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