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 #define TR(params) _tracef params 22 23 #define KEY_ESC 27 24 #define TAB 9 25 #define MAX_LEN 2048 26 #define BUF_SIZE (10*1024) 27 #define MIN(x,y) (x < y ? x : y) 28 #define MAX(x,y) (x > y ? x : y) 29 30 #ifndef ACS_ULCORNER 31 #define ACS_ULCORNER '+' 32 #endif 33 #ifndef ACS_LLCORNER 34 #define ACS_LLCORNER '+' 35 #endif 36 #ifndef ACS_URCORNER 37 #define ACS_URCORNER '+' 38 #endif 39 #ifndef ACS_LRCORNER 40 #define ACS_LRCORNER '+' 41 #endif 42 #ifndef ACS_HLINE 43 #define ACS_HLINE '-' 44 #endif 45 #ifndef ACS_VLINE 46 #define ACS_VLINE '|' 47 #endif 48 #ifndef ACS_LTEE 49 #define ACS_LTEE '+' 50 #endif 51 #ifndef ACS_RTEE 52 #define ACS_RTEE '+' 53 #endif 54 #ifndef ACS_UARROW 55 #define ACS_UARROW '^' 56 #endif 57 #ifndef ACS_DARROW 58 #define ACS_DARROW 'v' 59 #endif 60 61 /* error return codes */ 62 #define ERRDISPLAYTOOSMALL (KEY_MAX + 1) 63 64 /* 65 * Color definitions 66 */ 67 struct dialog_color { 68 chtype atr; /* Color attribute */ 69 int fg; /* foreground */ 70 int bg; /* background */ 71 int hl; /* highlight this item */ 72 }; 73 74 struct subtitle_list { 75 struct subtitle_list *next; 76 const char *text; 77 }; 78 79 struct dialog_info { 80 const char *backtitle; 81 struct subtitle_list *subtitles; 82 struct dialog_color screen; 83 struct dialog_color shadow; 84 struct dialog_color dialog; 85 struct dialog_color title; 86 struct dialog_color border; 87 struct dialog_color button_active; 88 struct dialog_color button_inactive; 89 struct dialog_color button_key_active; 90 struct dialog_color button_key_inactive; 91 struct dialog_color button_label_active; 92 struct dialog_color button_label_inactive; 93 struct dialog_color inputbox; 94 struct dialog_color inputbox_border; 95 struct dialog_color searchbox; 96 struct dialog_color searchbox_title; 97 struct dialog_color searchbox_border; 98 struct dialog_color position_indicator; 99 struct dialog_color menubox; 100 struct dialog_color menubox_border; 101 struct dialog_color item; 102 struct dialog_color item_selected; 103 struct dialog_color tag; 104 struct dialog_color tag_selected; 105 struct dialog_color tag_key; 106 struct dialog_color tag_key_selected; 107 struct dialog_color check; 108 struct dialog_color check_selected; 109 struct dialog_color uarrow; 110 struct dialog_color darrow; 111 }; 112 113 /* 114 * Global variables 115 */ 116 extern struct dialog_info dlg; 117 extern char dialog_input_result[]; 118 extern int saved_x, saved_y; /* Needed in signal handler in mconf.c */ 119 120 /* 121 * Function prototypes 122 */ 123 124 /* item list as used by checklist and menubox */ 125 void item_reset(void); 126 void item_make(const char *fmt, ...); 127 void item_add_str(const char *fmt, ...); 128 void item_set_tag(char tag); 129 void item_set_data(void *p); 130 void item_set_selected(int val); 131 int item_activate_selected(void); 132 void *item_data(void); 133 char item_tag(void); 134 135 /* item list manipulation for lxdialog use */ 136 #define MAXITEMSTR 200 137 struct dialog_item { 138 char str[MAXITEMSTR]; /* prompt displayed */ 139 char tag; 140 void *data; /* pointer to menu item - used by menubox+checklist */ 141 int selected; /* Set to 1 by dialog_*() function if selected. */ 142 }; 143 144 /* list of lialog_items */ 145 struct dialog_list { 146 struct dialog_item node; 147 struct dialog_list *next; 148 }; 149 150 extern struct dialog_list *item_cur; 151 extern struct dialog_list item_nil; 152 extern struct dialog_list *item_head; 153 154 int item_count(void); 155 void item_set(int n); 156 int item_n(void); 157 const char *item_str(void); 158 int item_is_selected(void); 159 int item_is_tag(char tag); 160 #define item_foreach() \ 161 for (item_cur = item_head ? item_head: item_cur; \ 162 item_cur && (item_cur != &item_nil); item_cur = item_cur->next) 163 164 /* generic key handlers */ 165 int on_key_esc(WINDOW *win); 166 int on_key_resize(void); 167 168 /* minimum (re)size values */ 169 #define CHECKLIST_HEIGTH_MIN 6 /* For dialog_checklist() */ 170 #define CHECKLIST_WIDTH_MIN 6 171 #define INPUTBOX_HEIGTH_MIN 2 /* For dialog_inputbox() */ 172 #define INPUTBOX_WIDTH_MIN 2 173 #define MENUBOX_HEIGTH_MIN 15 /* For dialog_menu() */ 174 #define MENUBOX_WIDTH_MIN 65 175 #define TEXTBOX_HEIGTH_MIN 8 /* For dialog_textbox() */ 176 #define TEXTBOX_WIDTH_MIN 8 177 #define YESNO_HEIGTH_MIN 4 /* For dialog_yesno() */ 178 #define YESNO_WIDTH_MIN 4 179 #define WINDOW_HEIGTH_MIN 19 /* For init_dialog() */ 180 #define WINDOW_WIDTH_MIN 80 181 182 int init_dialog(const char *backtitle); 183 void set_dialog_backtitle(const char *backtitle); 184 void set_dialog_subtitles(struct subtitle_list *subtitles); 185 void end_dialog(int x, int y); 186 void attr_clear(WINDOW * win, int height, int width, chtype attr); 187 void dialog_clear(void); 188 void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x); 189 void print_button(WINDOW * win, const char *label, int y, int x, int selected); 190 void print_title(WINDOW *dialog, const char *title, int width); 191 void draw_box(WINDOW * win, int y, int x, int height, int width, chtype box, 192 chtype border); 193 void draw_shadow(WINDOW * win, int y, int x, int height, int width); 194 195 int first_alpha(const char *string, const char *exempt); 196 int dialog_yesno(const char *title, const char *prompt, int height, int width); 197 int dialog_msgbox(const char *title, const char *prompt, int height, 198 int width, int pause); 199 200 201 typedef void (*update_text_fn)(char *buf, size_t start, size_t end, void 202 *_data); 203 int dialog_textbox(const char *title, char *tbuf, int initial_height, 204 int initial_width, int *keys, int *_vscroll, int *_hscroll, 205 update_text_fn update_text, void *data); 206 int dialog_menu(const char *title, const char *prompt, 207 const void *selected, int *s_scroll); 208 int dialog_checklist(const char *title, const char *prompt, int height, 209 int width, int list_height); 210 int dialog_inputbox(const char *title, const char *prompt, int height, 211 int width, const char *init); 212