Subversion Repositories svn1

Rev

Rev 46 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
1 root 1 
/*************************************************************************
2 
*           Copyright (C) 1995 Embedded Solutions
3 
*                       All rights reserved
4 
*
5 
* file:     src\menudrv.c
6 
*
7 
* purpose:  Module that contains the table driven menu driver
8 
*
9 
*           The function that is called to do all the work is do_menu
10 
*           This function requires a pointer to an array of menu drive entries
11 
*           The function returns when an abort is requested.
12 
*
13 
* functions
14 
*       do_menu                 - Produce menu
15 
*
16 
* programmer: David Purdie
17 
*
18 
* revision  date        by      reason
19 
*   00.0    27/01/95    DDP     Tidies up the program and formatted the file
20 
*
21 
**************************************************************************/
22 
 
23 
#include    "consts.h"
24 
#include    "structs.h"
25 
#include    "proto.h"
26 
 
27 
/*========================================================================
28 
 *
29 
 *  Produce menu
30 
 *
31 
 *  Purpose:
32 
 *      This function is called to process a menu structure and display
33 
 *      a menu on the screen.
34 
 *
35 
 *  Parameters:
36 
 *      header          Menu display title
37 
 *      prompt          Operator prompt
38 
 *      table           Drive table structure
39 
 *
40 
 *
41 
 *  Returns:
42 
 *      Nothing
43 
 *
44 
 *========================================================================*/
45 
 
46 
void do_menu( char *header, char *prompt, menu_table * table )
47 
{
48 
    menu_table *curr;                            /* Current entry pointer */
49 
    int         i;
50 
    char        c;
51 
    int         alldone = FALSE;
52 
    int         found;
53 
 
54 
    /*
55 
     * Clear the screen and display the menu
56 
     */
57 
 
58 
    do
59 
    {
60 
        abort_flag = FALSE;                      /* Reset global abort flag */
61 
        curr = table;                            /* init the current pointer */
62 
        i = 2;                                   /* init cursor position */
63 
        clearscreen();
64 
        cur( 10, i );
65 
        printf( "%s", header );                  /* display header */
66 
        i += 2;
67 
        while( curr->key )
68 
        {
69 
            cur( 10, i );
70 
            console_prompt ( curr->key  );
71 
            printf( " %s", curr->prompt );
72 
            i++;
73 
            curr++;
74 
        }
75 
 
76 
        /*
77 
         * Prompt the operator to select an item
78 
         */
79 
 
80 
        found = FALSE;
81 
        while( !found )
82 
        {
83 
            cur( 0, 2 + i );
84 
            printf( "%s:", prompt );
85 
            console_clreol();
86 
            c = toupper( getinp() );
87 
            if( abort_flag )
88 
            {
89 
                alldone = TRUE;
90 
                break;
91 
            }
92 
            curr = table;
93 
            while( curr->key )
94 
            {
95 
                if( toupper( ( int ) curr->key ) == c )
96 
                {
97 
                    found = TRUE;
98 
                    /*
99 
                     * Correct operation located
100 
                     */
101 
                    if( curr->doit == NULL )
102 
                    {
103 
                        alldone = TRUE;
104 
                        break;
105 
                    }
106 
                    else
107 
                    {
108 
                        clearscreen();
109 
                        ( void ) ( *curr->doit ) ();
110 
                        break;
111 
                    }
112 
                }
113 
                curr++;
114 
            }
115 
            if( !found )
116 
                beep();                        /* operator */
117 
        }
118 
    } while( !alldone );
119 
}
120 
 
121 
/********************************* EOF ***********************************/