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Linux kernel mirror (for testing)
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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[];
147
148/*
149 * Function prototypes
150 */
151
152/* item list as used by checklist and menubox */
153void item_reset(void);
154void item_make(const char *fmt, ...);
155void item_add_str(const char *fmt, ...);
156void item_set_tag(char tag);
157void item_set_data(void *p);
158void item_set_selected(int val);
159int item_activate_selected(void);
160void *item_data(void);
161char item_tag(void);
162
163/* item list manipulation for lxdialog use */
164#define MAXITEMSTR 200
165struct dialog_item {
166 char str[MAXITEMSTR]; /* promtp displayed */
167 char tag;
168 void *data; /* pointer to menu item - used by menubox+checklist */
169 int selected; /* Set to 1 by dialog_*() function if selected. */
170};
171
172/* list of lialog_items */
173struct dialog_list {
174 struct dialog_item node;
175 struct dialog_list *next;
176};
177
178extern struct dialog_list *item_cur;
179extern struct dialog_list item_nil;
180extern struct dialog_list *item_head;
181
182int item_count(void);
183void item_set(int n);
184int item_n(void);
185const char *item_str(void);
186int item_is_selected(void);
187int item_is_tag(char tag);
188#define item_foreach() \
189 for (item_cur = item_head ? item_head: item_cur; \
190 item_cur && (item_cur != &item_nil); item_cur = item_cur->next)
191
192/* generic key handlers */
193int on_key_esc(WINDOW *win);
194int on_key_resize(void);
195
196int init_dialog(const char *backtitle);
197void set_dialog_backtitle(const char *backtitle);
198void end_dialog(int x, int y);
199void attr_clear(WINDOW * win, int height, int width, chtype attr);
200void dialog_clear(void);
201void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x);
202void print_button(WINDOW * win, const char *label, int y, int x, int selected);
203void print_title(WINDOW *dialog, const char *title, int width);
204void draw_box(WINDOW * win, int y, int x, int height, int width, chtype box,
205 chtype border);
206void draw_shadow(WINDOW * win, int y, int x, int height, int width);
207
208int first_alpha(const char *string, const char *exempt);
209int dialog_yesno(const char *title, const char *prompt, int height, int width);
210int dialog_msgbox(const char *title, const char *prompt, int height,
211 int width, int pause);
212int dialog_textbox(const char *title, const char *file, int height, int width);
213int dialog_menu(const char *title, const char *prompt,
214 const void *selected, int *s_scroll);
215int dialog_checklist(const char *title, const char *prompt, int height,
216 int width, int list_height);
217extern char dialog_input_result[];
218int dialog_inputbox(const char *title, const char *prompt, int height,
219 int width, const char *init);
220
221/*
222 * This is the base for fictitious keys, which activate
223 * the buttons.
224 *
225 * Mouse-generated keys are the following:
226 * -- the first 32 are used as numbers, in addition to '0'-'9'
227 * -- the lowercase are used to signal mouse-enter events (M_EVENT + 'o')
228 * -- uppercase chars are used to invoke the button (M_EVENT + 'O')
229 */
230#define M_EVENT (KEY_MAX+1)