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         // Find the current insertion point
 291         gint len = GTK_EDITABLE(m_text)->current_pos;
 292         // Insert text at this point
 293         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 294         // Note: the insertion point is now at 'len' (past our insertion).
 295     }
 296     else
 297     {
 298         gtk_entry_append_text( GTK_ENTRY(m_text), text );
 299     }
 300 }
 301
 302 bool wxTextCtrl::LoadFile( const wxString &file )
 303 {
 304   wxCHECK_MSG( m_text != NULL, FALSE, "invalid text ctrl" );
 305
 306   if (!wxFileExists(file)) return FALSE;
 307
 308   Clear();
 309
 310   FILE *fp = (FILE*) NULL;
 311   struct stat statb;
 312
 313   if ((stat ((char*) (const char*) file, &statb) == -1) || (statb.st_mode & S_IFMT) != S_IFREG ||
 314       !(fp = fopen ((char*) (const char*) file, "r")))
 315   {
 316       return FALSE;
 317   }
 318   else
 319   {
 320     gint len = statb.st_size;
 321     char *text;
 322     if (!(text = (char*)malloc ((unsigned) (len + 1))))
 323     {
 324       fclose (fp);
 325       return FALSE;
 326     }
 327     if (fread (text, sizeof (char), len, fp) != (size_t) len)
 328     {
 329     }
 330     fclose (fp);
 331
 332     text[len] = 0;
 333
 334     if (m_windowStyle & wxTE_MULTILINE)
 335     {
 336       gint pos = 0;
 337       gtk_editable_insert_text( GTK_EDITABLE(m_text), text, len, &pos );
 338     }
 339     else
 340     {
 341       gtk_entry_set_text( GTK_ENTRY(m_text), text );
 342     }
 343
 344     free (text);
 345     m_modified = FALSE;
 346     return TRUE;
 347   }
 348   return FALSE;
 349 }
 350
 351 bool wxTextCtrl::SaveFile( const wxString &file )
 352 {
 353   wxCHECK_MSG( m_text != NULL, FALSE, "invalid text ctrl" );
 354
 355   if (file == "") return FALSE;
 356
 357   FILE *fp;
 358
 359   if (!(fp = fopen ((char*) (const char*) file, "w")))
 360     {
 361       return FALSE;
 362     }
 363   else
 364     {
 365       char *text = (char*) NULL;
 366       gint len = 0;
 367
 368       if (m_windowStyle & wxTE_MULTILINE)
 369       {
 370         len = gtk_text_get_length( GTK_TEXT(m_text) );
 371         text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 372       }
 373       else
 374       {
 375         text = gtk_entry_get_text( GTK_ENTRY(m_text) );
 376       }
 377
 378       if (fwrite (text, sizeof (char), len, fp) != (size_t) len)
 379       {
 380           // Did not write whole file
 381       }
 382
 383       // Make sure newline terminates the file
 384       if (text[len - 1] != '\n')
 385           fputc ('\n', fp);
 386
 387       fclose (fp);
 388
 389       if (m_windowStyle & wxTE_MULTILINE) g_free( text );
 390
 391       m_modified = FALSE;
 392       return TRUE;
 393     }
 394
 395   return TRUE;
 396 }
 397
 398 wxString wxTextCtrl::GetLineText( long lineNo ) const
 399 {
 400   if (m_windowStyle & wxTE_MULTILINE)
 401   {
 402     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 403     char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 404
 405     if (text)
 406     {
 407         wxString buf("");
 408         long i;
 409         int currentLine = 0;
 410         for (i = 0; currentLine != lineNo && text[i]; i++ )
 411           if (text[i] == '\n')
 412             currentLine++;
 413         // Now get the text
 414         int j;
 415         for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
 416             buf += text[i];
 417
 418         g_free( text );
 419         return buf;
 420     }
 421     else
 422       return wxEmptyString;
 423   }
 424   else
 425   {
 426     if (lineNo == 0) return GetValue();
 427     return wxEmptyString;
 428   }
 429 }
 430
 431 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 432 {
 433   /* If you implement this, don't forget to update the documentation!
 434    * (file docs/latex/wx/text.tex) */
 435     wxFAIL_MSG( "wxTextCtrl::OnDropFiles not implemented" );
 436 }
 437
 438 long wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 439 {
 440     if ( m_windowStyle & wxTE_MULTILINE )
 441     {
 442         wxString text = GetValue();
 443
 444         // cast to prevent warning. But pos really should've been unsigned.
 445         if( (unsigned long)pos > text.Len()  )
 446             return FALSE;
 447
 448         *x=0;   // First Col
 449         *y=0;   // First Line
 450
 451         const char* stop = text.c_str() + pos;
 452         for ( const char *p = text.c_str(); p < stop; p++ )
 453         {
 454             if (*p == '\n')
 455             {
 456                 (*y)++;
 457                 *x=0;
 458             }
 459             else
 460                 (*x)++;
 461         }
 462     }
 463     else // single line control
 464     {
 465         if ( pos <= GTK_ENTRY(m_text)->text_length )
 466         {
 467             *y = 0;
 468             *x = pos;
 469         }
 470         else
 471         {
 472             // index out of bounds
 473             return FALSE;
 474         }
 475     }
 476
 477     return TRUE;
 478 }
 479
 480 long wxTextCtrl::XYToPosition(long x, long y ) const
 481 {
 482     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 483
 484     long pos=0;
 485     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
 486
 487     pos += x;
 488     return pos;
 489 }
 490
 491 int wxTextCtrl::GetLineLength(long lineNo) const
 492 {
 493     wxString str = GetLineText (lineNo);
 494     return (int) str.Length();
 495 }
 496
 497 int wxTextCtrl::GetNumberOfLines() const
 498 {
 499     if (m_windowStyle & wxTE_MULTILINE)
 500     {
 501         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 502         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 503
 504         if (text)
 505         {
 506             int currentLine = 0;
 507             for (int i = 0; i < len; i++ )
 508             {
 509                 if (text[i] == '\n')
 510                     currentLine++;
 511             }
 512             g_free( text );
 513
 514             // currentLine is 0 based, add 1 to get number of lines
 515             return currentLine + 1;
 516         }
 517         else
 518         {
 519             return 0;
 520         }
 521     }
 522     else
 523     {
 524         return 1;
 525     }
 526 }
 527
 528 void wxTextCtrl::SetInsertionPoint( long pos )
 529 {
 530     int len;
 531     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 532     if (m_windowStyle & wxTE_MULTILINE) {
 533         //gtk_text_set_point( GTK_TEXT(m_text), (int)pos );
 534         /* HH: The call commented out above doesn't do anything. Don't know
 535          * why. The code below isn't perfect either; it doesn't move the
 536          * actual cursor, but subsequent calls to WriteText will insert
 537          * text at the set position and move the displayed cursor behind it as
 538          * well. I guess this is good enough for most uses. */
 539         len = gtk_text_get_length( GTK_TEXT(m_text) );
 540         if ( (pos < 0) || (pos > len) )
 541           pos = len;
 542         GTK_EDITABLE(m_text)->current_pos = (int)pos;
 543     }
 544     else
 545         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
 546 }
 547
 548 void wxTextCtrl::SetInsertionPointEnd()
 549 {
 550     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 551
 552     if (m_windowStyle & wxTE_MULTILINE)
 553         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
 554     else
 555         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
 556 }
 557
 558 void wxTextCtrl::SetEditable( bool editable )
 559 {
 560     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 561
 562     if (m_windowStyle & wxTE_MULTILINE)
 563         gtk_text_set_editable( GTK_TEXT(m_text), editable );
 564     else
 565         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 566 }
 567
 568 void wxTextCtrl::SetSelection( long from, long to )
 569 {
 570     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 571
 572     gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 573 }
 574
 575 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 576 {
 577     wxFAIL_MSG( "wxTextCtrl::ShowPosition not implemented" );
 578 }
 579
 580 long wxTextCtrl::GetInsertionPoint() const
 581 {
 582     wxCHECK_MSG( m_text != NULL, 0, "invalid text ctrl" );
 583
 584     return (long) GTK_EDITABLE(m_text)->current_pos;
 585 }
 586
 587 long wxTextCtrl::GetLastPosition() const
 588 {
 589     wxCHECK_MSG( m_text != NULL, 0, "invalid text ctrl" );
 590
 591     int pos = 0;
 592     if (m_windowStyle & wxTE_MULTILINE)
 593         pos = gtk_text_get_length( GTK_TEXT(m_text) );
 594     else
 595         pos = GTK_ENTRY(m_text)->text_length;
 596
 597     return (long)pos;
 598 }
 599
 600 void wxTextCtrl::Remove( long from, long to )
 601 {
 602     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 603
 604     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 605 }
 606
 607 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 608 {
 609     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 610
 611     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 612     if (value.IsNull()) return;
 613     gint pos = (gint)from;
 614     gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
 615 }
 616
 617 void wxTextCtrl::Cut()
 618 {
 619     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 620
 621 #if (GTK_MINOR_VERSION == 1)
 622     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) );
 623 #else
 624     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
 625 #endif
 626 }
 627
 628 void wxTextCtrl::Copy()
 629 {
 630     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 631
 632 #if (GTK_MINOR_VERSION == 1)
 633     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) );
 634 #else
 635     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
 636 #endif
 637 }
 638
 639 void wxTextCtrl::Paste()
 640 {
 641     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 642
 643 #if (GTK_MINOR_VERSION == 1)
 644     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) );
 645 #else
 646     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
 647 #endif
 648 }
 649
 650 void wxTextCtrl::Clear()
 651 {
 652     SetValue( "" );
 653 }
 654
 655 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 656 {
 657     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 658
 659     if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
 660     {
 661         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 662         event.SetEventObject(this);
 663         if (GetEventHandler()->ProcessEvent(event)) return;
 664     }
 665
 666     key_event.Skip();
 667 }
 668
 669 #ifndef NO_TEXT_WINDOW_STREAM
 670 int wxTextCtrl::overflow( int WXUNUSED(c) )
 671 {
 672     int len = pptr() - pbase();
 673     char *txt = new char[len+1];
 674     strncpy(txt, pbase(), len);
 675     txt[len] = '\0';
 676     (*this) << txt;
 677     setp(pbase(), epptr());
 678     delete[] txt;
 679     return EOF;
 680 }
 681
 682 int wxTextCtrl::sync()
 683 {
 684     int len = pptr() - pbase();
 685     char *txt = new char[len+1];
 686     strncpy(txt, pbase(), len);
 687     txt[len] = '\0';
 688     (*this) << txt;
 689     setp(pbase(), epptr());
 690     delete[] txt;
 691     return 0;
 692 }
 693
 694 int wxTextCtrl::underflow()
 695 {
 696     return EOF;
 697 }
 698
 699 wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
 700 {
 701     WriteText(s);
 702     return *this;
 703 }
 704
 705 wxTextCtrl& wxTextCtrl::operator<<(float f)
 706 {
 707     static char buf[100];
 708     sprintf(buf, "%.2f", f);
 709     WriteText(buf);
 710     return *this;
 711 }
 712
 713 wxTextCtrl& wxTextCtrl::operator<<(double d)
 714 {
 715     static char buf[100];
 716     sprintf(buf, "%.2f", d);
 717     WriteText(buf);
 718     return *this;
 719 }
 720
 721 wxTextCtrl& wxTextCtrl::operator<<(int i)
 722 {
 723     static char buf[100];
 724     sprintf(buf, "%i", i);
 725     WriteText(buf);
 726     return *this;
 727 }
 728
 729 wxTextCtrl& wxTextCtrl::operator<<(long i)
 730 {
 731     static char buf[100];
 732     sprintf(buf, "%ld", i);
 733     WriteText(buf);
 734     return *this;
 735 }
 736
 737 wxTextCtrl& wxTextCtrl::operator<<(const char c)
 738 {
 739     char buf[2];
 740
 741     buf[0] = c;
 742     buf[1] = 0;
 743     WriteText(buf);
 744     return *this;
 745 }
 746 #endif
 747
 748 GtkWidget* wxTextCtrl::GetConnectWidget()
 749 {
 750     return GTK_WIDGET(m_text);
 751 }
 752
 753 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 754 {
 755     if (m_windowStyle & wxTE_MULTILINE)
 756         return (window == GTK_TEXT(m_text)->text_area);
 757     else
 758         return (window == GTK_ENTRY(m_text)->text_area);
 759 }
 760
 761 void wxTextCtrl::SetFont( const wxFont &WXUNUSED(font) )
 762 {
 763     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 764
 765     // doesn't work
 766 }
 767
 768 void wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
 769 {
 770     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 771
 772     // doesn't work
 773 }
 774
 775 void wxTextCtrl::SetBackgroundColour( const wxColour &colour )
 776 {
 777     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 778
 779     wxControl::SetBackgroundColour( colour );
 780
 781     wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
 782     if (sysbg.Red() == colour.Red() &&
 783         sysbg.Green() == colour.Green() &&
 784         sysbg.Blue() == colour.Blue())
 785     {
 786         return;
 787     }
 788
 789     if (!m_backgroundColour.Ok()) return;
 790
 791     if (m_windowStyle & wxTE_MULTILINE)
 792     {
 793         GdkWindow *window = GTK_TEXT(m_text)->text_area;
 794         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 795         gdk_window_set_background( window, m_backgroundColour.GetColor() );
 796         gdk_window_clear( window );
 797     }
 798 }
 799
 800 void wxTextCtrl::ApplyWidgetStyle()
 801 {
 802     if (m_windowStyle & wxTE_MULTILINE)
 803     {
 804         // how ?
 805     }
 806     else
 807     {
 808         SetWidgetStyle();
 809         gtk_widget_set_style( m_text, m_widgetStyle );
 810     }
 811 }
 812