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 
28 #ifdef __sun__
29 #define CURS_MACROS
30 #endif
31 #include CURSES_LOC
32 
33 /*
34  * Colors in ncurses 1.9.9e do not work properly since foreground and
35  * background colors are OR'd rather than separately masked.  This version
36  * of dialog was hacked to work with ncurses 1.9.9e, making it incompatible
37  * with standard curses.  The simplest fix (to make this work with standard
38  * curses) uses the wbkgdset() function, not used in the original hack.
39  * Turn it off if we're building with 1.9.9e, since it just confuses things.
40  */
41 #if defined(NCURSES_VERSION) && defined(_NEED_WRAP) && !defined(GCC_PRINTFLIKE)
42 #define OLD_NCURSES 1
43 #undef  wbkgdset
44 #define wbkgdset(w,p)		/*nothing */
45 #else
46 #define OLD_NCURSES 0
47 #endif
48 
49 #define TR(params) _tracef params
50 
51 #define ESC 27
52 #define TAB 9
53 #define MAX_LEN 2048
54 #define BUF_SIZE (10*1024)
55 #define MIN(x,y) (x < y ? x : y)
56 #define MAX(x,y) (x > y ? x : y)
57 
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 
89 /*
90  * Attribute names
91  */
92 #define screen_attr                   attributes[0]
93 #define shadow_attr                   attributes[1]
94 #define dialog_attr                   attributes[2]
95 #define title_attr                    attributes[3]
96 #define border_attr                   attributes[4]
97 #define button_active_attr            attributes[5]
98 #define button_inactive_attr          attributes[6]
99 #define button_key_active_attr        attributes[7]
100 #define button_key_inactive_attr      attributes[8]
101 #define button_label_active_attr      attributes[9]
102 #define button_label_inactive_attr    attributes[10]
103 #define inputbox_attr                 attributes[11]
104 #define inputbox_border_attr          attributes[12]
105 #define searchbox_attr                attributes[13]
106 #define searchbox_title_attr          attributes[14]
107 #define searchbox_border_attr         attributes[15]
108 #define position_indicator_attr       attributes[16]
109 #define menubox_attr                  attributes[17]
110 #define menubox_border_attr           attributes[18]
111 #define item_attr                     attributes[19]
112 #define item_selected_attr            attributes[20]
113 #define tag_attr                      attributes[21]
114 #define tag_selected_attr             attributes[22]
115 #define tag_key_attr                  attributes[23]
116 #define tag_key_selected_attr         attributes[24]
117 #define check_attr                    attributes[25]
118 #define check_selected_attr           attributes[26]
119 #define uarrow_attr                   attributes[27]
120 #define darrow_attr                   attributes[28]
121 
122 /* number of attributes */
123 #define ATTRIBUTE_COUNT               29
124 
125 /*
126  * Global variables
127  */
128 extern bool use_colors;
129 extern bool use_shadow;
130 
131 extern chtype attributes[];
132 
133 extern const char *backtitle;
134 
135 /*
136  * Function prototypes
137  */
138 extern void create_rc(const char *filename);
139 extern int parse_rc(void);
140 
141 void init_dialog(void);
142 void end_dialog(void);
143 void attr_clear(WINDOW * win, int height, int width, chtype attr);
144 void dialog_clear(void);
145 void color_setup(void);
146 void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x);
147 void print_button(WINDOW * win, const char *label, int y, int x, int selected);
148 void print_title(WINDOW *dialog, const char *title, int width);
149 void draw_box(WINDOW * win, int y, int x, int height, int width, chtype box,
150 	      chtype border);
151 void draw_shadow(WINDOW * win, int y, int x, int height, int width);
152 
153 int first_alpha(const char *string, const char *exempt);
154 int dialog_yesno(const char *title, const char *prompt, int height, int width);
155 int dialog_msgbox(const char *title, const char *prompt, int height,
156 		  int width, int pause);
157 int dialog_textbox(const char *title, const char *file, int height, int width);
158 int dialog_menu(const char *title, const char *prompt, int height, int width,
159 		int menu_height, const char *choice, int item_no,
160 		const char *const *items);
161 int dialog_checklist(const char *title, const char *prompt, int height,
162 		     int width, int list_height, int item_no,
163 		     const char *const *items);
164 extern char dialog_input_result[];
165 int dialog_inputbox(const char *title, const char *prompt, int height,
166 		    int width, const char *init);
167 
168 /*
169  * This is the base for fictitious keys, which activate
170  * the buttons.
171  *
172  * Mouse-generated keys are the following:
173  *   -- the first 32 are used as numbers, in addition to '0'-'9'
174  *   -- the lowercase are used to signal mouse-enter events (M_EVENT + 'o')
175  *   -- uppercase chars are used to invoke the button (M_EVENT + 'O')
176  */
177 #define M_EVENT (KEY_MAX+1)
178