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->MarkDirty();
 458
 459     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
 460     event.SetEventObject( win );
 461     win->GetEventHandler()->ProcessEvent( event );
 462 }
 463 }
 464
 465 //-----------------------------------------------------------------------------
 466 //  clipboard events: "copy-clipboard", "cut-clipboard", "paste-clipboard"
 467 //-----------------------------------------------------------------------------
 468
 469 // common part of the event handlers below
 470 static void
 471 handle_text_clipboard_callback( GtkWidget *widget, wxTextCtrl *win,
 472                                                                 wxEventType eventType, const gchar * signal_name)
 473 {
 474     wxClipboardTextEvent event( eventType, win->GetId() );
 475     event.SetEventObject( win );
 476     if ( win->GetEventHandler()->ProcessEvent( event ) )
 477     {
 478         // don't let the default processing to take place if we did something
 479         // ourselves in the event handler
 480         g_signal_stop_emission_by_name (widget, signal_name);
 481     }
 482 }
 483
 484 extern "C" {
 485 static void
 486 gtk_copy_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 487 {
 488         handle_text_clipboard_callback(
 489                 widget, win, wxEVT_COMMAND_TEXT_COPY, "copy-clipboard" );
 490 }
 491
 492 static void
 493 gtk_cut_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 494 {
 495         handle_text_clipboard_callback(
 496                 widget, win, wxEVT_COMMAND_TEXT_CUT, "cut-clipboard" );
 497 }
 498
 499 static void
 500 gtk_paste_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 501 {
 502         handle_text_clipboard_callback(
 503                 widget, win, wxEVT_COMMAND_TEXT_PASTE, "paste-clipboard" );
 504 }
 505 }
 506
 507 //-----------------------------------------------------------------------------
 508 // "expose_event" from scrolled window and textview
 509 //-----------------------------------------------------------------------------
 510
 511 extern "C" {
 512 static gboolean
 513 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
 514 {
 515     return TRUE;
 516 }
 517 }
 518
 519
 520 //-----------------------------------------------------------------------------
 521 //  wxTextCtrl
 522 //-----------------------------------------------------------------------------
 523
 524 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
 525
 526 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 527     EVT_CHAR(wxTextCtrl::OnChar)
 528
 529     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 530     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 531     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 532     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 533     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 534
 535     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 536     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 537     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 538     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 539     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 540
 541     // wxTE_AUTO_URL wxTextUrl support. Currently only creates
 542     // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
 543     EVT_MOTION      (wxTextCtrl::OnUrlMouseEvent)
 544     EVT_LEFT_DOWN   (wxTextCtrl::OnUrlMouseEvent)
 545     EVT_LEFT_UP     (wxTextCtrl::OnUrlMouseEvent)
 546     EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
 547     EVT_RIGHT_DOWN  (wxTextCtrl::OnUrlMouseEvent)
 548     EVT_RIGHT_UP    (wxTextCtrl::OnUrlMouseEvent)
 549     EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
 550 END_EVENT_TABLE()
 551
 552 void wxTextCtrl::Init()
 553 {
 554     m_ignoreNextUpdate =
 555     m_modified = false;
 556     SetUpdateFont(false);
 557     m_text = NULL;
 558     m_frozenness = 0;
 559     m_gdkHandCursor = NULL;
 560     m_gdkXTermCursor = NULL;
 561 }
 562
 563 wxTextCtrl::~wxTextCtrl()
 564 {
 565     if(m_gdkHandCursor)
 566         gdk_cursor_unref(m_gdkHandCursor);
 567     if(m_gdkXTermCursor)
 568         gdk_cursor_unref(m_gdkXTermCursor);
 569 }
 570
 571 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 572                         wxWindowID id,
 573                         const wxString &value,
 574                         const wxPoint &pos,
 575                         const wxSize &size,
 576                         long style,
 577                         const wxValidator& validator,
 578                         const wxString &name )
 579 {
 580     Init();
 581
 582     Create( parent, id, value, pos, size, style, validator, name );
 583 }
 584
 585 bool wxTextCtrl::Create( wxWindow *parent,
 586                          wxWindowID id,
 587                          const wxString &value,
 588                          const wxPoint &pos,
 589                          const wxSize &size,
 590                          long style,
 591                          const wxValidator& validator,
 592                          const wxString &name )
 593 {
 594     m_needParent = true;
 595     m_acceptsFocus = true;
 596
 597     if (!PreCreation( parent, pos, size ) ||
 598         !CreateBase( parent, id, pos, size, style, validator, name ))
 599     {
 600         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 601         return false;
 602     }
 603
 604     bool multi_line = (style & wxTE_MULTILINE) != 0;
 605
 606     if (multi_line)
 607     {
 608         // Create view
 609         m_text = gtk_text_view_new();
 610
 611         m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 612
 613         // create scrolled window
 614         m_widget = gtk_scrolled_window_new( NULL, NULL );
 615         gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
 616                                         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 617
 618         // Insert view into scrolled window
 619         gtk_container_add( GTK_CONTAINER(m_widget), m_text );
 620
 621         // translate wx wrapping style to GTK+
 622         GtkWrapMode wrap;
 623         if ( HasFlag( wxTE_DONTWRAP ) )
 624             wrap = GTK_WRAP_NONE;
 625         else if ( HasFlag( wxTE_CHARWRAP ) )
 626             wrap = GTK_WRAP_CHAR;
 627         else if ( HasFlag( wxTE_WORDWRAP ) )
 628             wrap = GTK_WRAP_WORD;
 629         else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
 630         {
 631             // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
 632 #ifdef __WXGTK24__
 633             if ( !gtk_check_version(2,4,0) )
 634             {
 635                 wrap = GTK_WRAP_WORD_CHAR;
 636             }
 637             else
 638 #endif
 639             wrap = GTK_WRAP_WORD;
 640         }
 641
 642         gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
 643
 644         GtkScrolledWindowSetBorder(m_widget, style);
 645
 646         gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
 647
 648         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 649     }
 650     else
 651     {
 652         // a single-line text control: no need for scrollbars
 653         m_widget =
 654         m_text = gtk_entry_new();
 655
 656         if (style & wxNO_BORDER)
 657             g_object_set (m_text, "has-frame", FALSE, NULL);
 658     }
 659
 660     m_parent->DoAddChild( this );
 661
 662     m_focusWidget = m_text;
 663
 664     PostCreation(size);
 665
 666     if (multi_line)
 667     {
 668         gtk_widget_show(m_text);
 669         SetVScrollAdjustment(gtk_scrolled_window_get_vadjustment((GtkScrolledWindow*)m_widget));
 670     }
 671
 672     if (!value.empty())
 673     {
 674         SetValue( value );
 675     }
 676
 677     if (style & wxTE_PASSWORD)
 678     {
 679         if (!multi_line)
 680             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 681     }
 682
 683     if (style & wxTE_READONLY)
 684     {
 685         if (!multi_line)
 686             gtk_editable_set_editable( GTK_EDITABLE(m_text), FALSE );
 687         else
 688             gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
 689     }
 690
 691     if (multi_line)
 692     {
 693         if (style & wxTE_RIGHT)
 694             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
 695         else if (style & wxTE_CENTRE)
 696             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
 697         // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
 698     }
 699     else
 700     {
 701 #ifdef __WXGTK24__
 702         // gtk_entry_set_alignment was introduced in gtk+-2.3.5
 703         if (!gtk_check_version(2,4,0))
 704         {
 705             if (style & wxTE_RIGHT)
 706                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
 707             else if (style & wxTE_CENTRE)
 708                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
 709         }
 710 #endif
 711     }
 712
 713     // We want to be notified about text changes.
 714     if (multi_line)
 715     {
 716         g_signal_connect (m_buffer, "changed",
 717                           G_CALLBACK (gtk_text_changed_callback), this);
 718
 719         // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
 720         if (style & wxTE_AUTO_URL)
 721         {
 722             GtkTextIter start, end;
 723             m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
 724             m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
 725
 726             // We create our wxUrl tag here for slight efficiency gain - we
 727             // don't have to check for the tag existance in callbacks,
 728             // hereby it's guaranteed to exist.
 729             gtk_text_buffer_create_tag(m_buffer, "wxUrl",
 730                                        "foreground", "blue",
 731                                        "underline", PANGO_UNDERLINE_SINGLE,
 732                                        NULL);
 733
 734             // Check for URLs after each text change
 735             g_signal_connect_after (m_buffer, "insert_text",
 736                                     G_CALLBACK (au_insert_text_callback), this);
 737             g_signal_connect_after (m_buffer, "delete_range",
 738                                     G_CALLBACK (au_delete_range_callback), this);
 739
 740             // Block all wxUrl tag applying unless we do it ourselves, in which case we
 741             // block this callback temporarily. This takes care of gtk+ internal
 742             // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
 743             // which is undesired because only a part of the URL might be copied.
 744             // The insert-text signal emitted inside it will take care of newly formed
 745             // or wholly copied URLs.
 746             g_signal_connect (m_buffer, "apply_tag",
 747                               G_CALLBACK (au_apply_tag_callback), NULL);
 748
 749             // Check for URLs in the initial string passed to Create
 750             gtk_text_buffer_get_start_iter(m_buffer, &start);
 751             gtk_text_buffer_get_end_iter(m_buffer, &end);
 752             au_check_range(&start, &end);
 753         }
 754     }
 755     else
 756     {
 757         g_signal_connect (m_text, "changed",
 758                           G_CALLBACK (gtk_text_changed_callback), this);
 759     }
 760
 761     g_signal_connect (m_text, "copy-clipboard",
 762                       G_CALLBACK (gtk_copy_clipboard_callback), this);
 763     g_signal_connect (m_text, "cut-clipboard",
 764                       G_CALLBACK (gtk_cut_clipboard_callback), this);
 765     g_signal_connect (m_text, "paste-clipboard",
 766                       G_CALLBACK (gtk_paste_clipboard_callback), this);
 767
 768     m_cursor = wxCursor( wxCURSOR_IBEAM );
 769
 770     wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
 771     SetDefaultStyle( attrDef );
 772
 773     return true;
 774 }
 775
 776
 777 void wxTextCtrl::CalculateScrollbar()
 778 {
 779 }
 780
 781 wxString wxTextCtrl::GetValue() const
 782 {
 783     wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
 784
 785     wxString tmp;
 786     if (m_windowStyle & wxTE_MULTILINE)
 787     {
 788         GtkTextIter start;
 789         gtk_text_buffer_get_start_iter( m_buffer, &start );
 790         GtkTextIter end;
 791         gtk_text_buffer_get_end_iter( m_buffer, &end );
 792         gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
 793
 794         const wxWxCharBuffer buf = wxGTK_CONV_BACK(text);
 795         if ( buf )
 796             tmp = buf;
 797
 798         g_free( text );
 799     }
 800     else
 801     {
 802         const gchar *text = gtk_entry_get_text( GTK_ENTRY(m_text) );
 803         const wxWxCharBuffer buf = wxGTK_CONV_BACK( text );
 804         if ( buf )
 805             tmp = buf;
 806     }
 807
 808     return tmp;
 809 }
 810
 811 void wxTextCtrl::SetValue( const wxString &value )
 812 {
 813     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 814
 815     if (m_windowStyle & wxTE_MULTILINE)
 816     {
 817         const wxCharBuffer buffer(wxGTK_CONV(value));
 818         if ( !buffer )
 819         {
 820             // what else can we do? at least don't crash...
 821             return;
 822         }
 823
 824         if (gtk_text_buffer_get_char_count(m_buffer) != 0)
 825             IgnoreNextTextUpdate();
 826
 827         gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
 828     }
 829     else // single line
 830     {
 831         // gtk_entry_set_text() emits two "changed" signals because internally
 832         // it calls gtk_editable_delete_text() and gtk_editable_insert_text()
 833         // but we want to have only one event
 834         IgnoreNextTextUpdate();
 835
 836         gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV(value) );
 837     }
 838
 839     // GRG, Jun/2000: Changed this after a lot of discussion in
 840     //   the lists. wxWidgets 2.2 will have a set of flags to
 841     //   customize this behaviour.
 842     SetInsertionPoint(0);
 843
 844     m_modified = false;
 845 }
 846
 847 void wxTextCtrl::WriteText( const wxString &text )
 848 {
 849     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 850
 851     if ( text.empty() )
 852         return;
 853
 854     const wxCharBuffer buffer(wxGTK_CONV(text));
 855     if ( !buffer )
 856     {
 857         // what else can we do? at least don't crash...
 858         return;
 859     }
 860
 861     // gtk_text_changed_callback() will set m_modified to true but m_modified
 862     // shouldn't be changed by the program writing to the text control itself,
 863     // so save the old value and restore when we're done
 864     bool oldModified = m_modified;
 865
 866     if ( m_windowStyle & wxTE_MULTILINE )
 867     {
 868         // First remove the selection if there is one
 869         // TODO:  Is there an easier GTK specific way to do this?
 870         long from, to;
 871         GetSelection(&from, &to);
 872         if (from != to)
 873             Remove(from, to);
 874
 875         // Insert the text
 876         wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
 877
 878         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
 879         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
 880         if ( wxIsSameDouble(adj->value, adj->upper - adj->page_size) )
 881         {
 882             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
 883                     gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
 884         }
 885     }
 886     else // single line
 887     {
 888         // First remove the selection if there is one
 889         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
 890
 891         // This moves the cursor pos to behind the inserted text.
 892         gint len = gtk_editable_get_position(GTK_EDITABLE(m_text));
 893
 894         gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
 895
 896         // Bring entry's cursor uptodate.
 897         gtk_editable_set_position( GTK_EDITABLE(m_text), len );
 898     }
 899
 900     m_modified = oldModified;
 901 }
 902
 903 void wxTextCtrl::AppendText( const wxString &text )
 904 {
 905     SetInsertionPointEnd();
 906     WriteText( text );
 907 }
 908
 909 wxString wxTextCtrl::GetLineText( long lineNo ) const
 910 {
 911     if (m_windowStyle & wxTE_MULTILINE)
 912     {
 913         GtkTextIter line;
 914         gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
 915         GtkTextIter end = line;
 916         gtk_text_iter_forward_to_line_end(&end);
 917         gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
 918         wxString result(wxGTK_CONV_BACK(text));
 919         g_free(text);
 920         return result;
 921     }
 922     else
 923     {
 924         if (lineNo == 0) return GetValue();
 925         return wxEmptyString;
 926     }
 927 }
 928
 929 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 930 {
 931   /* If you implement this, don't forget to update the documentation!
 932    * (file docs/latex/wx/text.tex) */
 933     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
 934 }
 935
 936 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 937 {
 938     if ( m_windowStyle & wxTE_MULTILINE )
 939     {
 940         GtkTextIter iter;
 941         gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
 942         if (gtk_text_iter_is_end(&iter))
 943             return false;
 944
 945         *y = gtk_text_iter_get_line(&iter);
 946         *x = gtk_text_iter_get_line_offset(&iter);
 947     }
 948     else // single line control
 949     {
 950         if ( pos <= GTK_ENTRY(m_text)->text_length )
 951         {
 952             *y = 0;
 953             *x = pos;
 954         }
 955         else
 956         {
 957             // index out of bounds
 958             return false;
 959         }
 960     }
 961
 962     return true;
 963 }
 964
 965 long wxTextCtrl::XYToPosition(long x, long y ) const
 966 {
 967     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 968
 969     GtkTextIter iter;
 970     if (y >= gtk_text_buffer_get_line_count (m_buffer))
 971         return -1;
 972
 973     gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
 974     if (x >= gtk_text_iter_get_chars_in_line (&iter))
 975         return -1;
 976
 977     return gtk_text_iter_get_offset(&iter) + x;
 978 }
 979
 980 int wxTextCtrl::GetLineLength(long lineNo) const
 981 {
 982     if (m_windowStyle & wxTE_MULTILINE)
 983     {
 984         int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
 985         if (lineNo > last_line)
 986             return -1;
 987
 988         GtkTextIter iter;
 989         gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
 990         // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
 991         return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
 992     }
 993     else
 994     {
 995         wxString str = GetLineText (lineNo);
 996         return (int) str.length();
 997     }
 998 }
 999
1000 int wxTextCtrl::GetNumberOfLines() const
1001 {
1002     if ( m_windowStyle & wxTE_MULTILINE )
1003     {
1004         GtkTextIter iter;
1005         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, 0 );
1006
1007         // move forward by one display line until the end is reached
1008         int lineCount = 1;
1009         while ( gtk_text_view_forward_display_line(GTK_TEXT_VIEW(m_text), &iter) )
1010         {
1011             lineCount++;
1012         }
1013
1014         // If the last character in the text buffer is a newline,
1015         // gtk_text_view_forward_display_line() will return false without that
1016         // line being counted. Must add one manually in that case.
1017         GtkTextIter lastCharIter;
1018         gtk_text_buffer_get_iter_at_offset
1019         (
1020             m_buffer,
1021             &lastCharIter,
1022             gtk_text_buffer_get_char_count(m_buffer) - 1
1023         );
1024         gchar lastChar = gtk_text_iter_get_char( &lastCharIter );
1025         if ( lastChar == wxT('\n') )
1026             lineCount++;
1027
1028         return lineCount;
1029     }
1030     else // single line
1031     {
1032         return 1;
1033     }
1034 }
1035
1036 void wxTextCtrl::SetInsertionPoint( long pos )
1037 {
1038     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1039
1040     if ( IsMultiLine() )
1041     {
1042         GtkTextIter iter;
1043         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1044         gtk_text_buffer_place_cursor( m_buffer, &iter );
1045         gtk_text_view_scroll_mark_onscreen
1046         (
1047             GTK_TEXT_VIEW(m_text),
1048             gtk_text_buffer_get_insert( m_buffer )
1049         );
1050     }
1051     else
1052     {
1053         // FIXME: Is the editable's cursor really uptodate without double set_position in GTK2?
1054         gtk_editable_set_position(GTK_EDITABLE(m_text), int(pos));
1055     }
1056 }
1057
1058 void wxTextCtrl::SetInsertionPointEnd()
1059 {
1060     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1061
1062     if (m_windowStyle & wxTE_MULTILINE)
1063     {
1064         GtkTextIter end;
1065         gtk_text_buffer_get_end_iter( m_buffer, &end );
1066         gtk_text_buffer_place_cursor( m_buffer, &end );
1067     }
1068     else
1069     {
1070         gtk_editable_set_position( GTK_EDITABLE(m_text), -1 );
1071     }
1072 }
1073
1074 void wxTextCtrl::SetEditable( bool editable )
1075 {
1076     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1077
1078     if (m_windowStyle & wxTE_MULTILINE)
1079     {
1080         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1081     }
1082     else
1083     {
1084         gtk_editable_set_editable( GTK_EDITABLE(m_text), editable );
1085     }
1086 }
1087
1088 bool wxTextCtrl::Enable( bool enable )
1089 {
1090     if (!wxWindowBase::Enable(enable))
1091     {
1092         // nothing to do
1093         return false;
1094     }
1095
1096     if (m_windowStyle & wxTE_MULTILINE)
1097     {
1098         SetEditable( enable );
1099     }
1100     else
1101     {
1102         gtk_widget_set_sensitive( m_text, enable );
1103     }
1104
1105     return true;
1106 }
1107
1108 // wxGTK-specific: called recursively by Enable,
1109 // to give widgets an oppprtunity to correct their colours after they
1110 // have been changed by Enable
1111 void wxTextCtrl::OnParentEnable( bool enable )
1112 {
1113     // If we have a custom background colour, we use this colour in both
1114     // disabled and enabled mode, or we end up with a different colour under the
1115     // text.
1116     wxColour oldColour = GetBackgroundColour();
1117     if (oldColour.Ok())
1118     {
1119         // Need to set twice or it'll optimize the useful stuff out
1120         if (oldColour == * wxWHITE)
1121             SetBackgroundColour(*wxBLACK);
1122         else
1123             SetBackgroundColour(*wxWHITE);
1124         SetBackgroundColour(oldColour);
1125     }
1126 }
1127
1128 void wxTextCtrl::MarkDirty()
1129 {
1130     m_modified = true;
1131 }
1132
1133 void wxTextCtrl::DiscardEdits()
1134 {
1135     m_modified = false;
1136 }
1137
1138 // ----------------------------------------------------------------------------
1139 // max text length support
1140 // ----------------------------------------------------------------------------
1141
1142 void wxTextCtrl::IgnoreNextTextUpdate()
1143 {
1144     m_ignoreNextUpdate = true;
1145 }
1146
1147 bool wxTextCtrl::IgnoreTextUpdate()
1148 {
1149     if ( m_ignoreNextUpdate )
1150     {
1151         m_ignoreNextUpdate = false;
1152
1153         return true;
1154     }
1155
1156     return false;
1157 }
1158
1159 void wxTextCtrl::SetMaxLength(unsigned long len)
1160 {
1161     if ( !HasFlag(wxTE_MULTILINE) )
1162     {
1163         gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1164
1165         // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1166         // we had tried to enter more text than allowed by max text length and
1167         // the text wasn't really changed
1168         //
1169         // to detect this and generate TEXT_MAXLEN event instead of
1170         // TEXT_CHANGED one in this case we also catch "insert_text" signal
1171         //
1172         // when max len is set to 0 we disconnect our handler as it means that
1173         // we shouldn't check anything any more
1174         if ( len )
1175         {
1176             g_signal_connect (m_text, "insert_text",
1177                               G_CALLBACK (gtk_insert_text_callback), this);
1178         }
1179         else // no checking
1180         {
1181             g_signal_handlers_disconnect_by_func (m_text,
1182                     (gpointer) gtk_insert_text_callback, this);
1183         }
1184     }
1185 }
1186
1187 void wxTextCtrl::SetSelection( long from, long to )
1188 {
1189     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1190
1191     if (from == -1 && to == -1)
1192     {
1193         from = 0;
1194         to = GetValue().length();
1195     }
1196
1197     if (m_windowStyle & wxTE_MULTILINE)
1198     {
1199         GtkTextIter fromi, toi;
1200         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1201         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1202
1203         gtk_text_buffer_place_cursor( m_buffer, &toi );
1204         gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1205     }
1206     else
1207     {
1208         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1209     }
1210 }
1211
1212 void wxTextCtrl::ShowPosition( long pos )
1213 {
1214     if (m_windowStyle & wxTE_MULTILINE)
1215     {
1216         GtkTextIter iter;
1217         gtk_text_buffer_get_start_iter( m_buffer, &iter );
1218         gtk_text_iter_set_offset( &iter, pos );
1219         GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1220         gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1221     }
1222 }
1223
1224 wxTextCtrlHitTestResult
1225 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1226 {
1227     if ( !IsMultiLine() )
1228     {
1229         // not supported
1230         return wxTE_HT_UNKNOWN;
1231     }
1232
1233     int x, y;
1234     gtk_text_view_window_to_buffer_coords
1235     (
1236         GTK_TEXT_VIEW(m_text),
1237         GTK_TEXT_WINDOW_TEXT,
1238         pt.x, pt.y,
1239         &x, &y
1240     );
1241
1242     GtkTextIter iter;
1243     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1244     if ( pos )
1245         *pos = gtk_text_iter_get_offset(&iter);
1246
1247     return wxTE_HT_ON_TEXT;
1248 }
1249
1250 long wxTextCtrl::GetInsertionPoint() const
1251 {
1252     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1253
1254     if (m_windowStyle & wxTE_MULTILINE)
1255     {
1256         // There is no direct accessor for the cursor, but
1257         // internally, the cursor is the "mark" called
1258         // "insert" in the text view's btree structure.
1259
1260         GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1261         GtkTextIter cursor;
1262         gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1263
1264         return gtk_text_iter_get_offset( &cursor );
1265     }
1266     else
1267     {
1268         return (long) gtk_editable_get_position(GTK_EDITABLE(m_text));
1269     }
1270 }
1271
1272 wxTextPos wxTextCtrl::GetLastPosition() const
1273 {
1274     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1275
1276     int pos = 0;
1277
1278     if (m_windowStyle & wxTE_MULTILINE)
1279     {
1280         GtkTextIter end;
1281         gtk_text_buffer_get_end_iter( m_buffer, &end );
1282
1283         pos = gtk_text_iter_get_offset( &end );
1284     }
1285     else
1286     {
1287         pos = GTK_ENTRY(m_text)->text_length;
1288     }
1289
1290     return (long)pos;
1291 }
1292
1293 void wxTextCtrl::Remove( long from, long to )
1294 {
1295     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1296
1297     if (m_windowStyle & wxTE_MULTILINE)
1298     {
1299         GtkTextIter fromi, toi;
1300         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1301         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1302
1303         gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1304     }
1305     else // single line
1306         gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1307 }
1308
1309 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1310 {
1311     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1312
1313     Remove( from, to );
1314
1315     if (!value.empty())
1316     {
1317         SetInsertionPoint( from );
1318         WriteText( value );
1319     }
1320 }
1321
1322 void wxTextCtrl::Cut()
1323 {
1324     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1325
1326     if (m_windowStyle & wxTE_MULTILINE)
1327         g_signal_emit_by_name (m_text, "cut-clipboard");
1328     else
1329         gtk_editable_cut_clipboard(GTK_EDITABLE(m_text));
1330 }
1331
1332 void wxTextCtrl::Copy()
1333 {
1334     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1335
1336     if (m_windowStyle & wxTE_MULTILINE)
1337         g_signal_emit_by_name (m_text, "copy-clipboard");
1338     else
1339         gtk_editable_copy_clipboard(GTK_EDITABLE(m_text));
1340 }
1341
1342 void wxTextCtrl::Paste()
1343 {
1344     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1345
1346     if (m_windowStyle & wxTE_MULTILINE)
1347         g_signal_emit_by_name (m_text, "paste-clipboard");
1348     else
1349         gtk_editable_paste_clipboard(GTK_EDITABLE(m_text));
1350 }
1351
1352 // Undo/redo
1353 void wxTextCtrl::Undo()
1354 {
1355     // TODO
1356     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1357 }
1358
1359 void wxTextCtrl::Redo()
1360 {
1361     // TODO
1362     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1363 }
1364
1365 bool wxTextCtrl::CanUndo() const
1366 {
1367     // TODO
1368     //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1369     return false;
1370 }
1371
1372 bool wxTextCtrl::CanRedo() const
1373 {
1374     // TODO
1375     //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1376     return false;
1377 }
1378
1379 // If the return values from and to are the same, there is no
1380 // selection.
1381 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1382 {
1383     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1384
1385     gint from = -1;
1386     gint to = -1;
1387     bool haveSelection = false;
1388
1389      if (m_windowStyle & wxTE_MULTILINE)
1390      {
1391          GtkTextIter ifrom, ito;
1392          if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1393          {
1394              haveSelection = true;
1395              from = gtk_text_iter_get_offset(&ifrom);
1396              to = gtk_text_iter_get_offset(&ito);
1397          }
1398      }
1399      else  // not multi-line
1400      {
1401          if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1402                                                  &from, &to) )
1403          {
1404              haveSelection = true;
1405          }
1406      }
1407
1408      if (! haveSelection )
1409           from = to = GetInsertionPoint();
1410
1411      if ( from > to )
1412      {
1413          // exchange them to be compatible with wxMSW
1414          gint tmp = from;
1415          from = to;
1416          to = tmp;
1417      }
1418
1419     if ( fromOut )
1420         *fromOut = from;
1421     if ( toOut )
1422         *toOut = to;
1423 }
1424
1425
1426 bool wxTextCtrl::IsEditable() const
1427 {
1428     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1429
1430     if (m_windowStyle & wxTE_MULTILINE)
1431     {
1432         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1433     }
1434     else
1435     {
1436         return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1437     }
1438 }
1439
1440 bool wxTextCtrl::IsModified() const
1441 {
1442     return m_modified;
1443 }
1444
1445 void wxTextCtrl::Clear()
1446 {
1447     SetValue( wxEmptyString );
1448 }
1449
1450 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1451 {
1452     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1453
1454     if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxTE_PROCESS_ENTER))
1455     {
1456         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1457         event.SetEventObject(this);
1458         event.SetString(GetValue());
1459         if (GetEventHandler()->ProcessEvent(event)) return;
1460     }
1461
1462     if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1463     {
1464         // This will invoke the dialog default action, such
1465         // as the clicking the default button.
1466
1467         wxWindow *top_frame = m_parent;
1468         while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1469             top_frame = top_frame->GetParent();
1470
1471         if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1472         {
1473             GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1474
1475             if (window->default_widget)
1476             {
1477                 gtk_widget_activate (window->default_widget);
1478                 return;
1479             }
1480         }
1481     }
1482
1483     key_event.Skip();
1484 }
1485
1486 GtkWidget* wxTextCtrl::GetConnectWidget()
1487 {
1488     return GTK_WIDGET(m_text);
1489 }
1490
1491 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1492 {
1493     if (m_windowStyle & wxTE_MULTILINE)
1494     {
1495         return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT );  // pure guesswork
1496     }
1497     else
1498     {
1499         return (window == GTK_ENTRY(m_text)->text_area);
1500     }
1501 }
1502
1503 // the font will change for subsequent text insertiongs
1504 bool wxTextCtrl::SetFont( const wxFont &font )
1505 {
1506     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1507
1508     if ( !wxTextCtrlBase::SetFont(font) )
1509     {
1510         // font didn't change, nothing to do
1511         return false;
1512     }
1513
1514     if ( m_windowStyle & wxTE_MULTILINE )
1515     {
1516         SetUpdateFont(true);
1517
1518         m_defaultStyle.SetFont(font);
1519
1520         ChangeFontGlobally();
1521     }
1522
1523     return true;
1524 }
1525
1526 void wxTextCtrl::ChangeFontGlobally()
1527 {
1528     // this method is very inefficient and hence should be called as rarely as
1529     // possible!
1530     //
1531     // TODO: it can be implemented much more efficiently for GTK2
1532     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1533                   _T("shouldn't be called for single line controls") );
1534
1535     wxString value = GetValue();
1536     if ( !value.empty() )
1537     {
1538         SetUpdateFont(false);
1539
1540         Clear();
1541         AppendText(value);
1542     }
1543 }
1544
1545 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1546 {
1547     if ( !wxControl::SetForegroundColour(colour) )
1548         return false;
1549
1550     // update default fg colour too
1551     m_defaultStyle.SetTextColour(colour);
1552
1553     return true;
1554 }
1555
1556 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1557 {
1558     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1559
1560     if ( !wxControl::SetBackgroundColour( colour ) )
1561         return false;
1562
1563     if (!m_backgroundColour.Ok())
1564         return false;
1565
1566     // change active background color too
1567     m_defaultStyle.SetBackgroundColour( colour );
1568
1569     return true;
1570 }
1571
1572 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1573 {
1574     if ( m_windowStyle & wxTE_MULTILINE )
1575     {
1576         if ( style.IsDefault() )
1577         {
1578             // nothing to do
1579             return true;
1580         }
1581
1582         gint l = gtk_text_buffer_get_char_count( m_buffer );
1583
1584         wxCHECK_MSG( start >= 0 && end <= l, false,
1585                      _T("invalid range in wxTextCtrl::SetStyle") );
1586
1587         GtkTextIter starti, endi;
1588         gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1589         gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1590
1591         // use the attributes from style which are set in it and fall back
1592         // first to the default style and then to the text control default
1593         // colours for the others
1594         wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1595
1596         wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1597
1598         return true;
1599     }
1600
1601     // else single line
1602     // cannot do this for GTK+'s Entry widget
1603     return false;
1604 }
1605
1606 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1607 {
1608     gtk_widget_modify_style(m_text, style);
1609 }
1610
1611 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1612 {
1613     Cut();
1614 }
1615
1616 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1617 {
1618     Copy();
1619 }
1620
1621 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1622 {
1623     Paste();
1624 }
1625
1626 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1627 {
1628     Undo();
1629 }
1630
1631 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1632 {
1633     Redo();
1634 }
1635
1636 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1637 {
1638     event.Enable( CanCut() );
1639 }
1640
1641 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1642 {
1643     event.Enable( CanCopy() );
1644 }
1645
1646 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1647 {
1648     event.Enable( CanPaste() );
1649 }
1650
1651 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1652 {
1653     event.Enable( CanUndo() );
1654 }
1655
1656 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1657 {
1658     event.Enable( CanRedo() );
1659 }
1660
1661 void wxTextCtrl::OnInternalIdle()
1662 {
1663     if (g_delayedFocus == this)
1664     {
1665         if (GTK_WIDGET_REALIZED(m_widget))
1666         {
1667             gtk_widget_grab_focus( m_widget );
1668             g_delayedFocus = NULL;
1669         }
1670     }
1671
1672     if (wxUpdateUIEvent::CanUpdate(this))
1673         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1674 }
1675
1676 wxSize wxTextCtrl::DoGetBestSize() const
1677 {
1678     // FIXME should be different for multi-line controls...
1679     wxSize ret( wxControl::DoGetBestSize() );
1680     wxSize best(80, ret.y);
1681     CacheBestSize(best);
1682     return best;
1683 }
1684
1685 // ----------------------------------------------------------------------------
1686 // freeze/thaw
1687 // ----------------------------------------------------------------------------
1688
1689 void wxTextCtrl::Freeze()
1690 {
1691     if ( HasFlag(wxTE_MULTILINE) )
1692     {
1693         if ( !m_frozenness++ )
1694         {
1695             // freeze textview updates and remove buffer
1696             g_signal_connect (m_text, "expose_event",
1697                               G_CALLBACK (gtk_text_exposed_callback), this);
1698             g_signal_connect (m_widget, "expose_event",
1699                               G_CALLBACK (gtk_text_exposed_callback), this);
1700             gtk_widget_set_sensitive(m_widget, false);
1701             g_object_ref(m_buffer);
1702             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
1703         }
1704     }
1705 }
1706
1707 void wxTextCtrl::Thaw()
1708 {
1709     if ( HasFlag(wxTE_MULTILINE) )
1710     {
1711         wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
1712
1713         if ( !--m_frozenness )
1714         {
1715             // Reattach buffer and thaw textview updates
1716             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1717             g_object_unref(m_buffer);
1718             gtk_widget_set_sensitive(m_widget, true);
1719             g_signal_handlers_disconnect_by_func (m_widget,
1720                     (gpointer) gtk_text_exposed_callback, this);
1721             g_signal_handlers_disconnect_by_func (m_text,
1722                     (gpointer) gtk_text_exposed_callback, this);
1723         }
1724     }
1725 }
1726
1727 // ----------------------------------------------------------------------------
1728 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
1729 // ----------------------------------------------------------------------------
1730
1731 // FIXME: when dragging on a link the sample gets an "Unknown event".
1732 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
1733 // a buggy sample, or something else
1734 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
1735 {
1736     event.Skip();
1737     if(!(m_windowStyle & wxTE_AUTO_URL))
1738         return;
1739
1740     gint x, y;
1741     GtkTextIter start, end;
1742     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
1743                                                 "wxUrl");
1744
1745     gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
1746                                           event.GetX(), event.GetY(), &x, &y);
1747
1748     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
1749     if (!gtk_text_iter_has_tag(&end, tag))
1750     {
1751         gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1752                               GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
1753         return;
1754     }
1755
1756     gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1757                           GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
1758
1759     start = end;
1760     if(!gtk_text_iter_begins_tag(&start, tag))
1761         gtk_text_iter_backward_to_tag_toggle(&start, tag);
1762     if(!gtk_text_iter_ends_tag(&end, tag))
1763         gtk_text_iter_forward_to_tag_toggle(&end, tag);
1764
1765     // Native context menu is probably not desired on an URL.
1766     // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
1767     if(event.GetEventType() == wxEVT_RIGHT_DOWN)
1768         event.Skip(false);
1769
1770     wxTextUrlEvent url_event(m_windowId, event,
1771                              gtk_text_iter_get_offset(&start),
1772                              gtk_text_iter_get_offset(&end));
1773
1774     InitCommandEvent(url_event);
1775     // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
1776     //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
1777     GetEventHandler()->ProcessEvent(url_event);
1778 }
1779
1780 // static
1781 wxVisualAttributes
1782 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1783 {
1784     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1785 }