akaros/scripts/kconfig/lxdialog/dialog.h
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   1/*
   2 *  dialog.h -- common declarations for all dialog modules
   3 *
   4 *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
   5 *
   6 *  This program is free software; you can redistribute it and/or
   7 *  modify it under the terms of the GNU General Public License
   8 *  as published by the Free Software Foundation; either version 2
   9 *  of the License, or (at your option) any later version.
  10 *
  11 *  This program is distributed in the hope that it will be useful,
  12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 *  GNU General Public License for more details.
  15 *
  16 *  You should have received a copy of the GNU General Public License
  17 *  along with this program; if not, write to the Free Software
  18 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21#include <sys/types.h>
  22#include <fcntl.h>
  23#include <unistd.h>
  24#include <ctype.h>
  25#include <stdlib.h>
  26#include <string.h>
  27#include <stdbool.h>
  28
  29#ifndef KBUILD_NO_NLS
  30# include <libintl.h>
  31#else
  32# define gettext(Msgid) ((const char *) (Msgid))
  33#endif
  34
  35#ifdef __sun__
  36#define CURS_MACROS
  37#endif
  38#include CURSES_LOC
  39
  40/*
  41 * Colors in ncurses 1.9.9e do not work properly since foreground and
  42 * background colors are OR'd rather than separately masked.  This version
  43 * of dialog was hacked to work with ncurses 1.9.9e, making it incompatible
  44 * with standard curses.  The simplest fix (to make this work with standard
  45 * curses) uses the wbkgdset() function, not used in the original hack.
  46 * Turn it off if we're building with 1.9.9e, since it just confuses things.
  47 */
  48#if defined(NCURSES_VERSION) && defined(_NEED_WRAP) && !defined(GCC_PRINTFLIKE)
  49#define OLD_NCURSES 1
  50#undef  wbkgdset
  51#define wbkgdset(w,p)           /*nothing */
  52#else
  53#define OLD_NCURSES 0
  54#endif
  55
  56#define TR(params) _tracef params
  57
  58#define KEY_ESC 27
  59#define TAB 9
  60#define MAX_LEN 2048
  61#define BUF_SIZE (10*1024)
  62#define MIN(x,y) (x < y ? x : y)
  63#define MAX(x,y) (x > y ? x : y)
  64
  65#ifndef ACS_ULCORNER
  66#define ACS_ULCORNER '+'
  67#endif
  68#ifndef ACS_LLCORNER
  69#define ACS_LLCORNER '+'
  70#endif
  71#ifndef ACS_URCORNER
  72#define ACS_URCORNER '+'
  73#endif
  74#ifndef ACS_LRCORNER
  75#define ACS_LRCORNER '+'
  76#endif
  77#ifndef ACS_HLINE
  78#define ACS_HLINE '-'
  79#endif
  80#ifndef ACS_VLINE
  81#define ACS_VLINE '|'
  82#endif
  83#ifndef ACS_LTEE
  84#define ACS_LTEE '+'
  85#endif
  86#ifndef ACS_RTEE
  87#define ACS_RTEE '+'
  88#endif
  89#ifndef ACS_UARROW
  90#define ACS_UARROW '^'
  91#endif
  92#ifndef ACS_DARROW
  93#define ACS_DARROW 'v'
  94#endif
  95
  96/* error return codes */
  97#define ERRDISPLAYTOOSMALL (KEY_MAX + 1)
  98
  99/*
 100 *   Color definitions
 101 */
 102struct dialog_color {
 103        chtype atr;     /* Color attribute */
 104        int fg;         /* foreground */
 105        int bg;         /* background */
 106        int hl;         /* highlight this item */
 107};
 108
 109struct dialog_info {
 110        const char *backtitle;
 111        struct dialog_color screen;
 112        struct dialog_color shadow;
 113        struct dialog_color dialog;
 114        struct dialog_color title;
 115        struct dialog_color border;
 116        struct dialog_color button_active;
 117        struct dialog_color button_inactive;
 118        struct dialog_color button_key_active;
 119        struct dialog_color button_key_inactive;
 120        struct dialog_color button_label_active;
 121        struct dialog_color button_label_inactive;
 122        struct dialog_color inputbox;
 123        struct dialog_color inputbox_border;
 124        struct dialog_color searchbox;
 125        struct dialog_color searchbox_title;
 126        struct dialog_color searchbox_border;
 127        struct dialog_color position_indicator;
 128        struct dialog_color menubox;
 129        struct dialog_color menubox_border;
 130        struct dialog_color item;
 131        struct dialog_color item_selected;
 132        struct dialog_color tag;
 133        struct dialog_color tag_selected;
 134        struct dialog_color tag_key;
 135        struct dialog_color tag_key_selected;
 136        struct dialog_color check;
 137        struct dialog_color check_selected;
 138        struct dialog_color uarrow;
 139        struct dialog_color darrow;
 140};
 141
 142/*
 143 * Global variables
 144 */
 145extern struct dialog_info dlg;
 146extern char dialog_input_result[];
 147extern int saved_x, saved_y;            /* Needed in signal handler in mconf.c */
 148
 149/*
 150 * Function prototypes
 151 */
 152
 153/* item list as used by checklist and menubox */
 154void item_reset(void);
 155void item_make(const char *fmt, ...);
 156void item_add_str(const char *fmt, ...);
 157void item_set_tag(char tag);
 158void item_set_data(void *p);
 159void item_set_selected(int val);
 160int item_activate_selected(void);
 161void *item_data(void);
 162char item_tag(void);
 163
 164/* item list manipulation for lxdialog use */
 165#define MAXITEMSTR 200
 166struct dialog_item {
 167        char str[MAXITEMSTR];   /* promtp displayed */
 168        char tag;
 169        void *data;     /* pointer to menu item - used by menubox+checklist */
 170        int selected;   /* Set to 1 by dialog_*() function if selected. */
 171};
 172
 173/* list of lialog_items */
 174struct dialog_list {
 175        struct dialog_item node;
 176        struct dialog_list *next;
 177};
 178
 179extern struct dialog_list *item_cur;
 180extern struct dialog_list item_nil;
 181extern struct dialog_list *item_head;
 182
 183int item_count(void);
 184void item_set(int n);
 185int item_n(void);
 186const char *item_str(void);
 187int item_is_selected(void);
 188int item_is_tag(char tag);
 189#define item_foreach() \
 190        for (item_cur = item_head ? item_head: item_cur; \
 191             item_cur && (item_cur != &item_nil); item_cur = item_cur->next)
 192
 193/* generic key handlers */
 194int on_key_esc(WINDOW *win);
 195int on_key_resize(void);
 196
 197int init_dialog(const char *backtitle);
 198void set_dialog_backtitle(const char *backtitle);
 199void end_dialog(int x, int y);
 200void attr_clear(WINDOW * win, int height, int width, chtype attr);
 201void dialog_clear(void);
 202void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x);
 203void print_button(WINDOW * win, const char *label, int y, int x, int selected);
 204void print_title(WINDOW *dialog, const char *title, int width);
 205void draw_box(WINDOW * win, int y, int x, int height, int width, chtype box,
 206              chtype border);
 207void draw_shadow(WINDOW * win, int y, int x, int height, int width);
 208
 209int first_alpha(const char *string, const char *exempt);
 210int dialog_yesno(const char *title, const char *prompt, int height, int width);
 211int dialog_msgbox(const char *title, const char *prompt, int height,
 212                  int width, int pause);
 213
 214
 215typedef void (*update_text_fn)(char *buf, size_t start, size_t end, void
 216                               *_data);
 217int dialog_textbox(const char *title, char *tbuf, int initial_height,
 218                   int initial_width, int *keys, int *_vscroll, int *_hscroll,
 219                   update_text_fn update_text, void *data);
 220int dialog_menu(const char *title, const char *prompt,
 221                const void *selected, int *s_scroll);
 222int dialog_checklist(const char *title, const char *prompt, int height,
 223                     int width, int list_height);
 224extern char dialog_input_result[];
 225int dialog_inputbox(const char *title, const char *prompt, int height,
 226                    int width, const char *init);
 227
 228/*
 229 * This is the base for fictitious keys, which activate
 230 * the buttons.
 231 *
 232 * Mouse-generated keys are the following:
 233 *   -- the first 32 are used as numbers, in addition to '0'-'9'
 234 *   -- the lowercase are used to signal mouse-enter events (M_EVENT + 'o')
 235 *   -- uppercase chars are used to invoke the button (M_EVENT + 'O')
 236 */
 237#define M_EVENT (KEY_MAX+1)
 238