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 (!win->m_hasVMT) return;
  48
  49     if (g_isIdle)
  50         wxapp_install_idle_handler();
  51
  52     win->SetModified();
  53
  54     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
  55     event.SetString( win->GetValue() );
  56     event.SetEventObject( win );
  57     win->GetEventHandler()->ProcessEvent( event );
  58 }
  59
  60 //-----------------------------------------------------------------------------
  61 // "changed" from vertical scrollbar
  62 //-----------------------------------------------------------------------------
  63
  64 static void
  65 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
  66 {
  67     if (!win->m_hasVMT) return;
  68
  69     if (g_isIdle)
  70         wxapp_install_idle_handler();
  71
  72     win->CalculateScrollbar();
  73 }
  74
  75 //-----------------------------------------------------------------------------
  76 //  wxTextCtrl
  77 //-----------------------------------------------------------------------------
  78
  79 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
  80
  81 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
  82     EVT_CHAR(wxTextCtrl::OnChar)
  83
  84     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
  85     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
  86     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
  87     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
  88     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
  89
  90     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
  91     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
  92     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
  93     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
  94     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
  95 END_EVENT_TABLE()
  96
  97 #ifndef NO_TEXT_WINDOW_STREAM
  98 wxTextCtrl::wxTextCtrl() : streambuf()
  99 {
 100     if (allocate()) setp(base(),ebuf());
 101
 102     m_modified = FALSE;
 103 }
 104 #else
 105 wxTextCtrl::wxTextCtrl()
 106 {
 107     m_modified = FALSE;
 108 }
 109 #endif
 110
 111 #ifndef NO_TEXT_WINDOW_STREAM
 112 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
 113       const wxPoint &pos, const wxSize &size,
 114       int style, const wxValidator& validator, const wxString &name ) : streambuf()
 115 {
 116     if (allocate()) setp(base(),ebuf());
 117
 118     m_modified = FALSE;
 119     Create( parent, id, value, pos, size, style, validator, name );
 120 }
 121 #else
 122 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
 123       const wxPoint &pos, const wxSize &size,
 124       int style, const wxValidator& validator, const wxString &name )
 125 {
 126     m_modified = FALSE;
 127     Create( parent, id, value, pos, size, style, validator, name );
 128 }
 129 #endif
 130
 131 bool wxTextCtrl::Create( wxWindow *parent, wxWindowID id, const wxString &value,
 132       const wxPoint &pos, const wxSize &size,
 133       int style, const wxValidator& validator, const wxString &name )
 134 {
 135     m_needParent = TRUE;
 136     m_acceptsFocus = TRUE;
 137
 138     PreCreation( parent, id, pos, size, style, name );
 139
 140     SetValidator( validator );
 141
 142     m_vScrollbarVisible = FALSE;
 143
 144     bool multi_line = (style & wxTE_MULTILINE) != 0;
 145     if (multi_line)
 146     {
 147         /* a multi-line edit control: create a vertical scrollbar by default and
 148            horizontal if requested */
 149         bool bHasHScrollbar = (style & wxHSCROLL) != 0;
 150
 151         /* create our control ... */
 152         m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
 153
 154         /* ... and put into the upper left hand corner of the table */
 155         m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
 156         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 157         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 158                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 159                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 160                        0, 0);
 161
 162         /* always wrap words */
 163         gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
 164         /* put the horizontal scrollbar in the lower left hand corner */
 165         if (bHasHScrollbar)
 166         {
 167             GtkWidget *hscrollbar = gtk_hscrollbar_new(GTK_TEXT(m_text)->hadj);
 168             GTK_WIDGET_UNSET_FLAGS( hscrollbar, GTK_CAN_FOCUS );
 169             gtk_table_attach(GTK_TABLE(m_widget), hscrollbar, 0, 1, 1, 2,
 170                        (GtkAttachOptions)(GTK_EXPAND | GTK_FILL),
 171                        GTK_FILL,
 172                        0, 0);
 173             gtk_widget_show(hscrollbar);
 174
 175 #if (GTK_MINOR_VERSION > 0)
 176             /* don't wrap lines, otherwise we wouldn't need the scrollbar */
 177             gtk_text_set_line_wrap( GTK_TEXT(m_text), FALSE );
 178 #endif
 179         }
 180         /* finally, put the vertical scrollbar in the upper right corner */
 181         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 182         GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
 183         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 184                      GTK_FILL,
 185                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 186                      0, 0);
 187     }
 188     else
 189     {
 190         /* a single-line text control: no need for scrollbars */
 191         m_widget =
 192           m_text = gtk_entry_new();
 193     }
 194
 195     wxSize newSize = size;
 196     if (newSize.x == -1) newSize.x = 80;
 197     if (newSize.y == -1) newSize.y = 26;
 198     SetSize( newSize.x, newSize.y );
 199
 200     m_parent->DoAddChild( this );
 201
 202     PostCreation();
 203
 204     if (multi_line)
 205         gtk_widget_show(m_text);
 206
 207     /* we want to be notified about text changes */
 208     gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 209       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 210
 211     if (multi_line)
 212     {
 213         gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
 214           (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
 215     }
 216
 217     if (!value.IsEmpty())
 218     {
 219         gint tmp = 0;
 220
 221 #if GTK_MINOR_VERSION == 0
 222         // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
 223         // gtk_editable_insert_text()
 224         gtk_widget_realize(m_text);
 225 #endif // GTK 1.0
 226
 227 #if wxUSE_UNICODE
 228         wxWX2MBbuf val = value.mbc_str();
 229         gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
 230 #else // !Unicode
 231         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 232 #endif // Unicode/!Unicode
 233
 234         if (multi_line)
 235         {
 236             /* bring editable's cursor uptodate. bug in GTK. */
 237
 238             GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 239         }
 240     }
 241
 242     if (style & wxTE_PASSWORD)
 243     {
 244         if (!multi_line)
 245             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 246     }
 247
 248     if (style & wxTE_READONLY)
 249     {
 250         if (!multi_line)
 251             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 252     }
 253     else
 254     {
 255         if (multi_line)
 256             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 257     }
 258
 259     SetBackgroundColour( wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW) );
 260     SetForegroundColour( parent->GetForegroundColour() );
 261
 262     Show( TRUE );
 263
 264     return TRUE;
 265 }
 266
 267 void wxTextCtrl::CalculateScrollbar()
 268 {
 269     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 270
 271     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 272
 273     if (adj->upper - adj->page_size < 0.8)
 274     {
 275         if (m_vScrollbarVisible)
 276         {
 277             gtk_widget_hide( m_vScrollbar );
 278             m_vScrollbarVisible = FALSE;
 279         }
 280     }
 281     else
 282     {
 283         if (!m_vScrollbarVisible)
 284         {
 285             gtk_widget_show( m_vScrollbar );
 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     gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
 315       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 316
 317     wxString tmp = _T("");
 318     if (!value.IsNull()) tmp = value;
 319     if (m_windowStyle & wxTE_MULTILINE)
 320     {
 321         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 322         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 323         len = 0;
 324 #if wxUSE_UNICODE
 325         wxWX2MBbuf tmpbuf = tmp.mbc_str();
 326         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmpbuf, strlen(tmpbuf), &len );
 327 #else
 328         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmp.mbc_str(), tmp.Length(), &len );
 329 #endif
 330     }
 331     else
 332     {
 333         gtk_entry_set_text( GTK_ENTRY(m_text), tmp.mbc_str() );
 334     }
 335
 336     gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 337       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 338 }
 339
 340 void wxTextCtrl::WriteText( const wxString &text )
 341 {
 342     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 343
 344     if (text.IsNull()) return;
 345
 346     if (m_windowStyle & wxTE_MULTILINE)
 347     {
 348         /* this moves the cursor pos to behind the inserted text */
 349         gint len = GTK_EDITABLE(m_text)->current_pos;
 350
 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 = gtk_text_get_point( GTK_TEXT(m_text) );
 360     }
 361     else
 362     {
 363         /* this moves the cursor pos to behind the inserted text */
 364         gint len = GTK_EDITABLE(m_text)->current_pos;
 365 #if wxUSE_UNICODE
 366         wxWX2MBbuf buf = text.mbc_str();
 367         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 368 #else
 369         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 370 #endif
 371
 372         /* bring editable's cursor uptodate. bug in GTK. */
 373         GTK_EDITABLE(m_text)->current_pos += text.Len();
 374
 375         /* bring entry's cursor uptodate. bug in GTK. */
 376         gtk_entry_set_position( GTK_ENTRY(m_text), GTK_EDITABLE(m_text)->current_pos );
 377     }
 378 }
 379
 380 void wxTextCtrl::AppendText( const wxString &text )
 381 {
 382     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 383
 384     if (m_windowStyle & wxTE_MULTILINE)
 385     {
 386         /* we'll insert at the last position */
 387         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 388 #if wxUSE_UNICODE
 389         wxWX2MBbuf buf = text.mbc_str();
 390         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 391 #else
 392         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 393 #endif
 394
 395         /* bring editable's cursor uptodate. bug in GTK. */
 396         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 397     }
 398     else
 399     {
 400         gtk_entry_append_text( GTK_ENTRY(m_text), text.mbc_str() );
 401     }
 402 }
 403
 404 bool wxTextCtrl::LoadFile( const wxString &file )
 405 {
 406   wxCHECK_MSG( m_text != NULL, FALSE, _T("invalid text ctrl") );
 407
 408   if (!wxFileExists(file)) return FALSE;
 409
 410   Clear();
 411
 412   FILE *fp = (FILE*) NULL;
 413   struct stat statb;
 414
 415   if ((stat (FNSTRINGCAST file.fn_str(), &statb) == -1) || (statb.st_mode & S_IFMT) != S_IFREG ||
 416       !(fp = fopen (FNSTRINGCAST file.fn_str(), "r")))
 417   {
 418       return FALSE;
 419   }
 420   else
 421   {
 422     gint len = statb.st_size;
 423     char *text;
 424     if (!(text = (char*)malloc ((unsigned) (len + 1))))
 425     {
 426       fclose (fp);
 427       return FALSE;
 428     }
 429     if (fread (text, sizeof (char), len, fp) != (size_t) len)
 430     {
 431     }
 432     fclose (fp);
 433
 434     text[len] = 0;
 435
 436     if (m_windowStyle & wxTE_MULTILINE)
 437     {
 438       gint pos = 0;
 439       gtk_editable_insert_text( GTK_EDITABLE(m_text), text, len, &pos );
 440     }
 441     else
 442     {
 443       gtk_entry_set_text( GTK_ENTRY(m_text), text );
 444     }
 445
 446     free (text);
 447     m_modified = FALSE;
 448     return TRUE;
 449   }
 450   return FALSE;
 451 }
 452
 453 bool wxTextCtrl::SaveFile( const wxString &file )
 454 {
 455   wxCHECK_MSG( m_text != NULL, FALSE, _T("invalid text ctrl") );
 456
 457   if (file == _T("")) return FALSE;
 458
 459   FILE *fp;
 460
 461   if (!(fp = fopen (FNSTRINGCAST file.fn_str(), "w")))
 462     {
 463       return FALSE;
 464     }
 465   else
 466     {
 467       char *text = (char*) NULL;
 468       gint len = 0;
 469
 470       if (m_windowStyle & wxTE_MULTILINE)
 471       {
 472         len = gtk_text_get_length( GTK_TEXT(m_text) );
 473         text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 474       }
 475       else
 476       {
 477         text = gtk_entry_get_text( GTK_ENTRY(m_text) );
 478       }
 479
 480       if (fwrite (text, sizeof (char), len, fp) != (size_t) len)
 481       {
 482           // Did not write whole file
 483       }
 484
 485       // Make sure newline terminates the file
 486       if (text[len - 1] != '\n')
 487           fputc ('\n', fp);
 488
 489       fclose (fp);
 490
 491       if (m_windowStyle & wxTE_MULTILINE) g_free( text );
 492
 493       m_modified = FALSE;
 494       return TRUE;
 495     }
 496
 497   return TRUE;
 498 }
 499
 500 wxString wxTextCtrl::GetLineText( long lineNo ) const
 501 {
 502   if (m_windowStyle & wxTE_MULTILINE)
 503   {
 504     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 505     char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 506
 507     if (text)
 508     {
 509         wxString buf(_T(""));
 510         long i;
 511         int currentLine = 0;
 512         for (i = 0; currentLine != lineNo && text[i]; i++ )
 513           if (text[i] == '\n')
 514             currentLine++;
 515         // Now get the text
 516         int j;
 517         for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
 518             buf += text[i];
 519
 520         g_free( text );
 521         return buf;
 522     }
 523     else
 524       return wxEmptyString;
 525   }
 526   else
 527   {
 528     if (lineNo == 0) return GetValue();
 529     return wxEmptyString;
 530   }
 531 }
 532
 533 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 534 {
 535   /* If you implement this, don't forget to update the documentation!
 536    * (file docs/latex/wx/text.tex) */
 537     wxFAIL_MSG( _T("wxTextCtrl::OnDropFiles not implemented") );
 538 }
 539
 540 long wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 541 {
 542     if ( m_windowStyle & wxTE_MULTILINE )
 543     {
 544         wxString text = GetValue();
 545
 546         // cast to prevent warning. But pos really should've been unsigned.
 547         if( (unsigned long)pos > text.Len()  )
 548             return FALSE;
 549
 550         *x=0;   // First Col
 551         *y=0;   // First Line
 552
 553         const wxChar* stop = text.c_str() + pos;
 554         for ( const wxChar *p = text.c_str(); p < stop; p++ )
 555         {
 556             if (*p == _T('\n'))
 557             {
 558                 (*y)++;
 559                 *x=0;
 560             }
 561             else
 562                 (*x)++;
 563         }
 564     }
 565     else // single line control
 566     {
 567         if ( pos <= GTK_ENTRY(m_text)->text_length )
 568         {
 569             *y = 0;
 570             *x = pos;
 571         }
 572         else
 573         {
 574             // index out of bounds
 575             return FALSE;
 576         }
 577     }
 578
 579     return TRUE;
 580 }
 581
 582 long wxTextCtrl::XYToPosition(long x, long y ) const
 583 {
 584     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 585
 586     long pos=0;
 587     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
 588
 589     pos += x;
 590     return pos;
 591 }
 592
 593 int wxTextCtrl::GetLineLength(long lineNo) const
 594 {
 595     wxString str = GetLineText (lineNo);
 596     return (int) str.Length();
 597 }
 598
 599 int wxTextCtrl::GetNumberOfLines() const
 600 {
 601     if (m_windowStyle & wxTE_MULTILINE)
 602     {
 603         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 604         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 605
 606         if (text)
 607         {
 608             int currentLine = 0;
 609             for (int i = 0; i < len; i++ )
 610             {
 611                 if (text[i] == '\n')
 612                     currentLine++;
 613             }
 614             g_free( text );
 615
 616             // currentLine is 0 based, add 1 to get number of lines
 617             return currentLine + 1;
 618         }
 619         else
 620         {
 621             return 0;
 622         }
 623     }
 624     else
 625     {
 626         return 1;
 627     }
 628 }
 629
 630 void wxTextCtrl::SetInsertionPoint( long pos )
 631 {
 632     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 633
 634     if (m_windowStyle & wxTE_MULTILINE)
 635     {
 636         /* seems to be broken in GTK 1.0.X:
 637            gtk_text_set_point( GTK_TEXT(m_text), (int)pos ); */
 638
 639         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
 640           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 641
 642         /* we fake a set_point by inserting and deleting. as the user
 643            isn't supposed to get to know about thos non-sense, we
 644            disconnect so that no events are sent to the user program. */
 645
 646         gint tmp = (gint)pos;
 647         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
 648         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
 649
 650         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 651           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 652
 653         /* bring editable's cursor uptodate. another bug in GTK. */
 654
 655         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 656     }
 657     else
 658     {
 659         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
 660
 661         /* bring editable's cursor uptodate. bug in GTK. */
 662
 663         GTK_EDITABLE(m_text)->current_pos = pos;
 664     }
 665 }
 666
 667 void wxTextCtrl::SetInsertionPointEnd()
 668 {
 669     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 670
 671     if (m_windowStyle & wxTE_MULTILINE)
 672         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
 673     else
 674         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
 675 }
 676
 677 void wxTextCtrl::SetEditable( bool editable )
 678 {
 679     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 680
 681     if (m_windowStyle & wxTE_MULTILINE)
 682         gtk_text_set_editable( GTK_TEXT(m_text), editable );
 683     else
 684         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 685 }
 686
 687 void wxTextCtrl::SetSelection( long from, long to )
 688 {
 689     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 690
 691     gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 692 }
 693
 694 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 695 {
 696     wxFAIL_MSG( _T("wxTextCtrl::ShowPosition not implemented") );
 697 }
 698
 699 long wxTextCtrl::GetInsertionPoint() const
 700 {
 701     wxCHECK_MSG( m_text != NULL, 0, _T("invalid text ctrl") );
 702
 703     return (long) GTK_EDITABLE(m_text)->current_pos;
 704 }
 705
 706 long wxTextCtrl::GetLastPosition() const
 707 {
 708     wxCHECK_MSG( m_text != NULL, 0, _T("invalid text ctrl") );
 709
 710     int pos = 0;
 711     if (m_windowStyle & wxTE_MULTILINE)
 712         pos = gtk_text_get_length( GTK_TEXT(m_text) );
 713     else
 714         pos = GTK_ENTRY(m_text)->text_length;
 715
 716     return (long)pos;
 717 }
 718
 719 void wxTextCtrl::Remove( long from, long to )
 720 {
 721     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 722
 723     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 724 }
 725
 726 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 727 {
 728     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 729
 730     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 731     if (value.IsNull()) return;
 732     gint pos = (gint)from;
 733 #if wxUSE_UNICODE
 734     wxWX2MBbuf buf = value.mbc_str();
 735     gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
 736 #else
 737     gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
 738 #endif
 739 }
 740
 741 void wxTextCtrl::Cut()
 742 {
 743     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 744
 745 #if (GTK_MINOR_VERSION > 0)
 746     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) );
 747 #else
 748     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
 749 #endif
 750 }
 751
 752 void wxTextCtrl::Copy()
 753 {
 754     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 755
 756 #if (GTK_MINOR_VERSION > 0)
 757     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) );
 758 #else
 759     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
 760 #endif
 761 }
 762
 763 void wxTextCtrl::Paste()
 764 {
 765     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 766
 767 #if (GTK_MINOR_VERSION > 0)
 768     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) );
 769 #else
 770     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
 771 #endif
 772 }
 773
 774 bool wxTextCtrl::CanCopy() const
 775 {
 776     // Can copy if there's a selection
 777     long from, to;
 778     GetSelection(& from, & to);
 779     return (from != to) ;
 780 }
 781
 782 bool wxTextCtrl::CanCut() const
 783 {
 784     // Can cut if there's a selection
 785     long from, to;
 786     GetSelection(& from, & to);
 787     return (from != to) ;
 788 }
 789
 790 bool wxTextCtrl::CanPaste() const
 791 {
 792     return IsEditable() ;
 793 }
 794
 795 // Undo/redo
 796 void wxTextCtrl::Undo()
 797 {
 798     // TODO
 799     wxFAIL_MSG( _T("wxTextCtrl::Undo not implemented") );
 800 }
 801
 802 void wxTextCtrl::Redo()
 803 {
 804     // TODO
 805     wxFAIL_MSG( _T("wxTextCtrl::Redo not implemented") );
 806 }
 807
 808 bool wxTextCtrl::CanUndo() const
 809 {
 810     // TODO
 811     wxFAIL_MSG( _T("wxTextCtrl::CanUndo not implemented") );
 812     return FALSE;
 813 }
 814
 815 bool wxTextCtrl::CanRedo() const
 816 {
 817     // TODO
 818     wxFAIL_MSG( _T("wxTextCtrl::CanRedo not implemented") );
 819     return FALSE;
 820 }
 821
 822 // If the return values from and to are the same, there is no
 823 // selection.
 824 void wxTextCtrl::GetSelection(long* from, long* to) const
 825 {
 826     // TODO
 827     *from = 0;
 828     *to = 0;
 829     wxFAIL_MSG( _T("wxTextCtrl::GetSelection not implemented") );
 830 }
 831
 832 bool wxTextCtrl::IsEditable() const
 833 {
 834     // TODO
 835     wxFAIL_MSG( _T("wxTextCtrl::IsEditable not implemented") );
 836     return FALSE;
 837 }
 838
 839 void wxTextCtrl::Clear()
 840 {
 841     SetValue( _T("") );
 842 }
 843
 844 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 845 {
 846     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 847
 848     if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
 849     {
 850         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 851         event.SetEventObject(this);
 852         if (GetEventHandler()->ProcessEvent(event)) return;
 853     }
 854
 855     key_event.Skip();
 856 }
 857
 858 #ifndef NO_TEXT_WINDOW_STREAM
 859 int wxTextCtrl::overflow( int WXUNUSED(c) )
 860 {
 861     int len = pptr() - pbase();
 862     char *txt = new char[len+1];
 863     strncpy(txt, pbase(), len);
 864     txt[len] = '\0';
 865     (*this) << txt;
 866     setp(pbase(), epptr());
 867     delete[] txt;
 868     return EOF;
 869 }
 870
 871 int wxTextCtrl::sync()
 872 {
 873     int len = pptr() - pbase();
 874     char *txt = new char[len+1];
 875     strncpy(txt, pbase(), len);
 876     txt[len] = '\0';
 877     (*this) << txt;
 878     setp(pbase(), epptr());
 879     delete[] txt;
 880     return 0;
 881 }
 882
 883 int wxTextCtrl::underflow()
 884 {
 885     return EOF;
 886 }
 887
 888 wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
 889 {
 890     AppendText(s);
 891     return *this;
 892 }
 893
 894 wxTextCtrl& wxTextCtrl::operator<<(float f)
 895 {
 896     static char buf[100];
 897     sprintf(buf, "%.2f", f);
 898     AppendText(buf);
 899     return *this;
 900 }
 901
 902 wxTextCtrl& wxTextCtrl::operator<<(double d)
 903 {
 904     static char buf[100];
 905     sprintf(buf, "%.2f", d);
 906     AppendText(buf);
 907     return *this;
 908 }
 909
 910 wxTextCtrl& wxTextCtrl::operator<<(int i)
 911 {
 912     static char buf[100];
 913     sprintf(buf, "%i", i);
 914     AppendText(buf);
 915     return *this;
 916 }
 917
 918 wxTextCtrl& wxTextCtrl::operator<<(long i)
 919 {
 920     static char buf[100];
 921     sprintf(buf, "%ld", i);
 922     AppendText(buf);
 923     return *this;
 924 }
 925
 926 wxTextCtrl& wxTextCtrl::operator<<(const char c)
 927 {
 928     char buf[2];
 929
 930     buf[0] = c;
 931     buf[1] = 0;
 932     AppendText(buf);
 933     return *this;
 934 }
 935 #endif
 936
 937 GtkWidget* wxTextCtrl::GetConnectWidget()
 938 {
 939     return GTK_WIDGET(m_text);
 940 }
 941
 942 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 943 {
 944     if (m_windowStyle & wxTE_MULTILINE)
 945         return (window == GTK_TEXT(m_text)->text_area);
 946     else
 947         return (window == GTK_ENTRY(m_text)->text_area);
 948 }
 949
 950 bool wxTextCtrl::SetFont( const wxFont &WXUNUSED(font) )
 951 {
 952     wxCHECK_MSG( m_text != NULL, FALSE, _T("invalid text ctrl") );
 953
 954     // doesn't work
 955     return FALSE;
 956 }
 957
 958 bool wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
 959 {
 960     wxCHECK_MSG( m_text != NULL, FALSE, _T("invalid text ctrl") );
 961
 962     // doesn't work
 963     return FALSE;
 964 }
 965
 966 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
 967 {
 968     wxCHECK_MSG( m_text != NULL, FALSE, _T("invalid text ctrl") );
 969
 970     wxControl::SetBackgroundColour( colour );
 971
 972     if (!m_widget->window)
 973         return FALSE;
 974
 975     wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
 976     if (sysbg.Red() == colour.Red() &&
 977         sysbg.Green() == colour.Green() &&
 978         sysbg.Blue() == colour.Blue())
 979     {
 980         return FALSE; // FIXME or TRUE?
 981     }
 982
 983     if (!m_backgroundColour.Ok())
 984         return FALSE;
 985
 986     if (m_windowStyle & wxTE_MULTILINE)
 987     {
 988         GdkWindow *window = GTK_TEXT(m_text)->text_area;
 989         if (!window)
 990             return FALSE;
 991         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 992         gdk_window_set_background( window, m_backgroundColour.GetColor() );
 993         gdk_window_clear( window );
 994     }
 995
 996     return TRUE;
 997 }
 998
 999 void wxTextCtrl::ApplyWidgetStyle()
1000 {
1001     if (m_windowStyle & wxTE_MULTILINE)
1002     {
1003         // how ?
1004     }
1005     else
1006     {
1007         SetWidgetStyle();
1008         gtk_widget_set_style( m_text, m_widgetStyle );
1009     }
1010 }
1011
1012 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1013 {
1014     Cut();
1015 }
1016
1017 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1018 {
1019     Copy();
1020 }
1021
1022 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1023 {
1024     Paste();
1025 }
1026
1027 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1028 {
1029     Undo();
1030 }
1031
1032 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1033 {
1034     Redo();
1035 }
1036
1037 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1038 {
1039     event.Enable( CanCut() );
1040 }
1041
1042 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1043 {
1044     event.Enable( CanCopy() );
1045 }
1046
1047 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1048 {
1049     event.Enable( CanPaste() );
1050 }
1051
1052 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1053 {
1054     event.Enable( CanUndo() );
1055 }
1056
1057 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1058 {
1059     event.Enable( CanRedo() );
1060 }