src/gtk/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/textctrl.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin, 2005 Mart Raudsepp
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #include "wx/textctrl.h"
  14
  15 #ifndef WX_PRECOMP
  16     #include "wx/intl.h"
  17     #include "wx/log.h"
  18     #include "wx/utils.h"
  19     #include "wx/settings.h"
  20     #include "wx/math.h"
  21 #endif
  22
  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
  30 #include "wx/gtk/private.h"
  31
  32 // ----------------------------------------------------------------------------
  33 // helpers
  34 // ----------------------------------------------------------------------------
  35
  36 extern "C" {
  37 static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
  38                              GtkTextTag *tag,
  39                              GtkTextIter *start,
  40                              GtkTextIter *end,
  41                              char *prefix)
  42 {
  43     gchar *name;
  44     g_object_get (tag, "name", &name, NULL);
  45
  46     if (!name || strncmp(name, prefix, strlen(prefix)))
  47         // anonymous tag or not starting with prefix - don't remove
  48         g_signal_stop_emission_by_name (buffer, "remove_tag");
  49
  50     g_free(name);
  51 }
  52 }
  53
  54 static void wxGtkTextApplyTagsFromAttr(GtkWidget *text,
  55                                        GtkTextBuffer *text_buffer,
  56                                        const wxTextAttr& attr,
  57                                        GtkTextIter *start,
  58                                        GtkTextIter *end)
  59 {
  60     static gchar buf[1024];
  61     GtkTextTag *tag;
  62
  63     gulong remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
  64             G_CALLBACK (wxGtkOnRemoveTag), gpointer("WX"));
  65     gtk_text_buffer_remove_all_tags(text_buffer, start, end);
  66     g_signal_handler_disconnect (text_buffer, remove_handler_id);
  67
  68     if (attr.HasFont())
  69     {
  70         PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
  71         wxGtkString font_string(pango_font_description_to_string(font_description));
  72         g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string.c_str());
  73         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
  74                                          buf );
  75         if (!tag)
  76             tag = gtk_text_buffer_create_tag( text_buffer, buf,
  77                                               "font-desc", font_description,
  78                                               NULL );
  79         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
  80
  81         if (attr.GetFont().GetUnderlined())
  82         {
  83             g_snprintf(buf, sizeof(buf), "WXFONTUNDERLINE");
  84             tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
  85                                              buf );
  86             if (!tag)
  87                 tag = gtk_text_buffer_create_tag( text_buffer, buf,
  88                                                   "underline-set", TRUE,
  89                                                   "underline", PANGO_UNDERLINE_SINGLE,
  90                                                   NULL );
  91             gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
  92         }
  93     }
  94
  95     if (attr.HasTextColour())
  96     {
  97         const GdkColor *colFg = attr.GetTextColour().GetColor();
  98         g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
  99                    colFg->red, colFg->green, colFg->blue);
 100         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 101                                          buf );
 102         if (!tag)
 103             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 104                                               "foreground-gdk", colFg, NULL );
 105         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 106     }
 107
 108     if (attr.HasBackgroundColour())
 109     {
 110         const GdkColor *colBg = attr.GetBackgroundColour().GetColor();
 111         g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
 112                    colBg->red, colBg->green, colBg->blue);
 113         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 114                                          buf );
 115         if (!tag)
 116             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 117                                               "background-gdk", colBg, NULL );
 118         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 119     }
 120
 121     if (attr.HasAlignment())
 122     {
 123         GtkTextIter para_start, para_end = *end;
 124         gtk_text_buffer_get_iter_at_line( text_buffer,
 125                                           &para_start,
 126                                           gtk_text_iter_get_line(start) );
 127         gtk_text_iter_forward_line(&para_end);
 128
 129         remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
 130                                               G_CALLBACK(wxGtkOnRemoveTag),
 131                                               gpointer("WXALIGNMENT"));
 132         gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
 133         g_signal_handler_disconnect (text_buffer, remove_handler_id);
 134
 135         GtkJustification align;
 136         switch (attr.GetAlignment())
 137         {
 138             default:
 139                 align = GTK_JUSTIFY_LEFT;
 140                 break;
 141             case wxTEXT_ALIGNMENT_RIGHT:
 142                 align = GTK_JUSTIFY_RIGHT;
 143                 break;
 144             case wxTEXT_ALIGNMENT_CENTER:
 145                 align = GTK_JUSTIFY_CENTER;
 146                 break;
 147             // gtk+ doesn't support justify as of gtk+-2.7.4
 148         }
 149
 150         g_snprintf(buf, sizeof(buf), "WXALIGNMENT %d", align);
 151         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 152                                          buf );
 153         if (!tag)
 154             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 155                                               "justification", align, NULL );
 156         gtk_text_buffer_apply_tag( text_buffer, tag, &para_start, &para_end );
 157     }
 158
 159     if (attr.HasLeftIndent())
 160     {
 161         // Indentation attribute
 162
 163         // Clear old indentation tags
 164         GtkTextIter para_start, para_end = *end;
 165         gtk_text_buffer_get_iter_at_line( text_buffer,
 166                                           &para_start,
 167                                           gtk_text_iter_get_line(start) );
 168         gtk_text_iter_forward_line(&para_end);
 169
 170         remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
 171                                               G_CALLBACK(wxGtkOnRemoveTag),
 172                                               gpointer("WXINDENT"));
 173         gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
 174         g_signal_handler_disconnect (text_buffer, remove_handler_id);
 175
 176         // Convert indent from 1/10th of a mm into pixels
 177         float factor;
 178 #if GTK_CHECK_VERSION(2,2,0)
 179         if (!gtk_check_version(2,2,0))
 180             factor = (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
 181                       gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
 182         else
 183 #endif
 184             factor = (float)gdk_screen_width() / gdk_screen_width_mm() / 10;
 185
 186         const int indent = (int)(factor * attr.GetLeftIndent());
 187         const int subIndent = (int)(factor * attr.GetLeftSubIndent());
 188
 189         gint gindent;
 190         gint gsubindent;
 191
 192         if (subIndent >= 0)
 193         {
 194             gindent = indent;
 195             gsubindent = -subIndent;
 196         }
 197         else
 198         {
 199             gindent = -subIndent;
 200             gsubindent = indent;
 201         }
 202
 203         g_snprintf(buf, sizeof(buf), "WXINDENT %d %d", gindent, gsubindent);
 204         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 205                                         buf );
 206         if (!tag)
 207             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 208                                               "left-margin", gindent, "indent", gsubindent, NULL );
 209         gtk_text_buffer_apply_tag (text_buffer, tag, &para_start, &para_end);
 210     }
 211
 212     if (attr.HasTabs())
 213     {
 214         // Set tab stops
 215
 216         // Clear old tabs
 217         GtkTextIter para_start, para_end = *end;
 218         gtk_text_buffer_get_iter_at_line( text_buffer,
 219                                           &para_start,
 220                                           gtk_text_iter_get_line(start) );
 221         gtk_text_iter_forward_line(&para_end);
 222
 223         remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
 224                                               G_CALLBACK(wxGtkOnRemoveTag),
 225                                               gpointer("WXTABS"));
 226         gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
 227         g_signal_handler_disconnect (text_buffer, remove_handler_id);
 228
 229         const wxArrayInt& tabs = attr.GetTabs();
 230
 231         wxString tagname = _T("WXTABS");
 232         g_snprintf(buf, sizeof(buf), "WXTABS");
 233         for (size_t i = 0; i < tabs.GetCount(); i++)
 234             tagname += wxString::Format(_T(" %d"), tabs[i]);
 235
 236         const wxWX2MBbuf buf = tagname.mb_str(wxConvUTF8);
 237
 238         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 239                                         buf );
 240         if (!tag)
 241         {
 242             // Factor to convert from 1/10th of a mm into pixels
 243             float factor;
 244 #if GTK_CHECK_VERSION(2,2,0)
 245             if (!gtk_check_version(2,2,0))
 246                 factor = (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
 247                           gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
 248             else
 249 #endif
 250                 factor = (float)gdk_screen_width() / gdk_screen_width_mm() / 10;
 251
 252             PangoTabArray* tabArray = pango_tab_array_new(tabs.GetCount(), TRUE);
 253             for (size_t i = 0; i < tabs.GetCount(); i++)
 254                 pango_tab_array_set_tab(tabArray, i, PANGO_TAB_LEFT, (gint)(tabs[i] * factor));
 255             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 256                                               "tabs", tabArray, NULL );
 257             pango_tab_array_free(tabArray);
 258         }
 259         gtk_text_buffer_apply_tag (text_buffer, tag, &para_start, &para_end);
 260     }
 261 }
 262
 263 static void wxGtkTextInsert(GtkWidget *text,
 264                             GtkTextBuffer *text_buffer,
 265                             const wxTextAttr& attr,
 266                             const wxCharBuffer& buffer)
 267
 268 {
 269     gint start_offset;
 270     GtkTextIter iter, start;
 271
 272     gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
 273                                      gtk_text_buffer_get_insert (text_buffer) );
 274     start_offset = gtk_text_iter_get_offset (&iter);
 275     gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
 276
 277     gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
 278
 279     wxGtkTextApplyTagsFromAttr(text, text_buffer, attr, &start, &iter);
 280 }
 281
 282 // ----------------------------------------------------------------------------
 283 // "insert_text" for GtkEntry
 284 // ----------------------------------------------------------------------------
 285
 286 extern "C" {
 287 static void
 288 gtk_insert_text_callback(GtkEditable *editable,
 289                          const gchar *new_text,
 290                          gint new_text_length,
 291                          gint *position,
 292                          wxTextCtrl *win)
 293 {
 294     if (g_isIdle)
 295         wxapp_install_idle_handler();
 296
 297     // we should only be called if we have a max len limit at all
 298     GtkEntry *entry = GTK_ENTRY (editable);
 299
 300     wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
 301
 302     // check that we don't overflow the max length limit
 303     //
 304     // FIXME: this doesn't work when we paste a string which is going to be
 305     //        truncated
 306     if ( entry->text_length == entry->text_max_length )
 307     {
 308         // we don't need to run the base class version at all
 309         g_signal_stop_emission_by_name (editable, "insert_text");
 310
 311         // remember that the next changed signal is to be ignored to avoid
 312         // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
 313         win->IgnoreNextTextUpdate();
 314
 315         // and generate the correct one ourselves
 316         wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
 317         event.SetEventObject(win);
 318         event.SetString(win->GetValue());
 319         win->GetEventHandler()->ProcessEvent( event );
 320     }
 321 }
 322 }
 323
 324 // Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
 325
 326 extern "C" {
 327 static void
 328 au_apply_tag_callback(GtkTextBuffer *buffer,
 329                       GtkTextTag *tag,
 330                       GtkTextIter *start,
 331                       GtkTextIter *end,
 332                       gpointer textctrl)
 333 {
 334     if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
 335         g_signal_stop_emission_by_name (buffer, "apply_tag");
 336 }
 337 }
 338
 339 //-----------------------------------------------------------------------------
 340 //  GtkTextCharPredicates for gtk_text_iter_*_find_char
 341 //-----------------------------------------------------------------------------
 342
 343 extern "C" {
 344 static gboolean
 345 pred_whitespace (gunichar ch, gpointer user_data)
 346 {
 347     return g_unichar_isspace(ch);
 348 }
 349 }
 350
 351 extern "C" {
 352 static gboolean
 353 pred_non_whitespace (gunichar ch, gpointer user_data)
 354 {
 355     return !g_unichar_isspace(ch);
 356 }
 357 }
 358
 359 extern "C" {
 360 static gboolean
 361 pred_nonpunct (gunichar ch, gpointer user_data)
 362 {
 363     return !g_unichar_ispunct(ch);
 364 }
 365 }
 366
 367 extern "C" {
 368 static gboolean
 369 pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
 370 {
 371     return !g_unichar_ispunct(ch) || ch == '/';
 372 }
 373 }
 374
 375 //-----------------------------------------------------------------------------
 376 //  Check for links between s and e and correct tags as necessary
 377 //-----------------------------------------------------------------------------
 378
 379 // This function should be made match better while being efficient at one point.
 380 // Most probably with a row of regular expressions.
 381 extern "C" {
 382 static void
 383 au_check_word( GtkTextIter *s, GtkTextIter *e )
 384 {
 385     static const char *URIPrefixes[] =
 386     {
 387         "http://",
 388         "ftp://",
 389         "www.",
 390         "ftp.",
 391         "mailto://",
 392         "https://",
 393         "file://",
 394         "nntp://",
 395         "news://",
 396         "telnet://",
 397         "mms://",
 398         "gopher://",
 399         "prospero://",
 400         "wais://",
 401     };
 402
 403     GtkTextIter start = *s, end = *e;
 404     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 405
 406     // Get our special link tag
 407     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 408
 409     // Get rid of punctuation from beginning and end.
 410     // Might want to move this to au_check_range if an improved link checking doesn't
 411     // use some intelligent punctuation checking itself (beware of undesired iter modifications).
 412     if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
 413         gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
 414
 415     gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
 416     gtk_text_iter_forward_char(&end);
 417
 418     gchar* text = gtk_text_iter_get_text( &start, &end );
 419     size_t len = strlen(text), prefix_len;
 420     size_t n;
 421
 422     for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
 423     {
 424         prefix_len = strlen(URIPrefixes[n]);
 425         if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
 426             break;
 427     }
 428
 429     if(n < WXSIZEOF(URIPrefixes))
 430     {
 431         gulong signal_id = g_signal_handler_find (buffer,
 432                                                   (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
 433                                                   0, 0, NULL,
 434                                                   (gpointer)au_apply_tag_callback, NULL);
 435
 436         g_signal_handler_block (buffer, signal_id);
 437         gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
 438         g_signal_handler_unblock (buffer, signal_id);
 439     }
 440 }
 441 }
 442
 443 extern "C" {
 444 static void
 445 au_check_range(GtkTextIter *s,
 446                GtkTextIter *range_end)
 447 {
 448     GtkTextIter range_start = *s;
 449     GtkTextIter word_end;
 450     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 451     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 452
 453     gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
 454
 455     if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
 456         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 457
 458     while(!gtk_text_iter_equal(&range_start, range_end))
 459     {
 460         word_end = range_start;
 461         gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
 462
 463         // Now we should have a word delimited by range_start and word_end, correct link tags
 464         au_check_word(&range_start, &word_end);
 465
 466         range_start = word_end;
 467         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 468     }
 469 }
 470 }
 471
 472 //-----------------------------------------------------------------------------
 473 //  "insert-text" for GtkTextBuffer
 474 //-----------------------------------------------------------------------------
 475
 476 extern "C" {
 477 static void
 478 au_insert_text_callback(GtkTextBuffer *buffer,
 479                         GtkTextIter *end,
 480                         gchar *text,
 481                         gint len,
 482                         wxTextCtrl *win)
 483 {
 484     if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 485         return;
 486
 487     GtkTextIter start = *end;
 488     gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
 489
 490     GtkTextIter line_start = start;
 491     GtkTextIter line_end = *end;
 492     GtkTextIter words_start = start;
 493     GtkTextIter words_end = *end;
 494
 495     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
 496     gtk_text_iter_forward_to_line_end(&line_end);
 497     gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
 498     gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
 499
 500     au_check_range(&words_start, &words_end);
 501 }
 502 }
 503
 504 //-----------------------------------------------------------------------------
 505 //  "delete-range" for GtkTextBuffer
 506 //-----------------------------------------------------------------------------
 507
 508 extern "C" {
 509 static void
 510 au_delete_range_callback(GtkTextBuffer *buffer,
 511                          GtkTextIter *start,
 512                          GtkTextIter *end,
 513                          wxTextCtrl *win)
 514 {
 515     if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 516         return;
 517
 518     GtkTextIter line_start = *start, line_end = *end;
 519
 520     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
 521     gtk_text_iter_forward_to_line_end(&line_end);
 522     gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
 523     gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
 524
 525     au_check_range(start, end);
 526 }
 527 }
 528
 529
 530 //-----------------------------------------------------------------------------
 531 //  "changed"
 532 //-----------------------------------------------------------------------------
 533
 534 extern "C" {
 535 static void
 536 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
 537 {
 538     if ( win->IgnoreTextUpdate() )
 539         return;
 540
 541     if (!win->m_hasVMT) return;
 542
 543     if (g_isIdle)
 544         wxapp_install_idle_handler();
 545
 546     if ( win->MarkDirtyOnChange() )
 547         win->MarkDirty();
 548
 549     win->SendTextUpdatedEvent();
 550 }
 551 }
 552
 553 //-----------------------------------------------------------------------------
 554 //  clipboard events: "copy-clipboard", "cut-clipboard", "paste-clipboard"
 555 //-----------------------------------------------------------------------------
 556
 557 // common part of the event handlers below
 558 static void
 559 handle_text_clipboard_callback( GtkWidget *widget, wxTextCtrl *win,
 560                                 wxEventType eventType, const gchar * signal_name)
 561 {
 562     wxClipboardTextEvent event( eventType, win->GetId() );
 563     event.SetEventObject( win );
 564     if ( win->GetEventHandler()->ProcessEvent( event ) )
 565     {
 566         // don't let the default processing to take place if we did something
 567         // ourselves in the event handler
 568         g_signal_stop_emission_by_name (widget, signal_name);
 569     }
 570 }
 571
 572 extern "C" {
 573 static void
 574 gtk_copy_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 575 {
 576     handle_text_clipboard_callback(
 577         widget, win, wxEVT_COMMAND_TEXT_COPY, "copy-clipboard" );
 578 }
 579
 580 static void
 581 gtk_cut_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 582 {
 583     handle_text_clipboard_callback(
 584         widget, win, wxEVT_COMMAND_TEXT_CUT, "cut-clipboard" );
 585 }
 586
 587 static void
 588 gtk_paste_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 589 {
 590     handle_text_clipboard_callback(
 591         widget, win, wxEVT_COMMAND_TEXT_PASTE, "paste-clipboard" );
 592 }
 593 }
 594
 595 //-----------------------------------------------------------------------------
 596 // "expose_event" from scrolled window and textview
 597 //-----------------------------------------------------------------------------
 598
 599 extern "C" {
 600 static gboolean
 601 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
 602 {
 603     return TRUE;
 604 }
 605 }
 606
 607
 608 //-----------------------------------------------------------------------------
 609 //  wxTextCtrl
 610 //-----------------------------------------------------------------------------
 611
 612 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxTextCtrlBase)
 613
 614 BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase)
 615     EVT_CHAR(wxTextCtrl::OnChar)
 616
 617     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 618     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 619     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 620     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 621     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 622
 623     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 624     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 625     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 626     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 627     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 628
 629     // wxTE_AUTO_URL wxTextUrl support. Currently only creates
 630     // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
 631     EVT_MOTION      (wxTextCtrl::OnUrlMouseEvent)
 632     EVT_LEFT_DOWN   (wxTextCtrl::OnUrlMouseEvent)
 633     EVT_LEFT_UP     (wxTextCtrl::OnUrlMouseEvent)
 634     EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
 635     EVT_RIGHT_DOWN  (wxTextCtrl::OnUrlMouseEvent)
 636     EVT_RIGHT_UP    (wxTextCtrl::OnUrlMouseEvent)
 637     EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
 638 END_EVENT_TABLE()
 639
 640 void wxTextCtrl::Init()
 641 {
 642     m_dontMarkDirty =
 643     m_modified = false;
 644
 645     m_countUpdatesToIgnore = 0;
 646
 647     SetUpdateFont(false);
 648
 649     m_text = NULL;
 650     m_freezeCount = 0;
 651     m_showPositionOnThaw = NULL;
 652     m_gdkHandCursor = NULL;
 653     m_gdkXTermCursor = NULL;
 654 }
 655
 656 wxTextCtrl::~wxTextCtrl()
 657 {
 658     if(m_gdkHandCursor)
 659         gdk_cursor_unref(m_gdkHandCursor);
 660     if(m_gdkXTermCursor)
 661         gdk_cursor_unref(m_gdkXTermCursor);
 662 }
 663
 664 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 665                         wxWindowID id,
 666                         const wxString &value,
 667                         const wxPoint &pos,
 668                         const wxSize &size,
 669                         long style,
 670                         const wxValidator& validator,
 671                         const wxString &name )
 672 {
 673     Init();
 674
 675     Create( parent, id, value, pos, size, style, validator, name );
 676 }
 677
 678 bool wxTextCtrl::Create( wxWindow *parent,
 679                          wxWindowID id,
 680                          const wxString &value,
 681                          const wxPoint &pos,
 682                          const wxSize &size,
 683                          long style,
 684                          const wxValidator& validator,
 685                          const wxString &name )
 686 {
 687     m_needParent = true;
 688     m_acceptsFocus = true;
 689
 690     if (!PreCreation( parent, pos, size ) ||
 691         !CreateBase( parent, id, pos, size, style, validator, name ))
 692     {
 693         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 694         return false;
 695     }
 696
 697     bool multi_line = (style & wxTE_MULTILINE) != 0;
 698
 699     if (multi_line)
 700     {
 701         // Create view
 702         m_text = gtk_text_view_new();
 703
 704         m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 705
 706         // create "ShowPosition" marker
 707         GtkTextIter iter;
 708         gtk_text_buffer_get_start_iter(m_buffer, &iter);
 709         gtk_text_buffer_create_mark(m_buffer, "ShowPosition", &iter, true);
 710
 711         // create scrolled window
 712         m_widget = gtk_scrolled_window_new( NULL, NULL );
 713         gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
 714                                         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 715         // for ScrollLines/Pages
 716         m_scrollBar[1] = (GtkRange*)((GtkScrolledWindow*)m_widget)->vscrollbar;
 717
 718         // Insert view into scrolled window
 719         gtk_container_add( GTK_CONTAINER(m_widget), m_text );
 720
 721         GTKSetWrapMode();
 722
 723         GtkScrolledWindowSetBorder(m_widget, style);
 724
 725         gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
 726
 727         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 728     }
 729     else
 730     {
 731         // a single-line text control: no need for scrollbars
 732         m_widget =
 733         m_text = gtk_entry_new();
 734
 735         if (style & wxNO_BORDER)
 736             g_object_set (m_text, "has-frame", FALSE, NULL);
 737     }
 738
 739     m_parent->DoAddChild( this );
 740
 741     m_focusWidget = m_text;
 742
 743     PostCreation(size);
 744
 745     if (multi_line)
 746     {
 747         gtk_widget_show(m_text);
 748     }
 749
 750     if (!value.empty())
 751     {
 752         SetValue( value );
 753     }
 754
 755     if (style & wxTE_PASSWORD)
 756         GTKSetVisibility();
 757
 758     if (style & wxTE_READONLY)
 759         GTKSetEditable();
 760
 761     // left justification (alignment) is the default anyhow
 762     if ( style & (wxTE_RIGHT | wxTE_CENTRE) )
 763         GTKSetJustification();
 764
 765     // We want to be notified about text changes.
 766     if (multi_line)
 767     {
 768         g_signal_connect (m_buffer, "changed",
 769                           G_CALLBACK (gtk_text_changed_callback), this);
 770
 771         // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
 772         if (style & wxTE_AUTO_URL)
 773         {
 774             GtkTextIter start, end;
 775             m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
 776             m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
 777
 778             // We create our wxUrl tag here for slight efficiency gain - we
 779             // don't have to check for the tag existance in callbacks,
 780             // hereby it's guaranteed to exist.
 781             gtk_text_buffer_create_tag(m_buffer, "wxUrl",
 782                                        "foreground", "blue",
 783                                        "underline", PANGO_UNDERLINE_SINGLE,
 784                                        NULL);
 785
 786             // Check for URLs after each text change
 787             g_signal_connect_after (m_buffer, "insert_text",
 788                                     G_CALLBACK (au_insert_text_callback), this);
 789             g_signal_connect_after (m_buffer, "delete_range",
 790                                     G_CALLBACK (au_delete_range_callback), this);
 791
 792             // Block all wxUrl tag applying unless we do it ourselves, in which case we
 793             // block this callback temporarily. This takes care of gtk+ internal
 794             // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
 795             // which is undesired because only a part of the URL might be copied.
 796             // The insert-text signal emitted inside it will take care of newly formed
 797             // or wholly copied URLs.
 798             g_signal_connect (m_buffer, "apply_tag",
 799                               G_CALLBACK (au_apply_tag_callback), NULL);
 800
 801             // Check for URLs in the initial string passed to Create
 802             gtk_text_buffer_get_start_iter(m_buffer, &start);
 803             gtk_text_buffer_get_end_iter(m_buffer, &end);
 804             au_check_range(&start, &end);
 805         }
 806     }
 807     else
 808     {
 809         g_signal_connect (m_text, "changed",
 810                           G_CALLBACK (gtk_text_changed_callback), this);
 811     }
 812
 813     g_signal_connect (m_text, "copy-clipboard",
 814                       G_CALLBACK (gtk_copy_clipboard_callback), this);
 815     g_signal_connect (m_text, "cut-clipboard",
 816                       G_CALLBACK (gtk_cut_clipboard_callback), this);
 817     g_signal_connect (m_text, "paste-clipboard",
 818                       G_CALLBACK (gtk_paste_clipboard_callback), this);
 819
 820     m_cursor = wxCursor( wxCURSOR_IBEAM );
 821
 822     wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
 823     SetDefaultStyle( attrDef );
 824
 825     return true;
 826 }
 827
 828 // ----------------------------------------------------------------------------
 829 // flags handling
 830 // ----------------------------------------------------------------------------
 831
 832 void wxTextCtrl::GTKSetEditable()
 833 {
 834     gboolean editable = !HasFlag(wxTE_READONLY);
 835     if ( IsSingleLine() )
 836         gtk_editable_set_editable(GTK_EDITABLE(m_text), editable);
 837     else
 838         gtk_text_view_set_editable(GTK_TEXT_VIEW(m_text), editable);
 839 }
 840
 841 void wxTextCtrl::GTKSetVisibility()
 842 {
 843     // VZ: shouldn't we assert if wxTE_PASSWORD is set for multiline control?
 844     if ( IsSingleLine() )
 845         gtk_entry_set_visibility(GTK_ENTRY(m_text), !HasFlag(wxTE_PASSWORD));
 846 }
 847
 848 void wxTextCtrl::GTKSetWrapMode()
 849 {
 850     // no wrapping in single line controls
 851     if ( !IsMultiLine() )
 852         return;
 853
 854     // translate wx wrapping style to GTK+
 855     GtkWrapMode wrap;
 856     if ( HasFlag( wxTE_DONTWRAP ) )
 857         wrap = GTK_WRAP_NONE;
 858     else if ( HasFlag( wxTE_CHARWRAP ) )
 859         wrap = GTK_WRAP_CHAR;
 860     else if ( HasFlag( wxTE_WORDWRAP ) )
 861         wrap = GTK_WRAP_WORD;
 862     else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
 863     {
 864         // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
 865 #ifdef __WXGTK24__
 866         if ( !gtk_check_version(2,4,0) )
 867         {
 868             wrap = GTK_WRAP_WORD_CHAR;
 869         }
 870         else
 871 #endif // __WXGTK24__
 872         wrap = GTK_WRAP_WORD;
 873     }
 874
 875     gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
 876 }
 877
 878 void wxTextCtrl::GTKSetJustification()
 879 {
 880     if ( IsMultiLine() )
 881     {
 882         GtkJustification just;
 883         if ( HasFlag(wxTE_RIGHT) )
 884             just = GTK_JUSTIFY_RIGHT;
 885         else if ( HasFlag(wxTE_CENTRE) )
 886             just = GTK_JUSTIFY_CENTER;
 887         else // wxTE_LEFT == 0
 888             just = GTK_JUSTIFY_LEFT;
 889
 890         gtk_text_view_set_justification(GTK_TEXT_VIEW(m_text), just);
 891     }
 892     else // single line
 893     {
 894 #ifdef __WXGTK24__
 895         // gtk_entry_set_alignment was introduced in gtk+-2.3.5
 896         if (!gtk_check_version(2,4,0))
 897         {
 898             gfloat align;
 899             if ( HasFlag(wxTE_RIGHT) )
 900                 align = 1.0;
 901             else if ( HasFlag(wxTE_CENTRE) )
 902                 align = 0.5;
 903             else // single line
 904                 align = 0.0;
 905
 906             gtk_entry_set_alignment(GTK_ENTRY(m_text), align);
 907         }
 908 #endif // __WXGTK24__
 909     }
 910
 911 }
 912
 913 void wxTextCtrl::SetWindowStyleFlag(long style)
 914 {
 915     long styleOld = GetWindowStyleFlag();
 916
 917     wxTextCtrlBase::SetWindowStyleFlag(style);
 918
 919     if ( (style & wxTE_READONLY) != (styleOld & wxTE_READONLY) )
 920         GTKSetEditable();
 921
 922     if ( (style & wxTE_PASSWORD) != (styleOld & wxTE_PASSWORD) )
 923         GTKSetVisibility();
 924
 925     static const long flagsWrap = wxTE_WORDWRAP | wxTE_CHARWRAP | wxTE_DONTWRAP;
 926     if ( (style & flagsWrap) != (styleOld & flagsWrap) )
 927         GTKSetWrapMode();
 928
 929     static const long flagsAlign = wxTE_LEFT | wxTE_CENTRE | wxTE_RIGHT;
 930     if ( (style & flagsAlign) != (styleOld & flagsAlign) )
 931         GTKSetJustification();
 932 }
 933
 934 // ----------------------------------------------------------------------------
 935 // control value
 936 // ----------------------------------------------------------------------------
 937
 938 wxString wxTextCtrl::GetValue() const
 939 {
 940     wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
 941
 942     wxString tmp;
 943     if ( IsMultiLine() )
 944     {
 945         GtkTextIter start;
 946         gtk_text_buffer_get_start_iter( m_buffer, &start );
 947         GtkTextIter end;
 948         gtk_text_buffer_get_end_iter( m_buffer, &end );
 949         wxGtkString text(gtk_text_buffer_get_text(m_buffer, &start, &end, true));
 950
 951         const wxWxCharBuffer buf = wxGTK_CONV_BACK(text);
 952         if ( buf )
 953             tmp = buf;
 954     }
 955     else
 956     {
 957         const gchar *text = gtk_entry_get_text( GTK_ENTRY(m_text) );
 958         const wxWxCharBuffer buf = wxGTK_CONV_BACK( text );
 959         if ( buf )
 960             tmp = buf;
 961     }
 962
 963     return tmp;
 964 }
 965
 966 wxFontEncoding wxTextCtrl::GetTextEncoding() const
 967 {
 968     // GTK+ uses UTF-8 internally, we need to convert to it but from which
 969     // encoding?
 970
 971     // first check the default text style (we intentionally don't check the
 972     // style for the current position as it doesn't make sense for SetValue())
 973     const wxTextAttr& style = GetDefaultStyle();
 974     wxFontEncoding enc = style.HasFont() ? style.GetFont().GetEncoding()
 975                                          : wxFONTENCODING_SYSTEM;
 976
 977     // fall back to the controls font if no style
 978     if ( enc == wxFONTENCODING_SYSTEM && m_hasFont )
 979         enc = GetFont().GetEncoding();
 980
 981     return enc;
 982 }
 983
 984 bool wxTextCtrl::IsEmpty() const
 985 {
 986     if ( IsMultiLine() )
 987         return gtk_text_buffer_get_char_count(m_buffer) == 0;
 988
 989     return wxTextCtrlBase::IsEmpty();
 990 }
 991
 992 void wxTextCtrl::DoSetValue( const wxString &value, int flags )
 993 {
 994     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 995
 996     // the control won't be modified any more as we programmatically replace
 997     // all the existing text, so reset the flag and don't set it again (and do
 998     // it now, before the text event handler is ran so that IsModified() called
 999     // from there returns the expected value)
1000     m_modified = false;
1001     DontMarkDirtyOnNextChange();
1002
1003     const wxCharBuffer buffer(wxGTK_CONV_ENC(value, GetTextEncoding()));
1004     if ( !buffer )
1005     {
1006         // see comment in WriteText() as to why we must warn the user about
1007         // this
1008         wxLogWarning(_("Failed to set text in the text control."));
1009         return;
1010     }
1011
1012     // if the control is not empty, two "changed" signals are emitted,
1013     // otherwise only one and we need to ignore either both or one of them
1014     int ignore = flags & SetValue_SendEvent ? 0 : 1;
1015     if ( !IsEmpty() )
1016         ignore++;
1017
1018     if ( ignore )
1019         IgnoreNextTextUpdate(ignore);
1020
1021     if ( IsMultiLine() )
1022     {
1023         gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
1024     }
1025     else // single line
1026     {
1027         gtk_entry_set_text( GTK_ENTRY(m_text), buffer );
1028     }
1029
1030     // if, for whatever reason, the callback wasn't called the expected number
1031     // of times, still reset the flags to the default values
1032     m_dontMarkDirty = false;
1033     m_countUpdatesToIgnore = 0;
1034
1035
1036     // GRG, Jun/2000: Changed this after a lot of discussion in
1037     //   the lists. wxWidgets 2.2 will have a set of flags to
1038     //   customize this behaviour.
1039     SetInsertionPoint(0);
1040 }
1041
1042 void wxTextCtrl::WriteText( const wxString &text )
1043 {
1044     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1045
1046     if ( text.empty() )
1047         return;
1048
1049     // check if we have a specific style for the current position
1050     wxFontEncoding enc = wxFONTENCODING_SYSTEM;
1051     wxTextAttr style;
1052     if ( GetStyle(GetInsertionPoint(), style) && style.HasFont() )
1053     {
1054         enc = style.GetFont().GetEncoding();
1055     }
1056
1057     if ( enc == wxFONTENCODING_SYSTEM )
1058         enc = GetTextEncoding();
1059
1060     const wxCharBuffer buffer(wxGTK_CONV_ENC(text, enc));
1061     if ( !buffer )
1062     {
1063         // we must log an error here as losing the text like this can be a
1064         // serious problem (e.g. imagine the document edited by user being
1065         // empty instead of containing the correct text)
1066         wxLogWarning(_("Failed to insert text in the control."));
1067         return;
1068     }
1069
1070     // we're changing the text programmatically
1071     DontMarkDirtyOnNextChange();
1072
1073     if ( IsMultiLine() )
1074     {
1075         // First remove the selection if there is one
1076         // TODO:  Is there an easier GTK specific way to do this?
1077         long from, to;
1078         GetSelection(&from, &to);
1079         if (from != to)
1080             Remove(from, to);
1081
1082         // Insert the text
1083         wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
1084
1085         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
1086         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
1087         // won't work when frozen, text view is not using m_buffer then
1088         if (!IsFrozen() && wxIsSameDouble(adj->value, adj->upper - adj->page_size))
1089         {
1090             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
1091                     gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
1092         }
1093     }
1094     else // single line
1095     {
1096         // First remove the selection if there is one
1097         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
1098
1099         // This moves the cursor pos to behind the inserted text.
1100         gint len = gtk_editable_get_position(GTK_EDITABLE(m_text));
1101
1102         gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
1103
1104         // Bring entry's cursor uptodate.
1105         gtk_editable_set_position( GTK_EDITABLE(m_text), len );
1106     }
1107 }
1108
1109 void wxTextCtrl::AppendText( const wxString &text )
1110 {
1111     SetInsertionPointEnd();
1112     WriteText( text );
1113 }
1114
1115 wxString wxTextCtrl::GetLineText( long lineNo ) const
1116 {
1117     wxString result;
1118     if ( IsMultiLine() )
1119     {
1120         GtkTextIter line;
1121         gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1122         GtkTextIter end = line;
1123         gtk_text_iter_forward_to_line_end(&end);
1124         wxGtkString text(gtk_text_buffer_get_text(m_buffer, &line, &end, true));
1125         result = wxGTK_CONV_BACK(text);
1126     }
1127     else
1128     {
1129         if (lineNo == 0)
1130             result = GetValue();
1131     }
1132     return result;
1133 }
1134
1135 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1136 {
1137   /* If you implement this, don't forget to update the documentation!
1138    * (file docs/latex/wx/text.tex) */
1139     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1140 }
1141
1142 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1143 {
1144     if ( IsMultiLine() )
1145     {
1146         GtkTextIter iter;
1147
1148         if (pos > GetLastPosition())
1149             return false;
1150
1151         gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
1152
1153         if ( y )
1154             *y = gtk_text_iter_get_line(&iter);
1155         if ( x )
1156             *x = gtk_text_iter_get_line_offset(&iter);
1157     }
1158     else // single line control
1159     {
1160         if ( pos <= GTK_ENTRY(m_text)->text_length )
1161         {
1162             if ( y )
1163                 *y = 0;
1164             if ( x )
1165                 *x = pos;
1166         }
1167         else
1168         {
1169             // index out of bounds
1170             return false;
1171         }
1172     }
1173
1174     return true;
1175 }
1176
1177 long wxTextCtrl::XYToPosition(long x, long y ) const
1178 {
1179     if ( IsSingleLine() )
1180         return 0;
1181
1182     GtkTextIter iter;
1183     if (y >= gtk_text_buffer_get_line_count (m_buffer))
1184         return -1;
1185
1186     gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
1187     if (x >= gtk_text_iter_get_chars_in_line (&iter))
1188         return -1;
1189
1190     return gtk_text_iter_get_offset(&iter) + x;
1191 }
1192
1193 int wxTextCtrl::GetLineLength(long lineNo) const
1194 {
1195     if ( IsMultiLine() )
1196     {
1197         int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
1198         if (lineNo > last_line)
1199             return -1;
1200
1201         GtkTextIter iter;
1202         gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
1203         // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
1204         return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
1205     }
1206     else
1207     {
1208         wxString str = GetLineText (lineNo);
1209         return (int) str.length();
1210     }
1211 }
1212
1213 int wxTextCtrl::GetNumberOfLines() const
1214 {
1215     if ( IsMultiLine() )
1216     {
1217         return gtk_text_buffer_get_line_count( m_buffer );
1218     }
1219     else // single line
1220     {
1221         return 1;
1222     }
1223 }
1224
1225 void wxTextCtrl::SetInsertionPoint( long pos )
1226 {
1227     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1228
1229     if ( IsMultiLine() )
1230     {
1231         GtkTextIter iter;
1232         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1233         gtk_text_buffer_place_cursor( m_buffer, &iter );
1234         GtkTextMark* mark = gtk_text_buffer_get_insert(m_buffer);
1235         if (IsFrozen())
1236             // defer until Thaw, text view is not using m_buffer now
1237             m_showPositionOnThaw = mark;
1238         else
1239             gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1240     }
1241     else
1242     {
1243         // FIXME: Is the editable's cursor really uptodate without double set_position in GTK2?
1244         gtk_editable_set_position(GTK_EDITABLE(m_text), int(pos));
1245     }
1246 }
1247
1248 void wxTextCtrl::SetInsertionPointEnd()
1249 {
1250     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1251
1252     if ( IsMultiLine() )
1253     {
1254         GtkTextIter end;
1255         gtk_text_buffer_get_end_iter( m_buffer, &end );
1256         gtk_text_buffer_place_cursor( m_buffer, &end );
1257     }
1258     else
1259     {
1260         gtk_editable_set_position( GTK_EDITABLE(m_text), -1 );
1261     }
1262 }
1263
1264 void wxTextCtrl::SetEditable( bool editable )
1265 {
1266     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1267
1268     if ( IsMultiLine() )
1269     {
1270         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1271     }
1272     else
1273     {
1274         gtk_editable_set_editable( GTK_EDITABLE(m_text), editable );
1275     }
1276 }
1277
1278 bool wxTextCtrl::Enable( bool enable )
1279 {
1280     if (!wxWindowBase::Enable(enable))
1281     {
1282         // nothing to do
1283         return false;
1284     }
1285
1286     if ( IsMultiLine() )
1287     {
1288         SetEditable( enable );
1289     }
1290     else
1291     {
1292         gtk_widget_set_sensitive( m_text, enable );
1293     }
1294
1295     return true;
1296 }
1297
1298 // wxGTK-specific: called recursively by Enable,
1299 // to give widgets an oppprtunity to correct their colours after they
1300 // have been changed by Enable
1301 void wxTextCtrl::OnParentEnable( bool enable )
1302 {
1303     // If we have a custom background colour, we use this colour in both
1304     // disabled and enabled mode, or we end up with a different colour under the
1305     // text.
1306     wxColour oldColour = GetBackgroundColour();
1307     if (oldColour.Ok())
1308     {
1309         // Need to set twice or it'll optimize the useful stuff out
1310         if (oldColour == * wxWHITE)
1311             SetBackgroundColour(*wxBLACK);
1312         else
1313             SetBackgroundColour(*wxWHITE);
1314         SetBackgroundColour(oldColour);
1315     }
1316 }
1317
1318 void wxTextCtrl::MarkDirty()
1319 {
1320     m_modified = true;
1321 }
1322
1323 void wxTextCtrl::DiscardEdits()
1324 {
1325     m_modified = false;
1326 }
1327
1328 // ----------------------------------------------------------------------------
1329 // max text length support
1330 // ----------------------------------------------------------------------------
1331
1332 bool wxTextCtrl::IgnoreTextUpdate()
1333 {
1334     if ( m_countUpdatesToIgnore > 0 )
1335     {
1336         m_countUpdatesToIgnore--;
1337
1338         return true;
1339     }
1340
1341     return false;
1342 }
1343
1344 bool wxTextCtrl::MarkDirtyOnChange()
1345 {
1346     if ( m_dontMarkDirty )
1347     {
1348         m_dontMarkDirty = false;
1349
1350         return false;
1351     }
1352
1353     return true;
1354 }
1355
1356 void wxTextCtrl::SetMaxLength(unsigned long len)
1357 {
1358     if ( !HasFlag(wxTE_MULTILINE) )
1359     {
1360         gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1361
1362         // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1363         // we had tried to enter more text than allowed by max text length and
1364         // the text wasn't really changed
1365         //
1366         // to detect this and generate TEXT_MAXLEN event instead of
1367         // TEXT_CHANGED one in this case we also catch "insert_text" signal
1368         //
1369         // when max len is set to 0 we disconnect our handler as it means that
1370         // we shouldn't check anything any more
1371         if ( len )
1372         {
1373             g_signal_connect (m_text, "insert_text",
1374                               G_CALLBACK (gtk_insert_text_callback), this);
1375         }
1376         else // no checking
1377         {
1378             g_signal_handlers_disconnect_by_func (m_text,
1379                     (gpointer) gtk_insert_text_callback, this);
1380         }
1381     }
1382 }
1383
1384 void wxTextCtrl::SetSelection( long from, long to )
1385 {
1386     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1387
1388     if (from == -1 && to == -1)
1389     {
1390         from = 0;
1391         to = GetValue().length();
1392     }
1393
1394     if ( IsMultiLine() )
1395     {
1396         GtkTextIter fromi, toi;
1397         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1398         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1399
1400         gtk_text_buffer_place_cursor( m_buffer, &toi );
1401         gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1402     }
1403     else
1404     {
1405         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1406     }
1407 }
1408
1409 void wxTextCtrl::ShowPosition( long pos )
1410 {
1411     if (IsMultiLine())
1412     {
1413         GtkTextIter iter;
1414         gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, int(pos));
1415         GtkTextMark* mark = gtk_text_buffer_get_mark(m_buffer, "ShowPosition");
1416         gtk_text_buffer_move_mark(m_buffer, mark, &iter);
1417         if (IsFrozen())
1418             // defer until Thaw, text view is not using m_buffer now
1419             m_showPositionOnThaw = mark;
1420         else
1421             gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1422     }
1423 }
1424
1425 wxTextCtrlHitTestResult
1426 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1427 {
1428     if ( !IsMultiLine() )
1429     {
1430         // not supported
1431         return wxTE_HT_UNKNOWN;
1432     }
1433
1434     int x, y;
1435     gtk_text_view_window_to_buffer_coords
1436     (
1437         GTK_TEXT_VIEW(m_text),
1438         GTK_TEXT_WINDOW_TEXT,
1439         pt.x, pt.y,
1440         &x, &y
1441     );
1442
1443     GtkTextIter iter;
1444     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1445     if ( pos )
1446         *pos = gtk_text_iter_get_offset(&iter);
1447
1448     return wxTE_HT_ON_TEXT;
1449 }
1450
1451 long wxTextCtrl::GetInsertionPoint() const
1452 {
1453     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1454
1455     if ( IsMultiLine() )
1456     {
1457         // There is no direct accessor for the cursor, but
1458         // internally, the cursor is the "mark" called
1459         // "insert" in the text view's btree structure.
1460
1461         GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1462         GtkTextIter cursor;
1463         gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1464
1465         return gtk_text_iter_get_offset( &cursor );
1466     }
1467     else
1468     {
1469         return (long) gtk_editable_get_position(GTK_EDITABLE(m_text));
1470     }
1471 }
1472
1473 wxTextPos wxTextCtrl::GetLastPosition() const
1474 {
1475     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1476
1477     int pos = 0;
1478
1479     if ( IsMultiLine() )
1480     {
1481         GtkTextIter end;
1482         gtk_text_buffer_get_end_iter( m_buffer, &end );
1483
1484         pos = gtk_text_iter_get_offset( &end );
1485     }
1486     else
1487     {
1488         pos = GTK_ENTRY(m_text)->text_length;
1489     }
1490
1491     return (long)pos;
1492 }
1493
1494 void wxTextCtrl::Remove( long from, long to )
1495 {
1496     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1497
1498     if ( IsMultiLine() )
1499     {
1500         GtkTextIter fromi, toi;
1501         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1502         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1503
1504         gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1505     }
1506     else // single line
1507         gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1508 }
1509
1510 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1511 {
1512     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1513
1514     Remove( from, to );
1515
1516     if (!value.empty())
1517     {
1518         SetInsertionPoint( from );
1519         WriteText( value );
1520     }
1521 }
1522
1523 void wxTextCtrl::Cut()
1524 {
1525     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1526
1527     if ( IsMultiLine() )
1528         g_signal_emit_by_name (m_text, "cut-clipboard");
1529     else
1530         gtk_editable_cut_clipboard(GTK_EDITABLE(m_text));
1531 }
1532
1533 void wxTextCtrl::Copy()
1534 {
1535     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1536
1537     if ( IsMultiLine() )
1538         g_signal_emit_by_name (m_text, "copy-clipboard");
1539     else
1540         gtk_editable_copy_clipboard(GTK_EDITABLE(m_text));
1541 }
1542
1543 void wxTextCtrl::Paste()
1544 {
1545     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1546
1547     if ( IsMultiLine() )
1548         g_signal_emit_by_name (m_text, "paste-clipboard");
1549     else
1550         gtk_editable_paste_clipboard(GTK_EDITABLE(m_text));
1551 }
1552
1553 // Undo/redo
1554 void wxTextCtrl::Undo()
1555 {
1556     // TODO
1557     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1558 }
1559
1560 void wxTextCtrl::Redo()
1561 {
1562     // TODO
1563     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1564 }
1565
1566 bool wxTextCtrl::CanUndo() const
1567 {
1568     // TODO
1569     //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1570     return false;
1571 }
1572
1573 bool wxTextCtrl::CanRedo() const
1574 {
1575     // TODO
1576     //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1577     return false;
1578 }
1579
1580 // If the return values from and to are the same, there is no
1581 // selection.
1582 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1583 {
1584     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1585
1586     gint from = -1;
1587     gint to = -1;
1588     bool haveSelection = false;
1589
1590      if ( IsMultiLine() )
1591      {
1592          GtkTextIter ifrom, ito;
1593          if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1594          {
1595              haveSelection = true;
1596              from = gtk_text_iter_get_offset(&ifrom);
1597              to = gtk_text_iter_get_offset(&ito);
1598          }
1599      }
1600      else  // not multi-line
1601      {
1602          if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1603                                                  &from, &to) )
1604          {
1605              haveSelection = true;
1606          }
1607      }
1608
1609      if (! haveSelection )
1610           from = to = GetInsertionPoint();
1611
1612      if ( from > to )
1613      {
1614          // exchange them to be compatible with wxMSW
1615          gint tmp = from;
1616          from = to;
1617          to = tmp;
1618      }
1619
1620     if ( fromOut )
1621         *fromOut = from;
1622     if ( toOut )
1623         *toOut = to;
1624 }
1625
1626
1627 bool wxTextCtrl::IsEditable() const
1628 {
1629     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1630
1631     if ( IsMultiLine() )
1632     {
1633         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1634     }
1635     else
1636     {
1637         return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1638     }
1639 }
1640
1641 bool wxTextCtrl::IsModified() const
1642 {
1643     return m_modified;
1644 }
1645
1646 void wxTextCtrl::Clear()
1647 {
1648     SetValue( wxEmptyString );
1649 }
1650
1651 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1652 {
1653     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1654
1655     if ( key_event.GetKeyCode() == WXK_RETURN )
1656     {
1657         if ( HasFlag(wxTE_PROCESS_ENTER) )
1658         {
1659             wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1660             event.SetEventObject(this);
1661             event.SetString(GetValue());
1662             if ( GetEventHandler()->ProcessEvent(event) )
1663                 return;
1664         }
1665
1666         // FIXME: this is not the right place to do it, wxDialog::OnCharHook()
1667         //        probably is
1668         if ( IsSingleLine() )
1669         {
1670             // This will invoke the dialog default action, such
1671             // as the clicking the default button.
1672
1673             wxWindow *top_frame = m_parent;
1674             while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1675                 top_frame = top_frame->GetParent();
1676
1677             if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1678             {
1679                 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1680
1681                 if (window->default_widget)
1682                 {
1683                     gtk_widget_activate (window->default_widget);
1684                     return;
1685                 }
1686             }
1687         }
1688     }
1689
1690     key_event.Skip();
1691 }
1692
1693 GtkWidget* wxTextCtrl::GetConnectWidget()
1694 {
1695     return GTK_WIDGET(m_text);
1696 }
1697
1698 GdkWindow *wxTextCtrl::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
1699 {
1700     if ( IsMultiLine() )
1701     {
1702         return gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1703                                         GTK_TEXT_WINDOW_TEXT );
1704     }
1705     else
1706     {
1707         return GTK_ENTRY(m_text)->text_area;
1708     }
1709 }
1710
1711 // the font will change for subsequent text insertiongs
1712 bool wxTextCtrl::SetFont( const wxFont &font )
1713 {
1714     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1715
1716     if ( !wxTextCtrlBase::SetFont(font) )
1717     {
1718         // font didn't change, nothing to do
1719         return false;
1720     }
1721
1722     if ( IsMultiLine() )
1723     {
1724         SetUpdateFont(true);
1725
1726         m_defaultStyle.SetFont(font);
1727
1728         ChangeFontGlobally();
1729     }
1730
1731     return true;
1732 }
1733
1734 void wxTextCtrl::ChangeFontGlobally()
1735 {
1736     // this method is very inefficient and hence should be called as rarely as
1737     // possible!
1738     //
1739     // TODO: it can be implemented much more efficiently for GTK2
1740     wxASSERT_MSG( IsMultiLine(),
1741                   _T("shouldn't be called for single line controls") );
1742
1743     wxString value = GetValue();
1744     if ( !value.empty() )
1745     {
1746         SetUpdateFont(false);
1747
1748         Clear();
1749         AppendText(value);
1750     }
1751 }
1752
1753 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1754 {
1755     if ( !wxControl::SetForegroundColour(colour) )
1756         return false;
1757
1758     // update default fg colour too
1759     m_defaultStyle.SetTextColour(colour);
1760
1761     return true;
1762 }
1763
1764 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1765 {
1766     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1767
1768     if ( !wxControl::SetBackgroundColour( colour ) )
1769         return false;
1770
1771     if (!m_backgroundColour.Ok())
1772         return false;
1773
1774     // change active background color too
1775     m_defaultStyle.SetBackgroundColour( colour );
1776
1777     return true;
1778 }
1779
1780 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1781 {
1782     if ( IsMultiLine() )
1783     {
1784         if ( style.IsDefault() )
1785         {
1786             // nothing to do
1787             return true;
1788         }
1789
1790         gint l = gtk_text_buffer_get_char_count( m_buffer );
1791
1792         wxCHECK_MSG( start >= 0 && end <= l, false,
1793                      _T("invalid range in wxTextCtrl::SetStyle") );
1794
1795         GtkTextIter starti, endi;
1796         gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1797         gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1798
1799         // use the attributes from style which are set in it and fall back
1800         // first to the default style and then to the text control default
1801         // colours for the others
1802         wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1803
1804         wxGtkTextApplyTagsFromAttr( m_widget, m_buffer, attr, &starti, &endi );
1805
1806         return true;
1807     }
1808
1809     // else single line
1810     // cannot do this for GTK+'s Entry widget
1811     return false;
1812 }
1813
1814 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1815 {
1816     gtk_widget_modify_style(m_text, style);
1817 }
1818
1819 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1820 {
1821     Cut();
1822 }
1823
1824 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1825 {
1826     Copy();
1827 }
1828
1829 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1830 {
1831     Paste();
1832 }
1833
1834 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1835 {
1836     Undo();
1837 }
1838
1839 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1840 {
1841     Redo();
1842 }
1843
1844 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1845 {
1846     event.Enable( CanCut() );
1847 }
1848
1849 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1850 {
1851     event.Enable( CanCopy() );
1852 }
1853
1854 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1855 {
1856     event.Enable( CanPaste() );
1857 }
1858
1859 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1860 {
1861     event.Enable( CanUndo() );
1862 }
1863
1864 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1865 {
1866     event.Enable( CanRedo() );
1867 }
1868
1869 wxSize wxTextCtrl::DoGetBestSize() const
1870 {
1871     // FIXME should be different for multi-line controls...
1872     wxSize ret( wxControl::DoGetBestSize() );
1873     wxSize best(80, ret.y);
1874     CacheBestSize(best);
1875     return best;
1876 }
1877
1878 // ----------------------------------------------------------------------------
1879 // freeze/thaw
1880 // ----------------------------------------------------------------------------
1881
1882 void wxTextCtrl::Freeze()
1883 {
1884     wxCHECK_RET(m_text != NULL, wxT("invalid text ctrl"));
1885
1886     if ( HasFlag(wxTE_MULTILINE) )
1887     {
1888         if (m_freezeCount++ == 0)
1889         {
1890             // freeze textview updates and remove buffer
1891             g_signal_connect (m_text, "expose_event",
1892                               G_CALLBACK (gtk_text_exposed_callback), this);
1893             g_signal_connect (m_widget, "expose_event",
1894                               G_CALLBACK (gtk_text_exposed_callback), this);
1895             gtk_widget_set_sensitive(m_widget, false);
1896             g_object_ref(m_buffer);
1897             GtkTextBuffer* buf_new = gtk_text_buffer_new(NULL);
1898             GtkTextMark* mark = GTK_TEXT_VIEW(m_text)->first_para_mark;
1899             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), buf_new);
1900             // gtk_text_view_set_buffer adds its own reference
1901             g_object_unref(buf_new);
1902             // This mark should be deleted when the buffer is changed,
1903             // but it's not (in GTK+ up to at least 2.10.6).
1904             // Otherwise these anonymous marks start to build up in the buffer,
1905             // and Freeze takes longer and longer each time it is called.
1906             if (GTK_IS_TEXT_MARK(mark) && !gtk_text_mark_get_deleted(mark))
1907                 gtk_text_buffer_delete_mark(m_buffer, mark);
1908         }
1909     }
1910 }
1911
1912 void wxTextCtrl::Thaw()
1913 {
1914     if ( HasFlag(wxTE_MULTILINE) )
1915     {
1916         wxCHECK_RET(m_freezeCount != 0, _T("Thaw() without matching Freeze()"));
1917
1918         if (--m_freezeCount == 0)
1919         {
1920             // Reattach buffer and thaw textview updates
1921             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1922             g_object_unref(m_buffer);
1923             gtk_widget_set_sensitive(m_widget, true);
1924             g_signal_handlers_disconnect_by_func (m_widget,
1925                     (gpointer) gtk_text_exposed_callback, this);
1926             g_signal_handlers_disconnect_by_func (m_text,
1927                     (gpointer) gtk_text_exposed_callback, this);
1928             if (m_showPositionOnThaw != NULL)
1929             {
1930                 gtk_text_view_scroll_mark_onscreen(
1931                     GTK_TEXT_VIEW(m_text), m_showPositionOnThaw);
1932                 m_showPositionOnThaw = NULL;
1933             }
1934         }
1935     }
1936 }
1937
1938 // ----------------------------------------------------------------------------
1939 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
1940 // ----------------------------------------------------------------------------
1941
1942 // FIXME: when dragging on a link the sample gets an "Unknown event".
1943 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
1944 // a buggy sample, or something else
1945 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
1946 {
1947     event.Skip();
1948     if( !HasFlag(wxTE_AUTO_URL) )
1949         return;
1950
1951     gint x, y;
1952     GtkTextIter start, end;
1953     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
1954                                                 "wxUrl");
1955
1956     gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
1957                                           event.GetX(), event.GetY(), &x, &y);
1958
1959     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
1960     if (!gtk_text_iter_has_tag(&end, tag))
1961     {
1962         gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1963                               GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
1964         return;
1965     }
1966
1967     gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1968                           GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
1969
1970     start = end;
1971     if(!gtk_text_iter_begins_tag(&start, tag))
1972         gtk_text_iter_backward_to_tag_toggle(&start, tag);
1973     if(!gtk_text_iter_ends_tag(&end, tag))
1974         gtk_text_iter_forward_to_tag_toggle(&end, tag);
1975
1976     // Native context menu is probably not desired on an URL.
1977     // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
1978     if(event.GetEventType() == wxEVT_RIGHT_DOWN)
1979         event.Skip(false);
1980
1981     wxTextUrlEvent url_event(m_windowId, event,
1982                              gtk_text_iter_get_offset(&start),
1983                              gtk_text_iter_get_offset(&end));
1984
1985     InitCommandEvent(url_event);
1986     // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
1987     //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
1988     GetEventHandler()->ProcessEvent(url_event);
1989 }
1990
1991 bool wxTextCtrl::GTKProcessEvent(wxEvent& event) const
1992 {
1993     bool rc = wxTextCtrlBase::GTKProcessEvent(event);
1994
1995     // GtkTextView starts a drag operation when left mouse button is pressed
1996     // and ends it when it is released and if it doesn't get the release event
1997     // the next click on a control results in an assertion failure inside
1998     // gtk_text_view_start_selection_drag() which simply *kills* the program
1999     // without anything we can do about it, so always let GTK+ have this event
2000     return rc && (IsSingleLine() || event.GetEventType() != wxEVT_LEFT_UP);
2001 }
2002
2003 // static
2004 wxVisualAttributes
2005 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
2006 {
2007     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
2008 }