src/generic/calctrl.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/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 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/dcclient.h"
  29     #include "wx/settings.h"
  30     #include "wx/brush.h"
  31     #include "wx/combobox.h"
  32     #include "wx/listbox.h"
  33     #include "wx/stattext.h"
  34     #include "wx/textctrl.h"
  35 #endif //WX_PRECOMP
  36
  37 #if wxUSE_CALENDARCTRL
  38
  39 #include "wx/spinctrl.h"
  40
  41 // if wxDatePickerCtrl code doesn't define the date event, do it here as we
  42 // need it as well
  43 #if !wxUSE_DATEPICKCTRL
  44     #define _WX_DEFINE_DATE_EVENTS_
  45 #endif
  46
  47 #include "wx/calctrl.h"
  48
  49 #define DEBUG_PAINT 0
  50
  51 // ----------------------------------------------------------------------------
  52 // wxWin macros
  53 // ----------------------------------------------------------------------------
  54
  55 BEGIN_EVENT_TABLE(wxCalendarCtrl, wxControl)
  56     EVT_PAINT(wxCalendarCtrl::OnPaint)
  57
  58     EVT_CHAR(wxCalendarCtrl::OnChar)
  59
  60     EVT_LEFT_DOWN(wxCalendarCtrl::OnClick)
  61     EVT_LEFT_DCLICK(wxCalendarCtrl::OnDClick)
  62
  63     EVT_SYS_COLOUR_CHANGED(wxCalendarCtrl::OnSysColourChanged)
  64 END_EVENT_TABLE()
  65
  66 #if wxUSE_EXTENDED_RTTI
  67 WX_DEFINE_FLAGS( wxCalendarCtrlStyle )
  68
  69 wxBEGIN_FLAGS( wxCalendarCtrlStyle )
  70     // new style border flags, we put them first to
  71     // use them for streaming out
  72     wxFLAGS_MEMBER(wxBORDER_SIMPLE)
  73     wxFLAGS_MEMBER(wxBORDER_SUNKEN)
  74     wxFLAGS_MEMBER(wxBORDER_DOUBLE)
  75     wxFLAGS_MEMBER(wxBORDER_RAISED)
  76     wxFLAGS_MEMBER(wxBORDER_STATIC)
  77     wxFLAGS_MEMBER(wxBORDER_NONE)
  78
  79     // old style border flags
  80     wxFLAGS_MEMBER(wxSIMPLE_BORDER)
  81     wxFLAGS_MEMBER(wxSUNKEN_BORDER)
  82     wxFLAGS_MEMBER(wxDOUBLE_BORDER)
  83     wxFLAGS_MEMBER(wxRAISED_BORDER)
  84     wxFLAGS_MEMBER(wxSTATIC_BORDER)
  85     wxFLAGS_MEMBER(wxBORDER)
  86
  87     // standard window styles
  88     wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
  89     wxFLAGS_MEMBER(wxCLIP_CHILDREN)
  90     wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
  91     wxFLAGS_MEMBER(wxWANTS_CHARS)
  92     wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
  93     wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
  94     wxFLAGS_MEMBER(wxVSCROLL)
  95     wxFLAGS_MEMBER(wxHSCROLL)
  96
  97     wxFLAGS_MEMBER(wxCAL_SUNDAY_FIRST)
  98     wxFLAGS_MEMBER(wxCAL_MONDAY_FIRST)
  99     wxFLAGS_MEMBER(wxCAL_SHOW_HOLIDAYS)
 100     wxFLAGS_MEMBER(wxCAL_NO_YEAR_CHANGE)
 101     wxFLAGS_MEMBER(wxCAL_NO_MONTH_CHANGE)
 102     wxFLAGS_MEMBER(wxCAL_SEQUENTIAL_MONTH_SELECTION)
 103     wxFLAGS_MEMBER(wxCAL_SHOW_SURROUNDING_WEEKS)
 104
 105 wxEND_FLAGS( wxCalendarCtrlStyle )
 106
 107 IMPLEMENT_DYNAMIC_CLASS_XTI(wxCalendarCtrl, wxControl,"wx/calctrl.h")
 108
 109 wxBEGIN_PROPERTIES_TABLE(wxCalendarCtrl)
 110     wxEVENT_RANGE_PROPERTY( Updated , wxEVT_CALENDAR_SEL_CHANGED , wxEVT_CALENDAR_WEEKDAY_CLICKED , wxCalendarEvent )
 111     wxHIDE_PROPERTY( Children )
 112     wxPROPERTY( Date,wxDateTime, SetDate , GetDate, , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
 113     wxPROPERTY_FLAGS( WindowStyle , wxCalendarCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
 114 wxEND_PROPERTIES_TABLE()
 115
 116 wxBEGIN_HANDLERS_TABLE(wxCalendarCtrl)
 117 wxEND_HANDLERS_TABLE()
 118
 119 wxCONSTRUCTOR_6( wxCalendarCtrl , wxWindow* , Parent , wxWindowID , Id , wxDateTime , Date , wxPoint , Position , wxSize , Size , long , WindowStyle )
 120 #else
 121 IMPLEMENT_DYNAMIC_CLASS(wxCalendarCtrl, wxControl)
 122 #endif
 123 IMPLEMENT_DYNAMIC_CLASS(wxCalendarEvent, wxDateEvent)
 124
 125 // ----------------------------------------------------------------------------
 126 // events
 127 // ----------------------------------------------------------------------------
 128
 129 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_SEL_CHANGED)
 130 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_DAY_CHANGED)
 131 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_MONTH_CHANGED)
 132 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_YEAR_CHANGED)
 133 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_DOUBLECLICKED)
 134 DEFINE_EVENT_TYPE(wxEVT_CALENDAR_WEEKDAY_CLICKED)
 135
 136 // ============================================================================
 137 // implementation
 138 // ============================================================================
 139
 140 // ----------------------------------------------------------------------------
 141 // wxCalendarCtrl
 142 // ----------------------------------------------------------------------------
 143
 144 wxCalendarCtrl::wxCalendarCtrl(wxWindow *parent,
 145                    wxWindowID id,
 146                    const wxDateTime& date,
 147                    const wxPoint& pos,
 148                    const wxSize& size,
 149                    long style,
 150                    const wxString& name)
 151 {
 152     Init();
 153
 154     (void)Create(parent, id, date, pos, size, style, name);
 155 }
 156
 157 void wxCalendarCtrl::Init()
 158 {
 159     m_comboMonth = NULL;
 160     m_spinYear = NULL;
 161     m_staticYear = NULL;
 162     m_staticMonth = NULL;
 163
 164     m_userChangedYear = false;
 165
 166     m_widthCol =
 167     m_heightRow = 0;
 168
 169     wxDateTime::WeekDay wd;
 170     for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
 171     {
 172         m_weekdays[wd] = wxDateTime::GetWeekDayName(wd, wxDateTime::Name_Abbr);
 173     }
 174
 175     for ( size_t n = 0; n < WXSIZEOF(m_attrs); n++ )
 176     {
 177         m_attrs[n] = NULL;
 178     }
 179
 180     InitColours();
 181 }
 182
 183 void wxCalendarCtrl::InitColours()
 184 {
 185     m_colHighlightFg = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
 186     m_colHighlightBg = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
 187     m_colBackground = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
 188     m_colSorrounding = wxSystemSettings::GetColour(wxSYS_COLOUR_GRAYTEXT);
 189
 190     m_colHolidayFg = *wxRED;
 191     // don't set m_colHolidayBg - by default, same as our bg colour
 192
 193     m_colHeaderFg = *wxBLUE;
 194     m_colHeaderBg = *wxLIGHT_GREY;
 195 }
 196
 197 bool wxCalendarCtrl::Create(wxWindow *parent,
 198                             wxWindowID id,
 199                             const wxDateTime& date,
 200                             const wxPoint& pos,
 201                             const wxSize& size,
 202                             long style,
 203                             const wxString& name)
 204 {
 205     if ( !wxControl::Create(parent, id, pos, size,
 206                             style | wxCLIP_CHILDREN | wxWANTS_CHARS | wxFULL_REPAINT_ON_RESIZE,
 207                             wxDefaultValidator, name) )
 208     {
 209         return false;
 210     }
 211
 212     // needed to get the arrow keys normally used for the dialog navigation
 213     SetWindowStyle(style | wxWANTS_CHARS);
 214
 215     m_date = date.IsValid() ? date : wxDateTime::Today();
 216
 217     m_lowdate = wxDefaultDateTime;
 218     m_highdate = wxDefaultDateTime;
 219
 220     if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 221     {
 222         CreateYearSpinCtrl();
 223         m_staticYear = new wxStaticText(GetParent(), wxID_ANY, m_date.Format(_T("%Y")),
 224                                         wxDefaultPosition, wxDefaultSize,
 225                                         wxALIGN_CENTRE);
 226
 227         CreateMonthComboBox();
 228         m_staticMonth = new wxStaticText(GetParent(), wxID_ANY, m_date.Format(_T("%B")),
 229                                          wxDefaultPosition, wxDefaultSize,
 230                                          wxALIGN_CENTRE);
 231     }
 232
 233     ShowCurrentControls();
 234
 235     // we need to set the position as well because the main control position
 236     // is not the same as the one specified in pos if we have the controls
 237     // above it
 238     SetBestSize(size);
 239     SetPosition(pos);
 240
 241     // Since we don't paint the whole background make sure that the platform
 242     // will use the right one.
 243     SetBackgroundColour(m_colBackground);
 244
 245     SetHolidayAttrs();
 246
 247     return true;
 248 }
 249
 250 wxCalendarCtrl::~wxCalendarCtrl()
 251 {
 252     for ( size_t n = 0; n < WXSIZEOF(m_attrs); n++ )
 253     {
 254         delete m_attrs[n];
 255     }
 256 }
 257
 258 // ----------------------------------------------------------------------------
 259 // Create the wxComboBox and wxSpinCtrl
 260 // ----------------------------------------------------------------------------
 261
 262 void wxCalendarCtrl::CreateMonthComboBox()
 263 {
 264     m_comboMonth = new wxComboBox(GetParent(), wxID_ANY,
 265                                   wxEmptyString,
 266                                   wxDefaultPosition,
 267                                   wxDefaultSize,
 268                                   0, NULL,
 269                                   wxCB_READONLY | wxCLIP_SIBLINGS);
 270
 271     wxDateTime::Month m;
 272     for ( m = wxDateTime::Jan; m < wxDateTime::Inv_Month; wxNextMonth(m) )
 273     {
 274         m_comboMonth->Append(wxDateTime::GetMonthName(m));
 275     }
 276
 277     m_comboMonth->SetSelection(GetDate().GetMonth());
 278     m_comboMonth->SetSize(wxDefaultCoord,
 279                           wxDefaultCoord,
 280                           wxDefaultCoord,
 281                           wxDefaultCoord,
 282                           wxSIZE_AUTO_WIDTH|wxSIZE_AUTO_HEIGHT);
 283
 284     m_comboMonth->Connect(wxEVT_COMMAND_COMBOBOX_SELECTED,
 285                           wxCommandEventHandler(wxCalendarCtrl::OnMonthChange),
 286                           NULL, this);
 287 }
 288
 289 void wxCalendarCtrl::CreateYearSpinCtrl()
 290 {
 291     m_spinYear = new wxSpinCtrl(GetParent(), wxID_ANY,
 292                                 GetDate().Format(_T("%Y")),
 293                                 wxDefaultPosition,
 294                                 wxDefaultSize,
 295                                 wxSP_ARROW_KEYS | wxCLIP_SIBLINGS,
 296                                 -4300, 10000, GetDate().GetYear());
 297
 298     m_spinYear->Connect(wxEVT_COMMAND_TEXT_UPDATED,
 299                         wxCommandEventHandler(wxCalendarCtrl::OnYearTextChange),
 300                         NULL, this);
 301
 302     m_spinYear->Connect(wxEVT_COMMAND_SPINCTRL_UPDATED,
 303                         wxCommandEventHandler(wxCalendarCtrl::OnYearChange),
 304                         NULL, this);
 305 }
 306
 307 // ----------------------------------------------------------------------------
 308 // forward wxWin functions to subcontrols
 309 // ----------------------------------------------------------------------------
 310
 311 bool wxCalendarCtrl::Destroy()
 312 {
 313     if ( m_staticYear )
 314         m_staticYear->Destroy();
 315     if ( m_spinYear )
 316         m_spinYear->Destroy();
 317     if ( m_comboMonth )
 318         m_comboMonth->Destroy();
 319     if ( m_staticMonth )
 320         m_staticMonth->Destroy();
 321
 322     m_staticYear = NULL;
 323     m_spinYear = NULL;
 324     m_comboMonth = NULL;
 325     m_staticMonth = NULL;
 326
 327     return wxControl::Destroy();
 328 }
 329
 330 bool wxCalendarCtrl::Show(bool show)
 331 {
 332     if ( !wxControl::Show(show) )
 333     {
 334         return false;
 335     }
 336
 337     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 338     {
 339         if ( GetMonthControl() )
 340         {
 341             GetMonthControl()->Show(show);
 342             GetYearControl()->Show(show);
 343         }
 344     }
 345
 346     return true;
 347 }
 348
 349 bool wxCalendarCtrl::Enable(bool enable)
 350 {
 351     if ( !wxControl::Enable(enable) )
 352     {
 353         return false;
 354     }
 355
 356     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 357     {
 358         GetMonthControl()->Enable(enable);
 359         GetYearControl()->Enable(enable);
 360     }
 361
 362     return true;
 363 }
 364
 365 // ----------------------------------------------------------------------------
 366 // enable/disable month/year controls
 367 // ----------------------------------------------------------------------------
 368
 369 void wxCalendarCtrl::ShowCurrentControls()
 370 {
 371     if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 372     {
 373         if ( AllowMonthChange() )
 374         {
 375             m_comboMonth->Show();
 376             m_staticMonth->Hide();
 377
 378             if ( AllowYearChange() )
 379             {
 380                 m_spinYear->Show();
 381                 m_staticYear->Hide();
 382
 383                 // skip the rest
 384                 return;
 385             }
 386         }
 387         else
 388         {
 389             m_comboMonth->Hide();
 390             m_staticMonth->Show();
 391         }
 392
 393         // year change not allowed here
 394         m_spinYear->Hide();
 395         m_staticYear->Show();
 396     }
 397 }
 398
 399 wxControl *wxCalendarCtrl::GetMonthControl() const
 400 {
 401     return AllowMonthChange() ? (wxControl *)m_comboMonth : (wxControl *)m_staticMonth;
 402 }
 403
 404 wxControl *wxCalendarCtrl::GetYearControl() const
 405 {
 406     return AllowYearChange() ? (wxControl *)m_spinYear : (wxControl *)m_staticYear;
 407 }
 408
 409 void wxCalendarCtrl::EnableYearChange(bool enable)
 410 {
 411     if ( enable != AllowYearChange() )
 412     {
 413         long style = GetWindowStyle();
 414         if ( enable )
 415             style &= ~wxCAL_NO_YEAR_CHANGE;
 416         else
 417             style |= wxCAL_NO_YEAR_CHANGE;
 418         SetWindowStyle(style);
 419
 420         ShowCurrentControls();
 421         if ( GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION )
 422         {
 423             Refresh();
 424         }
 425     }
 426 }
 427
 428 void wxCalendarCtrl::EnableMonthChange(bool enable)
 429 {
 430     if ( enable != AllowMonthChange() )
 431     {
 432         long style = GetWindowStyle();
 433         if ( enable )
 434             style &= ~wxCAL_NO_MONTH_CHANGE;
 435         else
 436             style |= wxCAL_NO_MONTH_CHANGE;
 437         SetWindowStyle(style);
 438
 439         ShowCurrentControls();
 440         if ( GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION )
 441         {
 442             Refresh();
 443         }
 444     }
 445 }
 446
 447 // ----------------------------------------------------------------------------
 448 // changing date
 449 // ----------------------------------------------------------------------------
 450
 451 bool wxCalendarCtrl::SetDate(const wxDateTime& date)
 452 {
 453     bool retval = true;
 454
 455     bool sameMonth = m_date.GetMonth() == date.GetMonth(),
 456          sameYear = m_date.GetYear() == date.GetYear();
 457
 458     if ( IsDateInRange(date) )
 459     {
 460         if ( sameMonth && sameYear )
 461         {
 462             // just change the day
 463             ChangeDay(date);
 464         }
 465         else
 466         {
 467             if ( AllowMonthChange() && (AllowYearChange() || sameYear) )
 468             {
 469                 // change everything
 470                 m_date = date;
 471
 472                 if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 473                 {
 474                     // update the controls
 475                     m_comboMonth->SetSelection(m_date.GetMonth());
 476
 477                     if ( AllowYearChange() )
 478                     {
 479                         if ( !m_userChangedYear )
 480                             m_spinYear->SetValue(m_date.Format(_T("%Y")));
 481                     }
 482                 }
 483
 484                 // as the month changed, holidays did too
 485                 SetHolidayAttrs();
 486
 487                 // update the calendar
 488                 Refresh();
 489             }
 490             else
 491             {
 492                 // forbidden
 493                 retval = false;
 494             }
 495         }
 496     }
 497
 498     m_userChangedYear = false;
 499
 500     return retval;
 501 }
 502
 503 void wxCalendarCtrl::ChangeDay(const wxDateTime& date)
 504 {
 505     if ( m_date != date )
 506     {
 507         // we need to refresh the row containing the old date and the one
 508         // containing the new one
 509         wxDateTime dateOld = m_date;
 510         m_date = date;
 511
 512         RefreshDate(dateOld);
 513
 514         // if the date is in the same row, it was already drawn correctly
 515         if ( GetWeek(m_date) != GetWeek(dateOld) )
 516         {
 517             RefreshDate(m_date);
 518         }
 519     }
 520 }
 521
 522 void wxCalendarCtrl::SetDateAndNotify(const wxDateTime& date)
 523 {
 524     wxDateTime::Tm tm1 = m_date.GetTm(),
 525                    tm2 = date.GetTm();
 526
 527     wxEventType type;
 528     if ( tm1.year != tm2.year )
 529         type = wxEVT_CALENDAR_YEAR_CHANGED;
 530     else if ( tm1.mon != tm2.mon )
 531         type = wxEVT_CALENDAR_MONTH_CHANGED;
 532     else if ( tm1.mday != tm2.mday )
 533         type = wxEVT_CALENDAR_DAY_CHANGED;
 534     else
 535         return;
 536
 537     if ( SetDate(date) )
 538     {
 539         GenerateEvents(type, wxEVT_CALENDAR_SEL_CHANGED);
 540     }
 541 }
 542
 543 // ----------------------------------------------------------------------------
 544 // date range
 545 // ----------------------------------------------------------------------------
 546
 547 bool wxCalendarCtrl::SetLowerDateLimit(const wxDateTime& date /* = wxDefaultDateTime */)
 548 {
 549     bool retval = true;
 550
 551     if ( !(date.IsValid()) || ( ( m_highdate.IsValid() ) ? ( date <= m_highdate ) : true ) )
 552     {
 553         m_lowdate = date;
 554     }
 555     else
 556     {
 557         retval = false;
 558     }
 559
 560     return retval;
 561 }
 562
 563 bool wxCalendarCtrl::SetUpperDateLimit(const wxDateTime& date /* = wxDefaultDateTime */)
 564 {
 565     bool retval = true;
 566
 567     if ( !(date.IsValid()) || ( ( m_lowdate.IsValid() ) ? ( date >= m_lowdate ) : true ) )
 568     {
 569         m_highdate = date;
 570     }
 571     else
 572     {
 573         retval = false;
 574     }
 575
 576     return retval;
 577 }
 578
 579 bool wxCalendarCtrl::SetDateRange(const wxDateTime& lowerdate /* = wxDefaultDateTime */, const wxDateTime& upperdate /* = wxDefaultDateTime */)
 580 {
 581     bool retval = true;
 582
 583     if (
 584         ( !( lowerdate.IsValid() ) || ( ( upperdate.IsValid() ) ? ( lowerdate <= upperdate ) : true ) ) &&
 585         ( !( upperdate.IsValid() ) || ( ( lowerdate.IsValid() ) ? ( upperdate >= lowerdate ) : true ) ) )
 586     {
 587         m_lowdate = lowerdate;
 588         m_highdate = upperdate;
 589     }
 590     else
 591     {
 592         retval = false;
 593     }
 594
 595     return retval;
 596 }
 597
 598 // ----------------------------------------------------------------------------
 599 // date helpers
 600 // ----------------------------------------------------------------------------
 601
 602 wxDateTime wxCalendarCtrl::GetStartDate() const
 603 {
 604     wxDateTime::Tm tm = m_date.GetTm();
 605
 606     wxDateTime date = wxDateTime(1, tm.mon, tm.year);
 607
 608     // rewind back
 609     date.SetToPrevWeekDay(GetWindowStyle() & wxCAL_MONDAY_FIRST
 610                           ? wxDateTime::Mon : wxDateTime::Sun);
 611
 612     if ( GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS )
 613     {
 614         // We want to offset the calendar if we start on the first..
 615         if ( date.GetDay() == 1 )
 616         {
 617             date -= wxDateSpan::Week();
 618         }
 619     }
 620
 621     return date;
 622 }
 623
 624 bool wxCalendarCtrl::IsDateShown(const wxDateTime& date) const
 625 {
 626     if ( !(GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) )
 627     {
 628         return date.GetMonth() == m_date.GetMonth();
 629     }
 630     else
 631     {
 632         return true;
 633     }
 634 }
 635
 636 bool wxCalendarCtrl::IsDateInRange(const wxDateTime& date) const
 637 {
 638     // Check if the given date is in the range specified
 639     return ( ( ( m_lowdate.IsValid() ) ? ( date >= m_lowdate ) : true )
 640         && ( ( m_highdate.IsValid() ) ? ( date <= m_highdate ) : true ) );
 641 }
 642
 643 bool wxCalendarCtrl::ChangeYear(wxDateTime* target) const
 644 {
 645     bool retval = false;
 646
 647     if ( !(IsDateInRange(*target)) )
 648     {
 649         if ( target->GetYear() < m_date.GetYear() )
 650         {
 651             if ( target->GetYear() >= GetLowerDateLimit().GetYear() )
 652             {
 653                 *target = GetLowerDateLimit();
 654                 retval = true;
 655             }
 656             else
 657             {
 658                 *target = m_date;
 659             }
 660         }
 661         else
 662         {
 663             if ( target->GetYear() <= GetUpperDateLimit().GetYear() )
 664             {
 665                 *target = GetUpperDateLimit();
 666                 retval = true;
 667             }
 668             else
 669             {
 670                 *target = m_date;
 671             }
 672         }
 673     }
 674     else
 675     {
 676         retval = true;
 677     }
 678
 679     return retval;
 680 }
 681
 682 bool wxCalendarCtrl::ChangeMonth(wxDateTime* target) const
 683 {
 684     bool retval = true;
 685
 686     if ( !(IsDateInRange(*target)) )
 687     {
 688         retval = false;
 689
 690         if ( target->GetMonth() < m_date.GetMonth() )
 691         {
 692             *target = GetLowerDateLimit();
 693         }
 694         else
 695         {
 696             *target = GetUpperDateLimit();
 697         }
 698     }
 699
 700     return retval;
 701 }
 702
 703 size_t wxCalendarCtrl::GetWeek(const wxDateTime& date) const
 704 {
 705     size_t retval = date.GetWeekOfMonth(GetWindowStyle() & wxCAL_MONDAY_FIRST
 706                                    ? wxDateTime::Monday_First
 707                                    : wxDateTime::Sunday_First);
 708
 709     if ( (GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) )
 710     {
 711         // we need to offset an extra week if we "start" on the 1st of the month
 712         wxDateTime::Tm tm = date.GetTm();
 713
 714         wxDateTime datetest = wxDateTime(1, tm.mon, tm.year);
 715
 716         // rewind back
 717         datetest.SetToPrevWeekDay(GetWindowStyle() & wxCAL_MONDAY_FIRST
 718                               ? wxDateTime::Mon : wxDateTime::Sun);
 719
 720         if ( datetest.GetDay() == 1 )
 721         {
 722             retval += 1;
 723         }
 724     }
 725
 726     return retval;
 727 }
 728
 729 // ----------------------------------------------------------------------------
 730 // size management
 731 // ----------------------------------------------------------------------------
 732
 733 // this is a composite control and it must arrange its parts each time its
 734 // size or position changes: the combobox and spinctrl are along the top of
 735 // the available area and the calendar takes up therest of the space
 736
 737 // the static controls are supposed to be always smaller than combo/spin so we
 738 // always use the latter for size calculations and position the static to take
 739 // the same space
 740
 741 // the constants used for the layout
 742 #define VERT_MARGIN     5           // distance between combo and calendar
 743 #ifdef __WXMAC__
 744 #define HORZ_MARGIN    5           //                            spin
 745 #else
 746 #define HORZ_MARGIN    15           //                            spin
 747 #endif
 748 wxSize wxCalendarCtrl::DoGetBestSize() const
 749 {
 750     // calc the size of the calendar
 751     ((wxCalendarCtrl *)this)->RecalcGeometry(); // const_cast
 752
 753     wxCoord width = 7*m_widthCol,
 754             height = 7*m_heightRow + m_rowOffset + VERT_MARGIN;
 755
 756     if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 757     {
 758         // the combobox doesn't report its height correctly (it returns the
 759         // height including the drop down list) so don't use it
 760         height += m_spinYear->GetBestSize().y;
 761
 762
 763         wxCoord w2 = m_comboMonth->GetBestSize().x + HORZ_MARGIN + GetCharWidth()*6;
 764         if (width < w2)
 765             width = w2;
 766     }
 767
 768     if ( !HasFlag(wxBORDER_NONE) )
 769     {
 770         // the border would clip the last line otherwise
 771         height += 6;
 772         width += 4;
 773     }
 774
 775     wxSize best(width, height);
 776     CacheBestSize(best);
 777     return best;
 778 }
 779
 780 void wxCalendarCtrl::DoSetSize(int x, int y,
 781                                int width, int height,
 782                                int sizeFlags)
 783 {
 784     wxControl::DoSetSize(x, y, width, height, sizeFlags);
 785 }
 786
 787 void wxCalendarCtrl::DoMoveWindow(int x, int y, int width, int height)
 788 {
 789     int yDiff;
 790
 791     if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) && m_staticMonth )
 792     {
 793         wxSize sizeCombo = m_comboMonth->GetSize();
 794         wxSize sizeStatic = m_staticMonth->GetSize();
 795         wxSize sizeSpin = m_spinYear->GetSize();
 796
 797         // wxMSW sometimes reports the wrong combo height,
 798         // so on this platform we'll use the spin control
 799         // height instead.
 800 #ifdef __WXMSW__
 801         int maxHeight = sizeSpin.y;
 802         int requiredSpinHeight = -1;
 803 #else
 804         int maxHeight = sizeCombo.y;
 805         int requiredSpinHeight = sizeCombo.y;
 806 #endif
 807         int dy = (maxHeight - sizeStatic.y) / 2;
 808         m_comboMonth->Move(x, y);
 809         m_staticMonth->SetSize(x, y + dy, sizeCombo.x, -1, sizeStatic.y);
 810
 811         int xDiff = sizeCombo.x + HORZ_MARGIN;
 812
 813         m_spinYear->SetSize(x + xDiff, y, width - xDiff, requiredSpinHeight);
 814         m_staticYear->SetSize(x + xDiff, y + dy, width - xDiff, sizeStatic.y);
 815
 816         yDiff = wxMax(sizeSpin.y, maxHeight) + VERT_MARGIN;
 817     }
 818     else // no controls on the top
 819     {
 820         yDiff = 0;
 821     }
 822
 823     wxControl::DoMoveWindow(x, y + yDiff, width, height - yDiff);
 824 }
 825
 826 void wxCalendarCtrl::DoGetPosition(int *x, int *y) const
 827 {
 828     wxControl::DoGetPosition(x, y);
 829
 830     if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) && GetMonthControl() )
 831     {
 832         // our real top corner is not in this position
 833         if ( y )
 834         {
 835             *y -= GetMonthControl()->GetSize().y + VERT_MARGIN;
 836         }
 837     }
 838 }
 839
 840 void wxCalendarCtrl::DoGetSize(int *width, int *height) const
 841 {
 842     wxControl::DoGetSize(width, height);
 843
 844     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 845     {
 846         // our real height is bigger
 847         if ( height && GetMonthControl())
 848         {
 849             *height += GetMonthControl()->GetSize().y + VERT_MARGIN;
 850         }
 851     }
 852 }
 853
 854 void wxCalendarCtrl::RecalcGeometry()
 855 {
 856     wxClientDC dc(this);
 857
 858     dc.SetFont(GetFont());
 859
 860     // determine the column width (weekday names are not necessarily wider
 861     // than the numbers (in some languages), so let's not assume that they are)
 862     m_widthCol = 0;
 863     for ( int day = 10; day <= 31; day++)
 864     {
 865         wxCoord width;
 866         dc.GetTextExtent(wxString::Format(wxT("%d"), day), &width, &m_heightRow);
 867         if ( width > m_widthCol )
 868         {
 869             // 1.5 times the width gives nice margins even if the weekday
 870             // names are short
 871             m_widthCol = width+width/2;
 872         }
 873     }
 874     wxDateTime::WeekDay wd;
 875     for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
 876     {
 877         wxCoord width;
 878         dc.GetTextExtent(m_weekdays[wd], &width, &m_heightRow);
 879         if ( width > m_widthCol )
 880         {
 881             m_widthCol = width;
 882         }
 883     }
 884
 885     // leave some margins
 886     m_widthCol += 2;
 887     m_heightRow += 2;
 888
 889     m_rowOffset = (GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) ? m_heightRow : 0; // conditional in relation to style
 890 }
 891
 892 // ----------------------------------------------------------------------------
 893 // drawing
 894 // ----------------------------------------------------------------------------
 895
 896 void wxCalendarCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
 897 {
 898     wxPaintDC dc(this);
 899
 900     dc.SetFont(GetFont());
 901
 902     RecalcGeometry();
 903
 904 #if DEBUG_PAINT
 905     wxLogDebug("--- starting to paint, selection: %s, week %u\n",
 906            m_date.Format("%a %d-%m-%Y %H:%M:%S").c_str(),
 907            GetWeek(m_date));
 908 #endif
 909
 910     wxCoord y = 0;
 911     wxCoord x0 = wxMax( (GetSize().x - m_widthCol*7) /2 , 0 );
 912
 913     if ( HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 914     {
 915         // draw the sequential month-selector
 916
 917         dc.SetBackgroundMode(wxTRANSPARENT);
 918         dc.SetTextForeground(*wxBLACK);
 919         dc.SetBrush(wxBrush(m_colHeaderBg, wxSOLID));
 920         dc.SetPen(wxPen(m_colHeaderBg, 1, wxSOLID));
 921         dc.DrawRectangle(0, y, GetClientSize().x, m_heightRow);
 922
 923         // Get extent of month-name + year
 924         wxCoord monthw, monthh;
 925         wxString headertext = m_date.Format(wxT("%B %Y"));
 926         dc.GetTextExtent(headertext, &monthw, &monthh);
 927
 928         // draw month-name centered above weekdays
 929         wxCoord monthx = ((m_widthCol * 7) - monthw) / 2 + x0;
 930         wxCoord monthy = ((m_heightRow - monthh) / 2) + y;
 931         dc.DrawText(headertext, monthx,  monthy);
 932
 933         // calculate the "month-arrows"
 934         wxPoint leftarrow[3];
 935         wxPoint rightarrow[3];
 936
 937         int arrowheight = monthh / 2;
 938
 939         leftarrow[0] = wxPoint(0, arrowheight / 2);
 940         leftarrow[1] = wxPoint(arrowheight / 2, 0);
 941         leftarrow[2] = wxPoint(arrowheight / 2, arrowheight - 1);
 942
 943         rightarrow[0] = wxPoint(0,0);
 944         rightarrow[1] = wxPoint(arrowheight / 2, arrowheight / 2);
 945         rightarrow[2] = wxPoint(0, arrowheight - 1);
 946
 947         // draw the "month-arrows"
 948
 949         wxCoord arrowy = (m_heightRow - arrowheight) / 2;
 950         wxCoord larrowx = (m_widthCol - (arrowheight / 2)) / 2 + x0;
 951         wxCoord rarrowx = ((m_widthCol - (arrowheight / 2)) / 2) + m_widthCol*6 + x0;
 952         m_leftArrowRect = m_rightArrowRect = wxRect(0,0,0,0);
 953
 954         if ( AllowMonthChange() )
 955         {
 956             wxDateTime ldpm = wxDateTime(1,m_date.GetMonth(), m_date.GetYear()) - wxDateSpan::Day(); // last day prev month
 957             // Check if range permits change
 958             if ( IsDateInRange(ldpm) && ( ( ldpm.GetYear() == m_date.GetYear() ) ? true : AllowYearChange() ) )
 959             {
 960                 m_leftArrowRect = wxRect(larrowx - 3, arrowy - 3, (arrowheight / 2) + 8, (arrowheight + 6));
 961                 dc.SetBrush(*wxBLACK_BRUSH);
 962                 dc.SetPen(*wxBLACK_PEN);
 963                 dc.DrawPolygon(3, leftarrow, larrowx , arrowy, wxWINDING_RULE);
 964                 dc.SetBrush(*wxTRANSPARENT_BRUSH);
 965                 dc.DrawRectangle(m_leftArrowRect);
 966             }
 967             wxDateTime fdnm = wxDateTime(1,m_date.GetMonth(), m_date.GetYear()) + wxDateSpan::Month(); // first day next month
 968             if ( IsDateInRange(fdnm) && ( ( fdnm.GetYear() == m_date.GetYear() ) ? true : AllowYearChange() ) )
 969             {
 970                 m_rightArrowRect = wxRect(rarrowx - 4, arrowy - 3, (arrowheight / 2) + 8, (arrowheight + 6));
 971                 dc.SetBrush(*wxBLACK_BRUSH);
 972                 dc.SetPen(*wxBLACK_PEN);
 973                 dc.DrawPolygon(3, rightarrow, rarrowx , arrowy, wxWINDING_RULE);
 974                 dc.SetBrush(*wxTRANSPARENT_BRUSH);
 975                 dc.DrawRectangle(m_rightArrowRect);
 976             }
 977         }
 978
 979         y += m_heightRow;
 980     }
 981
 982     // first draw the week days
 983     if ( IsExposed(x0, y, x0 + 7*m_widthCol, m_heightRow) )
 984     {
 985 #if DEBUG_PAINT
 986         wxLogDebug("painting the header");
 987 #endif
 988
 989         dc.SetBackgroundMode(wxTRANSPARENT);
 990         dc.SetTextForeground(m_colHeaderFg);
 991         dc.SetBrush(wxBrush(m_colHeaderBg, wxSOLID));
 992         dc.SetPen(wxPen(m_colHeaderBg, 1, wxSOLID));
 993         dc.DrawRectangle(0, y, GetClientSize().x, m_heightRow);
 994
 995         bool startOnMonday = (GetWindowStyle() & wxCAL_MONDAY_FIRST) != 0;
 996         for ( int wd = 0; wd < 7; wd++ )
 997         {
 998             size_t n;
 999             if ( startOnMonday )
1000                 n = wd == 6 ? 0 : wd + 1;
1001             else
1002                 n = wd;
1003             wxCoord dayw, dayh;
1004             dc.GetTextExtent(m_weekdays[n], &dayw, &dayh);
1005             dc.DrawText(m_weekdays[n], x0 + (wd*m_widthCol) + ((m_widthCol- dayw) / 2), y); // center the day-name
1006         }
1007     }
1008
1009     // then the calendar itself
1010     dc.SetTextForeground(*wxBLACK);
1011     //dc.SetFont(*wxNORMAL_FONT);
1012
1013     y += m_heightRow;
1014     wxDateTime date = GetStartDate();
1015
1016 #if DEBUG_PAINT
1017     wxLogDebug("starting calendar from %s\n",
1018             date.Format("%a %d-%m-%Y %H:%M:%S").c_str());
1019 #endif
1020
1021     dc.SetBackgroundMode(wxSOLID);
1022     for ( size_t nWeek = 1; nWeek <= 6; nWeek++, y += m_heightRow )
1023     {
1024         // if the update region doesn't intersect this row, don't paint it
1025         if ( !IsExposed(x0, y, x0 + 7*m_widthCol, m_heightRow - 1) )
1026         {
1027             date += wxDateSpan::Week();
1028
1029             continue;
1030         }
1031
1032 #if DEBUG_PAINT
1033         wxLogDebug("painting week %d at y = %d\n", nWeek, y);
1034 #endif
1035
1036         for ( int wd = 0; wd < 7; wd++ )
1037         {
1038             dc.SetTextBackground(m_colBackground);
1039             if ( IsDateShown(date) )
1040             {
1041                 // don't use wxDate::Format() which prepends 0s
1042                 unsigned int day = date.GetDay();
1043                 wxString dayStr = wxString::Format(_T("%u"), day);
1044                 wxCoord width;
1045                 dc.GetTextExtent(dayStr, &width, (wxCoord *)NULL);
1046
1047                 bool changedColours = false,
1048                      changedFont = false;
1049
1050                 bool isSel = false;
1051                 wxCalendarDateAttr *attr = NULL;
1052
1053                 if ( date.GetMonth() != m_date.GetMonth() || !IsDateInRange(date) )
1054                 {
1055                     // surrounding week or out-of-range
1056                     // draw "disabled"
1057                     dc.SetTextForeground(m_colSorrounding);
1058                     changedColours = true;
1059                 }
1060                 else
1061                 {
1062                     isSel = date.IsSameDate(m_date);
1063                     attr = m_attrs[day - 1];
1064
1065                     if ( isSel )
1066                     {
1067                         dc.SetTextForeground(m_colHighlightFg);
1068                         dc.SetTextBackground(m_colHighlightBg);
1069
1070                         changedColours = true;
1071                     }
1072                     else if ( attr )
1073                     {
1074                         wxColour colFg, colBg;
1075
1076                         if ( attr->IsHoliday() )
1077                         {
1078                             colFg = m_colHolidayFg;
1079                             colBg = m_colHolidayBg;
1080                         }
1081                         else
1082                         {
1083                             colFg = attr->GetTextColour();
1084                             colBg = attr->GetBackgroundColour();
1085                         }
1086
1087                         if ( colFg.Ok() )
1088                         {
1089                             dc.SetTextForeground(colFg);
1090                             changedColours = true;
1091                         }
1092
1093                         if ( colBg.Ok() )
1094                         {
1095                             dc.SetTextBackground(colBg);
1096                             changedColours = true;
1097                         }
1098
1099                         if ( attr->HasFont() )
1100                         {
1101                             dc.SetFont(attr->GetFont());
1102                             changedFont = true;
1103                         }
1104                     }
1105                 }
1106
1107                 wxCoord x = wd*m_widthCol + (m_widthCol - width) / 2 + x0;
1108                 dc.DrawText(dayStr, x, y + 1);
1109
1110                 if ( !isSel && attr && attr->HasBorder() )
1111                 {
1112                     wxColour colBorder;
1113                     if ( attr->HasBorderColour() )
1114                     {
1115                         colBorder = attr->GetBorderColour();
1116                     }
1117                     else
1118                     {
1119                         colBorder = GetForegroundColour();
1120                     }
1121
1122                     wxPen pen(colBorder, 1, wxSOLID);
1123                     dc.SetPen(pen);
1124                     dc.SetBrush(*wxTRANSPARENT_BRUSH);
1125
1126                     switch ( attr->GetBorder() )
1127                     {
1128                         case wxCAL_BORDER_SQUARE:
1129                             dc.DrawRectangle(x - 2, y,
1130                                              width + 4, m_heightRow);
1131                             break;
1132
1133                         case wxCAL_BORDER_ROUND:
1134                             dc.DrawEllipse(x - 2, y,
1135                                            width + 4, m_heightRow);
1136                             break;
1137
1138                         default:
1139                             wxFAIL_MSG(_T("unknown border type"));
1140                     }
1141                 }
1142
1143                 if ( changedColours )
1144                 {
1145                     dc.SetTextForeground(GetForegroundColour());
1146                     dc.SetTextBackground(GetBackgroundColour());
1147                 }
1148
1149                 if ( changedFont )
1150                 {
1151                     dc.SetFont(GetFont());
1152                 }
1153             }
1154             //else: just don't draw it
1155
1156             date += wxDateSpan::Day();
1157         }
1158     }
1159
1160     // Greying out out-of-range background
1161     bool showSurrounding = (GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) != 0;
1162
1163     date = ( showSurrounding ) ? GetStartDate() : wxDateTime(1, m_date.GetMonth(), m_date.GetYear());
1164     if ( !IsDateInRange(date) )
1165     {
1166         wxDateTime firstOOR = GetLowerDateLimit() - wxDateSpan::Day(); // first out-of-range
1167
1168         wxBrush oorbrush = *wxLIGHT_GREY_BRUSH;
1169         oorbrush.SetStyle(wxFDIAGONAL_HATCH);
1170
1171         HighlightRange(&dc, date, firstOOR, wxTRANSPARENT_PEN, &oorbrush);
1172     }
1173
1174     date = ( showSurrounding ) ? GetStartDate() + wxDateSpan::Weeks(6) - wxDateSpan::Day() : wxDateTime().SetToLastMonthDay(m_date.GetMonth(), m_date.GetYear());
1175     if ( !IsDateInRange(date) )
1176     {
1177         wxDateTime firstOOR = GetUpperDateLimit() + wxDateSpan::Day(); // first out-of-range
1178
1179         wxBrush oorbrush = *wxLIGHT_GREY_BRUSH;
1180         oorbrush.SetStyle(wxFDIAGONAL_HATCH);
1181
1182         HighlightRange(&dc, firstOOR, date, wxTRANSPARENT_PEN, &oorbrush);
1183     }
1184
1185 #if DEBUG_PAINT
1186     wxLogDebug("+++ finished painting");
1187 #endif
1188 }
1189
1190 void wxCalendarCtrl::RefreshDate(const wxDateTime& date)
1191 {
1192     RecalcGeometry();
1193
1194     wxRect rect;
1195
1196     // always refresh the whole row at once because our OnPaint() will draw
1197     // the whole row anyhow - and this allows the small optimisation in
1198     // OnClick() below to work
1199     rect.x = wxMax( (GetSize().x - m_widthCol*7) /2 , 0 );
1200
1201     rect.y = (m_heightRow * GetWeek(date)) + m_rowOffset;
1202
1203     rect.width = 7*m_widthCol;
1204     rect.height = m_heightRow;
1205
1206 #ifdef __WXMSW__
1207     // VZ: for some reason, the selected date seems to occupy more space under
1208     //     MSW - this is probably some bug in the font size calculations, but I
1209     //     don't know where exactly. This fix is ugly and leads to more
1210     //     refreshes than really needed, but without it the selected days
1211     //     leaves even more ugly underscores on screen.
1212     rect.Inflate(0, 1);
1213 #endif // MSW
1214
1215 #if DEBUG_PAINT
1216     wxLogDebug("*** refreshing week %d at (%d, %d)-(%d, %d)\n",
1217            GetWeek(date),
1218            rect.x, rect.y,
1219            rect.x + rect.width, rect.y + rect.height);
1220 #endif
1221
1222     Refresh(true, &rect);
1223 }
1224
1225 void wxCalendarCtrl::HighlightRange(wxPaintDC* pDC, const wxDateTime& fromdate, const wxDateTime& todate, const wxPen* pPen, const wxBrush* pBrush)
1226 {
1227     // Highlights the given range using pen and brush
1228     // Does nothing if todate < fromdate
1229
1230
1231 #if DEBUG_PAINT
1232     wxLogDebug("+++ HighlightRange: (%s) - (%s) +++", fromdate.Format("%d %m %Y"), todate.Format("%d %m %Y"));
1233 #endif
1234
1235     if ( todate >= fromdate )
1236     {
1237         // do stuff
1238         // date-coordinates
1239         int fd, fw;
1240         int td, tw;
1241
1242         // implicit: both dates must be currently shown - checked by GetDateCoord
1243         if ( GetDateCoord(fromdate, &fd, &fw) && GetDateCoord(todate, &td, &tw) )
1244         {
1245 #if DEBUG_PAINT
1246             wxLogDebug("Highlight range: (%i, %i) - (%i, %i)", fd, fw, td, tw);
1247 #endif
1248             if ( ( (tw - fw) == 1 ) && ( td < fd ) )
1249             {
1250                 // special case: interval 7 days or less not in same week
1251                 // split in two separate intervals
1252                 wxDateTime tfd = fromdate + wxDateSpan::Days(7-fd);
1253                 wxDateTime ftd = tfd + wxDateSpan::Day();
1254 #if DEBUG_PAINT
1255                 wxLogDebug("Highlight: Separate segments");
1256 #endif
1257                 // draw separately
1258                 HighlightRange(pDC, fromdate, tfd, pPen, pBrush);
1259                 HighlightRange(pDC, ftd, todate, pPen, pBrush);
1260             }
1261             else
1262             {
1263                 int numpoints;
1264                 wxPoint corners[8]; // potentially 8 corners in polygon
1265                 wxCoord x0 = wxMax( (GetSize().x - m_widthCol*7) /2 , 0 );
1266
1267                 if ( fw == tw )
1268                 {
1269                     // simple case: same week
1270                     numpoints = 4;
1271                     corners[0] = wxPoint(x0 + (fd - 1) * m_widthCol, (fw * m_heightRow) + m_rowOffset);
1272                     corners[1] = wxPoint(x0 + (fd - 1) * m_widthCol, ((fw + 1 ) * m_heightRow) + m_rowOffset);
1273                     corners[2] = wxPoint(x0 + td * m_widthCol, ((tw + 1) * m_heightRow) + m_rowOffset);
1274                     corners[3] = wxPoint(x0 + td * m_widthCol, (tw * m_heightRow) + m_rowOffset);
1275                 }
1276                 else
1277                 {
1278                     int cidx = 0;
1279                     // "complex" polygon
1280                     corners[cidx] = wxPoint(x0 + (fd - 1) * m_widthCol, (fw * m_heightRow) + m_rowOffset); cidx++;
1281
1282                     if ( fd > 1 )
1283                     {
1284                         corners[cidx] = wxPoint(x0 + (fd - 1) * m_widthCol, ((fw + 1) * m_heightRow) + m_rowOffset); cidx++;
1285                         corners[cidx] = wxPoint(x0, ((fw + 1) * m_heightRow) + m_rowOffset); cidx++;
1286                     }
1287
1288                     corners[cidx] = wxPoint(x0, ((tw + 1) * m_heightRow) + m_rowOffset); cidx++;
1289                     corners[cidx] = wxPoint(x0 + td * m_widthCol, ((tw + 1) * m_heightRow) + m_rowOffset); cidx++;
1290
1291                     if ( td < 7 )
1292                     {
1293                         corners[cidx] = wxPoint(x0 + td * m_widthCol, (tw * m_heightRow) + m_rowOffset); cidx++;
1294                         corners[cidx] = wxPoint(x0 + 7 * m_widthCol, (tw * m_heightRow) + m_rowOffset); cidx++;
1295                     }
1296
1297                     corners[cidx] = wxPoint(x0 + 7 * m_widthCol, (fw * m_heightRow) + m_rowOffset); cidx++;
1298
1299                     numpoints = cidx;
1300                 }
1301
1302                 // draw the polygon
1303                 pDC->SetBrush(*pBrush);
1304                 pDC->SetPen(*pPen);
1305                 pDC->DrawPolygon(numpoints, corners);
1306             }
1307         }
1308     }
1309     // else do nothing
1310 #if DEBUG_PAINT
1311     wxLogDebug("--- HighlightRange ---");
1312 #endif
1313 }
1314
1315 bool wxCalendarCtrl::GetDateCoord(const wxDateTime& date, int *day, int *week) const
1316 {
1317     bool retval = true;
1318
1319 #if DEBUG_PAINT
1320     wxLogDebug("+++ GetDateCoord: (%s) +++", date.Format("%d %m %Y"));
1321 #endif
1322
1323     if ( IsDateShown(date) )
1324     {
1325         bool startOnMonday = ( GetWindowStyle() & wxCAL_MONDAY_FIRST ) != 0;
1326
1327         // Find day
1328         *day = date.GetWeekDay();
1329
1330         if ( *day == 0 ) // sunday
1331         {
1332             *day = ( startOnMonday ) ? 7 : 1;
1333         }
1334         else
1335         {
1336             *day += ( startOnMonday ) ? 0 : 1;
1337         }
1338
1339         int targetmonth = date.GetMonth() + (12 * date.GetYear());
1340         int thismonth = m_date.GetMonth() + (12 * m_date.GetYear());
1341
1342         // Find week
1343         if ( targetmonth == thismonth )
1344         {
1345             *week = GetWeek(date);
1346         }
1347         else
1348         {
1349             if ( targetmonth < thismonth )
1350             {
1351                 *week = 1; // trivial
1352             }
1353             else // targetmonth > thismonth
1354             {
1355                 wxDateTime ldcm;
1356                 int lastweek;
1357                 int lastday;
1358
1359                 // get the datecoord of the last day in the month currently shown
1360 #if DEBUG_PAINT
1361                 wxLogDebug("     +++ LDOM +++");
1362 #endif
1363                 GetDateCoord(ldcm.SetToLastMonthDay(m_date.GetMonth(), m_date.GetYear()), &lastday, &lastweek);
1364 #if DEBUG_PAINT
1365                 wxLogDebug("     --- LDOM ---");
1366 #endif
1367
1368                 wxTimeSpan span = date - ldcm;
1369
1370                 int daysfromlast = span.GetDays();
1371 #if DEBUG_PAINT
1372                 wxLogDebug("daysfromlast: %i", daysfromlast);
1373 #endif
1374                 if ( daysfromlast + lastday > 7 ) // past week boundary
1375                 {
1376                     int wholeweeks = (daysfromlast / 7);
1377                     *week = wholeweeks + lastweek;
1378                     if ( (daysfromlast - (7 * wholeweeks) + lastday) > 7 )
1379                     {
1380                         *week += 1;
1381                     }
1382                 }
1383                 else
1384                 {
1385                     *week = lastweek;
1386                 }
1387             }
1388         }
1389     }
1390     else
1391     {
1392         *day = -1;
1393         *week = -1;
1394         retval = false;
1395     }
1396
1397 #if DEBUG_PAINT
1398     wxLogDebug("--- GetDateCoord: (%s) = (%i, %i) ---", date.Format("%d %m %Y"), *day, *week);
1399 #endif
1400
1401     return retval;
1402 }
1403
1404 // ----------------------------------------------------------------------------
1405 // mouse handling
1406 // ----------------------------------------------------------------------------
1407
1408 void wxCalendarCtrl::OnDClick(wxMouseEvent& event)
1409 {
1410     if ( HitTest(event.GetPosition()) != wxCAL_HITTEST_DAY )
1411     {
1412         event.Skip();
1413     }
1414     else
1415     {
1416         GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED);
1417     }
1418 }
1419
1420 void wxCalendarCtrl::OnClick(wxMouseEvent& event)
1421 {
1422     wxDateTime date;
1423     wxDateTime::WeekDay wday;
1424     switch ( HitTest(event.GetPosition(), &date, &wday) )
1425     {
1426         case wxCAL_HITTEST_DAY:
1427             if ( IsDateInRange(date) )
1428             {
1429                 ChangeDay(date);
1430
1431                 GenerateEvents(wxEVT_CALENDAR_DAY_CHANGED,
1432                                wxEVT_CALENDAR_SEL_CHANGED);
1433             }
1434             break;
1435
1436         case wxCAL_HITTEST_HEADER:
1437             {
1438                 wxCalendarEvent eventWd(this, wxEVT_CALENDAR_WEEKDAY_CLICKED);
1439                 eventWd.m_wday = wday;
1440                 (void)GetEventHandler()->ProcessEvent(eventWd);
1441             }
1442             break;
1443
1444         case wxCAL_HITTEST_DECMONTH:
1445         case wxCAL_HITTEST_INCMONTH:
1446         case wxCAL_HITTEST_SURROUNDING_WEEK:
1447             SetDateAndNotify(date); // we probably only want to refresh the control. No notification.. (maybe as an option?)
1448             break;
1449
1450         default:
1451             wxFAIL_MSG(_T("unknown hittest code"));
1452             // fall through
1453
1454         case wxCAL_HITTEST_NOWHERE:
1455             event.Skip();
1456             break;
1457     }
1458 }
1459
1460 wxCalendarHitTestResult wxCalendarCtrl::HitTest(const wxPoint& pos,
1461                                                 wxDateTime *date,
1462                                                 wxDateTime::WeekDay *wd)
1463 {
1464     RecalcGeometry();
1465     // use the correct x-pos
1466     wxCoord x0 = wxMax((GetSize().x - m_widthCol*7) /2, 0);
1467     wxPoint pos_corr = pos;
1468     pos_corr.x -= x0;
1469
1470     wxCoord y = pos_corr.y;
1471
1472 ///////////////////////////////////////////////////////////////////////////////////////////////////////
1473     if ( (GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
1474     {
1475         // Header: month
1476
1477         // we need to find out if the hit is on left arrow, on month or on right arrow
1478         // left arrow?
1479         if ( wxRegion(m_leftArrowRect).Contains(pos_corr) == wxInRegion )
1480         {
1481             if ( date )
1482             {
1483                 if ( IsDateInRange(m_date - wxDateSpan::Month()) )
1484                 {
1485                     *date = m_date - wxDateSpan::Month();
1486                 }
1487                 else
1488                 {
1489                     *date = GetLowerDateLimit();
1490                 }
1491             }
1492
1493             return wxCAL_HITTEST_DECMONTH;
1494         }
1495
1496         if ( wxRegion(m_rightArrowRect).Contains(pos_corr) == wxInRegion )
1497         {
1498             if ( date )
1499             {
1500                 if ( IsDateInRange(m_date + wxDateSpan::Month()) )
1501                 {
1502                     *date = m_date + wxDateSpan::Month();
1503                 }
1504                 else
1505                 {
1506                     *date = GetUpperDateLimit();
1507                 }
1508             }
1509
1510             return wxCAL_HITTEST_INCMONTH;
1511         }
1512
1513     }
1514
1515 ///////////////////////////////////////////////////////////////////////////////////////////////////////
1516     // Header: Days
1517
1518     int wday = pos_corr.x / m_widthCol;
1519 //    if ( y < m_heightRow )
1520     if ( y < (m_heightRow + m_rowOffset) )
1521     {
1522         if ( y > m_rowOffset )
1523         {
1524             if ( wd )
1525             {
1526                 if ( GetWindowStyle() & wxCAL_MONDAY_FIRST )
1527                 {
1528                     wday = wday == 6 ? 0 : wday + 1;
1529                 }
1530
1531                 *wd = (wxDateTime::WeekDay)wday;
1532             }
1533
1534             return wxCAL_HITTEST_HEADER;
1535         }
1536         else
1537         {
1538             return wxCAL_HITTEST_NOWHERE;
1539         }
1540     }
1541
1542 //    int week = (y - m_heightRow) / m_heightRow;
1543     int week = (y - (m_heightRow + m_rowOffset)) / m_heightRow;
1544     if ( week >= 6 || wday >= 7 )
1545     {
1546         return wxCAL_HITTEST_NOWHERE;
1547     }
1548
1549     wxDateTime dt = GetStartDate() + wxDateSpan::Days(7*week + wday);
1550
1551     if ( IsDateShown(dt) )
1552     {
1553         if ( date )
1554             *date = dt;
1555
1556         if ( dt.GetMonth() == m_date.GetMonth() )
1557         {
1558
1559             return wxCAL_HITTEST_DAY;
1560         }
1561         else
1562         {
1563             return wxCAL_HITTEST_SURROUNDING_WEEK;
1564         }
1565     }
1566     else
1567     {
1568         return wxCAL_HITTEST_NOWHERE;
1569     }
1570 }
1571
1572 // ----------------------------------------------------------------------------
1573 // subcontrols events handling
1574 // ----------------------------------------------------------------------------
1575
1576 void wxCalendarCtrl::OnMonthChange(wxCommandEvent& event)
1577 {
1578     wxDateTime::Tm tm = m_date.GetTm();
1579
1580     wxDateTime::Month mon = (wxDateTime::Month)event.GetInt();
1581     if ( tm.mday > wxDateTime::GetNumberOfDays(mon, tm.year) )
1582     {
1583         tm.mday = wxDateTime::GetNumberOfDays(mon, tm.year);
1584     }
1585
1586     wxDateTime target = wxDateTime(tm.mday, mon, tm.year);
1587
1588     ChangeMonth(&target);
1589     SetDateAndNotify(target);
1590 }
1591
1592 void wxCalendarCtrl::OnYearChange(wxCommandEvent& event)
1593 {
1594     int year = (int)event.GetInt();
1595     if ( year == INT_MIN )
1596     {
1597         // invalid year in the spin control, ignore it
1598         return;
1599     }
1600
1601     wxDateTime::Tm tm = m_date.GetTm();
1602
1603     if ( tm.mday > wxDateTime::GetNumberOfDays(tm.mon, year) )
1604     {
1605         tm.mday = wxDateTime::GetNumberOfDays(tm.mon, year);
1606     }
1607
1608     wxDateTime target = wxDateTime(tm.mday, tm.mon, year);
1609
1610     if ( ChangeYear(&target) )
1611     {
1612         SetDateAndNotify(target);
1613     }
1614     else
1615     {
1616         // In this case we don't want to change the date. That would put us
1617         // inside the same year but a strange number of months forward/back..
1618         m_spinYear->SetValue(target.GetYear());
1619     }
1620 }
1621
1622 void wxCalendarCtrl::OnYearTextChange(wxCommandEvent& event)
1623 {
1624     SetUserChangedYear();
1625     OnYearChange(event);
1626 }
1627
1628 // Responds to colour changes, and passes event on to children.
1629 void wxCalendarCtrl::OnSysColourChanged(wxSysColourChangedEvent& event)
1630 {
1631     // reinit colours
1632     InitColours();
1633
1634     // Propagate the event to the children
1635     wxControl::OnSysColourChanged(event);
1636
1637     // Redraw control area
1638     SetBackgroundColour(m_colBackground);
1639     Refresh();
1640 }
1641
1642 // ----------------------------------------------------------------------------
1643 // keyboard interface
1644 // ----------------------------------------------------------------------------
1645
1646 void wxCalendarCtrl::OnChar(wxKeyEvent& event)
1647 {
1648     wxDateTime target;
1649     switch ( event.GetKeyCode() )
1650     {
1651         case _T('+'):
1652         case WXK_ADD:
1653             target = m_date + wxDateSpan::Year();
1654             if ( ChangeYear(&target) )
1655             {
1656                 SetDateAndNotify(target);
1657             }
1658             break;
1659
1660         case _T('-'):
1661         case WXK_SUBTRACT:
1662             target = m_date - wxDateSpan::Year();
1663             if ( ChangeYear(&target) )
1664             {
1665                 SetDateAndNotify(target);
1666             }
1667             break;
1668
1669         case WXK_PAGEUP:
1670             target = m_date - wxDateSpan::Month();
1671             ChangeMonth(&target);
1672             SetDateAndNotify(target); // always
1673             break;
1674
1675         case WXK_PAGEDOWN:
1676             target = m_date + wxDateSpan::Month();
1677             ChangeMonth(&target);
1678             SetDateAndNotify(target); // always
1679             break;
1680
1681         case WXK_RIGHT:
1682             if ( event.ControlDown() )
1683             {
1684                 target = wxDateTime(m_date).SetToNextWeekDay(
1685                                  GetWindowStyle() & wxCAL_MONDAY_FIRST
1686                                  ? wxDateTime::Sun : wxDateTime::Sat);
1687                 if ( !IsDateInRange(target) )
1688                 {
1689                     target = GetUpperDateLimit();
1690                 }
1691                 SetDateAndNotify(target);
1692             }
1693             else
1694                 SetDateAndNotify(m_date + wxDateSpan::Day());
1695             break;
1696
1697         case WXK_LEFT:
1698             if ( event.ControlDown() )
1699             {
1700                 target = wxDateTime(m_date).SetToPrevWeekDay(
1701                                  GetWindowStyle() & wxCAL_MONDAY_FIRST
1702                                  ? wxDateTime::Mon : wxDateTime::Sun);
1703                 if ( !IsDateInRange(target) )
1704                 {
1705                     target = GetLowerDateLimit();
1706                 }
1707                 SetDateAndNotify(target);
1708             }
1709             else
1710                 SetDateAndNotify(m_date - wxDateSpan::Day());
1711             break;
1712
1713         case WXK_UP:
1714             SetDateAndNotify(m_date - wxDateSpan::Week());
1715             break;
1716
1717         case WXK_DOWN:
1718             SetDateAndNotify(m_date + wxDateSpan::Week());
1719             break;
1720
1721         case WXK_HOME:
1722             if ( event.ControlDown() )
1723                 SetDateAndNotify(wxDateTime::Today());
1724             else
1725                 SetDateAndNotify(wxDateTime(1, m_date.GetMonth(), m_date.GetYear()));
1726             break;
1727
1728         case WXK_END:
1729             SetDateAndNotify(wxDateTime(m_date).SetToLastMonthDay());
1730             break;
1731
1732         case WXK_RETURN:
1733             GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED);
1734             break;
1735
1736         default:
1737             event.Skip();
1738     }
1739 }
1740
1741 // ----------------------------------------------------------------------------
1742 // holidays handling
1743 // ----------------------------------------------------------------------------
1744
1745 void wxCalendarCtrl::EnableHolidayDisplay(bool display)
1746 {
1747     long style = GetWindowStyle();
1748     if ( display )
1749         style |= wxCAL_SHOW_HOLIDAYS;
1750     else
1751         style &= ~wxCAL_SHOW_HOLIDAYS;
1752
1753     SetWindowStyle(style);
1754
1755     if ( display )
1756         SetHolidayAttrs();
1757     else
1758         ResetHolidayAttrs();
1759
1760     Refresh();
1761 }
1762
1763 void wxCalendarCtrl::SetHolidayAttrs()
1764 {
1765     if ( GetWindowStyle() & wxCAL_SHOW_HOLIDAYS )
1766     {
1767         ResetHolidayAttrs();
1768
1769         wxDateTime::Tm tm = m_date.GetTm();
1770         wxDateTime dtStart(1, tm.mon, tm.year),
1771                    dtEnd = dtStart.GetLastMonthDay();
1772
1773         wxDateTimeArray hol;
1774         wxDateTimeHolidayAuthority::GetHolidaysInRange(dtStart, dtEnd, hol);
1775
1776         size_t count = hol.GetCount();
1777         for ( size_t n = 0; n < count; n++ )
1778         {
1779             SetHoliday(hol[n].GetDay());
1780         }
1781     }
1782 }
1783
1784 void wxCalendarCtrl::SetHoliday(size_t day)
1785 {
1786     wxCHECK_RET( day > 0 && day < 32, _T("invalid day in SetHoliday") );
1787
1788     wxCalendarDateAttr *attr = GetAttr(day);
1789     if ( !attr )
1790     {
1791         attr = new wxCalendarDateAttr;
1792     }
1793
1794     attr->SetHoliday(true);
1795
1796     // can't use SetAttr() because it would delete this pointer
1797     m_attrs[day - 1] = attr;
1798 }
1799
1800 void wxCalendarCtrl::ResetHolidayAttrs()
1801 {
1802     for ( size_t day = 0; day < 31; day++ )
1803     {
1804         if ( m_attrs[day] )
1805         {
1806             m_attrs[day]->SetHoliday(false);
1807         }
1808     }
1809 }
1810
1811
1812 //static
1813 wxVisualAttributes
1814 wxCalendarCtrl::GetClassDefaultAttributes(wxWindowVariant variant)
1815 {
1816     // Use the same color scheme as wxListBox
1817     return wxListBox::GetClassDefaultAttributes(variant);
1818 }
1819
1820 #endif // wxUSE_CALENDARCTRL