Class: RubyCurses::PopupMenu

Inherits:
PMenu show all
Defined in:
lib/rbcurse/extras/widgets/rpopupmenu.rb

Instance Attribute Summary

Attributes inherited from PMenu

#col, #current_menu, #enabled, #items, #panel, #parent, #row, #row_margin, #width, #window

Attributes inherited from PMenuItem

#accelerator, #col, #enabled, #mnemonic, #parent, #row, #width

Instance Method Summary collapse

Methods inherited from PMenu

#add, #add_separator, #array_width, #check_mnemonics, #clear_menus, #create_action_component, #create_window, #fire, #get_item, #handle_key, #highlight, #insert, #insert_separator, #on_enter, #on_leave, #remove, #repaint, #select_item, #select_next_item, #select_prev_item, #to_s

Methods inherited from PMenuItem

#command, #fire, #highlight, #on_enter, #on_leave, #repaint, #text, #to_s

Constructor Details

#initialize(text, &block) ⇒ PopupMenu

Returns a new instance of PopupMenu.



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# File 'lib/rbcurse/extras/widgets/rpopupmenu.rb', line 485

def initialize text, &block
  @row_margin = 0
  @@row = 0
  @@col = 0
  super
  instance_eval &block if block_given?
end

Instance Method Details

#destroy ⇒ Object 



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# File 'lib/rbcurse/extras/widgets/rpopupmenu.rb', line 524

def destroy
  $log.debug "DESTRY popup "
  @visible = false
  panel = @window.panel
  Ncurses::Panel.del_panel(panel.pointer) if !panel.nil?   
  @window.delwin if !@window.nil? # FFI
  @items.each do |item|
    item.destroy
  end
  @window = nil
end

#handle_keys ⇒ Object

popup



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# File 'lib/rbcurse/extras/widgets/rpopupmenu.rb', line 499

def handle_keys  # popup
  @toggle_key ||= 27 # default switch off with ESC, if nothing else defined
  begin
  catch(:menubarclose) do
  while((ch = @window.getchar()) != @toggle_key )
    case ch
    when -1
      next
    else
      ret = handle_key ch
      $log.debug " POPUP got #{ret} added 2009-01-21 18:18 "
      break if ret == :CLOSE
    end
    Ncurses::Panel.update_panels();
    Ncurses.doupdate();

    @window.wrefresh
  end
  end # catch
  ensure
    #ensure is required becos one can throw a :close
  @@menus = [] # added 2009-01-23 13:21 
  destroy  # Note that we destroy the menu bar upon exit
  end
end

#show(component, x, y) ⇒ Object 



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# File 'lib/rbcurse/extras/widgets/rpopupmenu.rb', line 492

def show component, x, y
  @component = component
  @@row = component.row
  @@col = component.col
  create_window
  handle_keys
end