src/msw/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/textctrl.cpp
   3 // Purpose:     wxTextCtrl
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   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 #if wxUSE_TEXTCTRL && !(defined(__SMARTPHONE__) && defined(__WXWINCE__))
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/textctrl.h"
  31     #include "wx/settings.h"
  32     #include "wx/brush.h"
  33     #include "wx/utils.h"
  34     #include "wx/intl.h"
  35     #include "wx/log.h"
  36     #include "wx/app.h"
  37     #include "wx/menu.h"
  38     #include "wx/math.h"
  39 #endif
  40
  41 #include "wx/module.h"
  42
  43 #if wxUSE_CLIPBOARD
  44     #include "wx/clipbrd.h"
  45 #endif
  46
  47 #include "wx/textfile.h"
  48
  49 #include <windowsx.h>
  50
  51 #include "wx/msw/private.h"
  52 #include "wx/msw/winundef.h"
  53
  54 #include <string.h>
  55 #include <stdlib.h>
  56
  57 #ifndef __WXWINCE__
  58 #include <sys/types.h>
  59 #endif
  60
  61 #if wxUSE_RICHEDIT
  62
  63 // old mingw32 has richedit stuff directly in windows.h and doesn't have
  64 // richedit.h at all
  65 #if !defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__)
  66     #include <richedit.h>
  67 #endif
  68
  69 #include "wx/msw/missing.h"
  70
  71 #endif // wxUSE_RICHEDIT
  72
  73 // ----------------------------------------------------------------------------
  74 // private classes
  75 // ----------------------------------------------------------------------------
  76
  77 #if wxUSE_RICHEDIT
  78
  79 // this module initializes RichEdit DLL(s) if needed
  80 class wxRichEditModule : public wxModule
  81 {
  82 public:
  83     enum Version
  84     {
  85         Version_1,          // riched32.dll
  86         Version_2or3,       // both use riched20.dll
  87         Version_41,         // msftedit.dll (XP SP1 and Windows 2003)
  88         Version_Max
  89     };
  90
  91     virtual bool OnInit();
  92     virtual void OnExit();
  93
  94     // load the richedit DLL for the specified version of rich edit
  95     static bool Load(Version version);
  96
  97 private:
  98     // the handles to richedit 1.0 and 2.0 (or 3.0) DLLs
  99     static HINSTANCE ms_hRichEdit[Version_Max];
 100
 101     DECLARE_DYNAMIC_CLASS(wxRichEditModule)
 102 };
 103
 104 HINSTANCE wxRichEditModule::ms_hRichEdit[Version_Max] = { NULL, NULL, NULL };
 105
 106 IMPLEMENT_DYNAMIC_CLASS(wxRichEditModule, wxModule)
 107
 108 #endif // wxUSE_RICHEDIT
 109
 110 // a small class used to set m_updatesCount to 0 (to filter duplicate events if
 111 // necessary) and to reset it back to -1 afterwards
 112 class UpdatesCountFilter
 113 {
 114 public:
 115     UpdatesCountFilter(int& count)
 116         : m_count(count)
 117     {
 118         wxASSERT_MSG( m_count == -1, _T("wrong initial m_updatesCount value") );
 119
 120         m_count = 0;
 121     }
 122
 123     ~UpdatesCountFilter()
 124     {
 125         m_count = -1;
 126     }
 127
 128     // return true if an event has been received
 129     bool GotUpdate() const
 130     {
 131         return m_count == 1;
 132     }
 133
 134 private:
 135     int& m_count;
 136
 137     DECLARE_NO_COPY_CLASS(UpdatesCountFilter)
 138 };
 139
 140 // ----------------------------------------------------------------------------
 141 // event tables and other macros
 142 // ----------------------------------------------------------------------------
 143
 144 #if wxUSE_EXTENDED_RTTI
 145 WX_DEFINE_FLAGS( wxTextCtrlStyle )
 146
 147 wxBEGIN_FLAGS( wxTextCtrlStyle )
 148     // new style border flags, we put them first to
 149     // use them for streaming out
 150     wxFLAGS_MEMBER(wxBORDER_SIMPLE)
 151     wxFLAGS_MEMBER(wxBORDER_SUNKEN)
 152     wxFLAGS_MEMBER(wxBORDER_DOUBLE)
 153     wxFLAGS_MEMBER(wxBORDER_RAISED)
 154     wxFLAGS_MEMBER(wxBORDER_STATIC)
 155     wxFLAGS_MEMBER(wxBORDER_NONE)
 156
 157     // old style border flags
 158     wxFLAGS_MEMBER(wxSIMPLE_BORDER)
 159     wxFLAGS_MEMBER(wxSUNKEN_BORDER)
 160     wxFLAGS_MEMBER(wxDOUBLE_BORDER)
 161     wxFLAGS_MEMBER(wxRAISED_BORDER)
 162     wxFLAGS_MEMBER(wxSTATIC_BORDER)
 163     wxFLAGS_MEMBER(wxBORDER)
 164
 165     // standard window styles
 166     wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
 167     wxFLAGS_MEMBER(wxCLIP_CHILDREN)
 168     wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
 169     wxFLAGS_MEMBER(wxWANTS_CHARS)
 170     wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
 171     wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
 172     wxFLAGS_MEMBER(wxVSCROLL)
 173     wxFLAGS_MEMBER(wxHSCROLL)
 174
 175     wxFLAGS_MEMBER(wxTE_PROCESS_ENTER)
 176     wxFLAGS_MEMBER(wxTE_PROCESS_TAB)
 177     wxFLAGS_MEMBER(wxTE_MULTILINE)
 178     wxFLAGS_MEMBER(wxTE_PASSWORD)
 179     wxFLAGS_MEMBER(wxTE_READONLY)
 180     wxFLAGS_MEMBER(wxHSCROLL)
 181     wxFLAGS_MEMBER(wxTE_RICH)
 182     wxFLAGS_MEMBER(wxTE_RICH2)
 183     wxFLAGS_MEMBER(wxTE_AUTO_URL)
 184     wxFLAGS_MEMBER(wxTE_NOHIDESEL)
 185     wxFLAGS_MEMBER(wxTE_LEFT)
 186     wxFLAGS_MEMBER(wxTE_CENTRE)
 187     wxFLAGS_MEMBER(wxTE_RIGHT)
 188     wxFLAGS_MEMBER(wxTE_DONTWRAP)
 189     wxFLAGS_MEMBER(wxTE_LINEWRAP)
 190     wxFLAGS_MEMBER(wxTE_WORDWRAP)
 191
 192 wxEND_FLAGS( wxTextCtrlStyle )
 193
 194 IMPLEMENT_DYNAMIC_CLASS_XTI(wxTextCtrl, wxControl,"wx/textctrl.h")
 195
 196 wxBEGIN_PROPERTIES_TABLE(wxTextCtrl)
 197     wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent )
 198     wxEVENT_PROPERTY( TextEnter , wxEVT_COMMAND_TEXT_ENTER , wxCommandEvent )
 199
 200     wxPROPERTY( Font , wxFont , SetFont , GetFont  , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
 201     wxPROPERTY( Value , wxString , SetValue, GetValue, wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
 202     wxPROPERTY_FLAGS( WindowStyle , wxTextCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
 203 wxEND_PROPERTIES_TABLE()
 204
 205 wxBEGIN_HANDLERS_TABLE(wxTextCtrl)
 206 wxEND_HANDLERS_TABLE()
 207
 208 wxCONSTRUCTOR_6( wxTextCtrl , wxWindow* , Parent , wxWindowID , Id , wxString , Value , wxPoint , Position , wxSize , Size , long , WindowStyle)
 209 #else
 210 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl)
 211 #endif
 212
 213
 214 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 215     EVT_CHAR(wxTextCtrl::OnChar)
 216     EVT_DROP_FILES(wxTextCtrl::OnDropFiles)
 217
 218 #if wxUSE_RICHEDIT
 219     EVT_CONTEXT_MENU(wxTextCtrl::OnContextMenu)
 220 #endif
 221
 222     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 223     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 224     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 225     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 226     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 227     EVT_MENU(wxID_CLEAR, wxTextCtrl::OnDelete)
 228     EVT_MENU(wxID_SELECTALL, wxTextCtrl::OnSelectAll)
 229
 230     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 231     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 232     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 233     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 234     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 235     EVT_UPDATE_UI(wxID_CLEAR, wxTextCtrl::OnUpdateDelete)
 236     EVT_UPDATE_UI(wxID_SELECTALL, wxTextCtrl::OnUpdateSelectAll)
 237
 238     EVT_SET_FOCUS(wxTextCtrl::OnSetFocus)
 239 END_EVENT_TABLE()
 240
 241 // ============================================================================
 242 // implementation
 243 // ============================================================================
 244
 245 // ----------------------------------------------------------------------------
 246 // creation
 247 // ----------------------------------------------------------------------------
 248
 249 void wxTextCtrl::Init()
 250 {
 251 #if wxUSE_RICHEDIT
 252     m_verRichEdit = 0;
 253 #endif // wxUSE_RICHEDIT
 254
 255     m_privateContextMenu = NULL;
 256     m_updatesCount = -1;
 257     m_isNativeCaretShown = true;
 258 }
 259
 260 wxTextCtrl::~wxTextCtrl()
 261 {
 262     delete m_privateContextMenu;
 263 }
 264
 265 bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,
 266                         const wxString& value,
 267                         const wxPoint& pos,
 268                         const wxSize& size,
 269                         long style,
 270                         const wxValidator& validator,
 271                         const wxString& name)
 272 {
 273 #ifdef __WXWINCE__
 274     if ((style & wxBORDER_MASK) == 0)
 275         style |= wxBORDER_SIMPLE;
 276 #endif
 277
 278     // base initialization
 279     if ( !CreateControl(parent, id, pos, size, style, validator, name) )
 280         return false;
 281
 282     // translate wxWin style flags to MSW ones
 283     WXDWORD msStyle = MSWGetCreateWindowFlags();
 284
 285     // do create the control - either an EDIT or RICHEDIT
 286     wxString windowClass = wxT("EDIT");
 287
 288 #if defined(__POCKETPC__) || defined(__SMARTPHONE__)
 289     // A control that capitalizes the first letter
 290     if (style & wxTE_CAPITALIZE)
 291         windowClass = wxT("CAPEDIT");
 292 #endif
 293
 294 #if wxUSE_RICHEDIT
 295     if ( m_windowStyle & wxTE_AUTO_URL )
 296     {
 297         // automatic URL detection only works in RichEdit 2.0+
 298         m_windowStyle |= wxTE_RICH2;
 299     }
 300
 301     if ( m_windowStyle & wxTE_RICH2 )
 302     {
 303         // using richedit 2.0 implies using wxTE_RICH
 304         m_windowStyle |= wxTE_RICH;
 305     }
 306
 307     // we need to load the richedit DLL before creating the rich edit control
 308     if ( m_windowStyle & wxTE_RICH )
 309     {
 310         // versions 2.0, 3.0 and 4.1 of rich edit are mostly compatible with
 311         // each other but not with version 1.0, so we have separate flags for
 312         // the version 1.0 and the others (and so m_verRichEdit may be 0 (plain
 313         // EDIT control), 1 for version 1.0 or 2 for any higher version)
 314         //
 315         // notice that 1.0 has no Unicode support at all so in Unicode build we
 316         // must use another version
 317
 318 #if wxUSE_UNICODE
 319         m_verRichEdit = 2;
 320 #else // !wxUSE_UNICODE
 321         m_verRichEdit = m_windowStyle & wxTE_RICH2 ? 2 : 1;
 322 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
 323
 324         if ( m_verRichEdit == 2 )
 325         {
 326             if ( wxRichEditModule::Load(wxRichEditModule::Version_41) )
 327             {
 328                 // yes, class name for version 4.1 really is 5.0
 329                 windowClass = _T("RICHEDIT50W");
 330             }
 331             else if ( wxRichEditModule::Load(wxRichEditModule::Version_2or3) )
 332             {
 333                 windowClass = _T("RichEdit20")
 334 #if wxUSE_UNICODE
 335                               _T("W");
 336 #else // ANSI
 337                               _T("A");
 338 #endif // Unicode/ANSI
 339             }
 340             else // failed to load msftedit.dll and riched20.dll
 341             {
 342                 m_verRichEdit = 1;
 343             }
 344         }
 345
 346         if ( m_verRichEdit == 1 )
 347         {
 348             if ( wxRichEditModule::Load(wxRichEditModule::Version_1) )
 349             {
 350                 windowClass = _T("RICHEDIT");
 351             }
 352             else // failed to load any richedit control DLL
 353             {
 354                 // only give the error msg once if the DLL can't be loaded
 355                 static bool s_errorGiven = false; // MT ok as only used by GUI
 356
 357                 if ( !s_errorGiven )
 358                 {
 359                     wxLogError(_("Impossible to create a rich edit control, using simple text control instead. Please reinstall riched32.dll"));
 360
 361                     s_errorGiven = true;
 362                 }
 363
 364                 m_verRichEdit = 0;
 365             }
 366         }
 367     }
 368 #endif // wxUSE_RICHEDIT
 369
 370     // we need to turn '\n's into "\r\n"s for the multiline controls
 371     wxString valueWin;
 372     if ( m_windowStyle & wxTE_MULTILINE )
 373     {
 374         valueWin = wxTextFile::Translate(value, wxTextFileType_Dos);
 375     }
 376     else // single line
 377     {
 378         valueWin = value;
 379     }
 380
 381     if ( !MSWCreateControl(windowClass, msStyle, pos, size, valueWin) )
 382         return false;
 383
 384 #if wxUSE_RICHEDIT
 385     if ( IsRich() )
 386     {
 387         // enable the events we're interested in: we want to get EN_CHANGE as
 388         // for the normal controls
 389         LPARAM mask = ENM_CHANGE;
 390
 391         if ( GetRichVersion() == 1 )
 392         {
 393             // we also need EN_MSGFILTER for richedit 1.0 for the reasons
 394             // explained in its handler
 395            mask |= ENM_MOUSEEVENTS;
 396
 397            // we also need to force the appearance of the vertical scrollbar
 398            // initially as otherwise the control doesn't refresh correctly
 399            // after resize: but once the vertical scrollbar had been shown
 400            // (even if it's subsequently hidden) it does
 401            //
 402            // this is clearly a bug and for now it has been only noticed under
 403            // Windows XP, so if we're sure it works correctly under other
 404            // systems we could do this only for XP
 405            SetSize(-1, 1); // 1 is small enough to force vert scrollbar
 406            SetSize(size);
 407         }
 408         else if ( m_windowStyle & wxTE_AUTO_URL )
 409         {
 410             mask |= ENM_LINK;
 411
 412             ::SendMessage(GetHwnd(), EM_AUTOURLDETECT, TRUE, 0);
 413         }
 414
 415         ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, mask);
 416     }
 417 #endif // wxUSE_RICHEDIT
 418
 419     return true;
 420 }
 421
 422 // Make sure the window style (etc.) reflects the HWND style (roughly)
 423 void wxTextCtrl::AdoptAttributesFromHWND()
 424 {
 425     wxWindow::AdoptAttributesFromHWND();
 426
 427     HWND hWnd = GetHwnd();
 428     long style = ::GetWindowLong(hWnd, GWL_STYLE);
 429
 430     // retrieve the style to see whether this is an edit or richedit ctrl
 431 #if wxUSE_RICHEDIT
 432     wxString classname = wxGetWindowClass(GetHWND());
 433
 434     if ( classname.IsSameAs(_T("EDIT"), false /* no case */) )
 435     {
 436         m_verRichEdit = 0;
 437     }
 438     else // rich edit?
 439     {
 440         wxChar c;
 441         if ( wxSscanf(classname, _T("RichEdit%d0%c"), &m_verRichEdit, &c) != 2 )
 442         {
 443             wxLogDebug(_T("Unknown edit control '%s'."), classname.c_str());
 444
 445             m_verRichEdit = 0;
 446         }
 447     }
 448 #endif // wxUSE_RICHEDIT
 449
 450     if (style & ES_MULTILINE)
 451         m_windowStyle |= wxTE_MULTILINE;
 452     if (style & ES_PASSWORD)
 453         m_windowStyle |= wxTE_PASSWORD;
 454     if (style & ES_READONLY)
 455         m_windowStyle |= wxTE_READONLY;
 456     if (style & ES_WANTRETURN)
 457         m_windowStyle |= wxTE_PROCESS_ENTER;
 458     if (style & ES_CENTER)
 459         m_windowStyle |= wxTE_CENTRE;
 460     if (style & ES_RIGHT)
 461         m_windowStyle |= wxTE_RIGHT;
 462 }
 463
 464 WXDWORD wxTextCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
 465 {
 466     long msStyle = wxControl::MSWGetStyle(style, exstyle);
 467
 468     // styles which we alaways add by default
 469     if ( style & wxTE_MULTILINE )
 470     {
 471         wxASSERT_MSG( !(style & wxTE_PROCESS_ENTER),
 472                       wxT("wxTE_PROCESS_ENTER style is ignored for multiline text controls (they always process it)") );
 473
 474         msStyle |= ES_MULTILINE | ES_WANTRETURN;
 475         if ( !(style & wxTE_NO_VSCROLL) )
 476         {
 477             // always adjust the vertical scrollbar automatically if we have it
 478             msStyle |= WS_VSCROLL | ES_AUTOVSCROLL;
 479
 480 #if wxUSE_RICHEDIT
 481             // we have to use this style for the rich edit controls because
 482             // without it the vertical scrollbar never appears at all in
 483             // richedit 3.0 because of our ECO_NOHIDESEL hack (search for it)
 484             if ( style & wxTE_RICH2 )
 485             {
 486                 msStyle |= ES_DISABLENOSCROLL;
 487             }
 488 #endif // wxUSE_RICHEDIT
 489         }
 490
 491         style |= wxTE_PROCESS_ENTER;
 492     }
 493     else // !multiline
 494     {
 495         // there is really no reason to not have this style for single line
 496         // text controls
 497         msStyle |= ES_AUTOHSCROLL;
 498     }
 499
 500     // note that wxTE_DONTWRAP is the same as wxHSCROLL so if we have a horz
 501     // scrollbar, there is no wrapping -- which makes sense
 502     if ( style & wxTE_DONTWRAP )
 503     {
 504         // automatically scroll the control horizontally as necessary
 505         //
 506         // NB: ES_AUTOHSCROLL is needed for richedit controls or they don't
 507         //     show horz scrollbar at all, even in spite of WS_HSCROLL, and as
 508         //     it doesn't seem to do any harm for plain edit controls, add it
 509         //     always
 510         msStyle |= WS_HSCROLL | ES_AUTOHSCROLL;
 511     }
 512
 513     if ( style & wxTE_READONLY )
 514         msStyle |= ES_READONLY;
 515
 516     if ( style & wxTE_PASSWORD )
 517         msStyle |= ES_PASSWORD;
 518
 519     if ( style & wxTE_NOHIDESEL )
 520         msStyle |= ES_NOHIDESEL;
 521
 522     // note that we can't do do "& wxTE_LEFT" as wxTE_LEFT == 0
 523     if ( style & wxTE_CENTRE )
 524         msStyle |= ES_CENTER;
 525     else if ( style & wxTE_RIGHT )
 526         msStyle |= ES_RIGHT;
 527     else
 528         msStyle |= ES_LEFT; // ES_LEFT is 0 as well but for consistency...
 529
 530     return msStyle;
 531 }
 532
 533 void wxTextCtrl::SetWindowStyleFlag(long style)
 534 {
 535 #if wxUSE_RICHEDIT
 536     // we have to deal with some styles separately because they can't be
 537     // changed by simply calling SetWindowLong(GWL_STYLE) but can be changed
 538     // using richedit-specific EM_SETOPTIONS
 539     if ( IsRich() &&
 540             ((style & wxTE_NOHIDESEL) != (GetWindowStyle() & wxTE_NOHIDESEL)) )
 541     {
 542         bool set = (style & wxTE_NOHIDESEL) != 0;
 543
 544         ::SendMessage(GetHwnd(), EM_SETOPTIONS, set ? ECOOP_OR : ECOOP_AND,
 545                       set ? ECO_NOHIDESEL : ~ECO_NOHIDESEL);
 546     }
 547 #endif // wxUSE_RICHEDIT
 548
 549     wxControl::SetWindowStyleFlag(style);
 550 }
 551
 552 // ----------------------------------------------------------------------------
 553 // set/get the controls text
 554 // ----------------------------------------------------------------------------
 555
 556 wxString wxTextCtrl::GetValue() const
 557 {
 558     // range 0..-1 is special for GetRange() and means to retrieve all text
 559     return GetRange(0, -1);
 560 }
 561
 562 wxString wxTextCtrl::GetRange(long from, long to) const
 563 {
 564     wxString str;
 565
 566     if ( from >= to && to != -1 )
 567     {
 568         // nothing to retrieve
 569         return str;
 570     }
 571
 572 #if wxUSE_RICHEDIT
 573     if ( IsRich() )
 574     {
 575         int len = GetWindowTextLength(GetHwnd());
 576         if ( len > from )
 577         {
 578             if ( to == -1 )
 579                 to = len;
 580
 581 #if !wxUSE_UNICODE
 582             // we must use EM_STREAMOUT if we don't want to lose all characters
 583             // not representable in the current character set (EM_GETTEXTRANGE
 584             // simply replaces them with question marks...)
 585             if ( GetRichVersion() > 1 )
 586             {
 587                 // we must have some encoding, otherwise any 8bit chars in the
 588                 // control are simply *lost* (replaced by '?')
 589                 wxFontEncoding encoding = wxFONTENCODING_SYSTEM;
 590
 591                 wxFont font = m_defaultStyle.GetFont();
 592                 if ( !font.Ok() )
 593                     font = GetFont();
 594
 595                 if ( font.Ok() )
 596                 {
 597                    encoding = font.GetEncoding();
 598                 }
 599
 600                 if ( encoding == wxFONTENCODING_SYSTEM )
 601                 {
 602                     encoding = wxLocale::GetSystemEncoding();
 603                 }
 604
 605                 if ( encoding == wxFONTENCODING_SYSTEM )
 606                 {
 607                     encoding = wxFONTENCODING_ISO8859_1;
 608                 }
 609
 610                 str = StreamOut(encoding);
 611
 612                 if ( !str.empty() )
 613                 {
 614                     // we have to manually extract the required part, luckily
 615                     // this is easy in this case as EOL characters in str are
 616                     // just LFs because we remove CRs in wxRichEditStreamOut
 617                     str = str.Mid(from, to - from);
 618                 }
 619             }
 620
 621             // StreamOut() wasn't used or failed, try to do it in normal way
 622             if ( str.empty() )
 623 #endif // !wxUSE_UNICODE
 624             {
 625                 // alloc one extra WORD as needed by the control
 626                 wxStringBuffer tmp(str, ++len);
 627                 wxChar *p = tmp;
 628
 629                 TEXTRANGE textRange;
 630                 textRange.chrg.cpMin = from;
 631                 textRange.chrg.cpMax = to;
 632                 textRange.lpstrText = p;
 633
 634                 (void)::SendMessage(GetHwnd(), EM_GETTEXTRANGE,
 635                                     0, (LPARAM)&textRange);
 636
 637                 if ( m_verRichEdit > 1 )
 638                 {
 639                     // RichEdit 2.0 uses just CR ('\r') for the
 640                     // newlines which is neither Unix nor Windows
 641                     // style - convert it to something reasonable
 642                     for ( ; *p; p++ )
 643                     {
 644                         if ( *p == _T('\r') )
 645                             *p = _T('\n');
 646                     }
 647                 }
 648             }
 649
 650             if ( m_verRichEdit == 1 )
 651             {
 652                 // convert to the canonical form - see comment below
 653                 str = wxTextFile::Translate(str, wxTextFileType_Unix);
 654             }
 655         }
 656         //else: no text at all, leave the string empty
 657     }
 658     else
 659 #endif // wxUSE_RICHEDIT
 660     {
 661         // retrieve all text
 662         str = wxGetWindowText(GetHWND());
 663
 664         // need only a range?
 665         if ( from < to )
 666         {
 667             str = str.Mid(from, to - from);
 668         }
 669
 670         // WM_GETTEXT uses standard DOS CR+LF (\r\n) convention - convert to the
 671         // canonical one (same one as above) for consistency with the other kinds
 672         // of controls and, more importantly, with the other ports
 673         str = wxTextFile::Translate(str, wxTextFileType_Unix);
 674     }
 675
 676     return str;
 677 }
 678
 679 void wxTextCtrl::SetValue(const wxString& value)
 680 {
 681     // if the text is long enough, it's faster to just set it instead of first
 682     // comparing it with the old one (chances are that it will be different
 683     // anyhow, this comparison is there to avoid flicker for small single-line
 684     // edit controls mostly)
 685     if ( (value.length() > 0x400) || (value != GetValue()) )
 686     {
 687         DoWriteText(value, false /* not selection only */);
 688
 689         // for compatibility, don't move the cursor when doing SetValue()
 690         SetInsertionPoint(0);
 691     }
 692     else // same text
 693     {
 694         // still send an event for consistency
 695         SendUpdateEvent();
 696     }
 697
 698     // we should reset the modified flag even if the value didn't really change
 699
 700     // mark the control as being not dirty - we changed its text, not the
 701     // user
 702     DiscardEdits();
 703 }
 704
 705 #if wxUSE_RICHEDIT && (!wxUSE_UNICODE || wxUSE_UNICODE_MSLU)
 706
 707 // TODO: using memcpy() would improve performance a lot for big amounts of text
 708
 709 DWORD CALLBACK
 710 wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb)
 711 {
 712     *pcb = 0;
 713
 714     const wchar_t ** const ppws = (const wchar_t **)dwCookie;
 715
 716     wchar_t *wbuf = (wchar_t *)buf;
 717     const wchar_t *wpc = *ppws;
 718     while ( cb && *wpc )
 719     {
 720         *wbuf++ = *wpc++;
 721
 722         cb -= sizeof(wchar_t);
 723         (*pcb) += sizeof(wchar_t);
 724     }
 725
 726     *ppws = wpc;
 727
 728     return 0;
 729 }
 730
 731 // helper struct used to pass parameters from wxTextCtrl to wxRichEditStreamOut
 732 struct wxStreamOutData
 733 {
 734     wchar_t *wpc;
 735     size_t len;
 736 };
 737
 738 DWORD CALLBACK
 739 wxRichEditStreamOut(DWORD_PTR dwCookie, BYTE *buf, LONG cb, LONG *pcb)
 740 {
 741     *pcb = 0;
 742
 743     wxStreamOutData *data = (wxStreamOutData *)dwCookie;
 744
 745     const wchar_t *wbuf = (const wchar_t *)buf;
 746     wchar_t *wpc = data->wpc;
 747     while ( cb )
 748     {
 749         wchar_t wch = *wbuf++;
 750
 751         // turn "\r\n" into "\n" on the fly
 752         if ( wch != L'\r' )
 753             *wpc++ = wch;
 754         else
 755             data->len--;
 756
 757         cb -= sizeof(wchar_t);
 758         (*pcb) += sizeof(wchar_t);
 759     }
 760
 761     data->wpc = wpc;
 762
 763     return 0;
 764 }
 765
 766
 767 #if wxUSE_UNICODE_MSLU
 768     #define UNUSED_IF_MSLU(param)
 769 #else
 770     #define UNUSED_IF_MSLU(param) param
 771 #endif
 772
 773 bool
 774 wxTextCtrl::StreamIn(const wxString& value,
 775                      wxFontEncoding UNUSED_IF_MSLU(encoding),
 776                      bool selectionOnly)
 777 {
 778 #if wxUSE_UNICODE_MSLU
 779     const wchar_t *wpc = value.c_str();
 780 #else // !wxUSE_UNICODE_MSLU
 781     wxCSConv conv(encoding);
 782
 783     const size_t len = conv.MB2WC(NULL, value, value.length());
 784
 785 #if wxUSE_WCHAR_T
 786     wxWCharBuffer wchBuf(len);
 787     wchar_t *wpc = wchBuf.data();
 788 #else
 789     wchar_t *wchBuf = (wchar_t *)malloc((len + 1)*sizeof(wchar_t));
 790     wchar_t *wpc = wchBuf;
 791 #endif
 792
 793     conv.MB2WC(wpc, value, value.length());
 794 #endif // wxUSE_UNICODE_MSLU
 795
 796     // finally, stream it in the control
 797     EDITSTREAM eds;
 798     wxZeroMemory(eds);
 799     eds.dwCookie = (DWORD)&wpc;
 800     // the cast below is needed for broken (very) old mingw32 headers
 801     eds.pfnCallback = (EDITSTREAMCALLBACK)wxRichEditStreamIn;
 802
 803     // same problem as in DoWriteText(): we can get multiple events here
 804     UpdatesCountFilter ucf(m_updatesCount);
 805
 806     ::SendMessage(GetHwnd(), EM_STREAMIN,
 807                   SF_TEXT |
 808                   SF_UNICODE |
 809                   (selectionOnly ? SFF_SELECTION : 0),
 810                   (LPARAM)&eds);
 811
 812     wxASSERT_MSG( ucf.GotUpdate(), _T("EM_STREAMIN didn't send EN_UPDATE?") );
 813
 814     if ( eds.dwError )
 815     {
 816         wxLogLastError(_T("EM_STREAMIN"));
 817     }
 818
 819 #if !wxUSE_WCHAR_T
 820     free(wchBuf);
 821 #endif // !wxUSE_WCHAR_T
 822
 823     return true;
 824 }
 825
 826 #if !wxUSE_UNICODE_MSLU
 827
 828 wxString
 829 wxTextCtrl::StreamOut(wxFontEncoding encoding, bool selectionOnly) const
 830 {
 831     wxString out;
 832
 833     const int len = GetWindowTextLength(GetHwnd());
 834
 835 #if wxUSE_WCHAR_T
 836     wxWCharBuffer wchBuf(len);
 837     wchar_t *wpc = wchBuf.data();
 838 #else
 839     wchar_t *wchBuf = (wchar_t *)malloc((len + 1)*sizeof(wchar_t));
 840     wchar_t *wpc = wchBuf;
 841 #endif
 842
 843     wxStreamOutData data;
 844     data.wpc = wpc;
 845     data.len = len;
 846
 847     EDITSTREAM eds;
 848     wxZeroMemory(eds);
 849     eds.dwCookie = (DWORD)&data;
 850     eds.pfnCallback = wxRichEditStreamOut;
 851
 852     ::SendMessage
 853       (
 854         GetHwnd(),
 855         EM_STREAMOUT,
 856         SF_TEXT | SF_UNICODE | (selectionOnly ? SFF_SELECTION : 0),
 857         (LPARAM)&eds
 858       );
 859
 860     if ( eds.dwError )
 861     {
 862         wxLogLastError(_T("EM_STREAMOUT"));
 863     }
 864     else // streamed out ok
 865     {
 866         // NUL-terminate the string because its length could have been
 867         // decreased by wxRichEditStreamOut
 868         *(wchBuf.data() + data.len) = L'\0';
 869
 870         // now convert to the given encoding (this is a possibly lossful
 871         // conversion but what else can we do)
 872         wxCSConv conv(encoding);
 873         size_t lenNeeded = conv.WC2MB(NULL, wchBuf, 0);
 874         if ( lenNeeded++ )
 875         {
 876             conv.WC2MB(wxStringBuffer(out, lenNeeded), wchBuf, lenNeeded);
 877         }
 878     }
 879
 880 #if !wxUSE_WCHAR_T
 881     free(wchBuf);
 882 #endif // !wxUSE_WCHAR_T
 883
 884     return out;
 885 }
 886
 887 #endif // !wxUSE_UNICODE_MSLU
 888
 889 #endif // wxUSE_RICHEDIT
 890
 891 void wxTextCtrl::WriteText(const wxString& value)
 892 {
 893     DoWriteText(value);
 894 }
 895
 896 void wxTextCtrl::DoWriteText(const wxString& value, bool selectionOnly)
 897 {
 898     if ( value.empty() )
 899         return;
 900
 901     wxString valueDos;
 902     if ( m_windowStyle & wxTE_MULTILINE )
 903         valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);
 904     else
 905         valueDos = value;
 906
 907 #if wxUSE_RICHEDIT
 908     // there are several complications with the rich edit controls here
 909     bool done = false;
 910     if ( IsRich() )
 911     {
 912         // first, ensure that the new text will be in the default style
 913         if ( !m_defaultStyle.IsDefault() )
 914         {
 915             long start, end;
 916             GetSelection(&start, &end);
 917             SetStyle(start, end, m_defaultStyle);
 918         }
 919
 920 #if wxUSE_UNICODE_MSLU
 921         // RichEdit doesn't have Unicode version of EM_REPLACESEL on Win9x,
 922         // but EM_STREAMIN works
 923         if ( wxUsingUnicowsDll() && GetRichVersion() > 1 )
 924         {
 925            done = StreamIn(valueDos, wxFONTENCODING_SYSTEM, selectionOnly);
 926         }
 927 #endif // wxUSE_UNICODE_MSLU
 928
 929 #if !wxUSE_UNICODE
 930         // next check if the text we're inserting must be shown in a non
 931         // default charset -- this only works for RichEdit > 1.0
 932         if ( GetRichVersion() > 1 )
 933         {
 934             wxFont font = m_defaultStyle.GetFont();
 935             if ( !font.Ok() )
 936                 font = GetFont();
 937
 938             if ( font.Ok() )
 939             {
 940                wxFontEncoding encoding = font.GetEncoding();
 941                if ( encoding != wxFONTENCODING_SYSTEM )
 942                {
 943                    // we have to use EM_STREAMIN to force richedit control 2.0+
 944                    // to show any text in the non default charset -- otherwise
 945                    // it thinks it knows better than we do and always shows it
 946                    // in the default one
 947                    done = StreamIn(valueDos, encoding, selectionOnly);
 948                }
 949             }
 950         }
 951 #endif // !wxUSE_UNICODE
 952     }
 953
 954     if ( !done )
 955 #endif // wxUSE_RICHEDIT
 956     {
 957         // in some cases we get 2 EN_CHANGE notifications after the SendMessage
 958         // call (this happens for plain EDITs with EM_REPLACESEL and under some
 959         // -- undetermined -- conditions with rich edit) and sometimes we don't
 960         // get any events at all (plain EDIT with WM_SETTEXT), so ensure that
 961         // we generate exactly one of them by ignoring all but the first one in
 962         // SendUpdateEvent() and generating one ourselves if we hadn't got any
 963         // notifications from Windows
 964         UpdatesCountFilter ucf(m_updatesCount);
 965
 966         ::SendMessage(GetHwnd(), selectionOnly ? EM_REPLACESEL : WM_SETTEXT,
 967                       // EM_REPLACESEL takes 1 to indicate the operation should be redoable
 968                       selectionOnly ? 1 : 0, (LPARAM)valueDos.c_str());
 969
 970         if ( !ucf.GotUpdate() )
 971         {
 972             SendUpdateEvent();
 973         }
 974     }
 975 }
 976
 977 void wxTextCtrl::AppendText(const wxString& text)
 978 {
 979     SetInsertionPointEnd();
 980
 981     WriteText(text);
 982
 983 #if wxUSE_RICHEDIT
 984     // don't do this if we're frozen, saves some time
 985     if ( !IsFrozen() && IsMultiLine() && GetRichVersion() > 1 )
 986     {
 987         // setting the caret to the end and showing it simply doesn't work for
 988         // RichEdit 2.0 -- force it to still do what we want
 989         ::SendMessage(GetHwnd(), EM_LINESCROLL, 0, GetNumberOfLines());
 990     }
 991 #endif // wxUSE_RICHEDIT
 992 }
 993
 994 void wxTextCtrl::Clear()
 995 {
 996     ::SetWindowText(GetHwnd(), wxEmptyString);
 997
 998 #if wxUSE_RICHEDIT
 999     if ( !IsRich() )
1000 #endif // wxUSE_RICHEDIT
1001     {
1002         // rich edit controls send EN_UPDATE from WM_SETTEXT handler themselves
1003         // but the normal ones don't -- make Clear() behaviour consistent by
1004         // always sending this event
1005
1006         // Windows already sends an update event for single-line
1007         // controls.
1008         if ( m_windowStyle & wxTE_MULTILINE )
1009             SendUpdateEvent();
1010     }
1011 }
1012
1013 #ifdef __WIN32__
1014
1015 bool wxTextCtrl::EmulateKeyPress(const wxKeyEvent& event)
1016 {
1017     SetFocus();
1018
1019     size_t lenOld = GetValue().length();
1020
1021     wxUint32 code = event.GetRawKeyCode();
1022     ::keybd_event((BYTE)code, 0, 0 /* key press */, 0);
1023     ::keybd_event((BYTE)code, 0, KEYEVENTF_KEYUP, 0);
1024
1025     // assume that any alphanumeric key changes the total number of characters
1026     // in the control - this should work in 99% of cases
1027     return GetValue().length() != lenOld;
1028 }
1029
1030 #endif // __WIN32__
1031
1032 // ----------------------------------------------------------------------------
1033 // Clipboard operations
1034 // ----------------------------------------------------------------------------
1035
1036 void wxTextCtrl::Copy()
1037 {
1038     if (CanCopy())
1039     {
1040         ::SendMessage(GetHwnd(), WM_COPY, 0, 0L);
1041     }
1042 }
1043
1044 void wxTextCtrl::Cut()
1045 {
1046     if (CanCut())
1047     {
1048         ::SendMessage(GetHwnd(), WM_CUT, 0, 0L);
1049     }
1050 }
1051
1052 void wxTextCtrl::Paste()
1053 {
1054     if (CanPaste())
1055     {
1056         ::SendMessage(GetHwnd(), WM_PASTE, 0, 0L);
1057     }
1058 }
1059
1060 bool wxTextCtrl::HasSelection() const
1061 {
1062     long from, to;
1063     GetSelection(&from, &to);
1064     return from != to;
1065 }
1066
1067 bool wxTextCtrl::CanCopy() const
1068 {
1069     // Can copy if there's a selection
1070     return HasSelection();
1071 }
1072
1073 bool wxTextCtrl::CanCut() const
1074 {
1075     return CanCopy() && IsEditable();
1076 }
1077
1078 bool wxTextCtrl::CanPaste() const
1079 {
1080     if ( !IsEditable() )
1081         return false;
1082
1083 #if wxUSE_RICHEDIT
1084     if ( IsRich() )
1085     {
1086         UINT cf = 0; // 0 == any format
1087
1088         return ::SendMessage(GetHwnd(), EM_CANPASTE, cf, 0) != 0;
1089     }
1090 #endif // wxUSE_RICHEDIT
1091
1092     // Standard edit control: check for straight text on clipboard
1093     if ( !::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) )
1094         return false;
1095
1096     bool isTextAvailable = ::IsClipboardFormatAvailable(CF_TEXT) != 0;
1097     ::CloseClipboard();
1098
1099     return isTextAvailable;
1100 }
1101
1102 // ----------------------------------------------------------------------------
1103 // Accessors
1104 // ----------------------------------------------------------------------------
1105
1106 void wxTextCtrl::SetEditable(bool editable)
1107 {
1108     HWND hWnd = GetHwnd();
1109     ::SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);
1110 }
1111
1112 void wxTextCtrl::SetInsertionPoint(long pos)
1113 {
1114     DoSetSelection(pos, pos);
1115 }
1116
1117 void wxTextCtrl::SetInsertionPointEnd()
1118 {
1119     // we must not do anything if the caret is already there because calling
1120     // SetInsertionPoint() thaws the controls if Freeze() had been called even
1121     // if it doesn't actually move the caret anywhere and so the simple fact of
1122     // doing it results in horrible flicker when appending big amounts of text
1123     // to the control in a few chunks (see DoAddText() test in the text sample)
1124     if ( GetInsertionPoint() == GetLastPosition() )
1125     {
1126         return;
1127     }
1128
1129     long pos;
1130
1131 #if wxUSE_RICHEDIT
1132     if ( m_verRichEdit == 1 )
1133     {
1134         // we don't have to waste time calling GetLastPosition() in this case
1135         pos = -1;
1136     }
1137     else // !RichEdit 1.0
1138 #endif // wxUSE_RICHEDIT
1139     {
1140         pos = GetLastPosition();
1141     }
1142
1143     SetInsertionPoint(pos);
1144 }
1145
1146 long wxTextCtrl::GetInsertionPoint() const
1147 {
1148 #if wxUSE_RICHEDIT
1149     if ( IsRich() )
1150     {
1151         CHARRANGE range;
1152         range.cpMin = 0;
1153         range.cpMax = 0;
1154         ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range);
1155         return range.cpMin;
1156     }
1157 #endif // wxUSE_RICHEDIT
1158
1159     DWORD Pos = (DWORD)::SendMessage(GetHwnd(), EM_GETSEL, 0, 0L);
1160     return Pos & 0xFFFF;
1161 }
1162
1163 wxTextPos wxTextCtrl::GetLastPosition() const
1164 {
1165     int numLines = GetNumberOfLines();
1166     long posStartLastLine = XYToPosition(0, numLines - 1);
1167
1168     long lenLastLine = GetLengthOfLineContainingPos(posStartLastLine);
1169
1170     return posStartLastLine + lenLastLine;
1171 }
1172
1173 // If the return values from and to are the same, there is no
1174 // selection.
1175 void wxTextCtrl::GetSelection(long* from, long* to) const
1176 {
1177 #if wxUSE_RICHEDIT
1178     if ( IsRich() )
1179     {
1180         CHARRANGE charRange;
1181         ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &charRange);
1182
1183         *from = charRange.cpMin;
1184         *to = charRange.cpMax;
1185     }
1186     else
1187 #endif // !wxUSE_RICHEDIT
1188     {
1189         DWORD dwStart, dwEnd;
1190         ::SendMessage(GetHwnd(), EM_GETSEL, (WPARAM)&dwStart, (LPARAM)&dwEnd);
1191
1192         *from = dwStart;
1193         *to = dwEnd;
1194     }
1195 }
1196
1197 bool wxTextCtrl::IsEditable() const
1198 {
1199     // strangely enough, we may be called before the control is created: our
1200     // own Create() calls MSWGetStyle() which calls AcceptsFocus() which calls
1201     // us
1202     if ( !m_hWnd )
1203         return true;
1204
1205     long style = ::GetWindowLong(GetHwnd(), GWL_STYLE);
1206
1207     return (style & ES_READONLY) == 0;
1208 }
1209
1210 // ----------------------------------------------------------------------------
1211 // selection
1212 // ----------------------------------------------------------------------------
1213
1214 void wxTextCtrl::SetSelection(long from, long to)
1215 {
1216     // if from and to are both -1, it means (in wxWidgets) that all text should
1217     // be selected - translate into Windows convention
1218     if ( (from == -1) && (to == -1) )
1219     {
1220         from = 0;
1221         to = -1;
1222     }
1223
1224     DoSetSelection(from, to);
1225 }
1226
1227 void wxTextCtrl::DoSetSelection(long from, long to, bool scrollCaret)
1228 {
1229     HWND hWnd = GetHwnd();
1230
1231 #if wxUSE_RICHEDIT
1232     if ( IsRich() )
1233     {
1234         CHARRANGE range;
1235         range.cpMin = from;
1236         range.cpMax = to;
1237         ::SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM) &range);
1238     }
1239     else
1240 #endif // wxUSE_RICHEDIT
1241     {
1242         ::SendMessage(hWnd, EM_SETSEL, (WPARAM)from, (LPARAM)to);
1243     }
1244
1245     if ( scrollCaret && !IsFrozen() )
1246     {
1247 #if wxUSE_RICHEDIT
1248         // richedit 3.0 (i.e. the version living in riched20.dll distributed
1249         // with Windows 2000 and beyond) doesn't honour EM_SCROLLCARET when
1250         // emulating richedit 2.0 unless the control has focus or ECO_NOHIDESEL
1251         // option is set (but it does work ok in richedit 1.0 mode...)
1252         //
1253         // so to make it work we either need to give focus to it here which
1254         // will probably create many problems (dummy focus events; window
1255         // containing the text control being brought to foreground
1256         // unexpectedly; ...) or to temporarily set ECO_NOHIDESEL which may
1257         // create other problems too -- and in fact it does because if we turn
1258         // on/off this style while appending the text to the control, the
1259         // vertical scrollbar never appears in it even if we append tons of
1260         // text and to work around this the only solution I found was to use
1261         // ES_DISABLENOSCROLL
1262         //
1263         // this is very ugly but I don't see any other way to make this work
1264         if ( GetRichVersion() > 1 )
1265         {
1266             if ( !HasFlag(wxTE_NOHIDESEL) )
1267             {
1268                 ::SendMessage(GetHwnd(), EM_SETOPTIONS,
1269                               ECOOP_OR, ECO_NOHIDESEL);
1270             }
1271             //else: everything is already ok
1272         }
1273 #endif // wxUSE_RICHEDIT
1274
1275         ::SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
1276
1277 #if wxUSE_RICHEDIT
1278         // restore ECO_NOHIDESEL if we changed it
1279         if ( GetRichVersion() > 1 && !HasFlag(wxTE_NOHIDESEL) )
1280         {
1281             ::SendMessage(GetHwnd(), EM_SETOPTIONS,
1282                           ECOOP_AND, ~ECO_NOHIDESEL);
1283         }
1284 #endif // wxUSE_RICHEDIT
1285     }
1286 }
1287
1288 // ----------------------------------------------------------------------------
1289 // Working with files
1290 // ----------------------------------------------------------------------------
1291
1292 bool wxTextCtrl::LoadFile(const wxString& file)
1293 {
1294     if ( wxTextCtrlBase::LoadFile(file) )
1295     {
1296         // update the size limit if needed
1297         AdjustSpaceLimit();
1298
1299         return true;
1300     }
1301
1302     return false;
1303 }
1304
1305 // ----------------------------------------------------------------------------
1306 // Editing
1307 // ----------------------------------------------------------------------------
1308
1309 void wxTextCtrl::Replace(long from, long to, const wxString& value)
1310 {
1311     // Set selection and remove it
1312     DoSetSelection(from, to, false /* don't scroll caret into view */);
1313
1314     DoWriteText(value, true /* selection only */);
1315 }
1316
1317 void wxTextCtrl::Remove(long from, long to)
1318 {
1319     Replace(from, to, wxEmptyString);
1320 }
1321
1322 bool wxTextCtrl::IsModified() const
1323 {
1324     return ::SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0;
1325 }
1326
1327 void wxTextCtrl::MarkDirty()
1328 {
1329     ::SendMessage(GetHwnd(), EM_SETMODIFY, TRUE, 0L);
1330 }
1331
1332 void wxTextCtrl::DiscardEdits()
1333 {
1334     ::SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L);
1335 }
1336
1337 int wxTextCtrl::GetNumberOfLines() const
1338 {
1339     return (int)::SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0);
1340 }
1341
1342 // ----------------------------------------------------------------------------
1343 // Positions <-> coords
1344 // ----------------------------------------------------------------------------
1345
1346 long wxTextCtrl::XYToPosition(long x, long y) const
1347 {
1348     // This gets the char index for the _beginning_ of this line
1349     long charIndex = ::SendMessage(GetHwnd(), EM_LINEINDEX, (WPARAM)y, (LPARAM)0);
1350
1351     return charIndex + x;
1352 }
1353
1354 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
1355 {
1356     HWND hWnd = GetHwnd();
1357
1358     // This gets the line number containing the character
1359     long lineNo;
1360 #if wxUSE_RICHEDIT
1361     if ( IsRich() )
1362     {
1363         lineNo = ::SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos);
1364     }
1365     else
1366 #endif // wxUSE_RICHEDIT
1367     {
1368         lineNo = ::SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0);
1369     }
1370
1371     if ( lineNo == -1 )
1372     {
1373         // no such line
1374         return false;
1375     }
1376
1377     // This gets the char index for the _beginning_ of this line
1378     long charIndex = ::SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0);
1379     if ( charIndex == -1 )
1380     {
1381         return false;
1382     }
1383
1384     // The X position must therefore be the different between pos and charIndex
1385     if ( x )
1386         *x = pos - charIndex;
1387     if ( y )
1388         *y = lineNo;
1389
1390     return true;
1391 }
1392
1393 wxTextCtrlHitTestResult
1394 wxTextCtrl::HitTest(const wxPoint& pt, long *posOut) const
1395 {
1396     // first get the position from Windows
1397     LPARAM lParam;
1398
1399 #if wxUSE_RICHEDIT
1400     POINTL ptl;
1401     if ( IsRich() )
1402     {
1403         // for rich edit controls the position is passed iva the struct fields
1404         ptl.x = pt.x;
1405         ptl.y = pt.y;
1406         lParam = (LPARAM)&ptl;
1407     }
1408     else
1409 #endif // wxUSE_RICHEDIT
1410     {
1411         // for the plain ones, we are limited to 16 bit positions which are
1412         // combined in a single 32 bit value
1413         lParam = MAKELPARAM(pt.x, pt.y);
1414     }
1415
1416     LRESULT pos = ::SendMessage(GetHwnd(), EM_CHARFROMPOS, 0, lParam);
1417
1418     if ( pos == -1 )
1419     {
1420         // this seems to indicate an error...
1421         return wxTE_HT_UNKNOWN;
1422     }
1423
1424 #if wxUSE_RICHEDIT
1425     if ( !IsRich() )
1426 #endif // wxUSE_RICHEDIT
1427     {
1428         // for plain EDIT controls the higher word contains something else
1429         pos = LOWORD(pos);
1430     }
1431
1432
1433     // next determine where it is relatively to our point: EM_CHARFROMPOS
1434     // always returns the closest character but we need to be more precise, so
1435     // double check that we really are where it pretends
1436     POINTL ptReal;
1437
1438 #if wxUSE_RICHEDIT
1439     // FIXME: we need to distinguish between richedit 2 and 3 here somehow but
1440     //        we don't know how to do it
1441     if ( IsRich() )
1442     {
1443         ::SendMessage(GetHwnd(), EM_POSFROMCHAR, (WPARAM)&ptReal, pos);
1444     }
1445     else
1446 #endif // wxUSE_RICHEDIT
1447     {
1448         LRESULT lRc = ::SendMessage(GetHwnd(), EM_POSFROMCHAR, pos, 0);
1449
1450         if ( lRc == -1 )
1451         {
1452             // this is apparently returned when pos corresponds to the last
1453             // position
1454             ptReal.x =
1455             ptReal.y = 0;
1456         }
1457         else
1458         {
1459             ptReal.x = LOWORD(lRc);
1460             ptReal.y = HIWORD(lRc);
1461         }
1462     }
1463
1464     wxTextCtrlHitTestResult rc;
1465
1466     if ( pt.y > ptReal.y + GetCharHeight() )
1467         rc = wxTE_HT_BELOW;
1468     else if ( pt.x > ptReal.x + GetCharWidth() )
1469         rc = wxTE_HT_BEYOND;
1470     else
1471         rc = wxTE_HT_ON_TEXT;
1472
1473     if ( posOut )
1474         *posOut = pos;
1475
1476     return rc;
1477 }
1478
1479 // ----------------------------------------------------------------------------
1480 //
1481 // ----------------------------------------------------------------------------
1482
1483 void wxTextCtrl::ShowPosition(long pos)
1484 {
1485     HWND hWnd = GetHwnd();
1486
1487     // To scroll to a position, we pass the number of lines and characters
1488     // to scroll *by*. This means that we need to:
1489     // (1) Find the line position of the current line.
1490     // (2) Find the line position of pos.
1491     // (3) Scroll by (pos - current).
1492     // For now, ignore the horizontal scrolling.
1493
1494     // Is this where scrolling is relative to - the line containing the caret?
1495     // Or is the first visible line??? Try first visible line.
1496 //    int currentLineLineNo1 = (int)::SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)-1, (LPARAM)0L);
1497
1498     int currentLineLineNo = (int)::SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (LPARAM)0L);
1499
1500     int specifiedLineLineNo = (int)::SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0L);
1501
1502     int linesToScroll = specifiedLineLineNo - currentLineLineNo;
1503
1504     if (linesToScroll != 0)
1505       (void)::SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll);
1506 }
1507
1508 long wxTextCtrl::GetLengthOfLineContainingPos(long pos) const
1509 {
1510     return ::SendMessage(GetHwnd(), EM_LINELENGTH, (WPARAM)pos, 0);
1511 }
1512
1513 int wxTextCtrl::GetLineLength(long lineNo) const
1514 {
1515     long pos = XYToPosition(0, lineNo);
1516
1517     return GetLengthOfLineContainingPos(pos);
1518 }
1519
1520 wxString wxTextCtrl::GetLineText(long lineNo) const
1521 {
1522     size_t len = (size_t)GetLineLength(lineNo) + 1;
1523
1524     // there must be at least enough place for the length WORD in the
1525     // buffer
1526     len += sizeof(WORD);
1527
1528     wxString str;
1529     {
1530         wxStringBufferLength tmp(str, len);
1531         wxChar *buf = tmp;
1532
1533         *(WORD *)buf = (WORD)len;
1534         len = (size_t)::SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf);
1535
1536 #if wxUSE_RICHEDIT
1537         if ( IsRich() )
1538         {
1539             // remove the '\r' returned by the rich edit control, the user code
1540             // should never see it
1541             if ( buf[len - 2] == _T('\r') && buf[len - 1] == _T('\n') )
1542             {
1543                 buf[len - 2] = _T('\n');
1544                 len--;
1545             }
1546         }
1547 #endif // wxUSE_RICHEDIT
1548
1549         // remove the '\n' at the end, if any (this is how this function is
1550         // supposed to work according to the docs)
1551         if ( buf[len - 1] == _T('\n') )
1552         {
1553             len--;
1554         }
1555
1556         buf[len] = 0;
1557         tmp.SetLength(len);
1558     }
1559
1560     return str;
1561 }
1562
1563 void wxTextCtrl::SetMaxLength(unsigned long len)
1564 {
1565 #if wxUSE_RICHEDIT
1566     if ( IsRich() )
1567     {
1568         ::SendMessage(GetHwnd(), EM_EXLIMITTEXT, 0, len ? len : 0x7fffffff);
1569     }
1570     else
1571 #endif // wxUSE_RICHEDIT
1572     {
1573         if ( len >= 0xffff )
1574         {
1575             // this will set it to a platform-dependent maximum (much more
1576             // than 64Kb under NT)
1577             len = 0;
1578         }
1579
1580         ::SendMessage(GetHwnd(), EM_LIMITTEXT, len, 0);
1581     }
1582 }
1583
1584 // ----------------------------------------------------------------------------
1585 // Undo/redo
1586 // ----------------------------------------------------------------------------
1587
1588 void wxTextCtrl::Undo()
1589 {
1590     if (CanUndo())
1591     {
1592         ::SendMessage(GetHwnd(), EM_UNDO, 0, 0);
1593     }
1594 }
1595
1596 void wxTextCtrl::Redo()
1597 {
1598     if (CanRedo())
1599     {
1600 #if wxUSE_RICHEDIT
1601         if (GetRichVersion() > 1)
1602             ::SendMessage(GetHwnd(), EM_REDO, 0, 0);
1603         else
1604 #endif
1605         // Same as Undo, since Undo undoes the undo, i.e. a redo.
1606         ::SendMessage(GetHwnd(), EM_UNDO, 0, 0);
1607     }
1608 }
1609
1610 bool wxTextCtrl::CanUndo() const
1611 {
1612     return ::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0;
1613 }
1614
1615 bool wxTextCtrl::CanRedo() const
1616 {
1617 #if wxUSE_RICHEDIT
1618     if (GetRichVersion() > 1)
1619         return ::SendMessage(GetHwnd(), EM_CANREDO, 0, 0) != 0;
1620     else
1621 #endif
1622     return ::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0;
1623 }
1624
1625 // ----------------------------------------------------------------------------
1626 // caret handling (Windows only)
1627 // ----------------------------------------------------------------------------
1628
1629 bool wxTextCtrl::ShowNativeCaret(bool show)
1630 {
1631     if ( show != m_isNativeCaretShown )
1632     {
1633         if ( !(show ? ::ShowCaret(GetHwnd()) : ::HideCaret(GetHwnd())) )
1634         {
1635             // not an error, may simply indicate that it's not shown/hidden
1636             // yet (i.e. it had been hidden/showh 2 times before)
1637             return false;
1638         }
1639
1640         m_isNativeCaretShown = show;
1641     }
1642
1643     return true;
1644 }
1645
1646 // ----------------------------------------------------------------------------
1647 // implemenation details
1648 // ----------------------------------------------------------------------------
1649
1650 void wxTextCtrl::Command(wxCommandEvent & event)
1651 {
1652     SetValue(event.GetString());
1653     ProcessCommand (event);
1654 }
1655
1656 void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event)
1657 {
1658     // By default, load the first file into the text window.
1659     if (event.GetNumberOfFiles() > 0)
1660     {
1661         LoadFile(event.GetFiles()[0]);
1662     }
1663 }
1664
1665 // ----------------------------------------------------------------------------
1666 // kbd input processing
1667 // ----------------------------------------------------------------------------
1668
1669 bool wxTextCtrl::MSWShouldPreProcessMessage(WXMSG* pMsg)
1670 {
1671     MSG *msg = (MSG *)pMsg;
1672
1673     // check for our special keys here: if we don't do it and the parent frame
1674     // uses them as accelerators, they wouldn't work at all, so we disable
1675     // usual preprocessing for them
1676     if ( msg->message == WM_KEYDOWN )
1677     {
1678         WORD vkey = (WORD) msg->wParam;
1679         if ( (HIWORD(msg->lParam) & KF_ALTDOWN) == KF_ALTDOWN )
1680         {
1681             if ( vkey == VK_BACK )
1682                 return false;
1683         }
1684         else // no Alt
1685         {
1686             // we want to process some Ctrl-foo and Shift-bar but no key
1687             // combinations without either Ctrl or Shift nor with both of them
1688             // pressed
1689             const int ctrl = wxIsCtrlDown(),
1690                       shift = wxIsShiftDown();
1691             switch ( ctrl + shift )
1692             {
1693                 default:
1694                     wxFAIL_MSG( _T("how many modifiers have we got?") );
1695                     // fall through
1696
1697                 case 0:
1698                 case 2:
1699                     break;
1700
1701                 case 1:
1702                     // either Ctrl or Shift pressed
1703                     if ( ctrl )
1704                     {
1705                         switch ( vkey )
1706                         {
1707                             case 'C':
1708                             case 'V':
1709                             case 'X':
1710                             case VK_INSERT:
1711                             case VK_DELETE:
1712                             case VK_HOME:
1713                             case VK_END:
1714                                 return false;
1715                         }
1716                     }
1717                     else // Shift is pressed
1718                     {
1719                         if ( vkey == VK_INSERT || vkey == VK_DELETE )
1720                             return false;
1721                     }
1722             }
1723         }
1724     }
1725
1726     return wxControl::MSWShouldPreProcessMessage(pMsg);
1727 }
1728
1729 void wxTextCtrl::OnChar(wxKeyEvent& event)
1730 {
1731     switch ( event.GetKeyCode() )
1732     {
1733         case WXK_RETURN:
1734             if ( !HasFlag(wxTE_MULTILINE) )
1735             {
1736                 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1737                 InitCommandEvent(event);
1738                 event.SetString(GetValue());
1739                 if ( GetEventHandler()->ProcessEvent(event) )
1740                     return;
1741             }
1742             //else: multiline controls need Enter for themselves
1743
1744             break;
1745
1746         case WXK_TAB:
1747             // ok, so this is getting absolutely ridiculous but I don't see
1748             // any other way to fix this bug: when a multiline text control is
1749             // inside a wxFrame, we need to generate the navigation event as
1750             // otherwise nothing happens at all, but when the same control is
1751             // created inside a dialog, IsDialogMessage() *does* switch focus
1752             // all by itself and so if we do it here as well, it is advanced
1753             // twice and goes to the next control... to prevent this from
1754             // happening we're doing this ugly check, the logic being that if
1755             // we don't have focus then it had been already changed to the next
1756             // control
1757             //
1758             // the right thing to do would, of course, be to understand what
1759             // the hell is IsDialogMessage() doing but this is beyond my feeble
1760             // forces at the moment unfortunately
1761             if ( !(m_windowStyle & wxTE_PROCESS_TAB))
1762             {
1763                 if ( FindFocus() == this )
1764                 {
1765                     int flags = 0;
1766                     if (!event.ShiftDown())
1767                         flags |= wxNavigationKeyEvent::IsForward ;
1768                     if (event.ControlDown())
1769                         flags |= wxNavigationKeyEvent::WinChange ;
1770                     if (Navigate(flags))
1771                         return;
1772                 }
1773             }
1774             else
1775             {
1776                 // Insert tab since calling the default Windows handler
1777                 // doesn't seem to do it
1778                 WriteText(wxT("\t"));
1779                 return;
1780             }
1781             break;
1782     }
1783
1784     // no, we didn't process it
1785     event.Skip();
1786 }
1787
1788 WXLRESULT wxTextCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
1789 {
1790     WXLRESULT lRc = wxTextCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
1791
1792     if ( nMsg == WM_GETDLGCODE )
1793     {
1794         // we always want the chars and the arrows: the arrows for navigation
1795         // and the chars because we want Ctrl-C to work even in a read only
1796         // control
1797         long lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS;
1798
1799         if ( IsEditable() )
1800         {
1801             // we may have several different cases:
1802             // 1. normal case: both TAB and ENTER are used for dlg navigation
1803             // 2. ctrl which wants TAB for itself: ENTER is used to pass to the
1804             //    next control in the dialog
1805             // 3. ctrl which wants ENTER for itself: TAB is used for dialog
1806             //    navigation
1807             // 4. ctrl which wants both TAB and ENTER: Ctrl-ENTER is used to go
1808             //    to the next control
1809
1810             // the multiline edit control should always get <Return> for itself
1811             if ( HasFlag(wxTE_PROCESS_ENTER) || HasFlag(wxTE_MULTILINE) )
1812                 lDlgCode |= DLGC_WANTMESSAGE;
1813
1814             if ( HasFlag(wxTE_PROCESS_TAB) )
1815                 lDlgCode |= DLGC_WANTTAB;
1816
1817             lRc |= lDlgCode;
1818         }
1819         else // !editable
1820         {
1821             // NB: use "=", not "|=" as the base class version returns the
1822             //     same flags is this state as usual (i.e. including
1823             //     DLGC_WANTMESSAGE). This is strange (how does it work in the
1824             //     native Win32 apps?) but for now live with it.
1825             lRc = lDlgCode;
1826         }
1827     }
1828
1829     return lRc;
1830 }
1831
1832 // ----------------------------------------------------------------------------
1833 // text control event processing
1834 // ----------------------------------------------------------------------------
1835
1836 bool wxTextCtrl::SendUpdateEvent()
1837 {
1838     switch ( m_updatesCount )
1839     {
1840         case 0:
1841             // remember that we've got an update
1842             m_updatesCount++;
1843             break;
1844
1845         case 1:
1846             // we had already sent one event since the last control modification
1847             return false;
1848
1849         default:
1850             wxFAIL_MSG( _T("unexpected wxTextCtrl::m_updatesCount value") );
1851             // fall through
1852
1853         case -1:
1854             // we hadn't updated the control ourselves, this event comes from
1855             // the user, don't need to ignore it nor update the count
1856             break;
1857     }
1858
1859     wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
1860     InitCommandEvent(event);
1861
1862     return ProcessCommand(event);
1863 }
1864
1865 bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
1866 {
1867     switch ( param )
1868     {
1869         case EN_SETFOCUS:
1870         case EN_KILLFOCUS:
1871             {
1872                 wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
1873                                                          : wxEVT_SET_FOCUS,
1874                                    m_windowId);
1875                 event.SetEventObject(this);
1876                 GetEventHandler()->ProcessEvent(event);
1877             }
1878             break;
1879
1880         case EN_CHANGE:
1881             SendUpdateEvent();
1882             break;
1883
1884         case EN_MAXTEXT:
1885             // the text size limit has been hit -- try to increase it
1886             if ( !AdjustSpaceLimit() )
1887             {
1888                 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, m_windowId);
1889                 InitCommandEvent(event);
1890                 event.SetString(GetValue());
1891                 ProcessCommand(event);
1892             }
1893             break;
1894
1895             // the other edit notification messages are not processed
1896         default:
1897             return false;
1898     }
1899
1900     // processed
1901     return true;
1902 }
1903
1904 WXHBRUSH wxTextCtrl::MSWControlColor(WXHDC hDC, WXHWND hWnd)
1905 {
1906     if ( !IsEnabled() && !HasFlag(wxTE_MULTILINE) )
1907         return MSWControlColorDisabled(hDC);
1908
1909     return wxTextCtrlBase::MSWControlColor(hDC, hWnd);
1910 }
1911
1912 bool wxTextCtrl::HasSpaceLimit(unsigned int *len) const
1913 {
1914     // HACK: we try to automatically extend the limit for the amount of text
1915     //       to allow (interactively) entering more than 64Kb of text under
1916     //       Win9x but we shouldn't reset the text limit which was previously
1917     //       set explicitly with SetMaxLength()
1918     //
1919     //       Unfortunately there is no EM_GETLIMITTEXTSETBYUSER and so we don't
1920     //       know the limit we set (if any). We could solve this by storing the
1921     //       limit we set in wxTextCtrl but to save space we prefer to simply
1922     //       test here the actual limit value: we consider that SetMaxLength()
1923     //       can only be called for small values while EN_MAXTEXT is only sent
1924     //       for large values (in practice the default limit seems to be 30000
1925     //       but make it smaller just to be on the safe side)
1926     *len = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0);
1927     return *len < 10001;
1928
1929 }
1930
1931 bool wxTextCtrl::AdjustSpaceLimit()
1932 {
1933     unsigned int limit;
1934     if ( HasSpaceLimit(&limit) )
1935         return false;
1936
1937     unsigned int len = ::GetWindowTextLength(GetHwnd());
1938     if ( len >= limit )
1939     {
1940         // increment in 32Kb chunks
1941         SetMaxLength(len + 0x8000);
1942     }
1943
1944     // we changed the limit
1945     return true;
1946 }
1947
1948 bool wxTextCtrl::AcceptsFocus() const
1949 {
1950     // we don't want focus if we can't be edited unless we're a multiline
1951     // control because then it might be still nice to get focus from keyboard
1952     // to be able to scroll it without mouse
1953     return (IsEditable() || IsMultiLine()) && wxControl::AcceptsFocus();
1954 }
1955
1956 wxSize wxTextCtrl::DoGetBestSize() const
1957 {
1958     int cx, cy;
1959     wxGetCharSize(GetHWND(), &cx, &cy, GetFont());
1960
1961     int wText = DEFAULT_ITEM_WIDTH;
1962
1963     int hText = cy;
1964     if ( m_windowStyle & wxTE_MULTILINE )
1965     {
1966         hText *= wxMax(wxMin(GetNumberOfLines(), 10), 2);
1967     }
1968     //else: for single line control everything is ok
1969
1970     // we have to add the adjustments for the control height only once, not
1971     // once per line, so do it after multiplication above
1972     hText += EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy) - cy;
1973
1974     return wxSize(wText, hText);
1975 }
1976
1977 // ----------------------------------------------------------------------------
1978 // standard handlers for standard edit menu events
1979 // ----------------------------------------------------------------------------
1980
1981 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1982 {
1983     Cut();
1984 }
1985
1986 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1987 {
1988     Copy();
1989 }
1990
1991 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1992 {
1993     Paste();
1994 }
1995
1996 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1997 {
1998     Undo();
1999 }
2000
2001 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
2002 {
2003     Redo();
2004 }
2005
2006 void wxTextCtrl::OnDelete(wxCommandEvent& WXUNUSED(event))
2007 {
2008     long from, to;
2009     GetSelection(& from, & to);
2010     if (from != -1 && to != -1)
2011         Remove(from, to);
2012 }
2013
2014 void wxTextCtrl::OnSelectAll(wxCommandEvent& WXUNUSED(event))
2015 {
2016     SetSelection(-1, -1);
2017 }
2018
2019 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
2020 {
2021     event.Enable( CanCut() );
2022 }
2023
2024 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
2025 {
2026     event.Enable( CanCopy() );
2027 }
2028
2029 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
2030 {
2031     event.Enable( CanPaste() );
2032 }
2033
2034 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
2035 {
2036     event.Enable( CanUndo() );
2037 }
2038
2039 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
2040 {
2041     event.Enable( CanRedo() );
2042 }
2043
2044 void wxTextCtrl::OnUpdateDelete(wxUpdateUIEvent& event)
2045 {
2046     long from, to;
2047     GetSelection(& from, & to);
2048     event.Enable(from != -1 && to != -1 && from != to && IsEditable()) ;
2049 }
2050
2051 void wxTextCtrl::OnUpdateSelectAll(wxUpdateUIEvent& event)
2052 {
2053     event.Enable(GetLastPosition() > 0);
2054 }
2055
2056 void wxTextCtrl::OnContextMenu(wxContextMenuEvent& event)
2057 {
2058 #if wxUSE_RICHEDIT
2059     if (IsRich())
2060     {
2061         if (!m_privateContextMenu)
2062         {
2063             m_privateContextMenu = new wxMenu;
2064             m_privateContextMenu->Append(wxID_UNDO, _("&Undo"));
2065             m_privateContextMenu->Append(wxID_REDO, _("&Redo"));
2066             m_privateContextMenu->AppendSeparator();
2067             m_privateContextMenu->Append(wxID_CUT, _("Cu&t"));
2068             m_privateContextMenu->Append(wxID_COPY, _("&Copy"));
2069             m_privateContextMenu->Append(wxID_PASTE, _("&Paste"));
2070             m_privateContextMenu->Append(wxID_CLEAR, _("&Delete"));
2071             m_privateContextMenu->AppendSeparator();
2072             m_privateContextMenu->Append(wxID_SELECTALL, _("Select &All"));
2073         }
2074         PopupMenu(m_privateContextMenu);
2075         return;
2076     }
2077     else
2078 #endif
2079     event.Skip();
2080 }
2081
2082 void wxTextCtrl::OnSetFocus(wxFocusEvent& WXUNUSED(event))
2083 {
2084     // be sure the caret remains invisible if the user had hidden it
2085     if ( !m_isNativeCaretShown )
2086     {
2087         ::HideCaret(GetHwnd());
2088     }
2089 }
2090
2091 // ----------------------------------------------------------------------------
2092 // Default colors for MSW text control
2093 //
2094 // Set default background color to the native white instead of
2095 // the default wxSYS_COLOUR_BTNFACE (is triggered with wxNullColour).
2096 // ----------------------------------------------------------------------------
2097
2098 wxVisualAttributes wxTextCtrl::GetDefaultAttributes() const
2099 {
2100     wxVisualAttributes attrs;
2101     attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
2102     attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
2103     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW); //white
2104
2105     return attrs;
2106 }
2107
2108 // the rest of the file only deals with the rich edit controls
2109 #if wxUSE_RICHEDIT
2110
2111 // ----------------------------------------------------------------------------
2112 // EN_LINK processing
2113 // ----------------------------------------------------------------------------
2114
2115 bool wxTextCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
2116 {
2117     NMHDR *hdr = (NMHDR* )lParam;
2118     switch ( hdr->code )
2119     {
2120        case EN_MSGFILTER:
2121             {
2122                 const MSGFILTER *msgf = (MSGFILTER *)lParam;
2123                 UINT msg = msgf->msg;
2124
2125                 // this is a bit crazy but richedit 1.0 sends us all mouse
2126                 // events _except_ WM_LBUTTONUP (don't ask me why) so we have
2127                 // generate the wxWin events for this message manually
2128                 //
2129                 // NB: in fact, this is still not totally correct as it does
2130                 //     send us WM_LBUTTONUP if the selection was cleared by the
2131                 //     last click -- so currently we get 2 events in this case,
2132                 //     but as I don't see any obvious way to check for this I
2133                 //     leave this code in place because it's still better than
2134                 //     not getting left up events at all
2135                 if ( msg == WM_LBUTTONUP )
2136                 {
2137                     WXUINT flags = msgf->wParam;
2138                     int x = GET_X_LPARAM(msgf->lParam),
2139                         y = GET_Y_LPARAM(msgf->lParam);
2140
2141                     HandleMouseEvent(msg, x, y, flags);
2142                 }
2143             }
2144
2145             // return true to process the event (and false to ignore it)
2146             return true;
2147
2148         case EN_LINK:
2149             {
2150                 const ENLINK *enlink = (ENLINK *)hdr;
2151
2152                 switch ( enlink->msg )
2153                 {
2154                     case WM_SETCURSOR:
2155                         // ok, so it is hardcoded - do we really nee to
2156                         // customize it?
2157                         {
2158                             wxCursor cur(wxCURSOR_HAND);
2159                             ::SetCursor(GetHcursorOf(cur));
2160                             *result = TRUE;
2161                             break;
2162                         }
2163
2164                     case WM_MOUSEMOVE:
2165                     case WM_LBUTTONDOWN:
2166                     case WM_LBUTTONUP:
2167                     case WM_LBUTTONDBLCLK:
2168                     case WM_RBUTTONDOWN:
2169                     case WM_RBUTTONUP:
2170                     case WM_RBUTTONDBLCLK:
2171                         // send a mouse event
2172                         {
2173                             static const wxEventType eventsMouse[] =
2174                             {
2175                                 wxEVT_MOTION,
2176                                 wxEVT_LEFT_DOWN,
2177                                 wxEVT_LEFT_UP,
2178                                 wxEVT_LEFT_DCLICK,
2179                                 wxEVT_RIGHT_DOWN,
2180                                 wxEVT_RIGHT_UP,
2181                                 wxEVT_RIGHT_DCLICK,
2182                             };
2183
2184                             // the event ids are consecutive
2185                             wxMouseEvent
2186                                 evtMouse(eventsMouse[enlink->msg - WM_MOUSEMOVE]);
2187
2188                             InitMouseEvent(evtMouse,
2189                                            GET_X_LPARAM(enlink->lParam),
2190                                            GET_Y_LPARAM(enlink->lParam),
2191                                            enlink->wParam);
2192
2193                             wxTextUrlEvent event(m_windowId, evtMouse,
2194                                                  enlink->chrg.cpMin,
2195                                                  enlink->chrg.cpMax);
2196
2197                             InitCommandEvent(event);
2198
2199                             *result = ProcessCommand(event);
2200                         }
2201                         break;
2202                 }
2203             }
2204             return true;
2205     }
2206
2207     // not processed, leave it to the base class
2208     return wxTextCtrlBase::MSWOnNotify(idCtrl, lParam, result);
2209 }
2210
2211 // ----------------------------------------------------------------------------
2212 // colour setting for the rich edit controls
2213 // ----------------------------------------------------------------------------
2214
2215 bool wxTextCtrl::SetBackgroundColour(const wxColour& colour)
2216 {
2217     if ( !wxTextCtrlBase::SetBackgroundColour(colour) )
2218     {
2219         // colour didn't really change
2220         return false;
2221     }
2222
2223     if ( IsRich() )
2224     {
2225         // rich edit doesn't use WM_CTLCOLOR, hence we need to send
2226         // EM_SETBKGNDCOLOR additionally
2227         ::SendMessage(GetHwnd(), EM_SETBKGNDCOLOR, 0, wxColourToRGB(colour));
2228     }
2229
2230     return true;
2231 }
2232
2233 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
2234 {
2235     if ( !wxTextCtrlBase::SetForegroundColour(colour) )
2236     {
2237         // colour didn't really change
2238         return false;
2239     }
2240
2241     if ( IsRich() )
2242     {
2243         // change the colour of everything
2244         CHARFORMAT cf;
2245         wxZeroMemory(cf);
2246         cf.cbSize = sizeof(cf);
2247         cf.dwMask = CFM_COLOR;
2248         cf.crTextColor = wxColourToRGB(colour);
2249         ::SendMessage(GetHwnd(), EM_SETCHARFORMAT, SCF_ALL, (LPARAM)&cf);
2250     }
2251
2252     return true;
2253 }
2254
2255 // ----------------------------------------------------------------------------
2256 // styling support for rich edit controls
2257 // ----------------------------------------------------------------------------
2258
2259 #if wxUSE_RICHEDIT
2260
2261 bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
2262 {
2263     if ( !IsRich() )
2264     {
2265         // can't do it with normal text control
2266         return false;
2267     }
2268
2269     // the richedit 1.0 doesn't handle setting background colour, so don't
2270     // even try to do anything if it's the only thing we want to change
2271     if ( m_verRichEdit == 1 && !style.HasFont() && !style.HasTextColour() &&
2272         !style.HasLeftIndent() && !style.HasRightIndent() && !style.HasAlignment() &&
2273         !style.HasTabs() )
2274     {
2275         // nothing to do: return true if there was really nothing to do and
2276         // false if we failed to set bg colour
2277         return !style.HasBackgroundColour();
2278     }
2279
2280     // order the range if needed
2281     if ( start > end )
2282     {
2283         long tmp = start;
2284         start = end;
2285         end = tmp;
2286     }
2287
2288     // we can only change the format of the selection, so select the range we
2289     // want and restore the old selection later
2290     long startOld, endOld;
2291     GetSelection(&startOld, &endOld);
2292
2293     // but do we really have to change the selection?
2294     bool changeSel = start != startOld || end != endOld;
2295
2296     if ( changeSel )
2297     {
2298         DoSetSelection(start, end, false /* don't scroll caret into view */);
2299     }
2300
2301     // initialize CHARFORMAT struct
2302 #if wxUSE_RICHEDIT2
2303     CHARFORMAT2 cf;
2304 #else
2305     CHARFORMAT cf;
2306 #endif
2307
2308     wxZeroMemory(cf);
2309
2310     // we can't use CHARFORMAT2 with RichEdit 1.0, so pretend it is a simple
2311     // CHARFORMAT in that case
2312 #if wxUSE_RICHEDIT2
2313     if ( m_verRichEdit == 1 )
2314     {
2315         // this is the only thing the control is going to grok
2316         cf.cbSize = sizeof(CHARFORMAT);
2317     }
2318     else
2319 #endif
2320     {
2321         // CHARFORMAT or CHARFORMAT2
2322         cf.cbSize = sizeof(cf);
2323     }
2324
2325     if ( style.HasFont() )
2326     {
2327         // VZ: CFM_CHARSET doesn't seem to do anything at all in RichEdit 2.0
2328         //     but using it doesn't seem to hurt neither so leaving it for now
2329
2330         cf.dwMask |= CFM_FACE | CFM_SIZE | CFM_CHARSET |
2331                      CFM_ITALIC | CFM_BOLD | CFM_UNDERLINE;
2332
2333         // fill in data from LOGFONT but recalculate lfHeight because we need
2334         // the real height in twips and not the negative number which
2335         // wxFillLogFont() returns (this is correct in general and works with
2336         // the Windows font mapper, but not here)
2337         LOGFONT lf;
2338         wxFillLogFont(&lf, &style.GetFont());
2339         cf.yHeight = 20*style.GetFont().GetPointSize(); // 1 pt = 20 twips
2340         cf.bCharSet = lf.lfCharSet;
2341         cf.bPitchAndFamily = lf.lfPitchAndFamily;
2342         wxStrncpy( cf.szFaceName, lf.lfFaceName, WXSIZEOF(cf.szFaceName) );
2343
2344         // also deal with underline/italic/bold attributes: note that we must
2345         // always set CFM_ITALIC &c bits in dwMask, even if we don't set the
2346         // style to allow clearing it
2347         if ( lf.lfItalic )
2348         {
2349             cf.dwEffects |= CFE_ITALIC;
2350         }
2351
2352         if ( lf.lfWeight == FW_BOLD )
2353         {
2354             cf.dwEffects |= CFE_BOLD;
2355         }
2356
2357         if ( lf.lfUnderline )
2358         {
2359             cf.dwEffects |= CFE_UNDERLINE;
2360         }
2361
2362         // strikeout fonts are not supported by wxWidgets
2363     }
2364
2365     if ( style.HasTextColour() )
2366     {
2367         cf.dwMask |= CFM_COLOR;
2368         cf.crTextColor = wxColourToRGB(style.GetTextColour());
2369     }
2370
2371 #if wxUSE_RICHEDIT2
2372     if ( m_verRichEdit != 1 && style.HasBackgroundColour() )
2373     {
2374         cf.dwMask |= CFM_BACKCOLOR;
2375         cf.crBackColor = wxColourToRGB(style.GetBackgroundColour());
2376     }
2377 #endif // wxUSE_RICHEDIT2
2378
2379     // do format the selection
2380     bool ok = ::SendMessage(GetHwnd(), EM_SETCHARFORMAT,
2381                             SCF_SELECTION, (LPARAM)&cf) != 0;
2382     if ( !ok )
2383     {
2384         wxLogDebug(_T("SendMessage(EM_SETCHARFORMAT, SCF_SELECTION) failed"));
2385     }
2386
2387     // now do the paragraph formatting
2388     PARAFORMAT2 pf;
2389     wxZeroMemory(pf);
2390     // we can't use PARAFORMAT2 with RichEdit 1.0, so pretend it is a simple
2391     // PARAFORMAT in that case
2392 #if wxUSE_RICHEDIT2
2393     if ( m_verRichEdit == 1 )
2394     {
2395         // this is the only thing the control is going to grok
2396         pf.cbSize = sizeof(PARAFORMAT);
2397     }
2398     else
2399 #endif
2400     {
2401         // PARAFORMAT or PARAFORMAT2
2402         pf.cbSize = sizeof(pf);
2403     }
2404
2405     if (style.HasAlignment())
2406     {
2407         pf.dwMask |= PFM_ALIGNMENT;
2408         if (style.GetAlignment() == wxTEXT_ALIGNMENT_RIGHT)
2409             pf.wAlignment = PFA_RIGHT;
2410         else if (style.GetAlignment() == wxTEXT_ALIGNMENT_CENTRE)
2411             pf.wAlignment = PFA_CENTER;
2412         else if (style.GetAlignment() == wxTEXT_ALIGNMENT_JUSTIFIED)
2413             pf.wAlignment = PFA_JUSTIFY;
2414         else
2415             pf.wAlignment = PFA_LEFT;
2416     }
2417
2418     if (style.HasLeftIndent())
2419     {
2420         pf.dwMask |= PFM_STARTINDENT | PFM_OFFSET;
2421
2422         // Convert from 1/10 mm to TWIPS
2423         pf.dxStartIndent = (int) (((double) style.GetLeftIndent()) * mm2twips / 10.0) ;
2424         pf.dxOffset = (int) (((double) style.GetLeftSubIndent()) * mm2twips / 10.0) ;
2425     }
2426
2427     if (style.HasRightIndent())
2428     {
2429         pf.dwMask |= PFM_RIGHTINDENT;
2430
2431         // Convert from 1/10 mm to TWIPS
2432         pf.dxRightIndent = (int) (((double) style.GetRightIndent()) * mm2twips / 10.0) ;
2433     }
2434
2435     if (style.HasTabs())
2436     {
2437         pf.dwMask |= PFM_TABSTOPS;
2438
2439         const wxArrayInt& tabs = style.GetTabs();
2440
2441         pf.cTabCount = (SHORT)wxMin(tabs.GetCount(), MAX_TAB_STOPS);
2442         size_t i;
2443         for (i = 0; i < (size_t) pf.cTabCount; i++)
2444         {
2445             // Convert from 1/10 mm to TWIPS
2446             pf.rgxTabs[i] = (int) (((double) tabs[i]) * mm2twips / 10.0) ;
2447         }
2448     }
2449
2450     if (pf.dwMask != 0)
2451     {
2452         // do format the selection
2453         bool ok = ::SendMessage(GetHwnd(), EM_SETPARAFORMAT,
2454             0, (LPARAM) &pf) != 0;
2455         if ( !ok )
2456         {
2457             wxLogDebug(_T("SendMessage(EM_SETPARAFORMAT, 0) failed"));
2458         }
2459     }
2460
2461     if ( changeSel )
2462     {
2463         // restore the original selection
2464         DoSetSelection(startOld, endOld, false);
2465     }
2466
2467     return ok;
2468 }
2469
2470 bool wxTextCtrl::SetDefaultStyle(const wxTextAttr& style)
2471 {
2472     if ( !wxTextCtrlBase::SetDefaultStyle(style) )
2473         return false;
2474
2475     if ( IsEditable() )
2476     {
2477         // we have to do this or the style wouldn't apply for the text typed by
2478         // the user
2479         wxTextPos posLast = GetLastPosition();
2480         SetStyle(posLast, posLast, m_defaultStyle);
2481     }
2482
2483     return true;
2484 }
2485
2486 bool wxTextCtrl::GetStyle(long position, wxTextAttr& style)
2487 {
2488     if ( !IsRich() )
2489     {
2490         // can't do it with normal text control
2491         return false;
2492     }
2493
2494     // initialize CHARFORMAT struct
2495 #if wxUSE_RICHEDIT2
2496     CHARFORMAT2 cf;
2497 #else
2498     CHARFORMAT cf;
2499 #endif
2500
2501     wxZeroMemory(cf);
2502
2503     // we can't use CHARFORMAT2 with RichEdit 1.0, so pretend it is a simple
2504     // CHARFORMAT in that case
2505 #if wxUSE_RICHEDIT2
2506     if ( m_verRichEdit == 1 )
2507     {
2508         // this is the only thing the control is going to grok
2509         cf.cbSize = sizeof(CHARFORMAT);
2510     }
2511     else
2512 #endif
2513     {
2514         // CHARFORMAT or CHARFORMAT2
2515         cf.cbSize = sizeof(cf);
2516     }
2517     // we can only change the format of the selection, so select the range we
2518     // want and restore the old selection later
2519     long startOld, endOld;
2520     GetSelection(&startOld, &endOld);
2521
2522     // but do we really have to change the selection?
2523     bool changeSel = position != startOld || position != endOld;
2524
2525     if ( changeSel )
2526     {
2527         DoSetSelection(position, position, false /* don't scroll caret into view */);
2528     }
2529
2530     // get the selection formatting
2531     (void) ::SendMessage(GetHwnd(), EM_GETCHARFORMAT,
2532                             SCF_SELECTION, (LPARAM)&cf) ;
2533
2534
2535     LOGFONT lf;
2536     lf.lfHeight = cf.yHeight;
2537     lf.lfWidth = 0;
2538     lf.lfCharSet = ANSI_CHARSET; // FIXME: how to get correct charset?
2539     lf.lfClipPrecision = 0;
2540     lf.lfEscapement = 0;
2541     wxStrcpy(lf.lfFaceName, cf.szFaceName);
2542
2543     //NOTE:  we _MUST_ set each of these values to _something_ since we
2544     //do not call wxZeroMemory on the LOGFONT lf
2545     if (cf.dwEffects & CFE_ITALIC)
2546         lf.lfItalic = TRUE;
2547     else
2548         lf.lfItalic = FALSE;
2549
2550     lf.lfOrientation = 0;
2551     lf.lfPitchAndFamily = cf.bPitchAndFamily;
2552     lf.lfQuality = 0;
2553
2554     if (cf.dwEffects & CFE_STRIKEOUT)
2555         lf.lfStrikeOut = TRUE;
2556     else
2557         lf.lfStrikeOut = FALSE;
2558
2559     if (cf.dwEffects & CFE_UNDERLINE)
2560         lf.lfUnderline = TRUE;
2561     else
2562         lf.lfUnderline = FALSE;
2563
2564     if (cf.dwEffects & CFE_BOLD)
2565         lf.lfWeight = FW_BOLD;
2566     else
2567         lf.lfWeight = FW_NORMAL;
2568
2569     wxFont font = wxCreateFontFromLogFont(& lf);
2570     if (font.Ok())
2571     {
2572         style.SetFont(font);
2573     }
2574     style.SetTextColour(wxColour(cf.crTextColor));
2575
2576 #if wxUSE_RICHEDIT2
2577     if ( m_verRichEdit != 1 )
2578     {
2579         // cf.dwMask |= CFM_BACKCOLOR;
2580         style.SetBackgroundColour(wxColour(cf.crBackColor));
2581     }
2582 #endif // wxUSE_RICHEDIT2
2583
2584     // now get the paragraph formatting
2585     PARAFORMAT2 pf;
2586     wxZeroMemory(pf);
2587     // we can't use PARAFORMAT2 with RichEdit 1.0, so pretend it is a simple
2588     // PARAFORMAT in that case
2589 #if wxUSE_RICHEDIT2
2590     if ( m_verRichEdit == 1 )
2591     {
2592         // this is the only thing the control is going to grok
2593         pf.cbSize = sizeof(PARAFORMAT);
2594     }
2595     else
2596 #endif
2597     {
2598         // PARAFORMAT or PARAFORMAT2
2599         pf.cbSize = sizeof(pf);
2600     }
2601
2602     // do format the selection
2603     (void) ::SendMessage(GetHwnd(), EM_GETPARAFORMAT, 0, (LPARAM) &pf) ;
2604
2605     style.SetLeftIndent( (int) ((double) pf.dxStartIndent * twips2mm * 10.0), (int) ((double) pf.dxOffset * twips2mm * 10.0) );
2606     style.SetRightIndent( (int) ((double) pf.dxRightIndent * twips2mm * 10.0) );
2607
2608     if (pf.wAlignment == PFA_CENTER)
2609         style.SetAlignment(wxTEXT_ALIGNMENT_CENTRE);
2610     else if (pf.wAlignment == PFA_RIGHT)
2611         style.SetAlignment(wxTEXT_ALIGNMENT_RIGHT);
2612     else if (pf.wAlignment == PFA_JUSTIFY)
2613         style.SetAlignment(wxTEXT_ALIGNMENT_JUSTIFIED);
2614     else
2615         style.SetAlignment(wxTEXT_ALIGNMENT_LEFT);
2616
2617     wxArrayInt tabStops;
2618     size_t i;
2619     for (i = 0; i < (size_t) pf.cTabCount; i++)
2620     {
2621         tabStops.Add( (int) ((double) (pf.rgxTabs[i] & 0xFFFF) * twips2mm * 10.0) );
2622     }
2623
2624     if ( changeSel )
2625     {
2626         // restore the original selection
2627         DoSetSelection(startOld, endOld, false);
2628     }
2629
2630     return true;
2631 }
2632
2633 #endif
2634
2635 // ----------------------------------------------------------------------------
2636 // wxRichEditModule
2637 // ----------------------------------------------------------------------------
2638
2639 static const HINSTANCE INVALID_HINSTANCE = (HINSTANCE)-1;
2640
2641 bool wxRichEditModule::OnInit()
2642 {
2643     // don't do anything - we will load it when needed
2644     return true;
2645 }
2646
2647 void wxRichEditModule::OnExit()
2648 {
2649     for ( size_t i = 0; i < WXSIZEOF(ms_hRichEdit); i++ )
2650     {
2651         if ( ms_hRichEdit[i] && ms_hRichEdit[i] != INVALID_HINSTANCE )
2652         {
2653             ::FreeLibrary(ms_hRichEdit[i]);
2654             ms_hRichEdit[i] = NULL;
2655         }
2656     }
2657 }
2658
2659 /* static */
2660 bool wxRichEditModule::Load(Version version)
2661 {
2662     if ( ms_hRichEdit[version] == INVALID_HINSTANCE )
2663     {
2664         // we had already tried to load it and failed
2665         return false;
2666     }
2667
2668     if ( ms_hRichEdit[version] )
2669     {
2670         // we've already got this one
2671         return true;
2672     }
2673
2674     static const wxChar *dllnames[] =
2675     {
2676         _T("riched32"),
2677         _T("riched20"),
2678         _T("msftedit"),
2679     };
2680
2681     wxCOMPILE_TIME_ASSERT( WXSIZEOF(dllnames) == Version_Max,
2682                             RichEditDllNamesVersionsMismatch );
2683
2684     ms_hRichEdit[version] = ::LoadLibrary(dllnames[version]);
2685
2686     if ( !ms_hRichEdit[version] )
2687     {
2688         ms_hRichEdit[version] = INVALID_HINSTANCE;
2689
2690         return false;
2691     }
2692
2693     return true;
2694 }
2695
2696 #endif // wxUSE_RICHEDIT
2697
2698 #endif // wxUSE_TEXTCTRL && !(__SMARTPHONE__ && __WXWINCE__)