dlls/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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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  bDropdownEnabled;
  76     int  select;
  77     HFONT hFont;
  78     int nrFieldsAllocated;
  79     int nrFields;
  80     int haveFocus;
  81     int *fieldspec;
  82     RECT *fieldRect;
  83     int  *buflen;
  84     WCHAR textbuf[256];
  85     POINT monthcal_pos;
  86     int pendingUpdown;
  87 } DATETIME_INFO, *LPDATETIME_INFO;
  88
  89 /* in monthcal.c */
  90 extern int MONTHCAL_MonthLength(int month, int year);
  91
  92 /* this list of defines is closely related to `allowedformatchars' defined
  93  * in datetime.c; the high nibble indicates the `base type' of the format
  94  * specifier.
  95  * Do not change without first reading DATETIME_UseFormat.
  96  *
  97  */
  98
  99 #define DT_END_FORMAT      0
 100 #define ONEDIGITDAY     0x01
 101 #define TWODIGITDAY     0x02
 102 #define THREECHARDAY    0x03
 103 #define FULLDAY         0x04
 104 #define ONEDIGIT12HOUR  0x11
 105 #define TWODIGIT12HOUR  0x12
 106 #define ONEDIGIT24HOUR  0x21
 107 #define TWODIGIT24HOUR  0x22
 108 #define ONEDIGITMINUTE  0x31
 109 #define TWODIGITMINUTE  0x32
 110 #define ONEDIGITMONTH   0x41
 111 #define TWODIGITMONTH   0x42
 112 #define THREECHARMONTH  0x43
 113 #define FULLMONTH       0x44
 114 #define ONEDIGITSECOND  0x51
 115 #define TWODIGITSECOND  0x52
 116 #define ONELETTERAMPM   0x61
 117 #define TWOLETTERAMPM   0x62
 118 #define ONEDIGITYEAR    0x71
 119 #define TWODIGITYEAR    0x72
 120 #define INVALIDFULLYEAR 0x73      /* FIXME - yyy is not valid - we'll treat it as yyyy */
 121 #define FULLYEAR        0x74
 122 #define FORMATCALLBACK  0x81      /* -> maximum of 0x80 callbacks possible */
 123 #define FORMATCALLMASK  0x80
 124 #define DT_STRING       0x0100
 125
 126 #define DTHT_DATEFIELD  0xff      /* for hit-testing */
 127
 128 #define DTHT_NONE     0
 129 #define DTHT_CHECKBOX 0x200     /* these should end at '00' , to make */
 130 #define DTHT_MCPOPUP  0x300     /* & DTHT_DATEFIELD 0 when DATETIME_KeyDown */
 131 #define DTHT_GOTFOCUS 0x400     /* tests for date-fields */
 132
 133 static BOOL DATETIME_SendSimpleNotify (const DATETIME_INFO *infoPtr, UINT code);
 134 static BOOL DATETIME_SendDateTimeChangeNotify (const DATETIME_INFO *infoPtr);
 135 extern void MONTHCAL_CopyTime(const SYSTEMTIME *from, SYSTEMTIME *to);
 136 static const WCHAR allowedformatchars[] = {'d', 'h', 'H', 'm', 'M', 's', 't', 'y', 'X', 0};
 137 static const int maxrepetition [] = {4,2,2,2,4,2,2,4,-1};
 138
 139
 140 static DWORD
 141 DATETIME_GetSystemTime (const DATETIME_INFO *infoPtr, SYSTEMTIME *lprgSysTimeArray)
 142 {
 143     if (!lprgSysTimeArray) return GDT_NONE;
 144
 145     if ((infoPtr->dwStyle & DTS_SHOWNONE) &&
 146         (SendMessageW (infoPtr->hwndCheckbut, BM_GETCHECK, 0, 0) == BST_UNCHECKED))
 147         return GDT_NONE;
 148
 149     MONTHCAL_CopyTime (&infoPtr->date, lprgSysTimeArray);
 150
 151     return GDT_VALID;
 152 }
 153
 154
 155 static BOOL
 156 DATETIME_SetSystemTime (DATETIME_INFO *infoPtr, DWORD flag, const SYSTEMTIME *lprgSysTimeArray)
 157 {
 158     if (!lprgSysTimeArray) return 0;
 159
 160     TRACE("%04d/%02d/%02d %02d:%02d:%02d\n",
 161           lprgSysTimeArray->wYear, lprgSysTimeArray->wMonth, lprgSysTimeArray->wDay,
 162           lprgSysTimeArray->wHour, lprgSysTimeArray->wMinute, lprgSysTimeArray->wSecond);
 163
 164     if (flag == GDT_VALID) {
 165       if (lprgSysTimeArray->wYear < 1601 || lprgSysTimeArray->wYear > 30827 ||
 166           lprgSysTimeArray->wMonth < 1 || lprgSysTimeArray->wMonth > 12 ||
 167           lprgSysTimeArray->wDayOfWeek > 6 ||
 168           lprgSysTimeArray->wDay < 1 || lprgSysTimeArray->wDay > 31 ||
 169           lprgSysTimeArray->wHour > 23 ||
 170           lprgSysTimeArray->wMinute > 59 ||
 171           lprgSysTimeArray->wSecond > 59 ||
 172           lprgSysTimeArray->wMilliseconds > 999
 173           )
 174         return 0;
 175
 176         infoPtr->dateValid = TRUE;
 177         MONTHCAL_CopyTime (lprgSysTimeArray, &infoPtr->date);
 178         SendMessageW (infoPtr->hMonthCal, MCM_SETCURSEL, 0, (LPARAM)(&infoPtr->date));
 179         SendMessageW (infoPtr->hwndCheckbut, BM_SETCHECK, BST_CHECKED, 0);
 180     } else if ((infoPtr->dwStyle & DTS_SHOWNONE) && (flag == GDT_NONE)) {
 181         infoPtr->dateValid = FALSE;
 182         SendMessageW (infoPtr->hwndCheckbut, BM_SETCHECK, BST_UNCHECKED, 0);
 183     }
 184     else
 185         return 0;
 186
 187     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 188     return TRUE;
 189 }
 190
 191
 192 /***
 193  * Split up a formattxt in actions.
 194  * See ms documentation for the meaning of the letter codes/'specifiers'.
 195  *
 196  * Notes:
 197  * *'dddddd' is handled as 'dddd' plus 'dd'.
 198  * *unrecognized formats are strings (here given the type DT_STRING;
 199  * start of the string is encoded in lower bits of DT_STRING.
 200  * Therefore, 'string' ends finally up as '<show seconds>tring'.
 201  *
 202  */
 203 static void
 204 DATETIME_UseFormat (DATETIME_INFO *infoPtr, LPCWSTR formattxt)
 205 {
 206     unsigned int i;
 207     int j, k, len;
 208     BOOL inside_literal = FALSE; /* inside '...' */
 209     int *nrFields = &infoPtr->nrFields;
 210
 211     *nrFields = 0;
 212     infoPtr->fieldspec[*nrFields] = 0;
 213     len = strlenW(allowedformatchars);
 214     k = 0;
 215
 216     for (i = 0; formattxt[i]; i++)  {
 217         TRACE ("\n%d %c:", i, formattxt[i]);
 218         if (!inside_literal) {
 219             for (j = 0; j < len; j++) {
 220                 if (allowedformatchars[j]==formattxt[i]) {
 221                     TRACE ("%c[%d,%x]", allowedformatchars[j], *nrFields, infoPtr->fieldspec[*nrFields]);
 222                     if ((*nrFields==0) && (infoPtr->fieldspec[*nrFields]==0)) {
 223                         infoPtr->fieldspec[*nrFields] = (j<<4) + 1;
 224                         break;
 225                     }
 226                     if (infoPtr->fieldspec[*nrFields] >> 4 != j) {
 227                         (*nrFields)++;
 228                         infoPtr->fieldspec[*nrFields] = (j<<4) + 1;
 229                         break;
 230                     }
 231                     if ((infoPtr->fieldspec[*nrFields] & 0x0f) == maxrepetition[j]) {
 232                         (*nrFields)++;
 233                         infoPtr->fieldspec[*nrFields] = (j<<4) + 1;
 234                         break;
 235                     }
 236                     infoPtr->fieldspec[*nrFields]++;
 237                     break;
 238                 }   /* if allowedformatchar */
 239             } /* for j */
 240         }
 241         else
 242             j = len;
 243
 244         if (formattxt[i] == '\'')
 245         {
 246             inside_literal = !inside_literal;
 247             continue;
 248         }
 249
 250         /* char is not a specifier: handle char like a string */
 251         if (j == len) {
 252             if ((*nrFields==0) && (infoPtr->fieldspec[*nrFields]==0)) {
 253                 infoPtr->fieldspec[*nrFields] = DT_STRING + k;
 254                 infoPtr->buflen[*nrFields] = 0;
 255             } else if ((infoPtr->fieldspec[*nrFields] & DT_STRING) != DT_STRING)  {
 256                 (*nrFields)++;
 257                 infoPtr->fieldspec[*nrFields] = DT_STRING + k;
 258                 infoPtr->buflen[*nrFields] = 0;
 259             }
 260             infoPtr->textbuf[k] = formattxt[i];
 261             k++;
 262             infoPtr->buflen[*nrFields]++;
 263         }   /* if j=len */
 264
 265         if (*nrFields == infoPtr->nrFieldsAllocated) {
 266             FIXME ("out of memory; should reallocate. crash ahead.\n");
 267         }
 268     } /* for i */
 269
 270     TRACE("\n");
 271
 272     if (infoPtr->fieldspec[*nrFields] != 0) (*nrFields)++;
 273 }
 274
 275
 276 static BOOL
 277 DATETIME_SetFormatW (DATETIME_INFO *infoPtr, LPCWSTR lpszFormat)
 278 {
 279     if (!lpszFormat) {
 280         WCHAR format_buf[80];
 281         DWORD format_item;
 282
 283         if (infoPtr->dwStyle & DTS_LONGDATEFORMAT)
 284             format_item = LOCALE_SLONGDATE;
 285         else if ((infoPtr->dwStyle & DTS_TIMEFORMAT) == DTS_TIMEFORMAT)
 286             format_item = LOCALE_STIMEFORMAT;
 287         else /* DTS_SHORTDATEFORMAT */
 288             format_item = LOCALE_SSHORTDATE;
 289         GetLocaleInfoW( GetSystemDefaultLCID(), format_item, format_buf, sizeof(format_buf)/sizeof(format_buf[0]));
 290         lpszFormat = format_buf;
 291     }
 292
 293     DATETIME_UseFormat (infoPtr, lpszFormat);
 294     InvalidateRect (infoPtr->hwndSelf, NULL, TRUE);
 295
 296     return 1;
 297 }
 298
 299
 300 static BOOL
 301 DATETIME_SetFormatA (DATETIME_INFO *infoPtr, LPCSTR lpszFormat)
 302 {
 303     if (lpszFormat) {
 304         BOOL retval;
 305         INT len = MultiByteToWideChar(CP_ACP, 0, lpszFormat, -1, NULL, 0);
 306         LPWSTR wstr = Alloc(len * sizeof(WCHAR));
 307         if (wstr) MultiByteToWideChar(CP_ACP, 0, lpszFormat, -1, wstr, len);
 308         retval = DATETIME_SetFormatW (infoPtr, wstr);
 309         Free (wstr);
 310         return retval;
 311     }
 312     else
 313         return DATETIME_SetFormatW (infoPtr, 0);
 314
 315 }
 316
 317
 318 static void
 319 DATETIME_ReturnTxt (const DATETIME_INFO *infoPtr, int count, LPWSTR result, int resultSize)
 320 {
 321     static const WCHAR fmt_dW[] = { '%', 'd', 0 };
 322     static const WCHAR fmt__2dW[] = { '%', '.', '2', 'd', 0 };
 323     static const WCHAR fmt__3sW[] = { '%', '.', '3', 's', 0 };
 324     SYSTEMTIME date = infoPtr->date;
 325     int spec;
 326     WCHAR buffer[80];
 327
 328     *result=0;
 329     TRACE ("%d,%d\n", infoPtr->nrFields, count);
 330     if (count>infoPtr->nrFields || count < 0) {
 331         WARN ("buffer overrun, have %d want %d\n", infoPtr->nrFields, count);
 332         return;
 333     }
 334
 335     if (!infoPtr->fieldspec) return;
 336
 337     spec = infoPtr->fieldspec[count];
 338     if (spec & DT_STRING) {
 339         int txtlen = infoPtr->buflen[count];
 340
 341         if (txtlen > resultSize)
 342             txtlen = resultSize - 1;
 343         memcpy (result, infoPtr->textbuf + (spec &~ DT_STRING), txtlen * sizeof(WCHAR));
 344         result[txtlen] = 0;
 345         TRACE ("arg%d=%x->[%s]\n", count, infoPtr->fieldspec[count], debugstr_w(result));
 346         return;
 347     }
 348
 349
 350     switch (spec) {
 351         case DT_END_FORMAT:
 352             *result = 0;
 353             break;
 354         case ONEDIGITDAY:
 355             wsprintfW (result, fmt_dW, date.wDay);
 356             break;
 357         case TWODIGITDAY:
 358             wsprintfW (result, fmt__2dW, date.wDay);
 359             break;
 360         case THREECHARDAY:
 361             GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_SABBREVDAYNAME1+(date.wDayOfWeek+6)%7, result, 4);
 362             /*wsprintfW (result,"%.3s",days[date.wDayOfWeek]);*/
 363             break;
 364         case FULLDAY:
 365             GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_SDAYNAME1+(date.wDayOfWeek+6)%7, result, resultSize);
 366             break;
 367         case ONEDIGIT12HOUR:
 368             if (date.wHour == 0) {
 369                 result[0] = '1';
 370                 result[1] = '2';
 371                 result[2] = 0;
 372             }
 373             else
 374                 wsprintfW (result, fmt_dW, date.wHour - (date.wHour > 12 ? 12 : 0));
 375             break;
 376         case TWODIGIT12HOUR:
 377             if (date.wHour == 0) {
 378                 result[0] = '1';
 379                 result[1] = '2';
 380                 result[2] = 0;
 381             }
 382             else
 383                 wsprintfW (result, fmt__2dW, date.wHour - (date.wHour > 12 ? 12 : 0));
 384             break;
 385         case ONEDIGIT24HOUR:
 386             wsprintfW (result, fmt_dW, date.wHour);
 387             break;
 388         case TWODIGIT24HOUR:
 389             wsprintfW (result, fmt__2dW, date.wHour);
 390             break;
 391         case ONEDIGITSECOND:
 392             wsprintfW (result, fmt_dW, date.wSecond);
 393             break;
 394         case TWODIGITSECOND:
 395             wsprintfW (result, fmt__2dW, date.wSecond);
 396             break;
 397         case ONEDIGITMINUTE:
 398             wsprintfW (result, fmt_dW, date.wMinute);
 399             break;
 400         case TWODIGITMINUTE:
 401             wsprintfW (result, fmt__2dW, date.wMinute);
 402             break;
 403         case ONEDIGITMONTH:
 404             wsprintfW (result, fmt_dW, date.wMonth);
 405             break;
 406         case TWODIGITMONTH:
 407             wsprintfW (result, fmt__2dW, date.wMonth);
 408             break;
 409         case THREECHARMONTH:
 410             GetLocaleInfoW(GetSystemDefaultLCID(), LOCALE_SMONTHNAME1+date.wMonth -1,
 411                            buffer, sizeof(buffer)/sizeof(buffer[0]));
 412             wsprintfW (result, fmt__3sW, buffer);
 413             break;
 414         case FULLMONTH:
 415             GetLocaleInfoW(GetSystemDefaultLCID(),LOCALE_SMONTHNAME1+date.wMonth -1,
 416                            result, resultSize);
 417             break;
 418         case ONELETTERAMPM:
 419             result[0] = (date.wHour < 12 ? 'A' : 'P');
 420             result[1] = 0;
 421             break;
 422         case TWOLETTERAMPM:
 423             result[0] = (date.wHour < 12 ? 'A' : 'P');
 424             result[1] = 'M';
 425             result[2] = 0;
 426             break;
 427         case FORMATCALLBACK:
 428             FIXME ("Not implemented\n");
 429             result[0] = 'x';
 430             result[1] = 0;
 431             break;
 432         case ONEDIGITYEAR:
 433             wsprintfW (result, fmt_dW, date.wYear-10* (int) floor(date.wYear/10));
 434             break;
 435         case TWODIGITYEAR:
 436             wsprintfW (result, fmt__2dW, date.wYear-100* (int) floor(date.wYear/100));
 437             break;
 438         case INVALIDFULLYEAR:
 439         case FULLYEAR:
 440             wsprintfW (result, fmt_dW, date.wYear);
 441             break;
 442     }
 443
 444     TRACE ("arg%d=%x->[%s]\n", count, infoPtr->fieldspec[count], debugstr_w(result));
 445 }
 446
 447 /* Offsets of days in the week to the weekday of january 1 in a leap year. */
 448 static const int DayOfWeekTable[] = {0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4};
 449
 450 /* returns the day in the week(0 == sunday, 6 == saturday) */
 451 /* day(1 == 1st, 2 == 2nd... etc), year is the  year value */
 452 static int DATETIME_CalculateDayOfWeek(DWORD day, DWORD month, DWORD year)
 453 {
 454     year-=(month < 3);
 455
 456     return((year + year/4 - year/100 + year/400 +
 457          DayOfWeekTable[month-1] + day ) % 7);
 458 }
 459
 460 static int wrap(int val, int delta, int minVal, int maxVal)
 461 {
 462     val += delta;
 463     if (delta == INT_MIN || val < minVal) return maxVal;
 464     if (delta == INT_MAX || val > maxVal) return minVal;
 465     return val;
 466 }
 467
 468 static void
 469 DATETIME_IncreaseField (DATETIME_INFO *infoPtr, int number, int delta)
 470 {
 471     SYSTEMTIME *date = &infoPtr->date;
 472
 473     TRACE ("%d\n", number);
 474     if ((number > infoPtr->nrFields) || (number < 0)) return;
 475
 476     if ((infoPtr->fieldspec[number] & DTHT_DATEFIELD) == 0) return;
 477
 478     switch (infoPtr->fieldspec[number]) {
 479         case ONEDIGITYEAR:
 480         case TWODIGITYEAR:
 481         case FULLYEAR:
 482             date->wYear = wrap(date->wYear, delta, 1752, 9999);
 483             date->wDayOfWeek = DATETIME_CalculateDayOfWeek(date->wDay,date->wMonth,date->wYear);
 484             break;
 485         case ONEDIGITMONTH:
 486         case TWODIGITMONTH:
 487         case THREECHARMONTH:
 488         case FULLMONTH:
 489             date->wMonth = wrap(date->wMonth, delta, 1, 12);
 490             date->wDayOfWeek = DATETIME_CalculateDayOfWeek(date->wDay,date->wMonth,date->wYear);
 491             delta = 0;
 492             /* fall through */
 493         case ONEDIGITDAY:
 494         case TWODIGITDAY:
 495         case THREECHARDAY:
 496         case FULLDAY:
 497             date->wDay = wrap(date->wDay, delta, 1, MONTHCAL_MonthLength(date->wMonth, date->wYear));
 498             date->wDayOfWeek = DATETIME_CalculateDayOfWeek(date->wDay,date->wMonth,date->wYear);
 499             break;
 500         case ONELETTERAMPM:
 501         case TWOLETTERAMPM:
 502             delta *= 12;
 503             /* fall through */
 504         case ONEDIGIT12HOUR:
 505         case TWODIGIT12HOUR:
 506         case ONEDIGIT24HOUR:
 507         case TWODIGIT24HOUR:
 508             date->wHour = wrap(date->wHour, delta, 0, 23);
 509             break;
 510         case ONEDIGITMINUTE:
 511         case TWODIGITMINUTE:
 512             date->wMinute = wrap(date->wMinute, delta, 0, 59);
 513             break;
 514         case ONEDIGITSECOND:
 515         case TWODIGITSECOND:
 516             date->wSecond = wrap(date->wSecond, delta, 0, 59);
 517             break;
 518         case FORMATCALLBACK:
 519             FIXME ("Not implemented\n");
 520             break;
 521     }
 522
 523     /* FYI: On 1752/9/14 the calendar changed and England and the
 524      * American colonies changed to the Gregorian calendar. This change
 525      * involved having September 14th follow September 2nd. So no date
 526      * algorithm works before that date.
 527      */
 528     if (10000 * date->wYear + 100 * date->wMonth + date->wDay < 17520914) {
 529         date->wYear = 1752;
 530         date->wMonth = 9;
 531         date->wDay = 14;
 532         date->wSecond = 0;
 533         date->wMinute = 0;
 534         date->wHour = 0;
 535     }
 536 }
 537
 538
 539 static void
 540 DATETIME_ReturnFieldWidth (const DATETIME_INFO *infoPtr, HDC hdc, int count, SHORT *fieldWidthPtr)
 541 {
 542     /* fields are a fixed width, determined by the largest possible string */
 543     /* presumably, these widths should be language dependent */
 544     static const WCHAR fld_d1W[] = { '2', 0 };
 545     static const WCHAR fld_d2W[] = { '2', '2', 0 };
 546     static const WCHAR fld_d4W[] = { '2', '2', '2', '2', 0 };
 547     static const WCHAR fld_am1[] = { 'A', 0 };
 548     static const WCHAR fld_am2[] = { 'A', 'M', 0 };
 549     static const WCHAR fld_day[] = { 'W', 'e', 'd', 'n', 'e', 's', 'd', 'a', 'y', 0 };
 550     static const WCHAR fld_day3[] = { 'W', 'e', 'd', 0 };
 551     static const WCHAR fld_mon[] = { 'S', 'e', 'p', 't', 'e', 'm', 'b', 'e', 'r', 0 };
 552     static const WCHAR fld_mon3[] = { 'D', 'e', 'c', 0 };
 553     int spec;
 554     WCHAR buffer[80];
 555     LPCWSTR bufptr;
 556     SIZE size;
 557
 558     TRACE ("%d,%d\n", infoPtr->nrFields, count);
 559     if (count>infoPtr->nrFields || count < 0) {
 560         WARN ("buffer overrun, have %d want %d\n", infoPtr->nrFields, count);
 561         return;
 562     }
 563
 564     if (!infoPtr->fieldspec) return;
 565
 566     spec = infoPtr->fieldspec[count];
 567     if (spec & DT_STRING) {
 568         int txtlen = infoPtr->buflen[count];
 569
 570         if (txtlen > 79)
 571             txtlen = 79;
 572         memcpy (buffer, infoPtr->textbuf + (spec &~ DT_STRING), txtlen * sizeof(WCHAR));
 573         buffer[txtlen] = 0;
 574         bufptr = buffer;
 575     }
 576     else {
 577         switch (spec) {
 578             case ONEDIGITDAY:
 579             case ONEDIGIT12HOUR:
 580             case ONEDIGIT24HOUR:
 581             case ONEDIGITSECOND:
 582             case ONEDIGITMINUTE:
 583             case ONEDIGITMONTH:
 584             case ONEDIGITYEAR:
 585                 /* these seem to use a two byte field */
 586             case TWODIGITDAY:
 587             case TWODIGIT12HOUR:
 588             case TWODIGIT24HOUR:
 589             case TWODIGITSECOND:
 590             case TWODIGITMINUTE:
 591             case TWODIGITMONTH:
 592             case TWODIGITYEAR:
 593                 bufptr = fld_d2W;
 594                 break;
 595             case INVALIDFULLYEAR:
 596             case FULLYEAR:
 597                 bufptr = fld_d4W;
 598                 break;
 599             case THREECHARDAY:
 600                 bufptr = fld_day3;
 601                 break;
 602             case FULLDAY:
 603                 bufptr = fld_day;
 604                 break;
 605             case THREECHARMONTH:
 606                 bufptr = fld_mon3;
 607                 break;
 608             case FULLMONTH:
 609                 bufptr = fld_mon;
 610                 break;
 611             case ONELETTERAMPM:
 612                 bufptr = fld_am1;
 613                 break;
 614             case TWOLETTERAMPM:
 615                 bufptr = fld_am2;
 616                 break;
 617             default:
 618                 bufptr = fld_d1W;
 619                 break;
 620         }
 621     }
 622     GetTextExtentPoint32W (hdc, bufptr, strlenW(bufptr), &size);
 623     *fieldWidthPtr = size.cx;
 624 }
 625
 626 static void
 627 DATETIME_Refresh (DATETIME_INFO *infoPtr, HDC hdc)
 628 {
 629     int i,prevright;
 630     RECT *field;
 631     RECT *rcDraw = &infoPtr->rcDraw;
 632     RECT *calbutton = &infoPtr->calbutton;
 633     RECT *checkbox = &infoPtr->checkbox;
 634     SIZE size;
 635     COLORREF oldTextColor;
 636     SHORT fieldWidth = 0;
 637
 638     /* draw control edge */
 639     TRACE("\n");
 640
 641     if (infoPtr->dateValid) {
 642         HFONT oldFont = SelectObject (hdc, infoPtr->hFont);
 643         INT oldBkMode = SetBkMode (hdc, TRANSPARENT);
 644         WCHAR txt[80];
 645
 646         DATETIME_ReturnTxt (infoPtr, 0, txt, sizeof(txt)/sizeof(txt[0]));
 647         GetTextExtentPoint32W (hdc, txt, strlenW(txt), &size);
 648         rcDraw->bottom = size.cy + 2;
 649
 650         prevright = checkbox->right = ((infoPtr->dwStyle & DTS_SHOWNONE) ? 18 : 2);
 651
 652         for (i = 0; i < infoPtr->nrFields; i++) {
 653             DATETIME_ReturnTxt (infoPtr, i, txt, sizeof(txt)/sizeof(txt[0]));
 654             GetTextExtentPoint32W (hdc, txt, strlenW(txt), &size);
 655             DATETIME_ReturnFieldWidth (infoPtr, hdc, i, &fieldWidth);
 656             field = &infoPtr->fieldRect[i];
 657             field->left  = prevright;
 658             field->right = prevright + fieldWidth;
 659             field->top   = rcDraw->top;
 660             field->bottom = rcDraw->bottom;
 661             prevright = field->right;
 662
 663             if (infoPtr->dwStyle & WS_DISABLED)
 664                 oldTextColor = SetTextColor (hdc, comctl32_color.clrGrayText);
 665             else if ((infoPtr->haveFocus) && (i == infoPtr->select)) {
 666                 /* fill if focussed */
 667                 HBRUSH hbr = CreateSolidBrush (comctl32_color.clrActiveCaption);
 668                 FillRect(hdc, field, hbr);
 669                 DeleteObject (hbr);
 670                 oldTextColor = SetTextColor (hdc, comctl32_color.clrWindow);
 671             }
 672             else
 673                 oldTextColor = SetTextColor (hdc, comctl32_color.clrWindowText);
 674
 675             /* draw the date text using the colour set above */
 676             DrawTextW (hdc, txt, strlenW(txt), field, DT_RIGHT | DT_VCENTER | DT_SINGLELINE);
 677             SetTextColor (hdc, oldTextColor);
 678         }
 679         SetBkMode (hdc, oldBkMode);
 680         SelectObject (hdc, oldFont);
 681     }
 682
 683     if (!(infoPtr->dwStyle & DTS_UPDOWN)) {
 684         DrawFrameControl(hdc, calbutton, DFC_SCROLL,
 685                          DFCS_SCROLLDOWN | (infoPtr->bCalDepressed ? DFCS_PUSHED : 0) |
 686                          (infoPtr->dwStyle & WS_DISABLED ? DFCS_INACTIVE : 0) );
 687     }
 688 }
 689
 690
 691 static INT
 692 DATETIME_HitTest (const DATETIME_INFO *infoPtr, POINT pt)
 693 {
 694     int i;
 695
 696     TRACE ("%d, %d\n", pt.x, pt.y);
 697
 698     if (PtInRect (&infoPtr->calbutton, pt)) return DTHT_MCPOPUP;
 699     if (PtInRect (&infoPtr->checkbox, pt)) return DTHT_CHECKBOX;
 700
 701     for (i=0; i < infoPtr->nrFields; i++) {
 702         if (PtInRect (&infoPtr->fieldRect[i], pt)) return i;
 703     }
 704
 705     return DTHT_NONE;
 706 }
 707
 708
 709 static LRESULT
 710 DATETIME_LButtonDown (DATETIME_INFO *infoPtr, WORD wKey, INT x, INT y)
 711 {
 712     POINT pt;
 713     int old, new;
 714
 715     pt.x = x;
 716     pt.y = y;
 717     old = infoPtr->select;
 718     new = DATETIME_HitTest (infoPtr, pt);
 719
 720     /* FIXME: might be conditions where we don't want to update infoPtr->select */
 721     infoPtr->select = new;
 722
 723     SetFocus(infoPtr->hwndSelf);
 724
 725     if (infoPtr->select == DTHT_MCPOPUP) {
 726         RECT rcMonthCal;
 727         SendMessageW(infoPtr->hMonthCal, MCM_GETMINREQRECT, 0, (LPARAM)&rcMonthCal);
 728
 729         /* FIXME: button actually is only depressed during dropdown of the */
 730         /* calendar control and when the mouse is over the button window */
 731         infoPtr->bCalDepressed = TRUE;
 732
 733         /* recalculate the position of the monthcal popup */
 734         if(infoPtr->dwStyle & DTS_RIGHTALIGN)
 735             infoPtr->monthcal_pos.x = infoPtr->calbutton.left -
 736                 (rcMonthCal.right - rcMonthCal.left);
 737         else
 738             /* FIXME: this should be after the area reserved for the checkbox */
 739             infoPtr->monthcal_pos.x = infoPtr->rcDraw.left;
 740
 741         infoPtr->monthcal_pos.y = infoPtr->rcClient.bottom;
 742         ClientToScreen (infoPtr->hwndSelf, &(infoPtr->monthcal_pos));
 743         SetWindowPos(infoPtr->hMonthCal, 0, infoPtr->monthcal_pos.x,
 744             infoPtr->monthcal_pos.y, rcMonthCal.right - rcMonthCal.left,
 745             rcMonthCal.bottom - rcMonthCal.top, 0);
 746
 747         if(IsWindowVisible(infoPtr->hMonthCal)) {
 748             ShowWindow(infoPtr->hMonthCal, SW_HIDE);
 749         } else {
 750             const SYSTEMTIME *lprgSysTimeArray = &infoPtr->date;
 751             TRACE("update calendar %04d/%02d/%02d\n",
 752             lprgSysTimeArray->wYear, lprgSysTimeArray->wMonth, lprgSysTimeArray->wDay);
 753             SendMessageW(infoPtr->hMonthCal, MCM_SETCURSEL, 0, (LPARAM)(&infoPtr->date));
 754
 755             if (infoPtr->bDropdownEnabled)
 756                 ShowWindow(infoPtr->hMonthCal, SW_SHOW);
 757             infoPtr->bDropdownEnabled = TRUE;
 758         }
 759
 760         TRACE ("dt:%p mc:%p mc parent:%p, desktop:%p\n",
 761                infoPtr->hwndSelf, infoPtr->hMonthCal, infoPtr->hwndNotify, GetDesktopWindow ());
 762         DATETIME_SendSimpleNotify (infoPtr, DTN_DROPDOWN);
 763     }
 764
 765     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 766
 767     return 0;
 768 }
 769
 770
 771 static LRESULT
 772 DATETIME_LButtonUp (DATETIME_INFO *infoPtr, WORD wKey)
 773 {
 774     if(infoPtr->bCalDepressed) {
 775         infoPtr->bCalDepressed = FALSE;
 776         InvalidateRect(infoPtr->hwndSelf, &(infoPtr->calbutton), TRUE);
 777     }
 778
 779     return 0;
 780 }
 781
 782
 783 static LRESULT
 784 DATETIME_Paint (DATETIME_INFO *infoPtr, HDC hdc)
 785 {
 786     if (!hdc) {
 787         PAINTSTRUCT ps;
 788         hdc = BeginPaint (infoPtr->hwndSelf, &ps);
 789         DATETIME_Refresh (infoPtr, hdc);
 790         EndPaint (infoPtr->hwndSelf, &ps);
 791     } else {
 792         DATETIME_Refresh (infoPtr, hdc);
 793     }
 794
 795     /* Not a click on the dropdown box, enabled it */
 796     infoPtr->bDropdownEnabled = TRUE;
 797
 798     return 0;
 799 }
 800
 801
 802 static LRESULT
 803 DATETIME_Button_Command (DATETIME_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 804 {
 805     if( HIWORD(wParam) == BN_CLICKED) {
 806         DWORD state = SendMessageW((HWND)lParam, BM_GETCHECK, 0, 0);
 807         infoPtr->dateValid = (state == BST_CHECKED);
 808         InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 809     }
 810     return 0;
 811 }
 812
 813
 814
 815 static LRESULT
 816 DATETIME_Command (DATETIME_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 817 {
 818     TRACE("hwndbutton = %p\n", infoPtr->hwndCheckbut);
 819     if(infoPtr->hwndCheckbut == (HWND)lParam)
 820         return DATETIME_Button_Command(infoPtr, wParam, lParam);
 821     return 0;
 822 }
 823
 824
 825 static LRESULT
 826 DATETIME_Enable (DATETIME_INFO *infoPtr, BOOL bEnable)
 827 {
 828     TRACE("%p %s\n", infoPtr, bEnable ? "TRUE" : "FALSE");
 829     if (bEnable)
 830         infoPtr->dwStyle &= ~WS_DISABLED;
 831     else
 832         infoPtr->dwStyle |= WS_DISABLED;
 833
 834     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 835
 836     return 0;
 837 }
 838
 839
 840 static LRESULT
 841 DATETIME_EraseBackground (const DATETIME_INFO *infoPtr, HDC hdc)
 842 {
 843     HBRUSH hBrush, hSolidBrush = NULL;
 844     RECT   rc;
 845
 846     if (infoPtr->dwStyle & WS_DISABLED)
 847         hBrush = hSolidBrush = CreateSolidBrush(comctl32_color.clrBtnFace);
 848     else
 849     {
 850         hBrush = (HBRUSH)SendMessageW(infoPtr->hwndNotify, WM_CTLCOLOREDIT,
 851                                       (WPARAM)hdc, (LPARAM)infoPtr->hwndSelf);
 852         if (!hBrush)
 853             hBrush = hSolidBrush = CreateSolidBrush(comctl32_color.clrWindow);
 854     }
 855
 856     GetClientRect (infoPtr->hwndSelf, &rc);
 857
 858     FillRect (hdc, &rc, hBrush);
 859
 860     if (hSolidBrush)
 861         DeleteObject(hSolidBrush);
 862
 863     return -1;
 864 }
 865
 866
 867 static LRESULT
 868 DATETIME_Notify (DATETIME_INFO *infoPtr, int idCtrl, LPNMHDR lpnmh)
 869 {
 870     TRACE ("Got notification %x from %p\n", lpnmh->code, lpnmh->hwndFrom);
 871     TRACE ("info: %p %p %p\n", infoPtr->hwndSelf, infoPtr->hMonthCal, infoPtr->hUpdown);
 872
 873     if (lpnmh->code == MCN_SELECT) {
 874         ShowWindow(infoPtr->hMonthCal, SW_HIDE);
 875         infoPtr->dateValid = TRUE;
 876         SendMessageW (infoPtr->hMonthCal, MCM_GETCURSEL, 0, (LPARAM)&infoPtr->date);
 877         TRACE("got from calendar %04d/%02d/%02d day of week %d\n",
 878         infoPtr->date.wYear, infoPtr->date.wMonth, infoPtr->date.wDay, infoPtr->date.wDayOfWeek);
 879         SendMessageW (infoPtr->hwndCheckbut, BM_SETCHECK, BST_CHECKED, 0);
 880         InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 881         DATETIME_SendDateTimeChangeNotify (infoPtr);
 882     }
 883     if ((lpnmh->hwndFrom == infoPtr->hUpdown) && (lpnmh->code == UDN_DELTAPOS)) {
 884         LPNMUPDOWN lpnmud = (LPNMUPDOWN)lpnmh;
 885         TRACE("Delta pos %d\n", lpnmud->iDelta);
 886         infoPtr->pendingUpdown = lpnmud->iDelta;
 887     }
 888     return 0;
 889 }
 890
 891
 892 static LRESULT
 893 DATETIME_KeyDown (DATETIME_INFO *infoPtr, DWORD vkCode, LPARAM flags)
 894 {
 895     int fieldNum = infoPtr->select & DTHT_DATEFIELD;
 896     int wrap = 0;
 897
 898     if (!(infoPtr->haveFocus)) return 0;
 899     if ((fieldNum==0) && (infoPtr->select)) return 0;
 900
 901     if (infoPtr->select & FORMATCALLMASK) {
 902         FIXME ("Callbacks not implemented yet\n");
 903     }
 904
 905     if (vkCode >= '0' && vkCode <= '9') {
 906         /* this is a somewhat simplified version of what Windows does */
 907         SYSTEMTIME *date = &infoPtr->date;
 908         switch (infoPtr->fieldspec[fieldNum]) {
 909             case ONEDIGITYEAR:
 910             case TWODIGITYEAR:
 911                 date->wYear = date->wYear - (date->wYear%100) +
 912                         (date->wYear%10)*10 + (vkCode-'0');
 913                 date->wDayOfWeek = DATETIME_CalculateDayOfWeek(
 914                         date->wDay,date->wMonth,date->wYear);
 915                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 916                 break;
 917             case INVALIDFULLYEAR:
 918             case FULLYEAR:
 919                 date->wYear = (date->wYear%1000)*10 + (vkCode-'0');
 920                 date->wDayOfWeek = DATETIME_CalculateDayOfWeek(
 921                         date->wDay,date->wMonth,date->wYear);
 922                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 923                 break;
 924             case ONEDIGITMONTH:
 925             case TWODIGITMONTH:
 926                 if ((date->wMonth%10) > 1 || (vkCode-'0') > 2)
 927                     date->wMonth = vkCode-'0';
 928                 else
 929                     date->wMonth = (date->wMonth%10)*10+vkCode-'0';
 930                 date->wDayOfWeek = DATETIME_CalculateDayOfWeek(
 931                         date->wDay,date->wMonth,date->wYear);
 932                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 933                 break;
 934             case ONEDIGITDAY:
 935             case TWODIGITDAY:
 936                 /* probably better checking here would help */
 937                 if ((date->wDay%10) >= 3 && (vkCode-'0') > 1)
 938                     date->wDay = vkCode-'0';
 939                 else
 940                     date->wDay = (date->wDay%10)*10+vkCode-'0';
 941                 date->wDayOfWeek = DATETIME_CalculateDayOfWeek(
 942                         date->wDay,date->wMonth,date->wYear);
 943                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 944                 break;
 945             case ONEDIGIT12HOUR:
 946             case TWODIGIT12HOUR:
 947                 if ((date->wHour%10) > 1 || (vkCode-'0') > 2)
 948                     date->wHour = vkCode-'0';
 949                 else
 950                     date->wHour = (date->wHour%10)*10+vkCode-'0';
 951                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 952                 break;
 953             case ONEDIGIT24HOUR:
 954             case TWODIGIT24HOUR:
 955                 if ((date->wHour%10) > 2)
 956                     date->wHour = vkCode-'0';
 957                 else if ((date->wHour%10) == 2 && (vkCode-'0') > 3)
 958                     date->wHour = vkCode-'0';
 959                 else
 960                     date->wHour = (date->wHour%10)*10+vkCode-'0';
 961                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 962                 break;
 963             case ONEDIGITMINUTE:
 964             case TWODIGITMINUTE:
 965                 if ((date->wMinute%10) > 5)
 966                     date->wMinute = vkCode-'0';
 967                 else
 968                     date->wMinute = (date->wMinute%10)*10+vkCode-'0';
 969                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 970                 break;
 971             case ONEDIGITSECOND:
 972             case TWODIGITSECOND:
 973                 if ((date->wSecond%10) > 5)
 974                     date->wSecond = vkCode-'0';
 975                 else
 976                     date->wSecond = (date->wSecond%10)*10+vkCode-'0';
 977                 DATETIME_SendDateTimeChangeNotify (infoPtr);
 978                 break;
 979         }
 980     }
 981
 982     switch (vkCode) {
 983         case VK_ADD:
 984         case VK_UP:
 985             DATETIME_IncreaseField (infoPtr, fieldNum, 1);
 986             DATETIME_SendDateTimeChangeNotify (infoPtr);
 987             break;
 988         case VK_SUBTRACT:
 989         case VK_DOWN:
 990             DATETIME_IncreaseField (infoPtr, fieldNum, -1);
 991             DATETIME_SendDateTimeChangeNotify (infoPtr);
 992             break;
 993         case VK_HOME:
 994             DATETIME_IncreaseField (infoPtr, fieldNum, INT_MIN);
 995             DATETIME_SendDateTimeChangeNotify (infoPtr);
 996             break;
 997         case VK_END:
 998             DATETIME_IncreaseField (infoPtr, fieldNum, INT_MAX);
 999             DATETIME_SendDateTimeChangeNotify (infoPtr);
1000             break;
1001         case VK_LEFT:
1002             do {
1003                 if (infoPtr->select == 0) {
1004                     infoPtr->select = infoPtr->nrFields - 1;
1005                     wrap++;
1006                 } else {
1007                     infoPtr->select--;
1008                 }
1009             } while ((infoPtr->fieldspec[infoPtr->select] & DT_STRING) && (wrap<2));
1010             break;
1011         case VK_RIGHT:
1012             do {
1013                 infoPtr->select++;
1014                 if (infoPtr->select==infoPtr->nrFields) {
1015                     infoPtr->select = 0;
1016                     wrap++;
1017                 }
1018             } while ((infoPtr->fieldspec[infoPtr->select] & DT_STRING) && (wrap<2));
1019             break;
1020     }
1021
1022     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
1023
1024     return 0;
1025 }
1026
1027
1028 static LRESULT
1029 DATETIME_VScroll (DATETIME_INFO *infoPtr, WORD wScroll)
1030 {
1031     int fieldNum = infoPtr->select & DTHT_DATEFIELD;
1032
1033     if ((SHORT)LOWORD(wScroll) != SB_THUMBPOSITION) return 0;
1034     if (!(infoPtr->haveFocus)) return 0;
1035     if ((fieldNum==0) && (infoPtr->select)) return 0;
1036
1037     if (infoPtr->pendingUpdown >= 0) {
1038         DATETIME_IncreaseField (infoPtr, fieldNum, 1);
1039         DATETIME_SendDateTimeChangeNotify (infoPtr);
1040     }
1041     else {
1042         DATETIME_IncreaseField (infoPtr, fieldNum, -1);
1043         DATETIME_SendDateTimeChangeNotify (infoPtr);
1044     }
1045
1046     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
1047
1048     return 0;
1049 }
1050
1051
1052 static LRESULT
1053 DATETIME_KillFocus (DATETIME_INFO *infoPtr, HWND lostFocus)
1054 {
1055     TRACE("lost focus to %p\n", lostFocus);
1056
1057     if (infoPtr->haveFocus) {
1058         DATETIME_SendSimpleNotify (infoPtr, NM_KILLFOCUS);
1059         infoPtr->haveFocus = 0;
1060     }
1061
1062     InvalidateRect (infoPtr->hwndSelf, NULL, TRUE);
1063
1064     return 0;
1065 }
1066
1067
1068 static LRESULT
1069 DATETIME_NCCreate (HWND hwnd, const CREATESTRUCTW *lpcs)
1070 {
1071     DWORD dwExStyle = GetWindowLongW(hwnd, GWL_EXSTYLE);
1072     /* force control to have client edge */
1073     dwExStyle |= WS_EX_CLIENTEDGE;
1074     SetWindowLongW(hwnd, GWL_EXSTYLE, dwExStyle);
1075
1076     return DefWindowProcW(hwnd, WM_NCCREATE, 0, (LPARAM)lpcs);
1077 }
1078
1079
1080 static LRESULT
1081 DATETIME_SetFocus (DATETIME_INFO *infoPtr, HWND lostFocus)
1082 {
1083     TRACE("got focus from %p\n", lostFocus);
1084
1085     /* if monthcal is open and it loses focus, close monthcal */
1086     if (infoPtr->hMonthCal && (lostFocus == infoPtr->hMonthCal) &&
1087         IsWindowVisible(infoPtr->hMonthCal))
1088     {
1089         ShowWindow(infoPtr->hMonthCal, SW_HIDE);
1090         DATETIME_SendSimpleNotify(infoPtr, DTN_CLOSEUP);
1091         /* note: this get triggered even if monthcal loses focus to a dropdown
1092          * box click, which occurs without an intermediate WM_PAINT call
1093          */
1094         infoPtr->bDropdownEnabled = FALSE;
1095         return 0;
1096     }
1097
1098     if (infoPtr->haveFocus == 0) {
1099         DATETIME_SendSimpleNotify (infoPtr, NM_SETFOCUS);
1100         infoPtr->haveFocus = DTHT_GOTFOCUS;
1101     }
1102
1103     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1104
1105     return 0;
1106 }
1107
1108
1109 static BOOL
1110 DATETIME_SendDateTimeChangeNotify (const DATETIME_INFO *infoPtr)
1111 {
1112     NMDATETIMECHANGE dtdtc;
1113
1114     dtdtc.nmhdr.hwndFrom = infoPtr->hwndSelf;
1115     dtdtc.nmhdr.idFrom   = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
1116     dtdtc.nmhdr.code     = DTN_DATETIMECHANGE;
1117
1118     dtdtc.dwFlags = (infoPtr->dwStyle & DTS_SHOWNONE) ? GDT_NONE : GDT_VALID;
1119
1120     MONTHCAL_CopyTime (&infoPtr->date, &dtdtc.st);
1121     return (BOOL) SendMessageW (infoPtr->hwndNotify, WM_NOTIFY,
1122                                 dtdtc.nmhdr.idFrom, (LPARAM)&dtdtc);
1123 }
1124
1125
1126 static BOOL
1127 DATETIME_SendSimpleNotify (const DATETIME_INFO *infoPtr, UINT code)
1128 {
1129     NMHDR nmhdr;
1130
1131     TRACE("%x\n", code);
1132     nmhdr.hwndFrom = infoPtr->hwndSelf;
1133     nmhdr.idFrom   = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
1134     nmhdr.code     = code;
1135
1136     return (BOOL) SendMessageW (infoPtr->hwndNotify, WM_NOTIFY,
1137                                 nmhdr.idFrom, (LPARAM)&nmhdr);
1138 }
1139
1140 static LRESULT
1141 DATETIME_Size (DATETIME_INFO *infoPtr, WORD flags, INT width, INT height)
1142 {
1143     /* set size */
1144     infoPtr->rcClient.bottom = height;
1145     infoPtr->rcClient.right = width;
1146
1147     TRACE("Height=%d, Width=%d\n", infoPtr->rcClient.bottom, infoPtr->rcClient.right);
1148
1149     infoPtr->rcDraw = infoPtr->rcClient;
1150
1151     if (infoPtr->dwStyle & DTS_UPDOWN) {
1152         SetWindowPos(infoPtr->hUpdown, NULL,
1153             infoPtr->rcClient.right-14, 0,
1154             15, infoPtr->rcClient.bottom - infoPtr->rcClient.top,
1155             SWP_NOACTIVATE | SWP_NOZORDER);
1156     }
1157     else {
1158         /* set the size of the button that drops the calendar down */
1159         /* FIXME: account for style that allows button on left side */
1160         infoPtr->calbutton.top   = infoPtr->rcDraw.top;
1161         infoPtr->calbutton.bottom= infoPtr->rcDraw.bottom;
1162         infoPtr->calbutton.left  = infoPtr->rcDraw.right-15;
1163         infoPtr->calbutton.right = infoPtr->rcDraw.right;
1164     }
1165
1166     /* set enable/disable button size for show none style being enabled */
1167     /* FIXME: these dimensions are completely incorrect */
1168     infoPtr->checkbox.top = infoPtr->rcDraw.top;
1169     infoPtr->checkbox.bottom = infoPtr->rcDraw.bottom;
1170     infoPtr->checkbox.left = infoPtr->rcDraw.left;
1171     infoPtr->checkbox.right = infoPtr->rcDraw.left + 10;
1172
1173     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1174
1175     return 0;
1176 }
1177
1178
1179 static LRESULT
1180 DATETIME_StyleChanged(DATETIME_INFO *infoPtr, WPARAM wStyleType, const STYLESTRUCT *lpss)
1181 {
1182     static const WCHAR buttonW[] = { 'b', 'u', 't', 't', 'o', 'n', 0 };
1183
1184     TRACE("(styletype=%lx, styleOld=0x%08x, styleNew=0x%08x)\n",
1185           wStyleType, lpss->styleOld, lpss->styleNew);
1186
1187     if (wStyleType != GWL_STYLE) return 0;
1188
1189     infoPtr->dwStyle = lpss->styleNew;
1190
1191     if ( !(lpss->styleOld & DTS_SHOWNONE) && (lpss->styleNew & DTS_SHOWNONE) ) {
1192         infoPtr->hwndCheckbut = CreateWindowExW (0, buttonW, 0, WS_CHILD | WS_VISIBLE | BS_AUTOCHECKBOX,
1193                                                  2, 2, 13, 13, infoPtr->hwndSelf, 0,
1194                                                 (HINSTANCE)GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_HINSTANCE), 0);
1195         SendMessageW (infoPtr->hwndCheckbut, BM_SETCHECK, 1, 0);
1196     }
1197     if ( (lpss->styleOld & DTS_SHOWNONE) && !(lpss->styleNew & DTS_SHOWNONE) ) {
1198         DestroyWindow(infoPtr->hwndCheckbut);
1199         infoPtr->hwndCheckbut = 0;
1200     }
1201     if ( !(lpss->styleOld & DTS_UPDOWN) && (lpss->styleNew & DTS_UPDOWN) ) {
1202         infoPtr->hUpdown = CreateUpDownControl (WS_CHILD | WS_BORDER | WS_VISIBLE, 120, 1, 20, 20,
1203                                                 infoPtr->hwndSelf, 1, 0, 0, UD_MAXVAL, UD_MINVAL, 0);
1204     }
1205     if ( (lpss->styleOld & DTS_UPDOWN) && !(lpss->styleNew & DTS_UPDOWN) ) {
1206         DestroyWindow(infoPtr->hUpdown);
1207         infoPtr->hUpdown = 0;
1208     }
1209
1210     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
1211     return 0;
1212 }
1213
1214
1215 static LRESULT
1216 DATETIME_SetFont (DATETIME_INFO *infoPtr, HFONT font, BOOL repaint)
1217 {
1218     infoPtr->hFont = font;
1219     if (repaint) InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
1220     return 0;
1221 }
1222
1223
1224 static LRESULT
1225 DATETIME_Create (HWND hwnd, const CREATESTRUCTW *lpcs)
1226 {
1227     static const WCHAR SysMonthCal32W[] = { 'S', 'y', 's', 'M', 'o', 'n', 't', 'h', 'C', 'a', 'l', '3', '2', 0 };
1228     DATETIME_INFO *infoPtr = (DATETIME_INFO *)Alloc (sizeof(DATETIME_INFO));
1229     STYLESTRUCT ss = { 0, lpcs->style };
1230
1231     if (!infoPtr) return -1;
1232
1233     infoPtr->hwndSelf = hwnd;
1234     infoPtr->dwStyle = lpcs->style;
1235
1236     infoPtr->nrFieldsAllocated = 32;
1237     infoPtr->fieldspec = (int *) Alloc (infoPtr->nrFieldsAllocated * sizeof(int));
1238     infoPtr->fieldRect = (RECT *) Alloc (infoPtr->nrFieldsAllocated * sizeof(RECT));
1239     infoPtr->buflen = (int *) Alloc (infoPtr->nrFieldsAllocated * sizeof(int));
1240     infoPtr->hwndNotify = lpcs->hwndParent;
1241     infoPtr->select = -1; /* initially, nothing is selected */
1242     infoPtr->bDropdownEnabled = TRUE;
1243
1244     DATETIME_StyleChanged(infoPtr, GWL_STYLE, &ss);
1245     DATETIME_SetFormatW (infoPtr, 0);
1246
1247     /* create the monthcal control */
1248     infoPtr->hMonthCal = CreateWindowExW (0, SysMonthCal32W, 0, WS_BORDER | WS_POPUP | WS_CLIPSIBLINGS,
1249                                           0, 0, 0, 0, infoPtr->hwndSelf, 0, 0, 0);
1250
1251     /* initialize info structure */
1252     GetLocalTime (&infoPtr->date);
1253     infoPtr->dateValid = TRUE;
1254     infoPtr->hFont = GetStockObject(DEFAULT_GUI_FONT);
1255
1256     SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
1257
1258     return 0;
1259 }
1260
1261
1262
1263 static LRESULT
1264 DATETIME_Destroy (DATETIME_INFO *infoPtr)
1265 {
1266     if (infoPtr->hwndCheckbut)
1267         DestroyWindow(infoPtr->hwndCheckbut);
1268     if (infoPtr->hUpdown)
1269         DestroyWindow(infoPtr->hUpdown);
1270     if (infoPtr->hMonthCal)
1271         DestroyWindow(infoPtr->hMonthCal);
1272     SetWindowLongPtrW( infoPtr->hwndSelf, 0, 0 ); /* clear infoPtr */
1273     Free (infoPtr);
1274     return 0;
1275 }
1276
1277
1278 static LRESULT WINAPI
1279 DATETIME_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1280 {
1281     DATETIME_INFO *infoPtr = ((DATETIME_INFO *)GetWindowLongPtrW (hwnd, 0));
1282     LRESULT ret;
1283
1284     TRACE ("%x, %lx, %lx\n", uMsg, wParam, lParam);
1285
1286     if (!infoPtr && (uMsg != WM_CREATE) && (uMsg != WM_NCCREATE))
1287         return DefWindowProcW( hwnd, uMsg, wParam, lParam );
1288
1289     switch (uMsg) {
1290
1291     case DTM_GETSYSTEMTIME:
1292         return DATETIME_GetSystemTime (infoPtr, (SYSTEMTIME *) lParam);
1293
1294     case DTM_SETSYSTEMTIME:
1295         return DATETIME_SetSystemTime (infoPtr, wParam, (SYSTEMTIME *) lParam);
1296
1297     case DTM_GETRANGE:
1298         ret = SendMessageW (infoPtr->hMonthCal, MCM_GETRANGE, wParam, lParam);
1299         return ret ? ret : 1; /* bug emulation */
1300
1301     case DTM_SETRANGE:
1302         return SendMessageW (infoPtr->hMonthCal, MCM_SETRANGE, wParam, lParam);
1303
1304     case DTM_SETFORMATA:
1305         return DATETIME_SetFormatA (infoPtr, (LPCSTR)lParam);
1306
1307     case DTM_SETFORMATW:
1308         return DATETIME_SetFormatW (infoPtr, (LPCWSTR)lParam);
1309
1310     case DTM_GETMONTHCAL:
1311         return (LRESULT)infoPtr->hMonthCal;
1312
1313     case DTM_SETMCCOLOR:
1314         return SendMessageW (infoPtr->hMonthCal, MCM_SETCOLOR, wParam, lParam);
1315
1316     case DTM_GETMCCOLOR:
1317         return SendMessageW (infoPtr->hMonthCal, MCM_GETCOLOR, wParam, 0);
1318
1319     case DTM_SETMCFONT:
1320         return SendMessageW (infoPtr->hMonthCal, WM_SETFONT, wParam, lParam);
1321
1322     case DTM_GETMCFONT:
1323         return SendMessageW (infoPtr->hMonthCal, WM_GETFONT, wParam, lParam);
1324
1325     case WM_NOTIFY:
1326         return DATETIME_Notify (infoPtr, (int)wParam, (LPNMHDR)lParam);
1327
1328     case WM_ENABLE:
1329         return DATETIME_Enable (infoPtr, (BOOL)wParam);
1330
1331     case WM_ERASEBKGND:
1332         return DATETIME_EraseBackground (infoPtr, (HDC)wParam);
1333
1334     case WM_GETDLGCODE:
1335         return DLGC_WANTARROWS | DLGC_WANTCHARS;
1336
1337     case WM_PRINTCLIENT:
1338     case WM_PAINT:
1339         return DATETIME_Paint (infoPtr, (HDC)wParam);
1340
1341     case WM_KEYDOWN:
1342         return DATETIME_KeyDown (infoPtr, wParam, lParam);
1343
1344     case WM_KILLFOCUS:
1345         return DATETIME_KillFocus (infoPtr, (HWND)wParam);
1346
1347     case WM_NCCREATE:
1348         return DATETIME_NCCreate (hwnd, (LPCREATESTRUCTW)lParam);
1349
1350     case WM_SETFOCUS:
1351         return DATETIME_SetFocus (infoPtr, (HWND)wParam);
1352
1353     case WM_SIZE:
1354         return DATETIME_Size (infoPtr, wParam, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
1355
1356     case WM_LBUTTONDOWN:
1357         return DATETIME_LButtonDown (infoPtr, (WORD)wParam, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
1358
1359     case WM_LBUTTONUP:
1360         return DATETIME_LButtonUp (infoPtr, (WORD)wParam);
1361
1362     case WM_VSCROLL:
1363         return DATETIME_VScroll (infoPtr, (WORD)wParam);
1364
1365     case WM_CREATE:
1366         return DATETIME_Create (hwnd, (LPCREATESTRUCTW)lParam);
1367
1368     case WM_DESTROY:
1369         return DATETIME_Destroy (infoPtr);
1370
1371     case WM_COMMAND:
1372         return DATETIME_Command (infoPtr, wParam, lParam);
1373
1374     case WM_STYLECHANGED:
1375         return DATETIME_StyleChanged(infoPtr, wParam, (LPSTYLESTRUCT)lParam);
1376
1377     case WM_SETFONT:
1378         return DATETIME_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
1379
1380     case WM_GETFONT:
1381         return (LRESULT) infoPtr->hFont;
1382
1383     default:
1384         if ((uMsg >= WM_USER) && (uMsg < WM_APP))
1385                 ERR("unknown msg %04x wp=%08lx lp=%08lx\n",
1386                      uMsg, wParam, lParam);
1387         return DefWindowProcW (hwnd, uMsg, wParam, lParam);
1388     }
1389 }
1390
1391
1392 void
1393 DATETIME_Register (void)
1394 {
1395     WNDCLASSW wndClass;
1396
1397     ZeroMemory (&wndClass, sizeof(WNDCLASSW));
1398     wndClass.style         = CS_GLOBALCLASS;
1399     wndClass.lpfnWndProc   = DATETIME_WindowProc;
1400     wndClass.cbClsExtra    = 0;
1401     wndClass.cbWndExtra    = sizeof(DATETIME_INFO *);
1402     wndClass.hCursor       = LoadCursorW (0, (LPCWSTR)IDC_ARROW);
1403     wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
1404     wndClass.lpszClassName = DATETIMEPICK_CLASSW;
1405
1406     RegisterClassW (&wndClass);
1407 }
1408
1409
1410 void
1411 DATETIME_Unregister (void)
1412 {
1413     UnregisterClassW (DATETIMEPICK_CLASSW, NULL);
1414 }