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) )
 792     {
 793         wxSize sizeCombo = m_comboMonth->GetSize();
 794         wxSize sizeStatic = m_staticMonth->GetSize();
 795         wxSize sizeSpin = m_spinYear->GetSize();
 796         int dy = (sizeCombo.y - sizeStatic.y) / 2;
 797         m_comboMonth->Move(x, y);
 798         m_staticMonth->SetSize(x, y + dy, sizeCombo.x, sizeStatic.y);
 799
 800         int xDiff = sizeCombo.x + HORZ_MARGIN;
 801
 802         m_spinYear->SetSize(x + xDiff, y, width - xDiff, sizeCombo.y);
 803         m_staticYear->SetSize(x + xDiff, y + dy, width - xDiff, sizeStatic.y);
 804
 805         yDiff = wxMax(sizeSpin.y, sizeCombo.y) + VERT_MARGIN;
 806     }
 807     else // no controls on the top
 808     {
 809         yDiff = 0;
 810     }
 811
 812     wxControl::DoMoveWindow(x, y + yDiff, width, height - yDiff);
 813 }
 814
 815 void wxCalendarCtrl::DoGetPosition(int *x, int *y) const
 816 {
 817     wxControl::DoGetPosition(x, y);
 818
 819     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 820     {
 821         // our real top corner is not in this position
 822         if ( y )
 823         {
 824             *y -= GetMonthControl()->GetSize().y + VERT_MARGIN;
 825         }
 826     }
 827 }
 828
 829 void wxCalendarCtrl::DoGetSize(int *width, int *height) const
 830 {
 831     wxControl::DoGetSize(width, height);
 832
 833     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 834     {
 835         // our real height is bigger
 836         if ( height && GetMonthControl())
 837         {
 838             *height += GetMonthControl()->GetSize().y + VERT_MARGIN;
 839         }
 840     }
 841 }
 842
 843 void wxCalendarCtrl::RecalcGeometry()
 844 {
 845     wxClientDC dc(this);
 846
 847     dc.SetFont(GetFont());
 848
 849     // determine the column width (weekday names are not necessarily wider
 850     // than the numbers (in some languages), so let's not assume that they are)
 851     m_widthCol = 0;
 852     for ( int day = 10; day <= 31; day++)
 853     {
 854         wxCoord width;
 855         dc.GetTextExtent(wxString::Format(wxT("%d"), day), &width, &m_heightRow);
 856         if ( width > m_widthCol )
 857         {
 858             // 1.5 times the width gives nice margins even if the weekday
 859             // names are short
 860             m_widthCol = width+width/2;
 861         }
 862     }
 863     wxDateTime::WeekDay wd;
 864     for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
 865     {
 866         wxCoord width;
 867         dc.GetTextExtent(m_weekdays[wd], &width, &m_heightRow);
 868         if ( width > m_widthCol )
 869         {
 870             m_widthCol = width;
 871         }
 872     }
 873
 874     // leave some margins
 875     m_widthCol += 2;
 876     m_heightRow += 2;
 877
 878     m_rowOffset = (GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) ? m_heightRow : 0; // conditional in relation to style
 879 }
 880
 881 // ----------------------------------------------------------------------------
 882 // drawing
 883 // ----------------------------------------------------------------------------
 884
 885 void wxCalendarCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
 886 {
 887     wxPaintDC dc(this);
 888
 889     dc.SetFont(GetFont());
 890
 891     RecalcGeometry();
 892
 893 #if DEBUG_PAINT
 894     wxLogDebug("--- starting to paint, selection: %s, week %u\n",
 895            m_date.Format("%a %d-%m-%Y %H:%M:%S").c_str(),
 896            GetWeek(m_date));
 897 #endif
 898
 899     wxCoord y = 0;
 900     wxCoord x0 = wxMax( (GetSize().x - m_widthCol*7) /2 , 0 );
 901
 902     if ( HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 903     {
 904         // draw the sequential month-selector
 905
 906         dc.SetBackgroundMode(wxTRANSPARENT);
 907         dc.SetTextForeground(*wxBLACK);
 908         dc.SetBrush(wxBrush(m_colHeaderBg, wxSOLID));
 909         dc.SetPen(wxPen(m_colHeaderBg, 1, wxSOLID));
 910         dc.DrawRectangle(0, y, GetClientSize().x, m_heightRow);
 911
 912         // Get extent of month-name + year
 913         wxCoord monthw, monthh;
 914         wxString headertext = m_date.Format(wxT("%B %Y"));
 915         dc.GetTextExtent(headertext, &monthw, &monthh);
 916
 917         // draw month-name centered above weekdays
 918         wxCoord monthx = ((m_widthCol * 7) - monthw) / 2 + x0;
 919         wxCoord monthy = ((m_heightRow - monthh) / 2) + y;
 920         dc.DrawText(headertext, monthx,  monthy);
 921
 922         // calculate the "month-arrows"
 923         wxPoint leftarrow[3];
 924         wxPoint rightarrow[3];
 925
 926         int arrowheight = monthh / 2;
 927
 928         leftarrow[0] = wxPoint(0, arrowheight / 2);
 929         leftarrow[1] = wxPoint(arrowheight / 2, 0);
 930         leftarrow[2] = wxPoint(arrowheight / 2, arrowheight - 1);
 931
 932         rightarrow[0] = wxPoint(0,0);
 933         rightarrow[1] = wxPoint(arrowheight / 2, arrowheight / 2);
 934         rightarrow[2] = wxPoint(0, arrowheight - 1);
 935
 936         // draw the "month-arrows"
 937
 938         wxCoord arrowy = (m_heightRow - arrowheight) / 2;
 939         wxCoord larrowx = (m_widthCol - (arrowheight / 2)) / 2 + x0;
 940         wxCoord rarrowx = ((m_widthCol - (arrowheight / 2)) / 2) + m_widthCol*6 + x0;
 941         m_leftArrowRect = m_rightArrowRect = wxRect(0,0,0,0);
 942
 943         if ( AllowMonthChange() )
 944         {
 945             wxDateTime ldpm = wxDateTime(1,m_date.GetMonth(), m_date.GetYear()) - wxDateSpan::Day(); // last day prev month
 946             // Check if range permits change
 947             if ( IsDateInRange(ldpm) && ( ( ldpm.GetYear() == m_date.GetYear() ) ? true : AllowYearChange() ) )
 948             {
 949                 m_leftArrowRect = wxRect(larrowx - 3, arrowy - 3, (arrowheight / 2) + 8, (arrowheight + 6));
 950                 dc.SetBrush(*wxBLACK_BRUSH);
 951                 dc.SetPen(*wxBLACK_PEN);
 952                 dc.DrawPolygon(3, leftarrow, larrowx , arrowy, wxWINDING_RULE);
 953                 dc.SetBrush(*wxTRANSPARENT_BRUSH);
 954                 dc.DrawRectangle(m_leftArrowRect);
 955             }
 956             wxDateTime fdnm = wxDateTime(1,m_date.GetMonth(), m_date.GetYear()) + wxDateSpan::Month(); // first day next month
 957             if ( IsDateInRange(fdnm) && ( ( fdnm.GetYear() == m_date.GetYear() ) ? true : AllowYearChange() ) )
 958             {
 959                 m_rightArrowRect = wxRect(rarrowx - 4, arrowy - 3, (arrowheight / 2) + 8, (arrowheight + 6));
 960                 dc.SetBrush(*wxBLACK_BRUSH);
 961                 dc.SetPen(*wxBLACK_PEN);
 962                 dc.DrawPolygon(3, rightarrow, rarrowx , arrowy, wxWINDING_RULE);
 963                 dc.SetBrush(*wxTRANSPARENT_BRUSH);
 964                 dc.DrawRectangle(m_rightArrowRect);
 965             }
 966         }
 967
 968         y += m_heightRow;
 969     }
 970
 971     // first draw the week days
 972     if ( IsExposed(x0, y, x0 + 7*m_widthCol, m_heightRow) )
 973     {
 974 #if DEBUG_PAINT
 975         wxLogDebug("painting the header");
 976 #endif
 977
 978         dc.SetBackgroundMode(wxTRANSPARENT);
 979         dc.SetTextForeground(m_colHeaderFg);
 980         dc.SetBrush(wxBrush(m_colHeaderBg, wxSOLID));
 981         dc.SetPen(wxPen(m_colHeaderBg, 1, wxSOLID));
 982         dc.DrawRectangle(0, y, GetClientSize().x, m_heightRow);
 983
 984         bool startOnMonday = (GetWindowStyle() & wxCAL_MONDAY_FIRST) != 0;
 985         for ( int wd = 0; wd < 7; wd++ )
 986         {
 987             size_t n;
 988             if ( startOnMonday )
 989                 n = wd == 6 ? 0 : wd + 1;
 990             else
 991                 n = wd;
 992             wxCoord dayw, dayh;
 993             dc.GetTextExtent(m_weekdays[n], &dayw, &dayh);
 994             dc.DrawText(m_weekdays[n], x0 + (wd*m_widthCol) + ((m_widthCol- dayw) / 2), y); // center the day-name
 995         }
 996     }
 997
 998     // then the calendar itself
 999     dc.SetTextForeground(*wxBLACK);
1000     //dc.SetFont(*wxNORMAL_FONT);
1001
1002     y += m_heightRow;
1003     wxDateTime date = GetStartDate();
1004
1005 #if DEBUG_PAINT
1006     wxLogDebug("starting calendar from %s\n",
1007             date.Format("%a %d-%m-%Y %H:%M:%S").c_str());
1008 #endif
1009
1010     dc.SetBackgroundMode(wxSOLID);
1011     for ( size_t nWeek = 1; nWeek <= 6; nWeek++, y += m_heightRow )
1012     {
1013         // if the update region doesn't intersect this row, don't paint it
1014         if ( !IsExposed(x0, y, x0 + 7*m_widthCol, m_heightRow - 1) )
1015         {
1016             date += wxDateSpan::Week();
1017
1018             continue;
1019         }
1020
1021 #if DEBUG_PAINT
1022         wxLogDebug("painting week %d at y = %d\n", nWeek, y);
1023 #endif
1024
1025         for ( int wd = 0; wd < 7; wd++ )
1026         {
1027             dc.SetTextBackground(m_colBackground);
1028             if ( IsDateShown(date) )
1029             {
1030                 // don't use wxDate::Format() which prepends 0s
1031                 unsigned int day = date.GetDay();
1032                 wxString dayStr = wxString::Format(_T("%u"), day);
1033                 wxCoord width;
1034                 dc.GetTextExtent(dayStr, &width, (wxCoord *)NULL);
1035
1036                 bool changedColours = false,
1037                      changedFont = false;
1038
1039                 bool isSel = false;
1040                 wxCalendarDateAttr *attr = NULL;
1041
1042                 if ( date.GetMonth() != m_date.GetMonth() || !IsDateInRange(date) )
1043                 {
1044                     // surrounding week or out-of-range
1045                     // draw "disabled"
1046                     dc.SetTextForeground(m_colSorrounding);
1047                     changedColours = true;
1048                 }
1049                 else
1050                 {
1051                     isSel = date.IsSameDate(m_date);
1052                     attr = m_attrs[day - 1];
1053
1054                     if ( isSel )
1055                     {
1056                         dc.SetTextForeground(m_colHighlightFg);
1057                         dc.SetTextBackground(m_colHighlightBg);
1058
1059                         changedColours = true;
1060                     }
1061                     else if ( attr )
1062                     {
1063                         wxColour colFg, colBg;
1064
1065                         if ( attr->IsHoliday() )
1066                         {
1067                             colFg = m_colHolidayFg;
1068                             colBg = m_colHolidayBg;
1069                         }
1070                         else
1071                         {
1072                             colFg = attr->GetTextColour();
1073                             colBg = attr->GetBackgroundColour();
1074                         }
1075
1076                         if ( colFg.Ok() )
1077                         {
1078                             dc.SetTextForeground(colFg);
1079                             changedColours = true;
1080                         }
1081
1082                         if ( colBg.Ok() )
1083                         {
1084                             dc.SetTextBackground(colBg);
1085                             changedColours = true;
1086                         }
1087
1088                         if ( attr->HasFont() )
1089                         {
1090                             dc.SetFont(attr->GetFont());
1091                             changedFont = true;
1092                         }
1093                     }
1094                 }
1095
1096                 wxCoord x = wd*m_widthCol + (m_widthCol - width) / 2 + x0;
1097                 dc.DrawText(dayStr, x, y + 1);
1098
1099                 if ( !isSel && attr && attr->HasBorder() )
1100                 {
1101                     wxColour colBorder;
1102                     if ( attr->HasBorderColour() )
1103                     {
1104                         colBorder = attr->GetBorderColour();
1105                     }
1106                     else
1107                     {
1108                         colBorder = GetForegroundColour();
1109                     }
1110
1111                     wxPen pen(colBorder, 1, wxSOLID);
1112                     dc.SetPen(pen);
1113                     dc.SetBrush(*wxTRANSPARENT_BRUSH);
1114
1115                     switch ( attr->GetBorder() )
1116                     {
1117                         case wxCAL_BORDER_SQUARE:
1118                             dc.DrawRectangle(x - 2, y,
1119                                              width + 4, m_heightRow);
1120                             break;
1121
1122                         case wxCAL_BORDER_ROUND:
1123                             dc.DrawEllipse(x - 2, y,
1124                                            width + 4, m_heightRow);
1125                             break;
1126
1127                         default:
1128                             wxFAIL_MSG(_T("unknown border type"));
1129                     }
1130                 }
1131
1132                 if ( changedColours )
1133                 {
1134                     dc.SetTextForeground(GetForegroundColour());
1135                     dc.SetTextBackground(GetBackgroundColour());
1136                 }
1137
1138                 if ( changedFont )
1139                 {
1140                     dc.SetFont(GetFont());
1141                 }
1142             }
1143             //else: just don't draw it
1144
1145             date += wxDateSpan::Day();
1146         }
1147     }
1148
1149     // Greying out out-of-range background
1150     bool showSurrounding = (GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) != 0;
1151
1152     date = ( showSurrounding ) ? GetStartDate() : wxDateTime(1, m_date.GetMonth(), m_date.GetYear());
1153     if ( !IsDateInRange(date) )
1154     {
1155         wxDateTime firstOOR = GetLowerDateLimit() - wxDateSpan::Day(); // first out-of-range
1156
1157         wxBrush oorbrush = *wxLIGHT_GREY_BRUSH;
1158         oorbrush.SetStyle(wxFDIAGONAL_HATCH);
1159
1160         HighlightRange(&dc, date, firstOOR, wxTRANSPARENT_PEN, &oorbrush);
1161     }
1162
1163     date = ( showSurrounding ) ? GetStartDate() + wxDateSpan::Weeks(6) - wxDateSpan::Day() : wxDateTime().SetToLastMonthDay(m_date.GetMonth(), m_date.GetYear());
1164     if ( !IsDateInRange(date) )
1165     {
1166         wxDateTime firstOOR = GetUpperDateLimit() + wxDateSpan::Day(); // first out-of-range
1167
1168         wxBrush oorbrush = *wxLIGHT_GREY_BRUSH;
1169         oorbrush.SetStyle(wxFDIAGONAL_HATCH);
1170
1171         HighlightRange(&dc, firstOOR, date, wxTRANSPARENT_PEN, &oorbrush);
1172     }
1173
1174 #if DEBUG_PAINT
1175     wxLogDebug("+++ finished painting");
1176 #endif
1177 }
1178
1179 void wxCalendarCtrl::RefreshDate(const wxDateTime& date)
1180 {
1181     RecalcGeometry();
1182
1183     wxRect rect;
1184
1185     // always refresh the whole row at once because our OnPaint() will draw
1186     // the whole row anyhow - and this allows the small optimisation in
1187     // OnClick() below to work
1188     rect.x = wxMax( (GetSize().x - m_widthCol*7) /2 , 0 );
1189
1190     rect.y = (m_heightRow * GetWeek(date)) + m_rowOffset;
1191
1192     rect.width = 7*m_widthCol;
1193     rect.height = m_heightRow;
1194
1195 #ifdef __WXMSW__
1196     // VZ: for some reason, the selected date seems to occupy more space under
1197     //     MSW - this is probably some bug in the font size calculations, but I
1198     //     don't know where exactly. This fix is ugly and leads to more
1199     //     refreshes than really needed, but without it the selected days
1200     //     leaves even more ugly underscores on screen.
1201     rect.Inflate(0, 1);
1202 #endif // MSW
1203
1204 #if DEBUG_PAINT
1205     wxLogDebug("*** refreshing week %d at (%d, %d)-(%d, %d)\n",
1206            GetWeek(date),
1207            rect.x, rect.y,
1208            rect.x + rect.width, rect.y + rect.height);
1209 #endif
1210
1211     Refresh(true, &rect);
1212 }
1213
1214 void wxCalendarCtrl::HighlightRange(wxPaintDC* pDC, const wxDateTime& fromdate, const wxDateTime& todate, const wxPen* pPen, const wxBrush* pBrush)
1215 {
1216     // Highlights the given range using pen and brush
1217     // Does nothing if todate < fromdate
1218
1219
1220 #if DEBUG_PAINT
1221     wxLogDebug("+++ HighlightRange: (%s) - (%s) +++", fromdate.Format("%d %m %Y"), todate.Format("%d %m %Y"));
1222 #endif
1223
1224     if ( todate >= fromdate )
1225     {
1226         // do stuff
1227         // date-coordinates
1228         int fd, fw;
1229         int td, tw;
1230
1231         // implicit: both dates must be currently shown - checked by GetDateCoord
1232         if ( GetDateCoord(fromdate, &fd, &fw) && GetDateCoord(todate, &td, &tw) )
1233         {
1234 #if DEBUG_PAINT
1235             wxLogDebug("Highlight range: (%i, %i) - (%i, %i)", fd, fw, td, tw);
1236 #endif
1237             if ( ( (tw - fw) == 1 ) && ( td < fd ) )
1238             {
1239                 // special case: interval 7 days or less not in same week
1240                 // split in two separate intervals
1241                 wxDateTime tfd = fromdate + wxDateSpan::Days(7-fd);
1242                 wxDateTime ftd = tfd + wxDateSpan::Day();
1243 #if DEBUG_PAINT
1244                 wxLogDebug("Highlight: Separate segments");
1245 #endif
1246                 // draw separately
1247                 HighlightRange(pDC, fromdate, tfd, pPen, pBrush);
1248                 HighlightRange(pDC, ftd, todate, pPen, pBrush);
1249             }
1250             else
1251             {
1252                 int numpoints;
1253                 wxPoint corners[8]; // potentially 8 corners in polygon
1254                 wxCoord x0 = wxMax( (GetSize().x - m_widthCol*7) /2 , 0 );
1255
1256                 if ( fw == tw )
1257                 {
1258                     // simple case: same week
1259                     numpoints = 4;
1260                     corners[0] = wxPoint(x0 + (fd - 1) * m_widthCol, (fw * m_heightRow) + m_rowOffset);
1261                     corners[1] = wxPoint(x0 + (fd - 1) * m_widthCol, ((fw + 1 ) * m_heightRow) + m_rowOffset);
1262                     corners[2] = wxPoint(x0 + td * m_widthCol, ((tw + 1) * m_heightRow) + m_rowOffset);
1263                     corners[3] = wxPoint(x0 + td * m_widthCol, (tw * m_heightRow) + m_rowOffset);
1264                 }
1265                 else
1266                 {
1267                     int cidx = 0;
1268                     // "complex" polygon
1269                     corners[cidx] = wxPoint(x0 + (fd - 1) * m_widthCol, (fw * m_heightRow) + m_rowOffset); cidx++;
1270
1271                     if ( fd > 1 )
1272                     {
1273                         corners[cidx] = wxPoint(x0 + (fd - 1) * m_widthCol, ((fw + 1) * m_heightRow) + m_rowOffset); cidx++;
1274                         corners[cidx] = wxPoint(x0, ((fw + 1) * m_heightRow) + m_rowOffset); cidx++;
1275                     }
1276
1277                     corners[cidx] = wxPoint(x0, ((tw + 1) * m_heightRow) + m_rowOffset); cidx++;
1278                     corners[cidx] = wxPoint(x0 + td * m_widthCol, ((tw + 1) * m_heightRow) + m_rowOffset); cidx++;
1279
1280                     if ( td < 7 )
1281                     {
1282                         corners[cidx] = wxPoint(x0 + td * m_widthCol, (tw * m_heightRow) + m_rowOffset); cidx++;
1283                         corners[cidx] = wxPoint(x0 + 7 * m_widthCol, (tw * m_heightRow) + m_rowOffset); cidx++;
1284                     }
1285
1286                     corners[cidx] = wxPoint(x0 + 7 * m_widthCol, (fw * m_heightRow) + m_rowOffset); cidx++;
1287
1288                     numpoints = cidx;
1289                 }
1290
1291                 // draw the polygon
1292                 pDC->SetBrush(*pBrush);
1293                 pDC->SetPen(*pPen);
1294                 pDC->DrawPolygon(numpoints, corners);
1295             }
1296         }
1297     }
1298     // else do nothing
1299 #if DEBUG_PAINT
1300     wxLogDebug("--- HighlightRange ---");
1301 #endif
1302 }
1303
1304 bool wxCalendarCtrl::GetDateCoord(const wxDateTime& date, int *day, int *week) const
1305 {
1306     bool retval = true;
1307
1308 #if DEBUG_PAINT
1309     wxLogDebug("+++ GetDateCoord: (%s) +++", date.Format("%d %m %Y"));
1310 #endif
1311
1312     if ( IsDateShown(date) )
1313     {
1314         bool startOnMonday = ( GetWindowStyle() & wxCAL_MONDAY_FIRST ) != 0;
1315
1316         // Find day
1317         *day = date.GetWeekDay();
1318
1319         if ( *day == 0 ) // sunday
1320         {
1321             *day = ( startOnMonday ) ? 7 : 1;
1322         }
1323         else
1324         {
1325             *day += ( startOnMonday ) ? 0 : 1;
1326         }
1327
1328         int targetmonth = date.GetMonth() + (12 * date.GetYear());
1329         int thismonth = m_date.GetMonth() + (12 * m_date.GetYear());
1330
1331         // Find week
1332         if ( targetmonth == thismonth )
1333         {
1334             *week = GetWeek(date);
1335         }
1336         else
1337         {
1338             if ( targetmonth < thismonth )
1339             {
1340                 *week = 1; // trivial
1341             }
1342             else // targetmonth > thismonth
1343             {
1344                 wxDateTime ldcm;
1345                 int lastweek;
1346                 int lastday;
1347
1348                 // get the datecoord of the last day in the month currently shown
1349 #if DEBUG_PAINT
1350                 wxLogDebug("     +++ LDOM +++");
1351 #endif
1352                 GetDateCoord(ldcm.SetToLastMonthDay(m_date.GetMonth(), m_date.GetYear()), &lastday, &lastweek);
1353 #if DEBUG_PAINT
1354                 wxLogDebug("     --- LDOM ---");
1355 #endif
1356
1357                 wxTimeSpan span = date - ldcm;
1358
1359                 int daysfromlast = span.GetDays();
1360 #if DEBUG_PAINT
1361                 wxLogDebug("daysfromlast: %i", daysfromlast);
1362 #endif
1363                 if ( daysfromlast + lastday > 7 ) // past week boundary
1364                 {
1365                     int wholeweeks = (daysfromlast / 7);
1366                     *week = wholeweeks + lastweek;
1367                     if ( (daysfromlast - (7 * wholeweeks) + lastday) > 7 )
1368                     {
1369                         *week += 1;
1370                     }
1371                 }
1372                 else
1373                 {
1374                     *week = lastweek;
1375                 }
1376             }
1377         }
1378     }
1379     else
1380     {
1381         *day = -1;
1382         *week = -1;
1383         retval = false;
1384     }
1385
1386 #if DEBUG_PAINT
1387     wxLogDebug("--- GetDateCoord: (%s) = (%i, %i) ---", date.Format("%d %m %Y"), *day, *week);
1388 #endif
1389
1390     return retval;
1391 }
1392
1393 // ----------------------------------------------------------------------------
1394 // mouse handling
1395 // ----------------------------------------------------------------------------
1396
1397 void wxCalendarCtrl::OnDClick(wxMouseEvent& event)
1398 {
1399     if ( HitTest(event.GetPosition()) != wxCAL_HITTEST_DAY )
1400     {
1401         event.Skip();
1402     }
1403     else
1404     {
1405         GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED);
1406     }
1407 }
1408
1409 void wxCalendarCtrl::OnClick(wxMouseEvent& event)
1410 {
1411     wxDateTime date;
1412     wxDateTime::WeekDay wday;
1413     switch ( HitTest(event.GetPosition(), &date, &wday) )
1414     {
1415         case wxCAL_HITTEST_DAY:
1416             if ( IsDateInRange(date) )
1417             {
1418                 ChangeDay(date);
1419
1420                 GenerateEvents(wxEVT_CALENDAR_DAY_CHANGED,
1421                                wxEVT_CALENDAR_SEL_CHANGED);
1422             }
1423             break;
1424
1425         case wxCAL_HITTEST_HEADER:
1426             {
1427                 wxCalendarEvent eventWd(this, wxEVT_CALENDAR_WEEKDAY_CLICKED);
1428                 eventWd.m_wday = wday;
1429                 (void)GetEventHandler()->ProcessEvent(eventWd);
1430             }
1431             break;
1432
1433         case wxCAL_HITTEST_DECMONTH:
1434         case wxCAL_HITTEST_INCMONTH:
1435         case wxCAL_HITTEST_SURROUNDING_WEEK:
1436             SetDateAndNotify(date); // we probably only want to refresh the control. No notification.. (maybe as an option?)
1437             break;
1438
1439         default:
1440             wxFAIL_MSG(_T("unknown hittest code"));
1441             // fall through
1442
1443         case wxCAL_HITTEST_NOWHERE:
1444             event.Skip();
1445             break;
1446     }
1447 }
1448
1449 wxCalendarHitTestResult wxCalendarCtrl::HitTest(const wxPoint& pos,
1450                                                 wxDateTime *date,
1451                                                 wxDateTime::WeekDay *wd)
1452 {
1453     RecalcGeometry();
1454     // use the correct x-pos
1455     wxCoord x0 = wxMax((GetSize().x - m_widthCol*7) /2, 0);
1456     wxPoint pos_corr = pos;
1457     pos_corr.x -= x0;
1458
1459     wxCoord y = pos_corr.y;
1460
1461 ///////////////////////////////////////////////////////////////////////////////////////////////////////
1462     if ( (GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
1463     {
1464         // Header: month
1465
1466         // we need to find out if the hit is on left arrow, on month or on right arrow
1467         // left arrow?
1468         if ( wxRegion(m_leftArrowRect).Contains(pos_corr) == 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 = GetLowerDateLimit();
1479                 }
1480             }
1481
1482             return wxCAL_HITTEST_DECMONTH;
1483         }
1484
1485         if ( wxRegion(m_rightArrowRect).Contains(pos_corr) == wxInRegion )
1486         {
1487             if ( date )
1488             {
1489                 if ( IsDateInRange(m_date + wxDateSpan::Month()) )
1490                 {
1491                     *date = m_date + wxDateSpan::Month();
1492                 }
1493                 else
1494                 {
1495                     *date = GetUpperDateLimit();
1496                 }
1497             }
1498
1499             return wxCAL_HITTEST_INCMONTH;
1500         }
1501
1502     }
1503
1504 ///////////////////////////////////////////////////////////////////////////////////////////////////////
1505     // Header: Days
1506
1507     int wday = pos_corr.x / m_widthCol;
1508 //    if ( y < m_heightRow )
1509     if ( y < (m_heightRow + m_rowOffset) )
1510     {
1511         if ( y > m_rowOffset )
1512         {
1513             if ( wd )
1514             {
1515                 if ( GetWindowStyle() & wxCAL_MONDAY_FIRST )
1516                 {
1517                     wday = wday == 6 ? 0 : wday + 1;
1518                 }
1519
1520                 *wd = (wxDateTime::WeekDay)wday;
1521             }
1522
1523             return wxCAL_HITTEST_HEADER;
1524         }
1525         else
1526         {
1527             return wxCAL_HITTEST_NOWHERE;
1528         }
1529     }
1530
1531 //    int week = (y - m_heightRow) / m_heightRow;
1532     int week = (y - (m_heightRow + m_rowOffset)) / m_heightRow;
1533     if ( week >= 6 || wday >= 7 )
1534     {
1535         return wxCAL_HITTEST_NOWHERE;
1536     }
1537
1538     wxDateTime dt = GetStartDate() + wxDateSpan::Days(7*week + wday);
1539
1540     if ( IsDateShown(dt) )
1541     {
1542         if ( date )
1543             *date = dt;
1544
1545         if ( dt.GetMonth() == m_date.GetMonth() )
1546         {
1547
1548             return wxCAL_HITTEST_DAY;
1549         }
1550         else
1551         {
1552             return wxCAL_HITTEST_SURROUNDING_WEEK;
1553         }
1554     }
1555     else
1556     {
1557         return wxCAL_HITTEST_NOWHERE;
1558     }
1559 }
1560
1561 // ----------------------------------------------------------------------------
1562 // subcontrols events handling
1563 // ----------------------------------------------------------------------------
1564
1565 void wxCalendarCtrl::OnMonthChange(wxCommandEvent& event)
1566 {
1567     wxDateTime::Tm tm = m_date.GetTm();
1568
1569     wxDateTime::Month mon = (wxDateTime::Month)event.GetInt();
1570     if ( tm.mday > wxDateTime::GetNumberOfDays(mon, tm.year) )
1571     {
1572         tm.mday = wxDateTime::GetNumberOfDays(mon, tm.year);
1573     }
1574
1575     wxDateTime target = wxDateTime(tm.mday, mon, tm.year);
1576
1577     ChangeMonth(&target);
1578     SetDateAndNotify(target);
1579 }
1580
1581 void wxCalendarCtrl::OnYearChange(wxCommandEvent& event)
1582 {
1583     int year = (int)event.GetInt();
1584     if ( year == INT_MIN )
1585     {
1586         // invalid year in the spin control, ignore it
1587         return;
1588     }
1589
1590     wxDateTime::Tm tm = m_date.GetTm();
1591
1592     if ( tm.mday > wxDateTime::GetNumberOfDays(tm.mon, year) )
1593     {
1594         tm.mday = wxDateTime::GetNumberOfDays(tm.mon, year);
1595     }
1596
1597     wxDateTime target = wxDateTime(tm.mday, tm.mon, year);
1598
1599     if ( ChangeYear(&target) )
1600     {
1601         SetDateAndNotify(target);
1602     }
1603     else
1604     {
1605         // In this case we don't want to change the date. That would put us
1606         // inside the same year but a strange number of months forward/back..
1607         m_spinYear->SetValue(target.GetYear());
1608     }
1609 }
1610
1611 void wxCalendarCtrl::OnYearTextChange(wxCommandEvent& event)
1612 {
1613     SetUserChangedYear();
1614     OnYearChange(event);
1615 }
1616
1617 // Responds to colour changes, and passes event on to children.
1618 void wxCalendarCtrl::OnSysColourChanged(wxSysColourChangedEvent& event)
1619 {
1620     // reinit colours
1621     InitColours();
1622
1623     // Propagate the event to the children
1624     wxControl::OnSysColourChanged(event);
1625
1626     // Redraw control area
1627     SetBackgroundColour(m_colBackground);
1628     Refresh();
1629 }
1630
1631 // ----------------------------------------------------------------------------
1632 // keyboard interface
1633 // ----------------------------------------------------------------------------
1634
1635 void wxCalendarCtrl::OnChar(wxKeyEvent& event)
1636 {
1637     wxDateTime target;
1638     switch ( event.GetKeyCode() )
1639     {
1640         case _T('+'):
1641         case WXK_ADD:
1642             target = m_date + wxDateSpan::Year();
1643             if ( ChangeYear(&target) )
1644             {
1645                 SetDateAndNotify(target);
1646             }
1647             break;
1648
1649         case _T('-'):
1650         case WXK_SUBTRACT:
1651             target = m_date - wxDateSpan::Year();
1652             if ( ChangeYear(&target) )
1653             {
1654                 SetDateAndNotify(target);
1655             }
1656             break;
1657
1658         case WXK_PAGEUP:
1659             target = m_date - wxDateSpan::Month();
1660             ChangeMonth(&target);
1661             SetDateAndNotify(target); // always
1662             break;
1663
1664         case WXK_PAGEDOWN:
1665             target = m_date + wxDateSpan::Month();
1666             ChangeMonth(&target);
1667             SetDateAndNotify(target); // always
1668             break;
1669
1670         case WXK_RIGHT:
1671             if ( event.ControlDown() )
1672             {
1673                 target = wxDateTime(m_date).SetToNextWeekDay(
1674                                  GetWindowStyle() & wxCAL_MONDAY_FIRST
1675                                  ? wxDateTime::Sun : wxDateTime::Sat);
1676                 if ( !IsDateInRange(target) )
1677                 {
1678                     target = GetUpperDateLimit();
1679                 }
1680                 SetDateAndNotify(target);
1681             }
1682             else
1683                 SetDateAndNotify(m_date + wxDateSpan::Day());
1684             break;
1685
1686         case WXK_LEFT:
1687             if ( event.ControlDown() )
1688             {
1689                 target = wxDateTime(m_date).SetToPrevWeekDay(
1690                                  GetWindowStyle() & wxCAL_MONDAY_FIRST
1691                                  ? wxDateTime::Mon : wxDateTime::Sun);
1692                 if ( !IsDateInRange(target) )
1693                 {
1694                     target = GetLowerDateLimit();
1695                 }
1696                 SetDateAndNotify(target);
1697             }
1698             else
1699                 SetDateAndNotify(m_date - wxDateSpan::Day());
1700             break;
1701
1702         case WXK_UP:
1703             SetDateAndNotify(m_date - wxDateSpan::Week());
1704             break;
1705
1706         case WXK_DOWN:
1707             SetDateAndNotify(m_date + wxDateSpan::Week());
1708             break;
1709
1710         case WXK_HOME:
1711             if ( event.ControlDown() )
1712                 SetDateAndNotify(wxDateTime::Today());
1713             else
1714                 SetDateAndNotify(wxDateTime(1, m_date.GetMonth(), m_date.GetYear()));
1715             break;
1716
1717         case WXK_END:
1718             SetDateAndNotify(wxDateTime(m_date).SetToLastMonthDay());
1719             break;
1720
1721         case WXK_RETURN:
1722             GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED);
1723             break;
1724
1725         default:
1726             event.Skip();
1727     }
1728 }
1729
1730 // ----------------------------------------------------------------------------
1731 // holidays handling
1732 // ----------------------------------------------------------------------------
1733
1734 void wxCalendarCtrl::EnableHolidayDisplay(bool display)
1735 {
1736     long style = GetWindowStyle();
1737     if ( display )
1738         style |= wxCAL_SHOW_HOLIDAYS;
1739     else
1740         style &= ~wxCAL_SHOW_HOLIDAYS;
1741
1742     SetWindowStyle(style);
1743
1744     if ( display )
1745         SetHolidayAttrs();
1746     else
1747         ResetHolidayAttrs();
1748
1749     Refresh();
1750 }
1751
1752 void wxCalendarCtrl::SetHolidayAttrs()
1753 {
1754     if ( GetWindowStyle() & wxCAL_SHOW_HOLIDAYS )
1755     {
1756         ResetHolidayAttrs();
1757
1758         wxDateTime::Tm tm = m_date.GetTm();
1759         wxDateTime dtStart(1, tm.mon, tm.year),
1760                    dtEnd = dtStart.GetLastMonthDay();
1761
1762         wxDateTimeArray hol;
1763         wxDateTimeHolidayAuthority::GetHolidaysInRange(dtStart, dtEnd, hol);
1764
1765         size_t count = hol.GetCount();
1766         for ( size_t n = 0; n < count; n++ )
1767         {
1768             SetHoliday(hol[n].GetDay());
1769         }
1770     }
1771 }
1772
1773 void wxCalendarCtrl::SetHoliday(size_t day)
1774 {
1775     wxCHECK_RET( day > 0 && day < 32, _T("invalid day in SetHoliday") );
1776
1777     wxCalendarDateAttr *attr = GetAttr(day);
1778     if ( !attr )
1779     {
1780         attr = new wxCalendarDateAttr;
1781     }
1782
1783     attr->SetHoliday(true);
1784
1785     // can't use SetAttr() because it would delete this pointer
1786     m_attrs[day - 1] = attr;
1787 }
1788
1789 void wxCalendarCtrl::ResetHolidayAttrs()
1790 {
1791     for ( size_t day = 0; day < 31; day++ )
1792     {
1793         if ( m_attrs[day] )
1794         {
1795             m_attrs[day]->SetHoliday(false);
1796         }
1797     }
1798 }
1799
1800
1801 //static
1802 wxVisualAttributes
1803 wxCalendarCtrl::GetClassDefaultAttributes(wxWindowVariant variant)
1804 {
1805     // Use the same color scheme as wxListBox
1806     return wxListBox::GetClassDefaultAttributes(variant);
1807 }
1808
1809 #endif // wxUSE_CALENDARCTRL