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 licence
  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     #include "wx/textctrl.h"
  38 #endif //WX_PRECOMP
  39
  40 #if wxUSE_CALENDARCTRL
  41
  42 #include "wx/spinctrl.h"
  43
  44 #include "wx/calctrl.h"
  45
  46 #define DEBUG_PAINT 0
  47
  48 // ----------------------------------------------------------------------------
  49 // private classes
  50 // ----------------------------------------------------------------------------
  51
  52 class wxMonthComboBox : public wxComboBox
  53 {
  54 public:
  55     wxMonthComboBox(wxCalendarCtrl *cal);
  56
  57     void OnMonthChange(wxCommandEvent& event) { m_cal->OnMonthChange(event); }
  58
  59 private:
  60     wxCalendarCtrl *m_cal;
  61
  62     DECLARE_EVENT_TABLE()
  63     DECLARE_NO_COPY_CLASS(wxMonthComboBox)
  64 };
  65
  66 class wxYearSpinCtrl : public wxSpinCtrl
  67 {
  68 public:
  69     wxYearSpinCtrl(wxCalendarCtrl *cal);
  70
  71     void OnYearTextChange(wxCommandEvent& event) { m_cal->OnYearChange(event); }
  72     void OnYearChange(wxSpinEvent& event) { m_cal->OnYearChange(event); }
  73
  74 private:
  75     wxCalendarCtrl *m_cal;
  76
  77     DECLARE_EVENT_TABLE()
  78     DECLARE_NO_COPY_CLASS(wxYearSpinCtrl)
  79 };
  80
  81 // ----------------------------------------------------------------------------
  82 // wxWin macros
  83 // ----------------------------------------------------------------------------
  84
  85 BEGIN_EVENT_TABLE(wxCalendarCtrl, wxControl)
  86     EVT_PAINT(wxCalendarCtrl::OnPaint)
  87
  88     EVT_CHAR(wxCalendarCtrl::OnChar)
  89
  90     EVT_LEFT_DOWN(wxCalendarCtrl::OnClick)
  91     EVT_LEFT_DCLICK(wxCalendarCtrl::OnDClick)
  92 END_EVENT_TABLE()
  93
  94 BEGIN_EVENT_TABLE(wxMonthComboBox, wxComboBox)
  95     EVT_COMBOBOX(-1, wxMonthComboBox::OnMonthChange)
  96 END_EVENT_TABLE()
  97
  98 BEGIN_EVENT_TABLE(wxYearSpinCtrl, wxSpinCtrl)
  99     EVT_TEXT(-1, wxYearSpinCtrl::OnYearTextChange)
 100     EVT_SPINCTRL(-1, wxYearSpinCtrl::OnYearChange)
 101 END_EVENT_TABLE()
 102
 103 IMPLEMENT_DYNAMIC_CLASS(wxCalendarCtrl, wxControl)
 104 IMPLEMENT_DYNAMIC_CLASS(wxCalendarEvent, wxCommandEvent)
 105
 106 // ----------------------------------------------------------------------------
 107 // events
 108 // ----------------------------------------------------------------------------
 109
 110 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_SEL_CHANGED)
 111 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_DAY_CHANGED)
 112 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_MONTH_CHANGED)
 113 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_YEAR_CHANGED)
 114 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_DOUBLECLICKED)
 115 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_WEEKDAY_CLICKED)
 116
 117 // ============================================================================
 118 // implementation
 119 // ============================================================================
 120
 121 // ----------------------------------------------------------------------------
 122 // wxMonthComboBox and wxYearSpinCtrl
 123 // ----------------------------------------------------------------------------
 124
 125 wxMonthComboBox::wxMonthComboBox(wxCalendarCtrl *cal)
 126                : wxComboBox(cal->GetParent(), -1,
 127                             wxEmptyString,
 128                             wxDefaultPosition,
 129                             wxDefaultSize,
 130                             0, NULL,
 131                             wxCB_READONLY | wxCLIP_SIBLINGS)
 132 {
 133     m_cal = cal;
 134
 135     wxDateTime::Month m;
 136     for ( m = wxDateTime::Jan; m < wxDateTime::Inv_Month; wxNextMonth(m) )
 137     {
 138         Append(wxDateTime::GetMonthName(m));
 139     }
 140
 141     SetSelection(m_cal->GetDate().GetMonth());
 142     SetSize(-1, -1, -1, -1, wxSIZE_AUTO_WIDTH|wxSIZE_AUTO_HEIGHT);
 143 }
 144
 145 wxYearSpinCtrl::wxYearSpinCtrl(wxCalendarCtrl *cal)
 146               : wxSpinCtrl(cal->GetParent(), -1,
 147                            cal->GetDate().Format(_T("%Y")),
 148                            wxDefaultPosition,
 149                            wxDefaultSize,
 150                            wxSP_ARROW_KEYS | wxCLIP_SIBLINGS,
 151                            -4300, 10000, cal->GetDate().GetYear())
 152
 153 {
 154     m_cal = cal;
 155 }
 156
 157 // ----------------------------------------------------------------------------
 158 // wxCalendarCtrl
 159 // ----------------------------------------------------------------------------
 160
 161 wxCalendarCtrl::wxCalendarCtrl(wxWindow *parent,
 162                    wxWindowID id,
 163                    const wxDateTime& date,
 164                    const wxPoint& pos,
 165                    const wxSize& size,
 166                    long style,
 167                    const wxString& name)
 168 {
 169     Init();
 170
 171     (void)Create(parent, id, date, pos, size, style, name);
 172 }
 173
 174 void wxCalendarCtrl::Init()
 175 {
 176     m_comboMonth = NULL;
 177     m_spinYear = NULL;
 178
 179     m_userChangedYear = FALSE;
 180
 181     m_widthCol =
 182     m_heightRow = 0;
 183
 184     wxDateTime::WeekDay wd;
 185     for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
 186     {
 187         m_weekdays[wd] = wxDateTime::GetWeekDayName(wd, wxDateTime::Name_Abbr);
 188     }
 189
 190     for ( size_t n = 0; n < WXSIZEOF(m_attrs); n++ )
 191     {
 192         m_attrs[n] = NULL;
 193     }
 194
 195     m_colHighlightFg = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
 196     m_colHighlightBg = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
 197
 198     m_colHolidayFg = *wxRED;
 199     // don't set m_colHolidayBg - by default, same as our bg colour
 200
 201     m_colHeaderFg = *wxBLUE;
 202     m_colHeaderBg = *wxLIGHT_GREY;
 203 }
 204
 205 bool wxCalendarCtrl::Create(wxWindow *parent,
 206                             wxWindowID id,
 207                             const wxDateTime& date,
 208                             const wxPoint& pos,
 209                             const wxSize& size,
 210                             long style,
 211                             const wxString& name)
 212 {
 213     if ( !wxControl::Create(parent, id, pos, size,
 214                             style | wxCLIP_CHILDREN | wxWANTS_CHARS,
 215                             wxDefaultValidator, name) )
 216     {
 217         return FALSE;
 218     }
 219
 220     // needed to get the arrow keys normally used for the dialog navigation
 221     SetWindowStyle(style | wxWANTS_CHARS);
 222
 223     m_date = date.IsValid() ? date : wxDateTime::Today();
 224
 225     m_lowdate = wxDefaultDateTime;
 226     m_highdate = wxDefaultDateTime;
 227
 228     if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 229     {
 230         m_spinYear = new wxYearSpinCtrl(this);
 231         m_staticYear = new wxStaticText(GetParent(), -1, m_date.Format(_T("%Y")),
 232                                         wxDefaultPosition, wxDefaultSize,
 233                                         wxALIGN_CENTRE);
 234
 235         m_comboMonth = new wxMonthComboBox(this);
 236         m_staticMonth = new wxStaticText(GetParent(), -1, m_date.Format(_T("%B")),
 237                                          wxDefaultPosition, wxDefaultSize,
 238                                          wxALIGN_CENTRE);
 239     }
 240
 241     ShowCurrentControls();
 242
 243     wxSize sizeReal;
 244     if ( size.x == -1 || size.y == -1 )
 245     {
 246         sizeReal = DoGetBestSize();
 247         if ( size.x != -1 )
 248             sizeReal.x = size.x;
 249         if ( size.y != -1 )
 250             sizeReal.y = size.y;
 251     }
 252     else
 253     {
 254         sizeReal = size;
 255     }
 256
 257     // we need to set the position as well because the main control position
 258     // is not the same as the one specified in pos if we have the controls
 259     // above it
 260     SetSize(pos.x, pos.y, sizeReal.x, sizeReal.y);
 261
 262     SetBackgroundColour(*wxWHITE);
 263     SetFont(*wxSWISS_FONT);
 264
 265     SetHolidayAttrs();
 266
 267     return TRUE;
 268 }
 269
 270 wxCalendarCtrl::~wxCalendarCtrl()
 271 {
 272     for ( size_t n = 0; n < WXSIZEOF(m_attrs); n++ )
 273     {
 274         delete m_attrs[n];
 275     }
 276 }
 277
 278 // ----------------------------------------------------------------------------
 279 // forward wxWin functions to subcontrols
 280 // ----------------------------------------------------------------------------
 281
 282 bool wxCalendarCtrl::Destroy()
 283 {
 284     if ( m_staticYear )
 285         m_staticYear->Destroy();
 286     if ( m_spinYear )
 287         m_spinYear->Destroy();
 288     if ( m_comboMonth )
 289         m_comboMonth->Destroy();
 290     if ( m_staticMonth )
 291         m_staticMonth->Destroy();
 292
 293     m_staticYear = NULL;
 294     m_spinYear = NULL;
 295     m_comboMonth = NULL;
 296     m_staticMonth = NULL;
 297
 298     return wxControl::Destroy();
 299 }
 300
 301 bool wxCalendarCtrl::Show(bool show)
 302 {
 303     if ( !wxControl::Show(show) )
 304     {
 305         return FALSE;
 306     }
 307
 308     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 309     {
 310         if ( GetMonthControl() )
 311         {
 312             GetMonthControl()->Show(show);
 313             GetYearControl()->Show(show);
 314         }
 315     }
 316
 317     return TRUE;
 318 }
 319
 320 bool wxCalendarCtrl::Enable(bool enable)
 321 {
 322     if ( !wxControl::Enable(enable) )
 323     {
 324         return FALSE;
 325     }
 326
 327     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 328     {
 329         GetMonthControl()->Enable(enable);
 330         GetYearControl()->Enable(enable);
 331     }
 332
 333     return TRUE;
 334 }
 335
 336 // ----------------------------------------------------------------------------
 337 // enable/disable month/year controls
 338 // ----------------------------------------------------------------------------
 339
 340 void wxCalendarCtrl::ShowCurrentControls()
 341 {
 342     if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 343     {
 344         if ( AllowMonthChange() )
 345         {
 346             m_comboMonth->Show();
 347             m_staticMonth->Hide();
 348
 349             if ( AllowYearChange() )
 350             {
 351                 m_spinYear->Show();
 352                 m_staticYear->Hide();
 353
 354                 // skip the rest
 355                 return;
 356             }
 357         }
 358         else
 359         {
 360             m_comboMonth->Hide();
 361             m_staticMonth->Show();
 362         }
 363
 364         // year change not allowed here
 365         m_spinYear->Hide();
 366         m_staticYear->Show();
 367     }
 368 }
 369
 370 wxControl *wxCalendarCtrl::GetMonthControl() const
 371 {
 372     return AllowMonthChange() ? (wxControl *)m_comboMonth : (wxControl *)m_staticMonth;
 373 }
 374
 375 wxControl *wxCalendarCtrl::GetYearControl() const
 376 {
 377     return AllowYearChange() ? (wxControl *)m_spinYear : (wxControl *)m_staticYear;
 378 }
 379
 380 void wxCalendarCtrl::EnableYearChange(bool enable)
 381 {
 382     if ( enable != AllowYearChange() )
 383     {
 384         long style = GetWindowStyle();
 385         if ( enable )
 386             style &= ~wxCAL_NO_YEAR_CHANGE;
 387         else
 388             style |= wxCAL_NO_YEAR_CHANGE;
 389         SetWindowStyle(style);
 390
 391         ShowCurrentControls();
 392         if ( GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION )
 393         {
 394             Refresh();
 395         }
 396     }
 397 }
 398
 399 void wxCalendarCtrl::EnableMonthChange(bool enable)
 400 {
 401     if ( enable != AllowMonthChange() )
 402     {
 403         long style = GetWindowStyle();
 404         if ( enable )
 405             style &= ~wxCAL_NO_MONTH_CHANGE;
 406         else
 407             style |= wxCAL_NO_MONTH_CHANGE;
 408         SetWindowStyle(style);
 409
 410         ShowCurrentControls();
 411         if ( GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION )
 412         {
 413             Refresh();
 414         }
 415     }
 416 }
 417
 418 // ----------------------------------------------------------------------------
 419 // changing date
 420 // ----------------------------------------------------------------------------
 421
 422 bool wxCalendarCtrl::SetDate(const wxDateTime& date)
 423 {
 424     bool retval = TRUE;
 425
 426     bool sameMonth = m_date.GetMonth() == date.GetMonth(),
 427          sameYear = m_date.GetYear() == date.GetYear();
 428
 429     if ( IsDateInRange(date) )
 430     {
 431         if ( sameMonth && sameYear )
 432         {
 433             // just change the day
 434             ChangeDay(date);
 435         }
 436         else
 437         {
 438             if ( AllowMonthChange() && (AllowYearChange() || sameYear) )
 439             {
 440                 // change everything
 441                 m_date = date;
 442
 443                 if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 444                 {
 445                     // update the controls
 446                     m_comboMonth->SetSelection(m_date.GetMonth());
 447
 448                     if ( AllowYearChange() )
 449                     {
 450                         if ( !m_userChangedYear )
 451                             m_spinYear->SetValue(m_date.Format(_T("%Y")));
 452                         else // don't overwrite what the user typed in
 453                             m_userChangedYear = FALSE;
 454                     }
 455                 }
 456
 457                 // as the month changed, holidays did too
 458                 SetHolidayAttrs();
 459
 460                 // update the calendar
 461                 Refresh();
 462             }
 463             else
 464             {
 465                 // forbidden
 466                 retval = FALSE;
 467             }
 468         }
 469     }
 470
 471     return retval;
 472 }
 473
 474 void wxCalendarCtrl::ChangeDay(const wxDateTime& date)
 475 {
 476     if ( m_date != date )
 477     {
 478         // we need to refresh the row containing the old date and the one
 479         // containing the new one
 480         wxDateTime dateOld = m_date;
 481         m_date = date;
 482
 483         RefreshDate(dateOld);
 484
 485         // if the date is in the same row, it was already drawn correctly
 486         if ( GetWeek(m_date) != GetWeek(dateOld) )
 487         {
 488             RefreshDate(m_date);
 489         }
 490     }
 491 }
 492
 493 void wxCalendarCtrl::SetDateAndNotify(const wxDateTime& date)
 494 {
 495     wxDateTime::Tm tm1 = m_date.GetTm(),
 496                    tm2 = date.GetTm();
 497
 498     wxEventType type;
 499     if ( tm1.year != tm2.year )
 500         type = wxEVT_CALENDAR_YEAR_CHANGED;
 501     else if ( tm1.mon != tm2.mon )
 502         type = wxEVT_CALENDAR_MONTH_CHANGED;
 503     else if ( tm1.mday != tm2.mday )
 504         type = wxEVT_CALENDAR_DAY_CHANGED;
 505     else
 506         return;
 507
 508     if ( SetDate(date) )
 509     {
 510         GenerateEvents(type, wxEVT_CALENDAR_SEL_CHANGED);
 511     }
 512 }
 513
 514 // ----------------------------------------------------------------------------
 515 // date range
 516 // ----------------------------------------------------------------------------
 517
 518 bool wxCalendarCtrl::SetLowerDateLimit(const wxDateTime& date /* = wxDefaultDateTime */)
 519 {
 520     bool retval = TRUE;
 521
 522     if ( !(date.IsValid()) || ( ( m_highdate.IsValid() ) ? ( date <= m_highdate ) : TRUE ) )
 523     {
 524         m_lowdate = date;
 525     }
 526     else
 527     {
 528         retval = FALSE;
 529     }
 530
 531     return retval;
 532 }
 533
 534 bool wxCalendarCtrl::SetUpperDateLimit(const wxDateTime& date /* = wxDefaultDateTime */)
 535 {
 536     bool retval = TRUE;
 537
 538     if ( !(date.IsValid()) || ( ( m_lowdate.IsValid() ) ? ( date >= m_lowdate ) : TRUE ) )
 539     {
 540         m_highdate = date;
 541     }
 542     else
 543     {
 544         retval = FALSE;
 545     }
 546
 547     return retval;
 548 }
 549
 550 bool wxCalendarCtrl::SetDateRange(const wxDateTime& lowerdate /* = wxDefaultDateTime */, const wxDateTime& upperdate /* = wxDefaultDateTime */)
 551 {
 552     bool retval = TRUE;
 553
 554     if (
 555         ( !( lowerdate.IsValid() ) || ( ( upperdate.IsValid() ) ? ( lowerdate <= upperdate ) : TRUE ) ) &&
 556         ( !( upperdate.IsValid() ) || ( ( lowerdate.IsValid() ) ? ( upperdate >= lowerdate ) : TRUE ) ) )
 557     {
 558         m_lowdate = lowerdate;
 559         m_highdate = upperdate;
 560     }
 561     else
 562     {
 563         retval = FALSE;
 564     }
 565
 566     return retval;
 567 }
 568
 569 // ----------------------------------------------------------------------------
 570 // date helpers
 571 // ----------------------------------------------------------------------------
 572
 573 wxDateTime wxCalendarCtrl::GetStartDate() const
 574 {
 575     wxDateTime::Tm tm = m_date.GetTm();
 576
 577     wxDateTime date = wxDateTime(1, tm.mon, tm.year);
 578
 579     // rewind back
 580     date.SetToPrevWeekDay(GetWindowStyle() & wxCAL_MONDAY_FIRST
 581                           ? wxDateTime::Mon : wxDateTime::Sun);
 582
 583     if ( GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS )
 584     {
 585         // We want to offset the calendar if we start on the first..
 586         if ( date.GetDay() == 1 )
 587         {
 588             date -= wxDateSpan::Week();
 589         }
 590     }
 591
 592     return date;
 593 }
 594
 595 bool wxCalendarCtrl::IsDateShown(const wxDateTime& date) const
 596 {
 597     if ( !(GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) )
 598     {
 599         return date.GetMonth() == m_date.GetMonth();
 600     }
 601     else
 602     {
 603         return TRUE;
 604     }
 605 }
 606
 607 bool wxCalendarCtrl::IsDateInRange(const wxDateTime& date) const
 608 {
 609     bool retval = TRUE;
 610     // Check if the given date is in the range specified
 611     retval = ( ( ( m_lowdate.IsValid() ) ? ( date >= m_lowdate ) : TRUE )
 612         && ( ( m_highdate.IsValid() ) ? ( date <= m_highdate ) : TRUE ) );
 613     return retval;
 614 }
 615
 616 bool wxCalendarCtrl::ChangeYear(wxDateTime* target) const
 617 {
 618     bool retval = FALSE;
 619
 620     if ( !(IsDateInRange(*target)) )
 621     {
 622         if ( target->GetYear() < m_date.GetYear() )
 623         {
 624             if ( target->GetYear() >= GetLowerDateLimit().GetYear() )
 625             {
 626                 *target = GetLowerDateLimit();
 627                 retval = TRUE;
 628             }
 629             else
 630             {
 631                 *target = m_date;
 632             }
 633         }
 634         else
 635         {
 636             if ( target->GetYear() <= GetUpperDateLimit().GetYear() )
 637             {
 638                 *target = GetUpperDateLimit();
 639                 retval = TRUE;
 640             }
 641             else
 642             {
 643                 *target = m_date;
 644             }
 645         }
 646     }
 647     else
 648     {
 649         retval = TRUE;
 650     }
 651
 652     return retval;
 653 }
 654
 655 bool wxCalendarCtrl::ChangeMonth(wxDateTime* target) const
 656 {
 657     bool retval = TRUE;
 658
 659     if ( !(IsDateInRange(*target)) )
 660     {
 661         retval = FALSE;
 662
 663         if ( target->GetMonth() < m_date.GetMonth() )
 664         {
 665             *target = GetLowerDateLimit();
 666         }
 667         else
 668         {
 669             *target = GetUpperDateLimit();
 670         }
 671     }
 672
 673     return retval;
 674 }
 675
 676 size_t wxCalendarCtrl::GetWeek(const wxDateTime& date) const
 677 {
 678     size_t retval = date.GetWeekOfMonth(GetWindowStyle() & wxCAL_MONDAY_FIRST
 679                                    ? wxDateTime::Monday_First
 680                                    : wxDateTime::Sunday_First);
 681
 682     if ( (GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) )
 683     {
 684         // we need to offset an extra week if we "start" on the 1st of the month
 685         wxDateTime::Tm tm = date.GetTm();
 686
 687         wxDateTime datetest = wxDateTime(1, tm.mon, tm.year);
 688
 689         // rewind back
 690         datetest.SetToPrevWeekDay(GetWindowStyle() & wxCAL_MONDAY_FIRST
 691                               ? wxDateTime::Mon : wxDateTime::Sun);
 692
 693         if ( datetest.GetDay() == 1 )
 694         {
 695             retval += 1;
 696         }
 697     }
 698
 699     return retval;
 700 }
 701
 702 // ----------------------------------------------------------------------------
 703 // size management
 704 // ----------------------------------------------------------------------------
 705
 706 // this is a composite control and it must arrange its parts each time its
 707 // size or position changes: the combobox and spinctrl are along the top of
 708 // the available area and the calendar takes up therest of the space
 709
 710 // the static controls are supposed to be always smaller than combo/spin so we
 711 // always use the latter for size calculations and position the static to take
 712 // the same space
 713
 714 // the constants used for the layout
 715 #define VERT_MARGIN     5           // distance between combo and calendar
 716 #ifdef __WXMAC__
 717 #define HORZ_MARGIN    5           //                            spin
 718 #else
 719 #define HORZ_MARGIN    15           //                            spin
 720 #endif
 721 wxSize wxCalendarCtrl::DoGetBestSize() const
 722 {
 723     // calc the size of the calendar
 724     ((wxCalendarCtrl *)this)->RecalcGeometry(); // const_cast
 725
 726     wxCoord width = 7*m_widthCol,
 727             height = 7*m_heightRow + m_rowOffset + VERT_MARGIN;
 728
 729     if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 730     {
 731         // the combobox doesn't report its height correctly (it returns the
 732         // height including the drop down list) so don't use it
 733         height += m_spinYear->GetBestSize().y;
 734     }
 735
 736     if ( !HasFlag(wxBORDER_NONE) )
 737     {
 738         // the border would clip the last line otherwise
 739         height += 6;
 740         width += 4;
 741     }
 742
 743     return wxSize(width, height);
 744 }
 745
 746 void wxCalendarCtrl::DoSetSize(int x, int y,
 747                                int width, int height,
 748                                int sizeFlags)
 749 {
 750     wxControl::DoSetSize(x, y, width, height, sizeFlags);
 751 }
 752
 753 void wxCalendarCtrl::DoMoveWindow(int x, int y, int width, int height)
 754 {
 755     int yDiff;
 756
 757     if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 758     {
 759         wxSize sizeCombo = m_comboMonth->GetSize();
 760         wxSize sizeStatic = m_staticMonth->GetSize();
 761         wxSize sizeSpin = m_spinYear->GetSize();
 762         int dy = (sizeCombo.y - sizeStatic.y) / 2;
 763 /*
 764 In the calender the size of the combobox for the year
 765 is just defined by a margin from the month combobox to
 766 the left border. While in wxUniv the year control can't
 767 show all 4 digits, in wxMsw it show almost twice as
 768 much. Instead the year should use it's best size and be
 769 left aligned to the calendar. Just in case the month in
 770 any language is longer than it has space in the
 771 calendar it is shortend.This way the year always can
 772 show the 4 digits.
 773
 774 This patch relies on the fact that a combobox has a
 775 good best size implementation. This is not the case
 776 with wxMSW but I don't know why.
 777
 778 Otto Wyss
 779 */
 780
 781 #ifdef __WXUNIVERSAL__
 782         if (sizeCombo.x + HORZ_MARGIN - sizeSpin.x > width)
 783         {
 784             m_comboMonth->SetSize(x, y, width - HORZ_MARGIN - sizeSpin.x, sizeCombo.y);
 785         }
 786         else
 787         {
 788             m_comboMonth->Move(x, y);
 789         }
 790         m_staticMonth->Move(x, y + dy);
 791         m_spinYear->Move(x + width - sizeSpin.x, y);
 792         m_staticYear->Move(x + width - sizeSpin.x, y + dy);
 793 #else
 794         m_comboMonth->Move(x, y);
 795         m_staticMonth->SetSize(x, y + dy, sizeCombo.x, sizeStatic.y);
 796
 797         int xDiff = sizeCombo.x + HORZ_MARGIN;
 798
 799         m_spinYear->SetSize(x + xDiff, y, width - xDiff, sizeCombo.y);
 800         m_staticYear->SetSize(x + xDiff, y + dy, width - xDiff, sizeStatic.y);
 801 #endif
 802         yDiff = wxMax(sizeSpin.y, sizeCombo.y) + VERT_MARGIN;
 803     }
 804     else // no controls on the top
 805     {
 806         yDiff = 0;
 807     }
 808
 809     wxControl::DoMoveWindow(x, y + yDiff, width, height - yDiff);
 810 }
 811
 812 void wxCalendarCtrl::DoGetPosition(int *x, int *y) const
 813 {
 814     wxControl::DoGetPosition(x, y);
 815
 816     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 817     {
 818         // our real top corner is not in this position
 819         if ( y )
 820         {
 821             *y -= GetMonthControl()->GetSize().y + VERT_MARGIN;
 822         }
 823     }
 824 }
 825
 826 void wxCalendarCtrl::DoGetSize(int *width, int *height) const
 827 {
 828     wxControl::DoGetSize(width, height);
 829
 830     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 831     {
 832         // our real height is bigger
 833         if ( height && GetMonthControl())
 834         {
 835             *height += GetMonthControl()->GetSize().y + VERT_MARGIN;
 836         }
 837     }
 838 }
 839
 840 void wxCalendarCtrl::RecalcGeometry()
 841 {
 842     if ( m_widthCol != 0 )
 843         return;
 844
 845     wxClientDC dc(this);
 846
 847     dc.SetFont(m_font);
 848
 849     // determine the column width (we assume that the weekday names are always
 850     // wider (in any language) than the numbers)
 851     m_widthCol = 0;
 852     wxDateTime::WeekDay wd;
 853     for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
 854     {
 855         wxCoord width;
 856         dc.GetTextExtent(m_weekdays[wd], &width, &m_heightRow);
 857         if ( width > m_widthCol )
 858         {
 859             m_widthCol = width;
 860         }
 861     }
 862
 863     // leave some margins
 864     m_widthCol += 2;
 865     m_heightRow += 2;
 866
 867     m_rowOffset = (GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) ? m_heightRow : 0; // conditional in relation to style
 868 }
 869
 870 // ----------------------------------------------------------------------------
 871 // drawing
 872 // ----------------------------------------------------------------------------
 873
 874 void wxCalendarCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
 875 {
 876     wxPaintDC dc(this);
 877
 878     dc.SetFont(m_font);
 879
 880     RecalcGeometry();
 881
 882 #if DEBUG_PAINT
 883     wxLogDebug("--- starting to paint, selection: %s, week %u\n",
 884            m_date.Format("%a %d-%m-%Y %H:%M:%S").c_str(),
 885            GetWeek(m_date));
 886 #endif
 887
 888     wxCoord y = 0;
 889
 890     if ( HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 891     {
 892         // draw the sequential month-selector
 893
 894         dc.SetBackgroundMode(wxTRANSPARENT);
 895         dc.SetTextForeground(*wxBLACK);
 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         // Get extent of month-name + year
 901         wxCoord monthw, monthh;
 902         wxString headertext = m_date.Format(wxT("%B %Y"));
 903         dc.GetTextExtent(headertext, &monthw, &monthh);
 904
 905         // draw month-name centered above weekdays
 906         wxCoord monthx = ((m_widthCol * 7) - monthw) / 2;
 907         wxCoord monthy = ((m_heightRow - monthh) / 2) + y;
 908         dc.DrawText(headertext, monthx,  monthy);
 909
 910         // calculate the "month-arrows"
 911         wxPoint leftarrow[3];
 912         wxPoint rightarrow[3];
 913
 914         int arrowheight = monthh / 2;
 915
 916         leftarrow[0] = wxPoint(0, arrowheight / 2);
 917         leftarrow[1] = wxPoint(arrowheight / 2, 0);
 918         leftarrow[2] = wxPoint(arrowheight / 2, arrowheight - 1);
 919
 920         rightarrow[0] = wxPoint(0, 0);
 921         rightarrow[1] = wxPoint(arrowheight / 2, arrowheight / 2);
 922         rightarrow[2] = wxPoint(0, arrowheight - 1);
 923
 924         // draw the "month-arrows"
 925
 926         wxCoord arrowy = (m_heightRow - arrowheight) / 2;
 927         wxCoord larrowx = (m_widthCol - (arrowheight / 2)) / 2;
 928         wxCoord rarrowx = ((m_widthCol - (arrowheight / 2)) / 2) + m_widthCol*6;
 929         m_leftArrowRect = wxRect(0, 0, 0, 0);
 930         m_rightArrowRect = wxRect(0, 0, 0, 0);
 931
 932         if ( AllowMonthChange() )
 933         {
 934             wxDateTime ldpm = wxDateTime(1,m_date.GetMonth(), m_date.GetYear()) - wxDateSpan::Day(); // last day prev month
 935             // Check if range permits change
 936             if ( IsDateInRange(ldpm) && ( ( ldpm.GetYear() == m_date.GetYear() ) ? TRUE : AllowYearChange() ) )
 937             {
 938                 m_leftArrowRect = wxRect(larrowx - 3, arrowy - 3, (arrowheight / 2) + 8, (arrowheight + 6));
 939                 dc.SetBrush(wxBrush(*wxBLACK, wxSOLID));
 940                 dc.SetPen(wxPen(*wxBLACK, 1, wxSOLID));
 941                 dc.DrawPolygon(3, leftarrow, larrowx , arrowy, wxWINDING_RULE);
 942                 dc.SetBrush(*wxTRANSPARENT_BRUSH);
 943                 dc.DrawRectangle(m_leftArrowRect);
 944             }
 945             wxDateTime fdnm = wxDateTime(1,m_date.GetMonth(), m_date.GetYear()) + wxDateSpan::Month(); // first day next month
 946             if ( IsDateInRange(fdnm) && ( ( fdnm.GetYear() == m_date.GetYear() ) ? TRUE : AllowYearChange() ) )
 947             {
 948                 m_rightArrowRect = wxRect(rarrowx - 4, arrowy - 3, (arrowheight / 2) + 8, (arrowheight + 6));
 949                 dc.SetBrush(wxBrush(*wxBLACK, wxSOLID));
 950                 dc.SetPen(wxPen(*wxBLACK, 1, wxSOLID));
 951                 dc.DrawPolygon(3, rightarrow, rarrowx , arrowy, wxWINDING_RULE);
 952                 dc.SetBrush(*wxTRANSPARENT_BRUSH);
 953                 dc.DrawRectangle(m_rightArrowRect);
 954             }
 955         }
 956
 957         y += m_heightRow;
 958     }
 959
 960     // first draw the week days
 961     if ( IsExposed(0, y, 7*m_widthCol, m_heightRow) )
 962     {
 963 #if DEBUG_PAINT
 964         wxLogDebug("painting the header");
 965 #endif
 966
 967         dc.SetBackgroundMode(wxTRANSPARENT);
 968         dc.SetTextForeground(m_colHeaderFg);
 969         dc.SetBrush(wxBrush(m_colHeaderBg, wxSOLID));
 970         dc.SetPen(wxPen(m_colHeaderBg, 1, wxSOLID));
 971         dc.DrawRectangle(0, y, GetClientSize().x, m_heightRow);
 972
 973         bool startOnMonday = (GetWindowStyle() & wxCAL_MONDAY_FIRST) != 0;
 974         for ( size_t wd = 0; wd < 7; wd++ )
 975         {
 976             size_t n;
 977             if ( startOnMonday )
 978                 n = wd == 6 ? 0 : wd + 1;
 979             else
 980                 n = wd;
 981             wxCoord dayw, dayh;
 982             dc.GetTextExtent(m_weekdays[n], &dayw, &dayh);
 983             dc.DrawText(m_weekdays[n], (wd*m_widthCol) + ((m_widthCol- dayw) / 2), y); // center the day-name
 984         }
 985     }
 986
 987     // then the calendar itself
 988     dc.SetTextForeground(*wxBLACK);
 989     //dc.SetFont(*wxNORMAL_FONT);
 990
 991     y += m_heightRow;
 992     wxDateTime date = GetStartDate();
 993
 994 #if DEBUG_PAINT
 995     wxLogDebug("starting calendar from %s\n",
 996             date.Format("%a %d-%m-%Y %H:%M:%S").c_str());
 997 #endif
 998
 999     dc.SetBackgroundMode(wxSOLID);
1000     for ( size_t nWeek = 1; nWeek <= 6; nWeek++, y += m_heightRow )
1001     {
1002         // if the update region doesn't intersect this row, don't paint it
1003         if ( !IsExposed(0, y, 7*m_widthCol, m_heightRow - 1) )
1004         {
1005             date += wxDateSpan::Week();
1006
1007             continue;
1008         }
1009
1010 #if DEBUG_PAINT
1011         wxLogDebug("painting week %d at y = %d\n", nWeek, y);
1012 #endif
1013
1014         for ( size_t wd = 0; wd < 7; wd++ )
1015         {
1016             if ( IsDateShown(date) )
1017             {
1018                 // don't use wxDate::Format() which prepends 0s
1019                 unsigned int day = date.GetDay();
1020                 wxString dayStr = wxString::Format(_T("%u"), day);
1021                 wxCoord width;
1022                 dc.GetTextExtent(dayStr, &width, (wxCoord *)NULL);
1023
1024                 bool changedColours = FALSE,
1025                      changedFont = FALSE;
1026
1027                 bool isSel = FALSE;
1028                 wxCalendarDateAttr *attr = NULL;
1029
1030                 if ( date.GetMonth() != m_date.GetMonth() || !IsDateInRange(date) )
1031                 {
1032                     // surrounding week or out-of-range
1033                     // draw "disabled"
1034                     dc.SetTextForeground(*wxLIGHT_GREY);
1035                     changedColours = TRUE;
1036                 }
1037                 else
1038                 {
1039                     isSel = date.IsSameDate(m_date);
1040                     attr = m_attrs[day - 1];
1041
1042                     if ( isSel )
1043                     {
1044                         dc.SetTextForeground(m_colHighlightFg);
1045                         dc.SetTextBackground(m_colHighlightBg);
1046
1047                         changedColours = TRUE;
1048                     }
1049                     else if ( attr )
1050                     {
1051                         wxColour colFg, colBg;
1052
1053                         if ( attr->IsHoliday() )
1054                         {
1055                             colFg = m_colHolidayFg;
1056                             colBg = m_colHolidayBg;
1057                         }
1058                         else
1059                         {
1060                             colFg = attr->GetTextColour();
1061                             colBg = attr->GetBackgroundColour();
1062                         }
1063
1064                         if ( colFg.Ok() )
1065                         {
1066                             dc.SetTextForeground(colFg);
1067                             changedColours = TRUE;
1068                         }
1069
1070                         if ( colBg.Ok() )
1071                         {
1072                             dc.SetTextBackground(colBg);
1073                             changedColours = TRUE;
1074                         }
1075
1076                         if ( attr->HasFont() )
1077                         {
1078                             dc.SetFont(attr->GetFont());
1079                             changedFont = TRUE;
1080                         }
1081                     }
1082                 }
1083
1084                 wxCoord x = wd*m_widthCol + (m_widthCol - width) / 2;
1085                 dc.DrawText(dayStr, x, y + 1);
1086
1087                 if ( !isSel && attr && attr->HasBorder() )
1088                 {
1089                     wxColour colBorder;
1090                     if ( attr->HasBorderColour() )
1091                     {
1092                         colBorder = attr->GetBorderColour();
1093                     }
1094                     else
1095                     {
1096                         colBorder = m_foregroundColour;
1097                     }
1098
1099                     wxPen pen(colBorder, 1, wxSOLID);
1100                     dc.SetPen(pen);
1101                     dc.SetBrush(*wxTRANSPARENT_BRUSH);
1102
1103                     switch ( attr->GetBorder() )
1104                     {
1105                         case wxCAL_BORDER_SQUARE:
1106                             dc.DrawRectangle(x - 2, y,
1107                                              width + 4, m_heightRow);
1108                             break;
1109
1110                         case wxCAL_BORDER_ROUND:
1111                             dc.DrawEllipse(x - 2, y,
1112                                            width + 4, m_heightRow);
1113                             break;
1114
1115                         default:
1116                             wxFAIL_MSG(_T("unknown border type"));
1117                     }
1118                 }
1119
1120                 if ( changedColours )
1121                 {
1122                     dc.SetTextForeground(m_foregroundColour);
1123                     dc.SetTextBackground(m_backgroundColour);
1124                 }
1125
1126                 if ( changedFont )
1127                 {
1128                     dc.SetFont(m_font);
1129                 }
1130             }
1131             //else: just don't draw it
1132
1133             date += wxDateSpan::Day();
1134         }
1135     }
1136
1137     // Greying out out-of-range background
1138     bool showSurrounding = (GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) != 0;
1139
1140     date = ( showSurrounding ) ? GetStartDate() : wxDateTime(1, m_date.GetMonth(), m_date.GetYear());
1141     if ( !IsDateInRange(date) )
1142     {
1143         wxDateTime firstOOR = GetLowerDateLimit() - wxDateSpan::Day(); // first out-of-range
1144
1145         wxBrush oorbrush = *wxLIGHT_GREY_BRUSH;
1146         oorbrush.SetStyle(wxFDIAGONAL_HATCH);
1147
1148         HighlightRange(&dc, date, firstOOR, wxTRANSPARENT_PEN, &oorbrush);
1149     }
1150
1151     date = ( showSurrounding ) ? GetStartDate() + wxDateSpan::Weeks(6) - wxDateSpan::Day() : wxDateTime().SetToLastMonthDay(m_date.GetMonth(), m_date.GetYear());
1152     if ( !IsDateInRange(date) )
1153     {
1154         wxDateTime firstOOR = GetUpperDateLimit() + wxDateSpan::Day(); // first out-of-range
1155
1156         wxBrush oorbrush = *wxLIGHT_GREY_BRUSH;
1157         oorbrush.SetStyle(wxFDIAGONAL_HATCH);
1158
1159         HighlightRange(&dc, firstOOR, date, wxTRANSPARENT_PEN, &oorbrush);
1160     }
1161
1162 #if DEBUG_PAINT
1163     wxLogDebug("+++ finished painting");
1164 #endif
1165 }
1166
1167 void wxCalendarCtrl::RefreshDate(const wxDateTime& date)
1168 {
1169     RecalcGeometry();
1170
1171     wxRect rect;
1172
1173     // always refresh the whole row at once because our OnPaint() will draw
1174     // the whole row anyhow - and this allows the small optimisation in
1175     // OnClick() below to work
1176     rect.x = 0;
1177
1178     rect.y = (m_heightRow * GetWeek(date)) + m_rowOffset;
1179
1180     rect.width = 7*m_widthCol;
1181     rect.height = m_heightRow;
1182
1183 #ifdef __WXMSW__
1184     // VZ: for some reason, the selected date seems to occupy more space under
1185     //     MSW - this is probably some bug in the font size calculations, but I
1186     //     don't know where exactly. This fix is ugly and leads to more
1187     //     refreshes than really needed, but without it the selected days
1188     //     leaves even more ugly underscores on screen.
1189     rect.Inflate(0, 1);
1190 #endif // MSW
1191
1192 #if DEBUG_PAINT
1193     wxLogDebug("*** refreshing week %d at (%d, %d)-(%d, %d)\n",
1194            GetWeek(date),
1195            rect.x, rect.y,
1196            rect.x + rect.width, rect.y + rect.height);
1197 #endif
1198
1199     Refresh(TRUE, &rect);
1200 }
1201
1202 void wxCalendarCtrl::HighlightRange(wxPaintDC* pDC, const wxDateTime& fromdate, const wxDateTime& todate, wxPen* pPen, wxBrush* pBrush)
1203 {
1204     // Highlights the given range using pen and brush
1205     // Does nothing if todate < fromdate
1206
1207
1208 #if DEBUG_PAINT
1209     wxLogDebug("+++ HighlightRange: (%s) - (%s) +++", fromdate.Format("%d %m %Y"), todate.Format("%d %m %Y"));
1210 #endif
1211
1212     if ( todate >= fromdate )
1213     {
1214         // do stuff
1215         // date-coordinates
1216         int fd, fw;
1217         int td, tw;
1218
1219         // implicit: both dates must be currently shown - checked by GetDateCoord
1220         if ( GetDateCoord(fromdate, &fd, &fw) && GetDateCoord(todate, &td, &tw) )
1221         {
1222 #if DEBUG_PAINT
1223             wxLogDebug("Highlight range: (%i, %i) - (%i, %i)", fd, fw, td, tw);
1224 #endif
1225             if ( ( (tw - fw) == 1 ) && ( td < fd ) )
1226             {
1227                 // special case: interval 7 days or less not in same week
1228                 // split in two seperate intervals
1229                 wxDateTime tfd = fromdate + wxDateSpan::Days(7-fd);
1230                 wxDateTime ftd = tfd + wxDateSpan::Day();
1231 #if DEBUG_PAINT
1232                 wxLogDebug("Highlight: Seperate segments");
1233 #endif
1234                 // draw seperately
1235                 HighlightRange(pDC, fromdate, tfd, pPen, pBrush);
1236                 HighlightRange(pDC, ftd, todate, pPen, pBrush);
1237             }
1238             else
1239             {
1240                 int numpoints;
1241                 wxPoint corners[8]; // potentially 8 corners in polygon
1242
1243                 if ( fw == tw )
1244                 {
1245                     // simple case: same week
1246                     numpoints = 4;
1247                     corners[0] = wxPoint((fd - 1) * m_widthCol, (fw * m_heightRow) + m_rowOffset);
1248                     corners[1] = wxPoint((fd - 1) * m_widthCol, ((fw + 1 ) * m_heightRow) + m_rowOffset);
1249                     corners[2] = wxPoint(td * m_widthCol, ((tw + 1) * m_heightRow) + m_rowOffset);
1250                     corners[3] = wxPoint(td * m_widthCol, (tw * m_heightRow) + m_rowOffset);
1251                 }
1252                 else
1253                 {
1254                     int cidx = 0;
1255                     // "complex" polygon
1256                     corners[cidx] = wxPoint((fd - 1) * m_widthCol, (fw * m_heightRow) + m_rowOffset); cidx++;
1257
1258                     if ( fd > 1 )
1259                     {
1260                         corners[cidx] = wxPoint((fd - 1) * m_widthCol, ((fw + 1) * m_heightRow) + m_rowOffset); cidx++;
1261                         corners[cidx] = wxPoint(0, ((fw + 1) * m_heightRow) + m_rowOffset); cidx++;
1262                     }
1263
1264                     corners[cidx] = wxPoint(0, ((tw + 1) * m_heightRow) + m_rowOffset); cidx++;
1265                     corners[cidx] = wxPoint(td * m_widthCol, ((tw + 1) * m_heightRow) + m_rowOffset); cidx++;
1266
1267                     if ( td < 7 )
1268                     {
1269                         corners[cidx] = wxPoint(td * m_widthCol, (tw * m_heightRow) + m_rowOffset); cidx++;
1270                         corners[cidx] = wxPoint(7 * m_widthCol, (tw * m_heightRow) + m_rowOffset); cidx++;
1271                     }
1272
1273                     corners[cidx] = wxPoint(7 * m_widthCol, (fw * m_heightRow) + m_rowOffset); cidx++;
1274
1275                     numpoints = cidx;
1276                 }
1277
1278                 // draw the polygon
1279                 pDC->SetBrush(*pBrush);
1280                 pDC->SetPen(*pPen);
1281                 pDC->DrawPolygon(numpoints, corners);
1282             }
1283         }
1284     }
1285     // else do nothing
1286 #if DEBUG_PAINT
1287     wxLogDebug("--- HighlightRange ---");
1288 #endif
1289 }
1290
1291 bool wxCalendarCtrl::GetDateCoord(const wxDateTime& date, int *day, int *week) const
1292 {
1293     bool retval = TRUE;
1294
1295 #if DEBUG_PAINT
1296     wxLogDebug("+++ GetDateCoord: (%s) +++", date.Format("%d %m %Y"));
1297 #endif
1298
1299     if ( IsDateShown(date) )
1300     {
1301         bool startOnMonday = ( GetWindowStyle() & wxCAL_MONDAY_FIRST ) != 0;
1302
1303         // Find day
1304         *day = date.GetWeekDay();
1305
1306         if ( *day == 0 ) // sunday
1307         {
1308             *day = ( startOnMonday ) ? 7 : 1;
1309         }
1310         else
1311         {
1312             day += ( startOnMonday ) ? 0 : 1;
1313         }
1314
1315         int targetmonth = date.GetMonth() + (12 * date.GetYear());
1316         int thismonth = m_date.GetMonth() + (12 * m_date.GetYear());
1317
1318         // Find week
1319         if ( targetmonth == thismonth )
1320         {
1321             *week = GetWeek(date);
1322         }
1323         else
1324         {
1325             if ( targetmonth < thismonth )
1326             {
1327                 *week = 1; // trivial
1328             }
1329             else // targetmonth > thismonth
1330             {
1331                 wxDateTime ldcm;
1332                 int lastweek;
1333                 int lastday;
1334
1335                 // get the datecoord of the last day in the month currently shown
1336 #if DEBUG_PAINT
1337                 wxLogDebug("     +++ LDOM +++");
1338 #endif
1339                 GetDateCoord(ldcm.SetToLastMonthDay(m_date.GetMonth(), m_date.GetYear()), &lastday, &lastweek);
1340 #if DEBUG_PAINT
1341                 wxLogDebug("     --- LDOM ---");
1342 #endif
1343
1344                 wxTimeSpan span = date - ldcm;
1345
1346                 int daysfromlast = span.GetDays();
1347 #if DEBUG_PAINT
1348                 wxLogDebug("daysfromlast: %i", daysfromlast);
1349 #endif
1350                 if ( daysfromlast + lastday > 7 ) // past week boundary
1351                 {
1352                     int wholeweeks = (daysfromlast / 7);
1353                     *week = wholeweeks + lastweek;
1354                     if ( (daysfromlast - (7 * wholeweeks) + lastday) > 7 )
1355                     {
1356                         *week += 1;
1357                     }
1358                 }
1359                 else
1360                 {
1361                     *week = lastweek;
1362                 }
1363             }
1364         }
1365     }
1366     else
1367     {
1368         *day = -1;
1369         *week = -1;
1370         retval = FALSE;
1371     }
1372
1373 #if DEBUG_PAINT
1374     wxLogDebug("--- GetDateCoord: (%s) = (%i, %i) ---", date.Format("%d %m %Y"), *day, *week);
1375 #endif
1376
1377     return retval;
1378 }
1379
1380 // ----------------------------------------------------------------------------
1381 // mouse handling
1382 // ----------------------------------------------------------------------------
1383
1384 void wxCalendarCtrl::OnDClick(wxMouseEvent& event)
1385 {
1386     if ( HitTest(event.GetPosition()) != wxCAL_HITTEST_DAY )
1387     {
1388         event.Skip();
1389     }
1390     else
1391     {
1392         GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED);
1393     }
1394 }
1395
1396 void wxCalendarCtrl::OnClick(wxMouseEvent& event)
1397 {
1398     wxDateTime date;
1399     wxDateTime::WeekDay wday;
1400     switch ( HitTest(event.GetPosition(), &date, &wday) )
1401     {
1402         case wxCAL_HITTEST_DAY:
1403             if ( IsDateInRange(date) )
1404             {
1405                 ChangeDay(date);
1406
1407                 GenerateEvents(wxEVT_CALENDAR_DAY_CHANGED,
1408                                wxEVT_CALENDAR_SEL_CHANGED);
1409             }
1410             break;
1411
1412         case wxCAL_HITTEST_HEADER:
1413             {
1414                 wxCalendarEvent event(this, wxEVT_CALENDAR_WEEKDAY_CLICKED);
1415                 event.m_wday = wday;
1416                 (void)GetEventHandler()->ProcessEvent(event);
1417             }
1418             break;
1419
1420         case wxCAL_HITTEST_DECMONTH:
1421         case wxCAL_HITTEST_INCMONTH:
1422         case wxCAL_HITTEST_SURROUNDING_WEEK:
1423             SetDateAndNotify(date); // we probably only want to refresh the control. No notification.. (maybe as an option?)
1424             break;
1425
1426         default:
1427             wxFAIL_MSG(_T("unknown hittest code"));
1428             // fall through
1429
1430         case wxCAL_HITTEST_NOWHERE:
1431             event.Skip();
1432             break;
1433     }
1434 }
1435
1436 wxCalendarHitTestResult wxCalendarCtrl::HitTest(const wxPoint& pos,
1437                                                 wxDateTime *date,
1438                                                 wxDateTime::WeekDay *wd)
1439 {
1440     RecalcGeometry();
1441
1442     wxCoord y = pos.y;
1443
1444 ///////////////////////////////////////////////////////////////////////////////////////////////////////
1445     if ( (GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
1446     {
1447         // Header: month
1448
1449         // we need to find out if the hit is on left arrow, on month or on right arrow
1450         // left arrow?
1451         if ( wxRegion(m_leftArrowRect).Contains(pos) == wxInRegion )
1452         {
1453             if ( date )
1454             {
1455                 if ( IsDateInRange(m_date - wxDateSpan::Month()) )
1456                 {
1457                     *date = m_date - wxDateSpan::Month();
1458                 }
1459                 else
1460                 {
1461                     *date = GetLowerDateLimit();
1462                 }
1463             }
1464
1465             return wxCAL_HITTEST_DECMONTH;
1466         }
1467
1468         if ( wxRegion(m_rightArrowRect).Contains(pos) == wxInRegion )
1469         {
1470             if ( date )
1471             {
1472                 if ( IsDateInRange(m_date + wxDateSpan::Month()) )
1473                 {
1474                     *date = m_date + wxDateSpan::Month();
1475                 }
1476                 else
1477                 {
1478                     *date = GetUpperDateLimit();
1479                 }
1480             }
1481
1482             return wxCAL_HITTEST_INCMONTH;
1483         }
1484
1485     }
1486
1487 ///////////////////////////////////////////////////////////////////////////////////////////////////////
1488     // Header: Days
1489     int wday = pos.x / m_widthCol;
1490 //    if ( y < m_heightRow )
1491     if ( y < (m_heightRow + m_rowOffset) )
1492     {
1493         if ( y > m_rowOffset )
1494         {
1495             if ( wd )
1496             {
1497                 if ( GetWindowStyle() & wxCAL_MONDAY_FIRST )
1498                 {
1499                     wday = wday == 6 ? 0 : wday + 1;
1500                 }
1501
1502                 *wd = (wxDateTime::WeekDay)wday;
1503             }
1504
1505             return wxCAL_HITTEST_HEADER;
1506         }
1507         else
1508         {
1509             return wxCAL_HITTEST_NOWHERE;
1510         }
1511     }
1512
1513 //    int week = (y - m_heightRow) / m_heightRow;
1514     int week = (y - (m_heightRow + m_rowOffset)) / m_heightRow;
1515     if ( week >= 6 || wday >= 7 )
1516     {
1517         return wxCAL_HITTEST_NOWHERE;
1518     }
1519
1520     wxDateTime dt = GetStartDate() + wxDateSpan::Days(7*week + wday);
1521
1522     if ( IsDateShown(dt) )
1523     {
1524         if ( date )
1525             *date = dt;
1526
1527         if ( dt.GetMonth() == m_date.GetMonth() )
1528         {
1529
1530             return wxCAL_HITTEST_DAY;
1531         }
1532         else
1533         {
1534             return wxCAL_HITTEST_SURROUNDING_WEEK;
1535         }
1536     }
1537     else
1538     {
1539         return wxCAL_HITTEST_NOWHERE;
1540     }
1541 }
1542
1543 // ----------------------------------------------------------------------------
1544 // subcontrols events handling
1545 // ----------------------------------------------------------------------------
1546
1547 void wxCalendarCtrl::OnMonthChange(wxCommandEvent& event)
1548 {
1549     wxDateTime::Tm tm = m_date.GetTm();
1550
1551     wxDateTime::Month mon = (wxDateTime::Month)event.GetInt();
1552     if ( tm.mday > wxDateTime::GetNumberOfDays(mon, tm.year) )
1553     {
1554         tm.mday = wxDateTime::GetNumberOfDays(mon, tm.year);
1555     }
1556
1557     wxDateTime target = wxDateTime(tm.mday, mon, tm.year);
1558
1559     ChangeMonth(&target);
1560     SetDateAndNotify(target);
1561 }
1562
1563 void wxCalendarCtrl::OnYearChange(wxCommandEvent& event)
1564 {
1565     int year = (int)event.GetInt();
1566     if ( year == INT_MIN )
1567     {
1568         // invalid year in the spin control, ignore it
1569         return;
1570     }
1571
1572     // set the flag for SetDate(): otherwise it would overwrite the year
1573     // typed in by the user
1574     m_userChangedYear = TRUE;
1575
1576     wxDateTime::Tm tm = m_date.GetTm();
1577
1578     if ( tm.mday > wxDateTime::GetNumberOfDays(tm.mon, year) )
1579     {
1580         tm.mday = wxDateTime::GetNumberOfDays(tm.mon, year);
1581     }
1582
1583     wxDateTime target = wxDateTime(tm.mday, tm.mon, year);
1584
1585     if ( ChangeYear(&target) )
1586     {
1587         SetDateAndNotify(target);
1588     }
1589     else
1590     {
1591         // In this case we don't want to change the date. That would put us
1592         // inside the same year but a strange number of months forward/back..
1593         m_spinYear->SetValue(target.GetYear());
1594     }
1595 }
1596
1597 // ----------------------------------------------------------------------------
1598 // keyboard interface
1599 // ----------------------------------------------------------------------------
1600
1601 void wxCalendarCtrl::OnChar(wxKeyEvent& event)
1602 {
1603     wxDateTime target;
1604     switch ( event.GetKeyCode() )
1605     {
1606         case _T('+'):
1607         case WXK_ADD:
1608             target = m_date + wxDateSpan::Year();
1609             if ( ChangeYear(&target) )
1610             {
1611                 SetDateAndNotify(target);
1612             }
1613             break;
1614
1615         case _T('-'):
1616         case WXK_SUBTRACT:
1617             target = m_date - wxDateSpan::Year();
1618             if ( ChangeYear(&target) )
1619             {
1620                 SetDateAndNotify(target);
1621             }
1622             break;
1623
1624         case WXK_PRIOR:
1625             target = m_date - wxDateSpan::Month();
1626             ChangeMonth(&target);
1627             SetDateAndNotify(target); // always
1628             break;
1629
1630         case WXK_NEXT:
1631             target = m_date + wxDateSpan::Month();
1632             ChangeMonth(&target);
1633             SetDateAndNotify(target); // always
1634             break;
1635
1636         case WXK_RIGHT:
1637             if ( event.ControlDown() )
1638             {
1639                 target = wxDateTime(m_date).SetToNextWeekDay(
1640                                  GetWindowStyle() & wxCAL_MONDAY_FIRST
1641                                  ? wxDateTime::Sun : wxDateTime::Sat);
1642                 if ( !IsDateInRange(target) )
1643                 {
1644                     target = GetUpperDateLimit();
1645                 }
1646                 SetDateAndNotify(target);
1647             }
1648             else
1649                 SetDateAndNotify(m_date + wxDateSpan::Day());
1650             break;
1651
1652         case WXK_LEFT:
1653             if ( event.ControlDown() )
1654             {
1655                 target = wxDateTime(m_date).SetToPrevWeekDay(
1656                                  GetWindowStyle() & wxCAL_MONDAY_FIRST
1657                                  ? wxDateTime::Mon : wxDateTime::Sun);
1658                 if ( !IsDateInRange(target) )
1659                 {
1660                     target = GetLowerDateLimit();
1661                 }
1662                 SetDateAndNotify(target);
1663             }
1664             else
1665                 SetDateAndNotify(m_date - wxDateSpan::Day());
1666             break;
1667
1668         case WXK_UP:
1669             SetDateAndNotify(m_date - wxDateSpan::Week());
1670             break;
1671
1672         case WXK_DOWN:
1673             SetDateAndNotify(m_date + wxDateSpan::Week());
1674             break;
1675
1676         case WXK_HOME:
1677             if ( event.ControlDown() )
1678                 SetDateAndNotify(wxDateTime::Today());
1679             else
1680                 SetDateAndNotify(wxDateTime(1, m_date.GetMonth(), m_date.GetYear()));
1681             break;
1682
1683         case WXK_END:
1684             SetDateAndNotify(wxDateTime(m_date).SetToLastMonthDay());
1685             break;
1686
1687         case WXK_RETURN:
1688             GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED);
1689             break;
1690
1691         default:
1692             event.Skip();
1693     }
1694 }
1695
1696 // ----------------------------------------------------------------------------
1697 // holidays handling
1698 // ----------------------------------------------------------------------------
1699
1700 void wxCalendarCtrl::EnableHolidayDisplay(bool display)
1701 {
1702     long style = GetWindowStyle();
1703     if ( display )
1704         style |= wxCAL_SHOW_HOLIDAYS;
1705     else
1706         style &= ~wxCAL_SHOW_HOLIDAYS;
1707
1708     SetWindowStyle(style);
1709
1710     if ( display )
1711         SetHolidayAttrs();
1712     else
1713         ResetHolidayAttrs();
1714
1715     Refresh();
1716 }
1717
1718 void wxCalendarCtrl::SetHolidayAttrs()
1719 {
1720     if ( GetWindowStyle() & wxCAL_SHOW_HOLIDAYS )
1721     {
1722         ResetHolidayAttrs();
1723
1724         wxDateTime::Tm tm = m_date.GetTm();
1725         wxDateTime dtStart(1, tm.mon, tm.year),
1726                    dtEnd = dtStart.GetLastMonthDay();
1727
1728         wxDateTimeArray hol;
1729         wxDateTimeHolidayAuthority::GetHolidaysInRange(dtStart, dtEnd, hol);
1730
1731         size_t count = hol.GetCount();
1732         for ( size_t n = 0; n < count; n++ )
1733         {
1734             SetHoliday(hol[n].GetDay());
1735         }
1736     }
1737 }
1738
1739 void wxCalendarCtrl::SetHoliday(size_t day)
1740 {
1741     wxCHECK_RET( day > 0 && day < 32, _T("invalid day in SetHoliday") );
1742
1743     wxCalendarDateAttr *attr = GetAttr(day);
1744     if ( !attr )
1745     {
1746         attr = new wxCalendarDateAttr;
1747     }
1748
1749     attr->SetHoliday(TRUE);
1750
1751     // can't use SetAttr() because it would delete this pointer
1752     m_attrs[day - 1] = attr;
1753 }
1754
1755 void wxCalendarCtrl::ResetHolidayAttrs()
1756 {
1757     for ( size_t day = 0; day < 31; day++ )
1758     {
1759         if ( m_attrs[day] )
1760         {
1761             m_attrs[day]->SetHoliday(FALSE);
1762         }
1763     }
1764 }
1765
1766 // ----------------------------------------------------------------------------
1767 // wxCalendarEvent
1768 // ----------------------------------------------------------------------------
1769
1770 void wxCalendarEvent::Init()
1771 {
1772     m_wday = wxDateTime::Inv_WeekDay;
1773 }
1774
1775 wxCalendarEvent::wxCalendarEvent(wxCalendarCtrl *cal, wxEventType type)
1776                : wxCommandEvent(type, cal->GetId())
1777 {
1778     m_date = cal->GetDate();
1779     SetEventObject(cal);
1780 }
1781
1782 #endif // wxUSE_CALENDARCTRL
1783