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 */
102 struct dialog_color {
103 chtype atr; /* Color attribute */
104 int fg; /* foreground */
105 int bg; /* background */
106 int hl; /* highlight this item */
107 };
108
109 struct 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 */
145 extern struct dialog_info dlg;
146 extern char dialog_input_result[];
147
148 /*
149 * Function prototypes
150 */
151
152 /* item list as used by checklist and menubox */
153 void item_reset(void);
154 void item_make(const char *fmt, ...);
155 void item_add_str(const char *fmt, ...);
156 void item_set_tag(char tag);
157 void item_set_data(void *p);
158 void item_set_selected(int val);
159 int item_activate_selected(void);
160 void *item_data(void);
161 char item_tag(void);
162
163 /* item list manipulation for lxdialog use */
164 #define MAXITEMSTR 200
165 struct 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 */
173 struct dialog_list {
174 struct dialog_item node;
175 struct dialog_list *next;
176 };
177
178 extern struct dialog_list *item_cur;
179 extern struct dialog_list item_nil;
180 extern struct dialog_list *item_head;
181
182 int item_count(void);
183 void item_set(int n);
184 int item_n(void);
185 const char *item_str(void);
186 int item_is_selected(void);
187 int 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 */
193 int on_key_esc(WINDOW *win);
194 int on_key_resize(void);
195
196 int init_dialog(const char *backtitle);
197 void set_dialog_backtitle(const char *backtitle);
198 void end_dialog(int x, int y);
199 void attr_clear(WINDOW * win, int height, int width, chtype attr);
200 void dialog_clear(void);
201 void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x);
202 void print_button(WINDOW * win, const char *label, int y, int x, int selected);
203 void print_title(WINDOW *dialog, const char *title, int width);
204 void draw_box(WINDOW * win, int y, int x, int height, int width, chtype box,
205 chtype border);
206 void draw_shadow(WINDOW * win, int y, int x, int height, int width);
207
208 int first_alpha(const char *string, const char *exempt);
209 int dialog_yesno(const char *title, const char *prompt, int height, int width);
210 int dialog_msgbox(const char *title, const char *prompt, int height,
211 int width, int pause);
212 int dialog_textbox(const char *title, const char *file, int height, int width);
213 int dialog_menu(const char *title, const char *prompt,
214 const void *selected, int *s_scroll);
215 int dialog_checklist(const char *title, const char *prompt, int height,
216 int width, int list_height);
217 extern char dialog_input_result[];
218 int 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 ''-'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)
231
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