src/gtk1/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        textctrl.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "textctrl.h"
  12 #endif
  13
  14 #include "wx/textctrl.h"
  15 #include "wx/utils.h"
  16 #include "wx/intl.h"
  17 #include "wx/settings.h"
  18
  19 #include <sys/types.h>
  20 #include <sys/stat.h>
  21 #include <ctype.h>
  22
  23 #include "gdk/gdk.h"
  24 #include "gtk/gtk.h"
  25 #include "gdk/gdkkeysyms.h"
  26
  27 //-----------------------------------------------------------------------------
  28 // data
  29 //-----------------------------------------------------------------------------
  30
  31 extern bool   g_blockEventsOnDrag;
  32
  33 //-----------------------------------------------------------------------------
  34 //  "changed"
  35 //-----------------------------------------------------------------------------
  36
  37 static void
  38 gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
  39 {
  40     win->SetModified();
  41
  42     win->CalculateScrollbar();
  43
  44     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->m_windowId );
  45     event.SetString( copystring(win->GetValue()) );
  46     event.SetEventObject( win );
  47     win->GetEventHandler()->ProcessEvent( event );
  48     delete[] event.GetString();
  49 }
  50
  51 //-----------------------------------------------------------------------------
  52 // "size_allocate"
  53 //-----------------------------------------------------------------------------
  54
  55 static void
  56 gtk_text_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* WXUNUSED(alloc), wxTextCtrl *win )
  57 {
  58     win->CalculateScrollbar();
  59 }
  60
  61 //-----------------------------------------------------------------------------
  62 //  wxTextCtrl
  63 //-----------------------------------------------------------------------------
  64
  65 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
  66
  67 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
  68     EVT_CHAR(wxTextCtrl::OnChar)
  69 END_EVENT_TABLE()
  70
  71 #ifndef NO_TEXT_WINDOW_STREAM
  72 wxTextCtrl::wxTextCtrl() : streambuf()
  73 {
  74     if (allocate()) setp(base(),ebuf());
  75
  76     m_modified = FALSE;
  77 }
  78 #else
  79 wxTextCtrl::wxTextCtrl()
  80 {
  81     m_modified = FALSE;
  82 }
  83 #endif
  84
  85 #ifndef NO_TEXT_WINDOW_STREAM
  86 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
  87       const wxPoint &pos, const wxSize &size,
  88       int style, const wxValidator& validator, const wxString &name ) : streambuf()
  89 {
  90     if (allocate()) setp(base(),ebuf());
  91
  92     m_modified = FALSE;
  93     Create( parent, id, value, pos, size, style, validator, name );
  94 }
  95 #else
  96 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
  97       const wxPoint &pos, const wxSize &size,
  98       int style, const wxValidator& validator, const wxString &name )
  99 {
 100     m_modified = FALSE;
 101     Create( parent, id, value, pos, size, style, validator, name );
 102 }
 103 #endif
 104
 105 bool wxTextCtrl::Create( wxWindow *parent, wxWindowID id, const wxString &value,
 106       const wxPoint &pos, const wxSize &size,
 107       int style, const wxValidator& validator, const wxString &name )
 108 {
 109     m_needParent = TRUE;
 110     m_acceptsFocus = TRUE;
 111
 112     PreCreation( parent, id, pos, size, style, name );
 113
 114     SetValidator( validator );
 115
 116     m_vScrollbarVisible = TRUE;
 117
 118     bool multi_line = (style & wxTE_MULTILINE) != 0;
 119     if ( multi_line )
 120     {
 121         // a multi-line edit control: create a vertical scrollbar by default and
 122         // horizontal if requested
 123         bool bHasHScrollbar = (style & wxHSCROLL) != 0;
 124
 125         // create our control...
 126         m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
 127
 128         // ... and put into the upper left hand corner of the table
 129         m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
 130         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 131                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 132                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 133                        0, 0);
 134
 135         // put the horizontal scrollbar in the lower left hand corner
 136         if (bHasHScrollbar)
 137         {
 138             GtkWidget *hscrollbar = gtk_hscrollbar_new(GTK_TEXT(m_text)->hadj);
 139             gtk_table_attach(GTK_TABLE(m_widget), hscrollbar, 0, 1, 1, 2,
 140                        (GtkAttachOptions)(GTK_EXPAND | GTK_FILL),
 141                        GTK_FILL,
 142                        0, 0);
 143             gtk_widget_show(hscrollbar);
 144         }
 145
 146         // finally, put the vertical scrollbar in the upper right corner
 147         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 148         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 149                      GTK_FILL,
 150                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 151                      0, 0);
 152         gtk_widget_show( m_vScrollbar );
 153
 154         gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
 155           GTK_SIGNAL_FUNC(gtk_text_size_callback), (gpointer)this );
 156     }
 157     else
 158     {
 159         // a single-line text control: no need for scrollbars
 160         m_widget =
 161           m_text = gtk_entry_new();
 162     }
 163
 164     wxSize newSize = size;
 165     if (newSize.x == -1) newSize.x = 80;
 166     if (newSize.y == -1) newSize.y = 26;
 167     SetSize( newSize.x, newSize.y );
 168
 169     m_parent->AddChild( this );
 170
 171     (m_parent->m_insertCallback)( m_parent, this );
 172
 173     PostCreation();
 174
 175     if (multi_line)
 176     {
 177         gtk_widget_realize(m_text);
 178         gtk_widget_show(m_text);
 179     }
 180
 181     // we want to be notified about text changes
 182     gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 183       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 184
 185     if (!value.IsNull())
 186     {
 187         gint tmp = 0;
 188         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 189         SetInsertionPointEnd();
 190     }
 191
 192     if (style & wxTE_PASSWORD)
 193     {
 194         if (!multi_line)
 195             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 196     }
 197
 198     if (style & wxTE_READONLY)
 199     {
 200         if (!multi_line)
 201             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 202     }
 203     else
 204     {
 205         if (multi_line)
 206             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 207     }
 208
 209     Show( TRUE );
 210
 211     SetBackgroundColour( parent->GetBackgroundColour() );
 212     SetForegroundColour( parent->GetForegroundColour() );
 213
 214     return TRUE;
 215 }
 216
 217 void wxTextCtrl::CalculateScrollbar()
 218 {
 219     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 220
 221     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 222
 223     if (adj->upper - adj->page_size < 0.8)
 224     {
 225         if (m_vScrollbarVisible)
 226         {
 227         gtk_widget_hide( m_vScrollbar );
 228
 229         m_vScrollbarVisible = FALSE;
 230         }
 231     }
 232     else
 233     {
 234         if (!m_vScrollbarVisible)
 235         {
 236         gtk_widget_show( m_vScrollbar );
 237
 238         m_vScrollbarVisible = TRUE;
 239         }
 240     }
 241 }
 242
 243 wxString wxTextCtrl::GetValue() const
 244 {
 245     wxCHECK_MSG( m_text != NULL, "", "invalid text ctrl" );
 246
 247     wxString tmp;
 248     if (m_windowStyle & wxTE_MULTILINE)
 249     {
 250         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 251         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 252         tmp = text;
 253         g_free( text );
 254     }
 255     else
 256     {
 257         tmp = gtk_entry_get_text( GTK_ENTRY(m_text) );
 258     }
 259     return tmp;
 260 }
 261
 262 void wxTextCtrl::SetValue( const wxString &value )
 263 {
 264     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 265
 266     wxString tmp = "";
 267     if (!value.IsNull()) tmp = value;
 268     if (m_windowStyle & wxTE_MULTILINE)
 269     {
 270         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 271         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 272         len = 0;
 273         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmp, tmp.Length(), &len );
 274     }
 275     else
 276     {
 277         gtk_entry_set_text( GTK_ENTRY(m_text), tmp );
 278     }
 279 }
 280
 281 void wxTextCtrl::WriteText( const wxString &text )
 282 {
 283     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 284
 285     if (text.IsNull()) return;
 286
 287     if (m_windowStyle & wxTE_MULTILINE)
 288     {
 289         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 290         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 291     }
 292     else
 293     {
 294         gtk_entry_append_text( GTK_ENTRY(m_text), text );
 295     }
 296 }
 297
 298 bool wxTextCtrl::LoadFile( const wxString &file )
 299 {
 300   wxCHECK_MSG( m_text != NULL, FALSE, "invalid text ctrl" );
 301
 302   if (!wxFileExists(file)) return FALSE;
 303
 304   Clear();
 305
 306   FILE *fp = (FILE*) NULL;
 307   struct stat statb;
 308
 309   if ((stat ((char*) (const char*) file, &statb) == -1) || (statb.st_mode & S_IFMT) != S_IFREG ||
 310       !(fp = fopen ((char*) (const char*) file, "r")))
 311   {
 312       return FALSE;
 313   }
 314   else
 315   {
 316     gint len = statb.st_size;
 317     char *text;
 318     if (!(text = (char*)malloc ((unsigned) (len + 1))))
 319     {
 320       fclose (fp);
 321       return FALSE;
 322     }
 323     if (fread (text, sizeof (char), len, fp) != (size_t) len)
 324     {
 325     }
 326     fclose (fp);
 327
 328     text[len] = 0;
 329
 330     if (m_windowStyle & wxTE_MULTILINE)
 331     {
 332       gint pos = 0;
 333       gtk_editable_insert_text( GTK_EDITABLE(m_text), text, len, &pos );
 334     }
 335     else
 336     {
 337       gtk_entry_set_text( GTK_ENTRY(m_text), text );
 338     }
 339
 340     free (text);
 341     m_modified = FALSE;
 342     return TRUE;
 343   }
 344   return FALSE;
 345 }
 346
 347 bool wxTextCtrl::SaveFile( const wxString &file )
 348 {
 349   wxCHECK_MSG( m_text != NULL, FALSE, "invalid text ctrl" );
 350
 351   if (file == "") return FALSE;
 352
 353   FILE *fp;
 354
 355   if (!(fp = fopen ((char*) (const char*) file, "w")))
 356     {
 357       return FALSE;
 358     }
 359   else
 360     {
 361       char *text = (char*) NULL;
 362       gint len = 0;
 363
 364       if (m_windowStyle & wxTE_MULTILINE)
 365       {
 366         len = gtk_text_get_length( GTK_TEXT(m_text) );
 367         text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 368       }
 369       else
 370       {
 371         text = gtk_entry_get_text( GTK_ENTRY(m_text) );
 372       }
 373
 374       if (fwrite (text, sizeof (char), len, fp) != (size_t) len)
 375     {
 376       // Did not write whole file
 377     }
 378
 379       // Make sure newline terminates the file
 380       if (text[len - 1] != '\n')
 381     fputc ('\n', fp);
 382
 383       fclose (fp);
 384
 385       if (m_windowStyle & wxTE_MULTILINE) g_free( text );
 386
 387       m_modified = FALSE;
 388       return TRUE;
 389     }
 390
 391   return TRUE;
 392 }
 393
 394 wxString wxTextCtrl::GetLineText( long lineNo ) const
 395 {
 396   if (m_windowStyle & wxTE_MULTILINE)
 397   {
 398     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 399     char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 400
 401     if (text)
 402     {
 403         wxString buf("");
 404         long i;
 405         int currentLine = 0;
 406         for (i = 0; currentLine != lineNo && text[i]; i++ )
 407           if (text[i] == '\n')
 408             currentLine++;
 409         // Now get the text
 410         int j;
 411         for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
 412             buf += text[i];
 413
 414         g_free( text );
 415         return buf;
 416     }
 417     else
 418       return wxEmptyString;
 419   }
 420   else
 421   {
 422     if (lineNo == 0) return GetValue();
 423     return wxEmptyString;
 424   }
 425 }
 426
 427 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 428 {
 429     wxFAIL_MSG( "wxTextCtrl::OnDropFiles not implemented" );
 430 }
 431
 432 long wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 433 {
 434   if (!(m_windowStyle & wxTE_MULTILINE))
 435     return 0;
 436   gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 437   char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 438   if(!text)
 439     return 0;
 440   if( pos >= len)
 441     return pos=len-1;
 442
 443   *x=1;   // Col 1
 444   *y=1;   // Line 1
 445   for (int i = 0; i < pos; i++ )
 446     {
 447       if (text[i] == '\n')
 448     {
 449       (*y)++;
 450       *x=1;
 451     }
 452       else
 453     (*x)++;
 454     }
 455   g_free( text );
 456   return 1;
 457 }
 458
 459 long wxTextCtrl::XYToPosition(long x, long y ) const
 460 {
 461     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 462
 463     long pos=0;
 464
 465     for( int i=1; i<y; i++ ) pos += GetLineLength(i);
 466
 467     pos +=x-1; // Pos start with 0
 468     return pos;
 469 }
 470
 471 int wxTextCtrl::GetLineLength(long lineNo) const
 472 {
 473     wxString str = GetLineText (lineNo);
 474     return (int) str.Length();
 475 }
 476
 477 int wxTextCtrl::GetNumberOfLines() const
 478 {
 479     if (m_windowStyle & wxTE_MULTILINE)
 480     {
 481         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 482         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 483
 484         if (text)
 485         {
 486             int currentLine = 0;
 487             for (int i = 0; i < len; i++ )
 488         {
 489                 if (text[i] == '\n')
 490                   currentLine++;
 491         }
 492             g_free( text );
 493             return currentLine;
 494         }
 495         else
 496     {
 497             return 0;
 498     }
 499     }
 500     else
 501     {
 502        return 1;
 503     }
 504 }
 505
 506 void wxTextCtrl::SetInsertionPoint( long pos )
 507 {
 508     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 509
 510     int tmp = (int) pos;
 511     if (m_windowStyle & wxTE_MULTILINE)
 512         gtk_text_set_point( GTK_TEXT(m_text), tmp );
 513     else
 514         gtk_entry_set_position( GTK_ENTRY(m_text), tmp );
 515 }
 516
 517 void wxTextCtrl::SetInsertionPointEnd()
 518 {
 519     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 520
 521     SetInsertionPoint(-1);
 522 }
 523
 524 void wxTextCtrl::SetEditable( bool editable )
 525 {
 526     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 527
 528     if (m_windowStyle & wxTE_MULTILINE)
 529         gtk_text_set_editable( GTK_TEXT(m_text), editable );
 530     else
 531         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 532 }
 533
 534 void wxTextCtrl::SetSelection( long from, long to )
 535 {
 536     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 537
 538     gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 539 }
 540
 541 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 542 {
 543     wxFAIL_MSG( "wxTextCtrl::ShowPosition not implemented" );
 544 }
 545
 546 long wxTextCtrl::GetInsertionPoint() const
 547 {
 548     wxCHECK_MSG( m_text != NULL, 0, "invalid text ctrl" );
 549
 550     return (long) GTK_EDITABLE(m_text)->current_pos;
 551 }
 552
 553 long wxTextCtrl::GetLastPosition() const
 554 {
 555     wxCHECK_MSG( m_text != NULL, 0, "invalid text ctrl" );
 556
 557     int pos = 0;
 558     if (m_windowStyle & wxTE_MULTILINE)
 559         pos = gtk_text_get_length( GTK_TEXT(m_text) );
 560     else
 561         pos = GTK_ENTRY(m_text)->text_length;
 562
 563     return (long)pos-1;
 564 }
 565
 566 void wxTextCtrl::Remove( long from, long to )
 567 {
 568     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 569
 570     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 571 }
 572
 573 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 574 {
 575     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 576
 577     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 578     if (value.IsNull()) return;
 579     gint pos = (gint)from;
 580     gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
 581 }
 582
 583 void wxTextCtrl::Cut()
 584 {
 585     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 586
 587 #if (GTK_MINOR_VERSION == 1)
 588     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) );
 589 #else
 590     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
 591 #endif
 592 }
 593
 594 void wxTextCtrl::Copy()
 595 {
 596     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 597
 598 #if (GTK_MINOR_VERSION == 1)
 599     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) );
 600 #else
 601     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
 602 #endif
 603 }
 604
 605 void wxTextCtrl::Paste()
 606 {
 607     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 608
 609 #if (GTK_MINOR_VERSION == 1)
 610     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) );
 611 #else
 612     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
 613 #endif
 614 }
 615
 616 void wxTextCtrl::Clear()
 617 {
 618     SetValue( "" );
 619 }
 620
 621 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 622 {
 623     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 624
 625     if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
 626     {
 627         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 628         event.SetEventObject(this);
 629         if (GetEventHandler()->ProcessEvent(event)) return;
 630     }
 631
 632     key_event.Skip();
 633 }
 634
 635 #ifndef NO_TEXT_WINDOW_STREAM
 636 int wxTextCtrl::overflow( int WXUNUSED(c) )
 637 {
 638     int len = pptr() - pbase();
 639     char *txt = new char[len+1];
 640     strncpy(txt, pbase(), len);
 641     txt[len] = '\0';
 642     (*this) << txt;
 643     setp(pbase(), epptr());
 644     delete[] txt;
 645     return EOF;
 646 }
 647
 648 int wxTextCtrl::sync()
 649 {
 650     int len = pptr() - pbase();
 651     char *txt = new char[len+1];
 652     strncpy(txt, pbase(), len);
 653     txt[len] = '\0';
 654     (*this) << txt;
 655     setp(pbase(), epptr());
 656     delete[] txt;
 657     return 0;
 658 }
 659
 660 int wxTextCtrl::underflow()
 661 {
 662     return EOF;
 663 }
 664
 665 wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
 666 {
 667     WriteText(s);
 668     return *this;
 669 }
 670
 671 wxTextCtrl& wxTextCtrl::operator<<(float f)
 672 {
 673     static char buf[100];
 674     sprintf(buf, "%.2f", f);
 675     WriteText(buf);
 676     return *this;
 677 }
 678
 679 wxTextCtrl& wxTextCtrl::operator<<(double d)
 680 {
 681     static char buf[100];
 682     sprintf(buf, "%.2f", d);
 683     WriteText(buf);
 684     return *this;
 685 }
 686
 687 wxTextCtrl& wxTextCtrl::operator<<(int i)
 688 {
 689     static char buf[100];
 690     sprintf(buf, "%i", i);
 691     WriteText(buf);
 692     return *this;
 693 }
 694
 695 wxTextCtrl& wxTextCtrl::operator<<(long i)
 696 {
 697     static char buf[100];
 698     sprintf(buf, "%ld", i);
 699     WriteText(buf);
 700     return *this;
 701 }
 702
 703 wxTextCtrl& wxTextCtrl::operator<<(const char c)
 704 {
 705     char buf[2];
 706
 707     buf[0] = c;
 708     buf[1] = 0;
 709     WriteText(buf);
 710     return *this;
 711 }
 712 #endif
 713
 714 GtkWidget* wxTextCtrl::GetConnectWidget()
 715 {
 716     return GTK_WIDGET(m_text);
 717 }
 718
 719 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 720 {
 721     if (m_windowStyle & wxTE_MULTILINE)
 722         return (window == GTK_TEXT(m_text)->text_area);
 723     else
 724         return (window == GTK_ENTRY(m_text)->text_area);
 725 }
 726
 727 void wxTextCtrl::SetFont( const wxFont &WXUNUSED(font) )
 728 {
 729     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 730
 731     // doesn't work
 732 }
 733
 734 void wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
 735 {
 736     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 737
 738     // doesn't work
 739 }
 740
 741 void wxTextCtrl::SetBackgroundColour( const wxColour &colour )
 742 {
 743     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 744
 745     wxControl::SetBackgroundColour( colour );
 746
 747     wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
 748     if (sysbg.Red() == colour.Red() &&
 749         sysbg.Green() == colour.Green() &&
 750         sysbg.Blue() == colour.Blue())
 751     {
 752         return;
 753     }
 754
 755     if (!m_backgroundColour.Ok()) return;
 756
 757     if (m_windowStyle & wxTE_MULTILINE)
 758     {
 759         GdkWindow *window = GTK_TEXT(m_text)->text_area;
 760         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 761         gdk_window_set_background( window, m_backgroundColour.GetColor() );
 762         gdk_window_clear( window );
 763     }
 764 }
 765
 766 void wxTextCtrl::ApplyWidgetStyle()
 767 {
 768     if (m_windowStyle & wxTE_MULTILINE)
 769     {
 770         // how ?
 771     }
 772     else
 773     {
 774         SetWidgetStyle();
 775         gtk_widget_set_style( m_text, m_widgetStyle );
 776     }
 777 }
 778