src/gtk/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 #include "wx/utils.h"
  15 #include "wx/intl.h"
  16 #include "wx/log.h"
  17 #include "wx/math.h"
  18 #include "wx/settings.h"
  19 #include "wx/panel.h"
  20 #include "wx/strconv.h"
  21 #include "wx/fontutil.h"        // for wxNativeFontInfo (GetNativeFontInfo())
  22
  23 #include <sys/types.h>
  24 #include <sys/stat.h>
  25 #include <ctype.h>
  26 #include "wx/math.h"
  27
  28 #include "wx/gtk/private.h"
  29 #include <gdk/gdkkeysyms.h>
  30
  31 //-----------------------------------------------------------------------------
  32 // data
  33 //-----------------------------------------------------------------------------
  34
  35 extern wxCursor   g_globalCursor;
  36 extern wxWindowGTK *g_delayedFocus;
  37
  38 // ----------------------------------------------------------------------------
  39 // helpers
  40 // ----------------------------------------------------------------------------
  41
  42 extern "C" {
  43 static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
  44                              GtkTextTag *tag,
  45                              GtkTextIter *start,
  46                              GtkTextIter *end,
  47                              char *prefix)
  48 {
  49     gchar *name;
  50     g_object_get (tag, "name", &name, NULL);
  51
  52     if (!name || strncmp(name, prefix, strlen(prefix)))
  53         // anonymous tag or not starting with prefix - don't remove
  54         g_signal_stop_emission_by_name (buffer, "remove_tag");
  55
  56     g_free(name);
  57 }
  58 }
  59
  60 extern "C" {
  61 static void wxGtkTextApplyTagsFromAttr(GtkTextBuffer *text_buffer,
  62                                        const wxTextAttr& attr,
  63                                        GtkTextIter *start,
  64                                        GtkTextIter *end)
  65 {
  66     static gchar buf[1024];
  67     GtkTextTag *tag;
  68
  69     gulong remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
  70             G_CALLBACK (wxGtkOnRemoveTag), gpointer("WX"));
  71     gtk_text_buffer_remove_all_tags(text_buffer, start, end);
  72     g_signal_handler_disconnect (text_buffer, remove_handler_id);
  73
  74     if (attr.HasFont())
  75     {
  76         char *font_string;
  77         PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
  78         font_string = pango_font_description_to_string(font_description);
  79         g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string);
  80         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
  81                                          buf );
  82         if (!tag)
  83             tag = gtk_text_buffer_create_tag( text_buffer, buf,
  84                                               "font-desc", font_description,
  85                                               NULL );
  86         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
  87         g_free (font_string);
  88
  89         if (attr.GetFont().GetUnderlined())
  90         {
  91             g_snprintf(buf, sizeof(buf), "WXFONTUNDERLINE");
  92             tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
  93                                              buf );
  94             if (!tag)
  95                 tag = gtk_text_buffer_create_tag( text_buffer, buf,
  96                                                   "underline-set", TRUE,
  97                                                   "underline", PANGO_UNDERLINE_SINGLE,
  98                                                   NULL );
  99             gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 100         }
 101     }
 102
 103     if (attr.HasTextColour())
 104     {
 105         GdkColor *colFg = attr.GetTextColour().GetColor();
 106         g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
 107                    colFg->red, colFg->green, colFg->blue);
 108         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 109                                          buf );
 110         if (!tag)
 111             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 112                                               "foreground-gdk", colFg, NULL );
 113         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 114     }
 115
 116     if (attr.HasBackgroundColour())
 117     {
 118         GdkColor *colBg = attr.GetBackgroundColour().GetColor();
 119         g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
 120                    colBg->red, colBg->green, colBg->blue);
 121         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 122                                          buf );
 123         if (!tag)
 124             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 125                                               "background-gdk", colBg, NULL );
 126         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 127     }
 128
 129     if (attr.HasAlignment())
 130     {
 131         GtkTextIter para_start, para_end = *end;
 132         gtk_text_buffer_get_iter_at_line( text_buffer,
 133                                           &para_start,
 134                                           gtk_text_iter_get_line(start) );
 135         gtk_text_iter_forward_line(&para_end);
 136
 137         remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
 138                                               G_CALLBACK(wxGtkOnRemoveTag),
 139                                               gpointer("WXALIGNMENT"));
 140         gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
 141         g_signal_handler_disconnect (text_buffer, remove_handler_id);
 142
 143         GtkJustification align;
 144         switch (attr.GetAlignment())
 145         {
 146             default:
 147                 align = GTK_JUSTIFY_LEFT;
 148                 break;
 149             case wxTEXT_ALIGNMENT_RIGHT:
 150                 align = GTK_JUSTIFY_RIGHT;
 151                 break;
 152             case wxTEXT_ALIGNMENT_CENTER:
 153                 align = GTK_JUSTIFY_CENTER;
 154                 break;
 155             // gtk+ doesn't support justify as of gtk+-2.7.4
 156         }
 157
 158         g_snprintf(buf, sizeof(buf), "WXALIGNMENT %d", align);
 159         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 160                                          buf );
 161         if (!tag)
 162             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 163                                               "justification", align, NULL );
 164         gtk_text_buffer_apply_tag( text_buffer, tag, &para_start, &para_end );
 165     }
 166 }
 167 }
 168
 169 extern "C" {
 170 static void wxGtkTextInsert(GtkWidget *text,
 171                             GtkTextBuffer *text_buffer,
 172                             const wxTextAttr& attr,
 173                             const wxCharBuffer& buffer)
 174
 175 {
 176     gint start_offset;
 177     GtkTextIter iter, start;
 178
 179     gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
 180                                      gtk_text_buffer_get_insert (text_buffer) );
 181     start_offset = gtk_text_iter_get_offset (&iter);
 182     gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
 183
 184     gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
 185
 186     wxGtkTextApplyTagsFromAttr(text_buffer, attr, &start, &iter);
 187 }
 188 }
 189
 190 // ----------------------------------------------------------------------------
 191 // "insert_text" for GtkEntry
 192 // ----------------------------------------------------------------------------
 193
 194 extern "C" {
 195 static void
 196 gtk_insert_text_callback(GtkEditable *editable,
 197                          const gchar *new_text,
 198                          gint new_text_length,
 199                          gint *position,
 200                          wxTextCtrl *win)
 201 {
 202     if (g_isIdle)
 203         wxapp_install_idle_handler();
 204
 205     // we should only be called if we have a max len limit at all
 206     GtkEntry *entry = GTK_ENTRY (editable);
 207
 208     wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
 209
 210     // check that we don't overflow the max length limit
 211     //
 212     // FIXME: this doesn't work when we paste a string which is going to be
 213     //        truncated
 214     if ( entry->text_length == entry->text_max_length )
 215     {
 216         // we don't need to run the base class version at all
 217         g_signal_stop_emission_by_name (editable, "insert_text");
 218
 219         // remember that the next changed signal is to be ignored to avoid
 220         // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
 221         win->IgnoreNextTextUpdate();
 222
 223         // and generate the correct one ourselves
 224         wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
 225         event.SetEventObject(win);
 226         event.SetString(win->GetValue());
 227         win->GetEventHandler()->ProcessEvent( event );
 228     }
 229 }
 230 }
 231
 232 // Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
 233
 234 extern "C" {
 235 static void
 236 au_apply_tag_callback(GtkTextBuffer *buffer,
 237                       GtkTextTag *tag,
 238                       GtkTextIter *start,
 239                       GtkTextIter *end,
 240                       gpointer textctrl)
 241 {
 242     if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
 243         g_signal_stop_emission_by_name (buffer, "apply_tag");
 244 }
 245 }
 246
 247 //-----------------------------------------------------------------------------
 248 //  GtkTextCharPredicates for gtk_text_iter_*_find_char
 249 //-----------------------------------------------------------------------------
 250
 251 extern "C" {
 252 static gboolean
 253 pred_whitespace (gunichar ch, gpointer user_data)
 254 {
 255     return g_unichar_isspace(ch);
 256 }
 257 }
 258
 259 extern "C" {
 260 static gboolean
 261 pred_non_whitespace (gunichar ch, gpointer user_data)
 262 {
 263     return !g_unichar_isspace(ch);
 264 }
 265 }
 266
 267 extern "C" {
 268 static gboolean
 269 pred_nonpunct (gunichar ch, gpointer user_data)
 270 {
 271     return !g_unichar_ispunct(ch);
 272 }
 273 }
 274
 275 extern "C" {
 276 static gboolean
 277 pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
 278 {
 279     return !g_unichar_ispunct(ch) || ch == '/';
 280 }
 281 }
 282
 283 //-----------------------------------------------------------------------------
 284 //  Check for links between s and e and correct tags as necessary
 285 //-----------------------------------------------------------------------------
 286
 287 // This function should be made match better while being efficient at one point.
 288 // Most probably with a row of regular expressions.
 289 extern "C" {
 290 static void
 291 au_check_word( GtkTextIter *s, GtkTextIter *e )
 292 {
 293     static const char *URIPrefixes[] =
 294     {
 295         "http://",
 296         "ftp://",
 297         "www.",
 298         "ftp.",
 299         "mailto://",
 300         "https://",
 301         "file://",
 302         "nntp://",
 303         "news://",
 304         "telnet://",
 305         "mms://",
 306         "gopher://",
 307         "prospero://",
 308         "wais://",
 309     };
 310
 311     GtkTextIter start = *s, end = *e;
 312     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 313
 314     // Get our special link tag
 315     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 316
 317     // Get rid of punctuation from beginning and end.
 318     // Might want to move this to au_check_range if an improved link checking doesn't
 319     // use some intelligent punctuation checking itself (beware of undesired iter modifications).
 320     if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
 321         gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
 322
 323     gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
 324     gtk_text_iter_forward_char(&end);
 325
 326     gchar* text = gtk_text_iter_get_text( &start, &end );
 327     size_t len = strlen(text), prefix_len;
 328     size_t n;
 329
 330     for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
 331     {
 332         prefix_len = strlen(URIPrefixes[n]);
 333         if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
 334             break;
 335     }
 336
 337     if(n < WXSIZEOF(URIPrefixes))
 338     {
 339         gulong signal_id = g_signal_handler_find (buffer,
 340                                                   (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
 341                                                   0, 0, NULL,
 342                                                   (gpointer)au_apply_tag_callback, NULL);
 343
 344         g_signal_handler_block (buffer, signal_id);
 345         gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
 346         g_signal_handler_unblock (buffer, signal_id);
 347     }
 348 }
 349 }
 350
 351 extern "C" {
 352 static void
 353 au_check_range(GtkTextIter *s,
 354                GtkTextIter *range_end)
 355 {
 356     GtkTextIter range_start = *s;
 357     GtkTextIter word_end;
 358     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 359     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 360
 361     gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
 362
 363     if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
 364         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 365
 366     while(!gtk_text_iter_equal(&range_start, range_end))
 367     {
 368         word_end = range_start;
 369         gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
 370
 371         // Now we should have a word delimited by range_start and word_end, correct link tags
 372         au_check_word(&range_start, &word_end);
 373
 374         range_start = word_end;
 375         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 376     }
 377 }
 378 }
 379
 380 //-----------------------------------------------------------------------------
 381 //  "insert-text" for GtkTextBuffer
 382 //-----------------------------------------------------------------------------
 383
 384 extern "C" {
 385 static void
 386 au_insert_text_callback(GtkTextBuffer *buffer,
 387                         GtkTextIter *end,
 388                         gchar *text,
 389                         gint len,
 390                         wxTextCtrl *win)
 391 {
 392     if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 393         return;
 394
 395     GtkTextIter start = *end;
 396     gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
 397
 398     GtkTextIter line_start = start;
 399     GtkTextIter line_end = *end;
 400     GtkTextIter words_start = start;
 401     GtkTextIter words_end = *end;
 402
 403     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
 404     gtk_text_iter_forward_to_line_end(&line_end);
 405     gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
 406     gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
 407
 408     au_check_range(&words_start, &words_end);
 409 }
 410 }
 411
 412 //-----------------------------------------------------------------------------
 413 //  "delete-range" for GtkTextBuffer
 414 //-----------------------------------------------------------------------------
 415
 416 extern "C" {
 417 static void
 418 au_delete_range_callback(GtkTextBuffer *buffer,
 419                          GtkTextIter *start,
 420                          GtkTextIter *end,
 421                          wxTextCtrl *win)
 422 {
 423     if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 424         return;
 425
 426     GtkTextIter line_start = *start, line_end = *end;
 427
 428     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
 429     gtk_text_iter_forward_to_line_end(&line_end);
 430     gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
 431     gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
 432
 433     au_check_range(start, end);
 434 }
 435 }
 436
 437
 438 //-----------------------------------------------------------------------------
 439 //  "changed"
 440 //-----------------------------------------------------------------------------
 441
 442 extern "C" {
 443 static void
 444 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
 445 {
 446     if ( win->IgnoreTextUpdate() )
 447         return;
 448
 449     if (!win->m_hasVMT) return;
 450
 451     if (g_isIdle)
 452         wxapp_install_idle_handler();
 453
 454     win->SetModified();
 455
 456     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
 457     event.SetEventObject( win );
 458     win->GetEventHandler()->ProcessEvent( event );
 459 }
 460 }
 461
 462 //-----------------------------------------------------------------------------
 463 // "expose_event" from scrolled window and textview
 464 //-----------------------------------------------------------------------------
 465
 466 extern "C" {
 467 static gboolean
 468 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
 469 {
 470     return TRUE;
 471 }
 472 }
 473
 474
 475 //-----------------------------------------------------------------------------
 476 //  wxTextCtrl
 477 //-----------------------------------------------------------------------------
 478
 479 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
 480
 481 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 482     EVT_CHAR(wxTextCtrl::OnChar)
 483
 484     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 485     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 486     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 487     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 488     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 489
 490     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 491     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 492     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 493     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 494     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 495
 496     // wxTE_AUTO_URL wxTextUrl support. Currently only creates
 497     // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
 498     EVT_MOTION      (wxTextCtrl::OnUrlMouseEvent)
 499     EVT_LEFT_DOWN   (wxTextCtrl::OnUrlMouseEvent)
 500     EVT_LEFT_UP     (wxTextCtrl::OnUrlMouseEvent)
 501     EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
 502     EVT_RIGHT_DOWN  (wxTextCtrl::OnUrlMouseEvent)
 503     EVT_RIGHT_UP    (wxTextCtrl::OnUrlMouseEvent)
 504     EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
 505 END_EVENT_TABLE()
 506
 507 void wxTextCtrl::Init()
 508 {
 509     m_ignoreNextUpdate =
 510     m_modified = false;
 511     SetUpdateFont(false);
 512     m_text =
 513     m_vScrollbar = (GtkWidget *)NULL;
 514     m_frozenness = 0;
 515     m_gdkHandCursor = NULL;
 516     m_gdkXTermCursor = NULL;
 517 }
 518
 519 wxTextCtrl::~wxTextCtrl()
 520 {
 521     if(m_gdkHandCursor)
 522         gdk_cursor_unref(m_gdkHandCursor);
 523     if(m_gdkXTermCursor)
 524         gdk_cursor_unref(m_gdkXTermCursor);
 525 }
 526
 527 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 528                         wxWindowID id,
 529                         const wxString &value,
 530                         const wxPoint &pos,
 531                         const wxSize &size,
 532                         long style,
 533                         const wxValidator& validator,
 534                         const wxString &name )
 535 {
 536     Init();
 537
 538     Create( parent, id, value, pos, size, style, validator, name );
 539 }
 540
 541 bool wxTextCtrl::Create( wxWindow *parent,
 542                          wxWindowID id,
 543                          const wxString &value,
 544                          const wxPoint &pos,
 545                          const wxSize &size,
 546                          long style,
 547                          const wxValidator& validator,
 548                          const wxString &name )
 549 {
 550     m_needParent = true;
 551     m_acceptsFocus = true;
 552
 553     if (!PreCreation( parent, pos, size ) ||
 554         !CreateBase( parent, id, pos, size, style, validator, name ))
 555     {
 556         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 557         return false;
 558     }
 559
 560
 561     m_vScrollbarVisible = false;
 562
 563     bool multi_line = (style & wxTE_MULTILINE) != 0;
 564
 565     if (multi_line)
 566     {
 567         // Create view
 568         m_text = gtk_text_view_new();
 569
 570         m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 571
 572         // create scrolled window
 573         m_widget = gtk_scrolled_window_new( NULL, NULL );
 574         gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
 575                                         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 576
 577         // Insert view into scrolled window
 578         gtk_container_add( GTK_CONTAINER(m_widget), m_text );
 579
 580         // translate wx wrapping style to GTK+
 581         GtkWrapMode wrap;
 582         if ( HasFlag( wxTE_DONTWRAP ) )
 583             wrap = GTK_WRAP_NONE;
 584         else if ( HasFlag( wxTE_CHARWRAP ) )
 585             wrap = GTK_WRAP_CHAR;
 586         else if ( HasFlag( wxTE_WORDWRAP ) )
 587             wrap = GTK_WRAP_WORD;
 588         else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
 589         {
 590             // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
 591 #ifdef __WXGTK24__
 592             if ( !gtk_check_version(2,4,0) )
 593             {
 594                 wrap = GTK_WRAP_WORD_CHAR;
 595             }
 596             else
 597 #endif
 598             wrap = GTK_WRAP_WORD;
 599         }
 600
 601         gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
 602
 603         if (!HasFlag(wxNO_BORDER))
 604             gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
 605
 606         gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
 607
 608         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 609     }
 610     else
 611     {
 612         // a single-line text control: no need for scrollbars
 613         m_widget =
 614         m_text = gtk_entry_new();
 615
 616         if (style & wxNO_BORDER)
 617             g_object_set( GTK_ENTRY(m_text), "has-frame", FALSE, NULL );
 618     }
 619
 620     m_parent->DoAddChild( this );
 621
 622     m_focusWidget = m_text;
 623
 624     PostCreation(size);
 625
 626     if (multi_line)
 627     {
 628         gtk_widget_show(m_text);
 629         SetVScrollAdjustment(gtk_scrolled_window_get_vadjustment((GtkScrolledWindow*)m_widget));
 630     }
 631
 632     if (!value.empty())
 633     {
 634         SetValue( value );
 635     }
 636
 637     if (style & wxTE_PASSWORD)
 638     {
 639         if (!multi_line)
 640             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 641     }
 642
 643     if (style & wxTE_READONLY)
 644     {
 645         if (!multi_line)
 646             gtk_editable_set_editable( GTK_EDITABLE(m_text), FALSE );
 647         else
 648             gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
 649     }
 650
 651     if (multi_line)
 652     {
 653         if (style & wxTE_RIGHT)
 654             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
 655         else if (style & wxTE_CENTRE)
 656             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
 657         // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
 658     }
 659     else
 660     {
 661 #ifdef __WXGTK24__
 662         // gtk_entry_set_alignment was introduced in gtk+-2.3.5
 663         if (!gtk_check_version(2,4,0))
 664         {
 665             if (style & wxTE_RIGHT)
 666                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
 667             else if (style & wxTE_CENTRE)
 668                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
 669         }
 670 #endif
 671     }
 672
 673     // We want to be notified about text changes.
 674     if (multi_line)
 675     {
 676         g_signal_connect (m_buffer, "changed",
 677                           G_CALLBACK (gtk_text_changed_callback), this);
 678
 679         // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
 680         if (style & wxTE_AUTO_URL)
 681         {
 682             GtkTextIter start, end;
 683             m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
 684             m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
 685
 686             // We create our wxUrl tag here for slight efficiency gain - we
 687             // don't have to check for the tag existance in callbacks,
 688             // hereby it's guaranteed to exist.
 689             gtk_text_buffer_create_tag(m_buffer, "wxUrl",
 690                                        "foreground", "blue",
 691                                        "underline", PANGO_UNDERLINE_SINGLE,
 692                                        NULL);
 693
 694             // Check for URLs after each text change
 695             g_signal_connect_after (m_buffer, "insert_text",
 696                                     G_CALLBACK (au_insert_text_callback), this);
 697             g_signal_connect_after (m_buffer, "delete_range",
 698                                     G_CALLBACK (au_delete_range_callback), this);
 699
 700             // Block all wxUrl tag applying unless we do it ourselves, in which case we
 701             // block this callback temporarily. This takes care of gtk+ internal
 702             // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
 703             // which is undesired because only a part of the URL might be copied.
 704             // The insert-text signal emitted inside it will take care of newly formed
 705             // or wholly copied URLs.
 706             g_signal_connect (m_buffer, "apply_tag",
 707                               G_CALLBACK (au_apply_tag_callback), NULL);
 708
 709             // Check for URLs in the initial string passed to Create
 710             gtk_text_buffer_get_start_iter(m_buffer, &start);
 711             gtk_text_buffer_get_end_iter(m_buffer, &end);
 712             au_check_range(&start, &end);
 713         }
 714     }
 715     else
 716     {
 717         g_signal_connect (m_text, "changed",
 718                           G_CALLBACK (gtk_text_changed_callback), this);
 719     }
 720
 721     m_cursor = wxCursor( wxCURSOR_IBEAM );
 722
 723     wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
 724     SetDefaultStyle( attrDef );
 725
 726     return true;
 727 }
 728
 729
 730 void wxTextCtrl::CalculateScrollbar()
 731 {
 732 }
 733
 734 wxString wxTextCtrl::GetValue() const
 735 {
 736     wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
 737
 738     wxString tmp;
 739     if (m_windowStyle & wxTE_MULTILINE)
 740     {
 741         GtkTextIter start;
 742         gtk_text_buffer_get_start_iter( m_buffer, &start );
 743         GtkTextIter end;
 744         gtk_text_buffer_get_end_iter( m_buffer, &end );
 745         gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
 746
 747 #if wxUSE_UNICODE
 748         wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
 749 #else
 750         wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
 751 #endif
 752         if ( buffer )
 753             tmp = buffer;
 754
 755         g_free( text );
 756     }
 757     else
 758     {
 759         tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
 760     }
 761
 762     return tmp;
 763 }
 764
 765 void wxTextCtrl::SetValue( const wxString &value )
 766 {
 767     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 768
 769     if (m_windowStyle & wxTE_MULTILINE)
 770     {
 771 #if wxUSE_UNICODE
 772         wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
 773 #else
 774         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
 775 #endif
 776         if (gtk_text_buffer_get_char_count(m_buffer) != 0)
 777             IgnoreNextTextUpdate();
 778
 779         if ( !buffer )
 780         {
 781             // what else can we do? at least don't crash...
 782             return;
 783         }
 784
 785         gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
 786     }
 787     else
 788     {
 789         gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
 790     }
 791
 792     // GRG, Jun/2000: Changed this after a lot of discussion in
 793     //   the lists. wxWidgets 2.2 will have a set of flags to
 794     //   customize this behaviour.
 795     SetInsertionPoint(0);
 796
 797     m_modified = false;
 798 }
 799
 800 void wxTextCtrl::WriteText( const wxString &text )
 801 {
 802     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 803
 804     if ( text.empty() )
 805         return;
 806
 807     // gtk_text_changed_callback() will set m_modified to true but m_modified
 808     // shouldn't be changed by the program writing to the text control itself,
 809     // so save the old value and restore when we're done
 810     bool oldModified = m_modified;
 811
 812     if ( m_windowStyle & wxTE_MULTILINE )
 813     {
 814 #if wxUSE_UNICODE
 815         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
 816 #else
 817         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
 818 #endif
 819         if ( !buffer )
 820         {
 821             // what else can we do? at least don't crash...
 822             return;
 823         }
 824
 825         // TODO: Call whatever is needed to delete the selection.
 826         wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
 827
 828         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
 829         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
 830         if ( wxIsSameDouble(adj->value, adj->upper - adj->page_size) )
 831         {
 832             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
 833                     gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
 834         }
 835     }
 836     else // single line
 837     {
 838         // First remove the selection if there is one
 839         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
 840
 841         // This moves the cursor pos to behind the inserted text.
 842         gint len = gtk_editable_get_position(GTK_EDITABLE(m_text));
 843
 844 #if wxUSE_UNICODE
 845         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
 846 #else
 847         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
 848 #endif
 849         if ( !buffer )
 850         {
 851             // what else can we do? at least don't crash...
 852             return;
 853         }
 854
 855         gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
 856
 857         // Bring entry's cursor uptodate.
 858         gtk_editable_set_position( GTK_EDITABLE(m_text), len );
 859     }
 860
 861     m_modified = oldModified;
 862 }
 863
 864 void wxTextCtrl::AppendText( const wxString &text )
 865 {
 866     SetInsertionPointEnd();
 867     WriteText( text );
 868 }
 869
 870 wxString wxTextCtrl::GetLineText( long lineNo ) const
 871 {
 872     if (m_windowStyle & wxTE_MULTILINE)
 873     {
 874         GtkTextIter line;
 875         gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
 876         GtkTextIter end = line;
 877         gtk_text_iter_forward_to_line_end(&end);
 878         gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
 879         wxString result(wxGTK_CONV_BACK(text));
 880         g_free(text);
 881         return result;
 882     }
 883     else
 884     {
 885         if (lineNo == 0) return GetValue();
 886         return wxEmptyString;
 887     }
 888 }
 889
 890 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 891 {
 892   /* If you implement this, don't forget to update the documentation!
 893    * (file docs/latex/wx/text.tex) */
 894     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
 895 }
 896
 897 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 898 {
 899     if ( m_windowStyle & wxTE_MULTILINE )
 900     {
 901         GtkTextIter iter;
 902         gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
 903         if (gtk_text_iter_is_end(&iter))
 904             return false;
 905
 906         *y = gtk_text_iter_get_line(&iter);
 907         *x = gtk_text_iter_get_line_offset(&iter);
 908     }
 909     else // single line control
 910     {
 911         if ( pos <= GTK_ENTRY(m_text)->text_length )
 912         {
 913             *y = 0;
 914             *x = pos;
 915         }
 916         else
 917         {
 918             // index out of bounds
 919             return false;
 920         }
 921     }
 922
 923     return true;
 924 }
 925
 926 long wxTextCtrl::XYToPosition(long x, long y ) const
 927 {
 928     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 929
 930     GtkTextIter iter;
 931     if (y >= gtk_text_buffer_get_line_count (m_buffer))
 932         return -1;
 933
 934     gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
 935     if (x >= gtk_text_iter_get_chars_in_line (&iter))
 936         return -1;
 937
 938     return gtk_text_iter_get_offset(&iter) + x;
 939 }
 940
 941 int wxTextCtrl::GetLineLength(long lineNo) const
 942 {
 943     if (m_windowStyle & wxTE_MULTILINE)
 944     {
 945         int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
 946         if (lineNo > last_line)
 947             return -1;
 948
 949         GtkTextIter iter;
 950         gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
 951         // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
 952         return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
 953     }
 954     else
 955     {
 956         wxString str = GetLineText (lineNo);
 957         return (int) str.Length();
 958     }
 959 }
 960
 961 int wxTextCtrl::GetNumberOfLines() const
 962 {
 963     if ( m_windowStyle & wxTE_MULTILINE )
 964     {
 965         GtkTextIter iter;
 966         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, 0 );
 967
 968         // move forward by one display line until the end is reached
 969         int lineCount = 1;
 970         while ( gtk_text_view_forward_display_line(GTK_TEXT_VIEW(m_text), &iter) )
 971         {
 972             lineCount++;
 973         }
 974
 975         // If the last character in the text buffer is a newline,
 976         // gtk_text_view_forward_display_line() will return false without that
 977         // line being counted. Must add one manually in that case.
 978         GtkTextIter lastCharIter;
 979         gtk_text_buffer_get_iter_at_offset
 980         (
 981             m_buffer,
 982             &lastCharIter,
 983             gtk_text_buffer_get_char_count(m_buffer) - 1
 984         );
 985         gchar lastChar = gtk_text_iter_get_char( &lastCharIter );
 986         if ( lastChar == wxT('\n') )
 987             lineCount++;
 988
 989         return lineCount;
 990     }
 991     else // single line
 992     {
 993         return 1;
 994     }
 995 }
 996
 997 void wxTextCtrl::SetInsertionPoint( long pos )
 998 {
 999     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1000
1001     if ( IsMultiLine() )
1002     {
1003         GtkTextIter iter;
1004         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1005         gtk_text_buffer_place_cursor( m_buffer, &iter );
1006         gtk_text_view_scroll_mark_onscreen
1007         (
1008             GTK_TEXT_VIEW(m_text),
1009             gtk_text_buffer_get_insert( m_buffer )
1010         );
1011     }
1012     else
1013     {
1014         // FIXME: Is the editable's cursor really uptodate without double set_position in GTK2?
1015         gtk_editable_set_position(GTK_EDITABLE(m_text), int(pos));
1016     }
1017 }
1018
1019 void wxTextCtrl::SetInsertionPointEnd()
1020 {
1021     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1022
1023     if (m_windowStyle & wxTE_MULTILINE)
1024     {
1025         GtkTextIter end;
1026         gtk_text_buffer_get_end_iter( m_buffer, &end );
1027         gtk_text_buffer_place_cursor( m_buffer, &end );
1028     }
1029     else
1030     {
1031         gtk_editable_set_position( GTK_EDITABLE(m_text), -1 );
1032     }
1033 }
1034
1035 void wxTextCtrl::SetEditable( bool editable )
1036 {
1037     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1038
1039     if (m_windowStyle & wxTE_MULTILINE)
1040     {
1041         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1042     }
1043     else
1044     {
1045         gtk_editable_set_editable( GTK_EDITABLE(m_text), editable );
1046     }
1047 }
1048
1049 bool wxTextCtrl::Enable( bool enable )
1050 {
1051     if (!wxWindowBase::Enable(enable))
1052     {
1053         // nothing to do
1054         return false;
1055     }
1056
1057     if (m_windowStyle & wxTE_MULTILINE)
1058     {
1059         SetEditable( enable );
1060     }
1061     else
1062     {
1063         gtk_widget_set_sensitive( m_text, enable );
1064     }
1065
1066     return true;
1067 }
1068
1069 // wxGTK-specific: called recursively by Enable,
1070 // to give widgets an oppprtunity to correct their colours after they
1071 // have been changed by Enable
1072 void wxTextCtrl::OnParentEnable( bool enable )
1073 {
1074     // If we have a custom background colour, we use this colour in both
1075     // disabled and enabled mode, or we end up with a different colour under the
1076     // text.
1077     wxColour oldColour = GetBackgroundColour();
1078     if (oldColour.Ok())
1079     {
1080         // Need to set twice or it'll optimize the useful stuff out
1081         if (oldColour == * wxWHITE)
1082             SetBackgroundColour(*wxBLACK);
1083         else
1084             SetBackgroundColour(*wxWHITE);
1085         SetBackgroundColour(oldColour);
1086     }
1087 }
1088
1089 void wxTextCtrl::MarkDirty()
1090 {
1091     m_modified = true;
1092 }
1093
1094 void wxTextCtrl::DiscardEdits()
1095 {
1096     m_modified = false;
1097 }
1098
1099 // ----------------------------------------------------------------------------
1100 // max text length support
1101 // ----------------------------------------------------------------------------
1102
1103 void wxTextCtrl::IgnoreNextTextUpdate()
1104 {
1105     m_ignoreNextUpdate = true;
1106 }
1107
1108 bool wxTextCtrl::IgnoreTextUpdate()
1109 {
1110     if ( m_ignoreNextUpdate )
1111     {
1112         m_ignoreNextUpdate = false;
1113
1114         return true;
1115     }
1116
1117     return false;
1118 }
1119
1120 void wxTextCtrl::SetMaxLength(unsigned long len)
1121 {
1122     if ( !HasFlag(wxTE_MULTILINE) )
1123     {
1124         gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1125
1126         // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1127         // we had tried to enter more text than allowed by max text length and
1128         // the text wasn't really changed
1129         //
1130         // to detect this and generate TEXT_MAXLEN event instead of
1131         // TEXT_CHANGED one in this case we also catch "insert_text" signal
1132         //
1133         // when max len is set to 0 we disconnect our handler as it means that
1134         // we shouldn't check anything any more
1135         if ( len )
1136         {
1137             g_signal_connect (m_text, "insert_text",
1138                               G_CALLBACK (gtk_insert_text_callback), this);
1139         }
1140         else // no checking
1141         {
1142             g_signal_handlers_disconnect_by_func (m_text,
1143                     (gpointer) gtk_insert_text_callback, this);
1144         }
1145     }
1146 }
1147
1148 void wxTextCtrl::SetSelection( long from, long to )
1149 {
1150     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1151
1152     if (from == -1 && to == -1)
1153     {
1154         from = 0;
1155         to = GetValue().Length();
1156     }
1157
1158     if (m_windowStyle & wxTE_MULTILINE)
1159     {
1160         GtkTextIter fromi, toi;
1161         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1162         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1163
1164         gtk_text_buffer_place_cursor( m_buffer, &toi );
1165         gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1166     }
1167     else
1168     {
1169         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1170     }
1171 }
1172
1173 void wxTextCtrl::ShowPosition( long pos )
1174 {
1175     if (m_windowStyle & wxTE_MULTILINE)
1176     {
1177         GtkTextIter iter;
1178         gtk_text_buffer_get_start_iter( m_buffer, &iter );
1179         gtk_text_iter_set_offset( &iter, pos );
1180         GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1181         gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1182     }
1183 }
1184
1185 wxTextCtrlHitTestResult
1186 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1187 {
1188     if ( !IsMultiLine() )
1189     {
1190         // not supported
1191         return wxTE_HT_UNKNOWN;
1192     }
1193
1194     int x, y;
1195     gtk_text_view_window_to_buffer_coords
1196     (
1197         GTK_TEXT_VIEW(m_text),
1198         GTK_TEXT_WINDOW_TEXT,
1199         pt.x, pt.y,
1200         &x, &y
1201     );
1202
1203     GtkTextIter iter;
1204     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1205     if ( pos )
1206         *pos = gtk_text_iter_get_offset(&iter);
1207
1208     return wxTE_HT_ON_TEXT;
1209 }
1210
1211 long wxTextCtrl::GetInsertionPoint() const
1212 {
1213     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1214
1215     if (m_windowStyle & wxTE_MULTILINE)
1216     {
1217         // There is no direct accessor for the cursor, but
1218         // internally, the cursor is the "mark" called
1219         // "insert" in the text view's btree structure.
1220
1221         GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1222         GtkTextIter cursor;
1223         gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1224
1225         return gtk_text_iter_get_offset( &cursor );
1226     }
1227     else
1228     {
1229         return (long) gtk_editable_get_position(GTK_EDITABLE(m_text));
1230     }
1231 }
1232
1233 wxTextPos wxTextCtrl::GetLastPosition() const
1234 {
1235     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1236
1237     int pos = 0;
1238
1239     if (m_windowStyle & wxTE_MULTILINE)
1240     {
1241         GtkTextIter end;
1242         gtk_text_buffer_get_end_iter( m_buffer, &end );
1243
1244         pos = gtk_text_iter_get_offset( &end );
1245     }
1246     else
1247     {
1248         pos = GTK_ENTRY(m_text)->text_length;
1249     }
1250
1251     return (long)pos;
1252 }
1253
1254 void wxTextCtrl::Remove( long from, long to )
1255 {
1256     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1257
1258     if (m_windowStyle & wxTE_MULTILINE)
1259     {
1260         GtkTextIter fromi, toi;
1261         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1262         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1263
1264         gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1265     }
1266     else // single line
1267         gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1268 }
1269
1270 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1271 {
1272     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1273
1274     Remove( from, to );
1275
1276     if (!value.empty())
1277     {
1278         SetInsertionPoint( from );
1279         WriteText( value );
1280     }
1281 }
1282
1283 void wxTextCtrl::Cut()
1284 {
1285     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1286
1287     if (m_windowStyle & wxTE_MULTILINE)
1288         g_signal_emit_by_name (m_text, "cut-clipboard");
1289     else
1290         gtk_editable_cut_clipboard(GTK_EDITABLE(m_text));
1291 }
1292
1293 void wxTextCtrl::Copy()
1294 {
1295     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1296
1297     if (m_windowStyle & wxTE_MULTILINE)
1298         g_signal_emit_by_name (m_text, "copy-clipboard");
1299     else
1300         gtk_editable_copy_clipboard(GTK_EDITABLE(m_text));
1301 }
1302
1303 void wxTextCtrl::Paste()
1304 {
1305     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1306
1307     if (m_windowStyle & wxTE_MULTILINE)
1308         g_signal_emit_by_name (m_text, "paste-clipboard");
1309     else
1310         gtk_editable_paste_clipboard(GTK_EDITABLE(m_text));
1311 }
1312
1313 // Undo/redo
1314 void wxTextCtrl::Undo()
1315 {
1316     // TODO
1317     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1318 }
1319
1320 void wxTextCtrl::Redo()
1321 {
1322     // TODO
1323     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1324 }
1325
1326 bool wxTextCtrl::CanUndo() const
1327 {
1328     // TODO
1329     //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1330     return false;
1331 }
1332
1333 bool wxTextCtrl::CanRedo() const
1334 {
1335     // TODO
1336     //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1337     return false;
1338 }
1339
1340 // If the return values from and to are the same, there is no
1341 // selection.
1342 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1343 {
1344     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1345
1346     gint from = -1;
1347     gint to = -1;
1348     bool haveSelection = false;
1349
1350      if (m_windowStyle & wxTE_MULTILINE)
1351      {
1352          GtkTextIter ifrom, ito;
1353          if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1354          {
1355              haveSelection = true;
1356              from = gtk_text_iter_get_offset(&ifrom);
1357              to = gtk_text_iter_get_offset(&ito);
1358          }
1359      }
1360      else  // not multi-line
1361      {
1362          if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1363                                                  &from, &to) )
1364          {
1365              haveSelection = true;
1366          }
1367      }
1368
1369      if (! haveSelection )
1370           from = to = GetInsertionPoint();
1371
1372      if ( from > to )
1373      {
1374          // exchange them to be compatible with wxMSW
1375          gint tmp = from;
1376          from = to;
1377          to = tmp;
1378      }
1379
1380     if ( fromOut )
1381         *fromOut = from;
1382     if ( toOut )
1383         *toOut = to;
1384 }
1385
1386
1387 bool wxTextCtrl::IsEditable() const
1388 {
1389     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1390
1391     if (m_windowStyle & wxTE_MULTILINE)
1392     {
1393         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1394     }
1395     else
1396     {
1397         return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1398     }
1399 }
1400
1401 bool wxTextCtrl::IsModified() const
1402 {
1403     return m_modified;
1404 }
1405
1406 void wxTextCtrl::Clear()
1407 {
1408     SetValue( wxEmptyString );
1409 }
1410
1411 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1412 {
1413     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1414
1415     if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1416     {
1417         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1418         event.SetEventObject(this);
1419         event.SetString(GetValue());
1420         if (GetEventHandler()->ProcessEvent(event)) return;
1421     }
1422
1423     if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1424     {
1425         // This will invoke the dialog default action, such
1426         // as the clicking the default button.
1427
1428         wxWindow *top_frame = m_parent;
1429         while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1430             top_frame = top_frame->GetParent();
1431
1432         if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1433         {
1434             GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1435
1436             if (window->default_widget)
1437             {
1438                 gtk_widget_activate (window->default_widget);
1439                 return;
1440             }
1441         }
1442     }
1443
1444     key_event.Skip();
1445 }
1446
1447 GtkWidget* wxTextCtrl::GetConnectWidget()
1448 {
1449     return GTK_WIDGET(m_text);
1450 }
1451
1452 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1453 {
1454     if (m_windowStyle & wxTE_MULTILINE)
1455     {
1456         return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT );  // pure guesswork
1457     }
1458     else
1459     {
1460         return (window == GTK_ENTRY(m_text)->text_area);
1461     }
1462 }
1463
1464 // the font will change for subsequent text insertiongs
1465 bool wxTextCtrl::SetFont( const wxFont &font )
1466 {
1467     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1468
1469     if ( !wxTextCtrlBase::SetFont(font) )
1470     {
1471         // font didn't change, nothing to do
1472         return false;
1473     }
1474
1475     if ( m_windowStyle & wxTE_MULTILINE )
1476     {
1477         SetUpdateFont(true);
1478
1479         m_defaultStyle.SetFont(font);
1480
1481         ChangeFontGlobally();
1482     }
1483
1484     return true;
1485 }
1486
1487 void wxTextCtrl::ChangeFontGlobally()
1488 {
1489     // this method is very inefficient and hence should be called as rarely as
1490     // possible!
1491     //
1492     // TODO: it can be implemented much more efficiently for GTK2
1493     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1494                   _T("shouldn't be called for single line controls") );
1495
1496     wxString value = GetValue();
1497     if ( !value.empty() )
1498     {
1499         SetUpdateFont(false);
1500
1501         Clear();
1502         AppendText(value);
1503     }
1504 }
1505
1506 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1507 {
1508     if ( !wxControl::SetForegroundColour(colour) )
1509         return false;
1510
1511     // update default fg colour too
1512     m_defaultStyle.SetTextColour(colour);
1513
1514     return true;
1515 }
1516
1517 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1518 {
1519     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1520
1521     if ( !wxControl::SetBackgroundColour( colour ) )
1522         return false;
1523
1524     if (!m_backgroundColour.Ok())
1525         return false;
1526
1527     // change active background color too
1528     m_defaultStyle.SetBackgroundColour( colour );
1529
1530     return true;
1531 }
1532
1533 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1534 {
1535     if ( m_windowStyle & wxTE_MULTILINE )
1536     {
1537         if ( style.IsDefault() )
1538         {
1539             // nothing to do
1540             return true;
1541         }
1542
1543         gint l = gtk_text_buffer_get_char_count( m_buffer );
1544
1545         wxCHECK_MSG( start >= 0 && end <= l, false,
1546                      _T("invalid range in wxTextCtrl::SetStyle") );
1547
1548         GtkTextIter starti, endi;
1549         gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1550         gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1551
1552         // use the attributes from style which are set in it and fall back
1553         // first to the default style and then to the text control default
1554         // colours for the others
1555         wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1556
1557         wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1558
1559         return true;
1560     }
1561
1562     // else single line
1563     // cannot do this for GTK+'s Entry widget
1564     return false;
1565 }
1566
1567 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1568 {
1569     gtk_widget_modify_style(m_text, style);
1570 }
1571
1572 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1573 {
1574     Cut();
1575 }
1576
1577 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1578 {
1579     Copy();
1580 }
1581
1582 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1583 {
1584     Paste();
1585 }
1586
1587 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1588 {
1589     Undo();
1590 }
1591
1592 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1593 {
1594     Redo();
1595 }
1596
1597 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1598 {
1599     event.Enable( CanCut() );
1600 }
1601
1602 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1603 {
1604     event.Enable( CanCopy() );
1605 }
1606
1607 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1608 {
1609     event.Enable( CanPaste() );
1610 }
1611
1612 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1613 {
1614     event.Enable( CanUndo() );
1615 }
1616
1617 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1618 {
1619     event.Enable( CanRedo() );
1620 }
1621
1622 void wxTextCtrl::OnInternalIdle()
1623 {
1624     wxCursor cursor = m_cursor;
1625     if (g_globalCursor.Ok()) cursor = g_globalCursor;
1626
1627     if (g_delayedFocus == this)
1628     {
1629         if (GTK_WIDGET_REALIZED(m_widget))
1630         {
1631             gtk_widget_grab_focus( m_widget );
1632             g_delayedFocus = NULL;
1633         }
1634     }
1635
1636     if (wxUpdateUIEvent::CanUpdate(this))
1637         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1638 }
1639
1640 wxSize wxTextCtrl::DoGetBestSize() const
1641 {
1642     // FIXME should be different for multi-line controls...
1643     wxSize ret( wxControl::DoGetBestSize() );
1644     wxSize best(80, ret.y);
1645     CacheBestSize(best);
1646     return best;
1647 }
1648
1649 // ----------------------------------------------------------------------------
1650 // freeze/thaw
1651 // ----------------------------------------------------------------------------
1652
1653 void wxTextCtrl::Freeze()
1654 {
1655     if ( HasFlag(wxTE_MULTILINE) )
1656     {
1657         if ( !m_frozenness++ )
1658         {
1659             // freeze textview updates and remove buffer
1660             g_signal_connect (m_text, "expose_event",
1661                               G_CALLBACK (gtk_text_exposed_callback), this);
1662             g_signal_connect (m_widget, "expose_event",
1663                               G_CALLBACK (gtk_text_exposed_callback), this);
1664             gtk_widget_set_sensitive(m_widget, false);
1665             g_object_ref(m_buffer);
1666             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
1667         }
1668     }
1669 }
1670
1671 void wxTextCtrl::Thaw()
1672 {
1673     if ( HasFlag(wxTE_MULTILINE) )
1674     {
1675         wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
1676
1677         if ( !--m_frozenness )
1678         {
1679             // Reattach buffer and thaw textview updates
1680             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1681             g_object_unref(m_buffer);
1682             gtk_widget_set_sensitive(m_widget, true);
1683             g_signal_handlers_disconnect_by_func (m_widget,
1684                     (gpointer) gtk_text_exposed_callback, this);
1685             g_signal_handlers_disconnect_by_func (m_text,
1686                     (gpointer) gtk_text_exposed_callback, this);
1687         }
1688     }
1689 }
1690
1691 // ----------------------------------------------------------------------------
1692 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
1693 // ----------------------------------------------------------------------------
1694
1695 // FIXME: when dragging on a link the sample gets an "Unknown event".
1696 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
1697 // a buggy sample, or something else
1698 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
1699 {
1700     event.Skip();
1701     if(!(m_windowStyle & wxTE_AUTO_URL))
1702         return;
1703
1704     gint x, y;
1705     GtkTextIter start, end;
1706     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
1707                                                 "wxUrl");
1708
1709     gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
1710                                           event.GetX(), event.GetY(), &x, &y);
1711
1712     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
1713     if (!gtk_text_iter_has_tag(&end, tag))
1714     {
1715         gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1716                               GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
1717         return;
1718     }
1719
1720     gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1721                           GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
1722
1723     start = end;
1724     if(!gtk_text_iter_begins_tag(&start, tag))
1725         gtk_text_iter_backward_to_tag_toggle(&start, tag);
1726     if(!gtk_text_iter_ends_tag(&end, tag))
1727         gtk_text_iter_forward_to_tag_toggle(&end, tag);
1728
1729     // Native context menu is probably not desired on an URL.
1730     // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
1731     if(event.GetEventType() == wxEVT_RIGHT_DOWN)
1732         event.Skip(false);
1733
1734     wxTextUrlEvent url_event(m_windowId, event,
1735                              gtk_text_iter_get_offset(&start),
1736                              gtk_text_iter_get_offset(&end));
1737
1738     InitCommandEvent(url_event);
1739     // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
1740     //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
1741     GetEventHandler()->ProcessEvent(url_event);
1742 }
1743
1744 // static
1745 wxVisualAttributes
1746 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1747 {
1748     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1749 }