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 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #include "wx/textctrl.h"
  14 #include "wx/utils.h"
  15 #include "wx/intl.h"
  16 #include "wx/log.h"
  17 #include "wx/settings.h"
  18 #include "wx/panel.h"
  19 #include "wx/strconv.h"
  20 #include "wx/fontutil.h"        // for wxNativeFontInfo (GetNativeFontInfo())
  21
  22 #include <sys/types.h>
  23 #include <sys/stat.h>
  24 #include <ctype.h>
  25 #include "wx/math.h"
  26
  27 #include "wx/gtk/private.h"
  28 #include <gdk/gdkkeysyms.h>
  29
  30 //-----------------------------------------------------------------------------
  31 // idle system
  32 //-----------------------------------------------------------------------------
  33
  34 extern void wxapp_install_idle_handler();
  35 extern bool g_isIdle;
  36
  37 //-----------------------------------------------------------------------------
  38 // data
  39 //-----------------------------------------------------------------------------
  40
  41 extern wxCursor   g_globalCursor;
  42 extern wxWindowGTK *g_delayedFocus;
  43
  44 // ----------------------------------------------------------------------------
  45 // helpers
  46 // ----------------------------------------------------------------------------
  47
  48 #ifdef __WXGTK20__
  49 extern "C" {
  50 static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
  51                              GtkTextTag *tag,
  52                              GtkTextIter *start,
  53                              GtkTextIter *end,
  54                              char *prefix)
  55 {
  56     gchar *name;
  57     g_object_get (tag, "name", &name, NULL);
  58
  59     if (!name || strncmp(name, prefix, strlen(prefix)))
  60         // anonymous tag or not starting with prefix - don't remove
  61         g_signal_stop_emission_by_name(buffer, "remove_tag");
  62
  63     g_free(name);
  64 }
  65 }
  66
  67 extern "C" {
  68 static void wxGtkTextApplyTagsFromAttr(GtkTextBuffer *text_buffer,
  69                                        const wxTextAttr& attr,
  70                                        GtkTextIter *start,
  71                                        GtkTextIter *end)
  72 {
  73     static gchar buf[1024];
  74     GtkTextTag *tag;
  75
  76     gulong remove_handler_id = g_signal_connect( text_buffer, "remove_tag",
  77             G_CALLBACK(wxGtkOnRemoveTag), gpointer("WX"));
  78     gtk_text_buffer_remove_all_tags(text_buffer, start, end);
  79     g_signal_handler_disconnect( text_buffer, remove_handler_id );
  80
  81     if (attr.HasFont())
  82     {
  83         char *font_string;
  84         PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
  85         font_string = pango_font_description_to_string(font_description);
  86         g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string);
  87         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
  88                                          buf );
  89         if (!tag)
  90             tag = gtk_text_buffer_create_tag( text_buffer, buf,
  91                                               "font-desc", font_description,
  92                                               NULL );
  93         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
  94         g_free (font_string);
  95     }
  96
  97     if (attr.HasTextColour())
  98     {
  99         GdkColor *colFg = attr.GetTextColour().GetColor();
 100         g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
 101                    colFg->red, colFg->green, colFg->blue);
 102         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 103                                          buf );
 104         if (!tag)
 105             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 106                                               "foreground-gdk", colFg, NULL );
 107         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 108     }
 109
 110     if (attr.HasBackgroundColour())
 111     {
 112         GdkColor *colBg = attr.GetBackgroundColour().GetColor();
 113         g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
 114                    colBg->red, colBg->green, colBg->blue);
 115         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 116                                          buf );
 117         if (!tag)
 118             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 119                                               "background-gdk", colBg, NULL );
 120         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 121     }
 122
 123     if (attr.HasAlignment())
 124     {
 125         GtkTextIter para_start, para_end = *end;
 126         gtk_text_buffer_get_iter_at_line( text_buffer,
 127                                           &para_start,
 128                                           gtk_text_iter_get_line(start) );
 129         gtk_text_iter_forward_line(&para_end);
 130
 131         remove_handler_id = g_signal_connect( text_buffer, "remove_tag",
 132                                               G_CALLBACK(wxGtkOnRemoveTag),
 133                                               gpointer("WXALIGNMENT"));
 134         gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
 135         g_signal_handler_disconnect( text_buffer, remove_handler_id );
 136
 137         GtkJustification align;
 138         switch (attr.GetAlignment())
 139         {
 140             default:
 141                 align = GTK_JUSTIFY_LEFT;
 142                 break;
 143             case wxTEXT_ALIGNMENT_RIGHT:
 144                 align = GTK_JUSTIFY_RIGHT;
 145                 break;
 146             case wxTEXT_ALIGNMENT_CENTER:
 147                 align = GTK_JUSTIFY_CENTER;
 148                 break;
 149             // gtk+ doesn't support justify as of gtk+-2.7.4
 150         }
 151
 152         g_snprintf(buf, sizeof(buf), "WXALIGNMENT %d", align);
 153         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 154                                          buf );
 155         if (!tag)
 156             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 157                                               "justification", align, NULL );
 158         gtk_text_buffer_apply_tag( text_buffer, tag, &para_start, &para_end );
 159     }
 160 }
 161 }
 162
 163 extern "C" {
 164 static void wxGtkTextInsert(GtkWidget *text,
 165                             GtkTextBuffer *text_buffer,
 166                             const wxTextAttr& attr,
 167                             const wxCharBuffer& buffer)
 168
 169 {
 170     gint start_offset;
 171     GtkTextIter iter, start;
 172
 173     gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
 174                                      gtk_text_buffer_get_insert (text_buffer) );
 175     start_offset = gtk_text_iter_get_offset (&iter);
 176     gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
 177
 178     gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
 179
 180     wxGtkTextApplyTagsFromAttr(text_buffer, attr, &start, &iter);
 181 }
 182 }
 183 #else
 184 extern "C" {
 185 static void wxGtkTextInsert(GtkWidget *text,
 186                             const wxTextAttr& attr,
 187                             const char *txt,
 188                             size_t len)
 189 {
 190     GdkFont *font = attr.HasFont() ? attr.GetFont().GetInternalFont()
 191                                    : NULL;
 192
 193     GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
 194                                            : NULL;
 195
 196     GdkColor *colBg = attr.HasBackgroundColour()
 197                         ? attr.GetBackgroundColour().GetColor()
 198                         : NULL;
 199
 200     gtk_text_insert( GTK_TEXT(text), font, colFg, colBg, txt, len );
 201 }
 202 }
 203 #endif // GTK 1.x
 204
 205 // ----------------------------------------------------------------------------
 206 // "insert_text" for GtkEntry
 207 // ----------------------------------------------------------------------------
 208
 209 extern "C" {
 210 static void
 211 gtk_insert_text_callback(GtkEditable *editable,
 212                          const gchar *new_text,
 213                          gint new_text_length,
 214                          gint *position,
 215                          wxTextCtrl *win)
 216 {
 217     if (g_isIdle)
 218         wxapp_install_idle_handler();
 219
 220     // we should only be called if we have a max len limit at all
 221     GtkEntry *entry = GTK_ENTRY (editable);
 222
 223     wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
 224
 225     // check that we don't overflow the max length limit
 226     //
 227     // FIXME: this doesn't work when we paste a string which is going to be
 228     //        truncated
 229     if ( entry->text_length == entry->text_max_length )
 230     {
 231         // we don't need to run the base class version at all
 232         gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text");
 233
 234         // remember that the next changed signal is to be ignored to avoid
 235         // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
 236         win->IgnoreNextTextUpdate();
 237
 238         // and generate the correct one ourselves
 239         wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
 240         event.SetEventObject(win);
 241         event.SetString(win->GetValue());
 242         win->GetEventHandler()->ProcessEvent( event );
 243     }
 244 }
 245 }
 246
 247 #ifdef __WXGTK20__
 248 // Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
 249
 250 extern "C" {
 251 static void
 252 au_apply_tag_callback(GtkTextBuffer *buffer,
 253                       GtkTextTag *tag,
 254                       GtkTextIter *start,
 255                       GtkTextIter *end,
 256                       gpointer textctrl)
 257 {
 258     if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
 259         g_signal_stop_emission_by_name(buffer, "apply_tag");
 260 }
 261 }
 262
 263 //-----------------------------------------------------------------------------
 264 //  GtkTextCharPredicates for gtk_text_iter_*_find_char
 265 //-----------------------------------------------------------------------------
 266
 267 extern "C" {
 268 static gboolean
 269 pred_whitespace (gunichar ch, gpointer user_data)
 270 {
 271     return g_unichar_isspace(ch);
 272 }
 273 }
 274
 275 extern "C" {
 276 static gboolean
 277 pred_non_whitespace (gunichar ch, gpointer user_data)
 278 {
 279     return !g_unichar_isspace(ch);
 280 }
 281 }
 282
 283 extern "C" {
 284 static gboolean
 285 pred_nonpunct (gunichar ch, gpointer user_data)
 286 {
 287     return !g_unichar_ispunct(ch);
 288 }
 289 }
 290
 291 extern "C" {
 292 static gboolean
 293 pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
 294 {
 295     return !g_unichar_ispunct(ch) || ch == '/';
 296 }
 297 }
 298
 299 //-----------------------------------------------------------------------------
 300 //  Check for links between s and e and correct tags as necessary
 301 //-----------------------------------------------------------------------------
 302
 303 // This function should be made match better while being efficient at one point.
 304 // Most probably with a row of regular expressions.
 305 extern "C" {
 306 static void
 307 au_check_word( GtkTextIter *s, GtkTextIter *e )
 308 {
 309     static const char *URIPrefixes[] =
 310     {
 311         "http://",
 312         "ftp://",
 313         "www.",
 314         "ftp.",
 315         "mailto://",
 316         "https://",
 317         "file://",
 318         "nntp://",
 319         "news://",
 320         "telnet://",
 321         "mms://",
 322         "gopher://",
 323         "prospero://",
 324         "wais://",
 325     };
 326
 327     GtkTextIter start = *s, end = *e;
 328     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 329
 330     // Get our special link tag
 331     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 332
 333     // Get rid of punctuation from beginning and end.
 334     // Might want to move this to au_check_range if an improved link checking doesn't
 335     // use some intelligent punctuation checking itself (beware of undesired iter modifications).
 336     if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
 337         gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
 338
 339     gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
 340     gtk_text_iter_forward_char(&end);
 341
 342     gchar* text = gtk_text_iter_get_text( &start, &end );
 343     size_t len = strlen(text), prefix_len;
 344     size_t n;
 345
 346     for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
 347     {
 348         prefix_len = strlen(URIPrefixes[n]);
 349         if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
 350             break;
 351     }
 352
 353     if(n < WXSIZEOF(URIPrefixes))
 354     {
 355         gulong signal_id = g_signal_handler_find(buffer,
 356                                                  (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
 357                                                  0, 0, NULL,
 358                                                  (gpointer)au_apply_tag_callback, NULL);
 359
 360         g_signal_handler_block(buffer, signal_id);
 361         gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
 362         g_signal_handler_unblock(buffer, signal_id);
 363     }
 364 }
 365 }
 366
 367 extern "C" {
 368 static void
 369 au_check_range(GtkTextIter *s,
 370                GtkTextIter *range_end)
 371 {
 372     GtkTextIter range_start = *s;
 373     GtkTextIter word_end;
 374     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 375     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 376
 377     gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
 378
 379     if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
 380         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 381
 382     while(!gtk_text_iter_equal(&range_start, range_end))
 383     {
 384         word_end = range_start;
 385         gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
 386
 387         // Now we should have a word delimited by range_start and word_end, correct link tags
 388         au_check_word(&range_start, &word_end);
 389
 390         range_start = word_end;
 391         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 392     }
 393 }
 394 }
 395
 396 //-----------------------------------------------------------------------------
 397 //  "insert-text" for GtkTextBuffer
 398 //-----------------------------------------------------------------------------
 399
 400 extern "C" {
 401 static void
 402 au_insert_text_callback(GtkTextBuffer *buffer,
 403                         GtkTextIter *end,
 404                         gchar *text,
 405                         gint len,
 406                         wxTextCtrl *win)
 407 {
 408     if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 409         return;
 410
 411     GtkTextIter start = *end;
 412     gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
 413
 414     GtkTextIter line_start = start;
 415     GtkTextIter line_end = *end;
 416     GtkTextIter words_start = start;
 417     GtkTextIter words_end = *end;
 418
 419     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
 420     gtk_text_iter_forward_to_line_end(&line_end);
 421     gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
 422     gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
 423
 424     au_check_range(&words_start, &words_end);
 425 }
 426 }
 427
 428 //-----------------------------------------------------------------------------
 429 //  "delete-range" for GtkTextBuffer
 430 //-----------------------------------------------------------------------------
 431
 432 extern "C" {
 433 static void
 434 au_delete_range_callback(GtkTextBuffer *buffer,
 435                          GtkTextIter *start,
 436                          GtkTextIter *end,
 437                          wxTextCtrl *win)
 438 {
 439     if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 440         return;
 441
 442     GtkTextIter line_start = *start, line_end = *end;
 443
 444     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
 445     gtk_text_iter_forward_to_line_end(&line_end);
 446     gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
 447     gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
 448
 449     au_check_range(start, end);
 450 }
 451 }
 452
 453
 454 #endif
 455
 456 //-----------------------------------------------------------------------------
 457 //  "changed"
 458 //-----------------------------------------------------------------------------
 459
 460 extern "C" {
 461 static void
 462 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
 463 {
 464     if ( win->IgnoreTextUpdate() )
 465         return;
 466
 467     if (!win->m_hasVMT) return;
 468
 469     if (g_isIdle)
 470         wxapp_install_idle_handler();
 471
 472     win->SetModified();
 473 #ifndef __WXGTK20__
 474     win->UpdateFontIfNeeded();
 475 #endif // !__WXGTK20__
 476
 477     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
 478     event.SetEventObject( win );
 479     win->GetEventHandler()->ProcessEvent( event );
 480 }
 481 }
 482
 483 //-----------------------------------------------------------------------------
 484 // "expose_event" from scrolled window and textview
 485 //-----------------------------------------------------------------------------
 486
 487 #ifdef __WXGTK20__
 488 extern "C" {
 489 static gboolean
 490 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
 491 {
 492     return TRUE;
 493 }
 494 }
 495 #endif
 496
 497 //-----------------------------------------------------------------------------
 498 // "changed" from vertical scrollbar
 499 //-----------------------------------------------------------------------------
 500
 501 #ifndef __WXGTK20__
 502 extern "C" {
 503 static void
 504 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
 505 {
 506     if (!win->m_hasVMT) return;
 507
 508     if (g_isIdle)
 509         wxapp_install_idle_handler();
 510
 511     win->CalculateScrollbar();
 512 }
 513 }
 514 #endif
 515
 516 // ----------------------------------------------------------------------------
 517 // redraw callback for multiline text
 518 // ----------------------------------------------------------------------------
 519
 520 #ifndef __WXGTK20__
 521
 522 // redrawing a GtkText from inside a wxYield() call results in crashes (the
 523 // text sample shows it in its "Add lines" command which shows wxProgressDialog
 524 // which implicitly calls wxYield()) so we override GtkText::draw() and simply
 525 // don't do anything if we're inside wxYield()
 526
 527 extern bool wxIsInsideYield;
 528
 529 extern "C" {
 530     typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
 531 }
 532
 533 static GtkDrawCallback gs_gtk_text_draw = NULL;
 534
 535 extern "C" {
 536 static void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
 537 {
 538     if ( !wxIsInsideYield )
 539     {
 540         wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
 541                      _T("infinite recursion in wxgtk_text_draw aborted") );
 542
 543         gs_gtk_text_draw(widget, rect);
 544     }
 545 }
 546 }
 547
 548 #endif // __WXGTK20__
 549
 550 //-----------------------------------------------------------------------------
 551 //  wxTextCtrl
 552 //-----------------------------------------------------------------------------
 553
 554 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
 555
 556 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 557     EVT_CHAR(wxTextCtrl::OnChar)
 558
 559     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 560     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 561     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 562     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 563     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 564
 565     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 566     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 567     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 568     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 569     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 570
 571 #ifdef __WXGTK20__
 572     // wxTE_AUTO_URL wxTextUrl support. Currently only creates
 573     // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
 574     EVT_MOTION      (wxTextCtrl::OnUrlMouseEvent)
 575     EVT_LEFT_DOWN   (wxTextCtrl::OnUrlMouseEvent)
 576     EVT_LEFT_UP     (wxTextCtrl::OnUrlMouseEvent)
 577     EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
 578     EVT_RIGHT_DOWN  (wxTextCtrl::OnUrlMouseEvent)
 579     EVT_RIGHT_UP    (wxTextCtrl::OnUrlMouseEvent)
 580     EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
 581 #endif
 582 END_EVENT_TABLE()
 583
 584 void wxTextCtrl::Init()
 585 {
 586     m_ignoreNextUpdate =
 587     m_modified = false;
 588     SetUpdateFont(false);
 589     m_text =
 590     m_vScrollbar = (GtkWidget *)NULL;
 591 #ifdef __WXGTK20__
 592     m_frozenness = 0;
 593     m_gdkHandCursor = NULL;
 594     m_gdkXTermCursor = NULL;
 595 #endif
 596 }
 597
 598 wxTextCtrl::~wxTextCtrl()
 599 {
 600 #ifdef __WXGTK20__
 601     if(m_gdkHandCursor)
 602         gdk_cursor_unref(m_gdkHandCursor);
 603     if(m_gdkXTermCursor)
 604         gdk_cursor_unref(m_gdkXTermCursor);
 605 #endif
 606 }
 607
 608 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 609                         wxWindowID id,
 610                         const wxString &value,
 611                         const wxPoint &pos,
 612                         const wxSize &size,
 613                         long style,
 614                         const wxValidator& validator,
 615                         const wxString &name )
 616 {
 617     Init();
 618
 619     Create( parent, id, value, pos, size, style, validator, name );
 620 }
 621
 622 bool wxTextCtrl::Create( wxWindow *parent,
 623                          wxWindowID id,
 624                          const wxString &value,
 625                          const wxPoint &pos,
 626                          const wxSize &size,
 627                          long style,
 628                          const wxValidator& validator,
 629                          const wxString &name )
 630 {
 631     m_needParent = true;
 632     m_acceptsFocus = true;
 633
 634     if (!PreCreation( parent, pos, size ) ||
 635         !CreateBase( parent, id, pos, size, style, validator, name ))
 636     {
 637         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 638         return false;
 639     }
 640
 641
 642     m_vScrollbarVisible = false;
 643
 644     bool multi_line = (style & wxTE_MULTILINE) != 0;
 645
 646     if (multi_line)
 647     {
 648 #ifdef __WXGTK20__
 649         // Create view
 650         m_text = gtk_text_view_new();
 651
 652         m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 653
 654         // create scrolled window
 655         m_widget = gtk_scrolled_window_new( NULL, NULL );
 656         gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
 657                                         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 658
 659         // Insert view into scrolled window
 660         gtk_container_add( GTK_CONTAINER(m_widget), m_text );
 661
 662         // translate wx wrapping style to GTK+
 663         GtkWrapMode wrap;
 664         if ( HasFlag( wxTE_DONTWRAP ) )
 665             wrap = GTK_WRAP_NONE;
 666         else if ( HasFlag( wxTE_CHARWRAP ) )
 667             wrap = GTK_WRAP_CHAR;
 668         else if ( HasFlag( wxTE_WORDWRAP ) )
 669             wrap = GTK_WRAP_WORD;
 670         else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
 671         {
 672             // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
 673 #ifdef __WXGTK24__
 674             if ( !gtk_check_version(2,4,0) )
 675             {
 676                 wrap = GTK_WRAP_WORD_CHAR;
 677             }
 678             else
 679 #endif
 680             wrap = GTK_WRAP_WORD;
 681         }
 682
 683         gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
 684
 685         if (!HasFlag(wxNO_BORDER))
 686             gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
 687
 688         gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
 689
 690         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 691 #else // GTK+ 1
 692         // create our control ...
 693         m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
 694
 695         // ... and put into the upper left hand corner of the table
 696         bool bHasHScrollbar = false;
 697         m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
 698         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 699         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 700                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 701                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 702                        0, 0);
 703
 704         // always wrap words
 705         gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
 706
 707         // finally, put the vertical scrollbar in the upper right corner
 708         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 709         GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
 710         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 711                      GTK_FILL,
 712                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 713                      0, 0);
 714 #endif // GTK+ 2/1
 715     }
 716     else
 717     {
 718         // a single-line text control: no need for scrollbars
 719         m_widget =
 720         m_text = gtk_entry_new();
 721
 722 #ifdef __WXGTK20__
 723         if (style & wxNO_BORDER)
 724             g_object_set( GTK_ENTRY(m_text), "has-frame", FALSE, NULL );
 725 #endif
 726     }
 727
 728     m_parent->DoAddChild( this );
 729
 730     m_focusWidget = m_text;
 731
 732     PostCreation(size);
 733
 734     if (multi_line)
 735         gtk_widget_show(m_text);
 736
 737 #ifndef __WXGTK20__
 738     if (multi_line)
 739     {
 740         gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
 741           (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
 742
 743         // only initialize gs_gtk_text_draw once, starting from the next the
 744         // klass::draw will already be wxgtk_text_draw
 745         if ( !gs_gtk_text_draw )
 746         {
 747             GtkDrawCallback&
 748                 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
 749
 750             gs_gtk_text_draw = draw;
 751
 752             draw = wxgtk_text_draw;
 753         }
 754     }
 755 #endif // GTK+ 1.x
 756
 757     if (!value.empty())
 758     {
 759 #ifdef __WXGTK20__
 760         SetValue( value );
 761 #else
 762
 763 #if !GTK_CHECK_VERSION(1, 2, 0)
 764         // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
 765         // gtk_editable_insert_text()
 766         gtk_widget_realize(m_text);
 767 #endif // GTK 1.0
 768
 769         gint tmp = 0;
 770 #if wxUSE_UNICODE
 771         wxWX2MBbuf val = value.mbc_str();
 772         gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
 773 #else
 774         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 775 #endif
 776
 777         if (multi_line)
 778         {
 779             // Bring editable's cursor uptodate. Bug in GTK.
 780             SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
 781         }
 782
 783 #endif
 784     }
 785
 786     if (style & wxTE_PASSWORD)
 787     {
 788         if (!multi_line)
 789             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 790     }
 791
 792     if (style & wxTE_READONLY)
 793     {
 794         if (!multi_line)
 795             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 796 #ifdef __WXGTK20__
 797         else
 798             gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
 799 #else
 800     }
 801     else
 802     {
 803         if (multi_line)
 804             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 805 #endif
 806     }
 807
 808 #ifdef __WXGTK20__
 809     if (multi_line)
 810     {
 811         if (style & wxTE_RIGHT)
 812             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
 813         else if (style & wxTE_CENTRE)
 814             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
 815         // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
 816     }
 817     else
 818     {
 819 #ifdef __WXGTK24__
 820         // gtk_entry_set_alignment was introduced in gtk+-2.3.5
 821         if (!gtk_check_version(2,4,0))
 822         {
 823             if (style & wxTE_RIGHT)
 824                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
 825             else if (style & wxTE_CENTRE)
 826                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
 827         }
 828 #endif
 829     }
 830 #endif // __WXGTK20__
 831
 832     // We want to be notified about text changes.
 833 #ifdef __WXGTK20__
 834     if (multi_line)
 835     {
 836         g_signal_connect( G_OBJECT(m_buffer), "changed",
 837             GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 838
 839         // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
 840         if (style & wxTE_AUTO_URL)
 841         {
 842             GtkTextIter start, end;
 843             m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
 844             m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
 845
 846             // We create our wxUrl tag here for slight efficiency gain - we
 847             // don't have to check for the tag existance in callbacks,
 848             // hereby it's guaranteed to exist.
 849             gtk_text_buffer_create_tag(m_buffer, "wxUrl",
 850                                        "foreground", "blue",
 851                                        "underline", PANGO_UNDERLINE_SINGLE,
 852                                        NULL);
 853
 854             // Check for URLs after each text change
 855             g_signal_connect_after( G_OBJECT(m_buffer), "insert_text",
 856                 GTK_SIGNAL_FUNC(au_insert_text_callback), (gpointer)this);
 857             g_signal_connect_after( G_OBJECT(m_buffer), "delete_range",
 858                 GTK_SIGNAL_FUNC(au_delete_range_callback), (gpointer)this);
 859
 860             // Block all wxUrl tag applying unless we do it ourselves, in which case we
 861             // block this callback temporarily. This takes care of gtk+ internal
 862             // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
 863             // which is undesired because only a part of the URL might be copied.
 864             // The insert-text signal emitted inside it will take care of newly formed
 865             // or wholly copied URLs.
 866             g_signal_connect( G_OBJECT(m_buffer), "apply_tag",
 867                 GTK_SIGNAL_FUNC(au_apply_tag_callback), NULL);
 868
 869             // Check for URLs in the initial string passed to Create
 870             gtk_text_buffer_get_start_iter(m_buffer, &start);
 871             gtk_text_buffer_get_end_iter(m_buffer, &end);
 872             au_check_range(&start, &end);
 873         }
 874     }
 875     else
 876 #endif
 877
 878     {
 879         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 880             GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 881     }
 882
 883     m_cursor = wxCursor( wxCURSOR_IBEAM );
 884
 885     wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
 886     SetDefaultStyle( attrDef );
 887
 888     return true;
 889 }
 890
 891
 892 void wxTextCtrl::CalculateScrollbar()
 893 {
 894 #ifndef __WXGTK20__
 895     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 896
 897     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 898
 899     if (adj->upper - adj->page_size < 0.8)
 900     {
 901         if (m_vScrollbarVisible)
 902         {
 903             gtk_widget_hide( m_vScrollbar );
 904             m_vScrollbarVisible = false;
 905         }
 906     }
 907     else
 908     {
 909         if (!m_vScrollbarVisible)
 910         {
 911             gtk_widget_show( m_vScrollbar );
 912             m_vScrollbarVisible = true;
 913         }
 914     }
 915 #endif
 916 }
 917
 918 wxString wxTextCtrl::GetValue() const
 919 {
 920     wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
 921
 922     wxString tmp;
 923     if (m_windowStyle & wxTE_MULTILINE)
 924     {
 925 #ifdef __WXGTK20__
 926         GtkTextIter start;
 927         gtk_text_buffer_get_start_iter( m_buffer, &start );
 928         GtkTextIter end;
 929         gtk_text_buffer_get_end_iter( m_buffer, &end );
 930         gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
 931
 932 #if wxUSE_UNICODE
 933         wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
 934 #else
 935         wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
 936 #endif
 937         if ( buffer )
 938             tmp = buffer;
 939
 940         g_free( text );
 941 #else
 942         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 943         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 944         tmp = text;
 945         g_free( text );
 946 #endif
 947     }
 948     else
 949     {
 950         tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
 951     }
 952
 953     return tmp;
 954 }
 955
 956 void wxTextCtrl::SetValue( const wxString &value )
 957 {
 958     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 959
 960     if (m_windowStyle & wxTE_MULTILINE)
 961     {
 962 #ifdef __WXGTK20__
 963
 964 #if wxUSE_UNICODE
 965         wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
 966 #else
 967         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
 968 #endif
 969         if (gtk_text_buffer_get_char_count(m_buffer) != 0)
 970             IgnoreNextTextUpdate();
 971
 972         if ( !buffer )
 973         {
 974             // what else can we do? at least don't crash...
 975             return;
 976         }
 977
 978         gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
 979
 980 #else
 981         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 982         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 983         len = 0;
 984         gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
 985 #endif
 986     }
 987     else
 988     {
 989         gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
 990     }
 991
 992     // GRG, Jun/2000: Changed this after a lot of discussion in
 993     //   the lists. wxWidgets 2.2 will have a set of flags to
 994     //   customize this behaviour.
 995     SetInsertionPoint(0);
 996
 997     m_modified = false;
 998 }
 999
1000 void wxTextCtrl::WriteText( const wxString &text )
1001 {
1002     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1003
1004     if ( text.empty() )
1005         return;
1006
1007     // gtk_text_changed_callback() will set m_modified to true but m_modified
1008     // shouldn't be changed by the program writing to the text control itself,
1009     // so save the old value and restore when we're done
1010     bool oldModified = m_modified;
1011
1012     if ( m_windowStyle & wxTE_MULTILINE )
1013     {
1014 #ifdef __WXGTK20__
1015
1016 #if wxUSE_UNICODE
1017         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
1018 #else
1019         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
1020 #endif
1021         if ( !buffer )
1022         {
1023             // what else can we do? at least don't crash...
1024             return;
1025         }
1026
1027         // TODO: Call whatever is needed to delete the selection.
1028         wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
1029
1030         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
1031         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
1032         if ( adj->value == adj->upper - adj->page_size )
1033         {
1034             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
1035                     gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
1036         }
1037 #else // GTK 1.x
1038         // After cursor movements, gtk_text_get_point() is wrong by one.
1039         gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
1040
1041         // always use m_defaultStyle, even if it is empty as otherwise
1042         // resetting the style and appending some more text wouldn't work: if
1043         // we don't specify the style explicitly, the old style would be used
1044         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
1045         wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
1046
1047         // we called wxGtkTextInsert with correct font, no need to do anything
1048         // in UpdateFontIfNeeded() any longer
1049         if ( !text.empty() )
1050         {
1051             SetUpdateFont(false);
1052         }
1053
1054         // Bring editable's cursor back uptodate.
1055         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1056 #endif // GTK 1.x/2.0
1057     }
1058     else // single line
1059     {
1060         // First remove the selection if there is one
1061         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
1062
1063         // This moves the cursor pos to behind the inserted text.
1064         gint len = GET_EDITABLE_POS(m_text);
1065
1066 #ifdef __WXGTK20__
1067
1068 #if wxUSE_UNICODE
1069         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
1070 #else
1071         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
1072 #endif
1073         if ( !buffer )
1074         {
1075             // what else can we do? at least don't crash...
1076             return;
1077         }
1078
1079         gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
1080
1081 #else
1082         gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
1083 #endif
1084
1085         // Bring entry's cursor uptodate.
1086         gtk_entry_set_position( GTK_ENTRY(m_text), len );
1087     }
1088
1089     m_modified = oldModified;
1090 }
1091
1092 void wxTextCtrl::AppendText( const wxString &text )
1093 {
1094     SetInsertionPointEnd();
1095     WriteText( text );
1096 }
1097
1098 wxString wxTextCtrl::GetLineText( long lineNo ) const
1099 {
1100     if (m_windowStyle & wxTE_MULTILINE)
1101     {
1102 #ifndef __WXGTK20__
1103         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1104         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1105
1106         if (text)
1107         {
1108             wxString buf;
1109             long i;
1110             int currentLine = 0;
1111             for (i = 0; currentLine != lineNo && text[i]; i++ )
1112                 if (text[i] == '\n')
1113             currentLine++;
1114             // Now get the text
1115             int j;
1116             for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
1117                 buf += text[i];
1118
1119             g_free( text );
1120             return buf;
1121         }
1122         else
1123         {
1124             return wxEmptyString;
1125         }
1126 #else
1127         GtkTextIter line;
1128         gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1129         GtkTextIter end = line;
1130         gtk_text_iter_forward_to_line_end(&end);
1131         gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
1132         wxString result(wxGTK_CONV_BACK(text));
1133         g_free(text);
1134         return result;
1135 #endif
1136     }
1137     else
1138     {
1139         if (lineNo == 0) return GetValue();
1140         return wxEmptyString;
1141     }
1142 }
1143
1144 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1145 {
1146   /* If you implement this, don't forget to update the documentation!
1147    * (file docs/latex/wx/text.tex) */
1148     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1149 }
1150
1151 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1152 {
1153     if ( m_windowStyle & wxTE_MULTILINE )
1154     {
1155 #ifdef __WXGTK20__
1156         GtkTextIter iter;
1157         gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
1158         if (gtk_text_iter_is_end(&iter))
1159             return false;
1160
1161         *y = gtk_text_iter_get_line(&iter);
1162         *x = gtk_text_iter_get_line_offset(&iter);
1163 #else
1164         wxString text = GetValue();
1165
1166         // cast to prevent warning. But pos really should've been unsigned.
1167         if( (unsigned long)pos > text.Len()  )
1168             return false;
1169
1170         *x=0;   // First Col
1171         *y=0;   // First Line
1172
1173         const wxChar* stop = text.c_str() + pos;
1174         for ( const wxChar *p = text.c_str(); p < stop; p++ )
1175         {
1176             if (*p == wxT('\n'))
1177             {
1178                 (*y)++;
1179                 *x=0;
1180             }
1181             else
1182                 (*x)++;
1183         }
1184 #endif
1185     }
1186     else // single line control
1187     {
1188         if ( pos <= GTK_ENTRY(m_text)->text_length )
1189         {
1190             *y = 0;
1191             *x = pos;
1192         }
1193         else
1194         {
1195             // index out of bounds
1196             return false;
1197         }
1198     }
1199
1200     return true;
1201 }
1202
1203 long wxTextCtrl::XYToPosition(long x, long y ) const
1204 {
1205     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
1206
1207 #ifdef __WXGTK20__
1208     GtkTextIter iter;
1209     if (y >= gtk_text_buffer_get_line_count (m_buffer))
1210         return -1;
1211
1212     gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
1213     if (x >= gtk_text_iter_get_chars_in_line (&iter))
1214         return -1;
1215
1216     return gtk_text_iter_get_offset(&iter) + x;
1217 #else
1218     long pos=0;
1219     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
1220
1221     pos += x;
1222     return pos;
1223 #endif
1224 }
1225
1226 int wxTextCtrl::GetLineLength(long lineNo) const
1227 {
1228 #ifdef __WXGTK20__
1229     if (m_windowStyle & wxTE_MULTILINE)
1230     {
1231         int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
1232         if (lineNo > last_line)
1233             return -1;
1234
1235         GtkTextIter iter;
1236         gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
1237         // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
1238         return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
1239     }
1240     else
1241 #endif
1242     {
1243         wxString str = GetLineText (lineNo);
1244         return (int) str.Length();
1245     }
1246 }
1247
1248 int wxTextCtrl::GetNumberOfLines() const
1249 {
1250     if (m_windowStyle & wxTE_MULTILINE)
1251     {
1252 #ifdef __WXGTK20__
1253         return gtk_text_buffer_get_line_count( m_buffer );
1254 #else
1255         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1256         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1257
1258         if (text)
1259         {
1260             int currentLine = 0;
1261             for (int i = 0; i < len; i++ )
1262             {
1263                 if (text[i] == '\n')
1264                     currentLine++;
1265             }
1266             g_free( text );
1267
1268             // currentLine is 0 based, add 1 to get number of lines
1269             return currentLine + 1;
1270         }
1271         else
1272         {
1273             return 0;
1274         }
1275 #endif
1276     }
1277     else
1278     {
1279         return 1;
1280     }
1281 }
1282
1283 void wxTextCtrl::SetInsertionPoint( long pos )
1284 {
1285     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1286
1287     if ( IsMultiLine() )
1288     {
1289 #ifdef __WXGTK20__
1290         GtkTextIter iter;
1291         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1292         gtk_text_buffer_place_cursor( m_buffer, &iter );
1293         gtk_text_view_scroll_mark_onscreen
1294         (
1295             GTK_TEXT_VIEW(m_text),
1296             gtk_text_buffer_get_insert( m_buffer )
1297         );
1298 #else // GTK+ 1.x
1299         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
1300           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1301
1302         /* we fake a set_point by inserting and deleting. as the user
1303            isn't supposed to get to know about this non-sense, we
1304            disconnect so that no events are sent to the user program. */
1305
1306         gint tmp = (gint)pos;
1307         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
1308         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
1309
1310         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
1311           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1312
1313         // bring editable's cursor uptodate. Bug in GTK.
1314         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1315 #endif // GTK+ 2/1
1316     }
1317     else
1318     {
1319         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
1320
1321         // Bring editable's cursor uptodate. Bug in GTK.
1322         SET_EDITABLE_POS(m_text, (guint32)pos);
1323     }
1324 }
1325
1326 void wxTextCtrl::SetInsertionPointEnd()
1327 {
1328     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1329
1330     if (m_windowStyle & wxTE_MULTILINE)
1331     {
1332 #ifdef __WXGTK20__
1333         GtkTextIter end;
1334         gtk_text_buffer_get_end_iter( m_buffer, &end );
1335         gtk_text_buffer_place_cursor( m_buffer, &end );
1336 #else
1337         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
1338 #endif
1339     }
1340     else
1341     {
1342         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
1343     }
1344 }
1345
1346 void wxTextCtrl::SetEditable( bool editable )
1347 {
1348     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1349
1350     if (m_windowStyle & wxTE_MULTILINE)
1351     {
1352 #ifdef __WXGTK20__
1353         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1354 #else
1355         gtk_text_set_editable( GTK_TEXT(m_text), editable );
1356 #endif
1357     }
1358     else
1359     {
1360         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
1361     }
1362 }
1363
1364 bool wxTextCtrl::Enable( bool enable )
1365 {
1366     if (!wxWindowBase::Enable(enable))
1367     {
1368         // nothing to do
1369         return false;
1370     }
1371
1372     if (m_windowStyle & wxTE_MULTILINE)
1373     {
1374 #ifdef __WXGTK20__
1375         SetEditable( enable );
1376 #else
1377         gtk_text_set_editable( GTK_TEXT(m_text), enable );
1378         OnParentEnable(enable);
1379 #endif
1380     }
1381     else
1382     {
1383         gtk_widget_set_sensitive( m_text, enable );
1384     }
1385
1386     return true;
1387 }
1388
1389 // wxGTK-specific: called recursively by Enable,
1390 // to give widgets an oppprtunity to correct their colours after they
1391 // have been changed by Enable
1392 void wxTextCtrl::OnParentEnable( bool enable )
1393 {
1394     // If we have a custom background colour, we use this colour in both
1395     // disabled and enabled mode, or we end up with a different colour under the
1396     // text.
1397     wxColour oldColour = GetBackgroundColour();
1398     if (oldColour.Ok())
1399     {
1400         // Need to set twice or it'll optimize the useful stuff out
1401         if (oldColour == * wxWHITE)
1402             SetBackgroundColour(*wxBLACK);
1403         else
1404             SetBackgroundColour(*wxWHITE);
1405         SetBackgroundColour(oldColour);
1406     }
1407 }
1408
1409 void wxTextCtrl::MarkDirty()
1410 {
1411     m_modified = true;
1412 }
1413
1414 void wxTextCtrl::DiscardEdits()
1415 {
1416     m_modified = false;
1417 }
1418
1419 // ----------------------------------------------------------------------------
1420 // max text length support
1421 // ----------------------------------------------------------------------------
1422
1423 void wxTextCtrl::IgnoreNextTextUpdate()
1424 {
1425     m_ignoreNextUpdate = true;
1426 }
1427
1428 bool wxTextCtrl::IgnoreTextUpdate()
1429 {
1430     if ( m_ignoreNextUpdate )
1431     {
1432         m_ignoreNextUpdate = false;
1433
1434         return true;
1435     }
1436
1437     return false;
1438 }
1439
1440 void wxTextCtrl::SetMaxLength(unsigned long len)
1441 {
1442     if ( !HasFlag(wxTE_MULTILINE) )
1443     {
1444         gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1445
1446         // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1447         // we had tried to enter more text than allowed by max text length and
1448         // the text wasn't really changed
1449         //
1450         // to detect this and generate TEXT_MAXLEN event instead of
1451         // TEXT_CHANGED one in this case we also catch "insert_text" signal
1452         //
1453         // when max len is set to 0 we disconnect our handler as it means that
1454         // we shouldn't check anything any more
1455         if ( len )
1456         {
1457             gtk_signal_connect( GTK_OBJECT(m_text),
1458                                 "insert_text",
1459                                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1460                                 (gpointer)this);
1461         }
1462         else // no checking
1463         {
1464             gtk_signal_disconnect_by_func
1465             (
1466                 GTK_OBJECT(m_text),
1467                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1468                 (gpointer)this
1469             );
1470         }
1471     }
1472 }
1473
1474 void wxTextCtrl::SetSelection( long from, long to )
1475 {
1476     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1477
1478     if (from == -1 && to == -1)
1479     {
1480         from = 0;
1481         to = GetValue().Length();
1482     }
1483
1484 #ifndef __WXGTK20__
1485     if ( (m_windowStyle & wxTE_MULTILINE) &&
1486          !GTK_TEXT(m_text)->line_start_cache )
1487     {
1488         // tell the programmer that it didn't work
1489         wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1490         return;
1491     }
1492 #endif
1493
1494     if (m_windowStyle & wxTE_MULTILINE)
1495     {
1496 #ifdef __WXGTK20__
1497         GtkTextIter fromi, toi;
1498         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1499         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1500
1501         gtk_text_buffer_place_cursor( m_buffer, &toi );
1502         gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1503 #else
1504         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1505 #endif
1506     }
1507     else
1508     {
1509         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1510     }
1511 }
1512
1513 void wxTextCtrl::ShowPosition( long pos )
1514 {
1515     if (m_windowStyle & wxTE_MULTILINE)
1516     {
1517 #ifdef __WXGTK20__
1518         GtkTextIter iter;
1519         gtk_text_buffer_get_start_iter( m_buffer, &iter );
1520         gtk_text_iter_set_offset( &iter, pos );
1521         GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1522         gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1523 #else // GTK 1.x
1524         GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1525         float totalLines =  (float) GetNumberOfLines();
1526         long posX;
1527         long posY;
1528         PositionToXY(pos, &posX, &posY);
1529         float posLine = (float) posY;
1530         float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1531         gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1532 #endif // GTK 1.x/2.x
1533     }
1534 }
1535
1536 #ifdef __WXGTK20__
1537
1538 wxTextCtrlHitTestResult
1539 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1540 {
1541     if ( !IsMultiLine() )
1542     {
1543         // not supported
1544         return wxTE_HT_UNKNOWN;
1545     }
1546
1547     int x, y;
1548     gtk_text_view_window_to_buffer_coords
1549     (
1550         GTK_TEXT_VIEW(m_text),
1551         GTK_TEXT_WINDOW_TEXT,
1552         pt.x, pt.y,
1553         &x, &y
1554     );
1555
1556     GtkTextIter iter;
1557     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1558     if ( pos )
1559         *pos = gtk_text_iter_get_offset(&iter);
1560
1561     return wxTE_HT_ON_TEXT;
1562 }
1563
1564 #endif // __WXGTK20__
1565
1566 long wxTextCtrl::GetInsertionPoint() const
1567 {
1568     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1569
1570 #ifdef __WXGTK20__
1571     if (m_windowStyle & wxTE_MULTILINE)
1572     {
1573         // There is no direct accessor for the cursor, but
1574         // internally, the cursor is the "mark" called
1575         // "insert" in the text view's btree structure.
1576
1577         GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1578         GtkTextIter cursor;
1579         gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1580
1581         return gtk_text_iter_get_offset( &cursor );
1582     }
1583     else
1584 #endif
1585     {
1586         return (long) GET_EDITABLE_POS(m_text);
1587     }
1588 }
1589
1590 wxTextPos wxTextCtrl::GetLastPosition() const
1591 {
1592     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1593
1594     int pos = 0;
1595
1596     if (m_windowStyle & wxTE_MULTILINE)
1597     {
1598 #ifdef __WXGTK20__
1599         GtkTextIter end;
1600         gtk_text_buffer_get_end_iter( m_buffer, &end );
1601
1602         pos = gtk_text_iter_get_offset( &end );
1603 #else
1604         pos = gtk_text_get_length( GTK_TEXT(m_text) );
1605 #endif
1606     }
1607     else
1608     {
1609         pos = GTK_ENTRY(m_text)->text_length;
1610     }
1611
1612     return (long)pos;
1613 }
1614
1615 void wxTextCtrl::Remove( long from, long to )
1616 {
1617     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1618
1619 #ifdef __WXGTK20__
1620     if (m_windowStyle & wxTE_MULTILINE)
1621     {
1622         GtkTextIter fromi, toi;
1623         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1624         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1625
1626         gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1627     }
1628     else // single line
1629 #endif
1630     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1631 }
1632
1633 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1634 {
1635     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1636
1637     Remove( from, to );
1638
1639     if (!value.empty())
1640     {
1641 #ifdef __WXGTK20__
1642         SetInsertionPoint( from );
1643         WriteText( value );
1644 #else // GTK 1.x
1645         gint pos = (gint)from;
1646 #if wxUSE_UNICODE
1647         wxWX2MBbuf buf = value.mbc_str();
1648         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1649 #else
1650         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1651 #endif // wxUSE_UNICODE
1652 #endif // GTK 1.x/2.x
1653     }
1654 }
1655
1656 void wxTextCtrl::Cut()
1657 {
1658     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1659
1660 #ifdef __WXGTK20__
1661     if (m_windowStyle & wxTE_MULTILINE)
1662         g_signal_emit_by_name(m_text, "cut-clipboard");
1663     else
1664 #endif
1665         gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1666 }
1667
1668 void wxTextCtrl::Copy()
1669 {
1670     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1671
1672 #ifdef __WXGTK20__
1673     if (m_windowStyle & wxTE_MULTILINE)
1674         g_signal_emit_by_name(m_text, "copy-clipboard");
1675     else
1676 #endif
1677         gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1678 }
1679
1680 void wxTextCtrl::Paste()
1681 {
1682     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1683
1684 #ifdef __WXGTK20__
1685     if (m_windowStyle & wxTE_MULTILINE)
1686         g_signal_emit_by_name(m_text, "paste-clipboard");
1687     else
1688 #endif
1689         gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1690 }
1691
1692 // Undo/redo
1693 void wxTextCtrl::Undo()
1694 {
1695     // TODO
1696     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1697 }
1698
1699 void wxTextCtrl::Redo()
1700 {
1701     // TODO
1702     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1703 }
1704
1705 bool wxTextCtrl::CanUndo() const
1706 {
1707     // TODO
1708     //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1709     return false;
1710 }
1711
1712 bool wxTextCtrl::CanRedo() const
1713 {
1714     // TODO
1715     //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1716     return false;
1717 }
1718
1719 // If the return values from and to are the same, there is no
1720 // selection.
1721 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1722 {
1723     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1724
1725     gint from = -1;
1726     gint to = -1;
1727     bool haveSelection = false;
1728
1729 #ifdef __WXGTK20__
1730      if (m_windowStyle & wxTE_MULTILINE)
1731      {
1732          GtkTextIter ifrom, ito;
1733          if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1734          {
1735              haveSelection = true;
1736              from = gtk_text_iter_get_offset(&ifrom);
1737              to = gtk_text_iter_get_offset(&ito);
1738          }
1739      }
1740      else  // not multi-line
1741      {
1742          if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1743                                                  &from, &to) )
1744          {
1745              haveSelection = true;
1746          }
1747      }
1748 #else //  not GTK2
1749      if ( (GTK_EDITABLE(m_text)->has_selection) )
1750      {
1751          haveSelection = true;
1752          from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1753          to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1754      }
1755 #endif
1756
1757      if (! haveSelection )
1758           from = to = GetInsertionPoint();
1759
1760      if ( from > to )
1761      {
1762          // exchange them to be compatible with wxMSW
1763          gint tmp = from;
1764          from = to;
1765          to = tmp;
1766      }
1767
1768     if ( fromOut )
1769         *fromOut = from;
1770     if ( toOut )
1771         *toOut = to;
1772 }
1773
1774
1775 bool wxTextCtrl::IsEditable() const
1776 {
1777     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1778
1779 #ifdef __WXGTK20__
1780     if (m_windowStyle & wxTE_MULTILINE)
1781     {
1782         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1783     }
1784     else
1785     {
1786         return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1787     }
1788 #else
1789     return GTK_EDITABLE(m_text)->editable;
1790 #endif
1791 }
1792
1793 bool wxTextCtrl::IsModified() const
1794 {
1795     return m_modified;
1796 }
1797
1798 void wxTextCtrl::Clear()
1799 {
1800     SetValue( wxEmptyString );
1801 }
1802
1803 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1804 {
1805     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1806
1807     if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1808     {
1809         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1810         event.SetEventObject(this);
1811         event.SetString(GetValue());
1812         if (GetEventHandler()->ProcessEvent(event)) return;
1813     }
1814
1815     if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1816     {
1817         // This will invoke the dialog default action, such
1818         // as the clicking the default button.
1819
1820         wxWindow *top_frame = m_parent;
1821         while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1822             top_frame = top_frame->GetParent();
1823
1824         if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1825         {
1826             GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1827
1828             if (window->default_widget)
1829             {
1830                 gtk_widget_activate (window->default_widget);
1831                 return;
1832             }
1833         }
1834     }
1835
1836     key_event.Skip();
1837 }
1838
1839 GtkWidget* wxTextCtrl::GetConnectWidget()
1840 {
1841     return GTK_WIDGET(m_text);
1842 }
1843
1844 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1845 {
1846     if (m_windowStyle & wxTE_MULTILINE)
1847     {
1848 #ifdef __WXGTK20__
1849         return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT );  // pure guesswork
1850 #else
1851         return (window == GTK_TEXT(m_text)->text_area);
1852 #endif
1853     }
1854     else
1855     {
1856         return (window == GTK_ENTRY(m_text)->text_area);
1857     }
1858 }
1859
1860 // the font will change for subsequent text insertiongs
1861 bool wxTextCtrl::SetFont( const wxFont &font )
1862 {
1863     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1864
1865     if ( !wxTextCtrlBase::SetFont(font) )
1866     {
1867         // font didn't change, nothing to do
1868         return false;
1869     }
1870
1871     if ( m_windowStyle & wxTE_MULTILINE )
1872     {
1873         SetUpdateFont(true);
1874
1875         m_defaultStyle.SetFont(font);
1876
1877         ChangeFontGlobally();
1878     }
1879
1880     return true;
1881 }
1882
1883 void wxTextCtrl::ChangeFontGlobally()
1884 {
1885     // this method is very inefficient and hence should be called as rarely as
1886     // possible!
1887     //
1888     // TODO: it can be implemented much more efficiently for GTK2
1889 #ifndef __WXGTK20__
1890     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1891
1892                   _T("shouldn't be called for single line controls") );
1893 #else
1894     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1895                   _T("shouldn't be called for single line controls") );
1896 #endif
1897
1898     wxString value = GetValue();
1899     if ( !value.empty() )
1900     {
1901         SetUpdateFont(false);
1902
1903         Clear();
1904         AppendText(value);
1905     }
1906 }
1907
1908 #ifndef __WXGTK20__
1909
1910 void wxTextCtrl::UpdateFontIfNeeded()
1911 {
1912     if ( m_updateFont )
1913         ChangeFontGlobally();
1914 }
1915
1916 #endif // GTK+ 1.x
1917
1918 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1919 {
1920     if ( !wxControl::SetForegroundColour(colour) )
1921         return false;
1922
1923     // update default fg colour too
1924     m_defaultStyle.SetTextColour(colour);
1925
1926     return true;
1927 }
1928
1929 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1930 {
1931     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1932
1933     if ( !wxControl::SetBackgroundColour( colour ) )
1934         return false;
1935
1936 #ifndef __WXGTK20__
1937     if (!m_widget->window)
1938         return false;
1939 #endif
1940
1941     if (!m_backgroundColour.Ok())
1942         return false;
1943
1944     if (m_windowStyle & wxTE_MULTILINE)
1945     {
1946 #ifndef __WXGTK20__
1947         GdkWindow *window = GTK_TEXT(m_text)->text_area;
1948         if (!window)
1949             return false;
1950         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1951         gdk_window_set_background( window, m_backgroundColour.GetColor() );
1952         gdk_window_clear( window );
1953 #endif
1954     }
1955
1956     // change active background color too
1957     m_defaultStyle.SetBackgroundColour( colour );
1958
1959     return true;
1960 }
1961
1962 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1963 {
1964     if ( m_windowStyle & wxTE_MULTILINE )
1965     {
1966         if ( style.IsDefault() )
1967         {
1968             // nothing to do
1969             return true;
1970         }
1971
1972 #ifdef __WXGTK20__
1973         gint l = gtk_text_buffer_get_char_count( m_buffer );
1974
1975         wxCHECK_MSG( start >= 0 && end <= l, false,
1976                      _T("invalid range in wxTextCtrl::SetStyle") );
1977
1978         GtkTextIter starti, endi;
1979         gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1980         gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1981
1982         // use the attributes from style which are set in it and fall back
1983         // first to the default style and then to the text control default
1984         // colours for the others
1985         wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1986
1987         wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1988 #else
1989         // VERY dirty way to do that - removes the required text and re-adds it
1990         // with styling (FIXME)
1991
1992         gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1993
1994         wxCHECK_MSG( start >= 0 && end <= l, false,
1995                      _T("invalid range in wxTextCtrl::SetStyle") );
1996
1997         gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1998         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1999         wxString tmp(text,*wxConvCurrent);
2000         g_free( text );
2001
2002         gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
2003         gtk_editable_set_position( GTK_EDITABLE(m_text), start );
2004
2005     #if wxUSE_UNICODE
2006         wxWX2MBbuf buf = tmp.mbc_str();
2007         const char *txt = buf;
2008         size_t txtlen = strlen(buf);
2009     #else
2010         const char *txt = tmp;
2011         size_t txtlen = tmp.length();
2012     #endif
2013
2014         // use the attributes from style which are set in it and fall back
2015         // first to the default style and then to the text control default
2016         // colours for the others
2017         wxGtkTextInsert(m_text,
2018                         wxTextAttr::Combine(style, m_defaultStyle, this),
2019                         txt,
2020                         txtlen);
2021
2022         /* does not seem to help under GTK+ 1.2 !!!
2023         gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
2024         SetInsertionPoint( old_pos );
2025 #endif
2026
2027         return true;
2028     }
2029
2030     // else single line
2031     // cannot do this for GTK+'s Entry widget
2032     return false;
2033 }
2034
2035 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
2036 {
2037     gtk_widget_modify_style(m_text, style);
2038 }
2039
2040 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
2041 {
2042     Cut();
2043 }
2044
2045 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
2046 {
2047     Copy();
2048 }
2049
2050 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
2051 {
2052     Paste();
2053 }
2054
2055 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
2056 {
2057     Undo();
2058 }
2059
2060 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
2061 {
2062     Redo();
2063 }
2064
2065 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
2066 {
2067     event.Enable( CanCut() );
2068 }
2069
2070 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
2071 {
2072     event.Enable( CanCopy() );
2073 }
2074
2075 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
2076 {
2077     event.Enable( CanPaste() );
2078 }
2079
2080 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
2081 {
2082     event.Enable( CanUndo() );
2083 }
2084
2085 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
2086 {
2087     event.Enable( CanRedo() );
2088 }
2089
2090 void wxTextCtrl::OnInternalIdle()
2091 {
2092     wxCursor cursor = m_cursor;
2093     if (g_globalCursor.Ok()) cursor = g_globalCursor;
2094
2095     if (cursor.Ok())
2096     {
2097 #ifndef __WXGTK20__
2098         GdkWindow *window = (GdkWindow*) NULL;
2099         if (HasFlag(wxTE_MULTILINE))
2100             window = GTK_TEXT(m_text)->text_area;
2101         else
2102             window = GTK_ENTRY(m_text)->text_area;
2103
2104         if (window)
2105             gdk_window_set_cursor( window, cursor.GetCursor() );
2106
2107         if (!g_globalCursor.Ok())
2108             cursor = *wxSTANDARD_CURSOR;
2109
2110         window = m_widget->window;
2111         if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2112             gdk_window_set_cursor( window, cursor.GetCursor() );
2113 #endif
2114     }
2115
2116     if (g_delayedFocus == this)
2117     {
2118         if (GTK_WIDGET_REALIZED(m_widget))
2119         {
2120             gtk_widget_grab_focus( m_widget );
2121             g_delayedFocus = NULL;
2122         }
2123     }
2124
2125     if (wxUpdateUIEvent::CanUpdate(this))
2126         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2127 }
2128
2129 wxSize wxTextCtrl::DoGetBestSize() const
2130 {
2131     // FIXME should be different for multi-line controls...
2132     wxSize ret( wxControl::DoGetBestSize() );
2133     wxSize best(80, ret.y);
2134     CacheBestSize(best);
2135     return best;
2136 }
2137
2138 // ----------------------------------------------------------------------------
2139 // freeze/thaw
2140 // ----------------------------------------------------------------------------
2141
2142 void wxTextCtrl::Freeze()
2143 {
2144     if ( HasFlag(wxTE_MULTILINE) )
2145     {
2146 #ifdef __WXGTK20__
2147         if ( !m_frozenness++ )
2148         {
2149             // freeze textview updates and remove buffer
2150             g_signal_connect( G_OBJECT(m_text), "expose_event",
2151                 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2152             g_signal_connect( G_OBJECT(m_widget), "expose_event",
2153                 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2154             gtk_widget_set_sensitive(m_widget, false);
2155             g_object_ref(m_buffer);
2156             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
2157         }
2158 #else
2159         gtk_text_freeze(GTK_TEXT(m_text));
2160 #endif
2161     }
2162 }
2163
2164 void wxTextCtrl::Thaw()
2165 {
2166     if ( HasFlag(wxTE_MULTILINE) )
2167     {
2168 #ifdef __WXGTK20__
2169         wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
2170
2171         if ( !--m_frozenness )
2172         {
2173             // Reattach buffer and thaw textview updates
2174             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
2175             g_object_unref(m_buffer);
2176             gtk_widget_set_sensitive(m_widget, true);
2177             g_signal_handlers_disconnect_by_func(m_widget, (gpointer)gtk_text_exposed_callback, this);
2178             g_signal_handlers_disconnect_by_func(m_text, (gpointer)gtk_text_exposed_callback, this);
2179         }
2180 #else
2181         GTK_TEXT(m_text)->vadj->value = 0.0;
2182
2183         gtk_text_thaw(GTK_TEXT(m_text));
2184 #endif
2185     }
2186 }
2187
2188 // ----------------------------------------------------------------------------
2189 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
2190 // ----------------------------------------------------------------------------
2191
2192 #ifdef __WXGTK20__
2193
2194 // FIXME: when dragging on a link the sample gets an "Unknown event".
2195 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
2196 // a buggy sample, or something else
2197 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
2198 {
2199     event.Skip();
2200     if(!(m_windowStyle & wxTE_AUTO_URL))
2201         return;
2202
2203     gint x, y;
2204     GtkTextIter start, end;
2205     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
2206                                                 "wxUrl");
2207
2208     gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
2209                                           event.GetX(), event.GetY(), &x, &y);
2210
2211     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
2212     if (!gtk_text_iter_has_tag(&end, tag))
2213     {
2214         gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2215                               GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
2216         return;
2217     }
2218
2219     gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2220                           GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
2221
2222     start = end;
2223     if(!gtk_text_iter_begins_tag(&start, tag))
2224         gtk_text_iter_backward_to_tag_toggle(&start, tag);
2225     if(!gtk_text_iter_ends_tag(&end, tag))
2226         gtk_text_iter_forward_to_tag_toggle(&end, tag);
2227
2228     // Native context menu is probably not desired on an URL.
2229     // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
2230     if(event.GetEventType() == wxEVT_RIGHT_DOWN)
2231         event.Skip(false);
2232
2233     wxTextUrlEvent url_event(m_windowId, event,
2234                              gtk_text_iter_get_offset(&start),
2235                              gtk_text_iter_get_offset(&end));
2236
2237     InitCommandEvent(url_event);
2238     // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
2239     //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
2240     GetEventHandler()->ProcessEvent(url_event);
2241 }
2242 #endif // gtk2
2243
2244 // ----------------------------------------------------------------------------
2245 // scrolling
2246 // ----------------------------------------------------------------------------
2247
2248 GtkAdjustment *wxTextCtrl::GetVAdj() const
2249 {
2250     if ( !IsMultiLine() )
2251         return NULL;
2252
2253 #ifdef __WXGTK20__
2254     return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
2255 #else
2256     return GTK_TEXT(m_text)->vadj;
2257 #endif
2258 }
2259
2260 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
2261 {
2262     float value = adj->value + diff;
2263
2264     if ( value < 0 )
2265         value = 0;
2266
2267     float upper = adj->upper - adj->page_size;
2268     if ( value > upper )
2269         value = upper;
2270
2271     // did we noticeably change the scroll position?
2272     if ( fabs(adj->value - value) < 0.2 )
2273     {
2274         // well, this is what Robert does in wxScrollBar, so it must be good...
2275         return false;
2276     }
2277
2278     adj->value = value;
2279
2280 #ifdef __WXGTK20__
2281     gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
2282 #else
2283     gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
2284 #endif
2285
2286     return true;
2287 }
2288
2289 bool wxTextCtrl::ScrollLines(int lines)
2290 {
2291     GtkAdjustment *adj = GetVAdj();
2292     if ( !adj )
2293         return false;
2294
2295 #ifdef __WXGTK20__
2296     int diff = (int)ceil(lines*adj->step_increment);
2297 #else
2298     // this is hardcoded to 10 in GTK+ 1.2 (great idea)
2299     int diff = 10*lines;
2300 #endif
2301
2302     return DoScroll(adj, diff);
2303 }
2304
2305 bool wxTextCtrl::ScrollPages(int pages)
2306 {
2307     GtkAdjustment *adj = GetVAdj();
2308     if ( !adj )
2309         return false;
2310
2311     return DoScroll(adj, (int)ceil(pages*adj->page_increment));
2312 }
2313
2314
2315 // static
2316 wxVisualAttributes
2317 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
2318 {
2319     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
2320 }