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 #if wxUSE_TEXTCTRL
  14
  15 #include "wx/textctrl.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/intl.h"
  19     #include "wx/log.h"
  20     #include "wx/utils.h"
  21     #include "wx/settings.h"
  22     #include "wx/math.h"
  23 #endif
  24
  25 #include "wx/scopeguard.h"
  26 #include "wx/strconv.h"
  27 #include "wx/fontutil.h"        // for wxNativeFontInfo (GetNativeFontInfo())
  28
  29 #include <sys/types.h>
  30 #include <sys/stat.h>
  31 #include <ctype.h>
  32
  33 #include <gtk/gtk.h>
  34 #include "wx/gtk/private.h"
  35 #include "wx/gtk/private/gtk2-compat.h"
  36
  37 // ----------------------------------------------------------------------------
  38 // helpers
  39 // ----------------------------------------------------------------------------
  40
  41 extern "C" {
  42 static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
  43                              GtkTextTag *tag,
  44                              GtkTextIter * WXUNUSED(start),
  45                              GtkTextIter * WXUNUSED(end),
  46                              char *prefix)
  47 {
  48     gchar *name;
  49     g_object_get (tag, "name", &name, NULL);
  50
  51     if (!name || strncmp(name, prefix, strlen(prefix)))
  52         // anonymous tag or not starting with prefix - don't remove
  53         g_signal_stop_emission_by_name (buffer, "remove_tag");
  54
  55     g_free(name);
  56 }
  57 }
  58
  59 // remove all tags starting with the given prefix from the start..end range
  60 static void
  61 wxGtkTextRemoveTagsWithPrefix(GtkTextBuffer *text_buffer,
  62                               const char *prefix,
  63                               GtkTextIter *start,
  64                               GtkTextIter *end)
  65 {
  66     gulong remove_handler_id = g_signal_connect
  67                                (
  68                                 text_buffer,
  69                                 "remove_tag",
  70                                 G_CALLBACK(wxGtkOnRemoveTag),
  71                                 gpointer(prefix)
  72                                );
  73     gtk_text_buffer_remove_all_tags(text_buffer, start, end);
  74     g_signal_handler_disconnect(text_buffer, remove_handler_id);
  75 }
  76
  77 static void wxGtkTextApplyTagsFromAttr(GtkWidget *text,
  78                                        GtkTextBuffer *text_buffer,
  79                                        const wxTextAttr& attr,
  80                                        GtkTextIter *start,
  81                                        GtkTextIter *end)
  82 {
  83     static gchar buf[1024];
  84     GtkTextTag *tag;
  85
  86     if (attr.HasFont())
  87     {
  88         wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXFONT", start, end);
  89
  90         wxFont font(attr.GetFont());
  91
  92         PangoFontDescription *font_description = font.GetNativeFontInfo()->description;
  93         wxGtkString font_string(pango_font_description_to_string(font_description));
  94         g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string.c_str());
  95         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
  96                                          buf );
  97         if (!tag)
  98             tag = gtk_text_buffer_create_tag( text_buffer, buf,
  99                                               "font-desc", font_description,
 100                                               NULL );
 101         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 102
 103         if (font.GetUnderlined())
 104         {
 105             g_snprintf(buf, sizeof(buf), "WXFONTUNDERLINE");
 106             tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 107                                              buf );
 108             if (!tag)
 109                 tag = gtk_text_buffer_create_tag( text_buffer, buf,
 110                                                   "underline-set", TRUE,
 111                                                   "underline", PANGO_UNDERLINE_SINGLE,
 112                                                   NULL );
 113             gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 114         }
 115         if ( font.GetStrikethrough() )
 116         {
 117             g_snprintf(buf, sizeof(buf), "WXFONTSTRIKETHROUGH");
 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                                                   "strikethrough-set", TRUE,
 123                                                   "strikethrough", TRUE,
 124                                                   NULL );
 125             gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 126         }
 127     }
 128
 129     if (attr.HasTextColour())
 130     {
 131         wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXFORECOLOR", start, end);
 132
 133         const GdkColor *colFg = attr.GetTextColour().GetColor();
 134         g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
 135                    colFg->red, colFg->green, colFg->blue);
 136         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 137                                          buf );
 138         if (!tag)
 139             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 140                                               "foreground-gdk", colFg, NULL );
 141         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 142     }
 143
 144     if (attr.HasBackgroundColour())
 145     {
 146         wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXBACKCOLOR", start, end);
 147
 148         const GdkColor *colBg = attr.GetBackgroundColour().GetColor();
 149         g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
 150                    colBg->red, colBg->green, colBg->blue);
 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                                               "background-gdk", colBg, NULL );
 156         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 157     }
 158
 159     if (attr.HasAlignment())
 160     {
 161         GtkTextIter para_start, para_end = *end;
 162         gtk_text_buffer_get_iter_at_line( text_buffer,
 163                                           &para_start,
 164                                           gtk_text_iter_get_line(start) );
 165         gtk_text_iter_forward_line(&para_end);
 166
 167         wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXALIGNMENT", &para_start, &para_end);
 168
 169         GtkJustification align;
 170         switch (attr.GetAlignment())
 171         {
 172             case wxTEXT_ALIGNMENT_RIGHT:
 173                 align = GTK_JUSTIFY_RIGHT;
 174                 break;
 175             case wxTEXT_ALIGNMENT_CENTER:
 176                 align = GTK_JUSTIFY_CENTER;
 177                 break;
 178             case wxTEXT_ALIGNMENT_JUSTIFIED:
 179 #ifdef __WXGTK3__
 180                 align = GTK_JUSTIFY_FILL;
 181                 break;
 182 #elif GTK_CHECK_VERSION(2,11,0)
 183 // gtk+ doesn't support justify before gtk+-2.11.0 with pango-1.17 being available
 184 // (but if new enough pango isn't available it's a mere gtk warning)
 185                 if (!gtk_check_version(2,11,0))
 186                 {
 187                     align = GTK_JUSTIFY_FILL;
 188                     break;
 189                 }
 190                 // fallthrough
 191 #endif
 192             default:
 193                 align = GTK_JUSTIFY_LEFT;
 194                 break;
 195         }
 196
 197         g_snprintf(buf, sizeof(buf), "WXALIGNMENT %d", align);
 198         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 199                                          buf );
 200         if (!tag)
 201             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 202                                               "justification", align, NULL );
 203         gtk_text_buffer_apply_tag( text_buffer, tag, &para_start, &para_end );
 204     }
 205
 206     if (attr.HasLeftIndent())
 207     {
 208         // Indentation attribute
 209
 210         // Clear old indentation tags
 211         GtkTextIter para_start, para_end = *end;
 212         gtk_text_buffer_get_iter_at_line( text_buffer,
 213                                           &para_start,
 214                                           gtk_text_iter_get_line(start) );
 215         gtk_text_iter_forward_line(&para_end);
 216
 217         wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXINDENT", &para_start, &para_end);
 218
 219         // Convert indent from 1/10th of a mm into pixels
 220         float factor =
 221             (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
 222                       gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
 223
 224         const int indent = (int)(factor * attr.GetLeftIndent());
 225         const int subIndent = (int)(factor * attr.GetLeftSubIndent());
 226
 227         gint gindent;
 228         gint gsubindent;
 229
 230         if (subIndent >= 0)
 231         {
 232             gindent = indent;
 233             gsubindent = -subIndent;
 234         }
 235         else
 236         {
 237             gindent = -subIndent;
 238             gsubindent = indent;
 239         }
 240
 241         g_snprintf(buf, sizeof(buf), "WXINDENT %d %d", gindent, gsubindent);
 242         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 243                                         buf );
 244         if (!tag)
 245             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 246                                               "left-margin", gindent, "indent", gsubindent, NULL );
 247         gtk_text_buffer_apply_tag (text_buffer, tag, &para_start, &para_end);
 248     }
 249
 250     if (attr.HasTabs())
 251     {
 252         // Set tab stops
 253
 254         // Clear old tabs
 255         GtkTextIter para_start, para_end = *end;
 256         gtk_text_buffer_get_iter_at_line( text_buffer,
 257                                           &para_start,
 258                                           gtk_text_iter_get_line(start) );
 259         gtk_text_iter_forward_line(&para_end);
 260
 261         wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXTABS", &para_start, &para_end);
 262
 263         const wxArrayInt& tabs = attr.GetTabs();
 264
 265         wxString tagname = wxT("WXTABS");
 266         g_snprintf(buf, sizeof(buf), "WXTABS");
 267         for (size_t i = 0; i < tabs.GetCount(); i++)
 268             tagname += wxString::Format(wxT(" %d"), tabs[i]);
 269
 270         const wxWX2MBbuf buftag = tagname.utf8_str();
 271
 272         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 273                                         buftag );
 274         if (!tag)
 275         {
 276             // Factor to convert from 1/10th of a mm into pixels
 277             float factor =
 278                 (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
 279                           gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
 280
 281             PangoTabArray* tabArray = pango_tab_array_new(tabs.GetCount(), TRUE);
 282             for (size_t i = 0; i < tabs.GetCount(); i++)
 283                 pango_tab_array_set_tab(tabArray, i, PANGO_TAB_LEFT, (gint)(tabs[i] * factor));
 284             tag = gtk_text_buffer_create_tag( text_buffer, buftag,
 285                                               "tabs", tabArray, NULL );
 286             pango_tab_array_free(tabArray);
 287         }
 288         gtk_text_buffer_apply_tag (text_buffer, tag, &para_start, &para_end);
 289     }
 290 }
 291
 292 static void wxGtkTextInsert(GtkWidget *text,
 293                             GtkTextBuffer *text_buffer,
 294                             const wxTextAttr& attr,
 295                             const wxCharBuffer& buffer)
 296
 297 {
 298     gint start_offset;
 299     GtkTextIter iter, start;
 300
 301     gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
 302                                      gtk_text_buffer_get_insert (text_buffer) );
 303     start_offset = gtk_text_iter_get_offset (&iter);
 304     gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
 305
 306     gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
 307
 308     wxGtkTextApplyTagsFromAttr(text, text_buffer, attr, &start, &iter);
 309 }
 310
 311 // Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
 312
 313 extern "C" {
 314 static void
 315 au_apply_tag_callback(GtkTextBuffer *buffer,
 316                       GtkTextTag *tag,
 317                       GtkTextIter * WXUNUSED(start),
 318                       GtkTextIter * WXUNUSED(end),
 319                       gpointer WXUNUSED(textctrl))
 320 {
 321     if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
 322         g_signal_stop_emission_by_name (buffer, "apply_tag");
 323 }
 324 }
 325
 326 //-----------------------------------------------------------------------------
 327 //  GtkTextCharPredicates for gtk_text_iter_*_find_char
 328 //-----------------------------------------------------------------------------
 329
 330 extern "C" {
 331 static gboolean
 332 pred_whitespace(gunichar ch, gpointer WXUNUSED(user_data))
 333 {
 334     return g_unichar_isspace(ch);
 335 }
 336 }
 337
 338 extern "C" {
 339 static gboolean
 340 pred_non_whitespace (gunichar ch, gpointer WXUNUSED(user_data))
 341 {
 342     return !g_unichar_isspace(ch);
 343 }
 344 }
 345
 346 extern "C" {
 347 static gboolean
 348 pred_nonpunct (gunichar ch, gpointer WXUNUSED(user_data))
 349 {
 350     return !g_unichar_ispunct(ch);
 351 }
 352 }
 353
 354 extern "C" {
 355 static gboolean
 356 pred_nonpunct_or_slash (gunichar ch, gpointer WXUNUSED(user_data))
 357 {
 358     return !g_unichar_ispunct(ch) || ch == '/';
 359 }
 360 }
 361
 362 //-----------------------------------------------------------------------------
 363 //  Check for links between s and e and correct tags as necessary
 364 //-----------------------------------------------------------------------------
 365
 366 // This function should be made match better while being efficient at one point.
 367 // Most probably with a row of regular expressions.
 368 extern "C" {
 369 static void
 370 au_check_word( GtkTextIter *s, GtkTextIter *e )
 371 {
 372     static const char *const URIPrefixes[] =
 373     {
 374         "http://",
 375         "ftp://",
 376         "www.",
 377         "ftp.",
 378         "mailto://",
 379         "https://",
 380         "file://",
 381         "nntp://",
 382         "news://",
 383         "telnet://",
 384         "mms://",
 385         "gopher://",
 386         "prospero://",
 387         "wais://",
 388     };
 389
 390     GtkTextIter start = *s, end = *e;
 391     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 392
 393     // Get our special link tag
 394     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 395
 396     // Get rid of punctuation from beginning and end.
 397     // Might want to move this to au_check_range if an improved link checking doesn't
 398     // use some intelligent punctuation checking itself (beware of undesired iter modifications).
 399     if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
 400         gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
 401
 402     gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
 403     gtk_text_iter_forward_char(&end);
 404
 405     wxGtkString text(gtk_text_iter_get_text( &start, &end ));
 406     size_t len = strlen(text), prefix_len;
 407     size_t n;
 408
 409     for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
 410     {
 411         prefix_len = strlen(URIPrefixes[n]);
 412         if((len > prefix_len) && !wxStrnicmp(text, URIPrefixes[n], prefix_len))
 413             break;
 414     }
 415
 416     if(n < WXSIZEOF(URIPrefixes))
 417     {
 418         gulong signal_id = g_signal_handler_find (buffer,
 419                                                   (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
 420                                                   0, 0, NULL,
 421                                                   (gpointer)au_apply_tag_callback, NULL);
 422
 423         g_signal_handler_block (buffer, signal_id);
 424         gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
 425         g_signal_handler_unblock (buffer, signal_id);
 426     }
 427 }
 428 }
 429
 430 extern "C" {
 431 static void
 432 au_check_range(GtkTextIter *s,
 433                GtkTextIter *range_end)
 434 {
 435     GtkTextIter range_start = *s;
 436     GtkTextIter word_end;
 437     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 438     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 439
 440     gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
 441
 442     if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
 443         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 444
 445     while(!gtk_text_iter_equal(&range_start, range_end))
 446     {
 447         word_end = range_start;
 448         gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
 449
 450         // Now we should have a word delimited by range_start and word_end, correct link tags
 451         au_check_word(&range_start, &word_end);
 452
 453         range_start = word_end;
 454         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 455     }
 456 }
 457 }
 458
 459 //-----------------------------------------------------------------------------
 460 //  "insert-text" for GtkTextBuffer
 461 //-----------------------------------------------------------------------------
 462
 463 extern "C" {
 464 static void
 465 au_insert_text_callback(GtkTextBuffer * WXUNUSED(buffer),
 466                         GtkTextIter *end,
 467                         gchar *text,
 468                         gint len,
 469                         wxTextCtrl *win)
 470 {
 471     if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 472         return;
 473
 474     GtkTextIter start = *end;
 475     gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
 476
 477     GtkTextIter line_start = start;
 478     GtkTextIter line_end = *end;
 479     GtkTextIter words_start = start;
 480     GtkTextIter words_end = *end;
 481
 482     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
 483     gtk_text_iter_forward_to_line_end(&line_end);
 484     gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
 485     gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
 486
 487     au_check_range(&words_start, &words_end);
 488 }
 489 }
 490
 491 //-----------------------------------------------------------------------------
 492 //  "delete-range" for GtkTextBuffer
 493 //-----------------------------------------------------------------------------
 494
 495 extern "C" {
 496 static void
 497 au_delete_range_callback(GtkTextBuffer * WXUNUSED(buffer),
 498                          GtkTextIter *start,
 499                          GtkTextIter *end,
 500                          wxTextCtrl *win)
 501 {
 502     if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 503         return;
 504
 505     GtkTextIter line_start = *start, line_end = *end;
 506
 507     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
 508     gtk_text_iter_forward_to_line_end(&line_end);
 509     gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
 510     gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
 511
 512     au_check_range(start, end);
 513 }
 514 }
 515
 516 //-----------------------------------------------------------------------------
 517 //  "populate_popup" from text control and "unmap" from its poup menu
 518 //-----------------------------------------------------------------------------
 519
 520 extern "C" {
 521 static void
 522 gtk_textctrl_popup_unmap( GtkMenu *WXUNUSED(menu), wxTextCtrl* win )
 523 {
 524     win->GTKEnableFocusOutEvent();
 525 }
 526 }
 527
 528 extern "C" {
 529 static void
 530 gtk_textctrl_populate_popup( GtkEntry *WXUNUSED(entry), GtkMenu *menu, wxTextCtrl *win )
 531 {
 532     win->GTKDisableFocusOutEvent();
 533
 534     g_signal_connect (menu, "unmap", G_CALLBACK (gtk_textctrl_popup_unmap), win );
 535 }
 536 }
 537
 538 //-----------------------------------------------------------------------------
 539 //  "changed"
 540 //-----------------------------------------------------------------------------
 541
 542 extern "C" {
 543 static void
 544 gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
 545 {
 546     if ( win->IgnoreTextUpdate() )
 547         return;
 548
 549     if (!win->m_hasVMT) return;
 550
 551     if ( win->MarkDirtyOnChange() )
 552         win->MarkDirty();
 553
 554     win->SendTextUpdatedEvent();
 555 }
 556 }
 557
 558 //-----------------------------------------------------------------------------
 559 //  clipboard events: "copy-clipboard", "cut-clipboard", "paste-clipboard"
 560 //-----------------------------------------------------------------------------
 561
 562 // common part of the event handlers below
 563 static void
 564 handle_text_clipboard_callback( GtkWidget *widget, wxTextCtrl *win,
 565                                 wxEventType eventType, const gchar * signal_name)
 566 {
 567     wxClipboardTextEvent event( eventType, win->GetId() );
 568     event.SetEventObject( win );
 569     if ( win->HandleWindowEvent( event ) )
 570     {
 571         // don't let the default processing to take place if we did something
 572         // ourselves in the event handler
 573         g_signal_stop_emission_by_name (widget, signal_name);
 574     }
 575 }
 576
 577 extern "C" {
 578 static void
 579 gtk_copy_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 580 {
 581     handle_text_clipboard_callback(
 582         widget, win, wxEVT_COMMAND_TEXT_COPY, "copy-clipboard" );
 583 }
 584
 585 static void
 586 gtk_cut_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 587 {
 588     handle_text_clipboard_callback(
 589         widget, win, wxEVT_COMMAND_TEXT_CUT, "cut-clipboard" );
 590 }
 591
 592 static void
 593 gtk_paste_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 594 {
 595     handle_text_clipboard_callback(
 596         widget, win, wxEVT_COMMAND_TEXT_PASTE, "paste-clipboard" );
 597 }
 598 }
 599
 600 //-----------------------------------------------------------------------------
 601 //  "mark_set"
 602 //-----------------------------------------------------------------------------
 603
 604 extern "C" {
 605 static void mark_set(GtkTextBuffer*, GtkTextIter*, GtkTextMark* mark, GSList** markList)
 606 {
 607     if (gtk_text_mark_get_name(mark) == NULL)
 608         *markList = g_slist_prepend(*markList, mark);
 609 }
 610 }
 611
 612 //-----------------------------------------------------------------------------
 613 //  wxTextCtrl
 614 //-----------------------------------------------------------------------------
 615
 616 BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase)
 617     EVT_CHAR(wxTextCtrl::OnChar)
 618
 619     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 620     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 621     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 622     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 623     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 624
 625     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 626     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 627     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 628     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 629     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 630
 631     // wxTE_AUTO_URL wxTextUrl support. Currently only creates
 632     // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
 633     EVT_MOTION      (wxTextCtrl::OnUrlMouseEvent)
 634     EVT_LEFT_DOWN   (wxTextCtrl::OnUrlMouseEvent)
 635     EVT_LEFT_UP     (wxTextCtrl::OnUrlMouseEvent)
 636     EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
 637     EVT_RIGHT_DOWN  (wxTextCtrl::OnUrlMouseEvent)
 638     EVT_RIGHT_UP    (wxTextCtrl::OnUrlMouseEvent)
 639     EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
 640 END_EVENT_TABLE()
 641
 642 void wxTextCtrl::Init()
 643 {
 644     m_dontMarkDirty =
 645     m_modified = false;
 646
 647     m_countUpdatesToIgnore = 0;
 648
 649     SetUpdateFont(false);
 650
 651     m_text = NULL;
 652     m_showPositionOnThaw = NULL;
 653     m_anonymousMarkList = NULL;
 654 }
 655
 656 wxTextCtrl::~wxTextCtrl()
 657 {
 658     if (m_anonymousMarkList)
 659         g_slist_free(m_anonymousMarkList);
 660 }
 661
 662 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 663                         wxWindowID id,
 664                         const wxString &value,
 665                         const wxPoint &pos,
 666                         const wxSize &size,
 667                         long style,
 668                         const wxValidator& validator,
 669                         const wxString &name )
 670 {
 671     Init();
 672
 673     Create( parent, id, value, pos, size, style, validator, name );
 674 }
 675
 676 bool wxTextCtrl::Create( wxWindow *parent,
 677                          wxWindowID id,
 678                          const wxString &value,
 679                          const wxPoint &pos,
 680                          const wxSize &size,
 681                          long style,
 682                          const wxValidator& validator,
 683                          const wxString &name )
 684 {
 685     if (!PreCreation( parent, pos, size ) ||
 686         !CreateBase( parent, id, pos, size, style, validator, name ))
 687     {
 688         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 689         return false;
 690     }
 691
 692     bool multi_line = (style & wxTE_MULTILINE) != 0;
 693
 694     if (multi_line)
 695     {
 696         m_buffer = gtk_text_buffer_new(NULL);
 697         gulong sig_id = g_signal_connect(m_buffer, "mark_set", G_CALLBACK(mark_set), &m_anonymousMarkList);
 698         // Create view
 699         m_text = gtk_text_view_new_with_buffer(m_buffer);
 700         // gtk_text_view_set_buffer adds its own reference
 701         g_object_unref(m_buffer);
 702         g_signal_handler_disconnect(m_buffer, sig_id);
 703
 704         // create "ShowPosition" marker
 705         GtkTextIter iter;
 706         gtk_text_buffer_get_start_iter(m_buffer, &iter);
 707         gtk_text_buffer_create_mark(m_buffer, "ShowPosition", &iter, true);
 708
 709         // create scrolled window
 710         m_widget = gtk_scrolled_window_new( NULL, NULL );
 711         gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
 712                                         GTK_POLICY_AUTOMATIC,
 713                                         style & wxTE_NO_VSCROLL
 714                                             ? GTK_POLICY_NEVER
 715                                             : GTK_POLICY_AUTOMATIC );
 716         // for ScrollLines/Pages
 717         m_scrollBar[1] = GTK_RANGE(gtk_scrolled_window_get_vscrollbar(GTK_SCROLLED_WINDOW(m_widget)));
 718
 719         // Insert view into scrolled window
 720         gtk_container_add( GTK_CONTAINER(m_widget), m_text );
 721
 722         GTKSetWrapMode();
 723
 724         GTKScrolledWindowSetBorder(m_widget, style);
 725
 726         gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
 727
 728         gtk_widget_set_can_focus(m_widget, FALSE);
 729     }
 730     else
 731     {
 732         // a single-line text control: no need for scrollbars
 733         m_widget =
 734         m_text = gtk_entry_new();
 735         // work around probable bug in GTK+ 2.18 when calling WriteText on a
 736         // new, empty control, see http://trac.wxwidgets.org/ticket/11409
 737         gtk_entry_get_text((GtkEntry*)m_text);
 738
 739         if (style & wxNO_BORDER)
 740             g_object_set (m_text, "has-frame", FALSE, NULL);
 741
 742     }
 743     g_object_ref(m_widget);
 744
 745     m_parent->DoAddChild( this );
 746
 747     m_focusWidget = m_text;
 748
 749     PostCreation(size);
 750
 751     if (multi_line)
 752     {
 753         gtk_widget_show(m_text);
 754     }
 755
 756     // We want to be notified about text changes.
 757     if (multi_line)
 758     {
 759         g_signal_connect (m_buffer, "changed",
 760                           G_CALLBACK (gtk_text_changed_callback), this);
 761     }
 762     else
 763     {
 764         g_signal_connect (m_text, "changed",
 765                           G_CALLBACK (gtk_text_changed_callback), this);
 766     }
 767
 768     // Catch to disable focus out handling
 769     g_signal_connect (m_text, "populate_popup",
 770                       G_CALLBACK (gtk_textctrl_populate_popup),
 771                       this);
 772
 773     if (!value.empty())
 774     {
 775         SetValue( value );
 776     }
 777
 778     if (style & wxTE_PASSWORD)
 779         GTKSetVisibility();
 780
 781     if (style & wxTE_READONLY)
 782         GTKSetEditable();
 783
 784     // left justification (alignment) is the default anyhow
 785     if ( style & (wxTE_RIGHT | wxTE_CENTRE) )
 786         GTKSetJustification();
 787
 788     if (multi_line)
 789     {
 790         // Handle URLs on multi-line controls with wxTE_AUTO_URL style
 791         if (style & wxTE_AUTO_URL)
 792         {
 793             GtkTextIter start, end;
 794
 795             // We create our wxUrl tag here for slight efficiency gain - we
 796             // don't have to check for the tag existence in callbacks,
 797             // hereby it's guaranteed to exist.
 798             gtk_text_buffer_create_tag(m_buffer, "wxUrl",
 799                                        "foreground", "blue",
 800                                        "underline", PANGO_UNDERLINE_SINGLE,
 801                                        NULL);
 802
 803             // Check for URLs after each text change
 804             g_signal_connect_after (m_buffer, "insert_text",
 805                                     G_CALLBACK (au_insert_text_callback), this);
 806             g_signal_connect_after (m_buffer, "delete_range",
 807                                     G_CALLBACK (au_delete_range_callback), this);
 808
 809             // Block all wxUrl tag applying unless we do it ourselves, in which case we
 810             // block this callback temporarily. This takes care of gtk+ internal
 811             // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
 812             // which is undesired because only a part of the URL might be copied.
 813             // The insert-text signal emitted inside it will take care of newly formed
 814             // or wholly copied URLs.
 815             g_signal_connect (m_buffer, "apply_tag",
 816                               G_CALLBACK (au_apply_tag_callback), NULL);
 817
 818             // Check for URLs in the initial string passed to Create
 819             gtk_text_buffer_get_start_iter(m_buffer, &start);
 820             gtk_text_buffer_get_end_iter(m_buffer, &end);
 821             au_check_range(&start, &end);
 822         }
 823     }
 824     else // single line
 825     {
 826         // do the right thing with Enter presses depending on whether we have
 827         // wxTE_PROCESS_ENTER or not
 828         GTKSetActivatesDefault();
 829     }
 830
 831
 832     g_signal_connect (m_text, "copy-clipboard",
 833                       G_CALLBACK (gtk_copy_clipboard_callback), this);
 834     g_signal_connect (m_text, "cut-clipboard",
 835                       G_CALLBACK (gtk_cut_clipboard_callback), this);
 836     g_signal_connect (m_text, "paste-clipboard",
 837                       G_CALLBACK (gtk_paste_clipboard_callback), this);
 838
 839     m_cursor = wxCursor( wxCURSOR_IBEAM );
 840
 841     return true;
 842 }
 843
 844 GtkEditable *wxTextCtrl::GetEditable() const
 845 {
 846     wxCHECK_MSG( IsSingleLine(), NULL, "shouldn't be called for multiline" );
 847
 848     return GTK_EDITABLE(m_text);
 849 }
 850
 851 GtkEntry *wxTextCtrl::GetEntry() const
 852 {
 853     return GTK_ENTRY(m_text);
 854 }
 855
 856 // ----------------------------------------------------------------------------
 857 // flags handling
 858 // ----------------------------------------------------------------------------
 859
 860 void wxTextCtrl::GTKSetEditable()
 861 {
 862     gboolean editable = !HasFlag(wxTE_READONLY);
 863     if ( IsSingleLine() )
 864         gtk_editable_set_editable(GTK_EDITABLE(m_text), editable);
 865     else
 866         gtk_text_view_set_editable(GTK_TEXT_VIEW(m_text), editable);
 867 }
 868
 869 void wxTextCtrl::GTKSetVisibility()
 870 {
 871     wxCHECK_RET( IsSingleLine(),
 872                  "wxTE_PASSWORD is for single line text controls only" );
 873
 874     gtk_entry_set_visibility(GTK_ENTRY(m_text), !HasFlag(wxTE_PASSWORD));
 875 }
 876
 877 void wxTextCtrl::GTKSetActivatesDefault()
 878 {
 879     wxCHECK_RET( IsSingleLine(),
 880                  "wxTE_PROCESS_ENTER is for single line text controls only" );
 881
 882     gtk_entry_set_activates_default(GTK_ENTRY(m_text),
 883                                     !HasFlag(wxTE_PROCESS_ENTER));
 884 }
 885
 886 void wxTextCtrl::GTKSetWrapMode()
 887 {
 888     // no wrapping in single line controls
 889     if ( !IsMultiLine() )
 890         return;
 891
 892     // translate wx wrapping style to GTK+
 893     GtkWrapMode wrap;
 894     if ( HasFlag( wxTE_DONTWRAP ) )
 895         wrap = GTK_WRAP_NONE;
 896     else if ( HasFlag( wxTE_CHARWRAP ) )
 897         wrap = GTK_WRAP_CHAR;
 898     else if ( HasFlag( wxTE_WORDWRAP ) )
 899         wrap = GTK_WRAP_WORD;
 900     else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
 901         wrap = GTK_WRAP_WORD_CHAR;
 902
 903     gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
 904 }
 905
 906 void wxTextCtrl::GTKSetJustification()
 907 {
 908     if ( IsMultiLine() )
 909     {
 910         GtkJustification just;
 911         if ( HasFlag(wxTE_RIGHT) )
 912             just = GTK_JUSTIFY_RIGHT;
 913         else if ( HasFlag(wxTE_CENTRE) )
 914             just = GTK_JUSTIFY_CENTER;
 915         else // wxTE_LEFT == 0
 916             just = GTK_JUSTIFY_LEFT;
 917
 918         gtk_text_view_set_justification(GTK_TEXT_VIEW(m_text), just);
 919     }
 920     else // single line
 921     {
 922         gfloat align;
 923         if ( HasFlag(wxTE_RIGHT) )
 924             align = 1.0;
 925         else if ( HasFlag(wxTE_CENTRE) )
 926             align = 0.5;
 927         else // single line
 928             align = 0.0;
 929
 930         gtk_entry_set_alignment(GTK_ENTRY(m_text), align);
 931     }
 932 }
 933
 934 void wxTextCtrl::SetWindowStyleFlag(long style)
 935 {
 936     long styleOld = GetWindowStyleFlag();
 937
 938     wxTextCtrlBase::SetWindowStyleFlag(style);
 939
 940     if ( (style & wxTE_READONLY) != (styleOld & wxTE_READONLY) )
 941         GTKSetEditable();
 942
 943     if ( (style & wxTE_PASSWORD) != (styleOld & wxTE_PASSWORD) )
 944         GTKSetVisibility();
 945
 946     if ( (style & wxTE_PROCESS_ENTER) != (styleOld & wxTE_PROCESS_ENTER) )
 947         GTKSetActivatesDefault();
 948
 949     static const long flagsWrap = wxTE_WORDWRAP | wxTE_CHARWRAP | wxTE_DONTWRAP;
 950     if ( (style & flagsWrap) != (styleOld & flagsWrap) )
 951         GTKSetWrapMode();
 952
 953     static const long flagsAlign = wxTE_LEFT | wxTE_CENTRE | wxTE_RIGHT;
 954     if ( (style & flagsAlign) != (styleOld & flagsAlign) )
 955         GTKSetJustification();
 956 }
 957
 958 // ----------------------------------------------------------------------------
 959 // control value
 960 // ----------------------------------------------------------------------------
 961
 962 wxString wxTextCtrl::GetValue() const
 963 {
 964     wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
 965
 966     if ( IsMultiLine() )
 967     {
 968         GtkTextIter start;
 969         gtk_text_buffer_get_start_iter( m_buffer, &start );
 970         GtkTextIter end;
 971         gtk_text_buffer_get_end_iter( m_buffer, &end );
 972         wxGtkString text(gtk_text_buffer_get_text(m_buffer, &start, &end, true));
 973
 974         return wxGTK_CONV_BACK(text);
 975     }
 976     else // single line
 977     {
 978         return wxTextEntry::GetValue();
 979     }
 980 }
 981
 982 wxFontEncoding wxTextCtrl::GetTextEncoding() const
 983 {
 984     // GTK+ uses UTF-8 internally, we need to convert to it but from which
 985     // encoding?
 986
 987     // first check the default text style (we intentionally don't check the
 988     // style for the current position as it doesn't make sense for SetValue())
 989     const wxTextAttr& style = GetDefaultStyle();
 990     wxFontEncoding enc = style.HasFontEncoding() ? style.GetFontEncoding()
 991                                          : wxFONTENCODING_SYSTEM;
 992
 993     // fall back to the controls font if no style
 994     if ( enc == wxFONTENCODING_SYSTEM && m_hasFont )
 995         enc = GetFont().GetEncoding();
 996
 997     return enc;
 998 }
 999
1000 bool wxTextCtrl::IsEmpty() const
1001 {
1002     if ( IsMultiLine() )
1003         return gtk_text_buffer_get_char_count(m_buffer) == 0;
1004
1005     return wxTextEntry::IsEmpty();
1006 }
1007
1008 void wxTextCtrl::DoSetValue( const wxString &value, int flags )
1009 {
1010     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1011
1012     m_modified = false;
1013
1014     if ( !IsMultiLine() )
1015     {
1016         wxTextEntry::DoSetValue(value, flags);
1017         return;
1018     }
1019
1020     if (value.IsEmpty())
1021     {
1022         if ( !(flags & SetValue_SendEvent) )
1023             EnableTextChangedEvents(false);
1024
1025         gtk_text_buffer_set_text( m_buffer, "", 0 );
1026
1027         if ( !(flags & SetValue_SendEvent) )
1028             EnableTextChangedEvents(true);
1029
1030         return;
1031     }
1032
1033 #if wxUSE_UNICODE
1034     const wxCharBuffer buffer(value.utf8_str());
1035 #else
1036     wxFontEncoding enc = m_defaultStyle.HasFont()
1037                             ? m_defaultStyle.GetFont().GetEncoding()
1038                             : wxFONTENCODING_SYSTEM;
1039     if ( enc == wxFONTENCODING_SYSTEM )
1040         enc = GetTextEncoding();
1041
1042     const wxCharBuffer buffer(wxGTK_CONV_ENC(value, enc));
1043     if ( !buffer )
1044     {
1045         // see comment in WriteText() as to why we must warn the user about
1046         // this
1047         wxLogWarning(_("Failed to set text in the text control."));
1048         return;
1049     }
1050 #endif
1051
1052     if ( !(flags & SetValue_SendEvent) )
1053     {
1054         EnableTextChangedEvents(false);
1055     }
1056
1057     gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
1058
1059     if ( !m_defaultStyle.IsDefault() )
1060     {
1061         GtkTextIter start, end;
1062         gtk_text_buffer_get_bounds( m_buffer, &start, &end );
1063         wxGtkTextApplyTagsFromAttr(m_widget, m_buffer, m_defaultStyle,
1064                                    &start, &end);
1065     }
1066
1067     if ( !(flags & SetValue_SendEvent) )
1068     {
1069         EnableTextChangedEvents(true);
1070     }
1071 }
1072
1073 void wxTextCtrl::WriteText( const wxString &text )
1074 {
1075     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1076
1077     // we're changing the text programmatically
1078     DontMarkDirtyOnNextChange();
1079
1080     if ( !IsMultiLine() )
1081     {
1082         wxTextEntry::WriteText(text);
1083         return;
1084     }
1085
1086 #if wxUSE_UNICODE
1087     const wxCharBuffer buffer(text.utf8_str());
1088 #else
1089     // check if we have a specific style for the current position
1090     wxFontEncoding enc = wxFONTENCODING_SYSTEM;
1091     wxTextAttr style;
1092     if ( GetStyle(GetInsertionPoint(), style) && style.HasFontEncoding() )
1093     {
1094         enc = style.GetFontEncoding();
1095     }
1096
1097     if ( enc == wxFONTENCODING_SYSTEM )
1098         enc = GetTextEncoding();
1099
1100     const wxCharBuffer buffer(wxGTK_CONV_ENC(text, enc));
1101     if ( !buffer )
1102     {
1103         // we must log an error here as losing the text like this can be a
1104         // serious problem (e.g. imagine the document edited by user being
1105         // empty instead of containing the correct text)
1106         wxLogWarning(_("Failed to insert text in the control."));
1107         return;
1108     }
1109 #endif
1110
1111     // First remove the selection if there is one
1112     // TODO:  Is there an easier GTK specific way to do this?
1113     long from, to;
1114     GetSelection(&from, &to);
1115     if (from != to)
1116         Remove(from, to);
1117
1118     // Insert the text
1119     wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
1120
1121     // Scroll to cursor, but only if scrollbar thumb is at the very bottom
1122     // won't work when frozen, text view is not using m_buffer then
1123     if (!IsFrozen())
1124     {
1125         GtkAdjustment* adj = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
1126         const double value = gtk_adjustment_get_value(adj);
1127         const double upper = gtk_adjustment_get_upper(adj);
1128         const double page_size = gtk_adjustment_get_page_size(adj);
1129         if (wxIsSameDouble(value, upper - page_size))
1130         {
1131             gtk_text_view_scroll_to_mark(GTK_TEXT_VIEW(m_text),
1132                 gtk_text_buffer_get_insert(m_buffer), 0, false, 0, 1);
1133         }
1134     }
1135 }
1136
1137 wxString wxTextCtrl::GetLineText( long lineNo ) const
1138 {
1139     wxString result;
1140     if ( IsMultiLine() )
1141     {
1142         GtkTextIter line;
1143         gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1144
1145         GtkTextIter end = line;
1146         // avoid skipping to the next line end if this one is empty
1147         if ( !gtk_text_iter_ends_line(&line) )
1148             gtk_text_iter_forward_to_line_end(&end);
1149
1150         wxGtkString text(gtk_text_buffer_get_text(m_buffer, &line, &end, true));
1151         result = wxGTK_CONV_BACK(text);
1152     }
1153     else
1154     {
1155         if (lineNo == 0)
1156             result = GetValue();
1157     }
1158     return result;
1159 }
1160
1161 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1162 {
1163   /* If you implement this, don't forget to update the documentation!
1164    * (file docs/latex/wx/text.tex) */
1165     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1166 }
1167
1168 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1169 {
1170     if ( IsMultiLine() )
1171     {
1172         GtkTextIter iter;
1173
1174         if (pos > GetLastPosition())
1175             return false;
1176
1177         gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
1178
1179         if ( y )
1180             *y = gtk_text_iter_get_line(&iter);
1181         if ( x )
1182             *x = gtk_text_iter_get_line_offset(&iter);
1183     }
1184     else // single line control
1185     {
1186         if (pos <= gtk_entry_get_text_length(GTK_ENTRY(m_text)))
1187         {
1188             if ( y )
1189                 *y = 0;
1190             if ( x )
1191                 *x = pos;
1192         }
1193         else
1194         {
1195             // index out of bounds
1196             return false;
1197         }
1198     }
1199
1200     return true;
1201 }
1202
1203 long wxTextCtrl::XYToPosition(long x, long y ) const
1204 {
1205     if ( IsSingleLine() )
1206         return 0;
1207
1208     GtkTextIter iter;
1209     if (y >= gtk_text_buffer_get_line_count (m_buffer))
1210         return -1;
1211
1212     gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
1213     if (x >= gtk_text_iter_get_chars_in_line (&iter))
1214         return -1;
1215
1216     return gtk_text_iter_get_offset(&iter) + x;
1217 }
1218
1219 int wxTextCtrl::GetLineLength(long lineNo) const
1220 {
1221     if ( IsMultiLine() )
1222     {
1223         int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
1224         if (lineNo > last_line)
1225             return -1;
1226
1227         GtkTextIter iter;
1228         gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
1229         // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
1230         return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
1231     }
1232     else
1233     {
1234         wxString str = GetLineText (lineNo);
1235         return (int) str.length();
1236     }
1237 }
1238
1239 wxPoint wxTextCtrl::DoPositionToCoords(long pos) const
1240 {
1241     if ( !IsMultiLine() )
1242     {
1243         // Single line text entry (GtkTextEntry) doesn't have support for
1244         // getting the coordinates for the given offset. Perhaps we could
1245         // find them ourselves by using GetTextExtent() but for now just leave
1246         // it unimplemented, this function is more useful for multiline
1247         // controls anyhow.
1248         return wxDefaultPosition;
1249     }
1250
1251     // Window coordinates for the given position is calculated by getting
1252     // the buffer coordinates and converting them to window coordinates.
1253     GtkTextView *textview = GTK_TEXT_VIEW(m_text);
1254
1255     GtkTextIter iter;
1256     gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
1257
1258     GdkRectangle bufferCoords;
1259     gtk_text_view_get_iter_location(textview, &iter, &bufferCoords);
1260
1261     gint winCoordX = 0,
1262          winCoordY = 0;
1263     gtk_text_view_buffer_to_window_coords(textview, GTK_TEXT_WINDOW_WIDGET,
1264                                           bufferCoords.x, bufferCoords.y,
1265                                           &winCoordX, &winCoordY);
1266
1267     return wxPoint(winCoordX, winCoordY);
1268 }
1269
1270 int wxTextCtrl::GetNumberOfLines() const
1271 {
1272     if ( IsMultiLine() )
1273     {
1274         return gtk_text_buffer_get_line_count( m_buffer );
1275     }
1276     else // single line
1277     {
1278         return 1;
1279     }
1280 }
1281
1282 void wxTextCtrl::SetInsertionPoint( long pos )
1283 {
1284     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1285
1286     if ( IsMultiLine() )
1287     {
1288         GtkTextIter iter;
1289         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1290         gtk_text_buffer_place_cursor( m_buffer, &iter );
1291         GtkTextMark* mark = gtk_text_buffer_get_insert(m_buffer);
1292         if (IsFrozen())
1293             // defer until Thaw, text view is not using m_buffer now
1294             m_showPositionOnThaw = mark;
1295         else
1296             gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1297     }
1298     else // single line
1299     {
1300         wxTextEntry::SetInsertionPoint(pos);
1301     }
1302 }
1303
1304 void wxTextCtrl::SetEditable( bool editable )
1305 {
1306     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1307
1308     if ( IsMultiLine() )
1309     {
1310         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1311     }
1312     else // single line
1313     {
1314         wxTextEntry::SetEditable(editable);
1315     }
1316 }
1317
1318 bool wxTextCtrl::Enable( bool enable )
1319 {
1320     if (!wxWindowBase::Enable(enable))
1321     {
1322         // nothing to do
1323         return false;
1324     }
1325
1326     gtk_widget_set_sensitive( m_text, enable );
1327     SetCursor(enable ? wxCursor(wxCURSOR_IBEAM) : wxCursor());
1328
1329     return true;
1330 }
1331
1332 // wxGTK-specific: called recursively by Enable,
1333 // to give widgets an opportunity to correct their colours after they
1334 // have been changed by Enable
1335 void wxTextCtrl::OnEnabled(bool WXUNUSED(enable))
1336 {
1337     // If we have a custom background colour, we use this colour in both
1338     // disabled and enabled mode, or we end up with a different colour under the
1339     // text.
1340     wxColour oldColour = GetBackgroundColour();
1341     if (oldColour.IsOk())
1342     {
1343         // Need to set twice or it'll optimize the useful stuff out
1344         if (oldColour == * wxWHITE)
1345             SetBackgroundColour(*wxBLACK);
1346         else
1347             SetBackgroundColour(*wxWHITE);
1348         SetBackgroundColour(oldColour);
1349     }
1350 }
1351
1352 void wxTextCtrl::MarkDirty()
1353 {
1354     m_modified = true;
1355 }
1356
1357 void wxTextCtrl::DiscardEdits()
1358 {
1359     m_modified = false;
1360 }
1361
1362 // ----------------------------------------------------------------------------
1363 // event handling
1364 // ----------------------------------------------------------------------------
1365
1366 void wxTextCtrl::EnableTextChangedEvents(bool enable)
1367 {
1368     if ( enable )
1369     {
1370         g_signal_handlers_unblock_by_func(GetTextObject(),
1371             (gpointer)gtk_text_changed_callback, this);
1372     }
1373     else // disable events
1374     {
1375         g_signal_handlers_block_by_func(GetTextObject(),
1376             (gpointer)gtk_text_changed_callback, this);
1377     }
1378 }
1379
1380 bool wxTextCtrl::IgnoreTextUpdate()
1381 {
1382     if ( m_countUpdatesToIgnore > 0 )
1383     {
1384         m_countUpdatesToIgnore--;
1385
1386         return true;
1387     }
1388
1389     return false;
1390 }
1391
1392 bool wxTextCtrl::MarkDirtyOnChange()
1393 {
1394     if ( m_dontMarkDirty )
1395     {
1396         m_dontMarkDirty = false;
1397
1398         return false;
1399     }
1400
1401     return true;
1402 }
1403
1404 void wxTextCtrl::SetSelection( long from, long to )
1405 {
1406     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1407
1408     if ( IsMultiLine() )
1409     {
1410         if (from == -1 && to == -1)
1411         {
1412             from = 0;
1413             to = GetValue().length();
1414         }
1415
1416         GtkTextIter fromi, toi;
1417         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1418         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1419
1420         gtk_text_buffer_select_range( m_buffer, &fromi, &toi );
1421     }
1422     else // single line
1423     {
1424         wxTextEntry::SetSelection(from, to);
1425     }
1426 }
1427
1428 void wxTextCtrl::ShowPosition( long pos )
1429 {
1430     if (IsMultiLine())
1431     {
1432         GtkTextIter iter;
1433         gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, int(pos));
1434         GtkTextMark* mark = gtk_text_buffer_get_mark(m_buffer, "ShowPosition");
1435         gtk_text_buffer_move_mark(m_buffer, mark, &iter);
1436         if (IsFrozen())
1437             // defer until Thaw, text view is not using m_buffer now
1438             m_showPositionOnThaw = mark;
1439         else
1440             gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1441     }
1442 }
1443
1444 wxTextCtrlHitTestResult
1445 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1446 {
1447     if ( !IsMultiLine() )
1448     {
1449         // not supported
1450         return wxTE_HT_UNKNOWN;
1451     }
1452
1453     int x, y;
1454     gtk_text_view_window_to_buffer_coords
1455     (
1456         GTK_TEXT_VIEW(m_text),
1457         GTK_TEXT_WINDOW_TEXT,
1458         pt.x, pt.y,
1459         &x, &y
1460     );
1461
1462     GtkTextIter iter;
1463     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1464     if ( pos )
1465         *pos = gtk_text_iter_get_offset(&iter);
1466
1467     return wxTE_HT_ON_TEXT;
1468 }
1469
1470 long wxTextCtrl::GetInsertionPoint() const
1471 {
1472     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1473
1474     if ( IsMultiLine() )
1475     {
1476         // There is no direct accessor for the cursor, but
1477         // internally, the cursor is the "mark" called
1478         // "insert" in the text view's btree structure.
1479
1480         GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1481         GtkTextIter cursor;
1482         gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1483
1484         return gtk_text_iter_get_offset( &cursor );
1485     }
1486     else
1487     {
1488         return wxTextEntry::GetInsertionPoint();
1489     }
1490 }
1491
1492 wxTextPos wxTextCtrl::GetLastPosition() const
1493 {
1494     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1495
1496     int pos = 0;
1497
1498     if ( IsMultiLine() )
1499     {
1500         GtkTextIter end;
1501         gtk_text_buffer_get_end_iter( m_buffer, &end );
1502
1503         pos = gtk_text_iter_get_offset( &end );
1504     }
1505     else // single line
1506     {
1507         pos = wxTextEntry::GetLastPosition();
1508     }
1509
1510     return (long)pos;
1511 }
1512
1513 void wxTextCtrl::Remove( long from, long to )
1514 {
1515     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1516
1517     if ( IsMultiLine() )
1518     {
1519         GtkTextIter fromi, toi;
1520         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1521         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1522
1523         gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1524     }
1525     else // single line
1526     {
1527         wxTextEntry::Remove(from, to);
1528     }
1529 }
1530
1531 void wxTextCtrl::Cut()
1532 {
1533     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1534
1535     if ( IsMultiLine() )
1536         g_signal_emit_by_name (m_text, "cut-clipboard");
1537     else
1538         wxTextEntry::Cut();
1539 }
1540
1541 void wxTextCtrl::Copy()
1542 {
1543     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1544
1545     if ( IsMultiLine() )
1546         g_signal_emit_by_name (m_text, "copy-clipboard");
1547     else
1548         wxTextEntry::Copy();
1549 }
1550
1551 void wxTextCtrl::Paste()
1552 {
1553     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1554
1555     if ( IsMultiLine() )
1556         g_signal_emit_by_name (m_text, "paste-clipboard");
1557     else
1558         wxTextEntry::Paste();
1559 }
1560
1561 // If the return values from and to are the same, there is no
1562 // selection.
1563 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1564 {
1565     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1566
1567     if ( !IsMultiLine() )
1568     {
1569         wxTextEntry::GetSelection(fromOut, toOut);
1570         return;
1571     }
1572
1573     gint from, to;
1574
1575     GtkTextIter ifrom, ito;
1576     if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1577     {
1578         from = gtk_text_iter_get_offset(&ifrom);
1579         to = gtk_text_iter_get_offset(&ito);
1580
1581         if ( from > to )
1582         {
1583             // exchange them to be compatible with wxMSW
1584             gint tmp = from;
1585             from = to;
1586             to = tmp;
1587         }
1588     }
1589     else // no selection
1590     {
1591         from =
1592         to = GetInsertionPoint();
1593     }
1594
1595     if ( fromOut )
1596         *fromOut = from;
1597     if ( toOut )
1598         *toOut = to;
1599 }
1600
1601
1602 bool wxTextCtrl::IsEditable() const
1603 {
1604     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1605
1606     if ( IsMultiLine() )
1607     {
1608         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text)) != 0;
1609     }
1610     else
1611     {
1612         return wxTextEntry::IsEditable();
1613     }
1614 }
1615
1616 bool wxTextCtrl::IsModified() const
1617 {
1618     return m_modified;
1619 }
1620
1621 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1622 {
1623     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1624
1625     if ( key_event.GetKeyCode() == WXK_RETURN )
1626     {
1627         if ( HasFlag(wxTE_PROCESS_ENTER) )
1628         {
1629             wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1630             event.SetEventObject(this);
1631             event.SetString(GetValue());
1632             if ( HandleWindowEvent(event) )
1633                 return;
1634         }
1635     }
1636
1637     key_event.Skip();
1638 }
1639
1640 GtkWidget* wxTextCtrl::GetConnectWidget()
1641 {
1642     return GTK_WIDGET(m_text);
1643 }
1644
1645 GdkWindow *wxTextCtrl::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
1646 {
1647     if ( IsMultiLine() )
1648     {
1649         return gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1650                                         GTK_TEXT_WINDOW_TEXT );
1651     }
1652     else
1653     {
1654 #ifdef __WXGTK3__
1655         // no access to internal GdkWindows
1656         return NULL;
1657 #else
1658         return gtk_entry_get_text_window(GTK_ENTRY(m_text));
1659 #endif
1660     }
1661 }
1662
1663 // the font will change for subsequent text insertiongs
1664 bool wxTextCtrl::SetFont( const wxFont &font )
1665 {
1666     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1667
1668     if ( !wxTextCtrlBase::SetFont(font) )
1669     {
1670         // font didn't change, nothing to do
1671         return false;
1672     }
1673
1674     if ( IsMultiLine() )
1675     {
1676         SetUpdateFont(true);
1677
1678         m_defaultStyle.SetFont(font);
1679
1680         ChangeFontGlobally();
1681     }
1682
1683     return true;
1684 }
1685
1686 void wxTextCtrl::ChangeFontGlobally()
1687 {
1688     // this method is very inefficient and hence should be called as rarely as
1689     // possible!
1690     //
1691     // TODO: it can be implemented much more efficiently for GTK2
1692     wxASSERT_MSG( IsMultiLine(),
1693                   wxT("shouldn't be called for single line controls") );
1694
1695     wxString value = GetValue();
1696     if ( !value.empty() )
1697     {
1698         SetUpdateFont(false);
1699
1700         Clear();
1701         AppendText(value);
1702     }
1703 }
1704
1705 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1706 {
1707     if ( !wxControl::SetForegroundColour(colour) )
1708         return false;
1709
1710     // update default fg colour too
1711     m_defaultStyle.SetTextColour(colour);
1712
1713     return true;
1714 }
1715
1716 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1717 {
1718     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1719
1720     if ( !wxControl::SetBackgroundColour( colour ) )
1721         return false;
1722
1723     if (!m_backgroundColour.IsOk())
1724         return false;
1725
1726     // change active background color too
1727     m_defaultStyle.SetBackgroundColour( colour );
1728
1729     return true;
1730 }
1731
1732 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1733 {
1734     if ( IsMultiLine() )
1735     {
1736         if ( style.IsDefault() )
1737         {
1738             // nothing to do
1739             return true;
1740         }
1741
1742         gint l = gtk_text_buffer_get_char_count( m_buffer );
1743
1744         wxCHECK_MSG( start >= 0 && end <= l, false,
1745                      wxT("invalid range in wxTextCtrl::SetStyle") );
1746
1747         GtkTextIter starti, endi;
1748         gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1749         gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1750
1751         wxGtkTextApplyTagsFromAttr( m_widget, m_buffer, style, &starti, &endi );
1752
1753         return true;
1754     }
1755     //else: single line text controls don't support styles
1756
1757     return false;
1758 }
1759
1760 bool wxTextCtrl::GetStyle(long position, wxTextAttr& style)
1761 {
1762     if ( !IsMultiLine() )
1763     {
1764         // no styles for GtkEntry
1765         return false;
1766     }
1767
1768     gint l = gtk_text_buffer_get_char_count( m_buffer );
1769
1770     wxCHECK_MSG( position >= 0 && position <= l, false,
1771                  wxT("invalid range in wxTextCtrl::GetStyle") );
1772
1773     GtkTextIter positioni;
1774     gtk_text_buffer_get_iter_at_offset(m_buffer, &positioni, position);
1775
1776     // Obtain a copy of the default attributes
1777     GtkTextAttributes * const
1778         pattr = gtk_text_view_get_default_attributes(GTK_TEXT_VIEW(m_text));
1779     wxON_BLOCK_EXIT1(gtk_text_attributes_unref, pattr);
1780
1781     // And query GTK for the attributes at the given position using it as base
1782     if ( !gtk_text_iter_get_attributes(&positioni, pattr) )
1783     {
1784         style = m_defaultStyle;
1785     }
1786     else // have custom attributes
1787     {
1788         style.SetBackgroundColour(pattr->appearance.bg_color);
1789         style.SetTextColour(pattr->appearance.fg_color);
1790
1791         const wxGtkString
1792             pangoFontString(pango_font_description_to_string(pattr->font));
1793
1794         wxFont font;
1795         if ( font.SetNativeFontInfo(wxString(pangoFontString)) )
1796             style.SetFont(font);
1797
1798         // TODO: set alignment, tabs and indents
1799     }
1800
1801     return true;
1802 }
1803
1804 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1805 {
1806     GTKApplyStyle(m_text, style);
1807 }
1808
1809 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1810 {
1811     Cut();
1812 }
1813
1814 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1815 {
1816     Copy();
1817 }
1818
1819 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1820 {
1821     Paste();
1822 }
1823
1824 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1825 {
1826     Undo();
1827 }
1828
1829 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1830 {
1831     Redo();
1832 }
1833
1834 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1835 {
1836     event.Enable( CanCut() );
1837 }
1838
1839 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1840 {
1841     event.Enable( CanCopy() );
1842 }
1843
1844 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1845 {
1846     event.Enable( CanPaste() );
1847 }
1848
1849 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1850 {
1851     event.Enable( CanUndo() );
1852 }
1853
1854 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1855 {
1856     event.Enable( CanRedo() );
1857 }
1858
1859 wxSize wxTextCtrl::DoGetBestSize() const
1860 {
1861     // FIXME should be different for multi-line controls...
1862     wxSize ret( wxControl::DoGetBestSize() );
1863     wxSize best(80, ret.y);
1864     CacheBestSize(best);
1865     return best;
1866 }
1867
1868 // ----------------------------------------------------------------------------
1869 // freeze/thaw
1870 // ----------------------------------------------------------------------------
1871
1872 void wxTextCtrl::DoFreeze()
1873 {
1874     wxCHECK_RET(m_text != NULL, wxT("invalid text ctrl"));
1875
1876     wxWindow::DoFreeze();
1877
1878     if ( HasFlag(wxTE_MULTILINE) )
1879     {
1880         GTKFreezeWidget(m_text);
1881
1882         // removing buffer dramatically speeds up insertion:
1883         g_object_ref(m_buffer);
1884         GtkTextBuffer* buf_new = gtk_text_buffer_new(NULL);
1885         gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), buf_new);
1886         // gtk_text_view_set_buffer adds its own reference
1887         g_object_unref(buf_new);
1888         // These marks should be deleted when the buffer is changed,
1889         // but they are not (in GTK+ up to at least 3.0.1).
1890         // Otherwise these anonymous marks start to build up in the buffer,
1891         // and Freeze takes longer and longer each time it is called.
1892         if (m_anonymousMarkList)
1893         {
1894             for (GSList* item = m_anonymousMarkList; item; item = item->next)
1895             {
1896                 GtkTextMark* mark = static_cast<GtkTextMark*>(item->data);
1897                 if (GTK_IS_TEXT_MARK(mark) && !gtk_text_mark_get_deleted(mark))
1898                     gtk_text_buffer_delete_mark(m_buffer, mark);
1899             }
1900             g_slist_free(m_anonymousMarkList);
1901             m_anonymousMarkList = NULL;
1902         }
1903     }
1904 }
1905
1906 void wxTextCtrl::DoThaw()
1907 {
1908     if ( HasFlag(wxTE_MULTILINE) )
1909     {
1910         // reattach buffer:
1911         gulong sig_id = g_signal_connect(m_buffer, "mark_set", G_CALLBACK(mark_set), &m_anonymousMarkList);
1912         gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1913         g_object_unref(m_buffer);
1914         g_signal_handler_disconnect(m_buffer, sig_id);
1915
1916         if (m_showPositionOnThaw != NULL)
1917         {
1918             gtk_text_view_scroll_mark_onscreen(
1919                 GTK_TEXT_VIEW(m_text), m_showPositionOnThaw);
1920             m_showPositionOnThaw = NULL;
1921         }
1922
1923         // and thaw the window
1924         GTKThawWidget(m_text);
1925     }
1926
1927     wxWindow::DoThaw();
1928 }
1929
1930 // ----------------------------------------------------------------------------
1931 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
1932 // ----------------------------------------------------------------------------
1933
1934 // FIXME: when dragging on a link the sample gets an "Unknown event".
1935 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
1936 // a buggy sample, or something else
1937 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
1938 {
1939     event.Skip();
1940     if( !HasFlag(wxTE_AUTO_URL) )
1941         return;
1942
1943     gint x, y;
1944     GtkTextIter start, end;
1945     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
1946                                                 "wxUrl");
1947
1948     gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
1949                                           event.GetX(), event.GetY(), &x, &y);
1950
1951     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
1952     if (!gtk_text_iter_has_tag(&end, tag))
1953     {
1954         SetCursor(wxCursor(wxCURSOR_IBEAM));
1955         return;
1956     }
1957
1958     SetCursor(wxCursor(wxCURSOR_HAND));
1959
1960     start = end;
1961     if(!gtk_text_iter_begins_tag(&start, tag))
1962         gtk_text_iter_backward_to_tag_toggle(&start, tag);
1963     if(!gtk_text_iter_ends_tag(&end, tag))
1964         gtk_text_iter_forward_to_tag_toggle(&end, tag);
1965
1966     // Native context menu is probably not desired on an URL.
1967     // Consider making this dependent on ProcessEvent(wxTextUrlEvent) return value
1968     if(event.GetEventType() == wxEVT_RIGHT_DOWN)
1969         event.Skip(false);
1970
1971     wxTextUrlEvent url_event(m_windowId, event,
1972                              gtk_text_iter_get_offset(&start),
1973                              gtk_text_iter_get_offset(&end));
1974
1975     InitCommandEvent(url_event);
1976     // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
1977     //event.Skip(!HandleWindowEvent(url_event));
1978     HandleWindowEvent(url_event);
1979 }
1980
1981 bool wxTextCtrl::GTKProcessEvent(wxEvent& event) const
1982 {
1983     bool rc = wxTextCtrlBase::GTKProcessEvent(event);
1984
1985     // GtkTextView starts a drag operation when left mouse button is pressed
1986     // and ends it when it is released and if it doesn't get the release event
1987     // the next click on a control results in an assertion failure inside
1988     // gtk_text_view_start_selection_drag() which simply *kills* the program
1989     // without anything we can do about it, so always let GTK+ have this event
1990     return rc && (IsSingleLine() || event.GetEventType() != wxEVT_LEFT_UP);
1991 }
1992
1993 // static
1994 wxVisualAttributes
1995 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1996 {
1997     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1998 }
1999
2000 #endif // wxUSE_TEXTCTRL