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Wine Cross Reference
wine/dlls/comctl32/monthcal.c

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  1 /* Month calendar control
  2 
  3  *
  4  * Copyright 1998, 1999 Eric Kohl (ekohl@abo.rhein-zeitung.de)
  5  * Copyright 1999 Alex Priem (alexp@sci.kun.nl)
  6  * Copyright 1999 Chris Morgan <cmorgan@wpi.edu> and
  7  *                James Abbatiello <abbeyj@wpi.edu>
  8  * Copyright 2000 Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>
  9  *
 10  * This library is free software; you can redistribute it and/or
 11  * modify it under the terms of the GNU Lesser General Public
 12  * License as published by the Free Software Foundation; either
 13  * version 2.1 of the License, or (at your option) any later version.
 14  *
 15  * This library is distributed in the hope that it will be useful,
 16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 18  * Lesser General Public License for more details.
 19  *
 20  * You should have received a copy of the GNU Lesser General Public
 21  * License along with this library; if not, write to the Free Software
 22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 23  *
 24  * NOTE
 25  * 
 26  * This code was audited for completeness against the documented features
 27  * of Comctl32.dll version 6.0 on Oct. 20, 2004, by Dimitrie O. Paun.
 28  * 
 29  * Unless otherwise noted, we believe this code to be complete, as per
 30  * the specification mentioned above.
 31  * If you discover missing features, or bugs, please note them below.
 32  * 
 33  * TODO:
 34  *    -- MCM_[GS]ETUNICODEFORMAT
 35  *    -- MONTHCAL_GetMonthRange
 36  *    -- handle resources better (doesn't work now); 
 37  *    -- take care of internationalization.
 38  *    -- keyboard handling.
 39  *    -- GetRange: At the moment, we copy ranges anyway, regardless of
 40  *                 infoPtr->rangeValid; an invalid range is simply filled 
 41  *                 with zeros in SetRange.  Is this the right behavior?
 42  *    -- search for FIXME
 43  */
 44 
 45 #include <math.h>
 46 #include <stdarg.h>
 47 #include <stdio.h>
 48 #include <stdlib.h>
 49 #include <string.h>
 50 
 51 #include "windef.h"
 52 #include "winbase.h"
 53 #include "wingdi.h"
 54 #include "winuser.h"
 55 #include "winnls.h"
 56 #include "commctrl.h"
 57 #include "comctl32.h"
 58 #include "uxtheme.h"
 59 #include "tmschema.h"
 60 #include "wine/unicode.h"
 61 #include "wine/debug.h"
 62 
 63 WINE_DEFAULT_DEBUG_CHANNEL(monthcal);
 64 
 65 #define MC_SEL_LBUTUP       1   /* Left button released */
 66 #define MC_SEL_LBUTDOWN     2   /* Left button pressed in calendar */
 67 #define MC_PREVPRESSED      4   /* Prev month button pressed */
 68 #define MC_NEXTPRESSED      8   /* Next month button pressed */
 69 #define MC_NEXTMONTHDELAY   350 /* when continuously pressing `next */
 70                                                                                 /* month', wait 500 ms before going */
 71                                                                                 /* to the next month */
 72 #define MC_NEXTMONTHTIMER   1                   /* Timer ID's */
 73 #define MC_PREVMONTHTIMER   2
 74 
 75 #define countof(arr) (sizeof(arr)/sizeof(arr[0]))
 76 
 77 typedef struct
 78 {
 79     HWND        hwndSelf;
 80     DWORD       dwStyle; /* cached GWL_STYLE */
 81     COLORREF    bk;
 82     COLORREF    txt;
 83     COLORREF    titlebk;
 84     COLORREF    titletxt;
 85     COLORREF    monthbk;
 86     COLORREF    trailingtxt;
 87     HFONT       hFont;
 88     HFONT       hBoldFont;
 89     int         textHeight;
 90     int         textWidth;
 91     int         height_increment;
 92     int         width_increment;
 93     int         firstDayplace; /* place of the first day of the current month */
 94     INT         delta;  /* scroll rate; # of months that the */
 95                         /* control moves when user clicks a scroll button */
 96     int         visible;        /* # of months visible */
 97     int         firstDay;       /* Start month calendar with firstDay's day */
 98     int         firstDayHighWord;    /* High word only used externally */
 99     int         monthRange;
100     MONTHDAYSTATE *monthdayState;
101     SYSTEMTIME  todaysDate;
102     DWORD       currentMonth;
103     DWORD       currentYear;
104     int         status;         /* See MC_SEL flags */
105     int         curSelDay;      /* current selected day */
106     int         firstSelDay;    /* first selected day */
107     INT         maxSelCount;
108     SYSTEMTIME  minSel;
109     SYSTEMTIME  maxSel;
110     DWORD       rangeValid;
111     SYSTEMTIME  minDate;
112     SYSTEMTIME  maxDate;
113 
114     RECT title;         /* rect for the header above the calendar */
115     RECT titlebtnnext;  /* the `next month' button in the header */
116     RECT titlebtnprev;  /* the `prev month' button in the header */
117     RECT titlemonth;    /* the `month name' txt in the header */
118     RECT titleyear;     /* the `year number' txt in the header */
119     RECT wdays;         /* week days at top */
120     RECT days;          /* calendar area */
121     RECT weeknums;      /* week numbers at left side */
122     RECT todayrect;     /* `today: xx/xx/xx' text rect */
123     HWND hwndNotify;    /* Window to receive the notifications */
124     HWND hWndYearEdit;  /* Window Handle of edit box to handle years */
125     HWND hWndYearUpDown;/* Window Handle of updown box to handle years */
126 } MONTHCAL_INFO, *LPMONTHCAL_INFO;
127 
128 
129 /* Offsets of days in the week to the weekday of january 1 in a leap year */
130 static const int DayOfWeekTable[] = {0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4};
131 
132 static const WCHAR themeClass[] = { 'S','c','r','o','l','l','b','a','r',0 };
133 
134 #define MONTHCAL_GetInfoPtr(hwnd) ((MONTHCAL_INFO *)GetWindowLongPtrW(hwnd, 0))
135 
136 /* helper functions  */
137 
138 /* returns the number of days in any given month, checking for leap days */
139 /* january is 1, december is 12 */
140 int MONTHCAL_MonthLength(int month, int year)
141 {
142   const int mdays[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 0};
143   /*Wrap around, this eases handling*/
144   if(month == 0)
145     month = 12;
146   if(month == 13)
147     month = 1;
148 
149   /* if we have a leap year add 1 day to February */
150   /* a leap year is a year either divisible by 400 */
151   /* or divisible by 4 and not by 100 */
152   if(month == 2) { /* February */
153     return mdays[month - 1] + ((year%400 == 0) ? 1 : ((year%100 != 0) &&
154      (year%4 == 0)) ? 1 : 0);
155   }
156   else {
157     return mdays[month - 1];
158   }
159 }
160 
161 /* compares timestamps using date part only */
162 static inline BOOL MONTHCAL_IsDateEqual(const SYSTEMTIME *first, const SYSTEMTIME *second)
163 {
164   return (first->wYear == second->wYear) && (first->wMonth == second->wMonth) &&
165          (first->wDay  == second->wDay);
166 }
167 
168 /* make sure that time is valid */
169 static BOOL MONTHCAL_ValidateTime(SYSTEMTIME time)
170 {
171   if(time.wMonth < 1 || time.wMonth > 12 ) return FALSE;
172   if(time.wDayOfWeek > 6) return FALSE;
173   if(time.wDay > MONTHCAL_MonthLength(time.wMonth, time.wYear))
174           return FALSE;
175 
176   return TRUE;
177 }
178 
179 
180 /* Note:Depending on DST, this may be offset by a day.
181    Need to find out if we're on a DST place & adjust the clock accordingly.
182    Above function assumes we have a valid data.
183    Valid for year>1752;  1 <= d <= 31, 1 <= m <= 12.
184    0 = Sunday.
185 */
186 
187 /* returns the day in the week(0 == sunday, 6 == saturday) */
188 /* day(1 == 1st, 2 == 2nd... etc), year is the  year value */
189 static int MONTHCAL_CalculateDayOfWeek(DWORD day, DWORD month, DWORD year)
190 {
191   year-=(month < 3);
192 
193   return((year + year/4 - year/100 + year/400 +
194          DayOfWeekTable[month-1] + day ) % 7);
195 }
196 
197 /* From a given point, calculate the row (weekpos), column(daypos)
198    and day in the calendar. day== 0 mean the last day of tha last month
199 */
200 static int MONTHCAL_CalcDayFromPos(const MONTHCAL_INFO *infoPtr, int x, int y,
201                                    int *daypos,int *weekpos)
202 {
203   int retval, firstDay;
204   RECT rcClient;
205 
206   GetClientRect(infoPtr->hwndSelf, &rcClient);
207 
208   /* if the point is outside the x bounds of the window put
209   it at the boundary */
210   if (x > rcClient.right)
211     x = rcClient.right;
212 
213 
214   *daypos = (x - infoPtr->days.left ) / infoPtr->width_increment;
215   *weekpos = (y - infoPtr->days.top ) / infoPtr->height_increment;
216 
217   firstDay = (MONTHCAL_CalculateDayOfWeek(1, infoPtr->currentMonth, infoPtr->currentYear)+6 - infoPtr->firstDay)%7;
218   retval = *daypos + (7 * *weekpos) - firstDay;
219   return retval;
220 }
221 
222 /* day is the day of the month, 1 == 1st day of the month */
223 /* sets x and y to be the position of the day */
224 /* x == day, y == week where(0,0) == firstDay, 1st week */
225 static void MONTHCAL_CalcDayXY(const MONTHCAL_INFO *infoPtr, int day, int month,
226                                  int *x, int *y)
227 {
228   int firstDay, prevMonth;
229 
230   firstDay = (MONTHCAL_CalculateDayOfWeek(1, infoPtr->currentMonth, infoPtr->currentYear) +6 - infoPtr->firstDay)%7;
231 
232   if(month==infoPtr->currentMonth) {
233     *x = (day + firstDay) % 7;
234     *y = (day + firstDay - *x) / 7;
235     return;
236   }
237   if(month < infoPtr->currentMonth) {
238     prevMonth = month - 1;
239     if(prevMonth==0)
240        prevMonth = 12;
241 
242     *x = (MONTHCAL_MonthLength(prevMonth, infoPtr->currentYear) - firstDay) % 7;
243     *y = 0;
244     return;
245   }
246 
247   *y = MONTHCAL_MonthLength(month, infoPtr->currentYear - 1) / 7;
248   *x = (day + firstDay + MONTHCAL_MonthLength(month,
249        infoPtr->currentYear)) % 7;
250 }
251 
252 
253 /* x: column(day), y: row(week) */
254 static void MONTHCAL_CalcDayRect(const MONTHCAL_INFO *infoPtr, RECT *r, int x, int y)
255 {
256   r->left = infoPtr->days.left + x * infoPtr->width_increment;
257   r->right = r->left + infoPtr->width_increment;
258   r->top  = infoPtr->days.top  + y * infoPtr->height_increment;
259   r->bottom = r->top + infoPtr->textHeight;
260 }
261 
262 
263 /* sets the RECT struct r to the rectangle around the day and month */
264 /* day is the day value of the month(1 == 1st), month is the month */
265 /* value(january == 1, december == 12) */
266 static inline void MONTHCAL_CalcPosFromDay(const MONTHCAL_INFO *infoPtr,
267                                             int day, int month, RECT *r)
268 {
269   int x, y;
270 
271   MONTHCAL_CalcDayXY(infoPtr, day, month, &x, &y);
272   MONTHCAL_CalcDayRect(infoPtr, r, x, y);
273 }
274 
275 
276 /* day is the day in the month(1 == 1st of the month) */
277 /* month is the month value(1 == january, 12 == december) */
278 static void MONTHCAL_CircleDay(const MONTHCAL_INFO *infoPtr, HDC hdc, int day, int month)
279 {
280   HPEN hRedPen = CreatePen(PS_SOLID, 1, RGB(255, 0, 0));
281   HPEN hOldPen2 = SelectObject(hdc, hRedPen);
282   HBRUSH hOldBrush;
283   RECT day_rect;
284 
285   MONTHCAL_CalcPosFromDay(infoPtr, day, month, &day_rect);
286 
287   hOldBrush = SelectObject(hdc, GetStockObject(NULL_BRUSH));
288   Rectangle(hdc, day_rect.left, day_rect.top, day_rect.right, day_rect.bottom);
289 
290   SelectObject(hdc, hOldBrush);
291   DeleteObject(hRedPen);
292   SelectObject(hdc, hOldPen2);
293 }
294 
295 static void MONTHCAL_DrawDay(const MONTHCAL_INFO *infoPtr, HDC hdc, int day, int month,
296                              int x, int y, int bold)
297 {
298   static const WCHAR fmtW[] = { '%','d',0 };
299   WCHAR buf[10];
300   RECT r;
301   static BOOL haveBoldFont, haveSelectedDay = FALSE;
302   HBRUSH hbr;
303   COLORREF oldCol = 0;
304   COLORREF oldBk = 0;
305 
306   wsprintfW(buf, fmtW, day);
307 
308 /* No need to check styles: when selection is not valid, it is set to zero.
309  * 1<day<31, so everything is OK.
310  */
311 
312   MONTHCAL_CalcDayRect(infoPtr, &r, x, y);
313 
314   if((day>=infoPtr->minSel.wDay) && (day<=infoPtr->maxSel.wDay)
315        && (month==infoPtr->currentMonth)) {
316     RECT r2;
317 
318     TRACE("%d %d %d\n",day, infoPtr->minSel.wDay, infoPtr->maxSel.wDay);
319     TRACE("%s\n", wine_dbgstr_rect(&r));
320     oldCol = SetTextColor(hdc, infoPtr->monthbk);
321     oldBk = SetBkColor(hdc, infoPtr->trailingtxt);
322     hbr = GetSysColorBrush(COLOR_HIGHLIGHT);
323     FillRect(hdc, &r, hbr);
324 
325     /* FIXME: this may need to be changed now b/c of the other
326         drawing changes 11/3/99 CMM */
327     r2.left   = r.left - 0.25 * infoPtr->textWidth;
328     r2.top    = r.top;
329     r2.right  = r.left + 0.5 * infoPtr->textWidth;
330     r2.bottom = r.bottom;
331     if(haveSelectedDay) FillRect(hdc, &r2, hbr);
332       haveSelectedDay = TRUE;
333   } else {
334     haveSelectedDay = FALSE;
335   }
336 
337   /* need to add some code for multiple selections */
338 
339   if((bold) &&(!haveBoldFont)) {
340     SelectObject(hdc, infoPtr->hBoldFont);
341     haveBoldFont = TRUE;
342   }
343   if((!bold) &&(haveBoldFont)) {
344     SelectObject(hdc, infoPtr->hFont);
345     haveBoldFont = FALSE;
346   }
347 
348   SetBkMode(hdc,TRANSPARENT);
349   DrawTextW(hdc, buf, -1, &r, DT_CENTER | DT_VCENTER | DT_SINGLELINE );
350 
351   if(haveSelectedDay) {
352     SetTextColor(hdc, oldCol);
353     SetBkColor(hdc, oldBk);
354   }
355 
356   /* draw a rectangle around the currently selected days text */
357   if((day==infoPtr->curSelDay) && (month==infoPtr->currentMonth))
358     DrawFocusRect(hdc, &r);
359 }
360 
361 
362 static void paint_button (const MONTHCAL_INFO *infoPtr, HDC hdc, BOOL btnNext,
363                           BOOL pressed, RECT* r)
364 {
365     HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
366     
367     if (theme)
368     {
369         static const int states[] = {
370             /* Prev button */
371             ABS_LEFTNORMAL,  ABS_LEFTPRESSED,  ABS_LEFTDISABLED,
372             /* Next button */
373             ABS_RIGHTNORMAL, ABS_RIGHTPRESSED, ABS_RIGHTDISABLED
374         };
375         int stateNum = btnNext ? 3 : 0;
376         if (pressed)
377             stateNum += 1;
378         else
379         {
380             if (infoPtr->dwStyle & WS_DISABLED) stateNum += 2;
381         }
382         DrawThemeBackground (theme, hdc, SBP_ARROWBTN, states[stateNum], r, NULL);
383     }
384     else
385     {
386         int style = btnNext ? DFCS_SCROLLRIGHT : DFCS_SCROLLLEFT;
387         if (pressed)
388             style |= DFCS_PUSHED;
389         else
390         {
391             if (infoPtr->dwStyle & WS_DISABLED) style |= DFCS_INACTIVE;
392         }
393         
394         DrawFrameControl(hdc, r, DFC_SCROLL, style);
395     }
396 }
397 
398 
399 static void MONTHCAL_Refresh(MONTHCAL_INFO *infoPtr, HDC hdc, const PAINTSTRUCT *ps)
400 {
401   static const WCHAR todayW[] = { 'T','o','d','a','y',':',0 };
402   static const WCHAR fmt1W[] = { '%','s',' ','%','l','d',0 };
403   static const WCHAR fmt2W[] = { '%','s',' ','%','s',0 };
404   static const WCHAR fmt3W[] = { '%','d',0 };
405   RECT *title=&infoPtr->title;
406   RECT *prev=&infoPtr->titlebtnprev;
407   RECT *next=&infoPtr->titlebtnnext;
408   RECT *titlemonth=&infoPtr->titlemonth;
409   RECT *titleyear=&infoPtr->titleyear;
410   RECT dayrect;
411   RECT *days=&dayrect;
412   RECT rtoday;
413   int i, j, m, mask, day, firstDay, weeknum, weeknum1,prevMonth;
414   int textHeight = infoPtr->textHeight;
415   SIZE size;
416   HBRUSH hbr;
417   HFONT currentFont;
418   WCHAR buf[20];
419   WCHAR buf1[20];
420   WCHAR buf2[32];
421   COLORREF oldTextColor, oldBkColor;
422   RECT rcTemp;
423   RECT rcDay; /* used in MONTHCAL_CalcDayRect() */
424   SYSTEMTIME localtime;
425   int startofprescal;
426 
427   oldTextColor = SetTextColor(hdc, comctl32_color.clrWindowText);
428 
429   /* fill background */
430   hbr = CreateSolidBrush (infoPtr->bk);
431   FillRect(hdc, &ps->rcPaint, hbr);
432   DeleteObject(hbr);
433 
434   /* draw header */
435   if(IntersectRect(&rcTemp, &(ps->rcPaint), title))
436   {
437     hbr =  CreateSolidBrush(infoPtr->titlebk);
438     FillRect(hdc, title, hbr);
439     DeleteObject(hbr);
440   }
441 
442   /* if the previous button is pressed draw it depressed */
443   if(IntersectRect(&rcTemp, &(ps->rcPaint), prev))
444     paint_button (infoPtr, hdc, FALSE, infoPtr->status & MC_PREVPRESSED, prev);
445 
446   /* if next button is depressed draw it depressed */
447   if(IntersectRect(&rcTemp, &(ps->rcPaint), next))
448     paint_button (infoPtr, hdc, TRUE, infoPtr->status & MC_NEXTPRESSED, next);
449 
450   oldBkColor = SetBkColor(hdc, infoPtr->titlebk);
451   SetTextColor(hdc, infoPtr->titletxt);
452   currentFont = SelectObject(hdc, infoPtr->hBoldFont);
453 
454   GetLocaleInfoW( LOCALE_USER_DEFAULT,LOCALE_SMONTHNAME1+infoPtr->currentMonth -1,
455                   buf1,countof(buf1));
456   wsprintfW(buf, fmt1W, buf1, infoPtr->currentYear);
457 
458   if(IntersectRect(&rcTemp, &(ps->rcPaint), title))
459   {
460     DrawTextW(hdc, buf, strlenW(buf), title,
461                         DT_CENTER | DT_VCENTER | DT_SINGLELINE);
462   }
463 
464 /* titlemonth left/right contained rect for whole titletxt('June  1999')
465   * MCM_HitTestInfo wants month & year rects, so prepare these now.
466   *(no, we can't draw them separately; the whole text is centered)
467   */
468   GetTextExtentPoint32W(hdc, buf, strlenW(buf), &size);
469   titlemonth->left = title->right / 2 + title->left / 2 - size.cx / 2;
470   titleyear->right = title->right / 2 + title->left / 2 + size.cx / 2;
471   GetTextExtentPoint32W(hdc, buf1, strlenW(buf1), &size);
472   titlemonth->right = titlemonth->left + size.cx;
473   titleyear->left = titlemonth->right;
474 
475   /* draw month area */
476   rcTemp.top=infoPtr->wdays.top;
477   rcTemp.left=infoPtr->wdays.left;
478   rcTemp.bottom=infoPtr->todayrect.bottom;
479   rcTemp.right =infoPtr->todayrect.right;
480   if(IntersectRect(&rcTemp, &(ps->rcPaint), &rcTemp))
481   {
482     hbr =  CreateSolidBrush(infoPtr->monthbk);
483     FillRect(hdc, &rcTemp, hbr);
484     DeleteObject(hbr);
485   }
486 
487 /* draw line under day abbreviations */
488 
489   MoveToEx(hdc, infoPtr->days.left + 3, title->bottom + textHeight + 1, NULL);
490   LineTo(hdc, infoPtr->days.right - 3, title->bottom + textHeight + 1);
491 
492   prevMonth = infoPtr->currentMonth - 1;
493   if(prevMonth == 0) /* if currentMonth is january(1) prevMonth is */
494     prevMonth = 12;    /* december(12) of the previous year */
495 
496   infoPtr->wdays.left   = infoPtr->days.left   = infoPtr->weeknums.right;
497 /* draw day abbreviations */
498 
499   SelectObject(hdc, infoPtr->hFont);
500   SetBkColor(hdc, infoPtr->monthbk);
501   SetTextColor(hdc, infoPtr->trailingtxt);
502 
503   /* copy this rect so we can change the values without changing */
504   /* the original version */
505   days->left = infoPtr->wdays.left;
506   days->right = days->left + infoPtr->width_increment;
507   days->top = infoPtr->wdays.top;
508   days->bottom = infoPtr->wdays.bottom;
509 
510   i = infoPtr->firstDay;
511 
512   for(j=0; j<7; j++) {
513     GetLocaleInfoW( LOCALE_USER_DEFAULT,LOCALE_SABBREVDAYNAME1 + (i+j+6)%7, buf, countof(buf));
514     DrawTextW(hdc, buf, strlenW(buf), days, DT_CENTER | DT_VCENTER | DT_SINGLELINE );
515     days->left+=infoPtr->width_increment;
516     days->right+=infoPtr->width_increment;
517   }
518 
519 /* draw day numbers; first, the previous month */
520 
521   firstDay = MONTHCAL_CalculateDayOfWeek(1, infoPtr->currentMonth, infoPtr->currentYear);
522 
523   day = MONTHCAL_MonthLength(prevMonth, infoPtr->currentYear)  +
524     (infoPtr->firstDay + 7  - firstDay)%7 + 1;
525   if (day > MONTHCAL_MonthLength(prevMonth, infoPtr->currentYear))
526     day -=7;
527   startofprescal = day;
528   mask = 1<<(day-1);
529 
530   i = 0;
531   m = 0;
532   while(day <= MONTHCAL_MonthLength(prevMonth, infoPtr->currentYear)) {
533     MONTHCAL_CalcDayRect(infoPtr, &rcDay, i, 0);
534     if(IntersectRect(&rcTemp, &(ps->rcPaint), &rcDay))
535     {
536       MONTHCAL_DrawDay(infoPtr, hdc, day, prevMonth, i, 0,
537           infoPtr->monthdayState[m] & mask);
538     }
539 
540     mask<<=1;
541     day++;
542     i++;
543   }
544 
545 /* draw `current' month  */
546 
547   day = 1; /* start at the beginning of the current month */
548 
549   infoPtr->firstDayplace = i;
550   SetTextColor(hdc, infoPtr->txt);
551   m++;
552   mask = 1;
553 
554   /* draw the first week of the current month */
555   while(i<7) {
556     MONTHCAL_CalcDayRect(infoPtr, &rcDay, i, 0);
557     if(IntersectRect(&rcTemp, &(ps->rcPaint), &rcDay))
558     {
559 
560       MONTHCAL_DrawDay(infoPtr, hdc, day, infoPtr->currentMonth, i, 0,
561         infoPtr->monthdayState[m] & mask);
562 
563       if((infoPtr->currentMonth==infoPtr->todaysDate.wMonth) &&
564           (day==infoPtr->todaysDate.wDay) &&
565           (infoPtr->currentYear == infoPtr->todaysDate.wYear)) {
566         if(!(infoPtr->dwStyle & MCS_NOTODAYCIRCLE))
567           MONTHCAL_CircleDay(infoPtr, hdc, day, infoPtr->currentMonth);
568       }
569     }
570 
571     mask<<=1;
572     day++;
573     i++;
574   }
575 
576   j = 1; /* move to the 2nd week of the current month */
577   i = 0; /* move back to sunday */
578   while(day <= MONTHCAL_MonthLength(infoPtr->currentMonth, infoPtr->currentYear)) {
579     MONTHCAL_CalcDayRect(infoPtr, &rcDay, i, j);
580     if(IntersectRect(&rcTemp, &(ps->rcPaint), &rcDay))
581     {
582       MONTHCAL_DrawDay(infoPtr, hdc, day, infoPtr->currentMonth, i, j,
583           infoPtr->monthdayState[m] & mask);
584 
585       if((infoPtr->currentMonth==infoPtr->todaysDate.wMonth) &&
586           (day==infoPtr->todaysDate.wDay) &&
587           (infoPtr->currentYear == infoPtr->todaysDate.wYear))
588         if(!(infoPtr->dwStyle & MCS_NOTODAYCIRCLE))
589           MONTHCAL_CircleDay(infoPtr, hdc, day, infoPtr->currentMonth);
590     }
591     mask<<=1;
592     day++;
593     i++;
594     if(i>6) { /* past saturday, goto the next weeks sunday */
595       i = 0;
596       j++;
597     }
598   }
599 
600 /*  draw `next' month */
601 
602   day = 1; /* start at the first day of the next month */
603   m++;
604   mask = 1;
605 
606   SetTextColor(hdc, infoPtr->trailingtxt);
607   while((i<7) &&(j<6)) {
608     MONTHCAL_CalcDayRect(infoPtr, &rcDay, i, j);
609     if(IntersectRect(&rcTemp, &(ps->rcPaint), &rcDay))
610     {
611       MONTHCAL_DrawDay(infoPtr, hdc, day, infoPtr->currentMonth + 1, i, j,
612                 infoPtr->monthdayState[m] & mask);
613     }
614 
615     mask<<=1;
616     day++;
617     i++;
618     if(i==7) { /* past saturday, go to next week's sunday */
619       i = 0;
620       j++;
621     }
622   }
623   SetTextColor(hdc, infoPtr->txt);
624 
625 
626 /* draw `today' date if style allows it, and draw a circle before today's
627  * date if necessary */
628 
629   if(!(infoPtr->dwStyle & MCS_NOTODAY))  {
630     if(!(infoPtr->dwStyle & MCS_NOTODAYCIRCLE))  {
631       /*day is the number of days from nextmonth we put on the calendar */
632       MONTHCAL_CircleDay(infoPtr, hdc,
633                          day+MONTHCAL_MonthLength(infoPtr->currentMonth,infoPtr->currentYear),
634                          infoPtr->currentMonth);
635     }
636     if (!LoadStringW(COMCTL32_hModule,IDM_TODAY,buf1,countof(buf1)))
637       {
638         WARN("Can't load resource\n");
639         strcpyW(buf1, todayW);
640       }
641     MONTHCAL_CalcDayRect(infoPtr, &rtoday, 1, 6);
642     MONTHCAL_CopyTime(&infoPtr->todaysDate,&localtime);
643     GetDateFormatW(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&localtime,NULL,buf2,countof(buf2));
644     wsprintfW(buf, fmt2W, buf1, buf2);
645     SelectObject(hdc, infoPtr->hBoldFont);
646 
647     DrawTextW(hdc, buf, -1, &rtoday, DT_CALCRECT | DT_LEFT | DT_VCENTER | DT_SINGLELINE);
648     if(IntersectRect(&rcTemp, &(ps->rcPaint), &rtoday))
649     {
650       DrawTextW(hdc, buf, -1, &rtoday, DT_LEFT | DT_VCENTER | DT_SINGLELINE);
651     }
652     SelectObject(hdc, infoPtr->hFont);
653   }
654 
655 /*eventually draw week numbers*/
656   if(infoPtr->dwStyle & MCS_WEEKNUMBERS)  {
657     /* display weeknumbers*/
658     int mindays;
659 
660     /* Rules what week to call the first week of a new year:
661        LOCALE_IFIRSTWEEKOFYEAR == 0 (e.g US?):
662        The week containing Jan 1 is the first week of year
663        LOCALE_IFIRSTWEEKOFYEAR == 2 (e.g. Germany):
664        First week of year must contain 4 days of the new year
665        LOCALE_IFIRSTWEEKOFYEAR == 1  (what contries?)
666        The first week of the year must contain only days of the new year
667     */
668     GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_IFIRSTWEEKOFYEAR, buf, countof(buf));
669     weeknum = atoiW(buf);
670     switch (weeknum)
671       {
672       case 1: mindays = 6;
673         break;
674       case 2: mindays = 3;
675         break;
676       case 0:
677       default:
678         mindays = 0;
679       }
680     if (infoPtr->currentMonth < 2)
681       {
682         /* calculate all those exceptions for january */
683         weeknum1=MONTHCAL_CalculateDayOfWeek(1,1,infoPtr->currentYear);
684         if ((infoPtr->firstDay +7 - weeknum1)%7 > mindays)
685             weeknum =1;
686         else
687           {
688             weeknum = 0;
689             for(i=0; i<11; i++)
690               weeknum+=MONTHCAL_MonthLength(i+1, infoPtr->currentYear-1);
691             weeknum +=startofprescal+ 7;
692             weeknum /=7;
693             weeknum1=MONTHCAL_CalculateDayOfWeek(1,1,infoPtr->currentYear-1);
694             if ((infoPtr->firstDay + 7 - weeknum1)%7 > mindays)
695               weeknum++;
696           }
697       }
698     else
699       {
700         weeknum = 0;
701         for(i=0; i<prevMonth-1; i++)
702           weeknum+=MONTHCAL_MonthLength(i+1, infoPtr->currentYear);
703         weeknum +=startofprescal+ 7;
704         weeknum /=7;
705         weeknum1=MONTHCAL_CalculateDayOfWeek(1,1,infoPtr->currentYear);
706         if ((infoPtr->firstDay + 7 - weeknum1)%7 > mindays)
707           weeknum++;
708       }
709     days->left = infoPtr->weeknums.left;
710     days->right = infoPtr->weeknums.right;
711     days->top = infoPtr->weeknums.top;
712     days->bottom = days->top +infoPtr->height_increment;
713     for(i=0; i<6; i++) {
714       if((i==0)&&(weeknum>50))
715         {
716           wsprintfW(buf, fmt3W, weeknum);
717           weeknum=0;
718         }
719       else if((i==5)&&(weeknum>47))
720         {
721           wsprintfW(buf, fmt3W, 1);
722         }
723       else
724         wsprintfW(buf, fmt3W, weeknum + i);
725       DrawTextW(hdc, buf, -1, days, DT_CENTER | DT_VCENTER | DT_SINGLELINE );
726       days->top+=infoPtr->height_increment;
727       days->bottom+=infoPtr->height_increment;
728     }
729 
730     MoveToEx(hdc, infoPtr->weeknums.right, infoPtr->weeknums.top + 3 , NULL);
731     LineTo(hdc,   infoPtr->weeknums.right, infoPtr->weeknums.bottom );
732 
733   }
734   /* currentFont was font at entering Refresh */
735 
736   SetBkColor(hdc, oldBkColor);
737   SelectObject(hdc, currentFont);
738   SetTextColor(hdc, oldTextColor);
739 }
740 
741 
742 static LRESULT
743 MONTHCAL_GetMinReqRect(const MONTHCAL_INFO *infoPtr, LPRECT lpRect)
744 {
745   TRACE("rect %p\n", lpRect);
746 
747   if(!lpRect) return FALSE;
748 
749   lpRect->left = infoPtr->title.left;
750   lpRect->top = infoPtr->title.top;
751   lpRect->right = infoPtr->title.right;
752   lpRect->bottom = infoPtr->todayrect.bottom;
753   AdjustWindowRect(lpRect, infoPtr->dwStyle, FALSE);
754 
755   TRACE("%s\n", wine_dbgstr_rect(lpRect));
756 
757   return TRUE;
758 }
759 
760 
761 static LRESULT
762 MONTHCAL_GetColor(const MONTHCAL_INFO *infoPtr, INT index)
763 {
764   TRACE("\n");
765 
766   switch(index) {
767     case MCSC_BACKGROUND:
768       return infoPtr->bk;
769     case MCSC_TEXT:
770       return infoPtr->txt;
771     case MCSC_TITLEBK:
772       return infoPtr->titlebk;
773     case MCSC_TITLETEXT:
774       return infoPtr->titletxt;
775     case MCSC_MONTHBK:
776       return infoPtr->monthbk;
777     case MCSC_TRAILINGTEXT:
778       return infoPtr->trailingtxt;
779   }
780 
781   return -1;
782 }
783 
784 
785 static LRESULT
786 MONTHCAL_SetColor(MONTHCAL_INFO *infoPtr, INT index, COLORREF color)
787 {
788   COLORREF prev = -1;
789 
790   TRACE("%d: color %08x\n", index, color);
791 
792   switch(index) {
793     case MCSC_BACKGROUND:
794       prev = infoPtr->bk;
795       infoPtr->bk = color;
796       break;
797     case MCSC_TEXT:
798       prev = infoPtr->txt;
799       infoPtr->txt = color;
800       break;
801     case MCSC_TITLEBK:
802       prev = infoPtr->titlebk;
803       infoPtr->titlebk = color;
804       break;
805     case MCSC_TITLETEXT:
806       prev=infoPtr->titletxt;
807       infoPtr->titletxt = color;
808       break;
809     case MCSC_MONTHBK:
810       prev = infoPtr->monthbk;
811       infoPtr->monthbk = color;
812       break;
813     case MCSC_TRAILINGTEXT:
814       prev = infoPtr->trailingtxt;
815       infoPtr->trailingtxt = color;
816       break;
817   }
818 
819   InvalidateRect(infoPtr->hwndSelf, NULL, index == MCSC_BACKGROUND ? TRUE : FALSE);
820   return prev;
821 }
822 
823 
824 static LRESULT
825 MONTHCAL_GetMonthDelta(const MONTHCAL_INFO *infoPtr)
826 {
827   TRACE("\n");
828 
829   if(infoPtr->delta)
830     return infoPtr->delta;
831   else
832     return infoPtr->visible;
833 }
834 
835 
836 static LRESULT
837 MONTHCAL_SetMonthDelta(MONTHCAL_INFO *infoPtr, INT delta)
838 {
839   INT prev = infoPtr->delta;
840 
841   TRACE("delta %d\n", delta);
842 
843   infoPtr->delta = delta;
844   return prev;
845 }
846 
847 
848 static LRESULT
849 MONTHCAL_GetFirstDayOfWeek(const MONTHCAL_INFO *infoPtr)
850 {
851   return MAKELONG(infoPtr->firstDay, infoPtr->firstDayHighWord);
852 }
853 
854 
855 /* sets the first day of the week that will appear in the control */
856 /* 0 == Sunday, 6 == Saturday */
857 /* FIXME: this needs to be implemented properly in MONTHCAL_Refresh() */
858 /* FIXME: we need more error checking here */
859 static LRESULT
860 MONTHCAL_SetFirstDayOfWeek(MONTHCAL_INFO *infoPtr, INT day)
861 {
862   int prev = MAKELONG(infoPtr->firstDay, infoPtr->firstDayHighWord);
863   int localFirstDay;
864   WCHAR buf[40];
865 
866   TRACE("day %d\n", day);
867 
868   GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_IFIRSTDAYOFWEEK, buf, countof(buf));
869   TRACE("%s %d\n", debugstr_w(buf), strlenW(buf));
870 
871   localFirstDay = atoiW(buf);
872 
873   if(day == -1)
874   {
875     infoPtr->firstDay = localFirstDay;
876     infoPtr->firstDayHighWord = FALSE;
877   }
878   else if(day >= 7)
879   {
880     infoPtr->firstDay = 6; /* max first day allowed */
881     infoPtr->firstDayHighWord = TRUE;
882   }
883   else
884   {
885     infoPtr->firstDay = day;
886     infoPtr->firstDayHighWord = TRUE;
887   }
888 
889   return prev;
890 }
891 
892 
893 static LRESULT
894 MONTHCAL_GetMonthRange(const MONTHCAL_INFO *infoPtr)
895 {
896   TRACE("\n");
897 
898   return infoPtr->monthRange;
899 }
900 
901 
902 static LRESULT
903 MONTHCAL_GetMaxTodayWidth(const MONTHCAL_INFO *infoPtr)
904 {
905   return(infoPtr->todayrect.right - infoPtr->todayrect.left);
906 }
907 
908 
909 static LRESULT
910 MONTHCAL_SetRange(MONTHCAL_INFO *infoPtr, SHORT limits, SYSTEMTIME *range)
911 {
912     FILETIME ft_min, ft_max;
913 
914     TRACE("%x %p\n", limits, range);
915 
916     if ((limits & GDTR_MIN && !MONTHCAL_ValidateTime(range[0])) ||
917         (limits & GDTR_MAX && !MONTHCAL_ValidateTime(range[1])))
918         return FALSE;
919 
920     if (limits & GDTR_MIN)
921     {
922         MONTHCAL_CopyTime(&range[0], &infoPtr->minDate);
923         infoPtr->rangeValid |= GDTR_MIN;
924     }
925     if (limits & GDTR_MAX)
926     {
927         MONTHCAL_CopyTime(&range[1], &infoPtr->maxDate);
928         infoPtr->rangeValid |= GDTR_MAX;
929     }
930 
931     /* Only one limit set - we are done */
932     if ((infoPtr->rangeValid & (GDTR_MIN | GDTR_MAX)) != (GDTR_MIN | GDTR_MAX))
933         return TRUE;
934     
935     SystemTimeToFileTime(&infoPtr->maxDate, &ft_max);
936     SystemTimeToFileTime(&infoPtr->minDate, &ft_min);
937 
938     if (CompareFileTime(&ft_min, &ft_max) > 0)
939     {
940         if ((limits & (GDTR_MIN | GDTR_MAX)) == (GDTR_MIN | GDTR_MAX))
941         {
942             /* Native swaps limits only when both limits are being set. */
943             SYSTEMTIME st_tmp = infoPtr->minDate;
944             infoPtr->minDate  = infoPtr->maxDate;
945             infoPtr->maxDate  = st_tmp;
946         }
947         else
948         {
949             /* Reset the other limit. */
950             /* FIXME: native sets date&time to 0. Should we do this too? */
951             infoPtr->rangeValid &= limits & GDTR_MIN ? ~GDTR_MAX : ~GDTR_MIN ;
952         }
953     }
954 
955     return TRUE;
956 }
957 
958 
959 static LRESULT
960 MONTHCAL_GetRange(const MONTHCAL_INFO *infoPtr, SYSTEMTIME *range)
961 {
962   TRACE("%p\n", range);
963 
964   if(!range) return FALSE;
965 
966   MONTHCAL_CopyTime(&infoPtr->maxDate, &range[1]);
967   MONTHCAL_CopyTime(&infoPtr->minDate, &range[0]);
968 
969   return infoPtr->rangeValid;
970 }
971 
972 
973 static LRESULT
974 MONTHCAL_SetDayState(const MONTHCAL_INFO *infoPtr, INT months, MONTHDAYSTATE *states)
975 {
976   int i;
977 
978   TRACE("%d %p\n", months, states);
979   if(months != infoPtr->monthRange) return 0;
980 
981   for(i = 0; i < months; i++)
982     infoPtr->monthdayState[i] = states[i];
983 
984   return 1;
985 }
986 
987 static LRESULT
988 MONTHCAL_GetCurSel(const MONTHCAL_INFO *infoPtr, SYSTEMTIME *curSel)
989 {
990   TRACE("%p\n", curSel);
991   if(!curSel) return FALSE;
992   if(infoPtr->dwStyle & MCS_MULTISELECT) return FALSE;
993 
994   MONTHCAL_CopyTime(&infoPtr->minSel, curSel);
995   TRACE("%d/%d/%d\n", curSel->wYear, curSel->wMonth, curSel->wDay);
996   return TRUE;
997 }
998 
999 /* FIXME: if the specified date is not visible, make it visible */
1000 /* FIXME: redraw? */
1001 static LRESULT
1002 MONTHCAL_SetCurSel(MONTHCAL_INFO *infoPtr, SYSTEMTIME *curSel)
1003 {
1004   TRACE("%p\n", curSel);
1005   if(!curSel) return FALSE;
1006   if(infoPtr->dwStyle & MCS_MULTISELECT) return FALSE;
1007 
1008   if(!MONTHCAL_ValidateTime(*curSel)) return FALSE;
1009 
1010   MONTHCAL_CopyTime(curSel, &infoPtr->minSel);
1011   MONTHCAL_CopyTime(curSel, &infoPtr->maxSel);
1012 
1013   /* exit earlier if selection equals current */
1014   if (infoPtr->currentMonth == curSel->wMonth &&
1015       infoPtr->currentYear  == curSel->wYear  &&
1016       infoPtr->curSelDay    == curSel->wDay) return TRUE;
1017 
1018   infoPtr->currentMonth = curSel->wMonth;
1019   infoPtr->currentYear  = curSel->wYear;
1020 
1021   InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1022 
1023   return TRUE;
1024 }
1025 
1026 
1027 static LRESULT
1028 MONTHCAL_GetMaxSelCount(const MONTHCAL_INFO *infoPtr)
1029 {
1030   return infoPtr->maxSelCount;
1031 }
1032 
1033 
1034 static LRESULT
1035 MONTHCAL_SetMaxSelCount(MONTHCAL_INFO *infoPtr, INT max)
1036 {
1037   TRACE("%d\n", max);
1038 
1039   if(infoPtr->dwStyle & MCS_MULTISELECT)  {
1040     infoPtr->maxSelCount = max;
1041   }
1042 
1043   return TRUE;
1044 }
1045 
1046 
1047 static LRESULT
1048 MONTHCAL_GetSelRange(const MONTHCAL_INFO *infoPtr, SYSTEMTIME *range)
1049 {
1050   TRACE("%p\n", range);
1051 
1052   if(!range) return FALSE;
1053 
1054   if(infoPtr->dwStyle & MCS_MULTISELECT)
1055   {
1056     MONTHCAL_CopyTime(&infoPtr->maxSel, &range[1]);
1057     MONTHCAL_CopyTime(&infoPtr->minSel, &range[0]);
1058     TRACE("[min,max]=[%d %d]\n", infoPtr->minSel.wDay, infoPtr->maxSel.wDay);
1059     return TRUE;
1060   }
1061 
1062   return FALSE;
1063 }
1064 
1065 
1066 static LRESULT
1067 MONTHCAL_SetSelRange(MONTHCAL_INFO *infoPtr, SYSTEMTIME *range)
1068 {
1069   TRACE("%p\n", range);
1070 
1071   if(!range) return FALSE;
1072 
1073   if(infoPtr->dwStyle & MCS_MULTISELECT)
1074   {
1075     MONTHCAL_CopyTime(&range[1], &infoPtr->maxSel);
1076     MONTHCAL_CopyTime(&range[0], &infoPtr->minSel);
1077     TRACE("[min,max]=[%d %d]\n", infoPtr->minSel.wDay, infoPtr->maxSel.wDay);
1078     return TRUE;
1079   }
1080 
1081   return FALSE;
1082 }
1083 
1084 
1085 static LRESULT
1086 MONTHCAL_GetToday(const MONTHCAL_INFO *infoPtr, SYSTEMTIME *today)
1087 {
1088   TRACE("%p\n", today);
1089 
1090   if(!today) return FALSE;
1091   MONTHCAL_CopyTime(&infoPtr->todaysDate, today);
1092   return TRUE;
1093 }
1094 
1095 
1096 static LRESULT
1097 MONTHCAL_SetToday(MONTHCAL_INFO *infoPtr, SYSTEMTIME *today)
1098 {
1099   TRACE("%p\n", today);
1100 
1101   if(!today) return FALSE;
1102 
1103   if(MONTHCAL_IsDateEqual(today, &infoPtr->todaysDate)) return TRUE;
1104 
1105   MONTHCAL_CopyTime(today, &infoPtr->todaysDate);
1106   InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1107   return TRUE;
1108 }
1109 
1110 
1111 static LRESULT
1112 MONTHCAL_HitTest(const MONTHCAL_INFO *infoPtr, MCHITTESTINFO *lpht)
1113 {
1114   UINT x,y;
1115   DWORD retval;
1116   int day,wday,wnum;
1117 
1118 
1119   x = lpht->pt.x;
1120   y = lpht->pt.y;
1121 
1122   ZeroMemory(&lpht->st, sizeof(lpht->st));
1123 
1124   /* Comment in for debugging...
1125   TRACE("%d %d wd[%d %d %d %d] d[%d %d %d %d] t[%d %d %d %d] wn[%d %d %d %d]\n", x, y,
1126         infoPtr->wdays.left, infoPtr->wdays.right,
1127         infoPtr->wdays.top, infoPtr->wdays.bottom,
1128         infoPtr->days.left, infoPtr->days.right,
1129         infoPtr->days.top, infoPtr->days.bottom,
1130         infoPtr->todayrect.left, infoPtr->todayrect.right,
1131         infoPtr->todayrect.top, infoPtr->todayrect.bottom,
1132         infoPtr->weeknums.left, infoPtr->weeknums.right,
1133         infoPtr->weeknums.top, infoPtr->weeknums.bottom);
1134   */
1135 
1136   /* are we in the header? */
1137 
1138   if(PtInRect(&infoPtr->title, lpht->pt)) {
1139     if(PtInRect(&infoPtr->titlebtnprev, lpht->pt)) {
1140       retval = MCHT_TITLEBTNPREV;
1141       goto done;
1142     }
1143     if(PtInRect(&infoPtr->titlebtnnext, lpht->pt)) {
1144       retval = MCHT_TITLEBTNNEXT;
1145       goto done;
1146     }
1147     if(PtInRect(&infoPtr->titlemonth, lpht->pt)) {
1148       retval = MCHT_TITLEMONTH;
1149       goto done;
1150     }
1151     if(PtInRect(&infoPtr->titleyear, lpht->pt)) {
1152       retval = MCHT_TITLEYEAR;
1153       goto done;
1154     }
1155 
1156     retval = MCHT_TITLE;
1157     goto done;
1158   }
1159 
1160   day = MONTHCAL_CalcDayFromPos(infoPtr,x,y,&wday,&wnum);
1161   if(PtInRect(&infoPtr->wdays, lpht->pt)) {
1162     retval = MCHT_CALENDARDAY;
1163     lpht->st.wYear  = infoPtr->currentYear;
1164     lpht->st.wMonth = (day < 1)? infoPtr->currentMonth -1 : infoPtr->currentMonth;
1165     lpht->st.wDay   = (day < 1)?
1166       MONTHCAL_MonthLength(infoPtr->currentMonth-1,infoPtr->currentYear) -day : day;
1167     goto done;
1168   }
1169   if(PtInRect(&infoPtr->weeknums, lpht->pt)) {
1170     retval = MCHT_CALENDARWEEKNUM;
1171     lpht->st.wYear  = infoPtr->currentYear;
1172     lpht->st.wMonth = (day < 1) ? infoPtr->currentMonth -1 :
1173       (day > MONTHCAL_MonthLength(infoPtr->currentMonth,infoPtr->currentYear)) ?
1174       infoPtr->currentMonth +1 :infoPtr->currentMonth;
1175     lpht->st.wDay   = (day < 1 ) ?
1176       MONTHCAL_MonthLength(infoPtr->currentMonth-1,infoPtr->currentYear) -day :
1177       (day > MONTHCAL_MonthLength(infoPtr->currentMonth,infoPtr->currentYear)) ?
1178       day - MONTHCAL_MonthLength(infoPtr->currentMonth,infoPtr->currentYear) : day;
1179     goto done;
1180   }
1181   if(PtInRect(&infoPtr->days, lpht->pt))
1182     {
1183       lpht->st.wYear  = infoPtr->currentYear;
1184       if ( day < 1)
1185         {
1186           retval = MCHT_CALENDARDATEPREV;
1187           lpht->st.wMonth = infoPtr->currentMonth - 1;
1188           if (lpht->st.wMonth <1)
1189             {
1190               lpht->st.wMonth = 12;
1191               lpht->st.wYear--;
1192             }
1193           lpht->st.wDay   = MONTHCAL_MonthLength(lpht->st.wMonth,lpht->st.wYear) -day;
1194         }
1195       else if (day > MONTHCAL_MonthLength(infoPtr->currentMonth,infoPtr->currentYear))
1196         {
1197           retval = MCHT_CALENDARDATENEXT;
1198           lpht->st.wMonth = infoPtr->currentMonth + 1;
1199           if (lpht->st.wMonth <12)
1200             {
1201               lpht->st.wMonth = 1;
1202               lpht->st.wYear++;
1203             }
1204           lpht->st.wDay   = day - MONTHCAL_MonthLength(infoPtr->currentMonth,infoPtr->currentYear) ;
1205         }
1206       else {
1207         retval = MCHT_CALENDARDATE;
1208         lpht->st.wMonth = infoPtr->currentMonth;
1209         lpht->st.wDay   = day;
1210         lpht->st.wDayOfWeek   = MONTHCAL_CalculateDayOfWeek(day,lpht->st.wMonth,lpht->st.wYear);
1211       }
1212       goto done;
1213     }
1214   if(PtInRect(&infoPtr->todayrect, lpht->pt)) {
1215     retval = MCHT_TODAYLINK;
1216     goto done;
1217   }
1218 
1219 
1220   /* Hit nothing special? What's left must be background :-) */
1221 
1222   retval = MCHT_CALENDARBK;
1223  done:
1224   lpht->uHit = retval;
1225   return retval;
1226 }
1227 
1228 
1229 static void MONTHCAL_GoToNextMonth(MONTHCAL_INFO *infoPtr)
1230 {
1231   TRACE("MONTHCAL_GoToNextMonth\n");
1232 
1233   infoPtr->currentMonth++;
1234   if(infoPtr->currentMonth > 12) {
1235     infoPtr->currentYear++;
1236     infoPtr->currentMonth = 1;
1237   }
1238 
1239   if(infoPtr->dwStyle & MCS_DAYSTATE) {
1240     NMDAYSTATE nmds;
1241     int i;
1242 
1243     nmds.nmhdr.hwndFrom = infoPtr->hwndSelf;
1244     nmds.nmhdr.idFrom   = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
1245     nmds.nmhdr.code     = MCN_GETDAYSTATE;
1246     nmds.cDayState      = infoPtr->monthRange;
1247     nmds.prgDayState    = Alloc(infoPtr->monthRange * sizeof(MONTHDAYSTATE));
1248 
1249     nmds.stStart = infoPtr->todaysDate;
1250     nmds.stStart.wYear = infoPtr->currentYear;
1251     nmds.stStart.wMonth = infoPtr->currentMonth;
1252     nmds.stStart.wDay = 1;
1253 
1254     SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, nmds.nmhdr.idFrom, (LPARAM)&nmds);
1255     for(i=0; i<infoPtr->monthRange; i++)
1256       infoPtr->monthdayState[i] = nmds.prgDayState[i];
1257   }
1258 }
1259 
1260 
1261 static void MONTHCAL_GoToPrevMonth(MONTHCAL_INFO *infoPtr)
1262 {
1263   TRACE("\n");
1264 
1265   infoPtr->currentMonth--;
1266   if(infoPtr->currentMonth < 1) {
1267     infoPtr->currentYear--;
1268     infoPtr->currentMonth = 12;
1269   }
1270 
1271   if(infoPtr->dwStyle & MCS_DAYSTATE) {
1272     NMDAYSTATE nmds;
1273     int i;
1274 
1275     nmds.nmhdr.hwndFrom = infoPtr->hwndSelf;
1276     nmds.nmhdr.idFrom   = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
1277     nmds.nmhdr.code     = MCN_GETDAYSTATE;
1278     nmds.cDayState      = infoPtr->monthRange;
1279     nmds.prgDayState    = Alloc
1280                         (infoPtr->monthRange * sizeof(MONTHDAYSTATE));
1281 
1282     nmds.stStart = infoPtr->todaysDate;
1283     nmds.stStart.wYear = infoPtr->currentYear;
1284     nmds.stStart.wMonth = infoPtr->currentMonth;
1285     nmds.stStart.wDay = 1;
1286 
1287     SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, nmds.nmhdr.idFrom, (LPARAM)&nmds);
1288     for(i=0; i<infoPtr->monthRange; i++)
1289        infoPtr->monthdayState[i] = nmds.prgDayState[i];
1290   }
1291 }
1292 
1293 static LRESULT
1294 MONTHCAL_RButtonDown(MONTHCAL_INFO *infoPtr, LPARAM lParam)
1295 {
1296   static const WCHAR todayW[] = { 'G','o',' ','t','o',' ','T','o','d','a','y',':',0 };
1297   HMENU hMenu;
1298   POINT menupoint;
1299   WCHAR buf[32];
1300 
1301   hMenu = CreatePopupMenu();
1302   if (!LoadStringW(COMCTL32_hModule,IDM_GOTODAY,buf,countof(buf)))
1303     {
1304       WARN("Can't load resource\n");
1305       strcpyW(buf, todayW);
1306     }
1307   AppendMenuW(hMenu, MF_STRING|MF_ENABLED,1, buf);
1308   menupoint.x=(short)LOWORD(lParam);
1309   menupoint.y=(short)HIWORD(lParam);
1310   ClientToScreen(infoPtr->hwndSelf, &menupoint);
1311   if( TrackPopupMenu(hMenu,TPM_RIGHTBUTTON| TPM_NONOTIFY|TPM_RETURNCMD,
1312                      menupoint.x, menupoint.y, 0, infoPtr->hwndSelf, NULL))
1313     {
1314       infoPtr->currentMonth=infoPtr->todaysDate.wMonth;
1315       infoPtr->currentYear=infoPtr->todaysDate.wYear;
1316       InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1317     }
1318   return 0;
1319 }
1320 
1321 static LRESULT
1322 MONTHCAL_LButtonDown(MONTHCAL_INFO *infoPtr, LPARAM lParam)
1323 {
1324   static const WCHAR EditW[] = { 'E','D','I','T',0 };
1325   MCHITTESTINFO ht;
1326   DWORD hit;
1327   HMENU hMenu;
1328   RECT rcDay; /* used in determining area to invalidate */
1329   WCHAR buf[32];
1330   int i;
1331   POINT menupoint;
1332 
1333   TRACE("%lx\n", lParam);
1334 
1335   if (infoPtr->hWndYearUpDown)
1336     {
1337       infoPtr->currentYear=SendMessageW(infoPtr->hWndYearUpDown, UDM_SETPOS, 0, 0);
1338       if(!DestroyWindow(infoPtr->hWndYearUpDown))
1339         {
1340           FIXME("Can't destroy Updown Control\n");
1341         }
1342       else
1343         infoPtr->hWndYearUpDown=0;
1344       if(!DestroyWindow(infoPtr->hWndYearEdit))
1345         {
1346           FIXME("Can't destroy Updown Control\n");
1347         }
1348       else
1349         infoPtr->hWndYearEdit=0;
1350       InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1351     }
1352 
1353   ht.pt.x = (short)LOWORD(lParam);
1354   ht.pt.y = (short)HIWORD(lParam);
1355   hit = MONTHCAL_HitTest(infoPtr, &ht);
1356 
1357   /* FIXME: these flags should be checked by */
1358   /*((hit & MCHT_XXX) == MCHT_XXX) b/c some of the flags are */
1359   /* multi-bit */
1360   if(hit ==MCHT_TITLEBTNNEXT) {
1361     MONTHCAL_GoToNextMonth(infoPtr);
1362     infoPtr->status = MC_NEXTPRESSED;
1363     SetTimer(infoPtr->hwndSelf, MC_NEXTMONTHTIMER, MC_NEXTMONTHDELAY, 0);
1364     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1365     return 0;
1366   }
1367   if(hit == MCHT_TITLEBTNPREV){
1368     MONTHCAL_GoToPrevMonth(infoPtr);
1369     infoPtr->status = MC_PREVPRESSED;
1370     SetTimer(infoPtr->hwndSelf, MC_PREVMONTHTIMER, MC_NEXTMONTHDELAY, 0);
1371     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1372     return 0;
1373   }
1374 
1375   if(hit == MCHT_TITLEMONTH) {
1376     hMenu = CreatePopupMenu();
1377 
1378     for (i=0; i<12;i++)
1379       {
1380         GetLocaleInfoW(LOCALE_USER_DEFAULT,LOCALE_SMONTHNAME1+i, buf,countof(buf));
1381         AppendMenuW(hMenu, MF_STRING|MF_ENABLED,i+1, buf);
1382       }
1383     menupoint.x=infoPtr->titlemonth.right;
1384     menupoint.y=infoPtr->titlemonth.bottom;
1385     ClientToScreen(infoPtr->hwndSelf, &menupoint);
1386     i= TrackPopupMenu(hMenu,TPM_LEFTALIGN | TPM_NONOTIFY | TPM_RIGHTBUTTON | TPM_RETURNCMD,
1387                       menupoint.x, menupoint.y, 0, infoPtr->hwndSelf, NULL);
1388     if ((i>0) && (i<13))
1389       {
1390         infoPtr->currentMonth=i;
1391         InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1392       }
1393   }
1394   if(hit == MCHT_TITLEYEAR) {
1395     infoPtr->hWndYearEdit=CreateWindowExW(0,
1396                          EditW,
1397                            0,
1398                          WS_VISIBLE | WS_CHILD |UDS_SETBUDDYINT,
1399                          infoPtr->titleyear.left+3,infoPtr->titlebtnnext.top,
1400                          infoPtr->titleyear.right-infoPtr->titleyear.left+4,
1401                          infoPtr->textHeight,
1402                          infoPtr->hwndSelf,
1403                          NULL,
1404                          NULL,
1405                          NULL);
1406     SendMessageW( infoPtr->hWndYearEdit, WM_SETFONT, (WPARAM) infoPtr->hBoldFont, (LPARAM)TRUE);
1407     infoPtr->hWndYearUpDown=CreateWindowExW(0,
1408                          UPDOWN_CLASSW,
1409                            0,
1410                          WS_VISIBLE | WS_CHILD |UDS_SETBUDDYINT|UDS_NOTHOUSANDS|UDS_ARROWKEYS,
1411                          infoPtr->titleyear.right+7,infoPtr->titlebtnnext.top,
1412                          18,
1413                          infoPtr->textHeight,
1414                          infoPtr->hwndSelf,
1415                          NULL,
1416                          NULL,
1417                          NULL);
1418     SendMessageW(infoPtr->hWndYearUpDown, UDM_SETRANGE, 0, MAKELONG (9999, 1753));
1419     SendMessageW(infoPtr->hWndYearUpDown, UDM_SETBUDDY, (WPARAM) infoPtr->hWndYearEdit, 0);
1420     SendMessageW(infoPtr->hWndYearUpDown, UDM_SETPOS, 0, infoPtr->currentYear);
1421     return 0;
1422 
1423   }
1424   if(hit == MCHT_TODAYLINK) {
1425     NMSELCHANGE nmsc;
1426 
1427     infoPtr->curSelDay = infoPtr->todaysDate.wDay;
1428     infoPtr->firstSelDay = infoPtr->todaysDate.wDay;
1429     infoPtr->currentMonth=infoPtr->todaysDate.wMonth;
1430     infoPtr->currentYear=infoPtr->todaysDate.wYear;
1431     MONTHCAL_CopyTime(&infoPtr->todaysDate, &infoPtr->minSel);
1432     MONTHCAL_CopyTime(&infoPtr->todaysDate, &infoPtr->maxSel);
1433     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1434 
1435     nmsc.nmhdr.hwndFrom = infoPtr->hwndSelf;
1436     nmsc.nmhdr.idFrom   = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
1437     nmsc.nmhdr.code     = MCN_SELCHANGE;
1438     MONTHCAL_CopyTime(&infoPtr->minSel, &nmsc.stSelStart);
1439     MONTHCAL_CopyTime(&infoPtr->maxSel, &nmsc.stSelEnd);
1440     SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, nmsc.nmhdr.idFrom, (LPARAM)&nmsc);
1441 
1442     nmsc.nmhdr.code     = MCN_SELECT;
1443     SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, nmsc.nmhdr.idFrom, (LPARAM)&nmsc);
1444     return 0;
1445   }
1446   if(hit == MCHT_CALENDARDATE) {
1447     SYSTEMTIME selArray[2];
1448     NMSELCHANGE nmsc;
1449 
1450     MONTHCAL_CopyTime(&ht.st, &selArray[0]);
1451     MONTHCAL_CopyTime(&ht.st, &selArray[1]);
1452     MONTHCAL_SetSelRange(infoPtr, selArray);
1453     MONTHCAL_SetCurSel(infoPtr, &selArray[0]);
1454     TRACE("MCHT_CALENDARDATE\n");
1455     nmsc.nmhdr.hwndFrom = infoPtr->hwndSelf;
1456     nmsc.nmhdr.idFrom   = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
1457     nmsc.nmhdr.code     = MCN_SELCHANGE;
1458     MONTHCAL_CopyTime(&infoPtr->minSel,&nmsc.stSelStart);
1459     MONTHCAL_CopyTime(&infoPtr->maxSel,&nmsc.stSelEnd);
1460 
1461     SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, nmsc.nmhdr.idFrom, (LPARAM)&nmsc);
1462 
1463 
1464     /* redraw both old and new days if the selected day changed */
1465     if(infoPtr->curSelDay != ht.st.wDay) {
1466       MONTHCAL_CalcPosFromDay(infoPtr, ht.st.wDay, ht.st.wMonth, &rcDay);
1467       InvalidateRect(infoPtr->hwndSelf, &rcDay, TRUE);
1468 
1469       MONTHCAL_CalcPosFromDay(infoPtr, infoPtr->curSelDay, infoPtr->currentMonth, &rcDay);
1470       InvalidateRect(infoPtr->hwndSelf, &rcDay, TRUE);
1471     }
1472 
1473     infoPtr->firstSelDay = ht.st.wDay;
1474     infoPtr->curSelDay = ht.st.wDay;
1475     infoPtr->status = MC_SEL_LBUTDOWN;
1476     return 0;
1477   }
1478 
1479   return 1;
1480 }
1481 
1482 
1483 static LRESULT
1484 MONTHCAL_LButtonUp(MONTHCAL_INFO *infoPtr, LPARAM lParam)
1485 {
1486   NMSELCHANGE nmsc;
1487   NMHDR nmhdr;
1488   BOOL redraw = FALSE;
1489   MCHITTESTINFO ht;
1490   DWORD hit;
1491 
1492   TRACE("\n");
1493 
1494   if(infoPtr->status & MC_NEXTPRESSED) {
1495     KillTimer(infoPtr->hwndSelf, MC_NEXTMONTHTIMER);
1496     infoPtr->status &= ~MC_NEXTPRESSED;
1497     redraw = TRUE;
1498   }
1499   if(infoPtr->status & MC_PREVPRESSED) {
1500     KillTimer(infoPtr->hwndSelf, MC_PREVMONTHTIMER);
1501     infoPtr->status &= ~MC_PREVPRESSED;
1502     redraw = TRUE;
1503   }
1504 
1505   ht.pt.x = (short)LOWORD(lParam);
1506   ht.pt.y = (short)HIWORD(lParam);
1507   hit = MONTHCAL_HitTest(infoPtr, &ht);
1508 
1509   infoPtr->status = MC_SEL_LBUTUP;
1510 
1511   if(hit ==MCHT_CALENDARDATENEXT) {
1512     MONTHCAL_GoToNextMonth(infoPtr);
1513     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1514     return TRUE;
1515   }
1516   if(hit == MCHT_CALENDARDATEPREV){
1517     MONTHCAL_GoToPrevMonth(infoPtr);
1518     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1519     return TRUE;
1520   }
1521   nmhdr.hwndFrom = infoPtr->hwndSelf;
1522   nmhdr.idFrom   = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
1523   nmhdr.code     = NM_RELEASEDCAPTURE;
1524   TRACE("Sent notification from %p to %p\n", infoPtr->hwndSelf, infoPtr->hwndNotify);
1525 
1526   SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, nmhdr.idFrom, (LPARAM)&nmhdr);
1527   /* redraw if necessary */
1528   if(redraw)
1529     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1530   /* only send MCN_SELECT if currently displayed month's day was selected */
1531   if(hit == MCHT_CALENDARDATE) {
1532     nmsc.nmhdr.hwndFrom = infoPtr->hwndSelf;
1533     nmsc.nmhdr.idFrom   = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
1534     nmsc.nmhdr.code     = MCN_SELECT;
1535     MONTHCAL_CopyTime(&infoPtr->minSel, &nmsc.stSelStart);
1536     MONTHCAL_CopyTime(&infoPtr->maxSel, &nmsc.stSelEnd);
1537 
1538     SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, nmsc.nmhdr.idFrom, (LPARAM)&nmsc);
1539 
1540   }
1541   return 0;
1542 }
1543 
1544 
1545 static LRESULT
1546 MONTHCAL_Timer(MONTHCAL_INFO *infoPtr, WPARAM wParam)
1547 {
1548   BOOL redraw = FALSE;
1549 
1550   TRACE("%ld\n", wParam);
1551 
1552   switch(wParam) {
1553   case MC_NEXTMONTHTIMER:
1554     redraw = TRUE;
1555     MONTHCAL_GoToNextMonth(infoPtr);
1556     break;
1557   case MC_PREVMONTHTIMER:
1558     redraw = TRUE;
1559     MONTHCAL_GoToPrevMonth(infoPtr);
1560     break;
1561   default:
1562     ERR("got unknown timer\n");
1563     break;
1564   }
1565 
1566   /* redraw only if necessary */
1567   if(redraw)
1568     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1569 
1570   return 0;
1571 }
1572 
1573 
1574 static LRESULT
1575 MONTHCAL_MouseMove(MONTHCAL_INFO *infoPtr, LPARAM lParam)
1576 {
1577   MCHITTESTINFO ht;
1578   int oldselday, selday, hit;
1579   RECT r;
1580 
1581   if(!(infoPtr->status & MC_SEL_LBUTDOWN)) return 0;
1582 
1583   ht.pt.x = (short)LOWORD(lParam);
1584   ht.pt.y = (short)HIWORD(lParam);
1585 
1586   hit = MONTHCAL_HitTest(infoPtr, &ht);
1587 
1588   /* not on the calendar date numbers? bail out */
1589   TRACE("hit:%x\n",hit);
1590   if((hit & MCHT_CALENDARDATE) != MCHT_CALENDARDATE) return 0;
1591 
1592   selday = ht.st.wDay;
1593   oldselday = infoPtr->curSelDay;
1594   infoPtr->curSelDay = selday;
1595   MONTHCAL_CalcPosFromDay(infoPtr, selday, ht.st. wMonth, &r);
1596 
1597   if(infoPtr->dwStyle & MCS_MULTISELECT)  {
1598     SYSTEMTIME selArray[2];
1599     int i;
1600 
1601     MONTHCAL_GetSelRange(infoPtr, selArray);
1602     i = 0;
1603     if(infoPtr->firstSelDay==selArray[0].wDay) i=1;
1604     TRACE("oldRange:%d %d %d %d\n", infoPtr->firstSelDay, selArray[0].wDay, selArray[1].wDay, i);
1605     if(infoPtr->firstSelDay==selArray[1].wDay) {
1606       /* 1st time we get here: selArray[0]=selArray[1])  */
1607       /* if we're still at the first selected date, return */
1608       if(infoPtr->firstSelDay==selday) goto done;
1609       if(selday<infoPtr->firstSelDay) i = 0;
1610     }
1611 
1612     if(abs(infoPtr->firstSelDay - selday) >= infoPtr->maxSelCount) {
1613       if(selday>infoPtr->firstSelDay)
1614         selday = infoPtr->firstSelDay + infoPtr->maxSelCount;
1615       else
1616         selday = infoPtr->firstSelDay - infoPtr->maxSelCount;
1617     }
1618 
1619     if(selArray[i].wDay!=selday) {
1620       TRACE("newRange:%d %d %d %d\n", infoPtr->firstSelDay, selArray[0].wDay, selArray[1].wDay, i);
1621 
1622       selArray[i].wDay = selday;
1623 
1624       if(selArray[0].wDay>selArray[1].wDay) {
1625         DWORD tempday;
1626         tempday = selArray[1].wDay;
1627         selArray[1].wDay = selArray[0].wDay;
1628         selArray[0].wDay = tempday;
1629       }
1630 
1631       MONTHCAL_SetSelRange(infoPtr, selArray);
1632     }
1633   }
1634 
1635 done:
1636 
1637   /* only redraw if the currently selected day changed */
1638   /* FIXME: this should specify a rectangle containing only the days that changed */
1639   /* using InvalidateRect */
1640   if(oldselday != infoPtr->curSelDay)
1641     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1642 
1643   return 0;
1644 }
1645 
1646 
1647 static LRESULT
1648 MONTHCAL_Paint(MONTHCAL_INFO *infoPtr, HDC hdc_paint)
1649 {
1650   HDC hdc;
1651   PAINTSTRUCT ps;
1652 
1653   if (hdc_paint)
1654   {
1655     GetClientRect(infoPtr->hwndSelf, &ps.rcPaint);
1656     hdc = hdc_paint;
1657   }
1658   else
1659     hdc = BeginPaint(infoPtr->hwndSelf, &ps);
1660 
1661   MONTHCAL_Refresh(infoPtr, hdc, &ps);
1662   if (!hdc_paint) EndPaint(infoPtr->hwndSelf, &ps);
1663   return 0;
1664 }
1665 
1666 
1667 static LRESULT
1668 MONTHCAL_KillFocus(const MONTHCAL_INFO *infoPtr, HWND hFocusWnd)
1669 {
1670   TRACE("\n");
1671 
1672   if (infoPtr->hwndNotify != hFocusWnd)
1673     ShowWindow(infoPtr->hwndSelf, SW_HIDE);
1674   else
1675     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
1676 
1677   return 0;
1678 }
1679 
1680 
1681 static LRESULT
1682 MONTHCAL_SetFocus(const MONTHCAL_INFO *infoPtr)
1683 {
1684   TRACE("\n");
1685 
1686   InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1687 
1688   return 0;
1689 }
1690 
1691 /* sets the size information */
1692 static void MONTHCAL_UpdateSize(MONTHCAL_INFO *infoPtr)
1693 {
1694   static const WCHAR SunW[] = { 'S','u','n',0 };
1695   static const WCHAR O0W[] = { '','',0 };
1696   HDC hdc = GetDC(infoPtr->hwndSelf);
1697   RECT *title=&infoPtr->title;
1698   RECT *prev=&infoPtr->titlebtnprev;
1699   RECT *next=&infoPtr->titlebtnnext;
1700   RECT *titlemonth=&infoPtr->titlemonth;
1701   RECT *titleyear=&infoPtr->titleyear;
1702   RECT *wdays=&infoPtr->wdays;
1703   RECT *weeknumrect=&infoPtr->weeknums;
1704   RECT *days=&infoPtr->days;
1705   RECT *todayrect=&infoPtr->todayrect;
1706   SIZE size;
1707   TEXTMETRICW tm;
1708   HFONT currentFont;
1709   int xdiv, left_offset;
1710   RECT rcClient;
1711 
1712   GetClientRect(infoPtr->hwndSelf, &rcClient);
1713 
1714   currentFont = SelectObject(hdc, infoPtr->hFont);
1715 
1716   /* get the height and width of each day's text */
1717   GetTextMetricsW(hdc, &tm);
1718   infoPtr->textHeight = tm.tmHeight + tm.tmExternalLeading + tm.tmInternalLeading;
1719   GetTextExtentPoint32W(hdc, SunW, 3, &size);
1720   infoPtr->textWidth = size.cx + 2;
1721 
1722   /* recalculate the height and width increments and offsets */
1723   GetTextExtentPoint32W(hdc, O0W, 2, &size);
1724 
1725   xdiv = (infoPtr->dwStyle & MCS_WEEKNUMBERS) ? 8 : 7;
1726 
1727   infoPtr->width_increment = size.cx * 2 + 4;
1728   infoPtr->height_increment = infoPtr->textHeight;
1729   left_offset = (rcClient.right - rcClient.left) - (infoPtr->width_increment * xdiv);
1730 
1731   /* calculate title area */
1732   title->top    = rcClient.top;
1733   title->bottom = title->top + 3 * infoPtr->height_increment / 2;
1734   title->left   = left_offset;
1735   title->right  = rcClient.right;
1736 
1737   /* set the dimensions of the next and previous buttons and center */
1738   /* the month text vertically */
1739   prev->top    = next->top    = title->top + 4;
1740   prev->bottom = next->bottom = title->bottom - 4;
1741   prev->left   = title->left + 4;
1742   prev->right  = prev->left + (title->bottom - title->top) ;
1743   next->right  = title->right - 4;
1744   next->left   = next->right - (title->bottom - title->top);
1745 
1746   /* titlemonth->left and right change based upon the current month */
1747   /* and are recalculated in refresh as the current month may change */
1748   /* without the control being resized */
1749   titlemonth->top    = titleyear->top    = title->top    + (infoPtr->height_increment)/2;
1750   titlemonth->bottom = titleyear->bottom = title->bottom - (infoPtr->height_increment)/2;
1751 
1752   /* setup the dimensions of the rectangle we draw the names of the */
1753   /* days of the week in */
1754   weeknumrect->left = left_offset;
1755   if(infoPtr->dwStyle & MCS_WEEKNUMBERS)
1756     weeknumrect->right=prev->right;
1757   else
1758     weeknumrect->right=weeknumrect->left;
1759   wdays->left   = days->left   = weeknumrect->right;
1760   wdays->right  = days->right  = wdays->left + 7 * infoPtr->width_increment;
1761   wdays->top    = title->bottom ;
1762   wdays->bottom = wdays->top + infoPtr->height_increment;
1763 
1764   days->top    = weeknumrect->top = wdays->bottom ;
1765   days->bottom = weeknumrect->bottom = days->top + 6 * infoPtr->height_increment;
1766 
1767   todayrect->left   = rcClient.left;
1768   todayrect->right  = rcClient.right;
1769   todayrect->top    = days->bottom;
1770   todayrect->bottom = days->bottom + infoPtr->height_increment;
1771 
1772   TRACE("dx=%d dy=%d client[%s] title[%s] wdays[%s] days[%s] today[%s]\n",
1773         infoPtr->width_increment,infoPtr->height_increment,
1774         wine_dbgstr_rect(&rcClient),
1775         wine_dbgstr_rect(title),
1776         wine_dbgstr_rect(wdays),
1777         wine_dbgstr_rect(days),
1778         wine_dbgstr_rect(todayrect));
1779 
1780   /* restore the originally selected font */
1781   SelectObject(hdc, currentFont);
1782 
1783   ReleaseDC(infoPtr->hwndSelf, hdc);
1784 }
1785 
1786 static LRESULT MONTHCAL_Size(MONTHCAL_INFO *infoPtr, int Width, int Height)
1787 {
1788   TRACE("(width=%d, height=%d)\n", Width, Height);
1789 
1790   MONTHCAL_UpdateSize(infoPtr);
1791 
1792   /* invalidate client area and erase background */
1793   InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
1794 
1795   return 0;
1796 }
1797 
1798 static LRESULT MONTHCAL_GetFont(const MONTHCAL_INFO *infoPtr)
1799 {
1800     return (LRESULT)infoPtr->hFont;
1801 }
1802 
1803 static LRESULT MONTHCAL_SetFont(MONTHCAL_INFO *infoPtr, HFONT hFont, BOOL redraw)
1804 {
1805     HFONT hOldFont;
1806     LOGFONTW lf;
1807 
1808     if (!hFont) return 0;
1809 
1810     hOldFont = infoPtr->hFont;
1811     infoPtr->hFont = hFont;
1812 
1813     GetObjectW(infoPtr->hFont, sizeof(lf), &lf);
1814     lf.lfWeight = FW_BOLD;
1815     infoPtr->hBoldFont = CreateFontIndirectW(&lf);
1816 
1817     MONTHCAL_UpdateSize(infoPtr);
1818 
1819     if (redraw)
1820         InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1821 
1822     return (LRESULT)hOldFont;
1823 }
1824 
1825 /* update theme after a WM_THEMECHANGED message */
1826 static LRESULT theme_changed (const MONTHCAL_INFO* infoPtr)
1827 {
1828     HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
1829     CloseThemeData (theme);
1830     OpenThemeData (infoPtr->hwndSelf, themeClass);
1831     return 0;
1832 }
1833 
1834 static INT MONTHCAL_StyleChanged(MONTHCAL_INFO *infoPtr, WPARAM wStyleType,
1835                                  const STYLESTRUCT *lpss)
1836 {
1837     TRACE("(styletype=%lx, styleOld=0x%08x, styleNew=0x%08x)\n",
1838           wStyleType, lpss->styleOld, lpss->styleNew);
1839 
1840     if (wStyleType != GWL_STYLE) return 0;
1841 
1842     infoPtr->dwStyle = lpss->styleNew;
1843 
1844     return 0;
1845 }
1846 
1847 /* FIXME: check whether dateMin/dateMax need to be adjusted. */
1848 static LRESULT
1849 MONTHCAL_Create(HWND hwnd, LPCREATESTRUCTW lpcs)
1850 {
1851   MONTHCAL_INFO *infoPtr;
1852 
1853   /* allocate memory for info structure */
1854   infoPtr = Alloc(sizeof(MONTHCAL_INFO));
1855   SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
1856 
1857   if(infoPtr == NULL) {
1858     ERR( "could not allocate info memory!\n");
1859     return 0;
1860   }
1861 
1862   infoPtr->hwndSelf = hwnd;
1863   infoPtr->hwndNotify = lpcs->hwndParent;
1864   infoPtr->dwStyle  = GetWindowLongW(hwnd, GWL_STYLE);
1865 
1866   MONTHCAL_SetFont(infoPtr, GetStockObject(DEFAULT_GUI_FONT), FALSE);
1867 
1868   /* initialize info structure */
1869   /* FIXME: calculate systemtime ->> localtime(substract timezoneinfo) */
1870 
1871   GetLocalTime(&infoPtr->todaysDate);
1872   infoPtr->firstDayHighWord = FALSE;
1873   MONTHCAL_SetFirstDayOfWeek(infoPtr, -1);
1874   infoPtr->currentMonth = infoPtr->todaysDate.wMonth;
1875   infoPtr->currentYear = infoPtr->todaysDate.wYear;
1876   MONTHCAL_CopyTime(&infoPtr->todaysDate, &infoPtr->minDate);
1877   MONTHCAL_CopyTime(&infoPtr->todaysDate, &infoPtr->maxDate);
1878   infoPtr->maxDate.wYear=2050;
1879   infoPtr->minDate.wYear=1950;
1880   infoPtr->maxSelCount  = 7;
1881   infoPtr->monthRange = 3;
1882   infoPtr->monthdayState = Alloc
1883                          (infoPtr->monthRange * sizeof(MONTHDAYSTATE));
1884   infoPtr->titlebk     = comctl32_color.clrActiveCaption;
1885   infoPtr->titletxt    = comctl32_color.clrWindow;
1886   infoPtr->monthbk     = comctl32_color.clrWindow;
1887   infoPtr->trailingtxt = comctl32_color.clrGrayText;
1888   infoPtr->bk          = comctl32_color.clrWindow;
1889   infoPtr->txt         = comctl32_color.clrWindowText;
1890 
1891   /* set the current day for highlighing */
1892   infoPtr->minSel.wDay = infoPtr->todaysDate.wDay;
1893   infoPtr->maxSel.wDay = infoPtr->todaysDate.wDay;
1894 
1895   /* call MONTHCAL_UpdateSize to set all of the dimensions */
1896   /* of the control */
1897   MONTHCAL_UpdateSize(infoPtr);
1898   
1899   OpenThemeData (infoPtr->hwndSelf, themeClass);
1900 
1901   return 0;
1902 }
1903 
1904 
1905 static LRESULT
1906 MONTHCAL_Destroy(MONTHCAL_INFO *infoPtr)
1907 {
1908   /* free month calendar info data */
1909   Free(infoPtr->monthdayState);
1910   SetWindowLongPtrW(infoPtr->hwndSelf, 0, 0);
1911 
1912   CloseThemeData (GetWindowTheme (infoPtr->hwndSelf));
1913   
1914   Free(infoPtr);
1915   return 0;
1916 }
1917 
1918 
1919 static LRESULT WINAPI
1920 MONTHCAL_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1921 {
1922   MONTHCAL_INFO *infoPtr;
1923 
1924   TRACE("hwnd=%p msg=%x wparam=%lx lparam=%lx\n", hwnd, uMsg, wParam, lParam);
1925 
1926   infoPtr = MONTHCAL_GetInfoPtr(hwnd);
1927   if (!infoPtr && (uMsg != WM_CREATE))
1928     return DefWindowProcW(hwnd, uMsg, wParam, lParam);
1929   switch(uMsg)
1930   {
1931   case MCM_GETCURSEL:
1932     return MONTHCAL_GetCurSel(infoPtr, (LPSYSTEMTIME)lParam);
1933 
1934   case MCM_SETCURSEL:
1935     return MONTHCAL_SetCurSel(infoPtr, (LPSYSTEMTIME)lParam);
1936 
1937   case MCM_GETMAXSELCOUNT:
1938     return MONTHCAL_GetMaxSelCount(infoPtr);
1939 
1940   case MCM_SETMAXSELCOUNT:
1941     return MONTHCAL_SetMaxSelCount(infoPtr, wParam);
1942 
1943   case MCM_GETSELRANGE:
1944     return MONTHCAL_GetSelRange(infoPtr, (LPSYSTEMTIME)lParam);
1945 
1946   case MCM_SETSELRANGE:
1947     return MONTHCAL_SetSelRange(infoPtr, (LPSYSTEMTIME)lParam);
1948 
1949   case MCM_GETMONTHRANGE:
1950     return MONTHCAL_GetMonthRange(infoPtr);
1951 
1952   case MCM_SETDAYSTATE:
1953     return MONTHCAL_SetDayState(infoPtr, (INT)wParam, (LPMONTHDAYSTATE)lParam);
1954 
1955   case MCM_GETMINREQRECT:
1956     return MONTHCAL_GetMinReqRect(infoPtr, (LPRECT)lParam);
1957 
1958   case MCM_GETCOLOR:
1959     return MONTHCAL_GetColor(infoPtr, wParam);
1960 
1961   case MCM_SETCOLOR:
1962     return MONTHCAL_SetColor(infoPtr, wParam, (COLORREF)lParam);
1963 
1964   case MCM_GETTODAY:
1965     return MONTHCAL_GetToday(infoPtr, (LPSYSTEMTIME)lParam);
1966 
1967   case MCM_SETTODAY:
1968     return MONTHCAL_SetToday(infoPtr, (LPSYSTEMTIME)lParam);
1969 
1970   case MCM_HITTEST:
1971     return MONTHCAL_HitTest(infoPtr, (PMCHITTESTINFO)lParam);
1972 
1973   case MCM_GETFIRSTDAYOFWEEK:
1974     return MONTHCAL_GetFirstDayOfWeek(infoPtr);
1975 
1976   case MCM_SETFIRSTDAYOFWEEK:
1977     return MONTHCAL_SetFirstDayOfWeek(infoPtr, (INT)lParam);
1978 
1979   case MCM_GETRANGE:
1980     return MONTHCAL_GetRange(infoPtr, (LPSYSTEMTIME)lParam);
1981 
1982   case MCM_SETRANGE:
1983     return MONTHCAL_SetRange(infoPtr, (SHORT)wParam, (LPSYSTEMTIME)lParam);
1984 
1985   case MCM_GETMONTHDELTA:
1986     return MONTHCAL_GetMonthDelta(infoPtr);
1987 
1988   case MCM_SETMONTHDELTA:
1989     return MONTHCAL_SetMonthDelta(infoPtr, wParam);
1990 
1991   case MCM_GETMAXTODAYWIDTH:
1992     return MONTHCAL_GetMaxTodayWidth(infoPtr);
1993 
1994   case WM_GETDLGCODE:
1995     return DLGC_WANTARROWS | DLGC_WANTCHARS;
1996 
1997   case WM_KILLFOCUS:
1998     return MONTHCAL_KillFocus(infoPtr, (HWND)wParam);
1999 
2000   case WM_RBUTTONDOWN:
2001     return MONTHCAL_RButtonDown(infoPtr, lParam);
2002 
2003   case WM_LBUTTONDOWN:
2004     return MONTHCAL_LButtonDown(infoPtr, lParam);
2005 
2006   case WM_MOUSEMOVE:
2007     return MONTHCAL_MouseMove(infoPtr, lParam);
2008 
2009   case WM_LBUTTONUP:
2010     return MONTHCAL_LButtonUp(infoPtr, lParam);
2011 
2012   case WM_PRINTCLIENT:
2013   case WM_PAINT:
2014     return MONTHCAL_Paint(infoPtr, (HDC)wParam);
2015 
2016   case WM_SETFOCUS:
2017     return MONTHCAL_SetFocus(infoPtr);
2018 
2019   case WM_SIZE:
2020     return MONTHCAL_Size(infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
2021 
2022   case WM_CREATE:
2023     return MONTHCAL_Create(hwnd, (LPCREATESTRUCTW)lParam);
2024 
2025   case WM_SETFONT:
2026     return MONTHCAL_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
2027 
2028   case WM_GETFONT:
2029     return MONTHCAL_GetFont(infoPtr);
2030 
2031   case WM_TIMER:
2032     return MONTHCAL_Timer(infoPtr, wParam);
2033     
2034   case WM_THEMECHANGED:
2035     return theme_changed (infoPtr);
2036 
2037   case WM_DESTROY:
2038     return MONTHCAL_Destroy(infoPtr);
2039 
2040   case WM_SYSCOLORCHANGE:
2041     COMCTL32_RefreshSysColors();
2042     return 0;
2043 
2044   case WM_STYLECHANGED:
2045     return MONTHCAL_StyleChanged(infoPtr, wParam, (LPSTYLESTRUCT)lParam);
2046 
2047   default:
2048     if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
2049       ERR( "unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
2050     return DefWindowProcW(hwnd, uMsg, wParam, lParam);
2051   }
2052 }
2053 
2054 
2055 void
2056 MONTHCAL_Register(void)
2057 {
2058   WNDCLASSW wndClass;
2059 
2060   ZeroMemory(&wndClass, sizeof(WNDCLASSW));
2061   wndClass.style         = CS_GLOBALCLASS;
2062   wndClass.lpfnWndProc   = MONTHCAL_WindowProc;
2063   wndClass.cbClsExtra    = 0;
2064   wndClass.cbWndExtra    = sizeof(MONTHCAL_INFO *);
2065   wndClass.hCursor       = LoadCursorW(0, (LPWSTR)IDC_ARROW);
2066   wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
2067   wndClass.lpszClassName = MONTHCAL_CLASSW;
2068 
2069   RegisterClassW(&wndClass);
2070 }
2071 
2072 
2073 void
2074 MONTHCAL_Unregister(void)
2075 {
2076     UnregisterClassW(MONTHCAL_CLASSW, NULL);
2077 }
2078 

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