src/gtk/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/textctrl.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin, 2005 Mart Raudsepp
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #include "wx/textctrl.h"
  14
  15 #ifndef WX_PRECOMP
  16     #include "wx/intl.h"
  17     #include "wx/log.h"
  18     #include "wx/utils.h"
  19     #include "wx/panel.h"
  20     #include "wx/settings.h"
  21     #include "wx/math.h"
  22 #endif
  23
  24 #include "wx/strconv.h"
  25 #include "wx/fontutil.h"        // for wxNativeFontInfo (GetNativeFontInfo())
  26
  27 #include <sys/types.h>
  28 #include <sys/stat.h>
  29 #include <ctype.h>
  30
  31 #include "wx/gtk/private.h"
  32 #include <gdk/gdkkeysyms.h>
  33
  34 // ----------------------------------------------------------------------------
  35 // helpers
  36 // ----------------------------------------------------------------------------
  37
  38 extern "C" {
  39 static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
  40                              GtkTextTag *tag,
  41                              GtkTextIter *start,
  42                              GtkTextIter *end,
  43                              char *prefix)
  44 {
  45     gchar *name;
  46     g_object_get (tag, "name", &name, NULL);
  47
  48     if (!name || strncmp(name, prefix, strlen(prefix)))
  49         // anonymous tag or not starting with prefix - don't remove
  50         g_signal_stop_emission_by_name (buffer, "remove_tag");
  51
  52     g_free(name);
  53 }
  54 }
  55
  56 extern "C" {
  57 static void wxGtkTextApplyTagsFromAttr(GtkTextBuffer *text_buffer,
  58                                        const wxTextAttr& attr,
  59                                        GtkTextIter *start,
  60                                        GtkTextIter *end)
  61 {
  62     static gchar buf[1024];
  63     GtkTextTag *tag;
  64
  65     gulong remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
  66             G_CALLBACK (wxGtkOnRemoveTag), gpointer("WX"));
  67     gtk_text_buffer_remove_all_tags(text_buffer, start, end);
  68     g_signal_handler_disconnect (text_buffer, remove_handler_id);
  69
  70     if (attr.HasFont())
  71     {
  72         char *font_string;
  73         PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
  74         font_string = pango_font_description_to_string(font_description);
  75         g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string);
  76         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
  77                                          buf );
  78         if (!tag)
  79             tag = gtk_text_buffer_create_tag( text_buffer, buf,
  80                                               "font-desc", font_description,
  81                                               NULL );
  82         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
  83         g_free (font_string);
  84
  85         if (attr.GetFont().GetUnderlined())
  86         {
  87             g_snprintf(buf, sizeof(buf), "WXFONTUNDERLINE");
  88             tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
  89                                              buf );
  90             if (!tag)
  91                 tag = gtk_text_buffer_create_tag( text_buffer, buf,
  92                                                   "underline-set", TRUE,
  93                                                   "underline", PANGO_UNDERLINE_SINGLE,
  94                                                   NULL );
  95             gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
  96         }
  97     }
  98
  99     if (attr.HasTextColour())
 100     {
 101         const GdkColor *colFg = attr.GetTextColour().GetColor();
 102         g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
 103                    colFg->red, colFg->green, colFg->blue);
 104         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 105                                          buf );
 106         if (!tag)
 107             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 108                                               "foreground-gdk", colFg, NULL );
 109         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 110     }
 111
 112     if (attr.HasBackgroundColour())
 113     {
 114         const GdkColor *colBg = attr.GetBackgroundColour().GetColor();
 115         g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
 116                    colBg->red, colBg->green, colBg->blue);
 117         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 118                                          buf );
 119         if (!tag)
 120             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 121                                               "background-gdk", colBg, NULL );
 122         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 123     }
 124
 125     if (attr.HasAlignment())
 126     {
 127         GtkTextIter para_start, para_end = *end;
 128         gtk_text_buffer_get_iter_at_line( text_buffer,
 129                                           &para_start,
 130                                           gtk_text_iter_get_line(start) );
 131         gtk_text_iter_forward_line(&para_end);
 132
 133         remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
 134                                               G_CALLBACK(wxGtkOnRemoveTag),
 135                                               gpointer("WXALIGNMENT"));
 136         gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
 137         g_signal_handler_disconnect (text_buffer, remove_handler_id);
 138
 139         GtkJustification align;
 140         switch (attr.GetAlignment())
 141         {
 142             default:
 143                 align = GTK_JUSTIFY_LEFT;
 144                 break;
 145             case wxTEXT_ALIGNMENT_RIGHT:
 146                 align = GTK_JUSTIFY_RIGHT;
 147                 break;
 148             case wxTEXT_ALIGNMENT_CENTER:
 149                 align = GTK_JUSTIFY_CENTER;
 150                 break;
 151             // gtk+ doesn't support justify as of gtk+-2.7.4
 152         }
 153
 154         g_snprintf(buf, sizeof(buf), "WXALIGNMENT %d", align);
 155         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 156                                          buf );
 157         if (!tag)
 158             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 159                                               "justification", align, NULL );
 160         gtk_text_buffer_apply_tag( text_buffer, tag, &para_start, &para_end );
 161     }
 162 }
 163 }
 164
 165 extern "C" {
 166 static void wxGtkTextInsert(GtkWidget *text,
 167                             GtkTextBuffer *text_buffer,
 168                             const wxTextAttr& attr,
 169                             const wxCharBuffer& buffer)
 170
 171 {
 172     gint start_offset;
 173     GtkTextIter iter, start;
 174
 175     gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
 176                                      gtk_text_buffer_get_insert (text_buffer) );
 177     start_offset = gtk_text_iter_get_offset (&iter);
 178     gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
 179
 180     gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
 181
 182     wxGtkTextApplyTagsFromAttr(text_buffer, attr, &start, &iter);
 183 }
 184 }
 185
 186 // ----------------------------------------------------------------------------
 187 // "insert_text" for GtkEntry
 188 // ----------------------------------------------------------------------------
 189
 190 extern "C" {
 191 static void
 192 gtk_insert_text_callback(GtkEditable *editable,
 193                          const gchar *new_text,
 194                          gint new_text_length,
 195                          gint *position,
 196                          wxTextCtrl *win)
 197 {
 198     if (g_isIdle)
 199         wxapp_install_idle_handler();
 200
 201     // we should only be called if we have a max len limit at all
 202     GtkEntry *entry = GTK_ENTRY (editable);
 203
 204     wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
 205
 206     // check that we don't overflow the max length limit
 207     //
 208     // FIXME: this doesn't work when we paste a string which is going to be
 209     //        truncated
 210     if ( entry->text_length == entry->text_max_length )
 211     {
 212         // we don't need to run the base class version at all
 213         g_signal_stop_emission_by_name (editable, "insert_text");
 214
 215         // remember that the next changed signal is to be ignored to avoid
 216         // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
 217         win->IgnoreNextTextUpdate();
 218
 219         // and generate the correct one ourselves
 220         wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
 221         event.SetEventObject(win);
 222         event.SetString(win->GetValue());
 223         win->GetEventHandler()->ProcessEvent( event );
 224     }
 225 }
 226 }
 227
 228 // Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
 229
 230 extern "C" {
 231 static void
 232 au_apply_tag_callback(GtkTextBuffer *buffer,
 233                       GtkTextTag *tag,
 234                       GtkTextIter *start,
 235                       GtkTextIter *end,
 236                       gpointer textctrl)
 237 {
 238     if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
 239         g_signal_stop_emission_by_name (buffer, "apply_tag");
 240 }
 241 }
 242
 243 //-----------------------------------------------------------------------------
 244 //  GtkTextCharPredicates for gtk_text_iter_*_find_char
 245 //-----------------------------------------------------------------------------
 246
 247 extern "C" {
 248 static gboolean
 249 pred_whitespace (gunichar ch, gpointer user_data)
 250 {
 251     return g_unichar_isspace(ch);
 252 }
 253 }
 254
 255 extern "C" {
 256 static gboolean
 257 pred_non_whitespace (gunichar ch, gpointer user_data)
 258 {
 259     return !g_unichar_isspace(ch);
 260 }
 261 }
 262
 263 extern "C" {
 264 static gboolean
 265 pred_nonpunct (gunichar ch, gpointer user_data)
 266 {
 267     return !g_unichar_ispunct(ch);
 268 }
 269 }
 270
 271 extern "C" {
 272 static gboolean
 273 pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
 274 {
 275     return !g_unichar_ispunct(ch) || ch == '/';
 276 }
 277 }
 278
 279 //-----------------------------------------------------------------------------
 280 //  Check for links between s and e and correct tags as necessary
 281 //-----------------------------------------------------------------------------
 282
 283 // This function should be made match better while being efficient at one point.
 284 // Most probably with a row of regular expressions.
 285 extern "C" {
 286 static void
 287 au_check_word( GtkTextIter *s, GtkTextIter *e )
 288 {
 289     static const char *URIPrefixes[] =
 290     {
 291         "http://",
 292         "ftp://",
 293         "www.",
 294         "ftp.",
 295         "mailto://",
 296         "https://",
 297         "file://",
 298         "nntp://",
 299         "news://",
 300         "telnet://",
 301         "mms://",
 302         "gopher://",
 303         "prospero://",
 304         "wais://",
 305     };
 306
 307     GtkTextIter start = *s, end = *e;
 308     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 309
 310     // Get our special link tag
 311     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 312
 313     // Get rid of punctuation from beginning and end.
 314     // Might want to move this to au_check_range if an improved link checking doesn't
 315     // use some intelligent punctuation checking itself (beware of undesired iter modifications).
 316     if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
 317         gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
 318
 319     gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
 320     gtk_text_iter_forward_char(&end);
 321
 322     gchar* text = gtk_text_iter_get_text( &start, &end );
 323     size_t len = strlen(text), prefix_len;
 324     size_t n;
 325
 326     for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
 327     {
 328         prefix_len = strlen(URIPrefixes[n]);
 329         if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
 330             break;
 331     }
 332
 333     if(n < WXSIZEOF(URIPrefixes))
 334     {
 335         gulong signal_id = g_signal_handler_find (buffer,
 336                                                   (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
 337                                                   0, 0, NULL,
 338                                                   (gpointer)au_apply_tag_callback, NULL);
 339
 340         g_signal_handler_block (buffer, signal_id);
 341         gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
 342         g_signal_handler_unblock (buffer, signal_id);
 343     }
 344 }
 345 }
 346
 347 extern "C" {
 348 static void
 349 au_check_range(GtkTextIter *s,
 350                GtkTextIter *range_end)
 351 {
 352     GtkTextIter range_start = *s;
 353     GtkTextIter word_end;
 354     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 355     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 356
 357     gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
 358
 359     if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
 360         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 361
 362     while(!gtk_text_iter_equal(&range_start, range_end))
 363     {
 364         word_end = range_start;
 365         gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
 366
 367         // Now we should have a word delimited by range_start and word_end, correct link tags
 368         au_check_word(&range_start, &word_end);
 369
 370         range_start = word_end;
 371         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 372     }
 373 }
 374 }
 375
 376 //-----------------------------------------------------------------------------
 377 //  "insert-text" for GtkTextBuffer
 378 //-----------------------------------------------------------------------------
 379
 380 extern "C" {
 381 static void
 382 au_insert_text_callback(GtkTextBuffer *buffer,
 383                         GtkTextIter *end,
 384                         gchar *text,
 385                         gint len,
 386                         wxTextCtrl *win)
 387 {
 388     if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 389         return;
 390
 391     GtkTextIter start = *end;
 392     gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
 393
 394     GtkTextIter line_start = start;
 395     GtkTextIter line_end = *end;
 396     GtkTextIter words_start = start;
 397     GtkTextIter words_end = *end;
 398
 399     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
 400     gtk_text_iter_forward_to_line_end(&line_end);
 401     gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
 402     gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
 403
 404     au_check_range(&words_start, &words_end);
 405 }
 406 }
 407
 408 //-----------------------------------------------------------------------------
 409 //  "delete-range" for GtkTextBuffer
 410 //-----------------------------------------------------------------------------
 411
 412 extern "C" {
 413 static void
 414 au_delete_range_callback(GtkTextBuffer *buffer,
 415                          GtkTextIter *start,
 416                          GtkTextIter *end,
 417                          wxTextCtrl *win)
 418 {
 419     if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 420         return;
 421
 422     GtkTextIter line_start = *start, line_end = *end;
 423
 424     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
 425     gtk_text_iter_forward_to_line_end(&line_end);
 426     gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
 427     gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
 428
 429     au_check_range(start, end);
 430 }
 431 }
 432
 433
 434 //-----------------------------------------------------------------------------
 435 //  "changed"
 436 //-----------------------------------------------------------------------------
 437
 438 extern "C" {
 439 static void
 440 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
 441 {
 442     if ( win->IgnoreTextUpdate() )
 443         return;
 444
 445     if (!win->m_hasVMT) return;
 446
 447     if (g_isIdle)
 448         wxapp_install_idle_handler();
 449
 450     if ( win->MarkDirtyOnChange() )
 451         win->MarkDirty();
 452
 453     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
 454     event.SetEventObject( win );
 455     win->GetEventHandler()->ProcessEvent( event );
 456 }
 457 }
 458
 459 //-----------------------------------------------------------------------------
 460 //  clipboard events: "copy-clipboard", "cut-clipboard", "paste-clipboard"
 461 //-----------------------------------------------------------------------------
 462
 463 // common part of the event handlers below
 464 static void
 465 handle_text_clipboard_callback( GtkWidget *widget, wxTextCtrl *win,
 466                                 wxEventType eventType, const gchar * signal_name)
 467 {
 468     wxClipboardTextEvent event( eventType, win->GetId() );
 469     event.SetEventObject( win );
 470     if ( win->GetEventHandler()->ProcessEvent( event ) )
 471     {
 472         // don't let the default processing to take place if we did something
 473         // ourselves in the event handler
 474         g_signal_stop_emission_by_name (widget, signal_name);
 475     }
 476 }
 477
 478 extern "C" {
 479 static void
 480 gtk_copy_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 481 {
 482     handle_text_clipboard_callback(
 483         widget, win, wxEVT_COMMAND_TEXT_COPY, "copy-clipboard" );
 484 }
 485
 486 static void
 487 gtk_cut_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 488 {
 489     handle_text_clipboard_callback(
 490         widget, win, wxEVT_COMMAND_TEXT_CUT, "cut-clipboard" );
 491 }
 492
 493 static void
 494 gtk_paste_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 495 {
 496     handle_text_clipboard_callback(
 497         widget, win, wxEVT_COMMAND_TEXT_PASTE, "paste-clipboard" );
 498 }
 499 }
 500
 501 //-----------------------------------------------------------------------------
 502 // "expose_event" from scrolled window and textview
 503 //-----------------------------------------------------------------------------
 504
 505 extern "C" {
 506 static gboolean
 507 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
 508 {
 509     return TRUE;
 510 }
 511 }
 512
 513
 514 //-----------------------------------------------------------------------------
 515 //  wxTextCtrl
 516 //-----------------------------------------------------------------------------
 517
 518 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxTextCtrlBase)
 519
 520 BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase)
 521     EVT_CHAR(wxTextCtrl::OnChar)
 522
 523     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 524     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 525     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 526     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 527     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 528
 529     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 530     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 531     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 532     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 533     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 534
 535     // wxTE_AUTO_URL wxTextUrl support. Currently only creates
 536     // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
 537     EVT_MOTION      (wxTextCtrl::OnUrlMouseEvent)
 538     EVT_LEFT_DOWN   (wxTextCtrl::OnUrlMouseEvent)
 539     EVT_LEFT_UP     (wxTextCtrl::OnUrlMouseEvent)
 540     EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
 541     EVT_RIGHT_DOWN  (wxTextCtrl::OnUrlMouseEvent)
 542     EVT_RIGHT_UP    (wxTextCtrl::OnUrlMouseEvent)
 543     EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
 544 END_EVENT_TABLE()
 545
 546 void wxTextCtrl::Init()
 547 {
 548     m_dontMarkDirty =
 549     m_ignoreNextUpdate =
 550     m_modified = false;
 551
 552     SetUpdateFont(false);
 553
 554     m_text = NULL;
 555     m_frozenness = 0;
 556     m_gdkHandCursor = NULL;
 557     m_gdkXTermCursor = NULL;
 558 }
 559
 560 wxTextCtrl::~wxTextCtrl()
 561 {
 562     if(m_gdkHandCursor)
 563         gdk_cursor_unref(m_gdkHandCursor);
 564     if(m_gdkXTermCursor)
 565         gdk_cursor_unref(m_gdkXTermCursor);
 566 }
 567
 568 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 569                         wxWindowID id,
 570                         const wxString &value,
 571                         const wxPoint &pos,
 572                         const wxSize &size,
 573                         long style,
 574                         const wxValidator& validator,
 575                         const wxString &name )
 576 {
 577     Init();
 578
 579     Create( parent, id, value, pos, size, style, validator, name );
 580 }
 581
 582 bool wxTextCtrl::Create( wxWindow *parent,
 583                          wxWindowID id,
 584                          const wxString &value,
 585                          const wxPoint &pos,
 586                          const wxSize &size,
 587                          long style,
 588                          const wxValidator& validator,
 589                          const wxString &name )
 590 {
 591     m_needParent = true;
 592     m_acceptsFocus = true;
 593
 594     if (!PreCreation( parent, pos, size ) ||
 595         !CreateBase( parent, id, pos, size, style, validator, name ))
 596     {
 597         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 598         return false;
 599     }
 600
 601     bool multi_line = (style & wxTE_MULTILINE) != 0;
 602
 603     if (multi_line)
 604     {
 605         // Create view
 606         m_text = gtk_text_view_new();
 607
 608         m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 609
 610         // create scrolled window
 611         m_widget = gtk_scrolled_window_new( NULL, NULL );
 612         gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
 613                                         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 614         // for ScrollLines/Pages
 615         m_scrollBar[1] = (GtkRange*)((GtkScrolledWindow*)m_widget)->vscrollbar;
 616
 617         // Insert view into scrolled window
 618         gtk_container_add( GTK_CONTAINER(m_widget), m_text );
 619
 620         // translate wx wrapping style to GTK+
 621         GtkWrapMode wrap;
 622         if ( HasFlag( wxTE_DONTWRAP ) )
 623             wrap = GTK_WRAP_NONE;
 624         else if ( HasFlag( wxTE_CHARWRAP ) )
 625             wrap = GTK_WRAP_CHAR;
 626         else if ( HasFlag( wxTE_WORDWRAP ) )
 627             wrap = GTK_WRAP_WORD;
 628         else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
 629         {
 630             // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
 631 #ifdef __WXGTK24__
 632             if ( !gtk_check_version(2,4,0) )
 633             {
 634                 wrap = GTK_WRAP_WORD_CHAR;
 635             }
 636             else
 637 #endif
 638             wrap = GTK_WRAP_WORD;
 639         }
 640
 641         gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
 642
 643         GtkScrolledWindowSetBorder(m_widget, style);
 644
 645         gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
 646
 647         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 648     }
 649     else
 650     {
 651         // a single-line text control: no need for scrollbars
 652         m_widget =
 653         m_text = gtk_entry_new();
 654
 655         if (style & wxNO_BORDER)
 656             g_object_set (m_text, "has-frame", FALSE, NULL);
 657     }
 658
 659     m_parent->DoAddChild( this );
 660
 661     m_focusWidget = m_text;
 662
 663     PostCreation(size);
 664
 665     if (multi_line)
 666     {
 667         gtk_widget_show(m_text);
 668     }
 669
 670     if (!value.empty())
 671     {
 672         SetValue( value );
 673     }
 674
 675     if (style & wxTE_PASSWORD)
 676     {
 677         if (!multi_line)
 678             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 679     }
 680
 681     if (style & wxTE_READONLY)
 682     {
 683         if (!multi_line)
 684             gtk_editable_set_editable( GTK_EDITABLE(m_text), FALSE );
 685         else
 686             gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
 687     }
 688
 689     if (multi_line)
 690     {
 691         if (style & wxTE_RIGHT)
 692             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
 693         else if (style & wxTE_CENTRE)
 694             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
 695         // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
 696     }
 697     else
 698     {
 699 #ifdef __WXGTK24__
 700         // gtk_entry_set_alignment was introduced in gtk+-2.3.5
 701         if (!gtk_check_version(2,4,0))
 702         {
 703             if (style & wxTE_RIGHT)
 704                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
 705             else if (style & wxTE_CENTRE)
 706                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
 707         }
 708 #endif
 709     }
 710
 711     // We want to be notified about text changes.
 712     if (multi_line)
 713     {
 714         g_signal_connect (m_buffer, "changed",
 715                           G_CALLBACK (gtk_text_changed_callback), this);
 716
 717         // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
 718         if (style & wxTE_AUTO_URL)
 719         {
 720             GtkTextIter start, end;
 721             m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
 722             m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
 723
 724             // We create our wxUrl tag here for slight efficiency gain - we
 725             // don't have to check for the tag existance in callbacks,
 726             // hereby it's guaranteed to exist.
 727             gtk_text_buffer_create_tag(m_buffer, "wxUrl",
 728                                        "foreground", "blue",
 729                                        "underline", PANGO_UNDERLINE_SINGLE,
 730                                        NULL);
 731
 732             // Check for URLs after each text change
 733             g_signal_connect_after (m_buffer, "insert_text",
 734                                     G_CALLBACK (au_insert_text_callback), this);
 735             g_signal_connect_after (m_buffer, "delete_range",
 736                                     G_CALLBACK (au_delete_range_callback), this);
 737
 738             // Block all wxUrl tag applying unless we do it ourselves, in which case we
 739             // block this callback temporarily. This takes care of gtk+ internal
 740             // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
 741             // which is undesired because only a part of the URL might be copied.
 742             // The insert-text signal emitted inside it will take care of newly formed
 743             // or wholly copied URLs.
 744             g_signal_connect (m_buffer, "apply_tag",
 745                               G_CALLBACK (au_apply_tag_callback), NULL);
 746
 747             // Check for URLs in the initial string passed to Create
 748             gtk_text_buffer_get_start_iter(m_buffer, &start);
 749             gtk_text_buffer_get_end_iter(m_buffer, &end);
 750             au_check_range(&start, &end);
 751         }
 752     }
 753     else
 754     {
 755         g_signal_connect (m_text, "changed",
 756                           G_CALLBACK (gtk_text_changed_callback), this);
 757     }
 758
 759     g_signal_connect (m_text, "copy-clipboard",
 760                       G_CALLBACK (gtk_copy_clipboard_callback), this);
 761     g_signal_connect (m_text, "cut-clipboard",
 762                       G_CALLBACK (gtk_cut_clipboard_callback), this);
 763     g_signal_connect (m_text, "paste-clipboard",
 764                       G_CALLBACK (gtk_paste_clipboard_callback), this);
 765
 766     m_cursor = wxCursor( wxCURSOR_IBEAM );
 767
 768     wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
 769     SetDefaultStyle( attrDef );
 770
 771     return true;
 772 }
 773
 774
 775 void wxTextCtrl::CalculateScrollbar()
 776 {
 777 }
 778
 779 wxString wxTextCtrl::GetValue() const
 780 {
 781     wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
 782
 783     wxString tmp;
 784     if ( IsMultiLine() )
 785     {
 786         GtkTextIter start;
 787         gtk_text_buffer_get_start_iter( m_buffer, &start );
 788         GtkTextIter end;
 789         gtk_text_buffer_get_end_iter( m_buffer, &end );
 790         gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
 791
 792         const wxWxCharBuffer buf = wxGTK_CONV_BACK(text);
 793         if ( buf )
 794             tmp = buf;
 795
 796         g_free( text );
 797     }
 798     else
 799     {
 800         const gchar *text = gtk_entry_get_text( GTK_ENTRY(m_text) );
 801         const wxWxCharBuffer buf = wxGTK_CONV_BACK( text );
 802         if ( buf )
 803             tmp = buf;
 804     }
 805
 806     return tmp;
 807 }
 808
 809 wxFontEncoding wxTextCtrl::GetTextEncoding() const
 810 {
 811     // GTK+ uses UTF-8 internally, we need to convert to it but from which
 812     // encoding?
 813
 814     // first check the default text style (we intentionally don't check the
 815     // style for the current position as it doesn't make sense for SetValue())
 816     const wxTextAttr& style = GetDefaultStyle();
 817     wxFontEncoding enc = style.HasFont() ? style.GetFont().GetEncoding()
 818                                          : wxFONTENCODING_SYSTEM;
 819
 820     // fall back to the controls font if no style
 821     if ( enc == wxFONTENCODING_SYSTEM && m_hasFont )
 822         enc = GetFont().GetEncoding();
 823
 824     return enc;
 825 }
 826
 827 void wxTextCtrl::SetValue( const wxString &value )
 828 {
 829     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 830
 831     // the control won't be modified any more as we programmatically replace
 832     // all the existing text, so reset the flag and don't set it again (and do
 833     // it now, before the text event handler is ran so that IsModified() called
 834     // from there returns the expected value)
 835     m_modified = false;
 836     DontMarkDirtyOnNextChange();
 837
 838     if ( IsMultiLine() )
 839     {
 840         const wxCharBuffer buffer(wxGTK_CONV_ENC(value, GetTextEncoding()));
 841         if ( !buffer )
 842         {
 843             // see comment in WriteText() as to why we must warn the user about
 844             // this
 845             wxLogWarning(_("Failed to set text in the text control."));
 846             return;
 847         }
 848
 849         if (gtk_text_buffer_get_char_count(m_buffer) != 0)
 850             IgnoreNextTextUpdate();
 851
 852         gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
 853     }
 854     else // single line
 855     {
 856         // gtk_entry_set_text() emits two "changed" signals because internally
 857         // it calls gtk_editable_delete_text() and gtk_editable_insert_text()
 858         // but we want to have only one event
 859         IgnoreNextTextUpdate();
 860
 861         gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV(value) );
 862     }
 863
 864     // GRG, Jun/2000: Changed this after a lot of discussion in
 865     //   the lists. wxWidgets 2.2 will have a set of flags to
 866     //   customize this behaviour.
 867     SetInsertionPoint(0);
 868 }
 869
 870 void wxTextCtrl::WriteText( const wxString &text )
 871 {
 872     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 873
 874     if ( text.empty() )
 875         return;
 876
 877     // check if we have a specific style for the current position
 878     wxFontEncoding enc = wxFONTENCODING_SYSTEM;
 879     wxTextAttr style;
 880     if ( GetStyle(GetInsertionPoint(), style) && style.HasFont() )
 881     {
 882         enc = style.GetFont().GetEncoding();
 883     }
 884
 885     if ( enc == wxFONTENCODING_SYSTEM )
 886         enc = GetTextEncoding();
 887
 888     const wxCharBuffer buffer(wxGTK_CONV_ENC(text, enc));
 889     if ( !buffer )
 890     {
 891         // we must log an error here as losing the text like this can be a
 892         // serious problem (e.g. imagine the document edited by user being
 893         // empty instead of containing the correct text)
 894         wxLogWarning(_("Failed to insert text in the control."));
 895         return;
 896     }
 897
 898     // we're changing the text programmatically
 899     DontMarkDirtyOnNextChange();
 900
 901     if ( IsMultiLine() )
 902     {
 903         // First remove the selection if there is one
 904         // TODO:  Is there an easier GTK specific way to do this?
 905         long from, to;
 906         GetSelection(&from, &to);
 907         if (from != to)
 908             Remove(from, to);
 909
 910         // Insert the text
 911         wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
 912
 913         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
 914         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
 915         if ( wxIsSameDouble(adj->value, adj->upper - adj->page_size) )
 916         {
 917             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
 918                     gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
 919         }
 920     }
 921     else // single line
 922     {
 923         // First remove the selection if there is one
 924         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
 925
 926         // This moves the cursor pos to behind the inserted text.
 927         gint len = gtk_editable_get_position(GTK_EDITABLE(m_text));
 928
 929         gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
 930
 931         // Bring entry's cursor uptodate.
 932         gtk_editable_set_position( GTK_EDITABLE(m_text), len );
 933     }
 934 }
 935
 936 void wxTextCtrl::AppendText( const wxString &text )
 937 {
 938     SetInsertionPointEnd();
 939     WriteText( text );
 940 }
 941
 942 wxString wxTextCtrl::GetLineText( long lineNo ) const
 943 {
 944     if ( IsMultiLine() )
 945     {
 946         GtkTextIter line;
 947         gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
 948         GtkTextIter end = line;
 949         gtk_text_iter_forward_to_line_end(&end);
 950         gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
 951         wxString result(wxGTK_CONV_BACK(text));
 952         g_free(text);
 953         return result;
 954     }
 955     else
 956     {
 957         if (lineNo == 0) return GetValue();
 958         return wxEmptyString;
 959     }
 960 }
 961
 962 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 963 {
 964   /* If you implement this, don't forget to update the documentation!
 965    * (file docs/latex/wx/text.tex) */
 966     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
 967 }
 968
 969 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 970 {
 971     if ( IsMultiLine() )
 972     {
 973         GtkTextIter iter;
 974
 975         if (pos > GetLastPosition())
 976             return false;
 977
 978         gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
 979
 980         if ( y )
 981             *y = gtk_text_iter_get_line(&iter);
 982         if ( x )
 983             *x = gtk_text_iter_get_line_offset(&iter);
 984     }
 985     else // single line control
 986     {
 987         if ( pos <= GTK_ENTRY(m_text)->text_length )
 988         {
 989             if ( y )
 990                 *y = 0;
 991             if ( x )
 992                 *x = pos;
 993         }
 994         else
 995         {
 996             // index out of bounds
 997             return false;
 998         }
 999     }
1000
1001     return true;
1002 }
1003
1004 long wxTextCtrl::XYToPosition(long x, long y ) const
1005 {
1006     if ( IsSingleLine() )
1007         return 0;
1008
1009     GtkTextIter iter;
1010     if (y >= gtk_text_buffer_get_line_count (m_buffer))
1011         return -1;
1012
1013     gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
1014     if (x >= gtk_text_iter_get_chars_in_line (&iter))
1015         return -1;
1016
1017     return gtk_text_iter_get_offset(&iter) + x;
1018 }
1019
1020 int wxTextCtrl::GetLineLength(long lineNo) const
1021 {
1022     if ( IsMultiLine() )
1023     {
1024         int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
1025         if (lineNo > last_line)
1026             return -1;
1027
1028         GtkTextIter iter;
1029         gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
1030         // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
1031         return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
1032     }
1033     else
1034     {
1035         wxString str = GetLineText (lineNo);
1036         return (int) str.length();
1037     }
1038 }
1039
1040 int wxTextCtrl::GetNumberOfLines() const
1041 {
1042     if ( IsMultiLine() )
1043     {
1044         GtkTextIter iter;
1045         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, 0 );
1046
1047         // move forward by one display line until the end is reached
1048         int lineCount = 1;
1049         while ( gtk_text_view_forward_display_line(GTK_TEXT_VIEW(m_text), &iter) )
1050         {
1051             lineCount++;
1052         }
1053
1054         // If the last character in the text buffer is a newline,
1055         // gtk_text_view_forward_display_line() will return false without that
1056         // line being counted. Must add one manually in that case.
1057         GtkTextIter lastCharIter;
1058         gtk_text_buffer_get_iter_at_offset
1059         (
1060             m_buffer,
1061             &lastCharIter,
1062             gtk_text_buffer_get_char_count(m_buffer) - 1
1063         );
1064         gchar lastChar = gtk_text_iter_get_char( &lastCharIter );
1065         if ( lastChar == wxT('\n') )
1066             lineCount++;
1067
1068         return lineCount;
1069     }
1070     else // single line
1071     {
1072         return 1;
1073     }
1074 }
1075
1076 void wxTextCtrl::SetInsertionPoint( long pos )
1077 {
1078     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1079
1080     if ( IsMultiLine() )
1081     {
1082         GtkTextIter iter;
1083         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1084         gtk_text_buffer_place_cursor( m_buffer, &iter );
1085         gtk_text_view_scroll_mark_onscreen
1086         (
1087             GTK_TEXT_VIEW(m_text),
1088             gtk_text_buffer_get_insert( m_buffer )
1089         );
1090     }
1091     else
1092     {
1093         // FIXME: Is the editable's cursor really uptodate without double set_position in GTK2?
1094         gtk_editable_set_position(GTK_EDITABLE(m_text), int(pos));
1095     }
1096 }
1097
1098 void wxTextCtrl::SetInsertionPointEnd()
1099 {
1100     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1101
1102     if ( IsMultiLine() )
1103     {
1104         GtkTextIter end;
1105         gtk_text_buffer_get_end_iter( m_buffer, &end );
1106         gtk_text_buffer_place_cursor( m_buffer, &end );
1107     }
1108     else
1109     {
1110         gtk_editable_set_position( GTK_EDITABLE(m_text), -1 );
1111     }
1112 }
1113
1114 void wxTextCtrl::SetEditable( bool editable )
1115 {
1116     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1117
1118     if ( IsMultiLine() )
1119     {
1120         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1121     }
1122     else
1123     {
1124         gtk_editable_set_editable( GTK_EDITABLE(m_text), editable );
1125     }
1126 }
1127
1128 bool wxTextCtrl::Enable( bool enable )
1129 {
1130     if (!wxWindowBase::Enable(enable))
1131     {
1132         // nothing to do
1133         return false;
1134     }
1135
1136     if ( IsMultiLine() )
1137     {
1138         SetEditable( enable );
1139     }
1140     else
1141     {
1142         gtk_widget_set_sensitive( m_text, enable );
1143     }
1144
1145     return true;
1146 }
1147
1148 // wxGTK-specific: called recursively by Enable,
1149 // to give widgets an oppprtunity to correct their colours after they
1150 // have been changed by Enable
1151 void wxTextCtrl::OnParentEnable( bool enable )
1152 {
1153     // If we have a custom background colour, we use this colour in both
1154     // disabled and enabled mode, or we end up with a different colour under the
1155     // text.
1156     wxColour oldColour = GetBackgroundColour();
1157     if (oldColour.Ok())
1158     {
1159         // Need to set twice or it'll optimize the useful stuff out
1160         if (oldColour == * wxWHITE)
1161             SetBackgroundColour(*wxBLACK);
1162         else
1163             SetBackgroundColour(*wxWHITE);
1164         SetBackgroundColour(oldColour);
1165     }
1166 }
1167
1168 void wxTextCtrl::MarkDirty()
1169 {
1170     m_modified = true;
1171 }
1172
1173 void wxTextCtrl::DiscardEdits()
1174 {
1175     m_modified = false;
1176 }
1177
1178 // ----------------------------------------------------------------------------
1179 // max text length support
1180 // ----------------------------------------------------------------------------
1181
1182 bool wxTextCtrl::IgnoreTextUpdate()
1183 {
1184     if ( m_ignoreNextUpdate )
1185     {
1186         m_ignoreNextUpdate = false;
1187
1188         return true;
1189     }
1190
1191     return false;
1192 }
1193
1194 bool wxTextCtrl::MarkDirtyOnChange()
1195 {
1196     if ( m_dontMarkDirty )
1197     {
1198         m_dontMarkDirty = false;
1199
1200         return false;
1201     }
1202
1203     return true;
1204 }
1205
1206 void wxTextCtrl::SetMaxLength(unsigned long len)
1207 {
1208     if ( !HasFlag(wxTE_MULTILINE) )
1209     {
1210         gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1211
1212         // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1213         // we had tried to enter more text than allowed by max text length and
1214         // the text wasn't really changed
1215         //
1216         // to detect this and generate TEXT_MAXLEN event instead of
1217         // TEXT_CHANGED one in this case we also catch "insert_text" signal
1218         //
1219         // when max len is set to 0 we disconnect our handler as it means that
1220         // we shouldn't check anything any more
1221         if ( len )
1222         {
1223             g_signal_connect (m_text, "insert_text",
1224                               G_CALLBACK (gtk_insert_text_callback), this);
1225         }
1226         else // no checking
1227         {
1228             g_signal_handlers_disconnect_by_func (m_text,
1229                     (gpointer) gtk_insert_text_callback, this);
1230         }
1231     }
1232 }
1233
1234 void wxTextCtrl::SetSelection( long from, long to )
1235 {
1236     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1237
1238     if (from == -1 && to == -1)
1239     {
1240         from = 0;
1241         to = GetValue().length();
1242     }
1243
1244     if ( IsMultiLine() )
1245     {
1246         GtkTextIter fromi, toi;
1247         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1248         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1249
1250         gtk_text_buffer_place_cursor( m_buffer, &toi );
1251         gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1252     }
1253     else
1254     {
1255         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1256     }
1257 }
1258
1259 void wxTextCtrl::ShowPosition( long pos )
1260 {
1261     if ( IsMultiLine() )
1262     {
1263         GtkTextIter iter;
1264         gtk_text_buffer_get_start_iter( m_buffer, &iter );
1265         gtk_text_iter_set_offset( &iter, pos );
1266         GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1267         gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1268     }
1269 }
1270
1271 wxTextCtrlHitTestResult
1272 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1273 {
1274     if ( !IsMultiLine() )
1275     {
1276         // not supported
1277         return wxTE_HT_UNKNOWN;
1278     }
1279
1280     int x, y;
1281     gtk_text_view_window_to_buffer_coords
1282     (
1283         GTK_TEXT_VIEW(m_text),
1284         GTK_TEXT_WINDOW_TEXT,
1285         pt.x, pt.y,
1286         &x, &y
1287     );
1288
1289     GtkTextIter iter;
1290     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1291     if ( pos )
1292         *pos = gtk_text_iter_get_offset(&iter);
1293
1294     return wxTE_HT_ON_TEXT;
1295 }
1296
1297 long wxTextCtrl::GetInsertionPoint() const
1298 {
1299     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1300
1301     if ( IsMultiLine() )
1302     {
1303         // There is no direct accessor for the cursor, but
1304         // internally, the cursor is the "mark" called
1305         // "insert" in the text view's btree structure.
1306
1307         GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1308         GtkTextIter cursor;
1309         gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1310
1311         return gtk_text_iter_get_offset( &cursor );
1312     }
1313     else
1314     {
1315         return (long) gtk_editable_get_position(GTK_EDITABLE(m_text));
1316     }
1317 }
1318
1319 wxTextPos wxTextCtrl::GetLastPosition() const
1320 {
1321     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1322
1323     int pos = 0;
1324
1325     if ( IsMultiLine() )
1326     {
1327         GtkTextIter end;
1328         gtk_text_buffer_get_end_iter( m_buffer, &end );
1329
1330         pos = gtk_text_iter_get_offset( &end );
1331     }
1332     else
1333     {
1334         pos = GTK_ENTRY(m_text)->text_length;
1335     }
1336
1337     return (long)pos;
1338 }
1339
1340 void wxTextCtrl::Remove( long from, long to )
1341 {
1342     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1343
1344     if ( IsMultiLine() )
1345     {
1346         GtkTextIter fromi, toi;
1347         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1348         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1349
1350         gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1351     }
1352     else // single line
1353         gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1354 }
1355
1356 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1357 {
1358     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1359
1360     Remove( from, to );
1361
1362     if (!value.empty())
1363     {
1364         SetInsertionPoint( from );
1365         WriteText( value );
1366     }
1367 }
1368
1369 void wxTextCtrl::Cut()
1370 {
1371     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1372
1373     if ( IsMultiLine() )
1374         g_signal_emit_by_name (m_text, "cut-clipboard");
1375     else
1376         gtk_editable_cut_clipboard(GTK_EDITABLE(m_text));
1377 }
1378
1379 void wxTextCtrl::Copy()
1380 {
1381     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1382
1383     if ( IsMultiLine() )
1384         g_signal_emit_by_name (m_text, "copy-clipboard");
1385     else
1386         gtk_editable_copy_clipboard(GTK_EDITABLE(m_text));
1387 }
1388
1389 void wxTextCtrl::Paste()
1390 {
1391     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1392
1393     if ( IsMultiLine() )
1394         g_signal_emit_by_name (m_text, "paste-clipboard");
1395     else
1396         gtk_editable_paste_clipboard(GTK_EDITABLE(m_text));
1397 }
1398
1399 // Undo/redo
1400 void wxTextCtrl::Undo()
1401 {
1402     // TODO
1403     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1404 }
1405
1406 void wxTextCtrl::Redo()
1407 {
1408     // TODO
1409     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1410 }
1411
1412 bool wxTextCtrl::CanUndo() const
1413 {
1414     // TODO
1415     //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1416     return false;
1417 }
1418
1419 bool wxTextCtrl::CanRedo() const
1420 {
1421     // TODO
1422     //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1423     return false;
1424 }
1425
1426 // If the return values from and to are the same, there is no
1427 // selection.
1428 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1429 {
1430     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1431
1432     gint from = -1;
1433     gint to = -1;
1434     bool haveSelection = false;
1435
1436      if ( IsMultiLine() )
1437      {
1438          GtkTextIter ifrom, ito;
1439          if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1440          {
1441              haveSelection = true;
1442              from = gtk_text_iter_get_offset(&ifrom);
1443              to = gtk_text_iter_get_offset(&ito);
1444          }
1445      }
1446      else  // not multi-line
1447      {
1448          if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1449                                                  &from, &to) )
1450          {
1451              haveSelection = true;
1452          }
1453      }
1454
1455      if (! haveSelection )
1456           from = to = GetInsertionPoint();
1457
1458      if ( from > to )
1459      {
1460          // exchange them to be compatible with wxMSW
1461          gint tmp = from;
1462          from = to;
1463          to = tmp;
1464      }
1465
1466     if ( fromOut )
1467         *fromOut = from;
1468     if ( toOut )
1469         *toOut = to;
1470 }
1471
1472
1473 bool wxTextCtrl::IsEditable() const
1474 {
1475     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1476
1477     if ( IsMultiLine() )
1478     {
1479         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1480     }
1481     else
1482     {
1483         return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1484     }
1485 }
1486
1487 bool wxTextCtrl::IsModified() const
1488 {
1489     return m_modified;
1490 }
1491
1492 void wxTextCtrl::Clear()
1493 {
1494     SetValue( wxEmptyString );
1495 }
1496
1497 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1498 {
1499     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1500
1501     if ( key_event.GetKeyCode() == WXK_RETURN )
1502     {
1503         if ( HasFlag(wxTE_PROCESS_ENTER) )
1504         {
1505             wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1506             event.SetEventObject(this);
1507             event.SetString(GetValue());
1508             if ( GetEventHandler()->ProcessEvent(event) )
1509                 return;
1510         }
1511
1512         // FIXME: this is not the right place to do it, wxDialog::OnCharHook()
1513         //        probably is
1514         if ( IsSingleLine() )
1515         {
1516             // This will invoke the dialog default action, such
1517             // as the clicking the default button.
1518
1519             wxWindow *top_frame = m_parent;
1520             while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1521                 top_frame = top_frame->GetParent();
1522
1523             if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1524             {
1525                 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1526
1527                 if (window->default_widget)
1528                 {
1529                     gtk_widget_activate (window->default_widget);
1530                     return;
1531                 }
1532             }
1533         }
1534     }
1535
1536     key_event.Skip();
1537 }
1538
1539 GtkWidget* wxTextCtrl::GetConnectWidget()
1540 {
1541     return GTK_WIDGET(m_text);
1542 }
1543
1544 GdkWindow *wxTextCtrl::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
1545 {
1546     if ( IsMultiLine() )
1547     {
1548         return gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1549                                         GTK_TEXT_WINDOW_TEXT );
1550     }
1551     else
1552     {
1553         return GTK_ENTRY(m_text)->text_area;
1554     }
1555 }
1556
1557 // the font will change for subsequent text insertiongs
1558 bool wxTextCtrl::SetFont( const wxFont &font )
1559 {
1560     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1561
1562     if ( !wxTextCtrlBase::SetFont(font) )
1563     {
1564         // font didn't change, nothing to do
1565         return false;
1566     }
1567
1568     if ( IsMultiLine() )
1569     {
1570         SetUpdateFont(true);
1571
1572         m_defaultStyle.SetFont(font);
1573
1574         ChangeFontGlobally();
1575     }
1576
1577     return true;
1578 }
1579
1580 void wxTextCtrl::ChangeFontGlobally()
1581 {
1582     // this method is very inefficient and hence should be called as rarely as
1583     // possible!
1584     //
1585     // TODO: it can be implemented much more efficiently for GTK2
1586     wxASSERT_MSG( IsMultiLine(),
1587                   _T("shouldn't be called for single line controls") );
1588
1589     wxString value = GetValue();
1590     if ( !value.empty() )
1591     {
1592         SetUpdateFont(false);
1593
1594         Clear();
1595         AppendText(value);
1596     }
1597 }
1598
1599 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1600 {
1601     if ( !wxControl::SetForegroundColour(colour) )
1602         return false;
1603
1604     // update default fg colour too
1605     m_defaultStyle.SetTextColour(colour);
1606
1607     return true;
1608 }
1609
1610 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1611 {
1612     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1613
1614     if ( !wxControl::SetBackgroundColour( colour ) )
1615         return false;
1616
1617     if (!m_backgroundColour.Ok())
1618         return false;
1619
1620     // change active background color too
1621     m_defaultStyle.SetBackgroundColour( colour );
1622
1623     return true;
1624 }
1625
1626 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1627 {
1628     if ( IsMultiLine() )
1629     {
1630         if ( style.IsDefault() )
1631         {
1632             // nothing to do
1633             return true;
1634         }
1635
1636         gint l = gtk_text_buffer_get_char_count( m_buffer );
1637
1638         wxCHECK_MSG( start >= 0 && end <= l, false,
1639                      _T("invalid range in wxTextCtrl::SetStyle") );
1640
1641         GtkTextIter starti, endi;
1642         gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1643         gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1644
1645         // use the attributes from style which are set in it and fall back
1646         // first to the default style and then to the text control default
1647         // colours for the others
1648         wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1649
1650         wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1651
1652         return true;
1653     }
1654
1655     // else single line
1656     // cannot do this for GTK+'s Entry widget
1657     return false;
1658 }
1659
1660 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1661 {
1662     gtk_widget_modify_style(m_text, style);
1663 }
1664
1665 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1666 {
1667     Cut();
1668 }
1669
1670 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1671 {
1672     Copy();
1673 }
1674
1675 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1676 {
1677     Paste();
1678 }
1679
1680 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1681 {
1682     Undo();
1683 }
1684
1685 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1686 {
1687     Redo();
1688 }
1689
1690 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1691 {
1692     event.Enable( CanCut() );
1693 }
1694
1695 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1696 {
1697     event.Enable( CanCopy() );
1698 }
1699
1700 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1701 {
1702     event.Enable( CanPaste() );
1703 }
1704
1705 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1706 {
1707     event.Enable( CanUndo() );
1708 }
1709
1710 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1711 {
1712     event.Enable( CanRedo() );
1713 }
1714
1715 wxSize wxTextCtrl::DoGetBestSize() const
1716 {
1717     // FIXME should be different for multi-line controls...
1718     wxSize ret( wxControl::DoGetBestSize() );
1719     wxSize best(80, ret.y);
1720     CacheBestSize(best);
1721     return best;
1722 }
1723
1724 // ----------------------------------------------------------------------------
1725 // freeze/thaw
1726 // ----------------------------------------------------------------------------
1727
1728 void wxTextCtrl::Freeze()
1729 {
1730     if ( HasFlag(wxTE_MULTILINE) )
1731     {
1732         if ( !m_frozenness++ )
1733         {
1734             // freeze textview updates and remove buffer
1735             g_signal_connect (m_text, "expose_event",
1736                               G_CALLBACK (gtk_text_exposed_callback), this);
1737             g_signal_connect (m_widget, "expose_event",
1738                               G_CALLBACK (gtk_text_exposed_callback), this);
1739             gtk_widget_set_sensitive(m_widget, false);
1740             g_object_ref(m_buffer);
1741             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
1742         }
1743     }
1744 }
1745
1746 void wxTextCtrl::Thaw()
1747 {
1748     if ( HasFlag(wxTE_MULTILINE) )
1749     {
1750         wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
1751
1752         if ( !--m_frozenness )
1753         {
1754             // Reattach buffer and thaw textview updates
1755             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1756             g_object_unref(m_buffer);
1757             gtk_widget_set_sensitive(m_widget, true);
1758             g_signal_handlers_disconnect_by_func (m_widget,
1759                     (gpointer) gtk_text_exposed_callback, this);
1760             g_signal_handlers_disconnect_by_func (m_text,
1761                     (gpointer) gtk_text_exposed_callback, this);
1762         }
1763     }
1764 }
1765
1766 // ----------------------------------------------------------------------------
1767 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
1768 // ----------------------------------------------------------------------------
1769
1770 // FIXME: when dragging on a link the sample gets an "Unknown event".
1771 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
1772 // a buggy sample, or something else
1773 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
1774 {
1775     event.Skip();
1776     if( !HasFlag(wxTE_AUTO_URL) )
1777         return;
1778
1779     gint x, y;
1780     GtkTextIter start, end;
1781     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
1782                                                 "wxUrl");
1783
1784     gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
1785                                           event.GetX(), event.GetY(), &x, &y);
1786
1787     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
1788     if (!gtk_text_iter_has_tag(&end, tag))
1789     {
1790         gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1791                               GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
1792         return;
1793     }
1794
1795     gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1796                           GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
1797
1798     start = end;
1799     if(!gtk_text_iter_begins_tag(&start, tag))
1800         gtk_text_iter_backward_to_tag_toggle(&start, tag);
1801     if(!gtk_text_iter_ends_tag(&end, tag))
1802         gtk_text_iter_forward_to_tag_toggle(&end, tag);
1803
1804     // Native context menu is probably not desired on an URL.
1805     // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
1806     if(event.GetEventType() == wxEVT_RIGHT_DOWN)
1807         event.Skip(false);
1808
1809     wxTextUrlEvent url_event(m_windowId, event,
1810                              gtk_text_iter_get_offset(&start),
1811                              gtk_text_iter_get_offset(&end));
1812
1813     InitCommandEvent(url_event);
1814     // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
1815     //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
1816     GetEventHandler()->ProcessEvent(url_event);
1817 }
1818
1819 // static
1820 wxVisualAttributes
1821 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1822 {
1823     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1824 }