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 subtitle_list { 110 struct subtitle_list *next; 111 const char *text; 112 }; 113 114 struct dialog_info { 115 const char *backtitle; 116 struct subtitle_list *subtitles; 117 struct dialog_color screen; 118 struct dialog_color shadow; 119 struct dialog_color dialog; 120 struct dialog_color title; 121 struct dialog_color border; 122 struct dialog_color button_active; 123 struct dialog_color button_inactive; 124 struct dialog_color button_key_active; 125 struct dialog_color button_key_inactive; 126 struct dialog_color button_label_active; 127 struct dialog_color button_label_inactive; 128 struct dialog_color inputbox; 129 struct dialog_color inputbox_border; 130 struct dialog_color searchbox; 131 struct dialog_color searchbox_title; 132 struct dialog_color searchbox_border; 133 struct dialog_color position_indicator; 134 struct dialog_color menubox; 135 struct dialog_color menubox_border; 136 struct dialog_color item; 137 struct dialog_color item_selected; 138 struct dialog_color tag; 139 struct dialog_color tag_selected; 140 struct dialog_color tag_key; 141 struct dialog_color tag_key_selected; 142 struct dialog_color check; 143 struct dialog_color check_selected; 144 struct dialog_color uarrow; 145 struct dialog_color darrow; 146 }; 147 148 /* 149 * Global variables 150 */ 151 extern struct dialog_info dlg; 152 extern char dialog_input_result[]; 153 extern int saved_x, saved_y; /* Needed in signal handler in mconf.c */ 154 155 /* 156 * Function prototypes 157 */ 158 159 /* item list as used by checklist and menubox */ 160 void item_reset(void); 161 void item_make(const char *fmt, ...); 162 void item_add_str(const char *fmt, ...); 163 void item_set_tag(char tag); 164 void item_set_data(void *p); 165 void item_set_selected(int val); 166 int item_activate_selected(void); 167 void *item_data(void); 168 char item_tag(void); 169 170 /* item list manipulation for lxdialog use */ 171 #define MAXITEMSTR 200 172 struct dialog_item { 173 char str[MAXITEMSTR]; /* prompt displayed */ 174 char tag; 175 void *data; /* pointer to menu item - used by menubox+checklist */ 176 int selected; /* Set to 1 by dialog_*() function if selected. */ 177 }; 178 179 /* list of lialog_items */ 180 struct dialog_list { 181 struct dialog_item node; 182 struct dialog_list *next; 183 }; 184 185 extern struct dialog_list *item_cur; 186 extern struct dialog_list item_nil; 187 extern struct dialog_list *item_head; 188 189 int item_count(void); 190 void item_set(int n); 191 int item_n(void); 192 const char *item_str(void); 193 int item_is_selected(void); 194 int item_is_tag(char tag); 195 #define item_foreach() \ 196 for (item_cur = item_head ? item_head: item_cur; \ 197 item_cur && (item_cur != &item_nil); item_cur = item_cur->next) 198 199 /* generic key handlers */ 200 int on_key_esc(WINDOW *win); 201 int on_key_resize(void); 202 203 /* minimum (re)size values */ 204 #define CHECKLIST_HEIGTH_MIN 6 /* For dialog_checklist() */ 205 #define CHECKLIST_WIDTH_MIN 6 206 #define INPUTBOX_HEIGTH_MIN 2 /* For dialog_inputbox() */ 207 #define INPUTBOX_WIDTH_MIN 2 208 #define MENUBOX_HEIGTH_MIN 15 /* For dialog_menu() */ 209 #define MENUBOX_WIDTH_MIN 65 210 #define TEXTBOX_HEIGTH_MIN 8 /* For dialog_textbox() */ 211 #define TEXTBOX_WIDTH_MIN 8 212 #define YESNO_HEIGTH_MIN 4 /* For dialog_yesno() */ 213 #define YESNO_WIDTH_MIN 4 214 #define WINDOW_HEIGTH_MIN 19 /* For init_dialog() */ 215 #define WINDOW_WIDTH_MIN 80 216 217 int init_dialog(const char *backtitle); 218 void set_dialog_backtitle(const char *backtitle); 219 void set_dialog_subtitles(struct subtitle_list *subtitles); 220 void end_dialog(int x, int y); 221 void attr_clear(WINDOW * win, int height, int width, chtype attr); 222 void dialog_clear(void); 223 void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x); 224 void print_button(WINDOW * win, const char *label, int y, int x, int selected); 225 void print_title(WINDOW *dialog, const char *title, int width); 226 void draw_box(WINDOW * win, int y, int x, int height, int width, chtype box, 227 chtype border); 228 void draw_shadow(WINDOW * win, int y, int x, int height, int width); 229 230 int first_alpha(const char *string, const char *exempt); 231 int dialog_yesno(const char *title, const char *prompt, int height, int width); 232 int dialog_msgbox(const char *title, const char *prompt, int height, 233 int width, int pause); 234 235 236 typedef void (*update_text_fn)(char *buf, size_t start, size_t end, void 237 *_data); 238 int dialog_textbox(const char *title, char *tbuf, int initial_height, 239 int initial_width, int *keys, int *_vscroll, int *_hscroll, 240 update_text_fn update_text, void *data); 241 int dialog_menu(const char *title, const char *prompt, 242 const void *selected, int *s_scroll); 243 int dialog_checklist(const char *title, const char *prompt, int height, 244 int width, int list_height); 245 int dialog_inputbox(const char *title, const char *prompt, int height, 246 int width, const char *init); 247 248 /* 249 * This is the base for fictitious keys, which activate 250 * the buttons. 251 * 252 * Mouse-generated keys are the following: 253 * -- the first 32 are used as numbers, in addition to '0'-'9' 254 * -- the lowercase are used to signal mouse-enter events (M_EVENT + 'o') 255 * -- uppercase chars are used to invoke the button (M_EVENT + 'O') 256 */ 257 #define M_EVENT (KEY_MAX+1) 258