src/gtk1/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        textctrl.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "textctrl.h"
  12 #endif
  13
  14 #include "wx/textctrl.h"
  15 #include "wx/utils.h"
  16 #include "wx/intl.h"
  17 #include "wx/settings.h"
  18
  19 #include <sys/types.h>
  20 #include <sys/stat.h>
  21 #include <ctype.h>
  22
  23 #include "gdk/gdk.h"
  24 #include "gtk/gtk.h"
  25 #include "gdk/gdkkeysyms.h"
  26
  27 //-----------------------------------------------------------------------------
  28 // data
  29 //-----------------------------------------------------------------------------
  30
  31 extern bool   g_blockEventsOnDrag;
  32
  33 //-----------------------------------------------------------------------------
  34 //  "changed"
  35 //-----------------------------------------------------------------------------
  36
  37 static void
  38 gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
  39 {
  40     win->SetModified();
  41
  42     win->CalculateScrollbar();
  43
  44     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->m_windowId );
  45     event.SetString( copystring(win->GetValue()) );
  46     event.SetEventObject( win );
  47     win->GetEventHandler()->ProcessEvent( event );
  48     delete[] event.GetString();
  49 }
  50
  51 //-----------------------------------------------------------------------------
  52 // "size_allocate"
  53 //-----------------------------------------------------------------------------
  54
  55 static void
  56 gtk_text_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* WXUNUSED(alloc), wxTextCtrl *win )
  57 {
  58     win->CalculateScrollbar();
  59 }
  60
  61 //-----------------------------------------------------------------------------
  62 //  wxTextCtrl
  63 //-----------------------------------------------------------------------------
  64
  65 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
  66
  67 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
  68     EVT_CHAR(wxTextCtrl::OnChar)
  69 END_EVENT_TABLE()
  70
  71 #ifndef NO_TEXT_WINDOW_STREAM
  72 wxTextCtrl::wxTextCtrl() : streambuf()
  73 {
  74     if (allocate()) setp(base(),ebuf());
  75
  76     m_modified = FALSE;
  77 }
  78 #else
  79 wxTextCtrl::wxTextCtrl()
  80 {
  81     m_modified = FALSE;
  82 }
  83 #endif
  84
  85 #ifndef NO_TEXT_WINDOW_STREAM
  86 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
  87       const wxPoint &pos, const wxSize &size,
  88       int style, const wxValidator& validator, const wxString &name ) : streambuf()
  89 {
  90     if (allocate()) setp(base(),ebuf());
  91
  92     m_modified = FALSE;
  93     Create( parent, id, value, pos, size, style, validator, name );
  94 }
  95 #else
  96 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
  97       const wxPoint &pos, const wxSize &size,
  98       int style, const wxValidator& validator, const wxString &name )
  99 {
 100     m_modified = FALSE;
 101     Create( parent, id, value, pos, size, style, validator, name );
 102 }
 103 #endif
 104
 105 bool wxTextCtrl::Create( wxWindow *parent, wxWindowID id, const wxString &value,
 106       const wxPoint &pos, const wxSize &size,
 107       int style, const wxValidator& validator, const wxString &name )
 108 {
 109     m_needParent = TRUE;
 110     m_acceptsFocus = TRUE;
 111
 112     PreCreation( parent, id, pos, size, style, name );
 113
 114     SetValidator( validator );
 115
 116     m_vScrollbarVisible = TRUE;
 117
 118     bool multi_line = (style & wxTE_MULTILINE) != 0;
 119     if ( multi_line )
 120     {
 121         // a multi-line edit control: create a vertical scrollbar by default and
 122         // horizontal if requested
 123         bool bHasHScrollbar = (style & wxHSCROLL) != 0;
 124
 125         // create our control...
 126         m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
 127
 128         // ... and put into the upper left hand corner of the table
 129         m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
 130         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 131                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 132                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 133                        0, 0);
 134
 135         // put the horizontal scrollbar in the lower left hand corner
 136         if (bHasHScrollbar)
 137         {
 138             GtkWidget *hscrollbar = gtk_hscrollbar_new(GTK_TEXT(m_text)->hadj);
 139             gtk_table_attach(GTK_TABLE(m_widget), hscrollbar, 0, 1, 1, 2,
 140                        (GtkAttachOptions)(GTK_EXPAND | GTK_FILL),
 141                        GTK_FILL,
 142                        0, 0);
 143             gtk_widget_show(hscrollbar);
 144         }
 145
 146         // finally, put the vertical scrollbar in the upper right corner
 147         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 148         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 149                      GTK_FILL,
 150                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 151                      0, 0);
 152         gtk_widget_show( m_vScrollbar );
 153
 154         gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
 155           GTK_SIGNAL_FUNC(gtk_text_size_callback), (gpointer)this );
 156     }
 157     else
 158     {
 159         // a single-line text control: no need for scrollbars
 160         m_widget =
 161           m_text = gtk_entry_new();
 162     }
 163
 164     wxSize newSize = size;
 165     if (newSize.x == -1) newSize.x = 80;
 166     if (newSize.y == -1) newSize.y = 26;
 167     SetSize( newSize.x, newSize.y );
 168
 169     m_parent->AddChild( this );
 170
 171     (m_parent->m_insertCallback)( m_parent, this );
 172
 173     PostCreation();
 174
 175     if (multi_line)
 176     {
 177         gtk_widget_realize(m_text);
 178         gtk_widget_show(m_text);
 179     }
 180
 181     // we want to be notified about text changes
 182     gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 183       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 184
 185     if (!value.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 void wxTextCtrl::AppendText( const wxString &text )
 313 {
 314     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 315
 316     if (m_windowStyle & wxTE_MULTILINE)
 317     {
 318         /* we'll insert at the last position */
 319         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 320         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 321         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 322     }
 323     else
 324     {
 325         gtk_entry_append_text( GTK_ENTRY(m_text), text );
 326     }
 327 }
 328
 329 bool wxTextCtrl::LoadFile( const wxString &file )
 330 {
 331   wxCHECK_MSG( m_text != NULL, FALSE, "invalid text ctrl" );
 332
 333   if (!wxFileExists(file)) return FALSE;
 334
 335   Clear();
 336
 337   FILE *fp = (FILE*) NULL;
 338   struct stat statb;
 339
 340   if ((stat ((char*) (const char*) file, &statb) == -1) || (statb.st_mode & S_IFMT) != S_IFREG ||
 341       !(fp = fopen ((char*) (const char*) file, "r")))
 342   {
 343       return FALSE;
 344   }
 345   else
 346   {
 347     gint len = statb.st_size;
 348     char *text;
 349     if (!(text = (char*)malloc ((unsigned) (len + 1))))
 350     {
 351       fclose (fp);
 352       return FALSE;
 353     }
 354     if (fread (text, sizeof (char), len, fp) != (size_t) len)
 355     {
 356     }
 357     fclose (fp);
 358
 359     text[len] = 0;
 360
 361     if (m_windowStyle & wxTE_MULTILINE)
 362     {
 363       gint pos = 0;
 364       gtk_editable_insert_text( GTK_EDITABLE(m_text), text, len, &pos );
 365     }
 366     else
 367     {
 368       gtk_entry_set_text( GTK_ENTRY(m_text), text );
 369     }
 370
 371     free (text);
 372     m_modified = FALSE;
 373     return TRUE;
 374   }
 375   return FALSE;
 376 }
 377
 378 bool wxTextCtrl::SaveFile( const wxString &file )
 379 {
 380   wxCHECK_MSG( m_text != NULL, FALSE, "invalid text ctrl" );
 381
 382   if (file == "") return FALSE;
 383
 384   FILE *fp;
 385
 386   if (!(fp = fopen ((char*) (const char*) file, "w")))
 387     {
 388       return FALSE;
 389     }
 390   else
 391     {
 392       char *text = (char*) NULL;
 393       gint len = 0;
 394
 395       if (m_windowStyle & wxTE_MULTILINE)
 396       {
 397         len = gtk_text_get_length( GTK_TEXT(m_text) );
 398         text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 399       }
 400       else
 401       {
 402         text = gtk_entry_get_text( GTK_ENTRY(m_text) );
 403       }
 404
 405       if (fwrite (text, sizeof (char), len, fp) != (size_t) len)
 406       {
 407           // Did not write whole file
 408       }
 409
 410       // Make sure newline terminates the file
 411       if (text[len - 1] != '\n')
 412           fputc ('\n', fp);
 413
 414       fclose (fp);
 415
 416       if (m_windowStyle & wxTE_MULTILINE) g_free( text );
 417
 418       m_modified = FALSE;
 419       return TRUE;
 420     }
 421
 422   return TRUE;
 423 }
 424
 425 wxString wxTextCtrl::GetLineText( long lineNo ) const
 426 {
 427   if (m_windowStyle & wxTE_MULTILINE)
 428   {
 429     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 430     char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 431
 432     if (text)
 433     {
 434         wxString buf("");
 435         long i;
 436         int currentLine = 0;
 437         for (i = 0; currentLine != lineNo && text[i]; i++ )
 438           if (text[i] == '\n')
 439             currentLine++;
 440         // Now get the text
 441         int j;
 442         for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
 443             buf += text[i];
 444
 445         g_free( text );
 446         return buf;
 447     }
 448     else
 449       return wxEmptyString;
 450   }
 451   else
 452   {
 453     if (lineNo == 0) return GetValue();
 454     return wxEmptyString;
 455   }
 456 }
 457
 458 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 459 {
 460   /* If you implement this, don't forget to update the documentation!
 461    * (file docs/latex/wx/text.tex) */
 462     wxFAIL_MSG( "wxTextCtrl::OnDropFiles not implemented" );
 463 }
 464
 465 long wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 466 {
 467     if ( m_windowStyle & wxTE_MULTILINE )
 468     {
 469         wxString text = GetValue();
 470
 471         // cast to prevent warning. But pos really should've been unsigned.
 472         if( (unsigned long)pos > text.Len()  )
 473             return FALSE;
 474
 475         *x=0;   // First Col
 476         *y=0;   // First Line
 477
 478         const char* stop = text.c_str() + pos;
 479         for ( const char *p = text.c_str(); p < stop; p++ )
 480         {
 481             if (*p == '\n')
 482             {
 483                 (*y)++;
 484                 *x=0;
 485             }
 486             else
 487                 (*x)++;
 488         }
 489     }
 490     else // single line control
 491     {
 492         if ( pos <= GTK_ENTRY(m_text)->text_length )
 493         {
 494             *y = 0;
 495             *x = pos;
 496         }
 497         else
 498         {
 499             // index out of bounds
 500             return FALSE;
 501         }
 502     }
 503
 504     return TRUE;
 505 }
 506
 507 long wxTextCtrl::XYToPosition(long x, long y ) const
 508 {
 509     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 510
 511     long pos=0;
 512     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
 513
 514     pos += x;
 515     return pos;
 516 }
 517
 518 int wxTextCtrl::GetLineLength(long lineNo) const
 519 {
 520     wxString str = GetLineText (lineNo);
 521     return (int) str.Length();
 522 }
 523
 524 int wxTextCtrl::GetNumberOfLines() const
 525 {
 526     if (m_windowStyle & wxTE_MULTILINE)
 527     {
 528         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 529         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 530
 531         if (text)
 532         {
 533             int currentLine = 0;
 534             for (int i = 0; i < len; i++ )
 535             {
 536                 if (text[i] == '\n')
 537                     currentLine++;
 538             }
 539             g_free( text );
 540
 541             // currentLine is 0 based, add 1 to get number of lines
 542             return currentLine + 1;
 543         }
 544         else
 545         {
 546             return 0;
 547         }
 548     }
 549     else
 550     {
 551         return 1;
 552     }
 553 }
 554
 555 void wxTextCtrl::SetInsertionPoint( long pos )
 556 {
 557     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 558
 559     if (m_windowStyle & wxTE_MULTILINE)
 560     {
 561         /* seems to be broken in GTK 1.0.X:
 562            gtk_text_set_point( GTK_TEXT(m_text), (int)pos ); */
 563
 564         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
 565           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 566
 567         /* we fake a set_point by inserting and deleting. as the user
 568            isn't supposed to get to know about thos non-sense, we
 569            disconnect so that no events are sent to the user program. */
 570
 571         gint tmp = (gint)pos;
 572         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
 573         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
 574
 575         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 576           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 577
 578         /* bring editable's cursor uptodate. another bug in GTK. */
 579
 580         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 581     }
 582     else
 583     {
 584         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
 585     }
 586 }
 587
 588 void wxTextCtrl::SetInsertionPointEnd()
 589 {
 590     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 591
 592     if (m_windowStyle & wxTE_MULTILINE)
 593         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
 594     else
 595         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
 596 }
 597
 598 void wxTextCtrl::SetEditable( bool editable )
 599 {
 600     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 601
 602     if (m_windowStyle & wxTE_MULTILINE)
 603         gtk_text_set_editable( GTK_TEXT(m_text), editable );
 604     else
 605         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 606 }
 607
 608 void wxTextCtrl::SetSelection( long from, long to )
 609 {
 610     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 611
 612     gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 613 }
 614
 615 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 616 {
 617     wxFAIL_MSG( "wxTextCtrl::ShowPosition not implemented" );
 618 }
 619
 620 long wxTextCtrl::GetInsertionPoint() const
 621 {
 622     wxCHECK_MSG( m_text != NULL, 0, "invalid text ctrl" );
 623
 624     return (long) GTK_EDITABLE(m_text)->current_pos;
 625 }
 626
 627 long wxTextCtrl::GetLastPosition() const
 628 {
 629     wxCHECK_MSG( m_text != NULL, 0, "invalid text ctrl" );
 630
 631     int pos = 0;
 632     if (m_windowStyle & wxTE_MULTILINE)
 633         pos = gtk_text_get_length( GTK_TEXT(m_text) );
 634     else
 635         pos = GTK_ENTRY(m_text)->text_length;
 636
 637     return (long)pos;
 638 }
 639
 640 void wxTextCtrl::Remove( long from, long to )
 641 {
 642     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 643
 644     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 645 }
 646
 647 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 648 {
 649     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 650
 651     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 652     if (value.IsNull()) return;
 653     gint pos = (gint)from;
 654     gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
 655 }
 656
 657 void wxTextCtrl::Cut()
 658 {
 659     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 660
 661 #if (GTK_MINOR_VERSION == 1)
 662     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) );
 663 #else
 664     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
 665 #endif
 666 }
 667
 668 void wxTextCtrl::Copy()
 669 {
 670     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 671
 672 #if (GTK_MINOR_VERSION == 1)
 673     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) );
 674 #else
 675     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
 676 #endif
 677 }
 678
 679 void wxTextCtrl::Paste()
 680 {
 681     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 682
 683 #if (GTK_MINOR_VERSION == 1)
 684     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) );
 685 #else
 686     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
 687 #endif
 688 }
 689
 690 void wxTextCtrl::Clear()
 691 {
 692     SetValue( "" );
 693 }
 694
 695 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 696 {
 697     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 698
 699     if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
 700     {
 701         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 702         event.SetEventObject(this);
 703         if (GetEventHandler()->ProcessEvent(event)) return;
 704     }
 705
 706     key_event.Skip();
 707 }
 708
 709 #ifndef NO_TEXT_WINDOW_STREAM
 710 int wxTextCtrl::overflow( int WXUNUSED(c) )
 711 {
 712     int len = pptr() - pbase();
 713     char *txt = new char[len+1];
 714     strncpy(txt, pbase(), len);
 715     txt[len] = '\0';
 716     (*this) << txt;
 717     setp(pbase(), epptr());
 718     delete[] txt;
 719     return EOF;
 720 }
 721
 722 int wxTextCtrl::sync()
 723 {
 724     int len = pptr() - pbase();
 725     char *txt = new char[len+1];
 726     strncpy(txt, pbase(), len);
 727     txt[len] = '\0';
 728     (*this) << txt;
 729     setp(pbase(), epptr());
 730     delete[] txt;
 731     return 0;
 732 }
 733
 734 int wxTextCtrl::underflow()
 735 {
 736     return EOF;
 737 }
 738
 739 wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
 740 {
 741     AppendText(s);
 742     return *this;
 743 }
 744
 745 wxTextCtrl& wxTextCtrl::operator<<(float f)
 746 {
 747     static char buf[100];
 748     sprintf(buf, "%.2f", f);
 749     AppendText(buf);
 750     return *this;
 751 }
 752
 753 wxTextCtrl& wxTextCtrl::operator<<(double d)
 754 {
 755     static char buf[100];
 756     sprintf(buf, "%.2f", d);
 757     AppendText(buf);
 758     return *this;
 759 }
 760
 761 wxTextCtrl& wxTextCtrl::operator<<(int i)
 762 {
 763     static char buf[100];
 764     sprintf(buf, "%i", i);
 765     AppendText(buf);
 766     return *this;
 767 }
 768
 769 wxTextCtrl& wxTextCtrl::operator<<(long i)
 770 {
 771     static char buf[100];
 772     sprintf(buf, "%ld", i);
 773     AppendText(buf);
 774     return *this;
 775 }
 776
 777 wxTextCtrl& wxTextCtrl::operator<<(const char c)
 778 {
 779     char buf[2];
 780
 781     buf[0] = c;
 782     buf[1] = 0;
 783     AppendText(buf);
 784     return *this;
 785 }
 786 #endif
 787
 788 GtkWidget* wxTextCtrl::GetConnectWidget()
 789 {
 790     return GTK_WIDGET(m_text);
 791 }
 792
 793 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 794 {
 795     if (m_windowStyle & wxTE_MULTILINE)
 796         return (window == GTK_TEXT(m_text)->text_area);
 797     else
 798         return (window == GTK_ENTRY(m_text)->text_area);
 799 }
 800
 801 void wxTextCtrl::SetFont( const wxFont &WXUNUSED(font) )
 802 {
 803     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 804
 805     // doesn't work
 806 }
 807
 808 void wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
 809 {
 810     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 811
 812     // doesn't work
 813 }
 814
 815 void wxTextCtrl::SetBackgroundColour( const wxColour &colour )
 816 {
 817     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 818
 819     wxControl::SetBackgroundColour( colour );
 820
 821     wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
 822     if (sysbg.Red() == colour.Red() &&
 823         sysbg.Green() == colour.Green() &&
 824         sysbg.Blue() == colour.Blue())
 825     {
 826         return;
 827     }
 828
 829     if (!m_backgroundColour.Ok()) return;
 830
 831     if (m_windowStyle & wxTE_MULTILINE)
 832     {
 833         GdkWindow *window = GTK_TEXT(m_text)->text_area;
 834         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 835         gdk_window_set_background( window, m_backgroundColour.GetColor() );
 836         gdk_window_clear( window );
 837     }
 838 }
 839
 840 void wxTextCtrl::ApplyWidgetStyle()
 841 {
 842     if (m_windowStyle & wxTE_MULTILINE)
 843     {
 844         // how ?
 845     }
 846     else
 847     {
 848         SetWidgetStyle();
 849         gtk_widget_set_style( m_text, m_widgetStyle );
 850     }
 851 }
 852