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.IsEmpty())
 186     {
 187         gint tmp = 0;
 188         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 189
 190         if (multi_line)
 191         {
 192             /* bring editable's cursor uptodate. bug in GTK. */
 193
 194             GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 195         }
 196     }
 197
 198     if (style & wxTE_PASSWORD)
 199     {
 200         if (!multi_line)
 201             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 202     }
 203
 204     if (style & wxTE_READONLY)
 205     {
 206         if (!multi_line)
 207             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 208     }
 209     else
 210     {
 211         if (multi_line)
 212             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 213     }
 214
 215     Show( TRUE );
 216
 217     SetBackgroundColour( parent->GetBackgroundColour() );
 218     SetForegroundColour( parent->GetForegroundColour() );
 219
 220     return TRUE;
 221 }
 222
 223 void wxTextCtrl::CalculateScrollbar()
 224 {
 225     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 226
 227     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 228
 229     if (adj->upper - adj->page_size < 0.8)
 230     {
 231         if (m_vScrollbarVisible)
 232         {
 233         gtk_widget_hide( m_vScrollbar );
 234
 235         m_vScrollbarVisible = FALSE;
 236         }
 237     }
 238     else
 239     {
 240         if (!m_vScrollbarVisible)
 241         {
 242         gtk_widget_show( m_vScrollbar );
 243
 244         m_vScrollbarVisible = TRUE;
 245         }
 246     }
 247 }
 248
 249 wxString wxTextCtrl::GetValue() const
 250 {
 251     wxCHECK_MSG( m_text != NULL, "", "invalid text ctrl" );
 252
 253     wxString tmp;
 254     if (m_windowStyle & wxTE_MULTILINE)
 255     {
 256         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 257         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 258         tmp = text;
 259         g_free( text );
 260     }
 261     else
 262     {
 263         tmp = gtk_entry_get_text( GTK_ENTRY(m_text) );
 264     }
 265     return tmp;
 266 }
 267
 268 void wxTextCtrl::SetValue( const wxString &value )
 269 {
 270     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 271
 272     wxString tmp = "";
 273     if (!value.IsNull()) tmp = value;
 274     if (m_windowStyle & wxTE_MULTILINE)
 275     {
 276         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 277         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 278         len = 0;
 279         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmp, tmp.Length(), &len );
 280     }
 281     else
 282     {
 283         gtk_entry_set_text( GTK_ENTRY(m_text), tmp );
 284     }
 285 }
 286
 287 void wxTextCtrl::WriteText( const wxString &text )
 288 {
 289     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 290
 291     if (text.IsNull()) return;
 292
 293     if (m_windowStyle & wxTE_MULTILINE)
 294     {
 295         /* this moves the cursor pos to behind the inserted text */
 296
 297         gint len = GTK_EDITABLE(m_text)->current_pos;
 298
 299         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 300
 301         /* bring editable's cursor uptodate. bug in GTK. */
 302
 303         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 304
 305     }
 306     else
 307     {
 308         gtk_entry_append_text( GTK_ENTRY(m_text), text );
 309     }
 310 }
 311
 312 bool wxTextCtrl::LoadFile( const wxString &file )
 313 {
 314   wxCHECK_MSG( m_text != NULL, FALSE, "invalid text ctrl" );
 315
 316   if (!wxFileExists(file)) return FALSE;
 317
 318   Clear();
 319
 320   FILE *fp = (FILE*) NULL;
 321   struct stat statb;
 322
 323   if ((stat ((char*) (const char*) file, &statb) == -1) || (statb.st_mode & S_IFMT) != S_IFREG ||
 324       !(fp = fopen ((char*) (const char*) file, "r")))
 325   {
 326       return FALSE;
 327   }
 328   else
 329   {
 330     gint len = statb.st_size;
 331     char *text;
 332     if (!(text = (char*)malloc ((unsigned) (len + 1))))
 333     {
 334       fclose (fp);
 335       return FALSE;
 336     }
 337     if (fread (text, sizeof (char), len, fp) != (size_t) len)
 338     {
 339     }
 340     fclose (fp);
 341
 342     text[len] = 0;
 343
 344     if (m_windowStyle & wxTE_MULTILINE)
 345     {
 346       gint pos = 0;
 347       gtk_editable_insert_text( GTK_EDITABLE(m_text), text, len, &pos );
 348     }
 349     else
 350     {
 351       gtk_entry_set_text( GTK_ENTRY(m_text), text );
 352     }
 353
 354     free (text);
 355     m_modified = FALSE;
 356     return TRUE;
 357   }
 358   return FALSE;
 359 }
 360
 361 bool wxTextCtrl::SaveFile( const wxString &file )
 362 {
 363   wxCHECK_MSG( m_text != NULL, FALSE, "invalid text ctrl" );
 364
 365   if (file == "") return FALSE;
 366
 367   FILE *fp;
 368
 369   if (!(fp = fopen ((char*) (const char*) file, "w")))
 370     {
 371       return FALSE;
 372     }
 373   else
 374     {
 375       char *text = (char*) NULL;
 376       gint len = 0;
 377
 378       if (m_windowStyle & wxTE_MULTILINE)
 379       {
 380         len = gtk_text_get_length( GTK_TEXT(m_text) );
 381         text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 382       }
 383       else
 384       {
 385         text = gtk_entry_get_text( GTK_ENTRY(m_text) );
 386       }
 387
 388       if (fwrite (text, sizeof (char), len, fp) != (size_t) len)
 389       {
 390           // Did not write whole file
 391       }
 392
 393       // Make sure newline terminates the file
 394       if (text[len - 1] != '\n')
 395           fputc ('\n', fp);
 396
 397       fclose (fp);
 398
 399       if (m_windowStyle & wxTE_MULTILINE) g_free( text );
 400
 401       m_modified = FALSE;
 402       return TRUE;
 403     }
 404
 405   return TRUE;
 406 }
 407
 408 wxString wxTextCtrl::GetLineText( long lineNo ) const
 409 {
 410   if (m_windowStyle & wxTE_MULTILINE)
 411   {
 412     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 413     char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 414
 415     if (text)
 416     {
 417         wxString buf("");
 418         long i;
 419         int currentLine = 0;
 420         for (i = 0; currentLine != lineNo && text[i]; i++ )
 421           if (text[i] == '\n')
 422             currentLine++;
 423         // Now get the text
 424         int j;
 425         for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
 426             buf += text[i];
 427
 428         g_free( text );
 429         return buf;
 430     }
 431     else
 432       return wxEmptyString;
 433   }
 434   else
 435   {
 436     if (lineNo == 0) return GetValue();
 437     return wxEmptyString;
 438   }
 439 }
 440
 441 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 442 {
 443   /* If you implement this, don't forget to update the documentation!
 444    * (file docs/latex/wx/text.tex) */
 445     wxFAIL_MSG( "wxTextCtrl::OnDropFiles not implemented" );
 446 }
 447
 448 long wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 449 {
 450     if ( m_windowStyle & wxTE_MULTILINE )
 451     {
 452         wxString text = GetValue();
 453
 454         // cast to prevent warning. But pos really should've been unsigned.
 455         if( (unsigned long)pos > text.Len()  )
 456             return FALSE;
 457
 458         *x=0;   // First Col
 459         *y=0;   // First Line
 460
 461         const char* stop = text.c_str() + pos;
 462         for ( const char *p = text.c_str(); p < stop; p++ )
 463         {
 464             if (*p == '\n')
 465             {
 466                 (*y)++;
 467                 *x=0;
 468             }
 469             else
 470                 (*x)++;
 471         }
 472     }
 473     else // single line control
 474     {
 475         if ( pos <= GTK_ENTRY(m_text)->text_length )
 476         {
 477             *y = 0;
 478             *x = pos;
 479         }
 480         else
 481         {
 482             // index out of bounds
 483             return FALSE;
 484         }
 485     }
 486
 487     return TRUE;
 488 }
 489
 490 long wxTextCtrl::XYToPosition(long x, long y ) const
 491 {
 492     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 493
 494     long pos=0;
 495     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
 496
 497     pos += x;
 498     return pos;
 499 }
 500
 501 int wxTextCtrl::GetLineLength(long lineNo) const
 502 {
 503     wxString str = GetLineText (lineNo);
 504     return (int) str.Length();
 505 }
 506
 507 int wxTextCtrl::GetNumberOfLines() const
 508 {
 509     if (m_windowStyle & wxTE_MULTILINE)
 510     {
 511         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 512         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 513
 514         if (text)
 515         {
 516             int currentLine = 0;
 517             for (int i = 0; i < len; i++ )
 518             {
 519                 if (text[i] == '\n')
 520                     currentLine++;
 521             }
 522             g_free( text );
 523
 524             // currentLine is 0 based, add 1 to get number of lines
 525             return currentLine + 1;
 526         }
 527         else
 528         {
 529             return 0;
 530         }
 531     }
 532     else
 533     {
 534         return 1;
 535     }
 536 }
 537
 538 void wxTextCtrl::SetInsertionPoint( long pos )
 539 {
 540     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 541
 542     if (m_windowStyle & wxTE_MULTILINE)
 543     {
 544         /* seems to be broken in GTK 1.0.X:
 545            gtk_text_set_point( GTK_TEXT(m_text), (int)pos ); */
 546
 547         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
 548           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 549
 550         /* we fake a set_point by inserting and deleting. as the user
 551            isn't supposed to get to know about thos non-sense, we
 552            disconnect so that no events are sent to the user program. */
 553
 554         gint tmp = (gint)pos;
 555         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
 556         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
 557
 558         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 559           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 560
 561         /* bring editable's cursor uptodate. another bug in GTK. */
 562
 563         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 564     }
 565     else
 566     {
 567         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
 568     }
 569 }
 570
 571 void wxTextCtrl::SetInsertionPointEnd()
 572 {
 573     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 574
 575     if (m_windowStyle & wxTE_MULTILINE)
 576         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
 577     else
 578         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
 579 }
 580
 581 void wxTextCtrl::SetEditable( bool editable )
 582 {
 583     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 584
 585     if (m_windowStyle & wxTE_MULTILINE)
 586         gtk_text_set_editable( GTK_TEXT(m_text), editable );
 587     else
 588         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 589 }
 590
 591 void wxTextCtrl::SetSelection( long from, long to )
 592 {
 593     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 594
 595     gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 596 }
 597
 598 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 599 {
 600     wxFAIL_MSG( "wxTextCtrl::ShowPosition not implemented" );
 601 }
 602
 603 long wxTextCtrl::GetInsertionPoint() const
 604 {
 605     wxCHECK_MSG( m_text != NULL, 0, "invalid text ctrl" );
 606
 607     return (long) GTK_EDITABLE(m_text)->current_pos;
 608 }
 609
 610 long wxTextCtrl::GetLastPosition() const
 611 {
 612     wxCHECK_MSG( m_text != NULL, 0, "invalid text ctrl" );
 613
 614     int pos = 0;
 615     if (m_windowStyle & wxTE_MULTILINE)
 616         pos = gtk_text_get_length( GTK_TEXT(m_text) );
 617     else
 618         pos = GTK_ENTRY(m_text)->text_length;
 619
 620     return (long)pos;
 621 }
 622
 623 void wxTextCtrl::Remove( long from, long to )
 624 {
 625     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 626
 627     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 628 }
 629
 630 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 631 {
 632     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 633
 634     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 635     if (value.IsNull()) return;
 636     gint pos = (gint)from;
 637     gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
 638 }
 639
 640 void wxTextCtrl::Cut()
 641 {
 642     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 643
 644 #if (GTK_MINOR_VERSION == 1)
 645     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) );
 646 #else
 647     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
 648 #endif
 649 }
 650
 651 void wxTextCtrl::Copy()
 652 {
 653     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 654
 655 #if (GTK_MINOR_VERSION == 1)
 656     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) );
 657 #else
 658     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
 659 #endif
 660 }
 661
 662 void wxTextCtrl::Paste()
 663 {
 664     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 665
 666 #if (GTK_MINOR_VERSION == 1)
 667     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) );
 668 #else
 669     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
 670 #endif
 671 }
 672
 673 void wxTextCtrl::Clear()
 674 {
 675     SetValue( "" );
 676 }
 677
 678 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 679 {
 680     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 681
 682     if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
 683     {
 684         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 685         event.SetEventObject(this);
 686         if (GetEventHandler()->ProcessEvent(event)) return;
 687     }
 688
 689     key_event.Skip();
 690 }
 691
 692 #ifndef NO_TEXT_WINDOW_STREAM
 693 int wxTextCtrl::overflow( int WXUNUSED(c) )
 694 {
 695     int len = pptr() - pbase();
 696     char *txt = new char[len+1];
 697     strncpy(txt, pbase(), len);
 698     txt[len] = '\0';
 699     (*this) << txt;
 700     setp(pbase(), epptr());
 701     delete[] txt;
 702     return EOF;
 703 }
 704
 705 int wxTextCtrl::sync()
 706 {
 707     int len = pptr() - pbase();
 708     char *txt = new char[len+1];
 709     strncpy(txt, pbase(), len);
 710     txt[len] = '\0';
 711     (*this) << txt;
 712     setp(pbase(), epptr());
 713     delete[] txt;
 714     return 0;
 715 }
 716
 717 int wxTextCtrl::underflow()
 718 {
 719     return EOF;
 720 }
 721
 722 wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
 723 {
 724     WriteText(s);
 725     return *this;
 726 }
 727
 728 wxTextCtrl& wxTextCtrl::operator<<(float f)
 729 {
 730     static char buf[100];
 731     sprintf(buf, "%.2f", f);
 732     WriteText(buf);
 733     return *this;
 734 }
 735
 736 wxTextCtrl& wxTextCtrl::operator<<(double d)
 737 {
 738     static char buf[100];
 739     sprintf(buf, "%.2f", d);
 740     WriteText(buf);
 741     return *this;
 742 }
 743
 744 wxTextCtrl& wxTextCtrl::operator<<(int i)
 745 {
 746     static char buf[100];
 747     sprintf(buf, "%i", i);
 748     WriteText(buf);
 749     return *this;
 750 }
 751
 752 wxTextCtrl& wxTextCtrl::operator<<(long i)
 753 {
 754     static char buf[100];
 755     sprintf(buf, "%ld", i);
 756     WriteText(buf);
 757     return *this;
 758 }
 759
 760 wxTextCtrl& wxTextCtrl::operator<<(const char c)
 761 {
 762     char buf[2];
 763
 764     buf[0] = c;
 765     buf[1] = 0;
 766     WriteText(buf);
 767     return *this;
 768 }
 769 #endif
 770
 771 GtkWidget* wxTextCtrl::GetConnectWidget()
 772 {
 773     return GTK_WIDGET(m_text);
 774 }
 775
 776 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 777 {
 778     if (m_windowStyle & wxTE_MULTILINE)
 779         return (window == GTK_TEXT(m_text)->text_area);
 780     else
 781         return (window == GTK_ENTRY(m_text)->text_area);
 782 }
 783
 784 void wxTextCtrl::SetFont( const wxFont &WXUNUSED(font) )
 785 {
 786     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 787
 788     // doesn't work
 789 }
 790
 791 void wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
 792 {
 793     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 794
 795     // doesn't work
 796 }
 797
 798 void wxTextCtrl::SetBackgroundColour( const wxColour &colour )
 799 {
 800     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 801
 802     wxControl::SetBackgroundColour( colour );
 803
 804     wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
 805     if (sysbg.Red() == colour.Red() &&
 806         sysbg.Green() == colour.Green() &&
 807         sysbg.Blue() == colour.Blue())
 808     {
 809         return;
 810     }
 811
 812     if (!m_backgroundColour.Ok()) return;
 813
 814     if (m_windowStyle & wxTE_MULTILINE)
 815     {
 816         GdkWindow *window = GTK_TEXT(m_text)->text_area;
 817         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 818         gdk_window_set_background( window, m_backgroundColour.GetColor() );
 819         gdk_window_clear( window );
 820     }
 821 }
 822
 823 void wxTextCtrl::ApplyWidgetStyle()
 824 {
 825     if (m_windowStyle & wxTE_MULTILINE)
 826     {
 827         // how ?
 828     }
 829     else
 830     {
 831         SetWidgetStyle();
 832         gtk_widget_set_style( m_text, m_widgetStyle );
 833     }
 834 }
 835