getdate.c

来自「有关zip的一个开发实例。主要包括图片和程序源代码。」· C语言 代码 · 共 319 行

/*
 Copyright (C) 1996 Mike White
 Permission is granted to any individual or institution to use, copy, or
 redistribute this software so long as all of the original files are included,
 that it is not sold for profit, and that this copyright notice is retained.

*/

#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include "wiz.h"
#ifdef __BORLANDC__
#include <dir.h>
#endif
#include <dos.h>
#include "helpids.h"
#include <time.h>

/****************************************************************************

    FUNCTION: GetDateProc(HWND, unsigned, WPARAM, LPARAM)

    PURPOSE:  Processes messages for "Get Files For Archive" dialog box

    MESSAGES:

    WM_INITDIALOG - initialize dialog box
    WM_COMMAND    - Input received

****************************************************************************/
#ifdef __BORLANDC__
#pragma warn -par
#endif
BOOL WINAPI
GetDateProc(HWND hwndDlg, WORD wMessage, WPARAM wParam, LPARAM lParam)
{
unsigned int i, m, d, y;
struct tm *date;
time_t long_time;

char digits[7];
char Months[13][10] = {"January", "February", "March", "April", "May", "June",
                  "July", "August", "September", "October", "November",
                  "December"};
static HWND hOK;

   switch (wMessage) {
   case WM_INITDIALOG:
      {
      hOK = GetDlgItem(hwndDlg, IDOK);

      for (i = 0; i < 12; i++)
         {
         SendMessage(GetDlgItem(hwndDlg, IDC_MONTH), CB_ADDSTRING,
            0, (LPARAM)(LPCSTR)Months[i]);
         }
      for (i = 1; i < 32; i++)
         {
         SendMessage(GetDlgItem(hwndDlg, IDC_DAY), CB_ADDSTRING,
            0, (LPARAM)(LPCSTR)itoa(i, digits, 10));
         }
      for (i = 1980; i < 2100; i++)
         {
         SendMessage(GetDlgItem(hwndDlg, IDC_YEAR), CB_ADDSTRING,
            0, (LPARAM)(LPCSTR)itoa(i, digits, 10));
         }
      /* Set date to today's date */
      time( &long_time );                 /* Get time as long integer. */
      date = localtime( &long_time );     /* Convert to local time. */


      SendMessage(GetDlgItem(hwndDlg, IDC_MONTH), CB_SELECTSTRING,
         0, (LPARAM)(LPCSTR)Months[date->tm_mon]);
      SendMessage(GetDlgItem(hwndDlg, IDC_DAY), CB_SELECTSTRING,
         0, (LPARAM)(LPCSTR)itoa(date->tm_mday, digits, 10));
      SendMessage(GetDlgItem(hwndDlg, IDC_YEAR), CB_SELECTSTRING,
         0, (LPARAM)(LPCSTR)itoa((date->tm_year+1900), digits, 10));

      CenterDialog(GetParent(hwndDlg), hwndDlg); /* center on parent */
      }
      break;
   case WM_COMMAND:
      switch (LOWORD(wParam)) {
         case IDCANCEL:
            ZpOpt.Date[0] = '\0';
            EndDialog(hwndDlg, wParam);
            break;
         case IDC_DOWN:
            /* returns are 0 based indexes into list part of combo box */
            m = (unsigned int)SendMessage(GetDlgItem(hwndDlg, IDC_MONTH), CB_GETCURSEL,
               0, 0) + 1;
            d = (unsigned int)SendMessage(GetDlgItem(hwndDlg, IDC_DAY), CB_GETCURSEL,
               0, 0) + 1;
            y = (unsigned int)SendMessage(GetDlgItem(hwndDlg, IDC_YEAR), CB_GETCURSEL,
               0, 0);
            if (d > 1)
               d--;
            else
               {
               if (m > 1)
                  {
                  m--;
                  }
               else
                  {
                  if (y != 0)
                     {
                     y--;
                     m = 12;
                     }
                  }
               switch (m) {
                  case 1:
                     d = 31;
                     break;
                  case 2:
                     d = 29;
                     break;
                  case 3:
                     d = 30;
                     break;
                  case 4:
                     d = 30;
                     break;
                  case 5:
                     d = 31;
                     break;
                  case 6:
                     d = 30;
                     break;
                  case 7:
                     d = 31;
                     break;
                  case 8:
                     d = 31;
                     break;
                  case 9:
                     d = 30;
                     break;
                  case 10:
                     d = 31;
                     break;
                  case 11:
                     d = 30;
                     break;
                  case 12:
                     d = 31;
                     break;
                     }
               }
            SendMessage(GetDlgItem(hwndDlg, IDC_MONTH), CB_SELECTSTRING,
               (unsigned int)-1, (LPARAM)(LPCSTR)Months[m-1]);
            SendMessage(GetDlgItem(hwndDlg, IDC_DAY), CB_SELECTSTRING,
               (unsigned int)-1, (LPARAM)(LPCSTR)itoa(d, digits, 10));
            SendMessage(GetDlgItem(hwndDlg, IDC_YEAR), CB_SELECTSTRING,
               (unsigned int)-1, (LPARAM)(LPCSTR)itoa(y+1980, digits, 10));
            break;
         case IDC_UP:
            /* returns are 0 based indexes into list part of combo box */
            m = (unsigned int)SendMessage(GetDlgItem(hwndDlg, IDC_MONTH), CB_GETCURSEL,
               0, 0) + 1;
            d = (unsigned int)SendMessage(GetDlgItem(hwndDlg, IDC_DAY), CB_GETCURSEL,
               0, 0) + 1;
            y = (unsigned int)SendMessage(GetDlgItem(hwndDlg, IDC_YEAR), CB_GETCURSEL,
               0, 0);
            if (d < 29)
               d++;
            else
               {
               switch (m) {
                  case 1:
                     if (d < 31)
                        d++;
                     else
                        {
                        d = 1;
                        m++;
                        }
                     break;
                  case 2:
                     if (d < 29)
                        d++;
                     else
                        {
                        d = 1;
                        m++;
                        }
                     break;
                  case 3:
                     if (d < 31)
                        d++;
                     else
                        {
                        d = 1;
                        m++;
                        }
                     break;
                  case 4:
                     if (d < 30)
                        d++;
                     else
                        {
                        d = 1;
                        m++;
                        }
                     break;
                  case 5:
                     if (d < 31)
                        d++;
                     else
                        {
                        d = 1;
                        m++;
                        }
                     break;
                  case 6:
                     if (d < 30)
                        d++;
                     else
                        {
                        d = 1;
                        m++;
                        }
                     break;
                  case 7:
                     if (d < 31)
                        d++;
                     else
                        {
                        d = 1;
                        m++;
                        }
                     break;
                  case 8:
                     if (d < 31)
                        d++;
                     else
                        {
                        d = 1;
                        m++;
                        }
                     break;
                  case 9:
                     if (d < 30)
                        d++;
                     else
                        {
                        d = 1;
                        m++;
                        }
                     break;
                  case 10:
                     if (d < 31)
                        d++;
                     else
                        {
                        d = 1;
                        m++;
                        }
                     break;
                  case 11:
                     if (d < 30)
                        d++;
                     else
                        {
                        d = 1;
                        m++;
                        }
                     break;
                  case 12:
                     if (d < 31)
                        d++;
                     else
                        {
                        d = 1;
                        m = 1;
                        y++;
                        }
                     break;
                   }
               }
            SendMessage(GetDlgItem(hwndDlg, IDC_MONTH), CB_SELECTSTRING,
               (unsigned int)-1, (LPARAM)(LPCSTR)Months[m-1]);
            SendMessage(GetDlgItem(hwndDlg, IDC_DAY), CB_SELECTSTRING,
               (unsigned int)-1, (LPARAM)(LPCSTR)itoa(d, digits, 10));
            SendMessage(GetDlgItem(hwndDlg, IDC_YEAR), CB_SELECTSTRING,
               (unsigned int)-1, (LPARAM)(LPCSTR)itoa(y+1980, digits, 10));
            break;
         case IDOK:
            /* returns are 0 based indexes into list part of combo box */
            m = (unsigned int)SendMessage(GetDlgItem(hwndDlg, IDC_MONTH), CB_GETCURSEL,
               0, 0) + 1;
            d = (unsigned int)SendMessage(GetDlgItem(hwndDlg, IDC_DAY), CB_GETCURSEL,
               0, 0) + 1;
            y = (unsigned int)SendMessage(GetDlgItem(hwndDlg, IDC_YEAR), CB_GETCURSEL,
               0, 0);
            y = 80 + y;
            if (y > 99)
               {
               y = y - 100;
               y = y + 2000;
               }
            else
               y = y+1900;
            sprintf(ZpOpt.Date, "%02d%02d%02d", m,d,y);
            EndDialog(hwndDlg, wParam);
            break;
         }
      default:
         break;
   }
   return FALSE;
}
#ifdef __BORLANDC__
#pragma warn .par
#endif