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