src/gtk1/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        textctrl.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  11 #pragma implementation "textctrl.h"
  12 #endif
  13
  14 // For compilers that support precompilation, includes "wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #include "wx/textctrl.h"
  18 #include "wx/utils.h"
  19 #include "wx/intl.h"
  20 #include "wx/log.h"
  21 #include "wx/settings.h"
  22 #include "wx/panel.h"
  23 #include "wx/strconv.h"
  24 #include "wx/fontutil.h"        // for wxNativeFontInfo (GetNativeFontInfo())
  25
  26 #include <sys/types.h>
  27 #include <sys/stat.h>
  28 #include <ctype.h>
  29 #include "wx/math.h"
  30
  31 #include "wx/gtk/private.h"
  32 #include <gdk/gdkkeysyms.h>
  33
  34 //-----------------------------------------------------------------------------
  35 // idle system
  36 //-----------------------------------------------------------------------------
  37
  38 extern void wxapp_install_idle_handler();
  39 extern bool g_isIdle;
  40
  41 //-----------------------------------------------------------------------------
  42 // data
  43 //-----------------------------------------------------------------------------
  44
  45 extern wxCursor   g_globalCursor;
  46 extern wxWindowGTK *g_delayedFocus;
  47
  48 // ----------------------------------------------------------------------------
  49 // helpers
  50 // ----------------------------------------------------------------------------
  51
  52 #ifdef __WXGTK20__
  53 extern "C" {
  54 static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
  55                              GtkTextTag *tag,
  56                              GtkTextIter *start,
  57                              GtkTextIter *end,
  58                              char *prefix)
  59 {
  60     gchar *name;
  61     g_object_get (tag, "name", &name, NULL);
  62
  63     if (!name || strncmp(name, prefix, strlen(prefix)))
  64         // anonymous tag or not starting with prefix - don't remove
  65         g_signal_stop_emission_by_name(buffer, "remove_tag");
  66
  67     g_free(name);
  68 }
  69 }
  70
  71 extern "C" {
  72 static void wxGtkTextApplyTagsFromAttr(GtkTextBuffer *text_buffer,
  73                                        const wxTextAttr& attr,
  74                                        GtkTextIter *start,
  75                                        GtkTextIter *end)
  76 {
  77     static gchar buf[1024];
  78     GtkTextTag *tag;
  79
  80     gulong remove_handler_id = g_signal_connect( text_buffer, "remove_tag",
  81             G_CALLBACK(wxGtkOnRemoveTag), gpointer("WX"));
  82     gtk_text_buffer_remove_all_tags(text_buffer, start, end);
  83     g_signal_handler_disconnect( text_buffer, remove_handler_id );
  84
  85     if (attr.HasFont())
  86     {
  87         char *font_string;
  88         PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
  89         font_string = pango_font_description_to_string(font_description);
  90         g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string);
  91         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
  92                                          buf );
  93         if (!tag)
  94             tag = gtk_text_buffer_create_tag( text_buffer, buf,
  95                                               "font-desc", font_description,
  96                                               NULL );
  97         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
  98         g_free (font_string);
  99     }
 100
 101     if (attr.HasTextColour())
 102     {
 103         GdkColor *colFg = attr.GetTextColour().GetColor();
 104         g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
 105                    colFg->red, colFg->green, colFg->blue);
 106         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 107                                          buf );
 108         if (!tag)
 109             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 110                                               "foreground-gdk", colFg, NULL );
 111         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 112     }
 113
 114     if (attr.HasBackgroundColour())
 115     {
 116         GdkColor *colBg = attr.GetBackgroundColour().GetColor();
 117         g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
 118                    colBg->red, colBg->green, colBg->blue);
 119         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 120                                          buf );
 121         if (!tag)
 122             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 123                                               "background-gdk", colBg, NULL );
 124         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 125     }
 126
 127     if (attr.HasAlignment())
 128     {
 129         GtkTextIter para_start, para_end = *end;
 130         gtk_text_buffer_get_iter_at_line( text_buffer,
 131                                           &para_start,
 132                                           gtk_text_iter_get_line(start) );
 133         gtk_text_iter_forward_line(&para_end);
 134
 135         remove_handler_id = g_signal_connect( text_buffer, "remove_tag",
 136                                               G_CALLBACK(wxGtkOnRemoveTag),
 137                                               gpointer("WXALIGNMENT"));
 138         gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
 139         g_signal_handler_disconnect( text_buffer, remove_handler_id );
 140
 141         GtkJustification align;
 142         switch (attr.GetAlignment())
 143         {
 144             default:
 145                 align = GTK_JUSTIFY_LEFT;
 146                 break;
 147             case wxTEXT_ALIGNMENT_RIGHT:
 148                 align = GTK_JUSTIFY_RIGHT;
 149                 break;
 150             case wxTEXT_ALIGNMENT_CENTER:
 151                 align = GTK_JUSTIFY_CENTER;
 152                 break;
 153             // gtk+ doesn't support justify as of gtk+-2.7.4
 154         }
 155
 156         g_snprintf(buf, sizeof(buf), "WXALIGNMENT %d", align);
 157         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 158                                          buf );
 159         if (!tag)
 160             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 161                                               "justification", align, NULL );
 162         gtk_text_buffer_apply_tag( text_buffer, tag, &para_start, &para_end );
 163     }
 164 }
 165 }
 166
 167 extern "C" {
 168 static void wxGtkTextInsert(GtkWidget *text,
 169                             GtkTextBuffer *text_buffer,
 170                             const wxTextAttr& attr,
 171                             wxCharBuffer buffer)
 172
 173 {
 174     gint start_offset;
 175     GtkTextIter iter, start;
 176
 177     gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
 178                                      gtk_text_buffer_get_insert (text_buffer) );
 179     start_offset = gtk_text_iter_get_offset (&iter);
 180     gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
 181
 182     gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
 183
 184     wxGtkTextApplyTagsFromAttr(text_buffer, attr, &start, &iter);
 185 }
 186 }
 187 #else
 188 extern "C" {
 189 static void wxGtkTextInsert(GtkWidget *text,
 190                             const wxTextAttr& attr,
 191                             const char *txt,
 192                             size_t len)
 193 {
 194     GdkFont *font = attr.HasFont() ? attr.GetFont().GetInternalFont()
 195                                    : NULL;
 196
 197     GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
 198                                            : NULL;
 199
 200     GdkColor *colBg = attr.HasBackgroundColour()
 201                         ? attr.GetBackgroundColour().GetColor()
 202                         : NULL;
 203
 204     gtk_text_insert( GTK_TEXT(text), font, colFg, colBg, txt, len );
 205 }
 206 }
 207 #endif // GTK 1.x
 208
 209 // ----------------------------------------------------------------------------
 210 // "insert_text" for GtkEntry
 211 // ----------------------------------------------------------------------------
 212
 213 extern "C" {
 214 static void
 215 gtk_insert_text_callback(GtkEditable *editable,
 216                          const gchar *new_text,
 217                          gint new_text_length,
 218                          gint *position,
 219                          wxTextCtrl *win)
 220 {
 221     if (g_isIdle)
 222         wxapp_install_idle_handler();
 223
 224     // we should only be called if we have a max len limit at all
 225     GtkEntry *entry = GTK_ENTRY (editable);
 226
 227     wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
 228
 229     // check that we don't overflow the max length limit
 230     //
 231     // FIXME: this doesn't work when we paste a string which is going to be
 232     //        truncated
 233     if ( entry->text_length == entry->text_max_length )
 234     {
 235         // we don't need to run the base class version at all
 236         gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text");
 237
 238         // remember that the next changed signal is to be ignored to avoid
 239         // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
 240         win->IgnoreNextTextUpdate();
 241
 242         // and generate the correct one ourselves
 243         wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
 244         event.SetEventObject(win);
 245         event.SetString(win->GetValue());
 246         win->GetEventHandler()->ProcessEvent( event );
 247     }
 248 }
 249 }
 250
 251 #ifdef __WXGTK20__
 252 // Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
 253
 254 extern "C" {
 255 static void
 256 au_apply_tag_callback(GtkTextBuffer *buffer,
 257                       GtkTextTag *tag,
 258                       GtkTextIter *start,
 259                       GtkTextIter *end,
 260                       gpointer textctrl)
 261 {
 262     if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
 263         g_signal_stop_emission_by_name(buffer, "apply_tag");
 264 }
 265 }
 266
 267 //-----------------------------------------------------------------------------
 268 //  GtkTextCharPredicates for gtk_text_iter_*_find_char
 269 //-----------------------------------------------------------------------------
 270
 271 extern "C" {
 272 static gboolean
 273 pred_whitespace (gunichar ch, gpointer user_data)
 274 {
 275     return g_unichar_isspace(ch);
 276 }
 277 }
 278
 279 extern "C" {
 280 static gboolean
 281 pred_non_whitespace (gunichar ch, gpointer user_data)
 282 {
 283     return !g_unichar_isspace(ch);
 284 }
 285 }
 286
 287 extern "C" {
 288 static gboolean
 289 pred_nonpunct (gunichar ch, gpointer user_data)
 290 {
 291     return !g_unichar_ispunct(ch);
 292 }
 293 }
 294
 295 extern "C" {
 296 static gboolean
 297 pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
 298 {
 299     return !g_unichar_ispunct(ch) || ch == '/';
 300 }
 301 }
 302
 303 //-----------------------------------------------------------------------------
 304 //  Check for links between s and e and correct tags as necessary
 305 //-----------------------------------------------------------------------------
 306
 307 // This function should be made match better while being efficient at one point.
 308 // Most probably with a row of regular expressions.
 309 extern "C" {
 310 static void
 311 au_check_word( GtkTextIter *s, GtkTextIter *e )
 312 {
 313     static const char *URIPrefixes[] =
 314     {
 315         "http://",
 316         "ftp://",
 317         "www.",
 318         "ftp.",
 319         "mailto://",
 320         "https://",
 321         "file://",
 322         "nntp://",
 323         "news://",
 324         "telnet://",
 325         "mms://",
 326         "gopher://",
 327         "prospero://",
 328         "wais://",
 329     };
 330
 331     GtkTextIter start = *s, end = *e;
 332     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 333
 334     // Get our special link tag
 335     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 336
 337     // Get rid of punctuation from beginning and end.
 338     // Might want to move this to au_check_range if an improved link checking doesn't
 339     // use some intelligent punctuation checking itself (beware of undesired iter modifications).
 340     if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
 341         gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
 342
 343     gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
 344     gtk_text_iter_forward_char(&end);
 345
 346     gchar* text = gtk_text_iter_get_text( &start, &end );
 347     size_t len = strlen(text), prefix_len;
 348     size_t n;
 349
 350     for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
 351     {
 352         prefix_len = strlen(URIPrefixes[n]);
 353         if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
 354             break;
 355     }
 356
 357     if(n < WXSIZEOF(URIPrefixes))
 358     {
 359         gulong signal_id = g_signal_handler_find(buffer,
 360                                                  (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
 361                                                  0, 0, NULL,
 362                                                  (gpointer)au_apply_tag_callback, NULL);
 363
 364         g_signal_handler_block(buffer, signal_id);
 365         gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
 366         g_signal_handler_unblock(buffer, signal_id);
 367     }
 368 }
 369 }
 370
 371 extern "C" {
 372 static void
 373 au_check_range(GtkTextIter *s,
 374                GtkTextIter *range_end)
 375 {
 376     GtkTextIter range_start = *s;
 377     GtkTextIter word_end;
 378     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 379     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 380
 381     gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
 382
 383     if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
 384         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 385
 386     while(!gtk_text_iter_equal(&range_start, range_end))
 387     {
 388         word_end = range_start;
 389         gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
 390
 391         // Now we should have a word delimited by range_start and word_end, correct link tags
 392         au_check_word(&range_start, &word_end);
 393
 394         range_start = word_end;
 395         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 396     }
 397 }
 398 }
 399
 400 //-----------------------------------------------------------------------------
 401 //  "insert-text" for GtkTextBuffer
 402 //-----------------------------------------------------------------------------
 403
 404 extern "C" {
 405 static void
 406 au_insert_text_callback(GtkTextBuffer *buffer,
 407                         GtkTextIter *end,
 408                         gchar *text,
 409                         gint len,
 410                         wxTextCtrl *win)
 411 {
 412     if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 413         return;
 414
 415     GtkTextIter start = *end;
 416     gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
 417
 418     GtkTextIter line_start = start;
 419     GtkTextIter line_end = *end;
 420     GtkTextIter words_start = start;
 421     GtkTextIter words_end = *end;
 422
 423     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
 424     gtk_text_iter_forward_to_line_end(&line_end);
 425     gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
 426     gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
 427
 428     au_check_range(&words_start, &words_end);
 429 }
 430 }
 431
 432 //-----------------------------------------------------------------------------
 433 //  "delete-range" for GtkTextBuffer
 434 //-----------------------------------------------------------------------------
 435
 436 extern "C" {
 437 static void
 438 au_delete_range_callback(GtkTextBuffer *buffer,
 439                          GtkTextIter *start,
 440                          GtkTextIter *end,
 441                          wxTextCtrl *win)
 442 {
 443     if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 444         return;
 445
 446     GtkTextIter line_start = *start, line_end = *end;
 447
 448     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
 449     gtk_text_iter_forward_to_line_end(&line_end);
 450     gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
 451     gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
 452
 453     au_check_range(start, end);
 454 }
 455 }
 456
 457
 458 #endif
 459
 460 //-----------------------------------------------------------------------------
 461 //  "changed"
 462 //-----------------------------------------------------------------------------
 463
 464 extern "C" {
 465 static void
 466 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
 467 {
 468     if ( win->IgnoreTextUpdate() )
 469         return;
 470
 471     if (!win->m_hasVMT) return;
 472
 473     if (g_isIdle)
 474         wxapp_install_idle_handler();
 475
 476     win->SetModified();
 477 #ifndef __WXGTK20__
 478     win->UpdateFontIfNeeded();
 479 #endif // !__WXGTK20__
 480
 481     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
 482     event.SetEventObject( win );
 483     win->GetEventHandler()->ProcessEvent( event );
 484 }
 485 }
 486
 487 //-----------------------------------------------------------------------------
 488 // "expose_event" from scrolled window and textview
 489 //-----------------------------------------------------------------------------
 490
 491 #ifdef __WXGTK20__
 492 extern "C" {
 493 static gboolean
 494 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
 495 {
 496     return TRUE;
 497 }
 498 }
 499 #endif
 500
 501 //-----------------------------------------------------------------------------
 502 // "changed" from vertical scrollbar
 503 //-----------------------------------------------------------------------------
 504
 505 #ifndef __WXGTK20__
 506 extern "C" {
 507 static void
 508 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
 509 {
 510     if (!win->m_hasVMT) return;
 511
 512     if (g_isIdle)
 513         wxapp_install_idle_handler();
 514
 515     win->CalculateScrollbar();
 516 }
 517 }
 518 #endif
 519
 520 // ----------------------------------------------------------------------------
 521 // redraw callback for multiline text
 522 // ----------------------------------------------------------------------------
 523
 524 #ifndef __WXGTK20__
 525
 526 // redrawing a GtkText from inside a wxYield() call results in crashes (the
 527 // text sample shows it in its "Add lines" command which shows wxProgressDialog
 528 // which implicitly calls wxYield()) so we override GtkText::draw() and simply
 529 // don't do anything if we're inside wxYield()
 530
 531 extern bool wxIsInsideYield;
 532
 533 extern "C" {
 534     typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
 535 }
 536
 537 static GtkDrawCallback gs_gtk_text_draw = NULL;
 538
 539 extern "C" {
 540 static void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
 541 {
 542     if ( !wxIsInsideYield )
 543     {
 544         wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
 545                      _T("infinite recursion in wxgtk_text_draw aborted") );
 546
 547         gs_gtk_text_draw(widget, rect);
 548     }
 549 }
 550 }
 551
 552 #endif // __WXGTK20__
 553
 554 //-----------------------------------------------------------------------------
 555 //  wxTextCtrl
 556 //-----------------------------------------------------------------------------
 557
 558 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
 559
 560 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 561     EVT_CHAR(wxTextCtrl::OnChar)
 562
 563     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 564     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 565     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 566     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 567     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 568
 569     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 570     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 571     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 572     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 573     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 574
 575 #ifdef __WXGTK20__
 576     // wxTE_AUTO_URL wxTextUrl support. Currently only creates
 577     // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
 578     EVT_MOTION      (wxTextCtrl::OnUrlMouseEvent)
 579     EVT_LEFT_DOWN   (wxTextCtrl::OnUrlMouseEvent)
 580     EVT_LEFT_UP     (wxTextCtrl::OnUrlMouseEvent)
 581     EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
 582     EVT_RIGHT_DOWN  (wxTextCtrl::OnUrlMouseEvent)
 583     EVT_RIGHT_UP    (wxTextCtrl::OnUrlMouseEvent)
 584     EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
 585 #endif
 586 END_EVENT_TABLE()
 587
 588 void wxTextCtrl::Init()
 589 {
 590     m_ignoreNextUpdate =
 591     m_modified = false;
 592     SetUpdateFont(false);
 593     m_text =
 594     m_vScrollbar = (GtkWidget *)NULL;
 595 #ifdef __WXGTK20__
 596     m_frozenness = 0;
 597     m_gdkHandCursor = NULL;
 598     m_gdkXTermCursor = NULL;
 599 #endif
 600 }
 601
 602 wxTextCtrl::~wxTextCtrl()
 603 {
 604 #ifdef __WXGTK20__
 605     if(m_gdkHandCursor)
 606         gdk_cursor_unref(m_gdkHandCursor);
 607     if(m_gdkXTermCursor)
 608         gdk_cursor_unref(m_gdkXTermCursor);
 609 #endif
 610 }
 611
 612 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 613                         wxWindowID id,
 614                         const wxString &value,
 615                         const wxPoint &pos,
 616                         const wxSize &size,
 617                         long style,
 618                         const wxValidator& validator,
 619                         const wxString &name )
 620 {
 621     Init();
 622
 623     Create( parent, id, value, pos, size, style, validator, name );
 624 }
 625
 626 bool wxTextCtrl::Create( wxWindow *parent,
 627                          wxWindowID id,
 628                          const wxString &value,
 629                          const wxPoint &pos,
 630                          const wxSize &size,
 631                          long style,
 632                          const wxValidator& validator,
 633                          const wxString &name )
 634 {
 635     m_needParent = true;
 636     m_acceptsFocus = true;
 637
 638     if (!PreCreation( parent, pos, size ) ||
 639         !CreateBase( parent, id, pos, size, style, validator, name ))
 640     {
 641         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 642         return false;
 643     }
 644
 645
 646     m_vScrollbarVisible = false;
 647
 648     bool multi_line = (style & wxTE_MULTILINE) != 0;
 649
 650     if (multi_line)
 651     {
 652 #ifdef __WXGTK20__
 653         // Create view
 654         m_text = gtk_text_view_new();
 655
 656         m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 657
 658         // create scrolled window
 659         m_widget = gtk_scrolled_window_new( NULL, NULL );
 660         gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
 661                                         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 662
 663         // Insert view into scrolled window
 664         gtk_container_add( GTK_CONTAINER(m_widget), m_text );
 665
 666         // translate wx wrapping style to GTK+
 667         GtkWrapMode wrap;
 668         if ( HasFlag( wxTE_DONTWRAP ) )
 669             wrap = GTK_WRAP_NONE;
 670         else if ( HasFlag( wxTE_CHARWRAP ) )
 671             wrap = GTK_WRAP_CHAR;
 672         else if ( HasFlag( wxTE_WORDWRAP ) )
 673             wrap = GTK_WRAP_WORD;
 674         else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
 675         {
 676             // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
 677 #ifdef __WXGTK24__
 678             if ( !gtk_check_version(2,4,0) )
 679             {
 680                 wrap = GTK_WRAP_WORD_CHAR;
 681             }
 682             else
 683 #endif
 684             wrap = GTK_WRAP_WORD;
 685         }
 686
 687         gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
 688
 689         if (!HasFlag(wxNO_BORDER))
 690             gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
 691
 692         gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
 693
 694         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 695 #else // GTK+ 1
 696         // create our control ...
 697         m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
 698
 699         // ... and put into the upper left hand corner of the table
 700         bool bHasHScrollbar = false;
 701         m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
 702         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 703         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 704                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 705                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 706                        0, 0);
 707
 708         // always wrap words
 709         gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
 710
 711         // finally, put the vertical scrollbar in the upper right corner
 712         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 713         GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
 714         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 715                      GTK_FILL,
 716                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 717                      0, 0);
 718 #endif // GTK+ 2/1
 719     }
 720     else
 721     {
 722         // a single-line text control: no need for scrollbars
 723         m_widget =
 724         m_text = gtk_entry_new();
 725
 726 #ifdef __WXGTK20__
 727         if (style & wxNO_BORDER)
 728             g_object_set( GTK_ENTRY(m_text), "has-frame", FALSE, NULL );
 729 #endif
 730     }
 731
 732     m_parent->DoAddChild( this );
 733
 734     m_focusWidget = m_text;
 735
 736     PostCreation(size);
 737
 738     if (multi_line)
 739         gtk_widget_show(m_text);
 740
 741 #ifndef __WXGTK20__
 742     if (multi_line)
 743     {
 744         gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
 745           (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
 746
 747         // only initialize gs_gtk_text_draw once, starting from the next the
 748         // klass::draw will already be wxgtk_text_draw
 749         if ( !gs_gtk_text_draw )
 750         {
 751             GtkDrawCallback&
 752                 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
 753
 754             gs_gtk_text_draw = draw;
 755
 756             draw = wxgtk_text_draw;
 757         }
 758     }
 759 #endif // GTK+ 1.x
 760
 761     if (!value.empty())
 762     {
 763 #ifdef __WXGTK20__
 764         SetValue( value );
 765 #else
 766
 767 #if !GTK_CHECK_VERSION(1, 2, 0)
 768         // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
 769         // gtk_editable_insert_text()
 770         gtk_widget_realize(m_text);
 771 #endif // GTK 1.0
 772
 773         gint tmp = 0;
 774 #if wxUSE_UNICODE
 775         wxWX2MBbuf val = value.mbc_str();
 776         gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
 777 #else
 778         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 779 #endif
 780
 781         if (multi_line)
 782         {
 783             // Bring editable's cursor uptodate. Bug in GTK.
 784             SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
 785         }
 786
 787 #endif
 788     }
 789
 790     if (style & wxTE_PASSWORD)
 791     {
 792         if (!multi_line)
 793             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 794     }
 795
 796     if (style & wxTE_READONLY)
 797     {
 798         if (!multi_line)
 799             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 800 #ifdef __WXGTK20__
 801         else
 802             gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
 803 #else
 804     }
 805     else
 806     {
 807         if (multi_line)
 808             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 809 #endif
 810     }
 811
 812 #ifdef __WXGTK20__
 813     if (multi_line)
 814     {
 815         if (style & wxTE_RIGHT)
 816             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
 817         else if (style & wxTE_CENTRE)
 818             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
 819         // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
 820     }
 821     else
 822     {
 823 #ifdef __WXGTK24__
 824         // gtk_entry_set_alignment was introduced in gtk+-2.3.5
 825         if (!gtk_check_version(2,4,0))
 826         {
 827             if (style & wxTE_RIGHT)
 828                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
 829             else if (style & wxTE_CENTRE)
 830                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
 831         }
 832 #endif
 833     }
 834 #endif // __WXGTK20__
 835
 836     // We want to be notified about text changes.
 837 #ifdef __WXGTK20__
 838     if (multi_line)
 839     {
 840         g_signal_connect( G_OBJECT(m_buffer), "changed",
 841             GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 842
 843         // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
 844         if (style & wxTE_AUTO_URL)
 845         {
 846             GtkTextIter start, end;
 847             m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
 848             m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
 849
 850             // We create our wxUrl tag here for slight efficiency gain - we
 851             // don't have to check for the tag existance in callbacks,
 852             // hereby it's guaranteed to exist.
 853             gtk_text_buffer_create_tag(m_buffer, "wxUrl",
 854                                        "foreground", "blue",
 855                                        "underline", PANGO_UNDERLINE_SINGLE,
 856                                        NULL);
 857
 858             // Check for URLs after each text change
 859             g_signal_connect_after( G_OBJECT(m_buffer), "insert_text",
 860                 GTK_SIGNAL_FUNC(au_insert_text_callback), (gpointer)this);
 861             g_signal_connect_after( G_OBJECT(m_buffer), "delete_range",
 862                 GTK_SIGNAL_FUNC(au_delete_range_callback), (gpointer)this);
 863
 864             // Block all wxUrl tag applying unless we do it ourselves, in which case we
 865             // block this callback temporarily. This takes care of gtk+ internal
 866             // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
 867             // which is undesired because only a part of the URL might be copied.
 868             // The insert-text signal emitted inside it will take care of newly formed
 869             // or wholly copied URLs.
 870             g_signal_connect( G_OBJECT(m_buffer), "apply_tag",
 871                 GTK_SIGNAL_FUNC(au_apply_tag_callback), NULL);
 872
 873             // Check for URLs in the initial string passed to Create
 874             gtk_text_buffer_get_start_iter(m_buffer, &start);
 875             gtk_text_buffer_get_end_iter(m_buffer, &end);
 876             au_check_range(&start, &end);
 877         }
 878     }
 879     else
 880 #endif
 881
 882     {
 883         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 884             GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 885     }
 886
 887     m_cursor = wxCursor( wxCURSOR_IBEAM );
 888
 889     wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
 890     SetDefaultStyle( attrDef );
 891
 892     return true;
 893 }
 894
 895
 896 void wxTextCtrl::CalculateScrollbar()
 897 {
 898 #ifndef __WXGTK20__
 899     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 900
 901     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 902
 903     if (adj->upper - adj->page_size < 0.8)
 904     {
 905         if (m_vScrollbarVisible)
 906         {
 907             gtk_widget_hide( m_vScrollbar );
 908             m_vScrollbarVisible = false;
 909         }
 910     }
 911     else
 912     {
 913         if (!m_vScrollbarVisible)
 914         {
 915             gtk_widget_show( m_vScrollbar );
 916             m_vScrollbarVisible = true;
 917         }
 918     }
 919 #endif
 920 }
 921
 922 wxString wxTextCtrl::GetValue() const
 923 {
 924     wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
 925
 926     wxString tmp;
 927     if (m_windowStyle & wxTE_MULTILINE)
 928     {
 929 #ifdef __WXGTK20__
 930         GtkTextIter start;
 931         gtk_text_buffer_get_start_iter( m_buffer, &start );
 932         GtkTextIter end;
 933         gtk_text_buffer_get_end_iter( m_buffer, &end );
 934         gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
 935
 936 #if wxUSE_UNICODE
 937         wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
 938 #else
 939         wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
 940 #endif
 941         if ( buffer )
 942             tmp = buffer;
 943
 944         g_free( text );
 945 #else
 946         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 947         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 948         tmp = text;
 949         g_free( text );
 950 #endif
 951     }
 952     else
 953     {
 954         tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
 955     }
 956
 957     return tmp;
 958 }
 959
 960 void wxTextCtrl::SetValue( const wxString &value )
 961 {
 962     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 963
 964     if (m_windowStyle & wxTE_MULTILINE)
 965     {
 966 #ifdef __WXGTK20__
 967
 968 #if wxUSE_UNICODE
 969         wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
 970 #else
 971         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
 972 #endif
 973         if (gtk_text_buffer_get_char_count(m_buffer) != 0)
 974             IgnoreNextTextUpdate();
 975
 976         if ( !buffer )
 977         {
 978             // what else can we do? at least don't crash...
 979             return;
 980         }
 981
 982         gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
 983
 984 #else
 985         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 986         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 987         len = 0;
 988         gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
 989 #endif
 990     }
 991     else
 992     {
 993         gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
 994     }
 995
 996     // GRG, Jun/2000: Changed this after a lot of discussion in
 997     //   the lists. wxWidgets 2.2 will have a set of flags to
 998     //   customize this behaviour.
 999     SetInsertionPoint(0);
1000
1001     m_modified = false;
1002 }
1003
1004 void wxTextCtrl::WriteText( const wxString &text )
1005 {
1006     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1007
1008     if ( text.empty() )
1009         return;
1010
1011     // gtk_text_changed_callback() will set m_modified to true but m_modified
1012     // shouldn't be changed by the program writing to the text control itself,
1013     // so save the old value and restore when we're done
1014     bool oldModified = m_modified;
1015
1016     if ( m_windowStyle & wxTE_MULTILINE )
1017     {
1018 #ifdef __WXGTK20__
1019
1020 #if wxUSE_UNICODE
1021         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
1022 #else
1023         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
1024 #endif
1025         if ( !buffer )
1026         {
1027             // what else can we do? at least don't crash...
1028             return;
1029         }
1030
1031         // TODO: Call whatever is needed to delete the selection.
1032         wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
1033
1034         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
1035         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
1036         if ( adj->value == adj->upper - adj->page_size )
1037         {
1038             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
1039                     gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
1040         }
1041 #else // GTK 1.x
1042         // After cursor movements, gtk_text_get_point() is wrong by one.
1043         gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
1044
1045         // always use m_defaultStyle, even if it is empty as otherwise
1046         // resetting the style and appending some more text wouldn't work: if
1047         // we don't specify the style explicitly, the old style would be used
1048         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
1049         wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
1050
1051         // we called wxGtkTextInsert with correct font, no need to do anything
1052         // in UpdateFontIfNeeded() any longer
1053         if ( !text.empty() )
1054         {
1055             SetUpdateFont(false);
1056         }
1057
1058         // Bring editable's cursor back uptodate.
1059         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1060 #endif // GTK 1.x/2.0
1061     }
1062     else // single line
1063     {
1064         // First remove the selection if there is one
1065         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
1066
1067         // This moves the cursor pos to behind the inserted text.
1068         gint len = GET_EDITABLE_POS(m_text);
1069
1070 #ifdef __WXGTK20__
1071
1072 #if wxUSE_UNICODE
1073         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
1074 #else
1075         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
1076 #endif
1077         if ( !buffer )
1078         {
1079             // what else can we do? at least don't crash...
1080             return;
1081         }
1082
1083         gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
1084
1085 #else
1086         gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
1087 #endif
1088
1089         // Bring entry's cursor uptodate.
1090         gtk_entry_set_position( GTK_ENTRY(m_text), len );
1091     }
1092
1093     m_modified = oldModified;
1094 }
1095
1096 void wxTextCtrl::AppendText( const wxString &text )
1097 {
1098     SetInsertionPointEnd();
1099     WriteText( text );
1100 }
1101
1102 wxString wxTextCtrl::GetLineText( long lineNo ) const
1103 {
1104     if (m_windowStyle & wxTE_MULTILINE)
1105     {
1106 #ifndef __WXGTK20__
1107         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1108         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1109
1110         if (text)
1111         {
1112             wxString buf;
1113             long i;
1114             int currentLine = 0;
1115             for (i = 0; currentLine != lineNo && text[i]; i++ )
1116                 if (text[i] == '\n')
1117             currentLine++;
1118             // Now get the text
1119             int j;
1120             for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
1121                 buf += text[i];
1122
1123             g_free( text );
1124             return buf;
1125         }
1126         else
1127         {
1128             return wxEmptyString;
1129         }
1130 #else
1131         GtkTextIter line;
1132         gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1133         GtkTextIter end = line;
1134         gtk_text_iter_forward_to_line_end(&end);
1135         gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
1136         wxString result(wxGTK_CONV_BACK(text));
1137         g_free(text);
1138         return result;
1139 #endif
1140     }
1141     else
1142     {
1143         if (lineNo == 0) return GetValue();
1144         return wxEmptyString;
1145     }
1146 }
1147
1148 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1149 {
1150   /* If you implement this, don't forget to update the documentation!
1151    * (file docs/latex/wx/text.tex) */
1152     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1153 }
1154
1155 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1156 {
1157     if ( m_windowStyle & wxTE_MULTILINE )
1158     {
1159 #ifdef __WXGTK20__
1160         GtkTextIter iter;
1161         gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
1162         if (gtk_text_iter_is_end(&iter))
1163             return false;
1164
1165         *y = gtk_text_iter_get_line(&iter);
1166         *x = gtk_text_iter_get_line_offset(&iter);
1167 #else
1168         wxString text = GetValue();
1169
1170         // cast to prevent warning. But pos really should've been unsigned.
1171         if( (unsigned long)pos > text.Len()  )
1172             return false;
1173
1174         *x=0;   // First Col
1175         *y=0;   // First Line
1176
1177         const wxChar* stop = text.c_str() + pos;
1178         for ( const wxChar *p = text.c_str(); p < stop; p++ )
1179         {
1180             if (*p == wxT('\n'))
1181             {
1182                 (*y)++;
1183                 *x=0;
1184             }
1185             else
1186                 (*x)++;
1187         }
1188 #endif
1189     }
1190     else // single line control
1191     {
1192         if ( pos <= GTK_ENTRY(m_text)->text_length )
1193         {
1194             *y = 0;
1195             *x = pos;
1196         }
1197         else
1198         {
1199             // index out of bounds
1200             return false;
1201         }
1202     }
1203
1204     return true;
1205 }
1206
1207 long wxTextCtrl::XYToPosition(long x, long y ) const
1208 {
1209     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
1210
1211 #ifdef __WXGTK20__
1212     GtkTextIter iter;
1213     gtk_text_buffer_get_iter_at_line_offset(m_buffer, &iter, y, x);
1214     return gtk_text_iter_get_offset(&iter);
1215 #else
1216     long pos=0;
1217     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
1218
1219     pos += x;
1220     return pos;
1221 #endif
1222 }
1223
1224 int wxTextCtrl::GetLineLength(long lineNo) const
1225 {
1226 #ifdef __WXGTK20__
1227     if (m_windowStyle & wxTE_MULTILINE)
1228     {
1229         int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
1230         if (lineNo > last_line)
1231             return -1;
1232
1233         GtkTextIter iter;
1234         gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
1235         // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
1236         return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
1237     }
1238     else
1239 #endif
1240     {
1241         wxString str = GetLineText (lineNo);
1242         return (int) str.Length();
1243     }
1244 }
1245
1246 int wxTextCtrl::GetNumberOfLines() const
1247 {
1248     if (m_windowStyle & wxTE_MULTILINE)
1249     {
1250 #ifdef __WXGTK20__
1251         return gtk_text_buffer_get_line_count( m_buffer );
1252 #else
1253         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1254         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1255
1256         if (text)
1257         {
1258             int currentLine = 0;
1259             for (int i = 0; i < len; i++ )
1260             {
1261                 if (text[i] == '\n')
1262                     currentLine++;
1263             }
1264             g_free( text );
1265
1266             // currentLine is 0 based, add 1 to get number of lines
1267             return currentLine + 1;
1268         }
1269         else
1270         {
1271             return 0;
1272         }
1273 #endif
1274     }
1275     else
1276     {
1277         return 1;
1278     }
1279 }
1280
1281 void wxTextCtrl::SetInsertionPoint( long pos )
1282 {
1283     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1284
1285     if ( IsMultiLine() )
1286     {
1287 #ifdef __WXGTK20__
1288         GtkTextIter iter;
1289         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1290         gtk_text_buffer_place_cursor( m_buffer, &iter );
1291         gtk_text_view_scroll_mark_onscreen
1292         (
1293             GTK_TEXT_VIEW(m_text),
1294             gtk_text_buffer_get_insert( m_buffer )
1295         );
1296 #else // GTK+ 1.x
1297         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
1298           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1299
1300         /* we fake a set_point by inserting and deleting. as the user
1301            isn't supposed to get to know about this non-sense, we
1302            disconnect so that no events are sent to the user program. */
1303
1304         gint tmp = (gint)pos;
1305         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
1306         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
1307
1308         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
1309           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1310
1311         // bring editable's cursor uptodate. Bug in GTK.
1312         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1313 #endif // GTK+ 2/1
1314     }
1315     else
1316     {
1317         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
1318
1319         // Bring editable's cursor uptodate. Bug in GTK.
1320         SET_EDITABLE_POS(m_text, (guint32)pos);
1321     }
1322 }
1323
1324 void wxTextCtrl::SetInsertionPointEnd()
1325 {
1326     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1327
1328     if (m_windowStyle & wxTE_MULTILINE)
1329     {
1330 #ifdef __WXGTK20__
1331         GtkTextIter end;
1332         gtk_text_buffer_get_end_iter( m_buffer, &end );
1333         gtk_text_buffer_place_cursor( m_buffer, &end );
1334 #else
1335         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
1336 #endif
1337     }
1338     else
1339     {
1340         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
1341     }
1342 }
1343
1344 void wxTextCtrl::SetEditable( bool editable )
1345 {
1346     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1347
1348     if (m_windowStyle & wxTE_MULTILINE)
1349     {
1350 #ifdef __WXGTK20__
1351         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1352 #else
1353         gtk_text_set_editable( GTK_TEXT(m_text), editable );
1354 #endif
1355     }
1356     else
1357     {
1358         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
1359     }
1360 }
1361
1362 bool wxTextCtrl::Enable( bool enable )
1363 {
1364     if (!wxWindowBase::Enable(enable))
1365     {
1366         // nothing to do
1367         return false;
1368     }
1369
1370     if (m_windowStyle & wxTE_MULTILINE)
1371     {
1372 #ifdef __WXGTK20__
1373         SetEditable( enable );
1374 #else
1375         gtk_text_set_editable( GTK_TEXT(m_text), enable );
1376         OnParentEnable(enable);
1377 #endif
1378     }
1379     else
1380     {
1381         gtk_widget_set_sensitive( m_text, enable );
1382     }
1383
1384     return true;
1385 }
1386
1387 // wxGTK-specific: called recursively by Enable,
1388 // to give widgets an oppprtunity to correct their colours after they
1389 // have been changed by Enable
1390 void wxTextCtrl::OnParentEnable( bool enable )
1391 {
1392     // If we have a custom background colour, we use this colour in both
1393     // disabled and enabled mode, or we end up with a different colour under the
1394     // text.
1395     wxColour oldColour = GetBackgroundColour();
1396     if (oldColour.Ok())
1397     {
1398         // Need to set twice or it'll optimize the useful stuff out
1399         if (oldColour == * wxWHITE)
1400             SetBackgroundColour(*wxBLACK);
1401         else
1402             SetBackgroundColour(*wxWHITE);
1403         SetBackgroundColour(oldColour);
1404     }
1405 }
1406
1407 void wxTextCtrl::MarkDirty()
1408 {
1409     m_modified = true;
1410 }
1411
1412 void wxTextCtrl::DiscardEdits()
1413 {
1414     m_modified = false;
1415 }
1416
1417 // ----------------------------------------------------------------------------
1418 // max text length support
1419 // ----------------------------------------------------------------------------
1420
1421 void wxTextCtrl::IgnoreNextTextUpdate()
1422 {
1423     m_ignoreNextUpdate = true;
1424 }
1425
1426 bool wxTextCtrl::IgnoreTextUpdate()
1427 {
1428     if ( m_ignoreNextUpdate )
1429     {
1430         m_ignoreNextUpdate = false;
1431
1432         return true;
1433     }
1434
1435     return false;
1436 }
1437
1438 void wxTextCtrl::SetMaxLength(unsigned long len)
1439 {
1440     if ( !HasFlag(wxTE_MULTILINE) )
1441     {
1442         gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1443
1444         // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1445         // we had tried to enter more text than allowed by max text length and
1446         // the text wasn't really changed
1447         //
1448         // to detect this and generate TEXT_MAXLEN event instead of
1449         // TEXT_CHANGED one in this case we also catch "insert_text" signal
1450         //
1451         // when max len is set to 0 we disconnect our handler as it means that
1452         // we shouldn't check anything any more
1453         if ( len )
1454         {
1455             gtk_signal_connect( GTK_OBJECT(m_text),
1456                                 "insert_text",
1457                                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1458                                 (gpointer)this);
1459         }
1460         else // no checking
1461         {
1462             gtk_signal_disconnect_by_func
1463             (
1464                 GTK_OBJECT(m_text),
1465                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1466                 (gpointer)this
1467             );
1468         }
1469     }
1470 }
1471
1472 void wxTextCtrl::SetSelection( long from, long to )
1473 {
1474     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1475
1476     if (from == -1 && to == -1)
1477     {
1478         from = 0;
1479         to = GetValue().Length();
1480     }
1481
1482 #ifndef __WXGTK20__
1483     if ( (m_windowStyle & wxTE_MULTILINE) &&
1484          !GTK_TEXT(m_text)->line_start_cache )
1485     {
1486         // tell the programmer that it didn't work
1487         wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1488         return;
1489     }
1490 #endif
1491
1492     if (m_windowStyle & wxTE_MULTILINE)
1493     {
1494 #ifdef __WXGTK20__
1495         GtkTextIter fromi, toi;
1496         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1497         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1498
1499         gtk_text_buffer_place_cursor( m_buffer, &toi );
1500         gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1501 #else
1502         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1503 #endif
1504     }
1505     else
1506     {
1507         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1508     }
1509 }
1510
1511 void wxTextCtrl::ShowPosition( long pos )
1512 {
1513     if (m_windowStyle & wxTE_MULTILINE)
1514     {
1515 #ifdef __WXGTK20__
1516         GtkTextIter iter;
1517         gtk_text_buffer_get_start_iter( m_buffer, &iter );
1518         gtk_text_iter_set_offset( &iter, pos );
1519         GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1520         gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1521 #else // GTK 1.x
1522         GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1523         float totalLines =  (float) GetNumberOfLines();
1524         long posX;
1525         long posY;
1526         PositionToXY(pos, &posX, &posY);
1527         float posLine = (float) posY;
1528         float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1529         gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1530 #endif // GTK 1.x/2.x
1531     }
1532 }
1533
1534 #ifdef __WXGTK20__
1535
1536 wxTextCtrlHitTestResult
1537 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1538 {
1539     if ( !IsMultiLine() )
1540     {
1541         // not supported
1542         return wxTE_HT_UNKNOWN;
1543     }
1544
1545     int x, y;
1546     gtk_text_view_window_to_buffer_coords
1547     (
1548         GTK_TEXT_VIEW(m_text),
1549         GTK_TEXT_WINDOW_TEXT,
1550         pt.x, pt.y,
1551         &x, &y
1552     );
1553
1554     GtkTextIter iter;
1555     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1556     if ( pos )
1557         *pos = gtk_text_iter_get_offset(&iter);
1558
1559     return wxTE_HT_ON_TEXT;
1560 }
1561
1562 #endif // __WXGTK20__
1563
1564 long wxTextCtrl::GetInsertionPoint() const
1565 {
1566     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1567
1568 #ifdef __WXGTK20__
1569     if (m_windowStyle & wxTE_MULTILINE)
1570     {
1571         // There is no direct accessor for the cursor, but
1572         // internally, the cursor is the "mark" called
1573         // "insert" in the text view's btree structure.
1574
1575         GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1576         GtkTextIter cursor;
1577         gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1578
1579         return gtk_text_iter_get_offset( &cursor );
1580     }
1581     else
1582 #endif
1583     {
1584         return (long) GET_EDITABLE_POS(m_text);
1585     }
1586 }
1587
1588 wxTextPos wxTextCtrl::GetLastPosition() const
1589 {
1590     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1591
1592     int pos = 0;
1593
1594     if (m_windowStyle & wxTE_MULTILINE)
1595     {
1596 #ifdef __WXGTK20__
1597         GtkTextIter end;
1598         gtk_text_buffer_get_end_iter( m_buffer, &end );
1599
1600         pos = gtk_text_iter_get_offset( &end );
1601 #else
1602         pos = gtk_text_get_length( GTK_TEXT(m_text) );
1603 #endif
1604     }
1605     else
1606     {
1607         pos = GTK_ENTRY(m_text)->text_length;
1608     }
1609
1610     return (long)pos;
1611 }
1612
1613 void wxTextCtrl::Remove( long from, long to )
1614 {
1615     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1616
1617 #ifdef __WXGTK20__
1618     if (m_windowStyle & wxTE_MULTILINE)
1619     {
1620         GtkTextIter fromi, toi;
1621         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1622         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1623
1624         gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1625     }
1626     else // single line
1627 #endif
1628     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1629 }
1630
1631 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1632 {
1633     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1634
1635     Remove( from, to );
1636
1637     if (!value.empty())
1638     {
1639 #ifdef __WXGTK20__
1640         SetInsertionPoint( from );
1641         WriteText( value );
1642 #else // GTK 1.x
1643         gint pos = (gint)from;
1644 #if wxUSE_UNICODE
1645         wxWX2MBbuf buf = value.mbc_str();
1646         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1647 #else
1648         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1649 #endif // wxUSE_UNICODE
1650 #endif // GTK 1.x/2.x
1651     }
1652 }
1653
1654 void wxTextCtrl::Cut()
1655 {
1656     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1657
1658 #ifdef __WXGTK20__
1659     if (m_windowStyle & wxTE_MULTILINE)
1660         g_signal_emit_by_name(m_text, "cut-clipboard");
1661     else
1662 #endif
1663         gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1664 }
1665
1666 void wxTextCtrl::Copy()
1667 {
1668     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1669
1670 #ifdef __WXGTK20__
1671     if (m_windowStyle & wxTE_MULTILINE)
1672         g_signal_emit_by_name(m_text, "copy-clipboard");
1673     else
1674 #endif
1675         gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1676 }
1677
1678 void wxTextCtrl::Paste()
1679 {
1680     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1681
1682 #ifdef __WXGTK20__
1683     if (m_windowStyle & wxTE_MULTILINE)
1684         g_signal_emit_by_name(m_text, "paste-clipboard");
1685     else
1686 #endif
1687         gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1688 }
1689
1690 // Undo/redo
1691 void wxTextCtrl::Undo()
1692 {
1693     // TODO
1694     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1695 }
1696
1697 void wxTextCtrl::Redo()
1698 {
1699     // TODO
1700     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1701 }
1702
1703 bool wxTextCtrl::CanUndo() const
1704 {
1705     // TODO
1706     //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1707     return false;
1708 }
1709
1710 bool wxTextCtrl::CanRedo() const
1711 {
1712     // TODO
1713     //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1714     return false;
1715 }
1716
1717 // If the return values from and to are the same, there is no
1718 // selection.
1719 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1720 {
1721     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1722
1723     gint from = -1;
1724     gint to = -1;
1725     bool haveSelection = false;
1726
1727 #ifdef __WXGTK20__
1728      if (m_windowStyle & wxTE_MULTILINE)
1729      {
1730          GtkTextIter ifrom, ito;
1731          if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1732          {
1733              haveSelection = true;
1734              from = gtk_text_iter_get_offset(&ifrom);
1735              to = gtk_text_iter_get_offset(&ito);
1736          }
1737      }
1738      else  // not multi-line
1739      {
1740          if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1741                                                  &from, &to) )
1742          {
1743              haveSelection = true;
1744          }
1745      }
1746 #else //  not GTK2
1747      if ( (GTK_EDITABLE(m_text)->has_selection) )
1748      {
1749          haveSelection = true;
1750          from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1751          to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1752      }
1753 #endif
1754
1755      if (! haveSelection )
1756           from = to = GetInsertionPoint();
1757
1758      if ( from > to )
1759      {
1760          // exchange them to be compatible with wxMSW
1761          gint tmp = from;
1762          from = to;
1763          to = tmp;
1764      }
1765
1766     if ( fromOut )
1767         *fromOut = from;
1768     if ( toOut )
1769         *toOut = to;
1770 }
1771
1772
1773 bool wxTextCtrl::IsEditable() const
1774 {
1775     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1776
1777 #ifdef __WXGTK20__
1778     if (m_windowStyle & wxTE_MULTILINE)
1779     {
1780         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1781     }
1782     else
1783     {
1784         return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1785     }
1786 #else
1787     return GTK_EDITABLE(m_text)->editable;
1788 #endif
1789 }
1790
1791 bool wxTextCtrl::IsModified() const
1792 {
1793     return m_modified;
1794 }
1795
1796 void wxTextCtrl::Clear()
1797 {
1798     SetValue( wxEmptyString );
1799 }
1800
1801 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1802 {
1803     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1804
1805     if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1806     {
1807         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1808         event.SetEventObject(this);
1809         event.SetString(GetValue());
1810         if (GetEventHandler()->ProcessEvent(event)) return;
1811     }
1812
1813     if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1814     {
1815         // This will invoke the dialog default action, such
1816         // as the clicking the default button.
1817
1818         wxWindow *top_frame = m_parent;
1819         while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1820             top_frame = top_frame->GetParent();
1821
1822         if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1823         {
1824             GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1825
1826             if (window->default_widget)
1827             {
1828                 gtk_widget_activate (window->default_widget);
1829                 return;
1830             }
1831         }
1832     }
1833
1834     key_event.Skip();
1835 }
1836
1837 GtkWidget* wxTextCtrl::GetConnectWidget()
1838 {
1839     return GTK_WIDGET(m_text);
1840 }
1841
1842 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1843 {
1844     if (m_windowStyle & wxTE_MULTILINE)
1845     {
1846 #ifdef __WXGTK20__
1847         return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT );  // pure guesswork
1848 #else
1849         return (window == GTK_TEXT(m_text)->text_area);
1850 #endif
1851     }
1852     else
1853     {
1854         return (window == GTK_ENTRY(m_text)->text_area);
1855     }
1856 }
1857
1858 // the font will change for subsequent text insertiongs
1859 bool wxTextCtrl::SetFont( const wxFont &font )
1860 {
1861     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1862
1863     if ( !wxTextCtrlBase::SetFont(font) )
1864     {
1865         // font didn't change, nothing to do
1866         return false;
1867     }
1868
1869     if ( m_windowStyle & wxTE_MULTILINE )
1870     {
1871         SetUpdateFont(true);
1872
1873         m_defaultStyle.SetFont(font);
1874
1875         ChangeFontGlobally();
1876     }
1877
1878     return true;
1879 }
1880
1881 void wxTextCtrl::ChangeFontGlobally()
1882 {
1883     // this method is very inefficient and hence should be called as rarely as
1884     // possible!
1885     //
1886     // TODO: it can be implemented much more efficiently for GTK2
1887 #ifndef __WXGTK20__
1888     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1889
1890                   _T("shouldn't be called for single line controls") );
1891 #else
1892     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1893                   _T("shouldn't be called for single line controls") );
1894 #endif
1895
1896     wxString value = GetValue();
1897     if ( !value.empty() )
1898     {
1899         SetUpdateFont(false);
1900
1901         Clear();
1902         AppendText(value);
1903     }
1904 }
1905
1906 #ifndef __WXGTK20__
1907
1908 void wxTextCtrl::UpdateFontIfNeeded()
1909 {
1910     if ( m_updateFont )
1911         ChangeFontGlobally();
1912 }
1913
1914 #endif // GTK+ 1.x
1915
1916 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1917 {
1918     if ( !wxControl::SetForegroundColour(colour) )
1919         return false;
1920
1921     // update default fg colour too
1922     m_defaultStyle.SetTextColour(colour);
1923
1924     return true;
1925 }
1926
1927 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1928 {
1929     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1930
1931     if ( !wxControl::SetBackgroundColour( colour ) )
1932         return false;
1933
1934 #ifndef __WXGTK20__
1935     if (!m_widget->window)
1936         return false;
1937 #endif
1938
1939     if (!m_backgroundColour.Ok())
1940         return false;
1941
1942     if (m_windowStyle & wxTE_MULTILINE)
1943     {
1944 #ifndef __WXGTK20__
1945         GdkWindow *window = GTK_TEXT(m_text)->text_area;
1946         if (!window)
1947             return false;
1948         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1949         gdk_window_set_background( window, m_backgroundColour.GetColor() );
1950         gdk_window_clear( window );
1951 #endif
1952     }
1953
1954     // change active background color too
1955     m_defaultStyle.SetBackgroundColour( colour );
1956
1957     return true;
1958 }
1959
1960 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1961 {
1962     if ( m_windowStyle & wxTE_MULTILINE )
1963     {
1964         if ( style.IsDefault() )
1965         {
1966             // nothing to do
1967             return true;
1968         }
1969
1970 #ifdef __WXGTK20__
1971         gint l = gtk_text_buffer_get_char_count( m_buffer );
1972
1973         wxCHECK_MSG( start >= 0 && end <= l, false,
1974                      _T("invalid range in wxTextCtrl::SetStyle") );
1975
1976         GtkTextIter starti, endi;
1977         gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1978         gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1979
1980         // use the attributes from style which are set in it and fall back
1981         // first to the default style and then to the text control default
1982         // colours for the others
1983         wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1984
1985         wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1986 #else
1987         // VERY dirty way to do that - removes the required text and re-adds it
1988         // with styling (FIXME)
1989
1990         gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1991
1992         wxCHECK_MSG( start >= 0 && end <= l, false,
1993                      _T("invalid range in wxTextCtrl::SetStyle") );
1994
1995         gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1996         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1997         wxString tmp(text,*wxConvCurrent);
1998         g_free( text );
1999
2000         gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
2001         gtk_editable_set_position( GTK_EDITABLE(m_text), start );
2002
2003     #if wxUSE_UNICODE
2004         wxWX2MBbuf buf = tmp.mbc_str();
2005         const char *txt = buf;
2006         size_t txtlen = strlen(buf);
2007     #else
2008         const char *txt = tmp;
2009         size_t txtlen = tmp.length();
2010     #endif
2011
2012         // use the attributes from style which are set in it and fall back
2013         // first to the default style and then to the text control default
2014         // colours for the others
2015         wxGtkTextInsert(m_text,
2016                         wxTextAttr::Combine(style, m_defaultStyle, this),
2017                         txt,
2018                         txtlen);
2019
2020         /* does not seem to help under GTK+ 1.2 !!!
2021         gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
2022         SetInsertionPoint( old_pos );
2023 #endif
2024
2025         return true;
2026     }
2027
2028     // else single line
2029     // cannot do this for GTK+'s Entry widget
2030     return false;
2031 }
2032
2033 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
2034 {
2035     gtk_widget_modify_style(m_text, style);
2036 }
2037
2038 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
2039 {
2040     Cut();
2041 }
2042
2043 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
2044 {
2045     Copy();
2046 }
2047
2048 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
2049 {
2050     Paste();
2051 }
2052
2053 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
2054 {
2055     Undo();
2056 }
2057
2058 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
2059 {
2060     Redo();
2061 }
2062
2063 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
2064 {
2065     event.Enable( CanCut() );
2066 }
2067
2068 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
2069 {
2070     event.Enable( CanCopy() );
2071 }
2072
2073 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
2074 {
2075     event.Enable( CanPaste() );
2076 }
2077
2078 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
2079 {
2080     event.Enable( CanUndo() );
2081 }
2082
2083 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
2084 {
2085     event.Enable( CanRedo() );
2086 }
2087
2088 void wxTextCtrl::OnInternalIdle()
2089 {
2090     wxCursor cursor = m_cursor;
2091     if (g_globalCursor.Ok()) cursor = g_globalCursor;
2092
2093     if (cursor.Ok())
2094     {
2095 #ifndef __WXGTK20__
2096         GdkWindow *window = (GdkWindow*) NULL;
2097         if (HasFlag(wxTE_MULTILINE))
2098             window = GTK_TEXT(m_text)->text_area;
2099         else
2100             window = GTK_ENTRY(m_text)->text_area;
2101
2102         if (window)
2103             gdk_window_set_cursor( window, cursor.GetCursor() );
2104
2105         if (!g_globalCursor.Ok())
2106             cursor = *wxSTANDARD_CURSOR;
2107
2108         window = m_widget->window;
2109         if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2110             gdk_window_set_cursor( window, cursor.GetCursor() );
2111 #endif
2112     }
2113
2114     if (g_delayedFocus == this)
2115     {
2116         if (GTK_WIDGET_REALIZED(m_widget))
2117         {
2118             gtk_widget_grab_focus( m_widget );
2119             g_delayedFocus = NULL;
2120         }
2121     }
2122
2123     if (wxUpdateUIEvent::CanUpdate(this))
2124         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2125 }
2126
2127 wxSize wxTextCtrl::DoGetBestSize() const
2128 {
2129     // FIXME should be different for multi-line controls...
2130     wxSize ret( wxControl::DoGetBestSize() );
2131     wxSize best(80, ret.y);
2132     CacheBestSize(best);
2133     return best;
2134 }
2135
2136 // ----------------------------------------------------------------------------
2137 // freeze/thaw
2138 // ----------------------------------------------------------------------------
2139
2140 void wxTextCtrl::Freeze()
2141 {
2142     if ( HasFlag(wxTE_MULTILINE) )
2143     {
2144 #ifdef __WXGTK20__
2145         if ( !m_frozenness++ )
2146         {
2147             // freeze textview updates and remove buffer
2148             g_signal_connect( G_OBJECT(m_text), "expose_event",
2149                 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2150             g_signal_connect( G_OBJECT(m_widget), "expose_event",
2151                 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2152             gtk_widget_set_sensitive(m_widget, false);
2153             g_object_ref(m_buffer);
2154             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
2155         }
2156 #else
2157         gtk_text_freeze(GTK_TEXT(m_text));
2158 #endif
2159     }
2160 }
2161
2162 void wxTextCtrl::Thaw()
2163 {
2164     if ( HasFlag(wxTE_MULTILINE) )
2165     {
2166 #ifdef __WXGTK20__
2167         wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
2168
2169         if ( !--m_frozenness )
2170         {
2171             // Reattach buffer and thaw textview updates
2172             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
2173             g_object_unref(m_buffer);
2174             gtk_widget_set_sensitive(m_widget, true);
2175             g_signal_handlers_disconnect_by_func(m_widget, (gpointer)gtk_text_exposed_callback, this);
2176             g_signal_handlers_disconnect_by_func(m_text, (gpointer)gtk_text_exposed_callback, this);
2177         }
2178 #else
2179         GTK_TEXT(m_text)->vadj->value = 0.0;
2180
2181         gtk_text_thaw(GTK_TEXT(m_text));
2182 #endif
2183     }
2184 }
2185
2186 // ----------------------------------------------------------------------------
2187 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
2188 // ----------------------------------------------------------------------------
2189
2190 #ifdef __WXGTK20__
2191
2192 // FIXME: when dragging on a link the sample gets an "Unknown event".
2193 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
2194 // a buggy sample, or something else
2195 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
2196 {
2197     event.Skip();
2198     if(!(m_windowStyle & wxTE_AUTO_URL))
2199         return;
2200
2201     gint x, y;
2202     GtkTextIter start, end;
2203     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
2204                                                 "wxUrl");
2205
2206     gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
2207                                           event.GetX(), event.GetY(), &x, &y);
2208
2209     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
2210     if (!gtk_text_iter_has_tag(&end, tag))
2211     {
2212         gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2213                               GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
2214         return;
2215     }
2216
2217     gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2218                           GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
2219
2220     start = end;
2221     if(!gtk_text_iter_begins_tag(&start, tag))
2222         gtk_text_iter_backward_to_tag_toggle(&start, tag);
2223     if(!gtk_text_iter_ends_tag(&end, tag))
2224         gtk_text_iter_forward_to_tag_toggle(&end, tag);
2225
2226     // Native context menu is probably not desired on an URL.
2227     // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
2228     if(event.GetEventType() == wxEVT_RIGHT_DOWN)
2229         event.Skip(false);
2230
2231     wxTextUrlEvent url_event(m_windowId, event,
2232                              gtk_text_iter_get_offset(&start),
2233                              gtk_text_iter_get_offset(&end));
2234
2235     InitCommandEvent(url_event);
2236     // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
2237     //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
2238     GetEventHandler()->ProcessEvent(url_event);
2239 }
2240 #endif // gtk2
2241
2242 // ----------------------------------------------------------------------------
2243 // scrolling
2244 // ----------------------------------------------------------------------------
2245
2246 GtkAdjustment *wxTextCtrl::GetVAdj() const
2247 {
2248     if ( !IsMultiLine() )
2249         return NULL;
2250
2251 #ifdef __WXGTK20__
2252     return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
2253 #else
2254     return GTK_TEXT(m_text)->vadj;
2255 #endif
2256 }
2257
2258 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
2259 {
2260     float value = adj->value + diff;
2261
2262     if ( value < 0 )
2263         value = 0;
2264
2265     float upper = adj->upper - adj->page_size;
2266     if ( value > upper )
2267         value = upper;
2268
2269     // did we noticeably change the scroll position?
2270     if ( fabs(adj->value - value) < 0.2 )
2271     {
2272         // well, this is what Robert does in wxScrollBar, so it must be good...
2273         return false;
2274     }
2275
2276     adj->value = value;
2277
2278 #ifdef __WXGTK20__
2279     gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
2280 #else
2281     gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
2282 #endif
2283
2284     return true;
2285 }
2286
2287 bool wxTextCtrl::ScrollLines(int lines)
2288 {
2289     GtkAdjustment *adj = GetVAdj();
2290     if ( !adj )
2291         return false;
2292
2293 #ifdef __WXGTK20__
2294     int diff = (int)ceil(lines*adj->step_increment);
2295 #else
2296     // this is hardcoded to 10 in GTK+ 1.2 (great idea)
2297     int diff = 10*lines;
2298 #endif
2299
2300     return DoScroll(adj, diff);
2301 }
2302
2303 bool wxTextCtrl::ScrollPages(int pages)
2304 {
2305     GtkAdjustment *adj = GetVAdj();
2306     if ( !adj )
2307         return false;
2308
2309     return DoScroll(adj, (int)ceil(pages*adj->page_increment));
2310 }
2311
2312
2313 // static
2314 wxVisualAttributes
2315 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
2316 {
2317     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
2318 }