text_dialog.hpp

本程序是主要是扫雷

/*     Copyright(c) Ben Bear 2003-2004  */

//  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.

#ifndef __text_dialog_hpp
#define __text_dialog_hpp

#include <curses.h>

#include "buf_text.hpp"

class text_dialog
{
private:
  static const int TEXT_WIDTH = 76;
  static const int TEXT_HEIGHT = 20;
private:
  buf_text buf;

  WINDOW *dialog;
  int dlg_h, dlg_w;

  const char* dlg_name;

  WINDOW *win_text;
  WINDOW *win_btn;
  int ok_x;

  short pair_f, pair_b;
private:
  bool new_dialog ();
  void del_dialog ();

  bool show ();
  void page_show ();
  void per_show ();
public:
  text_dialog (const char* name, const char* text)
    : dlg_name(name), buf(text, TEXT_HEIGHT, TEXT_WIDTH)
  {
    if (new_dialog () == false)
      return;

    show ();

    del_dialog ();
  }
};

bool
text_dialog::new_dialog ()
{
  dlg_h = TEXT_HEIGHT + 3;
  dlg_w = TEXT_WIDTH + 2;
  int scr_h, scr_w;
  getmaxyx (stdscr, scr_h, scr_w);
  dialog = newwin (dlg_h, dlg_w,
		   (scr_h - dlg_h)/2, (scr_w - dlg_w)/2);
  keypad (dialog, TRUE);
  wattron (dialog, A_REVERSE);
  box (dialog, 0, 0);
  
  win_text = derwin (dialog, TEXT_HEIGHT, TEXT_WIDTH, 1, 1);
  keypad (win_text, TRUE);
  wattron (win_text, A_REVERSE);

  page_show ();

  win_btn = derwin (dialog, 1, TEXT_WIDTH, TEXT_HEIGHT+1, 1);
  keypad (win_btn, TRUE);
  
  if (has_colors())
    {
      pair_content (1, &pair_f, &pair_b);
      init_pair (1, COLOR_GREEN, COLOR_BLUE);
      wattron (win_btn, COLOR_PAIR(1));
    }
  wattroff (win_btn, A_REVERSE);
  char tmp[10];
  ok_x = TEXT_WIDTH/3*2;
  mvwhline (win_btn, 0, 0, '-', ok_x);
  sprintf (tmp, ": %%s :");
  mvwprintw (win_btn, 0, 1, tmp, dlg_name);
  sprintf (tmp, "%%%ds", dlg_w-2-4-strlen(dlg_name));
  wprintw (win_btn, tmp, "");

  wattron (win_btn, A_REVERSE);
  mvwprintw (win_btn, 0, ok_x, "< OK >");
  wattroff (win_btn, A_REVERSE);
  
  per_show ();

  touchwin (dialog);
  wrefresh (dialog);

  return true;
}

void
text_dialog::del_dialog ()
{
  if (has_colors())
    init_pair (1, pair_f, pair_b);
  delwin (win_btn);
  delwin (win_text);

  wclear (dialog);
  wrefresh (dialog);
  delwin (dialog);
}

bool
text_dialog::show ()
{
  int ch;
  do
    {
      wmove (dialog, TEXT_HEIGHT+1, ok_x+3);
      ch = wgetch (dialog);
      int dir;
      switch (ch)
	{
	case KEY_UP:
	  dir = buf_text::BUF_LINE_UP;
	  break;
	case KEY_DOWN:
	  dir = buf_text::BUF_LINE_DOWN;
	  break;
	case KEY_LEFT:
	case KEY_PPAGE:
	  dir = buf_text::BUF_PAGE_UP;
	  break;
	case KEY_RIGHT:
	case KEY_NPAGE:
	  dir = buf_text::BUF_PAGE_DOWN;
	  break;
	case KEY_HOME:
	  dir = buf_text::BUF_BEGIN;
	  break;
	case KEY_END:
	  dir = buf_text::BUF_END;
	  break;
	default:
	  continue;
	  break;
	}
      if (buf.move (dir) == false)
	beep ();
      else
	{
	  page_show ();
	  per_show ();
	  touchwin (dialog);
	  wrefresh (dialog);
	}
    }
  while (ch != '\n');
  return true;
}

void
text_dialog::page_show ()
{
  const char* *page = new (const char*)[TEXT_HEIGHT];
  int lines = buf.get_cur_page (page);
  char tmp[10];
  sprintf (tmp, "%%-%ds", TEXT_WIDTH);
  int i = 0;
  for (; i < lines; ++i)
    mvwprintw (win_text, i, 0, tmp, page[i]);
  for (; i < TEXT_HEIGHT; ++i)
    mvwprintw (win_text, i, 0, tmp, "");
  delete[] page;
}

void
text_dialog::per_show ()
{
  int x = TEXT_WIDTH - 10;
  int per = buf.get_per ();
  char str[12];
  if (per == -1)
    sprintf (str, "- Top -");
  else if (per == 100)
    sprintf (str, "- Bottom -");
  else
    sprintf (str, "- %d%% -", per);
  mvwprintw (win_btn, 0, x, "%-10s", str);
}

#endif