src/generic/spinctlg.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/spinctlg.cpp
   3 // Purpose:     implements wxSpinCtrl as a composite control
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     29.01.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2001 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/textctrl.h"
  29 #endif //WX_PRECOMP
  30
  31 #include "wx/spinctrl.h"
  32 #include "wx/tooltip.h"
  33
  34 #if wxUSE_SPINCTRL
  35
  36 IMPLEMENT_DYNAMIC_CLASS(wxSpinDoubleEvent, wxNotifyEvent)
  37
  38 // There are port-specific versions for the wxSpinCtrl, so exclude the
  39 // contents of this file in those cases
  40 #if !defined(wxHAS_NATIVE_SPINCTRL) || !defined(wxHAS_NATIVE_SPINCTRLDOUBLE)
  41
  42 #include "wx/spinbutt.h"
  43
  44 #if wxUSE_SPINBTN
  45
  46 // ----------------------------------------------------------------------------
  47 // constants
  48 // ----------------------------------------------------------------------------
  49
  50 // The margin between the text control and the spin: the value here is the same
  51 // as the margin between the spin button and its "buddy" text control in wxMSW
  52 // so the generic control looks similarly to the native one there, we might
  53 // need to use different value for the other platforms (and maybe even
  54 // determine it dynamically?).
  55 static const wxCoord MARGIN = 1;
  56
  57 #define SPINCTRLBUT_MAX 32000 // large to avoid wrap around trouble
  58
  59 // ----------------------------------------------------------------------------
  60 // wxSpinCtrlTextGeneric: text control used by spin control
  61 // ----------------------------------------------------------------------------
  62
  63 class wxSpinCtrlTextGeneric : public wxTextCtrl
  64 {
  65 public:
  66     wxSpinCtrlTextGeneric(wxSpinCtrlGenericBase *spin, const wxString& value, long style=0)
  67         : wxTextCtrl(spin, wxID_ANY, value, wxDefaultPosition, wxDefaultSize,
  68                      // This is tricky: we want to honour any alignment flags
  69                      // but not wxALIGN_CENTER_VERTICAL because it's the same
  70                      // as wxTE_PASSWORD and we definitely don't want to show
  71                      // asterisks in spin control.
  72                      style & (wxALIGN_MASK | wxTE_PROCESS_ENTER) & ~wxTE_PASSWORD)
  73     {
  74         m_spin = spin;
  75
  76         // remove the default minsize, the spinctrl will have one instead
  77         SetSizeHints(wxDefaultCoord, wxDefaultCoord);
  78     }
  79
  80     virtual ~wxSpinCtrlTextGeneric()
  81     {
  82         // MSW sends extra kill focus event on destroy
  83         if (m_spin)
  84             m_spin->m_textCtrl = NULL;
  85
  86         m_spin = NULL;
  87     }
  88
  89     void OnChar( wxKeyEvent &event )
  90     {
  91         if ( !m_spin->ProcessWindowEvent(event) )
  92             event.Skip();
  93     }
  94
  95     void OnTextEvent(wxCommandEvent& event)
  96     {
  97         wxCommandEvent eventCopy(event);
  98         eventCopy.SetEventObject(m_spin);
  99         eventCopy.SetId(m_spin->GetId());
 100         m_spin->ProcessWindowEvent(eventCopy);
 101     }
 102
 103     void OnKillFocus(wxFocusEvent& event)
 104     {
 105         if (m_spin)
 106             m_spin->ProcessWindowEvent(event);
 107
 108         event.Skip();
 109     }
 110
 111     wxSpinCtrlGenericBase *m_spin;
 112
 113 private:
 114     DECLARE_EVENT_TABLE()
 115 };
 116
 117 BEGIN_EVENT_TABLE(wxSpinCtrlTextGeneric, wxTextCtrl)
 118     EVT_CHAR(wxSpinCtrlTextGeneric::OnChar)
 119
 120     // Forward the text events to wxSpinCtrl itself adjusting them slightly in
 121     // the process.
 122     EVT_TEXT(wxID_ANY, wxSpinCtrlTextGeneric::OnTextEvent)
 123
 124     // And we need to forward this one too as wxSpinCtrl is supposed to
 125     // generate it if wxTE_PROCESS_ENTER is used with it (and if it isn't,
 126     // we're never going to get EVT_TEXT_ENTER in the first place).
 127     EVT_TEXT_ENTER(wxID_ANY, wxSpinCtrlTextGeneric::OnTextEvent)
 128
 129     EVT_KILL_FOCUS(wxSpinCtrlTextGeneric::OnKillFocus)
 130 END_EVENT_TABLE()
 131
 132 // ----------------------------------------------------------------------------
 133 // wxSpinCtrlButtonGeneric: spin button used by spin control
 134 // ----------------------------------------------------------------------------
 135
 136 class wxSpinCtrlButtonGeneric : public wxSpinButton
 137 {
 138 public:
 139     wxSpinCtrlButtonGeneric(wxSpinCtrlGenericBase *spin, int style)
 140         : wxSpinButton(spin, wxID_ANY, wxDefaultPosition,
 141                        wxDefaultSize, style | wxSP_VERTICAL)
 142     {
 143         m_spin = spin;
 144
 145         SetRange(-SPINCTRLBUT_MAX, SPINCTRLBUT_MAX);
 146
 147         // remove the default minsize, the spinctrl will have one instead
 148         SetSizeHints(wxDefaultCoord, wxDefaultCoord);
 149     }
 150
 151     void OnSpinButton(wxSpinEvent& event)
 152     {
 153         if (m_spin)
 154             m_spin->OnSpinButton(event);
 155     }
 156
 157     wxSpinCtrlGenericBase *m_spin;
 158
 159 private:
 160     DECLARE_EVENT_TABLE()
 161 };
 162
 163 BEGIN_EVENT_TABLE(wxSpinCtrlButtonGeneric, wxSpinButton)
 164     EVT_SPIN_UP(  wxID_ANY, wxSpinCtrlButtonGeneric::OnSpinButton)
 165     EVT_SPIN_DOWN(wxID_ANY, wxSpinCtrlButtonGeneric::OnSpinButton)
 166 END_EVENT_TABLE()
 167
 168 // ============================================================================
 169 // wxSpinCtrlGenericBase
 170 // ============================================================================
 171
 172 // ----------------------------------------------------------------------------
 173 // wxSpinCtrlGenericBase creation
 174 // ----------------------------------------------------------------------------
 175
 176 void wxSpinCtrlGenericBase::Init()
 177 {
 178     m_value         = 0;
 179     m_min           = 0;
 180     m_max           = 100;
 181     m_increment     = 1;
 182     m_snap_to_ticks = false;
 183
 184     m_spin_value    = 0;
 185
 186     m_textCtrl = NULL;
 187     m_spinButton  = NULL;
 188 }
 189
 190 bool wxSpinCtrlGenericBase::Create(wxWindow *parent,
 191                                    wxWindowID id,
 192                                    const wxString& value,
 193                                    const wxPoint& pos, const wxSize& size,
 194                                    long style,
 195                                    double min, double max, double initial,
 196                                    double increment,
 197                                    const wxString& name)
 198 {
 199     // don't use borders for this control itself, it wouldn't look good with
 200     // the text control borders (but we might want to use style border bits to
 201     // select the text control style)
 202     if ( !wxControl::Create(parent, id, wxDefaultPosition, wxDefaultSize,
 203                             (style & ~wxBORDER_MASK) | wxBORDER_NONE,
 204                             wxDefaultValidator, name) )
 205     {
 206         return false;
 207     }
 208
 209     m_value = initial;
 210     m_min   = min;
 211     m_max   = max;
 212     m_increment = increment;
 213
 214     m_textCtrl   = new wxSpinCtrlTextGeneric(this, value, style);
 215     m_spinButton = new wxSpinCtrlButtonGeneric(this, style);
 216
 217 #if wxUSE_TOOLTIPS
 218     m_textCtrl->SetToolTip(GetToolTipText());
 219     m_spinButton->SetToolTip(GetToolTipText());
 220 #endif // wxUSE_TOOLTIPS
 221
 222     m_spin_value = m_spinButton->GetValue();
 223
 224     // the string value overrides the numeric one (for backwards compatibility
 225     // reasons and also because it is simpler to satisfy the string value which
 226     // comes much sooner in the list of arguments and leave the initial
 227     // parameter unspecified)
 228     if ( !value.empty() )
 229     {
 230         double d;
 231         if ( DoTextToValue(value, &d) )
 232         {
 233             m_value = d;
 234             m_textCtrl->SetValue(DoValueToText(m_value));
 235         }
 236     }
 237
 238     SetInitialSize(size);
 239     Move(pos);
 240
 241     return true;
 242 }
 243
 244 wxSpinCtrlGenericBase::~wxSpinCtrlGenericBase()
 245 {
 246     // delete the controls now, don't leave them alive even though they would
 247     // still be eventually deleted by our parent - but it will be too late, the
 248     // user code expects them to be gone now
 249
 250     if (m_textCtrl)
 251     {
 252         // null this since MSW sends KILL_FOCUS on deletion, see ~wxSpinCtrlTextGeneric
 253         wxDynamicCast(m_textCtrl, wxSpinCtrlTextGeneric)->m_spin = NULL;
 254
 255         wxSpinCtrlTextGeneric *text = (wxSpinCtrlTextGeneric*)m_textCtrl;
 256         m_textCtrl = NULL;
 257         delete text;
 258     }
 259
 260     wxDELETE(m_spinButton);
 261 }
 262
 263 wxWindowList wxSpinCtrlGenericBase::GetCompositeWindowParts() const
 264 {
 265     wxWindowList parts;
 266     parts.push_back(m_textCtrl);
 267     parts.push_back(m_spinButton);
 268     return parts;
 269 }
 270
 271 // ----------------------------------------------------------------------------
 272 // geometry
 273 // ----------------------------------------------------------------------------
 274
 275 wxSize wxSpinCtrlGenericBase::DoGetBestSize() const
 276 {
 277     return DoGetSizeFromTextSize(m_textCtrl->GetBestSize().x, -1);
 278 }
 279
 280 wxSize wxSpinCtrlGenericBase::DoGetSizeFromTextSize(int xlen, int ylen) const
 281 {
 282     wxSize sizeBtn  = m_spinButton->GetBestSize();
 283     wxSize totalS( m_textCtrl->GetBestSize() );
 284
 285     wxSize tsize(xlen + sizeBtn.x + MARGIN, totalS.y);
 286 #if defined(__WXMSW__)
 287     tsize.IncBy(0.4 * totalS.y + 4, 0);
 288 #elif defined(__WXGTK__)
 289     tsize.IncBy(totalS.y + 10, 0);
 290 #endif // MSW GTK
 291
 292     // Check if the user requested a non-standard height.
 293     if ( ylen > 0 )
 294         tsize.IncBy(0, ylen - GetCharHeight());
 295
 296     return tsize;
 297 }
 298
 299 void wxSpinCtrlGenericBase::DoMoveWindow(int x, int y, int width, int height)
 300 {
 301     wxControl::DoMoveWindow(x, y, width, height);
 302
 303     // position the subcontrols inside the client area
 304     wxSize sizeBtn = m_spinButton->GetSize();
 305
 306     wxCoord wText = width - sizeBtn.x - MARGIN;
 307     m_textCtrl->SetSize(0, 0, wText, height);
 308     m_spinButton->SetSize(0 + wText + MARGIN, 0, wxDefaultCoord, height);
 309 }
 310
 311 // ----------------------------------------------------------------------------
 312 // operations forwarded to the subcontrols
 313 // ----------------------------------------------------------------------------
 314
 315 void wxSpinCtrlGenericBase::SetFocus()
 316 {
 317     if ( m_textCtrl )
 318         m_textCtrl->SetFocus();
 319 }
 320
 321 #ifdef __WXMSW__
 322
 323 void wxSpinCtrlGenericBase::DoEnable(bool enable)
 324 {
 325      wxSpinCtrlBase::DoEnable(enable);
 326 }
 327
 328 #endif // __WXMSW__
 329
 330 bool wxSpinCtrlGenericBase::Enable(bool enable)
 331 {
 332     if ( !wxSpinCtrlBase::Enable(enable) )
 333         return false;
 334
 335     m_spinButton->Enable(enable);
 336     m_textCtrl->Enable(enable);
 337
 338     return true;
 339 }
 340
 341 bool wxSpinCtrlGenericBase::Show(bool show)
 342 {
 343     if ( !wxControl::Show(show) )
 344         return false;
 345
 346     // under GTK Show() is called the first time before we are fully
 347     // constructed
 348     if ( m_spinButton )
 349     {
 350         m_spinButton->Show(show);
 351         m_textCtrl->Show(show);
 352     }
 353
 354     return true;
 355 }
 356
 357 #if wxUSE_TOOLTIPS
 358 void wxSpinCtrlGenericBase::DoSetToolTip(wxToolTip *tip)
 359 {
 360     // Notice that we must check for the subcontrols not being NULL (as they
 361     // could be if we were created with the default ctor and this is called
 362     // before Create() for some reason) and that we can't call SetToolTip(tip)
 363     // because this would take ownership of the wxToolTip object (twice).
 364     if ( m_textCtrl )
 365     {
 366         if ( tip )
 367             m_textCtrl->SetToolTip(tip->GetTip());
 368         else
 369             m_textCtrl->SetToolTip(NULL);
 370     }
 371
 372     if ( m_spinButton )
 373     {
 374         if( tip )
 375             m_spinButton->SetToolTip(tip->GetTip());
 376         else
 377             m_spinButton->SetToolTip(NULL);
 378     }
 379
 380     wxWindowBase::DoSetToolTip(tip);
 381 }
 382 #endif // wxUSE_TOOLTIPS
 383
 384 bool wxSpinCtrlGenericBase::SetBackgroundColour(const wxColour& colour)
 385 {
 386     // We need to provide this otherwise the entire composite window
 387     // background and therefore the between component spaces
 388     // will be changed.
 389     if ( m_textCtrl )
 390         return m_textCtrl->SetBackgroundColour(colour);
 391
 392     return true;
 393 }
 394
 395 // ----------------------------------------------------------------------------
 396 // Handle sub controls events
 397 // ----------------------------------------------------------------------------
 398
 399 BEGIN_EVENT_TABLE(wxSpinCtrlGenericBase, wxSpinCtrlBase)
 400     EVT_CHAR(wxSpinCtrlGenericBase::OnTextChar)
 401     EVT_KILL_FOCUS(wxSpinCtrlGenericBase::OnTextLostFocus)
 402 END_EVENT_TABLE()
 403
 404 void wxSpinCtrlGenericBase::OnSpinButton(wxSpinEvent& event)
 405 {
 406     event.Skip();
 407
 408     // Sync the textctrl since the user expects that the button will modify
 409     // what they see in the textctrl.
 410     SyncSpinToText();
 411
 412     int spin_value = event.GetPosition();
 413     double step = (event.GetEventType() == wxEVT_SCROLL_LINEUP) ? 1 : -1;
 414
 415     // Use the spinbutton's acceleration, if any, but not if wrapping around
 416     if (((spin_value >= 0) && (m_spin_value >= 0)) || ((spin_value <= 0) && (m_spin_value <= 0)))
 417         step *= abs(spin_value - m_spin_value);
 418
 419     double value = AdjustToFitInRange(m_value + step*m_increment);
 420
 421     // Ignore the edges when it wraps since the up/down event may be opposite
 422     // They are in GTK and Mac
 423     if (abs(spin_value - m_spin_value) > SPINCTRLBUT_MAX)
 424     {
 425         m_spin_value = spin_value;
 426         return;
 427     }
 428
 429     m_spin_value = spin_value;
 430
 431     if ( DoSetValue(value) )
 432         DoSendEvent();
 433 }
 434
 435 void wxSpinCtrlGenericBase::OnTextLostFocus(wxFocusEvent& event)
 436 {
 437     SyncSpinToText();
 438     DoSendEvent();
 439
 440     event.Skip();
 441 }
 442
 443 void wxSpinCtrlGenericBase::OnTextChar(wxKeyEvent& event)
 444 {
 445     if ( !HasFlag(wxSP_ARROW_KEYS) )
 446     {
 447         event.Skip();
 448         return;
 449     }
 450
 451     double value = m_value;
 452     switch ( event.GetKeyCode() )
 453     {
 454         case WXK_UP :
 455             value += m_increment;
 456             break;
 457
 458         case WXK_DOWN :
 459             value -= m_increment;
 460             break;
 461
 462         case WXK_PAGEUP :
 463             value += m_increment * 10.0;
 464             break;
 465
 466         case WXK_PAGEDOWN :
 467             value -= m_increment * 10.0;
 468             break;
 469
 470         default:
 471             event.Skip();
 472             return;
 473     }
 474
 475     value = AdjustToFitInRange(value);
 476
 477     SyncSpinToText();
 478
 479     if ( DoSetValue(value) )
 480         DoSendEvent();
 481 }
 482
 483 // ----------------------------------------------------------------------------
 484 // Textctrl functions
 485 // ----------------------------------------------------------------------------
 486
 487 bool wxSpinCtrlGenericBase::SyncSpinToText()
 488 {
 489     if ( !m_textCtrl || !m_textCtrl->IsModified() )
 490         return false;
 491
 492     double textValue;
 493     if ( DoTextToValue(m_textCtrl->GetValue(), &textValue) )
 494     {
 495         if (textValue > m_max)
 496             textValue = m_max;
 497         else if (textValue < m_min)
 498             textValue = m_min;
 499     }
 500     else // text contents is not a valid number at all
 501     {
 502         // replace its contents with the last valid value
 503         textValue = m_value;
 504     }
 505
 506     // we must always set the value here, even if it's equal to m_value, as
 507     // otherwise we could be left with an out of range value when leaving the
 508     // text control and the current value is already m_max for example
 509     return DoSetValue(textValue);
 510 }
 511
 512 // ----------------------------------------------------------------------------
 513 // changing value and range
 514 // ----------------------------------------------------------------------------
 515
 516 void wxSpinCtrlGenericBase::SetValue(const wxString& text)
 517 {
 518     wxCHECK_RET( m_textCtrl, wxT("invalid call to wxSpinCtrl::SetValue") );
 519
 520     double val;
 521     if ( DoTextToValue(text, &val) && InRange(val) )
 522     {
 523         DoSetValue(val);
 524     }
 525     else // not a number at all or out of range
 526     {
 527         m_textCtrl->SetValue(text);
 528         m_textCtrl->SelectAll();
 529     }
 530 }
 531
 532 bool wxSpinCtrlGenericBase::DoSetValue(double val)
 533 {
 534     wxCHECK_MSG( m_textCtrl, false, wxT("invalid call to wxSpinCtrl::SetValue") );
 535
 536     if ( val < m_min )
 537         val = m_min;
 538     if ( val > m_max )
 539         val = m_max;
 540
 541     if ( m_snap_to_ticks && (m_increment != 0) )
 542     {
 543         double snap_value = val / m_increment;
 544
 545         if (wxFinite(snap_value)) // FIXME what to do about a failure?
 546         {
 547             if ((snap_value - floor(snap_value)) < (ceil(snap_value) - snap_value))
 548                 val = floor(snap_value) * m_increment;
 549             else
 550                 val = ceil(snap_value) * m_increment;
 551         }
 552     }
 553
 554     wxString str(DoValueToText(val));
 555
 556     if ((val != m_value) || (str != m_textCtrl->GetValue()))
 557     {
 558         if ( !DoTextToValue(str, &m_value ) )    // wysiwyg for textctrl
 559             m_value = val;
 560         m_textCtrl->SetValue( str );
 561         m_textCtrl->SelectAll();
 562         m_textCtrl->DiscardEdits();
 563         return true;
 564     }
 565
 566     return false;
 567 }
 568
 569 double wxSpinCtrlGenericBase::AdjustToFitInRange(double value) const
 570 {
 571     if (value < m_min)
 572         value = HasFlag(wxSP_WRAP) ? m_max : m_min;
 573     if (value > m_max)
 574         value = HasFlag(wxSP_WRAP) ? m_min : m_max;
 575
 576     return value;
 577 }
 578
 579 void wxSpinCtrlGenericBase::DoSetRange(double min, double max)
 580 {
 581     m_min = min;
 582     if ( m_value < m_min )
 583         DoSetValue(m_min);
 584     m_max = max;
 585     if ( m_value > m_max )
 586         DoSetValue(m_max);
 587 }
 588
 589 void wxSpinCtrlGenericBase::DoSetIncrement(double inc)
 590 {
 591     m_increment = inc;
 592 }
 593
 594 void wxSpinCtrlGenericBase::SetSnapToTicks(bool snap_to_ticks)
 595 {
 596     m_snap_to_ticks = snap_to_ticks;
 597     DoSetValue(m_value);
 598 }
 599
 600 void wxSpinCtrlGenericBase::SetSelection(long from, long to)
 601 {
 602     wxCHECK_RET( m_textCtrl, wxT("invalid call to wxSpinCtrl::SetSelection") );
 603
 604     m_textCtrl->SetSelection(from, to);
 605 }
 606
 607 #ifndef wxHAS_NATIVE_SPINCTRL
 608
 609 //-----------------------------------------------------------------------------
 610 // wxSpinCtrl
 611 //-----------------------------------------------------------------------------
 612
 613 bool wxSpinCtrl::SetBase(int base)
 614 {
 615     // Currently we only support base 10 and 16. We could add support for base
 616     // 8 quite easily but wxMSW doesn't support it natively so don't bother.
 617     if ( base != 10 && base != 16 )
 618         return false;
 619
 620     if ( base == m_base )
 621         return true;
 622
 623     // Update the current control contents to show in the new base: be careful
 624     // to call DoTextToValue() before changing the base...
 625     double val;
 626     const bool hasValidVal = DoTextToValue(m_textCtrl->GetValue(), &val);
 627
 628     m_base = base;
 629
 630     // ... but DoValueToText() after doing it.
 631     if ( hasValidVal )
 632         m_textCtrl->SetValue(DoValueToText(val));
 633
 634     return true;
 635 }
 636
 637 void wxSpinCtrl::DoSendEvent()
 638 {
 639     wxSpinEvent event( wxEVT_SPINCTRL, GetId());
 640     event.SetEventObject( this );
 641     event.SetPosition((int)(m_value + 0.5)); // FIXME should be SetValue
 642     event.SetString(m_textCtrl->GetValue());
 643     GetEventHandler()->ProcessEvent( event );
 644 }
 645
 646 bool wxSpinCtrl::DoTextToValue(const wxString& text, double *val)
 647 {
 648     long lval;
 649     if ( !text.ToLong(&lval, GetBase()) )
 650         return false;
 651
 652     *val = static_cast<double>(lval);
 653
 654     return true;
 655 }
 656
 657 wxString wxSpinCtrl::DoValueToText(double val)
 658 {
 659     switch ( GetBase() )
 660     {
 661         case 16:
 662             return wxPrivate::wxSpinCtrlFormatAsHex(static_cast<long>(val),
 663                                                     GetMax());
 664
 665         default:
 666             wxFAIL_MSG( wxS("Unsupported spin control base") );
 667             // Fall through
 668
 669         case 10:
 670             return wxString::Format("%ld", static_cast<long>(val));
 671     }
 672 }
 673
 674 #endif // !wxHAS_NATIVE_SPINCTRL
 675
 676 //-----------------------------------------------------------------------------
 677 // wxSpinCtrlDouble
 678 //-----------------------------------------------------------------------------
 679
 680 IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrlDouble, wxSpinCtrlGenericBase)
 681
 682 void wxSpinCtrlDouble::DoSendEvent()
 683 {
 684     wxSpinDoubleEvent event( wxEVT_SPINCTRLDOUBLE, GetId());
 685     event.SetEventObject( this );
 686     event.SetValue(m_value);
 687     event.SetString(m_textCtrl->GetValue());
 688     GetEventHandler()->ProcessEvent( event );
 689 }
 690
 691 bool wxSpinCtrlDouble::DoTextToValue(const wxString& text, double *val)
 692 {
 693     return text.ToDouble(val);
 694 }
 695
 696 wxString wxSpinCtrlDouble::DoValueToText(double val)
 697 {
 698     return wxString::Format(m_format, val);
 699 }
 700
 701 void wxSpinCtrlDouble::SetDigits(unsigned digits)
 702 {
 703     wxCHECK_RET( digits <= 20, "too many digits for wxSpinCtrlDouble" );
 704
 705     if ( digits == m_digits )
 706         return;
 707
 708     m_digits = digits;
 709
 710     m_format.Printf(wxT("%%0.%ulf"), digits);
 711
 712     DoSetValue(m_value);
 713 }
 714
 715 #endif // wxUSE_SPINBTN
 716
 717 #endif // !wxPort-with-native-spinctrl
 718
 719 #endif // wxUSE_SPINCTRL