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