/* panel.cc
 * This file is part of NDK++ library
 * Copyright (c) 2003,2004 by Stanislav Ievlev
 *
 * This file is covered by the GNU Library General Public License,
 * which should be included with libndk++ as the file COPYING.
 */
#include <ncurses/pen.hh>
#include <ndk++/palette.hh>

#include <ndk++/panel.hh>
#include <ndk++/application.hh>


ndk::panel::panel (panel *parent)
  : ncurses::panel (parent)
  , events_ (parent ? parent->events () : 0, this)
{
  events ()->on_system (ndk::slot (&panel::at_system, this));
}

/**
 * @todo add support for palette
 */
void
ndk::panel::draw ()
{
  ncurses::pen (*this).fill (palette::instance ()[colors::panel]);
}

int
ndk::panel::padding () const
{
  return 0;
}

void
ndk::panel::emit (int type)
{
  events_.emit (type);
}

ndk::engine *
ndk::panel::events ()
{
  return &events_;
}

void
ndk::panel::in_focus (panel &other)
{
  events_.in_focus (other.events ());
}

void
ndk::panel::focus ()
{
  if (parent ())
    {
      dynamic_cast<panel &> (*parent ()).focus ();
      dynamic_cast<panel &> (*parent ()).in_focus (*this);
    }
  else
    ndk::app ().in_focus (*this);
}

ndk::event::result
ndk::panel::at_system (const event &ev)
{
  if (!ev.sender_ && engine::enter_focus == ev.type_)
    {
      top ();
      return event::accepted;
    }
  return event::ignored;
}