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