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