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