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 // idle system
  29 //-----------------------------------------------------------------------------
  30
  31 extern void wxapp_install_idle_handler();
  32 extern bool g_isIdle;
  33
  34 //-----------------------------------------------------------------------------
  35 // data
  36 //-----------------------------------------------------------------------------
  37
  38 extern bool   g_blockEventsOnDrag;
  39
  40 //-----------------------------------------------------------------------------
  41 //  "changed"
  42 //-----------------------------------------------------------------------------
  43
  44 static void
  45 gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
  46 {
  47     if (g_isIdle) wxapp_install_idle_handler();
  48
  49     if (!win->m_hasVMT) return;
  50
  51     win->SetModified();
  52
  53     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->m_windowId );
  54     event.SetString( win->GetValue() );
  55     event.SetEventObject( win );
  56     win->GetEventHandler()->ProcessEvent( event );
  57 }
  58
  59 //-----------------------------------------------------------------------------
  60 // "changed" from vertical scrollbar
  61 //-----------------------------------------------------------------------------
  62
  63 static void
  64 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
  65 {
  66     if (g_isIdle) wxapp_install_idle_handler();
  67
  68     win->CalculateScrollbar();
  69
  70     if (!win->m_hasVMT) return;
  71 }
  72
  73 //-----------------------------------------------------------------------------
  74 //  wxTextCtrl
  75 //-----------------------------------------------------------------------------
  76
  77 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
  78
  79 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
  80     EVT_CHAR(wxTextCtrl::OnChar)
  81
  82     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
  83     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
  84     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
  85     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
  86     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
  87
  88     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
  89     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
  90     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
  91     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
  92     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
  93 END_EVENT_TABLE()
  94
  95 #ifndef NO_TEXT_WINDOW_STREAM
  96 wxTextCtrl::wxTextCtrl() : streambuf()
  97 {
  98     if (allocate()) setp(base(),ebuf());
  99
 100     m_modified = FALSE;
 101 }
 102 #else
 103 wxTextCtrl::wxTextCtrl()
 104 {
 105     m_modified = FALSE;
 106 }
 107 #endif
 108
 109 #ifndef NO_TEXT_WINDOW_STREAM
 110 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
 111       const wxPoint &pos, const wxSize &size,
 112       int style, const wxValidator& validator, const wxString &name ) : streambuf()
 113 {
 114     if (allocate()) setp(base(),ebuf());
 115
 116     m_modified = FALSE;
 117     Create( parent, id, value, pos, size, style, validator, name );
 118 }
 119 #else
 120 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
 121       const wxPoint &pos, const wxSize &size,
 122       int style, const wxValidator& validator, const wxString &name )
 123 {
 124     m_modified = FALSE;
 125     Create( parent, id, value, pos, size, style, validator, name );
 126 }
 127 #endif
 128
 129 bool wxTextCtrl::Create( wxWindow *parent, wxWindowID id, const wxString &value,
 130       const wxPoint &pos, const wxSize &size,
 131       int style, const wxValidator& validator, const wxString &name )
 132 {
 133     m_needParent = TRUE;
 134     m_acceptsFocus = TRUE;
 135
 136     PreCreation( parent, id, pos, size, style, name );
 137
 138     SetValidator( validator );
 139
 140     m_vScrollbarVisible = FALSE;
 141
 142     bool multi_line = (style & wxTE_MULTILINE) != 0;
 143     if (multi_line)
 144     {
 145         /* a multi-line edit control: create a vertical scrollbar by default and
 146            horizontal if requested */
 147         bool bHasHScrollbar = (style & wxHSCROLL) != 0;
 148
 149         /* create our control ... */
 150         m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
 151
 152         /* ... and put into the upper left hand corner of the table */
 153         m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
 154         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 155
 156         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 157                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 158                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 159                        0, 0);
 160
 161         /* put the horizontal scrollbar in the lower left hand corner */
 162         if (bHasHScrollbar)
 163         {
 164             GtkWidget *hscrollbar = gtk_hscrollbar_new(GTK_TEXT(m_text)->hadj);
 165             GTK_WIDGET_UNSET_FLAGS( hscrollbar, GTK_CAN_FOCUS );
 166
 167             gtk_table_attach(GTK_TABLE(m_widget), hscrollbar, 0, 1, 1, 2,
 168                        (GtkAttachOptions)(GTK_EXPAND | GTK_FILL),
 169                        GTK_FILL,
 170                        0, 0);
 171             gtk_widget_show(hscrollbar);
 172         }
 173
 174         /* finally, put the vertical scrollbar in the upper right corner */
 175         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 176         GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
 177
 178         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 179                      GTK_FILL,
 180                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 181                      0, 0);
 182     }
 183     else
 184     {
 185         /* a single-line text control: no need for scrollbars */
 186         m_widget =
 187           m_text = gtk_entry_new();
 188     }
 189
 190     wxSize newSize = size;
 191     if (newSize.x == -1) newSize.x = 80;
 192     if (newSize.y == -1) newSize.y = 26;
 193     SetSize( newSize.x, newSize.y );
 194
 195     m_parent->AddChild( this );
 196
 197     (m_parent->m_insertCallback)( m_parent, this );
 198
 199     PostCreation();
 200
 201     if (multi_line)
 202         gtk_widget_show(m_text);
 203
 204     /* we want to be notified about text changes */
 205     gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 206       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 207
 208     if (multi_line)
 209     {
 210         gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
 211           (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
 212     }
 213
 214     if (!value.IsEmpty())
 215     {
 216         gint tmp = 0;
 217 #if wxUSE_UNICODE
 218         wxWX2MBbuf val = value.mbc_str();
 219         gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
 220 #else
 221         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 222 #endif
 223
 224         if (multi_line)
 225         {
 226             /* bring editable's cursor uptodate. bug in GTK. */
 227
 228             GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 229         }
 230     }
 231
 232     if (style & wxTE_PASSWORD)
 233     {
 234         if (!multi_line)
 235             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 236     }
 237
 238     if (style & wxTE_READONLY)
 239     {
 240         if (!multi_line)
 241             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 242     }
 243     else
 244     {
 245         if (multi_line)
 246             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 247     }
 248
 249     SetBackgroundColour( parent->GetBackgroundColour() );
 250     SetForegroundColour( parent->GetForegroundColour() );
 251
 252     Show( TRUE );
 253
 254     return TRUE;
 255 }
 256
 257 void wxTextCtrl::CalculateScrollbar()
 258 {
 259     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 260
 261     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 262
 263     if (adj->upper - adj->page_size < 0.8)
 264     {
 265         if (m_vScrollbarVisible)
 266         {
 267             gtk_widget_hide( m_vScrollbar );
 268
 269             m_vScrollbarVisible = FALSE;
 270         }
 271     }
 272     else
 273     {
 274         if (!m_vScrollbarVisible)
 275         {
 276             gtk_widget_show( m_vScrollbar );
 277
 278             m_vScrollbarVisible = TRUE;
 279         }
 280     }
 281 }
 282
 283 wxString wxTextCtrl::GetValue() const
 284 {
 285     wxCHECK_MSG( m_text != NULL, _T(""), _T("invalid text ctrl") );
 286
 287     wxString tmp;
 288     if (m_windowStyle & wxTE_MULTILINE)
 289     {
 290         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 291         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 292         tmp = wxString(text,*wxConv_current);
 293         g_free( text );
 294     }
 295     else
 296     {
 297         tmp = wxString(gtk_entry_get_text( GTK_ENTRY(m_text) ),*wxConv_current);
 298     }
 299     return tmp;
 300 }
 301
 302 void wxTextCtrl::SetValue( const wxString &value )
 303 {
 304     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 305
 306     wxString tmp = _T("");
 307     if (!value.IsNull()) tmp = value;
 308     if (m_windowStyle & wxTE_MULTILINE)
 309     {
 310         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 311         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 312         len = 0;
 313 #if wxUSE_UNICODE
 314         wxWX2MBbuf tmpbuf = tmp.mbc_str();
 315         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmpbuf, strlen(tmpbuf), &len );
 316 #else
 317         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmp.mbc_str(), tmp.Length(), &len );
 318 #endif
 319     }
 320     else
 321     {
 322         gtk_entry_set_text( GTK_ENTRY(m_text), tmp.mbc_str() );
 323     }
 324 }
 325
 326 void wxTextCtrl::WriteText( const wxString &text )
 327 {
 328     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 329
 330     if (text.IsNull()) return;
 331
 332     if (m_windowStyle & wxTE_MULTILINE)
 333     {
 334         /* this moves the cursor pos to behind the inserted text */
 335         gint len = GTK_EDITABLE(m_text)->current_pos;
 336
 337 #if wxUSE_UNICODE
 338         wxWX2MBbuf buf = text.mbc_str();
 339         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 340 #else
 341         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 342 #endif
 343
 344         /* bring editable's cursor uptodate. bug in GTK. */
 345         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 346     }
 347     else
 348     {
 349         /* this moves the cursor pos to behind the inserted text */
 350         gint len = GTK_EDITABLE(m_text)->current_pos;
 351 #if wxUSE_UNICODE
 352         wxWX2MBbuf buf = text.mbc_str();
 353         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 354 #else
 355         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 356 #endif
 357
 358         /* bring editable's cursor uptodate. bug in GTK. */
 359         GTK_EDITABLE(m_text)->current_pos += text.Len();
 360
 361         /* bring entry's cursor uptodate. bug in GTK. */
 362         gtk_entry_set_position( GTK_ENTRY(m_text), GTK_EDITABLE(m_text)->current_pos );
 363     }
 364 }
 365
 366 void wxTextCtrl::AppendText( const wxString &text )
 367 {
 368     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 369
 370     if (m_windowStyle & wxTE_MULTILINE)
 371     {
 372         /* we'll insert at the last position */
 373         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 374 #if wxUSE_UNICODE
 375         wxWX2MBbuf buf = text.mbc_str();
 376         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 377 #else
 378         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 379 #endif
 380
 381         /* bring editable's cursor uptodate. bug in GTK. */
 382         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 383     }
 384     else
 385     {
 386         gtk_entry_append_text( GTK_ENTRY(m_text), text.mbc_str() );
 387     }
 388 }
 389
 390 bool wxTextCtrl::LoadFile( const wxString &file )
 391 {
 392   wxCHECK_MSG( m_text != NULL, FALSE, _T("invalid text ctrl") );
 393
 394   if (!wxFileExists(file)) return FALSE;
 395
 396   Clear();
 397
 398   FILE *fp = (FILE*) NULL;
 399   struct stat statb;
 400
 401   if ((stat (FNSTRINGCAST file.fn_str(), &statb) == -1) || (statb.st_mode & S_IFMT) != S_IFREG ||
 402       !(fp = fopen (FNSTRINGCAST file.fn_str(), "r")))
 403   {
 404       return FALSE;
 405   }
 406   else
 407   {
 408     gint len = statb.st_size;
 409     char *text;
 410     if (!(text = (char*)malloc ((unsigned) (len + 1))))
 411     {
 412       fclose (fp);
 413       return FALSE;
 414     }
 415     if (fread (text, sizeof (char), len, fp) != (size_t) len)
 416     {
 417     }
 418     fclose (fp);
 419
 420     text[len] = 0;
 421
 422     if (m_windowStyle & wxTE_MULTILINE)
 423     {
 424       gint pos = 0;
 425       gtk_editable_insert_text( GTK_EDITABLE(m_text), text, len, &pos );
 426     }
 427     else
 428     {
 429       gtk_entry_set_text( GTK_ENTRY(m_text), text );
 430     }
 431
 432     free (text);
 433     m_modified = FALSE;
 434     return TRUE;
 435   }
 436   return FALSE;
 437 }
 438
 439 bool wxTextCtrl::SaveFile( const wxString &file )
 440 {
 441   wxCHECK_MSG( m_text != NULL, FALSE, _T("invalid text ctrl") );
 442
 443   if (file == _T("")) return FALSE;
 444
 445   FILE *fp;
 446
 447   if (!(fp = fopen (FNSTRINGCAST file.fn_str(), "w")))
 448     {
 449       return FALSE;
 450     }
 451   else
 452     {
 453       char *text = (char*) NULL;
 454       gint len = 0;
 455
 456       if (m_windowStyle & wxTE_MULTILINE)
 457       {
 458         len = gtk_text_get_length( GTK_TEXT(m_text) );
 459         text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 460       }
 461       else
 462       {
 463         text = gtk_entry_get_text( GTK_ENTRY(m_text) );
 464       }
 465
 466       if (fwrite (text, sizeof (char), len, fp) != (size_t) len)
 467       {
 468           // Did not write whole file
 469       }
 470
 471       // Make sure newline terminates the file
 472       if (text[len - 1] != '\n')
 473           fputc ('\n', fp);
 474
 475       fclose (fp);
 476
 477       if (m_windowStyle & wxTE_MULTILINE) g_free( text );
 478
 479       m_modified = FALSE;
 480       return TRUE;
 481     }
 482
 483   return TRUE;
 484 }
 485
 486 wxString wxTextCtrl::GetLineText( long lineNo ) const
 487 {
 488   if (m_windowStyle & wxTE_MULTILINE)
 489   {
 490     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 491     char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 492
 493     if (text)
 494     {
 495         wxString buf(_T(""));
 496         long i;
 497         int currentLine = 0;
 498         for (i = 0; currentLine != lineNo && text[i]; i++ )
 499           if (text[i] == '\n')
 500             currentLine++;
 501         // Now get the text
 502         int j;
 503         for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
 504             buf += text[i];
 505
 506         g_free( text );
 507         return buf;
 508     }
 509     else
 510       return wxEmptyString;
 511   }
 512   else
 513   {
 514     if (lineNo == 0) return GetValue();
 515     return wxEmptyString;
 516   }
 517 }
 518
 519 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 520 {
 521   /* If you implement this, don't forget to update the documentation!
 522    * (file docs/latex/wx/text.tex) */
 523     wxFAIL_MSG( _T("wxTextCtrl::OnDropFiles not implemented") );
 524 }
 525
 526 long wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 527 {
 528     if ( m_windowStyle & wxTE_MULTILINE )
 529     {
 530         wxString text = GetValue();
 531
 532         // cast to prevent warning. But pos really should've been unsigned.
 533         if( (unsigned long)pos > text.Len()  )
 534             return FALSE;
 535
 536         *x=0;   // First Col
 537         *y=0;   // First Line
 538
 539         const wxChar* stop = text.c_str() + pos;
 540         for ( const wxChar *p = text.c_str(); p < stop; p++ )
 541         {
 542             if (*p == _T('\n'))
 543             {
 544                 (*y)++;
 545                 *x=0;
 546             }
 547             else
 548                 (*x)++;
 549         }
 550     }
 551     else // single line control
 552     {
 553         if ( pos <= GTK_ENTRY(m_text)->text_length )
 554         {
 555             *y = 0;
 556             *x = pos;
 557         }
 558         else
 559         {
 560             // index out of bounds
 561             return FALSE;
 562         }
 563     }
 564
 565     return TRUE;
 566 }
 567
 568 long wxTextCtrl::XYToPosition(long x, long y ) const
 569 {
 570     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 571
 572     long pos=0;
 573     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
 574
 575     pos += x;
 576     return pos;
 577 }
 578
 579 int wxTextCtrl::GetLineLength(long lineNo) const
 580 {
 581     wxString str = GetLineText (lineNo);
 582     return (int) str.Length();
 583 }
 584
 585 int wxTextCtrl::GetNumberOfLines() const
 586 {
 587     if (m_windowStyle & wxTE_MULTILINE)
 588     {
 589         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 590         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 591
 592         if (text)
 593         {
 594             int currentLine = 0;
 595             for (int i = 0; i < len; i++ )
 596             {
 597                 if (text[i] == '\n')
 598                     currentLine++;
 599             }
 600             g_free( text );
 601
 602             // currentLine is 0 based, add 1 to get number of lines
 603             return currentLine + 1;
 604         }
 605         else
 606         {
 607             return 0;
 608         }
 609     }
 610     else
 611     {
 612         return 1;
 613     }
 614 }
 615
 616 void wxTextCtrl::SetInsertionPoint( long pos )
 617 {
 618     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 619
 620     if (m_windowStyle & wxTE_MULTILINE)
 621     {
 622         /* seems to be broken in GTK 1.0.X:
 623            gtk_text_set_point( GTK_TEXT(m_text), (int)pos ); */
 624
 625         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
 626           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 627
 628         /* we fake a set_point by inserting and deleting. as the user
 629            isn't supposed to get to know about thos non-sense, we
 630            disconnect so that no events are sent to the user program. */
 631
 632         gint tmp = (gint)pos;
 633         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
 634         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
 635
 636         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 637           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 638
 639         /* bring editable's cursor uptodate. another bug in GTK. */
 640
 641         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 642     }
 643     else
 644     {
 645         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
 646
 647         /* bring editable's cursor uptodate. bug in GTK. */
 648
 649         GTK_EDITABLE(m_text)->current_pos = pos;
 650     }
 651 }
 652
 653 void wxTextCtrl::SetInsertionPointEnd()
 654 {
 655     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 656
 657     if (m_windowStyle & wxTE_MULTILINE)
 658         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
 659     else
 660         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
 661 }
 662
 663 void wxTextCtrl::SetEditable( bool editable )
 664 {
 665     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 666
 667     if (m_windowStyle & wxTE_MULTILINE)
 668         gtk_text_set_editable( GTK_TEXT(m_text), editable );
 669     else
 670         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 671 }
 672
 673 void wxTextCtrl::SetSelection( long from, long to )
 674 {
 675     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 676
 677     gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 678 }
 679
 680 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 681 {
 682     wxFAIL_MSG( _T("wxTextCtrl::ShowPosition not implemented") );
 683 }
 684
 685 long wxTextCtrl::GetInsertionPoint() const
 686 {
 687     wxCHECK_MSG( m_text != NULL, 0, _T("invalid text ctrl") );
 688
 689     return (long) GTK_EDITABLE(m_text)->current_pos;
 690 }
 691
 692 long wxTextCtrl::GetLastPosition() const
 693 {
 694     wxCHECK_MSG( m_text != NULL, 0, _T("invalid text ctrl") );
 695
 696     int pos = 0;
 697     if (m_windowStyle & wxTE_MULTILINE)
 698         pos = gtk_text_get_length( GTK_TEXT(m_text) );
 699     else
 700         pos = GTK_ENTRY(m_text)->text_length;
 701
 702     return (long)pos;
 703 }
 704
 705 void wxTextCtrl::Remove( long from, long to )
 706 {
 707     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 708
 709     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 710 }
 711
 712 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 713 {
 714     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 715
 716     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 717     if (value.IsNull()) return;
 718     gint pos = (gint)from;
 719 #if wxUSE_UNICODE
 720     wxWX2MBbuf buf = value.mbc_str();
 721     gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
 722 #else
 723     gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
 724 #endif
 725 }
 726
 727 void wxTextCtrl::Cut()
 728 {
 729     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 730
 731 #if (GTK_MINOR_VERSION > 0)
 732     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) );
 733 #else
 734     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
 735 #endif
 736 }
 737
 738 void wxTextCtrl::Copy()
 739 {
 740     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 741
 742 #if (GTK_MINOR_VERSION > 0)
 743     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) );
 744 #else
 745     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
 746 #endif
 747 }
 748
 749 void wxTextCtrl::Paste()
 750 {
 751     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 752
 753 #if (GTK_MINOR_VERSION > 0)
 754     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) );
 755 #else
 756     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
 757 #endif
 758 }
 759
 760 bool wxTextCtrl::CanCopy() const
 761 {
 762     // Can copy if there's a selection
 763     long from, to;
 764     GetSelection(& from, & to);
 765     return (from != to) ;
 766 }
 767
 768 bool wxTextCtrl::CanCut() const
 769 {
 770     // Can cut if there's a selection
 771     long from, to;
 772     GetSelection(& from, & to);
 773     return (from != to) ;
 774 }
 775
 776 bool wxTextCtrl::CanPaste() const
 777 {
 778     return IsEditable() ;
 779 }
 780
 781 // Undo/redo
 782 void wxTextCtrl::Undo()
 783 {
 784     // TODO
 785     wxFAIL_MSG( _T("wxTextCtrl::Undo not implemented") );
 786 }
 787
 788 void wxTextCtrl::Redo()
 789 {
 790     // TODO
 791     wxFAIL_MSG( _T("wxTextCtrl::Redo not implemented") );
 792 }
 793
 794 bool wxTextCtrl::CanUndo() const
 795 {
 796     // TODO
 797     wxFAIL_MSG( _T("wxTextCtrl::CanUndo not implemented") );
 798     return FALSE;
 799 }
 800
 801 bool wxTextCtrl::CanRedo() const
 802 {
 803     // TODO
 804     wxFAIL_MSG( _T("wxTextCtrl::CanRedo not implemented") );
 805     return FALSE;
 806 }
 807
 808 // If the return values from and to are the same, there is no
 809 // selection.
 810 void wxTextCtrl::GetSelection(long* from, long* to) const
 811 {
 812     // TODO
 813     *from = 0;
 814     *to = 0;
 815     wxFAIL_MSG( _T("wxTextCtrl::GetSelection not implemented") );
 816 }
 817
 818 bool wxTextCtrl::IsEditable() const
 819 {
 820     // TODO
 821     wxFAIL_MSG( _T("wxTextCtrl::IsEditable not implemented") );
 822     return FALSE;
 823 }
 824
 825 void wxTextCtrl::Clear()
 826 {
 827     SetValue( _T("") );
 828 }
 829
 830 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 831 {
 832     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 833
 834     if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
 835     {
 836         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 837         event.SetEventObject(this);
 838         if (GetEventHandler()->ProcessEvent(event)) return;
 839     }
 840
 841     key_event.Skip();
 842 }
 843
 844 #ifndef NO_TEXT_WINDOW_STREAM
 845 int wxTextCtrl::overflow( int WXUNUSED(c) )
 846 {
 847     int len = pptr() - pbase();
 848     char *txt = new char[len+1];
 849     strncpy(txt, pbase(), len);
 850     txt[len] = '\0';
 851     (*this) << txt;
 852     setp(pbase(), epptr());
 853     delete[] txt;
 854     return EOF;
 855 }
 856
 857 int wxTextCtrl::sync()
 858 {
 859     int len = pptr() - pbase();
 860     char *txt = new char[len+1];
 861     strncpy(txt, pbase(), len);
 862     txt[len] = '\0';
 863     (*this) << txt;
 864     setp(pbase(), epptr());
 865     delete[] txt;
 866     return 0;
 867 }
 868
 869 int wxTextCtrl::underflow()
 870 {
 871     return EOF;
 872 }
 873
 874 wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
 875 {
 876     AppendText(s);
 877     return *this;
 878 }
 879
 880 wxTextCtrl& wxTextCtrl::operator<<(float f)
 881 {
 882     static char buf[100];
 883     sprintf(buf, "%.2f", f);
 884     AppendText(buf);
 885     return *this;
 886 }
 887
 888 wxTextCtrl& wxTextCtrl::operator<<(double d)
 889 {
 890     static char buf[100];
 891     sprintf(buf, "%.2f", d);
 892     AppendText(buf);
 893     return *this;
 894 }
 895
 896 wxTextCtrl& wxTextCtrl::operator<<(int i)
 897 {
 898     static char buf[100];
 899     sprintf(buf, "%i", i);
 900     AppendText(buf);
 901     return *this;
 902 }
 903
 904 wxTextCtrl& wxTextCtrl::operator<<(long i)
 905 {
 906     static char buf[100];
 907     sprintf(buf, "%ld", i);
 908     AppendText(buf);
 909     return *this;
 910 }
 911
 912 wxTextCtrl& wxTextCtrl::operator<<(const char c)
 913 {
 914     char buf[2];
 915
 916     buf[0] = c;
 917     buf[1] = 0;
 918     AppendText(buf);
 919     return *this;
 920 }
 921 #endif
 922
 923 GtkWidget* wxTextCtrl::GetConnectWidget()
 924 {
 925     return GTK_WIDGET(m_text);
 926 }
 927
 928 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 929 {
 930     if (m_windowStyle & wxTE_MULTILINE)
 931         return (window == GTK_TEXT(m_text)->text_area);
 932     else
 933         return (window == GTK_ENTRY(m_text)->text_area);
 934 }
 935
 936 void wxTextCtrl::SetFont( const wxFont &WXUNUSED(font) )
 937 {
 938     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 939
 940     // doesn't work
 941 }
 942
 943 void wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
 944 {
 945     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 946
 947     // doesn't work
 948 }
 949
 950 void wxTextCtrl::SetBackgroundColour( const wxColour &colour )
 951 {
 952     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 953
 954     wxControl::SetBackgroundColour( colour );
 955
 956     wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
 957     if (sysbg.Red() == colour.Red() &&
 958         sysbg.Green() == colour.Green() &&
 959         sysbg.Blue() == colour.Blue())
 960     {
 961         return;
 962     }
 963
 964     if (!m_backgroundColour.Ok()) return;
 965
 966     if (m_windowStyle & wxTE_MULTILINE)
 967     {
 968         GdkWindow *window = GTK_TEXT(m_text)->text_area;
 969         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 970         gdk_window_set_background( window, m_backgroundColour.GetColor() );
 971         gdk_window_clear( window );
 972     }
 973 }
 974
 975 void wxTextCtrl::ApplyWidgetStyle()
 976 {
 977     if (m_windowStyle & wxTE_MULTILINE)
 978     {
 979         // how ?
 980     }
 981     else
 982     {
 983         SetWidgetStyle();
 984         gtk_widget_set_style( m_text, m_widgetStyle );
 985     }
 986 }
 987
 988 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
 989 {
 990     Cut();
 991 }
 992
 993 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
 994 {
 995     Copy();
 996 }
 997
 998 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
 999 {
1000     Paste();
1001 }
1002
1003 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1004 {
1005     Undo();
1006 }
1007
1008 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1009 {
1010     Redo();
1011 }
1012
1013 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1014 {
1015     event.Enable( CanCut() );
1016 }
1017
1018 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1019 {
1020     event.Enable( CanCopy() );
1021 }
1022
1023 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1024 {
1025     event.Enable( CanPaste() );
1026 }
1027
1028 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1029 {
1030     event.Enable( CanUndo() );
1031 }
1032
1033 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1034 {
1035     event.Enable( CanRedo() );
1036 }