QBasic & Borland Pascal & C/Delphi5.iso/C/Samples/CSAPE32.ARJ/SOURCE/FUNCS/FNTIME.C

C/C++ Source or Header | 1990-09-16 | 5KB | 238 lines

/*
    fntime.c

    % time_funcs

    Time editing functions.
    The field variable should be a struct tm *.

    C-scape 3.2
    Copyright (c) 1986, 1987, 1988 by Oakland Group, Inc.
    ALL RIGHTS RESERVED.

    Revision History:
    -----------------
     3/12/87 jdc    created
     4/06/88 jmd     added call to sed_DoSpecial
     5/12/88 jmd    added calls to sed_GetScratchPad()
     9/17/88 jmd     added std_ funcs, errmsg
    10/09/88 jmd     added SED_ABORT support
    10/14/88 jdc    added var_size element to field_funcs_struct
    12/22/88 jmd     added SED_FIRST support

     6/07/89 jmd    added test for mouse code (later removed)

     1/25/90 jmd    converted kb_Check to kb_CheckWait
     1/31/90 jmd    don't reset baton on MOU_CLICK
     3/14/90 jmd    moved formatting before validation
     3/16/90 jmd    added support for KEY_INVALID in fexit
     3/28/90 jmd    ansi-fied
     7/11/90 jdc    added record len check for senter, sexit
     8/01/90 jdc    now uses time_fmt field in ocountry struct for 24/12 hour
     8/27/90 jmd    removed errmsg global variable
     9/11/90 pmcm    changed sed_SetMouseCode to kb_Stuff
*/

#include <stdio.h>
#include <string.h>
#include <ctype.h>


#include "cscape.h"
#include "ostdlib.h"        /* for atoi() */

#include "scancode.h"
#include "fnfunc.h"            /* for field functions */

#include <time.h>
#include "cstime.h"

OGLOBAL field_funcs_struct time_funcs = {
    std_fenter,
    time_fexit,
    time_fkey,
    time_senter,
    time_sexit,
    sizeof(struct tm)
};

void time_fkey(sed_type sed)
{
    int   scancode, key;

    scancode = kb_Read();

    if (sed_DoSpecial(sed, scancode))
        return;
    if (special_key(sed, scancode))
        return;
    if (inter_field(sed, scancode))
        return;
    if (inter_page(sed, scancode))
        return;

    switch(scancode) {
    case ESC:
        sed_SetBaton(sed, 0);
        sed_ToggleExit(sed);
        break;
    case RIGHT:
        sed_IncChar(sed);
        break;
    case LEFT:
        sed_DecChar(sed);
        break;
    case HOME:
        sed_GoHome(sed);
        break;
    case END:
        sed_GoEnd(sed);
        break;
    case INS:
        break;
    case BACKSPACE:
        sed_Overwrite(sed,'0');
        sed_DecChar(sed);
        break;
    case DEL:
        sed_Overwrite(sed,'0');
        break;
    default:
        key = ascii(scancode);
        if (isdigit(key)) {
            if (sed_GetBaton(sed) == SED_FIRST) {
                /* clear record on first keystroke */
                sed_SetCurrRecord(sed, "000000");
                sed_UpdateCurrField(sed);
            }
            sed_Overwrite(sed, key);
            sed_IncChar(sed);
        }
        break;
    }

    /* reset baton */
    if (scancode != MOU_CLICK) {
        sed_SetBaton(sed, -1);
    }
}

boolean time_fexit(sed_type sed)
{
    if (sed_GetBaton(sed) != SED_ABORT) {

        /* format the field's record */
        std_format(sed);
        time_sexit(sed, sed_GetFieldNo(sed));

        if (!tm_IsTimeValid((struct tm *) sed_GetCurrVar(sed))) {

            /* Invalid entry: notify fkey function via mouse code */
            kb_Stuff(KEY_INVALID);
            return(FALSE);
        }
    }

    return(std_fexit(sed));
}

void time_senter(sed_type sed, int fieldno)
/*
    Convert native type to string for record.

    uses ocountry_struct (fncntry.h) time_fmt field to determine
    military or standard time.
*/
{
    struct tm *t;
    int len, hour, am = TRUE;
    char buff[10];

    t = (struct tm *) sed_GetVar(sed,fieldno);
    hour = t->tm_hour;

    if (ocountry.time_fmt == TIME_12) {

        if (hour >= 12) {
            am = FALSE;
        }
        if (hour == 0) {
            hour = 12;
        }
        else if (hour > 12) {
            hour -= 12;
        }
    }

    sprintf(buff, "%02d%02d%02d", hour, t->tm_min, t->tm_sec);

    if (ocountry.time_fmt == TIME_12
    && (len = sed_GetRecordLen(sed, fieldno)) >= 4) {

        strcpy(buff + len - 2, (am) ? "am" : "pm");
    }

    sed_SetRecord(sed, buff, fieldno);

    std_senter(sed, fieldno);
}

void time_sexit(sed_type sed, int fieldno)
/*
    Converts record back to native type.

    if no 'a' or 'p' character exsist in the record then it assumes
    military time REGARDLESS of the ocountry_struct.
*/
{
    char buff[10];
    struct tm *t;
    int time_fmt = TIME_24, am = TRUE, i;

    if (sed_GetBaton(sed) == SED_ABORT) {
        return;
    }

    t = (struct tm *) sed_GetVar(sed,fieldno);

    strcpy(buff, sed_GetRecord(sed, fieldno));

    for (i = sed_GetRecordLen(sed, fieldno) - 1;
         i >= 0 && !isdigit(buff[i]); i--) {

        if (buff[i] == 'p') {
            am = FALSE;
            time_fmt = TIME_12;
        }
        else if (buff[i] == 'a') time_fmt = TIME_12;
    }
    if (i < 0) return;

    t->tm_sec = 0;
    t->tm_min = 0;

    i++;
       buff[i] = '\0';

    if (i >= 6) {
        i -= 2;
        t->tm_sec = atoi(buff + i);
        buff[i] = '\0';
    }
    if (i == 4) {
        i -= 2;
        t->tm_min = atoi(buff + i);
        buff[i] = '\0';
    }
    t->tm_hour = atoi(buff);

    if (time_fmt == TIME_12) {

        if (!am) t->tm_hour += 12;
        t->tm_hour -= 1;
    }
}