurses/menu/BaseMenu.rb', line 10

def top_bot_wall_char
  @top_bot_wall_char
end

Instance Method Details

#build_menu_items(menu_items, action_items) ⇒ Object 



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# File 'lib/ppcurses/menu/BaseMenu.rb', line 36

def build_menu_items(menu_items, action_items)
  @menu_items = []

  (0...menu_items.length).each { |i|
    menu_item = MenuItem.new(menu_items[i])
    unless action_items.nil?
      menu_item.target= action_items[i].method(:execute)
    end

    @menu_items.push(menu_item)
  }
end

#close ⇒ Object 



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# File 'lib/ppcurses/menu/BaseMenu.rb', line 83

def close
  @win.close
end

#create_window ⇒ Object 



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# File 'lib/ppcurses/menu/BaseMenu.rb', line 61

def create_window
  w_height = @menu_items.length + 4
  w_width = @max_menu_width + 4
  @win = PPCurses::Window.new(w_height,w_width,(Curses.lines-w_height) / 2, (Curses.cols-w_width)/2)
  @win.timeout=-1
end

#find_max_menu_width ⇒ Object 



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# File 'lib/ppcurses/menu/BaseMenu.rb', line 49

def find_max_menu_width
  @max_menu_width = 0
  (0...menu_items.length).each { |i|
    display = menu_items[i].display_string
    @max_menu_width = display.length if display.length > @max_menu_width
  }
end

#hide ⇒ Object 



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# File 'lib/ppcurses/menu/BaseMenu.rb', line 72

def hide
  @win.clear
  @win.refresh

  @sub_menu.hide if @sub_menu
end

#selected_menu_name ⇒ Object 



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# File 'lib/ppcurses/menu/BaseMenu.rb', line 79

def selected_menu_name
  @menu_items[@selection].title
end

#set_origin(point) ⇒ Object 



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# File 'lib/ppcurses/menu/BaseMenu.rb', line 57

def set_origin( point )
  @win.move_to_point( point )
end

#set_sub_menu(menu) ⇒ Object 



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# File 'lib/ppcurses/menu/BaseMenu.rb', line 68

def set_sub_menu(menu)
  @sub_menu = menu
end