src/gtk1/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 bool       g_blockEventsOnDrag;
  46 extern wxCursor   g_globalCursor;
  47 extern wxWindowGTK *g_delayedFocus;
  48
  49 // ----------------------------------------------------------------------------
  50 // helpers
  51 // ----------------------------------------------------------------------------
  52
  53 #ifdef __WXGTK20__
  54 extern "C" {
  55 static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
  56                              GtkTextTag *tag,
  57                              GtkTextIter *start,
  58                              GtkTextIter *end,
  59                              gpointer user_data)
  60 {
  61     gchar *name;
  62     g_object_get (tag, "name", &name, NULL);
  63
  64     if (!name || strncmp(name, "WX", 2)) // anonymous tag or not starting with "WX"
  65         g_signal_stop_emission_by_name(buffer, "remove_tag");
  66
  67     g_free(name);
  68 }
  69 }
  70
  71 extern "C" {
  72 static void wxGtkTextApplyTagsFromAttr(GtkTextBuffer *text_buffer,
  73                                        const wxTextAttr& attr,
  74                                        GtkTextIter *start,
  75                                        GtkTextIter *end)
  76 {
  77     static gchar buf[1024];
  78     GtkTextTag *tag;
  79
  80     gulong remove_handler_id = g_signal_connect( text_buffer, "remove_tag",
  81                                                  G_CALLBACK(wxGtkOnRemoveTag), NULL);
  82     gtk_text_buffer_remove_all_tags(text_buffer, start, end);
  83     g_signal_handler_disconnect( text_buffer, remove_handler_id );
  84
  85     if (attr.HasFont())
  86     {
  87         char *font_string;
  88         PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
  89         font_string = pango_font_description_to_string(font_description);
  90         g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string);
  91         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
  92                                          buf );
  93         if (!tag)
  94             tag = gtk_text_buffer_create_tag( text_buffer, buf,
  95                                               "font-desc", font_description,
  96                                               NULL );
  97         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
  98         g_free (font_string);
  99     }
 100
 101     if (attr.HasTextColour())
 102     {
 103         GdkColor *colFg = attr.GetTextColour().GetColor();
 104         g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
 105                    colFg->red, colFg->green, colFg->blue);
 106         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 107                                          buf );
 108         if (!tag)
 109             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 110                                               "foreground-gdk", colFg, NULL );
 111         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 112     }
 113
 114     if (attr.HasBackgroundColour())
 115     {
 116         GdkColor *colBg = attr.GetBackgroundColour().GetColor();
 117         g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
 118                    colBg->red, colBg->green, colBg->blue);
 119         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 120                                          buf );
 121         if (!tag)
 122             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 123                                               "background-gdk", colBg, NULL );
 124         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 125     }
 126 }
 127 }
 128
 129 extern "C" {
 130 static void wxGtkTextInsert(GtkWidget *text,
 131                             GtkTextBuffer *text_buffer,
 132                             const wxTextAttr& attr,
 133                             wxCharBuffer buffer)
 134
 135 {
 136     gint start_offset;
 137     GtkTextIter iter, start;
 138
 139     gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
 140                                      gtk_text_buffer_get_insert (text_buffer) );
 141     start_offset = gtk_text_iter_get_offset (&iter);
 142     gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
 143
 144     gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
 145
 146     wxGtkTextApplyTagsFromAttr(text_buffer, attr, &start, &iter);
 147 }
 148 }
 149 #else
 150 extern "C" {
 151 static void wxGtkTextInsert(GtkWidget *text,
 152                             const wxTextAttr& attr,
 153                             const char *txt,
 154                             size_t len)
 155 {
 156     GdkFont *font = attr.HasFont() ? attr.GetFont().GetInternalFont()
 157                                    : NULL;
 158
 159     GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
 160                                            : NULL;
 161
 162     GdkColor *colBg = attr.HasBackgroundColour()
 163                         ? attr.GetBackgroundColour().GetColor()
 164                         : NULL;
 165
 166     gtk_text_insert( GTK_TEXT(text), font, colFg, colBg, txt, len );
 167 }
 168 }
 169 #endif // GTK 1.x
 170
 171 // ----------------------------------------------------------------------------
 172 // "insert_text" for GtkEntry
 173 // ----------------------------------------------------------------------------
 174
 175 extern "C" {
 176 static void
 177 gtk_insert_text_callback(GtkEditable *editable,
 178                          const gchar *new_text,
 179                          gint new_text_length,
 180                          gint *position,
 181                          wxTextCtrl *win)
 182 {
 183     if (g_isIdle)
 184         wxapp_install_idle_handler();
 185
 186     // we should only be called if we have a max len limit at all
 187     GtkEntry *entry = GTK_ENTRY (editable);
 188
 189     wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
 190
 191     // check that we don't overflow the max length limit
 192     //
 193     // FIXME: this doesn't work when we paste a string which is going to be
 194     //        truncated
 195     if ( entry->text_length == entry->text_max_length )
 196     {
 197         // we don't need to run the base class version at all
 198         gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text");
 199
 200         // remember that the next changed signal is to be ignored to avoid
 201         // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
 202         win->IgnoreNextTextUpdate();
 203
 204         // and generate the correct one ourselves
 205         wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
 206         event.SetEventObject(win);
 207         event.SetString(win->GetValue());
 208         win->GetEventHandler()->ProcessEvent( event );
 209     }
 210 }
 211 }
 212
 213 #ifdef __WXGTK20__
 214 // Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
 215
 216 extern "C" {
 217 static void
 218 au_apply_tag_callback(GtkTextBuffer *buffer,
 219                       GtkTextTag *tag,
 220                       GtkTextIter *start,
 221                       GtkTextIter *end,
 222                       gpointer textctrl)
 223 {
 224     if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
 225         g_signal_stop_emission_by_name(buffer, "apply_tag");
 226 }
 227 }
 228
 229 //-----------------------------------------------------------------------------
 230 //  GtkTextCharPredicates for gtk_text_iter_*_find_char
 231 //-----------------------------------------------------------------------------
 232
 233 extern "C" {
 234 static gboolean
 235 pred_whitespace (gunichar ch, gpointer user_data)
 236 {
 237     return g_unichar_isspace(ch);
 238 }
 239 }
 240
 241 extern "C" {
 242 static gboolean
 243 pred_non_whitespace (gunichar ch, gpointer user_data)
 244 {
 245     return !g_unichar_isspace(ch);
 246 }
 247 }
 248
 249 extern "C" {
 250 static gboolean
 251 pred_nonpunct (gunichar ch, gpointer user_data)
 252 {
 253     return !g_unichar_ispunct(ch);
 254 }
 255 }
 256
 257 extern "C" {
 258 static gboolean
 259 pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
 260 {
 261     return !g_unichar_ispunct(ch) || ch == '/';
 262 }
 263 }
 264
 265 //-----------------------------------------------------------------------------
 266 //  Check for links between s and e and correct tags as necessary
 267 //-----------------------------------------------------------------------------
 268
 269 // This function should be made match better while being efficient at one point.
 270 // Most probably with a row of regular expressions.
 271 extern "C" {
 272 static void
 273 au_check_word( GtkTextIter *s, GtkTextIter *e )
 274 {
 275     static const char *URIPrefixes[] =
 276     {
 277         "http://",
 278         "ftp://",
 279         "www.",
 280         "ftp.",
 281         "mailto://",
 282         "https://",
 283         "file://",
 284         "nntp://",
 285         "news://",
 286         "telnet://",
 287         "mms://",
 288         "gopher://",
 289         "prospero://",
 290         "wais://",
 291     };
 292
 293     GtkTextIter start = *s, end = *e;
 294     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 295
 296     // Get our special link tag
 297     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 298
 299     // Get rid of punctuation from beginning and end.
 300     // Might want to move this to au_check_range if an improved link checking doesn't
 301     // use some intelligent punctuation checking itself (beware of undesired iter modifications).
 302     if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
 303         gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
 304
 305     gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
 306     gtk_text_iter_forward_char(&end);
 307
 308     gchar* text = gtk_text_iter_get_text( &start, &end );
 309     size_t len = strlen(text), prefix_len;
 310     size_t n;
 311
 312     for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
 313     {
 314         prefix_len = strlen(URIPrefixes[n]);
 315         if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
 316             break;
 317     }
 318
 319     if(n < WXSIZEOF(URIPrefixes))
 320     {
 321         gulong signal_id = g_signal_handler_find(buffer,
 322                                                  (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
 323                                                  0, 0, NULL,
 324                                                  (gpointer)au_apply_tag_callback, NULL);
 325
 326         g_signal_handler_block(buffer, signal_id);
 327         gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
 328         g_signal_handler_unblock(buffer, signal_id);
 329     }
 330 }
 331 }
 332
 333 extern "C" {
 334 static void
 335 au_check_range(GtkTextIter *s,
 336                GtkTextIter *range_end)
 337 {
 338     GtkTextIter range_start = *s;
 339     GtkTextIter word_end;
 340     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 341     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 342
 343     gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
 344
 345     if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
 346         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 347
 348     while(!gtk_text_iter_equal(&range_start, range_end))
 349     {
 350         word_end = range_start;
 351         gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
 352
 353         // Now we should have a word delimited by range_start and word_end, correct link tags
 354         au_check_word(&range_start, &word_end);
 355
 356         range_start = word_end;
 357         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 358     }
 359 }
 360 }
 361
 362 //-----------------------------------------------------------------------------
 363 //  "insert-text" for GtkTextBuffer
 364 //-----------------------------------------------------------------------------
 365
 366 extern "C" {
 367 static void
 368 au_insert_text_callback(GtkTextBuffer *buffer,
 369                         GtkTextIter *end,
 370                         gchar *text,
 371                         gint len,
 372                         wxTextCtrl *win)
 373 {
 374     if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 375         return;
 376
 377     GtkTextIter start = *end;
 378     gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
 379
 380     GtkTextIter line_start = start;
 381     GtkTextIter line_end = *end;
 382     GtkTextIter words_start = start;
 383     GtkTextIter words_end = *end;
 384
 385     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
 386     gtk_text_iter_forward_to_line_end(&line_end);
 387     gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
 388     gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
 389
 390     au_check_range(&words_start, &words_end);
 391 }
 392 }
 393
 394 //-----------------------------------------------------------------------------
 395 //  "delete-range" for GtkTextBuffer
 396 //-----------------------------------------------------------------------------
 397
 398 extern "C" {
 399 static void
 400 au_delete_range_callback(GtkTextBuffer *buffer,
 401                          GtkTextIter *start,
 402                          GtkTextIter *end,
 403                          wxTextCtrl *win)
 404 {
 405     if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 406         return;
 407
 408     GtkTextIter line_start = *start, line_end = *end;
 409
 410     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
 411     gtk_text_iter_forward_to_line_end(&line_end);
 412     gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
 413     gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
 414
 415     au_check_range(start, end);
 416 }
 417 }
 418
 419
 420 #endif
 421
 422 //-----------------------------------------------------------------------------
 423 //  "changed"
 424 //-----------------------------------------------------------------------------
 425
 426 extern "C" {
 427 static void
 428 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
 429 {
 430     if ( win->IgnoreTextUpdate() )
 431         return;
 432
 433     if (!win->m_hasVMT) return;
 434
 435     if (g_isIdle)
 436         wxapp_install_idle_handler();
 437
 438     win->SetModified();
 439 #ifndef __WXGTK20__
 440     win->UpdateFontIfNeeded();
 441 #endif // !__WXGTK20__
 442
 443     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
 444     event.SetEventObject( win );
 445     win->GetEventHandler()->ProcessEvent( event );
 446 }
 447 }
 448
 449 //-----------------------------------------------------------------------------
 450 // "expose_event" from scrolled window and textview
 451 //-----------------------------------------------------------------------------
 452
 453 #ifdef __WXGTK20__
 454 extern "C" {
 455 static gboolean
 456 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
 457 {
 458     return TRUE;
 459 }
 460 }
 461 #endif
 462
 463 //-----------------------------------------------------------------------------
 464 // "changed" from vertical scrollbar
 465 //-----------------------------------------------------------------------------
 466
 467 #ifndef __WXGTK20__
 468 extern "C" {
 469 static void
 470 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
 471 {
 472     if (!win->m_hasVMT) return;
 473
 474     if (g_isIdle)
 475         wxapp_install_idle_handler();
 476
 477     win->CalculateScrollbar();
 478 }
 479 }
 480 #endif
 481
 482 // ----------------------------------------------------------------------------
 483 // redraw callback for multiline text
 484 // ----------------------------------------------------------------------------
 485
 486 #ifndef __WXGTK20__
 487
 488 // redrawing a GtkText from inside a wxYield() call results in crashes (the
 489 // text sample shows it in its "Add lines" command which shows wxProgressDialog
 490 // which implicitly calls wxYield()) so we override GtkText::draw() and simply
 491 // don't do anything if we're inside wxYield()
 492
 493 extern bool wxIsInsideYield;
 494
 495 extern "C" {
 496     typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
 497 }
 498
 499 static GtkDrawCallback gs_gtk_text_draw = NULL;
 500
 501 extern "C" {
 502 static void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
 503 {
 504     if ( !wxIsInsideYield )
 505     {
 506         wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
 507                      _T("infinite recursion in wxgtk_text_draw aborted") );
 508
 509         gs_gtk_text_draw(widget, rect);
 510     }
 511 }
 512 }
 513
 514 #endif // __WXGTK20__
 515
 516 //-----------------------------------------------------------------------------
 517 //  wxTextCtrl
 518 //-----------------------------------------------------------------------------
 519
 520 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
 521
 522 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 523     EVT_CHAR(wxTextCtrl::OnChar)
 524
 525     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 526     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 527     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 528     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 529     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 530
 531     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 532     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 533     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 534     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 535     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 536
 537 #ifdef __WXGTK20__
 538     // wxTE_AUTO_URL wxTextUrl support. Currently only creates
 539     // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
 540     EVT_MOTION      (wxTextCtrl::OnUrlMouseEvent)
 541     EVT_LEFT_DOWN   (wxTextCtrl::OnUrlMouseEvent)
 542     EVT_LEFT_UP     (wxTextCtrl::OnUrlMouseEvent)
 543     EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
 544     EVT_RIGHT_DOWN  (wxTextCtrl::OnUrlMouseEvent)
 545     EVT_RIGHT_UP    (wxTextCtrl::OnUrlMouseEvent)
 546     EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
 547 #endif
 548 END_EVENT_TABLE()
 549
 550 void wxTextCtrl::Init()
 551 {
 552     m_ignoreNextUpdate =
 553     m_modified = false;
 554     SetUpdateFont(false);
 555     m_text =
 556     m_vScrollbar = (GtkWidget *)NULL;
 557 #ifdef __WXGTK20__
 558     m_frozenness = 0;
 559     m_gdkHandCursor = NULL;
 560     m_gdkXTermCursor = NULL;
 561 #endif
 562 }
 563
 564 wxTextCtrl::~wxTextCtrl()
 565 {
 566 #ifdef __WXGTK20__
 567     if(m_gdkHandCursor)
 568         gdk_cursor_unref(m_gdkHandCursor);
 569     if(m_gdkXTermCursor)
 570         gdk_cursor_unref(m_gdkXTermCursor);
 571 #endif
 572 }
 573
 574 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 575                         wxWindowID id,
 576                         const wxString &value,
 577                         const wxPoint &pos,
 578                         const wxSize &size,
 579                         long style,
 580                         const wxValidator& validator,
 581                         const wxString &name )
 582 {
 583     Init();
 584
 585     Create( parent, id, value, pos, size, style, validator, name );
 586 }
 587
 588 bool wxTextCtrl::Create( wxWindow *parent,
 589                          wxWindowID id,
 590                          const wxString &value,
 591                          const wxPoint &pos,
 592                          const wxSize &size,
 593                          long style,
 594                          const wxValidator& validator,
 595                          const wxString &name )
 596 {
 597     m_needParent = true;
 598     m_acceptsFocus = true;
 599
 600     if (!PreCreation( parent, pos, size ) ||
 601         !CreateBase( parent, id, pos, size, style, validator, name ))
 602     {
 603         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 604         return false;
 605     }
 606
 607
 608     m_vScrollbarVisible = false;
 609
 610     bool multi_line = (style & wxTE_MULTILINE) != 0;
 611
 612     if (multi_line)
 613     {
 614 #ifdef __WXGTK20__
 615         // Create view
 616         m_text = gtk_text_view_new();
 617
 618         m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 619
 620         // create scrolled window
 621         m_widget = gtk_scrolled_window_new( NULL, NULL );
 622         gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
 623                                         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 624
 625         // Insert view into scrolled window
 626         gtk_container_add( GTK_CONTAINER(m_widget), m_text );
 627
 628         // translate wx wrapping style to GTK+
 629         GtkWrapMode wrap;
 630         if ( HasFlag( wxTE_DONTWRAP ) )
 631             wrap = GTK_WRAP_NONE;
 632         else if ( HasFlag( wxTE_CHARWRAP ) )
 633             wrap = GTK_WRAP_CHAR;
 634         else if ( HasFlag( wxTE_WORDWRAP ) )
 635             wrap = GTK_WRAP_WORD;
 636         else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
 637         {
 638             // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
 639 #ifdef __WXGTK24__
 640             if ( !gtk_check_version(2,4,0) )
 641             {
 642                 wrap = GTK_WRAP_WORD_CHAR;
 643             }
 644             else
 645 #endif
 646             wrap = GTK_WRAP_WORD;
 647         }
 648
 649         gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
 650
 651         if (!HasFlag(wxNO_BORDER))
 652             gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
 653
 654         gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
 655
 656         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 657 #else // GTK+ 1
 658         // create our control ...
 659         m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
 660
 661         // ... and put into the upper left hand corner of the table
 662         bool bHasHScrollbar = false;
 663         m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
 664         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 665         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 666                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 667                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 668                        0, 0);
 669
 670         // always wrap words
 671         gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
 672
 673         // finally, put the vertical scrollbar in the upper right corner
 674         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 675         GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
 676         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 677                      GTK_FILL,
 678                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 679                      0, 0);
 680 #endif // GTK+ 2/1
 681     }
 682     else
 683     {
 684         // a single-line text control: no need for scrollbars
 685         m_widget =
 686         m_text = gtk_entry_new();
 687
 688 #ifdef __WXGTK20__
 689         if (style & wxNO_BORDER)
 690             g_object_set( GTK_ENTRY(m_text), "has-frame", FALSE, NULL );
 691 #endif
 692     }
 693
 694     m_parent->DoAddChild( this );
 695
 696     m_focusWidget = m_text;
 697
 698     PostCreation(size);
 699
 700     if (multi_line)
 701         gtk_widget_show(m_text);
 702
 703 #ifndef __WXGTK20__
 704     if (multi_line)
 705     {
 706         gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
 707           (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
 708
 709         // only initialize gs_gtk_text_draw once, starting from the next the
 710         // klass::draw will already be wxgtk_text_draw
 711         if ( !gs_gtk_text_draw )
 712         {
 713             GtkDrawCallback&
 714                 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
 715
 716             gs_gtk_text_draw = draw;
 717
 718             draw = wxgtk_text_draw;
 719         }
 720     }
 721 #endif // GTK+ 1.x
 722
 723     if (!value.empty())
 724     {
 725 #ifdef __WXGTK20__
 726         SetValue( value );
 727 #else
 728
 729 #if !GTK_CHECK_VERSION(1, 2, 0)
 730         // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
 731         // gtk_editable_insert_text()
 732         gtk_widget_realize(m_text);
 733 #endif // GTK 1.0
 734
 735         gint tmp = 0;
 736 #if wxUSE_UNICODE
 737         wxWX2MBbuf val = value.mbc_str();
 738         gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
 739 #else
 740         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 741 #endif
 742
 743         if (multi_line)
 744         {
 745             // Bring editable's cursor uptodate. Bug in GTK.
 746             SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
 747         }
 748
 749 #endif
 750     }
 751
 752     if (style & wxTE_PASSWORD)
 753     {
 754         if (!multi_line)
 755             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 756     }
 757
 758     if (style & wxTE_READONLY)
 759     {
 760         if (!multi_line)
 761             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 762 #ifdef __WXGTK20__
 763         else
 764             gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
 765 #else
 766     }
 767     else
 768     {
 769         if (multi_line)
 770             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 771 #endif
 772     }
 773
 774 #ifdef __WXGTK20__
 775     if (multi_line)
 776     {
 777         if (style & wxTE_RIGHT)
 778             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
 779         else if (style & wxTE_CENTRE)
 780             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
 781         // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
 782     }
 783     else
 784     {
 785 #ifdef __WXGTK24__
 786         // gtk_entry_set_alignment was introduced in gtk+-2.3.5
 787         if (!gtk_check_version(2,4,0))
 788         {
 789             if (style & wxTE_RIGHT)
 790                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
 791             else if (style & wxTE_CENTRE)
 792                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
 793         }
 794 #endif
 795     }
 796 #endif // __WXGTK20__
 797
 798     // We want to be notified about text changes.
 799 #ifdef __WXGTK20__
 800     if (multi_line)
 801     {
 802         g_signal_connect( G_OBJECT(m_buffer), "changed",
 803             GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 804
 805         // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
 806         if (style & wxTE_AUTO_URL)
 807         {
 808             GtkTextIter start, end;
 809             m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
 810             m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
 811
 812             // We create our wxUrl tag here for slight efficiency gain - we
 813             // don't have to check for the tag existance in callbacks,
 814             // hereby it's guaranteed to exist.
 815             gtk_text_buffer_create_tag(m_buffer, "wxUrl",
 816                                        "foreground", "blue",
 817                                        "underline", PANGO_UNDERLINE_SINGLE,
 818                                        NULL);
 819
 820             // Check for URLs after each text change
 821             g_signal_connect_after( G_OBJECT(m_buffer), "insert_text",
 822                 GTK_SIGNAL_FUNC(au_insert_text_callback), (gpointer)this);
 823             g_signal_connect_after( G_OBJECT(m_buffer), "delete_range",
 824                 GTK_SIGNAL_FUNC(au_delete_range_callback), (gpointer)this);
 825
 826             // Block all wxUrl tag applying unless we do it ourselves, in which case we
 827             // block this callback temporarily. This takes care of gtk+ internal
 828             // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
 829             // which is undesired because only a part of the URL might be copied.
 830             // The insert-text signal emitted inside it will take care of newly formed
 831             // or wholly copied URLs.
 832             g_signal_connect( G_OBJECT(m_buffer), "apply_tag",
 833                 GTK_SIGNAL_FUNC(au_apply_tag_callback), NULL);
 834
 835             // Check for URLs in the initial string passed to Create
 836             gtk_text_buffer_get_start_iter(m_buffer, &start);
 837             gtk_text_buffer_get_end_iter(m_buffer, &end);
 838             au_check_range(&start, &end);
 839         }
 840     }
 841     else
 842 #endif
 843
 844     {
 845         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 846             GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 847     }
 848
 849     m_cursor = wxCursor( wxCURSOR_IBEAM );
 850
 851     wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
 852     SetDefaultStyle( attrDef );
 853
 854     return true;
 855 }
 856
 857
 858 void wxTextCtrl::CalculateScrollbar()
 859 {
 860 #ifndef __WXGTK20__
 861     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 862
 863     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 864
 865     if (adj->upper - adj->page_size < 0.8)
 866     {
 867         if (m_vScrollbarVisible)
 868         {
 869             gtk_widget_hide( m_vScrollbar );
 870             m_vScrollbarVisible = false;
 871         }
 872     }
 873     else
 874     {
 875         if (!m_vScrollbarVisible)
 876         {
 877             gtk_widget_show( m_vScrollbar );
 878             m_vScrollbarVisible = true;
 879         }
 880     }
 881 #endif
 882 }
 883
 884 wxString wxTextCtrl::GetValue() const
 885 {
 886     wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
 887
 888     wxString tmp;
 889     if (m_windowStyle & wxTE_MULTILINE)
 890     {
 891 #ifdef __WXGTK20__
 892         GtkTextIter start;
 893         gtk_text_buffer_get_start_iter( m_buffer, &start );
 894         GtkTextIter end;
 895         gtk_text_buffer_get_end_iter( m_buffer, &end );
 896         gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
 897
 898 #if wxUSE_UNICODE
 899         wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
 900 #else
 901         wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
 902 #endif
 903         if ( buffer )
 904             tmp = buffer;
 905
 906         g_free( text );
 907 #else
 908         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 909         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 910         tmp = text;
 911         g_free( text );
 912 #endif
 913     }
 914     else
 915     {
 916         tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
 917     }
 918
 919     return tmp;
 920 }
 921
 922 void wxTextCtrl::SetValue( const wxString &value )
 923 {
 924     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 925
 926     if (m_windowStyle & wxTE_MULTILINE)
 927     {
 928 #ifdef __WXGTK20__
 929
 930 #if wxUSE_UNICODE
 931         wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
 932 #else
 933         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
 934 #endif
 935         if (gtk_text_buffer_get_char_count(m_buffer) != 0)
 936             IgnoreNextTextUpdate();
 937
 938         if ( !buffer )
 939         {
 940             // what else can we do? at least don't crash...
 941             return;
 942         }
 943
 944         gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
 945
 946 #else
 947         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 948         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 949         len = 0;
 950         gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
 951 #endif
 952     }
 953     else
 954     {
 955         gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
 956     }
 957
 958     // GRG, Jun/2000: Changed this after a lot of discussion in
 959     //   the lists. wxWidgets 2.2 will have a set of flags to
 960     //   customize this behaviour.
 961     SetInsertionPoint(0);
 962
 963     m_modified = false;
 964 }
 965
 966 void wxTextCtrl::WriteText( const wxString &text )
 967 {
 968     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 969
 970     if ( text.empty() )
 971         return;
 972
 973     // gtk_text_changed_callback() will set m_modified to true but m_modified
 974     // shouldn't be changed by the program writing to the text control itself,
 975     // so save the old value and restore when we're done
 976     bool oldModified = m_modified;
 977
 978     if ( m_windowStyle & wxTE_MULTILINE )
 979     {
 980 #ifdef __WXGTK20__
 981
 982 #if wxUSE_UNICODE
 983         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
 984 #else
 985         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
 986 #endif
 987         if ( !buffer )
 988         {
 989             // what else can we do? at least don't crash...
 990             return;
 991         }
 992
 993         // TODO: Call whatever is needed to delete the selection.
 994         wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
 995
 996         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
 997         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
 998         if ( adj->value == adj->upper - adj->page_size )
 999         {
1000             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
1001                     gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
1002         }
1003 #else // GTK 1.x
1004         // After cursor movements, gtk_text_get_point() is wrong by one.
1005         gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
1006
1007         // always use m_defaultStyle, even if it is empty as otherwise
1008         // resetting the style and appending some more text wouldn't work: if
1009         // we don't specify the style explicitly, the old style would be used
1010         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
1011         wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
1012
1013         // we called wxGtkTextInsert with correct font, no need to do anything
1014         // in UpdateFontIfNeeded() any longer
1015         if ( !text.empty() )
1016         {
1017             SetUpdateFont(false);
1018         }
1019
1020         // Bring editable's cursor back uptodate.
1021         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1022 #endif // GTK 1.x/2.0
1023     }
1024     else // single line
1025     {
1026         // First remove the selection if there is one
1027         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
1028
1029         // This moves the cursor pos to behind the inserted text.
1030         gint len = GET_EDITABLE_POS(m_text);
1031
1032 #ifdef __WXGTK20__
1033
1034 #if wxUSE_UNICODE
1035         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
1036 #else
1037         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
1038 #endif
1039         if ( !buffer )
1040         {
1041             // what else can we do? at least don't crash...
1042             return;
1043         }
1044
1045         gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
1046
1047 #else
1048         gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
1049 #endif
1050
1051         // Bring entry's cursor uptodate.
1052         gtk_entry_set_position( GTK_ENTRY(m_text), len );
1053     }
1054
1055     m_modified = oldModified;
1056 }
1057
1058 void wxTextCtrl::AppendText( const wxString &text )
1059 {
1060     SetInsertionPointEnd();
1061     WriteText( text );
1062 }
1063
1064 wxString wxTextCtrl::GetLineText( long lineNo ) const
1065 {
1066     if (m_windowStyle & wxTE_MULTILINE)
1067     {
1068 #ifndef __WXGTK20__
1069         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1070         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1071
1072         if (text)
1073         {
1074             wxString buf;
1075             long i;
1076             int currentLine = 0;
1077             for (i = 0; currentLine != lineNo && text[i]; i++ )
1078                 if (text[i] == '\n')
1079             currentLine++;
1080             // Now get the text
1081             int j;
1082             for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
1083                 buf += text[i];
1084
1085             g_free( text );
1086             return buf;
1087         }
1088         else
1089         {
1090             return wxEmptyString;
1091         }
1092 #else
1093         GtkTextIter line;
1094         gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1095         GtkTextIter end;
1096         gtk_text_buffer_get_end_iter(m_buffer,&end );
1097         gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
1098         wxString result(wxGTK_CONV_BACK(text));
1099         g_free(text);
1100         return result.BeforeFirst(wxT('\n'));
1101 #endif
1102     }
1103     else
1104     {
1105         if (lineNo == 0) return GetValue();
1106         return wxEmptyString;
1107     }
1108 }
1109
1110 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1111 {
1112   /* If you implement this, don't forget to update the documentation!
1113    * (file docs/latex/wx/text.tex) */
1114     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1115 }
1116
1117 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1118 {
1119     if ( m_windowStyle & wxTE_MULTILINE )
1120     {
1121         wxString text = GetValue();
1122
1123         // cast to prevent warning. But pos really should've been unsigned.
1124         if( (unsigned long)pos > text.Len()  )
1125             return false;
1126
1127         *x=0;   // First Col
1128         *y=0;   // First Line
1129
1130         const wxChar* stop = text.c_str() + pos;
1131         for ( const wxChar *p = text.c_str(); p < stop; p++ )
1132         {
1133             if (*p == wxT('\n'))
1134             {
1135                 (*y)++;
1136                 *x=0;
1137             }
1138             else
1139                 (*x)++;
1140         }
1141     }
1142     else // single line control
1143     {
1144         if ( pos <= GTK_ENTRY(m_text)->text_length )
1145         {
1146             *y = 0;
1147             *x = pos;
1148         }
1149         else
1150         {
1151             // index out of bounds
1152             return false;
1153         }
1154     }
1155
1156     return true;
1157 }
1158
1159 long wxTextCtrl::XYToPosition(long x, long y ) const
1160 {
1161     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
1162
1163     long pos=0;
1164     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
1165
1166     pos += x;
1167     return pos;
1168 }
1169
1170 int wxTextCtrl::GetLineLength(long lineNo) const
1171 {
1172     wxString str = GetLineText (lineNo);
1173     return (int) str.Length();
1174 }
1175
1176 int wxTextCtrl::GetNumberOfLines() const
1177 {
1178     if (m_windowStyle & wxTE_MULTILINE)
1179     {
1180 #ifdef __WXGTK20__
1181         return gtk_text_buffer_get_line_count( m_buffer );
1182 #else
1183         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1184         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1185
1186         if (text)
1187         {
1188             int currentLine = 0;
1189             for (int i = 0; i < len; i++ )
1190             {
1191                 if (text[i] == '\n')
1192                     currentLine++;
1193             }
1194             g_free( text );
1195
1196             // currentLine is 0 based, add 1 to get number of lines
1197             return currentLine + 1;
1198         }
1199         else
1200         {
1201             return 0;
1202         }
1203 #endif
1204     }
1205     else
1206     {
1207         return 1;
1208     }
1209 }
1210
1211 void wxTextCtrl::SetInsertionPoint( long pos )
1212 {
1213     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1214
1215     if ( IsMultiLine() )
1216     {
1217 #ifdef __WXGTK20__
1218         GtkTextIter iter;
1219         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1220         gtk_text_buffer_place_cursor( m_buffer, &iter );
1221         gtk_text_view_scroll_mark_onscreen
1222         (
1223             GTK_TEXT_VIEW(m_text),
1224             gtk_text_buffer_get_insert( m_buffer )
1225         );
1226 #else // GTK+ 1.x
1227         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
1228           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1229
1230         /* we fake a set_point by inserting and deleting. as the user
1231            isn't supposed to get to know about this non-sense, we
1232            disconnect so that no events are sent to the user program. */
1233
1234         gint tmp = (gint)pos;
1235         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
1236         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
1237
1238         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
1239           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1240
1241         // bring editable's cursor uptodate. Bug in GTK.
1242         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1243 #endif // GTK+ 2/1
1244     }
1245     else
1246     {
1247         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
1248
1249         // Bring editable's cursor uptodate. Bug in GTK.
1250         SET_EDITABLE_POS(m_text, (guint32)pos);
1251     }
1252 }
1253
1254 void wxTextCtrl::SetInsertionPointEnd()
1255 {
1256     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1257
1258     if (m_windowStyle & wxTE_MULTILINE)
1259     {
1260 #ifdef __WXGTK20__
1261         GtkTextIter end;
1262         gtk_text_buffer_get_end_iter( m_buffer, &end );
1263         gtk_text_buffer_place_cursor( m_buffer, &end );
1264 #else
1265         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
1266 #endif
1267     }
1268     else
1269     {
1270         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
1271     }
1272 }
1273
1274 void wxTextCtrl::SetEditable( bool editable )
1275 {
1276     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1277
1278     if (m_windowStyle & wxTE_MULTILINE)
1279     {
1280 #ifdef __WXGTK20__
1281         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1282 #else
1283         gtk_text_set_editable( GTK_TEXT(m_text), editable );
1284 #endif
1285     }
1286     else
1287     {
1288         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
1289     }
1290 }
1291
1292 bool wxTextCtrl::Enable( bool enable )
1293 {
1294     if (!wxWindowBase::Enable(enable))
1295     {
1296         // nothing to do
1297         return false;
1298     }
1299
1300     if (m_windowStyle & wxTE_MULTILINE)
1301     {
1302 #ifdef __WXGTK20__
1303         SetEditable( enable );
1304 #else
1305         gtk_text_set_editable( GTK_TEXT(m_text), enable );
1306         OnParentEnable(enable);
1307 #endif
1308     }
1309     else
1310     {
1311         gtk_widget_set_sensitive( m_text, enable );
1312     }
1313
1314     return true;
1315 }
1316
1317 // wxGTK-specific: called recursively by Enable,
1318 // to give widgets an oppprtunity to correct their colours after they
1319 // have been changed by Enable
1320 void wxTextCtrl::OnParentEnable( bool enable )
1321 {
1322     // If we have a custom background colour, we use this colour in both
1323     // disabled and enabled mode, or we end up with a different colour under the
1324     // text.
1325     wxColour oldColour = GetBackgroundColour();
1326     if (oldColour.Ok())
1327     {
1328         // Need to set twice or it'll optimize the useful stuff out
1329         if (oldColour == * wxWHITE)
1330             SetBackgroundColour(*wxBLACK);
1331         else
1332             SetBackgroundColour(*wxWHITE);
1333         SetBackgroundColour(oldColour);
1334     }
1335 }
1336
1337 void wxTextCtrl::MarkDirty()
1338 {
1339     m_modified = true;
1340 }
1341
1342 void wxTextCtrl::DiscardEdits()
1343 {
1344     m_modified = false;
1345 }
1346
1347 // ----------------------------------------------------------------------------
1348 // max text length support
1349 // ----------------------------------------------------------------------------
1350
1351 void wxTextCtrl::IgnoreNextTextUpdate()
1352 {
1353     m_ignoreNextUpdate = true;
1354 }
1355
1356 bool wxTextCtrl::IgnoreTextUpdate()
1357 {
1358     if ( m_ignoreNextUpdate )
1359     {
1360         m_ignoreNextUpdate = false;
1361
1362         return true;
1363     }
1364
1365     return false;
1366 }
1367
1368 void wxTextCtrl::SetMaxLength(unsigned long len)
1369 {
1370     if ( !HasFlag(wxTE_MULTILINE) )
1371     {
1372         gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1373
1374         // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1375         // we had tried to enter more text than allowed by max text length and
1376         // the text wasn't really changed
1377         //
1378         // to detect this and generate TEXT_MAXLEN event instead of
1379         // TEXT_CHANGED one in this case we also catch "insert_text" signal
1380         //
1381         // when max len is set to 0 we disconnect our handler as it means that
1382         // we shouldn't check anything any more
1383         if ( len )
1384         {
1385             gtk_signal_connect( GTK_OBJECT(m_text),
1386                                 "insert_text",
1387                                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1388                                 (gpointer)this);
1389         }
1390         else // no checking
1391         {
1392             gtk_signal_disconnect_by_func
1393             (
1394                 GTK_OBJECT(m_text),
1395                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1396                 (gpointer)this
1397             );
1398         }
1399     }
1400 }
1401
1402 void wxTextCtrl::SetSelection( long from, long to )
1403 {
1404     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1405
1406     if (from == -1 && to == -1)
1407     {
1408         from = 0;
1409         to = GetValue().Length();
1410     }
1411
1412 #ifndef __WXGTK20__
1413     if ( (m_windowStyle & wxTE_MULTILINE) &&
1414          !GTK_TEXT(m_text)->line_start_cache )
1415     {
1416         // tell the programmer that it didn't work
1417         wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1418         return;
1419     }
1420 #endif
1421
1422     if (m_windowStyle & wxTE_MULTILINE)
1423     {
1424 #ifdef __WXGTK20__
1425         GtkTextIter fromi, toi;
1426         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1427         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1428
1429         gtk_text_buffer_place_cursor( m_buffer, &toi );
1430         gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1431 #else
1432         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1433 #endif
1434     }
1435     else
1436     {
1437         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1438     }
1439 }
1440
1441 void wxTextCtrl::ShowPosition( long pos )
1442 {
1443     if (m_windowStyle & wxTE_MULTILINE)
1444     {
1445 #ifdef __WXGTK20__
1446         GtkTextIter iter;
1447         gtk_text_buffer_get_start_iter( m_buffer, &iter );
1448         gtk_text_iter_set_offset( &iter, pos );
1449         GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1450         gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1451 #else // GTK 1.x
1452         GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1453         float totalLines =  (float) GetNumberOfLines();
1454         long posX;
1455         long posY;
1456         PositionToXY(pos, &posX, &posY);
1457         float posLine = (float) posY;
1458         float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1459         gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1460 #endif // GTK 1.x/2.x
1461     }
1462 }
1463
1464 #ifdef __WXGTK20__
1465
1466 wxTextCtrlHitTestResult
1467 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1468 {
1469     if ( !IsMultiLine() )
1470     {
1471         // not supported
1472         return wxTE_HT_UNKNOWN;
1473     }
1474
1475     int x, y;
1476     gtk_text_view_window_to_buffer_coords
1477     (
1478         GTK_TEXT_VIEW(m_text),
1479         GTK_TEXT_WINDOW_TEXT,
1480         pt.x, pt.y,
1481         &x, &y
1482     );
1483
1484     GtkTextIter iter;
1485     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1486     if ( pos )
1487         *pos = gtk_text_iter_get_offset(&iter);
1488
1489     return wxTE_HT_ON_TEXT;
1490 }
1491
1492 #endif // __WXGTK20__
1493
1494 long wxTextCtrl::GetInsertionPoint() const
1495 {
1496     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1497
1498 #ifdef __WXGTK20__
1499     if (m_windowStyle & wxTE_MULTILINE)
1500     {
1501         // There is no direct accessor for the cursor, but
1502         // internally, the cursor is the "mark" called
1503         // "insert" in the text view's btree structure.
1504
1505         GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1506         GtkTextIter cursor;
1507         gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1508
1509         return gtk_text_iter_get_offset( &cursor );
1510     }
1511     else
1512 #endif
1513     {
1514     return (long) GET_EDITABLE_POS(m_text);
1515     }
1516 }
1517
1518 wxTextPos wxTextCtrl::GetLastPosition() const
1519 {
1520     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1521
1522     int pos = 0;
1523
1524     if (m_windowStyle & wxTE_MULTILINE)
1525     {
1526 #ifdef __WXGTK20__
1527         GtkTextIter end;
1528         gtk_text_buffer_get_end_iter( m_buffer, &end );
1529
1530         pos = gtk_text_iter_get_offset( &end );
1531 #else
1532         pos = gtk_text_get_length( GTK_TEXT(m_text) );
1533 #endif
1534     }
1535     else
1536     {
1537         pos = GTK_ENTRY(m_text)->text_length;
1538     }
1539
1540     return (long)pos;
1541 }
1542
1543 void wxTextCtrl::Remove( long from, long to )
1544 {
1545     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1546
1547 #ifdef __WXGTK20__
1548     if (m_windowStyle & wxTE_MULTILINE)
1549     {
1550         GtkTextIter fromi, toi;
1551         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1552         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1553
1554         gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1555     }
1556     else // single line
1557 #endif
1558     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1559 }
1560
1561 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1562 {
1563     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1564
1565     Remove( from, to );
1566
1567     if (!value.empty())
1568     {
1569 #ifdef __WXGTK20__
1570         SetInsertionPoint( from );
1571         WriteText( value );
1572 #else // GTK 1.x
1573         gint pos = (gint)from;
1574 #if wxUSE_UNICODE
1575         wxWX2MBbuf buf = value.mbc_str();
1576         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1577 #else
1578         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1579 #endif // wxUSE_UNICODE
1580 #endif // GTK 1.x/2.x
1581     }
1582 }
1583
1584 void wxTextCtrl::Cut()
1585 {
1586     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1587
1588 #ifdef __WXGTK20__
1589     if (m_windowStyle & wxTE_MULTILINE)
1590         g_signal_emit_by_name(m_text, "cut-clipboard");
1591     else
1592 #endif
1593         gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1594 }
1595
1596 void wxTextCtrl::Copy()
1597 {
1598     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1599
1600 #ifdef __WXGTK20__
1601     if (m_windowStyle & wxTE_MULTILINE)
1602         g_signal_emit_by_name(m_text, "copy-clipboard");
1603     else
1604 #endif
1605         gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1606 }
1607
1608 void wxTextCtrl::Paste()
1609 {
1610     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1611
1612 #ifdef __WXGTK20__
1613     if (m_windowStyle & wxTE_MULTILINE)
1614         g_signal_emit_by_name(m_text, "paste-clipboard");
1615     else
1616 #endif
1617         gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1618 }
1619
1620 // Undo/redo
1621 void wxTextCtrl::Undo()
1622 {
1623     // TODO
1624     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1625 }
1626
1627 void wxTextCtrl::Redo()
1628 {
1629     // TODO
1630     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1631 }
1632
1633 bool wxTextCtrl::CanUndo() const
1634 {
1635     // TODO
1636     //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1637     return false;
1638 }
1639
1640 bool wxTextCtrl::CanRedo() const
1641 {
1642     // TODO
1643     //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1644     return false;
1645 }
1646
1647 // If the return values from and to are the same, there is no
1648 // selection.
1649 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1650 {
1651     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1652
1653     gint from = -1;
1654     gint to = -1;
1655     bool haveSelection = false;
1656
1657 #ifdef __WXGTK20__
1658      if (m_windowStyle & wxTE_MULTILINE)
1659      {
1660          GtkTextIter ifrom, ito;
1661          if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1662          {
1663              haveSelection = true;
1664              from = gtk_text_iter_get_offset(&ifrom);
1665              to = gtk_text_iter_get_offset(&ito);
1666          }
1667      }
1668      else  // not multi-line
1669      {
1670          if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1671                                                  &from, &to) )
1672          {
1673              haveSelection = true;
1674          }
1675      }
1676 #else //  not GTK2
1677      if ( (GTK_EDITABLE(m_text)->has_selection) )
1678      {
1679          haveSelection = true;
1680          from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1681          to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1682      }
1683 #endif
1684
1685      if (! haveSelection )
1686           from = to = GetInsertionPoint();
1687
1688      if ( from > to )
1689      {
1690          // exchange them to be compatible with wxMSW
1691          gint tmp = from;
1692          from = to;
1693          to = tmp;
1694      }
1695
1696     if ( fromOut )
1697         *fromOut = from;
1698     if ( toOut )
1699         *toOut = to;
1700 }
1701
1702
1703 bool wxTextCtrl::IsEditable() const
1704 {
1705     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1706
1707 #ifdef __WXGTK20__
1708     if (m_windowStyle & wxTE_MULTILINE)
1709     {
1710         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1711     }
1712     else
1713     {
1714         return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1715     }
1716 #else
1717     return GTK_EDITABLE(m_text)->editable;
1718 #endif
1719 }
1720
1721 bool wxTextCtrl::IsModified() const
1722 {
1723     return m_modified;
1724 }
1725
1726 void wxTextCtrl::Clear()
1727 {
1728     SetValue( wxEmptyString );
1729 }
1730
1731 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1732 {
1733     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1734
1735     if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1736     {
1737         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1738         event.SetEventObject(this);
1739         event.SetString(GetValue());
1740         if (GetEventHandler()->ProcessEvent(event)) return;
1741     }
1742
1743     if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1744     {
1745         // This will invoke the dialog default action, such
1746         // as the clicking the default button.
1747
1748         wxWindow *top_frame = m_parent;
1749         while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1750             top_frame = top_frame->GetParent();
1751
1752         if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1753         {
1754             GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1755
1756             if (window->default_widget)
1757             {
1758                 gtk_widget_activate (window->default_widget);
1759                 return;
1760             }
1761         }
1762     }
1763
1764     key_event.Skip();
1765 }
1766
1767 GtkWidget* wxTextCtrl::GetConnectWidget()
1768 {
1769     return GTK_WIDGET(m_text);
1770 }
1771
1772 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1773 {
1774     if (m_windowStyle & wxTE_MULTILINE)
1775     {
1776 #ifdef __WXGTK20__
1777         return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT );  // pure guesswork
1778 #else
1779         return (window == GTK_TEXT(m_text)->text_area);
1780 #endif
1781     }
1782     else
1783     {
1784         return (window == GTK_ENTRY(m_text)->text_area);
1785     }
1786 }
1787
1788 // the font will change for subsequent text insertiongs
1789 bool wxTextCtrl::SetFont( const wxFont &font )
1790 {
1791     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1792
1793     if ( !wxTextCtrlBase::SetFont(font) )
1794     {
1795         // font didn't change, nothing to do
1796         return false;
1797     }
1798
1799     if ( m_windowStyle & wxTE_MULTILINE )
1800     {
1801         SetUpdateFont(true);
1802
1803         m_defaultStyle.SetFont(font);
1804
1805         ChangeFontGlobally();
1806     }
1807
1808     return true;
1809 }
1810
1811 void wxTextCtrl::ChangeFontGlobally()
1812 {
1813     // this method is very inefficient and hence should be called as rarely as
1814     // possible!
1815     //
1816     // TODO: it can be implemented much more efficiently for GTK2
1817 #ifndef __WXGTK20__
1818     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1819
1820                   _T("shouldn't be called for single line controls") );
1821 #else
1822     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1823                   _T("shouldn't be called for single line controls") );
1824 #endif
1825
1826     wxString value = GetValue();
1827     if ( !value.empty() )
1828     {
1829         SetUpdateFont(false);
1830
1831         Clear();
1832         AppendText(value);
1833     }
1834 }
1835
1836 #ifndef __WXGTK20__
1837
1838 void wxTextCtrl::UpdateFontIfNeeded()
1839 {
1840     if ( m_updateFont )
1841         ChangeFontGlobally();
1842 }
1843
1844 #endif // GTK+ 1.x
1845
1846 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1847 {
1848     if ( !wxControl::SetForegroundColour(colour) )
1849         return false;
1850
1851     // update default fg colour too
1852     m_defaultStyle.SetTextColour(colour);
1853
1854     return true;
1855 }
1856
1857 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1858 {
1859     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1860
1861     if ( !wxControl::SetBackgroundColour( colour ) )
1862         return false;
1863
1864 #ifndef __WXGTK20__
1865     if (!m_widget->window)
1866         return false;
1867 #endif
1868
1869     if (!m_backgroundColour.Ok())
1870         return false;
1871
1872     if (m_windowStyle & wxTE_MULTILINE)
1873     {
1874 #ifndef __WXGTK20__
1875         GdkWindow *window = GTK_TEXT(m_text)->text_area;
1876         if (!window)
1877             return false;
1878         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1879         gdk_window_set_background( window, m_backgroundColour.GetColor() );
1880         gdk_window_clear( window );
1881 #endif
1882     }
1883
1884     // change active background color too
1885     m_defaultStyle.SetBackgroundColour( colour );
1886
1887     return true;
1888 }
1889
1890 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1891 {
1892     if ( m_windowStyle & wxTE_MULTILINE )
1893     {
1894         if ( style.IsDefault() )
1895         {
1896             // nothing to do
1897             return true;
1898         }
1899
1900 #ifdef __WXGTK20__
1901         gint l = gtk_text_buffer_get_char_count( m_buffer );
1902
1903         wxCHECK_MSG( start >= 0 && end <= l, false,
1904                      _T("invalid range in wxTextCtrl::SetStyle") );
1905
1906         GtkTextIter starti, endi;
1907         gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1908         gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1909
1910         // use the attributes from style which are set in it and fall back
1911         // first to the default style and then to the text control default
1912         // colours for the others
1913         wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1914
1915         wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1916 #else
1917         // VERY dirty way to do that - removes the required text and re-adds it
1918         // with styling (FIXME)
1919
1920         gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1921
1922         wxCHECK_MSG( start >= 0 && end <= l, false,
1923                      _T("invalid range in wxTextCtrl::SetStyle") );
1924
1925         gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1926         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1927         wxString tmp(text,*wxConvCurrent);
1928         g_free( text );
1929
1930         gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1931         gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1932
1933     #if wxUSE_UNICODE
1934         wxWX2MBbuf buf = tmp.mbc_str();
1935         const char *txt = buf;
1936         size_t txtlen = strlen(buf);
1937     #else
1938         const char *txt = tmp;
1939         size_t txtlen = tmp.length();
1940     #endif
1941
1942         // use the attributes from style which are set in it and fall back
1943         // first to the default style and then to the text control default
1944         // colours for the others
1945         wxGtkTextInsert(m_text,
1946                         wxTextAttr::Combine(style, m_defaultStyle, this),
1947                         txt,
1948                         txtlen);
1949
1950         /* does not seem to help under GTK+ 1.2 !!!
1951         gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1952         SetInsertionPoint( old_pos );
1953 #endif
1954
1955         return true;
1956     }
1957
1958     // else single line
1959     // cannot do this for GTK+'s Entry widget
1960     return false;
1961 }
1962
1963 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1964 {
1965     gtk_widget_modify_style(m_text, style);
1966 }
1967
1968 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1969 {
1970     Cut();
1971 }
1972
1973 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1974 {
1975     Copy();
1976 }
1977
1978 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1979 {
1980     Paste();
1981 }
1982
1983 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1984 {
1985     Undo();
1986 }
1987
1988 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1989 {
1990     Redo();
1991 }
1992
1993 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1994 {
1995     event.Enable( CanCut() );
1996 }
1997
1998 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1999 {
2000     event.Enable( CanCopy() );
2001 }
2002
2003 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
2004 {
2005     event.Enable( CanPaste() );
2006 }
2007
2008 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
2009 {
2010     event.Enable( CanUndo() );
2011 }
2012
2013 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
2014 {
2015     event.Enable( CanRedo() );
2016 }
2017
2018 void wxTextCtrl::OnInternalIdle()
2019 {
2020     wxCursor cursor = m_cursor;
2021     if (g_globalCursor.Ok()) cursor = g_globalCursor;
2022
2023     if (cursor.Ok())
2024     {
2025 #ifndef __WXGTK20__
2026         GdkWindow *window = (GdkWindow*) NULL;
2027         if (HasFlag(wxTE_MULTILINE))
2028             window = GTK_TEXT(m_text)->text_area;
2029         else
2030             window = GTK_ENTRY(m_text)->text_area;
2031
2032         if (window)
2033             gdk_window_set_cursor( window, cursor.GetCursor() );
2034
2035         if (!g_globalCursor.Ok())
2036             cursor = *wxSTANDARD_CURSOR;
2037
2038         window = m_widget->window;
2039         if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2040             gdk_window_set_cursor( window, cursor.GetCursor() );
2041 #endif
2042     }
2043
2044     if (g_delayedFocus == this)
2045     {
2046         if (GTK_WIDGET_REALIZED(m_widget))
2047         {
2048             gtk_widget_grab_focus( m_widget );
2049             g_delayedFocus = NULL;
2050         }
2051     }
2052
2053     if (wxUpdateUIEvent::CanUpdate(this))
2054         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2055 }
2056
2057 wxSize wxTextCtrl::DoGetBestSize() const
2058 {
2059     // FIXME should be different for multi-line controls...
2060     wxSize ret( wxControl::DoGetBestSize() );
2061     wxSize best(80, ret.y);
2062     CacheBestSize(best);
2063     return best;
2064 }
2065
2066 // ----------------------------------------------------------------------------
2067 // freeze/thaw
2068 // ----------------------------------------------------------------------------
2069
2070 void wxTextCtrl::Freeze()
2071 {
2072     if ( HasFlag(wxTE_MULTILINE) )
2073     {
2074 #ifdef __WXGTK20__
2075         if ( !m_frozenness++ )
2076         {
2077             // freeze textview updates and remove buffer
2078             g_signal_connect( G_OBJECT(m_text), "expose_event",
2079                 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2080             g_signal_connect( G_OBJECT(m_widget), "expose_event",
2081                 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2082             gtk_widget_set_sensitive(m_widget, false);
2083             g_object_ref(m_buffer);
2084             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
2085     }
2086 #else
2087         gtk_text_freeze(GTK_TEXT(m_text));
2088 #endif
2089     }
2090 }
2091
2092 void wxTextCtrl::Thaw()
2093 {
2094     if ( HasFlag(wxTE_MULTILINE) )
2095     {
2096 #ifdef __WXGTK20__
2097         wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
2098
2099         if ( !--m_frozenness )
2100         {
2101             // Reattach buffer and thaw textview updates
2102             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
2103             g_object_unref(m_buffer);
2104             gtk_widget_set_sensitive(m_widget, true);
2105             g_signal_handlers_disconnect_by_func(m_widget, (gpointer)gtk_text_exposed_callback, this);
2106             g_signal_handlers_disconnect_by_func(m_text, (gpointer)gtk_text_exposed_callback, this);
2107         }
2108 #else
2109         GTK_TEXT(m_text)->vadj->value = 0.0;
2110
2111         gtk_text_thaw(GTK_TEXT(m_text));
2112 #endif
2113     }
2114 }
2115
2116 // ----------------------------------------------------------------------------
2117 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
2118 // ----------------------------------------------------------------------------
2119
2120 #ifdef __WXGTK20__
2121
2122 // FIXME: when dragging on a link the sample gets an "Unknown event".
2123 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
2124 // a buggy sample, or something else
2125 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
2126 {
2127     event.Skip();
2128     if(!(m_windowStyle & wxTE_AUTO_URL))
2129         return;
2130
2131     gint x, y;
2132     GtkTextIter start, end;
2133     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
2134                                                 "wxUrl");
2135
2136     gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
2137                                           event.GetX(), event.GetY(), &x, &y);
2138
2139     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
2140     if (!gtk_text_iter_has_tag(&end, tag))
2141     {
2142         gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2143                               GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
2144         return;
2145     }
2146
2147     gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2148                           GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
2149
2150     start = end;
2151     if(!gtk_text_iter_begins_tag(&start, tag))
2152         gtk_text_iter_backward_to_tag_toggle(&start, tag);
2153     if(!gtk_text_iter_ends_tag(&end, tag))
2154         gtk_text_iter_forward_to_tag_toggle(&end, tag);
2155
2156     // Native context menu is probably not desired on an URL.
2157     // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
2158     if(event.GetEventType() == wxEVT_RIGHT_DOWN)
2159         event.Skip(false);
2160
2161     wxTextUrlEvent url_event(m_windowId, event,
2162                              gtk_text_iter_get_offset(&start),
2163                              gtk_text_iter_get_offset(&end));
2164
2165     InitCommandEvent(url_event);
2166     // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
2167     //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
2168     GetEventHandler()->ProcessEvent(url_event);
2169 }
2170 #endif // gtk2
2171
2172 // ----------------------------------------------------------------------------
2173 // scrolling
2174 // ----------------------------------------------------------------------------
2175
2176 GtkAdjustment *wxTextCtrl::GetVAdj() const
2177 {
2178     if ( !IsMultiLine() )
2179         return NULL;
2180
2181 #ifdef __WXGTK20__
2182     return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
2183 #else
2184     return GTK_TEXT(m_text)->vadj;
2185 #endif
2186 }
2187
2188 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
2189 {
2190     float value = adj->value + diff;
2191
2192     if ( value < 0 )
2193         value = 0;
2194
2195     float upper = adj->upper - adj->page_size;
2196     if ( value > upper )
2197         value = upper;
2198
2199     // did we noticeably change the scroll position?
2200     if ( fabs(adj->value - value) < 0.2 )
2201     {
2202         // well, this is what Robert does in wxScrollBar, so it must be good...
2203         return false;
2204     }
2205
2206     adj->value = value;
2207
2208 #ifdef __WXGTK20__
2209     gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
2210 #else
2211     gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
2212 #endif
2213
2214     return true;
2215 }
2216
2217 bool wxTextCtrl::ScrollLines(int lines)
2218 {
2219     GtkAdjustment *adj = GetVAdj();
2220     if ( !adj )
2221         return false;
2222
2223 #ifdef __WXGTK20__
2224     int diff = (int)ceil(lines*adj->step_increment);
2225 #else
2226     // this is hardcoded to 10 in GTK+ 1.2 (great idea)
2227     int diff = 10*lines;
2228 #endif
2229
2230     return DoScroll(adj, diff);
2231 }
2232
2233 bool wxTextCtrl::ScrollPages(int pages)
2234 {
2235     GtkAdjustment *adj = GetVAdj();
2236     if ( !adj )
2237         return false;
2238
2239     return DoScroll(adj, (int)ceil(pages*adj->page_increment));
2240 }
2241
2242
2243 // static
2244 wxVisualAttributes
2245 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
2246 {
2247     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
2248 }