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