// rTorrent - BitTorrent client
// Copyright (C) 2005, Jari Sundell
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
// In addition, as a special exception, the copyright holders give
// permission to link the code of portions of this program with the
// OpenSSL library under certain conditions as described in each
// individual source file, and distribute linked combinations
// including the two.
//
// You must obey the GNU General Public License in all respects for
// all of the code used other than OpenSSL.  If you modify file(s)
// with this exception, you may extend this exception to your version
// of the file(s), but you are not obligated to do so.  If you do not
// wish to do so, delete this exception statement from your version.
// If you delete this exception statement from all source files in the
// program, then also delete it here.
//
// Contact:  Jari Sundell <jaris@ifi.uio.no>
//
//           Skomakerveien 33
//           3185 Skoppum, NORWAY

#ifndef RTORRENT_DISPLAY_CANVAS_H
#define RTORRENT_DISPLAY_CANVAS_H

#include <string>
#include <ncurses.h>

namespace display {

class Canvas {
public:
  Canvas(int x = 0, int y = 0, int width = 0, int height = 0) :
    m_window(newwin(height, width, y, x)) {}
  ~Canvas() { delwin(m_window); }

  void                refresh()                                               { wnoutrefresh(m_window); }
  static void         refresh_std()                                           { wnoutrefresh(stdscr); }
  void                redraw()                                                { redrawwin(m_window); }

  void                resize(int w, int h)                                    { wresize(m_window, h, w); }
  void                resize(int x, int y, int w, int h);

  int                 get_x()                                                 { int x, y; getyx(m_window, y, x); return x; }
  int                 get_y()                                                 { int x, y; getyx(m_window, y, x); return y; }
  int                 get_width()                                             { int x, y; getmaxyx(m_window, y, x); return x; }
  int                 get_height()                                            { int x, y; getmaxyx(m_window, y, x); return y; }

  chtype              get_background()                                        { return getbkgd(m_window); }
  void                set_background(chtype c)                                { return wbkgdset(m_window, c); }

  void                erase()                                                 { werase(m_window); }
  static void         erase_std()                                             { werase(stdscr); }

  void                print_border(chtype ls, chtype rs,
				   chtype ts, chtype bs,
				   chtype tl, chtype tr,
				   chtype bl, chtype br)                      { wborder(m_window, ls, rs, ts, bs, tl, tr, bl, br); }

  // The format string is non-const, but that will not be a problem
  // since the string shall always be a C string choosen at
  // compiletime. Might cause extra copying of the string?

  void                print(int x, int y, char* str)                          { mvwprintw(m_window, y, x, str); }

  template <typename A1>
  void                print(int x, int y, char* str, A1 a1)                   { mvwprintw(m_window, y, x, str, a1); }

  template <typename A1, typename A2>
  void                print(int x, int y, char* str, A1 a1, A2 a2)            { mvwprintw(m_window, y, x, str, a1, a2); }

  template <typename A1, typename A2, typename A3>
  void                print(int x, int y, char* str,
	                    A1 a1, A2 a2, A3 a3)                              { mvwprintw(m_window, y, x, str, a1, a2, a3); }

  template <typename A1, typename A2, typename A3, typename A4>
  void                print(int x, int y, char* str,
	                    A1 a1, A2 a2, A3 a3, A4 a4)                       { mvwprintw(m_window, y, x, str, a1, a2, a3, a4); }

  template <typename A1, typename A2, typename A3, typename A4, typename A5>
  void                print(int x, int y, char* str,
        	            A1 a1, A2 a2, A3 a3, A4 a4, A5 a5)                { mvwprintw(m_window, y, x, str, a1, a2, a3, a4, a5); }

  template <typename A1, typename A2, typename A3, typename A4, typename A5, typename A6>
  void                print(int x, int y, char* str,
			    A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6)         { mvwprintw(m_window, y, x, str, a1, a2, a3, a4, a5, a6); }

  template <typename A1, typename A2, typename A3, typename A4, typename A5, typename A6, typename A7>
  void                print(int x, int y, char* str,
               	            A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7)  { mvwprintw(m_window, y, x, str, a1, a2, a3, a4, a5, a6, a7); }

  template <typename A1, typename A2, typename A3, typename A4, typename A5, typename A6, typename A7, typename A8>
  void                print(int x, int y, char* str,
               	            A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8) { mvwprintw(m_window, y, x, str, a1, a2, a3, a4, a5, a6, a7, a8); }

  void                set_attr(int x, int y, int n, int attr, int color)      { mvwchgat(m_window, y, x, n, attr, color, NULL); }

  // Initialize stdscr.
  static void         initialize();
  static void         cleanup();

  static int          get_screen_width()                                      { int x, y; getmaxyx(stdscr, y, x); return x; }
  static int          get_screen_height()                                     { int x, y; getmaxyx(stdscr, y, x); return y; }

  static void         do_update()                                             { doupdate(); }

private:
  Canvas(const Canvas&);
  void operator = (const Canvas&);

  static bool         m_isInitialized;

  WINDOW*             m_window;
};

}

#endif