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->GetId() );
  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         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 156                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 157                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 158                        0, 0);
 159
 160         /* always wrap words */
 161         gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
 162         /* put the horizontal scrollbar in the lower left hand corner */
 163         if (bHasHScrollbar)
 164         {
 165             GtkWidget *hscrollbar = gtk_hscrollbar_new(GTK_TEXT(m_text)->hadj);
 166             GTK_WIDGET_UNSET_FLAGS( hscrollbar, GTK_CAN_FOCUS );
 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 #if (GTK_MINOR_VERSION > 0)
 174             /* don't wrap lines, otherwise we wouldn't need the scrollbar */
 175             gtk_text_set_line_wrap( GTK_TEXT(m_text), FALSE );
 176 #endif
 177         }
 178         /* finally, put the vertical scrollbar in the upper right corner */
 179         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 180         GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
 181         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 182                      GTK_FILL,
 183                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 184                      0, 0);
 185     }
 186     else
 187     {
 188         /* a single-line text control: no need for scrollbars */
 189         m_widget =
 190           m_text = gtk_entry_new();
 191     }
 192
 193     wxSize newSize = size;
 194     if (newSize.x == -1) newSize.x = 80;
 195     if (newSize.y == -1) newSize.y = 26;
 196     SetSize( newSize.x, newSize.y );
 197
 198     m_parent->DoAddChild( this );
 199
 200     PostCreation();
 201
 202     if (multi_line)
 203         gtk_widget_show(m_text);
 204
 205     /* we want to be notified about text changes */
 206     gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 207       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 208
 209     if (multi_line)
 210     {
 211         gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
 212           (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
 213     }
 214
 215     if (!value.IsEmpty())
 216     {
 217         gint tmp = 0;
 218
 219 #if GTK_MINOR_VERSION == 0
 220         // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
 221         // gtk_editable_insert_text()
 222         gtk_widget_realize(m_text);
 223 #endif // GTK 1.0
 224
 225 #if wxUSE_UNICODE
 226         wxWX2MBbuf val = value.mbc_str();
 227         gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
 228 #else // !Unicode
 229         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 230 #endif // Unicode/!Unicode
 231
 232         if (multi_line)
 233         {
 234             /* bring editable's cursor uptodate. bug in GTK. */
 235
 236             GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 237         }
 238     }
 239
 240     if (style & wxTE_PASSWORD)
 241     {
 242         if (!multi_line)
 243             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 244     }
 245
 246     if (style & wxTE_READONLY)
 247     {
 248         if (!multi_line)
 249             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 250     }
 251     else
 252     {
 253         if (multi_line)
 254             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 255     }
 256
 257     SetBackgroundColour( parent->GetBackgroundColour() );
 258     SetForegroundColour( parent->GetForegroundColour() );
 259
 260     Show( TRUE );
 261
 262     return TRUE;
 263 }
 264
 265 void wxTextCtrl::CalculateScrollbar()
 266 {
 267     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 268
 269     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 270
 271     if (adj->upper - adj->page_size < 0.8)
 272     {
 273         if (m_vScrollbarVisible)
 274         {
 275             gtk_widget_hide( m_vScrollbar );
 276
 277             m_vScrollbarVisible = FALSE;
 278         }
 279     }
 280     else
 281     {
 282         if (!m_vScrollbarVisible)
 283         {
 284             gtk_widget_show( m_vScrollbar );
 285
 286             m_vScrollbarVisible = TRUE;
 287         }
 288     }
 289 }
 290
 291 wxString wxTextCtrl::GetValue() const
 292 {
 293     wxCHECK_MSG( m_text != NULL, _T(""), _T("invalid text ctrl") );
 294
 295     wxString tmp;
 296     if (m_windowStyle & wxTE_MULTILINE)
 297     {
 298         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 299         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 300         tmp = wxString(text,*wxConv_current);
 301         g_free( text );
 302     }
 303     else
 304     {
 305         tmp = wxString(gtk_entry_get_text( GTK_ENTRY(m_text) ),*wxConv_current);
 306     }
 307     return tmp;
 308 }
 309
 310 void wxTextCtrl::SetValue( const wxString &value )
 311 {
 312     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 313
 314     wxString tmp = _T("");
 315     if (!value.IsNull()) tmp = value;
 316     if (m_windowStyle & wxTE_MULTILINE)
 317     {
 318         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 319         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 320         len = 0;
 321 #if wxUSE_UNICODE
 322         wxWX2MBbuf tmpbuf = tmp.mbc_str();
 323         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmpbuf, strlen(tmpbuf), &len );
 324 #else
 325         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmp.mbc_str(), tmp.Length(), &len );
 326 #endif
 327     }
 328     else
 329     {
 330         gtk_entry_set_text( GTK_ENTRY(m_text), tmp.mbc_str() );
 331     }
 332 }
 333
 334 void wxTextCtrl::WriteText( const wxString &text )
 335 {
 336     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 337
 338     if (text.IsNull()) return;
 339
 340     if (m_windowStyle & wxTE_MULTILINE)
 341     {
 342         /* this moves the cursor pos to behind the inserted text */
 343         gint len = GTK_EDITABLE(m_text)->current_pos;
 344
 345 #if wxUSE_UNICODE
 346         wxWX2MBbuf buf = text.mbc_str();
 347         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 348 #else
 349         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 350 #endif
 351
 352         /* bring editable's cursor uptodate. bug in GTK. */
 353         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 354     }
 355     else
 356     {
 357         /* this moves the cursor pos to behind the inserted text */
 358         gint len = GTK_EDITABLE(m_text)->current_pos;
 359 #if wxUSE_UNICODE
 360         wxWX2MBbuf buf = text.mbc_str();
 361         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 362 #else
 363         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 364 #endif
 365
 366         /* bring editable's cursor uptodate. bug in GTK. */
 367         GTK_EDITABLE(m_text)->current_pos += text.Len();
 368
 369         /* bring entry's cursor uptodate. bug in GTK. */
 370         gtk_entry_set_position( GTK_ENTRY(m_text), GTK_EDITABLE(m_text)->current_pos );
 371     }
 372 }
 373
 374 void wxTextCtrl::AppendText( const wxString &text )
 375 {
 376     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 377
 378     if (m_windowStyle & wxTE_MULTILINE)
 379     {
 380         /* we'll insert at the last position */
 381         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 382 #if wxUSE_UNICODE
 383         wxWX2MBbuf buf = text.mbc_str();
 384         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 385 #else
 386         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 387 #endif
 388
 389         /* bring editable's cursor uptodate. bug in GTK. */
 390         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 391     }
 392     else
 393     {
 394         gtk_entry_append_text( GTK_ENTRY(m_text), text.mbc_str() );
 395     }
 396 }
 397
 398 bool wxTextCtrl::LoadFile( const wxString &file )
 399 {
 400   wxCHECK_MSG( m_text != NULL, FALSE, _T("invalid text ctrl") );
 401
 402   if (!wxFileExists(file)) return FALSE;
 403
 404   Clear();
 405
 406   FILE *fp = (FILE*) NULL;
 407   struct stat statb;
 408
 409   if ((stat (FNSTRINGCAST file.fn_str(), &statb) == -1) || (statb.st_mode & S_IFMT) != S_IFREG ||
 410       !(fp = fopen (FNSTRINGCAST file.fn_str(), "r")))
 411   {
 412       return FALSE;
 413   }
 414   else
 415   {
 416     gint len = statb.st_size;
 417     char *text;
 418     if (!(text = (char*)malloc ((unsigned) (len + 1))))
 419     {
 420       fclose (fp);
 421       return FALSE;
 422     }
 423     if (fread (text, sizeof (char), len, fp) != (size_t) len)
 424     {
 425     }
 426     fclose (fp);
 427
 428     text[len] = 0;
 429
 430     if (m_windowStyle & wxTE_MULTILINE)
 431     {
 432       gint pos = 0;
 433       gtk_editable_insert_text( GTK_EDITABLE(m_text), text, len, &pos );
 434     }
 435     else
 436     {
 437       gtk_entry_set_text( GTK_ENTRY(m_text), text );
 438     }
 439
 440     free (text);
 441     m_modified = FALSE;
 442     return TRUE;
 443   }
 444   return FALSE;
 445 }
 446
 447 bool wxTextCtrl::SaveFile( const wxString &file )
 448 {
 449   wxCHECK_MSG( m_text != NULL, FALSE, _T("invalid text ctrl") );
 450
 451   if (file == _T("")) return FALSE;
 452
 453   FILE *fp;
 454
 455   if (!(fp = fopen (FNSTRINGCAST file.fn_str(), "w")))
 456     {
 457       return FALSE;
 458     }
 459   else
 460     {
 461       char *text = (char*) NULL;
 462       gint len = 0;
 463
 464       if (m_windowStyle & wxTE_MULTILINE)
 465       {
 466         len = gtk_text_get_length( GTK_TEXT(m_text) );
 467         text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 468       }
 469       else
 470       {
 471         text = gtk_entry_get_text( GTK_ENTRY(m_text) );
 472       }
 473
 474       if (fwrite (text, sizeof (char), len, fp) != (size_t) len)
 475       {
 476           // Did not write whole file
 477       }
 478
 479       // Make sure newline terminates the file
 480       if (text[len - 1] != '\n')
 481           fputc ('\n', fp);
 482
 483       fclose (fp);
 484
 485       if (m_windowStyle & wxTE_MULTILINE) g_free( text );
 486
 487       m_modified = FALSE;
 488       return TRUE;
 489     }
 490
 491   return TRUE;
 492 }
 493
 494 wxString wxTextCtrl::GetLineText( long lineNo ) const
 495 {
 496   if (m_windowStyle & wxTE_MULTILINE)
 497   {
 498     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 499     char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 500
 501     if (text)
 502     {
 503         wxString buf(_T(""));
 504         long i;
 505         int currentLine = 0;
 506         for (i = 0; currentLine != lineNo && text[i]; i++ )
 507           if (text[i] == '\n')
 508             currentLine++;
 509         // Now get the text
 510         int j;
 511         for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
 512             buf += text[i];
 513
 514         g_free( text );
 515         return buf;
 516     }
 517     else
 518       return wxEmptyString;
 519   }
 520   else
 521   {
 522     if (lineNo == 0) return GetValue();
 523     return wxEmptyString;
 524   }
 525 }
 526
 527 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 528 {
 529   /* If you implement this, don't forget to update the documentation!
 530    * (file docs/latex/wx/text.tex) */
 531     wxFAIL_MSG( _T("wxTextCtrl::OnDropFiles not implemented") );
 532 }
 533
 534 long wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 535 {
 536     if ( m_windowStyle & wxTE_MULTILINE )
 537     {
 538         wxString text = GetValue();
 539
 540         // cast to prevent warning. But pos really should've been unsigned.
 541         if( (unsigned long)pos > text.Len()  )
 542             return FALSE;
 543
 544         *x=0;   // First Col
 545         *y=0;   // First Line
 546
 547         const wxChar* stop = text.c_str() + pos;
 548         for ( const wxChar *p = text.c_str(); p < stop; p++ )
 549         {
 550             if (*p == _T('\n'))
 551             {
 552                 (*y)++;
 553                 *x=0;
 554             }
 555             else
 556                 (*x)++;
 557         }
 558     }
 559     else // single line control
 560     {
 561         if ( pos <= GTK_ENTRY(m_text)->text_length )
 562         {
 563             *y = 0;
 564             *x = pos;
 565         }
 566         else
 567         {
 568             // index out of bounds
 569             return FALSE;
 570         }
 571     }
 572
 573     return TRUE;
 574 }
 575
 576 long wxTextCtrl::XYToPosition(long x, long y ) const
 577 {
 578     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 579
 580     long pos=0;
 581     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
 582
 583     pos += x;
 584     return pos;
 585 }
 586
 587 int wxTextCtrl::GetLineLength(long lineNo) const
 588 {
 589     wxString str = GetLineText (lineNo);
 590     return (int) str.Length();
 591 }
 592
 593 int wxTextCtrl::GetNumberOfLines() const
 594 {
 595     if (m_windowStyle & wxTE_MULTILINE)
 596     {
 597         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 598         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 599
 600         if (text)
 601         {
 602             int currentLine = 0;
 603             for (int i = 0; i < len; i++ )
 604             {
 605                 if (text[i] == '\n')
 606                     currentLine++;
 607             }
 608             g_free( text );
 609
 610             // currentLine is 0 based, add 1 to get number of lines
 611             return currentLine + 1;
 612         }
 613         else
 614         {
 615             return 0;
 616         }
 617     }
 618     else
 619     {
 620         return 1;
 621     }
 622 }
 623
 624 void wxTextCtrl::SetInsertionPoint( long pos )
 625 {
 626     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 627
 628     if (m_windowStyle & wxTE_MULTILINE)
 629     {
 630         /* seems to be broken in GTK 1.0.X:
 631            gtk_text_set_point( GTK_TEXT(m_text), (int)pos ); */
 632
 633         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
 634           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 635
 636         /* we fake a set_point by inserting and deleting. as the user
 637            isn't supposed to get to know about thos non-sense, we
 638            disconnect so that no events are sent to the user program. */
 639
 640         gint tmp = (gint)pos;
 641         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
 642         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
 643
 644         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 645           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 646
 647         /* bring editable's cursor uptodate. another bug in GTK. */
 648
 649         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 650     }
 651     else
 652     {
 653         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
 654
 655         /* bring editable's cursor uptodate. bug in GTK. */
 656
 657         GTK_EDITABLE(m_text)->current_pos = pos;
 658     }
 659 }
 660
 661 void wxTextCtrl::SetInsertionPointEnd()
 662 {
 663     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 664
 665     if (m_windowStyle & wxTE_MULTILINE)
 666         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
 667     else
 668         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
 669 }
 670
 671 void wxTextCtrl::SetEditable( bool editable )
 672 {
 673     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 674
 675     if (m_windowStyle & wxTE_MULTILINE)
 676         gtk_text_set_editable( GTK_TEXT(m_text), editable );
 677     else
 678         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 679 }
 680
 681 void wxTextCtrl::SetSelection( long from, long to )
 682 {
 683     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 684
 685     gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 686 }
 687
 688 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 689 {
 690     wxFAIL_MSG( _T("wxTextCtrl::ShowPosition not implemented") );
 691 }
 692
 693 long wxTextCtrl::GetInsertionPoint() const
 694 {
 695     wxCHECK_MSG( m_text != NULL, 0, _T("invalid text ctrl") );
 696
 697     return (long) GTK_EDITABLE(m_text)->current_pos;
 698 }
 699
 700 long wxTextCtrl::GetLastPosition() const
 701 {
 702     wxCHECK_MSG( m_text != NULL, 0, _T("invalid text ctrl") );
 703
 704     int pos = 0;
 705     if (m_windowStyle & wxTE_MULTILINE)
 706         pos = gtk_text_get_length( GTK_TEXT(m_text) );
 707     else
 708         pos = GTK_ENTRY(m_text)->text_length;
 709
 710     return (long)pos;
 711 }
 712
 713 void wxTextCtrl::Remove( long from, long to )
 714 {
 715     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 716
 717     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 718 }
 719
 720 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 721 {
 722     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 723
 724     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 725     if (value.IsNull()) return;
 726     gint pos = (gint)from;
 727 #if wxUSE_UNICODE
 728     wxWX2MBbuf buf = value.mbc_str();
 729     gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
 730 #else
 731     gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
 732 #endif
 733 }
 734
 735 void wxTextCtrl::Cut()
 736 {
 737     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 738
 739 #if (GTK_MINOR_VERSION > 0)
 740     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) );
 741 #else
 742     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
 743 #endif
 744 }
 745
 746 void wxTextCtrl::Copy()
 747 {
 748     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 749
 750 #if (GTK_MINOR_VERSION > 0)
 751     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) );
 752 #else
 753     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
 754 #endif
 755 }
 756
 757 void wxTextCtrl::Paste()
 758 {
 759     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 760
 761 #if (GTK_MINOR_VERSION > 0)
 762     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) );
 763 #else
 764     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
 765 #endif
 766 }
 767
 768 bool wxTextCtrl::CanCopy() const
 769 {
 770     // Can copy if there's a selection
 771     long from, to;
 772     GetSelection(& from, & to);
 773     return (from != to) ;
 774 }
 775
 776 bool wxTextCtrl::CanCut() const
 777 {
 778     // Can cut if there's a selection
 779     long from, to;
 780     GetSelection(& from, & to);
 781     return (from != to) ;
 782 }
 783
 784 bool wxTextCtrl::CanPaste() const
 785 {
 786     return IsEditable() ;
 787 }
 788
 789 // Undo/redo
 790 void wxTextCtrl::Undo()
 791 {
 792     // TODO
 793     wxFAIL_MSG( _T("wxTextCtrl::Undo not implemented") );
 794 }
 795
 796 void wxTextCtrl::Redo()
 797 {
 798     // TODO
 799     wxFAIL_MSG( _T("wxTextCtrl::Redo not implemented") );
 800 }
 801
 802 bool wxTextCtrl::CanUndo() const
 803 {
 804     // TODO
 805     wxFAIL_MSG( _T("wxTextCtrl::CanUndo not implemented") );
 806     return FALSE;
 807 }
 808
 809 bool wxTextCtrl::CanRedo() const
 810 {
 811     // TODO
 812     wxFAIL_MSG( _T("wxTextCtrl::CanRedo not implemented") );
 813     return FALSE;
 814 }
 815
 816 // If the return values from and to are the same, there is no
 817 // selection.
 818 void wxTextCtrl::GetSelection(long* from, long* to) const
 819 {
 820     // TODO
 821     *from = 0;
 822     *to = 0;
 823     wxFAIL_MSG( _T("wxTextCtrl::GetSelection not implemented") );
 824 }
 825
 826 bool wxTextCtrl::IsEditable() const
 827 {
 828     // TODO
 829     wxFAIL_MSG( _T("wxTextCtrl::IsEditable not implemented") );
 830     return FALSE;
 831 }
 832
 833 void wxTextCtrl::Clear()
 834 {
 835     SetValue( _T("") );
 836 }
 837
 838 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 839 {
 840     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 841
 842     if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
 843     {
 844         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 845         event.SetEventObject(this);
 846         if (GetEventHandler()->ProcessEvent(event)) return;
 847     }
 848
 849     key_event.Skip();
 850 }
 851
 852 #ifndef NO_TEXT_WINDOW_STREAM
 853 int wxTextCtrl::overflow( int WXUNUSED(c) )
 854 {
 855     int len = pptr() - pbase();
 856     char *txt = new char[len+1];
 857     strncpy(txt, pbase(), len);
 858     txt[len] = '\0';
 859     (*this) << txt;
 860     setp(pbase(), epptr());
 861     delete[] txt;
 862     return EOF;
 863 }
 864
 865 int wxTextCtrl::sync()
 866 {
 867     int len = pptr() - pbase();
 868     char *txt = new char[len+1];
 869     strncpy(txt, pbase(), len);
 870     txt[len] = '\0';
 871     (*this) << txt;
 872     setp(pbase(), epptr());
 873     delete[] txt;
 874     return 0;
 875 }
 876
 877 int wxTextCtrl::underflow()
 878 {
 879     return EOF;
 880 }
 881
 882 wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
 883 {
 884     AppendText(s);
 885     return *this;
 886 }
 887
 888 wxTextCtrl& wxTextCtrl::operator<<(float f)
 889 {
 890     static char buf[100];
 891     sprintf(buf, "%.2f", f);
 892     AppendText(buf);
 893     return *this;
 894 }
 895
 896 wxTextCtrl& wxTextCtrl::operator<<(double d)
 897 {
 898     static char buf[100];
 899     sprintf(buf, "%.2f", d);
 900     AppendText(buf);
 901     return *this;
 902 }
 903
 904 wxTextCtrl& wxTextCtrl::operator<<(int i)
 905 {
 906     static char buf[100];
 907     sprintf(buf, "%i", i);
 908     AppendText(buf);
 909     return *this;
 910 }
 911
 912 wxTextCtrl& wxTextCtrl::operator<<(long i)
 913 {
 914     static char buf[100];
 915     sprintf(buf, "%ld", i);
 916     AppendText(buf);
 917     return *this;
 918 }
 919
 920 wxTextCtrl& wxTextCtrl::operator<<(const char c)
 921 {
 922     char buf[2];
 923
 924     buf[0] = c;
 925     buf[1] = 0;
 926     AppendText(buf);
 927     return *this;
 928 }
 929 #endif
 930
 931 GtkWidget* wxTextCtrl::GetConnectWidget()
 932 {
 933     return GTK_WIDGET(m_text);
 934 }
 935
 936 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 937 {
 938     if (m_windowStyle & wxTE_MULTILINE)
 939         return (window == GTK_TEXT(m_text)->text_area);
 940     else
 941         return (window == GTK_ENTRY(m_text)->text_area);
 942 }
 943
 944 bool wxTextCtrl::SetFont( const wxFont &WXUNUSED(font) )
 945 {
 946     wxCHECK_MSG( m_text != NULL, FALSE, _T("invalid text ctrl") );
 947
 948     // doesn't work
 949     return FALSE;
 950 }
 951
 952 bool wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
 953 {
 954     wxCHECK_MSG( m_text != NULL, FALSE, _T("invalid text ctrl") );
 955
 956     // doesn't work
 957     return FALSE;
 958 }
 959
 960 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
 961 {
 962     wxCHECK_MSG( m_text != NULL, FALSE, _T("invalid text ctrl") );
 963
 964     wxControl::SetBackgroundColour( colour );
 965
 966     if (!m_widget->window)
 967         return FALSE;
 968
 969     wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
 970     if (sysbg.Red() == colour.Red() &&
 971         sysbg.Green() == colour.Green() &&
 972         sysbg.Blue() == colour.Blue())
 973     {
 974         return FALSE; // FIXME or TRUE?
 975     }
 976
 977     if (!m_backgroundColour.Ok())
 978         return FALSE;
 979
 980     if (m_windowStyle & wxTE_MULTILINE)
 981     {
 982         GdkWindow *window = GTK_TEXT(m_text)->text_area;
 983         if (!window)
 984             return FALSE;
 985         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 986         gdk_window_set_background( window, m_backgroundColour.GetColor() );
 987         gdk_window_clear( window );
 988     }
 989
 990     return TRUE;
 991 }
 992
 993 void wxTextCtrl::ApplyWidgetStyle()
 994 {
 995     if (m_windowStyle & wxTE_MULTILINE)
 996     {
 997         // how ?
 998     }
 999     else
1000     {
1001         SetWidgetStyle();
1002         gtk_widget_set_style( m_text, m_widgetStyle );
1003     }
1004 }
1005
1006 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1007 {
1008     Cut();
1009 }
1010
1011 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1012 {
1013     Copy();
1014 }
1015
1016 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1017 {
1018     Paste();
1019 }
1020
1021 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1022 {
1023     Undo();
1024 }
1025
1026 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1027 {
1028     Redo();
1029 }
1030
1031 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1032 {
1033     event.Enable( CanCut() );
1034 }
1035
1036 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1037 {
1038     event.Enable( CanCopy() );
1039 }
1040
1041 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1042 {
1043     event.Enable( CanPaste() );
1044 }
1045
1046 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1047 {
1048     event.Enable( CanUndo() );
1049 }
1050
1051 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1052 {
1053     event.Enable( CanRedo() );
1054 }