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/*
 *  dialog.h -- common declarations for all dialog modules
 *
 *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
 *
 *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
 
#ifdef CURSES_LOC
#include CURSES_LOC
 
/*
 * Colors in ncurses 1.9.9e do not work properly since foreground and
 * background colors are OR'd rather than separately masked.  This version
 * of dialog was hacked to work with ncurses 1.9.9e, making it incompatible
 * with standard curses.  The simplest fix (to make this work with standard
 * curses) uses the wbkgdset() function, not used in the original hack.
 * Turn it off if we're building with 1.9.9e, since it just confuses things.
 */
#if defined(NCURSES_VERSION) && defined(_NEED_WRAP) && !defined(GCC_PRINTFLIKE)
#define OLD_NCURSES 1
#undef  wbkgdset
#define wbkgdset(w,p) /*nothing*/
#else
#define OLD_NCURSES 0
#endif
 
#define TR(params) _tracef params
 
#define ESC 27
#define TAB 9
#define MAX_LEN 2048
#define BUF_SIZE (10*1024)
#define MIN(x,y) (x < y ? x : y)
#define MAX(x,y) (x > y ? x : y)
 
 
#ifndef ACS_ULCORNER
#define ACS_ULCORNER '+'
#endif
#ifndef ACS_LLCORNER
#define ACS_LLCORNER '+'
#endif
#ifndef ACS_URCORNER
#define ACS_URCORNER '+'
#endif
#ifndef ACS_LRCORNER
#define ACS_LRCORNER '+'
#endif
#ifndef ACS_HLINE
#define ACS_HLINE '-'
#endif
#ifndef ACS_VLINE
#define ACS_VLINE '|'
#endif
#ifndef ACS_LTEE
#define ACS_LTEE '+'
#endif
#ifndef ACS_RTEE
#define ACS_RTEE '+'
#endif
#ifndef ACS_UARROW
#define ACS_UARROW '^'
#endif
#ifndef ACS_DARROW
#define ACS_DARROW 'v'
#endif
 
/* 
 * Attribute names
 */
#define screen_attr                   attributes[0]
#define shadow_attr                   attributes[1]
#define dialog_attr                   attributes[2]
#define title_attr                    attributes[3]
#define border_attr                   attributes[4]
#define button_active_attr            attributes[5]
#define button_inactive_attr          attributes[6]
#define button_key_active_attr        attributes[7]
#define button_key_inactive_attr      attributes[8]
#define button_label_active_attr      attributes[9]
#define button_label_inactive_attr    attributes[10]
#define inputbox_attr                 attributes[11]
#define inputbox_border_attr          attributes[12]
#define searchbox_attr                attributes[13]
#define searchbox_title_attr          attributes[14]
#define searchbox_border_attr         attributes[15]
#define position_indicator_attr       attributes[16]
#define menubox_attr                  attributes[17]
#define menubox_border_attr           attributes[18]
#define item_attr                     attributes[19]
#define item_selected_attr            attributes[20]
#define tag_attr                      attributes[21]
#define tag_selected_attr             attributes[22]
#define tag_key_attr                  attributes[23]
#define tag_key_selected_attr         attributes[24]
#define check_attr                    attributes[25]
#define check_selected_attr           attributes[26]
#define uarrow_attr                   attributes[27]
#define darrow_attr                   attributes[28]
 
/* number of attributes */
#define ATTRIBUTE_COUNT               29
 
/*
 * Global variables
 */
extern bool use_colors;
 
extern chtype attributes[];
#endif
 
extern char *backtitle;
 
struct dialog_list_item {
	char *name;
	int namelen;
	char *tag;
	int selected; /* Set to 1 by dialog_*() function. */
};
 
/*
 * Function prototypes
 */
 
void init_dialog (void);
void end_dialog (void);
void dialog_clear (void);
#ifdef CURSES_LOC
void attr_clear (WINDOW * win, int height, int width, chtype attr);
void color_setup (void);
void print_autowrap (WINDOW * win, const char *prompt, int width, int y, int x);
void print_button (WINDOW * win, const char *label, int y, int x, int selected);
void draw_box (WINDOW * win, int y, int x, int height, int width, chtype box,
		chtype border);
void draw_shadow (WINDOW * win, int y, int x, int height, int width);
#endif
 
int first_alpha (const char *string, const char *exempt);
int dialog_yesno (const char *title, const char *prompt, int height, int width);
int dialog_msgbox (const char *title, const char *prompt, int height,
		int width, int pause);
int dialog_textbox (const char *title, const char *file, int height, int width);
int dialog_menu (const char *title, const char *prompt, int height, int width,
		int menu_height, const char *choice, int item_no, 
		struct dialog_list_item ** items);
int dialog_checklist (const char *title, const char *prompt, int height,
		int width, int list_height, int item_no,
		struct dialog_list_item ** items, int flag);
extern unsigned char dialog_input_result[];
int dialog_inputbox (const char *title, const char *prompt, int height,
		int width, const char *init);
 
struct dialog_list_item *first_sel_item(int item_no,
		struct dialog_list_item ** items);
 
/*
 * This is the base for fictitious keys, which activate
 * the buttons.
 *
 * Mouse-generated keys are the following:
 *   -- the first 32 are used as numbers, in addition to '0'-'9'
 *   -- the lowercase are used to signal mouse-enter events (M_EVENT + 'o')
 *   -- uppercase chars are used to invoke the button (M_EVENT + 'O')
 */
#ifdef CURSES_LOC
#define M_EVENT (KEY_MAX+1)
#endif
 
 
/*
 * The `flag' parameter in checklist is used to select between
 * radiolist and checklist
 */
#define FLAG_CHECK 1
#define FLAG_RADIO 0