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 #endif //WX_PRECOMP
  36
  37 #include "wx/calctrl.h"
  38
  39 #define DEBUG_PAINT 0
  40
  41 // ----------------------------------------------------------------------------
  42 // private classes
  43 // ----------------------------------------------------------------------------
  44
  45 class wxMonthComboBox : public wxComboBox
  46 {
  47 public:
  48     wxMonthComboBox(wxCalendarCtrl *cal);
  49
  50     void OnMonthChange(wxCommandEvent& event) { m_cal->OnMonthChange(event); }
  51
  52 private:
  53     wxCalendarCtrl *m_cal;
  54
  55     DECLARE_EVENT_TABLE()
  56 };
  57
  58 class wxYearSpinCtrl : public wxSpinCtrl
  59 {
  60 public:
  61     wxYearSpinCtrl(wxCalendarCtrl *cal);
  62
  63     void OnYearChange(wxSpinEvent& event) { m_cal->OnYearChange(event); }
  64
  65 private:
  66     wxCalendarCtrl *m_cal;
  67
  68     DECLARE_EVENT_TABLE()
  69 };
  70
  71 // ----------------------------------------------------------------------------
  72 // wxWin macros
  73 // ----------------------------------------------------------------------------
  74
  75 BEGIN_EVENT_TABLE(wxCalendarCtrl, wxControl)
  76     EVT_PAINT(wxCalendarCtrl::OnPaint)
  77
  78     EVT_CHAR(wxCalendarCtrl::OnChar)
  79
  80     EVT_LEFT_DOWN(wxCalendarCtrl::OnClick)
  81     EVT_LEFT_DCLICK(wxCalendarCtrl::OnDClick)
  82 END_EVENT_TABLE()
  83
  84 BEGIN_EVENT_TABLE(wxMonthComboBox, wxComboBox)
  85     EVT_COMBOBOX(-1, wxMonthComboBox::OnMonthChange)
  86 END_EVENT_TABLE()
  87
  88 BEGIN_EVENT_TABLE(wxYearSpinCtrl, wxSpinCtrl)
  89     EVT_SPINCTRL(-1, wxYearSpinCtrl::OnYearChange)
  90 END_EVENT_TABLE()
  91
  92 IMPLEMENT_DYNAMIC_CLASS(wxCalendarCtrl, wxControl)
  93
  94 // ============================================================================
  95 // implementation
  96 // ============================================================================
  97
  98 // ----------------------------------------------------------------------------
  99 // wxMonthComboBox and wxYearSpinCtrl
 100 // ----------------------------------------------------------------------------
 101
 102 wxMonthComboBox::wxMonthComboBox(wxCalendarCtrl *cal)
 103                : wxComboBox(cal->GetParent(), -1,
 104                             wxEmptyString,
 105                             wxDefaultPosition,
 106                             wxDefaultSize,
 107                             0, NULL,
 108                             wxCB_READONLY)
 109 {
 110     m_cal = cal;
 111
 112     wxDateTime::Month m;
 113     for ( m = wxDateTime::Jan; m < wxDateTime::Inv_Month; wxNextMonth(m) )
 114     {
 115         Append(wxDateTime::GetMonthName(m));
 116     }
 117
 118     SetSelection(m_cal->GetDate().GetMonth());
 119 }
 120
 121 wxYearSpinCtrl::wxYearSpinCtrl(wxCalendarCtrl *cal)
 122               : wxSpinCtrl(cal->GetParent(), -1,
 123                            cal->GetDate().Format(_T("%Y")),
 124                            wxDefaultPosition,
 125                            wxDefaultSize,
 126                            wxSP_ARROW_KEYS,
 127                            -4300, 10000, cal->GetDate().GetYear())
 128 {
 129     m_cal = cal;
 130 }
 131
 132 // ----------------------------------------------------------------------------
 133 // wxCalendarCtrl
 134 // ----------------------------------------------------------------------------
 135
 136 void wxCalendarCtrl::Init()
 137 {
 138     m_comboMonth = NULL;
 139     m_spinYear = NULL;
 140
 141     m_widthCol =
 142     m_heightRow = 0;
 143
 144     wxDateTime::WeekDay wd;
 145     for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
 146     {
 147         m_weekdays[wd] = wxDateTime::GetWeekDayName(wd, wxDateTime::Name_Abbr);
 148     }
 149 }
 150
 151 bool wxCalendarCtrl::Create(wxWindow * WXUNUSED(parent),
 152                             wxWindowID WXUNUSED(id),
 153                             const wxDateTime& date,
 154                             const wxPoint& WXUNUSED(pos),
 155                             const wxSize& size,
 156                             long style,
 157                             const wxString& WXUNUSED(name))
 158 {
 159     SetWindowStyle(style | (wxRAISED_BORDER | wxWANTS_CHARS));
 160
 161     m_date = date.IsValid() ? date : wxDateTime::Today();
 162
 163     m_comboMonth = new wxMonthComboBox(this);
 164     m_spinYear = new wxYearSpinCtrl(this);
 165
 166     wxSize sizeReal;
 167     if ( size.x == -1 || size.y == -1 )
 168     {
 169         sizeReal = DoGetBestSize();
 170         if ( size.x != -1 )
 171             sizeReal.x = size.x;
 172         if ( size.y != -1 )
 173             sizeReal.y = size.y;
 174     }
 175     else
 176     {
 177         sizeReal = size;
 178     }
 179
 180     SetSize(sizeReal);
 181
 182     SetBackgroundColour(*wxWHITE);
 183     SetFont(*wxSWISS_FONT);
 184
 185     return TRUE;
 186 }
 187
 188 wxCalendarCtrl::~wxCalendarCtrl()
 189 {
 190 #if 0
 191     m_comboMonth->PopEventHandler();
 192     m_spinYear->PopEventHandler();
 193 #endif // 0
 194 }
 195
 196 // ----------------------------------------------------------------------------
 197 // forward wxWin functions to subcontrols
 198 // ----------------------------------------------------------------------------
 199
 200 bool wxCalendarCtrl::Show(bool show)
 201 {
 202     if ( !wxControl::Show(show) )
 203     {
 204         return FALSE;
 205     }
 206
 207     m_comboMonth->Show(show);
 208     m_spinYear->Show(show);
 209
 210     return TRUE;
 211 }
 212
 213 bool wxCalendarCtrl::Enable(bool enable)
 214 {
 215     if ( !wxControl::Enable(enable) )
 216     {
 217         return FALSE;
 218     }
 219
 220     m_comboMonth->Enable(enable);
 221     m_spinYear->Enable(enable);
 222
 223     return TRUE;
 224 }
 225
 226 // ----------------------------------------------------------------------------
 227 // changing date
 228 // ----------------------------------------------------------------------------
 229
 230 void wxCalendarCtrl::SetDate(const wxDateTime& date)
 231 {
 232     if ( m_date.GetMonth() == date.GetMonth() &&
 233          m_date.GetYear() == date.GetYear() )
 234     {
 235         // just change the day
 236         ChangeDay(date);
 237     }
 238     else
 239     {
 240         // change everything
 241         m_date = date;
 242
 243         // update the controls
 244         m_comboMonth->SetSelection(m_date.GetMonth());
 245         m_spinYear->SetValue(m_date.Format(_T("%Y")));
 246
 247         // update the calendar
 248         Refresh();
 249     }
 250 }
 251
 252 void wxCalendarCtrl::ChangeDay(const wxDateTime& date)
 253 {
 254     if ( m_date != date )
 255     {
 256         // we need to refresh the row containing the old date and the one
 257         // containing the new one
 258         wxDateTime dateOld = m_date;
 259         m_date = date;
 260
 261         RefreshDate(dateOld);
 262
 263         // if the date is in the same row, it was already drawn correctly
 264         if ( GetWeek(m_date) != GetWeek(dateOld) )
 265         {
 266             RefreshDate(m_date);
 267         }
 268     }
 269 }
 270
 271 void wxCalendarCtrl::SetDateAndNotify(const wxDateTime& date)
 272 {
 273     wxDateTime::Tm tm1 = m_date.GetTm(),
 274                    tm2 = date.GetTm();
 275
 276     wxEventType type;
 277     if ( tm1.year != tm2.year )
 278         type = wxEVT_CALENDAR_YEAR_CHANGED;
 279     else if ( tm1.mon != tm2.mon )
 280         type = wxEVT_CALENDAR_MONTH_CHANGED;
 281     else if ( tm1.mday != tm2.mday )
 282         type = wxEVT_CALENDAR_DAY_CHANGED;
 283     else
 284         return;
 285
 286     SetDate(date);
 287
 288     GenerateEvent(type);
 289 }
 290
 291 // ----------------------------------------------------------------------------
 292 // date helpers
 293 // ----------------------------------------------------------------------------
 294
 295 wxDateTime wxCalendarCtrl::GetStartDate() const
 296 {
 297     wxDateTime::Tm tm = m_date.GetTm();
 298
 299     wxDateTime date = wxDateTime(1, tm.mon, tm.year);
 300
 301     // rewind back
 302     date.SetToPrevWeekDay(GetWindowStyle() & wxCAL_MONDAY_FIRST
 303                           ? wxDateTime::Mon : wxDateTime::Sun);
 304
 305     // be sure to do it or it might gain 1 hour if DST changed in between
 306     date.ResetTime();
 307
 308     return date;
 309 }
 310
 311 bool wxCalendarCtrl::IsDateShown(const wxDateTime& date) const
 312 {
 313     return date.GetMonth() == m_date.GetMonth();
 314 }
 315
 316 size_t wxCalendarCtrl::GetWeek(const wxDateTime& date) const
 317 {
 318     return date.GetWeekOfMonth(GetWindowStyle() & wxCAL_MONDAY_FIRST
 319                                ? wxDateTime::Monday_First
 320                                : wxDateTime::Sunday_First);
 321 }
 322
 323 // ----------------------------------------------------------------------------
 324 // size management
 325 // ----------------------------------------------------------------------------
 326
 327 // this is a composite control and it must arrange its parts each time its
 328 // size or position changes: the combobox and spinctrl are along the top of
 329 // the available area and the calendar takes up therest of the space
 330
 331 // the constants used for the layout
 332 #define VERT_MARGIN     5           // distance between combo and calendar
 333 #define HORZ_MARGIN    15           //                            spin
 334
 335 wxSize wxCalendarCtrl::DoGetBestSize() const
 336 {
 337     // calc the size of the calendar
 338     ((wxCalendarCtrl *)this)->RecalcGeometry(); // const_cast
 339
 340     wxCoord width = 7*m_widthCol,
 341             height = 7*m_heightRow;
 342
 343     wxSize sizeCombo = m_comboMonth->GetBestSize(),
 344            sizeSpin = m_spinYear->GetBestSize();
 345
 346     height += VERT_MARGIN + wxMax(sizeCombo.y, sizeSpin.y);
 347
 348     return wxSize(width, height);
 349 }
 350
 351 void wxCalendarCtrl::DoSetSize(int x, int y,
 352                                int width, int height,
 353                                int sizeFlags)
 354 {
 355     wxControl::DoSetSize(x, y, width, height, sizeFlags);
 356 }
 357
 358 void wxCalendarCtrl::DoMoveWindow(int x, int y, int width, int height)
 359 {
 360     wxSize sizeCombo = m_comboMonth->GetSize();
 361     m_comboMonth->Move(x, y);
 362
 363     int xDiff = sizeCombo.x + HORZ_MARGIN;
 364     m_spinYear->SetSize(x + xDiff, y, width - xDiff, sizeCombo.y);
 365
 366     wxSize sizeSpin = m_spinYear->GetSize();
 367     int yDiff = wxMax(sizeSpin.y, sizeCombo.y) + VERT_MARGIN;
 368
 369     wxControl::DoMoveWindow(x, y + yDiff, width, height - yDiff);
 370 }
 371
 372 void wxCalendarCtrl::DoGetPosition(int *x, int *y) const
 373 {
 374     wxControl::DoGetPosition(x, y);
 375
 376     // our real top corner is not in this position
 377     if ( y )
 378     {
 379         *y -= m_comboMonth->GetSize().y + VERT_MARGIN;
 380     }
 381 }
 382
 383 void wxCalendarCtrl::DoGetSize(int *width, int *height) const
 384 {
 385     wxControl::DoGetSize(width, height);
 386
 387     // our real height is bigger
 388     if ( height )
 389     {
 390         *height += m_comboMonth->GetSize().y + VERT_MARGIN;
 391     }
 392 }
 393
 394 void wxCalendarCtrl::RecalcGeometry()
 395 {
 396     if ( m_widthCol != 0 )
 397         return;
 398
 399     wxClientDC dc(this);
 400
 401     dc.SetFont(m_font);
 402
 403     // determine the column width (we assume that the weekday names are always
 404     // wider (in any language) than the numbers)
 405     m_widthCol = 0;
 406     wxDateTime::WeekDay wd;
 407     for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
 408     {
 409         wxCoord width;
 410         dc.GetTextExtent(m_weekdays[wd], &width, &m_heightRow);
 411         if ( width > m_widthCol )
 412         {
 413             m_widthCol = width;
 414         }
 415     }
 416
 417     // leave some margins
 418     m_widthCol += 2;
 419     m_heightRow += 2;
 420 }
 421
 422 // ----------------------------------------------------------------------------
 423 // drawing
 424 // ----------------------------------------------------------------------------
 425
 426 void wxCalendarCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
 427 {
 428     wxPaintDC dc(this);
 429
 430     dc.SetFont(m_font);
 431
 432     RecalcGeometry();
 433
 434 #if DEBUG_PAINT
 435     printf("--- starting to paint, selection: %s, week %u\n",
 436            m_date.Format("%a %d-%m-%Y %H:%M:%S").c_str(),
 437            GetWeek(m_date));
 438 #endif
 439
 440     // first draw the week days
 441     if ( IsExposed(0, 0, 7*m_widthCol, m_heightRow) )
 442     {
 443 #if DEBUG_PAINT
 444         puts("painting the header");
 445 #endif
 446
 447         dc.SetTextForeground(*wxBLUE);
 448         dc.SetBrush(wxBrush(*wxLIGHT_GREY, wxSOLID));
 449         dc.SetBackgroundMode(wxTRANSPARENT);
 450         dc.SetPen(*wxLIGHT_GREY_PEN);
 451         dc.DrawRectangle(0, 0, 7*m_widthCol, m_heightRow);
 452
 453         bool startOnMonday = (GetWindowStyle() & wxCAL_MONDAY_FIRST) != 0;
 454         for ( size_t wd = 0; wd < 7; wd++ )
 455         {
 456             size_t n;
 457             if ( startOnMonday )
 458                 n = wd == 6 ? 0 : wd + 1;
 459             else
 460                 n = wd;
 461
 462             dc.DrawText(m_weekdays[n], wd*m_widthCol + 1, 0);
 463         }
 464     }
 465
 466     // then the calendar itself
 467     dc.SetTextForeground(*wxBLACK);
 468     //dc.SetFont(*wxNORMAL_FONT);
 469
 470     wxCoord y = m_heightRow;
 471
 472     wxDateTime date = GetStartDate();
 473 #if DEBUG_PAINT
 474     printf("starting calendar from %s\n",
 475             date.Format("%a %d-%m-%Y %H:%M:%S").c_str());
 476 #endif
 477
 478     dc.SetBackgroundMode(wxSOLID);
 479     for ( size_t nWeek = 1; nWeek <= 6; nWeek++, y += m_heightRow )
 480     {
 481         // if the update region doesn't intersect this row, don't paint it
 482         if ( !IsExposed(0, y, 7*m_widthCol, m_heightRow - 1) )
 483         {
 484             date += wxDateSpan::Week();
 485
 486             continue;
 487         }
 488
 489 #if DEBUG_PAINT
 490         printf("painting week %d at y = %d\n", nWeek, y);
 491 #endif
 492
 493         for ( size_t wd = 0; wd < 7; wd++ )
 494         {
 495             if ( IsDateShown(date) )
 496             {
 497                 // don't use wxDate::Format() which prepends 0s
 498                 wxString day = wxString::Format(_T("%u"), date.GetDay());
 499                 wxCoord width;
 500                 dc.GetTextExtent(day, &width, (wxCoord *)NULL);
 501
 502                 bool isSel = m_date == date;
 503                 if ( isSel )
 504                 {
 505                     dc.SetTextForeground(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_HIGHLIGHTTEXT));
 506                     dc.SetTextBackground(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_HIGHLIGHT));
 507                 }
 508
 509                 dc.DrawText(day, wd*m_widthCol + (m_widthCol - width) / 2, y);
 510
 511                 if ( isSel )
 512                 {
 513                     dc.SetTextForeground(m_foregroundColour);
 514                     dc.SetTextBackground(m_backgroundColour);
 515                 }
 516             }
 517             //else: just don't draw it
 518
 519             date += wxDateSpan::Day();
 520         }
 521     }
 522 #if DEBUG_PAINT
 523     puts("+++ finished painting");
 524 #endif
 525 }
 526
 527 void wxCalendarCtrl::RefreshDate(const wxDateTime& date)
 528 {
 529     RecalcGeometry();
 530
 531     wxRect rect;
 532
 533     // always refresh the whole row at once because our OnPaint() will draw
 534     // the whole row anyhow - and this allows the small optimisation in
 535     // OnClick() below to work
 536     rect.x = 0;
 537     rect.y = m_heightRow * GetWeek(date);
 538     rect.width = 7*m_widthCol;
 539     rect.height = m_heightRow;
 540
 541 #if DEBUG_PAINT
 542     printf("*** refreshing week %d at (%d, %d)-(%d, %d)\n",
 543            GetWeek(date),
 544            rect.x, rect.y,
 545            rect.x + rect.width, rect.y + rect.height);
 546 #endif
 547
 548     Refresh(TRUE, &rect);
 549 }
 550
 551 // ----------------------------------------------------------------------------
 552 // mouse handling
 553 // ----------------------------------------------------------------------------
 554
 555 void wxCalendarCtrl::OnDClick(wxMouseEvent& event)
 556 {
 557     if ( HitTest(event.GetPosition()) != wxCAL_HITTEST_DAY )
 558     {
 559         event.Skip();
 560     }
 561     else
 562     {
 563         GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED, FALSE);
 564     }
 565 }
 566
 567 void wxCalendarCtrl::OnClick(wxMouseEvent& event)
 568 {
 569     wxDateTime date;
 570     wxDateTime::WeekDay wday;
 571     switch ( HitTest(event.GetPosition(), &date, &wday) )
 572     {
 573         case wxCAL_HITTEST_DAY:
 574             ChangeDay(date);
 575
 576             GenerateEvent(wxEVT_CALENDAR_DAY_CHANGED);
 577             break;
 578
 579         case wxCAL_HITTEST_HEADER:
 580             {
 581                 wxCalendarEvent event(this, wxEVT_CALENDAR_WEEKDAY_CLICKED);
 582                 event.m_wday = wday;
 583                 (void)GetEventHandler()->ProcessEvent(event);
 584             }
 585             break;
 586
 587         default:
 588             wxFAIL_MSG(_T("unknown hittest code"));
 589             // fall through
 590
 591         case wxCAL_HITTEST_NOWHERE:
 592             event.Skip();
 593             break;
 594     }
 595 }
 596
 597 wxCalendarHitTestResult wxCalendarCtrl::HitTest(const wxPoint& pos,
 598                                                 wxDateTime *date,
 599                                                 wxDateTime::WeekDay *wd)
 600 {
 601     RecalcGeometry();
 602
 603     int wday = pos.x / m_widthCol;
 604
 605     wxCoord y = pos.y;
 606     if ( y < m_heightRow )
 607     {
 608         if ( wd )
 609         {
 610             if ( GetWindowStyle() & wxCAL_MONDAY_FIRST )
 611             {
 612                 wday = wday == 6 ? 0 : wday + 1;
 613             }
 614
 615             *wd = (wxDateTime::WeekDay)wday;
 616         }
 617
 618         return wxCAL_HITTEST_HEADER;
 619     }
 620
 621     int week = (y - m_heightRow) / m_heightRow;
 622     if ( week >= 6 || wday >= 7 )
 623     {
 624         return wxCAL_HITTEST_NOWHERE;
 625     }
 626
 627     wxDateTime dt = GetStartDate() + wxDateSpan::Days(7*week + wday);
 628
 629     if ( IsDateShown(dt) )
 630     {
 631         if ( date )
 632             *date = dt;
 633
 634         return wxCAL_HITTEST_DAY;
 635     }
 636     else
 637     {
 638         return wxCAL_HITTEST_NOWHERE;
 639     }
 640 }
 641
 642 // ----------------------------------------------------------------------------
 643 // subcontrols events handling
 644 // ----------------------------------------------------------------------------
 645
 646 void wxCalendarCtrl::OnMonthChange(wxCommandEvent& event)
 647 {
 648     wxDateTime::Tm tm = m_date.GetTm();
 649
 650     wxDateTime::Month mon = (wxDateTime::Month)event.GetInt();
 651     if ( tm.mday > wxDateTime::GetNumberOfDays(mon, tm.year) )
 652     {
 653         tm.mday = wxDateTime::GetNumberOfDays(mon, tm.year);
 654     }
 655
 656     SetDate(wxDateTime(tm.mday, mon, tm.year));
 657
 658     GenerateEvent(wxEVT_CALENDAR_MONTH_CHANGED);
 659 }
 660
 661 void wxCalendarCtrl::OnYearChange(wxSpinEvent& event)
 662 {
 663     wxDateTime::Tm tm = m_date.GetTm();
 664
 665     int year = (int)event.GetInt();
 666     if ( tm.mday > wxDateTime::GetNumberOfDays(tm.mon, year) )
 667     {
 668         tm.mday = wxDateTime::GetNumberOfDays(tm.mon, year);
 669     }
 670
 671     SetDate(wxDateTime(tm.mday, tm.mon, year));
 672
 673     GenerateEvent(wxEVT_CALENDAR_YEAR_CHANGED);
 674 }
 675
 676 // ----------------------------------------------------------------------------
 677 // keyboard interface
 678 // ----------------------------------------------------------------------------
 679
 680 void wxCalendarCtrl::OnChar(wxKeyEvent& event)
 681 {
 682     switch ( event.KeyCode() )
 683     {
 684         case _T('+'):
 685         case WXK_ADD:
 686             SetDateAndNotify(m_date + wxDateSpan::Year());
 687             break;
 688
 689         case _T('-'):
 690         case WXK_SUBTRACT:
 691             SetDateAndNotify(m_date - wxDateSpan::Year());
 692             break;
 693
 694         case WXK_PRIOR:
 695             SetDateAndNotify(m_date - wxDateSpan::Month());
 696             break;
 697
 698         case WXK_NEXT:
 699             SetDateAndNotify(m_date + wxDateSpan::Month());
 700             break;
 701
 702         case WXK_RIGHT:
 703             if ( event.ControlDown() )
 704                 SetDateAndNotify(wxDateTime(m_date).SetToNextWeekDay(
 705                                  GetWindowStyle() & wxCAL_MONDAY_FIRST
 706                                  ? wxDateTime::Sun : wxDateTime::Sat));
 707             else
 708                 SetDateAndNotify(m_date + wxDateSpan::Day());
 709             break;
 710
 711         case WXK_LEFT:
 712             if ( event.ControlDown() )
 713                 SetDateAndNotify(wxDateTime(m_date).SetToPrevWeekDay(
 714                                  GetWindowStyle() & wxCAL_MONDAY_FIRST
 715                                  ? wxDateTime::Mon : wxDateTime::Sun));
 716             else
 717                 SetDateAndNotify(m_date - wxDateSpan::Day());
 718             break;
 719
 720         case WXK_UP:
 721             SetDateAndNotify(m_date - wxDateSpan::Week());
 722             break;
 723
 724         case WXK_DOWN:
 725             SetDateAndNotify(m_date + wxDateSpan::Week());
 726             break;
 727
 728         case WXK_HOME:
 729             if ( event.ControlDown() )
 730                 SetDateAndNotify(wxDateTime::Today());
 731             else
 732                 SetDateAndNotify(wxDateTime(1, m_date.GetMonth(), m_date.GetYear()));
 733             break;
 734
 735         case WXK_END:
 736             SetDateAndNotify(wxDateTime(m_date).SetToLastMonthDay());
 737             break;
 738
 739         default:
 740             event.Skip();
 741     }
 742 }
 743
 744 // ----------------------------------------------------------------------------
 745 // wxCalendarEvent
 746 // ----------------------------------------------------------------------------
 747
 748 void wxCalendarCtrl::GenerateEvent(wxEventType type, bool selChanged)
 749 {
 750     // we're called for a change in some particular date field but we always
 751     // also generate a generic "changed" event
 752     wxCalendarEvent event(this, type);
 753     (void)GetEventHandler()->ProcessEvent(event);
 754
 755     if ( selChanged )
 756     {
 757         wxCalendarEvent event2(this, wxEVT_CALENDAR_SEL_CHANGED);
 758
 759         (void)GetEventHandler()->ProcessEvent(event2);
 760     }
 761 }
 762
 763 void wxCalendarEvent::Init()
 764 {
 765     m_wday = wxDateTime::Inv_WeekDay;
 766 }
 767
 768 wxCalendarEvent::wxCalendarEvent(wxCalendarCtrl *cal, wxEventType type)
 769                : wxCommandEvent(type, cal->GetId())
 770 {
 771     m_date = cal->GetDate();
 772 }