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 and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 #ifdef __GNUG__
  17     #pragma implementation "textctrl.h"
  18 #endif
  19
  20 // ----------------------------------------------------------------------------
  21 // headers
  22 // ----------------------------------------------------------------------------
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #if wxUSE_TEXTCTRL
  32
  33 #ifndef WX_PRECOMP
  34     #include "wx/textctrl.h"
  35     #include "wx/settings.h"
  36     #include "wx/brush.h"
  37     #include "wx/utils.h"
  38     #include "wx/intl.h"
  39     #include "wx/log.h"
  40     #include "wx/app.h"
  41     #include "wx/menu.h"
  42 #endif
  43
  44 #include "wx/module.h"
  45
  46 #if wxUSE_CLIPBOARD
  47     #include "wx/clipbrd.h"
  48 #endif
  49
  50 #include "wx/textfile.h"
  51
  52 #include <windowsx.h>
  53
  54 #include "wx/msw/private.h"
  55
  56 #include <string.h>
  57 #include <stdlib.h>
  58 #include <sys/types.h>
  59
  60 #if wxUSE_RICHEDIT && (!defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__))
  61     #include <richedit.h>
  62 #endif
  63
  64 // old mingw32 doesn't define this
  65 #ifndef CFM_CHARSET
  66     #define CFM_CHARSET 0x08000000
  67 #endif // CFM_CHARSET
  68
  69 #ifndef CFM_BACKCOLOR
  70     #define CFM_BACKCOLOR 0x04000000
  71 #endif
  72
  73 // cygwin does not have these defined for richedit
  74 #ifndef ENM_LINK
  75     #define ENM_LINK 0x04000000
  76 #endif
  77
  78 #ifndef EM_AUTOURLDETECT
  79     #define EM_AUTOURLDETECT (WM_USER + 91)
  80 #endif
  81
  82 #ifndef EN_LINK
  83     #define EN_LINK 0x070b
  84
  85     typedef struct _enlink
  86     {
  87         NMHDR nmhdr;
  88         UINT msg;
  89         WPARAM wParam;
  90         LPARAM lParam;
  91         CHARRANGE chrg;
  92     } ENLINK;
  93 #endif // ENLINK
  94
  95 #ifndef SF_UNICODE
  96     #define SF_UNICODE 0x0010
  97 #endif
  98
  99 // Watcom C++ doesn't define this
 100 #ifndef SCF_ALL
 101 #define SCF_ALL 0x0004
 102 #endif
 103
 104 // ----------------------------------------------------------------------------
 105 // private functions
 106 // ----------------------------------------------------------------------------
 107
 108 #if wxUSE_RICHEDIT
 109
 110 DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb);
 111
 112 #endif // wxUSE_RICHEDIT
 113
 114 // ----------------------------------------------------------------------------
 115 // private classes
 116 // ----------------------------------------------------------------------------
 117
 118 #if wxUSE_RICHEDIT
 119
 120 // this module initializes RichEdit DLL(s) if needed
 121 class wxRichEditModule : public wxModule
 122 {
 123 public:
 124     virtual bool OnInit();
 125     virtual void OnExit();
 126
 127     // load the richedit DLL of at least of required version
 128     static bool Load(int version = 1);
 129
 130 private:
 131     // the handles to richedit 1.0 and 2.0 (or 3.0) DLLs
 132     static HINSTANCE ms_hRichEdit[2];
 133
 134     DECLARE_DYNAMIC_CLASS(wxRichEditModule)
 135 };
 136
 137 HINSTANCE wxRichEditModule::ms_hRichEdit[2] = { NULL, NULL };
 138
 139 IMPLEMENT_DYNAMIC_CLASS(wxRichEditModule, wxModule)
 140
 141 #endif // wxUSE_RICHEDIT
 142
 143 // ----------------------------------------------------------------------------
 144 // event tables and other macros
 145 // ----------------------------------------------------------------------------
 146
 147 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl)
 148
 149 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 150     EVT_CHAR(wxTextCtrl::OnChar)
 151     EVT_DROP_FILES(wxTextCtrl::OnDropFiles)
 152
 153 #if wxUSE_RICHEDIT
 154     EVT_RIGHT_UP(wxTextCtrl::OnRightClick)
 155 #endif
 156
 157     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 158     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 159     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 160     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 161     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 162     EVT_MENU(wxID_CLEAR, wxTextCtrl::OnDelete)
 163     EVT_MENU(wxID_SELECTALL, wxTextCtrl::OnSelectAll)
 164
 165     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 166     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 167     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 168     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 169     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 170     EVT_UPDATE_UI(wxID_CLEAR, wxTextCtrl::OnUpdateDelete)
 171     EVT_UPDATE_UI(wxID_SELECTALL, wxTextCtrl::OnUpdateSelectAll)
 172 #ifdef __WIN16__
 173     EVT_ERASE_BACKGROUND(wxTextCtrl::OnEraseBackground)
 174 #endif
 175 END_EVENT_TABLE()
 176
 177 // ============================================================================
 178 // implementation
 179 // ============================================================================
 180
 181 // ----------------------------------------------------------------------------
 182 // creation
 183 // ----------------------------------------------------------------------------
 184
 185 void wxTextCtrl::Init()
 186 {
 187 #if wxUSE_RICHEDIT
 188     m_verRichEdit = 0;
 189 #endif // wxUSE_RICHEDIT
 190
 191     m_privateContextMenu = NULL;
 192     m_suppressNextUpdate = FALSE;
 193 }
 194
 195 wxTextCtrl::~wxTextCtrl()
 196 {
 197     if (m_privateContextMenu)
 198     {
 199         delete m_privateContextMenu;
 200         m_privateContextMenu = NULL;
 201     }
 202 }
 203
 204 bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,
 205                         const wxString& value,
 206                         const wxPoint& pos,
 207                         const wxSize& size,
 208                         long style,
 209                         const wxValidator& validator,
 210                         const wxString& name)
 211 {
 212     // base initialization
 213     if ( !CreateBase(parent, id, pos, size, style, validator, name) )
 214         return FALSE;
 215
 216     if ( parent )
 217         parent->AddChild(this);
 218
 219     // translate wxWin style flags to MSW ones
 220     WXDWORD msStyle = MSWGetCreateWindowFlags();
 221
 222     // do create the control - either an EDIT or RICHEDIT
 223     wxString windowClass = wxT("EDIT");
 224
 225 #if wxUSE_RICHEDIT
 226     if ( m_windowStyle & wxTE_AUTO_URL )
 227     {
 228         // automatic URL detection only works in RichEdit 2.0+
 229         m_windowStyle |= wxTE_RICH2;
 230     }
 231
 232     if ( m_windowStyle & wxTE_RICH2 )
 233     {
 234         // using richedit 2.0 implies using wxTE_RICH
 235         m_windowStyle |= wxTE_RICH;
 236     }
 237
 238     // we need to load the richedit DLL before creating the rich edit control
 239     if ( m_windowStyle & wxTE_RICH )
 240     {
 241         static bool s_errorGiven = FALSE;// MT-FIXME
 242
 243         // Which version do we need? Use 1.0 by default because it is much more
 244         // like the the standard EDIT or 2.0 if explicitly requested, but use
 245         // only 2.0 in Unicode mode as 1.0 doesn't support Unicode at all
 246         //
 247         // TODO: RichEdit 3.0 is apparently capable of emulating RichEdit 1.0
 248         //       (and thus EDIT) much better than RichEdit 2.0 so we probably
 249         //       should use 3.0 if available as it is the best of both worlds -
 250         //       but as I can't test it right now I don't do it (VZ)
 251 #if wxUSE_UNICODE
 252         const int verRichEdit = 2;
 253 #else // !wxUSE_UNICODE
 254         int verRichEdit = m_windowStyle & wxTE_RICH2 ? 2 : 1;
 255 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
 256
 257         // only give the error msg once if the DLL can't be loaded
 258         if ( !s_errorGiven )
 259         {
 260             // try to load the RichEdit DLL (will do nothing if already done)
 261             if ( !wxRichEditModule::Load(verRichEdit) )
 262             {
 263 #if !wxUSE_UNICODE
 264                 // try another version?
 265                 verRichEdit = 3 - verRichEdit; // 1 <-> 2
 266
 267                 if ( !wxRichEditModule::Load(verRichEdit) )
 268 #endif // wxUSE_UNICODE
 269                 {
 270                     wxLogError(_("Impossible to create a rich edit control, using simple text control instead. Please reinstall riched32.dll"));
 271
 272                     s_errorGiven = TRUE;
 273                 }
 274             }
 275         }
 276
 277         // have we managed to load any richedit version?
 278         if ( !s_errorGiven )
 279         {
 280             m_verRichEdit = verRichEdit;
 281             if ( m_verRichEdit == 1 )
 282             {
 283                 windowClass = wxT("RICHEDIT");
 284             }
 285             else
 286             {
 287 #ifndef RICHEDIT_CLASS
 288                 wxString RICHEDIT_CLASS;
 289                 RICHEDIT_CLASS.Printf(_T("RichEdit%d0"), m_verRichEdit);
 290 #if wxUSE_UNICODE
 291                 RICHEDIT_CLASS += _T('W');
 292 #else // ANSI
 293                 RICHEDIT_CLASS += _T('A');
 294 #endif // Unicode/ANSI
 295 #endif // !RICHEDIT_CLASS
 296
 297                 windowClass = RICHEDIT_CLASS;
 298             }
 299         }
 300     }
 301 #endif // wxUSE_RICHEDIT
 302
 303     // we need to turn '\n's into "\r\n"s for the multiline controls
 304     wxString valueWin;
 305     if ( m_windowStyle & wxTE_MULTILINE )
 306     {
 307         valueWin = wxTextFile::Translate(value, wxTextFileType_Dos);
 308     }
 309     else // single line
 310     {
 311         valueWin = value;
 312     }
 313
 314     if ( !MSWCreateControl(windowClass, msStyle, pos, size, valueWin) )
 315         return FALSE;
 316
 317     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
 318
 319 #if wxUSE_RICHEDIT
 320     if ( IsRich() )
 321     {
 322         // enable the events we're interested in: we want to get EN_CHANGE as
 323         // for the normal controls
 324         LPARAM mask = ENM_CHANGE;
 325
 326         if ( GetRichVersion() == 1 )
 327         {
 328             // we also need EN_MSGFILTER for richedit 1.0 for the reasons
 329             // explained in its handler
 330            mask |= ENM_MOUSEEVENTS;
 331         }
 332         else if ( m_windowStyle & wxTE_AUTO_URL )
 333         {
 334             mask |= ENM_LINK;
 335
 336             ::SendMessage(GetHwnd(), EM_AUTOURLDETECT, TRUE, 0);
 337         }
 338
 339         ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, mask);
 340     }
 341 #endif // wxUSE_RICHEDIT
 342
 343     return TRUE;
 344 }
 345
 346 // Make sure the window style (etc.) reflects the HWND style (roughly)
 347 void wxTextCtrl::AdoptAttributesFromHWND()
 348 {
 349     wxWindow::AdoptAttributesFromHWND();
 350
 351     HWND hWnd = GetHwnd();
 352     long style = ::GetWindowLong(hWnd, GWL_STYLE);
 353
 354     // retrieve the style to see whether this is an edit or richedit ctrl
 355 #if wxUSE_RICHEDIT
 356     wxString classname = wxGetWindowClass(GetHWND());
 357
 358     if ( classname.IsSameAs(_T("EDIT"), FALSE /* no case */) )
 359     {
 360         m_verRichEdit = 0;
 361     }
 362     else // rich edit?
 363     {
 364         wxChar c;
 365         if ( wxSscanf(classname, _T("RichEdit%d0%c"), &m_verRichEdit, &c) != 2 )
 366         {
 367             wxLogDebug(_T("Unknown edit control '%s'."), classname.c_str());
 368
 369             m_verRichEdit = 0;
 370         }
 371     }
 372 #endif // wxUSE_RICHEDIT
 373
 374     if (style & ES_MULTILINE)
 375         m_windowStyle |= wxTE_MULTILINE;
 376     if (style & ES_PASSWORD)
 377         m_windowStyle |= wxTE_PASSWORD;
 378     if (style & ES_READONLY)
 379         m_windowStyle |= wxTE_READONLY;
 380     if (style & ES_WANTRETURN)
 381         m_windowStyle |= wxTE_PROCESS_ENTER;
 382     if (style & ES_CENTER)
 383         m_windowStyle |= wxTE_CENTRE;
 384     if (style & ES_RIGHT)
 385         m_windowStyle |= wxTE_RIGHT;
 386 }
 387
 388 WXDWORD wxTextCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
 389 {
 390     // default border for the text controls is the sunken one
 391     if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
 392     {
 393         style |= wxBORDER_SUNKEN;
 394     }
 395
 396     long msStyle = wxControl::MSWGetStyle(style, exstyle);
 397
 398     // styles which we alaways add by default
 399     if ( style & wxTE_MULTILINE )
 400     {
 401         wxASSERT_MSG( !(style & wxTE_PROCESS_ENTER),
 402                       wxT("wxTE_PROCESS_ENTER style is ignored for multiline text controls (they always process it)") );
 403
 404         msStyle |= ES_MULTILINE | ES_WANTRETURN;
 405         if ( !(style & wxTE_NO_VSCROLL) )
 406         {
 407             // always adjust the vertical scrollbar automatically if we have it
 408             msStyle |= WS_VSCROLL | ES_AUTOVSCROLL;
 409
 410             // we have to use this style for the rich edit controls because
 411             // without it the vertical scrollbar never appears at all in
 412             // richedit 3.0 because of our ECO_NOHIDESEL hack (search for it)
 413             if ( style & wxTE_RICH2 )
 414             {
 415                 msStyle |= ES_DISABLENOSCROLL;
 416             }
 417         }
 418
 419         style |= wxTE_PROCESS_ENTER;
 420     }
 421     else // !multiline
 422     {
 423         // there is really no reason to not have this style for single line
 424         // text controls
 425         msStyle |= ES_AUTOHSCROLL;
 426     }
 427
 428     // styles which we add depending on the specified wxWindows styles
 429     if ( style & wxHSCROLL )
 430     {
 431         // automatically scroll the control horizontally as necessary
 432         msStyle |= WS_HSCROLL;// | ES_AUTOHSCROLL;
 433     }
 434
 435     if ( style & wxTE_READONLY )
 436         msStyle |= ES_READONLY;
 437
 438     if ( style & wxTE_PASSWORD )
 439         msStyle |= ES_PASSWORD;
 440
 441     if ( style & wxTE_NOHIDESEL )
 442         msStyle |= ES_NOHIDESEL;
 443
 444     // note that we can't do do "& wxTE_LEFT" as wxTE_LEFT == 0
 445     if ( style & wxTE_CENTRE )
 446         msStyle |= ES_CENTER;
 447     else if ( style & wxTE_RIGHT )
 448         msStyle |= ES_RIGHT;
 449     else
 450         msStyle |= ES_LEFT; // ES_LEFT if 0 as well but for consistency...
 451
 452     return msStyle;
 453 }
 454
 455 void wxTextCtrl::SetWindowStyleFlag(long style)
 456 {
 457     if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
 458         style |= wxBORDER_SUNKEN;
 459
 460 #if wxUSE_RICHEDIT
 461     // we have to deal with some styles separately because they can't be
 462     // changed by simply calling SetWindowLong(GWL_STYLE) but can be changed
 463     // using richedit-specific EM_SETOPTIONS
 464     if ( IsRich() &&
 465             ((style & wxTE_NOHIDESEL) != (GetWindowStyle() & wxTE_NOHIDESEL)) )
 466     {
 467         bool set = (style & wxTE_NOHIDESEL) != 0;
 468
 469         ::SendMessage(GetHwnd(), EM_SETOPTIONS, set ? ECOOP_OR : ECOOP_AND,
 470                       set ? ECO_NOHIDESEL : ~ECO_NOHIDESEL);
 471     }
 472 #endif // wxUSE_RICHEDIT
 473
 474     wxControl::SetWindowStyleFlag(style);
 475 }
 476
 477 // ----------------------------------------------------------------------------
 478 // set/get the controls text
 479 // ----------------------------------------------------------------------------
 480
 481 wxString wxTextCtrl::GetValue() const
 482 {
 483     // range 0..-1 is special for GetRange() and means to retrieve all text
 484     return GetRange(0, -1);
 485 }
 486
 487 wxString wxTextCtrl::GetRange(long from, long to) const
 488 {
 489     wxString str;
 490
 491     if ( from >= to && to != -1 )
 492     {
 493         // nothing to retrieve
 494         return str;
 495     }
 496
 497 #if wxUSE_RICHEDIT
 498     if ( IsRich() )
 499     {
 500         int len = GetWindowTextLength(GetHwnd());
 501         if ( len > from )
 502         {
 503             // alloc one extra WORD as needed by the control
 504             wxChar *p = str.GetWriteBuf(++len);
 505
 506             TEXTRANGE textRange;
 507             textRange.chrg.cpMin = from;
 508             textRange.chrg.cpMax = to == -1 ? len : to;
 509             textRange.lpstrText = p;
 510
 511             (void)SendMessage(GetHwnd(), EM_GETTEXTRANGE, 0, (LPARAM)&textRange);
 512
 513             if ( m_verRichEdit > 1 )
 514             {
 515                 // RichEdit 2.0 uses just CR ('\r') for the newlines which is
 516                 // neither Unix nor Windows style - convert it to something
 517                 // reasonable
 518                 for ( ; *p; p++ )
 519                 {
 520                     if ( *p == _T('\r') )
 521                         *p = _T('\n');
 522                 }
 523             }
 524
 525             str.UngetWriteBuf();
 526
 527             if ( m_verRichEdit == 1 )
 528             {
 529                 // convert to the canonical form - see comment below
 530                 str = wxTextFile::Translate(str, wxTextFileType_Unix);
 531             }
 532         }
 533         //else: no text at all, leave the string empty
 534     }
 535     else
 536 #endif // wxUSE_RICHEDIT
 537     {
 538         // retrieve all text
 539         str = wxGetWindowText(GetHWND());
 540
 541         // need only a range?
 542         if ( from < to )
 543         {
 544             str = str.Mid(from, to - from);
 545         }
 546
 547         // WM_GETTEXT uses standard DOS CR+LF (\r\n) convention - convert to the
 548         // canonical one (same one as above) for consistency with the other kinds
 549         // of controls and, more importantly, with the other ports
 550         str = wxTextFile::Translate(str, wxTextFileType_Unix);
 551     }
 552
 553     return str;
 554 }
 555
 556 void wxTextCtrl::SetValue(const wxString& value)
 557 {
 558     // if the text is long enough, it's faster to just set it instead of first
 559     // comparing it with the old one (chances are that it will be different
 560     // anyhow, this comparison is there to avoid flicker for small single-line
 561     // edit controls mostly)
 562     if ( (value.length() > 0x400) || (value != GetValue()) )
 563     {
 564         DoWriteText(value, FALSE /* not selection only */);
 565
 566         // mark the control as being not dirty - we changed its text, not the
 567         // user
 568         DiscardEdits();
 569
 570         // for compatibility, don't move the cursor when doing SetValue()
 571         SetInsertionPoint(0);
 572     }
 573 }
 574
 575 #if wxUSE_RICHEDIT && (!wxUSE_UNICODE || wxUSE_UNICODE_MSLU)
 576
 577 DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb)
 578 {
 579     *pcb = 0;
 580
 581     wchar_t *wbuf = (wchar_t *)buf;
 582     const wchar_t *wpc = *(const wchar_t **)dwCookie;
 583     while ( cb && *wpc )
 584     {
 585         *wbuf++ = *wpc++;
 586
 587         cb -= sizeof(wchar_t);
 588         (*pcb) += sizeof(wchar_t);
 589     }
 590
 591     *(const wchar_t **)dwCookie = wpc;
 592
 593     return 0;
 594 }
 595
 596 extern long wxEncodingToCodepage(wxFontEncoding encoding); // from utils.cpp
 597
 598 #ifdef __WXWINE__
 599 bool wxTextCtrl::StreamIn(const wxString& value,
 600                           wxFontEncoding WXUNUSED(encoding),
 601                           bool selectionOnly)
 602 {
 603     return FALSE;
 604 }
 605 #else // !__WXWINE__
 606
 607 #if wxUSE_UNICODE_MSLU
 608 bool wxTextCtrl::StreamIn(const wxString& value,
 609                           wxFontEncoding WXUNUSED(encoding),
 610                           bool selectionOnly)
 611 {
 612     const wchar_t *wpc = value.c_str();
 613 #else // !wxUSE_UNICODE_MSLU
 614 bool wxTextCtrl::StreamIn(const wxString& value,
 615                           wxFontEncoding encoding,
 616                           bool selectionOnly)
 617 {
 618     // we have to use EM_STREAMIN to force richedit control 2.0+ to show any
 619     // text in the non default charset -- otherwise it thinks it knows better
 620     // than we do and always shows it in the default one
 621
 622     // first get the Windows code page for this encoding
 623     long codepage = wxEncodingToCodepage(encoding);
 624     if ( codepage == -1 )
 625     {
 626         // unknown encoding
 627         return FALSE;
 628     }
 629
 630     // next translate to Unicode using this code page
 631     int len = ::MultiByteToWideChar(codepage, 0, value, -1, NULL, 0);
 632
 633 #if wxUSE_WCHAR_T
 634     wxWCharBuffer wchBuf(len);
 635 #else
 636     wchar_t *wchBuf = (wchar_t *)malloc((len + 1)*sizeof(wchar_t));
 637 #endif
 638
 639     if ( !::MultiByteToWideChar(codepage, 0, value, -1,
 640                                 (wchar_t *)(const wchar_t *)wchBuf, len) )
 641     {
 642         wxLogLastError(_T("MultiByteToWideChar"));
 643     }
 644
 645     // finally, stream it in the control
 646     const wchar_t *wpc = wchBuf;
 647 #endif // wxUSE_UNICODE_MSLU
 648
 649     EDITSTREAM eds;
 650     wxZeroMemory(eds);
 651     eds.dwCookie = (DWORD)&wpc;
 652     // the cast below is needed for broken (very) old mingw32 headers
 653     eds.pfnCallback = (EDITSTREAMCALLBACK)wxRichEditStreamIn;
 654
 655     // we're going to receive 2 EN_CHANGE notifications if we got any selection
 656     // (same problem as in DoWriteText())
 657     if ( selectionOnly && HasSelection() )
 658     {
 659         // so suppress one of them
 660         m_suppressNextUpdate = TRUE;
 661     }
 662
 663     if ( !::SendMessage(GetHwnd(), EM_STREAMIN,
 664                         SF_TEXT |
 665                         SF_UNICODE |
 666                         (selectionOnly ? SFF_SELECTION : 0),
 667                         (LPARAM)&eds) || eds.dwError )
 668     {
 669         wxLogLastError(_T("EM_STREAMIN"));
 670     }
 671
 672 #if !wxUSE_WCHAR_T
 673     free(wchBuf);
 674 #endif // !wxUSE_WCHAR_T
 675
 676     return TRUE;
 677 }
 678
 679 #endif // __WXWINE__/!__WXWINE__
 680
 681 #endif // wxUSE_RICHEDIT
 682
 683 void wxTextCtrl::WriteText(const wxString& value)
 684 {
 685     DoWriteText(value);
 686 }
 687
 688 void wxTextCtrl::DoWriteText(const wxString& value, bool selectionOnly)
 689 {
 690     wxString valueDos;
 691     if ( m_windowStyle & wxTE_MULTILINE )
 692         valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);
 693     else
 694         valueDos = value;
 695
 696 #if wxUSE_RICHEDIT
 697     // there are several complications with the rich edit controls here
 698     bool done = FALSE;
 699     if ( IsRich() )
 700     {
 701         // first, ensure that the new text will be in the default style
 702         if ( !m_defaultStyle.IsDefault() )
 703         {
 704             long start, end;
 705             GetSelection(&start, &end);
 706             SetStyle(start, end, m_defaultStyle);
 707         }
 708
 709 #if wxUSE_UNICODE_MSLU
 710         // RichEdit doesn't have Unicode version of EM_REPLACESEL on Win9x,
 711         // but EM_STREAMIN works
 712         if ( wxUsingUnicowsDll() && GetRichVersion() > 1 )
 713         {
 714            done = StreamIn(valueDos, wxFONTENCODING_SYSTEM, selectionOnly);
 715         }
 716 #endif // wxUSE_UNICODE_MSLU
 717
 718 #if !wxUSE_UNICODE && !defined(__WXWINE__)
 719         // next check if the text we're inserting must be shown in a non
 720         // default charset -- this only works for RichEdit > 1.0
 721         if ( GetRichVersion() > 1 )
 722         {
 723             wxFont font = m_defaultStyle.GetFont();
 724             if ( !font.Ok() )
 725                 font = GetFont();
 726
 727             if ( font.Ok() )
 728             {
 729                wxFontEncoding encoding = font.GetEncoding();
 730                if ( encoding != wxFONTENCODING_SYSTEM )
 731                {
 732                    done = StreamIn(valueDos, encoding, selectionOnly);
 733                }
 734             }
 735         }
 736 #endif // !wxUSE_UNICODE
 737     }
 738
 739     if ( !done )
 740 #endif // wxUSE_RICHEDIT
 741     {
 742         // in some cases we get 2 EN_CHANGE notifications after the SendMessage
 743         // call below which is confusing for the client code and so should be
 744         // avoided
 745         //
 746         // these cases are: (a) plain EDIT controls if EM_REPLACESEL is used
 747         // and there is a non empty selection currently and (b) rich text
 748         // controls in any case
 749         if (
 750 #if wxUSE_RICHEDIT
 751             IsRich() ||
 752 #endif // wxUSE_RICHEDIT
 753             (selectionOnly && HasSelection()) )
 754         {
 755             m_suppressNextUpdate = TRUE;
 756         }
 757
 758         ::SendMessage(GetHwnd(), selectionOnly ? EM_REPLACESEL : WM_SETTEXT,
 759                       0, (LPARAM)valueDos.c_str());
 760
 761         // OTOH, non rich text controls don't generate any events at all when
 762         // we use WM_SETTEXT -- have to emulate them here
 763         if ( !selectionOnly
 764 #if wxUSE_RICHEDIT
 765                 && !IsRich()
 766 #endif // wxUSE_RICHEDIT
 767            )
 768         {
 769             // Windows already sends an update event for single-line
 770             // controls.
 771             if ( m_windowStyle & wxTE_MULTILINE )
 772                 SendUpdateEvent();
 773         }
 774     }
 775
 776     AdjustSpaceLimit();
 777 }
 778
 779 void wxTextCtrl::AppendText(const wxString& text)
 780 {
 781     SetInsertionPointEnd();
 782
 783     WriteText(text);
 784
 785 #if wxUSE_RICHEDIT
 786     if ( IsMultiLine() && GetRichVersion() > 1 )
 787     {
 788         // setting the caret to the end and showing it simply doesn't work for
 789         // RichEdit 2.0 -- force it to still do what we want
 790         ::SendMessage(GetHwnd(), EM_LINESCROLL, 0, GetNumberOfLines());
 791     }
 792 #endif // wxUSE_RICHEDIT
 793 }
 794
 795 void wxTextCtrl::Clear()
 796 {
 797     ::SetWindowText(GetHwnd(), wxT(""));
 798
 799 #if wxUSE_RICHEDIT
 800     if ( !IsRich() )
 801 #endif // wxUSE_RICHEDIT
 802     {
 803         // rich edit controls send EN_UPDATE from WM_SETTEXT handler themselves
 804         // but the normal ones don't -- make Clear() behaviour consistent by
 805         // always sending this event
 806
 807         // Windows already sends an update event for single-line
 808         // controls.
 809         if ( m_windowStyle & wxTE_MULTILINE )
 810             SendUpdateEvent();
 811     }
 812 }
 813
 814 #ifdef __WIN32__
 815
 816 bool wxTextCtrl::EmulateKeyPress(const wxKeyEvent& event)
 817 {
 818     SetFocus();
 819
 820     size_t lenOld = GetValue().length();
 821
 822     wxUint32 code = event.GetRawKeyCode();
 823     ::keybd_event(code, 0, 0 /* key press */, 0);
 824     ::keybd_event(code, 0, KEYEVENTF_KEYUP, 0);
 825
 826     // assume that any alphanumeric key changes the total number of characters
 827     // in the control - this should work in 99% of cases
 828     return GetValue().length() != lenOld;
 829 }
 830
 831 #endif // __WIN32__
 832
 833 // ----------------------------------------------------------------------------
 834 // Clipboard operations
 835 // ----------------------------------------------------------------------------
 836
 837 void wxTextCtrl::Copy()
 838 {
 839     if (CanCopy())
 840     {
 841         ::SendMessage(GetHwnd(), WM_COPY, 0, 0L);
 842     }
 843 }
 844
 845 void wxTextCtrl::Cut()
 846 {
 847     if (CanCut())
 848     {
 849         ::SendMessage(GetHwnd(), WM_CUT, 0, 0L);
 850     }
 851 }
 852
 853 void wxTextCtrl::Paste()
 854 {
 855     if (CanPaste())
 856     {
 857         ::SendMessage(GetHwnd(), WM_PASTE, 0, 0L);
 858     }
 859 }
 860
 861 bool wxTextCtrl::HasSelection() const
 862 {
 863     long from, to;
 864     GetSelection(&from, &to);
 865     return from != to;
 866 }
 867
 868 bool wxTextCtrl::CanCopy() const
 869 {
 870     // Can copy if there's a selection
 871     return HasSelection();
 872 }
 873
 874 bool wxTextCtrl::CanCut() const
 875 {
 876     return CanCopy() && IsEditable();
 877 }
 878
 879 bool wxTextCtrl::CanPaste() const
 880 {
 881     if ( !IsEditable() )
 882         return FALSE;
 883
 884 #if wxUSE_RICHEDIT
 885     if ( IsRich() )
 886     {
 887         UINT cf = 0; // 0 == any format
 888
 889         return ::SendMessage(GetHwnd(), EM_CANPASTE, cf, 0) != 0;
 890     }
 891 #endif // wxUSE_RICHEDIT
 892
 893     // Standard edit control: check for straight text on clipboard
 894     if ( !::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) )
 895         return FALSE;
 896
 897     bool isTextAvailable = ::IsClipboardFormatAvailable(CF_TEXT) != 0;
 898     ::CloseClipboard();
 899
 900     return isTextAvailable;
 901 }
 902
 903 // ----------------------------------------------------------------------------
 904 // Accessors
 905 // ----------------------------------------------------------------------------
 906
 907 void wxTextCtrl::SetEditable(bool editable)
 908 {
 909     HWND hWnd = GetHwnd();
 910     SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);
 911 }
 912
 913 void wxTextCtrl::SetInsertionPoint(long pos)
 914 {
 915     DoSetSelection(pos, pos);
 916 }
 917
 918 void wxTextCtrl::SetInsertionPointEnd()
 919 {
 920     long pos;
 921
 922 #if wxUSE_RICHEDIT
 923     if ( m_verRichEdit == 1 )
 924     {
 925         // we don't have to waste time calling GetLastPosition() in this case
 926         pos = -1;
 927     }
 928     else // !RichEdit 1.0
 929 #endif // wxUSE_RICHEDIT
 930     {
 931         pos = GetLastPosition();
 932     }
 933
 934     SetInsertionPoint(pos);
 935 }
 936
 937 long wxTextCtrl::GetInsertionPoint() const
 938 {
 939 #if wxUSE_RICHEDIT
 940     if ( IsRich() )
 941     {
 942         CHARRANGE range;
 943         range.cpMin = 0;
 944         range.cpMax = 0;
 945         SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range);
 946         return range.cpMin;
 947     }
 948 #endif // wxUSE_RICHEDIT
 949
 950     DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L);
 951     return Pos & 0xFFFF;
 952 }
 953
 954 long wxTextCtrl::GetLastPosition() const
 955 {
 956     int numLines = GetNumberOfLines();
 957     long posStartLastLine = XYToPosition(0, numLines - 1);
 958
 959     long lenLastLine = GetLengthOfLineContainingPos(posStartLastLine);
 960
 961     return posStartLastLine + lenLastLine;
 962 }
 963
 964 // If the return values from and to are the same, there is no
 965 // selection.
 966 void wxTextCtrl::GetSelection(long* from, long* to) const
 967 {
 968 #if wxUSE_RICHEDIT
 969     if ( IsRich() )
 970     {
 971         CHARRANGE charRange;
 972         ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &charRange);
 973
 974         *from = charRange.cpMin;
 975         *to = charRange.cpMax;
 976     }
 977     else
 978 #endif // !wxUSE_RICHEDIT
 979     {
 980         DWORD dwStart, dwEnd;
 981         ::SendMessage(GetHwnd(), EM_GETSEL, (WPARAM)&dwStart, (LPARAM)&dwEnd);
 982
 983         *from = dwStart;
 984         *to = dwEnd;
 985     }
 986 }
 987
 988 bool wxTextCtrl::IsEditable() const
 989 {
 990     // strangely enough, we may be called before the control is created: our
 991     // own Create() calls MSWGetStyle() which calls AcceptsFocus() which calls
 992     // us
 993     if ( !m_hWnd )
 994         return TRUE;
 995
 996     long style = ::GetWindowLong(GetHwnd(), GWL_STYLE);
 997
 998     return (style & ES_READONLY) == 0;
 999 }
1000
1001 // ----------------------------------------------------------------------------
1002 // selection
1003 // ----------------------------------------------------------------------------
1004
1005 void wxTextCtrl::SetSelection(long from, long to)
1006 {
1007     // if from and to are both -1, it means (in wxWindows) that all text should
1008     // be selected - translate into Windows convention
1009     if ( (from == -1) && (to == -1) )
1010     {
1011         from = 0;
1012         to = -1;
1013     }
1014
1015     DoSetSelection(from, to);
1016 }
1017
1018 void wxTextCtrl::DoSetSelection(long from, long to, bool scrollCaret)
1019 {
1020     HWND hWnd = GetHwnd();
1021
1022 #ifdef __WIN32__
1023 #if wxUSE_RICHEDIT
1024     if ( IsRich() )
1025     {
1026         CHARRANGE range;
1027         range.cpMin = from;
1028         range.cpMax = to;
1029         SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM) &range);
1030     }
1031     else
1032 #endif // wxUSE_RICHEDIT
1033     {
1034         SendMessage(hWnd, EM_SETSEL, (WPARAM)from, (LPARAM)to);
1035     }
1036
1037     if ( scrollCaret )
1038     {
1039 #if wxUSE_RICHEDIT
1040         // richedit 3.0 (i.e. the version living in riched20.dll distributed
1041         // with Windows 2000 and beyond) doesn't honour EM_SCROLLCARET when
1042         // emulating richedit 2.0 unless the control has focus or ECO_NOHIDESEL
1043         // option is set (but it does work ok in richedit 1.0 mode...)
1044         //
1045         // so to make it work we either need to give focus to it here which
1046         // will probably create many problems (dummy focus events; window
1047         // containing the text control being brought to foreground
1048         // unexpectedly; ...) or to temporarily set ECO_NOHIDESEL which may
1049         // create other problems too -- and in fact it does because if we turn
1050         // on/off this style while appending the text to the control, the
1051         // vertical scrollbar never appears in it even if we append tons of
1052         // text and to work around this the only solution I found was to use
1053         // ES_DISABLENOSCROLL
1054         //
1055         // this is very ugly but I don't see any other way to make this work
1056         if ( GetRichVersion() > 1 )
1057         {
1058             if ( !HasFlag(wxTE_NOHIDESEL) )
1059             {
1060                 ::SendMessage(GetHwnd(), EM_SETOPTIONS,
1061                               ECOOP_OR, ECO_NOHIDESEL);
1062             }
1063             //else: everything is already ok
1064         }
1065 #endif // wxUSE_RICHEDIT
1066
1067         SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
1068
1069 #if wxUSE_RICHEDIT
1070         // restore ECO_NOHIDESEL if we changed it
1071         if ( GetRichVersion() > 1 && !HasFlag(wxTE_NOHIDESEL) )
1072         {
1073             ::SendMessage(GetHwnd(), EM_SETOPTIONS,
1074                           ECOOP_AND, ~ECO_NOHIDESEL);
1075         }
1076 #endif // wxUSE_RICHEDIT
1077     }
1078 #else // Win16
1079     // WPARAM is 0: selection is scrolled into view
1080     SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(from, to));
1081 #endif // Win32/16
1082 }
1083
1084 // ----------------------------------------------------------------------------
1085 // Editing
1086 // ----------------------------------------------------------------------------
1087
1088 void wxTextCtrl::Replace(long from, long to, const wxString& value)
1089 {
1090     // Set selection and remove it
1091     DoSetSelection(from, to, FALSE /* don't scroll caret into view */);
1092
1093     SendMessage(GetHwnd(), EM_REPLACESEL,
1094 #ifdef __WIN32__
1095                 TRUE,
1096 #else
1097                 FALSE,
1098 #endif
1099                 (LPARAM)value.c_str());
1100 }
1101
1102 void wxTextCtrl::Remove(long from, long to)
1103 {
1104     Replace(from, to, _T(""));
1105 }
1106
1107 bool wxTextCtrl::LoadFile(const wxString& file)
1108 {
1109     if ( wxTextCtrlBase::LoadFile(file) )
1110     {
1111         // update the size limit if needed
1112         AdjustSpaceLimit();
1113
1114         return TRUE;
1115     }
1116
1117     return FALSE;
1118 }
1119
1120 bool wxTextCtrl::IsModified() const
1121 {
1122     return SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0;
1123 }
1124
1125 // Makes 'unmodified'
1126 void wxTextCtrl::DiscardEdits()
1127 {
1128     SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L);
1129 }
1130
1131 int wxTextCtrl::GetNumberOfLines() const
1132 {
1133     return (int)SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0);
1134 }
1135
1136 long wxTextCtrl::XYToPosition(long x, long y) const
1137 {
1138     // This gets the char index for the _beginning_ of this line
1139     long charIndex = SendMessage(GetHwnd(), EM_LINEINDEX, (WPARAM)y, (LPARAM)0);
1140
1141     return charIndex + x;
1142 }
1143
1144 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
1145 {
1146     HWND hWnd = GetHwnd();
1147
1148     // This gets the line number containing the character
1149     long lineNo;
1150 #if wxUSE_RICHEDIT
1151     if ( IsRich() )
1152     {
1153         lineNo = SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos);
1154     }
1155     else
1156 #endif // wxUSE_RICHEDIT
1157     {
1158         lineNo = SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0);
1159     }
1160
1161     if ( lineNo == -1 )
1162     {
1163         // no such line
1164         return FALSE;
1165     }
1166
1167     // This gets the char index for the _beginning_ of this line
1168     long charIndex = SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0);
1169     if ( charIndex == -1 )
1170     {
1171         return FALSE;
1172     }
1173
1174     // The X position must therefore be the different between pos and charIndex
1175     if ( x )
1176         *x = pos - charIndex;
1177     if ( y )
1178         *y = lineNo;
1179
1180     return TRUE;
1181 }
1182
1183 void wxTextCtrl::ShowPosition(long pos)
1184 {
1185     HWND hWnd = GetHwnd();
1186
1187     // To scroll to a position, we pass the number of lines and characters
1188     // to scroll *by*. This means that we need to:
1189     // (1) Find the line position of the current line.
1190     // (2) Find the line position of pos.
1191     // (3) Scroll by (pos - current).
1192     // For now, ignore the horizontal scrolling.
1193
1194     // Is this where scrolling is relative to - the line containing the caret?
1195     // Or is the first visible line??? Try first visible line.
1196 //    int currentLineLineNo1 = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)-1, (LPARAM)0L);
1197
1198     int currentLineLineNo = (int)SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (LPARAM)0L);
1199
1200     int specifiedLineLineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0L);
1201
1202     int linesToScroll = specifiedLineLineNo - currentLineLineNo;
1203
1204     if (linesToScroll != 0)
1205       (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll);
1206 }
1207
1208 long wxTextCtrl::GetLengthOfLineContainingPos(long pos) const
1209 {
1210     return ::SendMessage(GetHwnd(), EM_LINELENGTH, (WPARAM)pos, 0);
1211 }
1212
1213 int wxTextCtrl::GetLineLength(long lineNo) const
1214 {
1215     long pos = XYToPosition(0, lineNo);
1216
1217     return GetLengthOfLineContainingPos(pos);
1218 }
1219
1220 wxString wxTextCtrl::GetLineText(long lineNo) const
1221 {
1222     size_t len = (size_t)GetLineLength(lineNo) + 1;
1223
1224     // there must be at least enough place for the length WORD in the
1225     // buffer
1226     len += sizeof(WORD);
1227
1228     wxString str;
1229     wxChar *buf = str.GetWriteBuf(len);
1230
1231     *(WORD *)buf = (WORD)len;
1232     len = (size_t)::SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf);
1233     buf[len] = 0;
1234
1235     str.UngetWriteBuf(len);
1236
1237     return str;
1238 }
1239
1240 void wxTextCtrl::SetMaxLength(unsigned long len)
1241 {
1242     ::SendMessage(GetHwnd(), EM_LIMITTEXT, len, 0);
1243 }
1244
1245 // ----------------------------------------------------------------------------
1246 // Undo/redo
1247 // ----------------------------------------------------------------------------
1248
1249 void wxTextCtrl::Undo()
1250 {
1251     if (CanUndo())
1252     {
1253         ::SendMessage(GetHwnd(), EM_UNDO, 0, 0);
1254     }
1255 }
1256
1257 void wxTextCtrl::Redo()
1258 {
1259     if (CanRedo())
1260     {
1261         // Same as Undo, since Undo undoes the undo, i.e. a redo.
1262         ::SendMessage(GetHwnd(), EM_UNDO, 0, 0);
1263     }
1264 }
1265
1266 bool wxTextCtrl::CanUndo() const
1267 {
1268     return ::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0;
1269 }
1270
1271 bool wxTextCtrl::CanRedo() const
1272 {
1273     return ::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0;
1274 }
1275
1276 // ----------------------------------------------------------------------------
1277 // implemenation details
1278 // ----------------------------------------------------------------------------
1279
1280 void wxTextCtrl::Command(wxCommandEvent & event)
1281 {
1282     SetValue(event.GetString());
1283     ProcessCommand (event);
1284 }
1285
1286 void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event)
1287 {
1288     // By default, load the first file into the text window.
1289     if (event.GetNumberOfFiles() > 0)
1290     {
1291         LoadFile(event.GetFiles()[0]);
1292     }
1293 }
1294
1295 // ----------------------------------------------------------------------------
1296 // kbd input processing
1297 // ----------------------------------------------------------------------------
1298
1299 bool wxTextCtrl::MSWShouldPreProcessMessage(WXMSG* pMsg)
1300 {
1301     MSG *msg = (MSG *)pMsg;
1302
1303     // check for our special keys here: if we don't do it and the parent frame
1304     // uses them as accelerators, they wouldn't work at all, so we disable
1305     // usual preprocessing for them
1306     if ( msg->message == WM_KEYDOWN )
1307     {
1308         WORD vkey = (WORD) msg->wParam;
1309         if ( (HIWORD(msg->lParam) & KF_ALTDOWN) == KF_ALTDOWN )
1310         {
1311             if ( vkey == VK_BACK )
1312                 return FALSE;
1313         }
1314         else // no Alt
1315         {
1316             // we want to process some Ctrl-foo and Shift-bar but no key
1317             // combinations without either Ctrl or Shift nor with both of them
1318             // pressed
1319             const int ctrl = wxIsCtrlDown(),
1320                       shift = wxIsShiftDown();
1321             switch ( ctrl + shift )
1322             {
1323                 default:
1324                     wxFAIL_MSG( _T("how many modifiers have we got?") );
1325                     // fall through
1326
1327                 case 0:
1328                 case 2:
1329                     break;
1330
1331                 case 1:
1332                     // either Ctrl or Shift pressed
1333                     if ( ctrl )
1334                     {
1335                         switch ( vkey )
1336                         {
1337                             case 'C':
1338                             case 'V':
1339                             case 'X':
1340                             case VK_INSERT:
1341                             case VK_DELETE:
1342                             case VK_HOME:
1343                             case VK_END:
1344                                 return FALSE;
1345                         }
1346                     }
1347                     else // Shift is pressed
1348                     {
1349                         if ( vkey == VK_INSERT || vkey == VK_DELETE )
1350                             return FALSE;
1351                     }
1352             }
1353         }
1354     }
1355
1356     return wxControl::MSWShouldPreProcessMessage(pMsg);
1357 }
1358
1359 void wxTextCtrl::OnChar(wxKeyEvent& event)
1360 {
1361     switch ( event.KeyCode() )
1362     {
1363         case WXK_RETURN:
1364             if ( !(m_windowStyle & wxTE_MULTILINE) )
1365             {
1366                 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1367                 InitCommandEvent(event);
1368                 event.SetString(GetValue());
1369                 if ( GetEventHandler()->ProcessEvent(event) )
1370                     return;
1371             }
1372             //else: multiline controls need Enter for themselves
1373
1374             break;
1375
1376         case WXK_TAB:
1377             // always produce navigation event - even if we process TAB
1378             // ourselves the fact that we got here means that the user code
1379             // decided to skip processing of this TAB - probably to let it
1380             // do its default job.
1381             {
1382                 wxNavigationKeyEvent eventNav;
1383                 eventNav.SetDirection(!event.ShiftDown());
1384                 eventNav.SetWindowChange(event.ControlDown());
1385                 eventNav.SetEventObject(this);
1386
1387                 if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
1388                     return;
1389             }
1390             break;
1391     }
1392
1393     // no, we didn't process it
1394     event.Skip();
1395 }
1396
1397 long wxTextCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
1398 {
1399     long lRc = wxTextCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
1400
1401     if ( nMsg == WM_GETDLGCODE )
1402     {
1403         // we always want the chars and the arrows: the arrows for navigation
1404         // and the chars because we want Ctrl-C to work even in a read only
1405         // control
1406         long lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS;
1407
1408         if ( IsEditable() )
1409         {
1410             // we may have several different cases:
1411             // 1. normal case: both TAB and ENTER are used for dlg navigation
1412             // 2. ctrl which wants TAB for itself: ENTER is used to pass to the
1413             //    next control in the dialog
1414             // 3. ctrl which wants ENTER for itself: TAB is used for dialog
1415             //    navigation
1416             // 4. ctrl which wants both TAB and ENTER: Ctrl-ENTER is used to go
1417             //    to the next control
1418
1419             // the multiline edit control should always get <Return> for itself
1420             if ( HasFlag(wxTE_PROCESS_ENTER) || HasFlag(wxTE_MULTILINE) )
1421                 lDlgCode |= DLGC_WANTMESSAGE;
1422
1423             if ( HasFlag(wxTE_PROCESS_TAB) )
1424                 lDlgCode |= DLGC_WANTTAB;
1425
1426             lRc |= lDlgCode;
1427         }
1428         else // !editable
1429         {
1430             // NB: use "=", not "|=" as the base class version returns the
1431             //     same flags is this state as usual (i.e. including
1432             //     DLGC_WANTMESSAGE). This is strange (how does it work in the
1433             //     native Win32 apps?) but for now live with it.
1434             lRc = lDlgCode;
1435         }
1436     }
1437
1438     return lRc;
1439 }
1440
1441 // ----------------------------------------------------------------------------
1442 // text control event processing
1443 // ----------------------------------------------------------------------------
1444
1445 bool wxTextCtrl::SendUpdateEvent()
1446 {
1447     // is event reporting suspended?
1448     if ( m_suppressNextUpdate )
1449     {
1450         // do process the next one
1451         m_suppressNextUpdate = FALSE;
1452
1453         return FALSE;
1454     }
1455
1456     wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
1457     InitCommandEvent(event);
1458     event.SetString(GetValue());
1459
1460     return ProcessCommand(event);
1461 }
1462
1463 bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
1464 {
1465     switch ( param )
1466     {
1467         case EN_SETFOCUS:
1468         case EN_KILLFOCUS:
1469             {
1470                 wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
1471                                                          : wxEVT_SET_FOCUS,
1472                                    m_windowId);
1473                 event.SetEventObject(this);
1474                 GetEventHandler()->ProcessEvent(event);
1475             }
1476             break;
1477
1478         case EN_CHANGE:
1479             SendUpdateEvent();
1480             break;
1481
1482         case EN_MAXTEXT:
1483             // the text size limit has been hit -- try to increase it
1484             if ( !AdjustSpaceLimit() )
1485             {
1486                 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, m_windowId);
1487                 InitCommandEvent(event);
1488                 event.SetString(GetValue());
1489                 ProcessCommand(event);
1490             }
1491             break;
1492
1493             // the other edit notification messages are not processed
1494         default:
1495             return FALSE;
1496     }
1497
1498     // processed
1499     return TRUE;
1500 }
1501
1502 WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor),
1503 #if wxUSE_CTL3D
1504                                WXUINT message,
1505                                WXWPARAM wParam,
1506                                WXLPARAM lParam
1507 #else
1508                                WXUINT WXUNUSED(message),
1509                                WXWPARAM WXUNUSED(wParam),
1510                                WXLPARAM WXUNUSED(lParam)
1511 #endif
1512     )
1513 {
1514 #if wxUSE_CTL3D
1515     if ( m_useCtl3D )
1516     {
1517         HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
1518         return (WXHBRUSH) hbrush;
1519     }
1520 #endif // wxUSE_CTL3D
1521
1522     HDC hdc = (HDC)pDC;
1523     if (GetParent()->GetTransparentBackground())
1524         SetBkMode(hdc, TRANSPARENT);
1525     else
1526         SetBkMode(hdc, OPAQUE);
1527
1528     wxColour colBack = GetBackgroundColour();
1529
1530     if (!IsEnabled() && (GetWindowStyle() & wxTE_MULTILINE) == 0)
1531         colBack = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
1532
1533     ::SetBkColor(hdc, wxColourToRGB(colBack));
1534     ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
1535
1536     wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID);
1537
1538     return (WXHBRUSH)brush->GetResourceHandle();
1539 }
1540
1541 // In WIN16, need to override normal erasing because
1542 // Ctl3D doesn't use the wxWindows background colour.
1543 #ifdef __WIN16__
1544 void wxTextCtrl::OnEraseBackground(wxEraseEvent& event)
1545 {
1546     wxColour col(m_backgroundColour);
1547
1548 #if wxUSE_CTL3D
1549     if (m_useCtl3D)
1550         col = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
1551 #endif
1552
1553     RECT rect;
1554     ::GetClientRect(GetHwnd(), &rect);
1555
1556     COLORREF ref = wxColourToRGB(col);
1557     HBRUSH hBrush = ::CreateSolidBrush(ref);
1558     if ( !hBrush )
1559         wxLogLastError(wxT("CreateSolidBrush"));
1560
1561     HDC hdc = (HDC)event.GetDC()->GetHDC();
1562
1563     int mode = ::SetMapMode(hdc, MM_TEXT);
1564
1565     ::FillRect(hdc, &rect, hBrush);
1566     ::DeleteObject(hBrush);
1567     ::SetMapMode(hdc, mode);
1568
1569 }
1570 #endif // Win16
1571
1572 bool wxTextCtrl::AdjustSpaceLimit()
1573 {
1574 #ifndef __WIN16__
1575     unsigned int limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0);
1576
1577     // HACK: we try to automatically extend the limit for the amount of text
1578     //       to allow (interactively) entering more than 64Kb of text under
1579     //       Win9x but we shouldn't reset the text limit which was previously
1580     //       set explicitly with SetMaxLength()
1581     //
1582     //       we could solve this by storing the limit we set in wxTextCtrl but
1583     //       to save space we prefer to simply test here the actual limit
1584     //       value: we consider that SetMaxLength() can only be called for
1585     //       values < 32Kb
1586     if ( limit < 0x8000 )
1587     {
1588         // we've got more text than limit set by SetMaxLength()
1589         return FALSE;
1590     }
1591
1592     unsigned int len = ::GetWindowTextLength(GetHwnd());
1593     if ( len >= limit )
1594     {
1595         limit = len + 0x8000;    // 32Kb
1596
1597 #if wxUSE_RICHEDIT
1598         if ( IsRich() )
1599         {
1600             // as a nice side effect, this also allows passing limit > 64Kb
1601             ::SendMessage(GetHwnd(), EM_EXLIMITTEXT, 0, limit);
1602         }
1603         else
1604 #endif // wxUSE_RICHEDIT
1605         {
1606             if ( limit > 0xffff )
1607             {
1608                 // this will set it to a platform-dependent maximum (much more
1609                 // than 64Kb under NT)
1610                 limit = 0;
1611             }
1612
1613             ::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0);
1614         }
1615     }
1616 #endif // !Win16
1617
1618     // we changed the limit
1619     return TRUE;
1620 }
1621
1622 bool wxTextCtrl::AcceptsFocus() const
1623 {
1624     // we don't want focus if we can't be edited unless we're a multiline
1625     // control because then it might be still nice to get focus from keyboard
1626     // to be able to scroll it without mouse
1627     return (IsEditable() || IsMultiLine()) && wxControl::AcceptsFocus();
1628 }
1629
1630 wxSize wxTextCtrl::DoGetBestSize() const
1631 {
1632     int cx, cy;
1633     wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
1634
1635     int wText = DEFAULT_ITEM_WIDTH;
1636
1637     int hText = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
1638     if ( m_windowStyle & wxTE_MULTILINE )
1639     {
1640         hText *= wxMax(GetNumberOfLines(), 5);
1641     }
1642     //else: for single line control everything is ok
1643
1644     return wxSize(wText, hText);
1645 }
1646
1647 // ----------------------------------------------------------------------------
1648 // standard handlers for standard edit menu events
1649 // ----------------------------------------------------------------------------
1650
1651 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1652 {
1653     Cut();
1654 }
1655
1656 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1657 {
1658     Copy();
1659 }
1660
1661 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1662 {
1663     Paste();
1664 }
1665
1666 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1667 {
1668     Undo();
1669 }
1670
1671 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1672 {
1673     Redo();
1674 }
1675
1676 void wxTextCtrl::OnDelete(wxCommandEvent& event)
1677 {
1678     long from, to;
1679     GetSelection(& from, & to);
1680     if (from != -1 && to != -1)
1681         Remove(from, to);
1682 }
1683
1684 void wxTextCtrl::OnSelectAll(wxCommandEvent& event)
1685 {
1686     SetSelection(-1, -1);
1687 }
1688
1689 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1690 {
1691     event.Enable( CanCut() );
1692 }
1693
1694 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1695 {
1696     event.Enable( CanCopy() );
1697 }
1698
1699 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1700 {
1701     event.Enable( CanPaste() );
1702 }
1703
1704 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1705 {
1706     event.Enable( CanUndo() );
1707 }
1708
1709 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1710 {
1711     event.Enable( CanRedo() );
1712 }
1713
1714 void wxTextCtrl::OnUpdateDelete(wxUpdateUIEvent& event)
1715 {
1716     long from, to;
1717     GetSelection(& from, & to);
1718     event.Enable(from != -1 && to != -1 && from != to && IsEditable()) ;
1719 }
1720
1721 void wxTextCtrl::OnUpdateSelectAll(wxUpdateUIEvent& event)
1722 {
1723     event.Enable(GetLastPosition() > 0);
1724 }
1725
1726 void wxTextCtrl::OnRightClick(wxMouseEvent& event)
1727 {
1728 #if wxUSE_RICHEDIT
1729     if (IsRich())
1730     {
1731         if (!m_privateContextMenu)
1732         {
1733             m_privateContextMenu = new wxMenu;
1734             m_privateContextMenu->Append(wxID_UNDO, _("&Undo"));
1735             m_privateContextMenu->Append(wxID_REDO, _("&Redo"));
1736             m_privateContextMenu->AppendSeparator();
1737             m_privateContextMenu->Append(wxID_CUT, _("Cu&t"));
1738             m_privateContextMenu->Append(wxID_COPY, _("&Copy"));
1739             m_privateContextMenu->Append(wxID_PASTE, _("&Paste"));
1740             m_privateContextMenu->Append(wxID_CLEAR, _("&Delete"));
1741             m_privateContextMenu->AppendSeparator();
1742             m_privateContextMenu->Append(wxID_SELECTALL, _("Select &All"));
1743         }
1744         PopupMenu(m_privateContextMenu, event.GetPosition());
1745         return;
1746     }
1747     else
1748 #endif
1749     event.Skip();
1750 }
1751
1752 // the rest of the file only deals with the rich edit controls
1753 #if wxUSE_RICHEDIT
1754
1755 // ----------------------------------------------------------------------------
1756 // EN_LINK processing
1757 // ----------------------------------------------------------------------------
1758
1759 bool wxTextCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
1760 {
1761 #ifndef __WXWINE__
1762     NMHDR *hdr = (NMHDR* )lParam;
1763     switch ( hdr->code )
1764     {
1765        case EN_MSGFILTER:
1766             {
1767                 const MSGFILTER *msgf = (MSGFILTER *)lParam;
1768                 UINT msg = msgf->msg;
1769
1770                 // this is a bit crazy but richedit 1.0 sends us all mouse
1771                 // events _except_ WM_LBUTTONUP (don't ask me why) so we have
1772                 // generate the wxWin events for this message manually
1773                 //
1774                 // NB: in fact, this is still not totally correct as it does
1775                 //     send us WM_LBUTTONUP if the selection was cleared by the
1776                 //     last click -- so currently we get 2 events in this case,
1777                 //     but as I don't see any obvious way to check for this I
1778                 //     leave this code in place because it's still better than
1779                 //     not getting left up events at all
1780                 if ( msg == WM_LBUTTONUP )
1781                 {
1782                     WXUINT flags = msgf->wParam;
1783                     int x = GET_X_LPARAM(msgf->lParam),
1784                         y = GET_Y_LPARAM(msgf->lParam);
1785
1786                     HandleMouseEvent(msg, x, y, flags);
1787                 }
1788             }
1789
1790             // return TRUE to process the event (and FALSE to ignore it)
1791             return TRUE;
1792
1793         case EN_LINK:
1794             {
1795                 const ENLINK *enlink = (ENLINK *)hdr;
1796
1797                 switch ( enlink->msg )
1798                 {
1799                     case WM_SETCURSOR:
1800                         // ok, so it is hardcoded - do we really nee to
1801                         // customize it?
1802                         ::SetCursor(GetHcursorOf(wxCursor(wxCURSOR_HAND)));
1803                         *result = TRUE;
1804                         break;
1805
1806                     case WM_MOUSEMOVE:
1807                     case WM_LBUTTONDOWN:
1808                     case WM_LBUTTONUP:
1809                     case WM_LBUTTONDBLCLK:
1810                     case WM_RBUTTONDOWN:
1811                     case WM_RBUTTONUP:
1812                     case WM_RBUTTONDBLCLK:
1813                         // send a mouse event
1814                         {
1815                             static const wxEventType eventsMouse[] =
1816                             {
1817                                 wxEVT_MOTION,
1818                                 wxEVT_LEFT_DOWN,
1819                                 wxEVT_LEFT_UP,
1820                                 wxEVT_LEFT_DCLICK,
1821                                 wxEVT_RIGHT_DOWN,
1822                                 wxEVT_RIGHT_UP,
1823                                 wxEVT_RIGHT_DCLICK,
1824                             };
1825
1826                             // the event ids are consecutive
1827                             wxMouseEvent
1828                                 evtMouse(eventsMouse[enlink->msg - WM_MOUSEMOVE]);
1829
1830                             InitMouseEvent(evtMouse,
1831                                            GET_X_LPARAM(enlink->lParam),
1832                                            GET_Y_LPARAM(enlink->lParam),
1833                                            enlink->wParam);
1834
1835                             wxTextUrlEvent event(m_windowId, evtMouse,
1836                                                  enlink->chrg.cpMin,
1837                                                  enlink->chrg.cpMax);
1838
1839                             InitCommandEvent(event);
1840
1841                             *result = ProcessCommand(event);
1842                         }
1843                         break;
1844                 }
1845             }
1846             return TRUE;
1847     }
1848 #endif
1849
1850     // not processed, leave it to the base class
1851     return wxTextCtrlBase::MSWOnNotify(idCtrl, lParam, result);
1852 }
1853
1854 // ----------------------------------------------------------------------------
1855 // colour setting for the rich edit controls
1856 // ----------------------------------------------------------------------------
1857
1858 bool wxTextCtrl::SetBackgroundColour(const wxColour& colour)
1859 {
1860     if ( !wxTextCtrlBase::SetBackgroundColour(colour) )
1861     {
1862         // colour didn't really change
1863         return FALSE;
1864     }
1865
1866     if ( IsRich() )
1867     {
1868         // rich edit doesn't use WM_CTLCOLOR, hence we need to send
1869         // EM_SETBKGNDCOLOR additionally
1870         ::SendMessage(GetHwnd(), EM_SETBKGNDCOLOR, 0, wxColourToRGB(colour));
1871     }
1872
1873     return TRUE;
1874 }
1875
1876 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1877 {
1878     if ( !wxTextCtrlBase::SetForegroundColour(colour) )
1879     {
1880         // colour didn't really change
1881         return FALSE;
1882     }
1883
1884     if ( IsRich() )
1885     {
1886         // change the colour of everything
1887         CHARFORMAT cf;
1888         wxZeroMemory(cf);
1889         cf.cbSize = sizeof(cf);
1890         cf.dwMask = CFM_COLOR;
1891         cf.crTextColor = wxColourToRGB(colour);
1892         ::SendMessage(GetHwnd(), EM_SETCHARFORMAT, SCF_ALL, (LPARAM)&cf);
1893     }
1894
1895     return TRUE;
1896 }
1897
1898 // ----------------------------------------------------------------------------
1899 // styling support for rich edit controls
1900 // ----------------------------------------------------------------------------
1901
1902 #if wxUSE_RICHEDIT
1903
1904 bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
1905 {
1906 #ifdef __WXWINE__
1907     return FALSE;
1908 #else
1909     if ( !IsRich() )
1910     {
1911         // can't do it with normal text control
1912         return FALSE;
1913     }
1914
1915     // the richedit 1.0 doesn't handle setting background colour, so don't
1916     // even try to do anything if it's the only thing we want to change
1917     if ( m_verRichEdit == 1 && !style.HasFont() && !style.HasTextColour() )
1918     {
1919         // nothing to do: return TRUE if there was really nothing to do and
1920         // FALSE if we failed to set bg colour
1921         return !style.HasBackgroundColour();
1922     }
1923
1924     // order the range if needed
1925     if ( start > end )
1926     {
1927         long tmp = start;
1928         start = end;
1929         end = tmp;
1930     }
1931
1932     // we can only change the format of the selection, so select the range we
1933     // want and restore the old selection later
1934     long startOld, endOld;
1935     GetSelection(&startOld, &endOld);
1936
1937     // but do we really have to change the selection?
1938     bool changeSel = start != startOld || end != endOld;
1939
1940     if ( changeSel )
1941     {
1942         DoSetSelection(start, end, FALSE /* don't scroll caret into view */);
1943     }
1944
1945     // initialize CHARFORMAT struct
1946 #if wxUSE_RICHEDIT2
1947     CHARFORMAT2 cf;
1948 #else
1949     CHARFORMAT cf;
1950 #endif
1951
1952     wxZeroMemory(cf);
1953
1954     // we can't use CHARFORMAT2 with RichEdit 1.0, so pretend it is a simple
1955     // CHARFORMAT in that case
1956 #if wxUSE_RICHEDIT2
1957     if ( m_verRichEdit == 1 )
1958     {
1959         // this is the only thing the control is going to grok
1960         cf.cbSize = sizeof(CHARFORMAT);
1961     }
1962     else
1963 #endif
1964     {
1965         // CHARFORMAT or CHARFORMAT2
1966         cf.cbSize = sizeof(cf);
1967     }
1968
1969     if ( style.HasFont() )
1970     {
1971         // VZ: CFM_CHARSET doesn't seem to do anything at all in RichEdit 2.0
1972         //     but using it doesn't seem to hurt neither so leaving it for now
1973
1974         cf.dwMask |= CFM_FACE | CFM_SIZE | CFM_CHARSET |
1975                      CFM_ITALIC | CFM_BOLD | CFM_UNDERLINE;
1976
1977         // fill in data from LOGFONT but recalculate lfHeight because we need
1978         // the real height in twips and not the negative number which
1979         // wxFillLogFont() returns (this is correct in general and works with
1980         // the Windows font mapper, but not here)
1981         LOGFONT lf;
1982         wxFillLogFont(&lf, &style.GetFont());
1983         cf.yHeight = 20*style.GetFont().GetPointSize(); // 1 pt = 20 twips
1984         cf.bCharSet = lf.lfCharSet;
1985         cf.bPitchAndFamily = lf.lfPitchAndFamily;
1986         wxStrncpy( cf.szFaceName, lf.lfFaceName, WXSIZEOF(cf.szFaceName) );
1987
1988         // also deal with underline/italic/bold attributes: note that we must
1989         // always set CFM_ITALIC &c bits in dwMask, even if we don't set the
1990         // style to allow clearing it
1991         if ( lf.lfItalic )
1992         {
1993             cf.dwEffects |= CFE_ITALIC;
1994         }
1995
1996         if ( lf.lfWeight == FW_BOLD )
1997         {
1998             cf.dwEffects |= CFE_BOLD;
1999         }
2000
2001         if ( lf.lfUnderline )
2002         {
2003             cf.dwEffects |= CFE_UNDERLINE;
2004         }
2005
2006         // strikeout fonts are not supported by wxWindows
2007     }
2008
2009     if ( style.HasTextColour() )
2010     {
2011         cf.dwMask |= CFM_COLOR;
2012         cf.crTextColor = wxColourToRGB(style.GetTextColour());
2013     }
2014
2015 #if wxUSE_RICHEDIT2
2016     if ( m_verRichEdit != 1 && style.HasBackgroundColour() )
2017     {
2018         cf.dwMask |= CFM_BACKCOLOR;
2019         cf.crBackColor = wxColourToRGB(style.GetBackgroundColour());
2020     }
2021 #endif // wxUSE_RICHEDIT2
2022
2023     // do format the selection
2024     bool ok = ::SendMessage(GetHwnd(), EM_SETCHARFORMAT,
2025                             SCF_SELECTION, (LPARAM)&cf) != 0;
2026     if ( !ok )
2027     {
2028         wxLogDebug(_T("SendMessage(EM_SETCHARFORMAT, SCF_SELECTION) failed"));
2029     }
2030
2031     if ( changeSel )
2032     {
2033         // restore the original selection
2034         DoSetSelection(startOld, endOld, FALSE);
2035     }
2036
2037     return ok;
2038 #endif
2039 }
2040
2041 bool wxTextCtrl::SetDefaultStyle(const wxTextAttr& style)
2042 {
2043     if ( !wxTextCtrlBase::SetDefaultStyle(style) )
2044         return FALSE;
2045
2046     // we have to do this or the style wouldn't apply for the text typed by the
2047     // user
2048     long posLast = GetLastPosition();
2049     SetStyle(posLast, posLast, m_defaultStyle);
2050
2051     return TRUE;
2052 }
2053
2054 #endif
2055
2056 // ----------------------------------------------------------------------------
2057 // wxRichEditModule
2058 // ----------------------------------------------------------------------------
2059
2060 bool wxRichEditModule::OnInit()
2061 {
2062     // don't do anything - we will load it when needed
2063     return TRUE;
2064 }
2065
2066 void wxRichEditModule::OnExit()
2067 {
2068     for ( size_t i = 0; i < WXSIZEOF(ms_hRichEdit); i++ )
2069     {
2070         if ( ms_hRichEdit[i] )
2071         {
2072             ::FreeLibrary(ms_hRichEdit[i]);
2073         }
2074     }
2075 }
2076
2077 /* static */
2078 bool wxRichEditModule::Load(int version)
2079 {
2080     // we don't support loading richedit 3.0 as I don't know how to distinguish
2081     // it from 2.0 anyhow
2082     wxCHECK_MSG( version == 1 || version == 2, FALSE,
2083                  _T("incorrect richedit control version requested") );
2084
2085     // make it the index in the array
2086     version--;
2087
2088     if ( ms_hRichEdit[version] == (HINSTANCE)-1 )
2089     {
2090         // we had already tried to load it and failed
2091         return FALSE;
2092     }
2093
2094     if ( ms_hRichEdit[version] )
2095     {
2096         // we've already got this one
2097         return TRUE;
2098     }
2099
2100     wxString dllname = version ? _T("riched20") : _T("riched32");
2101     dllname += _T(".dll");
2102
2103     ms_hRichEdit[version] = ::LoadLibrary(dllname);
2104
2105     if ( !ms_hRichEdit[version] )
2106     {
2107         wxLogSysError(_("Could not load Rich Edit DLL '%s'"), dllname.c_str());
2108
2109         ms_hRichEdit[version] = (HINSTANCE)-1;
2110
2111         return FALSE;
2112     }
2113
2114     return TRUE;
2115 }
2116
2117 #endif // wxUSE_RICHEDIT
2118
2119 #endif // wxUSE_TEXTCTRL