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