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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>

#include <stdbool.h>

#ifdef __sun__

#define CURS_MACROS

#endif

#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 KEY_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

/* error return codes */

#define ERRDISPLAYTOOSMALL (KEY_MAX + 1)

/*

 *   Color definitions

 */

struct dialog_color {

        chtype atr;     /* Color attribute */

        int fg;         /* foreground */

        int bg;         /* background */

        int hl;         /* highlight this item */

};

struct dialog_info {

        const char *backtitle;

        struct dialog_color screen;

        struct dialog_color shadow;

        struct dialog_color dialog;

        struct dialog_color title;

        struct dialog_color border;

        struct dialog_color button_active;

        struct dialog_color button_inactive;

        struct dialog_color button_key_active;

        struct dialog_color button_key_inactive;

        struct dialog_color button_label_active;

        struct dialog_color button_label_inactive;

        struct dialog_color inputbox;

        struct dialog_color inputbox_border;

        struct dialog_color searchbox;

        struct dialog_color searchbox_title;

        struct dialog_color searchbox_border;

        struct dialog_color position_indicator;

        struct dialog_color menubox;

        struct dialog_color menubox_border;

        struct dialog_color item;

        struct dialog_color item_selected;

        struct dialog_color tag;

        struct dialog_color tag_selected;

        struct dialog_color tag_key;

        struct dialog_color tag_key_selected;

        struct dialog_color check;

        struct dialog_color check_selected;

        struct dialog_color uarrow;

        struct dialog_color darrow;

};

/*

 * Global variables

 */

extern struct dialog_info dlg;

extern char dialog_input_result[];

/*

 * Function prototypes

 */

/* item list as used by checklist and menubox */

void item_reset(void);

void item_make(const char *fmt, ...);

void item_add_str(const char *fmt, ...);

void item_set_tag(char tag);

void item_set_data(void *p);

void item_set_selected(int val);

int item_activate_selected(void);

void *item_data(void);

char item_tag(void);

/* item list manipulation for lxdialog use */

#define MAXITEMSTR 200

struct dialog_item {

        char str[MAXITEMSTR];   /* promtp displayed */

        char tag;

        void *data;     /* pointer to menu item - used by menubox+checklist */

        int selected;   /* Set to 1 by dialog_*() function if selected. */

};

/* list of lialog_items */

struct dialog_list {

        struct dialog_item node;

        struct dialog_list *next;

};

extern struct dialog_list *item_cur;

extern struct dialog_list item_nil;

extern struct dialog_list *item_head;

int item_count(void);

void item_set(int n);

int item_n(void);

const char *item_str(void);

int item_is_selected(void);

int item_is_tag(char tag);

#define item_foreach() \

        for (item_cur = item_head ? item_head: item_cur; \

             item_cur && (item_cur != &item_nil); item_cur = item_cur->next)

/* generic key handlers */

int on_key_esc(WINDOW *win);

int on_key_resize(void);

void init_dialog(const char *backtitle);

void set_dialog_backtitle(const char *backtitle);

void reset_dialog(void);

void end_dialog(void);

void attr_clear(WINDOW * win, int height, int width, chtype attr);

void dialog_clear(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 print_title(WINDOW *dialog, const char *title, int width);

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);

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,

                const void *selected, int *s_scroll);

int dialog_checklist(const char *title, const char *prompt, int height,

                     int width, int list_height);

extern char dialog_input_result[];

int dialog_inputbox(const char *title, const char *prompt, int height,

                    int width, const char *init);

/*

 * 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')

 */

#define M_EVENT (KEY_MAX+1)