src/generic/datectlg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/datectlg.cpp
   3 // Purpose:     generic wxDatePickerCtrlGeneric implementation
   4 // Author:      Andreas Pflug
   5 // Modified by:
   6 // Created:     2005-01-19
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2005 Andreas Pflug <pgadmin@pse-consulting.de>
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #if wxUSE_DATEPICKCTRL
  27
  28 #ifndef WX_PRECOMP
  29     #include "wx/dialog.h"
  30     #include "wx/dcmemory.h"
  31     #include "wx/intl.h"
  32     #include "wx/panel.h"
  33     #include "wx/textctrl.h"
  34     #include "wx/valtext.h"
  35 #endif
  36
  37 #include "wx/calctrl.h"
  38 #include "wx/combo.h"
  39
  40 #include "wx/datectrl.h"
  41 #include "wx/generic/datectrl.h"
  42
  43 // ----------------------------------------------------------------------------
  44 // constants
  45 // ----------------------------------------------------------------------------
  46
  47
  48 // ----------------------------------------------------------------------------
  49 // global variables
  50 // ----------------------------------------------------------------------------
  51
  52
  53 // ----------------------------------------------------------------------------
  54 // local classes
  55 // ----------------------------------------------------------------------------
  56
  57 class wxCalendarComboPopup : public wxCalendarCtrl,
  58                              public wxComboPopup
  59 {
  60 public:
  61
  62     wxCalendarComboPopup() : wxCalendarCtrl(),
  63                              wxComboPopup()
  64     {
  65     }
  66
  67     virtual void Init()
  68     {
  69     }
  70
  71     // NB: Don't create lazily since it didn't work that way before
  72     //     wxComboCtrl was used, and changing behaviour would almost
  73     //     certainly introduce new bugs.
  74     virtual bool Create(wxWindow* parent)
  75     {
  76         if ( !wxCalendarCtrl::Create(parent, wxID_ANY, wxDefaultDateTime,
  77                               wxPoint(0, 0), wxDefaultSize,
  78                               wxCAL_SEQUENTIAL_MONTH_SELECTION
  79                               | wxCAL_SHOW_HOLIDAYS | wxBORDER_SUNKEN) )
  80             return false;
  81
  82         SetFormat(GetLocaleDateFormat());
  83
  84         m_useSize  = wxCalendarCtrl::GetBestSize();
  85
  86         wxWindow* tx = m_combo->GetTextCtrl();
  87         if ( !tx )
  88             tx = m_combo;
  89
  90         tx->Connect(wxEVT_KILL_FOCUS,
  91                     wxFocusEventHandler(wxCalendarComboPopup::OnKillTextFocus),
  92                     NULL, this);
  93
  94         return true;
  95     }
  96
  97     virtual wxSize GetAdjustedSize(int WXUNUSED(minWidth),
  98                                    int WXUNUSED(prefHeight),
  99                                    int WXUNUSED(maxHeight))
 100     {
 101         return m_useSize;
 102     }
 103
 104     virtual wxWindow *GetControl() { return this; }
 105
 106     void SetDateValue(const wxDateTime& date)
 107     {
 108         if ( date.IsValid() )
 109         {
 110             m_combo->SetText(date.Format(m_format));
 111             SetDate(date);
 112         }
 113         else // invalid date
 114         {
 115             wxASSERT_MSG( HasDPFlag(wxDP_ALLOWNONE),
 116                             wxT("this control must have a valid date") );
 117
 118             m_combo->SetText(wxEmptyString);
 119         }
 120     }
 121
 122     bool IsTextEmpty() const
 123     {
 124         return m_combo->GetTextCtrl()->IsEmpty();
 125     }
 126
 127     bool ParseDateTime(const wxString& s, wxDateTime* pDt)
 128     {
 129         wxASSERT(pDt);
 130
 131         if ( !s.empty() )
 132         {
 133             pDt->ParseFormat(s.c_str(), m_format);
 134             if ( !pDt->IsValid() )
 135                 return false;
 136         }
 137
 138         return true;
 139     }
 140
 141     void SendDateEvent(const wxDateTime& dt)
 142     {
 143         // Sends both wxCalendarEvent and wxDateEvent
 144         wxWindow* datePicker = m_combo->GetParent();
 145
 146         wxCalendarEvent cev(datePicker, dt, wxEVT_CALENDAR_SEL_CHANGED);
 147         datePicker->GetEventHandler()->ProcessEvent(cev);
 148
 149         wxDateEvent event(datePicker, dt, wxEVT_DATE_CHANGED);
 150         datePicker->GetEventHandler()->ProcessEvent(event);
 151     }
 152
 153 private:
 154
 155     void OnCalKey(wxKeyEvent & ev)
 156     {
 157         if (ev.GetKeyCode() == WXK_ESCAPE && !ev.HasModifiers())
 158             Dismiss();
 159         else
 160             ev.Skip();
 161     }
 162
 163     void OnSelChange(wxCalendarEvent &ev)
 164     {
 165         m_combo->SetText(GetDate().Format(m_format));
 166
 167         if ( ev.GetEventType() == wxEVT_CALENDAR_DOUBLECLICKED )
 168         {
 169             Dismiss();
 170         }
 171
 172         SendDateEvent(GetDate());
 173     }
 174
 175     void OnKillTextFocus(wxFocusEvent &ev)
 176     {
 177         ev.Skip();
 178
 179         const wxDateTime& dtOld = GetDate();
 180
 181         wxDateTime dt;
 182         wxString value = m_combo->GetValue();
 183         if ( !ParseDateTime(value, &dt) )
 184         {
 185             if ( !HasDPFlag(wxDP_ALLOWNONE) )
 186                 dt = dtOld;
 187         }
 188
 189         m_combo->SetText(GetStringValueFor(dt));
 190
 191         if ( !dt.IsValid() && HasDPFlag(wxDP_ALLOWNONE) )
 192             return;
 193
 194         // notify that we had to change the date after validation
 195         if ( (dt.IsValid() && (!dtOld.IsValid() || dt != dtOld)) ||
 196                 (!dt.IsValid() && dtOld.IsValid()) )
 197         {
 198             SetDate(dt);
 199             SendDateEvent(dt);
 200         }
 201     }
 202
 203     bool HasDPFlag(int flag) const
 204     {
 205         return m_combo->GetParent()->HasFlag(flag);
 206     }
 207
 208     // Return the format to be used for the dates shown by the control. This
 209     // functions honours wxDP_SHOWCENTURY flag.
 210     wxString GetLocaleDateFormat() const
 211     {
 212         wxString fmt = wxLocale::GetInfo(wxLOCALE_SHORT_DATE_FMT);
 213         if ( HasDPFlag(wxDP_SHOWCENTURY) )
 214             fmt.Replace("%y", "%Y");
 215
 216         return fmt;
 217     }
 218
 219     bool SetFormat(const wxString& fmt)
 220     {
 221         m_format = fmt;
 222
 223         if ( m_combo )
 224         {
 225             wxArrayString allowedChars;
 226             for ( wxChar c = wxT('0'); c <= wxT('9'); c++ )
 227                 allowedChars.Add(wxString(c, 1));
 228
 229             const wxChar *p2 = m_format.c_str();
 230             while ( *p2 )
 231             {
 232                 if ( *p2 == '%')
 233                     p2 += 2;
 234                 else
 235                     allowedChars.Add(wxString(*p2++, 1));
 236             }
 237
 238     #if wxUSE_VALIDATORS
 239             wxTextValidator tv(wxFILTER_INCLUDE_CHAR_LIST);
 240             tv.SetIncludes(allowedChars);
 241             m_combo->SetValidator(tv);
 242     #endif
 243
 244             if ( GetDate().IsValid() )
 245                 m_combo->SetText(GetDate().Format(m_format));
 246         }
 247
 248         return true;
 249     }
 250
 251     virtual void SetStringValue(const wxString& s)
 252     {
 253         wxDateTime dt;
 254         if ( !s.empty() && ParseDateTime(s, &dt) )
 255             SetDate(dt);
 256         //else: keep the old value
 257     }
 258
 259     virtual wxString GetStringValue() const
 260     {
 261         return GetStringValueFor(GetDate());
 262     }
 263
 264 private:
 265     // returns either the given date representation using the current format or
 266     // an empty string if it's invalid
 267     wxString GetStringValueFor(const wxDateTime& dt) const
 268     {
 269         wxString val;
 270         if ( dt.IsValid() )
 271             val = dt.Format(m_format);
 272
 273         return val;
 274     }
 275
 276     wxSize          m_useSize;
 277     wxString        m_format;
 278
 279     DECLARE_EVENT_TABLE()
 280 };
 281
 282
 283 BEGIN_EVENT_TABLE(wxCalendarComboPopup, wxCalendarCtrl)
 284     EVT_KEY_DOWN(wxCalendarComboPopup::OnCalKey)
 285     EVT_CALENDAR_SEL_CHANGED(wxID_ANY, wxCalendarComboPopup::OnSelChange)
 286     EVT_CALENDAR_PAGE_CHANGED(wxID_ANY, wxCalendarComboPopup::OnSelChange)
 287     EVT_CALENDAR(wxID_ANY, wxCalendarComboPopup::OnSelChange)
 288 END_EVENT_TABLE()
 289
 290
 291 // ============================================================================
 292 // wxDatePickerCtrlGeneric implementation
 293 // ============================================================================
 294
 295 BEGIN_EVENT_TABLE(wxDatePickerCtrlGeneric, wxDatePickerCtrlBase)
 296     EVT_TEXT(wxID_ANY, wxDatePickerCtrlGeneric::OnText)
 297     EVT_SIZE(wxDatePickerCtrlGeneric::OnSize)
 298     EVT_SET_FOCUS(wxDatePickerCtrlGeneric::OnFocus)
 299 END_EVENT_TABLE()
 300
 301 #ifndef wxHAS_NATIVE_DATEPICKCTRL
 302     IMPLEMENT_DYNAMIC_CLASS(wxDatePickerCtrl, wxControl)
 303 #endif
 304
 305 // ----------------------------------------------------------------------------
 306 // creation
 307 // ----------------------------------------------------------------------------
 308
 309 bool wxDatePickerCtrlGeneric::Create(wxWindow *parent,
 310                                      wxWindowID id,
 311                                      const wxDateTime& date,
 312                                      const wxPoint& pos,
 313                                      const wxSize& size,
 314                                      long style,
 315                                      const wxValidator& validator,
 316                                      const wxString& name)
 317 {
 318     wxASSERT_MSG( !(style & wxDP_SPIN),
 319                   wxT("wxDP_SPIN style not supported, use wxDP_DEFAULT") );
 320
 321     if ( !wxControl::Create(parent, id, pos, size,
 322                             style | wxCLIP_CHILDREN | wxWANTS_CHARS | wxBORDER_NONE,
 323                             validator, name) )
 324     {
 325         return false;
 326     }
 327
 328     InheritAttributes();
 329
 330     m_combo = new wxComboCtrl(this, -1, wxEmptyString,
 331                               wxDefaultPosition, wxDefaultSize);
 332
 333     m_combo->SetCtrlMainWnd(this);
 334
 335     m_popup = new wxCalendarComboPopup();
 336
 337 #if defined(__WXMSW__)
 338     // without this keyboard navigation in month control doesn't work
 339     m_combo->UseAltPopupWindow();
 340 #endif
 341     m_combo->SetPopupControl(m_popup);
 342
 343     m_popup->SetDateValue(date.IsValid() ? date : wxDateTime::Today());
 344
 345     SetInitialSize(size);
 346
 347     return true;
 348 }
 349
 350
 351 void wxDatePickerCtrlGeneric::Init()
 352 {
 353     m_combo = NULL;
 354     m_popup = NULL;
 355 }
 356
 357 wxDatePickerCtrlGeneric::~wxDatePickerCtrlGeneric()
 358 {
 359 }
 360
 361 bool wxDatePickerCtrlGeneric::Destroy()
 362 {
 363     if ( m_combo )
 364         m_combo->Destroy();
 365
 366     m_combo = NULL;
 367     m_popup = NULL;
 368
 369     return wxControl::Destroy();
 370 }
 371
 372 // ----------------------------------------------------------------------------
 373 // overridden base class methods
 374 // ----------------------------------------------------------------------------
 375
 376 wxSize wxDatePickerCtrlGeneric::DoGetBestSize() const
 377 {
 378     return m_combo->GetBestSize();
 379 }
 380
 381 wxWindowList wxDatePickerCtrlGeneric::GetCompositeWindowParts() const
 382 {
 383     wxWindowList parts;
 384     parts.push_back(m_combo);
 385     parts.push_back(m_popup);
 386     return parts;
 387 }
 388
 389 // ----------------------------------------------------------------------------
 390 // wxDatePickerCtrlGeneric API
 391 // ----------------------------------------------------------------------------
 392
 393 bool
 394 wxDatePickerCtrlGeneric::SetDateRange(const wxDateTime& lowerdate,
 395                                       const wxDateTime& upperdate)
 396 {
 397     return m_popup->SetDateRange(lowerdate, upperdate);
 398 }
 399
 400
 401 wxDateTime wxDatePickerCtrlGeneric::GetValue() const
 402 {
 403     if ( HasFlag(wxDP_ALLOWNONE) && m_popup->IsTextEmpty() )
 404         return wxInvalidDateTime;
 405     return m_popup->GetDate();
 406 }
 407
 408
 409 void wxDatePickerCtrlGeneric::SetValue(const wxDateTime& date)
 410 {
 411     m_popup->SetDateValue(date);
 412 }
 413
 414
 415 bool wxDatePickerCtrlGeneric::GetRange(wxDateTime *dt1, wxDateTime *dt2) const
 416 {
 417     return m_popup->GetDateRange(dt1, dt2);
 418 }
 419
 420
 421 void
 422 wxDatePickerCtrlGeneric::SetRange(const wxDateTime &dt1, const wxDateTime &dt2)
 423 {
 424     m_popup->SetDateRange(dt1, dt2);
 425 }
 426
 427 wxCalendarCtrl *wxDatePickerCtrlGeneric::GetCalendar() const
 428 {
 429     return m_popup;
 430 }
 431
 432 // ----------------------------------------------------------------------------
 433 // event handlers
 434 // ----------------------------------------------------------------------------
 435
 436
 437 void wxDatePickerCtrlGeneric::OnSize(wxSizeEvent& event)
 438 {
 439     if ( m_combo )
 440         m_combo->SetSize(GetClientSize());
 441
 442     event.Skip();
 443 }
 444
 445
 446 void wxDatePickerCtrlGeneric::OnText(wxCommandEvent &ev)
 447 {
 448     ev.SetEventObject(this);
 449     ev.SetId(GetId());
 450     GetParent()->GetEventHandler()->ProcessEvent(ev);
 451
 452     // We'll create an additional event if the date is valid.
 453     // If the date isn't valid, the user's probably in the middle of typing
 454     wxDateTime dt;
 455     if ( !m_popup || !m_popup->ParseDateTime(m_combo->GetValue(), &dt) )
 456         return;
 457
 458     m_popup->SendDateEvent(dt);
 459 }
 460
 461
 462 void wxDatePickerCtrlGeneric::OnFocus(wxFocusEvent& WXUNUSED(event))
 463 {
 464     m_combo->SetFocus();
 465 }
 466
 467
 468 #endif // wxUSE_DATEPICKCTRL
 469