src/generic/calctrlg.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/calctrlg.cpp
   3 // Purpose:     implementation of the wxGenericCalendarCtrl
   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
  38 #if wxUSE_CALENDARCTRL
  39
  40 #include "wx/spinctrl.h"
  41 #include "wx/calctrl.h"
  42 #include "wx/generic/calctrlg.h"
  43
  44 #define DEBUG_PAINT 0
  45
  46 // ----------------------------------------------------------------------------
  47 // wxWin macros
  48 // ----------------------------------------------------------------------------
  49
  50 BEGIN_EVENT_TABLE(wxGenericCalendarCtrl, wxControl)
  51     EVT_PAINT(wxGenericCalendarCtrl::OnPaint)
  52
  53     EVT_CHAR(wxGenericCalendarCtrl::OnChar)
  54
  55     EVT_LEFT_DOWN(wxGenericCalendarCtrl::OnClick)
  56     EVT_LEFT_DCLICK(wxGenericCalendarCtrl::OnDClick)
  57
  58     EVT_SYS_COLOUR_CHANGED(wxGenericCalendarCtrl::OnSysColourChanged)
  59 END_EVENT_TABLE()
  60
  61 #if wxUSE_EXTENDED_RTTI
  62 WX_DEFINE_FLAGS( wxCalendarCtrlStyle )
  63
  64 wxBEGIN_FLAGS( wxCalendarCtrlStyle )
  65     // new style border flags, we put them first to
  66     // use them for streaming out
  67     wxFLAGS_MEMBER(wxBORDER_SIMPLE)
  68     wxFLAGS_MEMBER(wxBORDER_SUNKEN)
  69     wxFLAGS_MEMBER(wxBORDER_DOUBLE)
  70     wxFLAGS_MEMBER(wxBORDER_RAISED)
  71     wxFLAGS_MEMBER(wxBORDER_STATIC)
  72     wxFLAGS_MEMBER(wxBORDER_NONE)
  73
  74     // old style border flags
  75     wxFLAGS_MEMBER(wxSIMPLE_BORDER)
  76     wxFLAGS_MEMBER(wxSUNKEN_BORDER)
  77     wxFLAGS_MEMBER(wxDOUBLE_BORDER)
  78     wxFLAGS_MEMBER(wxRAISED_BORDER)
  79     wxFLAGS_MEMBER(wxSTATIC_BORDER)
  80     wxFLAGS_MEMBER(wxBORDER)
  81
  82     // standard window styles
  83     wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
  84     wxFLAGS_MEMBER(wxCLIP_CHILDREN)
  85     wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
  86     wxFLAGS_MEMBER(wxWANTS_CHARS)
  87     wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
  88     wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
  89     wxFLAGS_MEMBER(wxVSCROLL)
  90     wxFLAGS_MEMBER(wxHSCROLL)
  91
  92     wxFLAGS_MEMBER(wxCAL_SUNDAY_FIRST)
  93     wxFLAGS_MEMBER(wxCAL_MONDAY_FIRST)
  94     wxFLAGS_MEMBER(wxCAL_SHOW_HOLIDAYS)
  95     wxFLAGS_MEMBER(wxCAL_NO_YEAR_CHANGE)
  96     wxFLAGS_MEMBER(wxCAL_NO_MONTH_CHANGE)
  97     wxFLAGS_MEMBER(wxCAL_SEQUENTIAL_MONTH_SELECTION)
  98     wxFLAGS_MEMBER(wxCAL_SHOW_SURROUNDING_WEEKS)
  99
 100 wxEND_FLAGS( wxCalendarCtrlStyle )
 101
 102 IMPLEMENT_DYNAMIC_CLASS_XTI(wxGenericCalendarCtrl, wxControl,"wx/calctrl.h")
 103
 104 wxBEGIN_PROPERTIES_TABLE(wxGenericCalendarCtrl)
 105     wxEVENT_RANGE_PROPERTY( Updated , wxEVT_CALENDAR_SEL_CHANGED , wxEVT_CALENDAR_WEEKDAY_CLICKED , wxCalendarEvent )
 106     wxHIDE_PROPERTY( Children )
 107     wxPROPERTY( Date,wxDateTime, SetDate , GetDate, , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
 108     wxPROPERTY_FLAGS( WindowStyle , wxCalendarCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
 109 wxEND_PROPERTIES_TABLE()
 110
 111 wxBEGIN_HANDLERS_TABLE(wxGenericCalendarCtrl)
 112 wxEND_HANDLERS_TABLE()
 113
 114 wxCONSTRUCTOR_6( wxGenericCalendarCtrl , wxWindow* , Parent , wxWindowID , Id , wxDateTime , Date , wxPoint , Position , wxSize , Size , long , WindowStyle )
 115 #else
 116 IMPLEMENT_DYNAMIC_CLASS(wxGenericCalendarCtrl, wxControl)
 117 #endif
 118
 119 // ============================================================================
 120 // implementation
 121 // ============================================================================
 122
 123 // ----------------------------------------------------------------------------
 124 // helper functions
 125 // ----------------------------------------------------------------------------
 126
 127 namespace
 128 {
 129
 130 // add attributes that are set in attr
 131 void AddAttr(wxCalendarDateAttr *self, const wxCalendarDateAttr& attr)
 132 {
 133     if (attr.HasTextColour())
 134         self->SetTextColour(attr.GetTextColour());
 135     if (attr.HasBackgroundColour())
 136         self->SetBackgroundColour(attr.GetBackgroundColour());
 137     if (attr.HasBorderColour())
 138         self->SetBorderColour(attr.GetBorderColour());
 139     if (attr.HasFont())
 140         self->SetFont(attr.GetFont());
 141     if (attr.HasBorder())
 142         self->SetBorder(attr.GetBorder());
 143     if (attr.IsHoliday())
 144         self->SetHoliday(true);
 145 }
 146
 147 // remove attributes that are set in attr
 148 void DelAttr(wxCalendarDateAttr *self, const wxCalendarDateAttr &attr)
 149 {
 150     if (attr.HasTextColour())
 151         self->SetTextColour(wxNullColour);
 152     if (attr.HasBackgroundColour())
 153         self->SetBackgroundColour(wxNullColour);
 154     if (attr.HasBorderColour())
 155         self->SetBorderColour(wxNullColour);
 156     if (attr.HasFont())
 157         self->SetFont(wxNullFont);
 158     if (attr.HasBorder())
 159         self->SetBorder(wxCAL_BORDER_NONE);
 160     if (attr.IsHoliday())
 161         self->SetHoliday(false);
 162 }
 163
 164 } // anonymous namespace
 165
 166 // ----------------------------------------------------------------------------
 167 // wxGenericCalendarCtrl
 168 // ----------------------------------------------------------------------------
 169
 170 wxGenericCalendarCtrl::wxGenericCalendarCtrl(wxWindow *parent,
 171                                              wxWindowID id,
 172                                              const wxDateTime& date,
 173                                              const wxPoint& pos,
 174                                              const wxSize& size,
 175                                              long style,
 176                                              const wxString& name)
 177 {
 178     Init();
 179
 180     (void)Create(parent, id, date, pos, size, style, name);
 181 }
 182
 183 void wxGenericCalendarCtrl::Init()
 184 {
 185     m_comboMonth = NULL;
 186     m_spinYear = NULL;
 187     m_staticYear = NULL;
 188     m_staticMonth = NULL;
 189
 190     m_userChangedYear = false;
 191
 192     m_widthCol =
 193     m_heightRow = 0;
 194
 195     wxDateTime::WeekDay wd;
 196     for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
 197     {
 198         m_weekdays[wd] = wxDateTime::GetWeekDayName(wd, wxDateTime::Name_Abbr);
 199     }
 200
 201     for ( size_t n = 0; n < WXSIZEOF(m_attrs); n++ )
 202     {
 203         m_attrs[n] = NULL;
 204     }
 205
 206     InitColours();
 207 }
 208
 209 void wxGenericCalendarCtrl::InitColours()
 210 {
 211     m_colHighlightFg = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
 212     m_colHighlightBg = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
 213     m_colBackground = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
 214     m_colSurrounding = wxSystemSettings::GetColour(wxSYS_COLOUR_GRAYTEXT);
 215
 216     m_colHolidayFg = *wxRED;
 217     // don't set m_colHolidayBg - by default, same as our bg colour
 218
 219     m_colHeaderFg = *wxBLUE;
 220     m_colHeaderBg = *wxLIGHT_GREY;
 221 }
 222
 223 bool wxGenericCalendarCtrl::Create(wxWindow *parent,
 224                                    wxWindowID id,
 225                                    const wxDateTime& date,
 226                                    const wxPoint& pos,
 227                                    const wxSize& size,
 228                                    long style,
 229                                    const wxString& name)
 230 {
 231     if ( !wxControl::Create(parent, id, pos, size,
 232                             style | wxCLIP_CHILDREN | wxWANTS_CHARS | wxFULL_REPAINT_ON_RESIZE,
 233                             wxDefaultValidator, name) )
 234     {
 235         return false;
 236     }
 237
 238     // needed to get the arrow keys normally used for the dialog navigation
 239     SetWindowStyle(style | wxWANTS_CHARS);
 240
 241     m_date = date.IsValid() ? date : wxDateTime::Today();
 242
 243     m_lowdate = wxDefaultDateTime;
 244     m_highdate = wxDefaultDateTime;
 245
 246     if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 247     {
 248         CreateYearSpinCtrl();
 249         m_staticYear = new wxStaticText(GetParent(), wxID_ANY, m_date.Format(_T("%Y")),
 250                                         wxDefaultPosition, wxDefaultSize,
 251                                         wxALIGN_CENTRE);
 252
 253         CreateMonthComboBox();
 254         m_staticMonth = new wxStaticText(GetParent(), wxID_ANY, m_date.Format(_T("%B")),
 255                                          wxDefaultPosition, wxDefaultSize,
 256                                          wxALIGN_CENTRE);
 257     }
 258
 259     ShowCurrentControls();
 260
 261     // we need to set the position as well because the main control position
 262     // is not the same as the one specified in pos if we have the controls
 263     // above it
 264     SetInitialSize(size);
 265     SetPosition(pos);
 266
 267     // Since we don't paint the whole background make sure that the platform
 268     // will use the right one.
 269     SetBackgroundColour(m_colBackground);
 270
 271     SetHolidayAttrs();
 272
 273     return true;
 274 }
 275
 276 wxGenericCalendarCtrl::~wxGenericCalendarCtrl()
 277 {
 278     for ( size_t n = 0; n < WXSIZEOF(m_attrs); n++ )
 279     {
 280         delete m_attrs[n];
 281     }
 282
 283     if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 284     {
 285         delete m_comboMonth;
 286         delete m_staticMonth;
 287         delete m_spinYear;
 288         delete m_staticYear;
 289     }
 290 }
 291
 292 void wxGenericCalendarCtrl::SetWindowStyleFlag(long style)
 293 {
 294     // changing this style doesn't work because the controls are not
 295     // created/shown/hidden accordingly
 296     wxASSERT_MSG( (style & wxCAL_SEQUENTIAL_MONTH_SELECTION) ==
 297                     (m_windowStyle & wxCAL_SEQUENTIAL_MONTH_SELECTION),
 298                   _T("wxCAL_SEQUENTIAL_MONTH_SELECTION can't be changed after creation") );
 299
 300     wxControl::SetWindowStyleFlag(style);
 301 }
 302
 303 // ----------------------------------------------------------------------------
 304 // Create the wxComboBox and wxSpinCtrl
 305 // ----------------------------------------------------------------------------
 306
 307 void wxGenericCalendarCtrl::CreateMonthComboBox()
 308 {
 309     m_comboMonth = new wxComboBox(GetParent(), wxID_ANY,
 310                                   wxEmptyString,
 311                                   wxDefaultPosition,
 312                                   wxDefaultSize,
 313                                   0, NULL,
 314                                   wxCB_READONLY | wxCLIP_SIBLINGS);
 315
 316     wxDateTime::Month m;
 317     for ( m = wxDateTime::Jan; m < wxDateTime::Inv_Month; wxNextMonth(m) )
 318     {
 319         m_comboMonth->Append(wxDateTime::GetMonthName(m));
 320     }
 321
 322     m_comboMonth->SetSelection(GetDate().GetMonth());
 323     m_comboMonth->SetSize(wxDefaultCoord,
 324                           wxDefaultCoord,
 325                           wxDefaultCoord,
 326                           wxDefaultCoord,
 327                           wxSIZE_AUTO_WIDTH|wxSIZE_AUTO_HEIGHT);
 328
 329     m_comboMonth->Connect(m_comboMonth->GetId(), wxEVT_COMMAND_COMBOBOX_SELECTED,
 330                           wxCommandEventHandler(wxGenericCalendarCtrl::OnMonthChange),
 331                           NULL, this);
 332 }
 333
 334 void wxGenericCalendarCtrl::CreateYearSpinCtrl()
 335 {
 336     m_spinYear = new wxSpinCtrl(GetParent(), wxID_ANY,
 337                                 GetDate().Format(_T("%Y")),
 338                                 wxDefaultPosition,
 339                                 wxDefaultSize,
 340                                 wxSP_ARROW_KEYS | wxCLIP_SIBLINGS,
 341                                 -4300, 10000, GetDate().GetYear());
 342
 343     m_spinYear->Connect(m_spinYear->GetId(), wxEVT_COMMAND_TEXT_UPDATED,
 344                         wxCommandEventHandler(wxGenericCalendarCtrl::OnYearTextChange),
 345                         NULL, this);
 346
 347     m_spinYear->Connect(m_spinYear->GetId(), wxEVT_COMMAND_SPINCTRL_UPDATED,
 348                         wxCommandEventHandler(wxGenericCalendarCtrl::OnYearChange),
 349                         NULL, this);
 350 }
 351
 352 // ----------------------------------------------------------------------------
 353 // forward wxWin functions to subcontrols
 354 // ----------------------------------------------------------------------------
 355
 356 bool wxGenericCalendarCtrl::Destroy()
 357 {
 358     if ( m_staticYear )
 359         m_staticYear->Destroy();
 360     if ( m_spinYear )
 361         m_spinYear->Destroy();
 362     if ( m_comboMonth )
 363         m_comboMonth->Destroy();
 364     if ( m_staticMonth )
 365         m_staticMonth->Destroy();
 366
 367     m_staticYear = NULL;
 368     m_spinYear = NULL;
 369     m_comboMonth = NULL;
 370     m_staticMonth = NULL;
 371
 372     return wxControl::Destroy();
 373 }
 374
 375 bool wxGenericCalendarCtrl::Show(bool show)
 376 {
 377     if ( !wxControl::Show(show) )
 378     {
 379         return false;
 380     }
 381
 382     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 383     {
 384         if ( GetMonthControl() )
 385         {
 386             GetMonthControl()->Show(show);
 387             GetYearControl()->Show(show);
 388         }
 389     }
 390
 391     return true;
 392 }
 393
 394 bool wxGenericCalendarCtrl::Enable(bool enable)
 395 {
 396     if ( !wxControl::Enable(enable) )
 397     {
 398         return false;
 399     }
 400
 401     if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 402     {
 403         GetMonthControl()->Enable(enable);
 404         GetYearControl()->Enable(enable);
 405     }
 406
 407     return true;
 408 }
 409
 410 // ----------------------------------------------------------------------------
 411 // enable/disable month/year controls
 412 // ----------------------------------------------------------------------------
 413
 414 void wxGenericCalendarCtrl::ShowCurrentControls()
 415 {
 416     if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 417     {
 418         if ( AllowMonthChange() )
 419         {
 420             m_comboMonth->Show();
 421             m_staticMonth->Hide();
 422
 423             if ( AllowYearChange() )
 424             {
 425                 m_spinYear->Show();
 426                 m_staticYear->Hide();
 427
 428                 // skip the rest
 429                 return;
 430             }
 431         }
 432         else
 433         {
 434             m_comboMonth->Hide();
 435             m_staticMonth->Show();
 436         }
 437
 438         // year change not allowed here
 439         m_spinYear->Hide();
 440         m_staticYear->Show();
 441     }
 442     //else: these controls are not even created, don't show/hide them
 443 }
 444
 445 wxControl *wxGenericCalendarCtrl::GetMonthControl() const
 446 {
 447     return AllowMonthChange() ? (wxControl *)m_comboMonth : (wxControl *)m_staticMonth;
 448 }
 449
 450 wxControl *wxGenericCalendarCtrl::GetYearControl() const
 451 {
 452     return AllowYearChange() ? (wxControl *)m_spinYear : (wxControl *)m_staticYear;
 453 }
 454
 455 void wxGenericCalendarCtrl::EnableYearChange(bool enable)
 456 {
 457     if ( enable != AllowYearChange() )
 458     {
 459         long style = GetWindowStyle();
 460         if ( enable )
 461             style &= ~wxCAL_NO_YEAR_CHANGE;
 462         else
 463             style |= wxCAL_NO_YEAR_CHANGE;
 464         SetWindowStyle(style);
 465
 466         ShowCurrentControls();
 467         if ( GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION )
 468         {
 469             Refresh();
 470         }
 471     }
 472 }
 473
 474 bool wxGenericCalendarCtrl::EnableMonthChange(bool enable)
 475 {
 476     if ( !wxCalendarCtrlBase::EnableMonthChange(enable) )
 477         return false;
 478
 479     ShowCurrentControls();
 480     if ( GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION )
 481         Refresh();
 482
 483     return true;
 484 }
 485
 486 // ----------------------------------------------------------------------------
 487 // changing date
 488 // ----------------------------------------------------------------------------
 489
 490 bool wxGenericCalendarCtrl::SetDate(const wxDateTime& date)
 491 {
 492     bool retval = true;
 493
 494     bool sameMonth = m_date.GetMonth() == date.GetMonth(),
 495          sameYear = m_date.GetYear() == date.GetYear();
 496
 497     if ( IsDateInRange(date) )
 498     {
 499         if ( sameMonth && sameYear )
 500         {
 501             // just change the day
 502             ChangeDay(date);
 503         }
 504         else
 505         {
 506             if ( AllowMonthChange() && (AllowYearChange() || sameYear) )
 507             {
 508                 // change everything
 509                 m_date = date;
 510
 511                 if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 512                 {
 513                     // update the controls
 514                     m_comboMonth->SetSelection(m_date.GetMonth());
 515
 516                     if ( AllowYearChange() )
 517                     {
 518                         if ( !m_userChangedYear )
 519                             m_spinYear->SetValue(m_date.Format(_T("%Y")));
 520                     }
 521                 }
 522
 523                 // as the month changed, holidays did too
 524                 SetHolidayAttrs();
 525
 526                 // update the calendar
 527                 Refresh();
 528             }
 529             else
 530             {
 531                 // forbidden
 532                 retval = false;
 533             }
 534         }
 535     }
 536
 537     m_userChangedYear = false;
 538
 539     return retval;
 540 }
 541
 542 void wxGenericCalendarCtrl::ChangeDay(const wxDateTime& date)
 543 {
 544     if ( m_date != date )
 545     {
 546         // we need to refresh the row containing the old date and the one
 547         // containing the new one
 548         wxDateTime dateOld = m_date;
 549         m_date = date;
 550
 551         RefreshDate(dateOld);
 552
 553         // if the date is in the same row, it was already drawn correctly
 554         if ( GetWeek(m_date) != GetWeek(dateOld) )
 555         {
 556             RefreshDate(m_date);
 557         }
 558     }
 559 }
 560
 561 void wxGenericCalendarCtrl::SetDateAndNotify(const wxDateTime& date)
 562 {
 563     const wxDateTime dateOld = GetDate();
 564     if ( date != dateOld && SetDate(date) )
 565     {
 566         GenerateAllChangeEvents(dateOld);
 567     }
 568 }
 569
 570 // ----------------------------------------------------------------------------
 571 // date range
 572 // ----------------------------------------------------------------------------
 573
 574 bool wxGenericCalendarCtrl::SetLowerDateLimit(const wxDateTime& date /* = wxDefaultDateTime */)
 575 {
 576     bool retval = true;
 577
 578     if ( !(date.IsValid()) || ( ( m_highdate.IsValid() ) ? ( date <= m_highdate ) : true ) )
 579     {
 580         m_lowdate = date;
 581     }
 582     else
 583     {
 584         retval = false;
 585     }
 586
 587     return retval;
 588 }
 589
 590 bool wxGenericCalendarCtrl::SetUpperDateLimit(const wxDateTime& date /* = wxDefaultDateTime */)
 591 {
 592     bool retval = true;
 593
 594     if ( !(date.IsValid()) || ( ( m_lowdate.IsValid() ) ? ( date >= m_lowdate ) : true ) )
 595     {
 596         m_highdate = date;
 597     }
 598     else
 599     {
 600         retval = false;
 601     }
 602
 603     return retval;
 604 }
 605
 606 bool wxGenericCalendarCtrl::SetDateRange(const wxDateTime& lowerdate /* = wxDefaultDateTime */, const wxDateTime& upperdate /* = wxDefaultDateTime */)
 607 {
 608     bool retval = true;
 609
 610     if (
 611         ( !( lowerdate.IsValid() ) || ( ( upperdate.IsValid() ) ? ( lowerdate <= upperdate ) : true ) ) &&
 612         ( !( upperdate.IsValid() ) || ( ( lowerdate.IsValid() ) ? ( upperdate >= lowerdate ) : true ) ) )
 613     {
 614         m_lowdate = lowerdate;
 615         m_highdate = upperdate;
 616     }
 617     else
 618     {
 619         retval = false;
 620     }
 621
 622     return retval;
 623 }
 624
 625 bool wxGenericCalendarCtrl::GetDateRange(wxDateTime *lowerdate,
 626                                          wxDateTime *upperdate) const
 627 {
 628     if ( lowerdate )
 629         *lowerdate = m_lowdate;
 630     if ( upperdate )
 631         *upperdate = m_highdate;
 632
 633     return m_lowdate.IsValid() || m_highdate.IsValid();
 634 }
 635
 636 // ----------------------------------------------------------------------------
 637 // date helpers
 638 // ----------------------------------------------------------------------------
 639
 640 wxDateTime wxGenericCalendarCtrl::GetStartDate() const
 641 {
 642     wxDateTime::Tm tm = m_date.GetTm();
 643
 644     wxDateTime date = wxDateTime(1, tm.mon, tm.year);
 645
 646     // rewind back
 647     date.SetToPrevWeekDay(GetWindowStyle() & wxCAL_MONDAY_FIRST
 648                           ? wxDateTime::Mon : wxDateTime::Sun);
 649
 650     if ( GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS )
 651     {
 652         // We want to offset the calendar if we start on the first..
 653         if ( date.GetDay() == 1 )
 654         {
 655             date -= wxDateSpan::Week();
 656         }
 657     }
 658
 659     return date;
 660 }
 661
 662 bool wxGenericCalendarCtrl::IsDateShown(const wxDateTime& date) const
 663 {
 664     if ( !(GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) )
 665     {
 666         return date.GetMonth() == m_date.GetMonth();
 667     }
 668     else
 669     {
 670         return true;
 671     }
 672 }
 673
 674 bool wxGenericCalendarCtrl::IsDateInRange(const wxDateTime& date) const
 675 {
 676     // Check if the given date is in the range specified
 677     return ( ( ( m_lowdate.IsValid() ) ? ( date >= m_lowdate ) : true )
 678         && ( ( m_highdate.IsValid() ) ? ( date <= m_highdate ) : true ) );
 679 }
 680
 681 bool wxGenericCalendarCtrl::ChangeYear(wxDateTime* target) const
 682 {
 683     bool retval = false;
 684
 685     if ( !(IsDateInRange(*target)) )
 686     {
 687         if ( target->GetYear() < m_date.GetYear() )
 688         {
 689             if ( target->GetYear() >= GetLowerDateLimit().GetYear() )
 690             {
 691                 *target = GetLowerDateLimit();
 692                 retval = true;
 693             }
 694             else
 695             {
 696                 *target = m_date;
 697             }
 698         }
 699         else
 700         {
 701             if ( target->GetYear() <= GetUpperDateLimit().GetYear() )
 702             {
 703                 *target = GetUpperDateLimit();
 704                 retval = true;
 705             }
 706             else
 707             {
 708                 *target = m_date;
 709             }
 710         }
 711     }
 712     else
 713     {
 714         retval = true;
 715     }
 716
 717     return retval;
 718 }
 719
 720 bool wxGenericCalendarCtrl::ChangeMonth(wxDateTime* target) const
 721 {
 722     bool retval = true;
 723
 724     if ( !(IsDateInRange(*target)) )
 725     {
 726         retval = false;
 727
 728         if ( target->GetMonth() < m_date.GetMonth() )
 729         {
 730             *target = GetLowerDateLimit();
 731         }
 732         else
 733         {
 734             *target = GetUpperDateLimit();
 735         }
 736     }
 737
 738     return retval;
 739 }
 740
 741 size_t wxGenericCalendarCtrl::GetWeek(const wxDateTime& date) const
 742 {
 743     size_t retval = date.GetWeekOfMonth(GetWindowStyle() & wxCAL_MONDAY_FIRST
 744                                    ? wxDateTime::Monday_First
 745                                    : wxDateTime::Sunday_First);
 746
 747     if ( (GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) )
 748     {
 749         // we need to offset an extra week if we "start" on the 1st of the month
 750         wxDateTime::Tm tm = date.GetTm();
 751
 752         wxDateTime datetest = wxDateTime(1, tm.mon, tm.year);
 753
 754         // rewind back
 755         datetest.SetToPrevWeekDay(GetWindowStyle() & wxCAL_MONDAY_FIRST
 756                               ? wxDateTime::Mon : wxDateTime::Sun);
 757
 758         if ( datetest.GetDay() == 1 )
 759         {
 760             retval += 1;
 761         }
 762     }
 763
 764     return retval;
 765 }
 766
 767 // ----------------------------------------------------------------------------
 768 // size management
 769 // ----------------------------------------------------------------------------
 770
 771 // this is a composite control and it must arrange its parts each time its
 772 // size or position changes: the combobox and spinctrl are along the top of
 773 // the available area and the calendar takes up therest of the space
 774
 775 // the static controls are supposed to be always smaller than combo/spin so we
 776 // always use the latter for size calculations and position the static to take
 777 // the same space
 778
 779 // the constants used for the layout
 780 #define VERT_MARGIN     5           // distance between combo and calendar
 781 #ifdef __WXMAC__
 782 #define HORZ_MARGIN    5           //                            spin
 783 #else
 784 #define HORZ_MARGIN    15           //                            spin
 785 #endif
 786 wxSize wxGenericCalendarCtrl::DoGetBestSize() const
 787 {
 788     // calc the size of the calendar
 789     wx_const_cast(wxGenericCalendarCtrl *, this)->RecalcGeometry();
 790
 791     wxCoord width = 7*m_widthCol,
 792             height = 7*m_heightRow + m_rowOffset;
 793
 794     if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 795     {
 796         const wxSize bestSizeCombo = m_comboMonth->GetBestSize();
 797
 798         height += wxMax(bestSizeCombo.y, m_spinYear->GetBestSize().y)
 799                     + VERT_MARGIN;
 800
 801         wxCoord w2 = bestSizeCombo.x + HORZ_MARGIN + GetCharWidth()*6;
 802         if ( width < w2 )
 803             width = w2;
 804     }
 805
 806     wxSize best(width, height);
 807     if ( !HasFlag(wxBORDER_NONE) )
 808     {
 809         best += GetWindowBorderSize();
 810     }
 811
 812     CacheBestSize(best);
 813     return best;
 814 }
 815
 816 void wxGenericCalendarCtrl::DoMoveWindow(int x, int y, int width, int height)
 817 {
 818     int yDiff;
 819
 820     if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) && m_staticMonth )
 821     {
 822         wxSize sizeCombo = m_comboMonth->GetEffectiveMinSize();
 823         wxSize sizeStatic = m_staticMonth->GetSize();
 824         wxSize sizeSpin = m_spinYear->GetSize();
 825
 826         int maxHeight = wxMax(sizeSpin.y, sizeCombo.y);
 827         int dy = (maxHeight - sizeStatic.y) / 2;
 828         m_comboMonth->Move(x, y);
 829         m_staticMonth->SetSize(x, y + dy, sizeCombo.x, -1, sizeStatic.y);
 830
 831         int xDiff = sizeCombo.x + HORZ_MARGIN;
 832
 833         m_spinYear->SetSize(x + xDiff, y, width - xDiff, maxHeight);
 834         m_staticYear->SetSize(x + xDiff, y + dy, width - xDiff, sizeStatic.y);
 835
 836         yDiff = maxHeight + VERT_MARGIN;
 837     }
 838     else // no controls on the top
 839     {
 840         yDiff = 0;
 841     }
 842
 843     wxControl::DoMoveWindow(x, y + yDiff, width, height - yDiff);
 844 }
 845
 846 void wxGenericCalendarCtrl::RecalcGeometry()
 847 {
 848     wxClientDC dc(this);
 849
 850     dc.SetFont(GetFont());
 851
 852     // determine the column width (weekday names are not necessarily wider
 853     // than the numbers (in some languages), so let's not assume that they are)
 854     m_widthCol = 0;
 855     for ( int day = 10; day <= 31; day++)
 856     {
 857         wxCoord width;
 858         dc.GetTextExtent(wxString::Format(wxT("%d"), day), &width, &m_heightRow);
 859         if ( width > m_widthCol )
 860         {
 861             // 1.5 times the width gives nice margins even if the weekday
 862             // names are short
 863             m_widthCol = width+width/2;
 864         }
 865     }
 866     wxDateTime::WeekDay wd;
 867     for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
 868     {
 869         wxCoord width;
 870         dc.GetTextExtent(m_weekdays[wd], &width, &m_heightRow);
 871         if ( width > m_widthCol )
 872         {
 873             m_widthCol = width;
 874         }
 875     }
 876
 877     // leave some margins
 878     m_widthCol += 2;
 879     m_heightRow += 2;
 880
 881     m_rowOffset = HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) ? m_heightRow : 0; // conditional in relation to style
 882 }
 883
 884 // ----------------------------------------------------------------------------
 885 // drawing
 886 // ----------------------------------------------------------------------------
 887
 888 void wxGenericCalendarCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
 889 {
 890     wxPaintDC dc(this);
 891
 892     dc.SetFont(GetFont());
 893
 894     RecalcGeometry();
 895
 896 #if DEBUG_PAINT
 897     wxLogDebug("--- starting to paint, selection: %s, week %u\n",
 898            m_date.Format("%a %d-%m-%Y %H:%M:%S").c_str(),
 899            GetWeek(m_date));
 900 #endif
 901
 902     wxCoord y = 0;
 903     wxCoord x0 = wxMax( (GetSize().x - m_widthCol*7) /2 , 0 );
 904
 905     if ( HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
 906     {
 907         // draw the sequential month-selector
 908
 909         dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
 910         dc.SetTextForeground(*wxBLACK);
 911         dc.SetBrush(wxBrush(m_colHeaderBg, wxBRUSHSTYLE_SOLID));
 912         dc.SetPen(wxPen(m_colHeaderBg, 1, wxPENSTYLE_SOLID));
 913         dc.DrawRectangle(0, y, GetClientSize().x, m_heightRow);
 914
 915         // Get extent of month-name + year
 916         wxCoord monthw, monthh;
 917         wxString headertext = m_date.Format(wxT("%B %Y"));
 918         dc.GetTextExtent(headertext, &monthw, &monthh);
 919
 920         // draw month-name centered above weekdays
 921         wxCoord monthx = ((m_widthCol * 7) - monthw) / 2 + x0;
 922         wxCoord monthy = ((m_heightRow - monthh) / 2) + y;
 923         dc.DrawText(headertext, monthx,  monthy);
 924
 925         // calculate the "month-arrows"
 926         wxPoint leftarrow[3];
 927         wxPoint rightarrow[3];
 928
 929         int arrowheight = monthh / 2;
 930
 931         leftarrow[0] = wxPoint(0, arrowheight / 2);
 932         leftarrow[1] = wxPoint(arrowheight / 2, 0);
 933         leftarrow[2] = wxPoint(arrowheight / 2, arrowheight - 1);
 934
 935         rightarrow[0] = wxPoint(0,0);
 936         rightarrow[1] = wxPoint(arrowheight / 2, arrowheight / 2);
 937         rightarrow[2] = wxPoint(0, arrowheight - 1);
 938
 939         // draw the "month-arrows"
 940
 941         wxCoord arrowy = (m_heightRow - arrowheight) / 2;
 942         wxCoord larrowx = (m_widthCol - (arrowheight / 2)) / 2 + x0;
 943         wxCoord rarrowx = ((m_widthCol - (arrowheight / 2)) / 2) + m_widthCol*6 + x0;
 944         m_leftArrowRect = m_rightArrowRect = wxRect(0,0,0,0);
 945
 946         if ( AllowMonthChange() )
 947         {
 948             wxDateTime ldpm = wxDateTime(1,m_date.GetMonth(), m_date.GetYear()) - wxDateSpan::Day(); // last day prev month
 949             // Check if range permits change
 950             if ( IsDateInRange(ldpm) && ( ( ldpm.GetYear() == m_date.GetYear() ) ? true : AllowYearChange() ) )
 951             {
 952                 m_leftArrowRect = wxRect(larrowx - 3, arrowy - 3, (arrowheight / 2) + 8, (arrowheight + 6));
 953                 dc.SetBrush(*wxBLACK_BRUSH);
 954                 dc.SetPen(*wxBLACK_PEN);
 955                 dc.DrawPolygon(3, leftarrow, larrowx , arrowy, wxWINDING_RULE);
 956                 dc.SetBrush(*wxTRANSPARENT_BRUSH);
 957                 dc.DrawRectangle(m_leftArrowRect);
 958             }
 959             wxDateTime fdnm = wxDateTime(1,m_date.GetMonth(), m_date.GetYear()) + wxDateSpan::Month(); // first day next month
 960             if ( IsDateInRange(fdnm) && ( ( fdnm.GetYear() == m_date.GetYear() ) ? true : AllowYearChange() ) )
 961             {
 962                 m_rightArrowRect = wxRect(rarrowx - 4, arrowy - 3, (arrowheight / 2) + 8, (arrowheight + 6));
 963                 dc.SetBrush(*wxBLACK_BRUSH);
 964                 dc.SetPen(*wxBLACK_PEN);
 965                 dc.DrawPolygon(3, rightarrow, rarrowx , arrowy, wxWINDING_RULE);
 966                 dc.SetBrush(*wxTRANSPARENT_BRUSH);
 967                 dc.DrawRectangle(m_rightArrowRect);
 968             }
 969         }
 970
 971         y += m_heightRow;
 972     }
 973
 974     // first draw the week days
 975     if ( IsExposed(x0, y, x0 + 7*m_widthCol, m_heightRow) )
 976     {
 977 #if DEBUG_PAINT
 978         wxLogDebug("painting the header");
 979 #endif
 980
 981         dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
 982         dc.SetTextForeground(m_colHeaderFg);
 983         dc.SetBrush(wxBrush(m_colHeaderBg, wxBRUSHSTYLE_SOLID));
 984         dc.SetPen(wxPen(m_colHeaderBg, 1, wxPENSTYLE_SOLID));
 985         dc.DrawRectangle(0, y, GetClientSize().x, m_heightRow);
 986
 987         bool startOnMonday = (GetWindowStyle() & wxCAL_MONDAY_FIRST) != 0;
 988         for ( int wd = 0; wd < 7; wd++ )
 989         {
 990             size_t n;
 991             if ( startOnMonday )
 992                 n = wd == 6 ? 0 : wd + 1;
 993             else
 994                 n = wd;
 995             wxCoord dayw, dayh;
 996             dc.GetTextExtent(m_weekdays[n], &dayw, &dayh);
 997             dc.DrawText(m_weekdays[n], x0 + (wd*m_widthCol) + ((m_widthCol- dayw) / 2), y); // center the day-name
 998         }
 999     }
1000
1001     // then the calendar itself
1002     dc.SetTextForeground(*wxBLACK);
1003     //dc.SetFont(*wxNORMAL_FONT);
1004
1005     y += m_heightRow;
1006     wxDateTime date = GetStartDate();
1007
1008 #if DEBUG_PAINT
1009     wxLogDebug("starting calendar from %s\n",
1010             date.Format("%a %d-%m-%Y %H:%M:%S").c_str());
1011 #endif
1012
1013     dc.SetBackgroundMode(wxBRUSHSTYLE_SOLID);
1014     for ( size_t nWeek = 1; nWeek <= 6; nWeek++, y += m_heightRow )
1015     {
1016         // if the update region doesn't intersect this row, don't paint it
1017         if ( !IsExposed(x0, y, x0 + 7*m_widthCol, m_heightRow - 1) )
1018         {
1019             date += wxDateSpan::Week();
1020
1021             continue;
1022         }
1023
1024 #if DEBUG_PAINT
1025         wxLogDebug("painting week %d at y = %d\n", nWeek, y);
1026 #endif
1027
1028         for ( int wd = 0; wd < 7; wd++ )
1029         {
1030             dc.SetTextBackground(m_colBackground);
1031             if ( IsDateShown(date) )
1032             {
1033                 // don't use wxDate::Format() which prepends 0s
1034                 unsigned int day = date.GetDay();
1035                 wxString dayStr = wxString::Format(_T("%u"), day);
1036                 wxCoord width;
1037                 dc.GetTextExtent(dayStr, &width, (wxCoord *)NULL);
1038
1039                 bool changedColours = false,
1040                      changedFont = false;
1041
1042                 bool isSel = false;
1043                 wxCalendarDateAttr *attr = NULL;
1044
1045                 if ( date.GetMonth() != m_date.GetMonth() || !IsDateInRange(date) )
1046                 {
1047                     // draw the days of adjacent months in different colour
1048                     dc.SetTextForeground(m_colSurrounding);
1049                     changedColours = true;
1050                 }
1051                 else
1052                 {
1053                     isSel = date.IsSameDate(m_date);
1054                     attr = m_attrs[day - 1];
1055
1056                     if ( isSel )
1057                     {
1058                         dc.SetTextForeground(m_colHighlightFg);
1059                         dc.SetTextBackground(m_colHighlightBg);
1060
1061                         changedColours = true;
1062                     }
1063                     else if ( attr )
1064                     {
1065                         wxColour colFg, colBg;
1066
1067                         if ( attr->IsHoliday() )
1068                         {
1069                             colFg = m_colHolidayFg;
1070                             colBg = m_colHolidayBg;
1071                         }
1072                         else
1073                         {
1074                             colFg = attr->GetTextColour();
1075                             colBg = attr->GetBackgroundColour();
1076                         }
1077
1078                         if ( colFg.Ok() )
1079                         {
1080                             dc.SetTextForeground(colFg);
1081                             changedColours = true;
1082                         }
1083
1084                         if ( colBg.Ok() )
1085                         {
1086                             dc.SetTextBackground(colBg);
1087                             changedColours = true;
1088                         }
1089
1090                         if ( attr->HasFont() )
1091                         {
1092                             dc.SetFont(attr->GetFont());
1093                             changedFont = true;
1094                         }
1095                     }
1096                 }
1097
1098                 wxCoord x = wd*m_widthCol + (m_widthCol - width) / 2 + x0;
1099                 dc.DrawText(dayStr, x, y + 1);
1100
1101                 if ( !isSel && attr && attr->HasBorder() )
1102                 {
1103                     wxColour colBorder;
1104                     if ( attr->HasBorderColour() )
1105                     {
1106                         colBorder = attr->GetBorderColour();
1107                     }
1108                     else
1109                     {
1110                         colBorder = GetForegroundColour();
1111                     }
1112
1113                     wxPen pen(colBorder, 1, wxPENSTYLE_SOLID);
1114                     dc.SetPen(pen);
1115                     dc.SetBrush(*wxTRANSPARENT_BRUSH);
1116
1117                     switch ( attr->GetBorder() )
1118                     {
1119                         case wxCAL_BORDER_SQUARE:
1120                             dc.DrawRectangle(x - 2, y,
1121                                              width + 4, m_heightRow);
1122                             break;
1123
1124                         case wxCAL_BORDER_ROUND:
1125                             dc.DrawEllipse(x - 2, y,
1126                                            width + 4, m_heightRow);
1127                             break;
1128
1129                         default:
1130                             wxFAIL_MSG(_T("unknown border type"));
1131                     }
1132                 }
1133
1134                 if ( changedColours )
1135                 {
1136                     dc.SetTextForeground(GetForegroundColour());
1137                     dc.SetTextBackground(GetBackgroundColour());
1138                 }
1139
1140                 if ( changedFont )
1141                 {
1142                     dc.SetFont(GetFont());
1143                 }
1144             }
1145             //else: just don't draw it
1146
1147             date += wxDateSpan::Day();
1148         }
1149     }
1150
1151     // Greying out out-of-range background
1152     bool showSurrounding = (GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) != 0;
1153
1154     date = ( showSurrounding ) ? GetStartDate() : wxDateTime(1, m_date.GetMonth(), m_date.GetYear());
1155     if ( !IsDateInRange(date) )
1156     {
1157         wxDateTime firstOOR = GetLowerDateLimit() - wxDateSpan::Day(); // first out-of-range
1158
1159         wxBrush oorbrush = *wxLIGHT_GREY_BRUSH;
1160         oorbrush.SetStyle(wxBRUSHSTYLE_FDIAGONAL_HATCH);
1161
1162         HighlightRange(&dc, date, firstOOR, wxTRANSPARENT_PEN, &oorbrush);
1163     }
1164
1165     date = ( showSurrounding ) ? GetStartDate() + wxDateSpan::Weeks(6) - wxDateSpan::Day() : wxDateTime().SetToLastMonthDay(m_date.GetMonth(), m_date.GetYear());
1166     if ( !IsDateInRange(date) )
1167     {
1168         wxDateTime firstOOR = GetUpperDateLimit() + wxDateSpan::Day(); // first out-of-range
1169
1170         wxBrush oorbrush = *wxLIGHT_GREY_BRUSH;
1171         oorbrush.SetStyle(wxBRUSHSTYLE_FDIAGONAL_HATCH);
1172
1173         HighlightRange(&dc, firstOOR, date, wxTRANSPARENT_PEN, &oorbrush);
1174     }
1175
1176 #if DEBUG_PAINT
1177     wxLogDebug("+++ finished painting");
1178 #endif
1179 }
1180
1181 void wxGenericCalendarCtrl::RefreshDate(const wxDateTime& date)
1182 {
1183     RecalcGeometry();
1184
1185     wxRect rect;
1186
1187     // always refresh the whole row at once because our OnPaint() will draw
1188     // the whole row anyhow - and this allows the small optimisation in
1189     // OnClick() below to work
1190     rect.x = wxMax( (GetSize().x - m_widthCol*7) /2 , 0 );
1191
1192     rect.y = (m_heightRow * GetWeek(date)) + m_rowOffset;
1193
1194     rect.width = 7*m_widthCol;
1195     rect.height = m_heightRow;
1196
1197 #ifdef __WXMSW__
1198     // VZ: for some reason, the selected date seems to occupy more space under
1199     //     MSW - this is probably some bug in the font size calculations, but I
1200     //     don't know where exactly. This fix is ugly and leads to more
1201     //     refreshes than really needed, but without it the selected days
1202     //     leaves even more ugly underscores on screen.
1203     rect.Inflate(0, 1);
1204 #endif // MSW
1205
1206 #if DEBUG_PAINT
1207     wxLogDebug("*** refreshing week %d at (%d, %d)-(%d, %d)\n",
1208            GetWeek(date),
1209            rect.x, rect.y,
1210            rect.x + rect.width, rect.y + rect.height);
1211 #endif
1212
1213     Refresh(true, &rect);
1214 }
1215
1216 void wxGenericCalendarCtrl::HighlightRange(wxPaintDC* pDC, const wxDateTime& fromdate, const wxDateTime& todate, const wxPen* pPen, const wxBrush* pBrush)
1217 {
1218     // Highlights the given range using pen and brush
1219     // Does nothing if todate < fromdate
1220
1221
1222 #if DEBUG_PAINT
1223     wxLogDebug("+++ HighlightRange: (%s) - (%s) +++", fromdate.Format("%d %m %Y"), todate.Format("%d %m %Y"));
1224 #endif
1225
1226     if ( todate >= fromdate )
1227     {
1228         // do stuff
1229         // date-coordinates
1230         int fd, fw;
1231         int td, tw;
1232
1233         // implicit: both dates must be currently shown - checked by GetDateCoord
1234         if ( GetDateCoord(fromdate, &fd, &fw) && GetDateCoord(todate, &td, &tw) )
1235         {
1236 #if DEBUG_PAINT
1237             wxLogDebug("Highlight range: (%i, %i) - (%i, %i)", fd, fw, td, tw);
1238 #endif
1239             if ( ( (tw - fw) == 1 ) && ( td < fd ) )
1240             {
1241                 // special case: interval 7 days or less not in same week
1242                 // split in two separate intervals
1243                 wxDateTime tfd = fromdate + wxDateSpan::Days(7-fd);
1244                 wxDateTime ftd = tfd + wxDateSpan::Day();
1245 #if DEBUG_PAINT
1246                 wxLogDebug("Highlight: Separate segments");
1247 #endif
1248                 // draw separately
1249                 HighlightRange(pDC, fromdate, tfd, pPen, pBrush);
1250                 HighlightRange(pDC, ftd, todate, pPen, pBrush);
1251             }
1252             else
1253             {
1254                 int numpoints;
1255                 wxPoint corners[8]; // potentially 8 corners in polygon
1256                 wxCoord x0 = wxMax( (GetSize().x - m_widthCol*7) /2 , 0 );
1257
1258                 if ( fw == tw )
1259                 {
1260                     // simple case: same week
1261                     numpoints = 4;
1262                     corners[0] = wxPoint(x0 + (fd - 1) * m_widthCol, (fw * m_heightRow) + m_rowOffset);
1263                     corners[1] = wxPoint(x0 + (fd - 1) * m_widthCol, ((fw + 1 ) * m_heightRow) + m_rowOffset);
1264                     corners[2] = wxPoint(x0 + td * m_widthCol, ((tw + 1) * m_heightRow) + m_rowOffset);
1265                     corners[3] = wxPoint(x0 + td * m_widthCol, (tw * m_heightRow) + m_rowOffset);
1266                 }
1267                 else
1268                 {
1269                     int cidx = 0;
1270                     // "complex" polygon
1271                     corners[cidx] = wxPoint(x0 + (fd - 1) * m_widthCol, (fw * m_heightRow) + m_rowOffset); cidx++;
1272
1273                     if ( fd > 1 )
1274                     {
1275                         corners[cidx] = wxPoint(x0 + (fd - 1) * m_widthCol, ((fw + 1) * m_heightRow) + m_rowOffset); cidx++;
1276                         corners[cidx] = wxPoint(x0, ((fw + 1) * m_heightRow) + m_rowOffset); cidx++;
1277                     }
1278
1279                     corners[cidx] = wxPoint(x0, ((tw + 1) * m_heightRow) + m_rowOffset); cidx++;
1280                     corners[cidx] = wxPoint(x0 + td * m_widthCol, ((tw + 1) * m_heightRow) + m_rowOffset); cidx++;
1281
1282                     if ( td < 7 )
1283                     {
1284                         corners[cidx] = wxPoint(x0 + td * m_widthCol, (tw * m_heightRow) + m_rowOffset); cidx++;
1285                         corners[cidx] = wxPoint(x0 + 7 * m_widthCol, (tw * m_heightRow) + m_rowOffset); cidx++;
1286                     }
1287
1288                     corners[cidx] = wxPoint(x0 + 7 * m_widthCol, (fw * m_heightRow) + m_rowOffset); cidx++;
1289
1290                     numpoints = cidx;
1291                 }
1292
1293                 // draw the polygon
1294                 pDC->SetBrush(*pBrush);
1295                 pDC->SetPen(*pPen);
1296                 pDC->DrawPolygon(numpoints, corners);
1297             }
1298         }
1299     }
1300     // else do nothing
1301 #if DEBUG_PAINT
1302     wxLogDebug("--- HighlightRange ---");
1303 #endif
1304 }
1305
1306 bool wxGenericCalendarCtrl::GetDateCoord(const wxDateTime& date, int *day, int *week) const
1307 {
1308     bool retval = true;
1309
1310 #if DEBUG_PAINT
1311     wxLogDebug("+++ GetDateCoord: (%s) +++", date.Format("%d %m %Y"));
1312 #endif
1313
1314     if ( IsDateShown(date) )
1315     {
1316         bool startOnMonday = ( GetWindowStyle() & wxCAL_MONDAY_FIRST ) != 0;
1317
1318         // Find day
1319         *day = date.GetWeekDay();
1320
1321         if ( *day == 0 ) // sunday
1322         {
1323             *day = ( startOnMonday ) ? 7 : 1;
1324         }
1325         else
1326         {
1327             *day += ( startOnMonday ) ? 0 : 1;
1328         }
1329
1330         int targetmonth = date.GetMonth() + (12 * date.GetYear());
1331         int thismonth = m_date.GetMonth() + (12 * m_date.GetYear());
1332
1333         // Find week
1334         if ( targetmonth == thismonth )
1335         {
1336             *week = GetWeek(date);
1337         }
1338         else
1339         {
1340             if ( targetmonth < thismonth )
1341             {
1342                 *week = 1; // trivial
1343             }
1344             else // targetmonth > thismonth
1345             {
1346                 wxDateTime ldcm;
1347                 int lastweek;
1348                 int lastday;
1349
1350                 // get the datecoord of the last day in the month currently shown
1351 #if DEBUG_PAINT
1352                 wxLogDebug("     +++ LDOM +++");
1353 #endif
1354                 GetDateCoord(ldcm.SetToLastMonthDay(m_date.GetMonth(), m_date.GetYear()), &lastday, &lastweek);
1355 #if DEBUG_PAINT
1356                 wxLogDebug("     --- LDOM ---");
1357 #endif
1358
1359                 wxTimeSpan span = date - ldcm;
1360
1361                 int daysfromlast = span.GetDays();
1362 #if DEBUG_PAINT
1363                 wxLogDebug("daysfromlast: %i", daysfromlast);
1364 #endif
1365                 if ( daysfromlast + lastday > 7 ) // past week boundary
1366                 {
1367                     int wholeweeks = (daysfromlast / 7);
1368                     *week = wholeweeks + lastweek;
1369                     if ( (daysfromlast - (7 * wholeweeks) + lastday) > 7 )
1370                     {
1371                         *week += 1;
1372                     }
1373                 }
1374                 else
1375                 {
1376                     *week = lastweek;
1377                 }
1378             }
1379         }
1380     }
1381     else
1382     {
1383         *day = -1;
1384         *week = -1;
1385         retval = false;
1386     }
1387
1388 #if DEBUG_PAINT
1389     wxLogDebug("--- GetDateCoord: (%s) = (%i, %i) ---", date.Format("%d %m %Y"), *day, *week);
1390 #endif
1391
1392     return retval;
1393 }
1394
1395 // ----------------------------------------------------------------------------
1396 // mouse handling
1397 // ----------------------------------------------------------------------------
1398
1399 void wxGenericCalendarCtrl::OnDClick(wxMouseEvent& event)
1400 {
1401     if ( HitTest(event.GetPosition()) != wxCAL_HITTEST_DAY )
1402     {
1403         event.Skip();
1404     }
1405     else
1406     {
1407         GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED);
1408     }
1409 }
1410
1411 void wxGenericCalendarCtrl::OnClick(wxMouseEvent& event)
1412 {
1413     wxDateTime date;
1414     wxDateTime::WeekDay wday;
1415     switch ( HitTest(event.GetPosition(), &date, &wday) )
1416     {
1417         case wxCAL_HITTEST_DAY:
1418             if ( IsDateInRange(date) )
1419             {
1420                 ChangeDay(date);
1421
1422                 GenerateEvent(wxEVT_CALENDAR_SEL_CHANGED);
1423
1424                 // we know that the month/year never change when the user
1425                 // clicks on the control so there is no need to call
1426                 // GenerateAllChangeEvents() here, we know which event to send
1427                 GenerateEvent(wxEVT_CALENDAR_DAY_CHANGED);
1428             }
1429             break;
1430
1431         case wxCAL_HITTEST_HEADER:
1432             {
1433                 wxCalendarEvent eventWd(this, GetDate(),
1434                                         wxEVT_CALENDAR_WEEKDAY_CLICKED);
1435                 eventWd.SetWeekDay(wday);
1436                 (void)GetEventHandler()->ProcessEvent(eventWd);
1437             }
1438             break;
1439
1440         case wxCAL_HITTEST_DECMONTH:
1441         case wxCAL_HITTEST_INCMONTH:
1442         case wxCAL_HITTEST_SURROUNDING_WEEK:
1443             SetDateAndNotify(date); // we probably only want to refresh the control. No notification.. (maybe as an option?)
1444             break;
1445
1446         default:
1447             wxFAIL_MSG(_T("unknown hittest code"));
1448             // fall through
1449
1450         case wxCAL_HITTEST_NOWHERE:
1451             event.Skip();
1452             break;
1453     }
1454
1455     // as we don't (always) skip the message, we're not going to receive the
1456     // focus on click by default if we don't do it ourselves
1457     SetFocus();
1458 }
1459
1460 wxCalendarHitTestResult wxGenericCalendarCtrl::HitTest(const wxPoint& pos,
1461                                                 wxDateTime *date,
1462                                                 wxDateTime::WeekDay *wd)
1463 {
1464     RecalcGeometry();
1465
1466     // the position where the calendar really begins
1467     wxCoord x0 = wxMax((GetSize().x - m_widthCol*7)/2, 0);
1468
1469     if ( HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
1470     {
1471         // Header: month
1472
1473         // we need to find out if the hit is on left arrow, on month or on right arrow
1474         // left arrow?
1475         if ( m_leftArrowRect.Contains(pos) )
1476         {
1477             if ( date )
1478             {
1479                 if ( IsDateInRange(m_date - wxDateSpan::Month()) )
1480                 {
1481                     *date = m_date - wxDateSpan::Month();
1482                 }
1483                 else
1484                 {
1485                     *date = GetLowerDateLimit();
1486                 }
1487             }
1488
1489             return wxCAL_HITTEST_DECMONTH;
1490         }
1491
1492         if ( m_rightArrowRect.Contains(pos) )
1493         {
1494             if ( date )
1495             {
1496                 if ( IsDateInRange(m_date + wxDateSpan::Month()) )
1497                 {
1498                     *date = m_date + wxDateSpan::Month();
1499                 }
1500                 else
1501                 {
1502                     *date = GetUpperDateLimit();
1503                 }
1504             }
1505
1506             return wxCAL_HITTEST_INCMONTH;
1507         }
1508
1509     }
1510
1511     // header: week days
1512     int wday = (pos.x - x0) / m_widthCol;
1513     if ( pos.y < (m_heightRow + m_rowOffset) )
1514     {
1515         if ( pos.y > m_rowOffset )
1516         {
1517             if ( wd )
1518             {
1519                 if ( GetWindowStyle() & wxCAL_MONDAY_FIRST )
1520                 {
1521                     wday = wday == 6 ? 0 : wday + 1;
1522                 }
1523
1524                 *wd = (wxDateTime::WeekDay)wday;
1525             }
1526
1527             return wxCAL_HITTEST_HEADER;
1528         }
1529         else
1530         {
1531             return wxCAL_HITTEST_NOWHERE;
1532         }
1533     }
1534
1535     int week = (pos.y - (m_heightRow + m_rowOffset)) / m_heightRow;
1536     if ( week >= 6 || wday >= 7 )
1537     {
1538         return wxCAL_HITTEST_NOWHERE;
1539     }
1540
1541     wxDateTime dt = GetStartDate() + wxDateSpan::Days(7*week + wday);
1542
1543     if ( IsDateShown(dt) )
1544     {
1545         if ( date )
1546             *date = dt;
1547
1548         if ( dt.GetMonth() == m_date.GetMonth() )
1549         {
1550
1551             return wxCAL_HITTEST_DAY;
1552         }
1553         else
1554         {
1555             return wxCAL_HITTEST_SURROUNDING_WEEK;
1556         }
1557     }
1558     else
1559     {
1560         return wxCAL_HITTEST_NOWHERE;
1561     }
1562 }
1563
1564 // ----------------------------------------------------------------------------
1565 // subcontrols events handling
1566 // ----------------------------------------------------------------------------
1567
1568 void wxGenericCalendarCtrl::OnMonthChange(wxCommandEvent& event)
1569 {
1570     wxDateTime::Tm tm = m_date.GetTm();
1571
1572     wxDateTime::Month mon = (wxDateTime::Month)event.GetInt();
1573     if ( tm.mday > wxDateTime::GetNumberOfDays(mon, tm.year) )
1574     {
1575         tm.mday = wxDateTime::GetNumberOfDays(mon, tm.year);
1576     }
1577
1578     wxDateTime target = wxDateTime(tm.mday, mon, tm.year);
1579
1580     ChangeMonth(&target);
1581     SetDateAndNotify(target);
1582 }
1583
1584 void wxGenericCalendarCtrl::OnYearChange(wxCommandEvent& event)
1585 {
1586     int year = (int)event.GetInt();
1587     if ( year == INT_MIN )
1588     {
1589         // invalid year in the spin control, ignore it
1590         return;
1591     }
1592
1593     wxDateTime::Tm tm = m_date.GetTm();
1594
1595     if ( tm.mday > wxDateTime::GetNumberOfDays(tm.mon, year) )
1596     {
1597         tm.mday = wxDateTime::GetNumberOfDays(tm.mon, year);
1598     }
1599
1600     wxDateTime target = wxDateTime(tm.mday, tm.mon, year);
1601
1602     if ( ChangeYear(&target) )
1603     {
1604         SetDateAndNotify(target);
1605     }
1606     else
1607     {
1608         // In this case we don't want to change the date. That would put us
1609         // inside the same year but a strange number of months forward/back..
1610         m_spinYear->SetValue(target.GetYear());
1611     }
1612 }
1613
1614 void wxGenericCalendarCtrl::OnYearTextChange(wxCommandEvent& event)
1615 {
1616     SetUserChangedYear();
1617     OnYearChange(event);
1618 }
1619
1620 // Responds to colour changes, and passes event on to children.
1621 void wxGenericCalendarCtrl::OnSysColourChanged(wxSysColourChangedEvent& event)
1622 {
1623     // reinit colours
1624     InitColours();
1625
1626     // Propagate the event to the children
1627     wxControl::OnSysColourChanged(event);
1628
1629     // Redraw control area
1630     SetBackgroundColour(m_colBackground);
1631     Refresh();
1632 }
1633
1634 // ----------------------------------------------------------------------------
1635 // keyboard interface
1636 // ----------------------------------------------------------------------------
1637
1638 void wxGenericCalendarCtrl::OnChar(wxKeyEvent& event)
1639 {
1640     wxDateTime target;
1641     switch ( event.GetKeyCode() )
1642     {
1643         case _T('+'):
1644         case WXK_ADD:
1645             target = m_date + wxDateSpan::Year();
1646             if ( ChangeYear(&target) )
1647             {
1648                 SetDateAndNotify(target);
1649             }
1650             break;
1651
1652         case _T('-'):
1653         case WXK_SUBTRACT:
1654             target = m_date - wxDateSpan::Year();
1655             if ( ChangeYear(&target) )
1656             {
1657                 SetDateAndNotify(target);
1658             }
1659             break;
1660
1661         case WXK_PAGEUP:
1662             target = m_date - wxDateSpan::Month();
1663             ChangeMonth(&target);
1664             SetDateAndNotify(target); // always
1665             break;
1666
1667         case WXK_PAGEDOWN:
1668             target = m_date + wxDateSpan::Month();
1669             ChangeMonth(&target);
1670             SetDateAndNotify(target); // always
1671             break;
1672
1673         case WXK_RIGHT:
1674             if ( event.ControlDown() )
1675             {
1676                 target = wxDateTime(m_date).SetToNextWeekDay(
1677                                  GetWindowStyle() & wxCAL_MONDAY_FIRST
1678                                  ? wxDateTime::Sun : wxDateTime::Sat);
1679                 if ( !IsDateInRange(target) )
1680                 {
1681                     target = GetUpperDateLimit();
1682                 }
1683                 SetDateAndNotify(target);
1684             }
1685             else
1686                 SetDateAndNotify(m_date + wxDateSpan::Day());
1687             break;
1688
1689         case WXK_LEFT:
1690             if ( event.ControlDown() )
1691             {
1692                 target = wxDateTime(m_date).SetToPrevWeekDay(
1693                                  GetWindowStyle() & wxCAL_MONDAY_FIRST
1694                                  ? wxDateTime::Mon : wxDateTime::Sun);
1695                 if ( !IsDateInRange(target) )
1696                 {
1697                     target = GetLowerDateLimit();
1698                 }
1699                 SetDateAndNotify(target);
1700             }
1701             else
1702                 SetDateAndNotify(m_date - wxDateSpan::Day());
1703             break;
1704
1705         case WXK_UP:
1706             SetDateAndNotify(m_date - wxDateSpan::Week());
1707             break;
1708
1709         case WXK_DOWN:
1710             SetDateAndNotify(m_date + wxDateSpan::Week());
1711             break;
1712
1713         case WXK_HOME:
1714             if ( event.ControlDown() )
1715                 SetDateAndNotify(wxDateTime::Today());
1716             else
1717                 SetDateAndNotify(wxDateTime(1, m_date.GetMonth(), m_date.GetYear()));
1718             break;
1719
1720         case WXK_END:
1721             SetDateAndNotify(wxDateTime(m_date).SetToLastMonthDay());
1722             break;
1723
1724         case WXK_RETURN:
1725             GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED);
1726             break;
1727
1728         default:
1729             event.Skip();
1730     }
1731 }
1732
1733 // ----------------------------------------------------------------------------
1734 // holidays handling
1735 // ----------------------------------------------------------------------------
1736
1737 void wxGenericCalendarCtrl::EnableHolidayDisplay(bool display)
1738 {
1739     long style = GetWindowStyle();
1740     if ( display )
1741         style |= wxCAL_SHOW_HOLIDAYS;
1742     else
1743         style &= ~wxCAL_SHOW_HOLIDAYS;
1744
1745     SetWindowStyle(style);
1746
1747     if ( display )
1748         SetHolidayAttrs();
1749     else
1750         ResetHolidayAttrs();
1751
1752     Refresh();
1753 }
1754
1755 void wxGenericCalendarCtrl::SetHolidayAttrs()
1756 {
1757     if ( GetWindowStyle() & wxCAL_SHOW_HOLIDAYS )
1758     {
1759         ResetHolidayAttrs();
1760
1761         wxDateTime::Tm tm = m_date.GetTm();
1762         wxDateTime dtStart(1, tm.mon, tm.year),
1763                    dtEnd = dtStart.GetLastMonthDay();
1764
1765         wxDateTimeArray hol;
1766         wxDateTimeHolidayAuthority::GetHolidaysInRange(dtStart, dtEnd, hol);
1767
1768         size_t count = hol.GetCount();
1769         for ( size_t n = 0; n < count; n++ )
1770         {
1771             SetHoliday(hol[n].GetDay());
1772         }
1773     }
1774 }
1775
1776 void wxGenericCalendarCtrl::SetHoliday(size_t day)
1777 {
1778     wxCHECK_RET( day > 0 && day < 32, _T("invalid day in SetHoliday") );
1779
1780     wxCalendarDateAttr *attr = GetAttr(day);
1781     if ( !attr )
1782     {
1783         attr = new wxCalendarDateAttr;
1784     }
1785
1786     attr->SetHoliday(true);
1787
1788     // can't use SetAttr() because it would delete this pointer
1789     m_attrs[day - 1] = attr;
1790 }
1791
1792 void wxGenericCalendarCtrl::ResetHolidayAttrs()
1793 {
1794     for ( size_t day = 0; day < 31; day++ )
1795     {
1796         if ( m_attrs[day] )
1797         {
1798             m_attrs[day]->SetHoliday(false);
1799         }
1800     }
1801 }
1802
1803 void wxGenericCalendarCtrl::Mark(size_t day, bool mark)
1804 {
1805     wxCHECK_RET( day > 0 && day < 32, _T("invalid day in Mark") );
1806
1807     const wxCalendarDateAttr& m = wxCalendarDateAttr::GetMark();
1808     if (mark) {
1809         if ( m_attrs[day - 1] )
1810             AddAttr(m_attrs[day - 1], m);
1811         else
1812             SetAttr(day, new wxCalendarDateAttr(m));
1813     }
1814     else {
1815         if ( m_attrs[day - 1] )
1816             DelAttr(m_attrs[day - 1], m);
1817     }
1818 }
1819
1820 //static
1821 wxVisualAttributes
1822 wxGenericCalendarCtrl::GetClassDefaultAttributes(wxWindowVariant variant)
1823 {
1824     // Use the same color scheme as wxListBox
1825     return wxListBox::GetClassDefaultAttributes(variant);
1826 }
1827
1828 #endif // wxUSE_CALENDARCTRL