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