src/osx/textctrl_osx.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/textctrl_osx.cpp
   3 // Purpose:     wxTextCtrl
   4 // Author:      Stefan Csomor
   5 // Modified by: Ryan Norton (MLTE GetLineLength and GetLineText)
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id: textctrl.cpp 54820 2008-07-29 20:04:11Z SC $
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #if wxUSE_TEXTCTRL
  15
  16 #include "wx/textctrl.h"
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/intl.h"
  20     #include "wx/app.h"
  21     #include "wx/utils.h"
  22     #include "wx/dc.h"
  23     #include "wx/button.h"
  24     #include "wx/menu.h"
  25     #include "wx/settings.h"
  26     #include "wx/msgdlg.h"
  27     #include "wx/toplevel.h"
  28 #endif
  29
  30 #ifdef __DARWIN__
  31     #include <sys/types.h>
  32     #include <sys/stat.h>
  33 #else
  34     #include <stat.h>
  35 #endif
  36
  37 #if wxUSE_STD_IOSTREAM
  38     #if wxUSE_IOSTREAMH
  39         #include <fstream.h>
  40     #else
  41         #include <fstream>
  42     #endif
  43 #endif
  44
  45 #include "wx/filefn.h"
  46 #include "wx/sysopt.h"
  47 #include "wx/thread.h"
  48
  49 #include "wx/osx/private.h"
  50
  51 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxTextCtrlBase)
  52
  53 BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase)
  54     EVT_DROP_FILES(wxTextCtrl::OnDropFiles)
  55     EVT_CHAR(wxTextCtrl::OnChar)
  56     EVT_KEY_DOWN(wxTextCtrl::OnKeyDown)
  57     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
  58     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
  59     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
  60     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
  61     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
  62     EVT_MENU(wxID_CLEAR, wxTextCtrl::OnDelete)
  63     EVT_MENU(wxID_SELECTALL, wxTextCtrl::OnSelectAll)
  64
  65     EVT_CONTEXT_MENU(wxTextCtrl::OnContextMenu)
  66
  67     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
  68     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
  69     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
  70     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
  71     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
  72     EVT_UPDATE_UI(wxID_CLEAR, wxTextCtrl::OnUpdateDelete)
  73     EVT_UPDATE_UI(wxID_SELECTALL, wxTextCtrl::OnUpdateSelectAll)
  74 END_EVENT_TABLE()
  75
  76
  77 void wxTextCtrl::Init()
  78 {
  79     m_dirty = false;
  80
  81     m_privateContextMenu = NULL;
  82     m_triggerUpdateEvents = true ;
  83 }
  84
  85 wxTextCtrl::~wxTextCtrl()
  86 {
  87 #if wxUSE_MENUS
  88     delete m_privateContextMenu;
  89 #endif
  90 }
  91
  92 bool wxTextCtrl::Create( wxWindow *parent,
  93     wxWindowID id,
  94     const wxString& str,
  95     const wxPoint& pos,
  96     const wxSize& size,
  97     long style,
  98     const wxValidator& validator,
  99     const wxString& name )
 100 {
 101     m_macIsUserPane = false ;
 102     m_editable = true ;
 103
 104     if ( ! (style & wxNO_BORDER) )
 105         style = (style & ~wxBORDER_MASK) | wxSUNKEN_BORDER ;
 106
 107     if ( !wxTextCtrlBase::Create( parent, id, pos, size, style & ~(wxHSCROLL | wxVSCROLL), validator, name ) )
 108         return false;
 109
 110     if ( m_windowStyle & wxTE_MULTILINE )
 111     {
 112         // always turn on this style for multi-line controls
 113         m_windowStyle |= wxTE_PROCESS_ENTER;
 114         style |= wxTE_PROCESS_ENTER ;
 115     }
 116
 117
 118     m_peer = wxWidgetImpl::CreateTextControl( this, GetParent(), GetId(), str, pos, size, style, GetExtraStyle() );
 119
 120     MacPostControlCreate(pos, size) ;
 121
 122 #if wxOSX_USE_COCOA
 123     // under carbon everything can already be set before the MacPostControlCreate embedding takes place
 124     // but under cocoa for single line textfields this only works after everything has been set up
 125     GetTextPeer()->SetStringValue(str);
 126 #endif
 127
 128     // only now the embedding is correct and we can do a positioning update
 129
 130     MacSuperChangedPosition() ;
 131
 132     if ( m_windowStyle & wxTE_READONLY)
 133         SetEditable( false ) ;
 134
 135     SetCursor( wxCursor( wxCURSOR_IBEAM ) ) ;
 136
 137     return true;
 138 }
 139
 140 wxTextWidgetImpl* wxTextCtrl::GetTextPeer() const
 141 {
 142     return dynamic_cast<wxTextWidgetImpl*> (m_peer);
 143 }
 144
 145 void wxTextCtrl::MacSuperChangedPosition()
 146 {
 147     wxWindow::MacSuperChangedPosition() ;
 148 #if wxOSX_USE_CARBON
 149     GetPeer()->SuperChangedPosition() ;
 150 #endif
 151 }
 152
 153 void wxTextCtrl::MacVisibilityChanged()
 154 {
 155 #if wxOSX_USE_CARBON
 156     GetPeer()->VisibilityChanged( GetPeer()->IsVisible() );
 157 #endif
 158 }
 159
 160 void wxTextCtrl::MacCheckSpelling(bool check)
 161 {
 162     GetTextPeer()->CheckSpelling(check);
 163 }
 164
 165 void wxTextCtrl::SetMaxLength(unsigned long len)
 166 {
 167     m_maxLength = len ;
 168 }
 169
 170 bool wxTextCtrl::SetFont( const wxFont& font )
 171 {
 172     if ( !wxTextCtrlBase::SetFont( font ) )
 173         return false ;
 174
 175     GetPeer()->SetFont( font , GetForegroundColour() , GetWindowStyle(), false /* dont ignore black */ ) ;
 176
 177     return true ;
 178 }
 179
 180 bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
 181 {
 182     if (GetTextPeer())
 183         GetTextPeer()->SetStyle( start , end , style ) ;
 184
 185     return true ;
 186 }
 187
 188 bool wxTextCtrl::SetDefaultStyle(const wxTextAttr& style)
 189 {
 190     wxTextCtrlBase::SetDefaultStyle( style ) ;
 191     SetStyle( -1  /*current selection*/  , -1 /*current selection*/ , GetDefaultStyle() ) ;
 192
 193     return true ;
 194 }
 195
 196 bool wxTextCtrl::IsModified() const
 197 {
 198     return m_dirty;
 199 }
 200
 201 bool wxTextCtrl::AcceptsFocus() const
 202 {
 203     // we don't want focus if we can't be edited
 204     return /*IsEditable() && */ wxControl::AcceptsFocus();
 205 }
 206
 207 wxSize wxTextCtrl::DoGetBestSize() const
 208 {
 209     if (GetTextPeer())
 210     {
 211         wxSize size = GetTextPeer()->GetBestSize();
 212         if (size.x > 0 && size.y > 0)
 213             return size;
 214     }
 215
 216     int wText, hText;
 217
 218     // these are the numbers from the HIG:
 219     // we reduce them by the borders first
 220     wText = 100 ;
 221
 222     switch ( m_windowVariant )
 223     {
 224         case wxWINDOW_VARIANT_NORMAL :
 225             hText = 22 - 6 ;
 226             break ;
 227
 228         case wxWINDOW_VARIANT_SMALL :
 229             hText = 19 - 6 ;
 230             break ;
 231
 232         case wxWINDOW_VARIANT_MINI :
 233             hText = 15 - 6 ;
 234             break ;
 235
 236         default :
 237             hText = 22 - 6;
 238             break ;
 239     }
 240
 241     // as the above numbers have some free space around the text
 242     // we get 5 lines like this anyway
 243     if ( m_windowStyle & wxTE_MULTILINE )
 244          hText *= 5 ;
 245
 246     if ( !HasFlag(wxNO_BORDER) )
 247         hText += 6 ;
 248
 249     return wxSize(wText, hText);
 250 }
 251
 252 bool wxTextCtrl::GetStyle(long position, wxTextAttr& style)
 253 {
 254     return GetTextPeer()->GetStyle(position, style);
 255 }
 256
 257 void wxTextCtrl::MarkDirty()
 258 {
 259     m_dirty = true;
 260 }
 261
 262 void wxTextCtrl::DiscardEdits()
 263 {
 264     m_dirty = false;
 265 }
 266
 267 int wxTextCtrl::GetNumberOfLines() const
 268 {
 269     return GetTextPeer()->GetNumberOfLines() ;
 270 }
 271
 272 long wxTextCtrl::XYToPosition(long x, long y) const
 273 {
 274     return GetTextPeer()->XYToPosition( x , y ) ;
 275 }
 276
 277 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
 278 {
 279     return GetTextPeer()->PositionToXY( pos , x , y ) ;
 280 }
 281
 282 void wxTextCtrl::ShowPosition(long pos)
 283 {
 284     return GetTextPeer()->ShowPosition(pos) ;
 285 }
 286
 287 int wxTextCtrl::GetLineLength(long lineNo) const
 288 {
 289     return GetTextPeer()->GetLineLength(lineNo) ;
 290 }
 291
 292 wxString wxTextCtrl::GetLineText(long lineNo) const
 293 {
 294     return GetTextPeer()->GetLineText(lineNo) ;
 295 }
 296
 297 void wxTextCtrl::Remove(long from, long to)
 298 {
 299     wxTextEntry::Remove(from, to);
 300     if ( m_triggerUpdateEvents )
 301         SendTextUpdatedEvent();
 302 }
 303
 304 void wxTextCtrl::WriteText(const wxString& str)
 305 {
 306     wxTextEntry::WriteText( str ) ;
 307     if ( m_triggerUpdateEvents )
 308         SendTextUpdatedEvent();
 309 }
 310
 311 void wxTextCtrl::Clear()
 312 {
 313     wxTextEntry::Clear() ;
 314     SendTextUpdatedEvent();
 315 }
 316
 317 void wxTextCtrl::Copy()
 318 {
 319     if (CanCopy())
 320     {
 321         wxClipboardTextEvent evt(wxEVT_COMMAND_TEXT_COPY, GetId());
 322         evt.SetEventObject(this);
 323         if (!GetEventHandler()->ProcessEvent(evt))
 324         {
 325             wxTextEntry::Copy();
 326         }
 327     }
 328 }
 329
 330 void wxTextCtrl::Cut()
 331 {
 332     if (CanCut())
 333     {
 334         wxClipboardTextEvent evt(wxEVT_COMMAND_TEXT_CUT, GetId());
 335         evt.SetEventObject(this);
 336         if (!GetEventHandler()->ProcessEvent(evt))
 337         {
 338             wxTextEntry::Cut();
 339
 340             SendTextUpdatedEvent();
 341         }
 342     }
 343 }
 344
 345 void wxTextCtrl::Paste()
 346 {
 347     if (CanPaste())
 348     {
 349         wxClipboardTextEvent evt(wxEVT_COMMAND_TEXT_PASTE, GetId());
 350         evt.SetEventObject(this);
 351         if (!GetEventHandler()->ProcessEvent(evt))
 352         {
 353             wxTextEntry::Paste();
 354
 355             // TODO: eventually we should add setting the default style again
 356             SendTextUpdatedEvent();
 357         }
 358     }
 359 }
 360
 361 void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event)
 362 {
 363     // By default, load the first file into the text window.
 364     if (event.GetNumberOfFiles() > 0)
 365         LoadFile( event.GetFiles()[0] );
 366 }
 367
 368 void wxTextCtrl::OnKeyDown(wxKeyEvent& event)
 369 {
 370     if ( event.GetModifiers() == wxMOD_CMD )
 371     {
 372         switch( event.GetKeyCode() )
 373         {
 374             case 'A':
 375                 SelectAll();
 376                 return;
 377             case 'C':
 378                 if ( CanCopy() )
 379                     Copy() ;
 380                 return;
 381             case 'V':
 382                 if ( CanPaste() )
 383                     Paste() ;
 384                 return;
 385             case 'X':
 386                 if ( CanCut() )
 387                     Cut() ;
 388                 return;
 389             default:
 390                 break;
 391         }
 392     }
 393     // no, we didn't process it
 394     event.Skip();
 395 }
 396
 397 void wxTextCtrl::OnChar(wxKeyEvent& event)
 398 {
 399     int key = event.GetKeyCode() ;
 400     bool eat_key = false ;
 401     long from, to;
 402
 403     if ( !IsEditable() && !event.IsKeyInCategory(WXK_CATEGORY_ARROW | WXK_CATEGORY_TAB) &&
 404         !( key == WXK_RETURN && ( (m_windowStyle & wxTE_PROCESS_ENTER) || (m_windowStyle & wxTE_MULTILINE) ) )
 405 //        && key != WXK_PAGEUP && key != WXK_PAGEDOWN && key != WXK_HOME && key != WXK_END
 406         )
 407     {
 408         // eat it
 409         return ;
 410     }
 411
 412     // Check if we have reached the max # of chars (if it is set), but still
 413     // allow navigation and deletion
 414     GetSelection( &from, &to );
 415     if ( !IsMultiLine() && m_maxLength && GetValue().length() >= m_maxLength &&
 416         !event.IsKeyInCategory(WXK_CATEGORY_ARROW | WXK_CATEGORY_TAB | WXK_CATEGORY_CUT) &&
 417         !( key == WXK_RETURN && (m_windowStyle & wxTE_PROCESS_ENTER) ) &&
 418         from == to )
 419     {
 420         // eat it, we don't want to add more than allowed # of characters
 421
 422         // TODO: generate EVT_TEXT_MAXLEN()
 423         return;
 424     }
 425
 426     // assume that any key not processed yet is going to modify the control
 427     m_dirty = true;
 428
 429     switch ( key )
 430     {
 431         case WXK_RETURN:
 432             if (m_windowStyle & wxTE_PROCESS_ENTER)
 433             {
 434                 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 435                 event.SetEventObject( this );
 436                 event.SetString( GetValue() );
 437                 if ( HandleWindowEvent(event) )
 438                     return;
 439             }
 440
 441             if ( !(m_windowStyle & wxTE_MULTILINE) )
 442             {
 443                 wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
 444                 if ( tlw && tlw->GetDefaultItem() )
 445                 {
 446                     wxButton *def = wxDynamicCast(tlw->GetDefaultItem(), wxButton);
 447                     if ( def && def->IsEnabled() )
 448                     {
 449                         wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, def->GetId() );
 450                         event.SetEventObject(def);
 451                         def->Command(event);
 452
 453                         return ;
 454                     }
 455                 }
 456
 457                 // this will make wxWidgets eat the ENTER key so that
 458                 // we actually prevent line wrapping in a single line text control
 459                 eat_key = true;
 460             }
 461             break;
 462
 463         case WXK_TAB:
 464             if ( !(m_windowStyle & wxTE_PROCESS_TAB))
 465             {
 466                 int flags = 0;
 467                 if (!event.ShiftDown())
 468                     flags |= wxNavigationKeyEvent::IsForward ;
 469                 if (event.ControlDown())
 470                     flags |= wxNavigationKeyEvent::WinChange ;
 471                 Navigate(flags);
 472
 473                 return;
 474             }
 475             else
 476             {
 477                 // This is necessary (don't know why);
 478                 // otherwise the tab will not be inserted.
 479                 WriteText(wxT("\t"));
 480                 eat_key = true;
 481             }
 482             break;
 483
 484         default:
 485             break;
 486     }
 487
 488     if (!eat_key)
 489     {
 490         // perform keystroke handling
 491         event.Skip(true) ;
 492     }
 493
 494     // osx_cocoa sends its event upon insertText
 495 #if wxOSX_USE_CARBON
 496     if ( ( key >= 0x20 && key < WXK_START ) ||
 497          ( key >= WXK_NUMPAD0 && key <= WXK_DIVIDE ) ||
 498          key == WXK_RETURN ||
 499          key == WXK_DELETE ||
 500          key == WXK_BACK)
 501     {
 502         wxCommandEvent event1(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
 503         event1.SetEventObject( this );
 504         wxPostEvent( GetEventHandler(), event1 );
 505     }
 506 #endif
 507 }
 508
 509 void wxTextCtrl::Command(wxCommandEvent & event)
 510 {
 511     SetValue(event.GetString());
 512     ProcessCommand(event);
 513 }
 514
 515 // ----------------------------------------------------------------------------
 516 // standard handlers for standard edit menu events
 517 // ----------------------------------------------------------------------------
 518
 519 // CS: Context Menus only work with MLTE implementations or non-multiline HIViews at the moment
 520
 521 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
 522 {
 523     Cut();
 524 }
 525
 526 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
 527 {
 528     Copy();
 529 }
 530
 531 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
 532 {
 533     Paste();
 534 }
 535
 536 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
 537 {
 538     Undo();
 539 }
 540
 541 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
 542 {
 543     Redo();
 544 }
 545
 546 void wxTextCtrl::OnDelete(wxCommandEvent& WXUNUSED(event))
 547 {
 548     long from, to;
 549
 550     GetSelection( &from, &to );
 551     if (from != -1 && to != -1)
 552         Remove( from, to );
 553 }
 554
 555 void wxTextCtrl::OnSelectAll(wxCommandEvent& WXUNUSED(event))
 556 {
 557     SetSelection(-1, -1);
 558 }
 559
 560 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
 561 {
 562     event.Enable( CanCut() );
 563 }
 564
 565 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
 566 {
 567     event.Enable( CanCopy() );
 568 }
 569
 570 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
 571 {
 572     event.Enable( CanPaste() );
 573 }
 574
 575 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
 576 {
 577     event.Enable( CanUndo() );
 578 }
 579
 580 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
 581 {
 582     event.Enable( CanRedo() );
 583 }
 584
 585 void wxTextCtrl::OnUpdateDelete(wxUpdateUIEvent& event)
 586 {
 587     long from, to;
 588
 589     GetSelection( &from, &to );
 590     event.Enable( from != -1 && to != -1 && from != to && IsEditable() ) ;
 591 }
 592
 593 void wxTextCtrl::OnUpdateSelectAll(wxUpdateUIEvent& event)
 594 {
 595     event.Enable(GetLastPosition() > 0);
 596 }
 597
 598 void wxTextCtrl::OnContextMenu(wxContextMenuEvent& event)
 599 {
 600     if ( GetTextPeer()->HasOwnContextMenu() )
 601     {
 602         event.Skip() ;
 603         return ;
 604     }
 605
 606 #if wxUSE_MENUS
 607     if (m_privateContextMenu == NULL)
 608     {
 609         m_privateContextMenu = new wxMenu;
 610         m_privateContextMenu->Append(wxID_UNDO, _("&Undo"));
 611         m_privateContextMenu->Append(wxID_REDO, _("&Redo"));
 612         m_privateContextMenu->AppendSeparator();
 613         m_privateContextMenu->Append(wxID_CUT, _("Cu&t"));
 614         m_privateContextMenu->Append(wxID_COPY, _("&Copy"));
 615         m_privateContextMenu->Append(wxID_PASTE, _("&Paste"));
 616         m_privateContextMenu->Append(wxID_CLEAR, _("&Delete"));
 617         m_privateContextMenu->AppendSeparator();
 618         m_privateContextMenu->Append(wxID_SELECTALL, _("Select &All"));
 619     }
 620
 621     PopupMenu(m_privateContextMenu);
 622 #endif
 623 }
 624
 625 bool wxTextCtrl::MacSetupCursor( const wxPoint& pt )
 626 {
 627     if ( !GetTextPeer()->SetupCursor( pt ) )
 628         return wxWindow::MacSetupCursor( pt ) ;
 629     else
 630         return true ;
 631 }
 632
 633 // ----------------------------------------------------------------------------
 634 // implementation base class
 635 // ----------------------------------------------------------------------------
 636
 637 bool wxTextWidgetImpl::GetStyle(long WXUNUSED(position),
 638                                 wxTextAttr& WXUNUSED(style))
 639 {
 640     return false;
 641 }
 642
 643 void wxTextWidgetImpl::SetStyle(long WXUNUSED(start),
 644                                 long WXUNUSED(end),
 645                                 const wxTextAttr& WXUNUSED(style))
 646 {
 647 }
 648
 649 void wxTextWidgetImpl::Copy()
 650 {
 651 }
 652
 653 void wxTextWidgetImpl::Cut()
 654 {
 655 }
 656
 657 void wxTextWidgetImpl::Paste()
 658 {
 659 }
 660
 661 bool wxTextWidgetImpl::CanPaste() const
 662 {
 663     return false ;
 664 }
 665
 666 void wxTextWidgetImpl::SetEditable(bool WXUNUSED(editable))
 667 {
 668 }
 669
 670 long wxTextWidgetImpl::GetLastPosition() const
 671 {
 672     return GetStringValue().length() ;
 673 }
 674
 675 void wxTextWidgetImpl::Replace( long from , long to , const wxString &val )
 676 {
 677     SetSelection( from , to ) ;
 678     WriteText( val ) ;
 679 }
 680
 681 void wxTextWidgetImpl::Remove( long from , long to )
 682 {
 683     SetSelection( from , to ) ;
 684     WriteText( wxEmptyString) ;
 685 }
 686
 687 void wxTextWidgetImpl::Clear()
 688 {
 689     SetStringValue( wxEmptyString ) ;
 690 }
 691
 692 bool wxTextWidgetImpl::CanUndo() const
 693 {
 694     return false ;
 695 }
 696
 697 void wxTextWidgetImpl::Undo()
 698 {
 699 }
 700
 701 bool wxTextWidgetImpl::CanRedo()  const
 702 {
 703     return false ;
 704 }
 705
 706 void wxTextWidgetImpl::Redo()
 707 {
 708 }
 709
 710 long wxTextWidgetImpl::XYToPosition(long WXUNUSED(x), long WXUNUSED(y)) const
 711 {
 712     return 0 ;
 713 }
 714
 715 bool wxTextWidgetImpl::PositionToXY(long WXUNUSED(pos),
 716                                     long *WXUNUSED(x),
 717                                     long *WXUNUSED(y)) const
 718 {
 719     return false ;
 720 }
 721
 722 void wxTextWidgetImpl::ShowPosition( long WXUNUSED(pos) )
 723 {
 724 }
 725
 726 int wxTextWidgetImpl::GetNumberOfLines() const
 727 {
 728     wxString content = GetStringValue() ;
 729     ItemCount lines = 1;
 730
 731     for (size_t i = 0; i < content.length() ; i++)
 732     {
 733 #if wxOSX_USE_COCOA
 734         if (content[i] == '\n')
 735 #else
 736         if (content[i] == '\r')
 737 #endif
 738             lines++;
 739     }
 740
 741     return lines ;
 742 }
 743
 744 wxString wxTextWidgetImpl::GetLineText(long lineNo) const
 745 {
 746     // TODO: change this if possible to reflect real lines
 747     wxString content = GetStringValue() ;
 748
 749     // Find line first
 750     int count = 0;
 751     for (size_t i = 0; i < content.length() ; i++)
 752     {
 753         if (count == lineNo)
 754         {
 755             // Add chars in line then
 756             wxString tmp;
 757
 758             for (size_t j = i; j < content.length(); j++)
 759             {
 760                 if (content[j] == '\n')
 761                     return tmp;
 762
 763                 tmp += content[j];
 764             }
 765
 766             return tmp;
 767         }
 768
 769         if (content[i] == '\n')
 770             count++;
 771     }
 772
 773     return wxEmptyString ;
 774 }
 775
 776 int wxTextWidgetImpl::GetLineLength(long lineNo) const
 777 {
 778     // TODO: change this if possible to reflect real lines
 779     wxString content = GetStringValue() ;
 780
 781     // Find line first
 782     int count = 0;
 783     for (size_t i = 0; i < content.length() ; i++)
 784     {
 785         if (count == lineNo)
 786         {
 787             // Count chars in line then
 788             count = 0;
 789             for (size_t j = i; j < content.length(); j++)
 790             {
 791                 count++;
 792                 if (content[j] == '\n')
 793                     return count;
 794             }
 795
 796             return count;
 797         }
 798
 799         if (content[i] == '\n')
 800             count++;
 801     }
 802
 803     return 0 ;
 804 }
 805
 806 #endif // wxUSE_TEXTCTRL