kconfig/lxdialog/dialog.h
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Jan 12 19:24:03 2010 +0100 (2010-01-12)
changeset 1761 88020b2c3246
parent 1 eeea35fbf182
permissions -rw-r--r--
scripts/functions: change handling of nochdir

- 'nochdir' must be the first option
- have systematic pushd/popd, even if nochdir
     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 '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)