src/generic/calctrl.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        generic/calctrl.cpp
   3 // Purpose:     implementation fo the generic wxCalendarCtrl
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     29.12.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "calctrl.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/dcclient.h"
  33     #include "wx/settings.h"
  34     #include "wx/brush.h"
  35     #include "wx/combobox.h"
  36     #include "wx/stattext.h"
  37 #endif //WX_PRECOMP
  38
  39 #if wxUSE_CALENDARCTRL
  40
  41 #include "wx/calctrl.h"
  42
  43 #define DEBUG_PAINT 0
  44
  45 // ----------------------------------------------------------------------------
  46 // private classes
  47 // ----------------------------------------------------------------------------
  48
  49 class wxMonthComboBox : public wxComboBox
  50 {
  51 public:
  52     wxMonthComboBox(wxCalendarCtrl *cal);
  53
  54     void OnMonthChange(wxCommandEvent& event) { m_cal->OnMonthChange(event); }
  55
  56 private:
  57     wxCalendarCtrl *m_cal;
  58
  59     DECLARE_EVENT_TABLE()
  60 };
  61
  62 class wxYearSpinCtrl : public wxSpinCtrl
  63 {
  64 public:
  65     wxYearSpinCtrl(wxCalendarCtrl *cal);
  66
  67     void OnYearChange(wxSpinEvent& event) { m_cal->OnYearChange(event); }
  68
  69 private:
  70     wxCalendarCtrl *m_cal;
  71
  72     DECLARE_EVENT_TABLE()
  73 };
  74
  75 // ----------------------------------------------------------------------------
  76 // wxWin macros
  77 // ----------------------------------------------------------------------------
  78
  79 BEGIN_EVENT_TABLE(wxCalendarCtrl, wxControl)
  80     EVT_PAINT(wxCalendarCtrl::OnPaint)
  81
  82     EVT_CHAR(wxCalendarCtrl::OnChar)
  83
  84     EVT_LEFT_DOWN(wxCalendarCtrl::OnClick)
  85     EVT_LEFT_DCLICK(wxCalendarCtrl::OnDClick)
  86 END_EVENT_TABLE()
  87
  88 BEGIN_EVENT_TABLE(wxMonthComboBox, wxComboBox)
  89     EVT_COMBOBOX(-1, wxMonthComboBox::OnMonthChange)
  90 END_EVENT_TABLE()
  91
  92 BEGIN_EVENT_TABLE(wxYearSpinCtrl, wxSpinCtrl)
  93     EVT_SPINCTRL(-1, wxYearSpinCtrl::OnYearChange)
  94 END_EVENT_TABLE()
  95
  96 IMPLEMENT_DYNAMIC_CLASS(wxCalendarCtrl, wxControl)
  97 IMPLEMENT_DYNAMIC_CLASS(wxCalendarEvent, wxCommandEvent)
  98
  99 // ----------------------------------------------------------------------------
 100 // events
 101 // ----------------------------------------------------------------------------
 102
 103 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_SEL_CHANGED)
 104 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_DAY_CHANGED)
 105 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_MONTH_CHANGED)
 106 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_YEAR_CHANGED)
 107 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_DOUBLECLICKED)
 108 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_WEEKDAY_CLICKED)
 109
 110 // ============================================================================
 111 // implementation
 112 // ============================================================================
 113
 114 // ----------------------------------------------------------------------------
 115 // wxMonthComboBox and wxYearSpinCtrl
 116 // ----------------------------------------------------------------------------
 117
 118 wxMonthComboBox::wxMonthComboBox(wxCalendarCtrl *cal)
 119                : wxComboBox(cal->GetParent(), -1,
 120                             wxEmptyString,
 121                             wxDefaultPosition,
 122                             wxDefaultSize,
 123                             0, NULL,
 124                             wxCB_READONLY)
 125 {
 126     m_cal = cal;
 127
 128     wxDateTime::Month m;
 129     for ( m = wxDateTime::Jan; m < wxDateTime::Inv_Month; wxNextMonth(m) )
 130     {
 131         Append(wxDateTime::GetMonthName(m));
 132     }
 133
 134     SetSelection(m_cal->GetDate().GetMonth());
 135     SetSize(-1, -1, -1, -1, wxSIZE_AUTO_WIDTH|wxSIZE_AUTO_HEIGHT);
 136 }
 137
 138 wxYearSpinCtrl::wxYearSpinCtrl(wxCalendarCtrl *cal)
 139               : wxSpinCtrl(cal->GetParent(), -1,
 140                            cal->GetDate().Format(_T("%Y")),
 141                            wxDefaultPosition,
 142                            wxDefaultSize,
 143                            wxSP_ARROW_KEYS,
 144                            -4300, 10000, cal->GetDate().GetYear())
 145 {
 146     m_cal = cal;
 147 }
 148
 149 // ----------------------------------------------------------------------------
 150 // wxCalendarCtrl
 151 // ----------------------------------------------------------------------------
 152
 153 void wxCalendarCtrl::Init()
 154 {
 155     m_comboMonth = NULL;
 156     m_spinYear = NULL;
 157
 158     m_widthCol =
 159     m_heightRow = 0;
 160
 161     wxDateTime::WeekDay wd;
 162     for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
 163     {
 164         m_weekdays[wd] = wxDateTime::GetWeekDayName(wd, wxDateTime::Name_Abbr);
 165     }
 166
 167     for ( size_t n = 0; n < WXSIZEOF(m_attrs); n++ )
 168     {
 169         m_attrs[n] = NULL;
 170     }
 171
 172     wxSystemSettings ss;
 173     m_colHighlightFg = ss.GetSystemColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
 174     m_colHighlightBg = ss.GetSystemColour(wxSYS_COLOUR_HIGHLIGHT);
 175
 176     m_colHolidayFg = *wxRED;
 177     // don't set m_colHolidayBg - by default, same as our bg colour
 178
 179     m_colHeaderFg = *wxBLUE;
 180     m_colHeaderBg = *wxLIGHT_GREY;
 181 }
 182
 183 bool wxCalendarCtrl::Create(wxWindow *parent,
 184                             wxWindowID id,
 185                             const wxDateTime& date,
 186                             const wxPoint& pos,
 187                             const wxSize& size,
 188                             long style,
 189                             const wxString& name)
 190 {
 191     if ( !wxControl::Create(parent, id, pos, size,
 192                             style | wxWANTS_CHARS, wxDefaultValidator, name) )
 193     {
 194         return FALSE;
 195     }
 196
 197     // needed to get the arrow keys normally used for the dialog navigation
 198     SetWindowStyle(style | wxWANTS_CHARS);
 199
 200     m_date = date.IsValid() ? date : wxDateTime::Today();
 201
 202     m_lowdate = wxDefaultDateTime;
 203     m_highdate = wxDefaultDateTime;
 204
 205     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 206     {
 207         m_spinYear = new wxYearSpinCtrl(this);
 208         m_staticYear = new wxStaticText(GetParent(), -1, m_date.Format(_T("%Y")),
 209                                         wxDefaultPosition, wxDefaultSize,
 210                                         wxALIGN_CENTRE);
 211
 212         m_comboMonth = new wxMonthComboBox(this);
 213         m_staticMonth = new wxStaticText(GetParent(), -1, m_date.Format(_T("%B")),
 214                                          wxDefaultPosition, wxDefaultSize,
 215                                          wxALIGN_CENTRE);
 216     }
 217
 218     ShowCurrentControls();
 219
 220     wxSize sizeReal;
 221     if ( size.x == -1 || size.y == -1 )
 222     {
 223         sizeReal = DoGetBestSize();
 224         if ( size.x != -1 )
 225             sizeReal.x = size.x;
 226         if ( size.y != -1 )
 227             sizeReal.y = size.y;
 228     }
 229     else
 230     {
 231         sizeReal = size;
 232     }
 233
 234     SetSize(sizeReal);
 235
 236     SetBackgroundColour(*wxWHITE);
 237     SetFont(*wxSWISS_FONT);
 238
 239     SetHolidayAttrs();
 240
 241     return TRUE;
 242 }
 243
 244 wxCalendarCtrl::~wxCalendarCtrl()
 245 {
 246     for ( size_t n = 0; n < WXSIZEOF(m_attrs); n++ )
 247     {
 248         delete m_attrs[n];
 249     }
 250 }
 251
 252 // ----------------------------------------------------------------------------
 253 // forward wxWin functions to subcontrols
 254 // ----------------------------------------------------------------------------
 255
 256 bool wxCalendarCtrl::Show(bool show)
 257 {
 258     if ( !wxControl::Show(show) )
 259     {
 260         return FALSE;
 261     }
 262
 263     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 264     {
 265         if ( GetMonthControl() )
 266         {
 267             GetMonthControl()->Show(show);
 268             GetYearControl()->Show(show);
 269         }
 270     }
 271
 272     return TRUE;
 273 }
 274
 275 bool wxCalendarCtrl::Enable(bool enable)
 276 {
 277     if ( !wxControl::Enable(enable) )
 278     {
 279         return FALSE;
 280     }
 281
 282     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 283     {
 284         GetMonthControl()->Enable(enable);
 285         GetYearControl()->Enable(enable);
 286     }
 287
 288     return TRUE;
 289 }
 290
 291 // ----------------------------------------------------------------------------
 292 // enable/disable month/year controls
 293 // ----------------------------------------------------------------------------
 294
 295 void wxCalendarCtrl::ShowCurrentControls()
 296 {
 297     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 298     {
 299         if ( AllowMonthChange() )
 300         {
 301             m_comboMonth->Show();
 302             m_staticMonth->Hide();
 303
 304             if ( AllowYearChange() )
 305             {
 306                 m_spinYear->Show();
 307                 m_staticYear->Hide();
 308
 309                 // skip the rest
 310                 return;
 311             }
 312         }
 313         else
 314         {
 315             m_comboMonth->Hide();
 316             m_staticMonth->Show();
 317         }
 318
 319         // year change not allowed here
 320         m_spinYear->Hide();
 321         m_staticYear->Show();
 322     }
 323 }
 324
 325 wxControl *wxCalendarCtrl::GetMonthControl() const
 326 {
 327     return AllowMonthChange() ? (wxControl *)m_comboMonth : (wxControl *)m_staticMonth;
 328 }
 329
 330 wxControl *wxCalendarCtrl::GetYearControl() const
 331 {
 332     return AllowYearChange() ? (wxControl *)m_spinYear : (wxControl *)m_staticYear;
 333 }
 334
 335 void wxCalendarCtrl::EnableYearChange(bool enable)
 336 {
 337     if ( enable != AllowYearChange() )
 338     {
 339         long style = GetWindowStyle();
 340         if ( enable )
 341             style &= ~wxCAL_NO_YEAR_CHANGE;
 342         else
 343             style |= wxCAL_NO_YEAR_CHANGE;
 344         SetWindowStyle(style);
 345
 346         ShowCurrentControls();
 347         if ( GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION )
 348         {
 349             Refresh();
 350         }
 351     }
 352 }
 353
 354 void wxCalendarCtrl::EnableMonthChange(bool enable)
 355 {
 356     if ( enable != AllowMonthChange() )
 357     {
 358         long style = GetWindowStyle();
 359         if ( enable )
 360             style &= ~wxCAL_NO_MONTH_CHANGE;
 361         else
 362             style |= wxCAL_NO_MONTH_CHANGE;
 363         SetWindowStyle(style);
 364
 365         ShowCurrentControls();
 366         if ( GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION )
 367         {
 368             Refresh();
 369         }
 370     }
 371 }
 372
 373 // ----------------------------------------------------------------------------
 374 // changing date
 375 // ----------------------------------------------------------------------------
 376
 377 bool wxCalendarCtrl::SetDate(const wxDateTime& date)
 378 {
 379     bool retval = FALSE;
 380
 381     bool sameMonth = m_date.GetMonth() == date.GetMonth(),
 382          sameYear = m_date.GetYear() == date.GetYear();
 383
 384     if ( IsDateInRange(date) )
 385     {
 386         if ( sameMonth && sameYear )
 387         {
 388             // just change the day
 389             retval = TRUE;
 390             ChangeDay(date);
 391         }
 392         else
 393         {
 394             if ( !AllowMonthChange() || (!AllowYearChange() && !sameYear) )
 395             {
 396                 // forbidden
 397                 return retval;
 398             }
 399
 400             // change everything
 401             retval = TRUE;
 402             m_date = date;
 403
 404             if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 405             {
 406                 // update the controls
 407                 m_comboMonth->SetSelection(m_date.GetMonth());
 408
 409                 if ( AllowYearChange() )
 410                 {
 411                     m_spinYear->SetValue(m_date.Format(_T("%Y")));
 412                 }
 413             }
 414
 415             // as the month changed, holidays did too
 416             SetHolidayAttrs();
 417
 418             // update the calendar
 419             Refresh();
 420         }
 421     }
 422
 423     return retval;
 424 }
 425
 426 void wxCalendarCtrl::ChangeDay(const wxDateTime& date)
 427 {
 428     if ( m_date != date )
 429     {
 430         // we need to refresh the row containing the old date and the one
 431         // containing the new one
 432         wxDateTime dateOld = m_date;
 433         m_date = date;
 434
 435         RefreshDate(dateOld);
 436
 437         // if the date is in the same row, it was already drawn correctly
 438         if ( GetWeek(m_date) != GetWeek(dateOld) )
 439         {
 440             RefreshDate(m_date);
 441         }
 442     }
 443 }
 444
 445 void wxCalendarCtrl::SetDateAndNotify(const wxDateTime& date)
 446 {
 447     wxDateTime::Tm tm1 = m_date.GetTm(),
 448                    tm2 = date.GetTm();
 449
 450     wxEventType type;
 451     if ( tm1.year != tm2.year )
 452         type = wxEVT_CALENDAR_YEAR_CHANGED;
 453     else if ( tm1.mon != tm2.mon )
 454         type = wxEVT_CALENDAR_MONTH_CHANGED;
 455     else if ( tm1.mday != tm2.mday )
 456         type = wxEVT_CALENDAR_DAY_CHANGED;
 457     else
 458         return;
 459
 460     if ( SetDate(date) )
 461     {
 462         GenerateEvents(type, wxEVT_CALENDAR_SEL_CHANGED);
 463     }
 464 }
 465
 466 // ----------------------------------------------------------------------------
 467 // date range
 468 // ----------------------------------------------------------------------------
 469
 470 bool wxCalendarCtrl::SetLowerDateLimit(const wxDateTime& date /* = wxDefaultDateTime */)
 471 {
 472     bool retval = TRUE;
 473
 474     if ( !(date.IsValid()) || ( ( m_highdate.IsValid() ) ? ( date <= m_highdate ) : TRUE ) )
 475     {
 476         m_lowdate = date;
 477     }
 478     else
 479     {
 480         retval = FALSE;
 481     }
 482
 483     return retval;
 484 }
 485
 486 bool wxCalendarCtrl::SetUpperDateLimit(const wxDateTime& date /* = wxDefaultDateTime */)
 487 {
 488     bool retval = TRUE;
 489
 490     if ( !(date.IsValid()) || ( ( m_lowdate.IsValid() ) ? ( date >= m_lowdate ) : TRUE ) )
 491     {
 492         m_highdate = date;
 493     }
 494     else
 495     {
 496         retval = FALSE;
 497     }
 498
 499     return retval;
 500 }
 501
 502 bool wxCalendarCtrl::SetDateRange(const wxDateTime& lowerdate /* = wxDefaultDateTime */, const wxDateTime& upperdate /* = wxDefaultDateTime */)
 503 {
 504     bool retval = TRUE;
 505
 506     if (
 507         ( !( lowerdate.IsValid() ) || ( ( upperdate.IsValid() ) ? ( lowerdate <= upperdate ) : TRUE ) ) &&
 508         ( !( upperdate.IsValid() ) || ( ( lowerdate.IsValid() ) ? ( upperdate >= lowerdate ) : TRUE ) ) )
 509     {
 510         m_lowdate = lowerdate;
 511         m_highdate = upperdate;
 512     }
 513     else
 514     {
 515         retval = FALSE;
 516     }
 517
 518     return retval;
 519 }
 520
 521 // ----------------------------------------------------------------------------
 522 // date helpers
 523 // ----------------------------------------------------------------------------
 524
 525 wxDateTime wxCalendarCtrl::GetStartDate() const
 526 {
 527     wxDateTime::Tm tm = m_date.GetTm();
 528
 529     wxDateTime date = wxDateTime(1, tm.mon, tm.year);
 530
 531     // rewind back
 532     date.SetToPrevWeekDay(GetWindowStyle() & wxCAL_MONDAY_FIRST
 533                           ? wxDateTime::Mon : wxDateTime::Sun);
 534
 535     if ( GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS )
 536     {
 537         // We want to offset the calendar if we start on the first..
 538         if ( date.GetDay() == 1 )
 539         {
 540             date -= wxDateSpan::Week();
 541         }
 542     }
 543
 544     return date;
 545 }
 546
 547 bool wxCalendarCtrl::IsDateShown(const wxDateTime& date) const
 548 {
 549     if ( !(GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) )
 550     {
 551         return date.GetMonth() == m_date.GetMonth();
 552     }
 553     else
 554     {
 555         return TRUE;
 556     }
 557 }
 558
 559 bool wxCalendarCtrl::IsDateInRange(const wxDateTime& date) const
 560 {
 561     bool retval = TRUE;
 562     // Check if the given date is in the range specified
 563     retval = ( ( ( m_lowdate.IsValid() ) ? ( date >= m_lowdate ) : TRUE )
 564         && ( ( m_highdate.IsValid() ) ? ( date <= m_highdate ) : TRUE ) );
 565     return retval;
 566 }
 567
 568 bool wxCalendarCtrl::ChangeYear(wxDateTime* target) const
 569 {
 570     bool retval = FALSE;
 571
 572     if ( !(IsDateInRange(*target)) )
 573     {
 574         if ( target->GetYear() < m_date.GetYear() )
 575         {
 576             if ( target->GetYear() >= GetLowerDateLimit().GetYear() )
 577             {
 578                 *target = GetLowerDateLimit();
 579                 retval = TRUE;
 580             }
 581             else
 582             {
 583                 *target = m_date;
 584             }
 585         }
 586         else
 587         {
 588             if ( target->GetYear() <= GetUpperDateLimit().GetYear() )
 589             {
 590                 *target = GetUpperDateLimit();
 591                 retval = TRUE;
 592             }
 593             else
 594             {
 595                 *target = m_date;
 596             }
 597         }
 598     }
 599     else
 600     {
 601         retval = TRUE;
 602     }
 603
 604     return retval;
 605 }
 606
 607 bool wxCalendarCtrl::ChangeMonth(wxDateTime* target) const
 608 {
 609     bool retval = TRUE;
 610
 611     if ( !(IsDateInRange(*target)) )
 612     {
 613         retval = FALSE;
 614
 615         if ( target->GetMonth() < m_date.GetMonth() )
 616         {
 617             *target = GetLowerDateLimit();
 618         }
 619         else
 620         {
 621             *target = GetUpperDateLimit();
 622         }
 623     }
 624
 625     return retval;
 626 }
 627
 628 size_t wxCalendarCtrl::GetWeek(const wxDateTime& date) const
 629 {
 630     size_t retval = date.GetWeekOfMonth(GetWindowStyle() & wxCAL_MONDAY_FIRST
 631                                    ? wxDateTime::Monday_First
 632                                    : wxDateTime::Sunday_First);
 633
 634     if ( (GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) )
 635     {
 636         // we need to offset an extra week if we "start" on the 1st of the month
 637         wxDateTime::Tm tm = date.GetTm();
 638
 639         wxDateTime datetest = wxDateTime(1, tm.mon, tm.year);
 640
 641         // rewind back
 642         datetest.SetToPrevWeekDay(GetWindowStyle() & wxCAL_MONDAY_FIRST
 643                               ? wxDateTime::Mon : wxDateTime::Sun);
 644
 645         if ( datetest.GetDay() == 1 )
 646         {
 647             retval += 1;
 648         }
 649     }
 650
 651     return retval;
 652 }
 653
 654 // ----------------------------------------------------------------------------
 655 // size management
 656 // ----------------------------------------------------------------------------
 657
 658 // this is a composite control and it must arrange its parts each time its
 659 // size or position changes: the combobox and spinctrl are along the top of
 660 // the available area and the calendar takes up therest of the space
 661
 662 // the static controls are supposed to be always smaller than combo/spin so we
 663 // always use the latter for size calculations and position the static to take
 664 // the same space
 665
 666 // the constants used for the layout
 667 #define VERT_MARGIN     5           // distance between combo and calendar
 668 #define HORZ_MARGIN    15           //                            spin
 669
 670 wxSize wxCalendarCtrl::DoGetBestSize() const
 671 {
 672     // calc the size of the calendar
 673     ((wxCalendarCtrl *)this)->RecalcGeometry(); // const_cast
 674
 675     wxCoord width = 7*m_widthCol,
 676             height = 7*m_heightRow + m_rowOffset;
 677
 678     // the combobox doesn't report its height correctly (it returns the
 679     // height including the drop down list) so don't use it
 680
 681     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 682     {
 683         height += VERT_MARGIN + m_spinYear->GetBestSize().y;
 684     }
 685     else
 686     {
 687         height += VERT_MARGIN;
 688     }
 689
 690 //    if ( GetWindowStyle() & (wxRAISED_BORDER | wxSUNKEN_BORDER) ) // This doesn't work. Default is wxBORDER_DEFAULT (0)
 691     if ( !(GetWindowStyle() & wxBORDER_NONE) )
 692     {
 693         // the border would clip the last line otherwise
 694         height += 6;
 695         width += 4;
 696     }
 697
 698     return wxSize(width, height);
 699 }
 700
 701 void wxCalendarCtrl::DoSetSize(int x, int y,
 702                                int width, int height,
 703                                int sizeFlags)
 704 {
 705     wxControl::DoSetSize(x, y, width, height, sizeFlags);
 706 }
 707
 708 void wxCalendarCtrl::DoMoveWindow(int x, int y, int width, int height)
 709 {
 710     int xDiff = 0;
 711     int yDiff = 0;
 712
 713     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 714     {
 715         wxSize sizeCombo = m_comboMonth->GetSize();
 716         wxSize sizeStatic = m_staticMonth->GetSize();
 717
 718         int dy = (sizeCombo.y - sizeStatic.y) / 2;
 719
 720         m_comboMonth->Move(x, y);
 721         m_staticMonth->SetSize(x, y + dy, sizeCombo.x, sizeStatic.y);
 722
 723         xDiff = sizeCombo.x + HORZ_MARGIN;
 724
 725         m_spinYear->SetSize(x + xDiff, y, width - xDiff, sizeCombo.y);
 726         m_staticYear->SetSize(x + xDiff, y + dy, width - xDiff, sizeStatic.y);
 727
 728         wxSize sizeSpin = m_spinYear->GetSize();
 729         yDiff = wxMax(sizeSpin.y, sizeCombo.y) + VERT_MARGIN;
 730     }
 731
 732     wxControl::DoMoveWindow(x, y + yDiff, width, height - yDiff);
 733 }
 734
 735 void wxCalendarCtrl::DoGetPosition(int *x, int *y) const
 736 {
 737     wxControl::DoGetPosition(x, y);
 738
 739     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 740     {
 741         // our real top corner is not in this position
 742         if ( y )
 743         {
 744             *y -= GetMonthControl()->GetSize().y + VERT_MARGIN;
 745         }
 746     }
 747 }
 748
 749 void wxCalendarCtrl::DoGetSize(int *width, int *height) const
 750 {
 751     wxControl::DoGetSize(width, height);
 752
 753     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 754     {
 755         // our real height is bigger
 756         if ( height )
 757         {
 758             *height += GetMonthControl()->GetSize().y + VERT_MARGIN;
 759         }
 760     }
 761 }
 762
 763 void wxCalendarCtrl::RecalcGeometry()
 764 {
 765     if ( m_widthCol != 0 )
 766         return;
 767
 768     wxClientDC dc(this);
 769
 770     dc.SetFont(m_font);
 771
 772     // determine the column width (we assume that the weekday names are always
 773     // wider (in any language) than the numbers)
 774     m_widthCol = 0;
 775     wxDateTime::WeekDay wd;
 776     for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
 777     {
 778         wxCoord width;
 779         dc.GetTextExtent(m_weekdays[wd], &width, &m_heightRow);
 780         if ( width > m_widthCol )
 781         {
 782             m_widthCol = width;
 783         }
 784     }
 785
 786     // leave some margins
 787     m_widthCol += 2;
 788     m_heightRow += 2;
 789
 790     m_rowOffset = (GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) ? m_heightRow : 0; // conditional in relation to style
 791 }
 792
 793 // ----------------------------------------------------------------------------
 794 // drawing
 795 // ----------------------------------------------------------------------------
 796
 797 void wxCalendarCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
 798 {
 799     wxPaintDC dc(this);
 800
 801     dc.SetFont(m_font);
 802
 803     RecalcGeometry();
 804
 805 #if DEBUG_PAINT
 806     wxLogDebug("--- starting to paint, selection: %s, week %u\n",
 807            m_date.Format("%a %d-%m-%Y %H:%M:%S").c_str(),
 808            GetWeek(m_date));
 809 #endif
 810
 811     wxCoord y = 0;
 812
 813 /////////////////////////////////////////////////////////////////////////////////////////
 814
 815     if ( (GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 816     {
 817         // draw the sequential month-selector
 818
 819         dc.SetBackgroundMode(wxTRANSPARENT);
 820         dc.SetTextForeground(*wxBLACK);
 821         dc.SetBrush(wxBrush(m_colHeaderBg, wxSOLID));
 822         dc.SetPen(wxPen(m_colHeaderBg, 1, wxSOLID));
 823         dc.DrawRectangle(0, y, 7*m_widthCol, m_heightRow);
 824
 825         // Get extent of month-name + year
 826         wxCoord monthw, monthh;
 827         wxString headertext = m_date.Format(wxT("%B %Y"));
 828         dc.GetTextExtent(headertext, &monthw, &monthh);
 829
 830         // draw month-name centered above weekdays
 831         wxCoord monthx = ((m_widthCol * 7) - monthw) / 2;
 832         wxCoord monthy = ((m_heightRow - monthh) / 2) + y;
 833         dc.DrawText(headertext, monthx,  monthy);
 834
 835         // calculate the "month-arrows"
 836         wxPoint leftarrow[3];
 837         wxPoint rightarrow[3];
 838
 839         int arrowheight = monthh / 2;
 840
 841         leftarrow[0] = wxPoint(0, arrowheight / 2);
 842         leftarrow[1] = wxPoint(arrowheight / 2, 0);
 843         leftarrow[2] = wxPoint(arrowheight / 2, arrowheight - 1);
 844
 845         rightarrow[0] = wxPoint(0, 0);
 846         rightarrow[1] = wxPoint(arrowheight / 2, arrowheight / 2);
 847         rightarrow[2] = wxPoint(0, arrowheight - 1);
 848
 849         // draw the "month-arrows"
 850
 851         wxCoord arrowy = (m_heightRow - arrowheight) / 2;
 852         wxCoord larrowx = (m_widthCol - (arrowheight / 2)) / 2;
 853         wxCoord rarrowx = ((m_widthCol - (arrowheight / 2)) / 2) + m_widthCol*6;
 854         m_leftArrowRect = wxRect(0, 0, 0, 0);
 855         m_rightArrowRect = wxRect(0, 0, 0, 0);
 856
 857         if ( AllowMonthChange() )
 858         {
 859             wxDateTime ldpm = wxDateTime(1,m_date.GetMonth(), m_date.GetYear()) - wxDateSpan::Day(); // last day prev month
 860             // Check if range permits change
 861             if ( IsDateInRange(ldpm) && ( ( ldpm.GetYear() == m_date.GetYear() ) ? TRUE : AllowYearChange() ) )
 862             {
 863                 m_leftArrowRect = wxRect(larrowx - 3, arrowy - 3, (arrowheight / 2) + 8, (arrowheight + 6));
 864                 dc.SetBrush(wxBrush(*wxBLACK, wxSOLID));
 865                 dc.SetPen(wxPen(*wxBLACK, 1, wxSOLID));
 866                 dc.DrawPolygon(3, leftarrow, larrowx , arrowy, wxWINDING_RULE);
 867                 dc.SetBrush(*wxTRANSPARENT_BRUSH);
 868                 dc.DrawRectangle(m_leftArrowRect);
 869             }
 870             wxDateTime fdnm = wxDateTime(1,m_date.GetMonth(), m_date.GetYear()) + wxDateSpan::Month(); // first day next month
 871             if ( IsDateInRange(fdnm) && ( ( fdnm.GetYear() == m_date.GetYear() ) ? TRUE : AllowYearChange() ) )
 872             {
 873                 m_rightArrowRect = wxRect(rarrowx - 4, arrowy - 3, (arrowheight / 2) + 8, (arrowheight + 6));
 874                 dc.SetBrush(wxBrush(*wxBLACK, wxSOLID));
 875                 dc.SetPen(wxPen(*wxBLACK, 1, wxSOLID));
 876                 dc.DrawPolygon(3, rightarrow, rarrowx , arrowy, wxWINDING_RULE);
 877                 dc.SetBrush(*wxTRANSPARENT_BRUSH);
 878                 dc.DrawRectangle(m_rightArrowRect);
 879             }
 880         }
 881
 882         y += m_heightRow;
 883     }
 884
 885 /////////////////////////////////////////////////////////////////////////////////////////
 886
 887     // first draw the week days
 888     if ( IsExposed(0, y, 7*m_widthCol, m_heightRow) )
 889     {
 890 #if DEBUG_PAINT
 891         wxLogDebug("painting the header");
 892 #endif
 893
 894         dc.SetBackgroundMode(wxTRANSPARENT);
 895         dc.SetTextForeground(m_colHeaderFg);
 896         dc.SetBrush(wxBrush(m_colHeaderBg, wxSOLID));
 897         dc.SetPen(wxPen(m_colHeaderBg, 1, wxSOLID));
 898         dc.DrawRectangle(0, y, 7*m_widthCol, m_heightRow);
 899
 900         bool startOnMonday = (GetWindowStyle() & wxCAL_MONDAY_FIRST) != 0;
 901         for ( size_t wd = 0; wd < 7; wd++ )
 902         {
 903             size_t n;
 904             if ( startOnMonday )
 905                 n = wd == 6 ? 0 : wd + 1;
 906             else
 907                 n = wd;
 908             wxCoord dayw, dayh;
 909             dc.GetTextExtent(m_weekdays[n], &dayw, &dayh);
 910 //            dc.DrawText(m_weekdays[n], wd*m_widthCol + 1, y);
 911             dc.DrawText(m_weekdays[n], (wd*m_widthCol) + ((m_widthCol- dayw) / 2), y); // center the day-name
 912         }
 913     }
 914
 915     // then the calendar itself
 916     dc.SetTextForeground(*wxBLACK);
 917     //dc.SetFont(*wxNORMAL_FONT);
 918
 919     y += m_heightRow;
 920     wxDateTime date = GetStartDate();
 921
 922 #if DEBUG_PAINT
 923     wxLogDebug("starting calendar from %s\n",
 924             date.Format("%a %d-%m-%Y %H:%M:%S").c_str());
 925 #endif
 926
 927     dc.SetBackgroundMode(wxSOLID);
 928     for ( size_t nWeek = 1; nWeek <= 6; nWeek++, y += m_heightRow )
 929     {
 930         // if the update region doesn't intersect this row, don't paint it
 931         if ( !IsExposed(0, y, 7*m_widthCol, m_heightRow - 1) )
 932         {
 933             date += wxDateSpan::Week();
 934
 935             continue;
 936         }
 937
 938 #if DEBUG_PAINT
 939         wxLogDebug("painting week %d at y = %d\n", nWeek, y);
 940 #endif
 941
 942         for ( size_t wd = 0; wd < 7; wd++ )
 943         {
 944             if ( IsDateShown(date) )
 945             {
 946                 // don't use wxDate::Format() which prepends 0s
 947                 unsigned int day = date.GetDay();
 948                 wxString dayStr = wxString::Format(_T("%u"), day);
 949                 wxCoord width;
 950                 dc.GetTextExtent(dayStr, &width, (wxCoord *)NULL);
 951
 952                 bool changedColours = FALSE,
 953                      changedFont = FALSE;
 954
 955                 bool isSel = FALSE;
 956                 wxCalendarDateAttr *attr = NULL;
 957
 958                 if ( date.GetMonth() != m_date.GetMonth() || !IsDateInRange(date) )
 959                 {
 960                     // surrounding week or out-of-range
 961                     // draw "disabled"
 962                     dc.SetTextForeground(*wxLIGHT_GREY);
 963                     changedColours = TRUE;
 964                 }
 965                 else
 966                 {
 967                     isSel = date.IsSameDate(m_date);
 968                     attr = m_attrs[day - 1];
 969
 970                     if ( isSel )
 971                     {
 972                         dc.SetTextForeground(m_colHighlightFg);
 973                         dc.SetTextBackground(m_colHighlightBg);
 974
 975                         changedColours = TRUE;
 976                     }
 977                     else if ( attr )
 978                     {
 979                         wxColour colFg, colBg;
 980
 981                         if ( attr->IsHoliday() )
 982                         {
 983                             colFg = m_colHolidayFg;
 984                             colBg = m_colHolidayBg;
 985                         }
 986                         else
 987                         {
 988                             colFg = attr->GetTextColour();
 989                             colBg = attr->GetBackgroundColour();
 990                         }
 991
 992                         if ( colFg.Ok() )
 993                         {
 994                             dc.SetTextForeground(colFg);
 995                             changedColours = TRUE;
 996                         }
 997
 998                         if ( colBg.Ok() )
 999                         {
1000                             dc.SetTextBackground(colBg);
1001                             changedColours = TRUE;
1002                         }
1003
1004                         if ( attr->HasFont() )
1005                         {
1006                             dc.SetFont(attr->GetFont());
1007                             changedFont = TRUE;
1008                         }
1009                     }
1010                 }
1011
1012                 wxCoord x = wd*m_widthCol + (m_widthCol - width) / 2;
1013                 dc.DrawText(dayStr, x, y + 1);
1014
1015                 if ( !isSel && attr && attr->HasBorder() )
1016                 {
1017                     wxColour colBorder;
1018                     if ( attr->HasBorderColour() )
1019                     {
1020                         colBorder = attr->GetBorderColour();
1021                     }
1022                     else
1023                     {
1024                         colBorder = m_foregroundColour;
1025                     }
1026
1027                     wxPen pen(colBorder, 1, wxSOLID);
1028                     dc.SetPen(pen);
1029                     dc.SetBrush(*wxTRANSPARENT_BRUSH);
1030
1031                     switch ( attr->GetBorder() )
1032                     {
1033                         case wxCAL_BORDER_SQUARE:
1034                             dc.DrawRectangle(x - 2, y,
1035                                              width + 4, m_heightRow);
1036                             break;
1037
1038                         case wxCAL_BORDER_ROUND:
1039                             dc.DrawEllipse(x - 2, y,
1040                                            width + 4, m_heightRow);
1041                             break;
1042
1043                         default:
1044                             wxFAIL_MSG(_T("unknown border type"));
1045                     }
1046                 }
1047
1048                 if ( changedColours )
1049                 {
1050                     dc.SetTextForeground(m_foregroundColour);
1051                     dc.SetTextBackground(m_backgroundColour);
1052                 }
1053
1054                 if ( changedFont )
1055                 {
1056                     dc.SetFont(m_font);
1057                 }
1058             }
1059             //else: just don't draw it
1060
1061             date += wxDateSpan::Day();
1062         }
1063     }
1064
1065     // Greying out out-of-range background
1066     bool showSurrounding = (GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) != 0;
1067
1068     date = ( showSurrounding ) ? GetStartDate() : wxDateTime(1, m_date.GetMonth(), m_date.GetYear());
1069     if ( !IsDateInRange(date) )
1070     {
1071         wxDateTime firstOOR = GetLowerDateLimit() - wxDateSpan::Day(); // first out-of-range
1072
1073         wxBrush oorbrush = *wxLIGHT_GREY_BRUSH;
1074         oorbrush.SetStyle(wxFDIAGONAL_HATCH);
1075
1076         HighlightRange(&dc, date, firstOOR, wxTRANSPARENT_PEN, &oorbrush);
1077     }
1078
1079     date = ( showSurrounding ) ? GetStartDate() + wxDateSpan::Weeks(6) - wxDateSpan::Day() : wxDateTime().SetToLastMonthDay(m_date.GetMonth(), m_date.GetYear());
1080     if ( !IsDateInRange(date) )
1081     {
1082         wxDateTime firstOOR = GetUpperDateLimit() + wxDateSpan::Day(); // first out-of-range
1083
1084         wxBrush oorbrush = *wxLIGHT_GREY_BRUSH;
1085         oorbrush.SetStyle(wxFDIAGONAL_HATCH);
1086
1087         HighlightRange(&dc, firstOOR, date, wxTRANSPARENT_PEN, &oorbrush);
1088     }
1089
1090 #if DEBUG_PAINT
1091     wxLogDebug("+++ finished painting");
1092 #endif
1093 }
1094
1095 void wxCalendarCtrl::RefreshDate(const wxDateTime& date)
1096 {
1097     RecalcGeometry();
1098
1099     wxRect rect;
1100
1101     // always refresh the whole row at once because our OnPaint() will draw
1102     // the whole row anyhow - and this allows the small optimisation in
1103     // OnClick() below to work
1104     rect.x = 0;
1105
1106     rect.y = (m_heightRow * GetWeek(date)) + m_rowOffset;
1107
1108     rect.width = 7*m_widthCol;
1109     rect.height = m_heightRow;
1110
1111 #ifdef __WXMSW__
1112     // VZ: for some reason, the selected date seems to occupy more space under
1113     //     MSW - this is probably some bug in the font size calculations, but I
1114     //     don't know where exactly. This fix is ugly and leads to more
1115     //     refreshes than really needed, but without it the selected days
1116     //     leaves even more ugly underscores on screen.
1117     rect.Inflate(0, 1);
1118 #endif // MSW
1119
1120 #if DEBUG_PAINT
1121     wxLogDebug("*** refreshing week %d at (%d, %d)-(%d, %d)\n",
1122            GetWeek(date),
1123            rect.x, rect.y,
1124            rect.x + rect.width, rect.y + rect.height);
1125 #endif
1126
1127     Refresh(TRUE, &rect);
1128 }
1129
1130 void wxCalendarCtrl::HighlightRange(wxPaintDC* pDC, const wxDateTime& fromdate, const wxDateTime& todate, wxPen* pPen, wxBrush* pBrush)
1131 {
1132     // Highlights the given range using pen and brush
1133     // Does nothing if todate < fromdate
1134
1135
1136 #if DEBUG_PAINT
1137     wxLogDebug("+++ HighlightRange: (%s) - (%s) +++", fromdate.Format("%d %m %Y"), todate.Format("%d %m %Y"));
1138 #endif
1139
1140     if ( todate >= fromdate )
1141     {
1142         // do stuff
1143         // date-coordinates
1144         int fd, fw;
1145         int td, tw;
1146
1147         // implicit: both dates must be currently shown - checked by GetDateCoord
1148         if ( GetDateCoord(fromdate, &fd, &fw) && GetDateCoord(todate, &td, &tw) )
1149         {
1150 #if DEBUG_PAINT
1151             wxLogDebug("Highlight range: (%i, %i) - (%i, %i)", fd, fw, td, tw);
1152 #endif
1153             if ( ( (tw - fw) == 1 ) && ( td < fd ) )
1154             {
1155                 // special case: interval 7 days or less not in same week
1156                 // split in two seperate intervals
1157                 wxDateTime tfd = fromdate + wxDateSpan::Days(7-fd);
1158                 wxDateTime ftd = tfd + wxDateSpan::Day();
1159 #if DEBUG_PAINT
1160                 wxLogDebug("Highlight: Seperate segments");
1161 #endif
1162                 // draw seperately
1163                 HighlightRange(pDC, fromdate, tfd, pPen, pBrush);
1164                 HighlightRange(pDC, ftd, todate, pPen, pBrush);
1165             }
1166             else
1167             {
1168                 int numpoints;
1169                 wxPoint corners[8]; // potentially 8 corners in polygon
1170
1171                 if ( fw == tw )
1172                 {
1173                     // simple case: same week
1174                     numpoints = 4;
1175                     corners[0] = wxPoint((fd - 1) * m_widthCol, (fw * m_heightRow) + m_rowOffset);
1176                     corners[1] = wxPoint((fd - 1) * m_widthCol, ((fw + 1 ) * m_heightRow) + m_rowOffset);
1177                     corners[2] = wxPoint(td * m_widthCol, ((tw + 1) * m_heightRow) + m_rowOffset);
1178                     corners[3] = wxPoint(td * m_widthCol, (tw * m_heightRow) + m_rowOffset);
1179                 }
1180                 else
1181                 {
1182                     int cidx = 0;
1183                     // "complex" polygon
1184                     corners[cidx] = wxPoint((fd - 1) * m_widthCol, (fw * m_heightRow) + m_rowOffset); cidx++;
1185
1186                     if ( fd > 1 )
1187                     {
1188                         corners[cidx] = wxPoint((fd - 1) * m_widthCol, ((fw + 1) * m_heightRow) + m_rowOffset); cidx++;
1189                         corners[cidx] = wxPoint(0, ((fw + 1) * m_heightRow) + m_rowOffset); cidx++;
1190                     }
1191
1192                     corners[cidx] = wxPoint(0, ((tw + 1) * m_heightRow) + m_rowOffset); cidx++;
1193                     corners[cidx] = wxPoint(td * m_widthCol, ((tw + 1) * m_heightRow) + m_rowOffset); cidx++;
1194
1195                     if ( td < 7 )
1196                     {
1197                         corners[cidx] = wxPoint(td * m_widthCol, (tw * m_heightRow) + m_rowOffset); cidx++;
1198                         corners[cidx] = wxPoint(7 * m_widthCol, (tw * m_heightRow) + m_rowOffset); cidx++;
1199                     }
1200
1201                     corners[cidx] = wxPoint(7 * m_widthCol, (fw * m_heightRow) + m_rowOffset); cidx++;
1202
1203                     numpoints = cidx;
1204                 }
1205
1206                 // draw the polygon
1207                 pDC->SetBrush(*pBrush);
1208                 pDC->SetPen(*pPen);
1209                 pDC->DrawPolygon(numpoints, corners);
1210             }
1211         }
1212     }
1213     // else do nothing
1214 #if DEBUG_PAINT
1215     wxLogDebug("--- HighlightRange ---");
1216 #endif
1217 }
1218
1219 bool wxCalendarCtrl::GetDateCoord(const wxDateTime& date, int *day, int *week) const
1220 {
1221     bool retval = TRUE;
1222
1223 #if DEBUG_PAINT
1224     wxLogDebug("+++ GetDateCoord: (%s) +++", date.Format("%d %m %Y"));
1225 #endif
1226
1227     if ( IsDateShown(date) )
1228     {
1229         bool startOnMonday = ( GetWindowStyle() & wxCAL_MONDAY_FIRST ) != 0;
1230
1231         // Find day
1232         *day = date.GetWeekDay();
1233
1234         if ( *day == 0 ) // sunday
1235         {
1236             *day = ( startOnMonday ) ? 7 : 1;
1237         }
1238         else
1239         {
1240             day += ( startOnMonday ) ? 0 : 1;
1241         }
1242
1243         int targetmonth = date.GetMonth() + (12 * date.GetYear());
1244         int thismonth = m_date.GetMonth() + (12 * m_date.GetYear());
1245
1246         // Find week
1247         if ( targetmonth == thismonth )
1248         {
1249             *week = GetWeek(date);
1250         }
1251         else
1252         {
1253             if ( targetmonth < thismonth )
1254             {
1255                 *week = 1; // trivial
1256             }
1257             else // targetmonth > thismonth
1258             {
1259                 wxDateTime ldcm;
1260                 int lastweek;
1261                 int lastday;
1262
1263                 // get the datecoord of the last day in the month currently shown
1264 #if DEBUG_PAINT
1265                 wxLogDebug("     +++ LDOM +++");
1266 #endif
1267                 GetDateCoord(ldcm.SetToLastMonthDay(m_date.GetMonth(), m_date.GetYear()), &lastday, &lastweek);
1268 #if DEBUG_PAINT
1269                 wxLogDebug("     --- LDOM ---");
1270 #endif
1271
1272                 wxTimeSpan span = date - ldcm;
1273
1274                 int daysfromlast = span.GetDays();
1275 #if DEBUG_PAINT
1276                 wxLogDebug("daysfromlast: %i", daysfromlast);
1277 #endif
1278                 if ( daysfromlast + lastday > 7 ) // past week boundary
1279                 {
1280                     int wholeweeks = (daysfromlast / 7);
1281                     *week = wholeweeks + lastweek;
1282                     if ( (daysfromlast - (7 * wholeweeks) + lastday) > 7 )
1283                     {
1284                         *week += 1;
1285                     }
1286                 }
1287                 else
1288                 {
1289                     *week = lastweek;
1290                 }
1291             }
1292         }
1293     }
1294     else
1295     {
1296         *day = -1;
1297         *week = -1;
1298         retval = FALSE;
1299     }
1300
1301 #if DEBUG_PAINT
1302     wxLogDebug("--- GetDateCoord: (%s) = (%i, %i) ---", date.Format("%d %m %Y"), *day, *week);
1303 #endif
1304
1305     return retval;
1306 }
1307
1308 // ----------------------------------------------------------------------------
1309 // mouse handling
1310 // ----------------------------------------------------------------------------
1311
1312 void wxCalendarCtrl::OnDClick(wxMouseEvent& event)
1313 {
1314     if ( HitTest(event.GetPosition()) != wxCAL_HITTEST_DAY )
1315     {
1316         event.Skip();
1317     }
1318     else
1319     {
1320         GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED);
1321     }
1322 }
1323
1324 void wxCalendarCtrl::OnClick(wxMouseEvent& event)
1325 {
1326     wxDateTime date;
1327     wxDateTime::WeekDay wday;
1328     switch ( HitTest(event.GetPosition(), &date, &wday) )
1329     {
1330         case wxCAL_HITTEST_DAY:
1331             if ( IsDateInRange(date) )
1332             {
1333                 ChangeDay(date);
1334
1335                 GenerateEvents(wxEVT_CALENDAR_DAY_CHANGED,
1336                                wxEVT_CALENDAR_SEL_CHANGED);
1337             }
1338             break;
1339
1340         case wxCAL_HITTEST_HEADER:
1341             {
1342                 wxCalendarEvent event(this, wxEVT_CALENDAR_WEEKDAY_CLICKED);
1343                 event.m_wday = wday;
1344                 (void)GetEventHandler()->ProcessEvent(event);
1345             }
1346             break;
1347
1348         case wxCAL_HITTEST_DECMONTH:
1349         case wxCAL_HITTEST_INCMONTH:
1350         case wxCAL_HITTEST_SURROUNDING_WEEK:
1351             SetDateAndNotify(date); // we probably only want to refresh the control. No notification.. (maybe as an option?)
1352             break;
1353
1354         default:
1355             wxFAIL_MSG(_T("unknown hittest code"));
1356             // fall through
1357
1358         case wxCAL_HITTEST_NOWHERE:
1359             event.Skip();
1360             break;
1361     }
1362 }
1363
1364 wxCalendarHitTestResult wxCalendarCtrl::HitTest(const wxPoint& pos,
1365                                                 wxDateTime *date,
1366                                                 wxDateTime::WeekDay *wd)
1367 {
1368     RecalcGeometry();
1369
1370     wxCoord y = pos.y;
1371
1372 ///////////////////////////////////////////////////////////////////////////////////////////////////////
1373     if ( (GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
1374     {
1375         // Header: month
1376
1377         // we need to find out if the hit is on left arrow, on month or on right arrow
1378         // left arrow?
1379         if ( wxRegion(m_leftArrowRect).Contains(pos) == wxInRegion )
1380         {
1381             if ( date )
1382             {
1383                 if ( IsDateInRange(m_date - wxDateSpan::Month()) )
1384                 {
1385                     *date = m_date - wxDateSpan::Month();
1386                 }
1387                 else
1388                 {
1389                     *date = GetLowerDateLimit();
1390                 }
1391             }
1392
1393             return wxCAL_HITTEST_DECMONTH;
1394         }
1395
1396         if ( wxRegion(m_rightArrowRect).Contains(pos) == wxInRegion )
1397         {
1398             if ( date )
1399             {
1400                 if ( IsDateInRange(m_date + wxDateSpan::Month()) )
1401                 {
1402                     *date = m_date + wxDateSpan::Month();
1403                 }
1404                 else
1405                 {
1406                     *date = GetUpperDateLimit();
1407                 }
1408             }
1409
1410             return wxCAL_HITTEST_INCMONTH;
1411         }
1412
1413     }
1414
1415 ///////////////////////////////////////////////////////////////////////////////////////////////////////
1416     // Header: Days
1417     int wday = pos.x / m_widthCol;
1418 //    if ( y < m_heightRow )
1419     if ( y < (m_heightRow + m_rowOffset) )
1420     {
1421         if ( y > m_rowOffset )
1422         {
1423             if ( wd )
1424             {
1425                 if ( GetWindowStyle() & wxCAL_MONDAY_FIRST )
1426                 {
1427                     wday = wday == 6 ? 0 : wday + 1;
1428                 }
1429
1430                 *wd = (wxDateTime::WeekDay)wday;
1431             }
1432
1433             return wxCAL_HITTEST_HEADER;
1434         }
1435         else
1436         {
1437             return wxCAL_HITTEST_NOWHERE;
1438         }
1439     }
1440
1441 //    int week = (y - m_heightRow) / m_heightRow;
1442     int week = (y - (m_heightRow + m_rowOffset)) / m_heightRow;
1443     if ( week >= 6 || wday >= 7 )
1444     {
1445         return wxCAL_HITTEST_NOWHERE;
1446     }
1447
1448     wxDateTime dt = GetStartDate() + wxDateSpan::Days(7*week + wday);
1449
1450     if ( IsDateShown(dt) )
1451     {
1452         if ( date )
1453             *date = dt;
1454
1455         if ( dt.GetMonth() == m_date.GetMonth() )
1456         {
1457
1458             return wxCAL_HITTEST_DAY;
1459         }
1460         else
1461         {
1462             return wxCAL_HITTEST_SURROUNDING_WEEK;
1463         }
1464     }
1465     else
1466     {
1467         return wxCAL_HITTEST_NOWHERE;
1468     }
1469 }
1470
1471 // ----------------------------------------------------------------------------
1472 // subcontrols events handling
1473 // ----------------------------------------------------------------------------
1474
1475 void wxCalendarCtrl::OnMonthChange(wxCommandEvent& event)
1476 {
1477     wxDateTime::Tm tm = m_date.GetTm();
1478
1479     wxDateTime::Month mon = (wxDateTime::Month)event.GetInt();
1480     if ( tm.mday > wxDateTime::GetNumberOfDays(mon, tm.year) )
1481     {
1482         tm.mday = wxDateTime::GetNumberOfDays(mon, tm.year);
1483     }
1484
1485     wxDateTime target = wxDateTime(tm.mday, mon, tm.year);
1486
1487     ChangeMonth(&target);
1488     SetDateAndNotify(target);
1489 }
1490
1491 void wxCalendarCtrl::OnYearChange(wxSpinEvent& event)
1492 {
1493     wxDateTime::Tm tm = m_date.GetTm();
1494
1495     int year = (int)event.GetInt();
1496     if ( tm.mday > wxDateTime::GetNumberOfDays(tm.mon, year) )
1497     {
1498         tm.mday = wxDateTime::GetNumberOfDays(tm.mon, year);
1499     }
1500
1501     wxDateTime target = wxDateTime(tm.mday, tm.mon, year);
1502
1503     if ( ChangeYear(&target) )
1504     {
1505         SetDateAndNotify(target);
1506     }
1507     else
1508     {
1509         // In this case we don't want to change the date. That would put us
1510         // inside the same year but a strange number of months forward/back..
1511         m_spinYear->SetValue(target.GetYear());
1512     }
1513
1514 }
1515
1516 // ----------------------------------------------------------------------------
1517 // keyboard interface
1518 // ----------------------------------------------------------------------------
1519
1520 void wxCalendarCtrl::OnChar(wxKeyEvent& event)
1521 {
1522     wxDateTime target;
1523     switch ( event.KeyCode() )
1524     {
1525         case _T('+'):
1526         case WXK_ADD:
1527             target = m_date + wxDateSpan::Year();
1528             if ( ChangeYear(&target) )
1529             {
1530                 SetDateAndNotify(target);
1531             }
1532             break;
1533
1534         case _T('-'):
1535         case WXK_SUBTRACT:
1536             target = m_date - wxDateSpan::Year();
1537             if ( ChangeYear(&target) )
1538             {
1539                 SetDateAndNotify(target);
1540             }
1541             break;
1542
1543         case WXK_PRIOR:
1544             target = m_date - wxDateSpan::Month();
1545             ChangeMonth(&target);
1546             SetDateAndNotify(target); // always
1547             break;
1548
1549         case WXK_NEXT:
1550             target = m_date + wxDateSpan::Month();
1551             ChangeMonth(&target);
1552             SetDateAndNotify(target); // always
1553             break;
1554
1555         case WXK_RIGHT:
1556             if ( event.ControlDown() )
1557             {
1558                 target = wxDateTime(m_date).SetToNextWeekDay(
1559                                  GetWindowStyle() & wxCAL_MONDAY_FIRST
1560                                  ? wxDateTime::Sun : wxDateTime::Sat);
1561                 if ( !IsDateInRange(target) )
1562                 {
1563                     target = GetUpperDateLimit();
1564                 }
1565                 SetDateAndNotify(target);
1566             }
1567             else
1568                 SetDateAndNotify(m_date + wxDateSpan::Day());
1569             break;
1570
1571         case WXK_LEFT:
1572             if ( event.ControlDown() )
1573             {
1574                 target = wxDateTime(m_date).SetToPrevWeekDay(
1575                                  GetWindowStyle() & wxCAL_MONDAY_FIRST
1576                                  ? wxDateTime::Mon : wxDateTime::Sun);
1577                 if ( !IsDateInRange(target) )
1578                 {
1579                     target = GetLowerDateLimit();
1580                 }
1581                 SetDateAndNotify(target);
1582             }
1583             else
1584                 SetDateAndNotify(m_date - wxDateSpan::Day());
1585             break;
1586
1587         case WXK_UP:
1588             SetDateAndNotify(m_date - wxDateSpan::Week());
1589             break;
1590
1591         case WXK_DOWN:
1592             SetDateAndNotify(m_date + wxDateSpan::Week());
1593             break;
1594
1595         case WXK_HOME:
1596             if ( event.ControlDown() )
1597                 SetDateAndNotify(wxDateTime::Today());
1598             else
1599                 SetDateAndNotify(wxDateTime(1, m_date.GetMonth(), m_date.GetYear()));
1600             break;
1601
1602         case WXK_END:
1603             SetDateAndNotify(wxDateTime(m_date).SetToLastMonthDay());
1604             break;
1605
1606         case WXK_RETURN:
1607             GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED);
1608             break;
1609
1610         default:
1611             event.Skip();
1612     }
1613 }
1614
1615 // ----------------------------------------------------------------------------
1616 // holidays handling
1617 // ----------------------------------------------------------------------------
1618
1619 void wxCalendarCtrl::EnableHolidayDisplay(bool display)
1620 {
1621     long style = GetWindowStyle();
1622     if ( display )
1623         style |= wxCAL_SHOW_HOLIDAYS;
1624     else
1625         style &= ~wxCAL_SHOW_HOLIDAYS;
1626
1627     SetWindowStyle(style);
1628
1629     if ( display )
1630         SetHolidayAttrs();
1631     else
1632         ResetHolidayAttrs();
1633
1634     Refresh();
1635 }
1636
1637 void wxCalendarCtrl::SetHolidayAttrs()
1638 {
1639     if ( GetWindowStyle() & wxCAL_SHOW_HOLIDAYS )
1640     {
1641         ResetHolidayAttrs();
1642
1643         wxDateTime::Tm tm = m_date.GetTm();
1644         wxDateTime dtStart(1, tm.mon, tm.year),
1645                    dtEnd = dtStart.GetLastMonthDay();
1646
1647         wxDateTimeArray hol;
1648         wxDateTimeHolidayAuthority::GetHolidaysInRange(dtStart, dtEnd, hol);
1649
1650         size_t count = hol.GetCount();
1651         for ( size_t n = 0; n < count; n++ )
1652         {
1653             SetHoliday(hol[n].GetDay());
1654         }
1655     }
1656 }
1657
1658 void wxCalendarCtrl::SetHoliday(size_t day)
1659 {
1660     wxCHECK_RET( day > 0 && day < 32, _T("invalid day in SetHoliday") );
1661
1662     wxCalendarDateAttr *attr = GetAttr(day);
1663     if ( !attr )
1664     {
1665         attr = new wxCalendarDateAttr;
1666     }
1667
1668     attr->SetHoliday(TRUE);
1669
1670     // can't use SetAttr() because it would delete this pointer
1671     m_attrs[day - 1] = attr;
1672 }
1673
1674 void wxCalendarCtrl::ResetHolidayAttrs()
1675 {
1676     for ( size_t day = 0; day < 31; day++ )
1677     {
1678         if ( m_attrs[day] )
1679         {
1680             m_attrs[day]->SetHoliday(FALSE);
1681         }
1682     }
1683 }
1684
1685 // ----------------------------------------------------------------------------
1686 // wxCalendarEvent
1687 // ----------------------------------------------------------------------------
1688
1689 void wxCalendarEvent::Init()
1690 {
1691     m_wday = wxDateTime::Inv_WeekDay;
1692 }
1693
1694 wxCalendarEvent::wxCalendarEvent(wxCalendarCtrl *cal, wxEventType type)
1695                : wxCommandEvent(type, cal->GetId())
1696 {
1697     m_date = cal->GetDate();
1698     SetEventObject(cal);
1699 }
1700
1701 #endif // wxUSE_CALENDARCTRL
1702