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
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  11 #pragma implementation "textctrl.h"
  12 #endif
  13
  14 // For compilers that support precompilation, includes "wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #include "wx/textctrl.h"
  18 #include "wx/utils.h"
  19 #include "wx/intl.h"
  20 #include "wx/log.h"
  21 #include "wx/settings.h"
  22 #include "wx/panel.h"
  23 #include "wx/strconv.h"
  24 #include "wx/fontutil.h"        // for wxNativeFontInfo (GetNativeFontInfo())
  25
  26 #include <sys/types.h>
  27 #include <sys/stat.h>
  28 #include <ctype.h>
  29 #include "wx/math.h"
  30
  31 #include "wx/gtk/private.h"
  32 #include <gdk/gdkkeysyms.h>
  33
  34 //-----------------------------------------------------------------------------
  35 // idle system
  36 //-----------------------------------------------------------------------------
  37
  38 extern void wxapp_install_idle_handler();
  39 extern bool g_isIdle;
  40
  41 //-----------------------------------------------------------------------------
  42 // data
  43 //-----------------------------------------------------------------------------
  44
  45 extern wxCursor   g_globalCursor;
  46 extern wxWindowGTK *g_delayedFocus;
  47
  48 // ----------------------------------------------------------------------------
  49 // helpers
  50 // ----------------------------------------------------------------------------
  51
  52 #ifdef __WXGTK20__
  53 extern "C" {
  54 static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
  55                              GtkTextTag *tag,
  56                              GtkTextIter *start,
  57                              GtkTextIter *end,
  58                              gpointer user_data)
  59 {
  60     gchar *name;
  61     g_object_get (tag, "name", &name, NULL);
  62
  63     if (!name || strncmp(name, "WX", 2)) // anonymous tag or not starting with "WX"
  64         g_signal_stop_emission_by_name(buffer, "remove_tag");
  65
  66     g_free(name);
  67 }
  68 }
  69
  70 extern "C" {
  71 static void wxGtkTextApplyTagsFromAttr(GtkTextBuffer *text_buffer,
  72                                        const wxTextAttr& attr,
  73                                        GtkTextIter *start,
  74                                        GtkTextIter *end)
  75 {
  76     static gchar buf[1024];
  77     GtkTextTag *tag;
  78
  79     gulong remove_handler_id = g_signal_connect( text_buffer, "remove_tag",
  80                                                  G_CALLBACK(wxGtkOnRemoveTag), NULL);
  81     gtk_text_buffer_remove_all_tags(text_buffer, start, end);
  82     g_signal_handler_disconnect( text_buffer, remove_handler_id );
  83
  84     if (attr.HasFont())
  85     {
  86         char *font_string;
  87         PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
  88         font_string = pango_font_description_to_string(font_description);
  89         g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string);
  90         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
  91                                          buf );
  92         if (!tag)
  93             tag = gtk_text_buffer_create_tag( text_buffer, buf,
  94                                               "font-desc", font_description,
  95                                               NULL );
  96         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
  97         g_free (font_string);
  98     }
  99
 100     if (attr.HasTextColour())
 101     {
 102         GdkColor *colFg = attr.GetTextColour().GetColor();
 103         g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
 104                    colFg->red, colFg->green, colFg->blue);
 105         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 106                                          buf );
 107         if (!tag)
 108             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 109                                               "foreground-gdk", colFg, NULL );
 110         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 111     }
 112
 113     if (attr.HasBackgroundColour())
 114     {
 115         GdkColor *colBg = attr.GetBackgroundColour().GetColor();
 116         g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
 117                    colBg->red, colBg->green, colBg->blue);
 118         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 119                                          buf );
 120         if (!tag)
 121             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 122                                               "background-gdk", colBg, NULL );
 123         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 124     }
 125 }
 126 }
 127
 128 extern "C" {
 129 static void wxGtkTextInsert(GtkWidget *text,
 130                             GtkTextBuffer *text_buffer,
 131                             const wxTextAttr& attr,
 132                             wxCharBuffer buffer)
 133
 134 {
 135     gint start_offset;
 136     GtkTextIter iter, start;
 137
 138     gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
 139                                      gtk_text_buffer_get_insert (text_buffer) );
 140     start_offset = gtk_text_iter_get_offset (&iter);
 141     gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
 142
 143     gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
 144
 145     wxGtkTextApplyTagsFromAttr(text_buffer, attr, &start, &iter);
 146 }
 147 }
 148 #else
 149 extern "C" {
 150 static void wxGtkTextInsert(GtkWidget *text,
 151                             const wxTextAttr& attr,
 152                             const char *txt,
 153                             size_t len)
 154 {
 155     GdkFont *font = attr.HasFont() ? attr.GetFont().GetInternalFont()
 156                                    : NULL;
 157
 158     GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
 159                                            : NULL;
 160
 161     GdkColor *colBg = attr.HasBackgroundColour()
 162                         ? attr.GetBackgroundColour().GetColor()
 163                         : NULL;
 164
 165     gtk_text_insert( GTK_TEXT(text), font, colFg, colBg, txt, len );
 166 }
 167 }
 168 #endif // GTK 1.x
 169
 170 // ----------------------------------------------------------------------------
 171 // "insert_text" for GtkEntry
 172 // ----------------------------------------------------------------------------
 173
 174 extern "C" {
 175 static void
 176 gtk_insert_text_callback(GtkEditable *editable,
 177                          const gchar *new_text,
 178                          gint new_text_length,
 179                          gint *position,
 180                          wxTextCtrl *win)
 181 {
 182     if (g_isIdle)
 183         wxapp_install_idle_handler();
 184
 185     // we should only be called if we have a max len limit at all
 186     GtkEntry *entry = GTK_ENTRY (editable);
 187
 188     wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
 189
 190     // check that we don't overflow the max length limit
 191     //
 192     // FIXME: this doesn't work when we paste a string which is going to be
 193     //        truncated
 194     if ( entry->text_length == entry->text_max_length )
 195     {
 196         // we don't need to run the base class version at all
 197         gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text");
 198
 199         // remember that the next changed signal is to be ignored to avoid
 200         // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
 201         win->IgnoreNextTextUpdate();
 202
 203         // and generate the correct one ourselves
 204         wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
 205         event.SetEventObject(win);
 206         event.SetString(win->GetValue());
 207         win->GetEventHandler()->ProcessEvent( event );
 208     }
 209 }
 210 }
 211
 212 #ifdef __WXGTK20__
 213 // Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
 214
 215 extern "C" {
 216 static void
 217 au_apply_tag_callback(GtkTextBuffer *buffer,
 218                       GtkTextTag *tag,
 219                       GtkTextIter *start,
 220                       GtkTextIter *end,
 221                       gpointer textctrl)
 222 {
 223     if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
 224         g_signal_stop_emission_by_name(buffer, "apply_tag");
 225 }
 226 }
 227
 228 //-----------------------------------------------------------------------------
 229 //  GtkTextCharPredicates for gtk_text_iter_*_find_char
 230 //-----------------------------------------------------------------------------
 231
 232 extern "C" {
 233 static gboolean
 234 pred_whitespace (gunichar ch, gpointer user_data)
 235 {
 236     return g_unichar_isspace(ch);
 237 }
 238 }
 239
 240 extern "C" {
 241 static gboolean
 242 pred_non_whitespace (gunichar ch, gpointer user_data)
 243 {
 244     return !g_unichar_isspace(ch);
 245 }
 246 }
 247
 248 extern "C" {
 249 static gboolean
 250 pred_nonpunct (gunichar ch, gpointer user_data)
 251 {
 252     return !g_unichar_ispunct(ch);
 253 }
 254 }
 255
 256 extern "C" {
 257 static gboolean
 258 pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
 259 {
 260     return !g_unichar_ispunct(ch) || ch == '/';
 261 }
 262 }
 263
 264 //-----------------------------------------------------------------------------
 265 //  Check for links between s and e and correct tags as necessary
 266 //-----------------------------------------------------------------------------
 267
 268 // This function should be made match better while being efficient at one point.
 269 // Most probably with a row of regular expressions.
 270 extern "C" {
 271 static void
 272 au_check_word( GtkTextIter *s, GtkTextIter *e )
 273 {
 274     static const char *URIPrefixes[] =
 275     {
 276         "http://",
 277         "ftp://",
 278         "www.",
 279         "ftp.",
 280         "mailto://",
 281         "https://",
 282         "file://",
 283         "nntp://",
 284         "news://",
 285         "telnet://",
 286         "mms://",
 287         "gopher://",
 288         "prospero://",
 289         "wais://",
 290     };
 291
 292     GtkTextIter start = *s, end = *e;
 293     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 294
 295     // Get our special link tag
 296     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 297
 298     // Get rid of punctuation from beginning and end.
 299     // Might want to move this to au_check_range if an improved link checking doesn't
 300     // use some intelligent punctuation checking itself (beware of undesired iter modifications).
 301     if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
 302         gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
 303
 304     gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
 305     gtk_text_iter_forward_char(&end);
 306
 307     gchar* text = gtk_text_iter_get_text( &start, &end );
 308     size_t len = strlen(text), prefix_len;
 309     size_t n;
 310
 311     for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
 312     {
 313         prefix_len = strlen(URIPrefixes[n]);
 314         if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
 315             break;
 316     }
 317
 318     if(n < WXSIZEOF(URIPrefixes))
 319     {
 320         gulong signal_id = g_signal_handler_find(buffer,
 321                                                  (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
 322                                                  0, 0, NULL,
 323                                                  (gpointer)au_apply_tag_callback, NULL);
 324
 325         g_signal_handler_block(buffer, signal_id);
 326         gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
 327         g_signal_handler_unblock(buffer, signal_id);
 328     }
 329 }
 330 }
 331
 332 extern "C" {
 333 static void
 334 au_check_range(GtkTextIter *s,
 335                GtkTextIter *range_end)
 336 {
 337     GtkTextIter range_start = *s;
 338     GtkTextIter word_end;
 339     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 340     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 341
 342     gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
 343
 344     if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
 345         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 346
 347     while(!gtk_text_iter_equal(&range_start, range_end))
 348     {
 349         word_end = range_start;
 350         gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
 351
 352         // Now we should have a word delimited by range_start and word_end, correct link tags
 353         au_check_word(&range_start, &word_end);
 354
 355         range_start = word_end;
 356         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 357     }
 358 }
 359 }
 360
 361 //-----------------------------------------------------------------------------
 362 //  "insert-text" for GtkTextBuffer
 363 //-----------------------------------------------------------------------------
 364
 365 extern "C" {
 366 static void
 367 au_insert_text_callback(GtkTextBuffer *buffer,
 368                         GtkTextIter *end,
 369                         gchar *text,
 370                         gint len,
 371                         wxTextCtrl *win)
 372 {
 373     if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 374         return;
 375
 376     GtkTextIter start = *end;
 377     gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
 378
 379     GtkTextIter line_start = start;
 380     GtkTextIter line_end = *end;
 381     GtkTextIter words_start = start;
 382     GtkTextIter words_end = *end;
 383
 384     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
 385     gtk_text_iter_forward_to_line_end(&line_end);
 386     gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
 387     gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
 388
 389     au_check_range(&words_start, &words_end);
 390 }
 391 }
 392
 393 //-----------------------------------------------------------------------------
 394 //  "delete-range" for GtkTextBuffer
 395 //-----------------------------------------------------------------------------
 396
 397 extern "C" {
 398 static void
 399 au_delete_range_callback(GtkTextBuffer *buffer,
 400                          GtkTextIter *start,
 401                          GtkTextIter *end,
 402                          wxTextCtrl *win)
 403 {
 404     if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 405         return;
 406
 407     GtkTextIter line_start = *start, line_end = *end;
 408
 409     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
 410     gtk_text_iter_forward_to_line_end(&line_end);
 411     gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
 412     gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
 413
 414     au_check_range(start, end);
 415 }
 416 }
 417
 418
 419 #endif
 420
 421 //-----------------------------------------------------------------------------
 422 //  "changed"
 423 //-----------------------------------------------------------------------------
 424
 425 extern "C" {
 426 static void
 427 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
 428 {
 429     if ( win->IgnoreTextUpdate() )
 430         return;
 431
 432     if (!win->m_hasVMT) return;
 433
 434     if (g_isIdle)
 435         wxapp_install_idle_handler();
 436
 437     win->SetModified();
 438 #ifndef __WXGTK20__
 439     win->UpdateFontIfNeeded();
 440 #endif // !__WXGTK20__
 441
 442     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
 443     event.SetEventObject( win );
 444     win->GetEventHandler()->ProcessEvent( event );
 445 }
 446 }
 447
 448 //-----------------------------------------------------------------------------
 449 // "expose_event" from scrolled window and textview
 450 //-----------------------------------------------------------------------------
 451
 452 #ifdef __WXGTK20__
 453 extern "C" {
 454 static gboolean
 455 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
 456 {
 457     return TRUE;
 458 }
 459 }
 460 #endif
 461
 462 //-----------------------------------------------------------------------------
 463 // "changed" from vertical scrollbar
 464 //-----------------------------------------------------------------------------
 465
 466 #ifndef __WXGTK20__
 467 extern "C" {
 468 static void
 469 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
 470 {
 471     if (!win->m_hasVMT) return;
 472
 473     if (g_isIdle)
 474         wxapp_install_idle_handler();
 475
 476     win->CalculateScrollbar();
 477 }
 478 }
 479 #endif
 480
 481 // ----------------------------------------------------------------------------
 482 // redraw callback for multiline text
 483 // ----------------------------------------------------------------------------
 484
 485 #ifndef __WXGTK20__
 486
 487 // redrawing a GtkText from inside a wxYield() call results in crashes (the
 488 // text sample shows it in its "Add lines" command which shows wxProgressDialog
 489 // which implicitly calls wxYield()) so we override GtkText::draw() and simply
 490 // don't do anything if we're inside wxYield()
 491
 492 extern bool wxIsInsideYield;
 493
 494 extern "C" {
 495     typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
 496 }
 497
 498 static GtkDrawCallback gs_gtk_text_draw = NULL;
 499
 500 extern "C" {
 501 static void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
 502 {
 503     if ( !wxIsInsideYield )
 504     {
 505         wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
 506                      _T("infinite recursion in wxgtk_text_draw aborted") );
 507
 508         gs_gtk_text_draw(widget, rect);
 509     }
 510 }
 511 }
 512
 513 #endif // __WXGTK20__
 514
 515 //-----------------------------------------------------------------------------
 516 //  wxTextCtrl
 517 //-----------------------------------------------------------------------------
 518
 519 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
 520
 521 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 522     EVT_CHAR(wxTextCtrl::OnChar)
 523
 524     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 525     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 526     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 527     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 528     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 529
 530     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 531     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 532     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 533     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 534     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 535
 536 #ifdef __WXGTK20__
 537     // wxTE_AUTO_URL wxTextUrl support. Currently only creates
 538     // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
 539     EVT_MOTION      (wxTextCtrl::OnUrlMouseEvent)
 540     EVT_LEFT_DOWN   (wxTextCtrl::OnUrlMouseEvent)
 541     EVT_LEFT_UP     (wxTextCtrl::OnUrlMouseEvent)
 542     EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
 543     EVT_RIGHT_DOWN  (wxTextCtrl::OnUrlMouseEvent)
 544     EVT_RIGHT_UP    (wxTextCtrl::OnUrlMouseEvent)
 545     EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
 546 #endif
 547 END_EVENT_TABLE()
 548
 549 void wxTextCtrl::Init()
 550 {
 551     m_ignoreNextUpdate =
 552     m_modified = false;
 553     SetUpdateFont(false);
 554     m_text =
 555     m_vScrollbar = (GtkWidget *)NULL;
 556 #ifdef __WXGTK20__
 557     m_frozenness = 0;
 558     m_gdkHandCursor = NULL;
 559     m_gdkXTermCursor = NULL;
 560 #endif
 561 }
 562
 563 wxTextCtrl::~wxTextCtrl()
 564 {
 565 #ifdef __WXGTK20__
 566     if(m_gdkHandCursor)
 567         gdk_cursor_unref(m_gdkHandCursor);
 568     if(m_gdkXTermCursor)
 569         gdk_cursor_unref(m_gdkXTermCursor);
 570 #endif
 571 }
 572
 573 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 574                         wxWindowID id,
 575                         const wxString &value,
 576                         const wxPoint &pos,
 577                         const wxSize &size,
 578                         long style,
 579                         const wxValidator& validator,
 580                         const wxString &name )
 581 {
 582     Init();
 583
 584     Create( parent, id, value, pos, size, style, validator, name );
 585 }
 586
 587 bool wxTextCtrl::Create( wxWindow *parent,
 588                          wxWindowID id,
 589                          const wxString &value,
 590                          const wxPoint &pos,
 591                          const wxSize &size,
 592                          long style,
 593                          const wxValidator& validator,
 594                          const wxString &name )
 595 {
 596     m_needParent = true;
 597     m_acceptsFocus = true;
 598
 599     if (!PreCreation( parent, pos, size ) ||
 600         !CreateBase( parent, id, pos, size, style, validator, name ))
 601     {
 602         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 603         return false;
 604     }
 605
 606
 607     m_vScrollbarVisible = false;
 608
 609     bool multi_line = (style & wxTE_MULTILINE) != 0;
 610
 611     if (multi_line)
 612     {
 613 #ifdef __WXGTK20__
 614         // Create view
 615         m_text = gtk_text_view_new();
 616
 617         m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 618
 619         // create scrolled window
 620         m_widget = gtk_scrolled_window_new( NULL, NULL );
 621         gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
 622                                         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 623
 624         // Insert view into scrolled window
 625         gtk_container_add( GTK_CONTAINER(m_widget), m_text );
 626
 627         // translate wx wrapping style to GTK+
 628         GtkWrapMode wrap;
 629         if ( HasFlag( wxTE_DONTWRAP ) )
 630             wrap = GTK_WRAP_NONE;
 631         else if ( HasFlag( wxTE_CHARWRAP ) )
 632             wrap = GTK_WRAP_CHAR;
 633         else if ( HasFlag( wxTE_WORDWRAP ) )
 634             wrap = GTK_WRAP_WORD;
 635         else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
 636         {
 637             // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
 638 #ifdef __WXGTK24__
 639             if ( !gtk_check_version(2,4,0) )
 640             {
 641                 wrap = GTK_WRAP_WORD_CHAR;
 642             }
 643             else
 644 #endif
 645             wrap = GTK_WRAP_WORD;
 646         }
 647
 648         gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
 649
 650         if (!HasFlag(wxNO_BORDER))
 651             gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
 652
 653         gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
 654
 655         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 656 #else // GTK+ 1
 657         // create our control ...
 658         m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
 659
 660         // ... and put into the upper left hand corner of the table
 661         bool bHasHScrollbar = false;
 662         m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
 663         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 664         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 665                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 666                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 667                        0, 0);
 668
 669         // always wrap words
 670         gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
 671
 672         // finally, put the vertical scrollbar in the upper right corner
 673         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 674         GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
 675         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 676                      GTK_FILL,
 677                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 678                      0, 0);
 679 #endif // GTK+ 2/1
 680     }
 681     else
 682     {
 683         // a single-line text control: no need for scrollbars
 684         m_widget =
 685         m_text = gtk_entry_new();
 686
 687 #ifdef __WXGTK20__
 688         if (style & wxNO_BORDER)
 689             g_object_set( GTK_ENTRY(m_text), "has-frame", FALSE, NULL );
 690 #endif
 691     }
 692
 693     m_parent->DoAddChild( this );
 694
 695     m_focusWidget = m_text;
 696
 697     PostCreation(size);
 698
 699     if (multi_line)
 700         gtk_widget_show(m_text);
 701
 702 #ifndef __WXGTK20__
 703     if (multi_line)
 704     {
 705         gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
 706           (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
 707
 708         // only initialize gs_gtk_text_draw once, starting from the next the
 709         // klass::draw will already be wxgtk_text_draw
 710         if ( !gs_gtk_text_draw )
 711         {
 712             GtkDrawCallback&
 713                 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
 714
 715             gs_gtk_text_draw = draw;
 716
 717             draw = wxgtk_text_draw;
 718         }
 719     }
 720 #endif // GTK+ 1.x
 721
 722     if (!value.empty())
 723     {
 724 #ifdef __WXGTK20__
 725         SetValue( value );
 726 #else
 727
 728 #if !GTK_CHECK_VERSION(1, 2, 0)
 729         // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
 730         // gtk_editable_insert_text()
 731         gtk_widget_realize(m_text);
 732 #endif // GTK 1.0
 733
 734         gint tmp = 0;
 735 #if wxUSE_UNICODE
 736         wxWX2MBbuf val = value.mbc_str();
 737         gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
 738 #else
 739         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 740 #endif
 741
 742         if (multi_line)
 743         {
 744             // Bring editable's cursor uptodate. Bug in GTK.
 745             SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
 746         }
 747
 748 #endif
 749     }
 750
 751     if (style & wxTE_PASSWORD)
 752     {
 753         if (!multi_line)
 754             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 755     }
 756
 757     if (style & wxTE_READONLY)
 758     {
 759         if (!multi_line)
 760             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 761 #ifdef __WXGTK20__
 762         else
 763             gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
 764 #else
 765     }
 766     else
 767     {
 768         if (multi_line)
 769             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 770 #endif
 771     }
 772
 773 #ifdef __WXGTK20__
 774     if (multi_line)
 775     {
 776         if (style & wxTE_RIGHT)
 777             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
 778         else if (style & wxTE_CENTRE)
 779             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
 780         // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
 781     }
 782     else
 783     {
 784 #ifdef __WXGTK24__
 785         // gtk_entry_set_alignment was introduced in gtk+-2.3.5
 786         if (!gtk_check_version(2,4,0))
 787         {
 788             if (style & wxTE_RIGHT)
 789                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
 790             else if (style & wxTE_CENTRE)
 791                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
 792         }
 793 #endif
 794     }
 795 #endif // __WXGTK20__
 796
 797     // We want to be notified about text changes.
 798 #ifdef __WXGTK20__
 799     if (multi_line)
 800     {
 801         g_signal_connect( G_OBJECT(m_buffer), "changed",
 802             GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 803
 804         // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
 805         if (style & wxTE_AUTO_URL)
 806         {
 807             GtkTextIter start, end;
 808             m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
 809             m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
 810
 811             // We create our wxUrl tag here for slight efficiency gain - we
 812             // don't have to check for the tag existance in callbacks,
 813             // hereby it's guaranteed to exist.
 814             gtk_text_buffer_create_tag(m_buffer, "wxUrl",
 815                                        "foreground", "blue",
 816                                        "underline", PANGO_UNDERLINE_SINGLE,
 817                                        NULL);
 818
 819             // Check for URLs after each text change
 820             g_signal_connect_after( G_OBJECT(m_buffer), "insert_text",
 821                 GTK_SIGNAL_FUNC(au_insert_text_callback), (gpointer)this);
 822             g_signal_connect_after( G_OBJECT(m_buffer), "delete_range",
 823                 GTK_SIGNAL_FUNC(au_delete_range_callback), (gpointer)this);
 824
 825             // Block all wxUrl tag applying unless we do it ourselves, in which case we
 826             // block this callback temporarily. This takes care of gtk+ internal
 827             // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
 828             // which is undesired because only a part of the URL might be copied.
 829             // The insert-text signal emitted inside it will take care of newly formed
 830             // or wholly copied URLs.
 831             g_signal_connect( G_OBJECT(m_buffer), "apply_tag",
 832                 GTK_SIGNAL_FUNC(au_apply_tag_callback), NULL);
 833
 834             // Check for URLs in the initial string passed to Create
 835             gtk_text_buffer_get_start_iter(m_buffer, &start);
 836             gtk_text_buffer_get_end_iter(m_buffer, &end);
 837             au_check_range(&start, &end);
 838         }
 839     }
 840     else
 841 #endif
 842
 843     {
 844         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 845             GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 846     }
 847
 848     m_cursor = wxCursor( wxCURSOR_IBEAM );
 849
 850     wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
 851     SetDefaultStyle( attrDef );
 852
 853     return true;
 854 }
 855
 856
 857 void wxTextCtrl::CalculateScrollbar()
 858 {
 859 #ifndef __WXGTK20__
 860     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 861
 862     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 863
 864     if (adj->upper - adj->page_size < 0.8)
 865     {
 866         if (m_vScrollbarVisible)
 867         {
 868             gtk_widget_hide( m_vScrollbar );
 869             m_vScrollbarVisible = false;
 870         }
 871     }
 872     else
 873     {
 874         if (!m_vScrollbarVisible)
 875         {
 876             gtk_widget_show( m_vScrollbar );
 877             m_vScrollbarVisible = true;
 878         }
 879     }
 880 #endif
 881 }
 882
 883 wxString wxTextCtrl::GetValue() const
 884 {
 885     wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
 886
 887     wxString tmp;
 888     if (m_windowStyle & wxTE_MULTILINE)
 889     {
 890 #ifdef __WXGTK20__
 891         GtkTextIter start;
 892         gtk_text_buffer_get_start_iter( m_buffer, &start );
 893         GtkTextIter end;
 894         gtk_text_buffer_get_end_iter( m_buffer, &end );
 895         gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
 896
 897 #if wxUSE_UNICODE
 898         wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
 899 #else
 900         wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
 901 #endif
 902         if ( buffer )
 903             tmp = buffer;
 904
 905         g_free( text );
 906 #else
 907         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 908         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 909         tmp = text;
 910         g_free( text );
 911 #endif
 912     }
 913     else
 914     {
 915         tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
 916     }
 917
 918     return tmp;
 919 }
 920
 921 void wxTextCtrl::SetValue( const wxString &value )
 922 {
 923     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 924
 925     if (m_windowStyle & wxTE_MULTILINE)
 926     {
 927 #ifdef __WXGTK20__
 928
 929 #if wxUSE_UNICODE
 930         wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
 931 #else
 932         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
 933 #endif
 934         if (gtk_text_buffer_get_char_count(m_buffer) != 0)
 935             IgnoreNextTextUpdate();
 936
 937         if ( !buffer )
 938         {
 939             // what else can we do? at least don't crash...
 940             return;
 941         }
 942
 943         gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
 944
 945 #else
 946         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 947         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 948         len = 0;
 949         gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
 950 #endif
 951     }
 952     else
 953     {
 954         gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
 955     }
 956
 957     // GRG, Jun/2000: Changed this after a lot of discussion in
 958     //   the lists. wxWidgets 2.2 will have a set of flags to
 959     //   customize this behaviour.
 960     SetInsertionPoint(0);
 961
 962     m_modified = false;
 963 }
 964
 965 void wxTextCtrl::WriteText( const wxString &text )
 966 {
 967     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 968
 969     if ( text.empty() )
 970         return;
 971
 972     // gtk_text_changed_callback() will set m_modified to true but m_modified
 973     // shouldn't be changed by the program writing to the text control itself,
 974     // so save the old value and restore when we're done
 975     bool oldModified = m_modified;
 976
 977     if ( m_windowStyle & wxTE_MULTILINE )
 978     {
 979 #ifdef __WXGTK20__
 980
 981 #if wxUSE_UNICODE
 982         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
 983 #else
 984         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
 985 #endif
 986         if ( !buffer )
 987         {
 988             // what else can we do? at least don't crash...
 989             return;
 990         }
 991
 992         // TODO: Call whatever is needed to delete the selection.
 993         wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
 994
 995         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
 996         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
 997         if ( adj->value == adj->upper - adj->page_size )
 998         {
 999             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
1000                     gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
1001         }
1002 #else // GTK 1.x
1003         // After cursor movements, gtk_text_get_point() is wrong by one.
1004         gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
1005
1006         // always use m_defaultStyle, even if it is empty as otherwise
1007         // resetting the style and appending some more text wouldn't work: if
1008         // we don't specify the style explicitly, the old style would be used
1009         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
1010         wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
1011
1012         // we called wxGtkTextInsert with correct font, no need to do anything
1013         // in UpdateFontIfNeeded() any longer
1014         if ( !text.empty() )
1015         {
1016             SetUpdateFont(false);
1017         }
1018
1019         // Bring editable's cursor back uptodate.
1020         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1021 #endif // GTK 1.x/2.0
1022     }
1023     else // single line
1024     {
1025         // First remove the selection if there is one
1026         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
1027
1028         // This moves the cursor pos to behind the inserted text.
1029         gint len = GET_EDITABLE_POS(m_text);
1030
1031 #ifdef __WXGTK20__
1032
1033 #if wxUSE_UNICODE
1034         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
1035 #else
1036         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
1037 #endif
1038         if ( !buffer )
1039         {
1040             // what else can we do? at least don't crash...
1041             return;
1042         }
1043
1044         gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
1045
1046 #else
1047         gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
1048 #endif
1049
1050         // Bring entry's cursor uptodate.
1051         gtk_entry_set_position( GTK_ENTRY(m_text), len );
1052     }
1053
1054     m_modified = oldModified;
1055 }
1056
1057 void wxTextCtrl::AppendText( const wxString &text )
1058 {
1059     SetInsertionPointEnd();
1060     WriteText( text );
1061 }
1062
1063 wxString wxTextCtrl::GetLineText( long lineNo ) const
1064 {
1065     if (m_windowStyle & wxTE_MULTILINE)
1066     {
1067 #ifndef __WXGTK20__
1068         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1069         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1070
1071         if (text)
1072         {
1073             wxString buf;
1074             long i;
1075             int currentLine = 0;
1076             for (i = 0; currentLine != lineNo && text[i]; i++ )
1077                 if (text[i] == '\n')
1078             currentLine++;
1079             // Now get the text
1080             int j;
1081             for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
1082                 buf += text[i];
1083
1084             g_free( text );
1085             return buf;
1086         }
1087         else
1088         {
1089             return wxEmptyString;
1090         }
1091 #else
1092         GtkTextIter line;
1093         gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1094         GtkTextIter end;
1095         gtk_text_buffer_get_end_iter(m_buffer,&end );
1096         gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
1097         wxString result(wxGTK_CONV_BACK(text));
1098         g_free(text);
1099         return result.BeforeFirst(wxT('\n'));
1100 #endif
1101     }
1102     else
1103     {
1104         if (lineNo == 0) return GetValue();
1105         return wxEmptyString;
1106     }
1107 }
1108
1109 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1110 {
1111   /* If you implement this, don't forget to update the documentation!
1112    * (file docs/latex/wx/text.tex) */
1113     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1114 }
1115
1116 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1117 {
1118     if ( m_windowStyle & wxTE_MULTILINE )
1119     {
1120         wxString text = GetValue();
1121
1122         // cast to prevent warning. But pos really should've been unsigned.
1123         if( (unsigned long)pos > text.Len()  )
1124             return false;
1125
1126         *x=0;   // First Col
1127         *y=0;   // First Line
1128
1129         const wxChar* stop = text.c_str() + pos;
1130         for ( const wxChar *p = text.c_str(); p < stop; p++ )
1131         {
1132             if (*p == wxT('\n'))
1133             {
1134                 (*y)++;
1135                 *x=0;
1136             }
1137             else
1138                 (*x)++;
1139         }
1140     }
1141     else // single line control
1142     {
1143         if ( pos <= GTK_ENTRY(m_text)->text_length )
1144         {
1145             *y = 0;
1146             *x = pos;
1147         }
1148         else
1149         {
1150             // index out of bounds
1151             return false;
1152         }
1153     }
1154
1155     return true;
1156 }
1157
1158 long wxTextCtrl::XYToPosition(long x, long y ) const
1159 {
1160     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
1161
1162     long pos=0;
1163     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
1164
1165     pos += x;
1166     return pos;
1167 }
1168
1169 int wxTextCtrl::GetLineLength(long lineNo) const
1170 {
1171     wxString str = GetLineText (lineNo);
1172     return (int) str.Length();
1173 }
1174
1175 int wxTextCtrl::GetNumberOfLines() const
1176 {
1177     if (m_windowStyle & wxTE_MULTILINE)
1178     {
1179 #ifdef __WXGTK20__
1180         return gtk_text_buffer_get_line_count( m_buffer );
1181 #else
1182         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1183         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1184
1185         if (text)
1186         {
1187             int currentLine = 0;
1188             for (int i = 0; i < len; i++ )
1189             {
1190                 if (text[i] == '\n')
1191                     currentLine++;
1192             }
1193             g_free( text );
1194
1195             // currentLine is 0 based, add 1 to get number of lines
1196             return currentLine + 1;
1197         }
1198         else
1199         {
1200             return 0;
1201         }
1202 #endif
1203     }
1204     else
1205     {
1206         return 1;
1207     }
1208 }
1209
1210 void wxTextCtrl::SetInsertionPoint( long pos )
1211 {
1212     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1213
1214     if ( IsMultiLine() )
1215     {
1216 #ifdef __WXGTK20__
1217         GtkTextIter iter;
1218         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1219         gtk_text_buffer_place_cursor( m_buffer, &iter );
1220         gtk_text_view_scroll_mark_onscreen
1221         (
1222             GTK_TEXT_VIEW(m_text),
1223             gtk_text_buffer_get_insert( m_buffer )
1224         );
1225 #else // GTK+ 1.x
1226         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
1227           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1228
1229         /* we fake a set_point by inserting and deleting. as the user
1230            isn't supposed to get to know about this non-sense, we
1231            disconnect so that no events are sent to the user program. */
1232
1233         gint tmp = (gint)pos;
1234         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
1235         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
1236
1237         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
1238           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1239
1240         // bring editable's cursor uptodate. Bug in GTK.
1241         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1242 #endif // GTK+ 2/1
1243     }
1244     else
1245     {
1246         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
1247
1248         // Bring editable's cursor uptodate. Bug in GTK.
1249         SET_EDITABLE_POS(m_text, (guint32)pos);
1250     }
1251 }
1252
1253 void wxTextCtrl::SetInsertionPointEnd()
1254 {
1255     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1256
1257     if (m_windowStyle & wxTE_MULTILINE)
1258     {
1259 #ifdef __WXGTK20__
1260         GtkTextIter end;
1261         gtk_text_buffer_get_end_iter( m_buffer, &end );
1262         gtk_text_buffer_place_cursor( m_buffer, &end );
1263 #else
1264         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
1265 #endif
1266     }
1267     else
1268     {
1269         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
1270     }
1271 }
1272
1273 void wxTextCtrl::SetEditable( bool editable )
1274 {
1275     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1276
1277     if (m_windowStyle & wxTE_MULTILINE)
1278     {
1279 #ifdef __WXGTK20__
1280         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1281 #else
1282         gtk_text_set_editable( GTK_TEXT(m_text), editable );
1283 #endif
1284     }
1285     else
1286     {
1287         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
1288     }
1289 }
1290
1291 bool wxTextCtrl::Enable( bool enable )
1292 {
1293     if (!wxWindowBase::Enable(enable))
1294     {
1295         // nothing to do
1296         return false;
1297     }
1298
1299     if (m_windowStyle & wxTE_MULTILINE)
1300     {
1301 #ifdef __WXGTK20__
1302         SetEditable( enable );
1303 #else
1304         gtk_text_set_editable( GTK_TEXT(m_text), enable );
1305         OnParentEnable(enable);
1306 #endif
1307     }
1308     else
1309     {
1310         gtk_widget_set_sensitive( m_text, enable );
1311     }
1312
1313     return true;
1314 }
1315
1316 // wxGTK-specific: called recursively by Enable,
1317 // to give widgets an oppprtunity to correct their colours after they
1318 // have been changed by Enable
1319 void wxTextCtrl::OnParentEnable( bool enable )
1320 {
1321     // If we have a custom background colour, we use this colour in both
1322     // disabled and enabled mode, or we end up with a different colour under the
1323     // text.
1324     wxColour oldColour = GetBackgroundColour();
1325     if (oldColour.Ok())
1326     {
1327         // Need to set twice or it'll optimize the useful stuff out
1328         if (oldColour == * wxWHITE)
1329             SetBackgroundColour(*wxBLACK);
1330         else
1331             SetBackgroundColour(*wxWHITE);
1332         SetBackgroundColour(oldColour);
1333     }
1334 }
1335
1336 void wxTextCtrl::MarkDirty()
1337 {
1338     m_modified = true;
1339 }
1340
1341 void wxTextCtrl::DiscardEdits()
1342 {
1343     m_modified = false;
1344 }
1345
1346 // ----------------------------------------------------------------------------
1347 // max text length support
1348 // ----------------------------------------------------------------------------
1349
1350 void wxTextCtrl::IgnoreNextTextUpdate()
1351 {
1352     m_ignoreNextUpdate = true;
1353 }
1354
1355 bool wxTextCtrl::IgnoreTextUpdate()
1356 {
1357     if ( m_ignoreNextUpdate )
1358     {
1359         m_ignoreNextUpdate = false;
1360
1361         return true;
1362     }
1363
1364     return false;
1365 }
1366
1367 void wxTextCtrl::SetMaxLength(unsigned long len)
1368 {
1369     if ( !HasFlag(wxTE_MULTILINE) )
1370     {
1371         gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1372
1373         // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1374         // we had tried to enter more text than allowed by max text length and
1375         // the text wasn't really changed
1376         //
1377         // to detect this and generate TEXT_MAXLEN event instead of
1378         // TEXT_CHANGED one in this case we also catch "insert_text" signal
1379         //
1380         // when max len is set to 0 we disconnect our handler as it means that
1381         // we shouldn't check anything any more
1382         if ( len )
1383         {
1384             gtk_signal_connect( GTK_OBJECT(m_text),
1385                                 "insert_text",
1386                                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1387                                 (gpointer)this);
1388         }
1389         else // no checking
1390         {
1391             gtk_signal_disconnect_by_func
1392             (
1393                 GTK_OBJECT(m_text),
1394                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1395                 (gpointer)this
1396             );
1397         }
1398     }
1399 }
1400
1401 void wxTextCtrl::SetSelection( long from, long to )
1402 {
1403     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1404
1405     if (from == -1 && to == -1)
1406     {
1407         from = 0;
1408         to = GetValue().Length();
1409     }
1410
1411 #ifndef __WXGTK20__
1412     if ( (m_windowStyle & wxTE_MULTILINE) &&
1413          !GTK_TEXT(m_text)->line_start_cache )
1414     {
1415         // tell the programmer that it didn't work
1416         wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1417         return;
1418     }
1419 #endif
1420
1421     if (m_windowStyle & wxTE_MULTILINE)
1422     {
1423 #ifdef __WXGTK20__
1424         GtkTextIter fromi, toi;
1425         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1426         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1427
1428         gtk_text_buffer_place_cursor( m_buffer, &toi );
1429         gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1430 #else
1431         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1432 #endif
1433     }
1434     else
1435     {
1436         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1437     }
1438 }
1439
1440 void wxTextCtrl::ShowPosition( long pos )
1441 {
1442     if (m_windowStyle & wxTE_MULTILINE)
1443     {
1444 #ifdef __WXGTK20__
1445         GtkTextIter iter;
1446         gtk_text_buffer_get_start_iter( m_buffer, &iter );
1447         gtk_text_iter_set_offset( &iter, pos );
1448         GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1449         gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1450 #else // GTK 1.x
1451         GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1452         float totalLines =  (float) GetNumberOfLines();
1453         long posX;
1454         long posY;
1455         PositionToXY(pos, &posX, &posY);
1456         float posLine = (float) posY;
1457         float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1458         gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1459 #endif // GTK 1.x/2.x
1460     }
1461 }
1462
1463 #ifdef __WXGTK20__
1464
1465 wxTextCtrlHitTestResult
1466 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1467 {
1468     if ( !IsMultiLine() )
1469     {
1470         // not supported
1471         return wxTE_HT_UNKNOWN;
1472     }
1473
1474     int x, y;
1475     gtk_text_view_window_to_buffer_coords
1476     (
1477         GTK_TEXT_VIEW(m_text),
1478         GTK_TEXT_WINDOW_TEXT,
1479         pt.x, pt.y,
1480         &x, &y
1481     );
1482
1483     GtkTextIter iter;
1484     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1485     if ( pos )
1486         *pos = gtk_text_iter_get_offset(&iter);
1487
1488     return wxTE_HT_ON_TEXT;
1489 }
1490
1491 #endif // __WXGTK20__
1492
1493 long wxTextCtrl::GetInsertionPoint() const
1494 {
1495     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1496
1497 #ifdef __WXGTK20__
1498     if (m_windowStyle & wxTE_MULTILINE)
1499     {
1500         // There is no direct accessor for the cursor, but
1501         // internally, the cursor is the "mark" called
1502         // "insert" in the text view's btree structure.
1503
1504         GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1505         GtkTextIter cursor;
1506         gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1507
1508         return gtk_text_iter_get_offset( &cursor );
1509     }
1510     else
1511 #endif
1512     {
1513     return (long) GET_EDITABLE_POS(m_text);
1514     }
1515 }
1516
1517 wxTextPos wxTextCtrl::GetLastPosition() const
1518 {
1519     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1520
1521     int pos = 0;
1522
1523     if (m_windowStyle & wxTE_MULTILINE)
1524     {
1525 #ifdef __WXGTK20__
1526         GtkTextIter end;
1527         gtk_text_buffer_get_end_iter( m_buffer, &end );
1528
1529         pos = gtk_text_iter_get_offset( &end );
1530 #else
1531         pos = gtk_text_get_length( GTK_TEXT(m_text) );
1532 #endif
1533     }
1534     else
1535     {
1536         pos = GTK_ENTRY(m_text)->text_length;
1537     }
1538
1539     return (long)pos;
1540 }
1541
1542 void wxTextCtrl::Remove( long from, long to )
1543 {
1544     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1545
1546 #ifdef __WXGTK20__
1547     if (m_windowStyle & wxTE_MULTILINE)
1548     {
1549         GtkTextIter fromi, toi;
1550         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1551         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1552
1553         gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1554     }
1555     else // single line
1556 #endif
1557     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1558 }
1559
1560 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1561 {
1562     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1563
1564     Remove( from, to );
1565
1566     if (!value.empty())
1567     {
1568 #ifdef __WXGTK20__
1569         SetInsertionPoint( from );
1570         WriteText( value );
1571 #else // GTK 1.x
1572         gint pos = (gint)from;
1573 #if wxUSE_UNICODE
1574         wxWX2MBbuf buf = value.mbc_str();
1575         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1576 #else
1577         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1578 #endif // wxUSE_UNICODE
1579 #endif // GTK 1.x/2.x
1580     }
1581 }
1582
1583 void wxTextCtrl::Cut()
1584 {
1585     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1586
1587 #ifdef __WXGTK20__
1588     if (m_windowStyle & wxTE_MULTILINE)
1589         g_signal_emit_by_name(m_text, "cut-clipboard");
1590     else
1591 #endif
1592         gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1593 }
1594
1595 void wxTextCtrl::Copy()
1596 {
1597     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1598
1599 #ifdef __WXGTK20__
1600     if (m_windowStyle & wxTE_MULTILINE)
1601         g_signal_emit_by_name(m_text, "copy-clipboard");
1602     else
1603 #endif
1604         gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1605 }
1606
1607 void wxTextCtrl::Paste()
1608 {
1609     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1610
1611 #ifdef __WXGTK20__
1612     if (m_windowStyle & wxTE_MULTILINE)
1613         g_signal_emit_by_name(m_text, "paste-clipboard");
1614     else
1615 #endif
1616         gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1617 }
1618
1619 // Undo/redo
1620 void wxTextCtrl::Undo()
1621 {
1622     // TODO
1623     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1624 }
1625
1626 void wxTextCtrl::Redo()
1627 {
1628     // TODO
1629     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1630 }
1631
1632 bool wxTextCtrl::CanUndo() const
1633 {
1634     // TODO
1635     //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1636     return false;
1637 }
1638
1639 bool wxTextCtrl::CanRedo() const
1640 {
1641     // TODO
1642     //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1643     return false;
1644 }
1645
1646 // If the return values from and to are the same, there is no
1647 // selection.
1648 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1649 {
1650     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1651
1652     gint from = -1;
1653     gint to = -1;
1654     bool haveSelection = false;
1655
1656 #ifdef __WXGTK20__
1657      if (m_windowStyle & wxTE_MULTILINE)
1658      {
1659          GtkTextIter ifrom, ito;
1660          if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1661          {
1662              haveSelection = true;
1663              from = gtk_text_iter_get_offset(&ifrom);
1664              to = gtk_text_iter_get_offset(&ito);
1665          }
1666      }
1667      else  // not multi-line
1668      {
1669          if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1670                                                  &from, &to) )
1671          {
1672              haveSelection = true;
1673          }
1674      }
1675 #else //  not GTK2
1676      if ( (GTK_EDITABLE(m_text)->has_selection) )
1677      {
1678          haveSelection = true;
1679          from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1680          to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1681      }
1682 #endif
1683
1684      if (! haveSelection )
1685           from = to = GetInsertionPoint();
1686
1687      if ( from > to )
1688      {
1689          // exchange them to be compatible with wxMSW
1690          gint tmp = from;
1691          from = to;
1692          to = tmp;
1693      }
1694
1695     if ( fromOut )
1696         *fromOut = from;
1697     if ( toOut )
1698         *toOut = to;
1699 }
1700
1701
1702 bool wxTextCtrl::IsEditable() const
1703 {
1704     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1705
1706 #ifdef __WXGTK20__
1707     if (m_windowStyle & wxTE_MULTILINE)
1708     {
1709         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1710     }
1711     else
1712     {
1713         return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1714     }
1715 #else
1716     return GTK_EDITABLE(m_text)->editable;
1717 #endif
1718 }
1719
1720 bool wxTextCtrl::IsModified() const
1721 {
1722     return m_modified;
1723 }
1724
1725 void wxTextCtrl::Clear()
1726 {
1727     SetValue( wxEmptyString );
1728 }
1729
1730 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1731 {
1732     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1733
1734     if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1735     {
1736         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1737         event.SetEventObject(this);
1738         event.SetString(GetValue());
1739         if (GetEventHandler()->ProcessEvent(event)) return;
1740     }
1741
1742     if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1743     {
1744         // This will invoke the dialog default action, such
1745         // as the clicking the default button.
1746
1747         wxWindow *top_frame = m_parent;
1748         while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1749             top_frame = top_frame->GetParent();
1750
1751         if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1752         {
1753             GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1754
1755             if (window->default_widget)
1756             {
1757                 gtk_widget_activate (window->default_widget);
1758                 return;
1759             }
1760         }
1761     }
1762
1763     key_event.Skip();
1764 }
1765
1766 GtkWidget* wxTextCtrl::GetConnectWidget()
1767 {
1768     return GTK_WIDGET(m_text);
1769 }
1770
1771 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1772 {
1773     if (m_windowStyle & wxTE_MULTILINE)
1774     {
1775 #ifdef __WXGTK20__
1776         return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT );  // pure guesswork
1777 #else
1778         return (window == GTK_TEXT(m_text)->text_area);
1779 #endif
1780     }
1781     else
1782     {
1783         return (window == GTK_ENTRY(m_text)->text_area);
1784     }
1785 }
1786
1787 // the font will change for subsequent text insertiongs
1788 bool wxTextCtrl::SetFont( const wxFont &font )
1789 {
1790     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1791
1792     if ( !wxTextCtrlBase::SetFont(font) )
1793     {
1794         // font didn't change, nothing to do
1795         return false;
1796     }
1797
1798     if ( m_windowStyle & wxTE_MULTILINE )
1799     {
1800         SetUpdateFont(true);
1801
1802         m_defaultStyle.SetFont(font);
1803
1804         ChangeFontGlobally();
1805     }
1806
1807     return true;
1808 }
1809
1810 void wxTextCtrl::ChangeFontGlobally()
1811 {
1812     // this method is very inefficient and hence should be called as rarely as
1813     // possible!
1814     //
1815     // TODO: it can be implemented much more efficiently for GTK2
1816 #ifndef __WXGTK20__
1817     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1818
1819                   _T("shouldn't be called for single line controls") );
1820 #else
1821     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1822                   _T("shouldn't be called for single line controls") );
1823 #endif
1824
1825     wxString value = GetValue();
1826     if ( !value.empty() )
1827     {
1828         SetUpdateFont(false);
1829
1830         Clear();
1831         AppendText(value);
1832     }
1833 }
1834
1835 #ifndef __WXGTK20__
1836
1837 void wxTextCtrl::UpdateFontIfNeeded()
1838 {
1839     if ( m_updateFont )
1840         ChangeFontGlobally();
1841 }
1842
1843 #endif // GTK+ 1.x
1844
1845 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1846 {
1847     if ( !wxControl::SetForegroundColour(colour) )
1848         return false;
1849
1850     // update default fg colour too
1851     m_defaultStyle.SetTextColour(colour);
1852
1853     return true;
1854 }
1855
1856 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1857 {
1858     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1859
1860     if ( !wxControl::SetBackgroundColour( colour ) )
1861         return false;
1862
1863 #ifndef __WXGTK20__
1864     if (!m_widget->window)
1865         return false;
1866 #endif
1867
1868     if (!m_backgroundColour.Ok())
1869         return false;
1870
1871     if (m_windowStyle & wxTE_MULTILINE)
1872     {
1873 #ifndef __WXGTK20__
1874         GdkWindow *window = GTK_TEXT(m_text)->text_area;
1875         if (!window)
1876             return false;
1877         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1878         gdk_window_set_background( window, m_backgroundColour.GetColor() );
1879         gdk_window_clear( window );
1880 #endif
1881     }
1882
1883     // change active background color too
1884     m_defaultStyle.SetBackgroundColour( colour );
1885
1886     return true;
1887 }
1888
1889 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1890 {
1891     if ( m_windowStyle & wxTE_MULTILINE )
1892     {
1893         if ( style.IsDefault() )
1894         {
1895             // nothing to do
1896             return true;
1897         }
1898
1899 #ifdef __WXGTK20__
1900         gint l = gtk_text_buffer_get_char_count( m_buffer );
1901
1902         wxCHECK_MSG( start >= 0 && end <= l, false,
1903                      _T("invalid range in wxTextCtrl::SetStyle") );
1904
1905         GtkTextIter starti, endi;
1906         gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1907         gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1908
1909         // use the attributes from style which are set in it and fall back
1910         // first to the default style and then to the text control default
1911         // colours for the others
1912         wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1913
1914         wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1915 #else
1916         // VERY dirty way to do that - removes the required text and re-adds it
1917         // with styling (FIXME)
1918
1919         gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1920
1921         wxCHECK_MSG( start >= 0 && end <= l, false,
1922                      _T("invalid range in wxTextCtrl::SetStyle") );
1923
1924         gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1925         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1926         wxString tmp(text,*wxConvCurrent);
1927         g_free( text );
1928
1929         gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1930         gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1931
1932     #if wxUSE_UNICODE
1933         wxWX2MBbuf buf = tmp.mbc_str();
1934         const char *txt = buf;
1935         size_t txtlen = strlen(buf);
1936     #else
1937         const char *txt = tmp;
1938         size_t txtlen = tmp.length();
1939     #endif
1940
1941         // use the attributes from style which are set in it and fall back
1942         // first to the default style and then to the text control default
1943         // colours for the others
1944         wxGtkTextInsert(m_text,
1945                         wxTextAttr::Combine(style, m_defaultStyle, this),
1946                         txt,
1947                         txtlen);
1948
1949         /* does not seem to help under GTK+ 1.2 !!!
1950         gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1951         SetInsertionPoint( old_pos );
1952 #endif
1953
1954         return true;
1955     }
1956
1957     // else single line
1958     // cannot do this for GTK+'s Entry widget
1959     return false;
1960 }
1961
1962 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1963 {
1964     gtk_widget_modify_style(m_text, style);
1965 }
1966
1967 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1968 {
1969     Cut();
1970 }
1971
1972 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1973 {
1974     Copy();
1975 }
1976
1977 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1978 {
1979     Paste();
1980 }
1981
1982 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1983 {
1984     Undo();
1985 }
1986
1987 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1988 {
1989     Redo();
1990 }
1991
1992 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1993 {
1994     event.Enable( CanCut() );
1995 }
1996
1997 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1998 {
1999     event.Enable( CanCopy() );
2000 }
2001
2002 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
2003 {
2004     event.Enable( CanPaste() );
2005 }
2006
2007 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
2008 {
2009     event.Enable( CanUndo() );
2010 }
2011
2012 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
2013 {
2014     event.Enable( CanRedo() );
2015 }
2016
2017 void wxTextCtrl::OnInternalIdle()
2018 {
2019     wxCursor cursor = m_cursor;
2020     if (g_globalCursor.Ok()) cursor = g_globalCursor;
2021
2022     if (cursor.Ok())
2023     {
2024 #ifndef __WXGTK20__
2025         GdkWindow *window = (GdkWindow*) NULL;
2026         if (HasFlag(wxTE_MULTILINE))
2027             window = GTK_TEXT(m_text)->text_area;
2028         else
2029             window = GTK_ENTRY(m_text)->text_area;
2030
2031         if (window)
2032             gdk_window_set_cursor( window, cursor.GetCursor() );
2033
2034         if (!g_globalCursor.Ok())
2035             cursor = *wxSTANDARD_CURSOR;
2036
2037         window = m_widget->window;
2038         if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2039             gdk_window_set_cursor( window, cursor.GetCursor() );
2040 #endif
2041     }
2042
2043     if (g_delayedFocus == this)
2044     {
2045         if (GTK_WIDGET_REALIZED(m_widget))
2046         {
2047             gtk_widget_grab_focus( m_widget );
2048             g_delayedFocus = NULL;
2049         }
2050     }
2051
2052     if (wxUpdateUIEvent::CanUpdate(this))
2053         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2054 }
2055
2056 wxSize wxTextCtrl::DoGetBestSize() const
2057 {
2058     // FIXME should be different for multi-line controls...
2059     wxSize ret( wxControl::DoGetBestSize() );
2060     wxSize best(80, ret.y);
2061     CacheBestSize(best);
2062     return best;
2063 }
2064
2065 // ----------------------------------------------------------------------------
2066 // freeze/thaw
2067 // ----------------------------------------------------------------------------
2068
2069 void wxTextCtrl::Freeze()
2070 {
2071     if ( HasFlag(wxTE_MULTILINE) )
2072     {
2073 #ifdef __WXGTK20__
2074         if ( !m_frozenness++ )
2075         {
2076             // freeze textview updates and remove buffer
2077             g_signal_connect( G_OBJECT(m_text), "expose_event",
2078                 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2079             g_signal_connect( G_OBJECT(m_widget), "expose_event",
2080                 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2081             gtk_widget_set_sensitive(m_widget, false);
2082             g_object_ref(m_buffer);
2083             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
2084     }
2085 #else
2086         gtk_text_freeze(GTK_TEXT(m_text));
2087 #endif
2088     }
2089 }
2090
2091 void wxTextCtrl::Thaw()
2092 {
2093     if ( HasFlag(wxTE_MULTILINE) )
2094     {
2095 #ifdef __WXGTK20__
2096         wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
2097
2098         if ( !--m_frozenness )
2099         {
2100             // Reattach buffer and thaw textview updates
2101             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
2102             g_object_unref(m_buffer);
2103             gtk_widget_set_sensitive(m_widget, true);
2104             g_signal_handlers_disconnect_by_func(m_widget, (gpointer)gtk_text_exposed_callback, this);
2105             g_signal_handlers_disconnect_by_func(m_text, (gpointer)gtk_text_exposed_callback, this);
2106         }
2107 #else
2108         GTK_TEXT(m_text)->vadj->value = 0.0;
2109
2110         gtk_text_thaw(GTK_TEXT(m_text));
2111 #endif
2112     }
2113 }
2114
2115 // ----------------------------------------------------------------------------
2116 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
2117 // ----------------------------------------------------------------------------
2118
2119 #ifdef __WXGTK20__
2120
2121 // FIXME: when dragging on a link the sample gets an "Unknown event".
2122 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
2123 // a buggy sample, or something else
2124 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
2125 {
2126     event.Skip();
2127     if(!(m_windowStyle & wxTE_AUTO_URL))
2128         return;
2129
2130     gint x, y;
2131     GtkTextIter start, end;
2132     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
2133                                                 "wxUrl");
2134
2135     gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
2136                                           event.GetX(), event.GetY(), &x, &y);
2137
2138     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
2139     if (!gtk_text_iter_has_tag(&end, tag))
2140     {
2141         gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2142                               GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
2143         return;
2144     }
2145
2146     gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2147                           GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
2148
2149     start = end;
2150     if(!gtk_text_iter_begins_tag(&start, tag))
2151         gtk_text_iter_backward_to_tag_toggle(&start, tag);
2152     if(!gtk_text_iter_ends_tag(&end, tag))
2153         gtk_text_iter_forward_to_tag_toggle(&end, tag);
2154
2155     // Native context menu is probably not desired on an URL.
2156     // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
2157     if(event.GetEventType() == wxEVT_RIGHT_DOWN)
2158         event.Skip(false);
2159
2160     wxTextUrlEvent url_event(m_windowId, event,
2161                              gtk_text_iter_get_offset(&start),
2162                              gtk_text_iter_get_offset(&end));
2163
2164     InitCommandEvent(url_event);
2165     // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
2166     //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
2167     GetEventHandler()->ProcessEvent(url_event);
2168 }
2169 #endif // gtk2
2170
2171 // ----------------------------------------------------------------------------
2172 // scrolling
2173 // ----------------------------------------------------------------------------
2174
2175 GtkAdjustment *wxTextCtrl::GetVAdj() const
2176 {
2177     if ( !IsMultiLine() )
2178         return NULL;
2179
2180 #ifdef __WXGTK20__
2181     return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
2182 #else
2183     return GTK_TEXT(m_text)->vadj;
2184 #endif
2185 }
2186
2187 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
2188 {
2189     float value = adj->value + diff;
2190
2191     if ( value < 0 )
2192         value = 0;
2193
2194     float upper = adj->upper - adj->page_size;
2195     if ( value > upper )
2196         value = upper;
2197
2198     // did we noticeably change the scroll position?
2199     if ( fabs(adj->value - value) < 0.2 )
2200     {
2201         // well, this is what Robert does in wxScrollBar, so it must be good...
2202         return false;
2203     }
2204
2205     adj->value = value;
2206
2207 #ifdef __WXGTK20__
2208     gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
2209 #else
2210     gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
2211 #endif
2212
2213     return true;
2214 }
2215
2216 bool wxTextCtrl::ScrollLines(int lines)
2217 {
2218     GtkAdjustment *adj = GetVAdj();
2219     if ( !adj )
2220         return false;
2221
2222 #ifdef __WXGTK20__
2223     int diff = (int)ceil(lines*adj->step_increment);
2224 #else
2225     // this is hardcoded to 10 in GTK+ 1.2 (great idea)
2226     int diff = 10*lines;
2227 #endif
2228
2229     return DoScroll(adj, diff);
2230 }
2231
2232 bool wxTextCtrl::ScrollPages(int pages)
2233 {
2234     GtkAdjustment *adj = GetVAdj();
2235     if ( !adj )
2236         return false;
2237
2238     return DoScroll(adj, (int)ceil(pages*adj->page_increment));
2239 }
2240
2241
2242 // static
2243 wxVisualAttributes
2244 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
2245 {
2246     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
2247 }