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 //  "mark_set"
 560 //-----------------------------------------------------------------------------
 561
 562 extern "C" {
 563 static void mark_set(GtkTextBuffer*, GtkTextIter*, GtkTextMark* mark, GSList** markList)
 564 {
 565     if (gtk_text_mark_get_name(mark) == NULL)
 566         *markList = g_slist_prepend(*markList, mark);
 567 }
 568 }
 569
 570 //-----------------------------------------------------------------------------
 571 //  wxTextCtrl
 572 //-----------------------------------------------------------------------------
 573
 574 BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase)
 575     EVT_CHAR(wxTextCtrl::OnChar)
 576
 577     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 578     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 579     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 580     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 581     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 582
 583     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 584     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 585     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 586     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 587     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 588
 589     // wxTE_AUTO_URL wxTextUrl support. Currently only creates
 590     // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
 591     EVT_MOTION      (wxTextCtrl::OnUrlMouseEvent)
 592     EVT_LEFT_DOWN   (wxTextCtrl::OnUrlMouseEvent)
 593     EVT_LEFT_UP     (wxTextCtrl::OnUrlMouseEvent)
 594     EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
 595     EVT_RIGHT_DOWN  (wxTextCtrl::OnUrlMouseEvent)
 596     EVT_RIGHT_UP    (wxTextCtrl::OnUrlMouseEvent)
 597     EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
 598 END_EVENT_TABLE()
 599
 600 void wxTextCtrl::Init()
 601 {
 602     m_dontMarkDirty =
 603     m_modified = false;
 604
 605     m_countUpdatesToIgnore = 0;
 606
 607     SetUpdateFont(false);
 608
 609     m_text = NULL;
 610     m_showPositionOnThaw = NULL;
 611     m_anonymousMarkList = NULL;
 612 }
 613
 614 wxTextCtrl::~wxTextCtrl()
 615 {
 616     // this is also done by wxWindowGTK dtor, but has to be done here so our
 617     // DoThaw() override is called
 618     while (IsFrozen())
 619         Thaw();
 620
 621     if (m_anonymousMarkList)
 622         g_slist_free(m_anonymousMarkList);
 623 }
 624
 625 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 626                         wxWindowID id,
 627                         const wxString &value,
 628                         const wxPoint &pos,
 629                         const wxSize &size,
 630                         long style,
 631                         const wxValidator& validator,
 632                         const wxString &name )
 633 {
 634     Init();
 635
 636     Create( parent, id, value, pos, size, style, validator, name );
 637 }
 638
 639 bool wxTextCtrl::Create( wxWindow *parent,
 640                          wxWindowID id,
 641                          const wxString &value,
 642                          const wxPoint &pos,
 643                          const wxSize &size,
 644                          long style,
 645                          const wxValidator& validator,
 646                          const wxString &name )
 647 {
 648     if (!PreCreation( parent, pos, size ) ||
 649         !CreateBase( parent, id, pos, size, style, validator, name ))
 650     {
 651         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 652         return false;
 653     }
 654
 655     bool multi_line = (style & wxTE_MULTILINE) != 0;
 656
 657     if (multi_line)
 658     {
 659         m_buffer = gtk_text_buffer_new(NULL);
 660         gulong sig_id = g_signal_connect(m_buffer, "mark_set", G_CALLBACK(mark_set), &m_anonymousMarkList);
 661         // Create view
 662         m_text = gtk_text_view_new_with_buffer(m_buffer);
 663         // gtk_text_view_set_buffer adds its own reference
 664         g_object_unref(m_buffer);
 665         g_signal_handler_disconnect(m_buffer, sig_id);
 666
 667         // create "ShowPosition" marker
 668         GtkTextIter iter;
 669         gtk_text_buffer_get_start_iter(m_buffer, &iter);
 670         gtk_text_buffer_create_mark(m_buffer, "ShowPosition", &iter, true);
 671
 672         // create scrolled window
 673         m_widget = gtk_scrolled_window_new( NULL, NULL );
 674         gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
 675                                         GTK_POLICY_AUTOMATIC,
 676                                         style & wxTE_NO_VSCROLL
 677                                             ? GTK_POLICY_NEVER
 678                                             : GTK_POLICY_AUTOMATIC );
 679         // for ScrollLines/Pages
 680         m_scrollBar[1] = GTK_RANGE(gtk_scrolled_window_get_vscrollbar(GTK_SCROLLED_WINDOW(m_widget)));
 681
 682         // Insert view into scrolled window
 683         gtk_container_add( GTK_CONTAINER(m_widget), m_text );
 684
 685         GTKSetWrapMode();
 686
 687         GTKScrolledWindowSetBorder(m_widget, style);
 688
 689         gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
 690
 691         gtk_widget_set_can_focus(m_widget, FALSE);
 692     }
 693     else
 694     {
 695         // a single-line text control: no need for scrollbars
 696         m_widget =
 697         m_text = gtk_entry_new();
 698         // work around probable bug in GTK+ 2.18 when calling WriteText on a
 699         // new, empty control, see http://trac.wxwidgets.org/ticket/11409
 700         gtk_entry_get_text((GtkEntry*)m_text);
 701
 702         if (style & wxNO_BORDER)
 703             g_object_set (m_text, "has-frame", FALSE, NULL);
 704
 705     }
 706     g_object_ref(m_widget);
 707
 708     m_parent->DoAddChild( this );
 709
 710     m_focusWidget = m_text;
 711
 712     PostCreation(size);
 713
 714     if (multi_line)
 715     {
 716         gtk_widget_show(m_text);
 717     }
 718
 719     // We want to be notified about text changes.
 720     if (multi_line)
 721     {
 722         g_signal_connect (m_buffer, "changed",
 723                           G_CALLBACK (gtk_text_changed_callback), this);
 724     }
 725     else
 726     {
 727         g_signal_connect (m_text, "changed",
 728                           G_CALLBACK (gtk_text_changed_callback), this);
 729     }
 730
 731     // Catch to disable focus out handling
 732     g_signal_connect (m_text, "populate_popup",
 733                       G_CALLBACK (gtk_textctrl_populate_popup),
 734                       this);
 735
 736     if (!value.empty())
 737     {
 738         SetValue( value );
 739     }
 740
 741     if (style & wxTE_PASSWORD)
 742         GTKSetVisibility();
 743
 744     if (style & wxTE_READONLY)
 745         GTKSetEditable();
 746
 747     // left justification (alignment) is the default anyhow
 748     if ( style & (wxTE_RIGHT | wxTE_CENTRE) )
 749         GTKSetJustification();
 750
 751     if (multi_line)
 752     {
 753         // Handle URLs on multi-line controls with wxTE_AUTO_URL style
 754         if (style & wxTE_AUTO_URL)
 755         {
 756             GtkTextIter start, end;
 757
 758             // We create our wxUrl tag here for slight efficiency gain - we
 759             // don't have to check for the tag existence in callbacks,
 760             // hereby it's guaranteed to exist.
 761             gtk_text_buffer_create_tag(m_buffer, "wxUrl",
 762                                        "foreground", "blue",
 763                                        "underline", PANGO_UNDERLINE_SINGLE,
 764                                        NULL);
 765
 766             // Check for URLs after each text change
 767             g_signal_connect_after (m_buffer, "insert_text",
 768                                     G_CALLBACK (au_insert_text_callback), this);
 769             g_signal_connect_after (m_buffer, "delete_range",
 770                                     G_CALLBACK (au_delete_range_callback), this);
 771
 772             // Block all wxUrl tag applying unless we do it ourselves, in which case we
 773             // block this callback temporarily. This takes care of gtk+ internal
 774             // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
 775             // which is undesired because only a part of the URL might be copied.
 776             // The insert-text signal emitted inside it will take care of newly formed
 777             // or wholly copied URLs.
 778             g_signal_connect (m_buffer, "apply_tag",
 779                               G_CALLBACK (au_apply_tag_callback), NULL);
 780
 781             // Check for URLs in the initial string passed to Create
 782             gtk_text_buffer_get_start_iter(m_buffer, &start);
 783             gtk_text_buffer_get_end_iter(m_buffer, &end);
 784             au_check_range(&start, &end);
 785         }
 786     }
 787     else // single line
 788     {
 789         // do the right thing with Enter presses depending on whether we have
 790         // wxTE_PROCESS_ENTER or not
 791         GTKSetActivatesDefault();
 792     }
 793
 794
 795     GTKConnectClipboardSignals(m_text);
 796
 797     m_cursor = wxCursor( wxCURSOR_IBEAM );
 798
 799     return true;
 800 }
 801
 802 GtkEditable *wxTextCtrl::GetEditable() const
 803 {
 804     wxCHECK_MSG( IsSingleLine(), NULL, "shouldn't be called for multiline" );
 805
 806     return GTK_EDITABLE(m_text);
 807 }
 808
 809 GtkEntry *wxTextCtrl::GetEntry() const
 810 {
 811     return GTK_ENTRY(m_text);
 812 }
 813
 814 // ----------------------------------------------------------------------------
 815 // flags handling
 816 // ----------------------------------------------------------------------------
 817
 818 void wxTextCtrl::GTKSetEditable()
 819 {
 820     gboolean editable = !HasFlag(wxTE_READONLY);
 821     if ( IsSingleLine() )
 822         gtk_editable_set_editable(GTK_EDITABLE(m_text), editable);
 823     else
 824         gtk_text_view_set_editable(GTK_TEXT_VIEW(m_text), editable);
 825 }
 826
 827 void wxTextCtrl::GTKSetVisibility()
 828 {
 829     wxCHECK_RET( IsSingleLine(),
 830                  "wxTE_PASSWORD is for single line text controls only" );
 831
 832     gtk_entry_set_visibility(GTK_ENTRY(m_text), !HasFlag(wxTE_PASSWORD));
 833 }
 834
 835 void wxTextCtrl::GTKSetActivatesDefault()
 836 {
 837     wxCHECK_RET( IsSingleLine(),
 838                  "wxTE_PROCESS_ENTER is for single line text controls only" );
 839
 840     gtk_entry_set_activates_default(GTK_ENTRY(m_text),
 841                                     !HasFlag(wxTE_PROCESS_ENTER));
 842 }
 843
 844 void wxTextCtrl::GTKSetWrapMode()
 845 {
 846     // no wrapping in single line controls
 847     if ( !IsMultiLine() )
 848         return;
 849
 850     // translate wx wrapping style to GTK+
 851     GtkWrapMode wrap;
 852     if ( HasFlag( wxTE_DONTWRAP ) )
 853         wrap = GTK_WRAP_NONE;
 854     else if ( HasFlag( wxTE_CHARWRAP ) )
 855         wrap = GTK_WRAP_CHAR;
 856     else if ( HasFlag( wxTE_WORDWRAP ) )
 857         wrap = GTK_WRAP_WORD;
 858     else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
 859         wrap = GTK_WRAP_WORD_CHAR;
 860
 861     gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
 862 }
 863
 864 void wxTextCtrl::GTKSetJustification()
 865 {
 866     if ( IsMultiLine() )
 867     {
 868         GtkJustification just;
 869         if ( HasFlag(wxTE_RIGHT) )
 870             just = GTK_JUSTIFY_RIGHT;
 871         else if ( HasFlag(wxTE_CENTRE) )
 872             just = GTK_JUSTIFY_CENTER;
 873         else // wxTE_LEFT == 0
 874             just = GTK_JUSTIFY_LEFT;
 875
 876         gtk_text_view_set_justification(GTK_TEXT_VIEW(m_text), just);
 877     }
 878     else // single line
 879     {
 880         gfloat align;
 881         if ( HasFlag(wxTE_RIGHT) )
 882             align = 1.0;
 883         else if ( HasFlag(wxTE_CENTRE) )
 884             align = 0.5;
 885         else // single line
 886             align = 0.0;
 887
 888         gtk_entry_set_alignment(GTK_ENTRY(m_text), align);
 889     }
 890 }
 891
 892 void wxTextCtrl::SetWindowStyleFlag(long style)
 893 {
 894     long styleOld = GetWindowStyleFlag();
 895
 896     wxTextCtrlBase::SetWindowStyleFlag(style);
 897
 898     if ( (style & wxTE_READONLY) != (styleOld & wxTE_READONLY) )
 899         GTKSetEditable();
 900
 901     if ( (style & wxTE_PASSWORD) != (styleOld & wxTE_PASSWORD) )
 902         GTKSetVisibility();
 903
 904     if ( (style & wxTE_PROCESS_ENTER) != (styleOld & wxTE_PROCESS_ENTER) )
 905         GTKSetActivatesDefault();
 906
 907     static const long flagsWrap = wxTE_WORDWRAP | wxTE_CHARWRAP | wxTE_DONTWRAP;
 908     if ( (style & flagsWrap) != (styleOld & flagsWrap) )
 909         GTKSetWrapMode();
 910
 911     static const long flagsAlign = wxTE_LEFT | wxTE_CENTRE | wxTE_RIGHT;
 912     if ( (style & flagsAlign) != (styleOld & flagsAlign) )
 913         GTKSetJustification();
 914 }
 915
 916 // ----------------------------------------------------------------------------
 917 // control value
 918 // ----------------------------------------------------------------------------
 919
 920 wxString wxTextCtrl::GetValue() const
 921 {
 922     wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
 923
 924     if ( IsMultiLine() )
 925     {
 926         GtkTextIter start;
 927         gtk_text_buffer_get_start_iter( m_buffer, &start );
 928         GtkTextIter end;
 929         gtk_text_buffer_get_end_iter( m_buffer, &end );
 930         wxGtkString text(gtk_text_buffer_get_text(m_buffer, &start, &end, true));
 931
 932         return wxGTK_CONV_BACK(text);
 933     }
 934     else // single line
 935     {
 936         return wxTextEntry::GetValue();
 937     }
 938 }
 939
 940 wxFontEncoding wxTextCtrl::GetTextEncoding() const
 941 {
 942     // GTK+ uses UTF-8 internally, we need to convert to it but from which
 943     // encoding?
 944
 945     // first check the default text style (we intentionally don't check the
 946     // style for the current position as it doesn't make sense for SetValue())
 947     const wxTextAttr& style = GetDefaultStyle();
 948     wxFontEncoding enc = style.HasFontEncoding() ? style.GetFontEncoding()
 949                                          : wxFONTENCODING_SYSTEM;
 950
 951     // fall back to the controls font if no style
 952     if ( enc == wxFONTENCODING_SYSTEM && m_hasFont )
 953         enc = GetFont().GetEncoding();
 954
 955     return enc;
 956 }
 957
 958 bool wxTextCtrl::IsEmpty() const
 959 {
 960     if ( IsMultiLine() )
 961         return gtk_text_buffer_get_char_count(m_buffer) == 0;
 962
 963     return wxTextEntry::IsEmpty();
 964 }
 965
 966 void wxTextCtrl::DoSetValue( const wxString &value, int flags )
 967 {
 968     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 969
 970     m_modified = false;
 971
 972     if ( !IsMultiLine() )
 973     {
 974         wxTextEntry::DoSetValue(value, flags);
 975         return;
 976     }
 977
 978     if (value.IsEmpty())
 979     {
 980         if ( !(flags & SetValue_SendEvent) )
 981             EnableTextChangedEvents(false);
 982
 983         gtk_text_buffer_set_text( m_buffer, "", 0 );
 984
 985         if ( !(flags & SetValue_SendEvent) )
 986             EnableTextChangedEvents(true);
 987
 988         return;
 989     }
 990
 991 #if wxUSE_UNICODE
 992     const wxCharBuffer buffer(value.utf8_str());
 993 #else
 994     wxFontEncoding enc = m_defaultStyle.HasFont()
 995                             ? m_defaultStyle.GetFont().GetEncoding()
 996                             : wxFONTENCODING_SYSTEM;
 997     if ( enc == wxFONTENCODING_SYSTEM )
 998         enc = GetTextEncoding();
 999
1000     const wxCharBuffer buffer(wxGTK_CONV_ENC(value, enc));
1001     if ( !buffer )
1002     {
1003         // see comment in WriteText() as to why we must warn the user about
1004         // this
1005         wxLogWarning(_("Failed to set text in the text control."));
1006         return;
1007     }
1008 #endif
1009
1010     if ( !(flags & SetValue_SendEvent) )
1011     {
1012         EnableTextChangedEvents(false);
1013     }
1014
1015     gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
1016
1017     if ( !m_defaultStyle.IsDefault() )
1018     {
1019         GtkTextIter start, end;
1020         gtk_text_buffer_get_bounds( m_buffer, &start, &end );
1021         wxGtkTextApplyTagsFromAttr(m_widget, m_buffer, m_defaultStyle,
1022                                    &start, &end);
1023     }
1024
1025     if ( !(flags & SetValue_SendEvent) )
1026     {
1027         EnableTextChangedEvents(true);
1028     }
1029 }
1030
1031 void wxTextCtrl::WriteText( const wxString &text )
1032 {
1033     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1034
1035     // we're changing the text programmatically
1036     DontMarkDirtyOnNextChange();
1037
1038     if ( !IsMultiLine() )
1039     {
1040         wxTextEntry::WriteText(text);
1041         return;
1042     }
1043
1044 #if wxUSE_UNICODE
1045     const wxCharBuffer buffer(text.utf8_str());
1046 #else
1047     // check if we have a specific style for the current position
1048     wxFontEncoding enc = wxFONTENCODING_SYSTEM;
1049     wxTextAttr style;
1050     if ( GetStyle(GetInsertionPoint(), style) && style.HasFontEncoding() )
1051     {
1052         enc = style.GetFontEncoding();
1053     }
1054
1055     if ( enc == wxFONTENCODING_SYSTEM )
1056         enc = GetTextEncoding();
1057
1058     const wxCharBuffer buffer(wxGTK_CONV_ENC(text, enc));
1059     if ( !buffer )
1060     {
1061         // we must log an error here as losing the text like this can be a
1062         // serious problem (e.g. imagine the document edited by user being
1063         // empty instead of containing the correct text)
1064         wxLogWarning(_("Failed to insert text in the control."));
1065         return;
1066     }
1067 #endif
1068
1069     // First remove the selection if there is one
1070     // TODO:  Is there an easier GTK specific way to do this?
1071     long from, to;
1072     GetSelection(&from, &to);
1073     if (from != to)
1074         Remove(from, to);
1075
1076     // Insert the text
1077     wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
1078
1079     // Scroll to cursor, but only if scrollbar thumb is at the very bottom
1080     // won't work when frozen, text view is not using m_buffer then
1081     if (!IsFrozen())
1082     {
1083         GtkAdjustment* adj = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
1084         const double value = gtk_adjustment_get_value(adj);
1085         const double upper = gtk_adjustment_get_upper(adj);
1086         const double page_size = gtk_adjustment_get_page_size(adj);
1087         if (wxIsSameDouble(value, upper - page_size))
1088         {
1089             gtk_text_view_scroll_to_mark(GTK_TEXT_VIEW(m_text),
1090                 gtk_text_buffer_get_insert(m_buffer), 0, false, 0, 1);
1091         }
1092     }
1093 }
1094
1095 wxString wxTextCtrl::GetLineText( long lineNo ) const
1096 {
1097     wxString result;
1098     if ( IsMultiLine() )
1099     {
1100         GtkTextIter line;
1101         gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1102
1103         GtkTextIter end = line;
1104         // avoid skipping to the next line end if this one is empty
1105         if ( !gtk_text_iter_ends_line(&line) )
1106             gtk_text_iter_forward_to_line_end(&end);
1107
1108         wxGtkString text(gtk_text_buffer_get_text(m_buffer, &line, &end, true));
1109         result = wxGTK_CONV_BACK(text);
1110     }
1111     else
1112     {
1113         if (lineNo == 0)
1114             result = GetValue();
1115     }
1116     return result;
1117 }
1118
1119 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1120 {
1121   /* If you implement this, don't forget to update the documentation!
1122    * (file docs/latex/wx/text.tex) */
1123     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1124 }
1125
1126 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1127 {
1128     if ( IsMultiLine() )
1129     {
1130         GtkTextIter iter;
1131
1132         if (pos > GetLastPosition())
1133             return false;
1134
1135         gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
1136
1137         if ( y )
1138             *y = gtk_text_iter_get_line(&iter);
1139         if ( x )
1140             *x = gtk_text_iter_get_line_offset(&iter);
1141     }
1142     else // single line control
1143     {
1144         if (pos <= gtk_entry_get_text_length(GTK_ENTRY(m_text)))
1145         {
1146             if ( y )
1147                 *y = 0;
1148             if ( x )
1149                 *x = pos;
1150         }
1151         else
1152         {
1153             // index out of bounds
1154             return false;
1155         }
1156     }
1157
1158     return true;
1159 }
1160
1161 long wxTextCtrl::XYToPosition(long x, long y ) const
1162 {
1163     if ( IsSingleLine() )
1164         return 0;
1165
1166     GtkTextIter iter;
1167     if (y >= gtk_text_buffer_get_line_count (m_buffer))
1168         return -1;
1169
1170     gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
1171     if (x >= gtk_text_iter_get_chars_in_line (&iter))
1172         return -1;
1173
1174     return gtk_text_iter_get_offset(&iter) + x;
1175 }
1176
1177 int wxTextCtrl::GetLineLength(long lineNo) const
1178 {
1179     if ( IsMultiLine() )
1180     {
1181         int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
1182         if (lineNo > last_line)
1183             return -1;
1184
1185         GtkTextIter iter;
1186         gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
1187         // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
1188         return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
1189     }
1190     else
1191     {
1192         wxString str = GetLineText (lineNo);
1193         return (int) str.length();
1194     }
1195 }
1196
1197 wxPoint wxTextCtrl::DoPositionToCoords(long pos) const
1198 {
1199     if ( !IsMultiLine() )
1200     {
1201         // Single line text entry (GtkTextEntry) doesn't have support for
1202         // getting the coordinates for the given offset. Perhaps we could
1203         // find them ourselves by using GetTextExtent() but for now just leave
1204         // it unimplemented, this function is more useful for multiline
1205         // controls anyhow.
1206         return wxDefaultPosition;
1207     }
1208
1209     // Window coordinates for the given position is calculated by getting
1210     // the buffer coordinates and converting them to window coordinates.
1211     GtkTextView *textview = GTK_TEXT_VIEW(m_text);
1212
1213     GtkTextIter iter;
1214     gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
1215
1216     GdkRectangle bufferCoords;
1217     gtk_text_view_get_iter_location(textview, &iter, &bufferCoords);
1218
1219     gint winCoordX = 0,
1220          winCoordY = 0;
1221     gtk_text_view_buffer_to_window_coords(textview, GTK_TEXT_WINDOW_WIDGET,
1222                                           bufferCoords.x, bufferCoords.y,
1223                                           &winCoordX, &winCoordY);
1224
1225     return wxPoint(winCoordX, winCoordY);
1226 }
1227
1228 int wxTextCtrl::GetNumberOfLines() const
1229 {
1230     if ( IsMultiLine() )
1231     {
1232         return gtk_text_buffer_get_line_count( m_buffer );
1233     }
1234     else // single line
1235     {
1236         return 1;
1237     }
1238 }
1239
1240 void wxTextCtrl::SetInsertionPoint( long pos )
1241 {
1242     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1243
1244     if ( IsMultiLine() )
1245     {
1246         GtkTextIter iter;
1247         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1248         gtk_text_buffer_place_cursor( m_buffer, &iter );
1249         GtkTextMark* mark = gtk_text_buffer_get_insert(m_buffer);
1250         if (IsFrozen())
1251             // defer until Thaw, text view is not using m_buffer now
1252             m_showPositionOnThaw = mark;
1253         else
1254             gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1255     }
1256     else // single line
1257     {
1258         wxTextEntry::SetInsertionPoint(pos);
1259     }
1260 }
1261
1262 void wxTextCtrl::SetEditable( bool editable )
1263 {
1264     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1265
1266     if ( IsMultiLine() )
1267     {
1268         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1269     }
1270     else // single line
1271     {
1272         wxTextEntry::SetEditable(editable);
1273     }
1274 }
1275
1276 bool wxTextCtrl::Enable( bool enable )
1277 {
1278     if (!wxWindowBase::Enable(enable))
1279     {
1280         // nothing to do
1281         return false;
1282     }
1283
1284     gtk_widget_set_sensitive( m_text, enable );
1285     SetCursor(enable ? wxCursor(wxCURSOR_IBEAM) : wxCursor());
1286
1287     return true;
1288 }
1289
1290 // wxGTK-specific: called recursively by Enable,
1291 // to give widgets an opportunity to correct their colours after they
1292 // have been changed by Enable
1293 void wxTextCtrl::OnEnabled(bool WXUNUSED(enable))
1294 {
1295     // If we have a custom background colour, we use this colour in both
1296     // disabled and enabled mode, or we end up with a different colour under the
1297     // text.
1298     wxColour oldColour = GetBackgroundColour();
1299     if (oldColour.IsOk())
1300     {
1301         // Need to set twice or it'll optimize the useful stuff out
1302         if (oldColour == * wxWHITE)
1303             SetBackgroundColour(*wxBLACK);
1304         else
1305             SetBackgroundColour(*wxWHITE);
1306         SetBackgroundColour(oldColour);
1307     }
1308 }
1309
1310 void wxTextCtrl::MarkDirty()
1311 {
1312     m_modified = true;
1313 }
1314
1315 void wxTextCtrl::DiscardEdits()
1316 {
1317     m_modified = false;
1318 }
1319
1320 // ----------------------------------------------------------------------------
1321 // event handling
1322 // ----------------------------------------------------------------------------
1323
1324 void wxTextCtrl::EnableTextChangedEvents(bool enable)
1325 {
1326     if ( enable )
1327     {
1328         g_signal_handlers_unblock_by_func(GetTextObject(),
1329             (gpointer)gtk_text_changed_callback, this);
1330     }
1331     else // disable events
1332     {
1333         g_signal_handlers_block_by_func(GetTextObject(),
1334             (gpointer)gtk_text_changed_callback, this);
1335     }
1336 }
1337
1338 bool wxTextCtrl::IgnoreTextUpdate()
1339 {
1340     if ( m_countUpdatesToIgnore > 0 )
1341     {
1342         m_countUpdatesToIgnore--;
1343
1344         return true;
1345     }
1346
1347     return false;
1348 }
1349
1350 bool wxTextCtrl::MarkDirtyOnChange()
1351 {
1352     if ( m_dontMarkDirty )
1353     {
1354         m_dontMarkDirty = false;
1355
1356         return false;
1357     }
1358
1359     return true;
1360 }
1361
1362 void wxTextCtrl::SetSelection( long from, long to )
1363 {
1364     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1365
1366     if ( IsMultiLine() )
1367     {
1368         if (from == -1 && to == -1)
1369         {
1370             from = 0;
1371             to = GetValue().length();
1372         }
1373
1374         GtkTextIter fromi, toi;
1375         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1376         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1377
1378         gtk_text_buffer_select_range( m_buffer, &fromi, &toi );
1379     }
1380     else // single line
1381     {
1382         wxTextEntry::SetSelection(from, to);
1383     }
1384 }
1385
1386 void wxTextCtrl::ShowPosition( long pos )
1387 {
1388     if (IsMultiLine())
1389     {
1390         GtkTextIter iter;
1391         gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, int(pos));
1392         GtkTextMark* mark = gtk_text_buffer_get_mark(m_buffer, "ShowPosition");
1393         gtk_text_buffer_move_mark(m_buffer, mark, &iter);
1394         if (IsFrozen())
1395             // defer until Thaw, text view is not using m_buffer now
1396             m_showPositionOnThaw = mark;
1397         else
1398             gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1399     }
1400 }
1401
1402 wxTextCtrlHitTestResult
1403 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1404 {
1405     if ( !IsMultiLine() )
1406     {
1407         // not supported
1408         return wxTE_HT_UNKNOWN;
1409     }
1410
1411     int x, y;
1412     gtk_text_view_window_to_buffer_coords
1413     (
1414         GTK_TEXT_VIEW(m_text),
1415         GTK_TEXT_WINDOW_TEXT,
1416         pt.x, pt.y,
1417         &x, &y
1418     );
1419
1420     GtkTextIter iter;
1421     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1422     if ( pos )
1423         *pos = gtk_text_iter_get_offset(&iter);
1424
1425     return wxTE_HT_ON_TEXT;
1426 }
1427
1428 long wxTextCtrl::GetInsertionPoint() const
1429 {
1430     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1431
1432     if ( IsMultiLine() )
1433     {
1434         // There is no direct accessor for the cursor, but
1435         // internally, the cursor is the "mark" called
1436         // "insert" in the text view's btree structure.
1437
1438         GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1439         GtkTextIter cursor;
1440         gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1441
1442         return gtk_text_iter_get_offset( &cursor );
1443     }
1444     else
1445     {
1446         return wxTextEntry::GetInsertionPoint();
1447     }
1448 }
1449
1450 wxTextPos wxTextCtrl::GetLastPosition() const
1451 {
1452     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1453
1454     int pos = 0;
1455
1456     if ( IsMultiLine() )
1457     {
1458         GtkTextIter end;
1459         gtk_text_buffer_get_end_iter( m_buffer, &end );
1460
1461         pos = gtk_text_iter_get_offset( &end );
1462     }
1463     else // single line
1464     {
1465         pos = wxTextEntry::GetLastPosition();
1466     }
1467
1468     return (long)pos;
1469 }
1470
1471 void wxTextCtrl::Remove( long from, long to )
1472 {
1473     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1474
1475     if ( IsMultiLine() )
1476     {
1477         GtkTextIter fromi, toi;
1478         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1479         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1480
1481         gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1482     }
1483     else // single line
1484     {
1485         wxTextEntry::Remove(from, to);
1486     }
1487 }
1488
1489 void wxTextCtrl::Cut()
1490 {
1491     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1492
1493     if ( IsMultiLine() )
1494         g_signal_emit_by_name (m_text, "cut-clipboard");
1495     else
1496         wxTextEntry::Cut();
1497 }
1498
1499 void wxTextCtrl::Copy()
1500 {
1501     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1502
1503     if ( IsMultiLine() )
1504         g_signal_emit_by_name (m_text, "copy-clipboard");
1505     else
1506         wxTextEntry::Copy();
1507 }
1508
1509 void wxTextCtrl::Paste()
1510 {
1511     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1512
1513     if ( IsMultiLine() )
1514         g_signal_emit_by_name (m_text, "paste-clipboard");
1515     else
1516         wxTextEntry::Paste();
1517 }
1518
1519 // If the return values from and to are the same, there is no
1520 // selection.
1521 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1522 {
1523     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1524
1525     if ( !IsMultiLine() )
1526     {
1527         wxTextEntry::GetSelection(fromOut, toOut);
1528         return;
1529     }
1530
1531     gint from, to;
1532
1533     GtkTextIter ifrom, ito;
1534     if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1535     {
1536         from = gtk_text_iter_get_offset(&ifrom);
1537         to = gtk_text_iter_get_offset(&ito);
1538
1539         if ( from > to )
1540         {
1541             // exchange them to be compatible with wxMSW
1542             gint tmp = from;
1543             from = to;
1544             to = tmp;
1545         }
1546     }
1547     else // no selection
1548     {
1549         from =
1550         to = GetInsertionPoint();
1551     }
1552
1553     if ( fromOut )
1554         *fromOut = from;
1555     if ( toOut )
1556         *toOut = to;
1557 }
1558
1559
1560 bool wxTextCtrl::IsEditable() const
1561 {
1562     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1563
1564     if ( IsMultiLine() )
1565     {
1566         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text)) != 0;
1567     }
1568     else
1569     {
1570         return wxTextEntry::IsEditable();
1571     }
1572 }
1573
1574 bool wxTextCtrl::IsModified() const
1575 {
1576     return m_modified;
1577 }
1578
1579 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1580 {
1581     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1582
1583     if ( key_event.GetKeyCode() == WXK_RETURN )
1584     {
1585         if ( HasFlag(wxTE_PROCESS_ENTER) )
1586         {
1587             wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1588             event.SetEventObject(this);
1589             event.SetString(GetValue());
1590             if ( HandleWindowEvent(event) )
1591                 return;
1592         }
1593     }
1594
1595     key_event.Skip();
1596 }
1597
1598 GtkWidget* wxTextCtrl::GetConnectWidget()
1599 {
1600     return GTK_WIDGET(m_text);
1601 }
1602
1603 GdkWindow *wxTextCtrl::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
1604 {
1605     if ( IsMultiLine() )
1606     {
1607         return gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1608                                         GTK_TEXT_WINDOW_TEXT );
1609     }
1610     else
1611     {
1612 #ifdef __WXGTK3__
1613         // no access to internal GdkWindows
1614         return NULL;
1615 #else
1616         return gtk_entry_get_text_window(GTK_ENTRY(m_text));
1617 #endif
1618     }
1619 }
1620
1621 // the font will change for subsequent text insertiongs
1622 bool wxTextCtrl::SetFont( const wxFont &font )
1623 {
1624     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1625
1626     if ( !wxTextCtrlBase::SetFont(font) )
1627     {
1628         // font didn't change, nothing to do
1629         return false;
1630     }
1631
1632     if ( IsMultiLine() )
1633     {
1634         SetUpdateFont(true);
1635
1636         m_defaultStyle.SetFont(font);
1637
1638         ChangeFontGlobally();
1639     }
1640
1641     return true;
1642 }
1643
1644 void wxTextCtrl::ChangeFontGlobally()
1645 {
1646     // this method is very inefficient and hence should be called as rarely as
1647     // possible!
1648     //
1649     // TODO: it can be implemented much more efficiently for GTK2
1650     wxASSERT_MSG( IsMultiLine(),
1651                   wxT("shouldn't be called for single line controls") );
1652
1653     wxString value = GetValue();
1654     if ( !value.empty() )
1655     {
1656         SetUpdateFont(false);
1657
1658         Clear();
1659         AppendText(value);
1660     }
1661 }
1662
1663 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1664 {
1665     if ( !wxControl::SetForegroundColour(colour) )
1666         return false;
1667
1668     // update default fg colour too
1669     m_defaultStyle.SetTextColour(colour);
1670
1671     return true;
1672 }
1673
1674 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1675 {
1676     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1677
1678     if ( !wxControl::SetBackgroundColour( colour ) )
1679         return false;
1680
1681     if (!m_backgroundColour.IsOk())
1682         return false;
1683
1684     // change active background color too
1685     m_defaultStyle.SetBackgroundColour( colour );
1686
1687     return true;
1688 }
1689
1690 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1691 {
1692     if ( IsMultiLine() )
1693     {
1694         if ( style.IsDefault() )
1695         {
1696             // nothing to do
1697             return true;
1698         }
1699
1700         gint l = gtk_text_buffer_get_char_count( m_buffer );
1701
1702         wxCHECK_MSG( start >= 0 && end <= l, false,
1703                      wxT("invalid range in wxTextCtrl::SetStyle") );
1704
1705         GtkTextIter starti, endi;
1706         gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1707         gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1708
1709         wxGtkTextApplyTagsFromAttr( m_widget, m_buffer, style, &starti, &endi );
1710
1711         return true;
1712     }
1713     //else: single line text controls don't support styles
1714
1715     return false;
1716 }
1717
1718 bool wxTextCtrl::GetStyle(long position, wxTextAttr& style)
1719 {
1720     if ( !IsMultiLine() )
1721     {
1722         // no styles for GtkEntry
1723         return false;
1724     }
1725
1726     gint l = gtk_text_buffer_get_char_count( m_buffer );
1727
1728     wxCHECK_MSG( position >= 0 && position <= l, false,
1729                  wxT("invalid range in wxTextCtrl::GetStyle") );
1730
1731     GtkTextIter positioni;
1732     gtk_text_buffer_get_iter_at_offset(m_buffer, &positioni, position);
1733
1734     // Obtain a copy of the default attributes
1735     GtkTextAttributes * const
1736         pattr = gtk_text_view_get_default_attributes(GTK_TEXT_VIEW(m_text));
1737     wxON_BLOCK_EXIT1(gtk_text_attributes_unref, pattr);
1738
1739     // And query GTK for the attributes at the given position using it as base
1740     if ( !gtk_text_iter_get_attributes(&positioni, pattr) )
1741     {
1742         style = m_defaultStyle;
1743     }
1744     else // have custom attributes
1745     {
1746         style.SetBackgroundColour(pattr->appearance.bg_color);
1747         style.SetTextColour(pattr->appearance.fg_color);
1748
1749         const wxGtkString
1750             pangoFontString(pango_font_description_to_string(pattr->font));
1751
1752         wxFont font;
1753         if ( font.SetNativeFontInfo(wxString(pangoFontString)) )
1754             style.SetFont(font);
1755
1756         // TODO: set alignment, tabs and indents
1757     }
1758
1759     return true;
1760 }
1761
1762 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1763 {
1764     GTKApplyStyle(m_text, style);
1765 }
1766
1767 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1768 {
1769     Cut();
1770 }
1771
1772 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1773 {
1774     Copy();
1775 }
1776
1777 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1778 {
1779     Paste();
1780 }
1781
1782 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1783 {
1784     Undo();
1785 }
1786
1787 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1788 {
1789     Redo();
1790 }
1791
1792 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1793 {
1794     event.Enable( CanCut() );
1795 }
1796
1797 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1798 {
1799     event.Enable( CanCopy() );
1800 }
1801
1802 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1803 {
1804     event.Enable( CanPaste() );
1805 }
1806
1807 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1808 {
1809     event.Enable( CanUndo() );
1810 }
1811
1812 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1813 {
1814     event.Enable( CanRedo() );
1815 }
1816
1817 wxSize wxTextCtrl::DoGetBestSize() const
1818 {
1819     // FIXME should be different for multi-line controls...
1820     wxSize ret( wxControl::DoGetBestSize() );
1821     wxSize best(80, ret.y);
1822     CacheBestSize(best);
1823     return best;
1824 }
1825
1826 // ----------------------------------------------------------------------------
1827 // freeze/thaw
1828 // ----------------------------------------------------------------------------
1829
1830 void wxTextCtrl::DoFreeze()
1831 {
1832     wxCHECK_RET(m_text != NULL, wxT("invalid text ctrl"));
1833
1834     GTKFreezeWidget(m_text);
1835
1836     if ( HasFlag(wxTE_MULTILINE) )
1837     {
1838         // removing buffer dramatically speeds up insertion:
1839         g_object_ref(m_buffer);
1840         GtkTextBuffer* buf_new = gtk_text_buffer_new(NULL);
1841         gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), buf_new);
1842         // gtk_text_view_set_buffer adds its own reference
1843         g_object_unref(buf_new);
1844         // These marks should be deleted when the buffer is changed,
1845         // but they are not (in GTK+ up to at least 3.0.1).
1846         // Otherwise these anonymous marks start to build up in the buffer,
1847         // and Freeze takes longer and longer each time it is called.
1848         if (m_anonymousMarkList)
1849         {
1850             for (GSList* item = m_anonymousMarkList; item; item = item->next)
1851             {
1852                 GtkTextMark* mark = static_cast<GtkTextMark*>(item->data);
1853                 if (GTK_IS_TEXT_MARK(mark) && !gtk_text_mark_get_deleted(mark))
1854                     gtk_text_buffer_delete_mark(m_buffer, mark);
1855             }
1856             g_slist_free(m_anonymousMarkList);
1857             m_anonymousMarkList = NULL;
1858         }
1859     }
1860 }
1861
1862 void wxTextCtrl::DoThaw()
1863 {
1864     if ( HasFlag(wxTE_MULTILINE) )
1865     {
1866         // reattach buffer:
1867         gulong sig_id = g_signal_connect(m_buffer, "mark_set", G_CALLBACK(mark_set), &m_anonymousMarkList);
1868         gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1869         g_object_unref(m_buffer);
1870         g_signal_handler_disconnect(m_buffer, sig_id);
1871
1872         if (m_showPositionOnThaw != NULL)
1873         {
1874             gtk_text_view_scroll_mark_onscreen(
1875                 GTK_TEXT_VIEW(m_text), m_showPositionOnThaw);
1876             m_showPositionOnThaw = NULL;
1877         }
1878     }
1879
1880     GTKThawWidget(m_text);
1881 }
1882
1883 // ----------------------------------------------------------------------------
1884 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
1885 // ----------------------------------------------------------------------------
1886
1887 // FIXME: when dragging on a link the sample gets an "Unknown event".
1888 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
1889 // a buggy sample, or something else
1890 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
1891 {
1892     event.Skip();
1893     if( !HasFlag(wxTE_AUTO_URL) )
1894         return;
1895
1896     gint x, y;
1897     GtkTextIter start, end;
1898     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
1899                                                 "wxUrl");
1900
1901     gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
1902                                           event.GetX(), event.GetY(), &x, &y);
1903
1904     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
1905     if (!gtk_text_iter_has_tag(&end, tag))
1906     {
1907         SetCursor(wxCursor(wxCURSOR_IBEAM));
1908         return;
1909     }
1910
1911     SetCursor(wxCursor(wxCURSOR_HAND));
1912
1913     start = end;
1914     if(!gtk_text_iter_begins_tag(&start, tag))
1915         gtk_text_iter_backward_to_tag_toggle(&start, tag);
1916     if(!gtk_text_iter_ends_tag(&end, tag))
1917         gtk_text_iter_forward_to_tag_toggle(&end, tag);
1918
1919     // Native context menu is probably not desired on an URL.
1920     // Consider making this dependent on ProcessEvent(wxTextUrlEvent) return value
1921     if(event.GetEventType() == wxEVT_RIGHT_DOWN)
1922         event.Skip(false);
1923
1924     wxTextUrlEvent url_event(m_windowId, event,
1925                              gtk_text_iter_get_offset(&start),
1926                              gtk_text_iter_get_offset(&end));
1927
1928     InitCommandEvent(url_event);
1929     // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
1930     //event.Skip(!HandleWindowEvent(url_event));
1931     HandleWindowEvent(url_event);
1932 }
1933
1934 bool wxTextCtrl::GTKProcessEvent(wxEvent& event) const
1935 {
1936     bool rc = wxTextCtrlBase::GTKProcessEvent(event);
1937
1938     // GtkTextView starts a drag operation when left mouse button is pressed
1939     // and ends it when it is released and if it doesn't get the release event
1940     // the next click on a control results in an assertion failure inside
1941     // gtk_text_view_start_selection_drag() which simply *kills* the program
1942     // without anything we can do about it, so always let GTK+ have this event
1943     return rc && (IsSingleLine() || event.GetEventType() != wxEVT_LEFT_UP);
1944 }
1945
1946 // static
1947 wxVisualAttributes
1948 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1949 {
1950     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1951 }
1952
1953 #endif // wxUSE_TEXTCTRL