src/gtk/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/textctrl.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin, 2005 Mart Raudsepp
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #include "wx/textctrl.h"
  14
  15 #ifndef WX_PRECOMP
  16     #include "wx/intl.h"
  17     #include "wx/log.h"
  18     #include "wx/utils.h"
  19     #include "wx/panel.h"
  20 #endif
  21
  22 #include "wx/math.h"
  23 #include "wx/settings.h"
  24 #include "wx/strconv.h"
  25 #include "wx/fontutil.h"        // for wxNativeFontInfo (GetNativeFontInfo())
  26
  27 #include <sys/types.h>
  28 #include <sys/stat.h>
  29 #include <ctype.h>
  30 #include "wx/math.h"
  31
  32 #include "wx/gtk/private.h"
  33 #include <gdk/gdkkeysyms.h>
  34
  35 //-----------------------------------------------------------------------------
  36 // data
  37 //-----------------------------------------------------------------------------
  38
  39 extern wxWindowGTK *g_delayedFocus;
  40
  41 // ----------------------------------------------------------------------------
  42 // helpers
  43 // ----------------------------------------------------------------------------
  44
  45 extern "C" {
  46 static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
  47                              GtkTextTag *tag,
  48                              GtkTextIter *start,
  49                              GtkTextIter *end,
  50                              char *prefix)
  51 {
  52     gchar *name;
  53     g_object_get (tag, "name", &name, NULL);
  54
  55     if (!name || strncmp(name, prefix, strlen(prefix)))
  56         // anonymous tag or not starting with prefix - don't remove
  57         g_signal_stop_emission_by_name (buffer, "remove_tag");
  58
  59     g_free(name);
  60 }
  61 }
  62
  63 extern "C" {
  64 static void wxGtkTextApplyTagsFromAttr(GtkTextBuffer *text_buffer,
  65                                        const wxTextAttr& attr,
  66                                        GtkTextIter *start,
  67                                        GtkTextIter *end)
  68 {
  69     static gchar buf[1024];
  70     GtkTextTag *tag;
  71
  72     gulong remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
  73             G_CALLBACK (wxGtkOnRemoveTag), gpointer("WX"));
  74     gtk_text_buffer_remove_all_tags(text_buffer, start, end);
  75     g_signal_handler_disconnect (text_buffer, remove_handler_id);
  76
  77     if (attr.HasFont())
  78     {
  79         char *font_string;
  80         PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
  81         font_string = pango_font_description_to_string(font_description);
  82         g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string);
  83         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
  84                                          buf );
  85         if (!tag)
  86             tag = gtk_text_buffer_create_tag( text_buffer, buf,
  87                                               "font-desc", font_description,
  88                                               NULL );
  89         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
  90         g_free (font_string);
  91
  92         if (attr.GetFont().GetUnderlined())
  93         {
  94             g_snprintf(buf, sizeof(buf), "WXFONTUNDERLINE");
  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                                                   "underline-set", TRUE,
 100                                                   "underline", PANGO_UNDERLINE_SINGLE,
 101                                                   NULL );
 102             gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 103         }
 104     }
 105
 106     if (attr.HasTextColour())
 107     {
 108         GdkColor *colFg = attr.GetTextColour().GetColor();
 109         g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
 110                    colFg->red, colFg->green, colFg->blue);
 111         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 112                                          buf );
 113         if (!tag)
 114             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 115                                               "foreground-gdk", colFg, NULL );
 116         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 117     }
 118
 119     if (attr.HasBackgroundColour())
 120     {
 121         GdkColor *colBg = attr.GetBackgroundColour().GetColor();
 122         g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
 123                    colBg->red, colBg->green, colBg->blue);
 124         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 125                                          buf );
 126         if (!tag)
 127             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 128                                               "background-gdk", colBg, NULL );
 129         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 130     }
 131
 132     if (attr.HasAlignment())
 133     {
 134         GtkTextIter para_start, para_end = *end;
 135         gtk_text_buffer_get_iter_at_line( text_buffer,
 136                                           &para_start,
 137                                           gtk_text_iter_get_line(start) );
 138         gtk_text_iter_forward_line(&para_end);
 139
 140         remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
 141                                               G_CALLBACK(wxGtkOnRemoveTag),
 142                                               gpointer("WXALIGNMENT"));
 143         gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
 144         g_signal_handler_disconnect (text_buffer, remove_handler_id);
 145
 146         GtkJustification align;
 147         switch (attr.GetAlignment())
 148         {
 149             default:
 150                 align = GTK_JUSTIFY_LEFT;
 151                 break;
 152             case wxTEXT_ALIGNMENT_RIGHT:
 153                 align = GTK_JUSTIFY_RIGHT;
 154                 break;
 155             case wxTEXT_ALIGNMENT_CENTER:
 156                 align = GTK_JUSTIFY_CENTER;
 157                 break;
 158             // gtk+ doesn't support justify as of gtk+-2.7.4
 159         }
 160
 161         g_snprintf(buf, sizeof(buf), "WXALIGNMENT %d", align);
 162         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 163                                          buf );
 164         if (!tag)
 165             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 166                                               "justification", align, NULL );
 167         gtk_text_buffer_apply_tag( text_buffer, tag, &para_start, &para_end );
 168     }
 169 }
 170 }
 171
 172 extern "C" {
 173 static void wxGtkTextInsert(GtkWidget *text,
 174                             GtkTextBuffer *text_buffer,
 175                             const wxTextAttr& attr,
 176                             const wxCharBuffer& buffer)
 177
 178 {
 179     gint start_offset;
 180     GtkTextIter iter, start;
 181
 182     gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
 183                                      gtk_text_buffer_get_insert (text_buffer) );
 184     start_offset = gtk_text_iter_get_offset (&iter);
 185     gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
 186
 187     gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
 188
 189     wxGtkTextApplyTagsFromAttr(text_buffer, attr, &start, &iter);
 190 }
 191 }
 192
 193 // ----------------------------------------------------------------------------
 194 // "insert_text" for GtkEntry
 195 // ----------------------------------------------------------------------------
 196
 197 extern "C" {
 198 static void
 199 gtk_insert_text_callback(GtkEditable *editable,
 200                          const gchar *new_text,
 201                          gint new_text_length,
 202                          gint *position,
 203                          wxTextCtrl *win)
 204 {
 205     if (g_isIdle)
 206         wxapp_install_idle_handler();
 207
 208     // we should only be called if we have a max len limit at all
 209     GtkEntry *entry = GTK_ENTRY (editable);
 210
 211     wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
 212
 213     // check that we don't overflow the max length limit
 214     //
 215     // FIXME: this doesn't work when we paste a string which is going to be
 216     //        truncated
 217     if ( entry->text_length == entry->text_max_length )
 218     {
 219         // we don't need to run the base class version at all
 220         g_signal_stop_emission_by_name (editable, "insert_text");
 221
 222         // remember that the next changed signal is to be ignored to avoid
 223         // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
 224         win->IgnoreNextTextUpdate();
 225
 226         // and generate the correct one ourselves
 227         wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
 228         event.SetEventObject(win);
 229         event.SetString(win->GetValue());
 230         win->GetEventHandler()->ProcessEvent( event );
 231     }
 232 }
 233 }
 234
 235 // Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
 236
 237 extern "C" {
 238 static void
 239 au_apply_tag_callback(GtkTextBuffer *buffer,
 240                       GtkTextTag *tag,
 241                       GtkTextIter *start,
 242                       GtkTextIter *end,
 243                       gpointer textctrl)
 244 {
 245     if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
 246         g_signal_stop_emission_by_name (buffer, "apply_tag");
 247 }
 248 }
 249
 250 //-----------------------------------------------------------------------------
 251 //  GtkTextCharPredicates for gtk_text_iter_*_find_char
 252 //-----------------------------------------------------------------------------
 253
 254 extern "C" {
 255 static gboolean
 256 pred_whitespace (gunichar ch, gpointer user_data)
 257 {
 258     return g_unichar_isspace(ch);
 259 }
 260 }
 261
 262 extern "C" {
 263 static gboolean
 264 pred_non_whitespace (gunichar ch, gpointer user_data)
 265 {
 266     return !g_unichar_isspace(ch);
 267 }
 268 }
 269
 270 extern "C" {
 271 static gboolean
 272 pred_nonpunct (gunichar ch, gpointer user_data)
 273 {
 274     return !g_unichar_ispunct(ch);
 275 }
 276 }
 277
 278 extern "C" {
 279 static gboolean
 280 pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
 281 {
 282     return !g_unichar_ispunct(ch) || ch == '/';
 283 }
 284 }
 285
 286 //-----------------------------------------------------------------------------
 287 //  Check for links between s and e and correct tags as necessary
 288 //-----------------------------------------------------------------------------
 289
 290 // This function should be made match better while being efficient at one point.
 291 // Most probably with a row of regular expressions.
 292 extern "C" {
 293 static void
 294 au_check_word( GtkTextIter *s, GtkTextIter *e )
 295 {
 296     static const char *URIPrefixes[] =
 297     {
 298         "http://",
 299         "ftp://",
 300         "www.",
 301         "ftp.",
 302         "mailto://",
 303         "https://",
 304         "file://",
 305         "nntp://",
 306         "news://",
 307         "telnet://",
 308         "mms://",
 309         "gopher://",
 310         "prospero://",
 311         "wais://",
 312     };
 313
 314     GtkTextIter start = *s, end = *e;
 315     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 316
 317     // Get our special link tag
 318     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 319
 320     // Get rid of punctuation from beginning and end.
 321     // Might want to move this to au_check_range if an improved link checking doesn't
 322     // use some intelligent punctuation checking itself (beware of undesired iter modifications).
 323     if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
 324         gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
 325
 326     gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
 327     gtk_text_iter_forward_char(&end);
 328
 329     gchar* text = gtk_text_iter_get_text( &start, &end );
 330     size_t len = strlen(text), prefix_len;
 331     size_t n;
 332
 333     for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
 334     {
 335         prefix_len = strlen(URIPrefixes[n]);
 336         if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
 337             break;
 338     }
 339
 340     if(n < WXSIZEOF(URIPrefixes))
 341     {
 342         gulong signal_id = g_signal_handler_find (buffer,
 343                                                   (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
 344                                                   0, 0, NULL,
 345                                                   (gpointer)au_apply_tag_callback, NULL);
 346
 347         g_signal_handler_block (buffer, signal_id);
 348         gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
 349         g_signal_handler_unblock (buffer, signal_id);
 350     }
 351 }
 352 }
 353
 354 extern "C" {
 355 static void
 356 au_check_range(GtkTextIter *s,
 357                GtkTextIter *range_end)
 358 {
 359     GtkTextIter range_start = *s;
 360     GtkTextIter word_end;
 361     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 362     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 363
 364     gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
 365
 366     if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
 367         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 368
 369     while(!gtk_text_iter_equal(&range_start, range_end))
 370     {
 371         word_end = range_start;
 372         gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
 373
 374         // Now we should have a word delimited by range_start and word_end, correct link tags
 375         au_check_word(&range_start, &word_end);
 376
 377         range_start = word_end;
 378         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 379     }
 380 }
 381 }
 382
 383 //-----------------------------------------------------------------------------
 384 //  "insert-text" for GtkTextBuffer
 385 //-----------------------------------------------------------------------------
 386
 387 extern "C" {
 388 static void
 389 au_insert_text_callback(GtkTextBuffer *buffer,
 390                         GtkTextIter *end,
 391                         gchar *text,
 392                         gint len,
 393                         wxTextCtrl *win)
 394 {
 395     if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 396         return;
 397
 398     GtkTextIter start = *end;
 399     gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
 400
 401     GtkTextIter line_start = start;
 402     GtkTextIter line_end = *end;
 403     GtkTextIter words_start = start;
 404     GtkTextIter words_end = *end;
 405
 406     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
 407     gtk_text_iter_forward_to_line_end(&line_end);
 408     gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
 409     gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
 410
 411     au_check_range(&words_start, &words_end);
 412 }
 413 }
 414
 415 //-----------------------------------------------------------------------------
 416 //  "delete-range" for GtkTextBuffer
 417 //-----------------------------------------------------------------------------
 418
 419 extern "C" {
 420 static void
 421 au_delete_range_callback(GtkTextBuffer *buffer,
 422                          GtkTextIter *start,
 423                          GtkTextIter *end,
 424                          wxTextCtrl *win)
 425 {
 426     if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 427         return;
 428
 429     GtkTextIter line_start = *start, line_end = *end;
 430
 431     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
 432     gtk_text_iter_forward_to_line_end(&line_end);
 433     gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
 434     gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
 435
 436     au_check_range(start, end);
 437 }
 438 }
 439
 440
 441 //-----------------------------------------------------------------------------
 442 //  "changed"
 443 //-----------------------------------------------------------------------------
 444
 445 extern "C" {
 446 static void
 447 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
 448 {
 449     if ( win->IgnoreTextUpdate() )
 450         return;
 451
 452     if (!win->m_hasVMT) return;
 453
 454     if (g_isIdle)
 455         wxapp_install_idle_handler();
 456
 457     if ( win->MarkDirtyOnChange() )
 458         win->MarkDirty();
 459
 460     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
 461     event.SetEventObject( win );
 462     win->GetEventHandler()->ProcessEvent( event );
 463 }
 464 }
 465
 466 //-----------------------------------------------------------------------------
 467 //  clipboard events: "copy-clipboard", "cut-clipboard", "paste-clipboard"
 468 //-----------------------------------------------------------------------------
 469
 470 // common part of the event handlers below
 471 static void
 472 handle_text_clipboard_callback( GtkWidget *widget, wxTextCtrl *win,
 473                                                                 wxEventType eventType, const gchar * signal_name)
 474 {
 475     wxClipboardTextEvent event( eventType, win->GetId() );
 476     event.SetEventObject( win );
 477     if ( win->GetEventHandler()->ProcessEvent( event ) )
 478     {
 479         // don't let the default processing to take place if we did something
 480         // ourselves in the event handler
 481         g_signal_stop_emission_by_name (widget, signal_name);
 482     }
 483 }
 484
 485 extern "C" {
 486 static void
 487 gtk_copy_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 488 {
 489         handle_text_clipboard_callback(
 490                 widget, win, wxEVT_COMMAND_TEXT_COPY, "copy-clipboard" );
 491 }
 492
 493 static void
 494 gtk_cut_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 495 {
 496         handle_text_clipboard_callback(
 497                 widget, win, wxEVT_COMMAND_TEXT_CUT, "cut-clipboard" );
 498 }
 499
 500 static void
 501 gtk_paste_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 502 {
 503         handle_text_clipboard_callback(
 504                 widget, win, wxEVT_COMMAND_TEXT_PASTE, "paste-clipboard" );
 505 }
 506 }
 507
 508 //-----------------------------------------------------------------------------
 509 // "expose_event" from scrolled window and textview
 510 //-----------------------------------------------------------------------------
 511
 512 extern "C" {
 513 static gboolean
 514 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
 515 {
 516     return TRUE;
 517 }
 518 }
 519
 520
 521 //-----------------------------------------------------------------------------
 522 //  wxTextCtrl
 523 //-----------------------------------------------------------------------------
 524
 525 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
 526
 527 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 528     EVT_CHAR(wxTextCtrl::OnChar)
 529
 530     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 531     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 532     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 533     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 534     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 535
 536     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 537     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 538     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 539     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 540     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 541
 542     // wxTE_AUTO_URL wxTextUrl support. Currently only creates
 543     // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
 544     EVT_MOTION      (wxTextCtrl::OnUrlMouseEvent)
 545     EVT_LEFT_DOWN   (wxTextCtrl::OnUrlMouseEvent)
 546     EVT_LEFT_UP     (wxTextCtrl::OnUrlMouseEvent)
 547     EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
 548     EVT_RIGHT_DOWN  (wxTextCtrl::OnUrlMouseEvent)
 549     EVT_RIGHT_UP    (wxTextCtrl::OnUrlMouseEvent)
 550     EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
 551 END_EVENT_TABLE()
 552
 553 void wxTextCtrl::Init()
 554 {
 555     m_dontMarkDirty =
 556     m_ignoreNextUpdate =
 557     m_modified = false;
 558
 559     SetUpdateFont(false);
 560
 561     m_text = NULL;
 562     m_frozenness = 0;
 563     m_gdkHandCursor = NULL;
 564     m_gdkXTermCursor = NULL;
 565 }
 566
 567 wxTextCtrl::~wxTextCtrl()
 568 {
 569     if(m_gdkHandCursor)
 570         gdk_cursor_unref(m_gdkHandCursor);
 571     if(m_gdkXTermCursor)
 572         gdk_cursor_unref(m_gdkXTermCursor);
 573 }
 574
 575 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 576                         wxWindowID id,
 577                         const wxString &value,
 578                         const wxPoint &pos,
 579                         const wxSize &size,
 580                         long style,
 581                         const wxValidator& validator,
 582                         const wxString &name )
 583 {
 584     Init();
 585
 586     Create( parent, id, value, pos, size, style, validator, name );
 587 }
 588
 589 bool wxTextCtrl::Create( wxWindow *parent,
 590                          wxWindowID id,
 591                          const wxString &value,
 592                          const wxPoint &pos,
 593                          const wxSize &size,
 594                          long style,
 595                          const wxValidator& validator,
 596                          const wxString &name )
 597 {
 598     m_needParent = true;
 599     m_acceptsFocus = true;
 600
 601     if (!PreCreation( parent, pos, size ) ||
 602         !CreateBase( parent, id, pos, size, style, validator, name ))
 603     {
 604         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 605         return false;
 606     }
 607
 608     bool multi_line = (style & wxTE_MULTILINE) != 0;
 609
 610     if (multi_line)
 611     {
 612         // Create view
 613         m_text = gtk_text_view_new();
 614
 615         m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 616
 617         // create scrolled window
 618         m_widget = gtk_scrolled_window_new( NULL, NULL );
 619         gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
 620                                         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 621
 622         // Insert view into scrolled window
 623         gtk_container_add( GTK_CONTAINER(m_widget), m_text );
 624
 625         // translate wx wrapping style to GTK+
 626         GtkWrapMode wrap;
 627         if ( HasFlag( wxTE_DONTWRAP ) )
 628             wrap = GTK_WRAP_NONE;
 629         else if ( HasFlag( wxTE_CHARWRAP ) )
 630             wrap = GTK_WRAP_CHAR;
 631         else if ( HasFlag( wxTE_WORDWRAP ) )
 632             wrap = GTK_WRAP_WORD;
 633         else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
 634         {
 635             // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
 636 #ifdef __WXGTK24__
 637             if ( !gtk_check_version(2,4,0) )
 638             {
 639                 wrap = GTK_WRAP_WORD_CHAR;
 640             }
 641             else
 642 #endif
 643             wrap = GTK_WRAP_WORD;
 644         }
 645
 646         gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
 647
 648         GtkScrolledWindowSetBorder(m_widget, style);
 649
 650         gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
 651
 652         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 653     }
 654     else
 655     {
 656         // a single-line text control: no need for scrollbars
 657         m_widget =
 658         m_text = gtk_entry_new();
 659
 660         if (style & wxNO_BORDER)
 661             g_object_set (m_text, "has-frame", FALSE, NULL);
 662     }
 663
 664     m_parent->DoAddChild( this );
 665
 666     m_focusWidget = m_text;
 667
 668     PostCreation(size);
 669
 670     if (multi_line)
 671     {
 672         gtk_widget_show(m_text);
 673         SetVScrollAdjustment(gtk_scrolled_window_get_vadjustment((GtkScrolledWindow*)m_widget));
 674     }
 675
 676     if (!value.empty())
 677     {
 678         SetValue( value );
 679     }
 680
 681     if (style & wxTE_PASSWORD)
 682     {
 683         if (!multi_line)
 684             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 685     }
 686
 687     if (style & wxTE_READONLY)
 688     {
 689         if (!multi_line)
 690             gtk_editable_set_editable( GTK_EDITABLE(m_text), FALSE );
 691         else
 692             gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
 693     }
 694
 695     if (multi_line)
 696     {
 697         if (style & wxTE_RIGHT)
 698             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
 699         else if (style & wxTE_CENTRE)
 700             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
 701         // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
 702     }
 703     else
 704     {
 705 #ifdef __WXGTK24__
 706         // gtk_entry_set_alignment was introduced in gtk+-2.3.5
 707         if (!gtk_check_version(2,4,0))
 708         {
 709             if (style & wxTE_RIGHT)
 710                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
 711             else if (style & wxTE_CENTRE)
 712                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
 713         }
 714 #endif
 715     }
 716
 717     // We want to be notified about text changes.
 718     if (multi_line)
 719     {
 720         g_signal_connect (m_buffer, "changed",
 721                           G_CALLBACK (gtk_text_changed_callback), this);
 722
 723         // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
 724         if (style & wxTE_AUTO_URL)
 725         {
 726             GtkTextIter start, end;
 727             m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
 728             m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
 729
 730             // We create our wxUrl tag here for slight efficiency gain - we
 731             // don't have to check for the tag existance in callbacks,
 732             // hereby it's guaranteed to exist.
 733             gtk_text_buffer_create_tag(m_buffer, "wxUrl",
 734                                        "foreground", "blue",
 735                                        "underline", PANGO_UNDERLINE_SINGLE,
 736                                        NULL);
 737
 738             // Check for URLs after each text change
 739             g_signal_connect_after (m_buffer, "insert_text",
 740                                     G_CALLBACK (au_insert_text_callback), this);
 741             g_signal_connect_after (m_buffer, "delete_range",
 742                                     G_CALLBACK (au_delete_range_callback), this);
 743
 744             // Block all wxUrl tag applying unless we do it ourselves, in which case we
 745             // block this callback temporarily. This takes care of gtk+ internal
 746             // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
 747             // which is undesired because only a part of the URL might be copied.
 748             // The insert-text signal emitted inside it will take care of newly formed
 749             // or wholly copied URLs.
 750             g_signal_connect (m_buffer, "apply_tag",
 751                               G_CALLBACK (au_apply_tag_callback), NULL);
 752
 753             // Check for URLs in the initial string passed to Create
 754             gtk_text_buffer_get_start_iter(m_buffer, &start);
 755             gtk_text_buffer_get_end_iter(m_buffer, &end);
 756             au_check_range(&start, &end);
 757         }
 758     }
 759     else
 760     {
 761         g_signal_connect (m_text, "changed",
 762                           G_CALLBACK (gtk_text_changed_callback), this);
 763     }
 764
 765     g_signal_connect (m_text, "copy-clipboard",
 766                       G_CALLBACK (gtk_copy_clipboard_callback), this);
 767     g_signal_connect (m_text, "cut-clipboard",
 768                       G_CALLBACK (gtk_cut_clipboard_callback), this);
 769     g_signal_connect (m_text, "paste-clipboard",
 770                       G_CALLBACK (gtk_paste_clipboard_callback), this);
 771
 772     m_cursor = wxCursor( wxCURSOR_IBEAM );
 773
 774     wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
 775     SetDefaultStyle( attrDef );
 776
 777     return true;
 778 }
 779
 780
 781 void wxTextCtrl::CalculateScrollbar()
 782 {
 783 }
 784
 785 wxString wxTextCtrl::GetValue() const
 786 {
 787     wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
 788
 789     wxString tmp;
 790     if (m_windowStyle & wxTE_MULTILINE)
 791     {
 792         GtkTextIter start;
 793         gtk_text_buffer_get_start_iter( m_buffer, &start );
 794         GtkTextIter end;
 795         gtk_text_buffer_get_end_iter( m_buffer, &end );
 796         gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
 797
 798         const wxWxCharBuffer buf = wxGTK_CONV_BACK(text);
 799         if ( buf )
 800             tmp = buf;
 801
 802         g_free( text );
 803     }
 804     else
 805     {
 806         const gchar *text = gtk_entry_get_text( GTK_ENTRY(m_text) );
 807         const wxWxCharBuffer buf = wxGTK_CONV_BACK( text );
 808         if ( buf )
 809             tmp = buf;
 810     }
 811
 812     return tmp;
 813 }
 814
 815 void wxTextCtrl::SetValue( const wxString &value )
 816 {
 817     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 818
 819     // the control won't be modified any more as we programmatically replace
 820     // all the existing text, so reset the flag and don't set it again (and do
 821     // it now, before the text event handler is ran so that IsModified() called
 822     // from there returns the expected value)
 823     m_modified = false;
 824     DontMarkDirtyOnNextChange();
 825
 826     if (m_windowStyle & wxTE_MULTILINE)
 827     {
 828         const wxCharBuffer buffer(wxGTK_CONV(value));
 829         if ( !buffer )
 830         {
 831             // what else can we do? at least don't crash...
 832             return;
 833         }
 834
 835         if (gtk_text_buffer_get_char_count(m_buffer) != 0)
 836             IgnoreNextTextUpdate();
 837
 838         gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
 839     }
 840     else // single line
 841     {
 842         // gtk_entry_set_text() emits two "changed" signals because internally
 843         // it calls gtk_editable_delete_text() and gtk_editable_insert_text()
 844         // but we want to have only one event
 845         IgnoreNextTextUpdate();
 846
 847         gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV(value) );
 848     }
 849
 850     // GRG, Jun/2000: Changed this after a lot of discussion in
 851     //   the lists. wxWidgets 2.2 will have a set of flags to
 852     //   customize this behaviour.
 853     SetInsertionPoint(0);
 854 }
 855
 856 void wxTextCtrl::WriteText( const wxString &text )
 857 {
 858     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 859
 860     if ( text.empty() )
 861         return;
 862
 863     const wxCharBuffer buffer(wxGTK_CONV(text));
 864     if ( !buffer )
 865     {
 866         // what else can we do? at least don't crash...
 867         return;
 868     }
 869
 870     // we're changing the text programmatically
 871     DontMarkDirtyOnNextChange();
 872
 873     if ( m_windowStyle & wxTE_MULTILINE )
 874     {
 875         // First remove the selection if there is one
 876         // TODO:  Is there an easier GTK specific way to do this?
 877         long from, to;
 878         GetSelection(&from, &to);
 879         if (from != to)
 880             Remove(from, to);
 881
 882         // Insert the text
 883         wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
 884
 885         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
 886         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
 887         if ( wxIsSameDouble(adj->value, adj->upper - adj->page_size) )
 888         {
 889             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
 890                     gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
 891         }
 892     }
 893     else // single line
 894     {
 895         // First remove the selection if there is one
 896         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
 897
 898         // This moves the cursor pos to behind the inserted text.
 899         gint len = gtk_editable_get_position(GTK_EDITABLE(m_text));
 900
 901         gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
 902
 903         // Bring entry's cursor uptodate.
 904         gtk_editable_set_position( GTK_EDITABLE(m_text), len );
 905     }
 906 }
 907
 908 void wxTextCtrl::AppendText( const wxString &text )
 909 {
 910     SetInsertionPointEnd();
 911     WriteText( text );
 912 }
 913
 914 wxString wxTextCtrl::GetLineText( long lineNo ) const
 915 {
 916     if (m_windowStyle & wxTE_MULTILINE)
 917     {
 918         GtkTextIter line;
 919         gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
 920         GtkTextIter end = line;
 921         gtk_text_iter_forward_to_line_end(&end);
 922         gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
 923         wxString result(wxGTK_CONV_BACK(text));
 924         g_free(text);
 925         return result;
 926     }
 927     else
 928     {
 929         if (lineNo == 0) return GetValue();
 930         return wxEmptyString;
 931     }
 932 }
 933
 934 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 935 {
 936   /* If you implement this, don't forget to update the documentation!
 937    * (file docs/latex/wx/text.tex) */
 938     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
 939 }
 940
 941 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 942 {
 943     if ( m_windowStyle & wxTE_MULTILINE )
 944     {
 945         GtkTextIter iter;
 946         gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
 947         if (gtk_text_iter_is_end(&iter))
 948             return false;
 949
 950         *y = gtk_text_iter_get_line(&iter);
 951         *x = gtk_text_iter_get_line_offset(&iter);
 952     }
 953     else // single line control
 954     {
 955         if ( pos <= GTK_ENTRY(m_text)->text_length )
 956         {
 957             *y = 0;
 958             *x = pos;
 959         }
 960         else
 961         {
 962             // index out of bounds
 963             return false;
 964         }
 965     }
 966
 967     return true;
 968 }
 969
 970 long wxTextCtrl::XYToPosition(long x, long y ) const
 971 {
 972     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 973
 974     GtkTextIter iter;
 975     if (y >= gtk_text_buffer_get_line_count (m_buffer))
 976         return -1;
 977
 978     gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
 979     if (x >= gtk_text_iter_get_chars_in_line (&iter))
 980         return -1;
 981
 982     return gtk_text_iter_get_offset(&iter) + x;
 983 }
 984
 985 int wxTextCtrl::GetLineLength(long lineNo) const
 986 {
 987     if (m_windowStyle & wxTE_MULTILINE)
 988     {
 989         int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
 990         if (lineNo > last_line)
 991             return -1;
 992
 993         GtkTextIter iter;
 994         gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
 995         // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
 996         return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
 997     }
 998     else
 999     {
1000         wxString str = GetLineText (lineNo);
1001         return (int) str.length();
1002     }
1003 }
1004
1005 int wxTextCtrl::GetNumberOfLines() const
1006 {
1007     if ( m_windowStyle & wxTE_MULTILINE )
1008     {
1009         GtkTextIter iter;
1010         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, 0 );
1011
1012         // move forward by one display line until the end is reached
1013         int lineCount = 1;
1014         while ( gtk_text_view_forward_display_line(GTK_TEXT_VIEW(m_text), &iter) )
1015         {
1016             lineCount++;
1017         }
1018
1019         // If the last character in the text buffer is a newline,
1020         // gtk_text_view_forward_display_line() will return false without that
1021         // line being counted. Must add one manually in that case.
1022         GtkTextIter lastCharIter;
1023         gtk_text_buffer_get_iter_at_offset
1024         (
1025             m_buffer,
1026             &lastCharIter,
1027             gtk_text_buffer_get_char_count(m_buffer) - 1
1028         );
1029         gchar lastChar = gtk_text_iter_get_char( &lastCharIter );
1030         if ( lastChar == wxT('\n') )
1031             lineCount++;
1032
1033         return lineCount;
1034     }
1035     else // single line
1036     {
1037         return 1;
1038     }
1039 }
1040
1041 void wxTextCtrl::SetInsertionPoint( long pos )
1042 {
1043     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1044
1045     if ( IsMultiLine() )
1046     {
1047         GtkTextIter iter;
1048         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1049         gtk_text_buffer_place_cursor( m_buffer, &iter );
1050         gtk_text_view_scroll_mark_onscreen
1051         (
1052             GTK_TEXT_VIEW(m_text),
1053             gtk_text_buffer_get_insert( m_buffer )
1054         );
1055     }
1056     else
1057     {
1058         // FIXME: Is the editable's cursor really uptodate without double set_position in GTK2?
1059         gtk_editable_set_position(GTK_EDITABLE(m_text), int(pos));
1060     }
1061 }
1062
1063 void wxTextCtrl::SetInsertionPointEnd()
1064 {
1065     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1066
1067     if (m_windowStyle & wxTE_MULTILINE)
1068     {
1069         GtkTextIter end;
1070         gtk_text_buffer_get_end_iter( m_buffer, &end );
1071         gtk_text_buffer_place_cursor( m_buffer, &end );
1072     }
1073     else
1074     {
1075         gtk_editable_set_position( GTK_EDITABLE(m_text), -1 );
1076     }
1077 }
1078
1079 void wxTextCtrl::SetEditable( bool editable )
1080 {
1081     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1082
1083     if (m_windowStyle & wxTE_MULTILINE)
1084     {
1085         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1086     }
1087     else
1088     {
1089         gtk_editable_set_editable( GTK_EDITABLE(m_text), editable );
1090     }
1091 }
1092
1093 bool wxTextCtrl::Enable( bool enable )
1094 {
1095     if (!wxWindowBase::Enable(enable))
1096     {
1097         // nothing to do
1098         return false;
1099     }
1100
1101     if (m_windowStyle & wxTE_MULTILINE)
1102     {
1103         SetEditable( enable );
1104     }
1105     else
1106     {
1107         gtk_widget_set_sensitive( m_text, enable );
1108     }
1109
1110     return true;
1111 }
1112
1113 // wxGTK-specific: called recursively by Enable,
1114 // to give widgets an oppprtunity to correct their colours after they
1115 // have been changed by Enable
1116 void wxTextCtrl::OnParentEnable( bool enable )
1117 {
1118     // If we have a custom background colour, we use this colour in both
1119     // disabled and enabled mode, or we end up with a different colour under the
1120     // text.
1121     wxColour oldColour = GetBackgroundColour();
1122     if (oldColour.Ok())
1123     {
1124         // Need to set twice or it'll optimize the useful stuff out
1125         if (oldColour == * wxWHITE)
1126             SetBackgroundColour(*wxBLACK);
1127         else
1128             SetBackgroundColour(*wxWHITE);
1129         SetBackgroundColour(oldColour);
1130     }
1131 }
1132
1133 void wxTextCtrl::MarkDirty()
1134 {
1135     m_modified = true;
1136 }
1137
1138 void wxTextCtrl::DiscardEdits()
1139 {
1140     m_modified = false;
1141 }
1142
1143 // ----------------------------------------------------------------------------
1144 // max text length support
1145 // ----------------------------------------------------------------------------
1146
1147 bool wxTextCtrl::IgnoreTextUpdate()
1148 {
1149     if ( m_ignoreNextUpdate )
1150     {
1151         m_ignoreNextUpdate = false;
1152
1153         return true;
1154     }
1155
1156     return false;
1157 }
1158
1159 bool wxTextCtrl::MarkDirtyOnChange()
1160 {
1161     if ( m_dontMarkDirty )
1162     {
1163         m_dontMarkDirty = false;
1164
1165         return false;
1166     }
1167
1168     return true;
1169 }
1170
1171 void wxTextCtrl::SetMaxLength(unsigned long len)
1172 {
1173     if ( !HasFlag(wxTE_MULTILINE) )
1174     {
1175         gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1176
1177         // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1178         // we had tried to enter more text than allowed by max text length and
1179         // the text wasn't really changed
1180         //
1181         // to detect this and generate TEXT_MAXLEN event instead of
1182         // TEXT_CHANGED one in this case we also catch "insert_text" signal
1183         //
1184         // when max len is set to 0 we disconnect our handler as it means that
1185         // we shouldn't check anything any more
1186         if ( len )
1187         {
1188             g_signal_connect (m_text, "insert_text",
1189                               G_CALLBACK (gtk_insert_text_callback), this);
1190         }
1191         else // no checking
1192         {
1193             g_signal_handlers_disconnect_by_func (m_text,
1194                     (gpointer) gtk_insert_text_callback, this);
1195         }
1196     }
1197 }
1198
1199 void wxTextCtrl::SetSelection( long from, long to )
1200 {
1201     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1202
1203     if (from == -1 && to == -1)
1204     {
1205         from = 0;
1206         to = GetValue().length();
1207     }
1208
1209     if (m_windowStyle & wxTE_MULTILINE)
1210     {
1211         GtkTextIter fromi, toi;
1212         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1213         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1214
1215         gtk_text_buffer_place_cursor( m_buffer, &toi );
1216         gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1217     }
1218     else
1219     {
1220         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1221     }
1222 }
1223
1224 void wxTextCtrl::ShowPosition( long pos )
1225 {
1226     if (m_windowStyle & wxTE_MULTILINE)
1227     {
1228         GtkTextIter iter;
1229         gtk_text_buffer_get_start_iter( m_buffer, &iter );
1230         gtk_text_iter_set_offset( &iter, pos );
1231         GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1232         gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1233     }
1234 }
1235
1236 wxTextCtrlHitTestResult
1237 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1238 {
1239     if ( !IsMultiLine() )
1240     {
1241         // not supported
1242         return wxTE_HT_UNKNOWN;
1243     }
1244
1245     int x, y;
1246     gtk_text_view_window_to_buffer_coords
1247     (
1248         GTK_TEXT_VIEW(m_text),
1249         GTK_TEXT_WINDOW_TEXT,
1250         pt.x, pt.y,
1251         &x, &y
1252     );
1253
1254     GtkTextIter iter;
1255     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1256     if ( pos )
1257         *pos = gtk_text_iter_get_offset(&iter);
1258
1259     return wxTE_HT_ON_TEXT;
1260 }
1261
1262 long wxTextCtrl::GetInsertionPoint() const
1263 {
1264     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1265
1266     if (m_windowStyle & wxTE_MULTILINE)
1267     {
1268         // There is no direct accessor for the cursor, but
1269         // internally, the cursor is the "mark" called
1270         // "insert" in the text view's btree structure.
1271
1272         GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1273         GtkTextIter cursor;
1274         gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1275
1276         return gtk_text_iter_get_offset( &cursor );
1277     }
1278     else
1279     {
1280         return (long) gtk_editable_get_position(GTK_EDITABLE(m_text));
1281     }
1282 }
1283
1284 wxTextPos wxTextCtrl::GetLastPosition() const
1285 {
1286     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1287
1288     int pos = 0;
1289
1290     if (m_windowStyle & wxTE_MULTILINE)
1291     {
1292         GtkTextIter end;
1293         gtk_text_buffer_get_end_iter( m_buffer, &end );
1294
1295         pos = gtk_text_iter_get_offset( &end );
1296     }
1297     else
1298     {
1299         pos = GTK_ENTRY(m_text)->text_length;
1300     }
1301
1302     return (long)pos;
1303 }
1304
1305 void wxTextCtrl::Remove( long from, long to )
1306 {
1307     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1308
1309     if (m_windowStyle & wxTE_MULTILINE)
1310     {
1311         GtkTextIter fromi, toi;
1312         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1313         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1314
1315         gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1316     }
1317     else // single line
1318         gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1319 }
1320
1321 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1322 {
1323     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1324
1325     Remove( from, to );
1326
1327     if (!value.empty())
1328     {
1329         SetInsertionPoint( from );
1330         WriteText( value );
1331     }
1332 }
1333
1334 void wxTextCtrl::Cut()
1335 {
1336     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1337
1338     if (m_windowStyle & wxTE_MULTILINE)
1339         g_signal_emit_by_name (m_text, "cut-clipboard");
1340     else
1341         gtk_editable_cut_clipboard(GTK_EDITABLE(m_text));
1342 }
1343
1344 void wxTextCtrl::Copy()
1345 {
1346     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1347
1348     if (m_windowStyle & wxTE_MULTILINE)
1349         g_signal_emit_by_name (m_text, "copy-clipboard");
1350     else
1351         gtk_editable_copy_clipboard(GTK_EDITABLE(m_text));
1352 }
1353
1354 void wxTextCtrl::Paste()
1355 {
1356     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1357
1358     if (m_windowStyle & wxTE_MULTILINE)
1359         g_signal_emit_by_name (m_text, "paste-clipboard");
1360     else
1361         gtk_editable_paste_clipboard(GTK_EDITABLE(m_text));
1362 }
1363
1364 // Undo/redo
1365 void wxTextCtrl::Undo()
1366 {
1367     // TODO
1368     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1369 }
1370
1371 void wxTextCtrl::Redo()
1372 {
1373     // TODO
1374     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1375 }
1376
1377 bool wxTextCtrl::CanUndo() const
1378 {
1379     // TODO
1380     //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1381     return false;
1382 }
1383
1384 bool wxTextCtrl::CanRedo() const
1385 {
1386     // TODO
1387     //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1388     return false;
1389 }
1390
1391 // If the return values from and to are the same, there is no
1392 // selection.
1393 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1394 {
1395     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1396
1397     gint from = -1;
1398     gint to = -1;
1399     bool haveSelection = false;
1400
1401      if (m_windowStyle & wxTE_MULTILINE)
1402      {
1403          GtkTextIter ifrom, ito;
1404          if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1405          {
1406              haveSelection = true;
1407              from = gtk_text_iter_get_offset(&ifrom);
1408              to = gtk_text_iter_get_offset(&ito);
1409          }
1410      }
1411      else  // not multi-line
1412      {
1413          if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1414                                                  &from, &to) )
1415          {
1416              haveSelection = true;
1417          }
1418      }
1419
1420      if (! haveSelection )
1421           from = to = GetInsertionPoint();
1422
1423      if ( from > to )
1424      {
1425          // exchange them to be compatible with wxMSW
1426          gint tmp = from;
1427          from = to;
1428          to = tmp;
1429      }
1430
1431     if ( fromOut )
1432         *fromOut = from;
1433     if ( toOut )
1434         *toOut = to;
1435 }
1436
1437
1438 bool wxTextCtrl::IsEditable() const
1439 {
1440     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1441
1442     if (m_windowStyle & wxTE_MULTILINE)
1443     {
1444         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1445     }
1446     else
1447     {
1448         return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1449     }
1450 }
1451
1452 bool wxTextCtrl::IsModified() const
1453 {
1454     return m_modified;
1455 }
1456
1457 void wxTextCtrl::Clear()
1458 {
1459     SetValue( wxEmptyString );
1460 }
1461
1462 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1463 {
1464     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1465
1466     if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxTE_PROCESS_ENTER))
1467     {
1468         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1469         event.SetEventObject(this);
1470         event.SetString(GetValue());
1471         if (GetEventHandler()->ProcessEvent(event)) return;
1472     }
1473
1474     if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1475     {
1476         // This will invoke the dialog default action, such
1477         // as the clicking the default button.
1478
1479         wxWindow *top_frame = m_parent;
1480         while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1481             top_frame = top_frame->GetParent();
1482
1483         if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1484         {
1485             GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1486
1487             if (window->default_widget)
1488             {
1489                 gtk_widget_activate (window->default_widget);
1490                 return;
1491             }
1492         }
1493     }
1494
1495     key_event.Skip();
1496 }
1497
1498 GtkWidget* wxTextCtrl::GetConnectWidget()
1499 {
1500     return GTK_WIDGET(m_text);
1501 }
1502
1503 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1504 {
1505     if (m_windowStyle & wxTE_MULTILINE)
1506     {
1507         return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT );  // pure guesswork
1508     }
1509     else
1510     {
1511         return (window == GTK_ENTRY(m_text)->text_area);
1512     }
1513 }
1514
1515 // the font will change for subsequent text insertiongs
1516 bool wxTextCtrl::SetFont( const wxFont &font )
1517 {
1518     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1519
1520     if ( !wxTextCtrlBase::SetFont(font) )
1521     {
1522         // font didn't change, nothing to do
1523         return false;
1524     }
1525
1526     if ( m_windowStyle & wxTE_MULTILINE )
1527     {
1528         SetUpdateFont(true);
1529
1530         m_defaultStyle.SetFont(font);
1531
1532         ChangeFontGlobally();
1533     }
1534
1535     return true;
1536 }
1537
1538 void wxTextCtrl::ChangeFontGlobally()
1539 {
1540     // this method is very inefficient and hence should be called as rarely as
1541     // possible!
1542     //
1543     // TODO: it can be implemented much more efficiently for GTK2
1544     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1545                   _T("shouldn't be called for single line controls") );
1546
1547     wxString value = GetValue();
1548     if ( !value.empty() )
1549     {
1550         SetUpdateFont(false);
1551
1552         Clear();
1553         AppendText(value);
1554     }
1555 }
1556
1557 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1558 {
1559     if ( !wxControl::SetForegroundColour(colour) )
1560         return false;
1561
1562     // update default fg colour too
1563     m_defaultStyle.SetTextColour(colour);
1564
1565     return true;
1566 }
1567
1568 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1569 {
1570     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1571
1572     if ( !wxControl::SetBackgroundColour( colour ) )
1573         return false;
1574
1575     if (!m_backgroundColour.Ok())
1576         return false;
1577
1578     // change active background color too
1579     m_defaultStyle.SetBackgroundColour( colour );
1580
1581     return true;
1582 }
1583
1584 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1585 {
1586     if ( m_windowStyle & wxTE_MULTILINE )
1587     {
1588         if ( style.IsDefault() )
1589         {
1590             // nothing to do
1591             return true;
1592         }
1593
1594         gint l = gtk_text_buffer_get_char_count( m_buffer );
1595
1596         wxCHECK_MSG( start >= 0 && end <= l, false,
1597                      _T("invalid range in wxTextCtrl::SetStyle") );
1598
1599         GtkTextIter starti, endi;
1600         gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1601         gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1602
1603         // use the attributes from style which are set in it and fall back
1604         // first to the default style and then to the text control default
1605         // colours for the others
1606         wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1607
1608         wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1609
1610         return true;
1611     }
1612
1613     // else single line
1614     // cannot do this for GTK+'s Entry widget
1615     return false;
1616 }
1617
1618 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1619 {
1620     gtk_widget_modify_style(m_text, style);
1621 }
1622
1623 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1624 {
1625     Cut();
1626 }
1627
1628 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1629 {
1630     Copy();
1631 }
1632
1633 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1634 {
1635     Paste();
1636 }
1637
1638 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1639 {
1640     Undo();
1641 }
1642
1643 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1644 {
1645     Redo();
1646 }
1647
1648 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1649 {
1650     event.Enable( CanCut() );
1651 }
1652
1653 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1654 {
1655     event.Enable( CanCopy() );
1656 }
1657
1658 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1659 {
1660     event.Enable( CanPaste() );
1661 }
1662
1663 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1664 {
1665     event.Enable( CanUndo() );
1666 }
1667
1668 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1669 {
1670     event.Enable( CanRedo() );
1671 }
1672
1673 void wxTextCtrl::OnInternalIdle()
1674 {
1675     if (g_delayedFocus == this)
1676     {
1677         if (GTK_WIDGET_REALIZED(m_widget))
1678         {
1679             gtk_widget_grab_focus( m_widget );
1680             g_delayedFocus = NULL;
1681         }
1682     }
1683
1684     if (wxUpdateUIEvent::CanUpdate(this))
1685         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1686 }
1687
1688 wxSize wxTextCtrl::DoGetBestSize() const
1689 {
1690     // FIXME should be different for multi-line controls...
1691     wxSize ret( wxControl::DoGetBestSize() );
1692     wxSize best(80, ret.y);
1693     CacheBestSize(best);
1694     return best;
1695 }
1696
1697 // ----------------------------------------------------------------------------
1698 // freeze/thaw
1699 // ----------------------------------------------------------------------------
1700
1701 void wxTextCtrl::Freeze()
1702 {
1703     if ( HasFlag(wxTE_MULTILINE) )
1704     {
1705         if ( !m_frozenness++ )
1706         {
1707             // freeze textview updates and remove buffer
1708             g_signal_connect (m_text, "expose_event",
1709                               G_CALLBACK (gtk_text_exposed_callback), this);
1710             g_signal_connect (m_widget, "expose_event",
1711                               G_CALLBACK (gtk_text_exposed_callback), this);
1712             gtk_widget_set_sensitive(m_widget, false);
1713             g_object_ref(m_buffer);
1714             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
1715         }
1716     }
1717 }
1718
1719 void wxTextCtrl::Thaw()
1720 {
1721     if ( HasFlag(wxTE_MULTILINE) )
1722     {
1723         wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
1724
1725         if ( !--m_frozenness )
1726         {
1727             // Reattach buffer and thaw textview updates
1728             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1729             g_object_unref(m_buffer);
1730             gtk_widget_set_sensitive(m_widget, true);
1731             g_signal_handlers_disconnect_by_func (m_widget,
1732                     (gpointer) gtk_text_exposed_callback, this);
1733             g_signal_handlers_disconnect_by_func (m_text,
1734                     (gpointer) gtk_text_exposed_callback, this);
1735         }
1736     }
1737 }
1738
1739 // ----------------------------------------------------------------------------
1740 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
1741 // ----------------------------------------------------------------------------
1742
1743 // FIXME: when dragging on a link the sample gets an "Unknown event".
1744 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
1745 // a buggy sample, or something else
1746 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
1747 {
1748     event.Skip();
1749     if(!(m_windowStyle & wxTE_AUTO_URL))
1750         return;
1751
1752     gint x, y;
1753     GtkTextIter start, end;
1754     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
1755                                                 "wxUrl");
1756
1757     gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
1758                                           event.GetX(), event.GetY(), &x, &y);
1759
1760     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
1761     if (!gtk_text_iter_has_tag(&end, tag))
1762     {
1763         gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1764                               GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
1765         return;
1766     }
1767
1768     gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1769                           GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
1770
1771     start = end;
1772     if(!gtk_text_iter_begins_tag(&start, tag))
1773         gtk_text_iter_backward_to_tag_toggle(&start, tag);
1774     if(!gtk_text_iter_ends_tag(&end, tag))
1775         gtk_text_iter_forward_to_tag_toggle(&end, tag);
1776
1777     // Native context menu is probably not desired on an URL.
1778     // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
1779     if(event.GetEventType() == wxEVT_RIGHT_DOWN)
1780         event.Skip(false);
1781
1782     wxTextUrlEvent url_event(m_windowId, event,
1783                              gtk_text_iter_get_offset(&start),
1784                              gtk_text_iter_get_offset(&end));
1785
1786     InitCommandEvent(url_event);
1787     // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
1788     //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
1789     GetEventHandler()->ProcessEvent(url_event);
1790 }
1791
1792 // static
1793 wxVisualAttributes
1794 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1795 {
1796     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1797 }