src/os2/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        textctrl.cpp
   3 // Purpose:     wxTextCtrl
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/17/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ----------------------------------------------------------------------------
  13 // headers
  14 // ----------------------------------------------------------------------------
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/textctrl.h"
  21     #include "wx/settings.h"
  22     #include "wx/brush.h"
  23     #include "wx/utils.h"
  24     #include "wx/log.h"
  25 #endif
  26
  27 #if wxUSE_CLIPBOARD
  28     #include "wx/app.h"
  29     #include "wx/clipbrd.h"
  30 #endif
  31
  32 #include "wx/textfile.h"
  33
  34 #include "wx/os2/private.h"
  35
  36 #include <string.h>
  37 #include <stdlib.h>
  38 #include <sys/types.h>
  39
  40 #if wxUSE_IOSTREAMH
  41 #   include <fstream.h>
  42 #else
  43 #   include <fstream>
  44 #endif
  45
  46 #if !USE_SHARED_LIBRARY
  47
  48 // ----------------------------------------------------------------------------
  49 // event tables and other macros
  50 // ----------------------------------------------------------------------------
  51
  52 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl)
  53
  54 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
  55     EVT_CHAR(wxTextCtrl::OnChar)
  56     EVT_DROP_FILES(wxTextCtrl::OnDropFiles)
  57
  58     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
  59     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
  60     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
  61     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
  62     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
  63
  64     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
  65     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
  66     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
  67     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
  68     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
  69 END_EVENT_TABLE()
  70
  71 #endif // USE_SHARED_LIBRARY
  72
  73 // ============================================================================
  74 // implementation
  75 // ============================================================================
  76
  77 // ----------------------------------------------------------------------------
  78 // creation
  79 // ----------------------------------------------------------------------------
  80
  81 wxTextCtrl::wxTextCtrl()
  82 {
  83 }
  84
  85 bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,
  86                         const wxString& value,
  87                         const wxPoint& pos,
  88                         const wxSize& size,
  89                         long style,
  90 #if wxUSE_VALIDATORS
  91 #  if defined(__VISAGECPP__)
  92                         const wxValidator* validator,
  93 #  else
  94                         const wxValidator& validator,
  95 #  endif
  96 #endif
  97                         const wxString& name)
  98 {
  99     // base initialization
 100     if ( !CreateBase(parent, id, pos, size, style, validator, name) )
 101         return FALSE;
 102
 103     // Validator was set in CreateBase
 104     //SetValidator(validator);
 105     if ( parent )
 106         parent->AddChild(this);
 107
 108     // set colours
 109     SetupColours();
 110
 111     // translate wxWin style flags to MSW ones, checking for consistency while
 112     // doing it
 113 // TODO:
 114 /*
 115     long msStyle = ES_LEFT | WS_VISIBLE | WS_CHILD | WS_TABSTOP;
 116     if ( m_windowStyle & wxTE_MULTILINE )
 117     {
 118         wxASSERT_MSG( !(m_windowStyle & wxTE_PROCESS_ENTER),
 119                       wxT("wxTE_PROCESS_ENTER style is ignored for multiline "
 120                          "text controls (they always process it)") );
 121
 122         msStyle |= ES_MULTILINE | ES_WANTRETURN;
 123         if ((m_windowStyle & wxTE_NO_VSCROLL) == 0)
 124             msStyle |= WS_VSCROLL;
 125         m_windowStyle |= wxTE_PROCESS_ENTER;
 126     }
 127     else
 128         msStyle |= ES_AUTOHSCROLL;
 129
 130     if (m_windowStyle & wxHSCROLL)
 131         msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL);
 132
 133     if (m_windowStyle & wxTE_READONLY)
 134         msStyle |= ES_READONLY;
 135
 136     if (m_windowStyle & wxHSCROLL)
 137         msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL);
 138     if (m_windowStyle & wxTE_PASSWORD) // hidden input
 139         msStyle |= ES_PASSWORD;
 140
 141     // we always want the characters and the arrows
 142     m_lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS;
 143
 144     // we may have several different cases:
 145     // 1. normal case: both TAB and ENTER are used for dialog navigation
 146     // 2. ctrl which wants TAB for itself: ENTER is used to pass to the next
 147     //    control in the dialog
 148     // 3. ctrl which wants ENTER for itself: TAB is used for dialog navigation
 149     // 4. ctrl which wants both TAB and ENTER: Ctrl-ENTER is used to pass to
 150     //    the next control
 151     if ( m_windowStyle & wxTE_PROCESS_ENTER )
 152         m_lDlgCode |= DLGC_WANTMESSAGE;
 153     if ( m_windowStyle & wxTE_PROCESS_TAB )
 154         m_lDlgCode |= DLGC_WANTTAB;
 155
 156     // do create the control - either an EDIT or RICHEDIT
 157     const wxChar *windowClass = wxT("EDIT");
 158
 159     bool want3D;
 160     WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
 161
 162     // Even with extended styles, need to combine with WS_BORDER for them to
 163     // look right.
 164     if ( want3D || wxStyleHasBorder(m_windowStyle) )
 165         msStyle |= WS_BORDER;
 166
 167     // NB: don't use pos and size as CreateWindowEx arguments because they
 168     //     might be -1 in which case we should use the default values (and
 169     //     SetSize called below takes care of it)
 170     m_hWnd = (WXHWND)::CreateWindowEx(exStyle,
 171                                       windowClass,
 172                                       NULL,
 173                                       msStyle,
 174                                       0, 0, 0, 0,
 175                                       GetHwndOf(parent),
 176                                       (HMENU)m_windowId,
 177                                       wxGetInstance(),
 178                                       NULL);
 179
 180     wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create text ctrl") );
 181 */
 182     SubclassWin(GetHWND());
 183
 184     // set font, position, size and initial value
 185     wxFont& fontParent = parent->GetFont();
 186     if ( fontParent.Ok() )
 187     {
 188         SetFont(fontParent);
 189     }
 190     else
 191     {
 192         SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT));
 193     }
 194
 195     SetSize(pos.x, pos.y, size.x, size.y);
 196
 197     return TRUE;
 198 }
 199
 200 // Make sure the window style (etc.) reflects the HWND style (roughly)
 201 void wxTextCtrl::AdoptAttributesFromHWND()
 202 {
 203   wxWindow::AdoptAttributesFromHWND();
 204
 205   HWND hWnd = GetHwnd();
 206   // TODO:
 207   /*
 208   long style = GetWindowLong(hWnd, GWL_STYLE);
 209
 210   if (style & ES_MULTILINE)
 211     m_windowStyle |= wxTE_MULTILINE;
 212   if (style & ES_PASSWORD)
 213     m_windowStyle |= wxTE_PASSWORD;
 214   if (style & ES_READONLY)
 215     m_windowStyle |= wxTE_READONLY;
 216   if (style & ES_WANTRETURN)
 217     m_windowStyle |= wxTE_PROCESS_ENTER;
 218   */
 219 }
 220
 221 void wxTextCtrl::SetupColours()
 222 {
 223     // FIXME why is bg colour not inherited from parent?
 224     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
 225     SetForegroundColour(GetParent()->GetForegroundColour());
 226 }
 227
 228 // ----------------------------------------------------------------------------
 229 // set/get the controls text
 230 // ----------------------------------------------------------------------------
 231
 232 wxString wxTextCtrl::GetValue() const
 233 {
 234     return wxGetWindowText(GetHWND());
 235 }
 236
 237 void wxTextCtrl::SetValue(const wxString& value)
 238 {
 239 // TODO:
 240 /*
 241     wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);
 242
 243     SetWindowText(GetHwnd(), valueDos);
 244
 245     AdjustSpaceLimit();
 246 */
 247 }
 248
 249 void wxTextCtrl::WriteText(const wxString& value)
 250 {
 251 // TODO:
 252 /*
 253     wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);
 254
 255     SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str());
 256
 257     AdjustSpaceLimit();
 258 */
 259 }
 260
 261 void wxTextCtrl::AppendText(const wxString& text)
 262 {
 263 // TODO:
 264 /*
 265     SetInsertionPointEnd();
 266     WriteText(text);
 267 */
 268 }
 269
 270 void wxTextCtrl::Clear()
 271 {
 272 //    SetWindowText(GetHwnd(), wxT(""));
 273 }
 274
 275 // ----------------------------------------------------------------------------
 276 // Clipboard operations
 277 // ----------------------------------------------------------------------------
 278
 279 void wxTextCtrl::Copy()
 280 {
 281     if (CanCopy())
 282     {
 283         HWND hWnd = GetHwnd();
 284 //        SendMessage(hWnd, WM_COPY, 0, 0L);
 285     }
 286 }
 287
 288 void wxTextCtrl::Cut()
 289 {
 290     if (CanCut())
 291     {
 292         HWND hWnd = GetHwnd();
 293 //        SendMessage(hWnd, WM_CUT, 0, 0L);
 294     }
 295 }
 296
 297 void wxTextCtrl::Paste()
 298 {
 299     if (CanPaste())
 300     {
 301         HWND hWnd = GetHwnd();
 302 //        SendMessage(hWnd, WM_PASTE, 0, 0L);
 303     }
 304 }
 305
 306 bool wxTextCtrl::CanCopy() const
 307 {
 308     // Can copy if there's a selection
 309     long from, to;
 310 //    GetSelection(& from, & to);
 311     return (from != to);
 312 }
 313
 314 bool wxTextCtrl::CanCut() const
 315 {
 316     // Can cut if there's a selection
 317     long from, to;
 318 //    GetSelection(& from, & to);
 319     return (from != to);
 320 }
 321
 322 bool wxTextCtrl::CanPaste() const
 323 {
 324     if (!IsEditable())
 325         return FALSE;
 326
 327     // Standard edit control: check for straight text on clipboard
 328     bool isTextAvailable = FALSE;
 329 //TODO:
 330 /*
 331     if ( ::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) )
 332     {
 333         isTextAvailable = (::IsClipboardFormatAvailable(CF_TEXT) != 0);
 334         ::CloseClipboard();
 335     }
 336 */
 337     return isTextAvailable;
 338 }
 339
 340 // ----------------------------------------------------------------------------
 341 // Accessors
 342 // ----------------------------------------------------------------------------
 343
 344 void wxTextCtrl::SetEditable(bool editable)
 345 {
 346     HWND hWnd = GetHwnd();
 347 //    SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);
 348 }
 349
 350 void wxTextCtrl::SetInsertionPoint(long pos)
 351 {
 352 // TODO:
 353 /*
 354     HWND hWnd = GetHwnd();
 355     {
 356         SendMessage(hWnd, EM_SETSEL, pos, pos);
 357         SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
 358     }
 359     static const char *nothing = "";
 360     SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing);
 361 */
 362 }
 363
 364 void wxTextCtrl::SetInsertionPointEnd()
 365 {
 366 // TODO:
 367 /*
 368     long pos = GetLastPosition();
 369     SetInsertionPoint(pos);
 370 */
 371 }
 372
 373 long wxTextCtrl::GetInsertionPoint() const
 374 {
 375 // TODO:
 376 /*
 377     DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L);
 378     return Pos & 0xFFFF;
 379 */
 380     return 0;
 381 }
 382
 383 long wxTextCtrl::GetLastPosition() const
 384 {
 385     HWND hWnd = GetHwnd();
 386
 387 // TODO:
 388 /*
 389     // Will always return a number > 0 (according to docs)
 390     int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L);
 391
 392     // This gets the char index for the _beginning_ of the last line
 393     int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L);
 394
 395     // Get number of characters in the last line. We'll add this to the character
 396     // index for the last line, 1st position.
 397     int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L);
 398
 399     return (long)(charIndex + lineLength);
 400 */
 401     return 0L;
 402 }
 403
 404 // If the return values from and to are the same, there is no
 405 // selection.
 406 void wxTextCtrl::GetSelection(long* from, long* to) const
 407 {
 408     DWORD dwStart, dwEnd;
 409     MPARAM wParam = (MPARAM) (DWORD*) & dwStart; // receives starting position
 410     MPARAM lParam = (MPARAM) (DWORD*) & dwEnd;   // receives ending position
 411
 412 //    ::SendMessage(GetHwnd(), EM_GETSEL, wParam, lParam);
 413
 414     *from = dwStart;
 415     *to = dwEnd;
 416 }
 417
 418 bool wxTextCtrl::IsEditable() const
 419 {
 420 // TODO:
 421 /*
 422     long style = ::GetWindowLong(GetHwnd(), GWL_STYLE);
 423
 424     return ((style & ES_READONLY) == 0);
 425 */
 426     return FALSE;
 427 }
 428
 429 // ----------------------------------------------------------------------------
 430 // Editing
 431 // ----------------------------------------------------------------------------
 432
 433 void wxTextCtrl::Replace(long from, long to, const wxString& value)
 434 {
 435 #if wxUSE_CLIPBOARD
 436     HWND hWnd = GetHwnd();
 437     long fromChar = from;
 438     long toChar = to;
 439
 440     // Set selection and remove it
 441 //    SendMessage(hWnd, EM_SETSEL, fromChar, toChar);
 442 //    SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
 443
 444     // Now replace with 'value', by pasting.
 445     wxSetClipboardData(wxDF_TEXT, (wxObject *) (const wxChar *)value, 0, 0);
 446
 447     // Paste into edit control
 448 //    SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L);
 449 #else
 450     wxFAIL_MSG("wxTextCtrl::Replace not implemented if wxUSE_CLIPBOARD is 0.");
 451 #endif
 452 }
 453
 454 void wxTextCtrl::Remove(long from, long to)
 455 {
 456     HWND hWnd = GetHwnd();
 457     long fromChar = from;
 458     long toChar = to;
 459
 460     // Cut all selected text
 461 //    SendMessage(hWnd, EM_SETSEL, fromChar, toChar);
 462 //    SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
 463 }
 464
 465 void wxTextCtrl::SetSelection(long from, long to)
 466 {
 467     HWND hWnd = GetHwnd();
 468     long fromChar = from;
 469     long toChar = to;
 470
 471     // if from and to are both -1, it means (in wxWindows) that all text should
 472     // be selected. Translate into Windows convention
 473     if ((from == -1) && (to == -1))
 474     {
 475       fromChar = 0;
 476       toChar = -1;
 477     }
 478
 479 //    SendMessage(hWnd, EM_SETSEL, (WPARAM)fromChar, (LPARAM)toChar);
 480 //    SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
 481 }
 482
 483 bool wxTextCtrl::LoadFile(const wxString& file)
 484 {
 485 // TODO:
 486 /*
 487     if ( wxTextCtrlBase::LoadFile(file) )
 488     {
 489         // update the size limit if needed
 490         AdjustSpaceLimit();
 491
 492         return TRUE;
 493     }
 494 */
 495     return FALSE;
 496 }
 497
 498 bool wxTextCtrl::IsModified() const
 499 {
 500 //    return (SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0);
 501     return FALSE;
 502 }
 503
 504 // Makes 'unmodified'
 505 void wxTextCtrl::DiscardEdits()
 506 {
 507 //    SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L);
 508 }
 509
 510 int wxTextCtrl::GetNumberOfLines() const
 511 {
 512 //    return (int)SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0);
 513     return 0;
 514 }
 515
 516 long wxTextCtrl::XYToPosition(long x, long y) const
 517 {
 518     HWND hWnd = GetHwnd();
 519
 520     // This gets the char index for the _beginning_ of this line
 521 // TODO:
 522 /*
 523     int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)y, (LPARAM)0);
 524     return (long)(x + charIndex);
 525 */
 526     return 0L;
 527 }
 528
 529 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
 530 {
 531     HWND hWnd = GetHwnd();
 532
 533     // This gets the line number containing the character
 534     int lineNo;
 535 //    lineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0);
 536
 537     if ( lineNo == -1 )
 538     {
 539         // no such line
 540         return FALSE;
 541     }
 542
 543     // This gets the char index for the _beginning_ of this line
 544     int charIndex = 0; // TODO: (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0);
 545     if ( charIndex == -1 )
 546     {
 547         return FALSE;
 548     }
 549
 550     // The X position must therefore be the different between pos and charIndex
 551     if ( x )
 552         *x = (long)(pos - charIndex);
 553     if ( y )
 554         *y = (long)lineNo;
 555
 556     return TRUE;
 557 }
 558
 559 void wxTextCtrl::ShowPosition(long pos)
 560 {
 561     HWND hWnd = GetHwnd();
 562
 563     // To scroll to a position, we pass the number of lines and characters
 564     // to scroll *by*. This means that we need to:
 565     // (1) Find the line position of the current line.
 566     // (2) Find the line position of pos.
 567     // (3) Scroll by (pos - current).
 568     // For now, ignore the horizontal scrolling.
 569
 570     // Is this where scrolling is relative to - the line containing the caret?
 571     // Or is the first visible line??? Try first visible line.
 572 //    int currentLineLineNo1 = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)-1, (LPARAM)0L);
 573
 574 // TODO:
 575 /*
 576     int currentLineLineNo = (int)SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (LPARAM)0L);
 577
 578     int specifiedLineLineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0L);
 579
 580     int linesToScroll = specifiedLineLineNo - currentLineLineNo;
 581
 582     if (linesToScroll != 0)
 583       (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll);
 584 */
 585 }
 586
 587 int wxTextCtrl::GetLineLength(long lineNo) const
 588 {
 589 // TODO:
 590 /*
 591
 592     long charIndex = XYToPosition(0, lineNo);
 593     int len = (int)SendMessage(GetHwnd(), EM_LINELENGTH, charIndex, 0);
 594     return len;
 595 */
 596     return 0;
 597 }
 598
 599 wxString wxTextCtrl::GetLineText(long lineNo) const
 600 {
 601     size_t len = (size_t)GetLineLength(lineNo) + 1;
 602     char *buf = (char *)malloc(len);
 603     *(WORD *)buf = len;
 604     int noChars = 0; // TODO:(int)SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf);
 605     buf[noChars] = 0;
 606
 607     wxString str(buf);
 608
 609     free(buf);
 610
 611     return str;
 612 }
 613
 614 // ----------------------------------------------------------------------------
 615 // Undo/redo
 616 // ----------------------------------------------------------------------------
 617
 618 void wxTextCtrl::Undo()
 619 {
 620     if (CanUndo())
 621     {
 622 //        ::SendMessage(GetHwnd(), EM_UNDO, 0, 0);
 623     }
 624 }
 625
 626 void wxTextCtrl::Redo()
 627 {
 628     if (CanRedo())
 629     {
 630         // Same as Undo, since Undo undoes the undo, i.e. a redo.
 631 //        ::SendMessage(GetHwnd(), EM_UNDO, 0, 0);
 632     }
 633 }
 634
 635 bool wxTextCtrl::CanUndo() const
 636 {
 637 //    return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0);
 638     return FALSE;
 639 }
 640
 641 bool wxTextCtrl::CanRedo() const
 642 {
 643 //    return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0);
 644     return FALSE;
 645 }
 646
 647 // ----------------------------------------------------------------------------
 648 // implemenation details
 649 // ----------------------------------------------------------------------------
 650
 651 void wxTextCtrl::Command(wxCommandEvent & event)
 652 {
 653     SetValue(event.GetString());
 654     ProcessCommand (event);
 655 }
 656
 657 void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event)
 658 {
 659     // By default, load the first file into the text window.
 660     if (event.GetNumberOfFiles() > 0)
 661     {
 662         LoadFile(event.GetFiles()[0]);
 663     }
 664 }
 665
 666 WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
 667                                 WXUINT message, WXWPARAM wParam,
 668                                 WXLPARAM lParam)
 669 {
 670     HDC hdc = (HDC)pDC;
 671 // TODO:
 672 /*
 673     SetBkMode(hdc, GetParent()->GetTransparentBackground() ? TRANSPARENT
 674                                                            : OPAQUE);
 675
 676     ::SetBkColor(hdc, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
 677     ::SetTextColor(hdc, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
 678 */
 679     wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
 680
 681     return (WXHBRUSH) backgroundBrush->GetResourceHandle();
 682 }
 683
 684 void wxTextCtrl::OnChar(wxKeyEvent& event)
 685 {
 686     switch ( event.KeyCode() )
 687     {
 688 // TODO:
 689 /*
 690         case WXK_RETURN:
 691             if ( !(m_windowStyle & wxTE_MULTILINE) )
 692             {
 693                 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 694                 event.SetEventObject( this );
 695                 if ( GetEventHandler()->ProcessEvent(event) )
 696                     return;
 697             }
 698             //else: multiline controls need Enter for themselves
 699
 700             break;
 701
 702         case WXK_TAB:
 703             // always produce navigation event - even if we process TAB
 704             // ourselves the fact that we got here means that the user code
 705             // decided to skip processing of this TAB - probably to let it
 706             // do its default job.
 707             //
 708             // NB: Notice that Ctrl-Tab is handled elsewhere and Alt-Tab is
 709             //     handled by Windows
 710             {
 711                 wxNavigationKeyEvent eventNav;
 712                 eventNav.SetDirection(!event.ShiftDown());
 713                 eventNav.SetWindowChange(FALSE);
 714                 eventNav.SetEventObject(this);
 715
 716                 if ( GetEventHandler()->ProcessEvent(eventNav) )
 717                     return;
 718             }
 719             break;
 720 */
 721         default:
 722             event.Skip();
 723             return;
 724     }
 725
 726     // don't just call event.Skip() because this will cause TABs and ENTERs
 727     // be passed upwards and we don't always want this - instead process it
 728     // right here
 729
 730     // FIXME
 731     event.Skip();
 732 }
 733
 734 bool wxTextCtrl::OS2Command(WXUINT param, WXWORD WXUNUSED(id))
 735 {
 736     switch (param)
 737     {
 738 // TODO:
 739 /*
 740         case EN_SETFOCUS:
 741         case EN_KILLFOCUS:
 742             {
 743                 wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
 744                         : wxEVT_SET_FOCUS,
 745                         m_windowId);
 746                 event.SetEventObject( this );
 747                 GetEventHandler()->ProcessEvent(event);
 748             }
 749             break;
 750
 751         case EN_CHANGE:
 752             {
 753                 wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
 754                 wxString val(GetValue());
 755                 if ( !val.IsNull() )
 756                     event.m_commandString = WXSTRINGCAST val;
 757                 event.SetEventObject( this );
 758                 ProcessCommand(event);
 759             }
 760             break;
 761
 762         case EN_ERRSPACE:
 763             // the text size limit has been hit - increase it
 764             AdjustSpaceLimit();
 765             break;
 766
 767             // the other notification messages are not processed
 768         case EN_UPDATE:
 769         case EN_MAXTEXT:
 770         case EN_HSCROLL:
 771         case EN_VSCROLL:
 772 */
 773         default:
 774             return FALSE;
 775     }
 776
 777     // processed
 778     return TRUE;
 779 }
 780
 781 void wxTextCtrl::AdjustSpaceLimit()
 782 {
 783 // TODO:
 784 /*
 785     unsigned int len = ::GetWindowTextLength(GetHwnd()),
 786     limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0);
 787     if ( len > limit )
 788     {
 789         limit = len + 0x8000;    // 32Kb
 790
 791         if ( limit > 0xffff )
 792             ::SendMessage(GetHwnd(), EM_LIMITTEXT, 0, limit);
 793         else
 794             ::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0);
 795     }
 796 */
 797 }
 798
 799 bool wxTextCtrl::AcceptsFocus() const
 800 {
 801     // we don't want focus if we can't be edited
 802     return IsEditable() && wxControl::AcceptsFocus();
 803 }
 804
 805 wxSize wxTextCtrl::DoGetBestSize()
 806 {
 807     int cx, cy;
 808     wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
 809
 810     int wText = DEFAULT_ITEM_WIDTH;
 811
 812     int hText = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
 813     if ( m_windowStyle & wxTE_MULTILINE )
 814     {
 815         hText *= wxMin(GetNumberOfLines(), 5);
 816     }
 817     //else: for single line control everything is ok
 818
 819     return wxSize(wText, hText);
 820 }
 821
 822 // ----------------------------------------------------------------------------
 823 // standard handlers for standard edit menu events
 824 // ----------------------------------------------------------------------------
 825
 826 void wxTextCtrl::OnCut(wxCommandEvent& event)
 827 {
 828     Cut();
 829 }
 830
 831 void wxTextCtrl::OnCopy(wxCommandEvent& event)
 832 {
 833     Copy();
 834 }
 835
 836 void wxTextCtrl::OnPaste(wxCommandEvent& event)
 837 {
 838     Paste();
 839 }
 840
 841 void wxTextCtrl::OnUndo(wxCommandEvent& event)
 842 {
 843     Undo();
 844 }
 845
 846 void wxTextCtrl::OnRedo(wxCommandEvent& event)
 847 {
 848     Redo();
 849 }
 850
 851 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
 852 {
 853     event.Enable( CanCut() );
 854 }
 855
 856 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
 857 {
 858     event.Enable( CanCopy() );
 859 }
 860
 861 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
 862 {
 863     event.Enable( CanPaste() );
 864 }
 865
 866 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
 867 {
 868     event.Enable( CanUndo() );
 869 }
 870
 871 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
 872 {
 873     event.Enable( CanRedo() );
 874 }
 875