reactos/dll/win32/comctl32/datetime.c

   1 /*
   2  * Date and time picker control
   3  *
   4  * Copyright 1998, 1999 Eric Kohl
   5  * Copyright 1999, 2000 Alex Priem <alexp@sci.kun.nl>
   6  * Copyright 2000 Chris Morgan <cmorgan@wpi.edu>
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  * NOTE
  23  *
  24  * This code was audited for completeness against the documented features
  25  * of Comctl32.dll version 6.0 on Oct. 20, 2004, by Dimitrie O. Paun.
  26  *
  27  * Unless otherwise noted, we believe this code to be complete, as per
  28  * the specification mentioned above.
  29  * If you discover missing features, or bugs, please note them below.
  30  *
  31  * TODO:
  32  *    -- DTS_APPCANPARSE
  33  *    -- DTS_SHORTDATECENTURYFORMAT
  34  *    -- DTN_CLOSEUP
  35  *    -- DTN_FORMAT
  36  *    -- DTN_FORMATQUERY
  37  *    -- DTN_USERSTRING
  38  *    -- DTN_WMKEYDOWN
  39  *    -- FORMATCALLBACK
  40  */
  41
  42 #include <math.h>
  43 #include <string.h>
  44 #include <stdarg.h>
  45 #include <stdio.h>
  46 #include <limits.h>
  47
  48 #include "windef.h"
  49 #include "winbase.h"
  50 #include "wingdi.h"
  51 #include "winuser.h"
  52 #include "winnls.h"
  53 #include "commctrl.h"
  54 #include "comctl32.h"
  55 #include "wine/debug.h"
  56 #include "wine/unicode.h"
  57
  58 WINE_DEFAULT_DEBUG_CHANNEL(datetime);
  59
  60 typedef struct
  61 {
  62     HWND hwndSelf;
  63     HWND hMonthCal;
  64     HWND hwndNotify;
  65     HWND hUpdown;
  66     DWORD dwStyle;
  67     SYSTEMTIME date;
  68     BOOL dateValid;
  69     HWND hwndCheckbut;
  70     RECT rcClient; /* rect around the edge of the window */
  71     RECT rcDraw; /* rect inside of the border */
  72     RECT checkbox;  /* checkbox allowing the control to be enabled/disabled */
  73     RECT calbutton; /* button that toggles the dropdown of the monthcal control */
  74     BOOL bCalDepressed; /* TRUE = cal button is depressed */
  75     int  select;
  76     HFONT hFont;
  77     int nrFieldsAllocated;
  78     int nrFields;
  79     int haveFocus;
  80     int *fieldspec;
  81     RECT *fieldRect;
  82     int  *buflen;
  83     WCHAR textbuf[256];
  84     POINT monthcal_pos;
  85     int pendingUpdown;
  86 } DATETIME_INFO, *LPDATETIME_INFO;
  87
  88 /* in monthcal.c */
  89 extern int MONTHCAL_MonthLength(int month, int year);
  90
  91 /* this list of defines is closely related to `allowedformatchars' defined
  92  * in datetime.c; the high nibble indicates the `base type' of the format
  93  * specifier.
  94  * Do not change without first reading DATETIME_UseFormat.
  95  *
  96  */
  97
  98 #define DT_END_FORMAT      0
  99 #define ONEDIGITDAY     0x01
 100 #define TWODIGITDAY     0x02
 101 #define THREECHARDAY    0x03
 102 #define FULLDAY         0x04
 103 #define ONEDIGIT12HOUR  0x11
 104 #define TWODIGIT12HOUR  0x12
 105 #define ONEDIGIT24HOUR  0x21
 106 #define TWODIGIT24HOUR  0x22
 107 #define ONEDIGITMINUTE  0x31
 108 #define TWODIGITMINUTE  0x32
 109 #define ONEDIGITMONTH   0x41
 110 #define TWODIGITMONTH   0x42
 111 #define THREECHARMONTH  0x43
 112 #define FULLMONTH       0x44
 113 #define ONEDIGITSECOND  0x51
 114 #define TWODIGITSECOND  0x52
 115 #define ONELETTERAMPM   0x61
 116 #define TWOLETTERAMPM   0x62
 117 #define ONEDIGITYEAR    0x71
 118 #define TWODIGITYEAR    0x72
 119 #define INVALIDFULLYEAR 0x73      /* FIXME - yyy is not valid - we'll treat it as yyyy */
 120 #define FULLYEAR        0x74
 121 #define FORMATCALLBACK  0x81      /* -> maximum of 0x80 callbacks possible */
 122 #define FORMATCALLMASK  0x80
 123 #define DT_STRING       0x0100
 124
 125 #define DTHT_DATEFIELD  0xff      /* for hit-testing */
 126
 127 #define DTHT_NONE     0
 128 #define DTHT_CHECKBOX 0x200     /* these should end at '00' , to make */
 129 #define DTHT_MCPOPUP  0x300     /* & DTHT_DATEFIELD 0 when DATETIME_KeyDown */
 130 #define DTHT_GOTFOCUS 0x400     /* tests for date-fields */
 131
 132 static BOOL DATETIME_SendSimpleNotify (DATETIME_INFO *infoPtr, UINT code);
 133 static BOOL DATETIME_SendDateTimeChangeNotify (DATETIME_INFO *infoPtr);
 134 extern void MONTHCAL_CopyTime(const SYSTEMTIME *from, SYSTEMTIME *to);
 135 static const WCHAR allowedformatchars[] = {'d', 'h', 'H', 'm', 'M', 's', 't', 'y', 'X', '\'', 0};
 136 static const int maxrepetition [] = {4,2,2,2,4,2,2,4,-1,-1};
 137
 138
 139 static DWORD
 140 DATETIME_GetSystemTime (DATETIME_INFO *infoPtr, SYSTEMTIME *lprgSysTimeArray)
 141 {
 142     if (!lprgSysTimeArray) return GDT_NONE;
 143
 144     if ((infoPtr->dwStyle & DTS_SHOWNONE) &&
 145         (SendMessageW (infoPtr->hwndCheckbut, BM_GETCHECK, 0, 0) == BST_UNCHECKED))
 146         return GDT_NONE;
 147
 148     MONTHCAL_CopyTime (&infoPtr->date, lprgSysTimeArray);
 149
 150     return GDT_VALID;
 151 }
 152
 153
 154 static BOOL
 155 DATETIME_SetSystemTime (DATETIME_INFO *infoPtr, DWORD flag, SYSTEMTIME *lprgSysTimeArray)
 156 {
 157     if (!lprgSysTimeArray) return 0;
 158
 159     TRACE("%04d/%02d/%02d %02d:%02d:%02d\n",
 160           lprgSysTimeArray->wYear, lprgSysTimeArray->wMonth, lprgSysTimeArray->wDay,
 161           lprgSysTimeArray->wHour, lprgSysTimeArray->wMinute, lprgSysTimeArray->wSecond);
 162
 163     if (flag == GDT_VALID) {
 164         infoPtr->dateValid = TRUE;
 165         MONTHCAL_CopyTime (lprgSysTimeArray, &infoPtr->date);
 166         SendMessageW (infoPtr->hMonthCal, MCM_SETCURSEL, 0, (LPARAM)(&infoPtr->date));
 167         SendMessageW (infoPtr->hwndCheckbut, BM_SETCHECK, BST_CHECKED, 0);
 168     } else if (flag == GDT_NONE) {
 169         infoPtr->dateValid = FALSE;
 170         SendMessageW (infoPtr->hwndCheckbut, BM_SETCHECK, BST_UNCHECKED, 0);
 171     }
 172
 173     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 174     return TRUE;
 175 }
 176
 177
 178 /***
 179  * Split up a formattxt in actions.
 180  * See ms documentation for the meaning of the letter codes/'specifiers'.
 181  *
 182  * Notes:
 183  * *'dddddd' is handled as 'dddd' plus 'dd'.
 184  * *unrecognized formats are strings (here given the type DT_STRING;
 185  * start of the string is encoded in lower bits of DT_STRING.
 186  * Therefore, 'string' ends finally up as '<show seconds>tring'.
 187  *
 188  */
 189 static void
 190 DATETIME_UseFormat (DATETIME_INFO *infoPtr, LPCWSTR formattxt)
 191 {
 192     unsigned int i;
 193     int j, k, len;
 194     int *nrFields = &infoPtr->nrFields;
 195
 196     *nrFields = 0;
 197     infoPtr->fieldspec[*nrFields] = 0;
 198     len = strlenW(allowedformatchars);
 199     k = 0;
 200
 201     for (i = 0; formattxt[i]; i++)  {
 202         TRACE ("\n%d %c:", i, formattxt[i]);
 203         for (j = 0; j < len; j++) {
 204             if (allowedformatchars[j]==formattxt[i]) {
 205                 TRACE ("%c[%d,%x]", allowedformatchars[j], *nrFields, infoPtr->fieldspec[*nrFields]);
 206                 if ((*nrFields==0) && (infoPtr->fieldspec[*nrFields]==0)) {
 207                     infoPtr->fieldspec[*nrFields] = (j<<4) + 1;
 208                     break;
 209                 }
 210                 if (infoPtr->fieldspec[*nrFields] >> 4 != j) {
 211                     (*nrFields)++;
 212                     infoPtr->fieldspec[*nrFields] = (j<<4) + 1;
 213                     break;
 214                 }
 215                 if ((infoPtr->fieldspec[*nrFields] & 0x0f) == maxrepetition[j]) {
 216                     (*nrFields)++;
 217                     infoPtr->fieldspec[*nrFields] = (j<<4) + 1;
 218                     break;
 219                 }
 220                 infoPtr->fieldspec[*nrFields]++;
 221                 break;
 222             }   /* if allowedformatchar */
 223         } /* for j */
 224
 225         /* char is not a specifier: handle char like a string */
 226         if (j == len) {
 227             if ((*nrFields==0) && (infoPtr->fieldspec[*nrFields]==0)) {
 228                 infoPtr->fieldspec[*nrFields] = DT_STRING + k;
 229                 infoPtr->buflen[*nrFields] = 0;
 230             } else if ((infoPtr->fieldspec[*nrFields] & DT_STRING) != DT_STRING)  {
 231                 (*nrFields)++;
 232                 infoPtr->fieldspec[*nrFields] = DT_STRING + k;
 233                 infoPtr->buflen[*nrFields] = 0;
 234             }
 235             infoPtr->textbuf[k] = formattxt[i];
 236             k++;
 237             infoPtr->buflen[*nrFields]++;
 238         }   /* if j=len */
 239
 240         if (*nrFields == infoPtr->nrFieldsAllocated) {
 241             FIXME ("out of memory; should reallocate. crash ahead.\n");
 242         }
 243     } /* for i */
 244
 245     TRACE("\n");
 246
 247     if (infoPtr->fieldspec[*nrFields] != 0) (*nrFields)++;
 248 }
 249
 250
 251 static BOOL
 252 DATETIME_SetFormatW (DATETIME_INFO *infoPtr, LPCWSTR lpszFormat)
 253 {
 254     if (!lpszFormat) {
 255         WCHAR format_buf[80];
 256         DWORD format_item;
 257
 258         if (infoPtr->dwStyle & DTS_LONGDATEFORMAT)
 259             format_item = LOCALE_SLONGDATE;
 260         else if ((infoPtr->dwStyle & DTS_TIMEFORMAT) == DTS_TIMEFORMAT)
 261             format_item = LOCALE_STIMEFORMAT;
 262         else /* DTS_SHORTDATEFORMAT */
 263             format_item = LOCALE_SSHORTDATE;
 264         GetLocaleInfoW( GetSystemDefaultLCID(), format_item, format_buf, sizeof(format_buf)/sizeof(format_buf[0]));
 265         lpszFormat = format_buf;
 266     }
 267
 268     DATETIME_UseFormat (infoPtr, lpszFormat);
 269     InvalidateRect (infoPtr->hwndSelf, NULL, TRUE);
 270
 271     return infoPtr->nrFields;
 272 }
 273
 274
 275 static BOOL
 276 DATETIME_SetFormatA (DATETIME_INFO *infoPtr, LPCSTR lpszFormat)
 277 {
 278     if (lpszFormat) {
 279         BOOL retval;
 280         INT len = MultiByteToWideChar(CP_ACP, 0, lpszFormat, -1, NULL, 0);
 281         LPWSTR wstr = Alloc(len * sizeof(WCHAR));
 282         if (wstr) MultiByteToWideChar(CP_ACP, 0, lpszFormat, -1, wstr, len);
 283         retval = DATETIME_SetFormatW (infoPtr, wstr);
 284         Free (wstr);
 285         return retval;
 286     }
 287     else
 288         return DATETIME_SetFormatW (infoPtr, 0);
 289
 290 }
 291
 292
 293 static void
 294 DATETIME_ReturnTxt (DATETIME_INFO *infoPtr, int count, LPWSTR result, int resultSize)
 295 {
 296     static const WCHAR fmt_dW[] = { '%', 'd', 0 };
 297     static const WCHAR fmt__2dW[] = { '%', '.', '2', 'd', 0 };
 298     static const WCHAR fmt__3sW[] = { '%', '.', '3', 's', 0 };
 299     SYSTEMTIME date = infoPtr->date;
 300     int spec;
 301     WCHAR buffer[80];
 302
 303     *result=0;
 304     TRACE ("%d,%d\n", infoPtr->nrFields, count);
 305     if (count>infoPtr->nrFields || count < 0) {
 306         WARN ("buffer overrun, have %d want %d\n", infoPtr->nrFields, count);
 307         return;
 308     }
 309
 310     if (!infoPtr->fieldspec) return;
 311
 312     spec = infoPtr->fieldspec[count];
 313     if (spec & DT_STRING) {
 314         int txtlen = infoPtr->buflen[count];
 315
 316         if (txtlen > resultSize)
 317             txtlen = resultSize - 1;
 318         memcpy (result, infoPtr->textbuf + (spec &~ DT_STRING), txtlen * sizeof(WCHAR));
 319         result[txtlen] = 0;
 320         TRACE ("arg%d=%x->[%s]\n", count, infoPtr->fieldspec[count], debugstr_w(result));
 321         return;
 322     }
 323
 324
 325     switch (spec) {
 326         case DT_END_FORMAT:
 327             *result = 0;
 328             break;
 329         case ONEDIGITDAY:
 330             wsprintfW (result, fmt_dW, date.wDay);
 331             break;
 332         case TWODIGITDAY:
 333             wsprintfW (result, fmt__2dW, date.wDay);
 334             break;
 335         case THREECHARDAY:
 336             GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_SABBREVDAYNAME1+(date.wDayOfWeek+6)%7, result, 4);
 337             /*wsprintfW (result,"%.3s",days[date.wDayOfWeek]);*/
 338             break;
 339         case FULLDAY:
 340             GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_SDAYNAME1+(date.wDayOfWeek+6)%7, result, resultSize);
 341             break;
 342         case ONEDIGIT12HOUR:
 343             if (date.wHour == 0) {
 344                 result[0] = '1';
 345                 result[1] = '2';
 346                 result[2] = 0;
 347             }
 348             else
 349                 wsprintfW (result, fmt_dW, date.wHour - (date.wHour > 12 ? 12 : 0));
 350             break;
 351         case TWODIGIT12HOUR:
 352             if (date.wHour == 0) {
 353                 result[0] = '1';
 354                 result[1] = '2';
 355                 result[2] = 0;
 356             }
 357             else
 358                 wsprintfW (result, fmt__2dW, date.wHour - (date.wHour > 12 ? 12 : 0));
 359             break;
 360         case ONEDIGIT24HOUR:
 361             wsprintfW (result, fmt_dW, date.wHour);
 362             break;
 363         case TWODIGIT24HOUR:
 364             wsprintfW (result, fmt__2dW, date.wHour);
 365             break;
 366         case ONEDIGITSECOND:
 367             wsprintfW (result, fmt_dW, date.wSecond);
 368             break;
 369         case TWODIGITSECOND:
 370             wsprintfW (result, fmt__2dW, date.wSecond);
 371             break;
 372         case ONEDIGITMINUTE:
 373             wsprintfW (result, fmt_dW, date.wMinute);
 374             break;
 375         case TWODIGITMINUTE:
 376             wsprintfW (result, fmt__2dW, date.wMinute);
 377             break;
 378         case ONEDIGITMONTH:
 379             wsprintfW (result, fmt_dW, date.wMonth);
 380             break;
 381         case TWODIGITMONTH:
 382             wsprintfW (result, fmt__2dW, date.wMonth);
 383             break;
 384         case THREECHARMONTH:
 385             GetLocaleInfoW(GetSystemDefaultLCID(), LOCALE_SMONTHNAME1+date.wMonth -1,
 386                            buffer, sizeof(buffer)/sizeof(buffer[0]));
 387             wsprintfW (result, fmt__3sW, buffer);
 388             break;
 389         case FULLMONTH:
 390             GetLocaleInfoW(GetSystemDefaultLCID(),LOCALE_SMONTHNAME1+date.wMonth -1,
 391                            result, resultSize);
 392             break;
 393         case ONELETTERAMPM:
 394             result[0] = (date.wHour < 12 ? 'A' : 'P');
 395             result[1] = 0;
 396             break;
 397         case TWOLETTERAMPM:
 398             result[0] = (date.wHour < 12 ? 'A' : 'P');
 399             result[1] = 'M';
 400             result[2] = 0;
 401             break;
 402         case FORMATCALLBACK:
 403             FIXME ("Not implemented\n");
 404             result[0] = 'x';
 405             result[1] = 0;
 406             break;
 407         case ONEDIGITYEAR:
 408             wsprintfW (result, fmt_dW, date.wYear-10* (int) floor(date.wYear/10));
 409             break;
 410         case TWODIGITYEAR:
 411             wsprintfW (result, fmt__2dW, date.wYear-100* (int) floor(date.wYear/100));
 412             break;
 413         case INVALIDFULLYEAR:
 414         case FULLYEAR:
 415             wsprintfW (result, fmt_dW, date.wYear);
 416             break;
 417     }
 418
 419     TRACE ("arg%d=%x->[%s]\n", count, infoPtr->fieldspec[count], debugstr_w(result));
 420 }
 421
 422 /* Offsets of days in the week to the weekday of january 1 in a leap year. */
 423 static const int DayOfWeekTable[] = {0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4};
 424
 425 /* returns the day in the week(0 == sunday, 6 == saturday) */
 426 /* day(1 == 1st, 2 == 2nd... etc), year is the  year value */
 427 static int DATETIME_CalculateDayOfWeek(DWORD day, DWORD month, DWORD year)
 428 {
 429     year-=(month < 3);
 430
 431     return((year + year/4 - year/100 + year/400 +
 432          DayOfWeekTable[month-1] + day ) % 7);
 433 }
 434
 435 static int wrap(int val, int delta, int minVal, int maxVal)
 436 {
 437     val += delta;
 438     if (delta == INT_MIN || val < minVal) return maxVal;
 439     if (delta == INT_MAX || val > maxVal) return minVal;
 440     return val;
 441 }
 442
 443 static void
 444 DATETIME_IncreaseField (DATETIME_INFO *infoPtr, int number, int delta)
 445 {
 446     SYSTEMTIME *date = &infoPtr->date;
 447
 448     TRACE ("%d\n", number);
 449     if ((number > infoPtr->nrFields) || (number < 0)) return;
 450
 451     if ((infoPtr->fieldspec[number] & DTHT_DATEFIELD) == 0) return;
 452
 453     switch (infoPtr->fieldspec[number]) {
 454         case ONEDIGITYEAR:
 455         case TWODIGITYEAR:
 456         case FULLYEAR:
 457             date->wYear = wrap(date->wYear, delta, 1752, 9999);
 458             date->wDayOfWeek = DATETIME_CalculateDayOfWeek(date->wDay,date->wMonth,date->wYear);
 459             break;
 460         case ONEDIGITMONTH:
 461         case TWODIGITMONTH:
 462         case THREECHARMONTH:
 463         case FULLMONTH:
 464             date->wMonth = wrap(date->wMonth, delta, 1, 12);
 465             date->wDayOfWeek = DATETIME_CalculateDayOfWeek(date->wDay,date->wMonth,date->wYear);
 466             delta = 0;
 467             /* fall through */
 468         case ONEDIGITDAY:
 469         case TWODIGITDAY:
 470         case THREECHARDAY:
 471         case FULLDAY:
 472             date->wDay = wrap(date->wDay, delta, 1, MONTHCAL_MonthLength(date->wMonth, date->wYear));
 473             date->wDayOfWeek = DATETIME_CalculateDayOfWeek(date->wDay,date->wMonth,date->wYear);
 474             break;
 475         case ONELETTERAMPM:
 476         case TWOLETTERAMPM:
 477             delta *= 12;
 478             /* fall through */
 479         case ONEDIGIT12HOUR:
 480         case TWODIGIT12HOUR:
 481         case ONEDIGIT24HOUR:
 482         case TWODIGIT24HOUR:
 483             date->wHour = wrap(date->wHour, delta, 0, 23);
 484             break;
 485         case ONEDIGITMINUTE:
 486         case TWODIGITMINUTE:
 487             date->wMinute = wrap(date->wMinute, delta, 0, 59);
 488             break;
 489         case ONEDIGITSECOND:
 490         case TWODIGITSECOND:
 491             date->wSecond = wrap(date->wSecond, delta, 0, 59);
 492             break;
 493         case FORMATCALLBACK:
 494             FIXME ("Not implemented\n");
 495             break;
 496     }
 497
 498     /* FYI: On 1752/9/14 the calendar changed and England and the
 499      * American colonies changed to the Gregorian calendar. This change
 500      * involved having September 14th follow September 2nd. So no date
 501      * algorithm works before that date.
 502      */
 503     if (10000 * date->wYear + 100 * date->wMonth + date->wDay < 17520914) {
 504         date->wYear = 1752;
 505         date->wMonth = 9;
 506         date->wDay = 14;
 507         date->wSecond = 0;
 508         date->wMinute = 0;
 509         date->wHour = 0;
 510     }
 511 }
 512
 513
 514 static void
 515 DATETIME_ReturnFieldWidth (DATETIME_INFO *infoPtr, HDC hdc, int count, SHORT *fieldWidthPtr)
 516 {
 517     /* fields are a fixed width, determined by the largest possible string */
 518     /* presumably, these widths should be language dependent */
 519     static const WCHAR fld_d1W[] = { '2', 0 };
 520     static const WCHAR fld_d2W[] = { '2', '2', 0 };
 521     static const WCHAR fld_d4W[] = { '2', '2', '2', '2', 0 };
 522     static const WCHAR fld_am1[] = { 'A', 0 };
 523     static const WCHAR fld_am2[] = { 'A', 'M', 0 };
 524     static const WCHAR fld_day[] = { 'W', 'e', 'd', 'n', 'e', 's', 'd', 'a', 'y', 0 };
 525     static const WCHAR fld_day3[] = { 'W', 'e', 'd', 0 };
 526     static const WCHAR fld_mon[] = { 'S', 'e', 'p', 't', 'e', 'm', 'b', 'e', 'r', 0 };
 527     static const WCHAR fld_mon3[] = { 'D', 'e', 'c', 0 };
 528     int spec;
 529     WCHAR buffer[80], *bufptr;
 530     SIZE size;
 531
 532     TRACE ("%d,%d\n", infoPtr->nrFields, count);
 533     if (count>infoPtr->nrFields || count < 0) {
 534         WARN ("buffer overrun, have %d want %d\n", infoPtr->nrFields, count);
 535         return;
 536     }
 537
 538     if (!infoPtr->fieldspec) return;
 539
 540     spec = infoPtr->fieldspec[count];
 541     if (spec & DT_STRING) {
 542         int txtlen = infoPtr->buflen[count];
 543
 544         if (txtlen > 79)
 545             txtlen = 79;
 546         memcpy (buffer, infoPtr->textbuf + (spec &~ DT_STRING), txtlen * sizeof(WCHAR));
 547         buffer[txtlen] = 0;
 548         bufptr = buffer;
 549     }
 550     else {
 551         switch (spec) {
 552             case ONEDIGITDAY:
 553             case ONEDIGIT12HOUR:
 554             case ONEDIGIT24HOUR:
 555             case ONEDIGITSECOND:
 556             case ONEDIGITMINUTE:
 557             case ONEDIGITMONTH:
 558             case ONEDIGITYEAR:
 559                 /* these seem to use a two byte field */
 560             case TWODIGITDAY:
 561             case TWODIGIT12HOUR:
 562             case TWODIGIT24HOUR:
 563             case TWODIGITSECOND:
 564             case TWODIGITMINUTE:
 565             case TWODIGITMONTH:
 566             case TWODIGITYEAR:
 567                 bufptr = (WCHAR *)fld_d2W;
 568                 break;
 569             case INVALIDFULLYEAR:
 570             case FULLYEAR:
 571                 bufptr = (WCHAR *)fld_d4W;
 572                 break;
 573             case THREECHARDAY:
 574                 bufptr = (WCHAR *)fld_day3;
 575                 break;
 576             case FULLDAY:
 577                 bufptr = (WCHAR *)fld_day;
 578                 break;
 579             case THREECHARMONTH:
 580                 bufptr = (WCHAR *)fld_mon3;
 581                 break;
 582             case FULLMONTH:
 583                 bufptr = (WCHAR *)fld_mon;
 584                 break;
 585             case ONELETTERAMPM:
 586                 bufptr = (WCHAR *)fld_am1;
 587                 break;
 588             case TWOLETTERAMPM:
 589                 bufptr = (WCHAR *)fld_am2;
 590                 break;
 591             default:
 592                 bufptr = (WCHAR *)fld_d1W;
 593                 break;
 594         }
 595     }
 596     GetTextExtentPoint32W (hdc, bufptr, strlenW(bufptr), &size);
 597     *fieldWidthPtr = size.cx;
 598 }
 599
 600 static void
 601 DATETIME_Refresh (DATETIME_INFO *infoPtr, HDC hdc)
 602 {
 603     int i,prevright;
 604     RECT *field;
 605     RECT *rcDraw = &infoPtr->rcDraw;
 606     RECT *calbutton = &infoPtr->calbutton;
 607     RECT *checkbox = &infoPtr->checkbox;
 608     SIZE size;
 609     COLORREF oldTextColor;
 610     SHORT fieldWidth = 0;
 611
 612     /* draw control edge */
 613     TRACE("\n");
 614
 615     if (infoPtr->dateValid) {
 616         HFONT oldFont = SelectObject (hdc, infoPtr->hFont);
 617         INT oldBkMode = SetBkMode (hdc, TRANSPARENT);
 618         WCHAR txt[80];
 619
 620         DATETIME_ReturnTxt (infoPtr, 0, txt, sizeof(txt)/sizeof(txt[0]));
 621         GetTextExtentPoint32W (hdc, txt, strlenW(txt), &size);
 622         rcDraw->bottom = size.cy + 2;
 623
 624         prevright = checkbox->right = ((infoPtr->dwStyle & DTS_SHOWNONE) ? 18 : 2);
 625
 626         for (i = 0; i < infoPtr->nrFields; i++) {
 627             DATETIME_ReturnTxt (infoPtr, i, txt, sizeof(txt)/sizeof(txt[0]));
 628             GetTextExtentPoint32W (hdc, txt, strlenW(txt), &size);
 629             DATETIME_ReturnFieldWidth (infoPtr, hdc, i, &fieldWidth);
 630             field = &infoPtr->fieldRect[i];
 631             field->left  = prevright;
 632             field->right = prevright + fieldWidth;
 633             field->top   = rcDraw->top;
 634             field->bottom = rcDraw->bottom;
 635             prevright = field->right;
 636
 637             if (infoPtr->dwStyle & WS_DISABLED)
 638                 oldTextColor = SetTextColor (hdc, comctl32_color.clrGrayText);
 639             else if ((infoPtr->haveFocus) && (i == infoPtr->select)) {
 640                 /* fill if focussed */
 641                 HBRUSH hbr = CreateSolidBrush (comctl32_color.clrActiveCaption);
 642                 FillRect(hdc, field, hbr);
 643                 DeleteObject (hbr);
 644                 oldTextColor = SetTextColor (hdc, comctl32_color.clrWindow);
 645             }
 646             else
 647                 oldTextColor = SetTextColor (hdc, comctl32_color.clrWindowText);
 648
 649             /* draw the date text using the colour set above */
 650             DrawTextW (hdc, txt, strlenW(txt), field, DT_RIGHT | DT_VCENTER | DT_SINGLELINE);
 651             SetTextColor (hdc, oldTextColor);
 652         }
 653         SetBkMode (hdc, oldBkMode);
 654         SelectObject (hdc, oldFont);
 655     }
 656
 657     if (!(infoPtr->dwStyle & DTS_UPDOWN)) {
 658         DrawFrameControl(hdc, calbutton, DFC_SCROLL,
 659                          DFCS_SCROLLDOWN | (infoPtr->bCalDepressed ? DFCS_PUSHED : 0) |
 660                          (infoPtr->dwStyle & WS_DISABLED ? DFCS_INACTIVE : 0) );
 661     }
 662 }
 663
 664
 665 static INT
 666 DATETIME_HitTest (DATETIME_INFO *infoPtr, POINT pt)
 667 {
 668     int i;
 669
 670     TRACE ("%ld, %ld\n", pt.x, pt.y);
 671
 672     if (PtInRect (&infoPtr->calbutton, pt)) return DTHT_MCPOPUP;
 673     if (PtInRect (&infoPtr->checkbox, pt)) return DTHT_CHECKBOX;
 674
 675     for (i=0; i < infoPtr->nrFields; i++) {
 676         if (PtInRect (&infoPtr->fieldRect[i], pt)) return i;
 677     }
 678
 679     return DTHT_NONE;
 680 }
 681
 682
 683 static LRESULT
 684 DATETIME_LButtonDown (DATETIME_INFO *infoPtr, WORD wKey, INT x, INT y)
 685 {
 686     POINT pt;
 687     int old, new;
 688
 689     pt.x = x;
 690     pt.y = y;
 691     old = infoPtr->select;
 692     new = DATETIME_HitTest (infoPtr, pt);
 693
 694     /* FIXME: might be conditions where we don't want to update infoPtr->select */
 695     infoPtr->select = new;
 696
 697     SetFocus(infoPtr->hwndSelf);
 698
 699     if (infoPtr->select == DTHT_MCPOPUP) {
 700         RECT rcMonthCal;
 701         SendMessageW(infoPtr->hMonthCal, MCM_GETMINREQRECT, 0, (LPARAM)&rcMonthCal);
 702
 703         /* FIXME: button actually is only depressed during dropdown of the */
 704         /* calendar control and when the mouse is over the button window */
 705         infoPtr->bCalDepressed = TRUE;
 706
 707         /* recalculate the position of the monthcal popup */
 708         if(infoPtr->dwStyle & DTS_RIGHTALIGN)
 709             infoPtr->monthcal_pos.x = infoPtr->calbutton.left -
 710                 (rcMonthCal.right - rcMonthCal.left);
 711         else
 712             /* FIXME: this should be after the area reserved for the checkbox */
 713             infoPtr->monthcal_pos.x = infoPtr->rcDraw.left;
 714
 715         infoPtr->monthcal_pos.y = infoPtr->rcClient.bottom;
 716         ClientToScreen (infoPtr->hwndSelf, &(infoPtr->monthcal_pos));
 717         SetWindowPos(infoPtr->hMonthCal, 0, infoPtr->monthcal_pos.x,
 718             infoPtr->monthcal_pos.y, rcMonthCal.right - rcMonthCal.left,
 719             rcMonthCal.bottom - rcMonthCal.top, 0);
 720
 721         if(IsWindowVisible(infoPtr->hMonthCal)) {
 722             ShowWindow(infoPtr->hMonthCal, SW_HIDE);
 723         } else {
 724             SYSTEMTIME *lprgSysTimeArray = &infoPtr->date;
 725             TRACE("update calendar %04d/%02d/%02d\n",
 726             lprgSysTimeArray->wYear, lprgSysTimeArray->wMonth, lprgSysTimeArray->wDay);
 727             SendMessageW(infoPtr->hMonthCal, MCM_SETCURSEL, 0, (LPARAM)(&infoPtr->date));
 728             ShowWindow(infoPtr->hMonthCal, SW_SHOW);
 729         }
 730
 731         TRACE ("dt:%p mc:%p mc parent:%p, desktop:%p\n",
 732                infoPtr->hwndSelf, infoPtr->hMonthCal, infoPtr->hwndNotify, GetDesktopWindow ());
 733         DATETIME_SendSimpleNotify (infoPtr, DTN_DROPDOWN);
 734     }
 735
 736     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 737
 738     return 0;
 739 }
 740
 741
 742 static LRESULT
 743 DATETIME_LButtonUp (DATETIME_INFO *infoPtr, WORD wKey)
 744 {
 745     if(infoPtr->bCalDepressed) {
 746         infoPtr->bCalDepressed = FALSE;
 747         InvalidateRect(infoPtr->hwndSelf, &(infoPtr->calbutton), TRUE);
 748     }
 749
 750     return 0;
 751 }
 752
 753
 754 static LRESULT
 755 DATETIME_Paint (DATETIME_INFO *infoPtr, HDC hdc)
 756 {
 757     if (!hdc) {
 758         PAINTSTRUCT ps;
 759         hdc = BeginPaint (infoPtr->hwndSelf, &ps);
 760         DATETIME_Refresh (infoPtr, hdc);
 761         EndPaint (infoPtr->hwndSelf, &ps);
 762     } else {
 763         DATETIME_Refresh (infoPtr, hdc);
 764     }
 765     return 0;
 766 }
 767
 768
 769 static LRESULT
 770 DATETIME_Button_Command (DATETIME_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 771 {
 772     if( HIWORD(wParam) == BN_CLICKED) {
 773         DWORD state = SendMessageW((HWND)lParam, BM_GETCHECK, 0, 0);
 774         infoPtr->dateValid = (state == BST_CHECKED);
 775         InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 776     }
 777     return 0;
 778 }
 779
 780
 781
 782 static LRESULT
 783 DATETIME_Command (DATETIME_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 784 {
 785     TRACE("hwndbutton = %p\n", infoPtr->hwndCheckbut);
 786     if(infoPtr->hwndCheckbut == (HWND)lParam)
 787         return DATETIME_Button_Command(infoPtr, wParam, lParam);
 788     return 0;
 789 }
 790
 791
 792 static LRESULT
 793 DATETIME_Enable (DATETIME_INFO *infoPtr, BOOL bEnable)
 794 {
 795     TRACE("%p %s\n", infoPtr, bEnable ? "TRUE" : "FALSE");
 796     if (bEnable)
 797         infoPtr->dwStyle &= ~WS_DISABLED;
 798     else
 799         infoPtr->dwStyle |= WS_DISABLED;
 800     return 0;
 801 }
 802
 803
 804 static LRESULT
 805 DATETIME_EraseBackground (DATETIME_INFO *infoPtr, HDC hdc)
 806 {
 807     HBRUSH hBrush, hSolidBrush = NULL;
 808     RECT   rc;
 809
 810     if (infoPtr->dwStyle & WS_DISABLED)
 811         hBrush = hSolidBrush = CreateSolidBrush(comctl32_color.clrBtnFace);
 812     else
 813     {
 814         hBrush = (HBRUSH)SendMessageW(infoPtr->hwndNotify, WM_CTLCOLOREDIT,
 815                                       (WPARAM)hdc, (LPARAM)infoPtr->hwndSelf);
 816         if (!hBrush)
 817             hBrush = hSolidBrush = CreateSolidBrush(comctl32_color.clrWindow);
 818     }
 819
 820     GetClientRect (infoPtr->hwndSelf, &rc);
 821
 822     FillRect (hdc, &rc, hBrush);
 823
 824     if (hSolidBrush)
 825         DeleteObject(hSolidBrush);
 826
 827     return -1;
 828 }
 829
 830
 831 static LRESULT
 832 DATETIME_Notify (DATETIME_INFO *infoPtr, int idCtrl, LPNMHDR lpnmh)
 833 {
 834     TRACE ("Got notification %x from %p\n", lpnmh->code, lpnmh->hwndFrom);
 835     TRACE ("info: %p %p %p\n", infoPtr->hwndSelf, infoPtr->hMonthCal, infoPtr->hUpdown);
 836
 837     if (lpnmh->code == MCN_SELECT) {
 838         ShowWindow(infoPtr->hMonthCal, SW_HIDE);
 839         infoPtr->dateValid = TRUE;
 840         SendMessageW (infoPtr->hMonthCal, MCM_GETCURSEL, 0, (LPARAM)&infoPtr->date);
 841         TRACE("got from calendar %04d/%02d/%02d day of week %d\n",
 842         infoPtr->date.wYear, infoPtr->date.wMonth, infoPtr->date.wDay, infoPtr->date.wDayOfWeek);
 843         SendMessageW (infoPtr->hwndCheckbut, BM_SETCHECK, BST_CHECKED, 0);
 844         InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 845         DATETIME_SendDateTimeChangeNotify (infoPtr);
 846     }
 847     if ((lpnmh->hwndFrom == infoPtr->hUpdown) && (lpnmh->code == UDN_DELTAPOS)) {
 848         LPNMUPDOWN lpnmud = (LPNMUPDOWN)lpnmh;
 849         TRACE("Delta pos %d\n", lpnmud->iDelta);
 850         infoPtr->pendingUpdown = lpnmud->iDelta;
 851     }
 852     return 0;
 853 }
 854
 855
 856 static LRESULT
 857 DATETIME_KeyDown (DATETIME_INFO *infoPtr, DWORD vkCode, LPARAM flags)
 858 {
 859     int fieldNum = infoPtr->select & DTHT_DATEFIELD;
 860     int wrap = 0;
 861
 862     if (!(infoPtr->haveFocus)) return 0;
 863     if ((fieldNum==0) && (infoPtr->select)) return 0;
 864
 865     if (infoPtr->select & FORMATCALLMASK) {
 866         FIXME ("Callbacks not implemented yet\n");
 867     }
 868
 869     if (vkCode >= '0' && vkCode <= '9') {
 870         /* this is a somewhat simplified version of what Windows does */
 871         SYSTEMTIME *date = &infoPtr->date;
 872         switch (infoPtr->fieldspec[fieldNum]) {
 873             case ONEDIGITYEAR:
 874             case TWODIGITYEAR:
 875                 date->wYear = date->wYear - (date->wYear%100) +
 876                         (date->wYear%10)*10 + (vkCode-'0');
 877                 date->wDayOfWeek = DATETIME_CalculateDayOfWeek(
 878                         date->wDay,date->wMonth,date->wYear);
 879                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 880                 break;
 881             case INVALIDFULLYEAR:
 882             case FULLYEAR:
 883                 date->wYear = (date->wYear%1000)*10 + (vkCode-'0');
 884                 date->wDayOfWeek = DATETIME_CalculateDayOfWeek(
 885                         date->wDay,date->wMonth,date->wYear);
 886                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 887                 break;
 888             case ONEDIGITMONTH:
 889             case TWODIGITMONTH:
 890                 if ((date->wMonth%10) > 1 || (vkCode-'0') > 2)
 891                     date->wMonth = vkCode-'0';
 892                 else
 893                     date->wMonth = (date->wMonth%10)*10+vkCode-'0';
 894                 date->wDayOfWeek = DATETIME_CalculateDayOfWeek(
 895                         date->wDay,date->wMonth,date->wYear);
 896                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 897                 break;
 898             case ONEDIGITDAY:
 899             case TWODIGITDAY:
 900                 /* probably better checking here would help */
 901                 if ((date->wDay%10) >= 3 && (vkCode-'0') > 1)
 902                     date->wDay = vkCode-'0';
 903                 else
 904                     date->wDay = (date->wDay%10)*10+vkCode-'0';
 905                 date->wDayOfWeek = DATETIME_CalculateDayOfWeek(
 906                         date->wDay,date->wMonth,date->wYear);
 907                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 908                 break;
 909             case ONEDIGIT12HOUR:
 910             case TWODIGIT12HOUR:
 911                 if ((date->wHour%10) > 1 || (vkCode-'0') > 2)
 912                     date->wHour = vkCode-'0';
 913                 else
 914                     date->wHour = (date->wHour%10)*10+vkCode-'0';
 915                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 916                 break;
 917             case ONEDIGIT24HOUR:
 918             case TWODIGIT24HOUR:
 919                 if ((date->wHour%10) > 2)
 920                     date->wHour = vkCode-'0';
 921                 else if ((date->wHour%10) == 2 && (vkCode-'0') > 3)
 922                     date->wHour = vkCode-'0';
 923                 else
 924                     date->wHour = (date->wHour%10)*10+vkCode-'0';
 925                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 926                 break;
 927             case ONEDIGITMINUTE:
 928             case TWODIGITMINUTE:
 929                 if ((date->wMinute%10) > 5)
 930                     date->wMinute = vkCode-'0';
 931                 else
 932                     date->wMinute = (date->wMinute%10)*10+vkCode-'0';
 933                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 934                 break;
 935             case ONEDIGITSECOND:
 936             case TWODIGITSECOND:
 937                 if ((date->wSecond%10) > 5)
 938                     date->wSecond = vkCode-'0';
 939                 else
 940                     date->wSecond = (date->wSecond%10)*10+vkCode-'0';
 941                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 942                 break;
 943         }
 944     }
 945
 946     switch (vkCode) {
 947         case VK_ADD:
 948         case VK_UP:
 949             DATETIME_IncreaseField (infoPtr, fieldNum, 1);
 950             DATETIME_SendDateTimeChangeNotify (infoPtr);
 951             break;
 952         case VK_SUBTRACT:
 953         case VK_DOWN:
 954             DATETIME_IncreaseField (infoPtr, fieldNum, -1);
 955             DATETIME_SendDateTimeChangeNotify (infoPtr);
 956             break;
 957         case VK_HOME:
 958             DATETIME_IncreaseField (infoPtr, fieldNum, INT_MIN);
 959             DATETIME_SendDateTimeChangeNotify (infoPtr);
 960             break;
 961         case VK_END:
 962             DATETIME_IncreaseField (infoPtr, fieldNum, INT_MAX);
 963             DATETIME_SendDateTimeChangeNotify (infoPtr);
 964             break;
 965         case VK_LEFT:
 966             do {
 967                 if (infoPtr->select == 0) {
 968                     infoPtr->select = infoPtr->nrFields - 1;
 969                     wrap++;
 970                 } else {
 971                     infoPtr->select--;
 972                 }
 973             } while ((infoPtr->fieldspec[infoPtr->select] & DT_STRING) && (wrap<2));
 974             break;
 975         case VK_RIGHT:
 976             do {
 977                 infoPtr->select++;
 978                 if (infoPtr->select==infoPtr->nrFields) {
 979                     infoPtr->select = 0;
 980                     wrap++;
 981                 }
 982             } while ((infoPtr->fieldspec[infoPtr->select] & DT_STRING) && (wrap<2));
 983             break;
 984     }
 985
 986     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 987
 988     return 0;
 989 }
 990
 991
 992 static LRESULT
 993 DATETIME_VScroll (DATETIME_INFO *infoPtr, WORD wScroll)
 994 {
 995     int fieldNum = infoPtr->select & DTHT_DATEFIELD;
 996
 997     if ((SHORT)LOWORD(wScroll) != SB_THUMBPOSITION) return 0;
 998     if (!(infoPtr->haveFocus)) return 0;
 999     if ((fieldNum==0) && (infoPtr->select)) return 0;
1000
1001     if (infoPtr->pendingUpdown >= 0) {
1002         DATETIME_IncreaseField (infoPtr, fieldNum, 1);
1003         DATETIME_SendDateTimeChangeNotify (infoPtr);
1004     }
1005     else {
1006         DATETIME_IncreaseField (infoPtr, fieldNum, -1);
1007         DATETIME_SendDateTimeChangeNotify (infoPtr);
1008     }
1009
1010     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
1011
1012     return 0;
1013 }
1014
1015
1016 static LRESULT
1017 DATETIME_KillFocus (DATETIME_INFO *infoPtr, HWND lostFocus)
1018 {
1019     TRACE("lost focus to %p\n", lostFocus);
1020
1021     if (infoPtr->haveFocus) {
1022         DATETIME_SendSimpleNotify (infoPtr, NM_KILLFOCUS);
1023         infoPtr->haveFocus = 0;
1024     }
1025
1026     InvalidateRect (infoPtr->hwndSelf, NULL, TRUE);
1027
1028     return 0;
1029 }
1030
1031
1032 static LRESULT
1033 DATETIME_NCCreate (HWND hwnd, LPCREATESTRUCTW lpcs)
1034 {
1035     DWORD dwExStyle = GetWindowLongW(hwnd, GWL_EXSTYLE);
1036     /* force control to have client edge */
1037     dwExStyle |= WS_EX_CLIENTEDGE;
1038     SetWindowLongW(hwnd, GWL_EXSTYLE, dwExStyle);
1039
1040     return DefWindowProcW(hwnd, WM_NCCREATE, 0, (LPARAM)lpcs);
1041 }
1042
1043
1044 static LRESULT
1045 DATETIME_SetFocus (DATETIME_INFO *infoPtr, HWND lostFocus)
1046 {
1047     TRACE("got focus from %p\n", lostFocus);
1048
1049     if (infoPtr->haveFocus == 0) {
1050         DATETIME_SendSimpleNotify (infoPtr, NM_SETFOCUS);
1051         infoPtr->haveFocus = DTHT_GOTFOCUS;
1052     }
1053
1054     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1055
1056     return 0;
1057 }
1058
1059
1060 static BOOL
1061 DATETIME_SendDateTimeChangeNotify (DATETIME_INFO *infoPtr)
1062 {
1063     NMDATETIMECHANGE dtdtc;
1064
1065     dtdtc.nmhdr.hwndFrom = infoPtr->hwndSelf;
1066     dtdtc.nmhdr.idFrom   = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
1067     dtdtc.nmhdr.code     = DTN_DATETIMECHANGE;
1068
1069     dtdtc.dwFlags = (infoPtr->dwStyle & DTS_SHOWNONE) ? GDT_NONE : GDT_VALID;
1070
1071     MONTHCAL_CopyTime (&infoPtr->date, &dtdtc.st);
1072     return (BOOL) SendMessageW (infoPtr->hwndNotify, WM_NOTIFY,
1073                                 (WPARAM)dtdtc.nmhdr.idFrom, (LPARAM)&dtdtc);
1074 }
1075
1076
1077 static BOOL
1078 DATETIME_SendSimpleNotify (DATETIME_INFO *infoPtr, UINT code)
1079 {
1080     NMHDR nmhdr;
1081
1082     TRACE("%x\n", code);
1083     nmhdr.hwndFrom = infoPtr->hwndSelf;
1084     nmhdr.idFrom   = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
1085     nmhdr.code     = code;
1086
1087     return (BOOL) SendMessageW (infoPtr->hwndNotify, WM_NOTIFY,
1088                                 (WPARAM)nmhdr.idFrom, (LPARAM)&nmhdr);
1089 }
1090
1091 static LRESULT
1092 DATETIME_Size (DATETIME_INFO *infoPtr, WORD flags, INT width, INT height)
1093 {
1094     /* set size */
1095     infoPtr->rcClient.bottom = height;
1096     infoPtr->rcClient.right = width;
1097
1098     TRACE("Height=%ld, Width=%ld\n", infoPtr->rcClient.bottom, infoPtr->rcClient.right);
1099
1100     infoPtr->rcDraw = infoPtr->rcClient;
1101
1102     if (infoPtr->dwStyle & DTS_UPDOWN) {
1103         SetWindowPos(infoPtr->hUpdown, NULL,
1104             infoPtr->rcClient.right-14, 0,
1105             15, infoPtr->rcClient.bottom - infoPtr->rcClient.top,
1106             SWP_NOACTIVATE | SWP_NOZORDER);
1107     }
1108     else {
1109         /* set the size of the button that drops the calendar down */
1110         /* FIXME: account for style that allows button on left side */
1111         infoPtr->calbutton.top   = infoPtr->rcDraw.top;
1112         infoPtr->calbutton.bottom= infoPtr->rcDraw.bottom;
1113         infoPtr->calbutton.left  = infoPtr->rcDraw.right-15;
1114         infoPtr->calbutton.right = infoPtr->rcDraw.right;
1115     }
1116
1117     /* set enable/disable button size for show none style being enabled */
1118     /* FIXME: these dimensions are completely incorrect */
1119     infoPtr->checkbox.top = infoPtr->rcDraw.top;
1120     infoPtr->checkbox.bottom = infoPtr->rcDraw.bottom;
1121     infoPtr->checkbox.left = infoPtr->rcDraw.left;
1122     infoPtr->checkbox.right = infoPtr->rcDraw.left + 10;
1123
1124     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1125
1126     return 0;
1127 }
1128
1129
1130 static LRESULT
1131 DATETIME_StyleChanged(DATETIME_INFO *infoPtr, WPARAM wStyleType, LPSTYLESTRUCT lpss)
1132 {
1133     static const WCHAR buttonW[] = { 'b', 'u', 't', 't', 'o', 'n', 0 };
1134
1135     TRACE("(styletype=%x, styleOld=0x%08lx, styleNew=0x%08lx)\n",
1136           wStyleType, lpss->styleOld, lpss->styleNew);
1137
1138     if (wStyleType != GWL_STYLE) return 0;
1139
1140     infoPtr->dwStyle = lpss->styleNew;
1141
1142     if ( !(lpss->styleOld & DTS_SHOWNONE) && (lpss->styleNew & DTS_SHOWNONE) ) {
1143         infoPtr->hwndCheckbut = CreateWindowExW (0, buttonW, 0, WS_CHILD | WS_VISIBLE | BS_AUTOCHECKBOX,
1144                                                  2, 2, 13, 13, infoPtr->hwndSelf, 0,
1145                                                 (HINSTANCE)GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_HINSTANCE), 0);
1146         SendMessageW (infoPtr->hwndCheckbut, BM_SETCHECK, 1, 0);
1147     }
1148     if ( (lpss->styleOld & DTS_SHOWNONE) && !(lpss->styleNew & DTS_SHOWNONE) ) {
1149         DestroyWindow(infoPtr->hwndCheckbut);
1150         infoPtr->hwndCheckbut = 0;
1151     }
1152     if ( !(lpss->styleOld & DTS_UPDOWN) && (lpss->styleNew & DTS_UPDOWN) ) {
1153         infoPtr->hUpdown = CreateUpDownControl (WS_CHILD | WS_BORDER | WS_VISIBLE, 120, 1, 20, 20,
1154                                                 infoPtr->hwndSelf, 1, 0, 0, UD_MAXVAL, UD_MINVAL, 0);
1155     }
1156     if ( (lpss->styleOld & DTS_UPDOWN) && !(lpss->styleNew & DTS_UPDOWN) ) {
1157         DestroyWindow(infoPtr->hUpdown);
1158         infoPtr->hUpdown = 0;
1159     }
1160
1161     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
1162     return 0;
1163 }
1164
1165
1166 static LRESULT
1167 DATETIME_SetFont (DATETIME_INFO *infoPtr, HFONT font, BOOL repaint)
1168 {
1169     infoPtr->hFont = font;
1170     if (repaint) InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
1171     return 0;
1172 }
1173
1174
1175 static LRESULT
1176 DATETIME_Create (HWND hwnd, LPCREATESTRUCTW lpcs)
1177 {
1178     static const WCHAR SysMonthCal32W[] = { 'S', 'y', 's', 'M', 'o', 'n', 't', 'h', 'C', 'a', 'l', '3', '2', 0 };
1179     DATETIME_INFO *infoPtr = (DATETIME_INFO *)Alloc (sizeof(DATETIME_INFO));
1180     STYLESTRUCT ss = { 0, lpcs->style };
1181
1182     if (!infoPtr) return -1;
1183
1184     infoPtr->hwndSelf = hwnd;
1185     infoPtr->dwStyle = lpcs->style;
1186
1187     infoPtr->nrFieldsAllocated = 32;
1188     infoPtr->fieldspec = (int *) Alloc (infoPtr->nrFieldsAllocated * sizeof(int));
1189     infoPtr->fieldRect = (RECT *) Alloc (infoPtr->nrFieldsAllocated * sizeof(RECT));
1190     infoPtr->buflen = (int *) Alloc (infoPtr->nrFieldsAllocated * sizeof(int));
1191     infoPtr->hwndNotify = lpcs->hwndParent;
1192     infoPtr->select = -1; /* initially, nothing is selected */
1193
1194     DATETIME_StyleChanged(infoPtr, GWL_STYLE, &ss);
1195     DATETIME_SetFormatW (infoPtr, 0);
1196
1197     /* create the monthcal control */
1198     infoPtr->hMonthCal = CreateWindowExW (0, SysMonthCal32W, 0, WS_BORDER | WS_POPUP | WS_CLIPSIBLINGS,
1199                                           0, 0, 0, 0, infoPtr->hwndSelf, 0, 0, 0);
1200
1201     /* initialize info structure */
1202     GetLocalTime (&infoPtr->date);
1203     infoPtr->dateValid = TRUE;
1204     infoPtr->hFont = GetStockObject(DEFAULT_GUI_FONT);
1205
1206     SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
1207
1208     return 0;
1209 }
1210
1211
1212
1213 static LRESULT
1214 DATETIME_Destroy (DATETIME_INFO *infoPtr)
1215 {
1216     if (infoPtr->hwndCheckbut)
1217         DestroyWindow(infoPtr->hwndCheckbut);
1218     if (infoPtr->hUpdown)
1219         DestroyWindow(infoPtr->hUpdown);
1220     if (infoPtr->hMonthCal)
1221         DestroyWindow(infoPtr->hMonthCal);
1222     SetWindowLongPtrW( infoPtr->hwndSelf, 0, 0 ); /* clear infoPtr */
1223     Free (infoPtr);
1224     return 0;
1225 }
1226
1227
1228 static LRESULT WINAPI
1229 DATETIME_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1230 {
1231     DATETIME_INFO *infoPtr = ((DATETIME_INFO *)GetWindowLongPtrW (hwnd, 0));
1232     LRESULT ret;
1233
1234     TRACE ("%x, %x, %lx\n", uMsg, wParam, lParam);
1235
1236     if (!infoPtr && (uMsg != WM_CREATE) && (uMsg != WM_NCCREATE))
1237         return DefWindowProcW( hwnd, uMsg, wParam, lParam );
1238
1239     switch (uMsg) {
1240
1241     case DTM_GETSYSTEMTIME:
1242         return DATETIME_GetSystemTime (infoPtr, (SYSTEMTIME *) lParam);
1243
1244     case DTM_SETSYSTEMTIME:
1245         return DATETIME_SetSystemTime (infoPtr, wParam, (SYSTEMTIME *) lParam);
1246
1247     case DTM_GETRANGE:
1248         ret = SendMessageW (infoPtr->hMonthCal, MCM_GETRANGE, wParam, lParam);
1249         return ret ? ret : 1; /* bug emulation */
1250
1251     case DTM_SETRANGE:
1252         return SendMessageW (infoPtr->hMonthCal, MCM_SETRANGE, wParam, lParam);
1253
1254     case DTM_SETFORMATA:
1255         return DATETIME_SetFormatA (infoPtr, (LPCSTR)lParam);
1256
1257     case DTM_SETFORMATW:
1258         return DATETIME_SetFormatW (infoPtr, (LPCWSTR)lParam);
1259
1260     case DTM_GETMONTHCAL:
1261         return (LRESULT)infoPtr->hMonthCal;
1262
1263     case DTM_SETMCCOLOR:
1264         return SendMessageW (infoPtr->hMonthCal, MCM_SETCOLOR, wParam, lParam);
1265
1266     case DTM_GETMCCOLOR:
1267         return SendMessageW (infoPtr->hMonthCal, MCM_GETCOLOR, wParam, 0);
1268
1269     case DTM_SETMCFONT:
1270         return SendMessageW (infoPtr->hMonthCal, WM_SETFONT, wParam, lParam);
1271
1272     case DTM_GETMCFONT:
1273         return SendMessageW (infoPtr->hMonthCal, WM_GETFONT, wParam, lParam);
1274
1275     case WM_NOTIFY:
1276         return DATETIME_Notify (infoPtr, (int)wParam, (LPNMHDR)lParam);
1277
1278     case WM_ENABLE:
1279         return DATETIME_Enable (infoPtr, (BOOL)wParam);
1280
1281     case WM_ERASEBKGND:
1282         return DATETIME_EraseBackground (infoPtr, (HDC)wParam);
1283
1284     case WM_GETDLGCODE:
1285         return DLGC_WANTARROWS | DLGC_WANTCHARS;
1286
1287     case WM_PRINTCLIENT:
1288     case WM_PAINT:
1289         return DATETIME_Paint (infoPtr, (HDC)wParam);
1290
1291     case WM_KEYDOWN:
1292         return DATETIME_KeyDown (infoPtr, wParam, lParam);
1293
1294     case WM_KILLFOCUS:
1295         return DATETIME_KillFocus (infoPtr, (HWND)wParam);
1296
1297     case WM_NCCREATE:
1298         return DATETIME_NCCreate (hwnd, (LPCREATESTRUCTW)lParam);
1299
1300     case WM_SETFOCUS:
1301         return DATETIME_SetFocus (infoPtr, (HWND)wParam);
1302
1303     case WM_SIZE:
1304         return DATETIME_Size (infoPtr, wParam, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
1305
1306     case WM_LBUTTONDOWN:
1307         return DATETIME_LButtonDown (infoPtr, (WORD)wParam, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
1308
1309     case WM_LBUTTONUP:
1310         return DATETIME_LButtonUp (infoPtr, (WORD)wParam);
1311
1312     case WM_VSCROLL:
1313         return DATETIME_VScroll (infoPtr, (WORD)wParam);
1314
1315     case WM_CREATE:
1316         return DATETIME_Create (hwnd, (LPCREATESTRUCTW)lParam);
1317
1318     case WM_DESTROY:
1319         return DATETIME_Destroy (infoPtr);
1320
1321     case WM_COMMAND:
1322         return DATETIME_Command (infoPtr, wParam, lParam);
1323
1324     case WM_STYLECHANGED:
1325         return DATETIME_StyleChanged(infoPtr, wParam, (LPSTYLESTRUCT)lParam);
1326
1327     case WM_SETFONT:
1328         return DATETIME_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
1329
1330     case WM_GETFONT:
1331         return (LRESULT) infoPtr->hFont;
1332
1333     default:
1334         if ((uMsg >= WM_USER) && (uMsg < WM_APP))
1335                 ERR("unknown msg %04x wp=%08x lp=%08lx\n",
1336                      uMsg, wParam, lParam);
1337         return DefWindowProcW (hwnd, uMsg, wParam, lParam);
1338     }
1339 }
1340
1341
1342 void
1343 DATETIME_Register (void)
1344 {
1345     WNDCLASSW wndClass;
1346
1347     ZeroMemory (&wndClass, sizeof(WNDCLASSW));
1348     wndClass.style         = CS_GLOBALCLASS;
1349     wndClass.lpfnWndProc   = DATETIME_WindowProc;
1350     wndClass.cbClsExtra    = 0;
1351     wndClass.cbWndExtra    = sizeof(DATETIME_INFO *);
1352     wndClass.hCursor       = LoadCursorW (0, (LPCWSTR)IDC_ARROW);
1353     wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
1354     wndClass.lpszClassName = DATETIMEPICK_CLASSW;
1355
1356     RegisterClassW (&wndClass);
1357 }
1358
1359
1360 void
1361 DATETIME_Unregister (void)
1362 {
1363     UnregisterClassW (DATETIMEPICK_CLASSW, NULL);
1364 }