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     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     {
 436         wxString text = GetValue();
 437
 438         if( pos >= text.Len()  )
 439             return FALSE;
 440
 441         *x=1;   // Col 1
 442         *y=1;   // Line 1
 443         for ( const char *p = text.c_str(); *p; p++ )
 444         {
 445             if (*p == '\n')
 446             {
 447                 (*y)++;
 448                 *x=1;
 449             }
 450             else
 451                 (*x)++;
 452         }
 453     }
 454     else // single line control
 455     {
 456         if ( pos < GTK_ENTRY(m_text)->text_length )
 457         {
 458             *y = 1;
 459             *x = pos;
 460         }
 461         else
 462         {
 463             // index out of bounds
 464             return FALSE;
 465         }
 466     }
 467
 468     return TRUE;
 469 }
 470
 471 long wxTextCtrl::XYToPosition(long x, long y ) const
 472 {
 473     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 474
 475     long pos=0;
 476
 477     for( int i=1; i<y; i++ ) pos += GetLineLength(i);
 478
 479     pos +=x-1; // Pos start with 0
 480     return pos;
 481 }
 482
 483 int wxTextCtrl::GetLineLength(long lineNo) const
 484 {
 485     wxString str = GetLineText (lineNo);
 486     return (int) str.Length();
 487 }
 488
 489 int wxTextCtrl::GetNumberOfLines() const
 490 {
 491     if (m_windowStyle & wxTE_MULTILINE)
 492     {
 493         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 494         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 495
 496         if (text)
 497         {
 498             int currentLine = 0;
 499             for (int i = 0; i < len; i++ )
 500             {
 501                 if (text[i] == '\n')
 502                     currentLine++;
 503             }
 504             g_free( text );
 505             return currentLine;
 506         }
 507         else
 508         {
 509             return 0;
 510         }
 511     }
 512     else
 513     {
 514         return 1;
 515     }
 516 }
 517
 518 void wxTextCtrl::SetInsertionPoint( long pos )
 519 {
 520     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 521
 522     int tmp = (int) pos;
 523     if (m_windowStyle & wxTE_MULTILINE)
 524         gtk_text_set_point( GTK_TEXT(m_text), tmp );
 525     else
 526         gtk_entry_set_position( GTK_ENTRY(m_text), tmp );
 527 }
 528
 529 void wxTextCtrl::SetInsertionPointEnd()
 530 {
 531     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 532
 533     SetInsertionPoint(-1);
 534 }
 535
 536 void wxTextCtrl::SetEditable( bool editable )
 537 {
 538     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 539
 540     if (m_windowStyle & wxTE_MULTILINE)
 541         gtk_text_set_editable( GTK_TEXT(m_text), editable );
 542     else
 543         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 544 }
 545
 546 void wxTextCtrl::SetSelection( long from, long to )
 547 {
 548     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 549
 550     gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 551 }
 552
 553 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 554 {
 555     wxFAIL_MSG( "wxTextCtrl::ShowPosition not implemented" );
 556 }
 557
 558 long wxTextCtrl::GetInsertionPoint() const
 559 {
 560     wxCHECK_MSG( m_text != NULL, 0, "invalid text ctrl" );
 561
 562     return (long) GTK_EDITABLE(m_text)->current_pos;
 563 }
 564
 565 long wxTextCtrl::GetLastPosition() const
 566 {
 567     wxCHECK_MSG( m_text != NULL, 0, "invalid text ctrl" );
 568
 569     int pos = 0;
 570     if (m_windowStyle & wxTE_MULTILINE)
 571         pos = gtk_text_get_length( GTK_TEXT(m_text) );
 572     else
 573         pos = GTK_ENTRY(m_text)->text_length;
 574
 575     return (long)pos-1;
 576 }
 577
 578 void wxTextCtrl::Remove( long from, long to )
 579 {
 580     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 581
 582     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 583 }
 584
 585 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 586 {
 587     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 588
 589     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 590     if (value.IsNull()) return;
 591     gint pos = (gint)from;
 592     gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
 593 }
 594
 595 void wxTextCtrl::Cut()
 596 {
 597     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 598
 599 #if (GTK_MINOR_VERSION == 1)
 600     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) );
 601 #else
 602     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
 603 #endif
 604 }
 605
 606 void wxTextCtrl::Copy()
 607 {
 608     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 609
 610 #if (GTK_MINOR_VERSION == 1)
 611     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) );
 612 #else
 613     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
 614 #endif
 615 }
 616
 617 void wxTextCtrl::Paste()
 618 {
 619     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 620
 621 #if (GTK_MINOR_VERSION == 1)
 622     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) );
 623 #else
 624     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
 625 #endif
 626 }
 627
 628 void wxTextCtrl::Clear()
 629 {
 630     SetValue( "" );
 631 }
 632
 633 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 634 {
 635     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 636
 637     if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
 638     {
 639         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 640         event.SetEventObject(this);
 641         if (GetEventHandler()->ProcessEvent(event)) return;
 642     }
 643
 644     key_event.Skip();
 645 }
 646
 647 #ifndef NO_TEXT_WINDOW_STREAM
 648 int wxTextCtrl::overflow( int WXUNUSED(c) )
 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 EOF;
 658 }
 659
 660 int wxTextCtrl::sync()
 661 {
 662     int len = pptr() - pbase();
 663     char *txt = new char[len+1];
 664     strncpy(txt, pbase(), len);
 665     txt[len] = '\0';
 666     (*this) << txt;
 667     setp(pbase(), epptr());
 668     delete[] txt;
 669     return 0;
 670 }
 671
 672 int wxTextCtrl::underflow()
 673 {
 674     return EOF;
 675 }
 676
 677 wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
 678 {
 679     WriteText(s);
 680     return *this;
 681 }
 682
 683 wxTextCtrl& wxTextCtrl::operator<<(float f)
 684 {
 685     static char buf[100];
 686     sprintf(buf, "%.2f", f);
 687     WriteText(buf);
 688     return *this;
 689 }
 690
 691 wxTextCtrl& wxTextCtrl::operator<<(double d)
 692 {
 693     static char buf[100];
 694     sprintf(buf, "%.2f", d);
 695     WriteText(buf);
 696     return *this;
 697 }
 698
 699 wxTextCtrl& wxTextCtrl::operator<<(int i)
 700 {
 701     static char buf[100];
 702     sprintf(buf, "%i", i);
 703     WriteText(buf);
 704     return *this;
 705 }
 706
 707 wxTextCtrl& wxTextCtrl::operator<<(long i)
 708 {
 709     static char buf[100];
 710     sprintf(buf, "%ld", i);
 711     WriteText(buf);
 712     return *this;
 713 }
 714
 715 wxTextCtrl& wxTextCtrl::operator<<(const char c)
 716 {
 717     char buf[2];
 718
 719     buf[0] = c;
 720     buf[1] = 0;
 721     WriteText(buf);
 722     return *this;
 723 }
 724 #endif
 725
 726 GtkWidget* wxTextCtrl::GetConnectWidget()
 727 {
 728     return GTK_WIDGET(m_text);
 729 }
 730
 731 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 732 {
 733     if (m_windowStyle & wxTE_MULTILINE)
 734         return (window == GTK_TEXT(m_text)->text_area);
 735     else
 736         return (window == GTK_ENTRY(m_text)->text_area);
 737 }
 738
 739 void wxTextCtrl::SetFont( const wxFont &WXUNUSED(font) )
 740 {
 741     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 742
 743     // doesn't work
 744 }
 745
 746 void wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
 747 {
 748     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 749
 750     // doesn't work
 751 }
 752
 753 void wxTextCtrl::SetBackgroundColour( const wxColour &colour )
 754 {
 755     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 756
 757     wxControl::SetBackgroundColour( colour );
 758
 759     wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
 760     if (sysbg.Red() == colour.Red() &&
 761         sysbg.Green() == colour.Green() &&
 762         sysbg.Blue() == colour.Blue())
 763     {
 764         return;
 765     }
 766
 767     if (!m_backgroundColour.Ok()) return;
 768
 769     if (m_windowStyle & wxTE_MULTILINE)
 770     {
 771         GdkWindow *window = GTK_TEXT(m_text)->text_area;
 772         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 773         gdk_window_set_background( window, m_backgroundColour.GetColor() );
 774         gdk_window_clear( window );
 775     }
 776 }
 777
 778 void wxTextCtrl::ApplyWidgetStyle()
 779 {
 780     if (m_windowStyle & wxTE_MULTILINE)
 781     {
 782         // how ?
 783     }
 784     else
 785     {
 786         SetWidgetStyle();
 787         gtk_widget_set_style( m_text, m_widgetStyle );
 788     }
 789 }
 790