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1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * dialog.h -- common declarations for all dialog modules
4 *
5 * AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
6 */
7
8#include <sys/types.h>
9#include <fcntl.h>
10#include <unistd.h>
11#include <ctype.h>
12#include <stdlib.h>
13#include <string.h>
14#include <stdbool.h>
15
16#ifdef __sun__
17#define CURS_MACROS
18#endif
19#include <ncurses.h>
20
21/*
22 * Colors in ncurses 1.9.9e do not work properly since foreground and
23 * background colors are OR'd rather than separately masked. This version
24 * of dialog was hacked to work with ncurses 1.9.9e, making it incompatible
25 * with standard curses. The simplest fix (to make this work with standard
26 * curses) uses the wbkgdset() function, not used in the original hack.
27 * Turn it off if we're building with 1.9.9e, since it just confuses things.
28 */
29#if defined(NCURSES_VERSION) && defined(_NEED_WRAP) && !defined(GCC_PRINTFLIKE)
30#define OLD_NCURSES 1
31#undef wbkgdset
32#define wbkgdset(w,p) /*nothing */
33#else
34#define OLD_NCURSES 0
35#endif
36
37#define TR(params) _tracef params
38
39#define KEY_ESC 27
40#define TAB 9
41#define MAX_LEN 2048
42#define BUF_SIZE (10*1024)
43#define MIN(x,y) (x < y ? x : y)
44#define MAX(x,y) (x > y ? x : y)
45
46#ifndef ACS_ULCORNER
47#define ACS_ULCORNER '+'
48#endif
49#ifndef ACS_LLCORNER
50#define ACS_LLCORNER '+'
51#endif
52#ifndef ACS_URCORNER
53#define ACS_URCORNER '+'
54#endif
55#ifndef ACS_LRCORNER
56#define ACS_LRCORNER '+'
57#endif
58#ifndef ACS_HLINE
59#define ACS_HLINE '-'
60#endif
61#ifndef ACS_VLINE
62#define ACS_VLINE '|'
63#endif
64#ifndef ACS_LTEE
65#define ACS_LTEE '+'
66#endif
67#ifndef ACS_RTEE
68#define ACS_RTEE '+'
69#endif
70#ifndef ACS_UARROW
71#define ACS_UARROW '^'
72#endif
73#ifndef ACS_DARROW
74#define ACS_DARROW 'v'
75#endif
76
77/* error return codes */
78#define ERRDISPLAYTOOSMALL (KEY_MAX + 1)
79
80/*
81 * Color definitions
82 */
83struct dialog_color {
84 chtype atr; /* Color attribute */
85 int fg; /* foreground */
86 int bg; /* background */
87 int hl; /* highlight this item */
88};
89
90struct subtitle_list {
91 struct subtitle_list *next;
92 const char *text;
93};
94
95struct dialog_info {
96 const char *backtitle;
97 struct subtitle_list *subtitles;
98 struct dialog_color screen;
99 struct dialog_color shadow;
100 struct dialog_color dialog;
101 struct dialog_color title;
102 struct dialog_color border;
103 struct dialog_color button_active;
104 struct dialog_color button_inactive;
105 struct dialog_color button_key_active;
106 struct dialog_color button_key_inactive;
107 struct dialog_color button_label_active;
108 struct dialog_color button_label_inactive;
109 struct dialog_color inputbox;
110 struct dialog_color inputbox_border;
111 struct dialog_color searchbox;
112 struct dialog_color searchbox_title;
113 struct dialog_color searchbox_border;
114 struct dialog_color position_indicator;
115 struct dialog_color menubox;
116 struct dialog_color menubox_border;
117 struct dialog_color item;
118 struct dialog_color item_selected;
119 struct dialog_color tag;
120 struct dialog_color tag_selected;
121 struct dialog_color tag_key;
122 struct dialog_color tag_key_selected;
123 struct dialog_color check;
124 struct dialog_color check_selected;
125 struct dialog_color uarrow;
126 struct dialog_color darrow;
127};
128
129/*
130 * Global variables
131 */
132extern struct dialog_info dlg;
133extern char dialog_input_result[];
134extern int saved_x, saved_y; /* Needed in signal handler in mconf.c */
135
136/*
137 * Function prototypes
138 */
139
140/* item list as used by checklist and menubox */
141void item_reset(void);
142void item_make(const char *fmt, ...);
143void item_add_str(const char *fmt, ...);
144void item_set_tag(char tag);
145void item_set_data(void *p);
146void item_set_selected(int val);
147int item_activate_selected(void);
148void *item_data(void);
149char item_tag(void);
150
151/* item list manipulation for lxdialog use */
152#define MAXITEMSTR 200
153struct dialog_item {
154 char str[MAXITEMSTR]; /* prompt displayed */
155 char tag;
156 void *data; /* pointer to menu item - used by menubox+checklist */
157 int selected; /* Set to 1 by dialog_*() function if selected. */
158};
159
160/* list of lialog_items */
161struct dialog_list {
162 struct dialog_item node;
163 struct dialog_list *next;
164};
165
166extern struct dialog_list *item_cur;
167extern struct dialog_list item_nil;
168extern struct dialog_list *item_head;
169
170int item_count(void);
171void item_set(int n);
172int item_n(void);
173const char *item_str(void);
174int item_is_selected(void);
175int item_is_tag(char tag);
176#define item_foreach() \
177 for (item_cur = item_head ? item_head: item_cur; \
178 item_cur && (item_cur != &item_nil); item_cur = item_cur->next)
179
180/* generic key handlers */
181int on_key_esc(WINDOW *win);
182int on_key_resize(void);
183
184/* minimum (re)size values */
185#define CHECKLIST_HEIGTH_MIN 6 /* For dialog_checklist() */
186#define CHECKLIST_WIDTH_MIN 6
187#define INPUTBOX_HEIGTH_MIN 2 /* For dialog_inputbox() */
188#define INPUTBOX_WIDTH_MIN 2
189#define MENUBOX_HEIGTH_MIN 15 /* For dialog_menu() */
190#define MENUBOX_WIDTH_MIN 65
191#define TEXTBOX_HEIGTH_MIN 8 /* For dialog_textbox() */
192#define TEXTBOX_WIDTH_MIN 8
193#define YESNO_HEIGTH_MIN 4 /* For dialog_yesno() */
194#define YESNO_WIDTH_MIN 4
195#define WINDOW_HEIGTH_MIN 19 /* For init_dialog() */
196#define WINDOW_WIDTH_MIN 80
197
198int init_dialog(const char *backtitle);
199void set_dialog_backtitle(const char *backtitle);
200void set_dialog_subtitles(struct subtitle_list *subtitles);
201void end_dialog(int x, int y);
202void attr_clear(WINDOW * win, int height, int width, chtype attr);
203void dialog_clear(void);
204void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x);
205void print_button(WINDOW * win, const char *label, int y, int x, int selected);
206void print_title(WINDOW *dialog, const char *title, int width);
207void draw_box(WINDOW * win, int y, int x, int height, int width, chtype box,
208 chtype border);
209void draw_shadow(WINDOW * win, int y, int x, int height, int width);
210
211int first_alpha(const char *string, const char *exempt);
212int dialog_yesno(const char *title, const char *prompt, int height, int width);
213int dialog_msgbox(const char *title, const char *prompt, int height,
214 int width, int pause);
215
216
217typedef void (*update_text_fn)(char *buf, size_t start, size_t end, void
218 *_data);
219int dialog_textbox(const char *title, char *tbuf, int initial_height,
220 int initial_width, int *keys, int *_vscroll, int *_hscroll,
221 update_text_fn update_text, void *data);
222int dialog_menu(const char *title, const char *prompt,
223 const void *selected, int *s_scroll);
224int dialog_checklist(const char *title, const char *prompt, int height,
225 int width, int list_height);
226int dialog_inputbox(const char *title, const char *prompt, int height,
227 int width, const char *init);
228
229/*
230 * This is the base for fictitious keys, which activate
231 * the buttons.
232 *
233 * Mouse-generated keys are the following:
234 * -- the first 32 are used as numbers, in addition to '0'-'9'
235 * -- the lowercase are used to signal mouse-enter events (M_EVENT + 'o')
236 * -- uppercase chars are used to invoke the button (M_EVENT + 'O')
237 */
238#define M_EVENT (KEY_MAX+1)
1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * dialog.h -- common declarations for all dialog modules
4 *
5 * AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
6 */
7
8#include <sys/types.h>
9#include <fcntl.h>
10#include <unistd.h>
11#include <ctype.h>
12#include <stdlib.h>
13#include <string.h>
14#include <stdbool.h>
15
16#ifdef __sun__
17#define CURS_MACROS
18#endif
19#include <ncurses.h>
20
21/*
22 * Colors in ncurses 1.9.9e do not work properly since foreground and
23 * background colors are OR'd rather than separately masked. This version
24 * of dialog was hacked to work with ncurses 1.9.9e, making it incompatible
25 * with standard curses. The simplest fix (to make this work with standard
26 * curses) uses the wbkgdset() function, not used in the original hack.
27 * Turn it off if we're building with 1.9.9e, since it just confuses things.
28 */
29#if defined(NCURSES_VERSION) && defined(_NEED_WRAP) && !defined(GCC_PRINTFLIKE)
30#define OLD_NCURSES 1
31#undef wbkgdset
32#define wbkgdset(w,p) /*nothing */
33#else
34#define OLD_NCURSES 0
35#endif
36
37#define TR(params) _tracef params
38
39#define KEY_ESC 27
40#define TAB 9
41#define MAX_LEN 2048
42#define BUF_SIZE (10*1024)
43#define MIN(x,y) (x < y ? x : y)
44#define MAX(x,y) (x > y ? x : y)
45
46#ifndef ACS_ULCORNER
47#define ACS_ULCORNER '+'
48#endif
49#ifndef ACS_LLCORNER
50#define ACS_LLCORNER '+'
51#endif
52#ifndef ACS_URCORNER
53#define ACS_URCORNER '+'
54#endif
55#ifndef ACS_LRCORNER
56#define ACS_LRCORNER '+'
57#endif
58#ifndef ACS_HLINE
59#define ACS_HLINE '-'
60#endif
61#ifndef ACS_VLINE
62#define ACS_VLINE '|'
63#endif
64#ifndef ACS_LTEE
65#define ACS_LTEE '+'
66#endif
67#ifndef ACS_RTEE
68#define ACS_RTEE '+'
69#endif
70#ifndef ACS_UARROW
71#define ACS_UARROW '^'
72#endif
73#ifndef ACS_DARROW
74#define ACS_DARROW 'v'
75#endif
76
77/* error return codes */
78#define ERRDISPLAYTOOSMALL (KEY_MAX + 1)
79
80/*
81 * Color definitions
82 */
83struct dialog_color {
84 chtype atr; /* Color attribute */
85 int fg; /* foreground */
86 int bg; /* background */
87 int hl; /* highlight this item */
88};
89
90struct subtitle_list {
91 struct subtitle_list *next;
92 const char *text;
93};
94
95struct dialog_info {
96 const char *backtitle;
97 struct subtitle_list *subtitles;
98 struct dialog_color screen;
99 struct dialog_color shadow;
100 struct dialog_color dialog;
101 struct dialog_color title;
102 struct dialog_color border;
103 struct dialog_color button_active;
104 struct dialog_color button_inactive;
105 struct dialog_color button_key_active;
106 struct dialog_color button_key_inactive;
107 struct dialog_color button_label_active;
108 struct dialog_color button_label_inactive;
109 struct dialog_color inputbox;
110 struct dialog_color inputbox_border;
111 struct dialog_color searchbox;
112 struct dialog_color searchbox_title;
113 struct dialog_color searchbox_border;
114 struct dialog_color position_indicator;
115 struct dialog_color menubox;
116 struct dialog_color menubox_border;
117 struct dialog_color item;
118 struct dialog_color item_selected;
119 struct dialog_color tag;
120 struct dialog_color tag_selected;
121 struct dialog_color tag_key;
122 struct dialog_color tag_key_selected;
123 struct dialog_color check;
124 struct dialog_color check_selected;
125 struct dialog_color uarrow;
126 struct dialog_color darrow;
127};
128
129/*
130 * Global variables
131 */
132extern struct dialog_info dlg;
133extern char dialog_input_result[];
134extern int saved_x, saved_y; /* Needed in signal handler in mconf.c */
135
136/*
137 * Function prototypes
138 */
139
140/* item list as used by checklist and menubox */
141void item_reset(void);
142void item_make(const char *fmt, ...);
143void item_add_str(const char *fmt, ...);
144void item_set_tag(char tag);
145void item_set_data(void *p);
146void item_set_selected(int val);
147int item_activate_selected(void);
148void *item_data(void);
149char item_tag(void);
150
151/* item list manipulation for lxdialog use */
152#define MAXITEMSTR 200
153struct dialog_item {
154 char str[MAXITEMSTR]; /* prompt displayed */
155 char tag;
156 void *data; /* pointer to menu item - used by menubox+checklist */
157 int selected; /* Set to 1 by dialog_*() function if selected. */
158};
159
160/* list of lialog_items */
161struct dialog_list {
162 struct dialog_item node;
163 struct dialog_list *next;
164};
165
166extern struct dialog_list *item_cur;
167extern struct dialog_list item_nil;
168extern struct dialog_list *item_head;
169
170int item_count(void);
171void item_set(int n);
172int item_n(void);
173const char *item_str(void);
174int item_is_selected(void);
175int item_is_tag(char tag);
176#define item_foreach() \
177 for (item_cur = item_head ? item_head: item_cur; \
178 item_cur && (item_cur != &item_nil); item_cur = item_cur->next)
179
180/* generic key handlers */
181int on_key_esc(WINDOW *win);
182int on_key_resize(void);
183
184/* minimum (re)size values */
185#define CHECKLIST_HEIGTH_MIN 6 /* For dialog_checklist() */
186#define CHECKLIST_WIDTH_MIN 6
187#define INPUTBOX_HEIGTH_MIN 2 /* For dialog_inputbox() */
188#define INPUTBOX_WIDTH_MIN 2
189#define MENUBOX_HEIGTH_MIN 15 /* For dialog_menu() */
190#define MENUBOX_WIDTH_MIN 65
191#define TEXTBOX_HEIGTH_MIN 8 /* For dialog_textbox() */
192#define TEXTBOX_WIDTH_MIN 8
193#define YESNO_HEIGTH_MIN 4 /* For dialog_yesno() */
194#define YESNO_WIDTH_MIN 4
195#define WINDOW_HEIGTH_MIN 19 /* For init_dialog() */
196#define WINDOW_WIDTH_MIN 80
197
198int init_dialog(const char *backtitle);
199void set_dialog_backtitle(const char *backtitle);
200void set_dialog_subtitles(struct subtitle_list *subtitles);
201void end_dialog(int x, int y);
202void attr_clear(WINDOW * win, int height, int width, chtype attr);
203void dialog_clear(void);
204void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x);
205void print_button(WINDOW * win, const char *label, int y, int x, int selected);
206void print_title(WINDOW *dialog, const char *title, int width);
207void draw_box(WINDOW * win, int y, int x, int height, int width, chtype box,
208 chtype border);
209void draw_shadow(WINDOW * win, int y, int x, int height, int width);
210
211int first_alpha(const char *string, const char *exempt);
212int dialog_yesno(const char *title, const char *prompt, int height, int width);
213int dialog_msgbox(const char *title, const char *prompt, int height,
214 int width, int pause);
215
216
217typedef void (*update_text_fn)(char *buf, size_t start, size_t end, void
218 *_data);
219int dialog_textbox(const char *title, char *tbuf, int initial_height,
220 int initial_width, int *keys, int *_vscroll, int *_hscroll,
221 update_text_fn update_text, void *data);
222int dialog_menu(const char *title, const char *prompt,
223 const void *selected, int *s_scroll);
224int dialog_checklist(const char *title, const char *prompt, int height,
225 int width, int list_height);
226int dialog_inputbox(const char *title, const char *prompt, int height,
227 int width, const char *init);
228
229/*
230 * This is the base for fictitious keys, which activate
231 * the buttons.
232 *
233 * Mouse-generated keys are the following:
234 * -- the first 32 are used as numbers, in addition to '0'-'9'
235 * -- the lowercase are used to signal mouse-enter events (M_EVENT + 'o')
236 * -- uppercase chars are used to invoke the button (M_EVENT + 'O')
237 */
238#define M_EVENT (KEY_MAX+1)