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 #endif //WX_PRECOMP
  37
  38 #include "wx/calctrl.h"
  39
  40 #define DEBUG_PAINT 0
  41
  42 // ----------------------------------------------------------------------------
  43 // private classes
  44 // ----------------------------------------------------------------------------
  45
  46 class wxMonthComboBox : public wxComboBox
  47 {
  48 public:
  49     wxMonthComboBox(wxCalendarCtrl *cal);
  50
  51     void OnMonthChange(wxCommandEvent& event) { m_cal->OnMonthChange(event); }
  52
  53 private:
  54     wxCalendarCtrl *m_cal;
  55
  56     DECLARE_EVENT_TABLE()
  57 };
  58
  59 class wxYearSpinCtrl : public wxSpinCtrl
  60 {
  61 public:
  62     wxYearSpinCtrl(wxCalendarCtrl *cal);
  63
  64     void OnYearChange(wxSpinEvent& event) { m_cal->OnYearChange(event); }
  65
  66 private:
  67     wxCalendarCtrl *m_cal;
  68
  69     DECLARE_EVENT_TABLE()
  70 };
  71
  72 // ----------------------------------------------------------------------------
  73 // wxWin macros
  74 // ----------------------------------------------------------------------------
  75
  76 BEGIN_EVENT_TABLE(wxCalendarCtrl, wxControl)
  77     EVT_PAINT(wxCalendarCtrl::OnPaint)
  78
  79     EVT_CHAR(wxCalendarCtrl::OnChar)
  80
  81     EVT_LEFT_DOWN(wxCalendarCtrl::OnClick)
  82     EVT_LEFT_DCLICK(wxCalendarCtrl::OnDClick)
  83
  84     EVT_CALENDAR_MONTH(-1, wxCalendarCtrl::OnCalMonthChange)
  85     EVT_CALENDAR_YEAR(-1, wxCalendarCtrl::OnCalMonthChange)
  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
  98 // ============================================================================
  99 // implementation
 100 // ============================================================================
 101
 102 // ----------------------------------------------------------------------------
 103 // wxMonthComboBox and wxYearSpinCtrl
 104 // ----------------------------------------------------------------------------
 105
 106 wxMonthComboBox::wxMonthComboBox(wxCalendarCtrl *cal)
 107                : wxComboBox(cal->GetParent(), -1,
 108                             wxEmptyString,
 109                             wxDefaultPosition,
 110                             wxDefaultSize,
 111                             0, NULL,
 112                             wxCB_READONLY)
 113 {
 114     m_cal = cal;
 115
 116     wxDateTime::Month m;
 117     for ( m = wxDateTime::Jan; m < wxDateTime::Inv_Month; wxNextMonth(m) )
 118     {
 119         Append(wxDateTime::GetMonthName(m));
 120     }
 121
 122     SetSelection(m_cal->GetDate().GetMonth());
 123 }
 124
 125 wxYearSpinCtrl::wxYearSpinCtrl(wxCalendarCtrl *cal)
 126               : wxSpinCtrl(cal->GetParent(), -1,
 127                            cal->GetDate().Format(_T("%Y")),
 128                            wxDefaultPosition,
 129                            wxDefaultSize,
 130                            wxSP_ARROW_KEYS,
 131                            -4300, 10000, cal->GetDate().GetYear())
 132 {
 133     m_cal = cal;
 134 }
 135
 136 // ----------------------------------------------------------------------------
 137 // wxCalendarCtrl
 138 // ----------------------------------------------------------------------------
 139
 140 void wxCalendarCtrl::Init()
 141 {
 142     m_comboMonth = NULL;
 143     m_spinYear = NULL;
 144
 145     m_widthCol =
 146     m_heightRow = 0;
 147
 148     wxDateTime::WeekDay wd;
 149     for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
 150     {
 151         m_weekdays[wd] = wxDateTime::GetWeekDayName(wd, wxDateTime::Name_Abbr);
 152     }
 153
 154     for ( size_t n = 0; n < WXSIZEOF(m_attrs); n++ )
 155     {
 156         m_attrs[n] = NULL;
 157     }
 158
 159     wxSystemSettings ss;
 160     m_colHighlightFg = ss.GetSystemColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
 161     m_colHighlightBg = ss.GetSystemColour(wxSYS_COLOUR_HIGHLIGHT);
 162
 163     m_colHolidayFg = *wxRED;
 164     // don't set m_colHolidayBg - by default, same as our bg colour
 165
 166     m_colHeaderFg = *wxBLUE;
 167     m_colHeaderBg = *wxLIGHT_GREY;
 168 }
 169
 170 bool wxCalendarCtrl::Create(wxWindow * WXUNUSED(parent),
 171                             wxWindowID WXUNUSED(id),
 172                             const wxDateTime& date,
 173                             const wxPoint& WXUNUSED(pos),
 174                             const wxSize& size,
 175                             long style,
 176                             const wxString& WXUNUSED(name))
 177 {
 178     SetWindowStyle(style | (wxRAISED_BORDER | wxWANTS_CHARS));
 179
 180     m_date = date.IsValid() ? date : wxDateTime::Today();
 181
 182     m_comboMonth = new wxMonthComboBox(this);
 183     m_spinYear = new wxYearSpinCtrl(this);
 184
 185     wxSize sizeReal;
 186     if ( size.x == -1 || size.y == -1 )
 187     {
 188         sizeReal = DoGetBestSize();
 189         if ( size.x != -1 )
 190             sizeReal.x = size.x;
 191         if ( size.y != -1 )
 192             sizeReal.y = size.y;
 193     }
 194     else
 195     {
 196         sizeReal = size;
 197     }
 198
 199     SetSize(sizeReal);
 200
 201     SetBackgroundColour(*wxWHITE);
 202     SetFont(*wxSWISS_FONT);
 203
 204     SetHolidayAttrs();
 205
 206     return TRUE;
 207 }
 208
 209 wxCalendarCtrl::~wxCalendarCtrl()
 210 {
 211     for ( size_t n = 0; n < WXSIZEOF(m_attrs); n++ )
 212     {
 213         delete m_attrs[n];
 214     }
 215 }
 216
 217 // ----------------------------------------------------------------------------
 218 // forward wxWin functions to subcontrols
 219 // ----------------------------------------------------------------------------
 220
 221 bool wxCalendarCtrl::Show(bool show)
 222 {
 223     if ( !wxControl::Show(show) )
 224     {
 225         return FALSE;
 226     }
 227
 228     m_comboMonth->Show(show);
 229     m_spinYear->Show(show);
 230
 231     return TRUE;
 232 }
 233
 234 bool wxCalendarCtrl::Enable(bool enable)
 235 {
 236     if ( !wxControl::Enable(enable) )
 237     {
 238         return FALSE;
 239     }
 240
 241     m_comboMonth->Enable(enable);
 242     m_spinYear->Enable(enable);
 243
 244     return TRUE;
 245 }
 246
 247 // ----------------------------------------------------------------------------
 248 // changing date
 249 // ----------------------------------------------------------------------------
 250
 251 void wxCalendarCtrl::SetDate(const wxDateTime& date)
 252 {
 253     if ( m_date.GetMonth() == date.GetMonth() &&
 254          m_date.GetYear() == date.GetYear() )
 255     {
 256         // just change the day
 257         ChangeDay(date);
 258     }
 259     else
 260     {
 261         // change everything
 262         m_date = date;
 263
 264         // update the controls
 265         m_comboMonth->SetSelection(m_date.GetMonth());
 266         m_spinYear->SetValue(m_date.Format(_T("%Y")));
 267
 268         // update the calendar
 269         Refresh();
 270     }
 271 }
 272
 273 void wxCalendarCtrl::ChangeDay(const wxDateTime& date)
 274 {
 275     if ( m_date != date )
 276     {
 277         // we need to refresh the row containing the old date and the one
 278         // containing the new one
 279         wxDateTime dateOld = m_date;
 280         m_date = date;
 281
 282         RefreshDate(dateOld);
 283
 284         // if the date is in the same row, it was already drawn correctly
 285         if ( GetWeek(m_date) != GetWeek(dateOld) )
 286         {
 287             RefreshDate(m_date);
 288         }
 289     }
 290 }
 291
 292 void wxCalendarCtrl::SetDateAndNotify(const wxDateTime& date)
 293 {
 294     wxDateTime::Tm tm1 = m_date.GetTm(),
 295                    tm2 = date.GetTm();
 296
 297     wxEventType type;
 298     if ( tm1.year != tm2.year )
 299         type = wxEVT_CALENDAR_YEAR_CHANGED;
 300     else if ( tm1.mon != tm2.mon )
 301         type = wxEVT_CALENDAR_MONTH_CHANGED;
 302     else if ( tm1.mday != tm2.mday )
 303         type = wxEVT_CALENDAR_DAY_CHANGED;
 304     else
 305         return;
 306
 307     SetDate(date);
 308
 309     GenerateEvents(type, wxEVT_CALENDAR_SEL_CHANGED);
 310 }
 311
 312 // ----------------------------------------------------------------------------
 313 // date helpers
 314 // ----------------------------------------------------------------------------
 315
 316 wxDateTime wxCalendarCtrl::GetStartDate() const
 317 {
 318     wxDateTime::Tm tm = m_date.GetTm();
 319
 320     wxDateTime date = wxDateTime(1, tm.mon, tm.year);
 321
 322     // rewind back
 323     date.SetToPrevWeekDay(GetWindowStyle() & wxCAL_MONDAY_FIRST
 324                           ? wxDateTime::Mon : wxDateTime::Sun);
 325
 326     return date;
 327 }
 328
 329 bool wxCalendarCtrl::IsDateShown(const wxDateTime& date) const
 330 {
 331     return date.GetMonth() == m_date.GetMonth();
 332 }
 333
 334 size_t wxCalendarCtrl::GetWeek(const wxDateTime& date) const
 335 {
 336     return date.GetWeekOfMonth(GetWindowStyle() & wxCAL_MONDAY_FIRST
 337                                ? wxDateTime::Monday_First
 338                                : wxDateTime::Sunday_First);
 339 }
 340
 341 // ----------------------------------------------------------------------------
 342 // size management
 343 // ----------------------------------------------------------------------------
 344
 345 // this is a composite control and it must arrange its parts each time its
 346 // size or position changes: the combobox and spinctrl are along the top of
 347 // the available area and the calendar takes up therest of the space
 348
 349 // the constants used for the layout
 350 #define VERT_MARGIN     5           // distance between combo and calendar
 351 #define HORZ_MARGIN    15           //                            spin
 352
 353 wxSize wxCalendarCtrl::DoGetBestSize() const
 354 {
 355     // calc the size of the calendar
 356     ((wxCalendarCtrl *)this)->RecalcGeometry(); // const_cast
 357
 358     wxCoord width = 7*m_widthCol,
 359             height = 7*m_heightRow;
 360
 361     wxSize sizeCombo = m_comboMonth->GetBestSize(),
 362            sizeSpin = m_spinYear->GetBestSize();
 363
 364     height += VERT_MARGIN + wxMax(sizeCombo.y, sizeSpin.y);
 365
 366     return wxSize(width, height);
 367 }
 368
 369 void wxCalendarCtrl::DoSetSize(int x, int y,
 370                                int width, int height,
 371                                int sizeFlags)
 372 {
 373     wxControl::DoSetSize(x, y, width, height, sizeFlags);
 374 }
 375
 376 void wxCalendarCtrl::DoMoveWindow(int x, int y, int width, int height)
 377 {
 378     wxSize sizeCombo = m_comboMonth->GetSize();
 379     m_comboMonth->Move(x, y);
 380
 381     int xDiff = sizeCombo.x + HORZ_MARGIN;
 382     m_spinYear->SetSize(x + xDiff, y, width - xDiff, sizeCombo.y);
 383
 384     wxSize sizeSpin = m_spinYear->GetSize();
 385     int yDiff = wxMax(sizeSpin.y, sizeCombo.y) + VERT_MARGIN;
 386
 387     wxControl::DoMoveWindow(x, y + yDiff, width, height - yDiff);
 388 }
 389
 390 void wxCalendarCtrl::DoGetPosition(int *x, int *y) const
 391 {
 392     wxControl::DoGetPosition(x, y);
 393
 394     // our real top corner is not in this position
 395     if ( y )
 396     {
 397         *y -= m_comboMonth->GetSize().y + VERT_MARGIN;
 398     }
 399 }
 400
 401 void wxCalendarCtrl::DoGetSize(int *width, int *height) const
 402 {
 403     wxControl::DoGetSize(width, height);
 404
 405     // our real height is bigger
 406     if ( height )
 407     {
 408         *height += m_comboMonth->GetSize().y + VERT_MARGIN;
 409     }
 410 }
 411
 412 void wxCalendarCtrl::RecalcGeometry()
 413 {
 414     if ( m_widthCol != 0 )
 415         return;
 416
 417     wxClientDC dc(this);
 418
 419     dc.SetFont(m_font);
 420
 421     // determine the column width (we assume that the weekday names are always
 422     // wider (in any language) than the numbers)
 423     m_widthCol = 0;
 424     wxDateTime::WeekDay wd;
 425     for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
 426     {
 427         wxCoord width;
 428         dc.GetTextExtent(m_weekdays[wd], &width, &m_heightRow);
 429         if ( width > m_widthCol )
 430         {
 431             m_widthCol = width;
 432         }
 433     }
 434
 435     // leave some margins
 436     m_widthCol += 2;
 437     m_heightRow += 2;
 438 }
 439
 440 // ----------------------------------------------------------------------------
 441 // drawing
 442 // ----------------------------------------------------------------------------
 443
 444 void wxCalendarCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
 445 {
 446     wxPaintDC dc(this);
 447
 448     dc.SetFont(m_font);
 449
 450     RecalcGeometry();
 451
 452 #if DEBUG_PAINT
 453     printf("--- starting to paint, selection: %s, week %u\n",
 454            m_date.Format("%a %d-%m-%Y %H:%M:%S").c_str(),
 455            GetWeek(m_date));
 456 #endif
 457
 458     // first draw the week days
 459     if ( IsExposed(0, 0, 7*m_widthCol, m_heightRow) )
 460     {
 461 #if DEBUG_PAINT
 462         puts("painting the header");
 463 #endif
 464
 465         dc.SetBackgroundMode(wxTRANSPARENT);
 466         dc.SetTextForeground(m_colHeaderFg);
 467         dc.SetBrush(wxBrush(m_colHeaderBg, wxSOLID));
 468         dc.SetPen(wxPen(m_colHeaderBg, 1, wxSOLID));
 469         dc.DrawRectangle(0, 0, 7*m_widthCol, m_heightRow);
 470
 471         bool startOnMonday = (GetWindowStyle() & wxCAL_MONDAY_FIRST) != 0;
 472         for ( size_t wd = 0; wd < 7; wd++ )
 473         {
 474             size_t n;
 475             if ( startOnMonday )
 476                 n = wd == 6 ? 0 : wd + 1;
 477             else
 478                 n = wd;
 479
 480             dc.DrawText(m_weekdays[n], wd*m_widthCol + 1, 0);
 481         }
 482     }
 483
 484     // then the calendar itself
 485     dc.SetTextForeground(*wxBLACK);
 486     //dc.SetFont(*wxNORMAL_FONT);
 487
 488     wxCoord y = m_heightRow;
 489
 490     wxDateTime date = GetStartDate();
 491 #if DEBUG_PAINT
 492     printf("starting calendar from %s\n",
 493             date.Format("%a %d-%m-%Y %H:%M:%S").c_str());
 494 #endif
 495
 496     dc.SetBackgroundMode(wxSOLID);
 497     for ( size_t nWeek = 1; nWeek <= 6; nWeek++, y += m_heightRow )
 498     {
 499         // if the update region doesn't intersect this row, don't paint it
 500         if ( !IsExposed(0, y, 7*m_widthCol, m_heightRow - 1) )
 501         {
 502             date += wxDateSpan::Week();
 503
 504             continue;
 505         }
 506
 507 #if DEBUG_PAINT
 508         printf("painting week %d at y = %d\n", nWeek, y);
 509 #endif
 510
 511         for ( size_t wd = 0; wd < 7; wd++ )
 512         {
 513             if ( IsDateShown(date) )
 514             {
 515                 // don't use wxDate::Format() which prepends 0s
 516                 unsigned int day = date.GetDay();
 517                 wxString dayStr = wxString::Format(_T("%u"), day);
 518                 wxCoord width;
 519                 dc.GetTextExtent(dayStr, &width, (wxCoord *)NULL);
 520
 521                 bool changedColours = FALSE,
 522                      changedFont = FALSE;
 523
 524                 wxCalendarDateAttr *attr = m_attrs[day - 1];
 525
 526                 bool isSel = m_date == date;
 527                 if ( isSel )
 528                 {
 529                     dc.SetTextForeground(m_colHighlightFg);
 530                     dc.SetTextBackground(m_colHighlightBg);
 531
 532                     changedColours = TRUE;
 533                 }
 534                 else if ( attr )
 535                 {
 536                     wxColour colFg, colBg;
 537
 538                     if ( attr->IsHoliday() )
 539                     {
 540                         colFg = m_colHolidayFg;
 541                         colBg = m_colHolidayBg;
 542                     }
 543                     else
 544                     {
 545                         colFg = attr->GetTextColour();
 546                         colBg = attr->GetBackgroundColour();
 547                     }
 548
 549                     if ( colFg.Ok() )
 550                     {
 551                         dc.SetTextForeground(colFg);
 552                         changedColours = TRUE;
 553                     }
 554
 555                     if ( colBg.Ok() )
 556                     {
 557                         dc.SetTextBackground(colBg);
 558                         changedColours = TRUE;
 559                     }
 560
 561                     if ( attr->HasFont() )
 562                     {
 563                         dc.SetFont(attr->GetFont());
 564                         changedFont = TRUE;
 565                     }
 566                 }
 567
 568                 wxCoord x = wd*m_widthCol + (m_widthCol - width) / 2;
 569                 dc.DrawText(dayStr, x, y + 1);
 570
 571                 if ( !isSel && attr && attr->HasBorder() )
 572                 {
 573                     wxColour colBorder;
 574                     if ( attr->HasBorderColour() )
 575                     {
 576                         colBorder = attr->GetBorderColour();
 577                     }
 578                     else
 579                     {
 580                         colBorder = m_foregroundColour;
 581                     }
 582
 583                     wxPen pen(colBorder, 1, wxSOLID);
 584                     dc.SetPen(pen);
 585                     dc.SetBrush(*wxTRANSPARENT_BRUSH);
 586
 587                     switch ( attr->GetBorder() )
 588                     {
 589                         case wxCAL_BORDER_SQUARE:
 590                             dc.DrawRectangle(x - 2, y,
 591                                              width + 4, m_heightRow);
 592                             break;
 593
 594                         case wxCAL_BORDER_ROUND:
 595                             dc.DrawEllipse(x - 2, y,
 596                                            width + 4, m_heightRow);
 597                             break;
 598
 599                         default:
 600                             wxFAIL_MSG(_T("unknown border type"));
 601                     }
 602                 }
 603
 604                 if ( changedColours )
 605                 {
 606                     dc.SetTextForeground(m_foregroundColour);
 607                     dc.SetTextBackground(m_backgroundColour);
 608                 }
 609
 610                 if ( changedFont )
 611                 {
 612                     dc.SetFont(m_font);
 613                 }
 614             }
 615             //else: just don't draw it
 616
 617             date += wxDateSpan::Day();
 618         }
 619     }
 620 #if DEBUG_PAINT
 621     puts("+++ finished painting");
 622 #endif
 623 }
 624
 625 void wxCalendarCtrl::RefreshDate(const wxDateTime& date)
 626 {
 627     RecalcGeometry();
 628
 629     wxRect rect;
 630
 631     // always refresh the whole row at once because our OnPaint() will draw
 632     // the whole row anyhow - and this allows the small optimisation in
 633     // OnClick() below to work
 634     rect.x = 0;
 635     rect.y = m_heightRow * GetWeek(date);
 636     rect.width = 7*m_widthCol;
 637     rect.height = m_heightRow;
 638
 639 #if DEBUG_PAINT
 640     printf("*** refreshing week %d at (%d, %d)-(%d, %d)\n",
 641            GetWeek(date),
 642            rect.x, rect.y,
 643            rect.x + rect.width, rect.y + rect.height);
 644 #endif
 645
 646     Refresh(TRUE, &rect);
 647 }
 648
 649 // ----------------------------------------------------------------------------
 650 // mouse handling
 651 // ----------------------------------------------------------------------------
 652
 653 void wxCalendarCtrl::OnDClick(wxMouseEvent& event)
 654 {
 655     if ( HitTest(event.GetPosition()) != wxCAL_HITTEST_DAY )
 656     {
 657         event.Skip();
 658     }
 659     else
 660     {
 661         GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED);
 662     }
 663 }
 664
 665 void wxCalendarCtrl::OnClick(wxMouseEvent& event)
 666 {
 667     wxDateTime date;
 668     wxDateTime::WeekDay wday;
 669     switch ( HitTest(event.GetPosition(), &date, &wday) )
 670     {
 671         case wxCAL_HITTEST_DAY:
 672             ChangeDay(date);
 673
 674             GenerateEvents(wxEVT_CALENDAR_DAY_CHANGED,
 675                            wxEVT_CALENDAR_SEL_CHANGED);
 676             break;
 677
 678         case wxCAL_HITTEST_HEADER:
 679             {
 680                 wxCalendarEvent event(this, wxEVT_CALENDAR_WEEKDAY_CLICKED);
 681                 event.m_wday = wday;
 682                 (void)GetEventHandler()->ProcessEvent(event);
 683             }
 684             break;
 685
 686         default:
 687             wxFAIL_MSG(_T("unknown hittest code"));
 688             // fall through
 689
 690         case wxCAL_HITTEST_NOWHERE:
 691             event.Skip();
 692             break;
 693     }
 694 }
 695
 696 wxCalendarHitTestResult wxCalendarCtrl::HitTest(const wxPoint& pos,
 697                                                 wxDateTime *date,
 698                                                 wxDateTime::WeekDay *wd)
 699 {
 700     RecalcGeometry();
 701
 702     int wday = pos.x / m_widthCol;
 703
 704     wxCoord y = pos.y;
 705     if ( y < m_heightRow )
 706     {
 707         if ( wd )
 708         {
 709             if ( GetWindowStyle() & wxCAL_MONDAY_FIRST )
 710             {
 711                 wday = wday == 6 ? 0 : wday + 1;
 712             }
 713
 714             *wd = (wxDateTime::WeekDay)wday;
 715         }
 716
 717         return wxCAL_HITTEST_HEADER;
 718     }
 719
 720     int week = (y - m_heightRow) / m_heightRow;
 721     if ( week >= 6 || wday >= 7 )
 722     {
 723         return wxCAL_HITTEST_NOWHERE;
 724     }
 725
 726     wxDateTime dt = GetStartDate() + wxDateSpan::Days(7*week + wday);
 727
 728     if ( IsDateShown(dt) )
 729     {
 730         if ( date )
 731             *date = dt;
 732
 733         return wxCAL_HITTEST_DAY;
 734     }
 735     else
 736     {
 737         return wxCAL_HITTEST_NOWHERE;
 738     }
 739 }
 740
 741 // ----------------------------------------------------------------------------
 742 // subcontrols events handling
 743 // ----------------------------------------------------------------------------
 744
 745 void wxCalendarCtrl::OnMonthChange(wxCommandEvent& event)
 746 {
 747     wxDateTime::Tm tm = m_date.GetTm();
 748
 749     wxDateTime::Month mon = (wxDateTime::Month)event.GetInt();
 750     if ( tm.mday > wxDateTime::GetNumberOfDays(mon, tm.year) )
 751     {
 752         tm.mday = wxDateTime::GetNumberOfDays(mon, tm.year);
 753     }
 754
 755     SetDate(wxDateTime(tm.mday, mon, tm.year));
 756
 757     GenerateEvents(wxEVT_CALENDAR_MONTH_CHANGED, wxEVT_CALENDAR_SEL_CHANGED);
 758 }
 759
 760 void wxCalendarCtrl::OnYearChange(wxSpinEvent& event)
 761 {
 762     wxDateTime::Tm tm = m_date.GetTm();
 763
 764     int year = (int)event.GetInt();
 765     if ( tm.mday > wxDateTime::GetNumberOfDays(tm.mon, year) )
 766     {
 767         tm.mday = wxDateTime::GetNumberOfDays(tm.mon, year);
 768     }
 769
 770     SetDate(wxDateTime(tm.mday, tm.mon, year));
 771
 772     GenerateEvents(wxEVT_CALENDAR_YEAR_CHANGED, wxEVT_CALENDAR_SEL_CHANGED);
 773 }
 774
 775 // ----------------------------------------------------------------------------
 776 // keyboard interface
 777 // ----------------------------------------------------------------------------
 778
 779 void wxCalendarCtrl::OnChar(wxKeyEvent& event)
 780 {
 781     switch ( event.KeyCode() )
 782     {
 783         case _T('+'):
 784         case WXK_ADD:
 785             SetDateAndNotify(m_date + wxDateSpan::Year());
 786             break;
 787
 788         case _T('-'):
 789         case WXK_SUBTRACT:
 790             SetDateAndNotify(m_date - wxDateSpan::Year());
 791             break;
 792
 793         case WXK_PRIOR:
 794             SetDateAndNotify(m_date - wxDateSpan::Month());
 795             break;
 796
 797         case WXK_NEXT:
 798             SetDateAndNotify(m_date + wxDateSpan::Month());
 799             break;
 800
 801         case WXK_RIGHT:
 802             if ( event.ControlDown() )
 803                 SetDateAndNotify(wxDateTime(m_date).SetToNextWeekDay(
 804                                  GetWindowStyle() & wxCAL_MONDAY_FIRST
 805                                  ? wxDateTime::Sun : wxDateTime::Sat));
 806             else
 807                 SetDateAndNotify(m_date + wxDateSpan::Day());
 808             break;
 809
 810         case WXK_LEFT:
 811             if ( event.ControlDown() )
 812                 SetDateAndNotify(wxDateTime(m_date).SetToPrevWeekDay(
 813                                  GetWindowStyle() & wxCAL_MONDAY_FIRST
 814                                  ? wxDateTime::Mon : wxDateTime::Sun));
 815             else
 816                 SetDateAndNotify(m_date - wxDateSpan::Day());
 817             break;
 818
 819         case WXK_UP:
 820             SetDateAndNotify(m_date - wxDateSpan::Week());
 821             break;
 822
 823         case WXK_DOWN:
 824             SetDateAndNotify(m_date + wxDateSpan::Week());
 825             break;
 826
 827         case WXK_HOME:
 828             if ( event.ControlDown() )
 829                 SetDateAndNotify(wxDateTime::Today());
 830             else
 831                 SetDateAndNotify(wxDateTime(1, m_date.GetMonth(), m_date.GetYear()));
 832             break;
 833
 834         case WXK_END:
 835             SetDateAndNotify(wxDateTime(m_date).SetToLastMonthDay());
 836             break;
 837
 838         case WXK_RETURN:
 839             GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED);
 840             break;
 841
 842         default:
 843             event.Skip();
 844     }
 845 }
 846
 847 // ----------------------------------------------------------------------------
 848 // holidays handling
 849 // ----------------------------------------------------------------------------
 850
 851 void wxCalendarCtrl::OnCalMonthChange(wxCalendarEvent& event)
 852 {
 853     SetHolidayAttrs();
 854
 855     event.Skip();
 856 }
 857
 858 void wxCalendarCtrl::EnableHolidayDisplay(bool display)
 859 {
 860     long style = GetWindowStyle();
 861     if ( display )
 862         style |= wxCAL_SHOW_HOLIDAYS;
 863     else
 864         style &= ~wxCAL_SHOW_HOLIDAYS;
 865
 866     SetWindowStyle(style);
 867
 868     if ( display )
 869         SetHolidayAttrs();
 870     else
 871         ResetHolidayAttrs();
 872
 873     Refresh();
 874 }
 875
 876 void wxCalendarCtrl::SetHolidayAttrs()
 877 {
 878     if ( GetWindowStyle() & wxCAL_SHOW_HOLIDAYS )
 879     {
 880         ResetHolidayAttrs();
 881
 882         wxDateTime::Tm tm = m_date.GetTm();
 883         wxDateTime dtStart(1, tm.mon, tm.year),
 884                    dtEnd = dtStart.GetLastMonthDay();
 885
 886         wxDateTimeArray hol;
 887         wxDateTimeHolidayAuthority::GetHolidaysInRange(dtStart, dtEnd, hol);
 888
 889         size_t count = hol.GetCount();
 890         for ( size_t n = 0; n < count; n++ )
 891         {
 892             SetHoliday(hol[n].GetDay());
 893         }
 894     }
 895 }
 896
 897 void wxCalendarCtrl::SetHoliday(size_t day)
 898 {
 899     wxCHECK_RET( day > 0 && day < 32, _T("invalid day in SetHoliday") );
 900
 901     wxCalendarDateAttr *attr = GetAttr(day);
 902     if ( !attr )
 903     {
 904         attr = new wxCalendarDateAttr;
 905     }
 906
 907     attr->SetHoliday(TRUE);
 908
 909     // can't use SetAttr() because it would delete this pointer
 910     m_attrs[day - 1] = attr;
 911 }
 912
 913 void wxCalendarCtrl::ResetHolidayAttrs()
 914 {
 915     for ( size_t day = 0; day < 31; day++ )
 916     {
 917         if ( m_attrs[day] )
 918         {
 919             m_attrs[day]->SetHoliday(FALSE);
 920         }
 921     }
 922 }
 923
 924 // ----------------------------------------------------------------------------
 925 // wxCalendarEvent
 926 // ----------------------------------------------------------------------------
 927
 928 void wxCalendarEvent::Init()
 929 {
 930     m_wday = wxDateTime::Inv_WeekDay;
 931 }
 932
 933 wxCalendarEvent::wxCalendarEvent(wxCalendarCtrl *cal, wxEventType type)
 934                : wxCommandEvent(type, cal->GetId())
 935 {
 936     m_date = cal->GetDate();
 937 }