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dialog.h 7.5 KB

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