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0a9064fb MY |
1 | /* |
2 | * dialog.h -- common declarations for all dialog modules | |
3 | * | |
4 | * AUTHOR: Savio Lam (lam836@cs.cuhk.hk) | |
5 | * | |
5b8031cc | 6 | * SPDX-License-Identifier: GPL-2.0+ |
0a9064fb MY |
7 | */ |
8 | ||
9 | #include <sys/types.h> | |
10 | #include <fcntl.h> | |
11 | #include <unistd.h> | |
12 | #include <ctype.h> | |
13 | #include <stdlib.h> | |
14 | #include <string.h> | |
15 | #include <stdbool.h> | |
16 | ||
17 | #ifndef KBUILD_NO_NLS | |
18 | # include <libintl.h> | |
19 | #else | |
20 | # define gettext(Msgid) ((const char *) (Msgid)) | |
21 | #endif | |
22 | ||
23 | #ifdef __sun__ | |
24 | #define CURS_MACROS | |
25 | #endif | |
26 | #include CURSES_LOC | |
27 | ||
28 | /* | |
29 | * Colors in ncurses 1.9.9e do not work properly since foreground and | |
30 | * background colors are OR'd rather than separately masked. This version | |
31 | * of dialog was hacked to work with ncurses 1.9.9e, making it incompatible | |
32 | * with standard curses. The simplest fix (to make this work with standard | |
33 | * curses) uses the wbkgdset() function, not used in the original hack. | |
34 | * Turn it off if we're building with 1.9.9e, since it just confuses things. | |
35 | */ | |
36 | #if defined(NCURSES_VERSION) && defined(_NEED_WRAP) && !defined(GCC_PRINTFLIKE) | |
37 | #define OLD_NCURSES 1 | |
38 | #undef wbkgdset | |
39 | #define wbkgdset(w,p) /*nothing */ | |
40 | #else | |
41 | #define OLD_NCURSES 0 | |
42 | #endif | |
43 | ||
44 | #define TR(params) _tracef params | |
45 | ||
46 | #define KEY_ESC 27 | |
47 | #define TAB 9 | |
48 | #define MAX_LEN 2048 | |
49 | #define BUF_SIZE (10*1024) | |
50 | #define MIN(x,y) (x < y ? x : y) | |
51 | #define MAX(x,y) (x > y ? x : y) | |
52 | ||
53 | #ifndef ACS_ULCORNER | |
54 | #define ACS_ULCORNER '+' | |
55 | #endif | |
56 | #ifndef ACS_LLCORNER | |
57 | #define ACS_LLCORNER '+' | |
58 | #endif | |
59 | #ifndef ACS_URCORNER | |
60 | #define ACS_URCORNER '+' | |
61 | #endif | |
62 | #ifndef ACS_LRCORNER | |
63 | #define ACS_LRCORNER '+' | |
64 | #endif | |
65 | #ifndef ACS_HLINE | |
66 | #define ACS_HLINE '-' | |
67 | #endif | |
68 | #ifndef ACS_VLINE | |
69 | #define ACS_VLINE '|' | |
70 | #endif | |
71 | #ifndef ACS_LTEE | |
72 | #define ACS_LTEE '+' | |
73 | #endif | |
74 | #ifndef ACS_RTEE | |
75 | #define ACS_RTEE '+' | |
76 | #endif | |
77 | #ifndef ACS_UARROW | |
78 | #define ACS_UARROW '^' | |
79 | #endif | |
80 | #ifndef ACS_DARROW | |
81 | #define ACS_DARROW 'v' | |
82 | #endif | |
83 | ||
84 | /* error return codes */ | |
85 | #define ERRDISPLAYTOOSMALL (KEY_MAX + 1) | |
86 | ||
87 | /* | |
88 | * Color definitions | |
89 | */ | |
90 | struct dialog_color { | |
91 | chtype atr; /* Color attribute */ | |
92 | int fg; /* foreground */ | |
93 | int bg; /* background */ | |
94 | int hl; /* highlight this item */ | |
95 | }; | |
96 | ||
97 | struct subtitle_list { | |
98 | struct subtitle_list *next; | |
99 | const char *text; | |
100 | }; | |
101 | ||
102 | struct dialog_info { | |
103 | const char *backtitle; | |
104 | struct subtitle_list *subtitles; | |
105 | struct dialog_color screen; | |
106 | struct dialog_color shadow; | |
107 | struct dialog_color dialog; | |
108 | struct dialog_color title; | |
109 | struct dialog_color border; | |
110 | struct dialog_color button_active; | |
111 | struct dialog_color button_inactive; | |
112 | struct dialog_color button_key_active; | |
113 | struct dialog_color button_key_inactive; | |
114 | struct dialog_color button_label_active; | |
115 | struct dialog_color button_label_inactive; | |
116 | struct dialog_color inputbox; | |
117 | struct dialog_color inputbox_border; | |
118 | struct dialog_color searchbox; | |
119 | struct dialog_color searchbox_title; | |
120 | struct dialog_color searchbox_border; | |
121 | struct dialog_color position_indicator; | |
122 | struct dialog_color menubox; | |
123 | struct dialog_color menubox_border; | |
124 | struct dialog_color item; | |
125 | struct dialog_color item_selected; | |
126 | struct dialog_color tag; | |
127 | struct dialog_color tag_selected; | |
128 | struct dialog_color tag_key; | |
129 | struct dialog_color tag_key_selected; | |
130 | struct dialog_color check; | |
131 | struct dialog_color check_selected; | |
132 | struct dialog_color uarrow; | |
133 | struct dialog_color darrow; | |
134 | }; | |
135 | ||
136 | /* | |
137 | * Global variables | |
138 | */ | |
139 | extern struct dialog_info dlg; | |
140 | extern char dialog_input_result[]; | |
141 | extern int saved_x, saved_y; /* Needed in signal handler in mconf.c */ | |
142 | ||
143 | /* | |
144 | * Function prototypes | |
145 | */ | |
146 | ||
147 | /* item list as used by checklist and menubox */ | |
148 | void item_reset(void); | |
149 | void item_make(const char *fmt, ...); | |
150 | void item_add_str(const char *fmt, ...); | |
151 | void item_set_tag(char tag); | |
152 | void item_set_data(void *p); | |
153 | void item_set_selected(int val); | |
154 | int item_activate_selected(void); | |
155 | void *item_data(void); | |
156 | char item_tag(void); | |
157 | ||
158 | /* item list manipulation for lxdialog use */ | |
159 | #define MAXITEMSTR 200 | |
160 | struct dialog_item { | |
ad618992 | 161 | char str[MAXITEMSTR]; /* prompt displayed */ |
0a9064fb MY |
162 | char tag; |
163 | void *data; /* pointer to menu item - used by menubox+checklist */ | |
164 | int selected; /* Set to 1 by dialog_*() function if selected. */ | |
165 | }; | |
166 | ||
167 | /* list of lialog_items */ | |
168 | struct dialog_list { | |
169 | struct dialog_item node; | |
170 | struct dialog_list *next; | |
171 | }; | |
172 | ||
173 | extern struct dialog_list *item_cur; | |
174 | extern struct dialog_list item_nil; | |
175 | extern struct dialog_list *item_head; | |
176 | ||
177 | int item_count(void); | |
178 | void item_set(int n); | |
179 | int item_n(void); | |
180 | const char *item_str(void); | |
181 | int item_is_selected(void); | |
182 | int item_is_tag(char tag); | |
183 | #define item_foreach() \ | |
184 | for (item_cur = item_head ? item_head: item_cur; \ | |
185 | item_cur && (item_cur != &item_nil); item_cur = item_cur->next) | |
186 | ||
187 | /* generic key handlers */ | |
188 | int on_key_esc(WINDOW *win); | |
189 | int on_key_resize(void); | |
190 | ||
191 | /* minimum (re)size values */ | |
192 | #define CHECKLIST_HEIGTH_MIN 6 /* For dialog_checklist() */ | |
193 | #define CHECKLIST_WIDTH_MIN 6 | |
194 | #define INPUTBOX_HEIGTH_MIN 2 /* For dialog_inputbox() */ | |
195 | #define INPUTBOX_WIDTH_MIN 2 | |
196 | #define MENUBOX_HEIGTH_MIN 15 /* For dialog_menu() */ | |
197 | #define MENUBOX_WIDTH_MIN 65 | |
198 | #define TEXTBOX_HEIGTH_MIN 8 /* For dialog_textbox() */ | |
199 | #define TEXTBOX_WIDTH_MIN 8 | |
200 | #define YESNO_HEIGTH_MIN 4 /* For dialog_yesno() */ | |
201 | #define YESNO_WIDTH_MIN 4 | |
202 | #define WINDOW_HEIGTH_MIN 19 /* For init_dialog() */ | |
203 | #define WINDOW_WIDTH_MIN 80 | |
204 | ||
205 | int init_dialog(const char *backtitle); | |
206 | void set_dialog_backtitle(const char *backtitle); | |
207 | void set_dialog_subtitles(struct subtitle_list *subtitles); | |
208 | void end_dialog(int x, int y); | |
209 | void attr_clear(WINDOW * win, int height, int width, chtype attr); | |
210 | void dialog_clear(void); | |
211 | void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x); | |
212 | void print_button(WINDOW * win, const char *label, int y, int x, int selected); | |
213 | void print_title(WINDOW *dialog, const char *title, int width); | |
214 | void draw_box(WINDOW * win, int y, int x, int height, int width, chtype box, | |
215 | chtype border); | |
216 | void draw_shadow(WINDOW * win, int y, int x, int height, int width); | |
217 | ||
218 | int first_alpha(const char *string, const char *exempt); | |
219 | int dialog_yesno(const char *title, const char *prompt, int height, int width); | |
220 | int dialog_msgbox(const char *title, const char *prompt, int height, | |
221 | int width, int pause); | |
222 | ||
223 | ||
224 | typedef void (*update_text_fn)(char *buf, size_t start, size_t end, void | |
225 | *_data); | |
226 | int dialog_textbox(const char *title, char *tbuf, int initial_height, | |
227 | int initial_width, int *keys, int *_vscroll, int *_hscroll, | |
228 | update_text_fn update_text, void *data); | |
229 | int dialog_menu(const char *title, const char *prompt, | |
230 | const void *selected, int *s_scroll); | |
231 | int dialog_checklist(const char *title, const char *prompt, int height, | |
232 | int width, int list_height); | |
233 | int dialog_inputbox(const char *title, const char *prompt, int height, | |
234 | int width, const char *init); | |
235 | ||
236 | /* | |
237 | * This is the base for fictitious keys, which activate | |
238 | * the buttons. | |
239 | * | |
240 | * Mouse-generated keys are the following: | |
241 | * -- the first 32 are used as numbers, in addition to '0'-'9' | |
242 | * -- the lowercase are used to signal mouse-enter events (M_EVENT + 'o') | |
243 | * -- uppercase chars are used to invoke the button (M_EVENT + 'O') | |
244 | */ | |
245 | #define M_EVENT (KEY_MAX+1) |